Journal articles: 'Multiple three-phase motor drives'

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Muqorobin, Anwar, and Pekik Argo Dahono. "Study of current ripple characteristics of inverter-fed multiple three-phase AC motors." International Journal of Power Electronics and Drive Systems (IJPEDS) 13, no. 1 (March 1, 2022): 68. http://dx.doi.org/10.11591/ijpeds.v13.i1.pp68-83.

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The need of higher power and more reliable applications have promoted the use of multiphase alternating current (AC) drives. Mostly the motors are used in wide speed operation range. To control the motors, in the low speed region the motors are operated under pulse width modulation (PWM) mode and in the high speed region, they use square wave mode. In this paper, the current ripple characteristics of inverter-fed multiple three-phase AC motors that are operated under dual mode operation (PWM and square wave modes) are investigated. The optimal motor stator winding configuration will be optimized from the viewpoint of inverter input and motor current ripples. Six-phase motor is used as the representative of even-phase motors and nine-phase motor for odd-phase motors. It is found that nine-phase motor is better than six-phase motor if dual mode operation is desired. Experimental results are incorporated to support the analytical results.

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Vinay Kumar, C. H., G. Madhusudhana Rao, A. Raghu Ram, and Y. Prasanna Kumar. "Designing of Neuro-Fuzzy Controllers for Brushless DC Motor Drives Operating with Multiswitch Three-Phase Topology." Journal of Electrical and Computer Engineering 2022 (July 20, 2022): 1–12. http://dx.doi.org/10.1155/2022/7001448.

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Brushless DC motors are simple in construction, high efficiency, less noise, and high reliability, which are not replaceable motors in specific applications compared to other motor drives. It has a facility for its multivariable system, nonlinear control process, and powerful coupling system. This paper proposes to design the neuro-fuzzy controllers for its multiple converters switching to improve the power factor and minimize the BLDC motor switching losses. Compared with conventional controllers, this controller will develop the power factor and optimize the current ripples concerning time and torque. The working model of the BLDC motor may be presented here. A nonlinear load will be applied to the BLDC motor to determine the speed, current, and torque. The multiple switches designed with the proposed controllers are connected with the converter’s DC link to boost the voltage. The fuzzy logic controller is implanted to adjust the speed of the neural network and is also designed for the analysis of the stability of the system. The proposed controllers compare the rate at different speeds, torque, currents, and rotor angle positions. Finally, the proposed controller for multiple converter switches performs better than the conventional controllers.

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Shchur, Ihor, and Daniel Jancarczyk. "Electromagnetic Torque Ripple in Multiple Three-Phase Brushless DC Motors for Electric Vehicles." Electronics 10, no. 24 (December 13, 2021): 3097. http://dx.doi.org/10.3390/electronics10243097.

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This paper investigated an electromagnetic torque ripple level of BLDC drives with multiple three-phase (TP) permanent magnet (PM) motors for electric vehicles. For this purpose, mathematical models of PM machines of different armature winding sets-single (STP), dual (DTP), triple (TTP), and quadruple (QTP) ones of asymmetrical configuration and optimal angular displacement between winding sets were developed and corresponding computer models in the Matlab/Simulink environment were created. In conducted simulation, the influence of various factors on the electromagnetic torque ripple of the multiple-TP BLDC drives was investigated—degree of modularity, magnetic coupling between armature winding sets, and drive operation in open and closed-loop control systems. Studies have shown an increase of the electromagnetic torque ripple generated by one module in the multiple TP BLDC drives with magnetically coupled winding sets, due to additional current pulsations caused by magnetic interactions between the machine modules. However, the total electromagnetic torque ripples are much lower than in similar drives with magnetically insulated winding sets. Compared with the STP BLDC drive, the multiple TP BLDC drives with the same output parameters showed a reduction of the electromagnetic torque ripple by 27.6% for the DTP, 32.3% for the TTP, and 34.0% for the QTP BLDC drive.

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dos Santos, E. C., C. B. Jacobina, M. Beltrao de Rossiter Correa, and A. C. Oliveira. "Generalized Topologies of Multiple Single-Phase Motor Drives." IEEE Transactions on Energy Conversion 25, no. 1 (March 2010): 90–99. http://dx.doi.org/10.1109/tec.2009.2035107.

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Foti, Salvatore, Antonio Testa, Salvatore De Caro, Tommaso Scimone, Giacomo Scelba, and Giuseppe Scarcella. "Multi-Level Open End Windings Multi-Motor Drives." Energies 12, no. 5 (March 5, 2019): 861. http://dx.doi.org/10.3390/en12050861.

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A multi-level open-end winding converter topology for multiple-motor drives is presented featuring a main multi-level inverter processing the power delivered to the motors and an active filter based on an auxiliary two-level inverter. The main inverter operates at the fundamental frequency in order to achieve low switching power losses, while the active filter is Pulse Width Modulation (PWM) operated to suitably shape the motor currents. The proposed configuration features less phase current distortion than conventional multi-level inverters operating at the fundamental frequency, while achieving a higher efficiency compared to PWM multi-level inverters. Experimental results confirm the effectiveness of such a configuration on both multiple motors-single converter and multiple motor-multiple converter drives.

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Jedryczka, Cezary. "Comparative analysis of the three- and six-phase fractional slot concentrated winding permanent magnet machines." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 36, no. 3 (May 2, 2017): 811–23. http://dx.doi.org/10.1108/compel-09-2016-0431.

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Purpose The purpose of this paper is to analyse and compare the functional parameters of three- and six-phase permanent magnet synchronous motors (PMSM) with fractional-slot concentrated windings (FSCW). Design/methodology/approach The investigations are focused on the comparison of the distortions of back electromotive force (emf) and magnetomotive force (mmf) waveforms, as well as torque ripples, radial force spatial harmonics and motor performance studies. The finite element models of the test machine and a personally developed computer code have been used to calculate motor characteristics and analyse and synthesise multiphase winding layouts, respectively. Findings Compared with the traditional three-phase PMSM designs, the proposed six-phase machines are characterized by a significantly lower content of sub-harmonics in mmf waveform distribution. Moreover, the investigated six-phase machines exhibited a higher average value of electromagnetic torque, significantly lower torque ripples and a reduced value of low-order harmonics of the radial component of the electromagnetic force in the air-gap of the machine. Originality/value The analyses presented in this paper show that six-phase PMSM with FSCWs are advantageous to their counterpart three-phase machines. Specifically, they are more suited to working with multiple drives supplying a segmented winding system while simultaneously offering higher performance. This suitability to the use of a multi-drive supply for one motor offers flexibility and cost reduction while increasing the fault tolerance of a power train system.

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Chen, Chien-Hsu, Hsiu-Ming Wu, and Yue-Feng Lin. "Stator flux oriented multiple sliding-mode speed control design of induction motor drives." Advances in Mechanical Engineering 13, no. 5 (May 2021): 168781402110217. http://dx.doi.org/10.1177/16878140211021734.

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Due to superior robustness characteristic of sliding-mode control techniques, this study proposes a multiple sliding-mode control (MSMC) strategy based on the stator flux oriented vector scheme for speed control of three-phase AC induction motor (IM) drives in the presence of an external disturbance and uncertainties. At first, the dynamic model of a three-phase IM drive is transformed into two-axe orthogonal model (i.e. d and q axes) in the synchronously rotating frame so that vector control can be applied. Then, based on the stator flux oriented scheme (i.e. zero stator flux at q-axis and constant at d-axis), the proposed MSMC causes mechanical angular speed and stator current at q-axis reach toward predefined sliding surfaces. Moreover, stator flux and current at d-axis are respectively indirect and direct controlled such that tracking errors approach toward designed sliding surfaces. The closed-loop stability of the proposed MSMC is proved to possess uniformly ultimately bounded (UUB) performance by Lyapunov stability criteria. Furthermore, the simulation results reveal that the proposed MSMC strategy has a high level of robustness despite addition of an external load and random uncertainties on system parameters. In the meantime, the simulations for comparing the baseline controller (i.e. conventional PI control) are also conducted to verify the superiority of the proposed control scheme.

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Jedryczka, Cezary, Wojciech Szelag, and Zbigniew Jerry Piech. "Multiphase permanent magnet synchronous motors with fractional slot windings." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 35, no. 6 (November 7, 2016): 1937–48. http://dx.doi.org/10.1108/compel-03-2016-0120.

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Purpose The purpose of this paper is to investigate advantages of multiphase permanent magnet synchronous motors (PMSM) with fractional slot concentrated windings (FSCW). The investigation is based on comparative analysis and assessment of FSCW PMSM wound as 3, 6, 9 and 12 phase machines suited for low speed applications. Design/methodology/approach The investigations are focussed on distortions of back electromotive (emf) and magnetomotive force (mmf) with the torque ripples and motors’ performance taken into account. The finite element models with the aid of customized computer code have been adopted for motor winding design and back emf, mmf and motor performance analyses. Findings The novel multiphase winding layouts were found to offer lower content of sub-harmonics in the mmf waveforms compared with the traditional three-phase machine designs. Moreover, the investigated multiphase machines exhibited higher average value of the electromagnetic torque, while the multiphase PMSM machines with FSCW were further characterized by significantly lower torque pulsations. Originality/value The analyses presented in this paper demonstrate that PMSM with FSCW are advantageous to their counterpart three-phase machines. Specifically, they offer higher performance and are more suitable to work with multiple drives supplying segmented winding system. This ability of using multi-drive supply for one motor offers flexibility and cost reduction while increasing fault tolerant power train system.

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Han, Shouyi, Kaikai Diao, and Xiaodong Sun. "Overview of multi-phase switched reluctance motor drives for electric vehicles." Advances in Mechanical Engineering 13, no. 9 (September 2021): 168781402110451. http://dx.doi.org/10.1177/16878140211045195.

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Switched reluctance motor (SRM) provide a potential candidate for electric vehicle (EV) applications due to rigid structure, potentially low production cost, the absence of permanent magnets, excellent power-speed characteristics, and high reliability and robustness. This paper aims to review the current research on the design, winding topologies, converter topologies, and control methods of switched reluctance motors (SRMs). Torque ripple and vibration are the main drawbacks of SRMs, which constrain their application. To conquer these drawbacks, multi-phase SRMs (MSRMs), optimum structure, and control methods of SRMs have been utilized over the past decades. In this paper, MSRMs with multiple combinations of stator/rotor poles and winding arrangements are investigated. Different converter topologies are compared, and a full-bridge converter is suitable for SRMs used in EVs. Torque sharing function, direct torque control, and direct instantaneous torque control are the main control methods to reduce the torque ripple of SRMs, which have been comprehensively summarized.

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Rathore, Vishal, and Krishna Bihari Yadav. "Mathematical Modeling and Numerical Analysis of SPIM Drive Using Modified SVPWM Technique." ECTI Transactions on Electrical Engineering, Electronics, and Communications 20, no. 2 (June 21, 2022): 152–62. http://dx.doi.org/10.37936/ecti-eec.2022202.246877.

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This paper presents a modified space-vector pulse width modulation (SVPWM) technique for a five-level inverter that provides complete control over the multiple space-vector voltages of a six-phase inverter. This technique involves splitting six phases into two three-phase five-level inverters connected in parallel. A six-phase induction motor (SPIM) drive with a distributed neutral is considered as the load. This paper also presents a comparative analysis between the proposed and conventional SVPWM inverter-fed SPIM drives. To investigate the analytical developments and voltage limits, MATLAB/Simulink environment was used in this study. A prototype was developed in the laboratory for analyzing the harmonic components of the phase voltages and currents. The efficacy of the proposed technique was validated by means of comprehensive experiments, and the results discussed herein.

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Zdiri, Mohamed Ali, Badii Bouzidi, and Hsan Hadj Abdallah. "Performance investigation of an advanced diagnostic method for SSTPI-fed IM drives under single and multiple open IGBT faults." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 38, no. 2 (March 4, 2019): 616–41. http://dx.doi.org/10.1108/compel-04-2018-0181.

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Purpose This paper aims to analyze and investigate the performance of an improved fault detection and identification (FDI) method based on multiple criteria, applied to six-switch three-phase inverter (SSTPI)-fed induction motor (IM) drives under both single and multiple open insulated-gate bipolar transistors(IGBT) faults. Design/methodology/approach This paper proposes an advanced diagnostic method for both single and multiple open IGBT faults dedicated to SSTPI-fed IM drives considering five distinct faulty operating conditions as follows: a single IGBT open-circuit fault, a single-phase open-circuit fault, a non-crossed double fault in two different legs, a crossed double fault in two different legs and a three-IGBT open-circuit fault. This is achieved because of the introduction of a new diagnosis variable provided using the information of the slope of the current vector in (α-β) frame. The proposed FDI method is based on the synthesis and the analysis, under both healthy and faulty operations, of the behaviors of the introduced diagnosis variable, the three motor phase currents and their normalized average values. Doing so, the developed FDI method allows a best compromise of fast detection and precision localization of IGBT open-circuit fault of the inverter. Findings Simulation works, carried out considering the implementation of the direct rotor flux oriented control in an IM fed by the conventional SSTPI, have proved the high performance of the advanced FDI method in terms of fast fault detection associated with a high robustness against false alarms, against speed and load torque fast variations and against the oscillations of the DC-bus voltage in the case of both healthy and faulty operations. Research limitations/implications This work should be extended considering the validation of the obtained simulation results through experiments. Originality/value Different from other FDI methods, which suffer from a low diagnostic effectiveness for low load levels and false alarms during transient operation, this method offers the potentialities to overcome these drawbacks because of the introduction of the new diagnosis variable. This latter, combined with the information provided from the three motor phase currents and their normalized average values allow a more efficient detection and identification of IGBT open-circuit fault.

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Rossi, Claudio, Yasser Gritli, Alessio Pilati, Gabriele Rizzoli, Angelo Tani, and Domenico Casadei. "High Resistance Fault-Detection and Fault-Tolerance for Asymmetrical Six-Phase Surface-Mounted AC Permanent Magnet Synchronous Motor Drives." Energies 13, no. 12 (June 15, 2020): 3089. http://dx.doi.org/10.3390/en13123089.

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In the last decade, the interest for higher reliability in several industrial applications has boosted the research activities in multiphase permanent magnet synchronous motors realized by multiple three-phase winding sets. In this study, a mathematical model of an asymmetric surface-mounted six-phase permanent magnet synchronous motor under high resistance connections was developed. By exploiting the intrinsic properties of multiphase machines in terms of degrees of freedom, an improved field-oriented control scheme is presented that allows online fault detection and a quite undisturbed operating condition of the machine under high resistance connections. More specifically, the proposed strategies for online fault-detection and fault-tolerance are based on the use of multi-reference frame current regulators. The feasibility of the proposed approach was theoretically analyzed, then confirmed by numerical simulations. In order to validate experimentally the proposed strategies, the entire control system was implemented using TMS-320F2812 based platform.

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Ebrahim, Essamudin A., and Emad A. Sweelem. "Real-time Implementation of a Single Phase Asynchronous Motor Drive, Feeding within an Open Energy Source." WSEAS TRANSACTIONS ON POWER SYSTEMS 17 (June 25, 2022): 117–31. http://dx.doi.org/10.37394/232016.2022.17.13.

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A modified nanogrid (MnG) is a very small scalable grid with a low power single-input multi-output (SIMO) inverter. This inverter simultaneously produces both AC and DC currents, such as the switched boost inverter (SBI) and the z-source inverter. These inverters are suitable for low-power loads such as home appliances that use fractional horse-power motors as single-phase asynchronous drives. Thus, this article proposes a single-phase induction motor powered from a modified nanogrid that involves multiple types of inverters such as a SBI and a ZS inverter. The modified nanogrid is mainly dependent on photovoltaic (PV) as a renewable resource. Thus, this manuscript involves a full design for this proposed grid with its maximum power point tracking (MPPT) and the mathematical models for motor drive with both a SBI and a ZSI. Time-varying speed trajectories are proposed to test the robustness of the proposed drives relative to the fluctuation of PV-parameters like its irradiance. Test results are obtained using the Matlab/ Simulink software package and a comparison with the traditional sinusoidal pulse width modulation (SPWM) inverter as a single-input single-output inverter (SISOI). The results indicate that the proposed single-input multi-output inverters are suitable for driving these motors through start-up and operation, although the DC-link voltage is minimized. Furthermore, the proposed system is experimentally implemented with OPAL RT-4510v real-time hardware in the loop (HIL), rapid control prototyping, and OP-8660 HIL controller and data acquisition platform.

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Asghar, Furqan, Muhammad Talha, and Sung Ho Kim. "Neural Network Based Fault Detection and Diagnosis System for Three-Phase Inverter in Variable Speed Drive with Induction Motor." Journal of Control Science and Engineering 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/1286318.

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Recently, electrical drives generally associate inverter and induction machine. Therefore, inverter must be taken into consideration along with induction motor in order to provide a relevant and efficient diagnosis of these systems. Various faults in inverter may influence the system operation by unexpected maintenance, which increases the cost factor and reduces overall efficiency. In this paper, fault detection and diagnosis based on features extraction and neural network technique for three-phase inverter is presented. Basic purpose of this fault detection and diagnosis system is to detect single or multiple faults efficiently. Several features are extracted from the Clarke transformed output current and used in neural network as input for fault detection and diagnosis. Hence, some simulation study as well as hardware implementation and experimentation is carried out to verify the feasibility of the proposed scheme. Results show that the designed system not only detects faults easily, but also can effectively differentiate between multiple faults. These results prove the credibility and show the satisfactory performance of designed system. Results prove the supremacy of designed system over previous feature extraction fault systems as it can detect and diagnose faults in a single cycle as compared to previous multicycles detection with high accuracy.

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Mesai-Ahmed, Hamza, Imed Jlassi, Antonio J. Marques Cardoso, and Abderrahim Bentaallah. "Multiple Open-Circuit Faults Diagnosis in Six-Phase Induction Motor Drives Using Stator Current Analysis." IEEE Transactions on Power Electronics 37, no. 6 (June 2022): 7275–85. http://dx.doi.org/10.1109/tpel.2021.3132236.

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Dawood, Suroor, Samar Majeed, and Habeeb Nekad. "PID Controller Based Multiple (Master/Slaves) Permanent Magnet Synchronous Motors Speed Control." Iraqi Journal for Electrical and Electronic Engineering 11, no. 2 (December 1, 2011): 183–92. http://dx.doi.org/10.37917/ijeee.11.2.5.

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This paper suggests the use of the traditional proportional-integral-derivative (PID) controller to control the speed of multi Permanent Magnet Synchronous Motors (PMSMs). The PMSMs are commonly used in industrial applications due to their high steady state torque, high power, high efficiency, low inertia and simple control of their drives compared to the other motors drives. In the present study a mathematical model of three phase four poles PMSM is given and simulated. The closed loop speed control for this type of motors with voltage source inverter and abc to dq blocks are designed. The multi (Master/Slaves approach) method is proposed for PMSMs. Mathwork's Matlab/Simulink software package is selected to implement this model. The simulation results have illustrated that this control method can control the multi PMSMs successfully and give better performance.

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Lipcak, Ondrej, Pavel Karlovsky, Pavel Kobrle, and Jan Bauer. "Current Ripple Reduction of Predictive Torque-Controlled Induction Motor Drive Using Delta-Star Switchover." Applied Sciences 11, no. 6 (March 23, 2021): 2863. http://dx.doi.org/10.3390/app11062863.

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The current and torque ripple of inverter-fed induction motor drives is an inherent problem of control strategies working with switching frequencies in the range of multiple kilohertz, such as direct torque and, more recently, predictive torque control. If the drive operates in a wide-speed and wide-torque range and is equipped with a machine with an accessible terminal block whose winding is nominally connected in delta, then the current and torque ripple can be reduced by utilizing the delta-star winding changeover technique. When the winding configuration is switched from delta to star, the instantaneous motor phase voltage peak is lowered, and its total harmonic distortion is reduced. However, the control strategy must be adjusted according to the actual winding topology, mainly due to the difference in the coordinate transformations of the measured currents and the difference between the phase voltage vectors obtained from the inverter. This paper proposes a predictive torque control of an induction motor drive with a switchable delta-star winding configuration. The paper is supported by theoretical background, and the key idea is verified by simulations in MATLAB/Simulink and experiments conducted on a dSPACE-controlled 5.5-kW laboratory drive. The simulations validated the presented equations and show the effects of not respecting the actual winding topology. The experiments mainly focused on analyzing the total harmonic distortion of the currents and consumed electrical power in multiple operating points.

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Osawa, Fumiaki. "Utilization of Reluctance Electromagnetic Force of Inner-Mover-Type Rotary-Linear Motor." International Journal of Automation Technology 14, no. 1 (January 5, 2020): 129–34. http://dx.doi.org/10.20965/ijat.2020.p0129.

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A multiple-degree-of-freedom (multi-DOF) motor can constitute small-sized and lightweight systems capable of performing complicated motions. Furthermore, the prospects for applications to industrial instruments via a direct drive are promising. This study aimed to develop practical multi-DOF motors capable of performing high-power rotary and linear motions using conventional three-phase inverters. A motor that performs rotary and linear motions is proposed. First, a method is presented for installing a salient pole on a needle with magnets. The method facilitates the use of soft magnetic materials with low eddy-current loss as iron cores. This study demonstrated the effectiveness of the salient pole for increasing the electromagnetic force. The model is used to explain the interactive magnetic interference generated by the armature currents for rotational and translation motions.

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Xu, Zhengwang, Yuchun Yi, Yutong Sun, Jiarui Zhang, Cheng Chen, Jiaqi Yu, Wei Mei, and Xiangkui Wan. "A Triple-cycloconverter-based Soft-start Control Strategy Zh." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 3 (May 18, 2020): 378–83. http://dx.doi.org/10.2174/2352096512666181127150931.

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Objective: The use of multiple-stage cycloconverters is suitable for variable-frequency speed control of high-voltage, large-capacity motors, for which it is sometimes necessary to establish separate controls for variable-frequency operation and the start-up phase. This approach effectively limits the starting current of the large-capacity motor by switching the phase relationship of the triple circuit’s output voltages to control the overall output voltage. Methods: We analyze a triple circuit using voltage vector analysis and simulation analysis with MATLAB modeling. Results: We find that our triple soft-start control strategy can be applied to large-capacity motors, as this strategy results in a pure sine wave output voltage and current, and maintains balance in the three-phase voltage during startup. Conclusion: In order to further decrease these types of effects, we will conduct more research on a cycloconverter that has six stages of the converter circuit, rather than the three stages mentioned before. Furthermore, the sextuple cycloconverter, which can be used to practically drive high capacity pumps or fans, will be developed by combining the “phase hopping” method and the soft-start method mentioned in this paper.

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Chen, Xiaozhe, and Lingxuan Li. "Selected synchronous state of the vibration system driven by three homodromy eccentric rotors." Journal of Low Frequency Noise, Vibration and Active Control 39, no. 2 (May 6, 2019): 352–67. http://dx.doi.org/10.1177/1461348419844646.

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In order to verify that the vibration system driven by multi-eccentric rotors has multiple synchronous states, a model of three eccentric rotors horizontal installation of plane motion is established to study the coupling dynamic characteristics. Based on the average method of modified small parameters, the frequency capture equation is constructed to obtain the conditions of synchronous motion and vibration synchronization transmission. According to the synchronous conditions, the stability state of achieving synchronous motion is converted into the solution of balance equation of the synchronous torque. There are multiple solutions to the torque equation because of the non-linear characteristics of the vibration system driven by multi-eccentric rotors. Then the stability condition is used to estimate which of the solutions is stable. After substituting the parameters of the experimental machine into the above method, the curves of the phase difference and its stability coefficients of three eccentric rotors system are obtained numerically. Two experiments show that the selected synchronous state depends on the initial condition and external disturbance, and if the vibration synchronization transmission conditions are satisfied, three eccentric rotors can not only achieve vibration synchronization transmission of one motor with switching off the power but also that of two motors with switching off the power.

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Simard, Stéphane, Rachid Beguenane, and Jean-Gabriel Mailloux. "Performance Evaluation of Rotor Flux-Oriented Control on FPGA for Advanced AC Drives." Journal of Robotics and Mechatronics 21, no. 1 (February 20, 2009): 113–20. http://dx.doi.org/10.20965/jrm.2009.p0113.

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Hardware implementation of mechatronic systems become more and more feasible with the constant development of simulation software tools and more performing computer hardware. The work presented here explains the use of Matlab/Simulink and Xilinx System Generator tools and FPGA hardware in designing, simulating and evaluating control laws for mechatronic systems. Particularly, this paper reports improved results for FPGA implementation and hardware/software co-simulation of a rotor flux-oriented control loop for three-phase AC induction motors. On FPGA, the computation time achieved for the complete control loop proves to be short enough that many enhancements proposed in theory become possible, including the use of neural networks, matrix calculations, on-line monitoring, advanced control of PWM inverter-fed AC machines, and multiple hybrid controls, without affecting system performance or sacrificing precision.

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Mohan, V., N. Stalin, and S. Jeevananthan. "A Tactical Chaos based PWM Technique for Distortion Restraint and Power Spectrum Shaping in Induction Motor Drives." International Journal of Power Electronics and Drive Systems (IJPEDS) 5, no. 3 (February 1, 2015): 383. http://dx.doi.org/10.11591/ijpeds.v5.i3.pp383-392.

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The pulse width modulated voltage source inverters (PWM-VSI) dominate in the modern industrial environment. The conventional PWM methods are designed to have higher fundamental voltage, easy filtering and reduced total harmonic distortion (THD). There are number of clustered harmonics around the multiples of switching frequency in the output of conventional sinusoidal pulse width modulation (SPWM) and space vector pulse width modulation (SVPWM) inverters. This is due to their fixed switching frequency while the variable switching frequency makes the filtering very complex. Random carrier PWM (RCPWM) methods are the host of PWM methods, which use randomized carrier frequency and result in a harmonic profile with well distributed harmonic power (no harmonic possesses significant magnitude and hence no filtering is required). This paper proposes a chaos-based PWM (CPWM) strategy, which utilizes a chaotically changing switching frequency to spread the harmonics continuously to a wideband and to reduce the peak harmonics to a great extent. This can be an effective way to suppress the current harmonics and torque ripple in induction motor drives. The proposed CPWM scheme is simulated using MATLAB / SIMULINK software and implemented in three phase voltage source inverter (VSI) using field programmable gate array (FPGA).

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Sung, Guo-Ming, Li-Fen Tung, Chong-Cheng Huang, and Hong-Yuan Huang. "Modified Predictive Direct Torque Control ASIC with Multistage Hysteresis and Fuzzy Controller for a Three-Phase Induction Motor Drive." Electronics 11, no. 11 (June 6, 2022): 1802. http://dx.doi.org/10.3390/electronics11111802.

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This paper proposes a modified predictive direct torque control (MPDTC) application-specific integrated circuit (ASIC) with multistage hysteresis and fuzzy controller to address the ripple problem of hysteresis controllers and to have a low power consumption chip. The proposed MPDTC ASIC calculates the stator’s magnetic flux and torque by detecting three-phase currents, three-phase voltages, and the rotor speed. Moreover, it eliminates large ripples in the torque and flux by passing through the modified discrete multiple-voltage vector (MDMVV), and four voltage vectors were obtained on the basis of the calculated flux and torque in a cycle. In addition, the speed error was converted into a torque command by using the fuzzy PID controller, and rounding-off calculation was employed to decrease the calculation error of the composite flux. The proposed MDMVV switching table provides 294 combined voltage vectors to the following inverter. The proposed MPDTC scheme generates four voltage vectors in a cycle that can quickly achieve DTC function. The Verilog hardware description language (HDL) was used to implement the hardware architecture, and an ASIC was fabricated with a TSMC 0.18 μm 1P6M CMOS process by using a cell-based design method. Measurement results revealed that the proposed MPDTC ASIC performed with operating frequency, sampling rate, and dead time of 10 MHz, 100 kS/s, and 100 ns, respectively, at a supply voltage of 1.8 V. The power consumption and chip area of the circuit were 2.457 mW and 1.193 mm × 1.190 mm, respectively. The proposed MPDTC ASIC occupied a smaller chip area and exhibited a lower power consumption than the conventional DTC system did in the adopted FPGA development board. The robustness and convenience of the proposed MPDTC ASIC are especially advantageous.

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Kadri, Farid, and Mohamed A. Hamida. "Neural Direct Torque Control for Induction Motor under Voltage Source Inverter Open Switch Fault." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 4 (July 5, 2020): 571–79. http://dx.doi.org/10.2174/1874476105666190830103616.

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Background: The study of induction motor behavior during abnormal conditions due to the presence of faults and the possibility to diagnose these abnormal conditions has been a challenging topic for many electrical machine researchers. Objective: Direct Torque Control (DTC) is applied to the control of an induction motor in healthy and an open circuit fault in the PWM three phase voltage fed inverter. Neural DTC is developed and used to improve the dynamic behavior of the drive system under faulty switch occurrence. Methods: The validity of the proposed control scheme is tested under normal conditions and switching fail in the Voltage Source Inverter (VSI) caused by an open circuit. Through a simulation testing of an induction motor drive system at different speed references, a comparison between basic DTC and Neural DTC is performed. Results: Simulated results on 1.5-kW induction motor drive show the performance of the proposed control in normal and faulty cases. The stator current, flux, torque, and speed at different references are determined and compared in the above techniques using MATLAB-SIMULINK. Conclusion: A Neural Network (NN) DTC control system under an open switch fault is proposed without the need for classical switching table. The use of hybrid intelligent techniques aims to improve the DTC performances in case of multiple faults occurrence.

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Smith, Jeffrey C., Ana P. L. Abdala, Ilya A. Rybak, and Julian F. R. Paton. "Structural and functional architecture of respiratory networks in the mammalian brainstem." Philosophical Transactions of the Royal Society B: Biological Sciences 364, no. 1529 (September 12, 2009): 2577–87. http://dx.doi.org/10.1098/rstb.2009.0081.

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Neural circuits controlling breathing in mammals are organized within serially arrayed and functionally interacting brainstem compartments extending from the pons to the lower medulla. The core circuit components that constitute the neural machinery for generating respiratory rhythm and shaping inspiratory and expiratory motor patterns are distributed among three adjacent structural compartments in the ventrolateral medulla: the Bötzinger complex (BötC), pre-Bötzinger complex (pre-BötC) and rostral ventral respiratory group (rVRG). The respiratory rhythm and inspiratory–expiratory patterns emerge from dynamic interactions between: (i) excitatory neuron populations in the pre-BötC and rVRG active during inspiration that form inspiratory motor output; (ii) inhibitory neuron populations in the pre-BötC that provide inspiratory inhibition within the network; and (iii) inhibitory populations in the BötC active during expiration that generate expiratory inhibition. Network interactions within these compartments along with intrinsic rhythmogenic properties of pre-BötC neurons form a hierarchy of multiple oscillatory mechanisms. The functional expression of these mechanisms is controlled by multiple drives from more rostral brainstem components, including the retrotrapezoid nucleus and pons, which regulate the dynamic behaviour of the core circuitry. The emerging view is that the brainstem respiratory network has rhythmogenic capabilities at multiple hierarchical levels, which allows flexible, state-dependent expression of different rhythmogenic mechanisms under different physiological and metabolic conditions and enables a wide repertoire of respiratory behaviours.

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Hasan Ebrahimi, Saeed, Martin Choux, and Van Khang Huynh. "Real-Time Detection of Incipient Inter-Turn Short Circuit and Sensor Faults in Permanent Magnet Synchronous Motor Drives Based on Generalized Likelihood Ratio Test and Structural Analysis." Sensors 22, no. 9 (April 29, 2022): 3407. http://dx.doi.org/10.3390/s22093407.

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This paper presents a robust model-based technique to detect multiple faults in permanent magnet synchronous motors (PMSMs), namely inter-turn short circuit (ITSC) and encoder faults. The proposed model is based on a structural analysis, which uses the dynamic mathematical model of a PMSM in an abc frame to evaluate the system’s structural model in matrix form. The just-determined and over-determined parts of the system are separated by a Dulmage–Mendelsohn decomposition tool. Subsequently, the analytical redundant relations obtained using the over-determined part of the system are used to form smaller redundant testable sub-models based on the number of defined fault terms. Furthermore, four structured residuals are designed based on the acquired redundant sub-models to detect measurement faults in the encoder and ITSC faults, which are applied in different levels of each phase winding. The effectiveness of the proposed detection method is validated by an in-house test setup of an inverter-fed PMSM, where ITSC and encoder faults are applied to the system in different time intervals using controllable relays. Finally, a statistical detector, namely a generalized likelihood ratio test algorithm, is implemented in the decision-making diagnostic system resulting in the ability to detect ITSC faults as small as one single short-circuited turn out of 102, i.e., when less than 1% of the PMSM phase winding is short-circuited.

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Y. Yousef, Ayman, and M. H. Mostafa. "Simulation and Implementation of Multiple Unipolar Stepper Motor Position Control in the Three Stepping Modes using Microcontroller." Indonesian Journal of Electrical Engineering and Computer Science 4, no. 1 (November 4, 2016): 29. http://dx.doi.org/10.11591/ijeecs.v4.i1.pp29-40.

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<p>This paper presents a multiple unipolar stepper motor position control system using microcontroller (MCU) in anticlockwise and clockwise directions. The open loop controller of the implemented position control system for the three stepping modes of operation has been designed and developed with three stepper motors and without position feedback. The MCU is programmed using flowcode software package to generate the pulse signals with the desired stepping sequences and step angles. These pulse signals are necessary to drive the three stepper motors in the three drive modes (wave-step, full-step, and Half-step) according to the control algorithm. Three devices of 8 Channel Darlington Driver (chip ULN2803) are used to drive the three stepper motors and provide them with the sufficient current. The position control system has been simulated using proteus design suite software package and the controller has been implemented using low cost PIC16F877A (MCU). A reliable and accurate position control of the stepper motor is achieved by this position control system. </p>

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Wenjuan, Li, Liu Haiqiang, and Zhang Bo. "Modeling and Simulation for Multiple Damage Progression of Tank-to- Engine Fuel Feed System." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 5 (September 22, 2020): 751–57. http://dx.doi.org/10.2174/2352096512666190920094432.

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Background: A centrifugal vane pump driven by a three-phase AC motor is a key component for modern equipment. Therefore, its condition directly affects the operating and safety performance of the system. Modeling and simulation are effective methods for the system analysis. Methods: A mathematical model of a Tank-to-Engine Fuel Feed System (T-EFFS) is designed based on its phased-mission behavior and structure redundancy. Both of the damage modes that arise frequently in a given type of system are tracked: the fuel feed pump seal damage due to fatigue and the vane damage due to corrosion. Then, a multiple degradation T-EFFS model is established to simulate the fuel pressure at the system outlet under different damage modes. The morphological spectrum decrement index is used to describe the damage of the system. Results: The results show that the T-EFFS model can describe the phased-mission behavior of the system and meet the requirement of the fuel flow rate for the entire mission profile. Then, the decrease in the fuel pressure of the T-EFFS with the cumulative effects of vane damage and crack growth under different behavior modes is simulated along its life span. Conclusion: This work aims to provide a model and data support for a subsequent investigation. The results can be used to fit the health background curve of the system, predict the performance degradation trend of the system at given life points, and further evaluate its remaining service life.

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Mullins, Eric S., Kathryn E. Talmage, Keith W. Kombrinck, Whitney M. Miller, Joseph S. Palumbo, and Jay L. Degen. "Factor XIII Deficiency Improves Motor Function in Mice Challenged with Experimental Autoimmune Encephalomyelitis, An Established Model of Multiple Sclerosis." Blood 118, no. 21 (November 18, 2011): 858. http://dx.doi.org/10.1182/blood.v118.21.858.858.

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Abstract Abstract 858 Multiple sclerosis (MS) is an inflammatory disease characterized by autoimmune demyelination of neurons and axonal damage within the central nervous system, leading to relapsing/remitting neurological deficits, including sensory and motor deficits. MS plaques are characterized by blood-brain barrier disruption leading to perivascular deposition of fibrin that correlates with areas of microglia activation and myelin damage. Consistent with multiple studies showing that hemostatic factors can serve as important modulators of the inflammatory response in vivo, fibrin(ogen) has been identified as a novel regulator of microglial activation and differentiation. Furthermore, fibrin(ogen) has been found, via the αMβ2 binding motif on the γ chain, to play a role in microglial activation in experimental autoimmune encephalomyelitis (EAE), a murine model of MS. However, previous work by our lab, as well as others, suggests that thrombin-mediated proteolysis plays a greater role in driving neuroinflammatory disease than by merely supporting fibrin formation. Our working hypothesis is that thrombin-mediated proteolysis drives autoimmune neuroinflammation through both fibrin(ogen)-dependent and fibrin(ogen)-independent pathways. To test this hypothesis, we have initiated studies of EAE in mice lacking selected thrombin substrates, including protease activated receptors (PARs) and factor XIII (fXIII). Clinical evaluation of loss of motor function in EAE-challenged cohorts of PAR-1-deficient, PAR-4-deficient and WT control mice revealed a similar outcome in all three cohorts, suggesting PARs may have either a modest or a secondary role in EAE-induced neuroinflammatory disease. However, mice with a constitutive deficiency of another thrombin substrate, the fibrin cross-linking transglutaminase fXIII, were found to have a significant amelioration in motor function loss when challenged with EAE. To further explore this phenotype, we have utilized cystamine, a transglutaminase inhibitor, as a pharmacologic complement to the fXIII knockout mice. Mice with cystamine placed in their drinking water during the EAE challenge period also experienced significantly less disease than control mice that did not receive cystamine. This data suggests that (pro)thrombin contributes neuroinflammatory disease by both supporting local fibrinogen polymerization and by activation of fXIII leading to fibrin stabilization. Furthermore, this line of research suggests that more detailed studies of fXIII may reveal novel strategies for limiting or reversing the devastating pathologies associated with multiple sclerosis. Disclosures: Mullins: Baxter: Consultancy. Palumbo:Novo Nordisk Corporation: Research Funding.

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Tarateeraseth, Vuttipon, and Warathep Padungtin. "Three-Phase EMI Filter Designs for Three-Phase Induction Motor Drives." International Review of Electrical Engineering (IREE) 14, no. 2 (April 30, 2019): 86. http://dx.doi.org/10.15866/iree.v14i2.16237.

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Kiriencko, Elena. "ANALYSIS OF SOME PROBLEMS AND REQUIREMENTS FOR NEW SOUND RESONANT UNITS FOR TRENCHLESS LAYING OF PIPELINES BY VIBRATION METHODS." Vibrations in engineering and technology, no. 1(96) (August 27, 2020): 81–87. http://dx.doi.org/10.37128/2306-8744-2020-1-9.

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This article continues the series of works, which are devoted to studies of vibration methods of pipe laying, with purpose of increasing the productivity through higher speed of driving, penetration capacity, possibility to overcome the great frontal resistance of soil at acceptable energy consumption. The studies have been fulfilled on the base of wave theory of stress propagation in going downward pipe and in soil. This article analyzes some of the challenges facing designers of sound-resonance units for vibro-puncture and vibro-compression, operating in a wide range of laid pipes and in different soil conditions while constructing underground passages not only under motor roads, highways and railway embankments but also under bottom of various water basins which can be carried out by trenchless methods. There has been conducted the analysis of the high frequency vibrators existing abroad, which are suitable for work in sound resonance modes, in particular, quarter wave and unpaired multiple to it “three-quarter wave” and “five-quarter wave” modes. Existing drives, able to provide the possibility for high consumed power achievement, have been analyzed, which may be necessary while constructing long lengths under water pathways (up to 300 m) with the use of sound-resonance units. Some examples of necessary technical characteristics for new sound-resonant installations for vibro-puncture and vibro-compression are given; basic requirements for these installations are formulated.

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Revol, Bertrand, James Roudet, Jean-Luc Schanen, and Philippe Loizelet. "EMI Study of Three-Phase Inverter-Fed Motor Drives." IEEE Transactions on Industry Applications 47, no. 1 (January 2011): 223–31. http://dx.doi.org/10.1109/tia.2010.2091193.

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Chao, K. H., and C. M. Liaw. "Three-phase soft-switching inverter for induction motor drives." IEE Proceedings - Electric Power Applications 148, no. 1 (2001): 8. http://dx.doi.org/10.1049/ip-epa:20010123.

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Radwa, T. S., S. A. Mahmoud, and Z. M. El-Barbary. "SINGLE-PHASE TO THREE- PHASE CONVETER FOR LOW COST AC MOTOR DRIVES." ERJ. Engineering Research Journal 24, no. 4 (October 1, 2001): 143–58. http://dx.doi.org/10.21608/erjm.2001.71138.

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Bojoi, R., F. Farina, G. Griva, F. Profumo, and A. Tenconi. "Direct Torque Control for Dual Three-Phase Induction Motor Drives." IEEE Transactions on Industry Applications 41, no. 6 (November 2005): 1627–36. http://dx.doi.org/10.1109/tia.2005.858281.

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Nouira El Badsi, Imen, Bassem El Badsi, and Ahmed Masmoudi. "DTC strategies for three-switch three-phase inverter-fed induction motor drives." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 6 (November 5, 2018): 2176–94. http://dx.doi.org/10.1108/compel-01-2018-0009.

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PurposeThis paper aims to investigate the performance of two novel direct torque control (DTC) schemes dedicated to three-switch three-phase inverter (B3-VSI), also called delta inverter, fed induction motor (IM) drives.Design/methodology/approachThe principle of operation of the B3-VSI-fed IM drive is recalled in a first step. Then, the basis of both proposed DTC strategies is presented. The first DTC scheme considers a subdivision of the stationary plane into three sectors and the application of the intrinsic as well as virtual voltage vectors to achieve the control combinations. While, the second DTC scheme considers a subdivision of the stationary plane into six sectors and a limitation of the voltage vectors incorporated in the look-up table to the three intrinsic ones.FindingsSimulation and experimental results have revealed that, under steady-state operation and transient conditions, the harmonic content of the IM stator phase currents is lower in the case of the DTC2 strategy, resulting in a lower ripple of electromagnetic torque. Furthermore, it has led to a quasi-circular shape of the locus described by the stator flux vector in the stationary plane.Research limitations/implicationsThis work should be extended to the synthesis and performance analysis of a new DTC strategy for B3-VSI-fed IM drive, which emulates the operation of the conventional six-switch three-phase inverter-fed IM drive.Originality/valueThe limitation associated with the reduced number of the intrinsic voltage vectors generated by the B3-VSI has been eradicated, thanks to the suitable synthesis of the look-up table incorporated in the DTC scheme.

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37

Asad, Bilal, and K. M. Hasan. "Laguerre Function’s Based Model Predictive Control of Three Phase Induction Motor." Applied Mechanics and Materials 229-231 (November 2012): 961–67. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.961.

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Electrical drives play a vital role in industrial and domestic applications, so these drives must be more efficient and easy to control. Conventional control methods are well established and nearly fulfill all demands of modern electrical drives but there is still a need to improve these controllers. In this paper it is proposed that the conventional field oriented controllers can be replaced by Model Predictive Controllers (MPC) which are currently being used as process controllers. These MPC controllers are preferred over conventional field oriented controllers because they can predict future behavior of system and according to that predicted value they can adjust their present input in order to minimize the error signal. The major drawback of conventional MPC is that a lot of mathematical iterations are required to predict the future behavior of system so Laguerre function’s based MPC model is used to reduce the mathematical effort and results are validated for a three phase induction motor.

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AL-Rawi, Muhanned, and Muaayed AL-Rawi. "On the Simulation of Three Phase Induction Machine." Technological Engineering 16, no. 1 (October 1, 2019): 63–65. http://dx.doi.org/10.1515/teen-2019-0009.

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Abstract Three phase induction motor is the most popular type AC motor. it is very commonly used for industrial drives. It is cheap, robust, efficient and reliable. It has good speed regulation and high starting torque. It requires little maintenance. It has a reasonable over load capacity. This paper deals with the simulation of three phase induction machine using MATLAB Simulink. The results are obtained for generating mode and motoring mode.

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ŞİT, Sami, Rıza ÖZÇALIK, Erdal KILIÇ, and Şaban YILMAZ. "INVESTIGATION OF SPEED CONTROL METHOD IN THREE-PHASE INDUCTION MOTOR DRIVES." INTERNATIONAL REFEREED JOURNAL OF ENGINEERING AND SCIENCES, no. 5 (December 30, 2015): 125. http://dx.doi.org/10.17366/uhmfd.2015514479.

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Selvaraj, D. Edison, C. Ruban Karthik, R. Arun, S. Geethadevi, and J. Ganesan. "Energy Efficient Three Phase Squirrel Cage Induction Motor fed AC Drives." International Journal of Science and Engineering Applications 3, no. 2 (March 20, 2014): 18–21. http://dx.doi.org/10.7753/ijsea0302.1003.

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Durán, M. J., M. R. Arahal, F. J. Barrero, S. L. Toral, and R. Gregor. "Restrained search predictive control of dual three-phase induction motor drives." Renewable Energy and Power Quality Journal 1, no. 07 (April 2009): 96–101. http://dx.doi.org/10.24084/repqj07.256.

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Miyazaki, Hideki, Kenichi Onda, Mutsuhiro Mori, Tsutomu Yatsuo, Akihiko Kanouda, Tomoyuki Tanaka, Naoki Sakurai, and Yasuo Matsuda. "250V 1A three-phase monolithic inverter IC for brushless motor drives." IEEJ Transactions on Industry Applications 111, no. 2 (1991): 117–24. http://dx.doi.org/10.1541/ieejias.111.117.

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T S, Sivarani, and Joseph Jawhar S. "PSO Based Optimal Random PWM for Three Phase Induction Motor Drives." International Journal of Electrical and Electronics Engineering 3, no. 2 (February 25, 2016): 15–19. http://dx.doi.org/10.14445/23488379/ijeee-v3i2p104.

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Mendes, Andr M. S., and A. J. Marques Cardoso. "Fault-Tolerant Operating Strategies Applied to Three-Phase Induction-Motor Drives." IEEE Transactions on Industrial Electronics 53, no. 6 (December 2006): 1807–17. http://dx.doi.org/10.1109/tie.2006.885137.

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Pairo, Hamidreza, Mohammad Hosein Khanzade, and Abbas Shoulaie. "Maximum efficiency control of six- and three-phase two-motor drives." Journal of Engineering 2017, no. 7 (July 1, 2017): 410–17. http://dx.doi.org/10.1049/joe.2017.0262.

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Bojoi, R., M. Lazzari, F. Profumo, and A. Tenconi. "Digital field-oriented control for dual three-phase induction motor drives." IEEE Transactions on Industry Applications 39, no. 3 (May 2003): 752–60. http://dx.doi.org/10.1109/tia.2003.811790.

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Janiga, Srinivasrao, Sarfaraz Nawaz Syed, Suresh Kumar Tummala, and Srinivasa Varma Pinni. "Speed Control of an Induction Motor Fed by an Inverter Using dSPACE Controller." E3S Web of Conferences 87 (2019): 01002. http://dx.doi.org/10.1051/e3sconf/20198701002.

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This paper presents the design and implementation of Inverter system for driving three phase Induction motor using DSPACE DS1104 controller with the controlling objective space vector pulse width modulation (SVPWM) technique. AC motor drives are commonly used over DC motor drives because of their more advantages. Induction motor is the most commonly used AC motor drive for various industrial and domestic applications. The project will be commenced by a basic understanding of SVPWM inverter, components used in the design and study the mathematical equations of the Induction motor. The performance of SVPWM based Induction motor (IM) in open loop is presented with simulation. Here the hardware implementation of the three phase inverter which is fed to a three phase induction motor driven by DSPACE CP1104 is been implemented.

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Aziri, Hasif, Fizatul Aini Patakor, Marizan Sulaiman, and Zulhisyam Salleh. "Comparison Performances of Indirect Field Oriented Control for Three-Phase Induction Motor Drives." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 4 (December 1, 2017): 1682. http://dx.doi.org/10.11591/ijpeds.v8.i4.pp1682-1692.

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<span>This paper presents the comparative performances of Indirect Field Oriented Control (IFOC) for the three-phase induction motor. Recently, the interest of widely used the induction motor at industries because of reliability, ruggedness and almost free in maintenance. Thus, the IFOC scheme is employed to control the speed of induction motor. Therefore, P and PI controllers based on IFOC approach are analyzed at differences speed commands with no load condition. On the other hand, the PI controller is tuned based on Ziegler-Nichols method by using PSIM software which is user-friendly for simulations, design and analysis of motor drive, control loop and the power converter in power electronics studies. Subsequently, the simulated of P controller results are compared with the simulated of PI controller results at difference speed commands with no load condition. Finally, the simulated results of speed controllers are compared with the experimental results in order to explore the performances of speed responses by using IFOC scheme for three-phase induction motor drives.</span>

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Ben Rhouma, Asma, and Ahmed Masmoudi. "A DTC strategy dedicated to three‐switch three‐phase inverter‐fed induction motor drives." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 27, no. 5 (September 12, 2008): 1098–109. http://dx.doi.org/10.1108/03321640810890799.

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Alkorta, Patxi, Oscar Barambones, José Cortajarena, Itziar Martija, and Fco Maseda. "Effective Position Control for a Three-Phase Motor." Electronics 9, no. 2 (February 1, 2020): 241. http://dx.doi.org/10.3390/electronics9020241.

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This document presents an efficient proportional derivative (PD) position controller for three-phase motor drives. The regulator has been designed in frequency domain, employing the direct–quadrature (d–q) synchronous rotating reference frame and the indirect vector control. The presented position regulator is easy to tune and incorporates a feed forward (FF) term to compensate effectively the effect of the load disturbance. This position controller has been validated experimentally by using two industrial three-phase motors: an induction motor (IM) of 7.5 kW and a permanent magnet synchronous motor (PMSM) of 3.83 kW. The inner proportional integral (PI) current loops of both machines have also been designed in the frequency domain. Each machine has connected in its shaft an incremental encoder of 4096 pulses per revolution, to measure the position. Several simulations and experimental tests have been carried out with both motors, in favorable conditions and also with various types of adversities (parametric uncertainties, unknown load disturbance and measurement noise in the position and current loops), getting very good results and suggesting that this controller could be used in the research area and also in the industry.

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Journal articles on the topic 'Multiple three-phase motor drives'

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