Статті в журналах: "Induction converter"

1

Leila, Merabet, Mekki Mounira, Ourici Amel, and Saad Salah. "Modelling and control of wind turbine doubly fed induction generator with MATLAB simulink." Global Journal of Computer Sciences: Theory and Research 7, no. 2 (December 1, 2017): 77–91. http://dx.doi.org/10.18844/gjcs.v7i2.2714.

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This paper describes the modelling and control system of a wind turbine, using a doubly fed induction generator. This configuration makes the wind turbine suitable for variable speed wind energy application. The power captured by the wind turbine is converted into electrical power by the induction generator, and it is transmitted to the grid by the stator and the rotor windings. The control system generates voltage command signals for rotor converter and grid converter, respectively, in order to control the power of the wind turbine. Reactive power exchanged with the network through the converters is set to 0 VAr. The control strategy has been developed using MATLAB/Simulink. The simulation results are presented and discussed in the conclusions. Keywords: Wind energy, doubly fed induction generator, grid power, modelling, control.

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2

G. Pandian, G. Pandian, and S. Rama Reddy. "Implementation of Boost Converter Fed Induction Motor Drive." International Journal of Scientific Research 2, no. 11 (June 1, 2012): 221–23. http://dx.doi.org/10.15373/22778179/nov2013/71.

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3

Boros, Ruben Rafael, and István Bodnár. "Grid and PV Fed Uninterruptible Induction Motor Drive Implementation and Measurements." Energies 15, no. 3 (January 19, 2022): 708. http://dx.doi.org/10.3390/en15030708.

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Motors powered directly from solar panels are becoming more and more popular in pump applications. However, solar panels can be the source of operational issues due to varying irradiance, ambient temperature, weather. This paper shows how it is worth expanding a solar induction motor drive to provide an uninterrupted flow of electricity to the motor. In addition, the main components of the uninterruptible induction motor drive are presented, including the LLC (inductor-inductor-capacitor) converter, the three-phase inverter, and the three-phase rectifier. LLC converters that can increase the voltage from 25–40 V to 330 V cannot be bought directly from manufacturers. Therefore, a custom LLC converter was made for the research. It was necessary to build a custom converter to avoid the use of solar panel strings. This way, solar panels connected in parallel can be used. A low-voltage (25–40 V) supply was implemented from the solar side, while the induction motor requires 230 V AC three-phase voltage in delta connection. For this reason, a voltage boost is required from the low voltage side. The grid feeds the universal DC link through the three-phase rectifier. This allows the motor to consume varying amounts of electricity from the grid or the solar panel. The study also presents in detail the LLC converter that performs the voltage boost. Measuring the entire motor drive, switching transients and efficiencies can be observed at different input voltages for different supplies as well as loads.

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4

García, Nicolás Toro, Yeison Alberto Garcés Gomez, and Vladimir Henao Cespedes. "Robust control technique in power converter with linear induction motor." International Journal of Power Electronics and Drive Systems (IJPEDS) 13, no. 1 (March 1, 2022): 340. http://dx.doi.org/10.11591/ijpeds.v13.i1.pp340-347.

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Induction motors are widely used in industrial applications as actuators, thanks to their simplicity of construction, which is subsequently reflected in low-cost maintenance. This paper shows the behavior of a three-phase power converter with a linear induction motor (LIM) as load, using a quasi-sliding control technique for output voltage regulation and a new control technique to control chaos. Digital pulse width modulation (DPWM) techniques are widely used to control electronic power converters. The controller proposed in this paper was designed using zero average dynamic (ZAD) and fixed point inducting control (FPIC) techniques. The ZAD-FPIC control strategy was designed and applied to a three-phase converter with linear induction motor load. Since it is not possible to measure the secondary currents, a secondary current observer was included in the system. Finally, bifurcation diagrams are shown as a technique for tuning controller parameters in ZAD-FPIC controllers. For the illustration of numerical results a simulation of the linear induction motor drive controlled was made by MATLAB/Simulink. The designs were tested in a rapid control prototyping (RCP) system based on digital signal processing (DSP) for dSPACE platform, using the 1103 controller card and control desk interface.

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5

Sanket, B., A. Pandian, and K. V. Siva Reddy. "Performance Analysis of various dc-link Converters for Photovoltaic based Ac Drives." International Journal of Engineering & Technology 7, no. 2.7 (March 18, 2018): 872. http://dx.doi.org/10.14419/ijet.v7i2.7.11085.

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This paper proposes a Performance analysis of DC to DC converters connected to the induction motor drive. The circuit analysis and operating principle of the proposed M-ZS Converter is presented and also characteristics of the different DC-DC are projected. A keen comparison is done between the proposed Modified Z-Source Converter with Boost Converter and Z-Source Converter and MPPT behavior of three converters at different irradiance level and different loading conditions are analyzed. By with the help of MATLAB Simulink, the simulation results are evaluated and presented.

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6

Memon, Ahsanullah, Mohd Wazir Mustafa, Muhammad Naveed Aman, Abdul Hafeez, and Mukhtar Ullah. "Improving Transient Behavior of a Brushless Doubly Fed Induction Generator through Reactive Current Control of Grid-Side Converter." Electronics 10, no. 12 (June 11, 2021): 1413. http://dx.doi.org/10.3390/electronics10121413.

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Brushless doubly-fed induction generators have higher reliability, making them an attractive choice for not only offshore applications but also for remote locations. These generators are composed of two back-to-back voltage source converters, a grid side converter and a rotor side converter. Existing techniques use the rotor side converter for reactive current control; however, it is more suitable for stabilizing steady state behavior. In order to stabilize the voltage fluctuations at the point of common coupling (PCC) due to sudden inductive load introduction, the grid side converter may be a better choice due to faster response and higher control bandwidth. Therefore, this paper proposes a control scheme for the grid side converter to suppress the PCC voltage fluctuations when a large inductive load is suddenly connected. The proposed technique is based on an analytical model of the transient behavior of the voltage drop at the PCC. The analysis shows that reactive current control using the grid side converter introduces a double fundamental frequency component to the PCC voltage. To block this harmonic, we designed a notch filter. The simulation results in Matlab/Simulink show that the proposed technique can not only significantly reduce the voltage drop but also results in an 82% reduction in voltage distortion at the PCC.

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7

Aher, VN. "INDUCTION HEATING USING RESONANT CONVERTER." International Journal of Advanced Research 6, no. 12 (November 30, 2018): 514–16. http://dx.doi.org/10.21474/ijar01/8167.

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8

Nimaje, Kunal. "Review on Standalone Photovoltaic Water Pumping System using Induction Motor Drive." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 30, 2021): 4725–27. http://dx.doi.org/10.22214/ijraset.2021.35415.

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The project introduces a simple, low-cost agricultural pumping system. PV, Canonical Switching Cell Converter (CSCC), Boost Inverter and Motor Induction List. The input power of the booster inverter comes from CSV-based photovoltaic (PV). Requires a minimum number of current input elements that do not have the high characteristic power of a CSC converter. DC power conversion from a PV-converted CSV-based system to high voltage AC is achieved using inverter reinforcements. The system verified the maximum power output in the PV system using the P&O MPPT algorithm. Due to the CSC converter and the inverter boosting converter, this system requires a small number of PV series to start the induction motor pump system. The effectiveness of the proposed system will be verified by the MATLAB / SIMULINK environment and the required results will be displayed.

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9

Periyasamy, Muthu, and Chandrahasan Umayal. "Improved Time Responses of PI & FL Controlled SEPIC Converter based Series Resonant Inverter fed Induction Heating System." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 1 (March 1, 2018): 305. http://dx.doi.org/10.11591/ijpeds.v9.i1.pp305-315.

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This work deals with the Power Factor Corrected Single-Ended Primary Inductor Converter (PFC-SEPIC) based voltage fed closed loop full bridge series resonant induction heating system for household induction heating applications. The output voltage of the front end PFC-SEPIC converter fed series resonant inverter governs the controllers, which may be PI controller or Fuzzy Logic Controller (FLC). The analysis and comparison of time responses are presented in this paper. The PFC-SEPIC converter is used to improve the output power and the THD of source side current are compared for PI and FLC controllers. PFC-SEPIC converter maintains improved current and voltage at unity power factor through the input mains. The SEPIC converter based Voltage Fed Full Bridge Series Resonant Inverter (VFFBSRI) converts the voltage at a frequency of 10 kHz to a level suitable for household induction heating. A 1 kW SEPIC converter based VFFBSRI with RLC load is designed and simulated using MATLAB/ Simulink and hardware is fabricated.

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10

Nam, Nguyen Huu, G. S. Mytsyk, A. V. Berilov, and Myo Min Thant. "Algorithmic Structure of Wind Turbines System based on an Induction Machine Directly Connected to the Grid." MATEC Web of Conferences 220 (2018): 05004. http://dx.doi.org/10.1051/matecconf/201822005004.

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One of the relatively simple (comparatively cheap) and promising solutions of the wind power plant - the wind turbine system (WTS) with variable speed on the shaft of the wind wheel - is to execute it on the basic of an induction machine - IM. Today, the problem of self-excited induction machine is solved in two ways - by using either capacitors, or electronic converters. As a generating system (based on IM), several WTS are often used, working parallel or directly connected to the grid. For induction machine: squirrel-cage induction generator (SCIG) and doubly-fed induction generator (DFIG) are used, several possible types of them are systematized, evaluated and compared on functional features and properties. Based on computer simulations, the ability of DFIG with back to back converters (in the form of two serially connected 2 level voltage source converters - converter-1 and converter-2) is determined in the rotor circuit at a variable speed of the drive shaft (in modes sub-synchronous and hyper-synchronous speeds) give to the grid only active power. For mass-scale and energy indicators, this structure is the optimum for WTS.

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11

Reyes Severiano, Yesenia, Jesús Aguayo Alquicira, Susana Estefany De León Aldaco, and Luis Mauricio Carrillo Santos. "Comparative analysis of PD-PWM technique in the set: Multilevel Inverter-Induction motor." Ingeniería Investigación y Tecnología 21, no. 1 (January 1, 2020): 1–8. http://dx.doi.org/10.22201/fi.25940732e.2020.21n1.007.

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Currently, induction motors are widely used in industry because have a high potential for the efficiency improvement. Therefore, a topic of interest to the industry is to reduce the energy consumption of induction motors, as they represent almost half of the total electrical energy consumption in the world. The energy consumption of electric motors can be reduced by using motors that are more efficient and by using power converters to feed the motors, thereby enabling accurate control according to the load. The function of the power converter is to modify the intrinsic characteristics of the induction motor (speed and torque). There are different topologies of the power converter commonly called inverter for induction motors. An inverter requires a modulation strategy for its operation, there are several modulation strategies that are used in the induction converter-motor assembly. This paper presents the comparative analysis of the influence of the phase disposition modulation (PD-PWM) strategy with different modulation indices, on parameters related to the output signal of a seven-level cascaded multilevel inverter as well as on the nominal working conditions of a three-phase induction motor.

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12

KIRUBAKARAN, D., and S. RAMA REDDY. "EMBEDDED CONTROLLED PULSE CONVERTER FED INDUCTION HEATER." Journal of Circuits, Systems and Computers 19, no. 03 (May 2010): 581–95. http://dx.doi.org/10.1142/s0218126610006311.

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A pulse-current converter topology for induction heating is simulated and implemented. The possibility and expediency of the pulse current for induction heating have been demonstrated. The converter comprises the input filter, input reactor, bridge rectifier, two power switches, two coils mutually coupled with the input reactor and the heating inductor (load), where the output power is controlled by a switching frequency. The steady-state analysis of the converter operation and its computer simulation has been performed. The simulation on the computer are shown to be in good agreement with the theoretical results. The following two goals have been achieved: (a) the analysis of the heating process with the pulse current has been performed; and (b) the appropriate scheme of the pulse-current supply has been developed. The scheme fulfills the requirements of modern power supplies: sine form of the input current, unity power factor, soft commutation and a wide range of output power. This configuration can be used for heating, annealing, melting and hardening in the power range of 250–300 kW.

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13

Shenkman, A., Y. Berkovich, and B. Axelrod. "Pulse converter for induction-heating applications." IEE Proceedings - Electric Power Applications 153, no. 6 (2006): 864. http://dx.doi.org/10.1049/ip-epa:20050521.

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14

Sikorski, A., and A. Kuźma. "Cooperation of induction squirrel-cage generator with grid connected AC/DC/AC converter." Bulletin of the Polish Academy of Sciences: Technical Sciences 57, no. 4 (December 1, 2009): 317–22. http://dx.doi.org/10.2478/v10175-010-0134-z.

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Cooperation of induction squirrel-cage generator with grid connected AC/DC/AC converter The paper presents a squirrel-cage induction machine operating as a generator principally designed for use in small wind and hydroelectric power stations. The main advantages of such a generator are its high reliability, low price and costs of operation and maintenance. The asynchronous generator coupled to the grid through the AC/DC/AC converter is capable of generating energy even at low turbine speed. The results of investigations on the AC/DC and DC/AC converters controlled by linear and nonlinear current regulators are also discussed.

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15

Anusha, P., and B. V. Rajanna. "Induction drive system with DSTATCOM based asymmetric twin converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 11, no. 4 (December 1, 2020): 1826. http://dx.doi.org/10.11591/ijpeds.v11.i4.pp1826-1834.

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High power demands are usually met by advanced power electronics converters in several large utility and electric drives applications. Applications from high power drives commonly uses solution based multi pulse and multilevel converters. A common DC link with atleast one voltage source converter (VSC) working with almost fundamental switching frequency are used in converters of multipulse type, and each output module is connected with the multipulse transformer in series. When compared to that of solution with single-VSC, Several VSCs generating different triggering pulses are adjused in order to achieve current injected with low specified total harmonic distortion (THD) with losses of abridged switching. Huge structure in complexity and expensive cost expenditure of the multipulse transformer is the major limitation of this scheme. DC link split capacitors in addition are eliminated by modifying the topology of the circuit. Thus, the independent voltages of the DC capacitor are controlled and decreased in number and the flow of third harmonic current component in the transformer is eliminated. The scheme of the designed controller is depending on the derived mathematical system model. Simulaion observation is used to check the scheme performance and efficiency in a detailed way with drive control technique.

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16

Akhmatov, Vladislav. "Variable-Speed Wind Turbines with Doubly-Fed Induction Generators Part III: Model with the Back-to-back Converters." Wind Engineering 27, no. 2 (March 2003): 79–91. http://dx.doi.org/10.1260/03095240360698537.

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A model of the back-to-back converter is set up and implemented in the simulation tool PSS/E as a user-developed model. This model is applied with that of the doubly-fed induction generator (DFIG), described in previous parts of this work [parts II and I]. The latter models variable-speed wind turbines in power stability investigations. Subjected to a short circuit fault, there will be a risk of converter blocking, followed by tripping of the wind turbine [1, 3]. The main reasons of blocking are over-current in the rotor converter and over-voltage in the dc-link. The DFIG model, with representation of the back-to-back converter, results in (a) more accurate replication of the current in the rotor converter and (b) improved computation of the dc-link voltage. These improvements are compared with the model with representation of the rotor converter only. Hence, the DFIG model with representation of the back-to-back converters might be preferred, in practical investigations of power system stability, to models with representation of the rotor converter only.

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17

Raj P R, Neethu, and Vasanthi V. "Performance Analysis of Photovoltaic Induction Motor Drive for Agriculture Purpose." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 4 (December 1, 2016): 1252. http://dx.doi.org/10.11591/ijpeds.v7.i4.pp1252-1260.

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<p>This paper presents water pumping system using renewable source (solar) without the use of chemical storage batteries. In this converter-inverter circuit is used to drive Induction motor. The Converter used here is Two Inductor boost converter (TIBC), which consists of a resonant tank, voltage doubler rectifier and a snubber circuit. TIBC is designed to drive the three phase induction motor from PV energy. TIBC converter is also known as current fed multi resonant converter having high voltage gain and low input current ripple. Converter switches are controlled through hysteresis controller and ZCS resonant topologies. Solar PV power fluctuates according to irradiation level of sunlight and hence tracking of maximum power at all time is mandatory. SPWM control with third harmonic injection is used to trigger the IGBT’s in the inverter. The development is oriented to achieve a more efficient, reliable, maintenance free and cheaper solution than the standard ones, that uses DC motors or low voltage synchronous motors. The proposed method is verified with MATLAB/SIMULINK and the system simulation confirms the performance of the proposed system.</p>

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18

Branislav Dobrucky, Slavomir Kascak, Michal Prazenica, and Roman Konarik. "Basic Comparison and Evaluation of Functionality AC-AC Matrix Converter Concepts for HEV Vehicle - Part II." Communications - Scientific letters of the University of Zilina 22, no. 2 (April 1, 2020): 73–78. http://dx.doi.org/10.26552/com.c.2020.2.73-78.

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The paper deals with a modeling and simulation of the direct AC-AC propulsion system and compares two matrix converter concepts with five-phase traction induction motors (IM) for the hybrid electric vehicle (HEV). The simulation results of [3x5] matrix converter and 4Q-converter are done using Matlab-Simulink environment. Part I deals with a theoretical study of converter concepts for hybrid electric vehicle, since the configurations of [3x5]+[0x5] matrix converters with five-phase motor(s) have not been analyzed so far. Based on simulation results the comparison and evaluation of the property and quality of the quantities of different type of the matrix powertrain are discussed in Part II.

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19

Isembergenov, N. Т., A. J. Sagyndikova, and M. Zh Konyrova. "Frequency Converter for Induction Heating Oil in Oil Pipelines." WSEAS TRANSACTIONS ON ELECTRONICS 12 (March 31, 2021): 24–31. http://dx.doi.org/10.37394/232017.2021.12.4.

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Heating oil in oil pipelines to the required temperature, with the most efficient use of electrical energy,is possible with using of the induction heating method. The most important parameter of induction heating settings is frequency. For each process, there is an optimal frequency range that provides the best technological and economic results. Induction heating of the oil pipeline occurs as follows, if alternating high-frequency current is passed through the windings of the oil pipeline inductor (Fig. 1), an alternating magnetic field is formed, which intersects the metal walls of the oil pipeline and induces eddy currents in them. These currents heat the metal walls of the pipeline to the desired temperature and, accordingly, the oil. MITSUBISHI's VIPM Series Intelligent Power Transistor Modules (IPM), which is a functionally complete product, are currently developed and marketed. These transistor modules are designed for high voltages, currents and power. A frequency converter made on these transistor modules allows to heat large diameter oil pipelines. A prototype IGBT transformer was designed and manufactured. Figure 2 shows a prototype of a frequency converter with a power of 6 kW at frequencies from 2 to 20 kHz. Induction heating of metal was used as a load for the frequency converter

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20

Gouveia, José, Carlos L. Moreira, and João A. Peças Lopes. "Influence of Load Dynamics on Converter-Dominated Isolated Power Systems." Applied Sciences 11, no. 5 (March 6, 2021): 2341. http://dx.doi.org/10.3390/app11052341.

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The operation of isolated power systems with 100% converter-based generation requires the integration of battery energy storage systems (BESS) using grid-forming-type power converters. Under these operating conditions, load dynamics influences the network frequency and voltage following large voltage disturbances. In this sense, the inclusion of induction motor (IM) load models is required to be properly considered in BESS power converter sizing. Thus, this paper presents an extensive sensitivity analysis, demonstrating how load modeling affects the BESS power converter capacity when adopting conventional control strategies while aiming to assure the successful recovery of all IM loads following a network fault. Furthermore, this work highlights that generators with converter interfaces can actively contribute to mitigate the negative impacts resulting from IM loads following a network fault. Thereby, two distinct control strategies are proposed to be integrated in the power electronic interfaces of the available converter-based generators: one to be adopted in grid-following converters and another one suitable for grid-forming converters. The proposed control strategies provide an important contribution to consolidating insular grid codes, aiming to achieve operational scenarios accommodating 100% penetration of converter-based generation with a significative percentage of the IM load composition without resorting to a significative increase in BESS power converter sizing.

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21

Chen, Xunjun, and Zhigang Liu. "Impedance Modeling and Stability Analysis of the Converters in a Double-Fed Induction Generator (DFIG)-Based System." Energies 12, no. 13 (June 28, 2019): 2500. http://dx.doi.org/10.3390/en12132500.

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Harmonic stability of double-fed induction generators (DFIGs) now has become a significant topic because of its harmful impact on power quality issues of the system. Since the double pulse width modulation (PWM) converter is one of the main harmonic sources in DFIGs, it may cause harmonic instability with increasing harmonic contents. Thus, the modeling and stability analyses of PWM converters in DFIGs are essential steps to assess the harmonic stability of DFIGs. Aiming at dual PWM converters, which include the grid side converter (GSC) and the rotor side converter (RSC), this paper divides converters into two parts: circuit modules and control modules. Closed-loop input impedance models of each module are then derived by means of transfer functions. Hence, the stability of the system can be readily predicted through Nyquist diagrams. The contributions of parameters to the system’s harmonic stability are also identified. Finally, time-domain simulations are conducted in a real-time digital simulation (RTDS) system. Simulation results confirm that the established impedance model can effectively reveal the stability of the DFIG-based system and can give critical conditions for the occurrence of harmonic instability.

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22

Tępiński, Jarosław. "Converter Compensation of Reactive Power Consumed by the Induction Generato." Safety & Fire Technology 57, no. 1 (2021): 64–79. http://dx.doi.org/10.12845/sft.57.1.2021.5.

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Purpose: The purpose of the article is to present a reactive power compensation for small hydropower plants with an induction generator. The classic compensation with capacitors is discussed and its improvement is proposed. Instead of capacitors, a three level power electronic converter connected in parallel to the induction generator can be used to provide reactive power compensation. The purpose of the paper is to present the developed structure of an active compensator and its control method. The developed control method was verified on a laboratory stand. The project and the methods: As part of research, an active compensator was built as a three-level power electronic converter in topology with Neutral Point Clamped. Laboratory tests of a converter compensator were carried out on a stand equipped with an induction generator with a power of 7.5 kW. Laboratory system measurements were made using a power analyzer and an oscilloscope. Results: A control structure of an active compensator based on a voltage-oriented method was presented and discussed. The operation of the con- verter compensator has been verified on a laboratory stand equipped with a 7.5 kW induction generator. The compensator current reduces the reactive (inductive) component of the current consumed from a power grid to a value equal to zero. The reactive power compensator ensures that the tgφ power factor is maintained at a set value of zero, which corresponds to the total compensation of inductive reactive power consumed by an induction generator working in a hydropower plant. Operation of the active compensator did not cause a significant increase in the harmonic content in the current consumed from the power grid. Conclusions: The paper presents the issues regarding reactive power compensation in hydropower plants with induction generators. Commonly used capacitor compensation has been covered and as a result, it is proposed to replace it with power electronics converter compensation of reactive power connected in parallel induction generators. Active compensator provides compensation for the entire reactive power consumed by the induction generator. The use of the converter compensator of reactive power significantly contributes to the reduction of costs for reactive power incurred by the owners of hydropower plants. The reactive power compensator also has a positive impact on the operation of the entire power grid, power losses from the reactive component of the current on the impedances of power grid components are limited. Keywords: renewable source of electricity, reactive power, active compensator, induction generator Type of article: original scientific article

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23

Branislav Dobrucky, Slavomir Kascak, Michal Prazenica, and Roman Konarik. "Basic Comparison And Evaluation Of Functionality AC-AC Matrix Converter Concepts For HEV Vehicle - Part I." Communications - Scientific letters of the University of Zilina 22, no. 1 (January 2, 2020): 77–83. http://dx.doi.org/10.26552/com.c.2020.1.77-83.

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The paper deals with the direct AC-AC propulsion system and compares two matrix converter concepts with fivephase traction induction motors (IM) for the hybrid electric vehicle (HEV) including electronic differential. The first one consists of [3x5] matrix converter and [3x1] active PWM rectifier (4Q-converter) for full power performance. The second one comprises one [3x5] matrix converter for full power and auxiliary [0x5] matrix converter for partial output power. Configurations of [3x5] + [0x5] MxC converters with five-phase motor(s) are not analyzed in available literature so far. The advantage of the proposed connection is in supposed higher efficiency of matrix converter then clasiccal VSI one. Part I deals with a theoretical study of converter concepts for hybrid electric vehicle. Based on simulation results the comparison and evaluation of the property and quality of the quantities of different type of the matrix powertrain are discussed in Part II.

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24

Elangovan, P., C. Kumar, and B. Gomathy. "High Efficient Induction Motor Drives Using Triple Lift Converter." Applied Mechanics and Materials 573 (June 2014): 46–51. http://dx.doi.org/10.4028/www.scientific.net/amm.573.46.

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This paper proposes a high efficient advanced DC-DC converter by name Triple-Lift converter in the front end of Induction motor (IM) drives system. The conventional IM drives use PWM rectifier, boost converter, buck-boost converter, etc., in the front end which holds inadequacy in pump-up voltage and deprived output current. The Triple-Lift converter (TLC) implemented in the system employs voltage lift technique and produces the output voltage in arithmetic progression. The voltage source inverter (VSI) coupling IM derives a wide range of DC input (ripple free) from TLC which can be adopted for high rated motors with good efficiency. Simulation results using MATLAB show the effectiveness of the proposed converter arrangement for IM drives.

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25

Ganesan, K., S. Subamalini, and A. Dhinesh. "Implementation of Slip-Controller for Induction Motor Drive Employing Indirect Matrix Converter." International Journal of Engineering Research 3, no. 4 (April 1, 2014): 201–5. http://dx.doi.org/10.17950/ijer/v3s4/403.

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BASUKI, GAMAR, ERA PURWANTO, HARY OKTAVIANTO, MENTARI PUTRI JATI, and MOCHAMAD ARI BAGUS NUGROHO. "Aplikasi Direct Matrix Converter pada Pengendali Kecepatan Motor Induksi 3 Fase menggunakan Modulasi Venturini." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 8, no. 3 (August 27, 2020): 518. http://dx.doi.org/10.26760/elkomika.v8i3.518.

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ABSTRAKMotor induksi yang paling banyak digunakan juga memiliki kekurangan seperti losses yang cukup tinggi, power factor correction, dan efisiensi yang rendah. Oleh karena itu, dibutuhkan pengendali motor induksi yang memiliki performa dan efisiensi yang tinggi. Salah satu jenis AC – AC konverter yang mempunyai efisiensi, lifetime, kekompakan dan faktor daya mendekati unity yang akan digunakan sebagai pengendali motor induksi adalah matrix converter. Metode venturini digunakan sebagai modulasi pada matrix converter. Untuk itu dalam penelitian ini dilakukan pembuatan simulasi menggunakan simulink MATLAB dan hardware matrix converter. Pengujian matrix converter menggunakan modulasi venturini sebagai pengendali motor induksi telah dilakukan dengan motor dapat berputar mencapai kecepatan nominal sebesar 1440 Rpm sesuai nameplate dan motor juga dapat berputar dibawah frekuensi nominal. Dengan penelitian ini, pengendalian motor induksi dapat lebih efisien dalam penggunaannya di berbagai bidang.Kata kunci: Matrix converter, metode venturini, motor induksi. ABSTRACTThe most widely used induction motors also have disadvantages such as fairly high losses, power factor correction, and low efficiency. From this disadvantages, we need an induction motor controller that has high performance and efficiency. One type of AC-AC converter that has efficiency, lifetime, compactness and power factor approach to unity that will be used as an induction motor controller is a matrix converter. The Venturini method is used as modulation in the matrix converter. For this reason, in this study, simulation was made using MATLAB simulink and hardware matrix converter. Matrix converter testing using venturini modulation as an induction motor controller has been done with the motor can be rotate reaching a nominal speed of 1440 Rpm according to nameplate and the motor can also rotate below the nominal frequency. It is expected that induction motor controller can be more efficient in their use in various fields.Keywords: Matrix converter, venturini method, induction motor

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Elaimani, Hind, Ahmed Essadki, Noureddine Elmouhi, and Rachid Chakib. "Comparative Study of the Grid Side Converter’s Control during a Voltage Dip." Journal of Energy 2020 (February 1, 2020): 1–11. http://dx.doi.org/10.1155/2020/7892680.

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The modeling and control of a wind energy conversion system based on the Doubly Fed Induction Generator DFIG is the discussed theme in this paper. The purpose of this system was to control active and reactive power converted; this control is ensured thanks to the control of the two converters. The proposed control strategies are controlled by PI regulators and the sliding mode technique. In the present work a comparison of the robustness of the 2 controls of the grid side converter (GSC) during a voltage dip is shown. The simulation is carried out using the Matlab/Simulink software with a 300 kW generator.

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Verma, Chanchal, and B. Anjanee Kumar. "Comparison of dc-dc converters with SEPIC converter for wind driven Induction generators." International Journal of Engineering Trends and Technology 39, no. 4 (September 25, 2016): 180–83. http://dx.doi.org/10.14445/22315381/ijett-v39p231.

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Jasim, Ali Abdulrazzak. "Simulation and Study of Multilevel Inverter System Fed By Photovoltaic Source." Journal of University of Babylon for Engineering Sciences 26, no. 2 (January 1, 2018): 302–10. http://dx.doi.org/10.29196/jub.v26i2.500.

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This paper proposes a simulation of Photovoltaic energy used to supply an induction motor with acomparison of two types of inverters.In general, the greater number of motorswhich"are used incommercial and industrial applicationsare"induction motors. To use PV source to run the induction motor, an interface circuits are used which are a dc-dc"converter and an inverter, the PV cell has nonlinear behavior,"adc-dc converter is used along with Maximum Power Point Tracker controllerto improve theefficiency by boosting the output voltage of the PV module and to match the load demand."The dc output voltage of PV modulethen"converted to AC, two types of inverter are presented, A conventional Voltage Source Inverter system and multilevel inverter system which employselective harmonic eliminationmethod fed three phase induction motor, these two types of inverters are simulated using Matlab/Simulink and their results are presented. The FFT spectrum is presented of the output currents to analyze the harmonics reduction, which shows that the"multilevel inverter is better than VSI system"according to harmonics reduction and increment in output voltage and power.

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30

Górski, Dominik Andrzej. "Analysis of squirrel-cage induction generator start-up supported by reactive power compensator." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 39, no. 2 (November 16, 2019): 265–78. http://dx.doi.org/10.1108/compel-04-2019-0149.

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Purpose The power electronic converter is used for the satisfaction of reactive power demand of induction generator, when grid-tied. This paper aims to present an application of STATCOM to reduce inrush transient caused by the connection of a squirrel-cage induction generator (SCIG) to the grid. Design/methodology/approach The power generation system consists of an uncontrolled prime mover, a SCIG and a power electronic converter connected to the grid. The three-phase Neutral Point Clamped (NPC) converter works as a STATCOM to satisfy a reactive power demand of the generator. A control scheme of STATCOM uses the x-y reference frame rotating synchronously with grid voltage vector and the p-q instantaneous power theory to calculate q component of grid power. Findings It is shown that the parallel converter, which works as a reactive power compensator allows decreasing transients during a grid connection of the induction generator. Research limitations/implications Transients during a grid connection of the induction generator are only partially decreased. Practical implications It is needed to compensate for the reactive power of a SCIG. The NPC converter works as a STATCOM. The converter partially reduces grid transients during generator connection. The laboratory tests are demonstrated by connection 7.5 kW induction generator to 8 kVA transformer. Originality/value The paper presents the mitigation of grid transients during connection of induction generator with the power electronic converter working as reactive power compensator.

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31

Andrade, Darizon A. de, Marcos A. A. de Freitas, Luciano M. Neto, Hélder de Paula, and José L. Domingos. "Effects of magnetic saturation on induction machines driven by static converters." Sba: Controle & Automação Sociedade Brasileira de Automatica 15, no. 2 (June 2004): 181–89. http://dx.doi.org/10.1590/s0103-17592004000200007.

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The effects of magnetic saturation on the operation of induction motors driven by static converters are analyzed. A mathematical model based on magnetic harmonic functions is used to account for saturation. Distortions on the air gap flux due to non-linear magnetic characteristics lead to appearance of space harmonics in the resultant flux density distribution. This causes specific distortions in stator and rotor time quantities, which are different from those due to static converter. Operation with six pulse and sinusoidal PWM converters under saturated conditions is considered. Comparisons of experimental and simulated results are presented and found to be in very good agreement.

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32

Devika, M., and L. Pavithra. "A brief study on matrix converter for wind mill application." YMER Digital 21, no. 01 (January 13, 2022): 206–19. http://dx.doi.org/10.37896/ymer21.01/19.

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The wind energy is one of the low qualities because of change in direction and velocity of wind. So, the input power and the frequency will be varied which affects the operation of system. For a prescribed wind velocity, the mechanical power available from the wind turbine is function of shaft speed. The shaft speed is varying due to the change in the wind velocity; thereby change in frequency and voltage is developed at the output of the induction generator. Power electronics converters are used for stabilizing the varying parameters and to obtain a constant frequency of 50Hz. commonly used power electronic device is back-to-back converters or ACDC-AC converters which has many disadvantages like costly, bulky. Through matrix converter, the terminal voltage and frequency of the induction generator can be controlled in such a way that the wind turbine will be operating at a constant frequency of 50 Hertz.

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Abronzini, Umberto, Ciro Attaianese, Matilde D’Arpino, Mauro Di Monaco, and Giuseppe Tomasso. "Induction Motor Drives Fed by an NPC Inverter with Unbalanced DC-Link." Electronics 8, no. 12 (November 21, 2019): 1379. http://dx.doi.org/10.3390/electronics8121379.

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Neutral Point Clamped (NPC) converters with n levels are traditionally controlled in such a way that the DC-link capacitors operate at 1/( n - 1) of the total DC-link voltage level. The voltage level across the DC-link capacitors has to be properly regulated by the capacitor unbalance control to contain the harmonic distortion of the converter output voltages. State-of-the-art modulation techniques address the problem of the DC-link voltage regulation for NPC inverters. However, they highly show reduced performance when unbalanced DC-link voltages are considered. In this paper, a novel Space Vector Modulation (SVM) is proposed for NPC converters with an unbalanced DC-link. At every modulation interval, the technique defines the optimal switching pattern by considering the actual unbalanced DC-link conditions. The proposed modulation allows improving the harmonic content of the NPC converter output voltage with respect to a traditional ML-SVM, when the same operating conditions are considered. As an extension, the proposed modulation technique will guarantee the same output voltage quality of a traditional ML-SVM with unbalanced DC-link, while improving the conversion efficiency thanks to a reduction of switching frequency.

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34

Cipriano dos Santos Júnior, Euzeli, Cursino Brandão Jacobina, and Maurício Beltrão de Rossiter Corrêa. "Ac Drive Systems Using Reduced Four-leg Converter Supplying Independently Two Induction Machines." Eletrônica de Potência 12, no. 1 (March 1, 2007): 81–88. http://dx.doi.org/10.18618/rep.2007.1.081088.

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35

Zhu, X. X., J. F. Hu, and C. R. Xiong. "Design of Power Control System on Medium Frequency Induction Furnace Using Microcontroller." Applied Mechanics and Materials 236-237 (November 2012): 1349–55. http://dx.doi.org/10.4028/www.scientific.net/amm.236-237.1349.

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The medium frequency induction furnace power control system of industrial grade includes the microcontroller STC89C52RC, power converters, data amplifiers, analog to digital converter, stepper motor and excitation regulator, etc. The medium frequency generator’s output voltage and current signals are passed to the power converter to transform the millivolt DC signal into a linear relationship. The outputs from the power amplifier controlled by the data conversion single-chip are input through the ADC. The signals are compared with the power base value set by the user to calculate the control commands, to control the stepper motor action and control the stepper motor to forward or reverse, as well as to adjust the excitation current. Therefore, the medium frequency generator output power is stable. The heating temperature of the work pieces are precise controlled. A detailed description of the system's hardware and software composition and design methods are illustrated in this paper.

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36

Sebastian, Praveen, and Jomole Joseph. "PV Based Resonant Two Inductor Boost Converter for Induction Machine Drive Application." International Journal of Engineering Trends and Technology 27, no. 5 (September 25, 2015): 254–60. http://dx.doi.org/10.14445/22315381/ijett-v27p246.

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37

Liu, Shu Xi, Shan Li, and Juan He. "Unity Power Factor Control of a Direct-Driven Permanent Magnet Synchronous Wind-Power Generator Based on Three-Level Converter." Advanced Materials Research 347-353 (October 2011): 2227–30. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2227.

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Direct-driven permanent magnet synchronous generator (PMSG) has become an important research subject besides the double-fed induction generator. With the increasing of unit capacity, the study of topology of high power converters based on multi-level converter is attracting more and more attention. The study of vector control of the direct-driven permanent magnet synchronous wind turbines based on three-level converter is carried out in this paper. Based on the maximum wind-energy capture control of the PMSG, the unity power factor operation of PMSG is realized by controlling the d-axis current to zero in the generator-side converter. A detailed comparative study of two-level system and three-level system is conducted. The simulation results verify the validity of this algorithm.

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38

Dunaev, Mikhail P., and Dmitry N. Kazankov. "MODELING ELECTRIC DRIVE SYSTEM “FREQUENCY CONVERTER – INDUCTION MOTOR”." Proceedings of Irkutsk State Technical University 21, no. 7 (July 2017): 102–8. http://dx.doi.org/10.21285/1814-3520-2017-7-102-108.

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39

Bakal, Shital, and Sanjay M. Shinde. "VOLTAGE CONTROLLED SEPIC CONVERTER FED INDUCTION MOTOR DRIVE." Journal of Research in Engineering and Applied Sciences 6, no. 1 (January 21, 2021): 38–42. http://dx.doi.org/10.46565/jreas.2021.v06i01.007.

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40

Kumar, Anand, Pradip Kumar Sadhu, Dusmanta Kumar Mohanta, and Maddikara Bharata Reddy. "An Effective Switching Algorithm for Single Phase Matrix Converter in Induction Heating Applications." Electronics 7, no. 8 (August 18, 2018): 149. http://dx.doi.org/10.3390/electronics7080149.

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Prevalent converters for induction heating (IH) applications employ two-stage conversion for generating high-frequency magnetic field, namely, AC to DC and then DC to high-frequency AC (HFAC). This research embarks upon a direct conversion of utility AC to high frequency AC with the design of a single-phase matrix converter (SPMC) as a resonant converter using a modified switching technique for IH application. The efficacy of the proposed approach is validated through different attributes such as unity power factor, sinusoidal input current and low total harmonic distortion (THD). The developed prototype-embedded system has high pragmatic deployment potential owing to its cost effectiveness using Arduino mega 2560 and high voltage/current as well as low switching time IXRH40N120 insulated-gate bipolar transistor (IGBT). Different results of the prototype-embedded system for IH application have been verified using Matlab Simulink environment to corroborate its efficacy.

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41

Bordeașu, Dorin, Octavian Proștean, and Cornel Hatiegan. "Contributions to Modeling, Simulation and Controlling of a Pumping System Powered by a Wind Energy Conversion System." Energies 14, no. 22 (November 17, 2021): 7696. http://dx.doi.org/10.3390/en14227696.

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At present, the energy consumption of the pumping unit represents the highest cost in operating a pumping system. Due to this reason, this paper proposes a reliable and robust solution for integrating a wind energy conversion system (WECS) into an already existing pumping system (PS), without being overly intrusive for the PS, and without altering the control strategy or the hardware of the commercial WECS. The current work begins by presenting the modeling undertaken, which includes a WECS with pitchable blades, a doubly-fed induction generator (DFIG) together with its power converter, a centrifugal pump, an induction motor (IM) with its power converter, and an irrigation network with a pressure transducer. The second part consists of the proposed three-level controller: a general controller that regulates the WECS power demand according to the pumping pressure reference; three second-level controllers; two necessary for the WECS and one for the PS; and three first level controllers, two for controlling the power converters of the WECS generator and one for controlling the pump motor power converter. Finally, the simulation results of the proposed system control strategy are presented, showing its technical feasibility and good performance.

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42

Sokolovs, A., L. Grigans, E. Kamolins, and J. Voitkans. "An Induction Motor Based Wind Turbine Emulator." Latvian Journal of Physics and Technical Sciences 51, no. 2 (April 1, 2014): 11–21. http://dx.doi.org/10.2478/lpts-2014-0009.

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Abstract The authors present a small-scale wind turbine emulator based on the AC drive system and discuss the methods for power coefficient calculation. In the work, the experimental set-up consisting of an AC induction motor, a frequency converter, a synchronous permanent magnet generator, a DC-DC boost converter and DC load was simulated and tested using real-life equipment. The experimentally obtained wind turbine power and torque diagrams using the emulator are in a good agreement with the theoretical ones.

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43

Ramesh, Adireddy, M. Siva Kumar, and O. Chandra Sekhar. "Interleaved Boost Converter Fed with PV for Induction Motor/Agricultural Applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 3 (September 1, 2016): 835. http://dx.doi.org/10.11591/ijpeds.v7.i3.pp835-853.

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In present Electricity market Renewable Energy Sources (RES) are gaining much importance. The most common Renewable Energy Sources are Photo voltaic (PV), fuel cell (FC) and wind energy systems, out of these three PV systems PV system can implemented in most of the locations. Due to the power cuts and power disturbances in Distribution systems agriculture application is concentrated on PV based Energy system. The use of PV system is increasing day by day in agriculture application, due to their ease of control and flexibility. PV Electrification schemes also involves various subsidies in government national and international donors. Especially in Agriculture field by use of PV one can achieve higher subsidy. The output of PV system is low voltage DC to have high efficiency. The motors used in agriculture field are Induction Motors (IM) fed from Three phase AC supply, to boost the PV output we need a high voltage gain boost converter along with PWM inverter to Induction motor drive. Out of various DC-DC converter configurations interleaved boost converter is gaining much attention, due to its reduction in size and Electromagnetic Interference (EMI). In this work we are proposing a PV fed interleaved boost converter with PWM inverter for agriculture applications. The design process of interleaved boost converter is explain detail and compared with existing boost converter. A 10KW Power rating is choosing for the Induction motor drive and design calculations are carried out. A MATLAB/SIMULINK based model is developed for boost and interleaved boost converter and simulation results are presented, finally a scaled down hardware circuit design for interleaved boost converter and results are presented.

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44

Chuprina, Nikolay, Sergey Sedykh, Aleksandr Pugachev, and Vladimir Maklakov. "SIMULATION OF AC ELECTRIC DRIVE WITH SPACE-VECTOR MODULATION ALGORITHMS." Automation and modeling in design and management, no. 1 (March 17, 2022): 80–88. http://dx.doi.org/10.30987/2658-6436-2022-1-80-88.

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The relevance of investigation of induction motor electric drives with frequency converters having voltage source inverter with space-vector modulation is shown. The brief survey of researches of such matter is carried out. The aim of this article is to develop mathematical and computer model of frequency converter with space-vector modulation algorithms by means of Matlab Simulink, this model has to be implemented into the Matlab models of AC electric drives with induction and synchronous motors. To achieve such an aim, it needs to introduce techniques of electric drive theory, numerical techniques, techniques of algebraic equations system solution, techniques of computer simulation. The still two-phase framework is applied to describe the converter model. The two-level voltage source inverter is chosen for the investigation of modulation algorithms. To verify the mathematical model of space-vector modulation, the model of 5.5 kW induction motor is used. Induction motor and power switches are modelled by means of Matlab SimPowerSystems units. The results of simulation show the adequacy of the developed model in both steady state and transient modes. One can conclude the dependence of total harmonic distortion of the induction motor stator current from load torque, switching frequency of voltage source inverter’s power switches and stator current frequency for the electric drive with scalar control system.

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45

Herasymenko, Pavlo, and Volodymyr Pavlovskyi. "Soft start-up strategy of pulse-density-modulated series-resonant converter for induction heating application." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 1 (March 1, 2021): 258. http://dx.doi.org/10.11591/ijpeds.v12.i1.pp258-272.

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This paper presents a soft start-up strategy of pulse-density-modulated series-resonant converter for induction heating application. The pulse-density modulation (PDM) technique is widely used in converters based on voltage-source series-resonant inverters (SRIs) to control the output current or power. However, during a start-up process, PDM has some disadvantages both in inrush current limiting and providing a zero-voltage switching operation of SRI transistors. In the paper, different PDM techniques are considered and basic moments of PDM using within the start-up process are analyzed. A new soft start-up strategy of PDM converter for induction heating application is proposed. The main features of the proposed strategy include an interleaved or a stepped PDM control, an initial combination of PDM at the beginning of the start-up process, and an operating algorithm during the start-up process. The proposed strategy was verified by a 2.5 kW experimental setup of the pulse-density-modulated interleaved converter with an operating frequency from 50 kHz up to 100 kHz. Experimental results confirm the effectiveness of the proposed start-up strategy and show that the maximum current amplitude within start-up processes exceeds the maximum steady-state current amplitude by no more than 30%.

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46

Yue, Yun Tao, and Zhi Yong Xu. "Research on Neutral-Point Balancing for Three-Level Space Voltage Vector Converter." Advanced Materials Research 748 (August 2013): 473–76. http://dx.doi.org/10.4028/www.scientific.net/amr.748.473.

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A novel hybrid clamped dual-PWM three-level converter topology is proposed for induction motor drives in this paper. The switching states of hybrid clamp three-level converters increase to sixty-four from twenty-seven switching states of diode clamp three-level converters. In order to realize optimization of its redundant voltage space vectors by detecting voltage of clamp capacitor and difference of capacitor voltage in DC side, Generating an optimized switching pattern, The hybrid clamped three-level converter increases the voltage levels number, reducing the harmonics associated to the commutation frequency and limiting the dv/dt by all the switches . It can quickly balance the DC voltage, Realized system of 4-Quardant Running. the control circuit and main circuit was designed with DSP and CPLD, experimentation results proved it is very effective and practicability.

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47

Bolyukh, V. F. "EFFECT OF ELECTRIC CONDUCTING ELEMENT ON INDICATORS OF LINEAR PULSE ELECTROMECHANICAL CONVERTER INDUCTION TYPE." Tekhnichna Elektrodynamika 2020, no. 3 (May 5, 2020): 22–29. http://dx.doi.org/10.15407/techned2020.03.022.

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48

Gaiceanu, M., and S. Epure. "IMPROVEMENTS ON THE ELECTRIC DRIVE ELEVATOR PROTOTYPE. PART II OPERATING TESTS." Scientific Bulletin of Electrical Engineering Faculty 18, no. 1 (April 1, 2018): 49–54. http://dx.doi.org/10.1515/sbeef-2017-0022.

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Abstract The prototype of the electric elevator consists of grid power converter connected with three different loads through the adequate power converters [1]. The main objective of this paper is to develop the industrial solution of the regenerative elevator power system, a system containing DC machines, asynchronous three-phase and synchronous with permanent magnets motors. In this paper, only the improvements done on the three-phase power inverter connected to the induction motor will be described. The same improvements can be applied to the three-phase power inverter connected to the synchronous machine. The grid power converter assures the unity power factor operation. The resulted experimental results are shown.

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49

Solovev, Denis B., and Alena E. Merkusheva. "Novel Active Current Transducers for Diesel Power Stations." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 1 (March 1, 2016): 152. http://dx.doi.org/10.11591/ijpeds.v7.i1.pp152-158.

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Autonomous diesel power plants found the active application at the organization of autonomous power supply of the mining enterprises. In article the problem of increase of efficiency of use of control units is considered by the active power of synchronous generators of diesel power plants. As a solution the new innovative offer in the form of the developed device of the measuring converter of active current which is one of the main components of game-trolno-measuring equipment of diesel power plants is offered. The developed scheme is simpler, in comparison with the similar converters of active current executed on the basis of current transformers. In the developed scheme of the measuring converter it is offered to use the differentiating induction converters of current as primary measuring converters. It allows to reduce many times number of the elements entering the standard scheme, and also mass-dimensional characteristics of the device

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50

Bašić, Mateo, Dinko Vukadinović, and Miljenko Polić. "Analysis of Power Converter Losses in Vector Control System of a Self–Excited Induction Generator." Journal of Electrical Engineering 65, no. 2 (March 1, 2014): 65–74. http://dx.doi.org/10.2478/jee-2014-0010.

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Abstract This paper provides analysis of losses in the hysteresis-driven three-phase power converter with IGBTs and free-wheeling diodes. The converter under consideration is part of the self-excited induction generator (SEIG) vector control system. For the analysis, the SEIG vector control system is used in which the induction generator iron losses are taken into account. The power converter losses are determined by using a suitable loss estimation algorithm reported in literature. The chosen algorithm allows the power converter losses to be determined both by type (switching/conduction losses) and by converter component (IGBT/diode losses). The overall power converter losses are determined over wide ranges of rotor speed, dc-link voltage and load resistance, and subsequently used for offline correction of the overall control system’s losses (efficiency) obtained through control system simulations with an ideal power converter. The control system’s efficiency values obtained after the correction are compared with the measured values.

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