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Journal articles on the topic 'Reluctance motors'

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Author: Grafiati

Published: 4 June 2021

Last updated: 9 March 2023

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1

Dirba, J., L. Lavrinovicha, and R. Dobriyan. "Prospects for Use of Synchronous Reluctance Motors in Low-Power Electrical Devices." Latvian Journal of Physics and Technical Sciences 52, no. 2 (April 1, 2015): 40–48. http://dx.doi.org/10.1515/lpts-2015-0010.

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Abstract This paper focuses on studying the synchronous reluctance motors as an alternative to low-power commutator motors. Analysis is done for the improved design of synchronous reluctance motor with a segmental external rotor. Relevant equations and a suitable method are proposed for calculating characteristics of the synchronous reluctance motors operating in a specific mode with electronic commutation as switched reluctance motors. It is concluded that synchronous reluctance motors in this mode can provide a wide range of characteristics and are quite competitive with commutator motors used in low-power devices.

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2

Ozcelik, Nezih Gokhan, Ugur Emre Dogru, Murat Imeryuz, and Lale T. Ergene. "Synchronous Reluctance Motor vs. Induction Motor at Low-Power Industrial Applications: Design and Comparison." Energies 12, no. 11 (June 8, 2019): 2190. http://dx.doi.org/10.3390/en12112190.

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Although three-phase induction motors are the most common motor type in industry, a growing interest has arisen in emerging electric motor technologies like synchronous reluctance motors and permanent magnet motors. Synchronous reluctance motors are a step forward compared to permanent magnet motors when the cost of the system is considered. The main focus of this study is low-power industrial applications, which generally use three-phase induction motors. In this study, the synchronous reluctance motor family is compared at three different power levels: 2.2 kW, 4 kW, and 5.5 kW. The aim of this study is to design and compare synchronous reluctance motors, which can be alternative to the reference induction motors. Finite element analysis is performed for the reference induction motors initially. Their stators are kept the same and the rotors are redesigned to satisfy output power requirements of the induction motors. Detailed design, analysis, and optimization processes are applied to the synchronous reluctance motors considering efficiency, power density, and manufacturing. The results are evaluated, and the optimized designs are chosen for each power level. They are prototyped and tested to measure their performance.

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3

Tiwari, Rajesh, and K. Rama Krishna. "Simulink modelling of C-Dump Converter employed in Switched Reluctance Motor." Journal of Futuristic Sciences and Applications 4, no. 1 (2021): 28–35. http://dx.doi.org/10.51976/jfsa.412105.

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Switched reluctance motors are among the finest competitors to induction motors. It is a well-liked choice because of its durability, brevity, straightforward design, and superior torque to mass ratio. Currents in the stator winding of a switching reluctance motor have a direct impact on the torque generated. A large negative voltage must be offered in order to quickly stop the current while it is working in the demagnetizing phase. This research work analyzes the C-dump converter’s design. The C-Dump converter makes it possible for the phase winding to be rapidly demagnetized and magnetised, which prevents the motor from being used in the generating state. Switched reluctance motors demonstrate a variety of converter topologies for adjusting speed, power, and operation. Additionally, it frequently makes use of the energy that has accumulated in the phase winding and can be returned to the source. Some modified C-Dump converter topologies can utilise this stored energy to bypass the motor’s next phase winding.

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4

Bui, Minh Dinh, Duc Hung Bui, Viet Linh Trieu, and Quoc Vuong Dang. "Improved Torque and Efficiency of Induction Motors by Changing Rotor Structure of Permanent Magnet Assistance Synchronous Reluctance Motors." Journal of Technical Education Science, no. 71A (August 30, 2022): 1–7. http://dx.doi.org/10.54644/jte.71a.2022.1145.

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Many authors have recently studied line start permanent magnet assistance synchronous reluctance. This paper presents a method to improve the electromagnetic torque and efficiency of induction motors of 7.5kW-4P (which consists of 36 stator slots and 40 rotor bars) by changing the design of the permanent magnet assistance synchronous reluctance rotors. This means that permanent magnets will be inserted to the squirrel cage induction motors (induction motors). The electromagnetic torque and efficiency of an induction motor is analyzed and compared with that of the line-start synchronous reluctance motor via a finite element analysis. In addition, the influence of position and length permanent magnets on the electromagnetic torque and efficiency of the line-start synchronous reluctance motor is also considered and simulated. The model of this motor Linh is finally designed with four U layered- magnet rotor to verify the developed method. The development of the method is also validated on the practical induction motor.

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5

Orlova, S., A. Rassõlkin, A. Kallaste, T. Vaimann, and A. Belahcen. "Lifecycle Analysis of Different Motors from the Standpoint of Environmental Impact." Latvian Journal of Physics and Technical Sciences 53, no. 6 (December 1, 2016): 37–46. http://dx.doi.org/10.1515/lpts-2016-0042.

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Abstract Comparative analysis is performed for different motors from the standpoint of damage inflicted by them during their lifecycle. Three types of motors have been considered: the synchronous reluctance motor, the permanent magnet assisted synchronous reluctance motor and the induction motor. The assessment of lifecycle has been made in terms of its four stages: manufacturing, distribution, use and end of life. The results show that the production costs of synchronous reluctance motor are lower compared to that of permanent magnet assisted motors, but due to their low efficiency they exert the greatest environmental impact. The main conclusion is that the assessment made at the early designing stage for the related environmental impact enables its reduction.

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6

Verma, Toran, and Shivani Agarwal. "C-Dump Converter employed with Switched Reluctance Motor." Journal of Futuristic Sciences and Applications 5, no. 1 (2022): 77–85. http://dx.doi.org/10.51976/jfsa.512211.

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Switched reluctance motors are among the finest competitors to induction motors. It is a well-liked choice because of its durability, brevity, straightforward design, and superior torque to mass ratio. This page talks about the C-dump converter's design. The C-Dump converter makes it possible for the phase winding to be rapidly demagnetized and magnetized, which prevents the motor from being used in the generating state. Currents in the stator winding of a switching reluctance motor have a direct impact on the torque generated. A large negative voltage must be offered in order to quickly stop the current while it is working in the demagnetizing phase. This paper analyzes the C-dump converter's design. The C-Dump converter makes it possible for the phase winding to be rapidly demagnetized and magnetized, which prevents the motor from being used in the generating state. Switched reluctance motors demonstrate a variety of converter topologies for adjusting speed, power, and operation. Additionally, it frequently makes use of the energy that has accumulated in the phase winding and can be returned to the source. Some modified C-Dump converter topologies can utilize this stored energy to bypass the motor's next phase winding.

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7

Zribi, Mohamed, and Muthana T. Alrifai. "Robust controllers for variable reluctance motors." Mathematical Problems in Engineering 2005, no. 2 (2005): 195–214. http://dx.doi.org/10.1155/mpe.2005.195.

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This paper investigates the control problem of variable reluctance motors (VRMs). VRMs are highly nonlinear motors; a model that takes magnetic saturation into account is adopted in this work. Two robust control schemes are developed for the speed control of a variable reluctance motor. The first control scheme guarantees the uniform ultimate boundedness of the closed loop system. The second control scheme guarantees the exponential stability of the closed loop system. Simulation results of the proposed controllers are presented to illustrate the theoretical developments. The simulations indicate that the proposed controllers work well, and they are robust to changes in the parameters of the motor and to changes in the load.

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8

Morón, Carlos, Enrique Tremps, Angel Gomez, Alfonso Garcia, and Jose Andrés Somolinos. "Switched Reluctance Motors Control." Key Engineering Materials 605 (April 2014): 247–50. http://dx.doi.org/10.4028/www.scientific.net/kem.605.247.

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A current controlled switched reluctance motor (SRM) drive for variable speed applications with efficiency optimization is presented. A robust, modular and flexible prototyping SRM drives is proposed. It is composed of a power electronic block, a driver board, a measurement and interface board and a DSP controller board. Firing angles are computed online, the turn-on is calculated by means of the Boses rule, and the turn-off is calculated using the general theory of the optimal turn-off angle proposed by Gribble. In steady state operation, tie initial selection of firing angles is fine-tuned by means of an algorithm that minimizes the input power of the drive. A 6/4 switched reluctance motor drive prototype was tested and the experimental results show an improvement in online efficiency, a good steady-state performance and no deterioration in the dynamic response. An efficiency comparison with a commercial vector-controlled induction motor drive of the same size is also included.

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9

Levin, N., V. Pugachev, J. Dirba, and L. Lavrinovicha. "Physical and Technical Energy Problems." Latvian Journal of Physics and Technical Sciences 50, no. 3 (June 1, 2013): 3–11. http://dx.doi.org/10.2478/lpts-2013-0015.

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The paper presents an overview of brushless electric motors used in hand electric tools and household appliances. Analysis of the motor types has shown that synchronous reluctance motors are the most reliable for lowpower drives of such tools and appliances due to their simple design, long service life and low cost of production. Solutions are proposed for significant decrease in the quadrature-axis magnetic flux of the synchronous reluctance motor. The motors are shown to develop the specific electromagnetic torque up to 0.35÷0.4 Nm/kg.

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10

Tariq, Iqra, Raheel Muzzammel, Umar Alqasmi, and Ali Raza. "Artificial Neural Network-Based Control of Switched Reluctance Motor for Torque Ripple Reduction." Mathematical Problems in Engineering 2020 (November 30, 2020): 1–31. http://dx.doi.org/10.1155/2020/9812715.

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Switched reluctance motor is acquiring major attention because of its simple design, economic development, and reduced dependability. These attributes make switched reluctance motors superior to other variable speed machines. The major challenge associated with the development of a switched reluctance motor is its high torque ripple. Torque ripple produces noise and vibration, resulting in degradation of its performance. Various techniques are developed to cope with torque ripples. Practically, there exists not a single mature technique for the minimization of torque ripples in switched reluctance motors. In this research, a switched reluctance motor is modelled and analysed. Its speed and current control are implemented through artificial neural networks. Artificial neural network is found to be a promising technique as compared with other techniques because of its accuracy, reduced complexity, stability, and generalization. The Levenberg–Marquardt algorithm is utilized in artificial neural networks due to its fast and stable convergence for training and testing. It is found from research that artificial neural network-based improved control shows better performance of the switched reluctance motor. Realization of this technique is further validated from its mean square error analysis. Operating parameters of the switched reluctance motor are improved significantly. Simulation environment is created in Matlab/Simulink.

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11

Garcia-Amorós, Jordi. "Linear Hybrid Reluctance Motor with High Density Force." Energies 11, no. 10 (October 18, 2018): 2805. http://dx.doi.org/10.3390/en11102805.

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Linear switched reluctance motors are a focus of study for many applications because of their simple and sturdy electromagnetic structure, despite their lower thrust force density when compared with linear permanent magnet synchronous motors. This study presents a novel linear switched reluctance structure enhanced by the use of permanent magnets. The proposed structure preserves the main advantages of the reluctance machines, that is, mechanical and thermal robustness, fault tolerant, and easy assembly in spite of the permanent magnets. The linear hybrid reluctance motor is analyzed by finite element analysis and the results are validated by experimental results. The main findings show a significant increase in the thrust force when compared with the former reluctance structure, with a low detent force.

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12

Wang, Zhi Gang, Ping Tan, and Sui Chun Qu. "Analysis of Main Dimensions Effects on Performance of Transverse Flux Switched Reluctance Motors." Advanced Materials Research 383-390 (November 2011): 1921–25. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.1921.

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The transverse flux switched reluctance motor (TFSRM) has the advantage of switched reluctance motors and transverse flux motor. This paper examines the effects of the main dimensions such as the polar distance, the stator core, the length of air gap ,etc, on the performance.

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13

Bieńkowski, Krzysztof, Sebastian Łapczyński, Michał Szulborski, Łukasz Kozarek, Karol Gołota, Hubert Cichecki, Łukasz Kolimas, et al. "Validated Analytical Model of 8/6 and 10/8 Switched Reluctance Motors." Energies 15, no. 2 (January 17, 2022): 630. http://dx.doi.org/10.3390/en15020630.

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The aim of this work was to develop a parameterized analytical and FEM (Finite Element Method) model of a switched reluctance motor. The developed analytical model was used to assess the performance of these types of motors, and is determined to be a tool for comparing and evaluating switched reluctance motors of various designs. The aim of the work was also the systematization of knowledge related to the operation, structure and methods of determining the static electromagnetic torque generated by switched reluctance motors. The FEM model (ANSYS) was, also, made in order to verify physical phenomena occurring during operation of these motors. Four laboratory tests were executed as part of the work prototypes of switched reluctance motors built at Warsaw University of Technology. A parameterized analytical model was developed and implemented in MATLAB. The model operation tests were conducted and as a result, the characteristics describing the dependence of the electromagnetic torque as a function of the current and the position of the rotor were obtained. The model was validated by confronting the analytical calculations supported by FEM simulation results with the measurement results. The usefulness of the results obtained with the use of the procured models was assessed.

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14

Thakur, Vishal. "Overview of Electric Scooter operating on Synchronous Reluctance Motor (SynRM)." International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE) 9, no. 6 (June 24, 2022): 1–5. http://dx.doi.org/10.36647/ijermce/09.06.a001.

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this paper deals in research and review of a 3-phase motor inverter to run a designed synchronous reluctance motor which would be used in electric scooters. The synchronous reluctance motor falls in the category of rare earth free magnet motors, yet provides better efficiency and gives straight competition to other AC and DC motors. It also includes designing of swappable battery packs for mobility purposes which offers easy removal and installation of batteries. All the major components which are to be use in electric scooter powertrain have been discussed here.

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15

Mosallanejad, Ali, and Abbas Shoulaie. "Calculation and Measurement of Coil Inductance Profile in Tubular Linear Reluctance Motor and its Validation by Three Dimensional FEM." Journal of Electrical Engineering 62, no. 4 (July 1, 2011): 220–26. http://dx.doi.org/10.2478/v10187-011-0035-x.

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Calculation and Measurement of Coil Inductance Profile in Tubular Linear Reluctance Motor and its Validation by Three Dimensional FEMThis paper reports a study of coil inductance profile in all positions of plunger in tubular linear reluctance motors (TLRMs) with open type magnetic circuits. In this paper, maximum inductance calculation methods in winding of tubular linear reluctance motors are described based on energy method. Furthermore, in order to calculate the maximum inductance, equivalent permeability is measured. Electromagnetic finite-element analysis for simulation and calculation of coil inductance in this motor is used. Simulation results of coil inductance calculation using 3-D FEM with coil current excitation is compared to theoretical and experimental results. The comparison yields a good agreement.

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16

Morimoto, Masayuki, Nobuyuki Matsui, and Yoji Takeda. "Recent Advances of Reluctance Motors." IEEJ Transactions on Industry Applications 119, no. 10 (1999): 1145–48. http://dx.doi.org/10.1541/ieejias.119.1145.

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17

Chan, C. C. "Single-phase switched reluctance motors." IEE Proceedings B Electric Power Applications 134, no. 1 (1987): 53. http://dx.doi.org/10.1049/ip-b.1987.0007.

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18

Alyan, M. A. A. S. "Hunting Characteristics of Reluctance Motors." Journal of King Saud University - Engineering Sciences 1, no. 1-2 (1989): 161–75. http://dx.doi.org/10.1016/s1018-3639(18)30867-5.

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19

Rabinovici, R. "Scaling of switched reluctance motors." IEE Proceedings - Electric Power Applications 142, no. 1 (1995): 1. http://dx.doi.org/10.1049/ip-epa:19951487.

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20

Kazakbaev, Vadim, Safarbek Oshurbekov, Vladimir Prakht, and Vladimir Dmitrievskii. "Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation." Mathematics 9, no. 18 (September 8, 2021): 2196. http://dx.doi.org/10.3390/math9182196.

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The paper compares the economic effect of using capacitors in fixed speed drives of a pumping station when using energy-efficient motors of various types. Induction motors of IE2 and IE3 energy efficiency classes, a direct-on-line synchronous motor with a permanent magnet in the rotor, and a direct-on-line synchronous reluctance motor are considered. The comparison takes into account not only the efficiency of the motors, but also their power factor, on which the losses in the cable and transformer depend. The possibility of using static capacitors to compensate for the reactive power of motors and reduce the losses is also considered. The feasibility analysis takes into account that the motors have different initial costs. The cost of capacitors is also taken into consideration. The analysis shows that the use of static capacitors can have a significant impact on the comparison between different motors in this application. Without considering capacitors, the permanent magnet motor has the shortest payback period, otherwise the synchronous reluctance motor has the shortest payback period.

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21

Heidari, Hamidreza, Anton Rassõlkin, Ants Kallaste, Toomas Vaimann, Ekaterina Andriushchenko, Anouar Belahcen, and Dmitry V. Lukichev. "A Review of Synchronous Reluctance Motor-Drive Advancements." Sustainability 13, no. 2 (January 13, 2021): 729. http://dx.doi.org/10.3390/su13020729.

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Recent studies show that synchronous reluctance motors (SynRMs) present promising technologies. As a result, research on trending SynRMs drive systems has expanded. This work disseminates the recent developments of design, modeling, and more specifically, control of these motors. Firstly, a brief study of the dominant motor technologies compared to SynRMs is carried out. Secondly, the most prominent motor control methods are studied and classified, which can come in handy for researchers and industries to opt for a proper control method for motor drive systems. Finally, the control strategies for different speed regions of SynRM are studied and the transitions between trajectories are analyzed.

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22

Nadjai, Yasmine Ihcene, Hafiz Ahmed, Noureddine Takorabet, and Peyman Haghgooei. "Maximum Torque per Ampere Control of Permanent Magnet Assisted Synchronous Reluctance Motor: An Experimental Study." International Journal of Robotics and Control Systems 1, no. 4 (October 23, 2021): 416–27. http://dx.doi.org/10.31763/ijrcs.v1i4.451.

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In recent times, permanent magnet assisted synchronous reluctance motors (PMaSRM) have been considered as suitable traction motors for electric vehicle applications. In this type of machine, where the share of reluctance torque is more significant than the excitation torque, it is more appropriate to use a control strategy that can fully utilize the reluctance torque. This paper deals with a new structure of permanent magnet-assisted synchronous reluctance motors that was designed and manufactured in a previous study. This paper suggests applying, in a first study, a constant parameter maximum torque per ampere (MTPA) strategy to make a contribution towards the control of such structure that is becoming increasingly attractive in the field of electric transportation. This method is usually used to control interior permanent magnet synchronous motors to minimize the copper losses of the system. Before implementing and simulating this method, the mathematical models of the suggested motor and the inverter are given. An experimental study is conducted on a small-scale 1 kW prototype PMaSRM using a MicrolabBox Dspace to test and examine the proposed control. Simulation and experimental results are presented in this article in order to verify the validity of the developed control strategy.

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23

Shen, Jianxin, Dan Shi, Canfei Wang, Peng Li, Kang Wang, and Mengjia Jin. "Torque ripple analysis for IPM AC motors." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 33, no. 5 (August 26, 2014): 1514–26. http://dx.doi.org/10.1108/compel-09-2013-0294.

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Purpose – The purpose of this paper is to investigate a new cause of torque ripple in interior permanent magnet (IPM) alternating current (AC) motors, which is common but has hardly been studied. The paper also proposes a new method to suppress the total torque ripple. Design/methodology/approach – Besides the well-known cogging torque and mutual torque ripple, a new ripple which exists in the reluctance torque is found. It is verified with both analytical model and finite element analysis. Also, a novel method is proposed to reduce the reluctance torque ripple, with experimental validation. Findings – It is usually said that the winding inductances of an IPM AC motor vary sinusoidally with the rotor position, thus, the d-axis and q-axis inductances are constant, whilst the reluctance torque is smooth. However, in most practical motors, the inductances vary irregularly, causing a significant ripple in the reluctance torque. Moreover, in machine design, it is always desirable to suppress the cogging torque as much as possible. However, in this paper, it is proved that the cogging torque can remain and be used to cancel the reluctance torque ripple. Originality/value – Torque ripple in the IPM AC motors is usually reduced by suppressing the cogging torque and making both back electromotive forces and currents sinusoidal. However, this paper reveals the new cause of the torque ripple due to the irregular variation of winding inductances. Moreover, the paper gives a new method to cancel the reluctance torque ripple with the cogging torque.

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24

Dharne, Akash M., and Prof Lata B. Awale. "Analysis of Switched Reluctance Motor Performance with Different Slot Pole Combinations." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (June 30, 2022): 2158–64. http://dx.doi.org/10.22214/ijraset.2022.44201.

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Abstract: The Switched Reluctance Motors are getting popularity among different applications like electric vehicles and traction due to their simple construction, lower cost and better efficiency. It also have the advantages of low rotor inertia, small size, high pickup, effective and easy cooling etc. Due to its simple structure, switch reluctance motors are mainly used in electric vehicles, vacuum cleaners, washing machines, servo types and variable speed applications. The switch reluctance motor has a rugged structure and is suitable for vibration and high temperature zones. The torque generated by the switch reluctance motor does not depend on the polarity of the phase current. As a result, fewer semiconductor switches are used in power converters. In addition, the losses incurred by SRM motors come only from the stator. Therefore, it can be easily cooled. In this work, the performance of different slot pole combination of SRM is analysed and compared. The Slot poles combinations taken for Analysis are : 6/4, 8/6 and 12/10. The main parameters on which the performance of SRM is compared are Electromagnetic Torque, Torque Ripple and Inductance in Transient Analysis and Output Torque and Power in Steady State Analysis. It is found that with increasing slot pole combination of SRM, the torque ripple decreases and average torque increases.

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25

Li, Xuefei, Chao Duan, Kun Bai, and Zongwei Yao. "Operating Performance of Pure Electric Loaders with Different Types of Motors Based on Simulation Analysis." Energies 14, no. 3 (January 26, 2021): 617. http://dx.doi.org/10.3390/en14030617.

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The electrification of loader designs can utilise several power motor types. Hence, this study investigates the operational performance of pure electric-powered loaders matched with three types of motors. Firstly, for the ZL08 loader, it is proposed that a pure electric-powered loader structure adopts two motors to drive the walking and hydraulic systems separately. Secondly, the dynamic parameters of the two motors were matched, and then, a joint vehicle dynamics model of the control system, the Multi-Body Dynamics (MBD) module and the material Discrete Element Method (DEM) module, was established. Finally, the performance of the walking system with three motors was tested by inserting three materials and using accelerating and climbing methods. The operating performance of the hydraulic system was tested by shovelling and unloading three materials. Results show that when inserting difficult materials, the loader’s walking system with switched reluctance motors is 9.74–21.2% deeper than that with the other two motors and 11.7–56.2% faster at the same depth. The hydraulic system consumes 3–15.7% less energy when matched with a permanent magnet synchronous motor than the other two motors. Pure electric loaders have the best operating performance when the walking system is matched with a switched reluctance motor, and the hydraulic system is matched with a permanent magnet synchronous motor.

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26

Zhao, Song, and Xiao Fei Wang. "A Review of Control Research on Switched Reluctance Generator." Advanced Materials Research 580 (October 2012): 407–10. http://dx.doi.org/10.4028/www.scientific.net/amr.580.407.

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Switched reluctance motor is widely used in industrial and commercial uses, especially in harsh conditions. In this paper, the power generation control strategy of switched reluctance generator are given and analyzed. Five control strategies are as follows: Angle Position Control, Current Chopping Control, PWM Control and Exciting Voltage Control, Full Conducted Current Chopping Control. The simplicity & compactness of switched reluctance motors suggests the possibility using on special environment such as wind power generation.

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27

Rassõlkin, A., A. Kallaste, S. Orlova, L. Gevorkov, T. Vaimann, and A. Belahcen. "Re-Use and Recycling of Different Electrical Machines." Latvian Journal of Physics and Technical Sciences 55, no. 4 (August 1, 2018): 13–23. http://dx.doi.org/10.2478/lpts-2018-0025.

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Abstract The paper discusses the current developments in the recycling of electrical machines. The main attention is devoted to three types of motors: synchronous reluctance motor, permanent magnet assisted synchronous reluctance motor, and induction motor. Base materials of such electrical machines are also described in the paper. Rare-earth permanent magnets used in electrical machines are review separately. Moreover, the paper considers the features of the disassembly and recycling options.

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28

Chowdhury, Juan, Gaurav Kumar, Karuna Kalita, Kari Tammi, and Sashindra K. Kakoty. "A review on linear switched reluctance motor." Rakenteiden Mekaniikka 50, no. 3 (August 21, 2017): 261–70. http://dx.doi.org/10.23998/rm.65121.

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Switched reluctance motors have been extensively studied by researchers for their unparalleled advantages in wide range of applications. The linear versions of it, possessing similar attributes and prospects, have been developed in recent years. Owing to their frugal design, robust built and high force density, the linear switched reluctance motors (LSRM) has had significant stages of development and optimization. The flexibility in design and operation makes LSRM a prime contender for any linear motor-actuator application. This paper provides a bird’s eye view across its developmental stages and its various aspects in design, analysis and control. The following content discusses the salient points of research and the contribution by researchers in this field.

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29

Takahara, Kazuaki, Katsuhiro Hirata, Noboru Niguchi, and Akira Kohara. "Current superimposition variable flux reluctance motor with 8 salient poles." Open Physics 15, no. 1 (December 29, 2017): 857–61. http://dx.doi.org/10.1515/phys-2017-0102.

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AbstractWe propose a current superimposition variable flux reluctance motor for a traction motor of electric vehicles and hybrid electric vehicles, which consists of 10 salient poles in the rotor and 12 slots in the stator. However, iron losses of this motor in high rotation speed ranges is large because the number of salient poles is large. In this paper, we propose a current superimposition variable flux reluctance motor that consists of 8 salient poles and 12 slots. The characteristics of the 10-pole-12-slot and 8-pole-12-slot current superimposition variable flux reluctance motors are compared using finite element analysis under vector control.

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30

Wu, Hong Xing, Qing Jie Sun, Ji Gui Zheng, and Shou Ming Zhou. "Torque Ripple Reduction of Switched Reluctance Motor by Optimizing Stator Pole Type." Applied Mechanics and Materials 494-495 (February 2014): 1395–400. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.1395.

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The torque ripple is the important restriction affecting the promotion and application of switched reluctance motor, the analytic expressions to calculate switched reluctance motors tangential force and radial force are derived in this paper, based on analyzing the cause of switched reluctance motor vibration and torque ripple. By improving the stator poles structure, the torque near the commutation points is compensated, which smooth the wave of air gap magnetic field to reduce torque ripple when the stators and the rotors salient poles coincide. In this paper, three structures that puts wedge angle on both sides of the stator poles is presented, and analysis of torque ripple is made. Studies shows that the right size of wedge angle can effectively inhibit the switched reluctance motor torque fluctuations.

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31

Zhu, Chuanhui, Rujie Lu, Congli Mei, Tao Peng, and Guoqin Zhang. "Design and Simulation Analysis of Stator Slots for Small Power Permanent Magnet Brushless DC Motors." International Transactions on Electrical Energy Systems 2023 (February 16, 2023): 1–19. http://dx.doi.org/10.1155/2023/1152243.

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With the development of power electronics technology, permanent magnet brushless DC motors have developed rapidly and are now widely used in electric vehicles, flywheel energy storage, rail transit, and other applications. The stator slot structure is one of the main factors affecting the performance of the motor. A low-power permanent magnet brushless DC motor was selected as the research object, and the finite element analysis method was used to study the effects of different slot and pole combinations and stator slot types on the cogging torque, reluctance torque, and back electromotive force of the permanent magnet brushless DC motor. The influence of the stator slot structure of the motor on the performance of the motor was analyzed, and the optimal slot-pole combination and stator slot type were determined. The results showed that the cogging torque of the 2-stage 24-slot motor was 14 mN·m, and the reluctance torque was 75 mN·m. The cogging torque and reluctance torque were the smallest, and the back electromotive force waveform was similar to a trapezoidal wave. The motor cogging torque of the pear-shaped round slot was the smallest, with a value of 460 mN·m, and the motor reluctance torque of the pear-shaped trapezoidal slot was the smallest, with a value of 1.2 N·m. The back electromotive force waveforms of the motors with four different stator slot types were similar.

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32

Sun, Yu Kun, Yun Hong Zhou, Yong Hong Huang, and Wei Ran Wang. "Modeling and Radial-Displacement Sensorless Method for a Hybrid-Stator Bearingless Switched Reluctance Motor." Advanced Materials Research 433-440 (January 2012): 2987–90. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.2987.

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A novel hybrid-stator bearingless switched reluctance motor (HSBSRM) was researched. After analyzing magnetic linkage characteristics, its mathematical model was built with finite element method, and a radial displacement self-sensing method was designed. This hybrid stator motor has unique advantages compared with those traditional bearingless switched reluctance motors, so radial displacement self-testing techniques have important research significance and practical value. Simulation and experimental results validated the proposed methods.

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Chen, Ken, Wenfei Yu, and Chuanxin Wen. "Rotor optimization for synchronous reluctance motors." CES Transactions on Electrical Machines and Systems 3, no. 3 (September 2019): 279–84. http://dx.doi.org/10.30941/cestems.2019.00036.

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34

Smirnov, Yu V. "Three-phase electromagnetic switched reluctance motors." Russian Electrical Engineering 80, no. 11 (November 2009): 601–3. http://dx.doi.org/10.3103/s1068371209110042.

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Matsui, Nobuyuki, and Yoji Takeda. "Reluctance Motors-State-of-the-art-." IEEJ Transactions on Industry Applications 118, no. 6 (1998): 685–90. http://dx.doi.org/10.1541/ieejias.118.685.

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Krishnan, R., R. Arumugan, and J. F. Lindsay. "Design procedure for switched-reluctance motors." IEEE Transactions on Industry Applications 24, no. 3 (1988): 456–61. http://dx.doi.org/10.1109/28.2896.

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Hsu, J. S., S. S. P. Liou, and H. H. Woodson. "Peaked-MMF smooth-torque reluctance motors." IEEE Transactions on Energy Conversion 5, no. 1 (March 1990): 104–9. http://dx.doi.org/10.1109/60.50820.

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El-Kader, F. M. Abd, and S. M. Osheba. "Improving Transient Performance of Reluctance Motors." IEEE Power Engineering Review 9, no. 3 (1989): 33–34. http://dx.doi.org/10.1109/mper.1989.4310541.

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Lumsdaine, A., and J. H. Lang. "State observers for variable-reluctance motors." IEEE Transactions on Industrial Electronics 37, no. 2 (April 1990): 133–42. http://dx.doi.org/10.1109/41.52962.

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40

Miller, T. J. E. "Optimal design of switched reluctance motors." IEEE Transactions on Industrial Electronics 49, no. 1 (2002): 15–27. http://dx.doi.org/10.1109/41.982244.

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41

Stephenson, J. M., and M. A. El-Khazendar. "Saturation in doubly salient reluctance motors." IEE Proceedings B Electric Power Applications 136, no. 1 (1989): 50. http://dx.doi.org/10.1049/ip-b.1989.0006.

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42

Oswald, B., K.-J. Best, M. Setzer, M. Söll, W. Gawalek, A. Gutt, L. Kovalev, G. Krabbes, L. Fisher, and H. C. Freyhardt. "Reluctance motors with bulk HTS material." Superconductor Science and Technology 18, no. 2 (December 7, 2004): S24—S29. http://dx.doi.org/10.1088/0953-2048/18/2/006.

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Sargos, F. M., P. Zaskalicky, and E. J. Gudefin. "Structures theory of reluctance step motors." IEEE Industry Applications Magazine 1, no. 3 (1995): 28–32. http://dx.doi.org/10.1109/2943.384663.

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DE JONG*, H. C. J. "CAPACITOR BRAKING OF SYNCHRONOUS RELUCTANCE MOTORS." Electric Machines & Power Systems 21, no. 3 (May 1993): 319–27. http://dx.doi.org/10.1080/07313569308909658.

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Rizk, J., M. H. Nagrial, and A. Hellany. "Design optimisation of switched reluctance motors." Australian Journal of Electrical and Electronics Engineering 1, no. 1 (January 2004): 33–39. http://dx.doi.org/10.1080/1448837x.2004.11464089.

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Petrushin, A. D., and A. V. Kashuba. "Dynamic Optimization of Switched-Reluctance Motors." Russian Engineering Research 38, no. 9 (September 2018): 705–6. http://dx.doi.org/10.3103/s1068798x1809023x.

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47

Mecrow, B. C., J. W. Finch, E. A. El-Kharashi, and A. G. Jack. "Switched reluctance motors with segmental rotors." IEE Proceedings - Electric Power Applications 149, no. 4 (2002): 245. http://dx.doi.org/10.1049/ip-epa:20020345.

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Moron, C., A. Garcia, E. Tremps, and J. A. Somolinos. "Torque Control of Switched Reluctance Motors." IEEE Transactions on Magnetics 48, no. 4 (April 2012): 1661–64. http://dx.doi.org/10.1109/tmag.2011.2173169.

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El-Kader, F. M. A., and S. M. Osheba. "Improving transient performance of reluctance motors." IEEE Transactions on Energy Conversion 4, no. 1 (March 1989): 74–80. http://dx.doi.org/10.1109/60.23153.

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Cao, Wenping, Abid Ali Shah Bukhari, and Lassi Aarniovuori. "Review of Electrical Motor Drives for Electric Vehicle Applications." July 2019 38, no. 3 (July 1, 2019): 525–40. http://dx.doi.org/10.22581/muet1982.1903.01.

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EVs (Electric Vehicles) have been rejuvenated over the last decades while the motor drive technologies are still evolving. This paper provides a review of electrical motor drive technologies used in EV applications, with a performance comparison of candidate machines and their drive topologies. EV applications demand high efficiency, high torque density, high reliability, and wide speed range while reducing weight, complexity, total costs and environmental impact. In the literature, DC (Direct Current) motors, IMs (Induction Motors) and PM (Permanent Magnet) motors can be generally found in marketplace whilst RMs (Reluctance Motors) have been researched for some time and are nearing commercial availability. This paper evaluates the performance of these four main types of electrical motor drives for EV propulsion applications using analytical methods. PM motors may offer the best performance in terms of torque density and compactness but the cost is the highest (primarily dominated by rare-earth permanent magnets), limiting their widespread application in mass production EVs. DC motors have their own merits but suffer from limited power density and necessity for maintenance. Induction motor drives are a mature and proven technology. In particular, squirrel-cage IMs are robust, reliable and inexpensive, striking a balance between system cost and complexity, power density and extended speed range. Reluctance motors can provide a good torque density and cost effective EV drive solutions. Their drawbacks can also be overcome by the use of power electronic converters and advanced control strategies. Induction and reluctance motor drives are well suited for cost sensitive mass production EV applications. Looking to the future, increased hybridization may be a way forward in industry which combines attractive features of different electrical machines and control algorithms and still offer much promise in performance and total cost. At last, reliability study on EVs requires historical information and driving patterns, demanding research expertise in eco-sociology, human behaviors as well as human-machine interface.

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