Conduction Angle Control of Switched Reluctance Motor
01 Dec 2020-Vol. 1716, Iss: 1, pp 012011
About: The article was published on 2020-12-01 and is currently open access. It has received 2 citations till now. The article focuses on the topics: Switched reluctance motor.
Citations
More filters
11 Feb 2022
TL;DR: In this paper , an objective comparison of two converter types used with a 4-phase 8/6 switched reluctance motor (SRM) drive after a detailed analysis of its operation by modeling the drive in Simulink/MATLAB environment is presented.
Abstract: This paper presents an objective comparison of two converter types used with a 4-phase 8/6 switched reluctance motor (SRM) drive after a detailed analysis of its operation by modeling the drive in Simulink/MATLAB environment. The converters considered are asymmetrical half bridge converter (AHBC) with two different control strategies namely strategy 1 (st1) and strategy 2 (st2) and variable DC link converter (VDC). The complete system is simulated to assess the performance of the drive under different operating conditions to bring out the effectiveness of these converters and control strategies during both steady-state and dynamic operations. The turn-on and turn-off angles for the phases of the SRM have been chosen judiciously to achieve excellent responses for speed, torque and current. The drive performance, in terms of torque and current pulsations, settling time, etc., has been compared for starting condition, speed and torque perturbations.
1 citations
11 Feb 2022
TL;DR: In this paper , an objective comparison of two converter types used with a 4-phase 8/6 switched reluctance motor (SRM) drive after a detailed analysis of its operation by modeling the drive in Simulink/MATLAB environment is presented.
Abstract: This paper presents an objective comparison of two converter types used with a 4-phase 8/6 switched reluctance motor (SRM) drive after a detailed analysis of its operation by modeling the drive in Simulink/MATLAB environment. The converters considered are asymmetrical half bridge converter (AHBC) with two different control strategies namely strategy 1 (st1) and strategy 2 (st2) and variable DC link converter (VDC). The complete system is simulated to assess the performance of the drive under different operating conditions to bring out the effectiveness of these converters and control strategies during both steady-state and dynamic operations. The turn-on and turn-off angles for the phases of the SRM have been chosen judiciously to achieve excellent responses for speed, torque and current. The drive performance, in terms of torque and current pulsations, settling time, etc., has been compared for starting condition, speed and torque perturbations.
1 citations
References
More filters
19 Aug 2015
TL;DR: In this paper, the design and comparative evaluation for an interior permanent magnet synchronous motor (IPMSM) with distributed winding and concentrated winding, induction motor (IM), and switched reluctance motor (SRM) for an electric vehicle or hybrid electric vehicle (HEV) application is presented.
Abstract: With rapid electrification of transportation, it is becoming increasingly important to have a comprehensive understanding of criteria used in motor selection. This paper presents the design and comparative evaluation for an interior permanent magnet synchronous motor (IPMSM) with distributed winding and concentrated winding, induction motor (IM), and switched reluctance motor (SRM) for an electric vehicle (EV) or hybrid electric vehicle (HEV) application. A fast finite element analysis (FEA) modeling approach is addressed for IM design. To account for highly nonlinear motor parameters and achieve high motor efficiency, optimal current trajectories are obtained by extensive mapping for IPMSMs and IM. Optimal turn- on and turn- off angles with current chopping control and angular position control are found for SRM. Additional comparison including noise vibration and harshness (NVH) is also highlighted. Simulation and analytical results show that each motor topology demonstrates its own unique characteristic for EVs/HEVs. Each motor’s highest efficiency region is located at different torque-speed regions for the criteria defined. Stator geometry, pole/slot combination, and control strategy differentiate NVH performance.
481 citations
TL;DR: In this paper, the authors compare the split ac converter to the asymmetric converter through experiments and demonstrate that the split AC converter is the most advantageous with respect to cost, efficiency, and acoustic noise.
Abstract: Low-cost switched-reluctance-motor (SRM) drive systems are actively sought for high-efficiency home appliances and power tools. Minimizing the number of switching devices has been in power converters that is the main method to reduce drive costs. Single-switch-per-phase converters have been cost effective due to the compactness of the converter package resulting in a possible reduction in their cost. However, some of the single-switch-per-phase converters have the drawbacks that include higher losses and low-system efficiency. In order to overcome these shortcomings, the choice narrows down to the split ac converter through the quantitative analysis in terms of device ratings, cost, switching losses, conduction losses, and converter efficiency. Simulations to verify the characteristics of the converter circuit and control feasibility are presented. The motor drive is realized with a novel two-phase flux-reversal-free-stator SRM and a split ac converter. The efficiency with various loads is numerically estimated and experimentally compared from the viewpoint of subsystem and system in details. The acoustic noise with no load and full load is also compared. The focus of this paper is to compare the considered split ac converter to the asymmetric converter through experiments and demonstrate that the split ac converter is the most advantageous with respect to cost, efficiency, and acoustic noise
92 citations
01 Nov 2004
TL;DR: An innovative four-quadrant switched reluctance motor (SRM) drive with only one controllable switch is realized in this paper, for the first time, in the opinion of the authors.
Abstract: Low-cost motor drives are being sought for high-volume energy-efficient home appliances. Key to the realization of such low-cost motor drives is the reduction of the power electronic converter to the barest in terms of its components, particularly the active devices, finding the motor with the least complexity for manufacturing and a controller that can extract the desired performance from the machine and converter combination. These and other factors such as self-starting, speed control over a wide range, and, most of all, the crowning aspect of four-quadrant operation with a bare minimum number of controllable switches remain as formidable challenges for low-cost motor drive realization. An innovative four-quadrant switched reluctance motor (SRM) drive with only one controllable switch is realized in this paper, for the first time, in the opinion of the authors. The motor drive is realized using a two-phase machine and a single controllable switch converter. The theory and operation of the proposed four-quadrant SRM drive with the proposed control algorithm for its realization are described. The motor drive is modeled, simulated, and analyzed to verify its feasibility for self-starting, speed control, and for four-quadrant operation, and the simulation results are presented. Experimental results confirm the validity of the proposed control algorithm for four-quadrant control of the SRM drive. The focus of the paper is mainly directed toward the control algorithm for realizing the four-quadrant operation of the two-phase SRM drive with a single controllable switch converter.
76 citations
TL;DR: The problem of high-precision position control in switched reluctance motor (SRM) drives is investigated and a four-quadrant control scheme is proposed based on the average torque control method.
Abstract: The problem of high-precision position control in switched reluctance motor (SRM) drives is investigated in this paper. Advanced proportional-integral and proportional-differential controllers for speed and position controls, respectively, are adopted. A gain-scheduling technique is adopted in the speed controller design for providing high dynamic performance and precise position control. In order to improve the set-point tracking, a low-pass filter is included in the position controller. The proposed four-quadrant control scheme is based on the average torque control method. The turn-on and turn-off angles are online determined through simple formulas so as to reduce the torque ripple at an acceptable level over a wide speed range. This is important since the position precision is highly influenced from the motor torque ripple. Experimental results of the SRM dynamic response are presented to verify the theoretical considerations and to demonstrate the effectiveness of the proposed control scheme.
72 citations
TL;DR: In this paper, a robust and intelligent speed ripple reduction approach is proposed, wherein the leading edge of winding current command is modified by adding a compensating component, which is automatically generated from the DC-link negative stroke spikes caused by non-ideal commutation.
Abstract: This study presents the speed ripple and vibration reductions for a switch-mode rectifier (SMR) fed switched reluctance motor (SRM) drive via intelligent current profiling approach. Firstly, the SRM drive with a boost-type SMR front-end is established, which possesses well-regulated DC-link voltage and good AC line drawn power quality. Secondly, the speed ripple generating process of a SRM is explored. Accordingly, a robust and intelligent speed ripple reduction approach is proposed, wherein the leading edge of winding current command is modified by adding a compensating component, which is automatically generated from the DC-link negative stroke spikes caused by non-ideal commutation. Thirdly, a robust current error cancellation control scheme is designed to yield closer current waveform tracking response, and thus the smoother motor developed torque. In outer loop, a robust speed ripple cancellation control scheme is employed to directly reduce the speed ripple. Finally, the commutation shift is applied to further improve the torque sharing characteristics between phases during commutation period and thus reduce the speed ripple and vibration. In addition, the commutation shift also leads to the improved torque per ampere capability of a SRM. Validity of all the proposed control approaches is demonstrated experimentally.
38 citations