Overview of multi-phase switched reluctance motor drives for electric vehicles

2021 ◽  
Vol 13 (9) ◽  
pp. 168781402110451
Author(s):  
Shouyi Han ◽  
Kaikai Diao ◽  
Xiaodong Sun
Keyword(s):  
Switched Reluctance Motor ◽  
Torque Ripple ◽  
Torque Control ◽  
Potential Candidate ◽  
Control Methods ◽  
Switched Reluctance ◽  
Reluctance Motor ◽  
Converter Topologies ◽  
Multi Phase ◽  
And Control

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

Direct torque control of switched reluctance motor for minimizing torque ripple

2008 ◽  
Vol 28 (1-2) ◽  
pp. 247-253 ◽  
Author(s):  
Youn-Hyun Kim ◽  
Sol Kim ◽  
Jae-Hak Choi ◽  
Joonseon Ahn ◽  
Chang-Hyun Cho ◽  
...  
Keyword(s):  
Direct Torque Control ◽  
Switched Reluctance Motor ◽  
Torque Ripple ◽  
Torque Control ◽  
Switched Reluctance ◽  
Reluctance Motor

scholarly journals A High-Performance Indirect Torque Control Strategy for Switched Reluctance Motor Drives

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Cunhe Li ◽  
Cunshan Zhang ◽  
Jian Liu ◽  
Dunxin Bian
Keyword(s):  
Control Strategy ◽  
High Performance ◽  
Switched Reluctance Motor ◽  
Torque Ripple ◽  
Torque Control ◽  
Modulation Method ◽  
Switched Reluctance ◽  
Current Controller ◽  
Torque Control Strategy ◽  
Reluctance Motor

This paper proposes a high-performance indirect control scheme for torque ripple minimization in the switched reluctance motor (SRM) drive system. Firstly, based on the nonlinear torque-angle characteristic of SRM, a novel torque sharing function is developed to obtain the optimal current profiles such that the torque ripple is minimized with reduced copper losses. Secondly, in order to track current accurately and indirectly achieve high-performance torque control, a robust current controller is derived through the Lyapunov stability theory. The proposed robust current controller not only considers the motor parameter modeling errors but also realizes the fixed frequency current control by introducing the pulse width modulation method. Further, a disturbance-observer-based speed controller is derived to regulate the motor speed accurately, and the load torque is considered an unknown disturbance. The simulations and experiments on a 1.5 kW SRM prototype are carried out to demonstrate the effectiveness of the proposed high-performance indirect torque control strategy. Results verify the superiority of the proposed strategy with respect to the torque ripple suppression, system efficiency, and antidisturbance.

scholarly journals Control System Design for 16/6/8 Double-Stator Bearingless Switched Reluctance Motor

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Chuanyu Sun ◽  
Hang Yang ◽  
Shangke Han ◽  
Hongchang Ding ◽  
Jiaqing Li ◽  
...  
Keyword(s):  
Control System ◽  
Levitation Force ◽  
Switched Reluctance Motor ◽  
Torque Ripple ◽  
Torque Control ◽  
Strong Nonlinearity ◽  
Loop Control ◽  
Switched Reluctance ◽  
State Process ◽  
Reluctance Motor

The 16/6/8 double-stator bearingless switched reluctance motor (DSBSRM) is used as the object of study in this paper. To solve the problem of torque and levitation force ripples in this motor, a control system direct force control (DFC) and direct instantaneous torque control (DITC) based on the torque sharing function (TSF) are proposed. With the strong nonlinearity and approximation capability of radial basis function neural networks, the torque and levitation force observer are designed. The observed torque and levitation forces are used as feedback for the internal loop control, which is combined with the external loop control to make a double closed-loop control. In order to further improve the output torque and system robustness and suppress the torque ripple in steady-state process, the motor winding method is optimized and a set of switching angles is added on the basis of TSF. The simulation results verify the effectiveness and superiority of the proposed control method. It effectively suppresses speed ripple and reduces torque and levitation force fluctuations and rotor radial displacement jitter.

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