Reduced Torque Ripple based on a Simplified Structure Average Torque Control of Switched Reluctance Motor for Electric Vehicles

2018 ◽  
Author(s):  
Mahmoud Hamouda ◽  
Laszlo Szamel
Keyword(s):  
Electric Vehicles ◽  
Switched Reluctance Motor ◽  
Torque Ripple ◽  
Torque Control ◽  
Switched Reluctance ◽  
Reluctance Motor

scholarly journals Predictive Direct Torque Control of Switched Reluctance Motor for Electric Vehicles Drives

2020 ◽  
Author(s):  
Reyad Abdelfadil ◽  
László Számel
Keyword(s):  
Electric Vehicles ◽  
High Performance ◽  
Direct Torque Control ◽  
Switched Reluctance Motor ◽  
Power Converter ◽  
Torque Control ◽  
Switching Frequency ◽  
Suggested Approach ◽  
Switched Reluctance ◽  
Reluctance Motor

The electrical drive systems utilized in Electric Vehicles (EVs) applications must be reliable and high performance. To providing these specifications, it is essential to design high-efficiency electric motors and develop high-performance controllers. This study introduces direct torque control of Switched Reluctance Motor (SRM) for electric vehicle applications using Model Predictive Control (MPC) technique. The direct torque control using MPC is proposed to maintain the motor torque and motor speed to tracking desired signals with a satisfactory response. In this study, the MPC algorithm was programmed in C- language, and the simulation tests were performed using a non-linear model of 6/4 - 60 kW SRM that is fed with the symmetrical converter. The proposed controller was tested under different load conditions to verify the robustness of the controller, as well as at variable speeds to investigate the tracking performance. Thanks to the proposed method, the SRM torque ripples, stator copper losses, and average switching frequency of the power converter can reduce effectively due to applying a cost function that combines multiple objectives. The obtained outcomes show the effectiveness of the suggested approach compared to conventional direct torque control techniques.

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 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.

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.

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