Research on Torque Impulse Balance Control Strategy of Fault Tolerant Flux Switching Permanent Magnetic Motor under Combined Open and Short Circuit Faults
Gu Hui, Wang Yu
College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing 211106 China
Abstract：In order to improve the reliability of the fault tolerant flux switching permanent magnet (FTFSPM) machine drive system, the open and short circuit combination faults of the motor windings are analyzed from the perspective of constant amplitude of stator flux linkage. The flux linkage compensation is performed for the normal current loss of the winding and short-circuit current disturbance, thereby achieving fault-tolerant control of the motor. However, the dynamic performance of the speed is affected by the PI parameters of the speed loop in the traditional direct torque control. Hence, a direct torque control strategy based on the torque impulse balance control is proposed. According to the principle that the value of the torque impulse is balanced, the response time of the system to send the forward vector and the back vector is derived, so that the dynamic performance of the motor after the fault tolerance of the combined fault is optimized. The torque impulse balance control of the motor under the combined faults is realized by simulation and experiments. The dynamic response under different combined faults is compared, and the validity and effectiveness of the proposed algorithm are verified.
顾惠, 王宇. 开路及短路组合故障下容错型永磁磁通切换电机转矩冲量平衡控制策略的研究[J]. 电工技术学报, 2020, 35(9): 1931-1944.
Gu Hui, Wang Yu. Research on Torque Impulse Balance Control Strategy of Fault Tolerant Flux Switching Permanent Magnetic Motor under Combined Open and Short Circuit Faults. Transactions of China Electrotechnical Society, 2020, 35(9): 1931-1944.
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2020, Vol. 35 
