基于改进滑模控制策略的开关磁阻电机直接瞬时转矩控制方法

doi:10.19595/j.cnki.1000-6753.tces.220424

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Abstract The direct instantaneous torque control strategy of switched reluctance motor based on the traditional sliding mode control method has the problems of large chattering and long dynamic time. Also, the load torque must be observed in real time when the mechanical equation obtains reference torque. In order to solve the above problems, a direct instantaneous torque control strategy based on an improved sliding mode control method is proposed. Based on the traditional sliding mode surface and sliding mode approach rate, the state variable is introduced to reduce the torque fluctuation and dynamic process adjustment time of the motor under different working conditions. In order to effectively avoid the real-time calculation of the load torque, the system change caused by load disturbance is mapped to the evolution of the sliding mode surface. The adaptive law of the observed load disturbance is introduced into the sliding mode controller, and the system chattering is suppressed when the load torque and motor speed change. In addition, the dynamic response of the system is improved. The stability of the improved sliding mode controller is proved by the Lyapunov function. Simulations and experiments are carried out, and the results show that the method has good performance under steady-state, variable speed, and load conditions.

Key words： Switched reluctance motor (SRM) improved sliding mode control direct instantaneous torque control adaptive law

Received: 25 March 2022

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TM352

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	Articles by authors
	Han Guoqiang
	Lu Zhe
	Wu Menglin
	Yu Dongsheng

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Han Guoqiang,Lu Zhe,Wu Menglin等. Direct Instantaneous Torque Control Method for Switched Reluctance Motor Based on an Improved Sliding Mode Control Strategy[J]. Transactions of China Electrotechnical Society, 2022, 37(22): 5740-5755.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.220424 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I22/5740

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