基于双滑模控制器的开关磁阻电机调速策略  

Speed Control Strategy for Switched Reluctance Motor Based on Dual Sliding Mode Controller

作　　者：任萍 朱景伟 赵燕 刘银萍 荆哲 张书宽 REN Ping;ZHU Jingwei;ZHAO Yan;LIU Yinping;JING Zhe;ZHANG Shukuan(College of Marine Electrical Engineering,Dalian Maritime University,Dalian 116026,Liaoning Province,China;Key Laboratory of Special Machine and High Voltage Apparatus(Shenyang University of Technology),Ministry of Education,Shenyang 110870,Liaoning Province,China)

机构地区：[1]大连海事大学船舶电气工程学院,辽宁省大连市116026 [2]特种电机与高压电器教育部重点实验室(沈阳工业大学),辽宁省沈阳市110870

出　　处：《中国电机工程学报》2024年第11期4501-4512,I0028,共13页Proceedings of the CSEE

基　　金：国家自然科学基金项目(52377037);特种电机与高压电器教育部重点实验室(沈阳工业大学)开放课题(KFKT202209);大连海事大学优秀博士学位论文培育项目(2022YBPY005)。

摘　　要：针对开关磁阻电机(switched reluctance motor,SRM)传统滑模控制方法响应速度慢、抖振大且鲁棒性差的问题,该文提出一种基于双滑模控制器的开关磁阻电机调速策略。首先,设计全局积分滑模速度控制器(global integral sliding model speed controller,GISMSC),消除系统到达滑模面的过程,提高响应速度和鲁棒性,并通过改进趋近律来减小滑模抖振;其次,设计扰动滑模观测器(disturbance sliding mode observer,DSMO),对负载和未知扰动进行观测,并前馈补偿至全局积分滑模速度控制器中,进而复合构成双滑模速度控制器,并将其作为速度外环与模型预测控制(model predictive control,MPC)相结合,减小转矩脉动的同时提升其调速性能;最后,仿真和实验考虑到转速和负载突变以及电机参数失配等情况,结果表明,所提方法不仅提高了系统调速性能,减小了转矩脉动,而且克服了电机内部参数变化和外部扰动的影响,使系统具备更强鲁棒性。In view of the problems of slow response speed,large chattering and poor robustness of the traditional sliding mode control(SMC)method of switched reluctance motor(SRM),a speed control strategy for switched reluctance motor based on dual sliding mode controller is proposed in this paper.First,the global integral sliding mode speed controller(GISMSC)is designed to eliminate the process of reaching the sliding mode surface,improve the response speed and robustness,and reduce sliding mode chattering by improving the reaching law.Second,the disturbance sliding mode observer(DSMO)is designed to observe the load and unknown disturbances and feed-forward compensation to the above GISMSC,and then a dual sliding mode speed controller is composed,which is combined with model predictive control(MPC)as the outer speed loop to reduce torque ripple and improve speed control capability.Finally,the simulations and experiments take into account the sudden changes in speed and load as well as the mismatch of motor parameters.The results have indicated that the proposed method not only improves the speed control performance of SRM system,and reduces torque ripple,but also overcomes the influence of internal motor parameters changes and external disturbances so as to make the system have a stronger robustness.

关 键 词：开关磁阻电机 全局积分滑模速度控制器 扰动滑模观测器 模型预测控制 

分 类 号：TM352[电气工程—电机]