基于改进ESO的PMSM滑模自抗扰控制研究  

Sliding Mode Active Disturbance Rejection Control for PMSM Based on Improved ESO

作　　者：陈彤 蒋强 金博丕 吴治国 CHEN Tong;JIANG Qiang;JIN Bopi;WU Zhiguo(Shenyang Ligong University,Shenyang 110159,China;Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110016,China;Shenyang Jianzhu University,Shenyang 110168,China)

机构地区：[1]沈阳理工大学自动化与电气工程学院,沈阳110159 [2]中国科学院沈阳自动化研究所机器人学国家重点实验室,沈阳110016 [3]沈阳建筑大学电气与控制工程学院,沈阳110168

出　　处：《微电机》2024年第12期40-46,共7页Micromotors

基　　金：辽宁省教育厅重点基金项目(LG202014)。

摘　　要：针对永磁同步电机(PMSM)伺服系统的电流环在传统PI控制下受到干扰,参数变化等因素影响时易发生抖振,鲁棒性变差导致系统性能下降的问题,提出一种改进的滑模自抗扰控制策略。首先,针对传统自抗扰控制中fal函数在原点周围不平滑,易引起抖振的问题,设计新的fal函数;其次,为减少待调节参数数量,设计一种新型趋近律和新型控制函数,并采用Lyapunov函数对所提的新型趋近律进行了稳定性分析,引入扩张状态观测器得到新型滑模扩张状态观测器。搭建Simulink仿真模型进行仿真实验。结果表明,与传统PI控制、自抗扰控制相比,所设计SM-ADRC在简化参数整定的同时,有更好的抗干扰能力和控制精度,有效保证系统的鲁棒性。To solve the problem that the current loop of permanent magnet synchronous motor(PMSM)servo system was prone to buffeting when it was affected by interference and parameter change under traditional PI control,and the system performance deteriorates due to poor robustness,an improved sliding mode active disturbance rejection control strategy was proposed.Firstly,a new fal function was designed to solve the problem that the fal function was not smooth around the origin in traditional active disturbance rejection control,which was easy to cause buffeting.Secondly,in order to reduce the number of parameters to be adjusted,a new approach law and a new control function were designed.The stability of the new approach law was analyzed by using Lyapunov function,and a new sliding mode extended state observer was obtained by introducing an extended state observer.Simulink simulation model was built for simulation experiment.The results show that,compared with the traditional PI control and active disturbance rejection control,the designed SM-ADRC has better anti-interference ability and control accuracy while simplifying parameter tuning,which effectively ensures the robustness of the system.

关 键 词：永磁同步电机 滑模自抗扰控制 fal函数 新型趋近律 新型控制函数 

分 类 号：TM351[电气工程—电机] TM341[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]