PMSM双闭环平滑非奇异终端滑模控制  

Double closed-loop smooth non-singular terminal sliding mode control of PMSM based on anti-windup method

作　　者：王艳敏[1] 牛子铭 买永锋 葛杨 WANG Yan-min;NIU Zi-ming;MAI Yong-feng;GE Yang(School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001

出　　处：《电机与控制学报》2020年第3期138-146,共9页Electric Machines and Control

基　　金：国家自然科学基金(51307035,61673132)。

摘　　要：针对传统滑模控制中高频切换控制特性不适用于永磁同步电机的双闭环矢量控制的问题,针对PMSM转速控制系统,提出一种基于鲁棒微分估计器的新型平滑非奇异终端SMC方法,理论上可完全克服抖振现象对PMSM的性能影响,提高系统的动静态特性。同时考虑到PMSM控制系统的非线性饱和特性造成的Windup现象,借鉴Anti-reset Windup PI控制,将转速SNTSM控制器的输入与输出电流之差作为反馈信号,克服Windup现象诱发的超调量、动静态性能变差等影响。基于李雅普诺夫稳定性理论,证明控制器的稳定性。通过仿真和实验验证所提控制方法的可行性和有效性,实现将SMC应用于PMSM的双闭环控制系统中,解决了交轴最大电流限幅造成的Windup问题,响应速度、无超调量、鲁棒性等性能得到优化。The traditional sliding mode control( SMC) is not suitable for the double closed-loop vector control of permanent magnet synchronous motors( PMSM),due to its high-frequency switching control characteristics. For the speed control system of PMSM,a smooth double closed-loop non-singular terminal sliding mode( SNTSM) control scheme based on a robust differential estimator is proposed. It could realize the free-chattering SMC,overcome the influences of chattering problem on PMSM and improve the robustness and the response speed of the system. Focused on the windup phenomenon caused by nonlinear saturation characteristics of PMSM system,the difference between the input current and output current of speed SNTSM controller was taken as a feedback signal,as Anti-reset Windup PI controller does,to overcome the influence such as overshoot,bad dynamic and static performances. Based on the Lyapunov theorem,the stability of controllers was proved. Simulation and experiment results proved the proposed method.

关 键 词：滑模控制 永磁同步电机 非奇异终端滑模控制 抖振 WINDUP 

分 类 号：TM351[电气工程—电机]