基于自适应滑模控制器的PMSM调速策略研究  

Research on PMSM Speed Control Strategy Based on Adaptive Sliding Mode Controller

作　　者：王要强[1,2] 王秋旭 聂福全 张晓光[4] 梁军[1,5] WANG Yaoqiang;WANG Qiuxu;NIE Fuquan;ZHANG Xiaoguang;LIANG Jun(School of Electrical and Information Engineering,Zhengzhou University,Zhengzhou 450001,China;Henan Engineering Research Center of Power Electronics and Energy Systems,Zhengzhou 450001,China;School of Mechanical and Electrical Engineering,Henan Institute of Science and Technology,Xinxiang 453400,China;School of Electrical and Control Engineering,North China University of Technology,Beijing 100144,China;School of Engineering,Cardiff University,Cardiff CF 243AA,UK)

机构地区：[1]郑州大学电气与信息工程学院,河南郑州450001 [2]河南省电力电子与电力系统工程技术研究中心,河南郑州450001 [3]河南科技学院机电学院,河南新乡453400 [4]北方工业大学电气与控制工程学院,北京100144 [5]卡迪夫大学工程学院,英国卡迪夫CF243AA

出　　处：《郑州大学学报（理学版）》2025年第1期88-94,共7页Journal of Zhengzhou University:Natural Science Edition

基　　金：国家自然科学基金项目(51507155);河南省重点研发与推广专项项目(222102520001)。

摘　　要：为了提高永磁同步电机的调速性能,滑模控制逐渐取代PI控制被引入控制系统中。但是传统滑模控制中趋近律的趋近速度慢与固有抖振问题制约着滑模控制的发展,为此提出一种改进的滑模趋近律。首先,为了解决传统等速趋近律中趋近速度和抖振难以平衡的问题,在所提趋近律中引入系统状态变量,并在滑模增益中引入指数项,使其在保证趋近速度的同时抑制滑模抖振。其次,由于开关函数在零点附近具有不连续的特性,会引起滑模抖振,为此采用sat函数代替常规开关函数,能够在保证响应速度的前提下抑制滑模抖振。然后,基于所提趋近律,设计永磁同步电机的滑模速度控制器。最后,仿真和实验结果表明,所提趋近律可以提高永磁同步电机调速系统的控制性能。In order to improve the speed regulation performance of PMSM,sliding mode control was gradually introduced into the control system instead of PI control.However,the development of sliding mode control was constrained due to the slow approaching speed and inherent chattering issues of the approach law in traditional sliding mode control.Therefore,an improved sliding mode approach law was proposed.Firstly,in order to solve the problem of difficult balance between approaching speed and chattering in traditional constant velocity approaching laws,the system state variable was introduced in the proposed approaching law,and an exponential term was introduced in the sliding mode gain to ensure the approaching speed while suppressing sliding mode chattering.Secondly,due to the discontinuous nature of the switching function near to zero,it could cause sliding mode chattering problem.Therefore,the conventional switching function was replaced by the sat function,achieving the goal of suppressing sliding mode chatter while ensuring response speed.Then,based on the proposed approach law,a sliding mode speed controller for permanent magnet synchronous motors was designed.Finally,simulation and experimental results indicated that the proposed approach law could improve the control performance of the permanent magnet synchronous motor speed control system.

关 键 词：永磁同步电机 滑模控制 自适应趋近律 sat函数 系统状态量 

分 类 号：TM341[电气工程—电机]