基于渐近趋近律的永磁同步电机滑模控制研究  

Research on Sliding Mode Control of PMSM Based on Asymptotic Reaching Law

作　　者：潘雄杰 赵世伟[1] 杨向宇[1] 肖盼盼 PAN Xiongjie;ZHAO Shiwei;YANG Xiangyu;XIAO Panpan(School of Electric Power,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学电力学院,广州510640

出　　处：《微特电机》2022年第5期57-61,67,共6页Small & Special Electrical Machines

基　　金：广东省自然科学基金项目(2018A0303130221)。

摘　　要：为提高永磁同步电机调速系统的动态品质,克服传统指数趋近律快速性和抖振严重的矛盾,提出一种新型滑模渐近指数趋近律,将系统状态变量趋近速度与滑模面切换函数相关联,实现趋近速率自适应调整,提高系统滑模趋近速度,并对滑模控制抖振进行有效抑制。基于该渐近趋近律设计PMSM滑模速度控制器,并与传统指数趋近律、PI控制器分别进行比较。仿真和实验结果表明,所提方法能显著改善系统调速性能,有效提高系统动态、稳态品质,增强抗扰动能力。In order to improve the dynamic quality of permanent magnet synchronous motor speed regulation system and overcome the contradiction between rapidity and severe chattering of the traditional exponential reaching law,a new sliding mode asymptotic exponential reaching law was proposed,which associated the approaching speed of the system state variable with the switching function of the sliding mode surface,realized the adaptive adjustment of the approaching speed,improved the approaching speed of the sliding mode of the system,and effectively suppressed chattering of the sliding mode control.Based on the asymptotic reaching law,the PMSM sliding mode speed controller was designed and compared with the traditional exponential reaching law and PI controller respectively.Simulation and experimental results show that the proposed method can obviously improve the speed regulation performance of the system,effectively improve the dynamic and steady-state quality of the system and enhance the robustness.

关 键 词：永磁同步电机 渐近趋近律 滑模控制 抑制抖振 调速 

分 类 号：TM351[电气工程—电机]