摘要
永磁同步电动机(PMSM)是一个多变量、非线性、强耦合的复杂系统,对外界扰动及内部摄动极为敏感,为提高系统鲁棒性,本文引入滑模变结构控制策略(SMC)。根据PMSM调速系统的特点,选择一阶滑模面,选用状态反馈SMC控制方式,并将控制输出经一积分器滤波,按该方案设计的SMC控制器表达式和PI控制一样简单。并在同等条件下对这两种控制器下的调速系统分别进行了仿真和实验研究,结果证明文中所设计的SMC控制器能有效地提高系统的动态性和鲁棒性。
Permanent magnet synchronous motor （PMSM） is a multivariable nonlinear system with strong coupling. It is sensitive to the load and parameter disturbances. In order to improve the robustness of this system, the sliding mode control （SMC） strategies is applied to the PMSM drive system. Based on the algorithm of PMSM, a SMC controller is designed in this paper, which is as simple as PI controller. On the same condition, the two controllers are compared through simulation and experiment research. The results show that the proposed control technique has excellent robustness and dynamic behavior, which gives a good choice for PMSM in regulation and tracking applications.
出处
《电工技术学报》
EI
CSCD
北大核心
2008年第8期29-35,共7页
Transactions of China Electrotechnical Society
关键词
滑模变结构控制
PI控制
永磁同步电动机
动态性
鲁棒性
Sliding mode control, PI control, permanent magnet synchronous motor, dynamic behavior, robustness
