摘要
由于永磁同步电机系统采用常规PI控制器易受到自身系统参数不匹配和系统外界扰动的影响,难以达到期望的控制效果。针对上述问题,提出了一种滑模速度控制器,来提高系统的鲁棒性和改善系统的动态响应,并在滑模控制器中引入自适应控制算法来抑制系统参数变化和系统扰动给系统带来的影响,削弱滑模速度控制器中的高频抖振。采用矢量控制策略在MATLAB仿真平台上对滑模速度控制器的性能进行了分析,研究结果表明,提出的控制器可以改善永磁同步电机的动态性能,有效抑制高频抖振,提高系统的鲁棒。
Because the permanent magnet synchronous motor system uses the conventional PI controller, it is easy to be affected by the parameter mismatch and the external disturbance of its own system, and it is difficult to achieve the desired control effect. Focusing on the above mentioned problem, a slide mode speed controller was proposed to improve the robustness and the dynamic response of the system. And the adaptive control algorithm in the slide mode controller was introduced, to suppress the effect of the change of system parameters and the disturbance of the system on the system, and attenuate the high frequency chattering in slide mode speed controller. A vector control strategy was used to analyze the performance of slide mode speed controller on MATLAB simulation platform. The results show that the proposed controller can improve the dynamic performance of permanent magnet synchronous motor, effectively suppress the high frequency chattering and improve the robustness of the system.
出处
《计算机仿真》
CSCD
北大核心
2016年第12期380-384,共5页
Computer Simulation
关键词
永磁同步电机
滑模自适应控制
矢量控制
抖振
Permanent magnet synchronous motor
Slip form adaptive controller
Vector control
Chattering
