摘要
针对永磁同步电机(PMSM)矢量控制系统,设计了一种积分时变滑模变结构的速度环控制器,解决了传统PID控制器鲁棒性差、系统抗扰能力弱和动态响应性能不佳的问题。在滑模面的设计中引入误差信号的积分项,避免控制量中对加速度信号的要求,增强系统的抗干扰能力;同时引入时变项,在保证系统全局稳定的前提下提高了滑模面的收敛速度。在基于DSP的PMSM实验平台上进行实验,结果表明,所提出的积分时变滑模控制方法能够实现精确的速度控制,与传统的PID控制方法相比,能够更好、更快地跟踪给定速度信号。
In this paper the speed regulator based on sliding mode control strategies is used in the vector control of permanent magnet synchronous motor（PMSM） system.An integral and exponential time-varying sliding mode controller is proposed,which can avoid the problems of weak robustness and poor performance of dynamic response.The integral of speed error is introduced into sliding surface to avoid the requirements of the acceleration signal and enhance the system＇s anti-jamming capability.Then the time-varying term is introduced to improve the convergence speed of the sliding surface in the context of ensuring global stability of the system.Experimental results obtained from PMSM control system experimental platform show that the integral time-varying sliding mode control achieves a precise speed control.Compared with PID traditional methods,the proposed sliding mode controller has better and faster tracking performance.
出处
《电工技术学报》
EI
CSCD
北大核心
2011年第6期56-61,共6页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(10872030)
