基于滑模控制的永磁同步电机调速系统的仿真与研究

Permanent Magnet Synchronous Motor Governing System Based on Sliding Mode Control

永磁同步电机是一个具有多变量、强耦合、非线性等特点的复杂系统,对于参数变化和外界干扰带来的影响都比较敏感。传统的PI控制胜在简单易行,虽然一直以来都被广泛应用于该系统,但是缺点就在于其不能满足高性能系统的种种需求。将滑模变结构引入该调速系统,再结合一般滑模状况下对于求取控制量一定要整定参数的复杂问题,运用趋近律法设计变参数滑模变结构的控制方法,介绍了控制器的设计办法,并对设计的系统进行仿真实验。结果表明:设计的控制器使系统响应更快,稳定性更强,并说明该方案的可行性。

The Permanent Magnet Synchronous Motor is a multi-variable,strong coupling and nonlinear complex system.It is more sensitive to parameter variations and external disturbances.Though traditional PI control is very simple and widely used,it can not meet the needs of high-performance systems.This paper lead sliding mode control into the PMSM control system.Based on the complex problem of tuning parameters under the general condition combined with reaching law control,this paper introduce the approach and simulation of the controller design.