基于变增益滑模控制器的PMSM矢量控制系统

摘要

The existence of chattering in sliding mode control（SMC） has great impact to the permanent magnet synchronous motors（PMSM） control system performance. In this paper, an improved scheme of integral SMC is proposed based on a variable gain, which can improve the dynamic performance of PMSM control systems. Simulation results show that the scheme can reduce chattering and has better ability of anti-interference. It can also improve the response speed of the system.%滑模控制（SMC）存在的抖振对系统的性能具有较大影响。在滑模控制器永磁同步电动机（PMSM）矢量控制系统基础上，引入变增益控制，提出一种变增益滑模控制器控制方法，较好地改善了系统的动态性能。仿真试验结果表明，该方法有效地抑制了抖振，具有更好的抗负载扰动能力，提高了系统快速性。