基于改进Super-Twisting算法和电流预测的PMSM调速控制  

PMSM Speed Control Based on Improved Super-Twisting Algorithm and Current Prediction

作　　者：温超[1] 邱楠 WEN Chao;QIU Nan(School of Locomotive and Vehicle Engineering,Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连交通大学机车车辆工程学院,大连116028

出　　处：《自动化与仪表》2024年第7期129-133,共5页Automation & Instrumentation

摘　　要：针对永磁同步电机传统PI控制器存在响应速度慢、控制精度低、鲁棒性差等问题,该文提出一种改进调速控制方案。首先,将全局快速积分型终端滑模理论与广义Super-Twisting算法相结合,基于Anti-Windup原理设计改进广义Super-Twisting积分终端滑模速度控制器,并采用新型分段指数函数优化控制律;其次,设计改进扩展扰动观测器对系统未知扰动进行前馈补偿;最后,在电流环引入无差拍电流预测控制器,进一步改善系统的动态响应。仿真结果表明,所提出的改进控制方案能够有效提高调速系统的动态控制性能、控制精度和鲁棒性。In response to issues such as slow response speed,low control accuracy,and poor robustness in the traditional PI controller for permanent magnet synchronous motors,this paper proposes an improved speed control scheme.Firstly,the global fast integral sliding mode theory is integrated with the generalized Super-Twisting algorithm.Based on the Anti-Windup principle,an improved generalized Super-Twisting integral sliding mode velocity controller is designed,incorporating a novel segmented exponential function to optimize the control law.Secondly,an improved extended disturbance observer is designed to provide feedforward compensation for unknown disturbances in the system.Finally,a no-derivative current prediction controller is introduced into the current loop to further enhance the system’s dynamic response.Simulation results demonstrate that the proposed improved control scheme effectively enhances the dynamic control performance,control accuracy,and robustness of the speed control system.

关 键 词：永磁同步电机 滑模控制器 Super-Twisting 扩展扰动观测器 电流预测 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TM341[自动化与计算机技术—控制科学与工程]