摘要
为了改善机械结构中PMSM控制系统的可靠性和鲁棒性,研究了一种基于单电流传感器的PMSM复合滑模控制策略。设计基于ESO的电流观测器,实现对PMSM相电流的准确重构,简化了系统的结构,增强了电动机运行可靠性。设计负载转矩观测器与积分滑模控制构成复合滑模速度控制器,能够有效跟踪实际负载转矩的变化,提高系统的抗扰能力,采用新型趋近律,改善了系统的动静态性能。仿真及实验结果证明了系统具有良好控制精度。
In order to improve the reliability and robustness of PMSM control system,a PMSM compound sliding mode control strategy based on single current sensor is studied.A current observer based on ESO is designed to reconstruct the phase current of PMSM accurately,simplify the structure of the system and enhance the reliability of the motor.The load torque observer and integral sliding mode control are designed to form a compound sliding mode speed controller,which can effectively track the change of actual load torque,improve the anti-disturbance ability of the system,and adopt a new reaching law to improve the dynamic and static performance of the system.Simulation and experimental results show that the system has good control accuracy.
作者
王润
WANG Run(Xinxiang Career Technical College,Xinxiang 453000,CHN)
出处
《制造技术与机床》
北大核心
2019年第10期107-111,共5页
Manufacturing Technology & Machine Tool
关键词
滑模控制
电动机控制
鲁棒性
电流观测器
sliding mode control
motor control
robustness
current observer
作者简介
第一作者:王润,女,1972年生,硕士研究生,高级讲师,研究方向为高频电子技术、汽车电气设备和汽车检测技术。
