基于PLL系统的永磁同步电机滑模观测器控制系统研究  

Research on the Sliding Model Observer Control System of PMSM Based on PLL System

作　　者：丰飞 邵瑛[1] FENG Fei;SHAO Ying(School of Electrical and Electronic Engineering of Shanghai Institute of Technology,Shanghai 201418 China)

机构地区：[1]上海电子信息职业技术学院电子技术与工程学院,上海201418

出　　处：《自动化技术与应用》2021年第8期6-10,共5页Techniques of Automation and Applications

摘　　要：由于永磁同步电机无位置传感器在传统滑模观测器系统下伴随着高频抖振,因此估算的反电动势中将存在高频抖振现象。在滑模观测器输出反电动势中通入锁相环(PLL)系统来提取转子位置信息,减少转速和转角误差。最后利用Matlab平台提出系统验证,实验表明基于PLL系统的滑模控制系统在一定程度上抑制了高频抖振,在动态性能和精度上比传统滑模观测器有一定提高。Due to the high frequency buffeting of the sensorless PMSM in the sliding film control system, there is high frequency buffeting in the estimated back EMF. In the back EMF, the PLL system is used to extract the rotor position information and reduce the rotation speed and angle error. Finally, the system verification is proposed by using MATLAB platform. The experiment shows that the sliding film control system based on PLL system can suppress the high frequency chattering to a certain extent, and improve the dynamic performance and accuracy compared with the traditional sliding mode observer.

关 键 词：锁相环(PLL) 无位置传感器 永磁同步电机 滑模观测器 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程] TM341[自动化与计算机技术—控制科学与工程]