基于三阶3类锁相环的PMSM无传感器控制  

PMSM Sensorless Control Based on Third-order Type 3 Phase-locked Loop

作　　者：李海剑 易映萍[1] 石伟 LI Hai-jian;YI Ying-ping;SHI Wei(School of Optical-electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Xu Ji Power Co.,Ltd.Xuchang 461000,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海杨浦200093 [2]许继电源有限公司,河南许昌461000

出　　处：《控制工程》2020年第9期1553-1559,共7页Control Engineering of China

基　　金：青年科学基金项目(51707121)。

摘　　要：在基于观测器的永磁同步电机无传感器控制系统中,通过观测器估算得到反电动势后,通过转子位置跟踪环节获取转子位置和转速信息。使用二阶锁相环作为位置跟踪器的情况下,在电机加减速或突发扰动时,动态跟踪误差可能过大,导致系统鲁棒性和稳定性急剧下降。鉴于此,改用三阶3类锁相环,通过合理配置锁相环系统零极点,可快速有效消除电机运行中的动态跟踪误差,同时使系统具有良好稳定性和鲁棒性。仿真分析和实验结果均表明该方法的正确性和可行性。In a permanent magnet synchronous motor sensorless control system based on an observer,the rotor position tracking link is used to obtain the rotor position and velocity information after the back-EMF is estimated.When using a second-order PLL to track the rotor position,if the observer gain is selected to be smaller,the dynamic tracking error will increase when the motor accelerates or decelerates.The robustness of the system during the disturbance will drop sharply and even enter into an unstable state.For this problem,through the rational design of the third-order type 3 phase-locked loop,the dynamic tracking error during acceleration and deceleration of the motor can be quickly and effectively eliminated,and the system has good stability and robustness.Simulation analysis and experimental results show the correctness and feasibility of the method.

关 键 词：永磁同步电机 无传感器控制 三阶3类锁相环 扰动观测器 

分 类 号：TM341[电气工程—电机]