基于龙贝格观测器的PMSM无位置传感器控制系统设计

doi:10.16180/j.cnki.issn1007-7820.2020.10.008

摘要/Abstract

摘要：

针对基于低分辨率霍尔位置传感器的永磁同步电机系统在中高速时出现的估算精度低与响应速度慢等问题,在建立永磁同步电机数学模型的基础上,将龙贝格观测器与锁相环结构相结合,提出一种永磁同步电机无位置传感器控制算法。利用MATLAB/Simulink工具搭建控制系统仿真模型验证该控制系统的可行性,并通过搭建基于PAC5232的实物平台对比验证龙贝格观测器相对于霍尔位置传感器的优越性。实验结果表明,该无位置传感器控制系统有效地提高了系统的响应速度和估算精度,使其能够更好地跟踪转子速度以及转子位置信息。

关键词: 龙贝格观测器, 永磁同步电机, 锁相环, 霍尔位置传感器, 无位置传感器控制, PAC5232

Abstract:

Permanent magnet synchronous motor system based on low-resolution Hall position sensor has low estimation accuracy and slow response speed at medium and high speeds. To solve these problems, based on mathematical model of permanent magnet synchronous motor, the Luenberger observer and phase-locked loop are combined to propose a sensorless control algorithm of permanent magnet synchronous motor. The simulation model of the control system is established by MATLAB/Simulink tool to verify the feasibility of the control system. The superiority of the Luenberger observer over the Hall position sensor is verified by building the physical platform based on PAC5232. The experimental results show that the sensorless control system effectively improves the response speed and estimation accuracy of the system, making it to better track the rotor speed and rotor position information.

Key words: permanent magnet synchronous motor, luenberger observer, phase-locked loop, Hall position sensors, sensorless control, PAC5232

中图分类号:

TP273

姚莹,李伟,金海,郭婕. 基于龙贝格观测器的PMSM无位置传感器控制系统设计[J]. 电子科技, 2020, 33(10): 45-50.

YAO Ying,LI Wei,JIN Hai,GUO Jie. Design of Sensorless Control System for PMSM Based on Luenberger Observer[J]. Electronic Science and Technology, 2020, 33(10): 45-50.

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