基于新型扩展卡尔曼的永磁同步电机无位置传感器控制  

Sensorless Control of Permanent Magnet Synchronous Motor Based on New Extended Kalman

作　　者：赵恒 马西沛 范平清 胡鑫洋 ZHAO Heng;MA Xipei;FAN Pingqing;HU Xinyang(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201620

出　　处：《电子器件》2023年第3期724-730,共7页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(52172371);上海汽车工业科技发展基金会产学研项目(1910)。

摘　　要：针对永磁同步电机无位置传感器控制中,因电机受到外界扰动而导致传统扩展卡尔曼观测器不精确的问题,提出了一种新型扩展卡尔曼复合观测器的方法。该方法由新型趋近率设计的滑模控制器代替传统PI调节器的转速环,加入前馈解耦的电流环,以及扩展卡尔曼观测器复合而成。仿真结果表明:无论电机空载启动、或外加扰动等状况下,新型扩展卡尔曼状态观测器可以精确地观测出电机的转速大小与转子位置信息,速度滑模控制器以及电流前馈解耦提高了系统的抗干扰能力,缩短了系统的响应时间。Aiming at the inaccuracy of the traditional extended Kalman observer in the sensorless control of the permanent magnet synchronous motor due to the external disturbance to the motor, a new extended Kalman composite observer method is proposed, which is composed of a sliding mode controller with a new approach rate designed to replace the speed loop of the traditional PI regulator, a current loop with feedforward decoupling, and an extended Kalman observer. The simulation results show that the new extended Kalman state observer can accurately observe the speed and rotor position information of the motor no matter when the motor is started with no load or with external disturbances, the speed sliding mode controller and the current feedforward decoupling improve the anti-interference ability of the system, and the response time of the system is shortened.

关 键 词：永磁同步电机 扩展卡尔曼观测器 滑模控制 电流前馈解耦 复合控制 

分 类 号：TP29[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]