IPMSM全速域无传感器控制切换策略研究  

Research on Full-speed Sensorless Control Switching Strategy of IPMSM

作　　者：李孝银 常九健 LI Xiaoyin;CHANG Jiujian(Automotive Engineering Institute of Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学汽车工程技术研究院,合肥230009

出　　处：《微电机》2023年第4期56-62,共7页Micromotors

基　　金：“安徽省新能源汽车暨智能网联汽车创新工程,面向智能网联汽车的全线控底盘开发及测试验证(IMIZX2019005)”项目资助。

摘　　要：为了实现内置式永磁同步电机(IPMSM)全速域无传感器控制,提出了一种光滑连续的三次函数比例切换策略。采用改进脉振高频电压注入法结合优化的滑模观测器法,实现IPMSM零低速和中高速范围转子位置、转速估计;提出从切换比例系数导数有无突变的角度考虑速度切换平顺性,并设计了无切换比例导数突变的三次函数比例切换策略,优化全速域无传感器控制算法切换平顺性,最终实现对IPMSM全速域内的无传感器控制。利用Matlab/Simulink软件对提出的无传感器控制切换策略进行仿真研究,其结果表明:与传统控制策略相比,提出的无传感器控制切换策略能够提高转子位置和转速估计精度,提升切换平顺性和系统动态性能。In order to realize full speed sensorless control of IPMSM,a smooth and continuous cubic function proportional switching strategy was proposed.Using the improved pulse high frequency voltage injection method and the optimized sliding mode observer method to estimate the rotor position and speed in the range of zero low speed and medium high speed for IPMSM;Considering the smoothness of speed switching from the point of view of whether the derivative of switching proportional coefficient has mutation or not,a cubic function proportional switching strategy without mutation of switching proportional derivative was designed to optimize the switching smoothless of control algorithms,and finally realize the sensorless control in the full speed domain of IPMSM.Using matlab/simulink software to simulate the proposed sensorless control algorithm,which shows that compared with the traditional control strategy,the proposed sensorless control switching strategy can improve the estimation accuracy of rotor position and speed,and improve the switching comfort and dynamic performance of the system.

关 键 词：内置式永磁同步电机 无传感器控制 平滑切换策略 滑模观测器 

分 类 号：TM351[电气工程—电机] TM341[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]