最优PI调节器参数的无位置IPMSM滑模观测器  

Sliding Mode Observer for Sensorless IPMSM Based on Optimal PI Controllers Parameters

作　　者：宋建国 张晨浩 苗世亮 SONG Jian-guo;ZHANG Chen-hao;MIAO Shi-liang(Beijing University of Technology, Beijing 100124, China)

机构地区：[1]北京工业大学信息学部

出　　处：《电力电子技术》2019年第6期42-45,共4页Power Electronics

摘　　要：在此提出了一种改进无传感器内置式永磁同步电机(IPMSM)的滑模观测器性能方法。最优比例积分(PI)控制器参数的设计不仅是整个系统稳定的前提,也是位置估计的必要条件。特别是在极限条件下,控制器的饱和会影响位置估计的精度,导致整个系统不平衡。该方法针对IPMSM矢量控制的闭环结构,构建了电流环传递函数模型,并计算最优PI控制器参数。在此基础上,滑模观测器的性能得到改善。根据模型仿真结果,说明了该方法可行。A method to improve the performance of the sliding observer of a sensorless interior permanent magnet syn chronous motor(IPMSM) is presented.The design of the optimal proportional integral(PI) controller parameters is not only a prerequisite for the stability of the entire system, but also a necessary condition for position estimation. Espe - cially under extreme conditions, the saturation of the controller will affect the accuracy of the position estimation, re sulting in an imbalance of the entire system.The current loop transfer function model is constructed for the closed loop structure of vector control of IPMSM , and calculates the optimal PI controller parameters.On this way , the perfor mance of the sliding observer is improved.The simulation results show that the method is feasible.

关 键 词：内置式永磁同步电机 滑模观测器 控制器 

分 类 号：TM351[电气工程—电机]