CAJ | 학술논문

本文根据内置式永磁同步电动机（ IPMSM）的线性磁链模型，以定子电流和线性磁链为状态变量构建磁链滑模观测器，用于从观测磁链中提取位置信息实现无速度传感器控制。观测器中用实际电流与重构电流偏差构建滑模切换面，将得到的等效控制信号经反馈矩阵引入线性磁链模型中，利用磁链误差方程的滤波特性消除抖振分量，得到正弦度高的观测磁链。然后利用锁相环的频率跟踪特性，从磁链观测值中提取转子位置角及转速信息。与传统反电动势滑模观测器相比，无需低通滤波器，提高了位置辨识精度，具有更快的动态响应。仿真和实验验证了该控制方法的有效性。
본문근거내치식영자동보전동궤（ IPMSM）적선성자련모형，이정자전류화선성자련위상태변량구건자련활모관측기，용우종관측자련중제취위치신식실현무속도전감기공제。관측기중용실제전류여중구전류편차구건활모절환면，장득도적등효공제신호경반궤구진인입선성자련모형중，이용자련오차방정적려파특성소제두진분량，득도정현도고적관측자련。연후이용쇄상배적빈솔근종특성，종자련관측치중제취전자위치각급전속신식。여전통반전동세활모관측기상비，무수저통려파기，제고료위치변식정도，구유경쾌적동태향응。방진화실험험증료해공제방법적유효성。
In this paper , a novel flux sliding mode observer was presented , which based on linear flux model of interior permanent-magnet synchronous motor , the state variables are stator current and linear flux , this observer can extract the position information from estimated flux and realize speed sensorless control.The de-viation between actual and reconstructing current was used to build the switching surface of sliding mode ob -server , and then got the equivalent control signal into linear flux model by the feedback matrix.Use the filte-ring features of flux error equation to eliminate chattering component , the estimated flux has a high sine de-gree.Using phase-locked loop frequency tracking characteristics , extract rotor position angle and speed in-formation from the estimated flux.Compared with traditional electromotive force sliding mode observer , the novel flux observer don′t need low-pass filter , and improved the precision of position identification , has fas-ter dynamic response.Simulation and experiment verify the effectiveness of the proposed control method.