CAJ | 학술논문

为实现永磁同步电机无位置传感器控制，推导了基于Sigmoid函数滑模观测器的转子位置估算算法，并利用Lyapunov稳定性分析方法得到滑模观测器进入滑模面的一个充分条件。实验结果表明：在选择合适的k和a时，利用基于Sigmoid函数滑模观测器的永磁同步电动机无位置传感器控制，能够在不同的速度和负载条件下保证估算的精度并消除抖振，但是在负载条件下需要对估算位置进行补偿，且补偿值和负载时的电流值成正比。
위실현영자동보전궤무위치전감기공제，추도료기우Sigmoid함수활모관측기적전자위치고산산법，병이용Lyapunov은정성분석방법득도활모관측기진입활모면적일개충분조건。실험결과표명：재선택합괄적k화a시，이용기우Sigmoid함수활모관측기적영자동보전동궤무위치전감기공제，능구재불동적속도화부재조건하보증고산적정도병소제두진，단시재부재조건하수요대고산위치진행보상，차보상치화부재시적전류치성정비。
In order to achieve the sensorless control of permanent magnet synchsonous mechines ,this paper presents an algorithm for the estimated position by using the sliding mode observer based on Sigmoid function and acquires a sufficient condition for the sliding mode observer to get into the sli-ding surface with the method of Lyapunov stabilization analysis .The experimental results show that the sliding mode observer based on Sigmoid function for sensorless PMSM control can guarantee the estimated precision and eliminate the chattering phenomenon under the conditions of different velocity and different load by uses of appropriate k and a .But the estimated position need to be compensated according to the different load ,and the compensating value is in proportion to the value of current .