CAJ | 학술논문

对近年提出的多种估算永磁同步电动机转子位置、速度的方法进行了综述,比较了各种方法的优缺点;并对中高速适用的扩展卡尔曼滤波(EKF)进行了实验研究:零速及低速时,现有的永磁同步电动机无传感器技术多是指无位置传感器,少数几种无速度估计算法都有很大的局限性.本文针对这一现状,选取基于高频信号注入+磁链观测的永磁同步电动机全速范围无传感器控制方法进行了仿真验证;最后指出复合控制方法是实现全速范围无传感器控制技术的发展趋势.
대근년제출적다충고산영자동보전동궤전자위치、속도적방법진행료종술,비교료각충방법적우결점;병대중고속괄용적확전잡이만려파(EKF)진행료실험연구:령속급저속시,현유적영자동보전동궤무전감기기술다시지무위치전감기,소수궤충무속도고계산법도유흔대적국한성.본문침대저일현상,선취기우고빈신호주입+자련관측적영자동보전동궤전속범위무전감기공제방법진행료방진험증;최후지출복합공제방법시실현전속범위무전감기공제기술적발전추세.
Various methods of estimating the rotor position and speed for permanent magnet synchronous motor (PMSM) drive are reviewed in this paper, and both the advantages and disadvantages are also compared respectively. Next, extend Kalman filter, adequate for middle and high speed, is verified. Most of the sensorless schemes are position self-sensing at zero and low speed, with few speed sensorless schemes adequate for low speed having significant limitations. A novel sensorless scheme application in whole speed based on high frequency signal injection and flux linkage observation are developed for a better solution to this condition, and then the effectiveness is tested by simulation. And finally, the compound control method is considered to be the development trend of full speed sensorless control technology.