CAJ | 학술논문

针对内置式永磁同步电机的无感器运行问题,提出一种转子初始位置估计方法.通过对内嵌式永磁同步电机的定子绕组施加合适的电压脉冲,检测未通电相的端电压就可以获得转子的位置信息.利用磁饱和效应对凸极性的影响来区分南北极,从而区别2个稳定区,转子初始位置估计方法的分辨率为30°电角度.以DSP控制的永磁同步电机系统为试验平台,对所提出的方法进行了试验验证及试验结果分析,结果表明,提出的方法能够可靠而有效的估计初始转子位置.
침대내치식영자동보전궤적무감기운행문제,제출일충전자초시위치고계방법.통과대내감식영자동보전궤적정자요조시가합괄적전압맥충,검측미통전상적단전압취가이획득전자적위치신식.이용자포화효응대철겁성적영향래구분남북겁,종이구별2개은정구,전자초시위치고계방법적분변솔위30°전각도.이DSP공제적영자동보전궤계통위시험평태,대소제출적방법진행료시험험증급시험결과분석,결과표명,제출적방법능구가고이유효적고계초시전자위치.
An initial rotor position estimation is presented to solve sensorless operation of the interior permanent magnet synchronous machine(IPMSM). The IPMSM is basically a salient pole machine, which means that the self-inductance seen by a phase winding will vary with rotor position. At a standstill, by applying rectangular pulse voltage to the phase motor of the IPMSM, the rotor position estimation can be obtained based on the simple detection and comparison of phase voltage of the unpowered phase. Magnetic saturation effect on the saliency was used to distinguish the north magnetic pole from the south, so two stable points were distinguished, and 30 degree resolution can be achieved. The proposed method was implemented and verified by the experimental results on a DSP based control system. The experimental results were analyzed. By the proposed method, an initial rotor position angle is gained more reliably and efficiently.