CAJ | 학술논문

给出了永磁同步电机的工作原理和数学模型，介绍了永磁同步电机的矢量控制方法。针对转子位置影响电机控制精度的问题，给出了一种简单的转子位置实时估计方法，克服了传统的有位置传感器的缺点。为了提高转子位置检测精度，利用线反电势过零点信号对转子位置估计值进行校正，提高了转子位置估计的准确性与可靠性，而且不需要电机提供中线，实验结果表明，本文所提的方法能够有效地实现永磁同步电机无位置传感器条件下的矢量控制。
급출료영자동보전궤적공작원리화수학모형，개소료영자동보전궤적시량공제방법。침대전자위치영향전궤공제정도적문제，급출료일충간단적전자위치실시고계방법，극복료전통적유위치전감기적결점。위료제고전자위치검측정도，이용선반전세과영점신호대전자위치고계치진행교정，제고료전자위치고계적준학성여가고성，이차불수요전궤제공중선，실험결과표명，본문소제적방법능구유효지실현영자동보전궤무위치전감기조건하적시량공제。
The principle and the mathematical model of permanent magnet synchronous motor (PMSM) are first given in this paper. Then, the vector control method for PMSM is introduced. On account of the rotor position value affecting the motor control accuracy, a simple real-time rotor position estimation method is presented to overcome the shortcomings of the traditional position sensor. In order to improve the rotor position detection precision, the zero crossing signal of the line-to-line back EMF is used to correct the estimated rotor position value, thus improving its accuracy and reliability. Moreover, the neutral line is not required any more. At last, the feasibility and effectiveness of the proposed rotor position estimation method for PMSM without the position sensors and the corresponding vector control method are verified by several results.