CAJ | 학술논문

隐极式永磁同步电机转矩中定子磁链幅值和转矩角均为可控变量，两者的共同作用效果即为交轴磁链。以定子绕组星形连接的永磁同步电机为例，提出了一种通过控制交轴磁链实现对电机转矩直接控制的方法。该方法直接根据转矩控制要求选择优化的电压矢量实现对电机交轴磁链的控制，不要求保持定子磁链幅值恒定，不需要复杂的坐标变换。仿真结果验证了理论分析的正确性和控制方法的可行性。
은겁식영자동보전궤전구중정자자련폭치화전구각균위가공변량，량자적공동작용효과즉위교축자련。이정자요조성형련접적영자동보전궤위례，제출료일충통과공제교축자련실현대전궤전구직접공제적방법。해방법직접근거전구공제요구선택우화적전압시량실현대전궤교축자련적공제，불요구보지정자자련폭치항정，불수요복잡적좌표변환。방진결과험증료이론분석적정학성화공제방법적가행성。
The amplitude of stator flux linkage and torque angle are controllable variables in non-salient pole permanent magnet synchronous motor, and the interaction effect of stator flux linkage amplitude and torque angle is Q-axis flux linkage. Taking the permanent magnet synchronous motor with Y connected stator winding for example, a novel direct torque control method through the control of Q-axis flux linkage is presented. This method selects the required voltage vector according to the torque control requirement directly without constant stator flux linkage amplitude control and complex coordinate transformation. The correction and feasibility of the proposed method are verified by the simulation re-sults.