转子凸极效应对同步电动机矢量控制的影响研究

Research on Effect of the Rotor Salient Pole Property on VectorControl of Synchronous Motor

本文在气隙合成磁链矢量旋转坐标系上，研究了转子凸极效应对同步电动机矢量控制的影响．严格的数学分析、推导和仿真结果表明，由于凸极同步电动机气隙不均匀，转子纵横轴磁路不对称，以气隙合成磁链矢量定向的旋转坐标系并不能使同步电动机的控制解耦．此外还首次得出考虑转子凸极效应后的同步电动机矢量控制数学表达式，并讨论了不解耦性对转子阻尼绕组的影响．

The paper researches effect of the rotor salient pole property on vector control of synchronous motor with the rotatory coordinate system of air gap flux vector. The results of mathematicalanalyses,deduction and simulation represent that the vector control of synchronous motor do not realizesdecoupling control owing to the unequal magnetic circuit resistances affected by uneven air gap of the rotordirect and quadrature axis,then the mathematical representations of vector control on synchronous motorconsidering the rotor salient pole property are given and the effect of uncoupling on the rotor damper wingings is discussed.