凸极同步电动机气隙磁链定向控制的解耦性分析

DECOUPLING CHARACTERISTICS OF AIR GAP FIELDORIENTED CONTROL ON A SALIENT POLE ROTOR SYNCHRONOUS MOTOR

考虑转子凸极效应，利用坐标变换法对同步电动机气隙合成磁链定向控制进行严格的数学分析和推导。结果表明，由于气隙不均匀，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。

Considering effect of salient pole rotor, this paper analyses and deduces strictlythe air gap flux orientation control of synchronous motor in mathematics using the method of coordinnate transformatoin.The research results represent that the vector control of synchronous motor does not realize decoupling control owing to the unequal magnetic circuit resistances affected by uneven air gap of the rotor direct andquadrature axis.