Asymmetric Three-phase Winding in Induction Motor

Abstract:

In this paper， an induction motor with asymmetric alternating current windings is studied， and the existing research results are analyzed and compared. For the symmetric winding， under the symmetric component conversion， the voltage equation is expressed by the sequence impedance. For the phase winding， the relationships between the self inductance leakage impedance， the mutual inductance leakage impedance， the equivalent impedance and the zero sequence impedance are obtained. The equivalent impedance and the zero sequence impedance are respectively multiplied by different coefficients according to the actual case of asymmetric winding， so as to establish a new voltage equation. The coordinate conversion of magnetic motive force components is applied to decouple the voltage equation for simple calculation. Finally， the calculation results are verified by experiments.