Transient simulation of the low-frequency and high-frequency behavior of asynchronous machines in SPICE

Abstract

The aim of this investigation is the model-based description of an asynchronous motor by a general equivalent circuit that can be used in SPICE. The model incorporates the dynamic behavior of the motor including possible mechanical loads and the high-frequency behavior at the connecting terminals. The parametrization is explained and some comparative measurements with a real motor are presented and discussed. The presented method allows simulating an entire drivetrain of an electric or hybrid vehicle, which consists of a traction battery, an inverter and at least one electrical machine, including electromagnetic compatibility phenomena like fast transients of the stator current.