混合式步进电动机的归一化设计

In this paper, the tooth-layer rate permeance method is implemented to build a magnetic circuit network model for a four-phase eight-pole hybrid stepper motor. In the basis of the built magnetic circuit network, the author designed a new normalized argirothm for hybrid stepper motor design. By numbering each node of the magnetic circuit network, a normalized nodal-based equation of the network is given, and a general magnetic circuit network for arbitrary number of phase and pole is built. Then, a computer aided design software for hybrid stepper motor is written in C++ language with the field-circuit coupled method. Simulation of the torque-angle characteristics of the mentioned four-phase eight-pole motor was ran before and after the normalization process. The result of the normalized model agrees with the unnormalized one.