多速电机电磁场分析

Analysis on Electromagnetic Field of Multi-Speed Motor

变速电机由于具有可随负载性质的要求,而有级地变化转速,从而达到功率的合理匹配和简化变速系统的特点,变极调速电机是实现变速方案中较为经济的一种。常见的变极调速电机有双速和三速,现通过采用突破传统的手算计算的有限元仿真分析方式,更直接有效的对一个较为复杂的三速电机电磁场进行分析验证。

Because of the requirements of the load nature,the speed of adjustable-speed motor can be regulated in degree so as to achieve characteristics of the reasonable power match and the simplified variable-speed system. Variable-pole adjustable-speed motor is a more economical scheme to achieve the speed regulation. The commonly-used variable-pole adjustable-speed motors include two-speed one and three-speed one. In this paper,the electromagnetic field of a complicated threespeed motor is analyzed and verified more directly and effectively by using a finite-element simulation analysis method that breaks through the traditional manual calculation method.