五相感应电动机加入三次谐波电流的仿真分析

本文运用傅里叶分析和绕组函数的方法,推导了集中整距绕组五相感应电动机的磁动势,得出集中整距绕组五相感应电机能更好地增加电机的电磁转矩、提高转矩密度.同时给出了静止坐标系(a-b-c-d-e)下考虑三次谐波电流的数学模型,通过比较绕组中加入和不加入三次谐波电流的仿真波形,得到集中整距绕组五相感应电机加入三次谐波电流能够提高转矩密度的结论.

Analysis and Simulation of Five-phase Induction Motor Injecting Third Harmonic Current

This paper presents MMF of a five-phase induction motor with concentrated and full-pitch windings by means of fourier analysis and winding function , which indicates theoretically that the five-phase induction motor with concentrated and full-pitch windings can provide more electromagnetic torque and higher torque density than others. And the mathematical model of five-phase induction motor considering the third harmonic in the nature frame of reference(a-b-c-d-e) is set up .Based on it, simulation waveforms are compared when in the windings is injecting the third harmonic current and when it is not. and a conclusion is given, that is to say, five-phase induction motor with concentrated and full-pitch windings including the third harmonic current can output higher torque density.