基于三次谐波电流注入的六相感应电动机仿真分析  

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

作　　者：王成元[1] 苏启明[1] 黄伟[1] 

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870

出　　处：《电气技术》2010年第11期5-8,31,共5页Electrical Engineering

基　　金：国家科技大专项子课题(2009ZX04010-014-03)

摘　　要：为了提高功率密度和转矩密度,需要在六相感应电动机中注入三次谐波电流,这势必导致控制系统的复杂化。为了分析定子绕组流过非正弦电流时,六相感应电动机的运行性能,必须了解谐波电流与谐波磁势的关系。运用了傅里叶分析和绕组函数的方法,推导了六相感应电动机的磁动势,同时给出了考虑三次谐波电流时的数学模型,通过比较在绕组中注入和不注入三次谐波电流的仿真波形,得到了六相感应电动机加入三次谐波电流能够提高转矩密度的结论,所建立的仿真驱动系统,具有较高的有效性和可行性,且便于快速修改控制结构和相关参数。The mode of the triple-frequency harmonic wave injection to six-phase moter can improve power intensity and torque intensity,which will comlicate the drive system.In order to analyse the performance of the six-phase induction motorwith non-sinusoidal currents in stator windings, the relationship between the harmonic currents and the corresponding harmonic magnetic mofive force(MMF) should be understood. This paper presents MMF of a six-phase induction motor by means of fourier analysis and winding function , and the mathmatical model of six-phase induction motor considering the third harmaonic.Based on it, simulation waveform are compared when in the winding is injecting the third harmonic current and when it is not. And a conclusion the third harmonic current can output can output higher torque density.Researches shows the validity and feasibility of the simulation drive system.The control structure and the key parameters of the drive system simulaton can be modified easily and quichly.

关 键 词：六相感应电机 三次谐波电流 转矩密度 集中整距绕组 

分 类 号：TM346[电气工程—电机]