摘要
基于零序空间谐波磁场励磁的无刷同步电机,励磁电流的建立与电枢绕组中所注入的零序电流及转子谐波绕组的分布密切相关。同时,高次电枢谐波磁场和齿谐波磁场会对励磁电流产生干扰。为了提高励磁电流的稳定性和调节性能,该文深入分析合成电枢磁场产生的高次谐波和齿谐波电动势,研究干扰型谐波电动势对励磁电流的影响。并以2种具有不同槽极比结构的电机为例进行分析,表明在谐波绕组配合下,具有分数槽拓扑结构的电机转子谐波绕组中的高次谐波和齿谐波电动势得到明显削弱,励磁电流具有良好的调节特性。制作2种结构的样机进行实验,实验结果和2-D有限元结果一起验证了理论分析的正确性。
For the brushless synchronous machine excited with zero-sequence spatial harmonic field, establishment of the field current is closely related to the armature zero-sequence current and the distribution of rotor harmonic winding. And the field current can be also interfered by existing high armature harmonics and tooth harmonics. In order to improve the stability and regulating performance of the field current, influence of armature high harmonic and tooth harmonic magnetic fields on the harmonic winding EMFs were described in detail, and the influencing factors of the field current were also analyzed. Analyzing results on two specific machines with different topologies show that high harmonic and tooth harmonic EMFs on the harmonic winding of the fractional-slot machine are weakened obviously, and the generated field current has good regulation characteristic. Results of experiments and 2-D FEA verified the correctness of the theoretical analyses. The theoretical analyses, together with the experimental results, provide theoretical and experimental basis for further study of the machine.
作者
姚飞
安群涛
孙立志
LIPO Thomas Anthony
YAO Fei;AN Quntao;SUN Lizhi;LIPO Thomas Anthony(Department of Electrical Engineering,Harbin Institute of Technology,Harbin 150001,Heilongjiang Province,China;Department of Electrical and Computer Engineering,University of Wisconsin-Madison,Madison 53706,WI,USA)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2019年第19期5867-5875,共9页
Proceedings of the CSEE
基金
国家自然科学基金项目(51277040)
国家留学基金委项目(201606120144)~~
关键词
同步电机
无刷励磁
零序谐波磁场
齿谐波
谐波抑制
synchronous machine
brushless excitation
zero-sequence harmonic field
tooth harmonics
harmonic suppression
作者简介
姚飞(1985),男,博士研究生,研究方向为电机设计与控制、功率变换技术,yaof25@126.com;安群涛(1984),男,博士,副教授,硕士生导师,研究方向为电机控制、功率变换和储能等;通信作者:孙立志(1970),男,教授,博士生导师,研究方向为电机设计、电机控制及电动汽车等,lzsun@hit.edu.cn;Thomas A.Lipo(1938),男,教授,博士生导师,IEEE Life Fellow,美国国家工程院院士,英国皇家工程院院士,研究方向为电机设计、仿真与电机控制等。
