径向结构混合励磁无刷直流发电机的原理及实现  

The Theory and Realization of Radial Structure Hybrid Excitation Brushless Direct Current Generator

作　　者：赵朝会[1] 

机构地区：[1]上海电机学院电气学院,上海200240

出　　处：《上海电机学院学报》2009年第2期87-91,共5页Journal of Shanghai Dianji University

基　　金：国家自然科学基金资助项目(50337030);上海市自然科学基金资助项目(08ZR1408600);上海市教育委员会科研创新项目资助(09YZ480)

摘　　要：针对永磁发电机输出电压不可调的缺点,提出了一种新型的电机结构——径向结构混合励磁无刷直流发电机(HEBLDCG),它利用附加气隙的磁分路作用来调节电机的气隙磁场。描述了电机的结构组成,借助电机的等效磁路分析,研究了电机的调磁原理,并对样机进行了实验。实验表明,在负载变化时,通过调节直流励磁的大小,样机的输出电压保持恒定。To overcome the voltage regulation difficulty of permanent-magnet synchronous ma- chine （PMSM）, a hybrid excitation brushless direct current generator （HEBLDCG） is designed in this paper. The magnetic shunting is employed to adjust the air-gap magnetic field of the HEBLDCG by adjusting excitation current. The structure of machine is described. With the help of the magnetic cir- cuit analysis, the magnetic regulation principle of the generator is studied. The experimental results show that the output voltage of the machine can be kept constant by adjusting the excitation current when the power factor or the load changes.

关 键 词：径向结构 混合励磁 无刷直流 发电机 

分 类 号：TM331[电气工程—电机]