新型转子定子电励磁无刷同步电机特性分析  

Characteristic Analysis of Stator Electrically Excited Brushless Synchronous Motor with Novel Rotor

作　　者：蒋晓东 代勇 石征锦 JIANG Xiaodong;DAI Yong;SHI Zhengjin(Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学自动化与电气工程学院,沈阳110159

出　　处：《沈阳理工大学学报》2024年第5期27-33,40,共8页Journal of Shenyang Ligong University

基　　金：辽宁省教育厅高等学校基本科研项目(面上项目)(LJKMZ20220616)。

摘　　要：针对极端环境下因永磁体失磁导致电机性能下降,而不适宜采用永磁电机的情况,提出一种新型转子结构的定子侧电励磁无刷同步电机(stator electrically excited brushless synchronous motor, SEEBSM)。分别阐述绕组分布、转子结构和运行系统,设计一台额定功率为11 kW的样机,给出了主要参数和励磁绕组接线图,建立了电机二维物理模型,采用有限元方法分别对其空载和负载(轻载和额定负载)运行时的电磁特性进行了分析,研究结果表明所提出的新型转子结构能够改善起动性能,且能省去由励磁控制器向励磁绕组提供小直流电流使转速牵入同步的过程,可为后续样机的研制和实验研究提供参考。Aiming at the problem that a permanent mag net motor is inapplicable for extreme envi-ronment because of its performance degradation due to the loss of permanent magnet excitation,a stator electrically excited brushless synchronous motor(SEEBSM)with novel rotor structure is pro-posed.The winding distribution,rotor structure,op eration system are expounded respectively.A pro-totype with rated power of 11 kW is designed.The mai n parameters and exciting winding wiring di-agram are described.A 2D physical model of SEEBSM i s established.The electromagnetic charac-teristics under no-load and load(light load and rat ed load)are simulated by finite element method.The results show that the novel rotor structure can not only improve the starting performance,but also save the process of excitation controller prov iding a small DC current to the excitation winding to synchronize the speed,which provides a referenc e for the development and experimental research of the following prototype.

关 键 词：电励磁无刷同步电机 新型转子结构 电磁特性 有限元 

分 类 号：TM352[电气工程—电机]