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
蒋晓东 1代勇 1石征锦1
作者信息
- 1. 沈阳理工大学 自动化与电气工程学院,沈阳 110159
- 折叠
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 synchro-nous 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.
Abstract
Aiming at the problem that a permanent magnet 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,operation system are expounded respectively.A pro-totype with rated power of 11 kW is designed.The main parameters and exciting winding wiring di-agram are described.A 2D physical model of SEEBSM is established.The electromagnetic charac-teristics under no-load and load(light load and rated 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 providing a small DC current to the excitation winding to synchronize the speed,which provides a reference 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Key words
electrically excited brushless synchronous motor/novel rotor structure/electromagnetic characteristic/finite element引用本文复制引用
基金项目
辽宁省教育厅高等学校基本科研项目(面上项目)(LJKMZ20220616)
出版年
2024
NETL
NSTL
万方数据