一种新型无刷励磁机的三维热流场分析.pdfVIP

第34 卷 第27 期 中 国 电 机 工 程 学 报 Vol.34 No.27 Sep.25, 2014 2014 年9 月25 日 Proceedings of the CSEE ©2014 Chin.Soc.for Elec.Eng. 4699 DOI ：10.13334/j.0258-8013.pcsee.2014.27.017 文章编号：0258-8013 (2014) 27-4699-07 中图分类号：TM 341 一种新型无刷励磁机的三维热流场分析 路义萍，付余，张万全，韩家德 (哈尔滨理工大学机械动力工程学院，黑龙江省 哈尔滨市 150080) Analysis of Three Dimensional Thermal and Flow Fields for a New Brushless Exciter LU Yiping, FU Yu, ZHANG Wanquan, HAN Jiade (School of Mechanical Power Engineering, Harbin University of Science and Technology, Harbin 150080, Heilongjiang Province, China) ABSTRACT: In order to research the thermal and fluid flow 0 引言 field characteristics of the air in the stator, rotor, rotating rectifier plate and housing which are the main components of 无刷励磁机是向同步电动机的磁场供给直流 the brushless exciter to ensure the safe and stable operation of 电的旋转电机。励磁机的电枢中产生的交流电流， the equipment, a physical model of 1/2 of a new brushless 通过转轴上配置的多根连接导体流入整流装置，将 exciter structure that is relative to the ground was established, 交流转换成直流。无刷励磁机不仅仅是实现能量转 according to the computational fluid dynamics (CFD) principle, 换必不可少的环节，对同步电机的安全、高效率持 the finite volume method was adopted to simulate and analyse the three dimensional turbulent flow field and temperature field 续运行也尤为重要。无刷励磁同步电动机开发过程 in the computational domain. The results show that the air area 中的重点不在于主机，而在励磁机部分。无刷励磁 between the rectifier plate and the stator and rotor dominated 机的结构主要分为定子、转子、旋转整流盘和外罩 by negative pressure, the air in the rectifier plate area cannot