新型混合励磁磁通切换型磁阻电机的变结构磁路模型  

A Variable Structure Magnetic Circuit Model of Novel Hybrid Excitation Flux Switching Motors

作　　者：张宗盛[1] 王秀和[1] 杨玉波[1] 

机构地区：[1]山东大学电气工程学院,山东省济南市250061

出　　处：《中国电机工程学报》2014年第21期3467-3474,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51107075);高等学校博士学科点专项科研基金资助项目(20110131110010)~~

摘　　要：为使磁通切换型磁阻电机(flux switching motor,FSM)兼具节电效果与励磁调节能力,提出一种新型单相混合励磁磁通切换型磁阻电机(hybrid excitation flux switching motor,HEFSM),其由励磁绕组与永磁体共同提供励磁磁动势,结构独特,磁路复杂。同时,提出一种适用于该电机静态特性分析的磁路模型建模方案,包括适用于结构变化的气隙及铁心磁阻确定方法,同时避免了重新列解磁路方程,求解方程时对磁化曲线进行插值处理,使得铁心的磁导率为非线性,更加贴合实际情况。设计制作了样机,进行了有限元仿真与实验研究。仿真、实验结果与所建模型计算结果对比表明,所建立的模型能够较好的反应电机的实际特性,为该类电机的设计、分析提供了参考。In order to make the flux switching motor （FSM） has both the energy saving effect and the ability of excitation adjustment, this paper presents a novel single-phase hybrid excitation flux switching motor （HEFSM）, whose excitation MMF is provided by an excitation winding and a permanent magnet. The motor has a unique structure and a complex magnetic circuit. At the same time, a building method of magnetic circuit model is presented to research the motor＇s static characteristics. The method includes how to calculate the reluctance of the air gap and iron core without rebuilding the magnetic circuit equations when the magnetic circuit changes. To reflect magnetic permeability＇s nonlinear characteristic of the iron core, the interpolated method is adopted to solve the equation. A prototype was designed and manufactured, and the finite element simulation and experimental study was conducted. Comparing magnetic circuit model＇s calculation results with finite element analysis results and experiment results shows that the method can reflect the actual characteristics of the motor and provides a reference for the design and performance analysis of HEFSM.

关 键 词：混合励磁 磁通切换型磁阻电机 变结构 非线性 静态分析 

分 类 号：TM351[电气工程—电机]