永磁式双凸极电机机械特性  

Mechanical Characteristics for Doubly Salient Permanent Magnet Motors

作　　者：胡勤丰[1] 严仰光[1] 

机构地区：[1]南京航空航天大学航空电源航空科技重点实验室,南京210016

出　　处：《电工技术学报》2007年第3期6-12,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(50337030)

摘　　要：双凸极电机是20世纪90年代提出的一种新型交流调速电机,由于对其特性研究不多,目前该种电机的应用还很有限。本文以12/8极永磁式双凸极电机(DSPM)为研究对象,以有限元法对电机内电磁场分析结果为基础,运用理论分析及系统稳态运行仿真模型,对永磁式双凸极电机的机械特性进行了初步研究,将机械特性曲线划分为三个区域加以分析。研究结果表明:区域2内特性曲线最硬,区域1、3内特性曲线均较软。在一台原理样机上进行了试验验证,试验结果和理论分析及仿真之间有很好的一致性。Doubly salient permanent magnet motor（DSPM） is a novel electromechanical controllable AC variable speed system presented in 1990＇s. As there are no sufficient researches on the motor, its appliances are limited. In this paper, for a 12/8 poles DSPM, based on field flux and inductance characteristics worked out by finite element analysis method （FEA）, a simulation model for computing steady characteristics of DSPM system was constructed in Matlab environment. By applying the simulation model, a mechanical characteristic curve for DSPM could be obtained at a certain bar voltage and current limit. Then the curve was disjoined into three sections, and the characteristic of section Ⅱ is the most hard, the characteristics of section Ⅰ and section Ⅲ are softer. A detailed analysis on these three sections is given. And this conclusion is verified by test.

关 键 词：永磁式 双凸极电机 有限元法 电流限幅值 桥式变换器 机械特性 

分 类 号：TM351[电气工程—电机]