复合磁路三相定子混合励磁双凸极直流发电机及其时步有限元分析  

The Compound Flux-path Three Phase Stator Hybrid Excited Doubly Salient DC Generator and Its Transient FEM Analysis

作　　者：万伟悦[1] 严仰光[1] 陈志辉[1] 孟小利[1] 

机构地区：[1]南京航空航天大学电气工程系,江苏南京210016

出　　处：《大功率变流技术》2011年第3期38-43,50,共7页HIGH POWER CONVERTER TECHNOLOGY

摘　　要：复合磁路三相定子混合励磁双凸极直流发电机的励磁线包和永磁体在与转轴正交的同一剖面上,电励磁磁通和永磁磁通复用电机磁路具有励磁功率小、励磁调节范围可按要求设计、可以实现单输出或双路输出的特点。文章介绍了该型电机的典型结构,使用时步有限元法分析其工作模态,基于场分析结果提取电感特性,计算比较空载特性、外特性,仿真计算了双路输出的开环调整率。分析结果表明,该电机既能作为独立供电系统的无刷直流发电机,又能并网发电,特别适于航空和其他野外作业场合高速发电机用,并实现起动/发电一体化,应用前景广泛。The field windings and permanent magnets of compound flux-path three-phase stator hybrid excited doubly salient DC generator are on the same cross-section orthogonal to the shaft,where flux excited by field windings and permanent magnets multiplexes the core paths.This machine has small excitation power,can regulate its field in a designing range,and outputs in one channel or double channels.This paper introduces the typical topologies,analyses the operating modes with Transient FEM,and extracts the inductance based on the field analysis,then calculates nonload and external V-I characteristics comparatively,at last open-loop cross-regulation-rate of double channel outputs is also simulated.The results point out that this machine has a wide application future,which can be used as brushless DC generators in isolate generating systems and connects to the grid;it is especially suitable for high-speed generators applied in aeronautics or other field works and can realize the integrated start /power generation.

关 键 词：复合磁路 混合励磁 双凸极直流发电机 无刷直流发电机 工作模态 时步有限元法 双路输出 

分 类 号：TM352[电气工程—电机]