HYBRID EXCITATION CLAW-POLE SYNCHRONOUS GENERATOR WITH MAGNETIC CIRCUIT SERIES CONNECTION  

串联磁路混合励磁爪极发电机的研究(英文)

作　　者：赵朝会[1] 秦海鸿[2] 严仰光[2] 

机构地区：[1]上海电机学院电气学院 [2]南京航空航天大学航空电源实验室

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2009年第1期44-51,共8页南京航空航天大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(50337030);the Natural Science Foundation of Shanghai(08ZR1408600);the Natural Science Foundation of Shanghai Dianji University(08C410)~~

摘　　要：To solve the low efficiency of electric excitation claw-pole synchronous generator（EECPSG） and regulate the magnetic field of permanent magnet （PM） claw-pole synchronous generator（PMCPSG）, a novel hybrid excitation claw-pole synchronous generator （HECPSG）with magnetic circuit series connection is proposed. Through the simulation study on the generator using the calculation method for magnetic circuit and 3-D finite element method （FEA）, the appropriate magnet thickness and the number of pole-pairs for the proposed generator are determined. Its off-loading characteristics, load characteristics, and regulation behaviors are investigated. The study shows that the appropriate number of pole-pairs in HECPSG with series magnetic circuits is two, and there exists an optimum magnet thickness. Compared to EECPSG, HECPSG realizes dual-directional control to the excitation current. Moreover, the generator can adjust the output voltage and keep the output voltage stable in a broad load range. Under the condition of same parametes, the motor has higer air-gap flux density and power density.针对电励磁爪极发电机效率低、永磁爪极发电机磁场调节困难的问题,提出了一种串联磁路混合励磁爪极同步发电机,利用磁路计算方法和三维有限元的分析研究了这种新型电机各部分的磁密大小,确定了合适的极对数和合理的磁钢厚度,探讨了这种新型电机的空载特性、外特性和调节特性。研究表明:串联磁路混合励磁爪极发电机合适的极对数为2,且磁钢厚度存在一个较为合理的优化值。相对于电励磁爪极发电机,它实现了励磁电流的双向控制;相对于永磁爪极发电机它使得输出电压可调,在更宽的负载范围内实现了输出电压的恒定。在参数相同的情况下,与电励磁爪极发电机相比,该电机具有更高的气隙磁密和功率密度。

关 键 词：GENERATOR series connection hybrid excitation claw-pole machine 

分 类 号：TM341[电气工程—电机] TM313