异步化超高压发电机转子结构优化  

Research on the optimization about rotor of asynchronous extra-high voltage synchronous generator

作　　者：吕艳玲[1] 李吉 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,哈尔滨150080

出　　处：《扬州大学学报（自然科学版）》2017年第3期35-39,共5页Journal of Yangzhou University：Natural Science Edition

基　　金：国家自然科学基金资助项目(5140070496)

摘　　要：为了减小异步化超高压同步发电机气隙磁密的谐波影响,改善感应电动势波形,对异步化超高压同步发电机进行结构优化;采用有限元方法对异步化超高压同步发电机不同转子绕组的连接方式及槽型进行了仿真分析,得到了气隙磁密和感应电动势的谐波含量.结果表明:采用双层叠绕组连接方式和半开口槽型的转子结构时,异步化超高压同步发电机的感应电动势谐波含量能达到国标要求,并能提高该类电机运行的可靠性.In order to reduce the harmonic influence of air gap flux density of Asynchronous ExtraHigh Voltage Synchronous Generator(AEHVSG)and improve induced electromotive force waveform,a structural optimization of AEHSG is carried out.The finite element method is applied to simulate AEHVSG under different rotor winding types and rotor slot types.The harmonic content of air gap flux density and electromotive force are analyzed.The results show that when employing the double layer lap winding and half-open slot for the rotor structure the harmonic content of the induced electromotive force of AEHVSG is in the range of national standard,and the reliability of AEHVSG is also improved.

关 键 词：气隙磁密 有限元分析 转子槽型 谐波含量 

分 类 号：TM31[电气工程—电机]