摘要
无刷双馈电机是一种适用于变频调速的新型感应电机,其结构和工作原理与普通交流电机不同。本文分析了具有笼型转子电机的基本电磁关系,提出了用电动势来等效机械负载的新频率折算方法。在此基础上,建立了一个通用的等效电路模型,它不仅适用于电动状态下的特性分析,而且适用于对发电机的分析。利用该等效电路,对电机的特性进行了分析和仿真。仿真和实验结果的一致性,证明了本文提出的电路模型和计算方法的正确性。
The brushless doubly-fed machine （BDFM） is a new type of induction machine which has different structure and operation principle than a conventional AC machine. The electromagnetic relation of BDFM with cage rotor is analyzed, and a novel method of referring frequency is proposed. Based on the analysis, a general equivalent circuit of BDFM, which permits analysis of the characteristics in both motor mode and generator mode, is presented. The characteristic simulation results are compared with the test data. They show the validity of the equivalent circuit model.
出处
《电工技术学报》
EI
CSCD
北大核心
2005年第9期19-23,28,共6页
Transactions of China Electrotechnical Society
关键词
无刷双馈电机
电磁分析
折算频率
等效电路
Bmshless doubly-fed machine, electromagnetic analysis, referring frequency, equivalent circuit
