摘要
以绕线转子无刷双馈电机为研究对象,基于转子电路电压平衡关系,以转子边作为参照系,针对无刷双馈电机两套不同极数的绕组,提出极数折算的概念,导出无刷双馈电机正常运行时这两种不同极数绕组各自产生的合成磁动势必须保持的平衡关系,及转子电动势平衡关系的磁动势表现形式,解释了定子控制绕组变频调节时电流变化机理,由此推导了无刷双馈发电机空载运行状态下,定子控制绕组中的空载电流计算方法,并制作Y250-2/6和Y355-2/6两台不同机座号的试验电机进行了测试,结果与理论分析相符.
The wound-rotor doubly fed brushless machine was considered as the research object ,based on voltage balance relationship in the rotor circuit ,and the pole number for two sets of different pole winding of the machine was assumed to be the same ,the balance relationship was described between the synthesis of magnetic motive force produced by the two sets of different pole windings respectively when the machine is in normal operation .The calculation method of no-load current was presented when the machine operating as a generator .The experimental results of no-load current shown in this paper were carried out respectively on Y250-2/6 frame size and Y355-2/6 frame size wound rotor dou-bly fed brushless machine .
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第10期79-82,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
关键词
电机
磁动势
空载电流
无刷
双馈
绕线转子
machine
magnetic motive force
no-load current
brushless
doubly-fed
wound-rotor
