摘要
基于通用电机基本原理和对称分量法,对十五相感应电机在定子绕组多相开路时的稳态电流和转矩特性进行了分析,由十五相感应电机的稳态等效电路,采用数值求解方法获得了多相定子绕组开路时电机各稳态相量。理论分析和实验表明,多相电机特性的恶化程度与定子绕组开路的相数以及它们的相对位置有关。
A steady state model and equivalent circuits of a 15-phase induction motor, based on conventional generalized theory of electrical machine and symmetrical component method, is presented in this paper. Evaluation of steady state performance characteristics of the machine with multiphase stator windings open circuited is addressed. Numerical iteration is introduced to obtain the steady state phasors of the motor during post fault conditions. The analytical results show that motor performance degradation is sensitive to the number and relative position of the fault phases. A large percentage of the motor’s balance excitation rating can be retained under asymmetrical connections. A prototype 15-phase induction machine drive system is presented. Experimental results validated the theoretical analysis.
出处
《电工技术学报》
EI
CSCD
北大核心
2004年第11期14-19,共6页
Transactions of China Electrotechnical Society
基金
"十五"国家科技攻关资助项目(2002BA218C)。
关键词
多相感应电机
稳态特性
定子绕组开路
Multiphase induction machine, steady state performance, stator winding open circuited
