摘要
从多层理论出发,取各向异性介质的子层为一般情况,电磁场分析结果用表面阻抗表达,由此导出级连形式的等值电路,提出分层阻抗术语并阐明其基本概念。分层阻抗理论有利于将电磁场分析与电机等值电路研究紧密联系。转子中的分层阻抗可以直接折算至定子侧。气隙分层阻抗折算值就是电机励磁电抗,其值不受转子介质参数的影响。由此可理解实心转子向双层结构发展的现实意义。指出了几种双层复合实心转子感应电机等值电路的特点。
The theory described in this Paper is developed based on the Multilayer Theory. A sublayer taking from anisotropic medium is considered as general case. The solutions of Maxwell's field equations are expressed using surface impedances and an equivalent circuit in the form of cascade connection is derived. The term 'Sublayer Impedance' is suggested and its concept is explained in detail. It benefits to relate the analyses of electromagnetic fields with equivalent circuit of an electrical machine more closely. The sublayer impedances in a rotor may be referred to the stator directly.The referred value of air gap's sublayer impedance is just the same to the magnetizing reactance of an electrical machine and it is not influenced by the parameters of rotor media.Thus one can understand it is available to develop solid rotor into double-layer construction. The features of equivalent circuits of some type double--layer composite solid rotor induction motors are pointed out.
出处
《电工技术学报》
EI
CSCD
北大核心
1993年第2期18-22,17,共6页
Transactions of China Electrotechnical Society
关键词
异步电动机
实心转子
电场
磁场
: Induction machine
Solid rotor
Electromagnetic field
Equivalent circuit
