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Steady-State Power Relation of AC-Excited Variable-Speed Constant-Frequency Doubly-Fed Induction Generator
Author(s): 
Pages: 39-44,62
Year: Issue:  2
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  双馈型异步发电机交流励磁变速恒频稳态功率关系;
Abstract: 在交流励磁变速恒频发电应用中,双馈型异步发电机(DFIG)的控制对象是定子有功、无功功率,控制变量是转子电压、电流.采用DFIG等效电路,推导基于DFIG控制对象的转子电压、电流计算方法,将转子电压、电流分解为励磁分量、有功分量及无功分量,揭示了DFIG控制对象与控制变量之间的内在联系;研究定、转子的有功、无功功率关系,重点对不同运行条件下DFIG无功功率特性进行探讨,分析DFIG转子无功功率和定子无功功率以及转差之间的关系.
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