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	Research on constructing algorithm of circulating current in delta winding of transformers
	Bi Daqiang ; Liang Wuxing ; Jianyun, C. ; Wang Xiangheng ; Wang Weijian
	2010-05-06 ; 2010-05-06
关键词	Practical Experimental/ power transformer protection/ constructing algorithm circulating current transformers delta winding Y-delta connected transformer current phase compensation differential protection equivalent instantaneous inductance scheme voltage equations zero-sequence voltage neutral grounding/ B8350 Transformers and reactors
中文摘要	For Y-delta connected transformer, the currents in delta winding are not easily measurable. So the problem of current phase compensation has to be considered in the differential protection. However, using the present current phase compensation methods, the calculated differential current cannot really reflect the characteristics of the inrush. At the same time, the application based on the equivalent instantaneous inductance scheme is limited to identify the inrush. In this study, a constructing algorithm of circulating current in delta windings is proposed based on the voltage equations of two side windings. And the relationship between the circulating current and zero-sequence voltage and current in Y side windings is also obtained. The algorithm has nothing to do with the neutral grounding, so that its application is wide. The simulation and experimental results verify that the algorithm is correct and effective to identify the inrush. This work is supported by National Natural Science Foundation of China (No. 50507014), Electrical Power Science and Technology Foundation of Xuji, and the Youth Innovation Foundation of the Department of Electrical Engineering, Tsinghua University.
语种	中文 ; 中文
出版者	State Power Corp. of China ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11903]
专题	清华大学
推荐引用方式 GB/T 7714	Bi Daqiang,Liang Wuxing,Jianyun, C.,et al. Research on constructing algorithm of circulating current in delta winding of transformers[J],2010, 2010.
APA	Bi Daqiang,Liang Wuxing,Jianyun, C.,Wang Xiangheng,&Wang Weijian.(2010).Research on constructing algorithm of circulating current in delta winding of transformers..
MLA	Bi Daqiang,et al."Research on constructing algorithm of circulating current in delta winding of transformers".(2010).

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