大型汽轮发电机运行与无功控制

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Abstract Through studying the reasons that limit generators’ leading-phase operation, this article discusses the level of itsinfluential factors including the heating of the stator terminals and the generator static-state stability.It is concluded that the heating of the stator terminals has no limitation on the leading-phase operation of large turbine-generators, and determined the principle that only the coordination between the setting calculation of under excitation limiters(UEL) and the loss-of-field protection is necessary.Through analyzing the method of the mapping criteria of UEL and the loss-of-field protection between the RX-plane and the PQ-plane, the principle of their coordinative setting calculation is proposed.Furthermore, this paper develops a circular characteristic UEL and its setting calculation, and advises the settings of the loss-of-field protection.

Key words： Leading-phase operation heating of stator terminals static-state stability under excitation limiters loss-of-field protection setting calculation

Received: 06 November 2014 Published: 13 April 2015

PACS:

TM315

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	Xian Xiao
	Xun Zhiwei
	Zhou Daojun

Cite this article:

Xian Xiao,Xun Zhiwei,Zhou Daojun. Operation and Reactive Power Control of Large Turbine-Generators[J]. Transactions of China Electrotechnical Society, 2015, 30(5): 98-105.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I5/98

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