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	An online preventive control method for power flow unsolvability
	Liu Mingsong ; Wu Wenchuan ; Zhang Boming ; Wu Sunong ; Liu Yingshang
	2010-05-06 ; 2010-05-06
关键词	Practical Theoretical or Mathematical/ digital simulation energy management systems linear programming load flow control power grids power system control power system restoration power system security/ online preventive control method power flow unsolvability static state security analysis energy management system EMS power system operation linear programming method power system restoration digital simulation power grid National Basic Research Program National Natural Science Foundation China/ B8110C Power system control B8110B Power system management, operation and economics B0260 Optimisation techniques C3340H Control of electric power systems C1180 Optimisation techniques
中文摘要	The function of static state security analysis for the traditional energy management system (EMS) is enhanced, and a static state security early warning and preventive control subsystem is designed and implemented. The subsystem can evaluate power system operation's security level and identify insecure cases in real time. Further more, countermeasures for the insecure cases are also given. The problem of power flow unsolvability due to heavy load for certain contingencies, which represent the most severe cases, is investigated. Based on the minimum mismatch function and successive linear programming method, a practical algorithm is developed to restore power flow from unsolvability. A digital simulation on an actual provincial power system is made to demonstrate feasibility and applicability of the method proposed. The method proposed has been embedded in an early warning and security countermeasure system running in a control center of a provincial power grid. This work is supported by Special Fund of the National Basic Research Program of China (No. 2004CB217904) and National Natural Science Foundation of China (No. 50595414).
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/123456789/10991]
专题	清华大学
推荐引用方式 GB/T 7714	Liu Mingsong,Wu Wenchuan,Zhang Boming,et al. An online preventive control method for power flow unsolvability[J],2010, 2010.
APA	Liu Mingsong,Wu Wenchuan,Zhang Boming,Wu Sunong,&Liu Yingshang.(2010).An online preventive control method for power flow unsolvability..
MLA	Liu Mingsong,et al."An online preventive control method for power flow unsolvability".(2010).

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