互联电力系统可靠性评估的改进等效模型

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Abstract The reliability evaluation equivalence for interconnected power system is researched in detail. An improved equivalent model including equivalent generators, equivalent transmission lines and equivalent loads is proposed for the external system. Putting outage load of the external system to improve the parameter calculation. The parameter calculation process is established by the use of the network flow method. Based on the not loss of load sharing agreement, a new method of combining equivalent states is presented to evaluate the reliability for interconnected power system, and then the conclusion is drawn: ①the addition of equivalent transmission capacity parameter and the improvement of the parameters calculation method can reflect the risk condition in external system more accurately. ②the new method of combining equivalent states can guarantee a certain accuracy and improve computation speed as well. The proposed approach is applied to RBTS test system, and the results show that the method is correct and feasible.

Key words： Interconnected power system reliability equivalent mode equivalent transmission capacity

Received: 10 July 2009 Published: 07 March 2014

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TM732

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	Articles by authors
	Wang Xingqiang
	Ding Ming
	Han Pingping

Cite this article:

Wang Xingqiang,Ding Ming,Han Pingping. An Improved Equivalent Model for Reliability Evaluation in Interconnected Power System[J]. Transactions of China Electrotechnical Society, 2011, 26(9): 201-207.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I9/201

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