综合考虑可靠性与经济性的电力变压器检修方案优选

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Abstract Reliability and economy of power transformers are not reasonably considered in the condition based maintenance problem recently. Towards this problem,a model considering reliability and economy is established to select the best maintenance strategy of a transformer. With the corrected parameters,a condition assessment model including DGA test,oil test and electrical test is applied to decide the health index of the transformer. After building the relationship between the fault ratio and the health index,a minimum optimization model including the financial loss risk of the transformer is established to simulate the maintenance effect. A particle swarm optimization method is developed to choose the best maintenance strategy of the transformer. A case is studied and the result demonstrates that the proposed method is reasonable and it offers a new thinking to the risk based maintenance.

Key words： Power transformer condition maintenance fault ratio health index risk based maintenance particle swarm optimization

Received: 11 May 2013 Published: 22 January 2015

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TM41

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	Articles by authors
	Zhang Yiyi
	Liao Ruijin
	Yang Lijun
	Meng Fanjin
	Li Jinzhong
	Cheng Huanchao

Cite this article:

Zhang Yiyi,Liao Ruijin,Yang Lijun等. Maintenance Decision Making of Power Transformer by Integrated Considering Reliability and Economy[J]. Transactions of China Electrotechnical Society, 2014, 29(11): 191-200.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I11/191

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