1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400030 China 2. China Electric Power Research Institute Beijing 100085 China
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.
张镱议，廖瑞金，杨丽君，孟繁津，李金忠，程涣超. 综合考虑可靠性与经济性的电力变压器检修方案优选[J]. 电工技术学报, 2014, 29(11): 191-200.
Zhang Yiyi,Liao Ruijin,Yang Lijun,Meng Fanjin,Li Jinzhong,Cheng Huanchao. Maintenance Decision Making of Power Transformer by Integrated Considering Reliability and Economy. Transactions of China Electrotechnical Society, 2014, 29(11): 191-200.
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2014, Vol. 29 
