Study on the optimization of maintenance strategy based on life cycle cost estimate of transformer
Zhang Han1, Qian Hai1, Chang An1, Zhou Quan2, Sun Chao2 , Wang Youyuan2
COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(12C) 390-394
1 China South Grid Extra High Voltage Transmission Ltd., Guangzhou, China
2 State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, China
As the key equipment of power system the status of power transformer impacts the security and stability of the grid. Make appropriate maintenance strategies for life cycle according to its operating status is important for the safe operation of the power grid. The power transformer life cycle cost (LCC) is analyzed through the establishment of the power transformer LCC decomposition model from the perspective of the life-cycle management. The cost - effectiveness of maintenance strategy is studied based on the analysis of maintenance costs and military age change under different maintenance level. Then a power transformer maintenance cost-performance optimization model and introduce genetic algorithm to solve the model. The maintenance optimization model operational, scientific and effective through case studies.