变压器全生命周期成本分析及优化

Life Cycle Cost Analysis and Optimization of Transformers

变压器是电网的核心设备,分析并优化变压器全生命周期成本(life cycle cost, LCC)对于电网经济效益改善具有重要意义。依据LCC理论结合变压器的相关费用支出状况,首先构建出变压器LCC模型;然后对变压器LCC进行分析,包括不同电压等级下的成本规律分析及成本比例分析;最后使用MATLAB软件并采用鲸鱼优化算法(whale optimization algorithm, WOA)对目标函数进行优化。算例验证了WOA的科学合理性及优越性,该算法对于工程实际中变压器LCC管控有一定的指导作用,是提高电网资产管理效率的重要手段。

Transformer is the core equipment of the power grid,it is of great significance analyzing and optimizing transformer life cycle cost(LCC)for the improvement of economic efficiency of power grids.Based on the theory of LCC and the related costs of transformer,this paper firstly constructs the LCC model of the transformer;then analyzes its LCC,including the analysis of cost patterns and cost ratios under different voltage levels.Finally,the paper uses MATLAB software and the the whale optimization algorithm(WOA)to optimize the objective functions.The calculation example verifies the scientific reasonableness and superiority of the WOA,which has a certain guiding funcion for the control of LCC of the transformer in the engineering practice,and it is an important means of improving the efficiency of the power grid asset management.