基于全寿命周期成本和综合故障率的油浸式变压器经济寿命评估  

Economic Life Evaluation of Oil-immersed Transformer Based on Life Cycle Cost and Comprehensive Failure Rate

作　　者：胡雪莹 李琳[1] HU Xueying;LI Lin(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China)

机构地区：[1]新能源电力系统全国重点实验室(华北电力大学),北京102206

出　　处：《智慧电力》2024年第1期47-54,共8页Smart Power

基　　金：国家自然科学基金资助项目(52177005)。

摘　　要：电力变压器的经济寿命评估对于提高系统与设备运行的经济效益有重要作用。以全寿命周期成本评估为基础,融入环境成本,明确给出各类成本计算方法,在考虑资金时间价值的前提下,将全寿命周期成本等年值最低作为退运依据,建立了更为全面、科学的油浸式变压器经济寿命模型。同时,基于油浸式变压器基准故障率,以计及负载率、设备状态和大修后役龄回退现象的综合故障率作为经济寿命模型的影响因素,并利用粒子群算法迭代确定最佳大修时间,为设备故障率和经济寿命的精确评估提供思路。结合实际算例说明该评估方法是有效可行的,可以为决策者提供详细经济数据。The economic life evaluation of power transformer plays an important role in improving the economic benefits of system and equipment operation.Based on life cycle cost evaluation,this paper clearly gives various cost calculation methods combined with environmental cost.Considering the time value of capital,a more comprehensive and scientific economic life model of oil-immersed transformer is established by taking the minimum equivalent cost of life cycle as the basis of decommissioning.At the same time,according to the baseline failure rate of the oil-immersed transformer,the comprehensive failure rate that takes into account the load rate,equipment condition and service age reduction after overhaul is used as the influencing factor of the economic life model,and the particle swarm optimization algorithm is used to determine the optimal overhaul time iteratively,providing ideas for exactly evaluating the equipment failure rate and economic life.Finally,the effectiveness of the method is verified with a practical example,providing detailed economic data for decision-makers.

关 键 词：油浸式变压器 经济寿命 全寿命周期成本 

分 类 号：TM411[电气工程—电器]