摘要：在“碳达峰、碳中和”背景下，预制舱变电站的设计理念符合绿色、低碳、环保的发展趋势，在电力系统建设中得到了广泛应用。首先，基于全寿命周期成本理论，建立了预制舱变电站的全寿命周期成本模型，明确预制舱变电站全寿命周期成本（LCC）的构成。其次，系统分析了影响预制舱变电站LCC变化的因素，并对LCC进行敏感性分析。然后，以降低LCC、控制风险、提高经济效益为目标，基于PSO算法建立LCC优化模型并求解优化后的LCC。在满足可靠性和运行稳定性的前提下对LCC进行优化，为预制舱变电站全寿命周期成本控制提供了理论基础，为预制舱变电站的建设运行提供参考。

关键词：预制舱变电站；全寿命周期；成本测算模型；技术经济指标；敏感性分析；成本优化

Abstract：Under the background of "carbon peaking and carbon neutrality"，the design concept of prefabricated substations aligns with the development trend of green，low-carbon，and environmentally friendly practices，and has been widely applied in power system construction. Firstly，based on the theory of life-cycle cost（LCC），a LCC model for prefabricated substations is established，clarifying the composition of the LCC. Secondly，the factors affecting the LCC variation of prefabricated substations are systematically analyzed，and a sensitivity analysis of LCC is conducted. Then，with the goals of reducing LCC，controlling risk，and improving economic efficiency，an LCC optimization model is established based on the PSO algorithm，and the optimized LCC is solved. Optimizing LCC under the premise of meeting reliability and operational stability provides a theoretical basis for the LCC control of prefabricated substations and a reference for the construction and operation of prefabricated substations.

Keywords：prefabricated substation；life-cycle cost；cost calculation model；technical and economic indicators；sensitivity analysis；cost optimization

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