采用节能导线的输电线路全寿命周期成本分析OA北大核心CSTPCD

Over the past two decades,the length of transmission lines in China has increased significantly.When constructing line projects,economic costs are one of crucial considerations.This paper compares and analyzes the economic cost differences between using JL/G1A-400/35 steel-core aluminum stranded wire and JL(GD)/G1A-400/35 steel-core high-conductivity aluminum stranded wire in a new 220 kV line project in A city of Liaoning province by constructing a quantitative model of the whole life cycle cost(LCC)of the transmission line project.It uses linear regression analysis,grey prediction GM(1,1)model,and autoregressive integrated moving average(ARIMA)model to forecast the load level of transmission lines during the operation period of the project,and determines the electricity sales benefits of the project under the combined forecasting and analysis method.Meanwhile,it quantizes the carbon reduction benefits of energy-saving conductors and analyzes the sensitivity of the operation cost of the transmission line on the level of load growth,weather conditions and altitude.It also compares and evaluates the economic indicators of the two conductor technology schemes.The research results indicate that steel-core high-conductivity aluminum stranded wire can serve as an energy-saving conductor,reducing operation and maintenance costs for transmission line projects.Additionally,it provides carbon reduction benefits and has good economic and low-carbon performance throughout the project's life cycle,while also considering the benefits of electricity sales.