Research On Substation Engineering Design Scheme:A Total Life Cycle Cost Perspective

Power supply system belongs to basic public service industry,the core business of grid state is the construction and operation of the power grid,which is the backbone enterprise of the national economy and energy security.The substation as a power grid hub,the engineering design of a wide range of technical solutions,how to use the appropriate comparison model to distinguish between the merits of the program,combine with different engineering conditions reasonable choice of distribution equipment,optimize assets application,is the objective and practical needs of power construction.Based on the classical model of life cycle cost,which includes investment costs,operation costs,failure costs and discard costs,this paper proposes a life-cycle improvement model considering multi-scenario,and combines enterprise outcome index and process index,building a new evaluation system based on safety,efficiency and cost.Based on this system and the life cycle cost,four main engineering design schemes of the A substation in Pt City are analyzed and calculated in depth,method the similarities and differences is compared,and then order scheme finally.This paper introduces the concept of the life cycle of the asset,and integrates the cost of equipment outage,multi-scenario into the calculation.It strengthens the consideration of the future and the corresponding calculation method,and estimates the cost of the substation project.The integrated value of different engineering design schemes can provide data support and decision support for enterprise management.At the same time,combining with the indicators of corporate governance,such as income,safety,efficiency and cost,the engineering design scheme of substation is more standardized,which greatly avoids the subjectivity of decision-making.It can provide further quantitative results and powerful reference for the selection of the engineering design of substation.