Study On Life Cycle Cost Of Substation Auxiliary System

With the development of Smart Grid,the substation auxiliary system,as an important part of smart substation,bears the vital task of ensuring safety and reliable operation of substation equipment.The life cycle cost is a typical evaluation methodology of engineering economy;it is also applied in engineering economy systems of every field.The article is based on the life cycle cost theory,lists the constitute of substation auxiliary system,analyzes the status quo of substation auxiliary system,studies the asset life cycle cost of the system,and then finds out the way of technically decreasing the cost,puts forward the suggestion on improving substation auxiliary system,and puts forward the idea of substation auxiliary equipment intelligent monitoring system.The proposal of substation auxiliary equipment intelligent monitoring system model,systematically improves substation auxiliary system at the present stage.The comparison among regular substation auxiliary system,substation intelligent auxiliary system and substation auxiliary equipment intelligent monitoring system,from the perspective of performance,configuration,scale,reliability,convenience,safety and the advantages and disadvantages of life cycle cost,provides some advice on reducing substation auxiliary system equipment cost,curtailing the investment on the life cycle of the substation auxiliary system,improving the level of intellectualizing substation auxiliary system.It is of great significance to carry out the innovation and sustainable development of the life cycle management of assets,and guarantee the safety and reliable operation of substation auxiliary system.