摘要
传统的计算方法未考虑线路检修费用、线路退役费用、电价、导线价格等重要参变量的时间价值,导致电流密度取值较大,为此,提出基于总成本费用综合评价模型的经济电流密度计算方法。将线路的总成本费用分为初次投入成本、运行人工及维护成本等成本模块,每个模块分别表示为与线路截面、时间等因素相关联的表达式,从而推导出输电线路总成本费用的经济电流密度表达式。通过总成本费用模型对一条已建成的线路进行了验证,证明了方法的合理性和可行性。改进的计算方法对实际工程选型方案的确定有一定的参考价值。
The traditional calculation method doesn′t takes into account the time value of important parameters such as line maintenance costs,line decommissioning costs,electricity prices,conductor prices,etc.,resulting in a big calculated current density,so an economic current density calculation method based on total cost comprehensive evaluation model is proposed.The total cost of the line is divided into cost modules such as initial input costs,operating labor and maintenance costs.Each module is expressed as an expression related to factors such as line cross-section,time,etc.,thereby deriving an economic current density expression of the total cost of the transmission line.The total cost model is used to verify an established line,and the rationality and feasibility of the method are proved.It provides reference for the practical engineering type-selecting scheme.
作者
樊浩
王永生
陈金辉
FAN Hao;WANG Yongsheng;CHEN Jinhui(Skills Training Center,Northern Hebei Province and Power Company Limited,Baoding,Hebei 071051,China)
出处
《河北工业科技》
CAS
2020年第1期27-33,共7页
Hebei Journal of Industrial Science and Technology
关键词
输配电工程
经济电流密度
总成本费用
截面
评价模型
transmission and distribution engineering
the economic current density
total cost
section
evaluation model
