大型光伏电站集电线路经济电流密度计算 

张彦昌，石巍，王杰，林浩 
中国电力工程顾问集团 中南电力设计院，湖北 武汉 430071 
 

摘 要：由于光伏电站的特点和经济技术发展对经济电流密度计算参数的影响，现有的手册、标准和规范上的经济电路密度曲线已不能满足光伏电站经济电流截面的选择。考虑相关因素的影响，通过实例对大型光伏电站的集电线路进行经济电流密度计算，进而根据集电线路的载流量选择其经济截面，对该截面进行压降检验，均满足了规范要求。
关键词：大型光伏电站；集电线路；经济电流密度曲线；经济截面
中图分类号：TM615；TM751 文献标识码：B 文章编号：1007-3175(2013)02-0031-04

Economic Current Density Calculation of Power-Collecting Line in Large-Scale Photovoltaic Power Station 

ZHANG Yan-chang, SHI Wei, WANG Jie, LIN Hao 
Central Southern China Electric Power Design Institute of China Power Engineering Consulting Group, Wuhan 430071, China 
 

Abstract:Since features of photovoltaic station and economic technology development have impacts on economic current density calculation parameters, the existing economic current density curves of hand-books, standards and regulations could not meet the selection of photovoltaic station economic current section. In consideration of impacts of related factors, this paper carried out economic current density calculation for large-scale photovoltaic station’s power collecting lines via actual case, then according to carrier flow, its economic section was selected, voltage reduction test was carried out, to meet regulation requirements.
Key words: large-scale photovoltaic station; power-collecting line; economic current density curve; economic section

参考文献
[1] DL/T 5222—2005 导体和电器选择设计技术规定[S].
[2] GB 50217—2007 电力工程电缆设计规范[S].