大型光伏电站集电线路的经济电流密度计算  

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

作　　者：张彦昌[1] 石巍[1] 王杰[1] 林浩[1] 

机构地区：[1]中国电力工程顾问集团中南电力设计院,武汉市430071

出　　处：《电力建设》2013年第3期50-53,共4页Electric Power Construction

摘　　要：大型光伏电站组件布置面积大,其集电线路的造价比重相对也较大,而且光伏上网电价较高,其电能损耗也较大,因此对集电线路经济截面的选择较为重要。由于技术经济方面的变化及使用条件的限制,目前设计规程上的经济电流密度曲线已不能满足光伏电站集电线路经济截面的选择。通过参数更新,计算得到了光伏电站集电线路的经济电流密度,为光伏电站设计提供了参考。For the large-scale photovoltaic power station, the cost of collecting power line has a large proportion and the electric energy loss is high due to the high generation price of photovoltaic power, so the selection of economic section is important for collecting power line. Because of the change of technology and economy and the limit of application condition, the economic current density curve in existing electrical rule or code can not satisfy the selection of economic section for collecting power lines. Through parameter updating, the economic current density is calculated, which could provide references for the design of photovoltaic power station.

关 键 词：大型光伏电站 集电线路 经济电流密度 

分 类 号：TM615[电气工程—电力系统及自动化]