大型光伏電站集電線路經濟電流密度計算
張彥昌，石巍，王杰，林浩
中國電力工程顧問集團 中南電力設計院，湖北 武漢 430071
摘 要：由于光伏電站的特點和經濟技術發展對經濟電流密度計算參數的影響，現有的手冊、標準和規范上的經濟電路密度曲線已不能滿足光伏電站經濟電流截面的選擇。考慮相關因素的影響，通過實例對大型光伏電站的集電線路進行經濟電流密度計算，進而根據集電線路的載流量選擇其經濟截面，對該截面進行壓降檢驗，均滿足了規范要求。
關鍵詞：大型光伏電站；集電線路；經濟電流密度曲線；經濟截面
中圖分類號：TM615；TM751 文獻標識碼：B 文章編號：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
參考文獻
[1] DL/T 5222—2005 導體和電器選擇設計技術規定[S].
[2] GB 50217—2007 電力工程電纜設計規范[S].
