电力建设2017，Vol.38Issue(6)：59-65,7.DOI:10.3969/j.issn.1000-7229.2017.06.009
直流配电电压等级及负荷距分析
Voltage Stage and Load Distance for DC Distribution Network
摘要
Abstract
Compared with AC distribution system,the DC distribution technology has obvious advantages on reliability,power supply capacity,power supply distance and economy.Firstly,this paper analyzes the voltage grade of DC distribution network and its research status from aspects of all kinds of distributed power supply,typical DC load,DC microgrid system and related voltage standards at home and abroad,etc.Through analyzing the main influence factors on the voltage grade of DC distribution network,this paper proposes the constraint conditions and the DC voltage grade based on the marching principle of the transmission capacity of AC/DC distribution system.According to the proposed constraint conditions,the verification analysis on transmission capacity,transmission distance and the applicability of DC distribution equipment shows that the proposed voltage grade is effective.To simplify the planning and design,this paper calculates the DC load distance of each typical conductor section when the proposed voltage grade of DC distribution network meets the 10% voltage deviation on power line terminal.关键词
直流配电电压等级/输送容量/输送距离/直流负荷距Key words
voltage grade of DC distribution network/transmission capacity/transmission distance/DC load distance分类
信息技术与安全科学引用本文复制引用
姜世公,吴志力,李红军,王云飞,郑浩..直流配电电压等级及负荷距分析[J].电力建设,2017,38(6):59-65,7.基金项目
国家电网公司科技项目(SGAH0000KJJS201600091) （SGAH0000KJJS201600091）
