面向农村偏远电网的输电线路交改直技术方案研究Research on AC-DC Transformation Scheme for Distribution lines in Rural Power Grid
丁超,陆翌,胡萨萨,裘鹏,许烽,宣佳卓
DING Chao,LU Yi,HU Sasa,QIU Peng,XU Feng,XUAN Jiazhuo
摘要(Abstract)：
农村偏远地区由于远离配电网核心区域,输电线路较长,设备陈旧,导致供电可靠性低、电能质量差。对此,提出采用柔性直流配电网技术对现有偏远农村地区供电进行改造的方案。从经济性角度出发,指出采用将原有交流线路改造成直流线路的方式,可降低建设成本,并给出了4种改造后的直流配电网拓扑结构。最后对所提出的4种拓扑结构进行多维度对比和总结,可为实际工程规划与分析提供参考。
Due to the long distance of transmission lines and outdated equipment, remote rural areas are far away from the core distribution network, resulting in low power supply reliability and poor power quality.Therefore, this paper first introduces the use of flexible DC distribution network technology to transform the existing remote power supply of rural areas. Then, for economical purposes, the transformation from original AC lines into DC lines aims to reduce the construction cost, and four modified DC power distribution structures are given. Finally, multi-dimensional comparison and summary of the four topologies are conducted to provide a reference for practical engineering planning and analysis.
关键词(KeyWords)：
农村电网;交改直;直流配电;拓扑结构;换流器
rural power grid;AC-DC transformation;topology;converter
基金项目(Foundation):
作者(Author):
丁超,陆翌,胡萨萨,裘鹏,许烽,宣佳卓
DING Chao,LU Yi,HU Sasa,QIU Peng,XU Feng,XUAN Jiazhuo
DOI: 10.19585/j.zjdl.201906010
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