【摘要】 在城市变电站建设中,提高变电站供电能力一直是研究的重点。结合当前城网变电站建设中遇到的问题,分析通过提升城网220 k V变电站10 k V侧直供能力以优化城市变电站布点,形成一种新型城区变电站建设方案。并与常规220 k V变电站方案、直降20 k V的220 k V变电站方案进行对比分析,认为该方案适用于高负荷密度城区220 k V变电站的规划建设。最后以广州某220 k V变电站为例进行了分析说明,为城区变电站建设提供参考。更多还原

【Abstract】 Improving power supply capability has been a focus of study in the construction of substations in urban areas. According to the problems of urban substations, a new type of construction scheme of urban substation is proposed through improving the direct power supply capability on the10 k V side of 220 k V substation, which is aimed to optimize the location of the substations in urban areas. Based on a comparison among the proposed scheme, the conventional 220 k V substation scheme and the 220 k V substations scheme which exports in 20 k V, it can be concluded that the proposed scheme is suitable for planning and construction of 220 k V substations in the urban area with high load density. Finally, a case study is conducted on a 220 k V substation in Guangzhou, which may provide references for the construction of substation in urban areas.更多还原