摘要
针对因灾害导致配电网大面积停电,无法通过主网恢复非故障停电区域供电的情况,建立了基于应急发电车作为补充电源的微电网动态供电恢复方案。分析了微电网运行的控制方式与分布式电源之间的并网组合的方案,在电网发生故障出现大范围停电时,通过广度优先搜索的方法对孤岛进行划分以恢复停电负荷的供电,考虑到分布式电源发电的间歇性和负荷需求的变动性,采用应急发电车作为补充电源以满足孤岛内的"供需平衡"。仿真结果验证了所提方法的有效性。
Aiming at the large area power failure of distribution network caused by disasters,which couldn’t recover the power supply of non-malfunction power failure area through the major network,this paper established the microgrid dynamic power restoration scheme based on emergency generators as supplementary power supply and analyzed the grid-connected combination scheme between the control method of microgrid operation and distributed power supply.When the large-scale power outages of distribution networks happened,the breadth-first search method was used to carry out partition for the islands to recover the power supply of power outage loads.Considering the intermittency of the distributed power generation and the change of the load demand,the emergency power generation vehicle was used to meet the balance of supply and demand.The simulation result verifies the effectiveness of the proposed method.
作者
齐亮
吴娆
QI Liang;WU Rao(Shouguang City Power Supply Company,State Grid Shandong Electric Power Company,Shouguang 262700,China)
出处
《电工电气》
2019年第2期29-34,共6页
Electrotechnics Electric
关键词
配电网
孤岛运行
灾害
应急发电车
distribution network
island operation
disaster
emergency generators
