摘要
为了在配电网故障时最大限度地对重要负荷供电,提出了分布式电源的孤岛划分模型,利用广度优先搜索算法和深度优先搜索算法相结合对分布式电源进行孤岛划分;接着建立了以开关操作次数最少及故障后负荷恢复量最大为目标的多目标故障恢复模型,对目标函数进行了归一化及线性加权处理,采用差分进化算法对故障恢复模型进行求解。最后采用IEEE33节点配电网进行孤岛划分,并对配电网中不同位置发生的故障进行了孤岛运行和网络重构,最大限度地恢复了网络供电,从而验证了孤岛划分模型和故障恢复模型及其算法的有效性。
In order to ensure the power supply of important load to the great extent when fault happens,island partition model of distributed power generation is proposed and solved by the combination of breadth first search and depth first search.In addition,two objectives of minimizing switch operation times and maximizing black-load supply mentioned in fault restoration model are changed into one objective by normalization and linear weighted method.The model is solved by differential evolution algorithm.Through IEEE 33-node distribution network,we verified the effectiveness of distributed power generation＇s island partition model and restoration model.
出处
《水电能源科学》
北大核心
2015年第11期192-196,共5页
Water Resources and Power
基金
国家高技术研究发展计划(863计划)课题(2014AA051901)
关键词
分布式电源
孤岛划分
孤岛运行
配电网
故障恢复
distributed power generation
island partition
island operation
distribution network
fault restoration
