考虑闭式潮流优化分布的主动配电网供电恢复方法  

Power supply recovery method of active distribution network considering optimal distribution of closed-loop power flow

作　　者：毛志鹏 孙建军[1] 黄志强[1] 查晓明[1] 黄萌[1] 郭佳雪 沈煜 MAO Zhipeng;SUN Jianjun;HUANG Zhiqiang;ZHA Xiaoming;HUANG Meng;GUO Jiaxue;SHEN Yu(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;State Grid Hubei Electric Power Research Institute,Wuhan 430077,China)

机构地区：[1]武汉大学电气与自动化学院,湖北武汉430072 [2]国网湖北省电力有限公司电力科学研究院,湖北武汉430077

出　　处：《电力自动化设备》2024年第8期109-115,共7页Electric Power Automation Equipment

基　　金：国家电网公司科技项目(5400-202199281A-0-0-00)。

摘　　要：主动配电网具有灵活的调节能力和快速可靠的运行能力,但柔性多状态开关(SOP)、分布式电源等多种设备的存在,使供电恢复模型复杂,需要研究故障后供电恢复快速决策方法。提出了一种考虑闭式潮流优化分布的主动配电网负荷恢复方案快速决策方法。模拟故障切除后配电网所有联络开关闭式运行状态,基于二阶锥规划求解最优潮流,退出电压低、传输功率小的线路,形成利于供电恢复的配电网含SOP良性网络拓扑。建立基于负荷的功率因数与分级负荷权重的负荷恢复模型,制定负荷供电恢复方案,保证失电负荷严格按优先级获得最大的恢复水平。通过IEEE33、IEEE69节点配电系统进行算例分析,结果表明所提方法能兼顾计算的准确性和快速性。Active distribution network has flexible adjustment ability as well as fast and reliable operation ability.But the existence of soft open point(SOP),distributed generator and other equipments makes the power supply recovery model complex.It is necessary to study the fast decision-making method of power supply recovery after failure.A fast decision-making method for active distribution network load recovery scheme considering optimal distribution of closed power flow is proposed.The closed operation state of all the tie switches in the distribution network after fault removal is simulated,and the optimal power flow is solved based on the second-order cone programming to exit the lines with low voltage and small operating capacity,in order to form a benign network topology with SOP in the distribution network conducive to power supply recovery.A load recovery model based on load power factor and graded load weight is established.A load power supply recovery scheme is formulated to ensure that the off-power load can get the maximum recovery level strictly according to the priority.The simulative results of IEEE 33-bus distribution system and IEEE 69-bus distribution system show that the proposed method can be both accurate and fast.

关 键 词：供电恢复 主动配电网 柔性多状态开关 二阶锥规划 配电网络重构 

分 类 号：TM714[电气工程—电力系统及自动化]