计及信息-能量耦合节点重要度的主动配电网灾后孤岛划分方法  

Island partition method of active distribution network after disaster considering importance of information-energy coupling nodes

作　　者：吴振华 边晓燕 周波 徐波 林毅 林伟伟 WU Zhenhua;BIAN Xiaoyan;ZHOU Bo;XU Bo;LIN Yi;LIN Weiwei(College of Electric Power Engineering,Shanghai University of Electric Power,Shanghai 200090,China;Economic and Technology Research Institute of State Grid Fujian Electric Power Co.,Ltd.,Fuzhou 350012,China)

机构地区：[1]上海电力大学电气工程学院,上海200090 [2]国网福建省电力有限公司经济技术研究院,福建福州350012

出　　处：《电力自动化设备》2023年第2期74-81,共8页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51977127);上海市青年科技英才扬帆计划项目(21YF1414700)。

摘　　要：针对自然灾害导致的主动配电网连锁故障问题,提出了一种计及信息-能量耦合节点重要度的主动配电网灾后孤岛划分方法,以实现对重要节点的持续供电。基于电力网络与电力通信网的耦合关系,以电力网络为基础网,构建分布式信息物理系统的网络架构,并结合能量流与信息流二者的业务特征,通过主客观相结合的赋权方法得到耦合节点的重要度;基于全局信息发现模型,通过局部信息交换获取全局信息以完成孤岛划分模型输入参数的获取,满足灾后的通信需求;通过控制自动开关设备、分布式电源(DG)和储能的开关状态,将主动配电网划分为多个由DG或DG与储能协同供电的微电网,以实现等效恢复负荷的最大化。通过算例仿真验证了所提方法的有效性。Aiming at the chain failures of active distribution network caused by natural disasters,an island partition method of active distribution network after disaster considering the importance of informationenergy coupling nodes is proposed to realize the continuous power supply to important nodes. Based on the coupling relationship between power network and power communication network,the network architecture of distributed cyber-physical system is constructed with power network as the basic network. Combining the business characteristics of energy flow and information flow,the importance of coupling nodes is obtained by the weighting method combining subjective and objective. Based on the global information discovery model,the global information is obtained through local information exchange to complete the acquisition of the input parameters for the island partition model and meet the communication requirements after disaster.By controlling the switching state of automatic switchgear,distributed generation(DG) and energy storage,the active distribution network is divided into several microgrids powered by DG or DG in cooperation with energy storage to maximize the equivalent recovery load. The effectiveness of the proposed method is verified by the example simulation.

关 键 词：主动配电网 分布式信息物理系统 孤岛划分 信息-能量耦合 节点重要度 混合整数线性规划 自然灾害 

分 类 号：TM732[电气工程—电力系统及自动化]