基于孤岛划分约束的有源配电网故障恢复策略
Fault Recovery Strategy of Active Distribution Network Based on Islanding Algorithm
刘科研 1贾东梨 1李昭 1毛润宇 2龙江 2吴敏 2尹忠东2
作者信息
- 1. 中国电力科学研究院有限公司,北京 100192
- 2. 北京科力源能源技术有限公司,北京 102206
- 折叠
摘要
为提高供电恢复效果,更好地应对当前有源配电网信息-物理耦合程度不断加深的形势,提出了一种考虑信息流、能量流、业务流多流融合以及智能软开关(soft open point,SOP)作用的孤岛划分算法,基于该算法实现供电恢复策略.首先,为保证负荷的可靠恢复,该策略深入研究信息-物理耦合并建模,对节点信息重要度排序,讨论其对负荷恢复的影响;其次,构建了 SOP的稳态模型,分析了 SOP的工作原理及控制模式;接着,为了更大程度、更加灵活地恢复负荷,考虑SOP的作用,建立考虑光伏时变性及负荷运行特性的有源配电网孤岛划分模型;最后,算例仿真验证所提策略的有效性.
Abstract
In order to enhance the effectiveness of power supply recovery and better address the deepening information-physical cou-pling in active distribution networks,an island partitioning algorithm is proposed.This algorithm takes into account the multi-flow fu-sion of information flow,energy flow,service flow,and the function of SOP(soft open point).Firstly,to ensure reliable load recovery,the strategy thoroughly examines information-physical coupling and models it by ranking the importance of node information and discus-sing its impact on load recovery.Secondly,a steady-state model of SOP was constructed,analyzing its working principle and control mode.Then,considering the role of SOP for restoring load to a greater degree and more flexibly,an active distribution network island division model was established that considers PV(photovoltaic)time variability and load operation characteristics.Finally,a simula-tion example was provided to verify the effectiveness of this proposed strategy.
关键词
多流融合/智能软开关/节点重要度排序/有源配电网/孤岛划分Key words
multistream fusion/soft open point/node importance ranking/active distribution network/island division引用本文复制引用
基金项目
国家电网有限公司总部科技项目(5400-202122147A-0-0-00)
出版年
2024
NETL
NSTL
万方数据