摘要
电网信息物理高度融合背景下,为了降低电力信息物理系统发生跨空间连锁故障的风险,提出一种计及储能配置的连锁故障阻断控制优化策略。首先,基于电力系统可观可控性构建信息物理多重交互机理,并根据系统间交互阐明过载主导型连锁故障的演化过程。同时在现有调控手段基础上考虑储能入网对连锁故障阻断控制的影响。并将阻断控制表述成多阶段最优潮流问题,获得兼顾安全性与经济性的连锁故障控制方案。采用IEEE-118节点系统对不同控制策略进行对比,验证了所提控制优化策略的有效性,并分析了储能规模对阻断控制的影响。
In the context of the high integration of information technology into power systems,an optimization strategy considering energy storage configuration for blocking control was proposed to mitigate the risk of cascading failures in cyber-physical power systems.Firstly,based on the observability and controllability of the power system,the multi-level interaction mechanism of information and physics was constructed,and the evolution process of cascading failure dominated by overload was clarified according to the interaction among systems.At the same time,the influence of energy storage connected to the power system on cascading failure blocking control was considered based on the existing regulatory means.The blocking control was described as a multi-stage optimal power flow problem,obtaining a cascading failure control scheme that balances safety and economy.The comparison of different control strategies on the IEEE-118 node system demonstrated the effectiveness of the proposed control optimization strategy and analyzed the impact of energy storage scale on blocking control.
作者
王岩
李琰
徐天奇
WANG Yan;LI Yan;XU Tian-qi(The Key Laboratory of Cyber-Physical Power System of Yunnan Colleges and Universities,Kunming 650504,China)
出处
《科学技术与工程》
北大核心
2024年第7期2775-2781,共7页
Science Technology and Engineering
基金
国家自然科学基金(62062068)。
关键词
储能技术
电力信息物理系统
连锁故障
阻断控制
最优潮流
energy storage
cyber-physical power system
cascading failure
blocking control
optimal power flow
