摘要
电网拓扑结构作为承载电气运行量的主体,和电气状态量一起成为影响电网灾难性事故的两个关键因素。在着重关注运行状态的风险评估之后,以复杂网络理论为基础,综合考虑结构状态和运行状态的方法得到研究人员的广泛关注。以电网拓扑结构和电气运行量的评估指标为切入点,对各种评估方法的思想、方法手段、目的进行了类比、评述。指出了在分析电网灾难性事件中,将电网运行状态耦合到电网拓扑结构上是全面系统评估电网连锁故障严重度的关键。而采用拓扑剖分的方法,将复杂电网分为若干单元系统,再采用不确定风险分析的方法将各个单元系统有机整合,在单元系统层面来分析电网灾难事故的严重性可能是一条有效途径;并指出了今后值得注意的研究方向。
Grid topology which is the principle part of carrying electrical operation capacity, and electrical state capacity are two key factors to influence the catastrophic failures in power grid. After focusing on risk assessment of operating condition and based on complex network theory, the methods synthetically considering topology state and operating condition are obtained close attention by researchers. Taking the evaluation indices of grid topology and electrical operation capacity as the cut - in point, the ideas, means and purposes of various assessment methods are analogized and reviewed. It is pointed out that during analyzing grid catastrophic events, using the operating condition of power grid coupled to the grid topology is crucial for the comprehensive assessment of the severity of grid cascading failures. Based on topological triangulation method, the complex power grid is divided into several modules, then the module systems are integrated by uncertain risk analysis method, and making the analysis of grid catastrophic failures on the module systems level may be effective. In the end, the research direction which should be noted in the future are proposed.
出处
《四川电力技术》
2011年第5期20-25,53,共7页
Sichuan Electric Power Technology
