摘要
变电站是由一系列不同类型的电气设备通过导线相互连接组成的复杂系统。为了研究变电站系统整体的抗震性能,文中提出一种结合图论、故障树和成功路径的系统分析方法。该方法基于变电站中各个电气设备布置、连通逻辑关系和电力传输路径,建立整个变电站的有向图逻辑模型,以能正常输出的线路数量作为变电站的性能评价指标,结合设备层面的地震易损性曲线,利用蒙特卡洛模拟实现对变电站系统层面的地震易损性分析。通过该方法对典型220kV变电站进行地震易损性分析,得到变电站系统在不同性能状态下的地震易损性曲线,并通过设备的重要度分析指出变电站系统的抗震薄弱环节。
A substation is a complex system composed of a series of different types of electrical equipment interconnected by conductors. In order to study the seismic performance of substation as a whole system, this paper proposed a new system analysis method combining graph theory, fault tree and success path. In the proposed method, a directed graph logic model of the entire substation was built based on the location and connection logic relationship of each electrical equipment and the power transmission path in the substation. Regarding the number of out-lines that can function normally as the performance evaluation index of the substation, the seismic vulnerability analysis of the substation can be obtained based on the seismic vulnerability curve at the device level by the Monte Carlo simulation method. A case study was carried out on a typical 220 kV substation by this method and vulnerable points of seismic resistance of the substation system were pointed out through sensitive analysis.
作者
梁黄彬
谢强
LIANG Huangbin;XIE Qiang(College of Civil Engineering,Tongji University,Yangpu District,Shanghai 200092,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2020年第23期7773-7781,共9页
Proceedings of the CSEE
基金
国家自然科学基金项目(51878508)。
关键词
变电站系统
有向图逻辑模型
蒙特卡洛模拟
地震易损性
性能评价指标
substation system
directed graph logic model
Monte Carlo simulation
seismic vulnerability analysis
performance evaluation index
