摘要
电力系统元件的实际地震损坏概率是分析电气设备的抗震性能和进行网络抗震风险分析的基础。在地震区划的基础上,结合电气设备易损性曲线,引入结构震害指数的概念,建立了电力系统中变电站主要元件及架空线路在地震情况下的损坏概率分析模型。最后,采用该方法对成都电网的变电站元件及架空线路损坏概率进行计算,并与实际结果进行对比,验证了该方法的有效性。
actual components damage probability of power system in the earthquake is the foundation for seismic situation of electrical equipment and network seismic risk analysis. This article analyzes the characteristics of earthquake disasters, and points out that using seismic zoning is reasonable method for assessing area＇s intensity. Main components of substation and overhead lines in earthquake cases of failure probability analysis model based on seismic zoning are established combining with electrical equipment fragility curve. Finally, failure probability of substation components and overhead lines in Chengdu power grid is calculated with this method proposed. The results are still compared with the actual data which show that the method is effective.
出处
《电网技术》
EI
CSCD
北大核心
2011年第12期38-42,共5页
Power System Technology
关键词
地震区划
变电站
架空线
损坏概率
seismic zonation
substation components
overhead lines
damage probability
