电力系统保护与控制2011，Vol.39Issue(15)：89-95,7.
基于风险理论的配电网静态安全性评估指标研究
Research on static security index of distribution network based on risk theory
摘要
Abstract
Based on the flexibility of distribution network and starting with power supplying security of distribution network, by comparing distribution network with transmission network, the paper indicates that static security analysis of distribution network needs security indices and analysis method, which is different from that of transmission network.Based on risk theory, it proposes the risk indicators of load loss, overload and voltage limit violation combining with the K(N-1+1) criterion and utility theory.Using this method, the paper gives a sub-diagnosis of the safety for system from different aspects, and makes use of Analytic Hierarchy Process (AHP) to draw the whole risk indicator of system as the foundation of the static security analysis.So we can get the integer indicator of the whole system.The paper also discusses the application of risk assessment, and compares the security indicator of different systems using an example.The example shows that the static risk assessment of distribution network is feasible and can calculate the severity of the consequence of accident quantitatively.This index system can reflect the level of system security, and provide the reference for analyzing static security of distribution network.关键词
配电网安全性/风险评估/效用理论/指标Key words
security of distribution network/ risk assessment/ utility theory/ index分类
信息技术与安全科学引用本文复制引用
刘若溪,张建华,吴迪..基于风险理论的配电网静态安全性评估指标研究[J].电力系统保护与控制,2011,39(15):89-95,7.基金项目
国家自然科学基金(50877026) （50877026）
