电网技术Issue(2)：478-485,8.DOI:10.13335/j.1000-3673.pst.2015.02.028
电网运行趋势实时安全评估方法
Real-Time Security Assessment Methods of Power Grid Operation Trends
摘要
Abstract
Under the situations of increasing complexity of power system and more difficulty in real-time control, it is critically needed for security to assess power grid operation trends accurately, rapidly and roundly in a short time. But it could not meet the double requirements of round and rapid assessment through the state indicator or rick indicator. This paper focuses on online real-time operation assessment, and establishes a real-time security assessment method of power grid operation trends based on state indicator system. The proposed method includes preliminary assessment and refined calculation. Preliminary assessment combines fuzzy theory with the obtained region importance indicator through calculation of load importance to determine system operation trends after adverse events and find out the problem region. Refined calculation calculates the indicators of state indicator system belong to the problem region and gets the specifically dangerous indicator. As thus, the double requirements of round and rapid assessments could be met. An example is given to prove validity and feasibility of the proposed method.关键词
安全分析/趋势评估/在线计算Key words
security analysis/trend assessment/online calculation分类
信息技术与安全科学引用本文复制引用
王斌琪,王海霞,徐鹏,卢政麟,杨胜春,李峰,李卫东..电网运行趋势实时安全评估方法[J].电网技术,2015,(2):478-485,8.基金项目
国家电网公司科技项目(DZ71-13-039)。 （DZ71-13-039）
