基于离散随机Petri网的电网应急辅助决策系统时间性能分析  

Time Performance Analysis of Power Grid Emergency Aided-Decision System Based on Discrete Stochastic Petri Net

作　　者：陆明明 苏喆 尚敬福[2] 

机构地区：[1]北京市供电公司,北京市西城区100031 [2]国家电网公司交流建设分公司,北京市宣武区100052

出　　处：《电网技术》2010年第4期105-109,共5页Power System Technology

摘　　要：引入离散随机Petri网理论,研究了随机Petri网内部等效化简技术,初步建立了我国典型电网应急辅助决策系统的Petri网模型。根据联合反事故演习的相关统计数据设定了模型参数,得到了电力应急辅助决策时间的概率分布,并通过分析其随机数字特征对时间性能进行评价。文中所提的评价方法适用于一般意义上的时间约束和各种随机分布。该方法为分析电力应急辅助决策系统时间性能提供了一套有效的数值计算方法。Through leading in discrete stochastic Petri net theory, the internal equivalence and simplification technique for stochastic Petri net is researched, and a Petri net model of emergency aided decision-making system for typical power grids in China is preliminarily built. According to statistical data of joint anti-accident rehearsals, the parameters of the model are set, and the probability distribution of emergency aid decision-making time is obtained, and then by means of analyzing its random numerical characteristics the time performance is evaluated. The proposed evaluation method is suitable to general time constraint and various random distributions, and it offers a set of effective numerical calculation method for the analysis on the performance of power grid emergency aided-decision system.

关 键 词：PETRI网 应急反应 时间性能 

分 类 号：TM74[电气工程—电力系统及自动化]