基于时间裕度的全局电力系统暂态安全风险评估  

TRANSIENT SECURITY RISK ASSESSMENT OF GLOBAL POWER SYSTEM BASED ON TIME MARGIN

作　　者：王守相[1] 张伯明[2] 郭琦[2] 

机构地区：[1]天津大学电气与自动化工程学院,天津市南开区300072 [2]清华大学电机工程与应用电子技术系,北京市海淀区100084

出　　处：《中国电机工程学报》2005年第15期51-55,共5页Proceedings of the CSEE

摘　　要：利用预想事故的时间裕度和发生概率定义了预想事故的风险指标,并定义了度量系统在特定类型事故集合下的暂态安全风险指标,然后据此提出了一种对系统进行暂态安全评估的方法。该方法使得将某类型预想事故的评价结果联合起来评估全系统在该类型预想事故集合下的暂态安全性成为可能。计算实例验证了该方法的有效性。An index of risk of contingencies utilizing the time margin of contingency and probability of contingency occurrence is defined, and an index of transient security risk of the system are also defined under certain kind of contingency set. Based on the proposed indices a method of transient security assessment is presented. It makes it possible to assess the transient security of the system with the combination of assessment result of certain kind of contingency set. Results of some test systems prove the effectiveness of the proposed method.

关 键 词：电力系统 暂态稳定 临界清除时间 时间裕度 风险评估 

分 类 号：TM76[电气工程—电力系统及自动化]