Risk Assessment Model of Cascading Failures in Power System Based on Danger Lines

被引：0
|
作者：
Zhang, Fuchun [1 ]
Huang, Jiadong [1 ]
机构：
[1] North China Elect Power Univ, Sch Elect & Elect Engn, Baoding 071003, Peoples R China
来源：
MECHATRONICS, ROBOTICS AND AUTOMATION, PTS 1-3 | 2013年 / 373-375卷
关键词：
Cascading failure; Risk assessment mode; Danger lines; Power system; Simulation;
D O I：
10.4028/www.scientific.net/AMM.373-375.1349
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Based on the theory of risk, a new model is proposed for cascading failure in power system. According to fault factor of power line itself and the impact of real-time power flow, the branch outage probability model is established, and then the probability of cascading failure can be calculated. The severity function of cascading failure is defined by the analysis of fault consequences including the decrease of load margin, bus voltage offset and power line overload. The use of the set of danger lines which is judged by the amount of active power increase and load margin of power line can speed the search of fault mode. The simulation and analysis of IEEE 39-node proves the effectiveness of the method.
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页码：1349 / 1352
页数：4
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