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Complex power system cascading failure risk assessment study

Author: LiRongRong
Tutor: CaoYiJia
School: Zhejiang University
Course: Proceedings of the
Keywords: Power system Cascading Failures Risk indicators Risk assessment
CLC: TM711
Type: Master's thesis
Year: 2006
Downloads: 611
Quote: 8
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Abstract


Cascading failure in the power system is a low probability , but the consequences of serious accidents occurred , a serious cascading failures may lead to large-scale blackouts and even the collapse of the entire system . With the continuous development of the power system and the gradual formation of the electricity market , the operation of the grid , getting closer and closer to the ultimate level , become necessary for the reliability assessment of cascading failure . This paper first analyzes several major power outage in the world in recent years , described the mechanism and behavioral characteristics of the power system cascading failure , review the existing power grid cascading failure model . Followed by a discussion of the basic theoretical and computational methods for reliability assessment , at the same time introduced the principle of risk theory and compared with the traditional method . Finally, a complex power system cascading failure risk assessment method to simulate the general development of the process of cascading failures , accident probability and consequences linked quantitative risk indicators , can be found in the deeper problem in the operation of the system , exposed to security risks . As a basis for development of the power system cascading failure risk assessment software based on risk theory and NPCC 48 - machine test system in the northeastern United States , for example the progressiveness and validity of this method is verified .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Theory and Analysis > Network analysis,power system analysis
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