A Method for Cascading Failure Simulation based on Static Security Analysis

Abstract

single device contingency analysis. Against such backgrounds, Cascading failure is a chain reaction of a series of other this paper proposes a method for cascading failure simulation components outage caused by the failure of a certain with static security analysis method, which considers the load component in the system, which is an accident with a low variation during the fault. The method is divided into two steps: probability but serious consequences. Bus failure, line failure, firstly, a self-adapting step is figured out with the climbing rate of breaker failure, misoperation and rejection of the relay the daily load curve, and secondly, the power flow at the self- protection and sudden transfer of large power flows are the adapting step, which is used to judge if another fault or even the main reasons of power system's cascading failures. It can be cascading event has happened is calculated. In this way, the seen from the analysis reports of 8•14 blackout in USA & process of cascading failure can be simulated and monitored, Canada and other blackouts that cascading failures are not which is beneficial for the operators to obtain the operating state formed in a moment. Generally at the early stage of the of the power system in time and adopt appropriate measures to blackout the system is unlikely to show the characteristics of prevent the system from deteriorating into a large-scale blackout transient instability, instead it shows the redistribution of power accidents. Finally, the standard IEEE 30-bus testing system is flow formed by a series of line outage [11]. adopted to verify the correctness of the method. And the study of cascading failure mainly centralized on