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

Fu Chun Zhang; Jia Dong Huang

doi:10.4028/www.scientific.net/AMM.373-375.1349

Paper Titles

Simulations Research on Smith Predictive Adaptive Fuzzy-PID Compound Controller in the Temperature Control System of Microchip Level PCR Instrument
p.1324

Robust Fault-Tolerant Control for Singular Bilinear Systems with Markovian Jump Related to Output Feedback
p.1332

Hydraulic System Research of the Pumping Unit Based on Electro-Hydraulic Proportional Control Technology
p.1340

Risk Assessment of Relay Protection Setting Value in Power Plant
p.1345

Risk Assessment Model of Cascading Failures in Power System Based on Danger Lines
p.1349

Analysis and Control of the Closed-Loop Current Based on Power Flow Calculation in Distribution Network
p.1353

Improvement of the Fast Out-of-Step Separation Criterion in Electric Power System
p.1357

Study on Four-Quadrant Operation of Brushless DC Motor Control Method
p.1363

Multiple Models Based Detection of Transient Faults for Networked Control System
p.1369

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 373-375Risk Assessment Model of Cascading Failures in...

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

Abstract:

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.