Classification and discussion on methods for cascading failure Analysis in Transmission System

Given the incidence of blackouts during recent years, there has been an increased interest in understanding them to increase system reliability in the future. Multiple research efforts have been devoted to cascading models, and there is a need for the comparison and discussion of the different modeling theories and focuses of these models. This paper reviews models proposed these years for the analysis of cascading blackouts, proposing a classification based on their assumptions, system representation and underlying modeling theories. A further discussion of the underlying reason of cascading blackouts and modeling focuses is made, concluding that modeling focusing on how the system is driven to present critical condition can give more practical advices on how to relieve the system stress and mitigate the risk of cascading failures.