Analysis of cascading outages in power systems is important for understanding why large blackouts emerge and how to prevent them. Cascading outages are complex dynamics of power systems, and one cause of them is the interaction between swing dynamics of synchronous machines and protection operation of relays and circuit breakers. This paper uses hybrid dynamical systems as a mathematical model for cascading outages caused by the interaction. Hybrid dynamical systems can combine families of flows describing swing dynamics with switching rules that are based on protection operation. This paper refers to data on a cascading outage in the September 2003 blackout in Italy and shows a hybrid dynamical system by which propagation of outages reproduced is consistent with the data. This result suggests that hybrid dynamical systems can provide an effective model for the analysis of cascading outages in power systems. key words: power system, cascading outage, modeling, hybrid dynamical system
In REF , Susuki et al. use a hybrid dynamical system for modeling and analysis of the cascading failure leading to the 2003 blackout in Italy.
Hybrid Model for Cascading Outage in a Power System: A Numerical Study
IEICE Transactions
IEICE Transactions
Mathematics Computer Science