Modeling and analysis of power system events

The events in power systems are an important dynamic behavior, and there is no good approach of modeling and analysis at all times due to the complexity of its behaviors. In this paper, a mathematic definition of the event is given after analyzing various power system events, and also gives a model framework of power system events, which is based on formal language theory. The hybrid dynamic behavior between power system discrete control actions and physical system is analyzed by using this framework, and a cascading event sequence occurred in the 8.14 blackout is used as an example to discuss the controllable of events. Then, the synthesis of supervisor of power system discrete events is also discussed.