Hybrid modeling of power system using hybrid Petri nets

Current techniques of power system modeling provide individual modeling methodologies for continuous and discrete-event dynamics, but do not allow scripting of complex behavioral sequence as is required. This paper describes a new methodology for modeling of power system using hybrid Petri nets (HPNs). The HPNs describe hybrid systems, which allow the modeling of coupled discrete-event and continuous dynamics within one integrated description language. The HPN power system model includes protective relaying model and on load tap changer transformer model. This approach has been used to model and analyze the complex interactions occurring in power system.