Agent-oriented Petri Net based Modeling of Dynamic Behavior for Wide-area Backup Protection

The study of agent-based wide-area backup protection (WABP) in power system has become a hot. An improved agent-oriented Petri net (AOPN) is proposed to simulate dynamic behaviors of multi-agent system. The general architecture of improved AOPN is set up, as well as formalized definitions, structural properties and theorems to describe Petri net. Agent-oriented Petri net for WABP is constructed; autonomy, corporation, concurrency and robustness characters of WABP agent are designed. The analysis of L3-liveness and consistency of Petri net are given. The reasoning results of three samples illustrate the accurateness of Petri net for WABP and effectiveness of capturing dynamic behaviors. Design errors can be found to make the system being robust and reliable.