Abstract:  Modeling and behavior analysis for a large hybrid system is challenging because of complexity of the system. A modeling method based on timed hierarchical colored Petri net (THCPN) is proposed in this paper. Using the idea of a discrete event driven system, the continuous part is embedded into the model by extension transition. Thus, both discrete and continuous parts of the hybrid system can be modeled using professional tools in the respective fields. Hybrid interactive simulation can be implemented with communication interface. This way, data consistency and time synchronization are ensured. In analyzing the hybrid model, a structure analysis method of Petri net is performed to get different behavior patterns of the hybrid system. Thus, a multi-attribute simulation analysis of different behavior patterns can be conducted. Feasibility of the method is shown by a missile defense system.

Key words: hybrid system, timed hierarchical colored Petri net (THCPN), structure analysis, behavior simulation