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Hybrid Modeling of Control System Based on Hybrid Petri Nets

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4 Author(s)
Dong Ling-xun ; Beijing Inst. of Technol., Beijing ; Dou Li-hua ; Yang Hong-ju ; Liu Hang

Tank fire control system (TFCS) is a real-time and complex control system which involves multiple operation conditions and tasks. Modeling of the complete operation procedure of this complex system is usually a difficult task and rarely done well up to date. This paper describes the hybrid characteristic of TFCS, which consists of continuous dynamic behaviors and discrete event behaviors. Hybrid Petri net (HPn) is introduced to model TFCS. The proposed model consists of discrete logic layer and continuous variable layer. The continuous variable system is described by differential algebraic equations, and discrete event system is modeled via common Petri nets. The state changes of discrete logic layer drive the operation of continuous variable systems. Hybrid Petri nets represent the interactions between continuous system and discrete system and the system evolution and running process. Simulation results show that the proposed hybrid model responds well to the normal running states of TFCS operation and decision-making.

Published in:

Control and Automation, 2007. ICCA 2007. IEEE International Conference on

Date of Conference:

May 30 2007-June 1 2007