基于高级Petri网的继电器控制电路建模方法研究

Research on Modeling of Relay Control Circuit Based on High-Level Petri Net

摘要: 根据继电器控制电路的特点，给出了利用带抑制弧的着色Petri网对继电器控制电路进行建模和分析的方法，并将其应用于某型船用柴油机控制系统的一典型继电器控制电路。建模及仿真分析结果表明，给出的带抑制弧的着色Petri网模型能对继电器控制电路进行准确的数学描述，利用建立的Petri网模型，借助Matlab平台，可以对被测电路的工作过程、输入输出特性等进行分析，为继电器控制电路的建模和特性分析提供了一种新的有效方法。

Abstract: A method of modeling and analyzing a relay control circuit is proposed by using colored Petri net with inhibitor arcs, based on the peculiarity of the relay control circuit. The proposed method is applied to modeling and simulating a certain marine diesel engine control system, which is a typical relay control circuit. Simulation results indicate that this circuit can be modeled and described by using the given colored Petri net with inhibitor arcs exactly. And the work procedures, input and output characteristics can be analyzed by simulating the corresponding Petri net model on Matlab platform. It is concluded that the research work presents an effective method in modeling and analyzing a relay control circuit, and the new method is highly practical.