Modeling of Hybrid Systems with Petri Nets

In this paper we deal with the problem of modeling and simulation a DC electric drive using a Hybrid Petri Net formalism, considering that the electric drive is a hybrid system which switches between its states under the occurrence of generic and non-generic external events. The synthesized topology is called a Modified Hybrid Petri Net and is a hybrid model that combines both differentials and discrete Petri Nets dynamic and enables us to simulate and to analyzing the behavior of DC electrical drives in different operating regimes due to the particularities imposed by the load of electrical motor. A real application case was finally considered; simulation is carried out with an available software Visual Object Net ++.