Application of object-oriented Petri net (OOPN) model in fault rehearsal of aircraft independent electrical power system

Under the background of more attention on the power supply reliability and maintenance, Object-oriented Petri Net (OOPN) model using message-driven mechanism is proposed by combining object-oriented concept with Petri net theory. The model makes full use of the encapsulation, reusability and maintainability of object-oriented concept and the macroscopic visualization of Petri net. This paper takes power generation subsystem as an example to make use of the proposed OOPN model in fault rehearsal of aircraft independent electrical power system. On the basis of analysis of typical faults in the system, the OOPN model for fault rehearsal is established in detail, in which faults are put into objects. The model can provide foundation for fault diagnosis system.