Research On Transformer Substation Failure Diagnosis Method Based On Petri Net

Transformer substation failure diagnosis system based on the Petri net was a failure diagnosis system's branch in recent years. Only then based on the Petri net method's failure diagnosis technology's research just started, its system do not yet obtains systematic and the complete establishment, the application achievement are also very few, therefore, this article will launch the research in this aspect.This article unifies the Petri net theory and the intelligent diagnosis technology and the modulation design concept to diagnoses system's architecture to conduct the research from the system and integrated angle, in the foundation with summarizing related research results in the present domestic and foreign, thus provides the instruction theoretically for the complex equipment's failure diagnosis, develops one intelligence diagnostic tool which takes the net as the main modeling.This article according to the data message which provides by the SCADA system, by the Petri network model's in storehouse expressed that power equipment for example, transformer, switch, relay and so on, by the Petri network model's in vicissitude expression movement situation for example switch, the relay protection and so on, in the corresponding actual production's concrete equipment, according to the transformer substation actual network architecture forming the Petri net model. It has established transformer substation failure diagnosis model based on the Petri net and the inference rule, carries on the matrix analysis computation according to the Petri net vicissitude node's triggering condition to draw the corresponding conclusion finally again, plans failure diagnosis flow chart, carries on the breakdown simulation, confirms based on the Petri net model transformer substation failure diagnosis system's diagnosis effect.It utilizes the multi-Agent technology, establishes many Agent, each Agent model uses the Petri net diagnostic model which corresponds each other, enhances diagnosis speed to the complex breakdown.Transformer substation failure diagnosis system based on the Petri net model, compares with other diagnosis way, this system's diagnosis result is more target-oriented, the actual operating speed is quicker, improving the diagnosis accuracy, thus it has the stronger capability to recognize the breakdown situation. Meanwhile it provides the reference for deep research this kind of question.