Construction Of The Fault Information And Research Of Expert Systems For Relay Protection

For the construction of the Jilin Province 220kV power network's relay protection fault information system, this paper presents the fault information integrated application research and the development work that bases on the above system basic function. Include:Construct the laminative and distributional fault diagnosis system on the existing fault information system basic function.Construct a universal relay model that the action boundary can be self-defined. Through connecting with the relay fixed-value the model might simulate the specific device corresponding relay. After designating record wave channel of the simulation value and the switch value in the wave document. With the graphical representation, the relay action value's path of the fault happen and continue in the process can be find, compare with the actual output information, evaluate the relay performance in the fault, carry on the protection action process analysis and the fault simulation.As one function of the protective relaying expert system's, we designed a relay setting check model, which can discuss and carry out the structure pattern , start-up manner, flow realized of the system online.