Fault diagnosis based on deep knowledge model of signed directed graph in power plant thermal system
Liangyu Ma · Journal of North China Electric Power University · 2005
A qualitative method based on the Signed Directed Graph(SDG) is applied to fault diagnosis in power plant thermal system.The SDG model of deaerator system is built.The sub-SDGs according to the fault origins are derived from the SDG s.The quantitative values of the system are transformed into qualitative values.The case study shows this method is effective.