China's Research Status Quo and Development Trend of Power Grid Fault Diagnosis

Fault diagnosis is the basic condition for smart grid to achieve the self-healing function, and it is also one of the important research topics of the intelligent dispatching decision support system. On the basis of analyzing its concept and aiming at the current status of China's studies, this paper reviewed and summarized several intelligent fault diagnosis methods, including expert system, artificial neural networks, rough set theory, data mining techniques, multi-agent technology and the entropy theory, then pointed out their application characteristics and existing problems, and finally the prospects of further development in this field were presented.