Hydroelectric generating set speed regulation system fault diagnosis method and system based on code identification

The invention relates to a hydroelectric generating set speed regulation system fault diagnosis method and system based on code identification, and the method comprises the steps: obtaining the current feature information of a hydroelectric generating set, the current feature information comprises a plurality of parameters of different dimensions, determining the corresponding identification code information according to the attributes of the parameters in the current feature information, and carrying out the fault diagnosis of the hydroelectric generating set speed regulation system. And determining the current state code of the hydraulic turbine set based on the identification code information, and determining the fault type of the hydraulic turbine set according to the current state code and a pre-constructed mapping relationship between the fault type and the state code. The current state code of the hydraulic turbine set is determined through the identification code information, and then the fault type o