Abnormal early warning method, device and equipment for stability state of all working conditions of hydroelectric generating set

The invention provides an abnormal early warning method for the stability state of all working conditions of a hydroelectric generating set. Comprising the steps of obtaining historical operation data of a hydroelectric generating set in a stable state, determining corresponding target water heads, target active power and set rated power when the hydroelectric generating set operates according to different historical operation data, and calculating the target water heads, the target active power and the set rated power according to the target water heads, the target active power and the set rated power corresponding to the historical operation data; the method comprises the following steps: dividing a plurality of historical operation data into a plurality of data sets, each data set having a corresponding target water head and target active power, determining a data health value of a hydroelectric generating set when the hydroelectric generating set operates at the target water head and the target active pow