Method and device for monitoring running state of winding of wind generating set

The invention provides a winding operation state monitoring method and device of a wind generating set. The method comprises the steps: acquiring the SCADA data, collected by an SCADA system, of the wind generating set; according to the plurality of unit variables and the plurality of winding variables of the plurality of data groups, respectively determining unit entropies and winding entropies at the sampling moments; determining the entropy ratio of the winding to the wind generating set at each sampling moment according to the winding entropy and the set entropy at each sampling moment; determining an entropy ratio accumulated deviation value of each sampling moment according to the entropy ratio of each sampling moment and an entropy ratio threshold value of the wind generating set in the healthy operation state; according to the entropy ratio accumulated deviation values at all the sampling moments and a preset decision tree model, determining the running state of the winding, wherein the input of the d