Pumped storage power station transition process performance evaluation method and device

The invention provides a pumped storage power station transition process performance evaluation method, and the method comprises the steps: firstly determining a plurality of evaluation indexes, and obtaining the monitoring values of the plurality of evaluation indexes in any one of a plurality of guide vane closing modes; obtaining a weight vector, calculating degradation degrees corresponding tothe evaluation indexes based on the monitoring values and the reference values of the evaluation indexes, determining a comment set, obtaining a membership degree matrix based on a predetermined membership degree function, and determining a fuzzy evaluation vector according to the weight vector and the membership degree matrix; and calculating the total performance score of the transition processcorresponding to a current guide vane closing mode according to the fuzzy evaluation vector and the evaluation score corresponding to each performance level. According to the method, the large fluctuation transition process b