Basin cascade hydropower station group compensation benefit solving and benefit distribution method

The invention discloses a compensation benefit solving and benefit distribution method suitable for a cascade hydropower station group of a drainage basin. The method comprises: proposing a solution thought for obtaining the compensation benefit of any benefit application power station of the basin cascade for each downstream power station; determining an objective function based on a solving idea, determining constraint conditions in combination with actual scheduling conditions of the basin, determining a solving algorithm, and establishing a basin cascade compensation benefit model; and calculating to obtain the pairwise relationship between the benefit application power station and each downstream power station through the model. Based on the TOPSIS theory, a compensation benefit distribution method for the cascade existence of a plurality of benefit application power stations is established. According to the method, a solving thought for obtaining the compensation benefit of any benefit application power