Abstract: When wind farm,photovoltaic power station and hybrid electric-hydrogen energy storage system belong to different investors,there is a contradiction between the optimal operation of the microgrid as a whole and the optimal operation of each investor.Meanwhile,the uncertainty of wind and photovoltaic output also affects the capacity configuration. To solve the above problems,a capacity configuration method of wind-photovoltaic-electric hydrogen microgrid based on cooperative game is proposed,considering the uncertainty of wind and photovoltaic. Firstly,the typical monthly scenes of wind-photovoltaic-load are extracted based on ordered clustering and K-means clustering algorithm. Secondly,the factors affecting the operation of the microgrid are comprehensively considered,and an economic model based on different investors is constructed. Under the scenario of a typical month,the revenue relationship between each investor and the alliance is analyzed under the mode of full cooperation game,partial cooperation game and non-cooperation game. Finally,the highest month income is used as the optimization objective,the improved grey wolf optimization algorithm is used to allocate the installed capacity of investors,and the investor income of the cooperative alliance is allocated based on shapley value. According to the results of the example and the sensitivity analysis of key parameters,it can be seen that in the full cooperative game mode,economy and low carbon are taken into account,and the interests of each investor are distributed reasonably.The fluctuations of electricity price and wind-photovoltaic subsidy price have different effects on each investor.