The　problem　of　absorption　of　new　energy,　such　as　wind　and　solar　power,　into　the　power　system　is　becoming　increasingly　serious.　How　to　improve　the　economic　benefits　of　hydrogen　energy　system　while　using　it　to　help　the　absorption　of　new　energy　is　a　practical　problem　that　needs　to　be　addressed　in　the　development　of　hydrogen-　electric　coupling.　The　paper　proposes　a　method　for　optimizing　the　capacity　of　a　hydrogen　energy　system　through　the　cooperative　operation　of　alkaline　electrolyzers　and　proton　exchange　membrane　electrolyzers.　First,　a　wind-solar-hydrogen　energy　system　is　constructed,　and　the　mechanisms　of　each　component　are　analyzed.　Second,　considering　the　operational　characteristics　of　the　electrolyzer,　a　power　distribution　strategy　for　the　hybrid　electrolyzers　is　proposed.　Subsequently,　the　optimal　configuration　model　of　wind-solar-hydrogen　energy　system　is　established　with　the　maximum　profit　of　the　system　as　the　optimization　objective.　Finally,　an　industrial　park　system　in　northwest　China　is　taken　as　an　example　to　verify　the　feasibility　of　the　optimal　configuration　method.　The　results　indicate　that　the　coordinated　operation　of　alkaline　electrolyzers　and　proton　exchange　membrane　electrolyzers　significantly　enhances　the　absorption　of　wind-solar　power　in　the　power　system,　demonstrating　promising　application　potential.