Under　the　goal　of　＇double　carbon＇,　hydrogen　energy　provides　new　opportunities　for　low-carbon　energy　transformation.　However,　the　construction　of　green　parks　containing　hydrogen　energy　has　problems　with　wind　and　solar　energy　consumption　and　low　hydrogen　energy　conversion　efficiency.　It　is　urgent　to　construct　an　efficient　and　comprehensive　utilization　scheme　for　wind-solar-hydrogen　energy.　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　and　photovoltaic　power　in　the　power　system,　demonstrating　promising　application　potential.　©　2025　Power　System　Technology　Press.　All　rights　reserved.