The　wind-storage　combined　system　(WCS)　can　suppress　wind　power　fluctuations　and　improve　the　economic　viability　of　wind　power　grid　connection.　However,　the　output　of　energy　storage　is　influenced　by　multiple　factors.　This　article　introduces　the　suppression　capability　index　of　energy　storage　batteries,　designs　a　multi-objective　optimization　model　for　protecting　energy　storage　batteries　and　ensuring　grid-connected　power　suppression　capability,　proposes　a　model　predictive　control　strategy　(MPC)　based　on　adaptive　adjustment　of　energy　storage　charge　state,　and　compares　the　proposed　method　with　traditional　model　predictive　control　methods　through　simulation.　The　results　show　that　under　the　same　energy　storage　configuration　ratio,　the　method　proposed　in　this　paper　can　effectively　suppress　wind　power　fluctuations,　with　better　overall　performance　indicators　compared　to　traditional　model　prediction　methods.　While　optimizing　wind　power　fluctuations,　it　also　enhances　the　power　support　capacity　of　the　energy　storage　system,　balancing　the　trade-off　between　energy　storage　output　and　stability.　©　2024　IEEE.