In　this　paper,　a　novel　power　smoothing　control　strategy　for　permanent　magnet　synchronous　generator　(PMSG)　wind　turbine　(WT)　based　on　the　secondary　exponential　moving　average　method　is　proposed　by　the　rotor　kinetic　energy　control　and　the　pitch　angle　control.　The　method　is　proposed　considering　its　advantage　of　reducing　the　hysteresis　between　the　calculated　value　and　the　actual　value,　which　can　consequently　reduce　the　power　loss　when　smoothing　the　power　fluctuation.　The　simulations　have　been　carried　out　in　Matlab/Simulink　environment　for　PMSG　WT　system　to　verify　the　effectiveness　of　the　proposed　method.　Compared　with　the　first　exponential　moving　average　method,　the　performance　of　the　proposed　method　exhibits　that　the　power　smoothing　control　can　be　achieved　and　the　wind　energy　harvesting　is　enhanced　as　well.　©　2019　IEEE.