To　solve　the　unintentional　emission　supraharmonic　problem　at　the　grid-connected　point　of　wind　farm　group,　this　paper　introduces　a　supraharmonic　suppression　mechanism　and　a　carrier　phase　optimization　control　strategy　based　on　edge　computing.　Firstly,　a　supraharmonic　emission　model　is　established　for　the　grid-side　converter　of　wind　generators　and　the　propagation　characteristics　of　supraharmonic　is　analyzed　with　consideration　of　the　Bergeron　distribution　parameter　model.　And　then,　considering　the　influence　of　active　power,　carrier　phase,　and　other　parameters　of　wind　generators,　the　quantitative　relationship　between　the　carrier　phase　and　the　supraharmonic　phase　is　studied.　A　phase　adjustment　model　of　unintentional　emission　supraharmonic　is　constructed　for　grid-connected　wind　power　systems,　and　a　supraharmonic　suppression　method　is　proposed　through　controlling　supraharmonic　phase.　Finally,　taking　advantage　of　the　low-latency　advantage　of　the　edge　computing　in　data　calculation,　the　optimal　control　algorithm　for　the　carrier　phase　of　the　wind　farm　group　is　deployed　on　the　wind　generator　side,　and　the　unintentional　emission　supraharmonic　suppression　strategy　is　proposed　for　wind　farm　group　based　on　edge　computing.　The　simulation　results　show　that　the　supraharmonic　suppression　mechanism　and　control　strategy　can　significantly　eliminate　supraharmonic　at　the　grid-connected　point　of　wind　farm　group.　©　2023　Automation　of　Electric　Power　Systems　Press.　All　rights　reserved.