The　energy　router　(ER)　is　a　current　power　electronic　device　which　can　integrate　distributed　energy,　provide　power　for　different　types　of　loads,　and　simultaneously　realize　the　free　flow　of　energy.　In　traditional　active　distribution　networks,　power　quality　is　affected　due　to　the　access　of　photovoltaics　(PV)　and　various　loads.　Hence,　this　problem　can　be　improved　by　accessing　the　ER.　This　paper　shows　the　power　quality　improvement　of　the　grid　when　the　ER　is　used　to　integrate　PV,　energy　storage,　and　AC/DC　loads.　At　the　same　time,　an　energy　coordination　strategy　for　ER　is　proposed.　The　IEEE　13　node　model　is　developed　to　analyze　power　quality　fluctuations　when　distributed　energy　and　AC/DC　loads　are　directly　connected　to　the　grid.　For　the　power　quality　analysis,　five　indicators　were　selected　and　the　hierarchical　analysis　method　was　used　to　obtain　the　indicators　of　power　quality.　After　the　use　of　ER　under　the　coordinated　control　of　ER,　the　energy　is　distributed　twice　and　the　power　quality　of　the　grid　improves.　The　feasibility　of　ER　topology　and　the　control　strategy　have　been　verified　through　an　established　active　distribution　networks　model　with　ER.　It　is　verified　that　when　the　ER　is　connected　to　active　distribution　networks,　the　power　quality　improves　accordingly,　and　it　can　effectively　deal　with　the　characteristics　of　distributed　energy　fluctuations　and　improve　the　flexibility　of　the　power　grid.　©　2023　by　the　authors.