Aiming　at　the　optimal　scheduling　of　cogeneration　microgrid,　a　microgrid　structure　including　wind　energy,　energy　storage　device,　solar　thermal　power　station,　gas　turbine　and　waste　heat　boiler　is　proposed.　Based　on　the　uncertainty　of　wind　power　output　and　load　forecasting,　according　to　beta　distribution　wind　power　output　and　normal　distribution　load　forecasting,　the　CHP　microgrid　optimal　scheduling　model　of　photothermal　power　station　is　established　and　solved　by　genetic　algorithm.　Finally,　the　minimum　operation　cost　of　the　system　under　different　confidence　levels　is　discussed.　The　results　show　that　the　minimum　operating　cost　of　the　system　can　be　significantly　reduced　by　adding　wind　power　generation　into　the　microgrid　structure,　and　the　relationship　between　the　confidence　level　of　load　forecasting　and　the　minimum　operating　cost　of　the　system　is　studied.　©　Published　under　licence　by　IOP　Publishing　Ltd.