A　novel　small-　capacity　photovoltaic/fuel　cell　power　supply　inverter　is　proposed　for　multiple　new　energy　power　supply　occasions.　Key　technologies　such　as　its　topologyenergy　management　control　strategyhigh-frequency　switching　processdual　input　source　duty　cycleoutput　voltage　compound　controller　design　and　dual-　input　common-　mode　suppression　have　been　studied.　The　topology　is　composed　of　two　input　source　selector　switchestwo　bidirectional　Flyback　DC　choppers　working　for　half　an　output　cycleand　an　AC　filter　capacitor.　The　proposed　master-slave　power　distribution　energy　management　SPWM　composite　control　strategy　is　to　realize　the　energy　management　of　the　input　sources　and　the　seamless　switching　of　the　two　working　modes　by　controlling　the　instantaneous　value　of　the　output　voltage　and　the　output　power　ratio　of　the　input　sources.　A　1　kVA　photovoltaic/fuel　cell　dual-input　inverter　prototype　is　designed　and　developed.　The　experimental　results　show　that　the　inverter　has　the　advantages　of　single-stage　power　conversionhigh　conversion　efficiencywide　duty　cycle　adjustment　rangehigh　output　waveform　quality　and　seamless　switching　between　different　power　supply　modes.　©　2023　Science　Press.　All　rights　reserved.