Low-frequency　pulsating　ripples　exist　on　the　input　side　of　a　single-phase　inverter,　which　bring　some　adverse　effects　and　harm　to　the　inverter　and　photovoltaic　power　generation　system.　In　order　to　suppress　the　low-frequency　pulsating　ripple　and　reduce　the　filter　circuit　parameters,　a　novel　single-stage　boost　single-phase　inverter　is　proposed,　which　can　suppress　low-frequency　ripple.　And　a　three-closed-loop　compound　control　strategy　that　can　suppress　input　low-frequency　ripples　under　the　limitation　of　an　energy　storage　inductor　current　and　buffer　capacitor　voltage　is　proposed.　The　circuit　topology,　control　strategy,　key　circuit　parameters　design,　system　modeling,　and　simulation　of　the　inverters　are　deeply　analyzed　and　studied.　Simulation　and　experimental　results　show　that　the　inverter　has　a　good　ability　to　suppress　input　low-frequency　ripples.