Wide-input multi-level inverter with boost self-decoupling function

The invention discloses a wide-input multi-level inverter with a boost self-decoupling function, and belongs to the technical field of power electronic converters. The inverter comprises an input power supply Udc, power switch tubes S1 to S8, an inductor Lin and capacitors C1 and C2; the positive electrode of the capacitor C1 is connected with the drain electrode of the S1 and the drain electrode of the S3, the negative electrode of the capacitor C1 is connected with the drain electrode of the S6 and the positive electrode of the capacitor C2, and the negative electrode of the capacitor C2 is connected with the source electrode of the S4 and the source electrode of the S5; one end of the inductor Lin is connected with the source electrode of the S1 and the drain electrode of the S2, and the other end is connected with the positive electrode of the input power supply Udc; the source electrode of the S8 is connected with the source electrode of the S2, the drain electrode of the S5 and the negative electrode of