Zero-voltage soft-switching single-phase boost inverter and control method

The invention belongs to the technical field of inverters, and discloses a zero-voltage soft-switching single-phase boost inverter and a control method. The inverter comprises two auxiliary switch tubes, a first inductor L1, a first bridge arm, a second bridge arm and an auxiliary branch, wherein the two auxiliary switch tubes are conducted in a complementary mode, and the auxiliary branch is composed of a first direct-current bus capacitor Cdc1, a second direct-current bus capacitor Cdc2 and a second inductor L2. In a positive half power frequency period, the first bridge arm works in an SPWMmode, and the second bridge arm works in a PWM mode; and in a negative half power frequency period, the working states of the first bridge arm and the second bridge arm are exchanged. According to the inverter, zero-voltage soft switching of two bridge arm lower tubes and one bridge arm upper tube is realized, the problem of serious reverse recovery loss of an anti-reverse diode in a traditionalintegrated inverter is eff