CPC H02M 1/14 (2013.01) [H02M 7/537 (2013.01); H02M 7/53 (2013.01); H02M 7/5387 (2013.01)] | 6 Claims |
1. An alternating current (AC)-side symmetrically-split single-phase inverter for decoupling, comprising an H-bridge inverter and a resistor, wherein the H-bridge inverter comprises an upper half-bridge structure and a lower half-bridge structure that are symmetrical to each other and serially connected, the upper half-bridge structure comprises an upper half-bridge first unit and an upper half-bridge second unit coupled in parallel, the upper half-bridge first unit comprises an insulated-gate bipolar transistor G1, a diode D1, and a capacitor C3 coupled in parallel, and the upper half-bridge second unit comprises an insulated-gate bipolar transistor G3, a diode D3, and a capacitor C4 coupled in parallel; and the lower half-bridge structure comprises a lower half-bridge first unit and a lower half-bridge second unit coupled in parallel, the lower half-bridge first unit comprises an insulated-gate bipolar transistor G2, a diode D2, and a capacitor C1 coupled in parallel, the lower half-bridge second unit comprises an insulated-gate bipolar transistor G4, a diode D4, and a capacitor C2 in parallel, an inductor L1 is shared by the upper half-bridge first unit and the lower half-bridge first unit, and an inductor L2 is shared by the upper half-bridge second unit and the lower half-bridge second unit; and wherein the resistor is connected between the upper half-bridge first unit and the upper half-bridge second unit, and the resistor is also connected between the lower half-bridge first unit and the lower half-bridge second unit.
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