Single-phase Integrated Power Decoupling Inverter Based on Boost Converter

In the single-phase inverter, large electrolytic capacitors are usually used to restrict the low-frequency ripple, which injures power density and reliability of the system. This paper proposes a single-phase integrated power decoupling inverter to realize ripple power decoupling without using large electrolytic capacitors. The proposed converter is derived from a boost DC/DC circuit based active decoupling circuit inverter, which reduces the usage of switches. This paper firstly introduces the derivation process of the proposed inverter and then its operation principle is analyzed. Besides, the automatic power decoupling control method is adopted to simply the controller design. Finally, the feasibility and effectiveness of the proposed topology are verified by simulation and experiment results.