A Single-Stage Quadratic-Boost Integrated Full-Bridge Micro-Inverter Featuring High Voltage Gain and Low Input Current Ripple for Single Phase Renewable System
Year: 2026
Type: conference-paper
Abstract: A Non-isolated Quadratic boost converter integrated full bridge inverter is proposed for low voltage renewable power source. Instead of cascading an independent dc-dc boost converter with a conventional full bridge inverter, the energy-transfer network of a quadratic boost converter(QBC) is structurally integrated into the full-bridge into the full bridge power stage, which enable direct single dc-ac power conversion. The integrated quadratic boosting action provides a high voltage gain at a reasonable modulation index(M). Owing to the time-varying energy transfer throughout the switching and fundamental-frequency cycles, the proposed inverter operates in a hybrid discontinuous conduction mode(DCM) and continuous conduction mode(CCM). Simulation run at Matlab Simulink verify the operating modes, steady-state voltage gain and input current characteristics.
Authors: Yakun Yang, Haoran Peng, Dylan Dah-Chuan Lu
Institution: University of Technology Sydney
Language: English
Topic: Advanced DC-DC Converters
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W7225149100