Loading…
Forward-flyback resonant converter for high-efficient medium-power photovoltaic applications
In this paper, a quasi-resonant forward-flyback converter is proposed for photovoltaic power system. Since the output of forward-flyback converter is connected in series, the proposed circuit offers high-step up conversion. The quasi-resonant forward circuit that consists of a transformer leakage in...
Saved in:
Main Authors: | , , , , , |
---|---|
Format: | Conference Proceeding |
Language: | English |
Subjects: | |
Online Access: | Request full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | In this paper, a quasi-resonant forward-flyback converter is proposed for photovoltaic power system. Since the output of forward-flyback converter is connected in series, the proposed circuit offers high-step up conversion. The quasi-resonant forward circuit that consists of a transformer leakage inductance and a resonant capacitor generates almost sinusoidal currents during the switch on-time so the primary switching stress has been significantly reduced. The flyback circuit transfers the energy stored in the magnetizing inductance to the load during the switch off-time. Design guidelines of the circuit parameters are presented. To verify the proposed circuit design, a 400-W experimental prototype has been designed, fabricated, and tested. Simulation and experimental results verify the effectiveness of the proposed circuit design. |
---|---|
ISSN: | 2470-6647 |
DOI: | 10.1109/APEC.2017.7930851 |