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Enhanced soft-switching strategy for flyback-based microinverter in PV power systems

journal contribution
posted on 2023-05-21, 06:24 authored by Hasan, R, Waqas HassanWaqas Hassan, Farhangi, M, Mekhilef, S, Xiao, W
Flyback topology has been widely used to construct modular power conversion for solar photovoltaic (PV) grid-tied systems, which creates a parallel interconnection infrastructure and is considered as the most straightforward way to cope with the harmful mismatch effects among PV modules. The challenge becomes the conversion efficiency and system reliability to be competitive with traditional system configurations. This study proposes a comprehensive solution to overcome the present problem, which optimally integrates the technology of resonant circuit, adaptive modulation scheme, and active clamping to enhance soft-switching capability and system efficiency. The effectiveness of theoretical analysis, circuit design, and modulation scheme is analysed by simulation and verified by experimental evaluation. The California Energy Commission efficiency is tested and shown as 97.4%.

History

Publication title

IET Renewable Power Generation

Volume

13

Issue

15

Pagination

2830-2839

ISSN

1752-1416

Department/School

School of Engineering

Publisher

The Institution of Engineering and Technology

Place of publication

United Kingdom

Rights statement

© The Institution of Engineering and Technology 2019

Repository Status

  • Restricted

Socio-economic Objectives

Industrial energy efficiency; Solar-photovoltaic energy

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    University Of Tasmania

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