电源学报2026，Vol.24Issue(2)：1-9,9.DOI:10.13234/j.issn.2095-2805.2026.2.1
一种应用于反激式光伏微逆的平面变压器设计
Design of Planar Transformer for Flyback Photovoltaic Micro Inverter
摘要
Abstract
A micro inverter can be directly connected to a photovoltaic board,and it has advantages such as a simple structure,a small size and input output isolation.To expand the power range of the photovoltaic micro inverter,two flyback converters can be interleaved and connected in parallel at the front stage DC-DC section,and an active clamping circuit can be used to improve the efficiency of the micro inverter.In response to the issues of temperature rise in a high-frequency power transformer and low power density in outdoor high-temperature environments,a planar transformer applied to micro inverters is designed.First,the working principle for flyback micro inverters is analyzed.Second,the electrical parameters and winding structure of the planar transformer are designed,and the magnetic density distribution and loss of the planar transformer core are simulated using Maxwell software.Finally,a 220 W interleaved parallel flyback micro inverter prototype was built for experimental testing.Experimental results proved the effectiveness of the design,and the prototype can perform stable work.关键词
反激微型逆变器/交错并联技术/有源钳位/平面变压器Key words
Flyback micro inverter/interleaved parallel technique/active clamping/planar transformer分类
信息技术与安全科学引用本文复制引用
朱一昕,侯大成,刘淳铭,许德智..一种应用于反激式光伏微逆的平面变压器设计[J].电源学报,2026,24(2):1-9,9.基金项目
国家自然科学基金优秀青年科学基金项目(62222307)This work is supported by National Natural Science Foundation of China Youth Fund under the grant 62222307 （62222307）
