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四象限隔离型变换器在新能源发电系统、储能系统等应用场景中提供了一种成本更低的解决方案。本文使用两组反串联MOSFET构建了一种新型四象限隔离型直流变换器，相比现有方案使用的开关管数量更少。并在该变换器基础上提出一种适用于该拓扑的双移相调制方法，解决了传统单移相调制方法反向电流上限低的问题，大幅提升了反向电流增益，实现了完全的四象限工作。分析了该变换器的拓扑以及新调制方法的工作原理和软开关性能，并在仿真和实物实验中验证了变换器拓扑和双移相调制方法的有效性。
Abstract：The four-quadrant isolated converter provides a lower cost solution in renewable energy generation systems and energy storage systems. A novel four-quadrant isolated DC converter is constructed using two sets of anti-series MOSFET,which requires fewer switching transistors compared to existing solutions.And a new modulation method is proposed based on the converter,solving the problem of low upper limit of reverse current in traditional modulation methods by adding a new circuit mode,which greatly improves the reverse current gain and achieves complete four-quadrant operation.The working principle and soft switching performance of the new modulation method are analyzed.The effectiveness of the converter and modulation method is verified through simulation and experiments.
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基本信息:
DOI：10.20222/j.cnki.cn61-1124/tm.20250527.001
中图分类号:TM46
引用信息:
[1]唐文涛,杜贵平.新型四象限隔离型直流变换器及其调制方法[J].电力电子技术,2025,59(12):20-26.DOI:10.20222/j.cnki.cn61-1124/tm.20250527.001.
基金信息:
广东省自然科学基金（2022A1515240036）