High Voltage Gain Interleaved DC-DC Converter with Voltage-Lift and Three-Winding Coupled-Inductor Techniques

2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia) Pub Date : 2023-05-22 DOI:10.23919/ICPE2023-ECCEAsia54778.2023.10213491

Shin-Ju Chen, Sung-Pei Yang, Chao-Ming Huang, P. Huang, Cheng-Hsuan Chiu

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Abstract

A new high voltage gain interleaved DC-DC converter is proposed for the renewable energy systems. The configuration is composed of two-phase boost converter integrating a voltage-lift capacitor and three-winding coupled-inductor-based voltage multiplier modules to achieve high voltage gain without operating at extreme duty ratio. The switch voltage stress is greatly lower than the output voltage such that MOSFETs with low on-resistance are available to reduce the conduction losses. Due to the leakage inductances of the coupled inductors, the switches can turn on with zero-current switching (ZCS), and the diode reverse-recovery problem is alleviated. The input current ripple is decreased due to the interleaved operation. The operational principle, steady-state analysis and design considerations of the proposed converter is presented. In addition, a closed-loop controller is designed to. Finally, experimental a 1000 W prototype with 24-400 V conversion is built and tested to validate the performance of the proposed converter.

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具有电压提升和三绕组耦合电感技术的高电压增益交错DC-DC变换器

提出了一种用于可再生能源系统的新型高压增益交错DC-DC变换器。该配置由集成电压提升电容器和基于三绕组耦合电感的电压倍增器模块的两相升压转换器组成，以实现高电压增益，而无需在极端占空比下工作。开关电压应力大大低于输出电压，因此具有低导通电阻的mosfet可用于降低传导损失。由于耦合电感的漏电感，开关可以实现零电流开关(ZCS)导通，减轻了二极管的反向恢复问题。由于交错操作，输入电流纹波减小。介绍了该变换器的工作原理、稳态分析和设计注意事项。此外，还设计了一个闭环控制器。最后，建立了一个1000 W的24-400 V转换的实验样机，并对其进行了测试，以验证所提出的变换器的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)

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