A Novel Nonisolated Dual-Input High Step-Up DC-DC Converter With Three-Winding Coupled Inductor for Electric Vehicle Charging Station

IF 8.3 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Transportation Electrification Pub Date : 2025-01-10 DOI:10.1109/TTE.2025.3528401

Hongzhu Li;Chao Li;Xuanjin Sun;Wenjing Li;Zhen Yang

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Abstract

Dual-input dc-dc converters are increasingly recognized as integrated systems for various applications, such as electric vehicle charging station and distributed energy systems, due to the compact size and cost-effectiveness. Therefore, a novel dual-input single-output high step-up dc-dc converter with three-winding coupled inductor (DISO-TWCI), which secondary and tertiary windings are integrated with switched capacitor, is proposed to achieve a high-voltage conversion ratio without an extremely duty cycle, and the diode-capacitor clamp circuit is utilized to minimize the voltage spikes across switches, which is beneficial for selecting switches with low-voltage ratings. Moreover, the switches can achieve the zero current switching (ZCS) with the help of leakage inductor from TWCI. By integrating the passive clamp network, the number of components in DISO-TWCI can be reduced, significantly enhancing its performance. The operating principles, steady-state analysis, design, and performance analysis of DISO-TWCI are described in detail. Finally, the theoretical correctness is verified by building an experimental prototype with a switching frequency of 100 kHz. The rated power is 400 W with 24–24-V input and 400-V output.

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一种新型电动汽车充电站用三绕组耦合电感非隔离双输入高升压DC-DC变换器

双输入dc-dc变换器由于体积小、性价比高，越来越多地被认为是各种应用的集成系统，如电动汽车充电站和分布式能源系统。为此，提出了一种新型的双输入单输出高升压三绕组耦合电感dc-dc变换器（DISO-TWCI），该变换器的二次和三绕组与开关电容集成在一起，以实现高电压转换率，而不需要极大的占空比，并且利用二极管-电容箝位电路来最小化开关间的电压尖峰，这有利于选择低额定电压的开关。此外，该开关还可以借助TWCI的泄漏电感实现零电流开关（ZCS）。通过集成无源钳位网络，可以减少DISO-TWCI中的元件数量，显著提高其性能。详细介绍了DISO-TWCI的工作原理、稳态分析、设计和性能分析。最后，通过建立开关频率为100khz的实验样机，验证了理论的正确性。额定功率400w，输入2424v，输出400v。

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来源期刊

IEEE Transactions on Transportation Electrification Engineering-Electrical and Electronic Engineering

CiteScore

12.20

自引率

15.70%

发文量

449

期刊介绍： IEEE Transactions on Transportation Electrification is focused on components, sub-systems, systems, standards, and grid interface technologies related to power and energy conversion, propulsion, and actuation for all types of electrified vehicles including on-road, off-road, off-highway, and rail vehicles, airplanes, and ships.