一个双开关的直流-直流转换器具有高收益的低压燃料电池堆电动汽车
Athikamsetti Rudra Santhosh Kumar1, Arun Nandagopal2
1School of Electrical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
Scientific reports
|November 27, 2025
概括
一个新的双开关直流直流转换器为燃料电池汽车提供了高电压增益,通过更少的部件减少了尺寸和重量. 这种设计最大限度地减少了输入电流的波纹和电压压力,以提高效率.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 可再生能源系统可再生能源系统
背景情况:
- 燃料电池电动汽车 (FCEV) 需要稳定的400V直流链路总线电压.
- 传统的直流-直流转换器在实现高电压增益方面面临挑战,其组件最小,FCEV的输入电流波动低.
研究的目的:
- 为FCEV应用引入一个高增益,提升衍生的,非隔离的直流-直流转换器,具有双开关.
- 为了实现转换器尺寸和重量的显著减少,同时提高性能特征.
主要方法:
- 提出了一种使用双开关的新型非隔离直流-直流转换器拓.
- 与传统设计相比,转换器功能,控制策略和性能特征的分析.
- 在不同的输入电压条件下对拟议的转换器进行硬件验证.
主要成果:
- 拟议的转换器实现了广泛的电压增益范围 (20到8),输入电压从20V到50V.
- 展示了最小的输入电流波纹,减弱的冲进电流和降低的电压应力.
- 成功验证的硬件原型在400V下提供400W的输出功率,负载为1A.
结论:
- 双开关直流-直流转换器有效地满足FCEVs的苛刻电压和功率要求.
- 与现有解决方案相比,该设计提供了更高的性能和更少的物理足迹.
- 这种转换器技术有助于推进高效和紧的电动汽车动力系统.
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