具有成本效益的软切换超高升级直流-直流转换器,具有高功率密度,用于直流微电网应用
Ali Nadermohammadi1, Pouya Abolhassani2, Ali Seifi2
1Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, 51666-16471, Iran. a.nadermohammadi1401@ms.tabrizu.ac.ir.
Scientific reports
|September 2, 2024
概括
本研究介绍了一种用于直流微电网的超高升级 (UHSU) DC-DC转换器. 这种新的设计使用了合电感器,以实现高效的高压转换,并提高了可靠性.
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:
- DC微电网对于智能电网至关重要,可再生能源提高了可靠性和效率.
- 高收益直流-直流转换器对于将太阳能和风能等低压源集成到直流微电网中至关重要.
研究的目的:
- 引入一种新的非隔离的直流-直流转换器,用于超高升级 (UHSU) 电压转换.
- 通过软切换和优化合电感器设计,提高效率并减少组件应力.
主要方法:
- 设计和分析一个非隔离的直流-直流转换器,使用双螺旋合电感器 (CI).
- 实施电源开关和二极管的软切换,以尽量减少损失.
- 运行模式的理论分析和与现有拓的比较.
主要成果:
- 拟议的UHSU转换器在低工作周期和降低CI转速率的情况下实现了显著的电压增加.
- 软开关功能和开关的低压压力有助于提高效率.
- 一个150W的原型证明了有效的性能,在50kHz的频率下将20V转换为300V.
结论:
- 开发的UHSU直流-直流转换器对于需要高电压增益的直流微电网应用非常有效.
- 与传统转换器相比,该设计提供了更好的效率和可靠性.
- 原型验证证实了拟议的可再生能源集成拓的实际可行性.
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