一个基于电压乘数整流器的新型间接非隔离高增益直流-直流增压转换器
Majid Hosseinpour1, Elham Seifi2, Ali Seifi2
1Department of Electrical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran. hoseinpour.majid@uma.ac.ir.
Scientific reports
|July 19, 2025
概括
本研究介绍了一种高效的间接直流-直流增压转换器与电压乘数整流器,实现可再生能源应用的96%效率. 无变压器设计提供高电压增益和减少波纹,提高系统可靠性和降低成本.
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:
- 有效的直流-直流电压转换对于整合可再生能源和管理直流微电网中的电力至关重要.
- 现有的增压转换器拓经常面临高电压增益,输入波纹和组件应力等挑战,限制了它们的适用性.
- 无变压器的设计是可取的,以减少电力电子转换器的尺寸,成本和电磁干扰 (EMI).
研究的目的:
- 提出和分析一种新的交叉直流-直流提升架构,其中包含一个电压乘数整流器 (VMR) 电路.
- 调查转换器的设计方法,不同工作周期的操作特性和性能指标.
- 证明拟议的转换器适用于储能,电力运输和可再生能源集成等应用.
主要方法:
- 详细检查转换器的两相交叉增压阶段和随后的VMR阶段.
- 在理想和非理想条件下分析稳定状态行为,电压增益特征以及功率损失计算.
- 模拟25V到270.5V的电压转换,并使用实验室原型进行实验验证.
主要成果:
- 拟议的间接增压转换器实现了高电压增益,并显著减少了输入电压波动.
- 在100W的输出功率下记录了96%的最大效率,证实了交叉操作和VMR的有效性.
- 模拟和实验结果验证了理论分析,证明了转换器性能的高精度和可靠性.
结论:
- 拟议的无变压器交联直流-直流增压转换器与VMR为高压增益应用提供了具有成本效益和高效的解决方案.
- 交叉操作提高了EMI性能并延长了源寿命,而VMR电路实现了高直流输出电压.
- 该设计的低开关应力和最小的尺寸/成本使其成为可再生能源系统和DC微电网的理想选择.
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