一个单开关高级直流-直流转换器,由合电感器和开关电容器衍生,用于光伏系统
Ali Sepahvandi1, Behrooz Rezaeealam2, Morteza Mikhak-Beyranvand3
1Lorestan University, Khorramabad, 68151-44316, Iran.
Scientific reports
|November 14, 2024
概括
一个新的单开关高级直流-直流转换器用于连接到电网的光伏系统,通过合的电感器和开关电容器有效地提高电压. 这种设计减少了损耗,并实现了高效率,使其成为太阳能应用的理想选择.
科学领域:
- 电气工程 电气工程
- 可再生能源系统可再生能源系统
- 电力电子 电力电子 电力电子
背景情况:
- 连接到电网的光伏 (PV) 系统需要高效的直流-直流转换器来实现高电压增益.
- 传统的转换器经常面临高电压压力和功率损失的挑战.
研究的目的:
- 为连接到电网的光伏系统提出一种新的单开关高级直流-直流转换器.
- 通过合的电感器和开关电容器设计来增强电压增益和减少功率损失.
主要方法:
- 拟议的转换器使用并行电容充电和连续放电,并配电感应器和开关电容.
- 提升和反提升电容器用于吸收泄漏感应能量并减少开关电压压力.
- 一个原型被开发和测试以验证转换器的性能.
主要成果:
- 转换器在适当的工作周期下实现了高电压增益 (24V至400V).
- 由于吸收的泄漏感应能量和较低的RDS (ON) 开关,观察到更少的开关和导电损失.
- 该原型在200瓦的输出功率下显示了95.89%的峰值效率.
结论:
- 单开关高升级直流-直流转换器为连接到电网的光伏系统提供了一个有前途的解决方案.
- 该设计有效地增加了电压增益,同时最大限度地减少了功率损失,从而提高了整体系统效率.
- 实验结果证实了转换器在实际应用中的可行性和高性能.
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