基于功率脱的微逆变器的设计和分析,考虑到寄生性参数
1School of Automation, Beijing Information Science and Technology University, Beijing, China.
Scientific reports
|October 29, 2024
概括
这项研究介绍了一种新的微逆变器设计,使用薄膜电容器取代重的电解电容器,提高光伏系统的寿命. 这项创新改进了电力脱,使得太阳能转换更可靠,更持久.
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:
- 化石燃料的减少推动了对新能源的需求,特别是低功率光伏 (PV) 系统.
- 传统的光伏微逆变器需要大型电解电容器来进行功率脱,由于电容器退化,限制了系统寿命.
- 向单相电网注入的变时电力需要有效的电力波纹平衡.
研究的目的:
- 提出微逆变器的功率分离方法,以提高系统寿命.
- 在光伏微逆变器中用较小的薄膜电容器取代传统的电解电容.
- 分析操作原理和影响拟议微逆变器稳定状态性能的因素.
主要方法:
- 开发用于微逆变器的功率脱原理,其中包含寄生性参数.
- 分析变压器的操作模式及其对解能力的影响.
- 对拟议的微逆变器设计进行模拟和实验验证.
主要成果:
- 使用薄膜电容器的微逆变器设计,与使用电解电容器的设计相比,显著改善了逆变器的寿命.
- 分析了寄生参数和变压器操作,以了解它们对逆变器稳定状态性能的影响.
- 拟议的方法为工业微逆变器设计中精确的设备选择提供了基础.
结论:
- 开发的功率脱策略有效地提高了光伏微逆变器的运行寿命.
- 分析提供了对影响逆变器性能的因素的关键见解,从而实现了优化设计.
- 这项研究有助于为工业应用更准确的组件选择,促进持久和高效的太阳能系统.
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