一个完全可重新配置的串行并行光伏模块的电气性能
Andres Calcabrini1, Mirco Muttillo1, Miro Zeman1
1Photovoltaic Materials and Devices Group, Electrical Sustainable Energy Department, Delft University of Technology, Delft, The Netherlands.
Nature communications
|December 7, 2023
概括
可重新配置的光伏模块在部分阴影下增加了10.2%的能源产量. 然而,在均的照明条件下,由于可重新配置的光伏系统中的切换损失,显示了1.9%的轻微下降.
科学领域:
- 可再生能源系统可再生能源系统
- 光伏技术 光伏技术
- 电气工程 电气工程
背景情况:
- 部分阴影的光伏 (PV) 系统遭受了显著的能量损失.
- 可重新配置的光伏模块提供了一个潜在的解决方案,以减轻遮阳效应.
- 之前的研究依赖于模拟或简化实验进行可行性分析.
研究的目的:
- 为了评估一个全尺寸可重新配置的光伏模块原型的户外性能.
- 在现实条件下,将可重新配置模块的能量产量与静态参考模块进行比较.
- 分析部分阴影和均照明对可重新配置模块性能的影响.
主要方法:
- 部署了一种具有六个可重新配置块的系列并行可重新配置光伏模块的全尺寸原型.
- 在4个月的时间内,对户外表现进行了监测.
- 原型的能量产量与具有静态互连和六个绕道二极管的参考光伏模块进行了比较.
主要成果:
- 在部分遮阳下,可重新配置的模块显示,与参考模块相比,能源生产增加了10.2%.
- 在均照明下,由于开关矩阵的损失,可重新配置模块的能量产量下降了1.9%.
- 建议对重新配置算法进行修改,以优化性能和简化功率转换器设计.
结论:
- 可重新配置的光伏模块显示出在部分阴影环境中提高能源产量的巨大潜力.
- 需要考虑在阴影下提高性能和在统一条件下轻微损失之间的权衡.
- 算法改进可以进一步提高可重新配置光伏模块技术的效率和实用性.
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