浮式光伏系统:光伏电缆沉浸测试和潜在影响
Ricardo Rebelo1, Luis Fialho1,2, Maria Helena Novais1,2
1Renewable Energies Chair, University of Evora, Evora, 7000-651, Portugal.
Open research Europe
|October 9, 2024
概括
在盐水中浸泡带有保温的浮式光伏电缆加快了降解速度,导致铜释放. 低温加剧了这个问题,影响了电气性能和水生环境.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 可再生能源技术可再生能源技术
背景情况:
- 浮式光伏 (FPV) 正在出现,但它们对水生生态系统的影响和组件耐用性尚未得到充分研究.
- 一个关键的问题是FPV电缆的沉浸,可能会降低绝缘性能,导致能量损失和水污染.
研究的目的:
- 评估潜水对光伏电缆耐用性的影响.
- 为了评估退化的FPV电缆对环境的潜在污染.
主要方法:
- 带有两种隔热类型的光伏电缆被浸入淡水和人造海水中.
- 进行了每周电绝缘测试,水质监测和对铜和微塑料的分析.
主要成果:
- 在盐水中浸泡皮覆盖电缆导致了加速降解和减少电气绝缘.
- 检测到从退化的覆盖电缆中将铜释放到水环境中.
结论:
- 沉浸,特别是在盐水中和结合结温度,加快了隔热光伏电缆的退化.
- 降解导致水体的绝缘电阻降低,可见损坏和铜污染.
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