跟踪双面太阳能发电场的优化设计--下一代PV的全面全球分析
Optimum design of tracking bifacial solar farms -- A comprehensive global analysis of next-generation PV
摘要：
东西向垂直和朝南的最佳倾斜双面农场的双面增益已经建立。有人想知道，如果双面增益（和相关的LCOE）可以通过跟踪太阳进一步改善。跟踪双面PV具有改善的温度灵敏度，增强漫射和散射光收集，平坦的能量输出，减少污染等优点。单面跟踪已经提供了许多这些优点，因此双面跟踪的相对优点并不明显。在本文中，我们使用了一个详细的照明和温度相关的双面太阳能发电场模型，以表明双面跟踪光伏提供高达45%的能量增益相比，固定倾斜双面光伏赤道附近，和~10%的双面能量增益超过跟踪monofacial农场与一个0.5的approxido。最佳间距进一步提高了跟踪双面农场的增益。我们的研究结果将通过展示全球部署的能源增益的全球趋势来扩大双面技术的范围和理解。
英文摘要：
The bifacial gain of East-West vertical and South-facing optimally-tilted bifacial farms are well established. One wonders if bifacial gain (and the associated LCOE) may be further improved by tracking the sun. Tracking bifacial PV has advantages of improved temperature sensitivity, enhanced diffuse and albedo light collection, flattened energy-output, reduced soiling, etc. Monofacial tracking already provides many of these advantages, therefore the relative merits of bifacial tracking are not obvious. In this paper, we use a detailed illumination and temperature-dependent bifacial solar farm model to show that bifacial tracking PV delivers up to 45% energy gain when compared to fixed-tilt bifacial PV near the equator, and ~10% bifacial energy gain over tracking monofacial farm with an albedo of 0.5. An optimum pitch further improves the gain of a tracking bifacial farm. Our results will broaden the scope and understanding of bifacial technology by demonstrating global trends in energy gain for worldwide deployment.
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