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考虑积尘污染效应的光伏电站选址:一种基于不确定性与可靠性的新型混合框架及最优清洗调度
Photovoltaic plant site selection considering dust soiling effects: A novel hybrid framework based on uncertainty and reliability with optimum cleaning schedule
语言:
中文摘要
摘要 太阳能电站面临的主要挑战之一是积尘问题。在适宜的地点建设太阳能电站可显著降低积尘影响。本研究提出贝叶斯最佳-最劣方法作为概率模型,并结合基于不确定性与可靠性的Z数COCOSO方法,以实现综合评估。为确保评估的稳健性,将结果与其他五种决策方法进行了对比(R² > 0.98)。最后,对所选站点的积尘效应进行了评估,并根据人工、半自动和全自动三种清洗方式确定了最优清洗频率。案例研究选取中东地区受沙尘暴严重影响的胡齐斯坦省进行分析。结果表明,沙尘事件发生频率影响最大,马赫沙赫尔站点是最适合建设太阳能电站的地点。此外,降雨在冷季是一种有效的自然清洁过程,但在暖季,积尘率仍高达90%。太阳能板清洗优化结果显示,人工、半自动和全自动清洗技术每年分别需要清洗2次、4次和13次。该评估表明,所提出的框架对缓解积尘问题具有显著作用。
English Abstract
Abstract One of the main challenges faced by solar plants is soiling issues. Establishing solar plants in suitable locations can significantly reduce the soiling effects. In this study, Bayesian Best-Worst method is proposed as a probabilistic model , along with the COCOSO based on uncertainty and reliability ( Z -numbers). For robust evaluation, the results are compared with five other decision-making methods (R 2 > 0.98). Finally, the soiling effects at the selected site were assessed, and the optimal cleaning schedule was determined based on three types of cleaning: manual, semi-automatic, and fully automatic. For the case study , the Khuzestan region, one of the areas heavily affected by dust storms in the Middle East, was examined. The results showed that the frequency of dust events has the highest impact, and the Mahshahr site is the most suitable location for solar plant. Additionally, rainfall was found to be an effective natural cleaning process during the cold season, but in the warm seasons, the soiling ratio decreased to 90 %. The optimization results for cleaning solar panels indicated 2, 4, and 13 cleanings per year are required for manual, semi-automatic, and automatic technologies, respectively. This assessment showed the proposed framework have strong impact on mitigation of soiling issues.
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SunView 深度解读
该研究针对光伏电站选址中的积灰问题,提出基于不确定性和可靠性的混合决策框架及最优清洁策略,对阳光电源SG系列逆变器部署和iSolarCloud智能运维平台具有重要应用价值。研究量化了降雨自然清洁效应和不同清洁技术的频次优化(手动2次/年、半自动4次/年、全自动13次/年),可为iSolarCloud平台的预测性维护算法提供积灰损失建模依据,结合MPPT优化技术动态补偿发电损失。该框架的概率决策方法可集成到电站选址评估工具中,特别适用于中东等高尘环境的光伏+储能项目,助力ST系列储能系统和SG逆变器在恶劣环境下的可靠性提升和全生命周期收益优化。