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Simulation of large photovoltaic arrays

机译:大型光伏阵列的仿真

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摘要

Large photovoltaic arrays are becoming common as the world moves to replace fossil-fuelled electricity generators. As the array size and project cost increase, it becomes increasingly important to know accurately what the array's performance will be before it is built. Large arrays inevitably contain modules with a spread of performance characteristics such as short-circuit current and open-circuit voltage, and suffer from temperature differences between modules. In this first study of these problems, a model has been developed that accurately predicts the behaviour of a photovoltaic array subject to variability between modules and inhomogeneity of cell temperature across the array. The model was applied to a real rooftop array consisting of 912 modules (298 kW nominal peak power). Based on measured string currents, the predicted average string temperature was compared the temperature measured by a radiometric survey using a drone-mounted IR camera and matched very well.
机译:随着世界范围内逐渐取代化石燃料的发电机,大型光伏阵列正变得越来越普遍。随着阵列大小和项目成本的增加,在构建阵列之前准确了解阵列的性能变得越来越重要。大阵列不可避免地包含具有诸如短路电流和开路电压之类的性能特征的扩展的模块,并且模块之间存在温差。在对这些问题的首次研究中,开发了一个模型,该模型可以准确预测光伏阵列的行为,该行为受模块之间的可变性以及整个阵列中电池温度的不均匀性的影响。该模型应用于包含912个模块(标称峰值功率298 kW)的真实屋顶阵列。根据测得的琴弦电流,将预测的平均琴弦温度与使用安装在无人机上的红外热像仪通过辐射测量测得的温度进行比较,并很好地匹配。

著录项

  • 来源
    《Solar Energy》 |2018年第2期|163-179|共17页
  • 作者单位

    Griffith Univ, Queensland Micro & Nanotechnol Ctr, Nathan, Qld 4111, Australia;

    Griffith Univ, Queensland Micro & Nanotechnol Ctr, Nathan, Qld 4111, Australia;

    Griffith Univ, Queensland Micro & Nanotechnol Ctr, Nathan, Qld 4111, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Photovoltaic; Array model; MPP; Tolerance; Temperature;

    机译:光伏;阵列模型;MPP;公差;温度;
  • 入库时间 2022-08-18 00:22:46

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