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首页> 外文期刊>Applied Energy >Thermal and electrical performance of the dense-array concentrating photovoltaic (DA-CPV) system under non-uniform illumination
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Thermal and electrical performance of the dense-array concentrating photovoltaic (DA-CPV) system under non-uniform illumination

机译：不均匀照明下致密阵列集中光（DA-CPV）系统的热电平和电气性能

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摘要

Dense-array concentrating photovoltaic (DA-CPV) systems suffer from power generation limits due to extreme operation conditions. This study primarily aims to analyze the multi-physics effects of various optical, electrical, and thermal conditions on the performance of DA-CPV systems. Different module configurations are employed in the simulations to evaluate the coupling impacts of changing illumination distributions and temperature profiles on the system performance. The results demonstrate that module configurations have significant influence on the output power and temperature contour of DA-CPV modules. Compared with conventional total-cross-tied connections, decrements of average module temperature and central module temperature by at least 5 and 12 degrees C, respectively, and increment of output power by at least 48.29% are achieved based on the quartered rotational symmetry (QRS) connection. Under various non-uniform illuminations, the maximum power will be obtained at anti-Gaussian temperature profiles. Compared with the uniform and Gaussian temperature profiles, the inverse Gaussian profiles can further improve the module output power by at most 1%. Meanwhile, relying on the achieved correlation between the optimized temperature profiles and illumination shapes for the CPV module with the QRS connection, the output performance of the CPV module under various raidation intensities is evaluated. In the range of 100-1200 W/m(2) of solar radiation, more than 99.7% of the maximum module power is maintained with the optimized anti-Gaussian temperature profile.
机译：密集阵列集中光胶（DA-CPV）系统由于极端操作条件而受到发电限制。本研究主要旨在分析各种光学，电气和热条件对DA-CPV系统的性能的多物理效应。在模拟中采用不同的模块配置来评估更换照明分布和温度谱对系统性能的耦合影响。结果表明，模块配置对DA-CPV模块的输出功率和温度轮廓具有显着影响。与传统的总交叉连接连接相比，平均模块温度和中央模块温度分别减少至少5℃，并基于四分之一旋转对称（QRS）实现至少48.29％的输出功率的增量至少48.29％ ） 联系。在各种非均匀照明下，将在抗高斯温度曲线上获得最大功率。与均匀和高斯温度型材相比，逆高斯轮廓可以进一步提高模块输出功率，最多为1％。同时，依赖于使用QRS连接的CPV模块的优化温度曲线和照明形状之间的相关性，评估CPV模块在各种攻击强度下的输出性能。在太阳辐射的100-1200 W / m（2）的范围内，优化的抗高斯温度曲线保持了超过99.7％的最大模块电源。

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  • 来源
    《Applied Energy》 |2019年第1期|904-915|共12页
  • 作者

    Ju Xing; Pan Xinyu; Zhang Zheyang; Xu Chao; Wei Gaosheng;

  • 作者单位

    North China Elect Power Univ Key Lab Condit Monitoring & Control Power Plant E Beijing 102206 Peoples R China;

    North China Elect Power Univ Key Lab Condit Monitoring & Control Power Plant E Beijing 102206 Peoples R China;

    North China Elect Power Univ Key Lab Condit Monitoring & Control Power Plant E Beijing 102206 Peoples R China;

    North China Elect Power Univ Key Lab Condit Monitoring & Control Power Plant E Beijing 102206 Peoples R China;

    North China Elect Power Univ Key Lab Condit Monitoring & Control Power Plant E Beijing 102206 Peoples R China;

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

    Concentrator photovoltaic; Non-uniform Illumination; Non-uniform temperature; Module configuration; Mismatch loss;

    机译：浓缩器光伏;非均匀照明;不均匀的温度;模块配置;不匹配损失;

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