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首页> 外文期刊>Energy Conversion & Management >Performance of a concentrating photovoltaic monomodule under real operating conditions: Part I - Outdoor characterisation
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Performance of a concentrating photovoltaic monomodule under real operating conditions: Part I - Outdoor characterisation

机译:实际操作条件下聚光光伏单模块的性能:第一部分-室外特性

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Monitoring the performance of concentrating photovoltaic technologies under actual operating conditions is crucial for the prediction of energy yield. This requires an in-depth understanding of the behaviour of such systems through extensive outdoor characterisation and modelling. Detailed information on the outdoor performance of concentrating photovoltaic technology, taking into account the parameters that influence it, is therefore necessary for the evolution of the technology. In this work, a concentrating photovoltaic monomodule was characterised in a high desert climate (in Albuquerque, New Mexico). Due to the complexity of the outdoor performance evaluation of this technology, three relatively clear-sky days that exhibited different atmospheric conditions were selected in order to reduce the noise on the measured parameters and therefore provide a better understanding of its behaviour. One-minute resolution data were accumulated in order to assess the behaviour of the monomodule under real operating conditions. Initially, the monomodule is electrically characterised based on spectral changes. Different spectral indices are evaluated to enable a direct comparison amongst them. The diurnal electrical characteristics and temperature of the monomodule as a function of spectral, irradiance and ambient conditions is then analysed. The results of the three selected days show a maximum operating efficiency of 23.2% while maximum temperatures of 70.3 degrees C and 67.6 degrees C are observed on the diode and heat sink respectively. The importance of considering the influence of the atmospheric parameters on the performance of concentrating photovoltaics is also highlighted. In particular, spectral gains of up to 5% are exhibited due to lower aerosol content and higher precipitable water combined.
机译:在实际运行条件下监控聚光光伏技术的性能对于预测能量产量至关重要。这就需要通过广泛的室外表征和建模来深入了解此类系统的行为。因此,对于聚光光伏技术的室外性能的详细信息,考虑到影响它的参数,对于该技术的发展是必不可少的。在这项工作中,聚光光伏单模块的特点是在高沙漠气候下(在新墨西哥州阿尔伯克基)。由于这项技术的户外性能评估非常复杂,因此选择了三个相对晴朗的天,这些天表现出不同的大气条件,以减少测量参数上的噪声,从而更好地理解其性能。累积一分钟的分辨率数据,以便评估单模块在实际操作条件下的行为。最初,基于光谱变化对单模块进行电气表征。对不同的光谱指数进行评估,以实现它们之间的直接比较。然后根据光谱,辐照度和环境条件分析单模块的昼夜电气特性和温度。选定的三天的结果显示最大工作效率为23.2%,而二极管和散热器的最高温度分别为70.3摄氏度和67.6摄氏度。还强调了考虑大气参数对聚光光伏性能的影响的重要性。特别是由于较低的气溶胶含量和较高的可沉淀水含量,显示出高达5%的光谱增益。

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