立面光伏墙体热电性能的动态变化特性及预测模型研究*
摘要：
在实际运行工况下,立面光伏墙体热电参数的动态变化对其热电性能提升起关键作用。为评估其在不同外界条件下的动态变化特性并实现精确预测,本文建立了立面光伏墙体传热模型,搭建了立面光伏系统性能监测实验平台,通过阴、晴天工况下的多维度对比测试,量化了立面光伏墙体热工性能和发电性能在实际运行条件下的动态响应过程,分析了不同气候条件、日照强度和室外气温下的热电性能差异。此外,本文还构建了基于太阳辐照度、室外气温及热电数据的输出性能动态预测模型。
Abstract：
The dynamic change of thermoelectric parameters of the facade photovoltaic (PV) wall plays a key role in the improvement of its thermoelectric performance under the actual operating conditions. In order to assess the dynamic change characteristics under different external conditions and achieve accurate prediction, this study establishes a heat transfer model for facade PV walls, builds an experimental platform for facade PV system performance monitoring, quantifies the dynamic response process of the thermal and power generation performances of facade PV walls under actual operating conditions through multi-dimensional comparative tests under cloudy and sunny conditions, and analyses the differences in the thermoelectric performance under different climatic conditions, insolation intensities, and outdoor air temperatures. In addition, the dynamic prediction model for output performances based on solar irradiance, outdoor air temperature and thermoelectric data is constructed.
Keywords:facade photovoltaic wall; thermoelectric performance; dynamic change characteristic; prediction model; heat transfer model; multiple nonlinear regression; climatic condition