光伏组件热模型选择对组件性能计算误差的影响

IF 1.204 Q3 Energy
S. E. Frid, A. V. Mordynskii, N. R. Avezova
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引用次数: 0

摘要

摘要 这项工作的目的是确定在计算中使用一种或另一种方法计算光电模块发热量(热模型)时,光电模块温度值和发电量的误差。本文回顾了现有的光电模块热模型及其比较。即使是最简单的模型,也能计算出开放式机架安装的光伏组件的温度,误差小于 20°C,而在不符合其开发条件的气候条件下,其产生的功率误差为 2-3%。复杂的非稳态热模型只能在有限的范围内使用,这不仅是由于其实施的复杂性。作为基于模块热平衡方程的理论模型,至少在选择传热系数计算公式时,需要进行实验验证,这就大大增加了工作的复杂性。除了计算组件发热的方法外,还有更重要的计算误差来源:组件表面的灰尘和污垢以及其他因素。从发电量计算误差的角度来看,光伏组件热模型的选择并不重要,所有最常用的热模型都能得出大致相同的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Influence of a Photovoltaic Module Thermal Model Choice on the Error of Calculating the Module Performance

The purpose of this work is to determine the error introduced into the values of the temperature of a photoelectric module and the power generated by it by using one or another method of accounting for its heating (thermal model) in the calculation. The existing thermal models of photovoltaic modules and their comparison are reviewed. Even the simplest models can calculate the temperature of an open rack mounted photovoltaic module with an error of less than 20°C and the power it generates with an error of 2–3% in climatic conditions that do not coincide with the conditions of its development. Complex unsteady thermal models can only be used to a limited extent, not only due to the complexity of their implementation. Being theoretical, based on the thermal balance equations of a module, they require experimental verification, at least for the selection of formulas for calculating heat transfer coefficients, which greatly complicates the task. In addition to the methods of accounting for module heating, there are more significant sources of calculation errors: dust and dirt on the module surface along with others. The choice of a thermal model of a photovoltaic module is not critical from the viewpoint of calculation error of the generated power, all the most popular thermal models give approximately the same result.

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来源期刊
Applied Solar Energy
Applied Solar Energy Energy-Renewable Energy, Sustainability and the Environment
CiteScore
2.50
自引率
0.00%
发文量
0
期刊介绍: Applied Solar Energy  is an international peer reviewed journal covers various topics of research and development studies on solar energy conversion and use: photovoltaics, thermophotovoltaics, water heaters, passive solar heating systems, drying of agricultural production, water desalination, solar radiation condensers, operation of Big Solar Oven, combined use of solar energy and traditional energy sources, new semiconductors for solar cells and thermophotovoltaic system photocells, engines for autonomous solar stations.
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