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Evaluation of mathematical methods to characterize the electrical parameters of photovoltaic modules

机译：评估数学方法，以表征光伏模块的电气参数

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摘要

The effectiveness and accuracy of the methods used in modeling photovoltaic (PV) cells are necessary for predicting the performance of PV systems. This article presents and analyses four methods used to estimate the unknown parameters of photovoltaic devices for one- (four and five parameters) and two-diode (seven parameters) models. The study has three main objectives: (i) extract the unknown parameters by the four methods for the 28 modules of different PV technologies (mono-crystalline, multi-crystalline, HIT, and amorphous) and manufacturers under standard test conditions, (ii) verify the effectiveness and the accuracy of the methods, at each current-voltage curve data point (category 1), and the error relative at each short-circuit current (I-sc), open circuit voltage (V-oc) and peak power (P-p) points (category 2) and (iii) study the accuracy and reliability of the four methods for the energy measurement of a PV plant of 1.75 kW over three days installed in desert environment. The results show that the most accurate method is obtained by the four parameters one-diode model. It was shown that there is a good agreement with all important points of the I-V curves; especially at I-sc, V-oc and P-p points, and with the energy delivered by the PV system in the three days.
机译：用于预测光伏系统性能的模拟光伏（PV）电池中使用的方法的有效性和准确性。本文介绍并分析了用于估计一个（四个和五个参数）和两二极管（七个参数）模型的光伏器件未知参数的四种方法。该研究有三个主要目标：（i）通过标准试验条件下的28种不同PV技术（单晶，多晶，击球和非晶态）和制造商的28个模块的四种方法提取未知参数。（ii）在每个电流 - 电压曲线数据点（类别1）处验证方法的有效性和准确性，以及每个短路电流（I-SC）的误差，开路电压（V-OC）和峰值功率（PP）积分（第2类）和（III）研究了在沙漠环境中安装的三天内为1.75 kW的PV工厂的四种方法的准确性和可靠性。结果表明，通过四个参数单二极管模型获得最准确的方法。结果表明，与I-V曲线的所有重要观点都有良好的一致性;特别是在I-SC，V-OC和P-P点，并在三天内通过PV系统提供的能量。

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