论文标题
用于光伏电池单二极管模型的参数化的准确分析方法
An Accurate Analytical Approach for the Parameterization of the Single Diode Model of Photovoltaic Cell
论文作者
论文摘要
具有五个参数的单个二极管模型是在模拟环境中对光伏(PV)模块进行建模的最简单,可靠的方法。这些参数需要从PV模块数据表中给出的规范中准确提取,以便模拟模型应表现出与实际测量值相同的特征。为这五个参数求解,需要尽可能准确地代表PV模块的特性的确定集合。在文献中,从PV模块数据表中给出的特征曲线的关键数据点很容易创建前四个方程。然而,主要的挑战是第五方程的制定。由于某些近似或迭代技术导致模拟模型中的差异,文献中发现的方法具有固有的错误。本文提出了一种独特的分析方法,用于制定第五方程,该方程得出了最精确的单二极管模型。从结果可以明显看出,所提出的方法不仅优于单二极管模型方法,而且在模拟PV模块的特征中以最小误差模拟了双二极管。
A single diode model with five parameters is the simplest and robust approach for modeling a photovoltaic (PV) module in a simulated environment. These parameters need to be accurately extracted from the specifications given in the datasheet of the PV module such that the simulation model should exhibit the same characteristics as the actual measurements. A definite set of five independent equations, that should represent the characteristics of the PV module as accurately as possible, is needed to solve for these five parameters. In literature, the first four equations are easily created from the key data points on the characteristic curve given in the datasheet of the PV module. The main challenge however is the formulation of the fifth equation. The approaches found in literature have inherent inaccuracies due to some approximations or iterative techniques leading to discrepancy in the simulated model. This paper presents a unique analytical approach for the formulation of the fifth equation which yields the most accurate single diode model. As evident from the results, the proposed method is superior to not just the single diode model approaches but also to the double diode ones in simulating the characteristics of the PV module with least error.