基于简化等效电路和温度校正的晶体硅光伏组件I-V特性建模

IF 0.4 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Yuki Ohnishi, Yasuhito Takahashi, Koji Fujiwara, Kazuyuki Hidaka, Hiroshi Morita
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引用次数: 0

摘要

由于气象条件的不确定性,光伏发电系统的电力通常不稳定。稳定地维持电力系统的供需平衡需要对光伏系统的性能进行准确的预测。特别是对于包含不同电气特性或安装角度的组件的光伏系统,需要结合串联和并联各模块的电流-电压(I-V)特性来计算系统的发电功率。因此,需要一种准确的方法来估计各种气象条件下的I-V特征。本文提出了一种简单的晶体硅光伏组件I-V特性建模方法。基于简化的光伏组件等效电路和对短路电流、开路电压、最大功率点电流和电压的温度校正,可以很好地模拟出具有实际应用价值的I-V特性。通过比较PV组件的模拟和实测的I-V特性,验证了所提出方法的有效性。此外,为了证明所提出的建模方法的有效性,将其应用于模拟包含不同角度安装的组件的光伏系统的发电。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling of I-V characteristics for crystalline silicon photovoltaic modules based on a simplified equivalent circuit and a temperature correction

Electric power generated by photovoltaic (PV) systems is generally unstable because of uncertain meteorological conditions. Stably maintaining the supply-demand balance of power systems requires an accurate prediction of the performance of PV systems. Especially for predicting the performance of the PV systems containing modules with different electrical characteristics or installed in different angles, it is necessary to calculate the generated power of the system by combining the current-voltage (I-V) characteristics of each module in series and parallel. Therefore, an accurate method is required for estimating the I-V characteristics in various meteorological conditions. In this paper, a simple modeling method of the I-V characteristics for crystalline silicon PV modules is proposed. The I-V characteristics can be simulated in a good accuracy for practical use based on a simplified equivalent circuit of PV modules and a temperature correction of the short-circuit current, open-circuit voltage, and the current and voltage at maximum power point. The validity of the proposed method is examined by comparing simulated and measured I-V characteristics of a PV module. Furthermore, to demonstrate the effectiveness of the proposed modelling method, it was applied to simulating the power generation of a PV system containing modules installed in different angles.

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来源期刊
Electrical Engineering in Japan
Electrical Engineering in Japan 工程技术-工程:电子与电气
CiteScore
0.80
自引率
0.00%
发文量
51
审稿时长
4-8 weeks
期刊介绍: Electrical Engineering in Japan (EEJ) is an official journal of the Institute of Electrical Engineers of Japan (IEEJ). This authoritative journal is a translation of the Transactions of the Institute of Electrical Engineers of Japan. It publishes 16 issues a year on original research findings in Electrical Engineering with special focus on the science, technology and applications of electric power, such as power generation, transmission and conversion, electric railways (including magnetic levitation devices), motors, switching, power economics.
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