Development of a generalised PV model in MATLAB/Simulink using datasheet values

The Journal of Engineering

Al-Motasem I. Aldaoudeyeh¹ 

[1] Department of Electrical and Computer Engineering , NDSU , Fargo, ND , USA

关键词: parameter estimation;    generalised PV model;    open-circuit voltage;    NOCT;    STC;    improved single-diode modelling approach;    MPP prediction;    maximum power point prediction;    current-voltage characteristics;    nominal operating cell temperature;    t;    em cell structure;    MATLAB-Simulink;    datasheet value;    st;    ard test condition;    statistical variance;    photovoltaic module;   

DOI  :  10.1049/joe.2017.0257

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

This study proposes an improved single-diode modelling approach for photovoltaic (PV) modules suitable for a broad range of the PV technologies available today, including modules based on tandem cell structures. After establishing the model (which has an overall of seven parameters), this study devises a methodology to estimate its parameters using Standard Test Conditions (STC) data, Nominal Operating Cell Temperature (NOCT) data, and temperature coefficient values as provided in most manufacturers’ datasheets. Simulation results and their comparison with a previous work show a very accurate prediction of critical points in the current-voltage characteristics curve. The precise prediction happens for both STC and NOCT conditions and the error in predicting maximum power point (MPP) lies within 1% limit, and the error in its corresponding voltage and current is almost always within 2% limit. Further, for both MPP and open-circuit voltage, the statistical variance around manufacturer measurements due to temperature changes is demonstrated to be low for five various module technologies.

【 授权许可】

CC BY