An Improved PV Modules Modelling Technique

An Improved PV Modules Modelling Technique

Shuaibu Musa Adam 1), Kangshi Wang 1), Jieming Ma 1,4), Vladimir Hahanov 2), Svetlana Chumachenko 2), Eugenia Litvinova 2), Ka Lok Man 1,3,4,5*)
1) School of Advanced Technology, Xi’an Jiaotong-Liverpool University, Suzhou 215123, China
2) Design Automation Department, Kharkov University of Radio Electronics, Kharkov, Ukraine
3) Swinburne University of Technology Sawarak, Malaysia
4) imec-DistriNet, KU Leuven, Belgium
5) Kazimieras Simonavičius University, Lithuania

Abstract: The world’s electric power generation is gradually shifting ground from conventional to renewable energy sources (RES) in order to mitigate the negative consequences of the former. Solar photovoltaic energy is regarded as the most attractive of all the RES due to its low installation and maintenance costs, longer lifetime and shorter payback period. As such, an accurate, robust, and flexible modelling of the PV modules is necessary for an improvement in maximum power extraction, partial shading condition (PSC) elimination, accurate and reliable photovoltaic (PV) panel sizing. In this study, MATLAB programming was used to implement the five-parameter single-diode model (SDM) PV modules in the MATLAB/Simulink using the manufacturer’s datasheet information. The modules were implemented through the I-V equation parameters estimation of the SDM from the manufacturer’s datasheet. The performance of different PV module technologies implemented was evaluated at STC. Analyses of the I-V and P-V curves characteristics of the developed models were carried out. Further models analyses were conducted under various test conditions. Models validation was performed by comparing the results obtained with that of selected in-built PV models. Different factors affecting the modules’ performance were also evaluated. Finally, a Simulink model of the PV module was also developed for easy to use with any circuit simulator. The proposed modelling technique meets the key features of minimal differences between the modelled and actual measurements data, most especially at the maximum power points, while exhibiting a fast convergence with good precision.

Keywords: PV modules modelling; MATLAB/Simulink; single-diode model; photovoltaic module

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