An investigation into the effect of photovoltaic module electric properties on maximum power point trajectory with the aim of its alignment with electrolyzer U-I characteristic

Firak, Mihajlo and Đukić, Ankica (2010) An investigation into the effect of photovoltaic module electric properties on maximum power point trajectory with the aim of its alignment with electrolyzer U-I characteristic. = An investigation into the effect of photovoltaic module electric properties on maximum power point trajectory with the aim of its alignment with electrolyzer U-I characteristic. Thermal Science, 14 (3). pp. 729-738. ISSN 0354-9836. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q3 (2010). Točan broj autora: 2.

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Abstract

In order to combine a photovoltaic module and an electrolyzer to prouce hydrogen from water, an intermediate DC/DC converter can be used to adapt output power features of the module to input power features of the electrolyzer. This can also be done without using electronics, whichre sults in saving as much as 700 USD/kW, asprevious investigation has shown. A more sophisticated in vestigation should be carried out with the aim of improving high system efficiency, resulting in matching the photovoltaic module maximum power point trajectory (the maximum power point path in the U-I plane as a result of solar irradiance change) to the operating characteristic of the electrolyzer. This paper presents ananalysis of the influences of photovoltaic module electric properties, such as series and parallel resistance and non-ideality factor, on the maximum power point trajectory at different levels of solar irradiance. The possibility of vari us in clinations (right - ver ti cal - left) in relation to an arbitrary chosen operating characteristic of the electrolyzer is also demon trated. Simulated results are obtained by using Matlab/Simulink simulations of the well known one-diode model. Simulations have been confirmed with experiments on a real photovoltaic mod le where solar irradiance, solar cell temperature, electriccurrent, and voltage in the circuit with variable ohmic resis tance have been measured.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	Electrolyzer; Maximum power point; Non-ideality factor; Operating (U-I) characteristic; Parallel resistance; Photovoltaic module; Series resistance
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
Indexed in Web of Science:	Yes
Indexed in Current Contents:	No
Quartiles:	Q3 (2010)
Date Deposited:	17 Apr 2015 07:52
Last Modified:	11 Sep 2017 12:42
URI:	http://repozitorij.fsb.hr/id/eprint/3584

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