Naslov
The Effect of PV module electric properties on the Maximum Power Point (MPP) trajectory with aim of its alignment to electrolyzer U-I characteristics

Autori
Firak, Mihajlo ; Đukić, Ankica

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
5th Dubrovnik Conference on Sustainable Development of Energy Water and Environment Systems : Book of Abstracts + CD proceedings / - , 2009, 156-156

Skup
Dubrovnik Conference on Sustainable Development of Energy Water and Environment Systems (5 ; 2009)

Mjesto i datum
Dubrovnik, Hrvatska, 29.09.2009. - 03.10.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
PV module; series resistance; parallel resistance; ideality factor; U-I characteristic; maximum power point; electrolyzer

Sažetak
In order to combine a PV module and electrolyzer to produce hydrogen from water, we can use an intermediate DC-DC converter to adapt the module's output power features to the electrolyzer input power features. This can also be done without using electronics, thereby saving as much as 700 USD/kW, as previous research has shown. But more sophisticated research should be done to preserve high system efficiency. The final result of that research would result in matching the PV module MPP trajectory (the MPP path in the U-I plane as a result of solar irradiation change) and electrolyzer U-I characteristics. This paper presents an analysis of the influences of PV module electric properties, such as series resistance, parallel resistance and ideality factor, on the MPP trajectory at different levels of solar irradiation. The possibility of a different inclination (right-vertical-left) in relation to an arbitrary chosen electrolyzer U-I characteristic is also demonstrated. Simulated results are obtained using Matlab/Simulink simulations of the well known one diode model which are confirmed by experimentation with a real PV module, where solar irradiation, solar cells temperature, electric current and voltage in the circuit with variable ohmic resistance have been measured.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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