Open AccessRESISTANCE, TEMPERATURE AND IRRADIANCE PARAMETER ANALYSIS OF A SINGLE DIODE PHOTOVOLTAIC CELL MODEL
Author(s) -
O A Ekwe,
K N Ukoima
Publication year - 2019
Publication title -
umudike journal of engineering technology
Language(s) - English
Resource type - Journals
ISSN - 2545-5257
DOI - 10.33922/j.ujet_v5i1_11
Subject(s) - equivalent series resistance , irradiance , photovoltaic system , voltage , diode , shunt (medical) , short circuit , materials science , control theory (sociology) , equivalent circuit , mechanics , matlab , open circuit voltage , internal resistance , solar irradiance , optoelectronics , power (physics) , electrical engineering , physics , engineering , computer science , optics , thermodynamics , atmospheric sciences , medicine , control (management) , battery (electricity) , artificial intelligence , cardiology , operating system
This paper presents an analysis of parameter variations of a single-diode solar cell model. The parameters analyzed are the series resistance, shunt resistance, temperature and radiation change. Model equations are derived and simulated. All simulations were performed in MatLab using looping iterative method. Results obtained show that an increase in series resistance causes a decrease in short-circuit current and output power. A decrease in shunt resistance also causes a decrease in short circuit current and output power. An increase in temperature above the nominal value of 25oC causes a significant decrease in the open circuit voltage. An increase in irradiance above a nominal value of 1000 W/m2 causes the short circuit current to increase from 8.21A at 1000 W/m2 to 10.67A at 1300W/m2. It can be seen that parameter variations have a net effect on the current-voltage (I-V) and power-voltage (P – V) characteristics.