Modelling of Photo Voltaic Solar Panel for Constant Electric Load under Weather Condition of Jigjiga
No Thumbnail Available
Date
2018-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
AAU
Abstract
This paper presents simulation of a typical PV panel (which is Kyocera 200GT) for constant
electric loads (which are 2Ω, 4Ω, 6Ω, and 8Ω) under weather condition of a tropical region. The
specific case of the city Jigjiga (9.35°N,42.8°E), located in the Eastern region of Ethiopia is
considered. Electrical characteristics of the PV module are determined on the basis of detailed
numerical algorithm, which was designed based on tested numerical technique from reviewed
articles. The thesis starts from modeling electrical characteristics of the PV devices by taking the
manufacturers data sheet or specification as input based on a single diode PV model, including
the effect of the series and parallel resistances. The result is accurate and can be validated with
experimental results.
An optimum tilt angle that improves the annual performance of the PV panel is calculated; and
every analysis of the PV system is carried on the optimum angle. Parallelly, radiation flux
improvement on the PV module, due to the fixing of the PV panel to its optimum angle is
analyzed for different months.
The overall evaluation of the hourly variation in the electrical performance of the PV module is
done by means of graphical technique, which determines the operating point of the PV module
on voltage versus current plane for each load. Hourly variation in electrical performance of the
PV module (i.e. current, voltage, and power output) compared for different days under 2Ω
electric load. Finally, power and energy output of the PV panel is compared for each load. The
4Ω electric load resulted a best operating performance of the PV panel on a daily basis for 11
days of the month of January (out of 12 days on which measurements are taken for the month),
but in the last day it resulted a poorer performance with respect to the other two electrical loads
(i.e. 6Ω and 8Ω electric loads).Hence it is concluded that every weather condition doesn’t f avor
a single load all the time, hence to select a single electric load for a PV panel for its optimized
operation at a specific weather condition or site, the same type of analysis shall be done on
annual basis.
Description
Keywords
Photo Voltaic Solar Panel, Electric Load, Jigjiga