Abstracts Book - IMRC 2018

• SC4-P032
CONSTRUCTION OF A SOLAR TEST BENCH FOR THE
CHARACTERIZATION OF COMMERCIAL PHOTOVOLTAIC
MODULES MEASURING PARAMETERS IN REAL TIME.
Jimmy Rodrigo Perez Soto 1 , Roger Castillo Palomera 2 , Minerva Gamboa Sanchez 3 , Alfredo Olea
Rogel 2 , Jose Campos Alvarez 4
1
Universidad Politécnica de Chiapas, Maestria en Energias Renovables, Mexico. 2 Universidad
Politécnica de Chiapas, energías renovables y sustentabilidad, Mexico. 3 Universidad Politécnica
de Chiapas, Tecnología ambiental, Mexico. 4 Instituto de EnergÍas Renovables Universidad
Nacional Autónoma de México, energías renovables y sustentabilidad, Mexico.
The measuring equipment allows us to perform real-time measurement tests of
certain parameters to characterize photovoltaic modules. They are of much
importance and a subject of great interest for people and companies that are
dedicated to the investigation of photovoltaic cells with new materials, searching
for a better performance at a lower cost. Since modules and solar cells are the
most important components in a photovoltaic system, it is necessary to verify if
their operation is adequate for a correct implementation of it. In the following
work we build a solar test bench capable of measuring parameters such as: Solar
radiation (W/m²), Open circuit voltage (Voc), Short circuit current (Isc),
Temperature (°C), Internal resistance (Ω) and Electric power (W). For to be
implemented in the Polytechnic University of Chiapas, in order to generate
characteristic I-V curves that help us to know the degradation and determine the
state of it. To perform the measurements, an automated system is used that
takes data in real time the aforementioned parameters. To make this possible,
very precise measuring equipment is used, such as: Keithley digital multimeter
model 2750 with 200 channels, temperature sensors Ds18b20, pyranometers,
and a steel structure with rails fitted with electric motors controlled by Arduino
Mega from a MatLab interface for automation. Where the modules are placed
performing controlled simulations such as solar radiation, which allow
observing the photoelectric results that define the current state of the module
in question. As a result, it is expected to demonstrate that it is possible to
perform measurements in a controlled manner to characterize the photovoltaic
modules that allow to determine the real efficiency and study the damages
caused by environmental factors to which they are exposed during normal
operation conditions with respect to time.