Design and Conception of Platform that Allows to Connect Different Solar Panels and Loads through a DC-DC Buck Converter
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Date
2022-12-27
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JOURNAL OF NANO- AND ELECTRONIC PHYSICS
Abstract
A step-down converter-based solar system was designed to reduce and stabilize voltage through adjustable
PWM control. To power different loads, we applied a constant voltage to charge the battery
throughout the charging time and with good efficiency, even if the solar panel was subjected to shadows or
other disturbances. We created a platform to connect photovoltaic (PV) modules to the loads via a DC-DC
buck converter with a voltage of up to 38 V and a maximum current of 5 A with a power of 75 W, as well as
the voltage at the output up to 36 V. Our results are that we can use three solar panels and attach them to
the platform, then place the battery as a load, fix the value of PWM on the converter, and make various
measurements on a normal day and a disturbance day. We created an embedded system based on the Arduino
ATmega328p microcontroller and sensors to measure different parameters such as voltage, current,
power, temperature and monitor the voltage value on the load. Also, an algorithm was implemented in the
processor to measure different instantaneous parameters, including the panel values (Vpv, Ipv, Ppv), as well
as the buck parameters (Vo, Io, Po) using current sensors and tension. This work makes it possible to monitor
various instantaneous electrical quantities at the panel and load levels and to acquire real-time data
for various parameters, also connect the platform to a computer via a serial port to send data and save it
using a microcontroller, and then read the data into a PLX-DAQ spreadsheet.
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Citation
Abdelkader Saidi, Boubekeur Azoui, Chaouki Ghenai, Farid Lekmine, Design and Conception of Platform that Allows to Connect Different Solar Panelsand Loads through a DC-DC Buck Converter, JOURNAL OF NANO- AND ELECTRONIC PHYSICS, Vol. 14 No 6, 06004(6pp) (2022), DOI: 10.21272/jnep.14(6).06004