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All Journal Indonesian Journal of Science and Technology Indonesian Journal of Educational Research and Technology (IJERT)
A. Khechekhouche
University of El Oued
Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Engineering Environmental Science Materials Science & Nanotechnology Other

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A New Multicarrier Sinusoidal Pulse Width Modulation (SPWM) Strategy based on Rooted Tree Optimization (RTO) Algorithm for Reducing Total Harmonic Distortion (THD) of Switched-Capacitor Nine-level Inverter in Grid-connected PV systems H. Aboub; R. Mechouma; B. Azoui; C. Labiod; A. Khechekhouche
Indonesian Journal of Science and Technology Vol 7, No 1 (2022): IJOST: VOLUME 7, ISSUE 1, April 2022
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v7i1.41716

Abstract

This paper proposed a new strategy of sinusoidal pulse width modulation (SPWM) technique to control three-phase nine-level switched-capacitor inverter (9LSCI) in grid-connected PV systems. The main advantage of this inverter is high voltage gain, achieved by switching the capacitors in series and parallel to boost up the output voltage using low voltage input. To improve the quality of solar energy for injection into the electrical grid, a rooted tree optimization (RTO) algorithm is used to get optimum values of initial angles of multi carriers SPWM technique, giving the lowest possible values of the total harmonic distortion (THD). The design also can maximize the efficiency of the multi-level inverter by minimizing its size using fewer components and a single DC source and reducing the rate of THD. The higher effectiveness and accuracy of the suggested RTO-SPWM technique was tested and verified in comparison to existing classical SPWM technique from the performance of PV-grid systems that it can effectively reduce the total harmonic distortion to 0.16 %.
Design and Realization of a Refuse Sorting System for Educational Perspective A. Allal; A. Chemsa; A. Khechekhouche; S. Saadallah; A. Bouhelal; D. Korti; A. H. A. Lammari
Indonesian Journal of Educational Research and Technology Vol 4, No 1 (2024): (ONLINE FIRST) IJERT: March 2024
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijert.v4i1.58665

Abstract

Our project focused on developing a waste sorting machine for metal, plastic, and glass for educational purposes. We divided it into several parts, including waste types, sorting methods, and recycling processes. All processes were done highlighting the use of the Arduino Uno controller. Additionally, we outlined the tools required for an automated sorting system and go beyond simulations by creating a prototype. Our goal is to establish a waste sorting machine that promotes recycling and environmental protection, providing both financial returns and sustainability by diverting waste from burial or incineration, thus mitigating pollution.
Co-Authors A. Allal A. Bouhelal A. Chemsa A. H. A. Lammari B. Azoui C. Labiod D. Korti H. Aboub R. Mechouma S. Saadallah