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Wyszukujesz frazę "Benguesmia, Hani" wg kryterium: Autor


Wyświetlanie 1-6 z 6
Tytuł:
Particle swarm optimization of a neural network model for predicting the flashover voltage on polluted cap and pin insulator
Autorzy:
Belkebir, Amel
Bourek, Yacine
Benguesmia, Hani
Powiązania:
https://bibliotekanauki.pl/articles/2146737.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
flashover voltage
particle swarm optimization
prediction
artificial pollution
neural network
napięcie przeskoku
optymalizacja roju cząstek
prognozowanie
sieć neuronowa
Opis:
This paper proposes training an artificial neural network (ANN) by a particle swarm optimization (PSO) technique to predict the flashover voltage of outdoor insulators. The analysis follows a series of real-world tests on high-voltage insulators to form a database for implementing artificial intelligence concepts. These tests are performed in various degrees of artificial contamination (distilled brine). Each contamination level shows the amount of contamination in milliliters per area of the isolator. The acquisition database provides values of flashover voltage corresponding to their electrical conductivity in each isolation zone and different degrees of artificial contamination. The results show that ANN trained by PSO can not only provide better prediction results, but also reduce the amount of computation efforts. It is also a more powerful model because: it does not get stuck in a local optimum. In addition, it also has the advantages of simple logic, simple implementation, and underlying intelligence. Compared to the results obtained by practical tests, the results obtained present that the PSO-ANN technique is very effective to predict flashover of high-voltage polluted insulators.
Źródło:
Diagnostyka; 2022, 23, 3; art. no 2022309
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of fractional order PI controller using metaheuristics algorithms applied to multilevel inverter for grid connected PV
Autorzy:
Boucheriette, Wafa
Mechgoug, Raihane
Benguesmia, Hani
Powiązania:
https://bibliotekanauki.pl/articles/11541888.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
MLI inverter
fractional order PI
meta-heuristic
PSO
ABC
GWO
THD
metaheurystyka
falownik
układ regulacji
Opis:
Due to its multiple advantages in industrial and grid-connected applications, Multi-Level Inverters (MLIs) have increased in popularity in recent years. To improve the efficiency of a grid-connected PV system's integrated multi-level inverter fractional order PI (FOPI) controllers are used to describe the control process. The control system is made up of three control loops based on FOPI controllers: one for controlling the intermediate circuit voltage (Vdc) and the other two for controlling the direct and quadratic currents (Id, Iq) supplied by the multilevel inverter. The proposed controller parameters (Kp, KI, λ) must be selected in order to increase the efficiency of the multi-level inverter while decreasing the total harmonic distortion (THD) of the output current of the inverter as well as voltage. For this we used three meta-heuristic algorithms (PSO, ABC, GWO). The performance of the three controllers PSO-FOPI, ABC-FOPI and GWO-FOPI controller is compared. The findings showed that GWO-FOPI performs better than the other PSO-FOPI and ABC-FOPI in accuracy and total harmonic distortion THD term. The simulation will be conducted using Matlab/Simulink.
Źródło:
Diagnostyka; 2023, 24, 3; art. no. 2023311
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Finite element modeling for electric field and voltage distribution along the cap and pin insulators under pollution
Autorzy:
Ghermoul, Oussama
Benguesmia, Hani
Benyettou, Loutfi
Powiązania:
https://bibliotekanauki.pl/articles/2203634.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
1512L
electric field
electrical potential
COMSOL Multiphysics
pollution
pole elektryczne
potencjał elektryczny
zanieczyszczenie
oprogramowanie COMSOL Multiphysics
Opis:
The knowledge of the behavior of both the electric potential and electric field is one of the main factors needed when designing an insulator. Using AutoCAD software a 2D cap and pin 1512L insulator model was created in the clean state and under pollution from one to five insulators separately making a chain of insulators for a total of 10 models. Later they are imported to COMSOL Multiphysics 5.6 software, simulations of the 1512L insulator were made to see the effect the pollution has and the differences that occur on the distribution with the addition of more insulators in the chain. The potential distribution starts to develop a pattern after a certain number of insulators in the chain while the pollution induces high value spikes in the field distribution. Finite-element-analysis for numerical simulation of the pollution effect in outdoor insulators: a review and a novel method.
Źródło:
Diagnostyka; 2023, 24, 2; art. no. 2023201
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of heterogeneous cavities on the electrical constraints in the insulation of high-voltage cables
Autorzy:
Bakri, Badis
Benguesmia, Hani
Mira, Aya
M’ziou, Nassima
Powiązania:
https://bibliotekanauki.pl/articles/2174483.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
cables
defect
electric field
electric potential
heterogeneous cavities
kabel
wada
pole elektryczne
potencjał elektryczny
Opis:
The main insulation layer is the most important layer of the high-voltage cable, and the quality of this material directly affects the life of the cable. It is also known that contamination, porosity and associated partial discharges in the insulation can affect the service life of cables. In this paper, we use the COMSOL Multiphysics software, which is based on the finite element method in AC/DC, 2D electrostatic. Our study shows the effect of heterogeneous cavities on the functioning of electrical cables. This work contains the study of electric field distribution and potential of a model of high voltage cable; we took into account the absence and the presence of heterogeneous cavities. The study was conducted using numerical results with mathematical validation. The obtained results are considered satisfactory, favorable and very promising.
Źródło:
Diagnostyka; 2023, 24, 1; art. no. 2023109
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the turbulence model on the heat ventilation analysis in a box prototype
Autorzy:
Benguesmia, Hani
Bakri, Badis
Driss, Zied
Ketata, Ahmed
Driss, Slah
Powiązania:
https://bibliotekanauki.pl/articles/327916.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
CFD
turbulence models
heat ventilation
box prototype
solar system
modele turbulencji
wentylacja cieplna
układ słoneczny
Opis:
Investigations of the flow in a building system are crucial for understanding the fundamental basis of the aerodynamic structure characteristics. The CFD simulations were conducted using ANSYS Fluent 17.0 software, which solves the Navier-Stokes equations in conjunction with different turbulence models and by a finite volume discretization method. Particularly, a comparison between the experimental and standard k-ω, BSL k-ω, SST k-ω, standard k-ɛ, RNG k-ɛ and Realizable k-ɛ turbulence model has been developed. The comparison between the founded results affirms that the standard k-ω turbulence model is the most efficient to model the air flow in the present application. Indeed, the numerical results compared using the experimental data developed in the LASEM laboratory confirms the validity of the numerical method. The good agreements validate the considered computational method.
Źródło:
Diagnostyka; 2020, 21, 3; 55-66
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental study of pollution and simulation on insulators using COMSOL® under AC voltage
Autorzy:
Benguesmia, Hani
Bakri, Badis
Khadar, Saad
Hamrit, Fareh
M’ziou, Nassima
Powiązania:
https://bibliotekanauki.pl/articles/327338.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
insulator
flashover
pollution
high voltage
potential
electric field
izolator
przeskok
wysokie napięcie
pole elektryczne
potencjał
Opis:
The flashover of pollution, observed on the insulators used in high voltage transmission, is one of the most important power transmission stakes. It is a very complex problem due to several factors including the modelling difficulties of complex shapes of insulators, different pollution densities at different regions, non-homogeneous pollution distribution on the insulator surface and unknown effect of humidity on the pollution. In the literature, some static and dynamic models have been developed by making some assumptions and omissions to predict the flashover voltages of polluted insulators. This paper aims to experimentally analyse the flashover process and simulation of the distributions of the potential and the electric field under 50 Hz applied voltage on a real model simulating the 175CTV outdoor insulators largely used by the Algerian Company of Electricity and Gas (SONELGAZ). This real model is studied under non-polluted (distilled water), and polluted (distilled water and sand) environments. The simulations were carried out by using the COMSOL multiphysics software. This program uses the finite element method to solve the partial differential equations that describe the field. Experimental results made in the laboratory and simulation results are original and found to be congruent.
Źródło:
Diagnostyka; 2019, 20, 3; 21-29
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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