Publications Scientifiques
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Item SVPWM-Based Control of a Three-Phase Five-Level NPC Inverter for Grid-Connected Solar Power System(Institute of Electrical and Electronics, 2025) Elamri, Oumaymah; Toubal Maamar, Alla Eddine; Oukassi, Abdellah; El Kharki, Abdellah; Hammoudi, Abderazek; Mekhilef, SaadThis study focuses on analyzing a photovoltaic system for energy production and its integration into the grid. Take into account the key grid parameters, including frequency, three-phase system symmetry, and voltage waveforms. Non-sinusoidal voltages can cause interference that affects the operation of networked equipment. To address this issue, a three-phase five-level neutral-point-clamped inverter is incorporated into the system, utilizing the space vector pulse width modulation technique for control. The control strategy of the converter is presented in detail. The study was carried out utilizing Matlab/Simulink, and the simulation outcomes demonstrate the efficiency of this control approach for renewable energy applicationsItem An application of PMU in solar energy generation Plant Connected Power Grid(2019) Mahboubi, Meriem; Bentarzi, Hamid; Ouadi, AbderahmaneSolar energy is one of the most abundant green energies in our planet. In order to satisfy the world demand of electrical energy, solar energy may be used. Identical to all other types of power generation plants, the integration of the solar energy source in power grid has an impact on its operation. Thus, when the electrical power is injected into the power grid by the solar energy source, the system electrical parameters must be well monitored for synchronization purpose. This can be accomplished with the aid of synchro-phasors measurement units. The phase angle of the utility is a critical parameter for the operation of power devices feeding power into the grid like PV inverters. There are many techniques to obtain the grid phase angle such as the zero-crossing detection and the orthogonal phase locked loop. This research work discusses the use of PMUs (Phasor Measurement Unit) for providing this important parameter to system synchronization in the case of high penetration of solar energy in the power gridItem An application of phasor measurement unit to monitor a grid connected solar energy generation system(2020) Mahboubi, Meriem; Bentarzi, Hamid; Ouadi, AbderahmaneWhile renewable energies are gaining more interest among today’s power sources, solar panels are increasing their contribution to the power grid day by day due to the greatest potential they have. Identical to all other types of power generation plants, the integration of solar energy sources into the grid increases its complexity and poses challenges to maintain the system’s stability. In this paper, an adaptation of a phasor measurement unit (PMU) based solution is proposed for solar plants integration in regular power grids. PMUs can measure the stamped phasors of the utility, which are critical parameters for the operation of power devices feeding power into the grid. This paper discusses the use of PMUs for providing the phase angle to system synchronization in the case of high penetration of solar energy into the grid, where the instantaneous monitoring of the voltage, current and power flow is an important requirement.Item Contribution to The Reliability Study of Photovoltaic Systems Using Static and Dynamic Analysis Methods(Inderscience, 2019) Mahdi, Ismahan; Nadji, Bouchra; Simeu-Abazi, ZinebThe study of reliability has not been received great attention from researchers, an estimation of a lifetime and why not improve enhance is still possible. For that, it is necessary to distinguish the different failure modes, their causes and their effects on solar modules, in our case composed by Silicon, the most spread technology and the most used in the production of electricity. In this article, we will present a contribution to the reliability study of photovoltaic systems. First, the study will be focused on the static analysis of our system by using: structured analysis and design technique and function analysis system technique methods, which make it possible to carry out a functional analysis of our system. Next, our study will be based on the dynamic analysis by using: failure mode, effects, and criticality analysis, fault tree analysis and finally stochastic Petri nets methods. These allow making a dysfunctional analysis of the system by introducing the ‘time’ which is a very important factor in our studyItem Thermo-hydrodynamic behavior of an innovative solar chimney(Elsevier, 2020) Kebabsa, Hakim; Lounici, Mohand Said; Lebbi, Mohamed; Daimallah, AhmedProduction of electricity through solar systems is a viable alternative, especially for deserted regions where access to electricity is difficult. Solar chimney power plant (SCPP) is one of the promising concepts in renewable energy technology that needs performance enhancement. The objective of this research is to investigate a novel concept, which consists of a horizontal solar chimney power plant with an adapted collector entrance, named sloped collector entrance SCPP (SCESCPP). The effect of the collector entrance shape (slope, sloping distance) is investigated. For each sloping distance, eleven values for the slope are examined. Thus, a numerical investigation is carried out using a 2D axisymmetric chimney model. The model was first validated using experimental results. The influence on air thermo-hydrodynamic behavior of this system is comprehensively studied to enhance the understanding and deepen the analysis in order to improve the performance of the SCPP. The results indicate that the new collector entrance design influences the system performance in a significant manner. It is shown that the best performing configuration (sloping distance of 0.8 and slope of 9.1°) produces an available power reaching 16.36% more than that for zero slope collector roof at same conditions. Moreover, it is found that the optimal slope depends on sloping distance and remains almost the same for different Rayleigh numbersItem Numerical investigation of a novel tower solar chimney concept(elsevier, 2020) Kebabsa, Hakim; Lounici, Mohand Said; Daimallah, AhmedDivergent tower solar chimney power plant is an attractive upgrading of the solar chimney system. However, boundary layer separation (BLS) phenomenon can appear when the divergence angle exceeds a specific value, inducing system performance degradation. The present paper proposes a novel solar chimney tower concept, named annular tower solar chimney power plant (ATSCPP), to deal with BLS phenomenon and improve the divergent tower system. Accordingly, the influence of exterior tower radius (ETR) and interior tower radius (ITR) were evaluated, using the Spanish prototype. Simulations were carried out using a 3D model. The results indicate that flow behavior, power output and thermal efficiency shows a strong sensitivity to the change of both ETR and ITR. The best case is obtained when (ETR = 17 m, ITR = 13 m). The new solar chimney tower concept allowed a significant increase in the driving potential. The total improvement in power output reaches 32%. An improved concept which allows a compromise between induced cost and performance gain of the system is also proposed.Item Hybrid model for estimating monthly global solar radiation for the Southern of Algeria : (Case study : Tamanrasset, Algeria)(Elsevier, 2017) Achour, Lazhar; Bouharkat, Malek; Assas, Ouarda; Behar, OmarItem New model for estimating solar energy resources(2012) Behar, Omar; Khellaf, Abdallah; Mohammedi, KamalItem Numerical simulation of solar on grid plan in Tamanrasset(Praise Worthy Prize, 2015) Afif, Benameur; Allaoui, Tayeb; Chaker, Abdelkader; Benhamou, AminaItem Comparative study between solar and conventional heating-economic study and environmental impact(Elsevier, 2014) Sahnoune, Fatiha; Madani, M.; Zelmat, M.; Belhamel, M.