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Choice of the Best Production Prediction Model for the Zagtouli Solar Power Plant in Burkina-Faso

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Engineering（科研） 2024年第9期16卷 237-245页

作者： Toussaint Tilado Guingane Eric Korsaga Mouhamadou Falilou Ndiaye Gaston Nabayaogo dominique bonkoungou Zacharie Koalaga Physics UFR/SEA Materials and Environment Laboratory (LAME) Pr. Joseph Ki ZERBO University Ouagadougou Burkina Faso Physics UFR/ST Science and Technology Laboratory (LaST) Thomas SANKARA University Ouagadougou Burkina Faso Centre International de Formation et de Recherche en Energie Solaire (C.I.F.R.E.S) ESP-UCAD: BP 5085 Dakar-Fann Senegal

In this paper, we present a study on the prediction of the power produced by the 33 MWp photovoltaic power plant at Zagtouli in Burkina-Faso, as a function of climatic factors. We identified models in the literature, namely the Benchmark, input/output, Marion, Cristo-fri, Kroposki, Jones-Underwood and Hatziargyriou prediction models, which depend exclusively on environmental parameters. We then compared our linear model with these seven mathematical models in order to determine the most optimal prediction model. Our results show that the Hatziargyriou model is better in terms of accuracy for power prediction.

关键词： Model Prediction Power Power Plant Photovoltaic Zagtouli Burkina-Faso

Estimating the Input Power of a Power Plant Using the Efficiency of the Inverter

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Smart Grid and Renewable Energy 2024年第3期15卷 99-106页

作者： Toussaint Tilado Guingane Sosthène Tassembedo Eric Korsaga dominique bonkoungou Zacharie Koalaga François Zougmore Physics UFR/SEA Materials and Environment Laboratory (LAME) Pr. Joseph Ki ZERBO University Ouagadougou Burkina Faso Physics UFR/ST Science and Technology Laboratory (LaST) Thomas SANKARA University Ouagadougou Burkina Faso

The study focuses on estimating the input power of a power plant from available data, using the theoretical inverter efficiency as the key parameter. The paper addresses the problem of missing data in power generation systems and proposes an approach based on the efficiency formula widely documented in the literature. In the absence of input data, this method makes it possible to estimate the plant’s input power using data extracted from the site, in particular that provided by the Ministry of the Environment. The importance of this study lies in the need to accurately determine the input power in order to assess the overall performance of the energy system.

关键词： Estimation Data Missing Input Power Efficiency Inverter

Study and Design of a DC/AC Energy Converter for PV System Connected to the Grid Using Harmonic Selected Eliminated (HSE) Approach

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Open Journal of Applied Sciences 2022年第3期12卷 301-316页

作者： dominique bonkoungou Éric Korsaga Toussaint Guingané Sosthène Tassembédo Zacharie Koalaga François Zougmoré Laboratory of Materials and Environment (LA.M.E) University of Joseph KI-Zerbo Ouagadougou Burkina Faso University of Thomas Sankara (UTS) Ouagadougou Burkina Faso

Nowadays, distributing network-connected photovoltaic (PV) systems are expanded by merging a PV system and a Direct Current (DC)/Alternating Current (AC) energy converter. DC/AC conversion of PV energy is in great demand for AC applications. The supply of electrical machines and transfer energy to the distribution network is a typical case. In this work, we study and design a DC/AC energy converter using harmonic selective eliminated (HSE) method. To this end, we have combined two power stages connected in derivation. Each power stage is constituted of transistors and transformers. The connection by switching of the two rectangular waves, delivered by each of the stages, makes it possible to create a quasi-sinusoidal output voltage of the inverter. Mathematical equations based on the current-voltage characteristics of the inverter have been developed. The simulation model was validated using experimental data from a 25.2 kWp grid-coupled (PV) system, connected to Gridfit type inverters. The data were exported and implemented in programming software. A good agreement was observed and this shows all the robustness and the technical performances of the energy converter device. It emerges from this analysis that the inverter output voltage and the phase angle thus simulated are very important to control in order to orientate the transfer of the power flow from the continuous cell to cell to the alternating part. Simulated and field-testing results also show that increases in the value of the modulation factor (m) for low power output are highly significant. This study is an important tool for DC/AC inverter designers during initial planning stages. A short presentation of the design model of the inverter has been proposed in this article.

关键词： Inverter Modulation Index Transistors Power Stage Harmonic Selective Eliminated Photovoltaic (PV) System

Evaluation of the Performance of Lithium-Ion Accumulators for Photovoltaic Energy Storage

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Energy and Power Engineering 2023年第12期15卷 517-526页

作者： Toussaint Tilado Guingane dominique bonkoungou Eric Korsaga Dieudonné Simpore Soumaila Ouedraogo Zacharie Koalaga François Zougmore Laboratoire des Matériaux et Environnement (LA.M.E.) Unité de Formation et de Recherche en Sciences Exactes et Appliquée (UFR/SEA) Université Joseph KI-ZERBO Ouagadougou Burkina Faso Laboratoire de Sciences et Technologies (LaST) Unité de Formation et de Recherche en Sciences et Techniques (UFR/ST) Université Thomas SANKARA Ouagadougou Burkina Faso

In a context of climate change exacerbated by the increasing scarcity of fossil fuels, renewable energies, in particular photovoltaic solar energy, offer a promising alternative. Solar energy is non-polluting, globally available and the most widely distributed resource on Earth. However, the intermittency of this energy source considerably limits its expansion. To solve this problem, storage techniques are being used, in particular, electrochemical storage using lithium-ion batteries. In this article, we will evaluate the performance of lithium-ion batteries when integrated into a photovoltaic grid. To do this, modelling and simulation of a photovoltaic system connected to a lithium-ion battery storage system will be carried out using MATLAB/Simulink software. A diagnostic of the energy consumption of the Kaya Polytechnic University Centre will be carried out, and the data will then be used in the simulator to observe the behaviour of the PV-Lion system. The results obtained indicate that lithium-ion batteries can effectively meet the centre’s energy demand. In addition, it was observed that lithium-ion batteries perform better under high energy demand than the other battery technologies studied. Successive storage systems with the same capacity but different battery technologies were compared. It was found that these storage systems can handle a maximum power of 4 × 105 W for lead-acid batteries, 6.5 × 105 W for nickel-cadmium batteries, 8.5 × 105 W for nickel-metal-hydride batteries, and more than 10 × 105 W for lithium-ion technology.

关键词： Photovoltaic Energy Energy Storage Lithium-Ion Accumulator Modeling MATLAB/Simulink Simulation

Reevaluating health metrics:Unraveling the limitations of disabilityadjusted life years as an indicator in disease burden assessment

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World Journal of Methodology 2025年第1期15卷 14-19页

作者： Ariel Beresniak dominique Bremond-Gignac Danielle Dupont Gerard Duru Data Mining International Geneva 1216Switzerland Department of Ophtalmology Necker-Enfants Malades University HospitalAP-HPParis-CitéUniversityINSERMUMRS1138Team 17From Physiopathology of Ocular Diseases to Clinical DevelopmentSorbonne Paris CitéUniversityCentre de Recherche des CordeliersParis 75015France Data Mining America Montreal H2YCanada

In 1993,the World Bank released a global report on the efficacy of health promotion,introducing the disability-adjusted life years(DALY)as a novel *** DALY,a composite metric incorporating temporal and qualitative data,is grounded in preferences regarding disability *** review delineates the algorithm used to calculate the value of the proposed DALY synthetic indicator and elucidates key methodological challenges associated with its *** contrast to the quality-adjusted life years approach,derived from multi-attribute utility theory,the DALY stands as an independent synthetic indicator that adopts the assumptions of the Time Trade Off utility technique to define Disability *** to rely on no mathematical or economic theory,DALY users appear to have exempted themselves from verifying whether this indicator meets the classical properties required of all indicators,notably content validity,reliability,specificity,and *** DALY concept emerged primarily to facilitate comparisons of the health impacts of various diseases globally within the framework of the Global Burden of Disease initiative,leading to numerous publications in international *** widespread adoption,the DALY synthetic indicator has prompted significant methodological concerns since its inception,manifesting in inconsistent and non-reproducible *** the substantial diffusion of the DALY indicator and its critical role in health impact assessments,a reassessment is *** reconsideration is imperative for enhancing the robustness and reliability of public health decisionmaking processes.

关键词： Disability adjusted life years Cost-utility analyses Outcome research Public health Burden of disease

Needs of thermodynamic properties measurements and modeling in the frame of new regulations on refrigerants

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第5期8卷 724-733页

作者： COQUELET Christophe RICHON dominique School of Mines of Paris CEP/TEPCNRS FRE 286135rue Saint HonoréFontainebleau 77305France

In 1987, the Montreal Protocol prohibited the worldwide use and production of chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) and hydro fluorocarbons (HFCs) were proposed as alternative refrigerants. Unfortunately, HFCs have non negligible global warning potential and therefore new refrigerants must be proposed or old refrigerants must be used associated with HFC. Accurate experimental thermodynamic data and predictive techniques are required for better under-standing of the performance of the newly proposed refrigerants. In this communication, experimental techniques based on either analytic or synthetic methods are first described. Data are reported. Then two newly developed predictive models based on thermodynamic approach with the isofugacity criterion and artificial neural network method are presented. The results can provide better evaluation of refrigerants, especially with the aim of studying global warning effects.

关键词： Refrigerants Experimental apparatus Thermodynamic Modeling Vapor-liquid equilibria (VLE) Phase diagram Density

Recurrence properties of sequences of integers

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Science China Mathematics 2010年第3期53卷 641-656页

作者： SCHNEIDER dominique CNRS LMPA J. Liouville FR 2956 University Lille Nord de France

In order to study the recurrence of sequences of integers, we investigate their L2-exactness and Θ-Hartman property (Θ being a set of rational numbers). Two classes of sequences of integers are well studied, which a... 详细信息

关键词： recurrent set random sequence Wiener-Wintner theorem

BioMinE:An integrated project for developing biohydrometallurgy in Europe——Executive summary of its activities and outputs after three years

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中国有色金属学会会刊：英文版 2008年第6期18卷 1328-1335页

作者： dominique H.R.MORIN BRGM-EPI/Eco 3Avenue C.Guillemin-BP 600945060 Orléans Cedex 2France

Biohydrometallurgy 是生物工学和冶金学的意外联合的后代。从某极端 biotopes 的特定的性质，在微生物引起的新陈代谢和矿物质之间的相互作用的活跃原则被提取了被用作有效冶金过程。许多有利工业操作基于这些 bioprocesses 一直在跑... 详细信息

Biohydrometallurgy 是生物工学和冶金学的意外联合的后代。从某极端 biotopes 的特定的性质，在微生物引起的新陈代谢和矿物质之间的相互作用的活跃原则被提取了被用作有效冶金过程。许多有利工业操作基于这些 bioprocesses 一直在跑例如恢复铜，黄金，铀或钴，许多另外的应用程序被设计了。欧洲在这个区域在是相当活跃的过去，但是当前领导在南非，美洲和澳大利亚。BioMinE (在欧洲的忍受金属的材料的生物工学) 是与欧洲 Commision 的支持发射的一个大综合工程。它针对刺激在在这个技术领域里开发新概念的最相关的大学，研究和工业组织之间的协同作用以后允许矿物质资源的更好的利用。当他们识别了需要从今天并且明天的资源为金属抽取发现新过程，欧洲非铁的金属采矿工业开始了并且发展 BioMinE 工程。

关键词：生物显微冶金术生物技术欧洲活性

State-of-the-Art in Electrophilic Trifluoromethylthiolation Reagents

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Chinese Journal of Chemistry 2016年第5期34卷 445-454页

作者： Helene Chachignon dominique Cahard Normandie UniversitY CNRS UMR 6014 COBRA et FR 3038 Universite de Rouen INSA Rouen. 1 rue Tesniere 76821 Mont Saint-Aignan Cedex France

The trifluoromethylthio group （SCF3） is a fluorine chemotype that has experienced a strong acceleration of in- terest in the recent years. It is particularly true of the construction of new fluorinated architectures by electrophilic trifluoromethylthiolation. The spread of knowledge was already very active in this research domain in the sixties; however, gaseous and highly toxic trifluoromethanesulfenyl chloride （CF3SC1） was the only reagent available at that time. Nowadays, one really can speak of a revival in the field thanks to the rapid development of a wide pano- ply of reagents that are stable and easy to handle. This review provides a historical perspective of the development of shelf-stable electrophilic trifluoromethylthiolation reagents.

关键词： fluorine sulfur electrophilic addition synthetic methods