Experimental analysis of a solar PV/diesel hybrid system without storage: Focus on its dynamic behavior |
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| Affiliation: | 1. LESEE-2iE, Laboratoire Energie Solaire et Economie d’Energie, Institut International d’Ingénierie de l’Eau et de l’Environnement, 01 BP 594 Ouagadougou 01, Burkina Faso;2. PROMES-CNRS UPR 8521, Laboratoire Procédés Matériaux et Energie Solaire, Université de Perpignan, Rambla de la Thermodynamique, Tecnosud, 66100 Perpignan cedex, France;1. Centre for Energy Technology, Schools of Chemical Engineering, The University of Adelaide, South Australia, 5005, Australia;2. Mechanical Engineering, The University of Adelaide, South Australia, 5005, Australia;1. AGH University, Kraków, Poland;2. Wroc?aw University of Environmental and Life Sciences, Wroc?aw, Poland;3. Wroc?aw University of Science and Technology, Wroc?aw, Poland;4. Frankfurt Institute for Advanced Studies, Goethe University Frankfurt, Frankfurt, Germany;5. Institute of Meteorology and Water Management - National Research Institute, Warszawa, Poland;1. Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. UM Power Energy Dedicated Advanced Centre (UMPEDAC), Level 4, Wisma R&D UM, University of Malaya, 59990 Kuala Lumpur, Malaysia;3. Centre of Research Excellence in Renewable Energy (CoRE-RE), King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia;1. Center for Transdisciplinary Research, Niigata University, 8050 Ikarashi 2-nocho, Nishi-ku, Niigata 950-2181, Japan;2. Pacific Rim Solar Fuels Research Center, Niigata University, 8050 Ikarashi 2-nocho, Niigata 950-2181, Japan;3. Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-nocho, Niigata 950-2181, Japan |
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| Abstract: | Integration of solar photovoltaic systems with diesel generators for the electrification of remote and rural areas would assist in expanding the electricity access in the sub-Saharan Africa region. In fact, countries of this region are well endowed in solar resource: their mean daily solar radiation exceeds 5.5 kWh/m2/day. They are, therefore, good locations for PV systems. This paper deals with an experimental study of the dynamic behavior of a hybrid system prototype (based on “flexy-energy” concept) set up at Kamboinsé, located at 15 km far from Ouagadougou (12, 22° N and 1, 31° W) in Burkina Faso. The prototype is composed of a 2.85 kWp PV array, a 3.3 kW single phase inverter and a diesel generator rated at 9.2 kW. Two resistive load banks of about 4 kW each are used to simulate the load profiles. Experimental results show that the PV generation leads the distribution feeder to shift toward higher voltages. The voltage rise is exacerbated when the PV generation is at its highest and the demand at its lowest. Care should then be taken to ensure that for a hybrid PV/diesel system, the PV rated power connected to each phase of the diesel generator is as equal as possible. The present study also points out that “well designed” inverters generate very small voltage harmonics and current distortions, even when high PV penetration systems are considered. |
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