Simple diagnostic approach for determining of faulted PV modules in string based PV arrays |
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| Authors: | Nuri Gokmen Engin Karatepe Berk Celik Santiago Silvestre |
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| Affiliation: | 1. Department of Electrical and Electronics Engineering, Ege University, 35100 Bornova, Izmir, Turkey;2. Electronic Engineering Department, Universitat Politècnica de Catalunya, C/Jordi Girona 1-3, Campus Nord UPC, 08034 Barcelona, Spain;1. Renewable Energy Laboratory, Faculty of Sciences and Technology, Department of Electronics, University of Jijel, Ouled-Aissa, P.O. Box .98, Jijel, 18000, Algeria;2. The Abdus Salam International Centre for Theoretical Physics (ICTP), Strada Costiera, 11, 34151, Trieste, Italy;3. Department of Engineering and Architecture, University of Trieste, Via A. Valerio, 6/A, 34127 Trieste, Italy;4. Centre de Développement des Energies Renouvelables BP. 62 Route de l''Observatoire, Bouzareah 16340 Alger, Algeria;1. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;2. School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China;3. School of Electrical and Electronic Engineering, Newcastle University, England, United Kingdom;1. MNT Group, Electronic Engineering Department, UPC-BarcelonaTech, Barcelona, C/ Jordi Girona 1-3, Mòdul C4 Campus Nord UPC, 08034 Barcelona, Spain;2. Dpto. Lenguajes y Ciencias de la Computación, Universidad de Málaga, Campus de Teatinos, sn, Málaga 29071, Spain;3. Dpto. Tecnología Eléctrica, Universidad de Málaga, Campus de Teatinos, sn, Málaga 29071, Spain;1. MNT Group, Electronic Engineering Department, Universitat Politècnica de Catalunya (UPC) BarcelonaTech, C/Jordi Girona 1-3, Campus Nord UPC, 08034 Barcelona, Spain;2. Photovoltaic Laboratory, Development Centre of Renewable Energies, BP 62 Route de l’Observatoire, 16340 Bouzareh, Algiers, Algeria;3. Department of Electrical and Electronics Engineering, Ege University, 35100 Bornova, Izmir, Turkey |
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| Abstract: | This paper proposes a simple diagnostic method to determine the number of open and short circuited PV modules in a string of a PV system by taking into account the economical factor, such as minimum number of sensors. The diagnostic algorithm has as inputs the irradiance level, the PV modules temperature, the number of PV modules present in the string analyzed and its output power. So, just temperature and irradiance sensors, as well as a power meter by string are needed in the monitoring system forming part of the fault diagnostic system. The proposed fault detection method has been successfully validated experimentally. |
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