POWER QUALITY AND ENEGY EFFIENCY STUDY OF A 8 MW PHOTOVOLTAIC POWER PLANT
DOI:
https://doi.org/10.36801/Abstract
The paper illustrates a power quality and energy efficiency study over a large-scale grid-connected photovoltaic power system. Different examinations are performed on the main power equipment included in the solar plant (power transformers, inverters, and medium voltage cables) are performed. Thus, the power losses and equipment efficiency are computed for different solar power plant functioning states. The measurements data (voltage and current power quality parameters) were acquired at the transformers' low-voltage and were monitored over a large time interval, relevant for analyzing the photovoltaic power system behavior. Therefore, they were valorized by identifying different opportunities to increase the energy efficiency and to also find the main power quality issues generators. The paper also addresses the significant reactive power circulation problem, especially during the night periods, when the photovoltaic power system has a special operating state. Consequently, different solutions were proposed. They were also critically examined in terms of both their technical and economic aspects.
References
(1) S. Ould Amrouche, S. Bouchakour, A. Hadj Arab, K. Abdeladim, F. Cherfa, K. Kerkouche, “Reactive power issues in grid-connected photovoltaic systems, Int. Conference on Nuclear and Renewable Energy Resources, Antalya, Turkey, 26-29 Oct. 2014, pp.1-6
(2) A. F. Kadir, H. Mupangat, D. Mat Said and Z. Rasin, “Reactive power analysis at solar power plant” Jurnal Teknologi, vol. 83, no. 2, pp. 47-55, 2021.
(3) B. P. Singh, S. K. Goyal1, S. A. Siddiqu, “Grid Connected-Photovoltaic System (GC-PVS): Issues and Challenges” IOP Conf. Series: Materials Science and Engineering 594 (2019) 012032, IOP Publishing.
(4) L. Jin, X. Gong, Q. Sun, M.o Sha, “Reactive Power Control of Grid-Connected Photovoltaic Power Generation” Journal of Physics: Conference Series 1754 (2021) 012001, IOP Publishing.
(5) A. Dhaneria, "Grid-Connected PV System with Reactive Power Compensation for the Grid," 2020 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT), 2020, pp. 1-5.
(6) G. M. Tina< G. Celsa, "Active and reactive power regulation in grid-connected PV systems," 2015 50th International Universities Power Engineering Conference (UPEC), 2015, pp. 1-6.
(7) P. González, E. Romero, V. M. Miñambres, M. A. Guerrero, E. González, "Grid-connected PV plants. Power quality and technical requirements," 2014 Electric Power Quality and Supply Reliability Conference (PQ), 2014, pp. 169-176, doi: 10.1109/PQ.2014.6866804.
(8) D. Ibram, V. Gueorgiev, "Control of Reactive Power of a Single-Phase Photovoltaic Inverter," 2020 12th Electrical Engineering Faculty Conference (BulEF), 2020, pp. 1-4.
(9) Electrical characteristics of Polycrystalline Silicon Solar panel ET Solar Group ET-P660240 (240W).
(10) Technical specifications PVI 55 TL an PVI 55.0.TL Inverters - Power ONE - Italy (actual factory is Fimer Italy);
(11) Technical specification of Three-Phase Oil Transformer acc. DIN EN 60076-1 for Rectifier Operation 1600 kVA/ 20/0.32 kV, type: RCU 4234, Schneider Electric
(12) Medium voltage cable catalog ICME ECAB SA Romania, cable type 12/20kV.
(13) *** Fluke 435 - IEC Class A - Three-Phase Power Quality Analyzer - User Manual, Fluke Corporation, 2010.
(14) *** C.A 8335 Qualistar Plus - Three-phase electrical networks analyzer - Operating manual, Chauvin Arnoux Corporation, 2008.
(15) C. Sankaran, Power Quality, New York: CRC Press, 2002.
(16) M. A. S. Masoum, E. Fuchs, Power Quality in Power Systems and Electrical Machines, 2nd Ed. Elsevier Academic Press, 2015.
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