Performance Analysis and Energy Conservation of PV Based Hybrid Power System
DOI:
https://doi.org/10.13052/dgaej2156-3306.3814Keywords:
PV-based hybrid power system, power factor, maximum demand, transformer loading and life, current harmonicsAbstract
The increase in energy consumption due to population expansion and scarcity of fossil fuels is happening simultaneously in developing countries like India. In this regard, commercial buildings are increasingly required to employ renewable energy sources (like PV) and conserve the energy for improving energy efficiency. This research article examines the performance of such PV-based hybrid power system, consists of 11 kV grid supply, 100 kWp PV plant & 200 kVA diesel generator. The results indicate that the addition of 68.34 kVAr shunt capacitor bank to Automatic Power Factor Compensation (APFC) panel, keeps the Power Factor (PF) unity and also eliminates the PF penalties in electricity bills. The maximum demand (MD) saving Rs 54528.00 (INR) on annual basis is achieved after the integration of PV with low voltage (433 V) distribution system and grid supply (11 kV). This integration has also reduced the average transformer loading to 64.73% and improved the transformer life. However the development of high current harmonics (average value 47.10%) must be reduced to ensure the life of the electrical load.
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A.P. Singh, A. Singhal, A. Athaya, S.K. Rajput, L. Srivastava, and V. Sharma. Energy Audit of Hybrid (Grid, Solar Rooftop Photovoltaic System and Diesel Generator) Electric Power Supply System: A Case Study of Commercial Building. In: Gupta O.H. and Sood V.K. (eds), Recent Advances in Power Systems. Lecture Notes in Electrical Engineering, 699. Springer, Singapore, 2021.
C. Palanichamy, C. Nadarajan, P. Naveen, N.S. Babu, and D. Lakshmi. Budget Constrained Energy Conservation-An Experience with a Textile Industry. IEEE Power Engineering Review, 21(10): 58–58, 2001.
C. Palanichamy and N.S. Babu. Second stage energy conservation experience with a textile industry. Energy Policy, 33(5): 603–609, 2005.
R. Jananthant, S. Ameer, and R. Shiyamini. Comparative study of energy assessment from apparel industries: the context of Sri Lanka. First international conference on industrial and information systems, Sri Lanka, August 2006.
S. U. Kulkarni and Kalpana Patil. Energy Audit of an Industrial Unit- A Case Study. International Journal of Emerging Science and Engineering, 2(1), 2013.
E. Hewitt and Y. Wang. Understanding the Drivers of National-Level Energy Audit Behavior: Demographics and Socioeconomic Characteristics. Sustainability, 12(5):2059, 2020.
A. Kumar, S. Ranjan, M.B.K. Singh, P. Kumari, and L. Ramesh. Electrical Energy Audit in Residential House. Procedia Technology, 21: 625–630, 2015.
P. Thollander, S. Paramonova, E. Cornelis, O. Kimura, A. Trianni, M. Karlsson, E. Cagno, I. Morales, and J.P.J. Navarro. International study on energy end-use data among industrial SMEs (small and medium-sized enterprises) and energy end-use efficiency improvement opportunities. Journal of Cleaner Production, 104: 282–296, 2015.
A. Kluczek and P. Olszewski. Energy audits in industrial processes. Journal of Cleaner Production, 142(4): 3437–3453, 2017.
T. Hussain and A. Wahab. A critical review of the current water conservation practices in textile wet processing. Journal of Cleaner Production, 198: 806–819, 2018.
S. M. Agah and H. A. Abyaneh. Distribution Transformer Loss-of-Life Reduction by Increasing Penetration of Distributed Generation. IEEE Transactions on Power Delivery, 26 (2): 1128–1136, 2011.
E. Chiodo, D. Lauria, F. Mottola, and C. Pisani. Lifetime characterization via lognormal distribution of transformers in smart grids: Design optimization. Applied Energy, 177: 127–135, 2016.
S.K. Rajput and D.K. Dheer. Mathematical modelling and experimental validation for impact of high solar cell temperature on transformer loading and life. Renewable Energy Focus, 39: 27–36, 2021.
O. Gandhi, D.S. Kumar, C.D. Rodríguez-Gallegos, and D. Srinivasan. Review of power system impacts at high PV penetration Part I: Factors limiting PV penetration. Solar Energy, 210: 181–201, 2020.
S. P. Bihari, P. K. Sadhu. A novel function roach and intelligence control technique for power quality improvement in grid incorporated solar photovoltaic system. International Journal of Green Energy, 0(0): 1–21, 2021.
A. Elkholy. Harmonics assessment and mathematical modeling of power quality parameters for low voltage grid connected photovoltaic systems. Solar Energy, 183: 315–326, 2019.
J. Yaghoobi, A. Alduraibi, D. Martin, F. Zare, D. Eghbal, R. Memisevic. Impact of highfrequency harmonics (0–9 khz) generated by grid-connected inverters on distribution transformers. International Journal of Electrical Power Energy Systems, 122: 106177, 2020.
A. Kumari, J. Patra, N. Pal, and N. Kumar. Impact of Solar Panel on the Transformer Performance: A Case Study. Iran. J. Sci. Technol. Trans. Electr. Eng., 44(3): 1197–1206, 2020.
W.N. Macêdo and R. Zilles. Influence of the power contribution of a grid-connected photovoltaic system and its operational particularities. Energy for Sustainable Development, 13(3): 202–211, 2009.
C.Y. Lau, C.K. Gan, Z. Salam, and M. F. Sulaima. Impact of Solar Photovoltaic System on Transformer Tap Changer in Low Voltage Distribution Networks. Energy Procedia, 103: 58–63, 2016.
H. Hondo. Life cycle ghg emission analysis of power generation systems: Japanese case. Energy, 30(11): 2042–2056, 2005.
S. K. Yadav, U. Bajpai. Energy, economic and environmental performance of a solar rooftop photovoltaic system in india. International Journal of Sustainable Energy, 39(1): 51–66, 2020.
Energy efficiency in electrical utilities. Guide book 3 for National Certification Examination for Energy Managers and Auditors, bureau of energy efficiency, India, 2005.
