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Impact of Reverse Power Flow on Distributed Transformers in a Solar-Photovoltaic-Integrated Low-Voltage Network

Author

Listed:
  • Issah Babatunde Majeed

    (Electrical and Electronic Department, University of Johannesburg, Auckland Park 2006, South Africa)

  • Nnamdi I. Nwulu

    (Center for Cyber-Physical Food, Energy and Water Systems, University of Johannesburg, Auckland Park 2006, South Africa)

Abstract

Modern low-voltage distribution systems necessitate solar photovoltaic (PV) penetration. One of the primary concerns with this grid-connected PV system is overloading due to reverse power flow, which degrades the life of distribution transformers. This study investigates transformer overload issues due to reverse power flow in a low-voltage network with high PV penetration. A simulation model of a real urban electricity company in Ghana is investigated against various PV penetration levels by load flows with ETAP software. The impact of reverse power flow on the radial network transformer loadings is examined for high PV penetrations. Using the least squares method, simulation results are modelled in Excel software. Transformer backflow limitations are determined by correlating operating loads with PV penetration. At high PV penetration, the models predict reverse power flow into the transformer. Interpolations from the correlation models show transformer backflow operating limits of 78.04 kVA and 24.77% at the threshold of reverse power flow. These limits correspond to a maximum PV penetration limit of 88.30%. In low-voltage networks with high PV penetration; therefore, planners should consider transformer overload limits caused by reverse power flow, which degrades transformer life. This helps select control schemes near substation transformers to limit reverse power flow.

Suggested Citation

  • Issah Babatunde Majeed & Nnamdi I. Nwulu, 2022. "Impact of Reverse Power Flow on Distributed Transformers in a Solar-Photovoltaic-Integrated Low-Voltage Network," Energies, MDPI, vol. 15(23), pages 1-19, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:9238-:d:994855
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    References listed on IDEAS

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    1. Igor Cavalcante Torres & Gustavo F. Negreiros & Chigueru Tiba, 2019. "Theoretical and Experimental Study to Determine Voltage Violation, Reverse Electric Current and Losses in Prosumers Connected to Low-Voltage Power Grid," Energies, MDPI, vol. 12(23), pages 1-20, November.
    2. Manito, Alex R.A. & Pinto, Aimé & Zilles, Roberto, 2016. "Evaluation of utility transformers' lifespan with different levels of grid-connected photovoltaic systems penetration," Renewable Energy, Elsevier, vol. 96(PA), pages 700-714.
    3. Roman Korab & Marcin Połomski & Marcin Smołka, 2022. "Evaluating the Risk of Exceeding the Normal Operating Conditions of a Low-Voltage Distribution Network due to Photovoltaic Generation," Energies, MDPI, vol. 15(6), pages 1-35, March.
    4. Syahrul Nizam Md Saad & Adriaan Hendrik van der Weijde, 2019. "Evaluating the Potential of Hosting Capacity Enhancement Using Integrated Grid Planning modeling Methods," Energies, MDPI, vol. 12(19), pages 1-23, September.
    5. Hong Liu & Yinchang Guo & Shaoyun Ge & Mingxin Zhao, 2014. "Impact of DG Configuration on Maximum Use of Load Supply Capability in Distribution Power Systems," Journal of Applied Mathematics, Hindawi, vol. 2014, pages 1-9, May.
    6. Qais Alsafasfeh & Omar A. Saraereh & Imran Khan & Sunghwan Kim, 2019. "Solar PV Grid Power Flow Analysis," Sustainability, MDPI, vol. 11(6), pages 1-25, March.
    7. Sherif M. Ismael & Shady H. E. Abdel Aleem & Almoataz Y. Abdelaziz & Ahmed F. Zobaa, 2019. "Probabilistic Hosting Capacity Enhancement in Non-Sinusoidal Power Distribution Systems Using a Hybrid PSOGSA Optimization Algorithm," Energies, MDPI, vol. 12(6), pages 1-23, March.
    8. Novoa, Laura & Flores, Robert & Brouwer, Jack, 2019. "Optimal renewable generation and battery storage sizing and siting considering local transformer limits," Applied Energy, Elsevier, vol. 256(C).
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