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Integrated Nanogrid for the Impressed Current Cathodic Protection System in Desalination Plant

Author

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  • R. Ramanavasu

    (Department of Electrical and Electronics Engineering, SRM Institute of Science & Technology, Kattankulathur 603203, India)

  • K. Vijayakumar

    (Department of Electrical and Electronics Engineering, SRM Institute of Science & Technology, Kattankulathur 603203, India)

  • S. George Fernandez

    (Department of Electrical and Electronics Engineering, SRM Institute of Science & Technology, Kattankulathur 603203, India)

Abstract

The impressed current cathodic protection (ICCP) scheme is a more reliable and efficient method of corrosion prevention mechanism than the sacrificial method. Currently, the grid connected transformer rectifier units supported with a battery banks are used for the ICCP-based corrosion protection system in the desalination plant. This conventional method is entirely grid-dependent, more expensive, and suffers during prolonged grid failure. The present trend of industrialization is the application of multi-renewable energy sources based on a nanogrid to power the station’s auxiliary power supply. This paper introduces a concept of distributed energy resources (DERs) operated integrated nanogrid (ING) system to provide a stable power supply solution to the ICCP scheme. A 100-million-litter per day capacity-based seawater desalination plant (SWDP) in India has been chosen as the test station. The conceptual hardware design and operational logic details for smooth integration of the integrated nanogrid module into the ICCP scheme of the Desalination plant is proposed. This research aims to investigate the behaviour of DERs during on-grid, off-grid and switching over from one mode of operation to another and vice-versa by using the accelerated Gauss–Seidel method in ETAP software (version 16.0.0). The simulation results confirm that the ING suffers from a high-frequency change rate during islanded operation, and in some cases, a complete blackout occurs. A PLC-based Smart Versatile ING Controller has been suggested to overcome the blackout issue. Finally, it has been proven that the stability of an industrial power system can be improved further by introducing the ING module into it.

Suggested Citation

  • R. Ramanavasu & K. Vijayakumar & S. George Fernandez, 2023. "Integrated Nanogrid for the Impressed Current Cathodic Protection System in Desalination Plant," Sustainability, MDPI, vol. 15(9), pages 1-22, April.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:9:p:7088-:d:1131021
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    References listed on IDEAS

    as
    1. Tiba, C. & de Oliveira, E.M., 2012. "Utilization of cathodic protection for transmission towers through photovoltaic generation," Renewable Energy, Elsevier, vol. 40(1), pages 150-156.
    2. Lilly, M.T. & Ihekwoaba, S.C. & Ogaji, S.O.T. & Probert, S.D., 2007. "Prolonging the lives of buried crude-oil and natural-gas pipelines by cathodic protection," Applied Energy, Elsevier, vol. 84(9), pages 958-970, September.
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