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Composite Demand-Based Energy Storage Sizing for an Isolated Microgrid System

Author

Listed:
  • Abdullah Alamri

    (Department of Electrical Engineering, Faculty of Engineering, Islamic University of Madinah, Madinah 42351, Saudi Arabia)

  • Abdulrahman AlKassem

    (Department of Electrical Engineering, Faculty of Engineering, Islamic University of Madinah, Madinah 42351, Saudi Arabia)

  • Azeddine Draou

    (Department of Electrical Engineering, Faculty of Engineering, Islamic University of Madinah, Madinah 42351, Saudi Arabia)

Abstract

This paper presents a comprehensive model for optimal energy storage system (ESS) design for an isolated microgrid. The model presented is a mixed integer linear program (MILP) that considers seasonal varying generation (VG) demand, more specifically seasonal solar cell generator (SCG) demand, SCG maintenance (failure and restoration) rates, and practical operation of conventional generation (CG) while satisfying the required demand and reserve. The model is based on unit commitment (UC) to simulate real operations and physical constraints of CG units, the power balance, and reserve requirements. The objective function aims at minimizing the associated cost of CG, namely, production (fuel), costs of startup and shutdown procedures, and the investment cost of power and energy. The proposed model is assessed on a case study system consisting of multiple SCGs in addition to CG to meet a specific demand. The proposed model showed that the ESS sizing when considering Li-Ion technology and a SCG penetration of 25% was on average approximately 3 MWh and 1.70 MW. Meeting the demand and reserve requirements were the two major constraints when determining the optimal ESS sizing. Moreover, introducing the ESS substantially reduced the operating cost of the system.

Suggested Citation

  • Abdullah Alamri & Abdulrahman AlKassem & Azeddine Draou, 2023. "Composite Demand-Based Energy Storage Sizing for an Isolated Microgrid System," Sustainability, MDPI, vol. 15(2), pages 1-14, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:2:p:1517-:d:1034068
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    References listed on IDEAS

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    1. Wilmer Ropero-Castaño & Nicolás Muñoz-Galeano & Eduardo F. Caicedo-Bravo & Pablo Maya-Duque & Jesús M. López-Lezama, 2022. "Sizing Assessment of Islanded Microgrids Considering Total Investment Cost and Tax Benefits in Colombia," Energies, MDPI, vol. 15(14), pages 1-24, July.
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