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Impact of Multi-Year Analysis on the Optimal Sizing and Control Strategy of Hybrid Energy Systems

Author

Listed:
  • Ameer Al-Khaykan

    (Intelligent Medical Systems Department, Al-Mustaqbal University College, Hillah 51001, Babil, Iraq)

  • Ibrahim H. Al-Kharsan

    (Computer Technical Engineering Department, College of Technical Engineering, The Islamic University, Najaf 54001, Iraq
    Electrical Engineering Department, College of Engineering, University of Kufa, Kufa 54001, Iraq)

  • Mohammed Omar Ali

    (Department of Electrical Power Techniques Engineering, Al-Hussain University College, Karbala 56001, Iraq)

  • Ali Jawad Alrubaie

    (Medical Instrumentation Techniques Engineering Department, Al-Mustaqbal University College, Hillah 51001, Babil, Iraq)

  • Hassan Falah Fakhruldeen

    (Electrical Engineering Department, College of Engineering, University of Kufa, Kufa 54001, Iraq
    Computer Techniques Engineering Department, Faculty of Information Technology, Imam Ja’afar Al-Sadiq University, Baghdad 10011, Iraq)

  • J. M. Counsell

    (Head of Electronics and Electrical Engineering Department, University of Chester, Parkgate Rd., Chester CH1 4BJ, UK)

Abstract

Grid-connected hybrid energy systems (HESs) represent a very promising option for addressing the problem of power outages worldwide. The selection of a suitable optimization approach and operational strategy are important aspects of the optimal design and operation of these HESs. This study aimed to find the optimal grid-connected PV/battery system sizes to supply electricity for a residential house in Karbala, Iraq, using two control strategies, load following (LF) and cycle charging (CC). The optimization was performed using HOMER software with and without the multi-year effects. The comparison analysis was carried out by considering the techno-economic and environmental performance of the feasible systems. The simulation results indicate that optimal configuration is achieved by using the CC strategy. Furthermore, the multi-year module affects the optimal results dramatically. Under the CC strategy, the multi-year effects increase the required PV size from 6 kW to 7 kW and the required number of batteries from 18 to 20, leading to an increase in the net present cost from $26,750 to $33,102 and a decrease in CO 2 emissions from 7581 kg/year to 7379 kg/year. The results also show that the optimization results are highly affected by the variations of some critical parameters, such as solar radiation, average load, and battery degradation limits. The achievements indicate the higher effectiveness of the multi-year effects and control strategy on the optimal design of HESs.

Suggested Citation

  • Ameer Al-Khaykan & Ibrahim H. Al-Kharsan & Mohammed Omar Ali & Ali Jawad Alrubaie & Hassan Falah Fakhruldeen & J. M. Counsell, 2022. "Impact of Multi-Year Analysis on the Optimal Sizing and Control Strategy of Hybrid Energy Systems," Energies, MDPI, vol. 16(1), pages 1-17, December.
    • Handle: RePEc:gam:jeners:v:16:y:2022:i:1:p:110-:d:1011231
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    References listed on IDEAS

    as
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    3. Fares, Dalila & Fathi, Mohamed & Mekhilef, Saad, 2022. "Performance evaluation of metaheuristic techniques for optimal sizing of a stand-alone hybrid PV/wind/battery system," Applied Energy, Elsevier, vol. 305(C).
    4. Vinoth John Prakash & Pradyumna Kumar Dhal, 2021. "Techno-Economic Assessment of a Standalone Hybrid System Using Various Solar Tracking Systems for Kalpeni Island, India," Energies, MDPI, vol. 14(24), pages 1-32, December.
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