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Robust Control for Optimized Islanded and Grid-Connected Operation of Solar/Wind/Battery Hybrid Energy

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  • Muhammad Maaruf

    (Systems Engineering Department, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia
    K.A. CARE Energy Research & Innovation Center, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia)

  • Khalid Khan

    (Electrical Engineering Department, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia)

  • Muhammad Khalid

    (K.A. CARE Energy Research & Innovation Center, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia
    Electrical Engineering Department, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia
    Center for Renewable Energy and Power Systems, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia)

Abstract

Wind and solar energy systems are among the most promising renewable energy technologies for electric power generations. Hybrid renewable energy systems (HRES) enable the incorporation of more than one renewable technology, allowing increased reliability and efficiency. Nevertheless, the introduction of variable generation sources in concurrence with the existing system load demand necessitates maintaining the power balance between the components of the HRES. Additionally, the efficiency of the hybrid power supply system is drastically affected by the number of converters interfacing its components. Therefore, to improve the performance of the HRES, this paper proposes a robust sliding mode control strategy for both standalone and grid-connected operation. The control strategy achieves maximum power point tracking for both the renewable energy sources and stabilizes the DC-bus and load voltages irrespective of the disturbances, change in load demand, variations of irradiance level, temperature, and wind speed ensuring an efficient energy management. Furthermore, the solar PV system is directly linked to the DC-bus obviating the need for redundant interfacing boost converters with decreased costs and reduced system losses. Lyapunov candidate function is used to prove the asymptotic stability and the convergence of the entire system. The robustness of the proposed control strategy is tested and validated under various conditions of HRES, demonstrating its efficacy and performance under various conditions of the HRES.

Suggested Citation

  • Muhammad Maaruf & Khalid Khan & Muhammad Khalid, 2022. "Robust Control for Optimized Islanded and Grid-Connected Operation of Solar/Wind/Battery Hybrid Energy," Sustainability, MDPI, vol. 14(9), pages 1-29, May.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:9:p:5673-:d:810860
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    References listed on IDEAS

    as
    1. Muhammad Asghar Majeed & Furqan Asghar & Muhammad Imtiaz Hussain & Waseem Amjad & Anjum Munir & Hammad Armghan & Jun-Tae Kim, 2022. "Adaptive Dynamic Control Based Optimization of Renewable Energy Resources for Grid-Tied Microgrids," Sustainability, MDPI, vol. 14(3), pages 1-14, February.
    2. Muhammad Maaruf & Md Shafiullah & Ali T. Al-Awami & Fahad S. Al-Ismail, 2021. "Adaptive Nonsingular Fast Terminal Sliding Mode Control for Maximum Power Point Tracking of a WECS-PMSG," Sustainability, MDPI, vol. 13(23), pages 1-19, December.
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