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A Robust Fractional-Order Control Scheme for PV-Penetrated Grid-Connected Microgrid

Author

Listed:
  • Nikhil Pachauri

    (Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India)

  • Vigneysh Thangavel

    (School of Electrical and Electronics Engineering, SASTRA Deemed to Be University, Thanjavur 613401, India)

  • Velamuri Suresh

    (Symbiosis Institute of Technology, Symbiosis International (Deemed University), Pune 412115, India)

  • Mvv Prasad Kantipudi

    (Symbiosis Institute of Technology, Symbiosis International (Deemed University), Pune 412115, India)

  • Hossam Kotb

    (Department of Electrical Power and Machines, Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt)

  • Ravi Nath Tripathi

    (Nagamori Actuator Research Center, Kyoto University of Advanced Science, Kyoto 6158577, Japan)

  • Mohit Bajaj

    (Department of Electrical Engineering, Graphic Era (Deemed to Be University), Dehradun 248002, India
    Applied Science Research Center, Applied Science Private University, Amman 11931, Jordan)

Abstract

This article presents a new cascaded control strategy to control the power flow in a renewable-energy-based microgrid operating in grid-connected mode. The microgrid model is composed of an AC utility grid interfaced with a multi-functional grid interactive converter (MF-GIC) acting as a grid-forming converter, a photovoltaic (PV) power-generation system acting as grid-feeding distributed generation unit, and various sensitive/non-sensitive customer loads. The proposed control strategy consists of a fractional order PI (FO-PI) controller to smoothly regulate the power flow between the utility grid, distributed generation unit, and the customers. The proposed controller exploits the advantages of FO (Fractional Order) calculus in improving the steady-state and dynamic performance of the renewable-energy-based microgrid under various operating conditions and during system uncertainties. To tune the control parameters of the proposed controller, a recently developed evaporation-rate-based water-cycle algorithm (ERWCA) is utilized. The performance of the proposed control strategy is tested under various operating conditions to show its efficacy over the conventional controller. The result shows that the proposed controller is effective and robust in maintaining all the system parameters within limits under all operating conditions, including system uncertainties.

Suggested Citation

  • Nikhil Pachauri & Vigneysh Thangavel & Velamuri Suresh & Mvv Prasad Kantipudi & Hossam Kotb & Ravi Nath Tripathi & Mohit Bajaj, 2023. "A Robust Fractional-Order Control Scheme for PV-Penetrated Grid-Connected Microgrid," Mathematics, MDPI, vol. 11(6), pages 1-18, March.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:6:p:1283-:d:1090529
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    References listed on IDEAS

    as
    1. Nagaraju Dharavat & Suresh Kumar Sudabattula & Suresh Velamuri & Sachin Mishra & Naveen Kumar Sharma & Mohit Bajaj & Elmazeg Elgamli & Mokhtar Shouran & Salah Kamel, 2022. "Optimal Allocation of Renewable Distributed Generators and Electric Vehicles in a Distribution System Using the Political Optimization Algorithm," Energies, MDPI, vol. 15(18), pages 1-25, September.
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    Cited by:

    1. Mohammad Suhail Khan & Chang-Hua Lin & Javed Ahmad & Mohammad Fahad & Hwa-Dong Liu, 2023. "A Novel DC Electronic Load Topology Incorporated with Model Predictive Control Approach," Mathematics, MDPI, vol. 11(15), pages 1-19, July.

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