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An Enhanced Emulated Inertia Control for Grid-Connected PV Systems with HESS in a Weak Grid

Author

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  • Ratnam Kamala Sarojini

    (Vellore Institute of Technology, School of Electrical Engineering, Vellore 632 014, Tamil Nadu, India)

  • Palanisamy Kaliannan

    (Vellore Institute of Technology, School of Electrical Engineering, Vellore 632 014, Tamil Nadu, India)

  • Yuvaraja Teekaraman

    (EVERGi-Sustainable Energy Communities, MOBI-Mobility, Logistics and Automotive Technology Research Centre, ETEC-Department of Electrical Engineering and Energy Technology, Faculty of Engineering, Vrije Universiteit Brussel, 1050 Brussel, Belgium)

  • Srete Nikolovski

    (Power Engineering Department, Faculty of Electrical Engineering, Computer Science and Information Technology, University of Osijek, 31000 Osijek, Croatia)

  • Hamid Reza Baghaee

    (Department of Electrical Engineering, Amirkabir University of Technology, Tehran 15875–4413, Iran)

Abstract

The role of renewable energy sources in the power grid is increasing tremendously. However, power electronic converters are used to incorporate RES into the grid without inertia. This article recommends an improved emulated inertia control approach focused on the frequency deviation and rate of change of frequency to enhance the inertia of a power system. The required inertial power calculated from emulated inertia control is delivered through hybrid energy storage systems equipped with a proper hybrid energy storage system control. The fast-varying power calculated from emulated inertia control is linked to super-capacitor. Simultaneously, the battery handles the slow varying power by regulating the DC bus voltage proportionate to the frequency variations. Further, the stability of the emulated inertia control and hybrid energy storage system controller is validated by Bode plots. The simulation results verified the correctness of the proposed emulated inertia control and hybrid energy storage system control. The real-time simulation results with the help of OPAL-RT are presented to validate the proposed method’s feasibility.

Suggested Citation

  • Ratnam Kamala Sarojini & Palanisamy Kaliannan & Yuvaraja Teekaraman & Srete Nikolovski & Hamid Reza Baghaee, 2021. "An Enhanced Emulated Inertia Control for Grid-Connected PV Systems with HESS in a Weak Grid," Energies, MDPI, vol. 14(6), pages 1-19, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1721-:d:520643
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    References listed on IDEAS

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    1. Ratnam, Kamala Sarojini & Palanisamy, K. & Yang, Guangya, 2020. "Future low-inertia power systems: Requirements, issues, and solutions - A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 124(C).
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    Cited by:

    1. Ratnam Kamala Sarojini & Kaliannan Palanisamy & Enrico De Tuglie, 2022. "A Fuzzy Logic-Based Emulated Inertia Control to a Supercapacitor System to Improve Inertia in a Low Inertia Grid with Renewables," Energies, MDPI, vol. 15(4), pages 1-23, February.
    2. Stefania Cuoghi & Riccardo Mandrioli & Lohith Kumar Pittala & Vincenzo Cirimele & Mattia Ricco, 2022. "Dual-Active-Bridge Model and Control for Supporting Fast Synthetic Inertial Action," Energies, MDPI, vol. 15(6), pages 1-19, March.
    3. Asmamaw Sewnet & Baseem Khan & Issaias Gidey & Om Prakash Mahela & Adel El-Shahat & Almoataz Y. Abdelaziz, 2022. "Mitigating Generation Schedule Deviation of Wind Farm Using Battery Energy Storage System," Energies, MDPI, vol. 15(5), pages 1-26, February.
    4. Xiaolong Liu & Xinran Li & Ya Meng & Changqin Chen & Yang Yang, 2022. "Optimized wavelet packet analysis for photovoltaic wave power suppression [An enhanced emulated inertia control for grid-connected PV systems with HESS in a weak grid]," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 17, pages 90-96.

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