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Virtual Inertia Control of Variable Speed Heat Pumps for the Provision of Frequency Support

Author

Listed:
  • Ismail Ibrahim

    (School of Electrical and Electronics Engineering, University College Dublin, D04V1W8 Dublin, Ireland)

  • Cathal O’Loughlin

    (School of Electrical and Electronics Engineering, University College Dublin, D04V1W8 Dublin, Ireland)

  • Terence O’Donnell

    (School of Electrical and Electronics Engineering, University College Dublin, D04V1W8 Dublin, Ireland)

Abstract

The growth in the integration of converter interfaced renewable energy has reduced the system inertia, which threatens system stability due to high rate of change of frequency (RoCoF) and frequency nadir issues unless steps are taken to mitigate it. There is a need to provide sufficient fast frequency response to maintain adequate inertia in the system. This paper investigates the capabilities of a variable speed heat pump to provide an emulated inertial response. This paper presents a virtual synchronous machine control for a variable speed heat pump that provides support for grid frequency regulation over the inertial response time frame. A small-signal model with the transfer function of the variable speed heat pump is developed to analyse the effectiveness and feasibility of providing virtual inertia at the device and grid level, respectively. Furthermore, the small-signal model is validated using hardware in the loop simulation. Finally, the aggregated frequency response and virtual inertia contribution by a population of the heat pumps are evaluated and quantified in an urban distribution system.

Suggested Citation

  • Ismail Ibrahim & Cathal O’Loughlin & Terence O’Donnell, 2020. "Virtual Inertia Control of Variable Speed Heat Pumps for the Provision of Frequency Support," Energies, MDPI, vol. 13(8), pages 1-22, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:8:p:1863-:d:344263
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    References listed on IDEAS

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    1. Dehghanpour, Kaveh & Afsharnia, Saeed, 2015. "Electrical demand side contribution to frequency control in power systems: a review on technical aspects," Renewable and Sustainable Energy Reviews, Elsevier, vol. 41(C), pages 1267-1276.
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    Cited by:

    1. Giuseppe Edoardo Dino & Pietro Catrini & Valeria Palomba & Andrea Frazzica & Antonio Piacentino, 2023. "Promoting the Flexibility of Thermal Prosumers Equipped with Heat Pumps to Support Power Grid Management," Sustainability, MDPI, vol. 15(9), pages 1-22, May.

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