Improving Dynamic Response of Hydro Power Plants Using Electrical Energy Storage in Low-inertia Power Grids

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Abstract

The share of renewable energies in the electricity generation side is increasing to replace fossil fuels and address environmental concerns. Consequently, the total rotational mass of conventional generations and the inertia of the power system will decrease. Here, first the potential of hydro power plant assisting the power system operator managing frequency deviations, in a low inertia power system is studied. Then, the capability of electrical energy storage (EES) to assist hydro power plant in primary frequency response services, is surveyed. The droop control method is considered for the operation of EES facility, with values of 1 and 5. Different case studies are defined, to study the impact of the hydro power plant and the EES facility on primary frequency response of the system. Based on the results, the hydro power plant will improve the settling time, and final recovered value of frequency of the system after a disturbance. However, it has a rather slow dynamic response facing deviations in the power system frequency. The EES facility has the best improvement in the Nadir point, while the settling point is better than when the system is without hydro power plant. Moreover, the final value of the frequency after a disturbance is also higher than the case without hydro power plant and EES facility. Finally, the droop control with value of 5 has better performance than droop with value of 1.

Original languageEnglish
Title of host publicationProceedings - 24th EEEIC International Conference on Environment and Electrical Engineering and 8th I and CPS Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2024
EditorsZbigniew Leonowicz, Erika Stracqualursi
PublisherIEEE
Number of pages5
ISBN (Electronic)979-8-3503-5518-5
DOIs
Publication statusPublished - 2024
MoE publication typeA4 Conference publication
EventIEEE International Conference on Environment and Electrical Engineering and IEEE Industrial Commercial Power Systems Europe - Rome, Italy
Duration: 17 Jun 202420 Jun 2024

Publication series

NameInternational Conference on Environment and Electrical Engineering
ISSN (Electronic)2994-9467

Conference

ConferenceIEEE International Conference on Environment and Electrical Engineering and IEEE Industrial Commercial Power Systems Europe
Country/TerritoryItaly
CityRome
Period17/06/202420/06/2024

Keywords

  • Dynamic response
  • Electrical energy storage
  • Hydro power plant
  • Low inertia power system
  • Primary frequency response

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