Centralized frequency control of offshore hybrid power plant

Aivaras Celna*, Mikkel P. S. Gryning, Mohammad K. Bakhshizadeh, Anca D. Hansen, Soroush Afkhamimeybodi, Poul E. Sørensen, Kaushik Das

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

With the expansion of Renewable Energy Sources (RES) and due to their intermittency and lack of inertia, transmission system operators (TSO) are forced to procure larger power reserves to prepare for frequent and severe occurrences of imbalances in the future power systems. Hybrid Power Plant (HPP) which is a combination of technologies such as offshore wind power plant (WPP) and onshore solar power plant (SPP) connected with a Battery Energy Storage System (BESS) and Power-to-X (P2X) electrolysers can support the system by having a combined enhanced capability for the provision of frequency services compared to the individual RES. In this work, technical requirements for Fast Frequency Reserve (FFR), Frequency Containment Reserves (FCR) and Frequency Restoration Reserves (FRR) established in the Nordic Electrical system and applicable to the eastern part of Denmark, are summarized. Further, a centralised frequency control architecture based on frequency reserve allocation to HPP technologies by prioritization is proposed, which is implemented at the top-level control layer enabling coordinated response at the point of connection (POC). The simulation cases representing prequalification tests defined by TSOs demonstrate the performance of such architecture and highlight the capabilities of HPP to provide various frequency services while operating in different operation scenarios.
Original languageEnglish
Title of host publicationProceedings of 8th International Hybrid Power Plants & Systems Workshop (HYB 2024)
PublisherInstitution of Engineering and Technology
Publication date2024
Pages106-114
ISBN (Electronic)978-1-83724-148-4
DOIs
Publication statusPublished - 2024
Event8th International Hybrid Power Plants and Systems Workshop - Azores, Portugal
Duration: 14 May 202415 May 2024

Workshop

Workshop8th International Hybrid Power Plants and Systems Workshop
Country/TerritoryPortugal
CityAzores
Period14/05/202415/05/2024

Keywords

  • Active power
  • Battery energy storage system
  • Dispatch
  • Offshore wind power plant
  • P2X

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