Wind Farm Control for Improved Battery Lifetime in Green Hydrogen Systems without a Grid Connection

Adam Stock, Matthew Cole, Mathieu Kervyn, Fulin Fan, James Ferguson, Anup Nambiar, Benjamin Pepper, Michael Smailes, David Campos-Gaona

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Abstract

Green hydrogen is likely to play an important role in meeting the net-zero targets of countries around the globe. One potential option for green hydrogen production is to run electrolysers directly from offshore wind turbines, with no grid connection and hence no expensive cabling to shore. In this work, an innovative proof of concept of a wind farm control methodology designed to reduce variability in wind farm active power output is presented. Smoothing the power supplied by the wind farm to the battery reduces the size and number of battery charge cycles and helps to increase battery lifetime. This work quantifies the impact of the wind farm control method on battery lifetime for wind farms of 1, 4, 9 and 16 wind turbines using suitable wind farm, battery and electrolyser models. The work presented shows that wind farm control for smoothing wind farm power output could play a critical role in reducing the levelised cost of green hydrogen produced from wind farms with no grid connection by reducing the damaging load cycles on batteries in the system. Hence, this work paves the way for the design and testing of a full implementation of the wind farm controller.
Original languageEnglish
Article number5181
JournalEnergies
Volume16
Issue number13
DOIs
Publication statusPublished - 5 Jul 2023

Keywords

  • battery lifetime
  • electrolysis
  • green hydrogen
  • wind farm control
  • wind turbine control

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

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