ET.20.010 – Offshore multi-energy hub to support power system stability

Route: Energy transition

Cluster question: 123 How can we manage the unpredictability of complex networks and chaotic systems?

To satisfy the demand for energy and fulfill the Paris Agreement, the offshore wind capacity in the Dutch part of the North Sea should increase up to 60 GW, and to 180 GW in the whole North Sea by 2050. The integration of such capacity entails unprecedented variable operating conditions, and high risk of disruptions and blackouts in the future onshore electrical power system in the Netherlands with high societal costs. This project aims at understanding the occurrence of these risks and developing advanced solutions to maintain a robust and stable offshore electrical network and onshore electrical power system. Combining energy carriers such as electricity and hydrogen can contribute to power system stability and reduce levelised cost of energy of offshore wind. Nevertheless, new forms of stability problems (i.e. uncontrollable dynamic phenomena occurring in a time range of few milliseconds to few seconds) will occur. These problems are already starting to appear in different systems worldwide that pursue more integration of offshore wind power generation, and prevent the large-scale (i.e. multiple gigawatts) and modular roll-out of variable offshore wind power generation. Existing control, protection, and market principles are dealt individually and are not suitable to solve these problems. The first two breakthroughs of the project are new control and robust system integrity protection concepts for coordinated operation of multiple voltage source converters. This will prevent the blackout of the offshore and onshore energy systems due to instantaneous large active power variations and cascading events. The third breakthrough is new automated multi-market coordination and allocation mechanisms for integrating the offshore energy hubs with onshore energy systems. This will set special requirements for high societal engagement to enable flexibility services that are crucial to deal in the future with highly variable operating conditions of the wind power generators in combination with electrolysers.

Keywords

ancillary services, demand side response, large scale hydrogen storage, large size electrolysers, offshore multi-energy hub, Offshore wind energy, power system stability, societal risk

Submitter

Organisation TU Delft (TUD)
Name Dr. ir. J.L. (Jose) Rueda
E-mail j.l.ruedatorres@tudelft.nl
Website https://www.tudelft.nl/staff/j.l.ruedatorres/