FLOTANT validates dynamic cable design

02/12/2021

The consortium behind the FLOTANT project has completed the validation of a dynamic cable concept for deep-water floating wind projects.

As part of the dynamic cable scope, consortium partners Hellenic Cables and ITA have completed the design and engineering of a braided armour for the protection of the dynamic cable’s cross-section.

This involved the application of an outer jacket made of carbon fibre-reinforced composite, in addition to the development of a solution for sensor integration and the interconnection of fibre-optic sensors for structural condition monitoring.

The dynamic cable and export system optimisation was part of Innosea’s scope of work within the consortium. The company was also responsible for the configuration analysis of the dynamic cable, while testing and validation of mooring and dynamic cables was conducted at the Dynamic Marine Component (DMaC) test facility of the University of Exeter in the UK.

“FLOTANT seeks to open the possibility to develop floating wind in even deeper waters than is possible today, unlocking potential for far greater wind power resources at lower cost. The innovative braided armour cross-section design of the dynamic cabling in such extreme water depths is pivotal to the project’s success,” said Mattias Lynch, Engineering Director at Innosea.

The next phase of the project for Innosea will be to finalise the floater global performance analyses to confirm its suitability versus project-defined sites.

The FLOTANT consortium – comprising Innosea, an AqualisBraemar LOC Group ASA (ABL Group) company, Hellenic Cables, ITA and the University of Exeter – aims to bring forward new and cost-effective solutions for floating wind installations in water depths of between 100 m and 600 m.

The project’s goal is to develop conceptual and basic engineering for a hybrid concrete-plastic floating wind farm, looking at innovative solutions for anchoring and mooring systems, and dynamic cabling, including performance testing.

In July, the consortium completed the validation model tests for the project’s low-cost floating wind technology for 10+ MW wind turbines in the offshore basin of the Maritime Research Institute Netherlands (MARIN).