FEATURE SPONSOR
RESEARCH & DEVELOPMENT
5. OFFSHORE PLATFORM REFERENCE DESIGNS (AC AND HVDC)
The Crown Estate’s offshore wind Round 3 programme will require up to 40GW of wind generation in locations typically more than 80km offshore. DC power transmission will be required in order to efficiently carry the power from the generation source to an onshore location via subsea power cables.
Siemens Transmission & Distribution Ltd will develop the reference designs for the offshore platforms required to collect the power from multiple wind turbine arrays (AC collector platforms) and convert the power to HVDC converter platforms for transmission to shore.
6. TWI HAVE ADDITIONAL PROJECTS AND WILL COVER…
a. Novel Fabrication Methods for Foundations
TWI will prove an innovative 10 sided multi- faceted foundation design concept and demonstrate advantages over conventional monopile foundations for future offshore wind installations, in order to reduce wind turbine fabrication, installation, operation and maintenance costs.
Modelling of design and installation work as well as the development of advanced electron beam welding techniques is underway. A shoe has been designed with an angled sliding seal to allow for multi- faceted, reduced pressure, electron beam welding, capable of accommodating corner welds and suitable for industrial application.
b. The Development and Automated Application of 40-year Coatings for Wind Turbine Structures
Conventional organic coating systems are highly susceptible to mechanical damage in the splash and tidal zone of offshore structures. Maintenance of these coatings is extremely expensive but is essential if the structure is to meet design life requirements.
TWI will assess the performance of Thermal Spray Aluminium (TSA) coatings for splash and tidal zone locations of wind turbine structures. Currently, surface preparation and coating application is extremely labour intensive. This project will provide partners with the knowhow required to set up a full-scale fully automated mechanised TSA coating system for simple tubular structures such as monopiles and the sub- elements of a jacket structure to improve productivity and deposit efficiency whilst meeting target coating adhesion acceptance criteria. The mechanised process results will be evaluated against traditional manual techniques.
c. Systems and Methodologies for Condition Monitoring of Wind Turbine Towers and Blades
Operation and maintenance costs account for up to 25% of the overall lifetime costs of operating a wind turbine. TWI will develop a condition monitoring system for early fault detection in order to increase the reliability of the wind turbine, preventing any unexpected breakdowns or power outages. Acoustic Emission Condition Monitoring (AECM) and innovative vibration techniques will be developed. The process of Structural Health Monitoring (SHM) will also be used which consists of using damage-sensing features to monitor the integrity of a structure.
d. Offshore Wind Turbine Foundation Fabrication and Condition Monitoring - Knowledge Generation and Technology Transfer
The TWI technology transfer project will support companies already involved in the offshore wind supply chain or looking to enter the sector. This project will provide technical knowledge and best practice in manufacturing, enabling SMEs to develop and progress in the sector and contribute towards UK economic growth and employment opportunities.
Narec
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www.windenergynetwork.co.uk
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