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Waveboost - Advanced Power Take-Off Solution for Wave Energy Converters (WECs)

Objective

WaveBoost aims at providing a step-change improvement to the reliability and performance of PTOs (Power-Take-Offs), by developing and validating an innovative braking module with a Cyclic Energy Recovery System (CERS). While built and tested on the platform of the existing CorPower technology, the CERS braking module can be integrated in many types of Wave Energy Converters (WECs). Especially for point absorbers - undisputedly the WEC type with best prospects for large-scale development - WaveBoost will solve a central reliability challenge, the so-called 'end-stop' problem (excessive, uncontrolled forces when linear movement reaches end of stroke). Further, dedicated reliability assessment methods will be developed and applied.
CERS is an energy redistribution system that will allow WECs to absorb more energy from high energy wave cycles, temporarily storing excessive energy in the first step of the PTO chain, then releasing it for conversion through the remaining steps of the PTO in low energy wave cycles. Similar systems are being used in other sectors (e.g. automotive) but have not been applied to ocean energy. The additional damping force required to safely stop the motion of WECs in storm waves may be several times larger than the PTO force used to convert wave motion into electricity. By providing the extra damping needed from the CERS module, system survivability and reliability of critical components are significantly improved. Another consequence is a size reduction of the PTO for the same power rating, and an increase of the Annual Electricity Production (AEP). The technology allows WECS to operate at higher average loading, increasing average conversion efficiency. Further, the grid compliance of electricity produced is significantly improved through this new energy storage concept. The improvements described above are expected to significantly reduce shock loads on WECs, increase in AEP of 25% and reduce LCOE more than 30% compared to the state of art.

Call for proposal

H2020-LCE-2016-RES-CCS-RIA
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Funding Scheme

RIA - Research and Innovation action

Coordinator

CORPOWER OCEAN AB
Address
Vastberga Alle 60 Bv
126 30 Hagersten
Sweden
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
EU contribution
€ 2 568 930

Participants (8)

THE EUROPEAN MARINE ENERGY CENTRE LIMITED
United Kingdom
EU contribution
€ 246 279
Address
Back Road Old Academy
KW16 3AW Stromness
Activity type
Other
THE UNIVERSITY OF EDINBURGH
United Kingdom
EU contribution
€ 290 437,50
Address
Old College, South Bridge
EH8 9YL Edinburgh
Activity type
Higher or Secondary Education Establishments
WAVEC/OFFSHORE RENEWABLES - CENTRO DE ENERGIA OFFSHORE ASSOCIACAO
Portugal
EU contribution
€ 257 850
Address
Edificio Diogo Cao, Doca De Alcanta Norte
1350-352 Lisboa
Activity type
Research Organisations
PMC CYLINDERS AKTIEBOLAG
Sweden
EU contribution
€ 26 939,31
Address
Friedeborgsvagen 21
56721 Vaggeryd
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
EDP INOVACAO SA
Portugal
EU contribution
€ 67 437,50
Address
Praca Marques De Pombal 12
1250 162 Lisboa
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
RISE RESEARCH INSTITUTES OF SWEDEN AB
Sweden
EU contribution
€ 277 937,50
Address
Brinellgatan 4
501 15 Boras
Activity type
Research Organisations
G S HYDRO AKTIEBOLAG

Participation ended

Sweden
EU contribution
€ 28 810
Address
Haukadalsgatan 12
164 40 Kista
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
ARCOS HYDRAULIK AKTIEBOLAG
Sweden
EU contribution
€ 224 123,19
Address
Teknikergatan 5
781 50 Borlange
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)