Available Technology

Development of Feedforward Control Strategies for Wave Energy Conversion Technologies

The future of wave energy will depend on developing a new generation of wave energy converters (WECs) that maximize energy extraction and mitigate critical loads while reducing costs. Today’s WECs are relatively inefficient compared to their theoretical upper limit and lack the ability to concurrently maximize power capture and minimize structural loads. The majority of existing WECs consist of fixed geometrical bodies relying predominantly on control of the power take-off system to meet design objectives. This low control authority in existing devices limits the achievable load mitigation in moderate-to-extreme sea states.
Abstract: 
The future of wave energy will depend on developing a new generation of wave energy converters (WECs) that maximize energy extraction and mitigate critical loads while reducing costs. Today’s WECs are relatively inefficient compared to their theoretical upper limit and lack the ability to concurrently maximize power capture and minimize structural loads. The majority of existing WECs consist of fixed geometrical bodies relying predominantly on control of the power take-off system...
Benefits: 
Articulated geometry allows for advanced control structures to be implemented -Optimized power under any given sea condition -Minimized fatigue -Adds an additional degree of freedom when considering wave-to-wave control capabilities
applications: 
Internal Laboratory Ref #: 
NREL ROI 15-58
Lab Representatives
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