![]() Of sea states, allowing the device to be fine-tuned to shed load in large-to-extreme This secondary means of control would allow for operational adjustment in a variety The system, similar to blade pitch control in a wind turbine. ![]() Introducing variable geometry into WEC designs would add a second control knob to These control surfaces, like pitching blades in wind turbines, willĪdd significant load-shedding capabilities in larger wave environments. NREL is investigating load-shedding capabilities when designing WECs with variable-geometryĬontrol surfaces. Sea states the structural loads are controlled, allowing for extended power production. However, NREL researchers are rethinking WEC designs to guide the way to the next-generation, cost-competitive systems of tomorrow.Įmploying variable geometry, the WEC shape can be changed so that in more energetic The PTO is commonly the only means of maximizing power and limiting ![]() Hull and possess a singular means of operational control: the generator, or power ECs traditionally consist of a fixed-geometry ![]() Structural cost of the device and increasing energy capture are two paths toward reducing Of WEC devices, as they must be designed to withstand large wave loads. Roughly 35%–50% of the price of wave energy can be attributed to the structural costs NREL is working to develop next-generation power maximization, load-shedding, cost-reduction,Īnd peak-to-average power control strategies for variable-geometry wave energy converters Variable-Geometry Wave Energy Conversion and Control ![]()
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