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    Assembled PTO based on an array of double-acting hydraulic cylinders for WECs: From Conceptual Design to an Adjusted Detailed Model

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    141205_BilbaoMarineW ... (1.935Mb)
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    URI: http://hdl.handle.net/11556/129
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    Author/s
    Antolín-Urbaneja, Juan Carlos; Cortes, A.; Marcos, Marga; Lasa, Joseba; Estensoro, Patxi; [et al.]
    Date
    2015-04-22
    Keywords
    hydraulic power take-off
    PTO
    PTO Model
    wave energy conversion
    WEC
    PTO simulation
    Abstract
    All Wave Energy Converters (WECs) based on wave activated bodies comprises a Power Take- Off (PTO) system among other subsystems like the reaction mechanism, the supervisor of the system and the electrical generator. One of the most applied PTO systems consists of oil high pressure hydraulic devices. These devices are able to apply high forces, to store large quantities of energy through accumulators and to provide smoother power output to the motor coupled to a generator. In these systems the poor efficiency and the oil leakages contaminating the environment are considered main drawbacks. Despite of this, they are widely used in several promising WECs with the aim of optimizing the harvested wave energy along the time. The initial challenge to absorb an oscillating movement of ±30º at 5rad/s as a maximum angular speed absorbing up to 16000Nm from a specific WEC, led to the development of a simplified hydraulic model before manufacturing a PTO prototype to be verified in a Test ...
    Type
    conferenceObject

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