Ecotecnia Energias Renovables, S.L.
|Ecotecnia Energias Renovables, S.L. Patent applications|
|Patent application number||Title||Published|
|20110049890||Method of reducing torsional oscillations in the power train of a wind turbine - The present invention refers to a method of reducing torsional oscillations in the power train of a wind turbine in the event of grid loss. According to the method, after the grid loss, a braking torque is applied to the power train during a period of time and said period of time is determined as a function of the torsional resonance frequency of the power train.||03-03-2011|
|20100310373||METHOD FOR DETERMINING FATIGUE DAMAGE IN A POWER TRAIN OF A WIND TURBINE - A method for determining the evolution of torque of at least one rotatable shaft and the resulting fatigue damage to different power train components is provided for design and/or maintenance operations in a wind turbine that comprises the steps of determining torque (Tg) at a high speed shaft of the power train; determining moment of inertia (Ig) at the high speed shaft; determining angular acceleration (αg) at the high speed shaft; and determining torque (Tr) at the low speed shaft of the power train through the formula Tr=(Tg−Ig αg)·i. A rainflow-counting algorithm may be applied to the value of the torque (Tr) at the low speed shaft for determining the number of cycles at ranges of torque for every torque mean value.||12-09-2010|
|20100068055||method for dynamically lubricating a wind turbine pitch blade bearing - The method consists in determining at least one of wind turbine operating conditions or parameters related to pitch activity||03-18-2010|
|20100005742||JOINING DEVICE FOR HYBRID WIND TURBINE TOWERS - A joining device (||01-14-2010|
Patent applications by Ecotecnia Energias Renovables, S.L.