Abstract: Provided is an electric charge dissipation system for a wind turbine blade in compliance with lightning protection system and/or with the capacity of mitigating dirt problems in wind turbine generator blades. Also provided is the wind turbine blade including the electric charge dissipation system. Further provided is a method for dissipating electric charges in a wind turbine blade.

Abstract: A method and system of subsynchronous oscillations and interactions damping integrated in in a rotor converter based on an adaptive state feedback controller with two spinning vectors, and a Kalman filter whose parameters are optimized by minimizing maximum sensitivity under a constraint of positive damping for a plurality of sensible scenarios is provided. The damping signal generated by the damping module is applied either to a power proportional integer controller or to a current proportional integer controller.

Abstract: Provided is an electric charge dissipation system for a wind turbine blade in compliance with lightning protection system and/or with the capacity of mitigating dirt problems in wind turbine generator blades. Also provided is the wind turbine blade including the electric charge dissipation system. Further provided is a method for dissipating electric charges in a wind turbine blade.

Abstract: A method and system of subsynchronous oscillations and interactions damping integrated in in a rotor converter based on an adaptive state feedback controller with two spinning vectors, and a Kalman filter whose parameters are optimized by minimizing maximum sensitivity under a constraint of positive damping for a plurality of sensible scenarios is provided. The damping signal generated by the damping module is applied either to a power proportional integer controller or to a current proportional integer controller.

Abstract: A system for detecting ice on a wind turbine with a plurality of blades and a generator is provided. The temperature, humidity, and angular speed of the generator are measured in the method. The method includes processing said velocity to obtain the frequency spectrum; identifying a frequency band associated with the frequency characteristic of the blade in said spectrum; applying a Kalman filter on the band to identify the instantaneous vibration frequency; comparing the instantaneous frequency with a reference frequency corresponding to the natural frequency without ice; determining the power produced by the wind turbine, estimating the producible power, comparing both powers, and determining the presence of ice if the instantaneous frequency and reference frequency are different, if the measured power is less than the estimated power, and if the temperature and humidity tend to cause icing.

Abstract: The invention provides methods and systems for real-time monitoring of the insulation state of wind-powered generator windings comprising the following steps: a) capturing in real-time, during a predetermined time period (in situations where the generator is synchronized to the electrical network but is not yet couplet thereto as well as in situations where the generator is producing energy) the values of one or more electrical and vibration variables of the generator; b) obtaining in real-time, the temporal evolution of the vibration and of the inverse components of electrical variables at one or more predetermined frequencies; c) identifying a possible generator insulation fault when the inverse component of at least one electrical variable and/or one vibration at a predetermined frequency exceeds an absolute threshold or a temporal increase threshold pre-sets.

Abstract: The invention relates to the use of phase change materials (PCMs) to delay icing or to cause de-icing in different wind-driven power generator elements. The invention also relates to the method for delaying icing or causing de-icing in different wind-driven power generator elements based on the use of phase change materials (PCMs), said method comprising: a) obtaining the PCMs, and b) incorporating the PCMs obtained into different wind-driven power generator elements.

Abstract: Ice-resistant paint comprising an ice-resistant base component that in turn comprises a main component entailing a high solid paint with a synthetic polyurethane-based binding component dissolved in a main organic solvent, and a hydrophobe component consisting of hydrophobic ice-resistant functional nanoparticles selected from among nanoparticles functionalized with a polymer and nanoparticles functionalized in sol-gel, where the ice-resistant paint comprises a mixture of the main component with a dispersion of functional nanoparticles dispersed in a dispersing composition constituting the main solvent and a dispersant, and forms a base matrix, where the dispersing composition and functional nanoparticles form a dispersion of nanoparticles in which the functional nanoparticles are in the base matrix, and the dispersion of dispersing nanoparticles mixed with the main component to form an ice-resistant base component of the ice-resistant paint.

Abstract: The invention provides methods and systems for real-time monitoring of the insulation state of wind-powered generator windings comprising the following steps: a) capturing in real-time, during a predetermined time period (in situations where the generator is synchronized to the electrical network but is not yet couplet thereto as well as in situations where the generator is producing energy) the values of one or more electrical and vibration variables of the generator; b) obtaining in real-time, the temporal evolution of the vibration and of the inverse components of electrical variables at one or more predetermined frequencies; c) identifying a possible generator insulation fault when the inverse component of at least one electrical variable and/or one vibration at a predetermined frequency exceeds an absolute threshold or a temporal increase threshold pre-sets.

Abstract: Ice-resistant paint comprising an ice-resistant base component that in turn comprises a main component entailing a high solid paint with a synthetic polyurethane-based binding component dissolved in a main organic solvent, and a hydrophobe component consisting of hydrophobic ice-resistant functional nanoparticles selected from among nanoparticles functionalized with a polymer and nanoparticles functionalized in sol-gel, where the ice-resistant paint comprises a mixture of the main component with a dispersion of functional nanoparticles dispersed in a dispersing composition constituting the main solvent and a dispersant, and forms a base matrix, where the dispersing composition and functional nanoparticles form a dispersion of nanoparticles in which the functional nanoparticles are in the base matrix, and the dispersion of dispersing nanoparticles mixed with the main component to form an ice-resistant base component of the ice-resistant paint.

Abstract: Ice-resistant paint for wind turbine blades comprising a paint base, which in turn comprises a solvent and a hydrophobe component, which comprises nanoparticles, in which the base paint is a polyurethane high solid paint, and the nanoparticles are substantially spherical compounds comprising a silica core and a hydrophobe organosilicone coating compatible with the blade.