| Patent application number | Description | Published |
|---|
| 20080252143 | Method and Device For Injecting Reactive Current During a Mains Supply Voltage Dip - The invention relates to a method and device for injecting current during a mains supply voltage dip. The inventive method consists in permanently monitoring the magnitude and phase of the mains supply voltage and, upon detection of a voltage dip, injecting reactive current in the affected main supply phase(s) in a manner that can vary over the duration of the voltage dip, at very short intervals, proportionally to the magnitude of the dip, thereby absorbing the necessary active current. The device comprises a voltage measurement switch, a transformer (low voltage/medium voltage), a DC/AC inverter, a capacitor, a voltage dip detection circuit, and a control circuit. | 10-16-2008 |
| 20080257844 | Movable Independent Crane System Used Temporarily For Moving or Replacing Components and Mounting Wind Generators - Disclosed is a movable independent crane system for moving or replacing components during maintenance operations and for mounting wind generators including auxiliary portal crane ( | 10-23-2008 |
| 20090003957 | Support for the transport of blades - Support which absorbs the torsion to which blades are subjected during transport, comprising a set of pins ( | 01-01-2009 |
| 20090031668 | Method of Mounting Elements Inside a Wind Generator Tower - The invention relates to a method of mounting elements inside a wind generator tower which is made from various different sections ( | 02-05-2009 |
| 20090114337 | Method of producing large hollow parts based on composite materials - The invention relates to a method of producing large parts based on composite materials, such as the roots of blades for wind generators. The inventive method comprises the following steps consisting in: helically winding a band of fibre- and resin-based composite material around a mould; applying a removable protective sheet to the surface of the body; applying a heat-shrinkable strip to the sheet; compacting the laminate thus formed under a vacuum; curing the resin; aligning the cured body, machining the transverse surface to be applied to the blade and forming axial housings in said surface; and positioning and affixing inserts in the axial housings in order to secure the blade. | 05-07-2009 |
| 20090167088 | Method and device for preventing the disconnection of an electric power generating plant from the electrical grid - Procedures to prevent the disconnection of a park of electricity generators from a network in the event of a voltage sag, through which, upon detection of the sag, the voltage travelling to the network is controlled in proportion to the magnitude of the sag; the active power produced by the park, rather than sent to the network, is thus diverted into to storage and/or energy dissipation equipment, keeping the park voltage at a nominal level. | 07-02-2009 |
