Garmendia Olarreaga

Iker Garmendia Olarreaga, Sarriguren (navarra) ES

Patent application number	Description	Published
20110057446	WIND TURBINE OPERATION METHOD AND SYSTEM - The invention relates to wind turbines provided with doubly fed induction generators and with at least one power converter which is novel in that, under certain circumstances, it enables the turbine to operate as a full converter (FC) system, as a doubly fed (DFIG) system or as an asynchronous (AS) system, thereby increasing turbine availability.	03-10-2011
20110156390	METHOD FOR CONTROLLING A WIND TURBINE - The proposed invention describes an alternative for machines with at least one power unit (	06-30-2011

Patent application number	Description	Published
20100127494	PITCH CONTROL SYSTEM AND METHOD FOR WIND TURBINES - The present invention describes a pitch control system comprising a principal converter, and auxiliary converter, a direct current motor and a power storage system (accumulator) and has four different operation modes: normal, fault (first level), fault (second level) and emergency. In the case that a fault is detected, the system can move the motor in order to move the vanes to the desired position by making a controlled adjustment.	05-27-2010

Patent application number	Description	Published
20090273185	System for Controlling and Protecting Against Symmetrical and Asymmetrical Faults for Asynchronous-Type Generators - The invention relates to a system for controlling and protecting against symmetrical and asymmetrical faults for double-fed asynchronous-type generators, which, in the event of a symmetrical or asymmetrical fault, remains connected to the grid, absorbing the initial transient, and maintains control of the aerogenerator. In this way, the invention fulfils the requirements of the various different grid connection standards relating to the supply of active and reactive power in fault situations, which are intended to assist in the recovery of the grid.	11-05-2009