Vestas Wind Systems A/s

Mhi Vestas Offshore Wind A/s

Karl Axel Pétursson

Lars Rohrmann Andersen

John Bengtson

David Steele

Torben Møller Hansen

Henrik Møller Ravn

Arne Gormsen

Jesper Holm

Matthieu Alexandre

A method of detecting electrical failures in a wind turbine generator control system is described. The method comprises sending a test pulse through a signal path within the control system and detecting the test pulse once it has passed through the signal path, measuring a current through the signal path, and determining an input status and/or an output status of the signal path. Then, the nature of the electrical failure is identified based on a combination of the detected test pulse, the measured current and the determined input status and/or output status of the signal path.

Detecting electrical failures in a wind turbine generator control system

A wind turbine generator controller is described. The controller comprises switching circuitry, for selectively activating and deactivating one or more transducer circuits, and overcurrent detection circuitry, for detecting an overcurrent state in relation to one or more of the transducer circuits. The switching circuitry is responsive to the detection on an overcurrent state to selectively deactivate one or more of the transducer circuits.

Wind turbine generator controller and method

A method of measuring transducer currents in a wind turbine generator control system is described. The method comprises selectively activating a set of one or more transducers in a group of transducers, taking a first measurement of the current through the group of transducers, selectively activating a different set of one or more transducers in the group of transducers, and taking a second measurement of the current through the group of transducers.

Measuring transducer currents in a wind turbine generator

A wind turbine ID marker arrangement to enable a wind turbine installation to be identified from the air, the ID marker arrangement comprising a display surface to which a pattern of tiles are removably attached.

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Hadsten, Denmark

Karl Axel Pétursson