公开(公告)号：US11177646B2

公开(公告)日：2021-11-16

申请号：US16472990

申请日：2017-12-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Karl Axel Pétursson ,  Lars Rohrmann Andersen ,  Jesper Holm ,  Henrik Møller Ravn ,  David Steele ,  Arne Gormsen

IPC: F03D9/25 ,  F03D17/00 ,  F03D7/04 ,  H02H7/06 ,  H02K7/18

Abstract: 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.

公开(公告)号：US11199177B2

公开(公告)日：2021-12-14

申请号：US16472948

申请日：2017-12-12

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Lars Rohrmann Andersen ,  John Bengtson ,  Karl Axel Pétursson

IPC: F03D17/00 ,  G01R31/28 ,  G05B19/042 ,  G01R31/50 ,  G01R31/54

Abstract: 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.

公开(公告)号：US11152838B2

公开(公告)日：2021-10-19

申请号：US16472957

申请日：2017-12-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Karl Axel Pétursson ,  Lars Rohrmann Andersen ,  John Bengtson

IPC: H02K7/18 ,  F03D17/00 ,  H02P9/02 ,  G08B21/18

Abstract: 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.