公开(公告)号：US20210180564A1

公开(公告)日：2021-06-17

申请号：US16627444

申请日：2018-06-21

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Lars Rohrmann ANDERSEN ,  Peter Gjellerup SCHIØNNING ,  David STEELE

IPC: F03D7/02

Abstract: Embodiments herein describe validating an emergency stop signal before activating a brake within a wind turbine. The emergency stop signal is received from a control node of a plurality of control nodes distributed throughout the wind turbine, and the emergency stop signal indicates that the wind turbine should be shut down. The wind turbine is shut down by transmitting a shutdown signal to the plurality of control nodes. Upon determining there is no indication a person is present within the wind turbine, the emergency stop signal is validated. Additionally, upon determining the emergency stop signal is valid, a brake within the wind turbine is activated to bring the rotor to a stop.

公开(公告)号：US20200091703A1

公开(公告)日：2020-03-19

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: H02H7/06 ,  F03D17/00 ,  F03D7/04 ,  F03D9/25 ,  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：US20190331094A1

公开(公告)日：2019-10-31

申请号：US16472969

申请日：2017-12-12

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Lars Rohrmann ANDERSEN ,  John BENGTSON ,  Karl Axel PETURSSON

IPC: F03D17/00

Abstract: A method of measuring electrical characteristics of a transducer in a wind turbine generator control system is described. The method comprises measuring one or more electrical characteristics of a transducer of the control system, and comparing the measured electrical characteristics to one or more reference electrical characteristics, the reference electrical characteristics being one of (a) previously measured electrical characteristics of that transducer, (b) reference electrical characteristics stored in a database, and (c) previously measured electrical characteristics of an identical or similar transducer in another wind turbine generator.