公开(公告)号：US20230231375A1

公开(公告)日：2023-07-20

申请号：US18004879

申请日：2021-07-06

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Luis Miguel CALHAU GONÇALVES ,  Kenneth G. HANSEN ,  Hans Christian BISGAARD-CLAUSEN ,  Duy Duc DOAN ,  Hamid SOLTANI ,  Poul Møhl DYRLUND ,  Kent TANGE

IPC: H02H7/06 ,  H02P9/00 ,  H02H3/00 ,  H02J3/38

CPC classification number: H02H7/06 ,  H02P9/006 ,  H02H3/006 ,  H02J3/381 ,  H02P2101/15

Abstract: A system for a wind turbine that includes a protection system interfaced to a circuit breaker system and a sensing system. The protection system is configured to determine an operational mode of the wind turbine by monitoring at least two parameters determine a parameter set comprising a plurality of operational parameters based on a determined operational mode, and an associated set of expected values corresponding to the parameter set, determine actual values corresponding to the determined parameter set, identify a fault condition in the event that the determined set of actual values of the operational parameters do not correspond to the determined set of expected values of the operational parameters, and implement a protection action based on the identified fault condition.

公开(公告)号：US20240014753A1

公开(公告)日：2024-01-11

申请号：US18040640

申请日：2021-08-03

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Torsten LUND ,  Hamid SOLTANI ,  Gert Karmisholt ANDERSEN ,  Germán Claudio TARNOWSKI

IPC: H02P9/04 ,  H02P9/10

CPC classification number: H02P9/04 ,  H02P9/107 ,  H02P2101/15

Abstract: Aspects of the present invention relate to a method for reducing high torque levels and/or high rates of change of torque in a wind turbine generator that comprises a machine-side converter and a line-side converter connected by a DC link, and, wherein the line-side converter is operated according to a virtual synchronous machine control scheme. The method comprises: determining a generator torque; determining a torque surplus indicating the amount that the generator torque exceeds a torque limit; determining an active power surplus corresponding to the torque surplus; controlling the line-side converter according to the virtual synchronous machine control scheme using an input parameter configured to reduce the active power output of the line side converter by the active power surplus.