US 11,988,195 B2
Wind turbine control arrangement
Samuel Hawkins, Vejle (DK)
Assigned to SIEMENS GAMESA RENEWABLE ENERGY A/S, Brande (DK)
Appl. No. 17/918,846
Filed by Siemens Gamesa Renewable Energy A/S, Brande (DK)
PCT Filed Apr. 14, 2021, PCT No. PCT/EP2021/059615
§ 371(c)(1), (2) Date Oct. 13, 2022,
PCT Pub. No. WO2021/213853, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 20171000 (EP), filed on Apr. 23, 2020.
Prior Publication US 2023/0137586 A1, May 4, 2023
Int. Cl. F03D 7/04 (2006.01); F03D 7/02 (2006.01); F03D 17/00 (2016.01)
CPC F03D 7/042 (2013.01) [F03D 7/0264 (2013.01); F03D 7/043 (2013.01); F03D 7/045 (2013.01); F03D 7/047 (2013.01); F03D 17/00 (2016.05)] 14 Claims
OG exemplary drawing
 
1. A control arrangement of a wind turbine, the control arrangement comprising:
a watchdog comprising a reset module and a trigger module, wherein:
the watchdog reset module is configured to perform an internal reset when a sign-of-life signal is received from a remote communication system within a predetermined time limit, and
the watchdog trigger module is configured to issue a watchdog trigger when the predetermined time limit is exceeded;
a sensor arrangement comprising a plurality of sensors configured to observe local parameters and to report local sensor data; and
a wind turbine controller that initiates a local control sequence in response to the watchdog trigger, the local control sequence configured to switch between a first mode of operation and a second mode of operation on a basis of the local sensor data.