Invention Grant
- Patent Title: Stopping a wind turbine rotor using pre-set pitch rates
-
Application No.: US17779114Application Date: 2020-11-20
-
Publication No.: US11959460B2Publication Date: 2024-04-16
- Inventor: Keld Hammerum , Christian Jeppesen , Jon Sowman
- Applicant: VESTAS WIND SYSTEMS A/S
- Applicant Address: DK Aarhus N.
- Assignee: VESTAS WIND SYSTEMS A/S
- Current Assignee: VESTAS WIND SYSTEMS A/S
- Current Assignee Address: DK Aarhus N
- Agency: Patterson + Sheridan, LLP
- Priority: DK 201970708 2019.11.21
- International Application: PCT/DK2020/050315 2020.11.20
- International Announcement: WO2021/098926A 2021.05.27
- Date entered country: 2022-05-23
- Main IPC: F03D7/02
- IPC: F03D7/02

Abstract:
Control of a wind turbine in a stop process where a stop controller is used to pitch the blades at a number of pre-set pitch rates including a first pitch rate and a second pitch rate. The stop controller is arranged to access desired pitch angles of the stopping process and add an envelope band to the desired pitch angles. In the stop process, pitching at a selected pitch rate among the number of pre-set pitch rates is performed, and the pitch rate is changed according to criteria to keep the pitch value within the envelope band.
Public/Granted literature
- US20220403822A1 STOPPING A WIND TURBINE ROTOR USING PRE-SET PITCH RATES Public/Granted day:2022-12-22
Information query