Patents - Global Data - Dimensions
Grant
Method of controlling a blade pitch angle of a wind turbine by use of a hydraulic system
Applicants
- Siemens (Denmark)
[NORA names: Siemens Gamesa Renewable Energy; Private Research; Denmark; Europe, EU; Nordic; OECD]
Abstract
Provided is a method of controlling a pitch angle of at least one blade of a wind turbine by use of a hydraulic system, the hydraulic system including at least one reservoir configured to store a hydraulic fluid, and at least one pump configured to supply the hydraulic fluid from the reservoir to at least one accumulator, if a hydraulic fluid pressure in the accumulator falls below a lower threshold value and till the hydraulic fluid pressure in the accumulator exceeds an upper threshold value. The accumulator is configured to store the pressurized hydraulic fluid supplied by the pump and to supply the pressurized hydraulic fluid to at least one pitch control cylinder of the hydraulic system via at least one output valve of the hydraulic system. The pressurized hydraulic fluid in the pitch control cylinder drives at least one piston to change the pitch angle of the blade.
Patent Family Records (6)
Method for controlling the blade pitch angle of a wind turbine by using a hydraulic system
Siemens Gamesa Renewable Energy A. Beryl, M.A. CHRISTENSEN
2024, CN-113294291-B
Method of controlling a blade pitch angle of a wind turbine by use of a hydraulic system
Siemens (Denmark), Siemens Gamesa Renewable Energy AS BRILL ANTHONY, KRISTENSEN MIKKEL AGGERSBJERG
2023, US-11542918-B2
METHOD OF CONTROLLING A BLADE PITCH ANGLE OF A WIND TURBINE BY USE OF A HYDRAULIC SYSTEM
Siemens (Denmark), Siemens Gamesa Renewable Energy AS BRILL ANTHONY, KRISTENSEN MIKKEL AGGERSBJERG
2022, EP-3869031-B1
METHOD OF CONTROLLING A BLADE PITCH ANGLE OF A WIND TURBINE BY USE OF A HYDRAULIC SYSTEM
Siemens (Denmark), Siemens Gamesa Renewable Energy AS BRILL ANTHONY, KRISTENSEN MIKKEL AGGERSBJERG
2021, US-20210262436-A1
METHOD OF CONTROLLING A BLADE PITCH ANGLE OF A WIND TURBINE BY USE OF A HYDRAULIC SYSTEM
Siemens (Denmark), Siemens Gamesa Renewable Energy AS BRILL ANTHONY, KRISTENSEN MIKKEL AGGERSBJERG
2021, EP-3869031-A1
Method for controlling the blade pitch angle of a wind turbine by using a hydraulic system
Siemens (Denmark), Siemens Gamesa Renewable Energy AS BRILL ANTHONY, KRISTENSEN MORTEN AALBÆK
2021, CN-113294291-A