Operating a method for a wind turbine
US-2016377058-A1 · Dec 29, 2016 · US
Methods and systems for alleviating the loads generated in wind turbines by wind asymmetries
US9523352B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9523352-B2 |
| Application number | US-201213417693-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 12, 2012 |
| Priority date | Mar 17, 2011 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
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Abstract
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A method for alleviating rotor asymmetric loads in a variable-speed wind turbine having pitch and torque control means comprising the following steps: providing a control law that determines the pitch to be applied individually to each wind turbine blade for counteracting rotor asymmetric loads (such as wind shear, upflow, yaw misalignment) using wind speed and wind direction measurements at the wind turbine, values of the wind features that cause rotor asymmetric loads and configuration parameters of the wind turbine (whether real-time values or statistical values at the wind turbine site), said pitch to be added to the collective pitch θ 0 ; implementing said control law in the wind turbine control means. The invention also refers to a wind turbine control system arranged for implementing said method.
First claim
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The invention claimed is: 1. A method for alleviating rotor asymmetric loads in a variable-speed wind turbine-having pitch and torque control means comprising the following steps: determining wind speed and wind direction from measuring devices on the wind turbine, calculating wind shear, yaw misalignment, and upflow, determining a pitch θ to be applied individually to each wind turbine blade for counteracting the rotor asymmetric loads, wherein θ is equal to θ 0 +θ c Cos ψ+θ…
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Cross-Sectional Technologies · mapped topic
- F03D7/043Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9523352B2 cover?
- A method for alleviating rotor asymmetric loads in a variable-speed wind turbine having pitch and torque control means comprising the following steps: providing a control law that determines the pitch to be applied individually to each wind turbine blade for counteracting rotor asymmetric loads (such as wind shear, upflow, yaw misalignment) using wind speed and wind direction measurements at th…
- Who is the assignee on this patent?
- Hernandez Mascarell Octavio, Pizarro De La Fuente Carlos, Suarez Aizpun Jaime, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F03D7/043. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).