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Estimating free-stream inflow at a wind turbine

A wind turbine, inflow technology, applied in the control of wind turbines, monitoring of wind turbines, wind turbines, etc., can solve problems such as increased production, and achieve the effect of reliable free inflow measurement.

Active Publication Date: 2020-10-09
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In addition, the conditioned flow can also act to divert the wake flow away from the energy extraction device, which can lead to a further increase in yield

Method used

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  • Estimating free-stream inflow at a wind turbine
  • Estimating free-stream inflow at a wind turbine
  • Estimating free-stream inflow at a wind turbine

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Embodiment Construction

[0051] The illustrations in the figures are in schematic form. It should be noted that in different figures, similar or identical elements are provided with the same reference signs or with reference signs which differ from the corresponding reference signs only in the first digit.

[0052] figure 1 A wind farm 100 according to an embodiment of the invention schematically illustrated in , comprising a plurality of wind turbines 101a, 101b, 101c, 101d, 101e and 101f, and a system according to an embodiment of the invention for estimating the free Inflow device 103 . Each wind turbine 101a, 101b, 101c, 101d, 101e and 101f has a respective respective rotor blade, eg 102a, 102b, rotating in the plane of the disk under the influence of the wind. The device 103 is communicatively connected to all wind turbines capable of (two-way) directional communication, in particular receives operating and measurement signals 105 from all wind turbines and provides control signals 107 to these...

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Abstract

It is described a method of estimating free-stream inflow at a downstream wind turbine (101b, B02) of a wind park (100, 200), the method comprising: selecting, from plural candidate wind turbines (101a, 101c, 101d) previously defined specifically for the downstream wind turbine, an upstream wind turbine (101a) based on a currently determined wind direction; using determination equipment (111a) ofthe selected upstream wind turbine (101a) to determine the free-stream inflow (105).

Description

technical field [0001] The present invention relates to methods and devices for estimating free inflow at downstream wind turbines of a wind park, to methods of controlling downstream wind turbines and / or upstream wind turbines, and also to wind parks comprising means for estimating free Inflow device. Background technique [0002] EP 1 534 951 B1 discloses an assembly of an energy flow collector such as a wind farm, and a method of operation. As wind turbines extract kinetic energy from the wind, the wind speed will drop after the wind turbine. This effect is often called shadowing or wake effect, and the losses that occur are called shadowing or wake losses. Problems with shadow effects lead to major flaws in production. By adjusting the flow correctly, the fluid velocity at the location of the energy extraction device in the assembly will increase. In addition, the conditioned flow can also serve to divert the wake flow away from the energy extraction device, which ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00F03D7/04
CPCF03D7/048F03D17/00F05B2260/821F05B2270/32Y02E10/72F05B2270/204F05B2270/321G01M9/065
Inventor P·M·O·格布拉德
Owner SIEMENS GAMESA RENEWABLE ENERGY AS
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