Wind speed information processing method, wind speed information processing device, variable-pitch control method, variable-pitch control device and variable-pitch control system
A control method and wind speed technology, which are applied in the control of wind turbines, engine control, wind energy power generation, etc., can solve the problems of inaccurate wind speed data, long measurement distance of wind speed sensors, and high blindness, and achieve low hardware cost and modification cost. Improved power generation, power generation efficiency, and stable rotational speed control
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Embodiment 1
[0044] figure 1 is a flowchart illustrating a pitch control method according to Embodiment 1 of the present invention. by including as Figure 9 The shown apparatus performs the method.
[0045] refer to figure 1 , S110, acquiring the wind speed change data of the current upwind side of the wind power generating set.
[0046] Wherein, the wind speed change data may be data of a change trend formed by wind speed data at multiple sampling time points. The current upwind side of the wind power generating set may be one or more wind power generating sets located at a predetermined position of the wind power generating set. The wind power generating set may be any wind power generating set on the downwind side.
[0047] Specifically, the wind farm includes multiple wind power generators, and the multiple wind power generators can be divided into upwind side wind power generators and downwind side wind power generators according to the geographic location information of the win...
Embodiment 2
[0063] Figure 4 is a flowchart showing a pitch control method according to Embodiment 2 of the present invention, and the embodiment can be regarded as figure 1 and image 3 Yet another specific realization scheme combined.
[0064] refer to Figure 4 , S401, the central monitoring obtains the geographic location information of multiple wind power generating sets, the nose orientation information and the wind direction data measured by each wind generating set.
[0065] Wherein, the geographic location information may be information of geographic coordinates, or information of a relative distance to a certain base point. The wind direction data measured by each wind power generating set is relative to the direction of the sensor used to detect the wind direction in the wind generating set.
[0066] Specifically, in order to control multiple wind power generators in a wind farm, a central monitoring system may be set for the wind farm. A plurality of different sensors are...
Embodiment 3
[0110] Based on the same technical idea, Figure 9 is a logic block diagram showing the pitch control device according to Embodiment 3 of the present invention. refer to Figure 9 , the device includes a wind speed change acquisition module 910 , a wind speed change comparison module 920 and a pitch control module 930 .
[0111] The wind speed change acquisition module 910 is used to acquire the wind speed change data of the current upwind side of the wind power generating set.
[0112] The wind speed change comparison module 920 is configured to determine whether the wind speed change of the local wind power generating set matches the current wind speed change on the windward side according to the wind speed data measured by the local wind power generating set and the current wind speed change data on the windward side .
[0113] The pitch control module 930 is configured to: if the change in wind speed of the wind power generating set matches the change in wind speed on t...
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