Wind power field gust prediction method and system

A prediction method and wind farm technology, applied in the field of wind power, can solve problems such as wind power generation efficiency and safety instability, wind turbine safety issues, gust fluctuations, etc.

Active Publication Date: 2015-11-18
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
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Problems solved by technology

[0003] However, the wind energy used in wind power generation has randomness in wind speed and wind direction, so wind power generation will have unstable factors in terms of power generation efficiency and safety, especially the fluctuations caused by gusts.
In the existing wind power generation technology, it is also difficult to effectively capture and utilize the wind energy of gusts, and gusts can easily lead to safety problems of wind turbines

Method used

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  • Wind power field gust prediction method and system
  • Wind power field gust prediction method and system
  • Wind power field gust prediction method and system

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Experimental program
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Effect test

Embodiment 1

[0027] exist figure 1 Based on the topological diagram of the wind farm gust forecasting system shown, figure 2 A method flowchart of an embodiment of the wind farm gust prediction method provided by the present invention is shown.

[0028] Such as figure 2 As shown, the wind farm gust prediction method includes:

[0029] S201. Monitor gust information at at least three wind measuring nodes located on the periphery of the wind farm, where the gust information includes arrival time, wind speed and wind direction of the gust.

[0030] The gust information at the corresponding wind measuring nodes is monitored by meteorological monitoring equipment arranged at at least three wind measuring nodes at the periphery of the wind farm, and is periodically uploaded to the central controller. The specific location of the wind measuring node needs to meet the following conditions: the gust should be monitored by the meteorological monitoring equipment at at least one wind measuring n...

Embodiment 2

[0041] Figure 4 The method flowchart of another embodiment of the wind farm gust prediction method provided by the present invention can be regarded as figure 2 A specific implementation manner of the shown method embodiment. Such as Figure 4 shown, compared to figure 2 The method steps of the illustrated embodiment, Figure 4 It specifically shows how to obtain the current wind measuring nodes and the projection distance of each wind turbine in the direction of the gust; how to determine the upstream and downstream relationship between the wind turbines in the direction of the gust; and how to specifically predict the current A method for predicting gust information when the gust at the wind measuring node reaches each wind turbine. Such as Figure 4 As shown, the wind farm gust prediction method includes the following steps:

[0042] S401. Record the position information of each wind measuring node and each wind turbine in the wind farm through the satellite positi...

Embodiment 3

[0089] Figure 7 A schematic structural diagram of an embodiment of a wind farm gust forecasting system provided by the present invention, which can be used to perform figure 1 The method steps of the shown embodiment, as Figure 7 As shown, the wind farm gust prediction system includes: meteorological monitoring equipment 103 and a central controller 102 located at at least three wind measuring nodes on the periphery of the wind farm, and the central controller 102 includes: a data processing module 1021 and a gust information calculation module 1022 ;in,

[0090] Meteorological monitoring equipment 103, configured to monitor gust information at at least three wind measuring nodes located on the periphery of the wind farm, where the gust information includes arrival time, wind speed and wind direction of the gust;

[0091] The data processing module 1021 is used for when the meteorological monitoring equipment 103 detects that there is a gust of wind blowing towards the win...

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Abstract

Embodiments of the invention provide a wind power field gust prediction method and system. The method comprises the following steps: 1) monitoring gust information of wind measurement nodes located at the periphery of a wind power field; 2) marking the wind measurement node, which firstly monitors gust, as a current wind measurement node, projecting the current wind measurement node and various wind power machine sets on a wind direction of the gust, obtaining projection distances of the current wind measurement node and the various wind power machine sets on the wind direction of the gust, and determining an upstream and downstream relationship between the various wind power machine sets; and 3) according to the gust information of the current wind measurement node, the projection distances of the current wind measurement node and the various wind power machine sets on the wind direction of the gust, and the upstream and downstream relationship between the various wind power machine sets, calculating gust information when the gust at the current wind measurement node arrives at the various wind power machine sets. According to the technical scheme of the invention, prediction of the gust in the wind power field is achieved, and then a foundation is laid for improvements of power generation efficiency and safety of the wind power machine sets.

Description

technical field [0001] The present invention relates to the technical field of wind power, in particular to a wind farm gust prediction method and system. Background technique [0002] Wind power generation has gradually attracted people's attention in the field of electric power because it uses new and clean energy for power generation. [0003] However, the wind energy used in wind power generation has randomness in wind speed and wind direction, so wind power generation will have unstable factors in terms of power generation efficiency and safety, especially the fluctuations caused by gusts. It is also difficult to effectively capture and utilize gust wind energy in the existing wind power generation technology, and gust wind can easily lead to safety problems of wind turbines. For example, gusts can cause large-scale fluctuations in the torque of wind turbines (referred to as "wind turbines"), causing a sudden increase in the mechanical stress of the impeller, and at th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/10
CPCG01W1/10
Inventor 李健张鹏飞
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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