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Micro terrain wind power calculation method, device and system

A wind power and micro-topography technology, applied in computing, circuit devices, instruments, etc., can solve problems such as impacting the safe operation of the power grid, damage to the fan unit, and threatening the safe operation of the power grid, so as to improve accuracy, ensure safe and stable operation, and optimize The effect of new energy power generation dispatching

Active Publication Date: 2021-07-13
湖南防灾科技有限公司
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Problems solved by technology

Wind turbines are located in micro-terrain areas, and the wind power fluctuates greatly. In winter, the blades freeze and shut down in a centralized manner, resulting in a large area off-grid, which seriously threatens the safe operation of the grid, such as seriously endangering the balance between supply and demand of the grid load.
In addition, wind turbines are mostly located in areas with strong winds caused by local topography. When strong convective weather systems, typhoons and other weather phenomena pass through the border, the wind turbines will be locked up urgently or even the turbines will be damaged. This will also cause the power of the wind farm to drop sharply and impact the power grid. safe operation of
[0003] The existing wind power prediction methods can be mainly divided into physical model methods, statistical methods, and learning methods. However, these methods regard wind power as a stable time series, and it is difficult to predict the power caused by abrupt events such as wind turbine icing and strong wind shutdown. Therefore, the accuracy of wind power prediction is greatly reduced under these extreme disaster conditions

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  • Micro terrain wind power calculation method, device and system
  • Micro terrain wind power calculation method, device and system

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Embodiment Construction

[0056] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the solutions of the present invention will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0057] In the following description, many specific details have been set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here; obviously, the embodiments in the description are only some embodiments of the present invention, and Not all examples.

[0058] The technical problem to be solved by the embodiments of the present invention is to provide a micro-terrain wind power model that considers extreme disasters in view of the problem that the existing wind power prediction technology cannot predict the sudden power drop c...

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Abstract

The present invention relates to a method, device and system for calculating micro-topography wind power. The method includes: constructing a micro-topography numerical forecast model, and determining the first meteorological element sequence based on the numerical forecast model; obtaining the second meteorological element sequence corresponding to the first meteorological element sequence Meteorological element sequence, and obtain wind power observation value, wind turbine ice thickness observation value and wind turbine hub height observation value of strong wind wind speed; based on the first meteorological element sequence and the second meteorological element sequence, correct the meteorological elements; and based on the revised meteorological Calculate the wind power based on the elements and wind power observations; calculate the wind turbine ice thickness based on the corrected meteorological elements and wind turbine ice thickness observations; and calculate the wind turbine hub Strong wind speed at height; based on the observed wind power, calculated wind power, wind turbine ice thickness, and strong wind speed at the height of the wind turbine hub, calculate the wind power under the target weather conditions.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method, device and system for calculating micro-topography wind power. Background technique [0002] With the rapid increase of wind power clean energy installed capacity and the gradual increase of wind power installed capacity, the influence of wind power grid integration on the safety and stability of power system has gradually become prominent. In recent years, there have been operating accidents involving large-scale wind power system chain trips at home and abroad. Among them, extreme meteorological disaster conditions such as freezing and strong wind are the important reasons for the accident. Wind turbines are located in micro-terrain areas, and the wind power fluctuates greatly. In winter, the blades freeze and shut down in a centralized manner, resulting in large-scale off-grid, which seriously threatens the safe operation of the grid, such as seriously...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06H02J3/00
CPCG06Q10/04G06Q50/06H02J3/004Y02A30/00Y02A90/10
Inventor 陆佳政蔡泽林徐勋建李波熊蔚立冯涛郭俊怀晓伟叶钰
Owner 湖南防灾科技有限公司
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