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Wind turbine generator system and operation control method and equipment thereof

A technology of wind power generating set and operation control, which is applied in the control of wind turbines, monitoring of wind turbines, engine control, etc., and can solve the influence and deviation of wind turbulent wind speed and wind direction values, and the prediction lag of wind speed and wind direction values , strong blindness and other problems, to achieve the effect of low data processing, saving operating costs and avoiding lag

Active Publication Date: 2017-10-31
BEIJING ETECHWIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long distance between the anemometer tower and the wind turbine and the limited number of anemometer towers, the measured wind speed and wind direction values ​​can only be used as a reference and cannot be used as the data required for wind turbine control
In addition, the distance between the wind measuring tower and each wind turbine is unknown, so it is difficult to accurately grasp the timing of advance control or yaw
More importantly, due to the small number of wind measuring towers, it is easy to overlap with multiple wind turbines in the direction, and the turbulence of the wind will cause a large impact and deviation on the wind speed and wind direction values.
Furthermore, when the wind farm is located in a mountainous area, the wind speed and direction values ​​measured by the anemometer tower cannot be used as the control basis for all wind turbines because the heights of each wind turbine are different.
[0008] (2) Use weather forecast to predict wind speed value, but this kind of prediction method is blind, and the predicted wind speed value is very inaccurate
This forecasting method requires the use of long-running historical data, which has requirements for the data volume and quality of historical data, and can only predict a certain probability, and cannot reflect the real wind speed and wind direction values.
At the same time, big data contains too much historical data. For wind turbine control, its prediction of wind speed and wind direction has a certain degree of lag

Method used

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  • Wind turbine generator system and operation control method and equipment thereof
  • Wind turbine generator system and operation control method and equipment thereof
  • Wind turbine generator system and operation control method and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Figure 4 It is a flow chart showing the operation control method of the wind power generating set according to the first exemplary embodiment of the present invention. For example, the method of this embodiment may be implemented in the main control system of the wind power generating set.

[0079] refer to Figure 4 , in step S410, the current orientation data of the nacelle of the wind power generating set is obtained.

[0080] Specifically, the current orientation of the nacelle of the wind power generating set is generally consistent with the yaw angle of the wind power generating set. Therefore, optionally, in step S410, obtain the yaw angle value read from the yaw counter of the local wind power generating set, and obtain the current orientation of the nacelle of the local wind generating set from the yaw angle value The data. Of course, the way to obtain the current direction of the nacelle of the wind power generating set is not limited to the above-mention...

Embodiment 2

[0086] Figure 5 It is a flow chart showing the operation control method of the wind power generating set according to the second exemplary embodiment of the present invention. Described in Example 2 Figure 4 Exemplary processing of step S420 in .

[0087] refer to Figure 5 , in step S510, select a wind power generating set whose position is consistent with the current orientation as a forward wind turbine, so that the wind condition data measured from the selected forward wind turbine can be used as a reference for predicting changes in wind conditions and corresponding control can be performed in advance Policy adjustments.

[0088] Specifically, from the position data of other wind power generating sets in the wind farm, select the wind power generator corresponding to the position data whose difference between the polar coordinate angle and the polar coordinate angle of the current orientation of the nacelle of the wind power generating set is within a predetermined a...

Embodiment 3

[0099] Figure 8 It is a flow chart showing the operation control method of the wind power generating set according to the third exemplary embodiment of the present invention. Described in Example 3 Figure 5 Exemplary processing of step S520 in .

[0100] Specifically, the processing in Embodiment 3 is especially applicable to situations where the wind direction changes suddenly and / or frequently.

[0101] refer to Figure 8 , in step S810, select the wind power generating set whose measured wind direction value changes the most from the other wind generating sets as the current first preliminary forward wind turbine.

[0102] The current first preliminary forward wind turbine selected here can be understood as the wind turbine that determines the target direction that the wind turbine is expected to yaw under the condition that the subsequent execution of the yaw is satisfied, and the direction of the wind turbine is determined The first preparatory forward yaws toward t...

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Abstract

The invention provides a wind turbine generator system and an operation control method and equipment thereof. The method comprises the following steps: present direction data of a cabin of the wind turbine generator system is obtained; and operation equipment of the wind turbine generator system is controlled to improve the power generation capacity of the wind turbine generator system according to the direction data, position data of each wind turbine generator system in a wind power field and wind condition data measured from each wind turbine generator system. The precise control policy adjustment is performed on the operation equipment of the wind turbine generator system according to the present direction of the cabin of the wind turbine generator system, the position data of each wind turbine generator system in the wind power field and the wind condition data measured from each wind turbine generator system beforehand, so that the power generation capacity of the wind turbine generator system is improved.

Description

technical field [0001] The invention relates to wind power generation technology, in particular to a wind power generating set and its operation control method and equipment. Background technique [0002] With the gradual expansion of the scale of wind turbines and the improvement of the safety protection of wind turbines, improving the power generation performance of wind turbines, such as the power generation and availability of wind turbines, to obtain the maximum energy and economic benefits, has become a must for wind turbine technology. the problem we are facing. [0003] In the control of wind turbines, the judgment of wind speed is one of the factors that determine the control effect of wind turbines. Accurate prediction of wind speed will help to improve the control strategy of wind turbines and achieve better control effects. [0004] At present, most of the main control systems of wind turbines still passively adjust the control strategy and yaw according to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00F03D17/00
CPCF03D7/00F05B2270/32F05B2270/321F03D7/0204F03D7/047F03D7/048F05B2260/821Y02E10/72F03D7/02F03D7/042
Inventor 马磊李庆江刘世军
Owner BEIJING ETECHWIN ELECTRIC