Yaw control method, device, and unit for double-impeller floating wind power generating set

A technology of wind turbine and yaw control, which is applied to the control of wind turbines, wind turbines, engine control, etc., and can solve problems such as consumption, increased cost of wind turbines, and poor response immediacy

Active Publication Date: 2021-01-26
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of using the yaw motor to drive the yaw increases the cost of the wind turbine generator set due to the addition of the yaw motor and the yaw bearing, and the yaw motor also consumes a certain amount of electricity during operation, and the start There is a certain buffer time for stopping, so the immediacy of response is also poor

Method used

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  • Yaw control method, device, and unit for double-impeller floating wind power generating set
  • Yaw control method, device, and unit for double-impeller floating wind power generating set
  • Yaw control method, device, and unit for double-impeller floating wind power generating set

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Experimental program
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Effect test

Embodiment 1

[0053] This embodiment discloses a yaw control method of a double-blade floating wind power generating set, such as figure 1 As shown, the steps are as follows:

[0054] S1. Obtain the wind direction information and the thrust information of the two impellers, and use a low-pass filter or a combination of a low-pass filter and a notch filter to filter the wind direction information and thrust information, and filter out the high-frequency interference in the wind direction information and thrust information. Signal.

[0055] The wind direction information can be directly detected by the laser radar wind sensor or the ultrasonic sensor, and can also be converted according to the wind speed. The thrust information can be directly detected by the thrust sensor, or can be obtained by further calculation of the sensor detection data, such as the indirect calculation of the thrust by using the measurement signals of the front and rear acceleration of the tower, the generator speed ...

Embodiment 2

[0071] This embodiment discloses a yaw control device for a double-blade floating wind turbine, such as figure 2 As shown, it includes a wind direction information acquisition module, a thrust information acquisition module, a yaw error angle calculation module, a first calculation module, a thrust distribution calculation module, a second calculation module and a pitch information calculation module.

[0072] Wherein, the wind direction information acquiring module is used for acquiring wind direction information and filtering the wind direction information.

[0073] The thrust information acquisition module is used to acquire the thrust information of the two impellers, and filter the thrust information. Both wind direction information and thrust information can be obtained from relevant sensors on the generator set.

[0074] The yaw error angle calculation module is used to calculate the angle between the wind direction and the nacelle, that is, the yaw error angle, from ...

Embodiment 3

[0090] This embodiment discloses a storage medium, which stores a program. When the program is executed by a processor, the yaw control method of the double-blade floating wind power generation set described in Embodiment 1 is implemented, specifically as follows:

[0091] S1. Obtain wind direction information and thrust information of the two impellers, and filter the wind direction information and thrust information;

[0092] S2. Calculate the angle between the wind direction and the cabin from the filtered wind direction information, that is, the yaw error angle;

[0093] S3, using the yaw error angle as the first proportional integral differential controller P D (t) input, calculate the first proportional-integral-derivative controller P D output of (t);

[0094] The expression of the first proportional-integral-derivative controller is:

[0095]

[0096] Among them, K Py is the proportionality factor, K Iy is the integral coefficient, K Dy is the differential coe...

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Abstract

The invention discloses a dual-impeller floating type wind driven generator unit yawing controlling method and device, and a unit. The method comprises the steps that, wind direction information and thrust information of two impellers are first obtained and filtered; a yawing deviation angle is calculated based on the filtered wind direction information; the yawing deviation angle is input in a first ratio integral and differential controller, and output thereof is calculated; based on the difference between the output of the first ratio integral and differential controller and the filtered thrust information and based on an impeller variable pitch angle, the required thrust force distributed to a first impeller and a second impeller in the dual impellers of the generator unit is calculated; the thrust force of the first impeller and the thrust force of the second impeller are correspondingly input into a second ratio integral and differential controller and a third ratio integral anddifferential controller, and output of the second ratio integral and differential controller and the third ratio integral and differential controller is calculated; and in combination of variable pitch information of the impellers and output of a corresponding ratio integral and differential controller, the variable pitch information is updated and a variable pitch controlling demand of a corresponding impeller is generated. The method can control yawing motion, save the cost of yawing motors and yawing bearings, and improve the responding speed.

Description

technical field [0001] The invention relates to the technical field of yaw control of wind power generators and wind turbines, in particular to a yaw control method, device and unit of a double impeller floating wind power generator. Background technique [0002] Wind turbines usually absorb the energy in the airflow through the impeller, and transfer the mechanical energy generated by the impeller blades to the generator system through the transmission system to convert it into electrical energy. The impeller is composed of several blades. The rotation angle of the blades around the blade axis is called the pitch angle. By adjusting the pitch angle, the coefficient of wind energy absorbed by the impeller can be changed. [0003] The impeller of the wind turbine is connected to the main shaft and drives the generator rotor through the gearbox. The main shaft is connected to the nacelle through the bearing and the base, and the tower is connected to the nacelle and the founda...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/04F03D1/02
CPCF03D1/02F03D7/0204F03D7/0224F05B2270/321F05B2270/706Y02E10/72
Inventor 欧柳利陈思范赵晓峻孙晓旭马冲任永
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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