A method, system, device, and storage medium for controlling operating parameters of a wind turbine

A technology for wind turbines and operating parameters, which is applied in the control of wind turbines, mechanical equipment, and engines. It can solve problems such as rough curves and excessive slope changes at connection points, so as to avoid drastic changes in control parameters and control Effects on the functional stationarity problem

Active Publication Date: 2022-04-26
HUANENG CLEAN ENERGY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art that the interpolation method is not smooth and the slope at the connection point changes too much, resulting in a large change in the interpolated control parameters in a continuous control cycle and affecting the control function effect , providing a wind turbine operating parameter control method, system, device and storage medium

Method used

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  • A method, system, device, and storage medium for controlling operating parameters of a wind turbine
  • A method, system, device, and storage medium for controlling operating parameters of a wind turbine

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Effect test

Embodiment 1

[0044]A method for controlling operating parameters of a wind turbine based on spline interpolation, comprising the following steps:

[0045] Step 1) Set the control cycle, obtain the pitch angle data in the control cycle, and obtain the pitch angles of the two endpoints in the control cycle, which are respectively the initial pitch angle and the termination pitch angle;

[0046] Step 2) obtain current pitch angle;

[0047] If the current pitch angle is less than the initial pitch angle, then use the proportional gain parameter setting value corresponding to the initial pitch angle to calculate the pitch angle command;

[0048] If the current pitch angle is greater than the end pitch angle, the pitch angle command is calculated using the proportional gain parameter setting value corresponding to the end pitch angle.

Embodiment 2

[0050] A method for controlling operating parameters of a wind turbine based on spline interpolation, comprising the following steps:

[0051] Step 1) Set the control cycle, obtain the pitch angle data in the control cycle, and obtain the pitch angles of the two endpoints in the control cycle, which are respectively the initial pitch angle and the termination pitch angle;

[0052] Step 2) obtain current pitch angle;

[0053] If the current pitch angle is less than the initial pitch angle, the pitch angle command is calculated using the integral time constant corresponding to the initial pitch angle;

[0054] If the current pitch angle is greater than the end pitch angle, the pitch angle command is calculated using the integral time constant corresponding to the end pitch angle.

Embodiment 3

[0056] A method for controlling operating parameters of a wind turbine based on spline interpolation, comprising the following steps:

[0057] Step 1) Set the control cycle, obtain the pitch angle data in the control cycle, and obtain the pitch angles of the two endpoints in the control cycle, which are respectively the initial pitch angle and the termination pitch angle;

[0058] Step 2) obtain current pitch angle;

[0059] If the current pitch angle is smaller than the initial pitch angle, the differential coefficient corresponding to the initial pitch angle is used to calculate the pitch angle command;

[0060] If the current pitch angle is greater than the end pitch angle, the differential coefficient corresponding to the end pitch angle is used to calculate the pitch angle command.

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Abstract

The invention discloses a method, system, equipment and storage medium for controlling the operating parameters of a wind power unit, which belong to the field of wind power generation. The method of cubic spline interpolation is adopted to control the current measurement signal and its continuous control parameters in the end points of the segmented intervals. Carry out interpolation calculations, so as to avoid the control parameter changes caused by the interpolation method from affecting the smooth operation of the fan. In the method of obtaining control parameters by two-dimensional lookup table, the corresponding control parameters are calculated through the left and right endpoints of each subsection to ensure the smoothness of the curve and avoid the change of control parameters at the endpoints of each subsection to the greatest extent. The stability problem of the control function caused by too large. The use of cubic spline interpolation in the control of operating parameters can avoid drastic changes in interpolated control parameters due to irregular and violent fluctuations in wind speed.

Description

technical field [0001] The invention belongs to the field of wind power generation, and relates to a method, system, equipment and storage medium for controlling operating parameters of a wind turbine. Background technique [0002] As the core of the control system, the control strategy of the wind turbine determines that the wind turbine should give different control instructions under different wind speeds and different working conditions. Due to the uncertain changes in wind speed and working conditions, it is difficult to use a unified control parameter to represent the control parameters required by the control strategy in different situations. Therefore, in the traditional control strategy, two-dimensional look-up tables are generally used to determine the control parameters. parameter. In each actual control cycle, according to the measured signal within the set range, look up the table to calculate the corresponding control parameters of this signal. That is, there...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/04F03D17/00
CPCF03D7/044F03D7/0224F03D17/00F05B2270/328Y02E10/72
Inventor 金强蔡安民林伟荣焦冲李媛许扬蔺雪峰
Owner HUANENG CLEAN ENERGY RES INST
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