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Wind generating set operation parameter control method and system, equipment and storage medium

A technology for wind turbines and operating parameters, which is used in the control of wind turbines, mechanical equipment, and engine control. Effects of Functional Stationarity Problems

Active Publication Date: 2021-07-09
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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  • Wind generating set operation parameter control method and system, equipment and storage medium

Examples

Experimental program
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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 wind generating set operation parameter control method and system, equipment and a storage medium and belongs to the field of wind power generation. A cubic spline interpolation mode is adopted to carry out interpolation calculation on a current measurement signal and continuous control parameters in segment interval endpoints of the current measurement signal, and therefore the situation that stable operation of a fan is affected by control parameter changes caused by the interpolation mode is avoided. In the mode of obtaining the control parameters through two-dimensional table look-up, the corresponding control parameters are calculated through the left end point and the right end point of each segment interval, smoothness of a curve is guaranteed, and the problem of control function stability caused by too large control parameter changes at the end points of each segment interval is avoided to the maximum extent. The cubic spline interpolation is applied to the control of the operation parameters, so that the sharp change of the control parameters of the interpolation due to the irregular sharp fluctuation of the wind speed can be avoided.

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 Applications(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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