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Method for controlling power of variable-speed wind generating set based on slip frequency

A technology of a wind power generating set and a control method, which is applied in the control of wind power generators, wind power generators, wind power generation, etc., and can solve problems such as the inability to achieve automatic dynamic adjustment effects, and the inability of wind power generating sets to realize power-limited operation control.

Pending Publication Date: 2022-07-12
内蒙古京能乌兰伊力更风力发电有限责任公司
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Problems solved by technology

[0004] However, since the slip control adopted in the prior art is usually based on the preset slip control curve, the automatic dynamic adjustment effect cannot be realized. From the perspective of practical application, this will cause the wind turbine to be unable to realize the power-limited operation control, which also As a result, the slip control scheme is subject to more application restrictions

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  • Method for controlling power of variable-speed wind generating set based on slip frequency
  • Method for controlling power of variable-speed wind generating set based on slip frequency
  • Method for controlling power of variable-speed wind generating set based on slip frequency

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Embodiment Construction

[0024] The embodiment of the present invention discloses a method for controlling the power of a variable-speed wind turbine based on slip. The main controller of the wind turbine creates a slip control curve, and the slip controller realizes the control of the wind turbine based on the slip control curve. Power control, wherein the two-dimensional coordinate relationship between the rotational speed of the wind turbine and its power is determined through the slip control curve.

[0025] In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings withou...

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Abstract

The invention discloses a method for controlling the power of a variable-speed wind generating set based on slip frequency, which comprises the following steps of: creating a slip frequency control curve by a main controller of the wind generating set, and controlling the power of the wind generating set by the slip frequency controller based on the slip frequency control curve, the two-dimensional coordinate corresponding relation of the rotating speed and the power of the wind generating set is determined through the slip frequency control curve; according to the method, the control effect of the wind generating set on rotating speed stable adjustment and power stable output can be improved, meanwhile, the slip frequency control curve is automatically and dynamically adjusted through slip frequency limited power control, and the limited power control requirement of the wind generating set is met.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a method for controlling the power of a variable-speed wind generator set based on slip. Background technique [0002] In the field of wind power generation, the pitch constant speed asynchronous wind turbine usually includes a variable speed wind turbine with a slip control system. See figure 1 As shown, the variable-speed wind turbine with slip control system mainly includes (wound rotor) asynchronous generator a. During operation, the stator end of asynchronous generator a is always connected to the grid b, while the At the rotor end, the asynchronous generator a is connected to the variable slip system c through slip rings. The asynchronous generator a rotates and starts the blades d to achieve the optimal blade angle and accelerates the rotor; when the asynchronous generator speed has reached the synchronous speed, the soft starter e is used to control the ...

Claims

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Application Information

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IPC IPC(8): F03D7/04F03D7/02H02J3/38
CPCF03D7/042F03D7/028H02J3/381H02J2300/28Y02E10/72
Inventor 陈晓东孙耀平呼木吉乐图石志强郭韶昕赵洁陈祥冯勇李润伟董燕伟李威李文杰
Owner 内蒙古京能乌兰伊力更风力发电有限责任公司
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