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Control method for inhibiting fan overspeed and wind generating set

A technology of a wind power generating set and a control method, which is applied to the control of wind power engines, wind power engines, wind power generation, etc., and can solve the problems of slow pitch rate of wind power generating sets, etc.

Active Publication Date: 2019-12-03
SANY ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention includes, for example, to provide a control method for suppressing overspeeding of wind turbines, which can effectively improve the problem of slow pitch rate of wind turbines

Method used

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  • Control method for inhibiting fan overspeed and wind generating set
  • Control method for inhibiting fan overspeed and wind generating set
  • Control method for inhibiting fan overspeed and wind generating set

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Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0043] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The embodiment of the invention provides a control method for inhibiting fan overspeed and a wind generating set, and relates to the field of wind power generation, and the control method comprises the following steps: obtaining an actual rotating speed value and an actual acceleration value of the wind generating set; and performing per-unit processing on the actual rotating speed value and the actual acceleration value according to a first preset rule to obtain a per-unit value; processing the per-unit value, a first preset parameter and a second preset parameter according to a second presetrule to obtain a control parameter for controlling the change rate of a pitch angle value, wherein the first preset parameter being smaller than the second preset parameter; adjusting the pitch anglevalue of the wind generating set according to the control parameter and a third preset rule. According to the control method, the problem that the pitch angle value conversion rate of the wind generating set is low can be effectively solved.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a control method for suppressing overspeed of a wind turbine and a wind power generating set. Background technique [0002] Variable-speed constant-frequency wind turbines are commonly used in wind discharge units. At present, wind turbines will change their own pitch angle value through the internal pitch system according to the external wind speed conditions to prevent the wind turbine from overspeeding. [0003] However, in the prior art, when the wind speed increases and the turbulence intensity increases, the pitch rate of the wind generator set lags far behind the change rate of the wind speed due to the slow pitch rate of the wind turbine generator set, thus prone to wind The overspeed of the generator set is not conducive to the stable operation of the fan. Contents of the invention [0004] The purpose of the present invention includes, for example, to provide a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCF03D7/00F05B2270/1011Y02E10/72
Inventor 杜佳佳高坤刘晓男
Owner SANY ELECTRIC CO LTD
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