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Variable-propeller demand rate correcting method and device as well as wind generating set

A technology for wind turbines and requirements, applied in wind turbines, wind turbine control, wind power generation, etc., can solve the problems that the proportional controller cannot eliminate the execution static error and the pitch execution accuracy is poor, so as to improve the pitch execution accuracy. , Eliminate the effect of execution static difference

Active Publication Date: 2021-02-26
XINJIANG GOLDWIND SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the proportional controller cannot eliminate the execution static error, and the pitch execution accuracy of the pitch actuator is poor

Method used

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  • Variable-propeller demand rate correcting method and device as well as wind generating set
  • Variable-propeller demand rate correcting method and device as well as wind generating set
  • Variable-propeller demand rate correcting method and device as well as wind generating set

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Embodiment Construction

[0045] The characteristics and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only configured to explain the present invention, not to limit the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0046] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and ...

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Abstract

The embodiment of the invention discloses a variable-propeller demand rate correcting method and device as well as a wind generating set. The variable-propeller demand rate correcting method comprisesthe following steps: determining an initial variable-propeller demand rate of the wind generating set at a current moment; determining a variable-propeller demand correcting rate corresponding to thepropeller at the current moment by a proportional integer controller; determining a target variable-propeller demand rate of the propeller at the current moment according to the initial variable-propeller demand rate and the variable-propeller demand correcting rate; sending the target variable-propeller demand rate into a variable-propeller performing mechanism for making the variable-propellerperforming mechanism to perform propeller varying according to the target variable-propeller demand rate. According to the variable-propeller demand rate correcting method and device as well as the wind generating set provided by the embodiment of the invention, the variable-propeller demand rate is corrected by the proportional integer controller, so that performing static errors can be eliminated, and variable-propeller performing precision of the variable-propeller performing mechanism is improved.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method and device for correcting a pitch demand rate and a wind power generating set. Background technique [0002] The pitch actuator of the wind power generating set mainly receives a pitch position command or a pitch rate command. For the pitch actuator that receives the pitch position command, there is no need for the main controller of the wind turbine to correct the pitch demand position included in the pitch position command, and the correction of the pitch demand position is performed by its internal program. For the pitch actuator receiving the pitch rate command, the main controller of the wind power generating set needs to correct the pitch demand rate included in the pitch rate command. [0003] At present, the main controller of the wind turbine mainly uses the proportional controller to correct the pitch demand rate. However, the proportional contr...

Claims

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Application Information

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IPC IPC(8): F03D7/00
CPCF03D7/00F05B2260/70F05B2270/704Y02E10/72
Inventor 刘忠朋吴先友侯春一
Owner XINJIANG GOLDWIND SCI & TECH
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