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Pitch control method, device, system and computer-readable storage medium

A control method and technology of a control system, which are applied in the control of wind turbines, engines, mechanical equipment, etc., can solve problems such as large wind energy, wind turbines cannot be operated, and wind turbines cannot be captured, and achieve precise pitch control. Effect

Active Publication Date: 2022-07-19
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

However, when the speed error becomes large, in order to suppress the negative impact of the speed change (for example, the increase of the limit load), the wind turbine will adopt pitch control in advance, so that the wind turbine cannot operate at the optimal tip speed Ratio state, resulting in wind turbines unable to capture the maximum wind energy

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  • Pitch control method, device, system and computer-readable storage medium
  • Pitch control method, device, system and computer-readable storage medium
  • Pitch control method, device, system and computer-readable storage medium

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Embodiment Construction

[0032] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention, and are not configured to limit the present invention. It will be apparent to those 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 intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0033] It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from...

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Abstract

The invention discloses a pitch control method, device, system and computer-readable storage medium. Wherein, the pitch control method includes: acquiring the first rotational speed error value of the wind turbine in the current sampling period, the second rotational speed error value in the previous sampling period, and the pitch angle change between the current sampling period and the previous sampling period According to the first speed error value and the second speed error value, calculate the speed error change between the current sampling period and the previous sampling period; according to the speed error change, the second speed error value and the pitch angle change, determine the current The pitch angle difference between the sampling period and the previous sampling period; control the pitch angle of the wind turbine according to the pitch angle difference. According to the embodiment of the present invention, it can be avoided that the pitch control system controls the wind turbine to retract the pitch in advance when the rotational speed of the wind turbine does not reach the rated rotational speed.

Description

technical field [0001] The present invention belongs to the technical field of wind turbines, and in particular, relates to a pitch control method, device, system and computer-readable storage medium. Background technique [0002] Generally, the main control system of the variable-speed wind turbine can perform segmental control on the pitch control system and the torque control system according to the rated speed of the wind turbine. [0003] When the wind turbine is running at the rated speed, the main control system can control the pitch control system and the torque control system to control the speed and pitch angle of the wind turbine at the same time, so that the wind turbine can run at the optimal tip speed ratio state, thereby maximizing energy extraction from wind energy. [0004] When the speed of the wind turbine does not reach the rated speed, the main control system of the wind turbine generally inhibits the pitch control of the pitch control system, so that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/00
CPCF03D7/00Y02E10/72
Inventor 刘忠朋吴先友
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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