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Pitch control method and device, computer readable storage medium

A control method and pitch adjustment technology, which is applied to the control of wind turbines, engines, mechanical equipment, etc., can solve the problems of wind turbine vibration, overspeed shutdown, and untimely pitch adjustment of the pitch system, and achieve the goal of overcoming hysteresis Effect

Active Publication Date: 2019-07-26
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of gusts, the wind speed will change greatly in a short period of time, such as a sudden increase or decrease, which will cause the pitch system to be prone to untimely adjustment of the pitch, causing vibration or overspeed shutdown of the wind turbine

Method used

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

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Embodiment Construction

[0031] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention.

[0032] Under normal wind conditions, the wind speed changes slowly, and the speed of the wind turbine also changes relatively slowly. By using the pitch angle feedback regulator to automatically adjust the pitch of the wind power generating set, the speed of the wind generating set can be kept stable under the normal wind condition.

[0033] However, under gust wind conditions, the wind speed changes rapidly in a short period of time, which may easily lead to untimely adjustment of propellers. The process of adjusting the pitch of the wind power generating set under gust wind conditions will be described below.

[0034] figure 1 It is a schematic diagram of the variation of the rotation speed and electromagnetic t...

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Abstract

The invention discloses a tuning propeller control method and device, and computer readable storage medium. The tuning propeller control method includes: acquiring operating condition data of a wind generating set in a wind farm; predicting wind conditions of the wind farm according to the operating condition data; and if the wind condition is gust, increasing the tuning propeller speed of the pitch angle feedback regulator of the wind generating set until the end of the gust, and restoring the tuning propeller speed of the pitch angle feedback regulator. By adopting the technical scheme, thegust wind condition can be effectively predicted, and the tuning propeller can be cut into the wind generating set in time based on the gust wind condition.

Description

technical field [0001] The present invention relates to the technical field of wind power generation, in particular to a pitch control method and device, and a computer-readable storage medium. Background technique [0002] The pitch system of the wind turbine is based on the speed-pitch angle feedback adjustment strategy to adjust the pitch angle of the blades of the wind turbine to maintain the stable speed of the wind turbine. The above process is referred to as pitch adjustment. However, under gust wind conditions, the wind speed will change greatly in a short period of time, such as a sudden increase or decrease, which will cause the pitch system to be prone to untimely adjustment of the pitch, causing vibration or overspeed shutdown of the wind turbine. Therefore, how to effectively predict the gust wind conditions and cut into the pitch adjustment operation of the wind turbine in time has become an urgent problem to be solved at present. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/04F03D17/00F03D80/00
CPCF03D7/0224F03D7/042F03D17/00F03D80/00Y02E10/72
Inventor 马磊李庆江
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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