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Chord length changing device and blade as well as chord length change controlling method and controlling system

A technology of a control system and a control method, applied in the directions of engine control, engine control parameters, wind turbine control, etc., can solve the problems of reduced wind catching ability of blades, reduced power generation efficiency of blades, corrosion of leading edge, etc., and achieves increased wind catching ability. , Make up for the effect of reducing power generation and reducing load

Active Publication Date: 2018-06-12
JIANGSU GOLDWIND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, if the wind speed is too small (below the rated wind speed), it will cause the blades to reduce the power generation efficiency
In addition, after a period of operation, the blades are prone to surface pollution, leading edge corrosion and other problems, which will also reduce the wind-catching ability of the blades and reduce the power generation efficiency of the blades.

Method used

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  • Chord length changing device and blade as well as chord length change controlling method and controlling system
  • Chord length changing device and blade as well as chord length change controlling method and controlling system
  • Chord length changing device and blade as well as chord length change controlling method and controlling system

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Embodiment Construction

[0032] Hereinafter, embodiments of the chord length changing device, the blade, the chord length changing control method and the control system of the present invention will be described in detail with reference to the accompanying drawings.

[0033] First, refer to Figure 1 to Figure 3 A chord length changing device according to an embodiment of the present invention will be described. The chord length changing device is used to change the chord length of the blades of the wind power generating set.

[0034] Such as figure 1 with figure 2 As shown, the chord length changing device according to the embodiment of the present invention includes: a chute 10, one end of the chute 10 is formed with an entrance and exit 11; an extension 20 can extend a predetermined length to the outside through the entrance and exit 11; a transmission mechanism 30, and The extension piece 20 is combined so that the extension piece 20 can telescopically move between the outside and the inside o...

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Abstract

The invention provides a chord length changing device and a blade as well as a chord length change controlling method and controlling system. The chord length changing device is used for changing chord length of the blade of a wind generating set; the chord length changing device comprises a sliding groove, an extension piece and a transmission mechanism, wherein an inlet / outlet is formed in one end of the sliding groove; the extension piece can be extended to predetermined length toward the outer part through the inlet / outlet; and the transmission mechanism is combined with the extension piece, so that the extension piece can be expanded and moved between the outer part of the inlet / outlet and the inner part of the inlet / outlet. According to the chord length changing device disclosed by the invention, the chord length of the blade can be increased at low air speed, and the air catching ability of the blade is increased so as to improve power generation quantity.

Description

technical field [0001] The present invention relates to the technical field of wind power generating sets, more specifically, to a chord length changing device that increases the chord length of the blades at low wind speeds, thereby increasing the wind-catching capacity of the blades and thus increasing the power generation, including the chord length change device A blade of a length changing device, a control method and a control system for the chord length change of the blade. Background technique [0002] When designing the blades of wind turbines, the blades are generally designed for standard wind conditions. [0003] When matching wind turbines, due to the influence of local safety factors, although different blades can be selected for matching, once the blades are finalized, the amount of modification is relatively small. In addition, the production and processing of the blade depends on the blade mold, and the possibility of subsequent changes to the blade is very...

Claims

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Application Information

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IPC IPC(8): F03D7/04F03D1/06F03D7/02
CPCF03D1/0675F03D7/0236F03D7/024F03D7/042F05B2270/101F05B2270/32Y02E10/72
Inventor 王兴波朱雨郝刘峰
Owner JIANGSU GOLDWIND SCI & TECH CO LTD
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