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United power-increasing structure and method for wind generating set

A technology of wind turbines and wind turbine blades, which is applied to wind engines, wind engines consistent with the wind direction, and wind power generation. It can solve the problems of failure to popularize and apply, and the poor effect of joint power increase, and achieve the effect of optimal power increase. , Remarkable power boosting efficiency, the effect of delaying the stall point

Pending Publication Date: 2017-08-22
中科国风科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few cases of joint power enhancement of the above three accessories. It is understood that the joint power enhancement effect is not good, and it has not been popularized and applied.

Method used

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  • United power-increasing structure and method for wind generating set
  • United power-increasing structure and method for wind generating set
  • United power-increasing structure and method for wind generating set

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0029] It should be noted that the "connected" and the words used to express "connected" in this application, such as "connected", "connected", etc., can refer to the direct connection of a component with another component, It can also mean that a component is connected to another component through other components.

[0030] It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict.

[0031] In order to optimize the effect of the joint power increase of the three kinds of accessories, we conducted a large number of wind tunnel tests to determine the relative position of the power increase accessories, and...

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Abstract

The invention discloses a united power-increasing structure and method for a wind driven generator set. The structure simultaneously adopts two or three of three power-increasing accessories of a spoiler, a vortex generator and a Gurney flap to increase the power for the wind generating set. The united method includes the steps of firstly, conducting an optimized design on the sizes of the three power-increasing accessories according to the geometric profile of a blade body; after determining the sizes of the three, combining the characteristics of the actual wind conditions of a wind field with the operation conditions of a wind driven generator, adopting the way of a united design to optimize all the layouts of the power-increasing accessories. By means of the united method, the disadvantages of using only one power-increasing accessory can be eliminated or reduced, moreover, the aerodynamic performance of wind wheel blades can be improved to the maximum, and then the generating capacity of the set can be increased. By using the power-increasing accessories to increase the generating capacity, the load of the set is less affected, and the efficiency of increasing the power for the conditions of low air density, low wind speed area, and the mismatch between wind speed and wind wheel revolving speed is remarkable.

Description

Technical field [0001] The present invention relates to the technical field of wind power generating sets, in particular to a joint power increasing structure and method of a wind power generating set. Background technique [0002] In order to improve the aerodynamic characteristics of wind turbine blades, the installation of vortex generators, spoilers, Gurney flaps and other power-increasing accessories on the blades has become one of the main methods to increase the power generation of the unit. The attachment power increase has little impact on the load of the unit and its parts, is convenient for construction, and has a short cost recovery period. It is a cost-effective and less risky power increase method. At present, a single accessory is commonly used in the industry to increase power, among which spoilers and vortex generators are more extensive and have achieved a certain power increase effect. However, there are few cases of joint power augmentation of the above-menti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCF03D1/0675Y02E10/72
Inventor 张立新赵春妮朱英伟吴映芳
Owner 中科国风科技有限公司
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