Online anti-icing and de-icing device for wind turbine

A wind turbine and anti-icing technology, which is applied to wind turbines, wind generator components, and wind turbines in the same direction as the wind. It can solve the fatigue and fracture of wind turbine blades, limit the utilization of wind energy, and affect the safe and stable operation of the power grid system, etc. problems, to prevent and eliminate icing problems, improve anti-icing and deicing capabilities, and improve wind energy utilization efficiency

Active Publication Date: 2010-12-08
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The roughness of the surface of the airfoil increases and the airfoil changes, thereby reducing the aerodynamic characteristics of the wind turbine blades, resulting in a decrease in the efficiency of the wind turbine and a decrease in the power output of the unit; severe icing will lead to unplanned wind turbines Shutdown affects the safe and stable operation of the grid system
[0004] (2) The mass of the blade increases, thereby increasing the load on the r

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Online anti-icing and de-icing device for wind turbine
  • Online anti-icing and de-icing device for wind turbine
  • Online anti-icing and de-icing device for wind turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Such as figure 1 with figure 2 As shown, the on-line anti-icing and deicing device for a wind turbine in this embodiment includes an ultrasonic generator 1 and a deicing unit 2 for generating ultrasonic Lamb waves and horizontal shear waves on the surface of the wind turbine blade 3. The unit 2 is composed of a plurality of piezoelectric transducers 21 arranged on the inner surface of the wind turbine blade 3, and the input ends of the piezoelectric transducers 21 are connected to the output ends of the ultrasonic generator 1 respectively.

[0029] In this embodiment, the ultrasonic generator 1 is installed in the cabin of the wind turbine, the piezoelectric transducers 21 are strip-shaped, and the piezoelectric transducers 21 in the deicing unit 2 are arranged in an array along the same direction. To better excite the ultrasonic Lamb wave (Lamb wave) or horizontal shear wave (SH wave), the distance L between two adjacent piezoelectric transducers 21 distributed in paralle...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an online anti-icing and de-icing device for a wind turbine, comprising an ultrasonic generator (1) and a de-icing unit (2) which is used for generating ultrasonic Lamb waves and horizontal shear waves on the surface of a wind turbine vane (3), wherein the de-icing unit (2) comprises a plurality of piezoelectric transducers (21) arranged on the inner surface of the wind turbine vane (3), and the input end of each piezoelectric transducer (21) is respectively connected with the output end of the ultrasonic generator (1). The invention can realize online anti-icing and de-icing of the wind turbine vane without damaging wind turbine vane materials and has the advantages of low energy consumption, low cost and simple maintenance.

Description

Technical field [0001] The invention relates to the field of equipment deicing, in particular to an online anti-icing and deicing device for a wind turbine used for wind power generation. Background technique [0002] Wind energy is a very important safe and clean energy with huge reserves. Wind power is the main form of wind energy utilization. However, for wind turbines installed in cold areas, the icing of the wind turbine blades is one of the main factors affecting its safety and reliability. When the wind turbine blades are heavily iced, the following serious effects will be produced: [0003] (1) The surface roughness of the airfoil increases and the airfoil changes, thereby reducing the aerodynamic characteristics of the wind turbine blades, resulting in a reduction in the efficiency of the wind turbine and the power output of the unit; severe icing will lead to unplanned wind turbines Shutdown affects the safe and stable operation of the grid system. [0004] (2) The mass o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F03D11/00F03D1/06
CPCY02E10/722Y02E10/721F03D11/0025F03D80/40Y02E10/72
Inventor 李录平卢绪祥谭海辉晋风华饶洪德
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap