Induction heating and deicing device used for wind generating set blade

A technology for wind turbines and induction heating, applied in wind turbines, wind power generation, engines, etc., can solve problems such as low efficiency, lightning strikes, easy to change blade material properties, etc., achieve low energy consumption, avoid lightning strike safety hazards, and deicing high efficiency effect

Inactive Publication Date: 2016-01-06
SHANGHAI ELECTRIC WIND POWER GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the shortcomings of the existing methods such as low efficiency, easy change of blade material characteristics, and even lightning strikes, the present invention provides an induction heating deicing device for wind turbine blades. The electromagnetic coil inside the blade cavity and the conductive coating applied to the blade surface

Method used

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  • Induction heating and deicing device used for wind generating set blade

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] An induction heating and deicing device for blades of a wind power generating set according to the present invention consists of an electric energy conversion input module (2), an electromagnetic coil (4) installed inside the cavity of the blade (5), and an electromagnetic coil (4) coated on the blade (5). The surface consists of a conductive coating (1). When the alternating current converted by the power conversion input module (2) passes through the electromagnetic coil (4), a certain range of alternating magnetic field will be generated, causing the conductive coating (1) within the range of the alternating magnetic field to generate heat, and the surface of the blade (5) will be removed Ice and prevent refreezing.

[0015] The electric energy conversion input module (2) is placed in the hub (3), which is convenient for maintenance and repair.

[0016] By ...

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Abstract

The invention discloses an induction heating and deicing device used for a wind generating set blade. The induction heating and deicing device consists of an electric energy conversion input module mounted in a hub or a cabin, an electromagnetic coil mounted in a blade cavity and a conductive coating which coats on the surface of the blade. When alternating-current power converted by the electric energy conversion input module passes through the electromagnetic coil, an alternating magnetic field within a certain range is generated, and the conductive coating within the range of the alternating magnetic field is heated, so that ice on the blade surface is removed and the blade surface is prevented from icing again. By virtue of the electromagnetic induction-heating mode, the conductive coating on the blade surface is heated, so that the energy consumption is small, the deicing efficiency is high, and a blade tissue temperature is not changed. Meanwhile, the conductive coating does not have influence on aerodynamic performance of the blade, and is not directly connected with a power supply of a wind generating set, so that lightning stroke potential safety hazards is avoided.

Description

technical field [0001] The invention relates to a device for applying electromagnetic induction heating to remove icing on the blades of a wind power generating set and prevent re-icing. Background technique [0002] When wind turbines work in low or rainy and snowy weather, the surface of the blades is prone to ice or snow. The icing of the blades usually occurs at the leading edge of the airfoil, which changes the aerodynamic shape of the blades, increases the resistance of the blades, and reduces the power generation of the wind turbine. At the same time, icing on the blades of the wind turbine will increase the load of the wind turbine, and even cause the components of the wind turbine to be unbalanced, causing the wind turbine to shut down or fail for a long time, seriously reducing the annual power generation of the wind turbine, and affecting the service life of the wind turbine. Therefore, it is of great significance to remove the icing on the blade surface in time ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/40
CPCY02E10/72
Inventor 王海洋赵大文许移庆
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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