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Wind turbine with reduced radar signature

A wind turbine, turbine technology, applied in the field of wind turbines, can solve the problems of reduced radar sensitivity, direct interference, performance degradation, etc.

Inactive Publication Date: 2011-10-26
FLODESIGN WIND TURBINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the wind turbine is within the radar antenna's line of sight, especially if the wind turbine is within 5 miles of the radar antenna, the performance degradation is severe
movement of wind turbine blades or turning of the turbine along the direction of the wind can cause serious problems for doppler radar systems
[0005] Additionally, wind turbines can cause direct interference due to their high reflectivity, which reduces radar sensitivity and can produce false images (ghosting) or shadowed areas (blind spots)
movement of the large rotor blades or turning of the turbine into the wind can also cause false targets for doppler radar systems

Method used

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Embodiment Construction

[0031] The methods and apparatuses disclosed herein can be more fully understood with reference to the accompanying drawings. These drawings are only schematic diagrams for convenience or to show the prior art and / or current development status, therefore, these drawings are not used to indicate the relative sizes and dimensions of components or parts thereof.

[0032] Although specific terms are used for the purpose of clarity in the following description, these terms are used only to refer to specific structures of the embodiments chosen for illustrating the drawings, and are not used to define or limit the scope of the disclosure. In the following drawings and description, it should be understood that like reference numerals refer to like functioning parts.

[0033] In general, the present invention includes a wind turbine with a reduced radar signature. The reduction in radar signature is achieved due to several factors including: reduced blade diameter, absence of externa...

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Abstract

The present invention discloses a wind turbine with a housing, wherein various components of the wind turbine are coated with a radar absorbent material. The resulting wind turbine has a reduced radar signature compared to conventional wind turbines.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent No. 61 / 195,307, filed October 6, 2008. The entire content of this provisional application is incorporated herein by reference. technical field [0003] The invention relates to wind turbines. In particular, the present wind turbine has a reduced radar signature compared to conventional wind turbines. Background technique [0004] Conventional open helical blade wind turbines typically include blades up to 150 feet in length that rotate about an axis, resulting in a swept area of ​​300 feet in diameter and resulting in a very large radar cross section. Existing open blade wind turbines have been found to degrade the performance of air traffic control and air defense radars due to sudden or intermittent radar contact at the location of the wind turbine due to movement or rotation of the turbine blades in the wind. If the wind turbine is within the radar antenna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/04F03D9/32F03D80/00F03D80/10
CPCF03D1/04F05B2240/13Y02B10/30F05B2230/31F05B2260/99Y10T156/1089Y02E10/72Y02P70/50F05B2240/21F03D9/25
Inventor 沃尔特·M·小普雷斯斯担利·科瓦尔斯基三世托马斯·J·肯尼迪三世
Owner FLODESIGN WIND TURBINE
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