Fluid turbine lightning protection system

A technology for lightning protection and turbines, applied in the direction of engines, wind power generation, mechanical equipment, etc., can solve problems such as protective conductor barriers, and achieve the effect of reducing the risk of critical damage and reducing complexity

Inactive Publication Date: 2014-06-18
奥金公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, horizontal axis wind turbines with open blades pose an obstacle to this protective conductor

Method used

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  • Fluid turbine lightning protection system
  • Fluid turbine lightning protection system
  • Fluid turbine lightning protection system

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Embodiment Construction

[0031] A more complete understanding of the components, processes and apparatuses disclosed herein can be obtained with reference to the accompanying drawings. The drawings are for illustrating the present invention and not for showing relative sizes and dimensions or for limiting the scope of the exemplary embodiments.

[0032] Although specific terms are used in the following description, these terms are only intended to refer to specific structures in the drawings, and are not intended to limit the scope of the present invention. It is understood that like reference numerals denote components with similar functions.

[0033] The term "about" when used in reference to a quantity is inclusive of the stated value and has the meaning dictated by the context. For example, it includes at least a degree of error associated with a particular number of determinations. When used to indicate a range, the term "about" should also be considered as disclosing the range defined by the a...

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Abstract

A fluid turbine lightning protection system includes at least one air termination device, formed at least in part of an electrically conductive material, that can be positioned on a shroud of a fluid turbine and placed in electrical communication with a down conduction system. The down conduction system is in electrical communication with an earth-termination system configured to dissipate electricity transferred thereto to the ground. The at least one air termination device is configured to intercept a lightning strike and direct it through the down conduction system, the earth-termination system, and into the ground.; The at least one air termination device may be positioned on a turbine shroud based on a "Rolling Sphere" derivation wherein the "Rolling Sphere" derivation is derived from the equation r = 10 I0.65, where I is the peak current in kiloamperes and r is the rolling sphere radius in meters.

Description

[0001] related application [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 61 / 534,467, filed September 14, 2011, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to the field of wind turbines, and more particularly to the protection of shrouded turbines from lightning strikes. Background technique [0004] Utility-scale wind turbines used to generate electricity may have from one to five open blades including a rotor. The rotor converts wind energy into rotational torque that drives at least one generator rotationally coupled to the rotor, either directly or via a transmission assembly, to convert mechanical energy to electrical energy. The turbine typically has long blades, which are the most lightning-struck components of a wind turbine. Wind turbines need to be equipped with lightning protection systems to conduct high currents from light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/04F03D11/00
CPCF03D11/0033Y02E10/726F03D1/04Y02E10/722F01D25/00F03D80/30Y02E10/72
Inventor R·P·简森S·赫乔特
Owner 奥金公司
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