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Wind turbine with direct-connected variable speed blower

a variable speed, wind turbine technology, applied in the direction of machines/engines, lighting and heating apparatus, electric generator control, etc., can solve the problem that heat exchangers with their fan motors consume valuable power

Inactive Publication Date: 2010-06-03
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These heat exchangers with their fan motors consume valuable power.

Method used

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  • Wind turbine with direct-connected variable speed blower
  • Wind turbine with direct-connected variable speed blower
  • Wind turbine with direct-connected variable speed blower

Examples

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Embodiment Construction

[0019]A typical commercial horizontal axis wind turbine (HAWT) 100 is illustrated in FIG. 1. The wind turbine 100 may include a tubular tower 110, which is often manufactured of steel. The tower 110 may be erected by stacking multiple tower segments on top of each other. The tower 110 supports the weight of the nacelle 120, blades 130 and hub 140. Towers may also be of the lattice (or truss) type, and tubular towers may alternatively be formed of concrete. The nacelle 120 typically houses the drive train (e.g., gearbox, shafts, couplings, generator, etc.), as well as the main frame (also called bedplate) and yaw drives. Other items such as the control electronics may be housed within the nacelle 120 as well. Typically, the nacelle 120 has an outer skin that is comprised of a lightweight material such as fiberglass or a graphite composite. The main function of the nacelle skin is to protect the contents from the elements (e.g., rain, ice, snow, etc.).

[0020]The blades 130 are connecte...

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PUM

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Abstract

A wind turbine is provided having at least one generator, and at least one blower motor connected to the generator. The blower motor is configured to rotate the fan for circulating air to the generator. The blower motor is connected to the generator so that a variable power output of the generator results in a variable power output of the blower motor and a variable speed of the fan.

Description

BACKGROUND OF THE INVENTION[0001]The system described herein relates generally to an improved cooling system. More specifically, the system relates to an improved cooling system for a generator and / or a gearbox in a wind turbine.[0002]Wind is usually considered to be a form of solar energy caused by uneven heating of the atmosphere by the sun, irregularities of the earth's surface, and rotation of the earth. Wind flow patterns are modified by the earth's terrain, bodies of water, and vegetation. The terms wind energy or wind power, describe the process by which the wind is used to rotate a shaft and subsequently generate mechanical power or electricity.[0003]Typically, wind turbines are used to convert the kinetic energy in the wind into mechanical power. This mechanical power may be used for specific tasks (such as grinding grain or pumping water) or a generator may convert this mechanical power (i.e., the rotation of a shaft) into electricity. A wind turbine usually includes an ae...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H02K9/04
CPCF03D9/002F03D9/003F03D11/00Y02E10/725F05B2220/7068F05B2260/20Y02E10/722F05B2220/706F03D9/25F03D9/255F03D80/60Y02E10/72
Inventor GRANT, JAMES J.JANSEN, PATRICK L.
Owner GENERAL ELECTRIC CO