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Method and apparatus for controlling rotary machines

A technology of controllers and rotating parts, applied in mechanical equipment, controlling mechanical energy, controlling generators, etc., can solve problems such as rotor deflection, air gap size reduction, and imbalance

Inactive Publication Date: 2012-04-18
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, asymmetrical and / or transient loads on the rotor may be induced by the blades and / or other mechanisms
These asymmetrical and / or transient loads will sometimes deflect the rotor, reducing the size of the air gap and / or changing it to an unbalanced

Method used

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  • Method and apparatus for controlling rotary machines
  • Method and apparatus for controlling rotary machines
  • Method and apparatus for controlling rotary machines

Examples

Experimental program
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Embodiment Construction

[0012] figure 1 It is an exploded diagram of an exemplary wind turbine generator 100. In this exemplary embodiment, wind turbine generator 100 is a wind turbine with a horizontal axis. Alternatively, the wind turbine 100 may be a wind turbine having a vertical axis. In addition, in another manner, the wind turbine 100 may be a 1.5 megawatt (MW) series or a 2.5 megawatt series wind turbine commercially available from General Electric Company of Schenectady, New York. generator. Or, in another way, the wind turbine 100 can also be any wind turbine generator incorporating the invention described herein. The wind turbine 100 includes a tower or supporting surface ( figure 1 (Not shown in)) the extended fixing device 102. In the case of using a tower, the height of the tower should be selected according to factors and conditions known in the art. The wind turbine 100 also includes a hub assembly 104, a housing 106, a cover assembly 108, and a main frame 110. The housing 106 is ...

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PUM

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Abstract

A wind turbine generator includes at least one rotating member, at least one stationary member, and a clearance gap control system. The stationary member is positioned such that a clearance gap is defined between a portion of the rotating member and a portion of the stationary member. The clearance gap is configured to facilitate transmitting a controllable magnetic flux therethrough. The controlsystem includes at least one clearance gap measurement assembly, at least one power converter, and at least one controller. The controller is coupled in electronic data communication with the assembly and the converter and is configured to modulate a dimension of the gap by modulating the flux.

Description

Technical field [0001] The present invention relates generally to rotating machinery, and more specifically, to a method and apparatus for controlling the air gap size of a wind turbine generator. Background technique [0002] Generally, a wind turbine generator includes a rotor with many blades. The rotor is often installed in a housing or nacelle, and the housing is located on a base, such as the upper part of a frame or a tubular tower. At least some known utility (utility) grade wind turbines (ie wind turbines designed to provide electricity to the utility grid) may have several rotors of 30 meters (98 feet) or larger in diameter. The rotor blades convert the mechanical wind energy into a mechanical torque used to drive one or more generators. These generators are sometimes, but not always, rotatably connected (coupled) to the rotor through a gear box. The gearbox gradually increases the original low rotation speed of the turbine rotor, so that the generator efficiently co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/00H02P9/40H02K7/12
CPCF16C32/0497Y02E10/723Y02E10/725F05B2270/502F03D7/042Y02E10/722F03D9/002H02K7/09F05B2270/504F03D7/0272F03D7/02H02K49/06F03D9/25F03D80/70Y02E10/72
Inventor C·施拉姆H·吕策A·比克A·里斯贝尔格R·W·德尔梅里科
Owner GENERAL ELECTRIC CO