Methods and systems for wind turbine generators
A technology for wind turbines and generators, applied in the control of wind turbines, wind turbines, and combinations of wind turbines, etc., can solve the problems of expensive and expensive electrical equipment
Active Publication Date: 2009-05-20
GENERAL ELECTRIC CO
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Problems solved by technology
However, new enhanced cooler designs and / or generator designs, as well as increasing the amount of electrical equipment associated with wind turbine generators are expensive
Additionally, retrofitting new equipment on installed wind turbines located at heights of sixty-five meters or more is more expensive
Method used
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[0076] The following detailed description illustrates the present disclosure by way of example and not limitation. This description clearly enables one skilled in the art to make and use the present disclosure, which describes several embodiments, modifications, variations, alternatives, and uses of the disclosure, including what is presently believed to be implementing the disclosure. best mode. The present disclosure is described as applied to one preferred embodiment, namely a method of controlling temperature in a wind turbine generator. However, it is contemplated that the present disclosure has general application to controlling electrical machines in general, and in particular operable machines having the ability to supply or reduce reactive power.
[0077] As used herein, the term "blade" is intended to represent any device that provides a reaction force when in motion relative to the surrounding air. As used herein, the term "wind turbine" is intended to represent a...
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Methods and systems for reducing heat loss in a generator system are provided. The generator system includes an electrical generator and a power converter. The method includes generating electricity in the generator at a first power factor and converting electricity in the converter at a second power factor in a first mode of operation and generating electricity in the generator at a third power factor wherein the third power factor is greater than the first power factor and converting electricity in the converter at a fourth power factor wherein the fourth power factor is less than the second power factor in a second mode of operation such that the power output of the generator system in the second mode of operation is substantially equal to the power output of the generator system in the first mode of operation and the generator currents are facilitated being reduced.
Description
technical field [0001] The present invention relates generally to electrical generators and, more particularly, to methods and systems for controlling temperature in electrical generators. Background technique [0002] At least some known generator systems are designed to operate under specific conditions. For example, at least some known wind turbine generators are designed for sea level applications at site altitudes less than about 1000 meters above sea level. However, such wind turbines may be installed in locations that exceed the specific environmental conditions used to define the design requirements. If the wind turbine is installed in a location where the altitude and / or ambient temperature exceeds the specified environmental conditions in the design criteria, the cooling capacity of the wind turbine may be reduced and the generator may be subjected to excessive temperature conditions during operation . In such locations, in order to maintain a stable power opera...
Claims
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IPC IPC(8): H02P9/00H02P9/04H02J3/38H02M1/42
CPCY02E10/723F03D7/0284Y02E10/725F03D7/0272F03D9/002H02P9/007H02P2101/15F03D9/25H02P29/68F03D80/60F03D9/11Y02E10/72
Inventor 熊启谋于翔周宇张映明D·史密斯G·克吕格尔A·兰格尔
Owner GENERAL ELECTRIC CO