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Large-sized speed-changing wind power generator with embedded permanent magnet

A technology for wind turbines and permanent magnets, applied in the field of large-scale permanent magnet wind turbines and large-scale variable-speed wind turbines embedded in permanent magnets, can solve problems such as inoperability, system efficiency impact, and variable-speed range limitations, so as to improve efficiency. , Improve the utilization rate and facilitate the effect of mass production

Inactive Publication Date: 2009-07-29
上海荟懿环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the current variable-speed wind power systems operating at home and abroad, the doubly-fed wind power generation system has received extensive attention, but its variable speed range is limited, and it cannot operate at some speeds, which affects the system efficiency.

Method used

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  • Large-sized speed-changing wind power generator with embedded permanent magnet
  • Large-sized speed-changing wind power generator with embedded permanent magnet
  • Large-sized speed-changing wind power generator with embedded permanent magnet

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Embodiment Construction

[0022] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation is provided, but the protection scope of the present invention is not limited to the following embodiments.

[0023] Such as figure 1 As shown in the figure, there are: the stator 1 of the permanent magnet generator, the rotor 2 of the permanent magnet generator, the main shaft 3 of the permanent magnet generator, the rear end cover 4 of the permanent magnet generator, the front end cover 5 of the permanent magnet generator, and Prime mover flange 6 to which the permanent magnet generator is connected. figure 1 To illustrate the overall structural arrangement, the permanent magnet generator of the present invention is an integral closed structure.

[0024] This embodiment includes: stator 1, rotor 2, main shaft 3, rear end...

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Abstract

The invention relates to a permanent-magnet embedded type large-scale speed change aerogenerator and belongs to the technical field of wind power generation. The aerogenerator includes a stator, a rotor, a main shaft, a rear end cover and a front end cover. The rotor is installed on the main shaft and supported by a bearing, the rear end cover and the front end cover. The main shaft is connected with a driving shaft of a prime motor through a flange. The aerogenerator is characterized in that the surface of the rotor is a disk formed by a laminated core, the rotor comprises a rotor core, a permanent-magnet and a rotor field spider, the rotor core is piled on the rotor field spider and provided with a groove matched with the permanent-magnet which is embedded in the groove of the rotor core, and the rotor field spider is sheathed on the main shaft for transmitting torque. The permanent-magnet has convenient installation and strong anti-demagnetization capacity, can reduce the manufacture labor hour and enhance the reliability of a permanent-magnet generator.

Description

technical field [0001] The invention relates to a grid-connected large-scale permanent magnet wind power generator, in particular to a permanent magnet embedded large-scale variable-speed wind power generator, which belongs to the technical field of wind power generation. Background technique [0002] At present, all countries in the world attach great importance to new energy and renewable energy. Among green energy sources, wind energy is the best renewable energy source with mature technology and economical development. In the conversion process of wind energy to electric energy, the ecological environment will not be damaged. Compared with coal power, every 1000KW wind turbine can reduce the emission of 151.52 tons of carbon dioxide, 9 tons of sulfur dioxide gas and 6 tons of carbon monoxide gas per year. The development of wind power generation is a requirement of sustainable development. [0003] my country's "Renewable Energy Law" was officially implemented on Janu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K21/14
CPCY02E10/725Y02E10/72
Inventor 赵敏
Owner 上海荟懿环保科技有限公司
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