Synchronous generator for wind turbines

A technology for synchronous generators and wind turbines, applied in synchronous generators, wind power generation, electromechanical devices, etc., can solve problems such as increased complexity and cost, reduced reliability and service life, and complex monitoring and protection of superconducting coils. Achieve the effects of reducing weight and volume, reducing maintenance requirements, and increasing the magnetic flux density of the magnetic field

Inactive Publication Date: 2018-03-13
GAMESA INNOVATION & TECH SA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, in the above proposals, the superconducting magnetic element is set in a continuously moving element, which complicates the operation of the power supply, cooling, thermal control, monitoring and protection of the superconducting coil
These systems therefore require, depending on their configuration, rotary unions for the passage of cryogenic fluids or for high-pressure and high-purity gases such as helium, hydrogen, neon or mixtures of cryogenic gases, which will The head of the low temperature generator is connected to the compressor, thereby reducing the reliability and service life of the devices related to these operations, as well as significantly increasing their complexity and cost and preventing the hollow shaft generator configuration, because the said The swivel must be mounted on the shaft

Method used

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  • Synchronous generator for wind turbines
  • Synchronous generator for wind turbines
  • Synchronous generator for wind turbines

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Embodiment Construction

[0032] Here, the term "comprises" and its exhaustive sounds (such as "includes", etc.) must not be understood in an exclusive sense, that is, these terms must not be interpreted as excluding further elements that are described and defined as including, Possibility of steps etc.

[0033] From this description and the accompanying drawings, those skilled in the art will appreciate that the invention has been described according to its preferred embodiments, but that numerous variations can be introduced into said preferred embodiments without departing from the object of the claimed invention.

[0034] Note that any preferred embodiments described are exemplified with a generator for a medium speed wind turbine of about 400rpm, where the magnetic field is generated by an 8-pole superconducting system located in the stator. However, the invention can be implemented for any other rotational speed and number of poles of the stator.

[0035] figure 1 A longitudinal section through...

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Abstract

This invention relates to a synchronous generator for wind turbines comprising a rotor (20) and a stator (10), wherein the stator (10) comprises a plurality of induction coils (11) of a high-temperature superconducting material arranged to generate a magnetic field. The use of the superconducting stator, instead of a superconducting rotor, allows simplifying the refrigeration system, thus eliminating, for example, the rotating joints for cryogenic gas and the rotating joints for high-purity helium gas.

Description

technical field [0001] The present invention relates to the field of renewable energy sources and more specifically develops a superconducting synchronous generator for wind turbines. Background technique [0002] Wind generators or wind turbines allow the conversion of the kinetic energy of wind currents into electrical energy both for local consumption in systems connected to the wind turbines and for general power supply via the grid. To perform this energy conversion, most wind generators have a rotor connected to a system of rotating blades, the rotation being moved integrally with said blades via a multiplier. The rotor has magnetic elements which may be permanent magnets or electro-active magnets based eg on copper coils or any other electrical conductor. Likewise, wind turbines also have a stationary stator enclosing the rotor, usually made of laminated iron, and which contains a coil system such that relative rotation between the rotor and stator produces a change ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K19/16H02K3/02H02K3/42
CPCH02K3/02H02K3/42H02K19/16H01F6/06H02K55/02H02K7/183Y02E10/72Y02E40/60H02K1/18H02K1/16H02K7/1838H02K9/08H02K55/04
Inventor 埃伦娜·马丁内斯·费尔南德斯哈维尔·阿尔贝托·何塞·格拉纳多斯·加西亚何塞·洛佩斯·洛佩斯何塞·路易斯·罗德里格斯·爱洒卡洛斯·杰苏斯·萨尔瓦捷拉·麦可
Owner GAMESA INNOVATION & TECH SA
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