Self-aligning magnetic suspension bearing system and generator

A magnetic suspension bearing and generator technology, applied in the directions of magnetic bearings, bearings, engines, etc., can solve the problem of large eccentricity of the stator and rotor air gap of the generator, and achieve the effects of improving service life, reducing radial offset and reducing vibration.

Active Publication Date: 2022-04-12
HIWING TECH ACAD OF CASIC
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] The invention provides a self-aligning magnetic suspension bearing system and a generator, which can solve the technical problem of large air gap eccentricity between the stator and rotor of the generator in the prior art

Method used

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  • Self-aligning magnetic suspension bearing system and generator
  • Self-aligning magnetic suspension bearing system and generator

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention relates to the technical field of magnetic suspension bearings, and discloses a self-aligning magnetic suspension bearing system and a generator. Wherein, the system includes an active magnetic suspension bearing and a mechanical bearing coupled to each other. The active magnetic suspension bearing and the mechanical bearing jointly support the main shaft of the generator. The active magnetic suspension bearing includes two parts: an electromagnet and an armature, and the electromagnet is installed on a fixed shaft Above, the armature is installed on the moving shaft, and the electromagnet and the armature cooperate to form a bearing magnetic circuit and generate electromagnetic force. As a result, the unbalanced magnetic pull can be offset, the vibration of the magnetic suspension bearing can be reduced, and the service life of the mechanical bearing can be improved; moreover, the radial offset between the stator and rotor of the generator can be reduced, and the radial gap between the stator and rotor can be reduced , improve the power generation efficiency of the generator, and increase the power generation income.

Description

technical field [0001] The invention relates to the technical field of magnetic suspension bearings, in particular to a self-aligning magnetic suspension bearing system and a generator. Background technique [0002] A wind turbine is an electrical device that converts wind energy into mechanical work and drives the rotor to rotate, and finally outputs alternating current. Wind turbines can be divided into two types: doubly-fed and direct-drive. Compared with doubly-fed wind turbines, direct-drive wind turbines directly connect the motor to the impeller for driving, eliminating the need for traditional components such as gearboxes. The direct-drive wind turbine has the advantage of using direct drive energy, omitting the gearbox structure in the doubly-fed wind turbine system, reducing the number of generator transmission components, and reducing the wear rate. Since the gearbox is a component that is easily overloaded and prematurely damaged in a megawatt wind turbine, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D80/70F16C32/04
CPCF03D80/70F16C32/0402F16C32/044F16C32/0451F05B2240/515F16C2360/31Y02E10/72
Inventor 吕民东毛凯韩树春李云钢翟茂春李萍胡良辉谭浩王慕昊高天宇陈慧星周伟胡道宇张泉邹玲龚珺刘坤高文轶
Owner HIWING TECH ACAD OF CASIC
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