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Energy feedback method and system for magnetic bearing

A magnetic levitation bearing and energy feedback technology, applied in information technology support system, power network operating system integration, electrical components, etc., can solve the problem of high cost and achieve the effect of reducing cost

Inactive Publication Date: 2016-02-17
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
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Problems solved by technology

[0004] Embodiments of the present invention provide an energy feedback method and system for magnetic suspension bearings, to at least solve the problem of using a backup power supply to maintain the stable suspension of the rotating shaft in the bearing control system in the prior art when the power supply is abnormally cut off. costly technical issues

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  • Energy feedback method and system for magnetic bearing
  • Energy feedback method and system for magnetic bearing
  • Energy feedback method and system for magnetic bearing

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses an energy feedback method and system for a magnetic bearing. The system comprises a magnetic bearing, a motor, a power supply and an energy feedback device, wherein the power supply is used for supplying power to the magnetic bearing and the motor; the energy feedback device is respectively connected with the motor and the magnetic bearing electrically, and is used for supplying electric energy generated by the motor at the idle state to the magnetic bearing under the condition of abnormal power failure of the power supply. According to the invention, the technical problem of high cost caused by maintaining the stable suspension of a rotary shaft in a bearing control system by utilizing a reserve power supply under the condition of abnormal power failure of the power supply in the prior art is solved.

Description

technical field [0001] The invention relates to the field of magnetic suspension bearings, in particular to an energy feedback method and system for magnetic suspension bearings. Background technique [0002] Magnetic levitation bearings are widely used in various magnetic levitation equipment (for example, magnetic levitation compressors). When the magnetic levitation compressor starts, it must first ensure that the shaft in the bearing control system is suspended stably. . If the magnetic levitation compressor is running normally, the power supply suddenly cuts off abnormally, which will cause the motor of the magnetic levitation compressor to be powered off abnormally, and the bearing control system will not work normally due to the power failure, and then the rotating shaft will fall to the magnetic levitation bearing and cannot work normally. At this time, the motor of the magnetic levitation compressor is in a idling state, and the entire bearing control system will b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/00
CPCH02J9/00Y02B70/30Y04S20/20
Inventor 胡余生李燕郭伟林牛高产
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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