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Control method and control device of magnetic suspension compressor system and storage medium

A technology of a compressor system and a control method, which is applied to components, pump control, circuit devices, etc. of a pumping device for elastic fluids, and can solve problems such as bearing drop wear, increased cost, and increased uninterruptible power supply, to ensure The effect of safe landing and guaranteed power supply

Pending Publication Date: 2022-05-24
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a control method, a control device and a storage medium for a magnetic levitation compressor system, aiming to solve the existing problem of adding an uninterruptible power supply for the bearing The scheme of controller power supply increases the problem of cost

Method used

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  • Control method and control device of magnetic suspension compressor system and storage medium
  • Control method and control device of magnetic suspension compressor system and storage medium
  • Control method and control device of magnetic suspension compressor system and storage medium

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Embodiment Construction

[0025] In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0026] It is to be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described feature, integer, step, operation, element and / or component, but does not exclude one or more other The presence or addition of features, integers, steps, operations, elements, components and / or sets thereof.

[0...

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Abstract

The invention is suitable for the technical field of magnetic suspension compressors, and provides a control method and a control device of a magnetic suspension compressor system and a storage medium, and when the input power supply loses power, a direct-current bus capacitor is charged through back electromotive force generated when a rotor of a magnetic suspension compressor rotates, and the magnetic suspension compressor system is controlled. The direct-current bus voltage is kept stable for a period of time, power supply of the bearing controller can be guaranteed under the condition that hardware cost is not increased until the rotating speed of the rotor is reduced to the range where the bearing can safely land, safe landing of the bearing is guaranteed, and the bearing is prevented from being damaged due to the fact that the bearing controller loses power and the bearing rotating at a high speed directly falls.

Description

technical field [0001] The application belongs to the technical field of magnetic levitation compressors, and in particular, relates to a control method, a control device and a storage medium of a magnetic levitation compressor system. Background technique [0002] The magnetic suspension compressor adopts the magnetic suspension technology to control the bearing suspension, which can effectively reduce the mechanical friction, reduce the loss and noise. Before the magnetic suspension motor starts, the bearing controller controls the bearing suspension, and then the rotor is driven by the inverter to rotate at a high speed. After the magnetic levitation compressor is completely stopped, the bearing controller controls the bearing to fall. [0003] The bearing controller usually takes power from the DC bus of the inverter, and converts the obtained DC bus voltage into a working voltage suitable for the bearing controller through the switching power supply. In practical appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00F04D29/058H02J9/06
CPCF04D27/00F04D29/058H02J9/061Y02B50/00
Inventor 乔飞林怀宇冉正云刘树清
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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