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Method and device for preventing out-of-step of compressor and compressor

A technology of compressor and protection strategy, applied in the field of compressor control, can solve the problem of incapable of compressor out-of-step state protection, and achieve the effect of protecting safe and reliable operation and avoiding out-of-step

Pending Publication Date: 2022-05-13
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] It can be seen that the existing technology can only monitor whether the compressor is in an out-of-step state, but cannot protect the out-of-step state of the compressor

Method used

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  • Method and device for preventing out-of-step of compressor and compressor
  • Method and device for preventing out-of-step of compressor and compressor
  • Method and device for preventing out-of-step of compressor and compressor

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Embodiment Construction

[0025] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

[0026] The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used...

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Abstract

The invention relates to the technical field of compressor control, and discloses a method for preventing a compressor from being out of step, which comprises the following steps: in response to a starting instruction, obtaining operation parameters of the compressor in each operation stage; under the condition that the operation parameters of all the operation stages meet the out-of-step condition, the compressor is controlled to execute protection strategies of all the stages; wherein the operation stage comprises a starting stage, a frequency raising stage and a stabilizing stage. According to the scheme, after the compressor is started, whether the compressor reaches the out-of-step limit in each operation stage or not can be judged according to the operation parameters of the compressor in each operation stage, and then the corresponding compressor protection strategy is executed under the condition that the compressor reaches the out-of-step limit, so that out-of-step of the compressor is effectively avoided, and the reliability of the compressor is improved. Safe and reliable operation of the air conditioner is protected. The invention further discloses a device for preventing the compressor from being out of step and the compressor.

Description

technical field [0001] The present application relates to the technical field of compressor control, for example, to a method, a device and a compressor for preventing out-of-step of a compressor. Background technique [0002] At present, with the continuous development of the air-conditioning industry, all kinds of air-conditioners have entered thousands of households. On the basis of constant pursuit of appearance and functions, users pay more attention to the service life of air-conditioners; and compressors are the core components of air-conditioners. Its service life directly affects the life of the air conditioner. Taking single-rotor compressors as an example, single-rotor compressors are widely used in air-conditioning products due to their advantages such as small size, low price, and good stability. However, single-rotor compressors often have out-of-step failures due to unstable control output current, system pressure fluctuations, and compressor wear and tear, r...

Claims

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Application Information

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IPC IPC(8): F24F11/49F24F11/64F24F11/61F24F11/70
CPCF24F11/49F24F11/64F24F11/61F24F11/70
Inventor 苏乐安超李兴兵
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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