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Methods of suppressing compressor speed fluctuations

A compressor speed, compressor technology, applied in the direction of machine/engine, pump control, mechanical equipment, etc., can solve the problems of compressor speed fluctuation, the effect of suppressing speed fluctuation is not ideal, etc., to reduce speed fluctuation and compressor operation stably , the effect of reducing cyclical fluctuations

Active Publication Date: 2021-03-16
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although there are methods for controlling the speed of the compressor in the prior art, the effect of suppressing the fluctuation of the speed is not ideal, and the problem of the fluctuation of the speed of the compressor cannot be fundamentally solved.

Method used

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  • Methods of suppressing compressor speed fluctuations
  • Methods of suppressing compressor speed fluctuations
  • Methods of suppressing compressor speed fluctuations

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] figure 1 with figure 2 Partial flow charts of an embodiment of the method for suppressing the fluctuation of the rotational speed of the compressor based on the present invention are respectively shown. Specifically, the speed fluctuation suppression method of this embodiment includes two processes: one is the process of controlling the compressor according to the real-time angular velocity, the flow chart is as follows figure 1 Shown; one is the process of controlling the compressor according to the torque, the flow chart is as follows figure 2 shown. The following is based on figure 1 with figure 2 , while combining image 3 A control block diagram is shown, respectively describing the concrete realization of these two processes. ...

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Abstract

The invention discloses a method for suppressing fluctuation of the rotation speed of a compressor. The method comprises the process of controlling the compressor according to the real-time angular speed and the process of controlling the compressor according to the moment. The process of controlling the compressor according to the real-time angular speed comprises the steps that filtering processing is carried out on axis errors, and the axis error compensation quantity is obtained; the axis error compensation quantity is input into a phase-locked loop adjuster, and the output angular speed of the phase-locked loop adjuster is obtained; and the real-time angular speed is corrected through the output angular speed, and the compressor is controlled according to the corrected real-time angular speed. The process of controlling the compressor according to the moment comprises the steps that the difference between the target angular speed fluctuation quantity and the output angular speed of the phase-locked loop adjuster is calculated, and a first angular speed difference value is obtained; the first angular speed difference value is subjected to filtering processing, and a filtering angular speed is obtained; the filtering angular speed is input into a speed loop adjuster, and the output moment is obtained; and the compressor is controlled according to the output moment. By meansof the method, effectiveness of suppressing fluctuation of the rotation speed of the compressor can be improved.

Description

technical field [0001] The invention belongs to the technical field of motor control, specifically relates to compressor control technology, and more specifically relates to a method for suppressing fluctuations in the rotational speed of a compressor. Background technique [0002] When the compressor used in the air conditioner is running, it is affected by the working principle and control technology of the air conditioner as a load, which makes the load torque of the compressor extremely unstable, easily causing large speed fluctuations, and the compressor is not running smoothly. The unstable operation of the compressor will lead to unstable operation of the entire air conditioner system, causing various adverse effects. Moreover, the unstable operation will also generate relatively large operating noise, which cannot meet the requirements of relevant noise standards and affect the comfort of the air conditioner. This phenomenon is especially serious in single-rotor com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C28/08F04C28/28
CPCF04C28/08F04C28/28F04C2270/0525
Inventor 史为品刘运涛刘光朋李相军曹壬艳董晓莉
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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