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Method for speed control of single rotor compressor

A single-rotor compressor and speed control technology, which is applied in the direction of machines/engines, etc., can solve the problems of unsatisfactory speed fluctuation suppression effect and compressor speed fluctuation, and achieve the effect of improving fluctuation suppression effect, reducing fluctuation and improving effectiveness

Active Publication Date: 2021-10-29
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although there are methods to control 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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  • Method for speed control of single rotor compressor
  • Method for speed control of single rotor compressor
  • Method for speed control of single rotor compressor

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Embodiment Construction

[0031] 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.

[0032] figure 1 and figure 2 Partial flow charts of an embodiment of the method for controlling the rotational speed of a single-rotor compressor based on the present invention are respectively shown. Specifically, the rotation speed control 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 and figure 2 , while combining image 3 A control block diagram is shown, respectively describing the concrete realization of these two processes.

[0033] See fi...

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Abstract

The invention discloses a method for controlling the rotational speed of a single-rotor compressor, including the process of controlling the compressor according to the real-time angular velocity and torque; the process of controlling the compressor according to the real-time angular velocity includes: filtering the shaft error to obtain the angular velocity compensation amount Compensating the angular velocity compensation amount to the output angular velocity of the phase-locked loop regulator to obtain a compensated angular velocity output; correcting the real-time angular velocity according to the compensated angular velocity output, and controlling the compressor according to the corrected real-time angular velocity; The process of controlling the compressor according to the torque includes: calculating the difference between the target angular velocity fluctuation and the output angular velocity of the phase-locked loop regulator to obtain a first angular velocity difference; performing filtering processing on the first angular velocity difference to obtain a filtered angular velocity ; Input the filtered angular velocity to a speed loop regulator to obtain an output torque; and control the compressor according to the output torque. By applying the present invention, the effectiveness of suppressing the fluctuation of the rotational 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 controlling the speed of a compressor with a single rotor. Background technique [0002] When the single-rotor 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, which easily causes large speed fluctuations, and the compressor does not run smoothly. smooth. 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 i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C28/08
CPCF04C28/08
Inventor 史为品刘光朋赵晓明苗建徐勤耀寇秋莉沈椿云董金盛刘聚科程永甫
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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