Method for controlling rotating speed of single-rotor compressor

A single-rotor compressor and compressor technology, applied in the direction of machines/engines, etc., can solve the problems of compressor speed fluctuations and unsatisfactory speed fluctuation suppression effects, etc., to achieve rapid suppression, improve fluctuation suppression effects, and stable operation

Active Publication Date: 2019-03-12
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

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  • Method for controlling rotating speed of single-rotor compressor
  • Method for controlling rotating speed of single-rotor compressor
  • Method for controlling rotating speed of single-rotor compressor

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Embodiment Construction

[0032] 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.

[0033] 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.

[0034] See fi...

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Abstract

The invention discloses a method for controlling the rotating speed of a single-rotor compressor. The method comprises the process of controlling the compressor according to the real-time angular velocity and the process of controlling the compressor according to the torque, wherein the process of controlling the compressor according to the real-time angular velocity comprises the following stepsthat filtering processing is carried out on the shaft error so as to obtain the shaft error compensation amount; the shaft error compensation amount is input to a phase-locked loop adjuster so as to obtain the output angular velocity of the phase-locked loop adjuster; and the real-time angular velocity is corrected by utilizing the output angular velocity, and the compressor is controlled according to the corrected real-time angular velocity. The process of controlling the compressor according to the torque comprises the following steps that the difference between the target angular velocity fluctuation amount and the output angular velocity of the phase-locked loop adjuster is calculated so as to obtain a first angular velocity difference value; filtering processing is carried out on thefirst angular velocity difference value to obtain the filtering angular velocity; the filtering angular velocity is input to a speed loop regulator so as to obtain the output torque; and the compressor is controlled according to the output torque. By applying the method, the effectiveness of fluctuation inhibition of the rotating 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 rotational speed of a single-rotor compressor. 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 serio...

Claims

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Application Information

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Patent Type & Authority Applications(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董金盛刘聚科程永甫
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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