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 problems such as unsatisfactory speed fluctuation suppression effect and compressor speed fluctuation, and achieve the effect of improving fluctuation suppression effect, reducing fluctuation, and improving stability

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 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 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

[0030] 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.

[0031] figure 1 with 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 with figure 2 , while combining image 3 A control block diagram is shown, respectively describing the concrete realization of these two processes.

[0032] See ...

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Abstract

The invention discloses a method for controlling the rotating speed of a single-rotor compressor. The method includes the processes of controlling the compressor according to the real-time angular speed and the torque. The process of controlling the compressor according to the real-time angular speed includes the steps that the axis error is filtered, and an angular speed compensation dosage is obtained; the angular speed compensation dosage is compensated into the output angular speed of a phase-locked loop adjuster, and the compensated angular speed output quantity is obtained; and the real-time angular speed is corrected according to the compensated angular speed output quantity, and the compressor is controlled according to the corrected real-time angular speed. The process of controlling the compressor according to the torque includes the steps that the difference between the target angular speed fluctuation quantity and the compensated angular speed output quantity is calculated,and a first angular speed difference value is obtained; the first angular speed difference value is filtered, and the filtered angular speed is obtained; the filtered angular speed is input in a speed loop adjuster, and the output torque is obtained; and the compressor is controlled according to the output torque. By means of the method, the effectiveness of rotating speed fluctuation suppressionof the compressor can be improved.

Description

technical field [0001] The invention belongs to the technical field of motor control, in particular 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 seri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C28/08
CPCF04C28/08
Inventor 史为品徐勤耀刘光朋苗建姚永祥许国景张新吕兴宇刘金龙董金盛刘聚科程永甫
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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