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Method for suppressing speed fluctuation of air conditioner compressor

An air-conditioning compressor and speed fluctuation technology, which is applied in the direction of motor generator control, electromechanical brake control, electromechanical transmission device control, etc., can solve the problems of unsatisfactory speed fluctuation suppression effect and compressor speed fluctuation, so as to reduce fluctuation, fast Inhibition, smooth running effect

Active Publication Date: 2019-05-03
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.

Method used

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  • Method for suppressing speed fluctuation of air conditioner compressor
  • Method for suppressing speed fluctuation of air conditioner compressor
  • Method for suppressing speed fluctuation of air conditioner compressor

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Embodiment Construction

[0025] 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.

[0026] figure 1 and figure 2 Partial flow charts of an embodiment of the method for suppressing the fluctuation of the rotational speed of the air conditioner 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 and figure 2 , while combining image 3 A control block diagram is shown, respectively describing the concrete realization of these t...

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Abstract

The invention discloses a method for suppressing the speed fluctuation of an air conditioner compressor, comprising processes of controlling the compressor according to the real-time angular velocityand the torque. The process of controlling the compressor according to the real-time angular velocity comprises: filtering an axial error to obtain an angular velocity compensation amount; obtaining acompensated angular velocity output according to the angular velocity compensation amount; correcting the real-time angular velocity and controlling the compressor according to the compensated angular velocity output. The process of controlling the compressor according to the torque includes: calculating a difference between a target angular velocity fluctuation amount and a feedback angular velocity to obtain a first angular velocity difference; filtering the first angular velocity difference to obtain a filtered angular velocity; inputting the filtered angular velocity into a speed loop regulator to obtain an output torque; obtaining a torque compensation amount according to the first angular velocity difference; and obtaining the compensated output torque and controlling the compressor according to the torque compensation amount and the output torque. The method can improve the effectiveness of suppressing the speed fluctuation of the compressor.

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 rotation speed fluctuations of air conditioner compressors. 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, which easily causes large speed fluctuations and the compressor does not run smoothly. The unstable operation of the compressor will lead to unstable operation of the entire air conditioning 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-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/05
Inventor 史为品刘运涛李相军董金盛刘聚科程永甫
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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