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Method for inhibiting rotation speed fluctuation of compressor

A compressor speed, compressor technology, applied in refrigerators, machines/engines, applications, etc., can solve the problems of compressor speed fluctuations, speed fluctuation suppression effects are not ideal, etc., to reduce speed fluctuations, compressor operation is stable, The effect of increasing effectiveness

Active Publication Date: 2019-05-07
CHONGQING HAIER AIR CONDITIONER CO LTD +2
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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.

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  • Method for inhibiting rotation speed fluctuation of compressor
  • Method for inhibiting rotation speed fluctuation of compressor
  • Method for inhibiting rotation speed fluctuation of compressor

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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 and 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 method for suppressing rotational speed fluctuations in 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 inhibiting rotation speed fluctuation of a compressor, comprising a process of controlling a compressor according to real-time angular velocity and moment; the process of controlling the compressor according to the real-time angular velocity comprises the following steps of: conducting filtering treatment to an axial error to obtain angular velocity compensation; compensating the angular velocity compensation to the output angular velocity of a phase-locked loop regulator to obtain the compensated angular velocity output amount; 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 moment the following steps of: calculating the difference between the target angular velocity fluctuation amount and the feedback angular velocity amount to obtain a first angular velocity difference value; conducting the filtering treatment to the first angular velocity difference value to obtain a filtered angular velocity; inputting the filtered angular velocity to a speed loop regulator to obtain an output moment; and controlling the compressor according to the output moment. The application of the invention can improve the effectiveness of inhibiting the rotation 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 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 Applications(China)
IPC IPC(8): F25B49/02F24F11/86F04C28/08F04C28/28
Inventor 史为品刘玮玮刘运涛董金盛吕兴宇
Owner CHONGQING HAIER AIR CONDITIONER CO LTD
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