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Method for Compressor Speed ​​Fluctuation Suppression

A compressor speed and fluctuation suppression technology, which is applied in the direction of machines/engines, applications, refrigerators, etc., can solve the problems of compressor speed fluctuations and unsatisfactory speed fluctuation suppression effects, so as to achieve faster and more stable compressor operation , running smoothly

Active Publication Date: 2021-08-24
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 Compressor Speed ​​Fluctuation Suppression
  • Method for Compressor Speed ​​Fluctuation Suppression
  • Method for Compressor Speed ​​Fluctuation Suppression

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Embodiment Construction

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] figure 1 and figure 2 Partial flow charts of one embodiment of the method for suppressing the speed fluctuation of the compressor according to the present invention are respectively shown. Specifically, the rotational speed fluctuation suppression method in this embodiment includes two processes: one is the process of controlling the compressor according to the real-time angular velocity, and the flow chart is as follows: figure 1 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 , combined with image 3 A control block diagram is shown to describe the specific implementation of these two processes respectively.

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Abstract

The invention discloses a method for suppressing the rotation speed fluctuation of a compressor, which includes 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 the 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 the torque control compressor includes: calculating the difference between the target angular velocity fluctuation and the feedback angular velocity to obtain the first angular velocity difference; filtering the first angular velocity difference to obtain the filtered angular velocity; inputting the filtered angular velocity to The speed loop regulator obtains the output torque; and controls 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 present invention belongs to the technical field of motor control, in particular, to a compressor control technology, and more particularly, 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 itself as the load, which makes the load torque of the compressor extremely unstable, which is easy to cause large speed fluctuations, and the compressor runs erratically. The unstable operation of the compressor will lead to the unstable operation of the entire air conditioner system, resulting in a variety of adverse effects. In addition, the unstable operation will also generate large operating noise, which cannot meet the requirements of relevant noise standards and affect the comfort of the air conditioner. This phenomenon is particularly serious in s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02F24F11/86F04C28/08F04C28/28
Inventor 史为品刘运涛刘光朋李相军曹壬艳
Owner CHONGQING HAIER AIR CONDITIONER CO LTD
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