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Method of suppressing rotating speed fluctuation of air conditioner compressor

A compressor speed and fluctuation suppression technology, which is applied to machines/engines, refrigerators, heating methods, etc., can solve the problems of compressor speed fluctuations and unsatisfactory speed fluctuation suppression effects, achieve rapid suppression, improve fluctuation suppression effects, The effect of improving stability

Active Publication Date: 2019-05-07
CHONGQING HAIER AIR CONDITIONER CO LTD +2
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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 of suppressing rotating speed fluctuation of air conditioner compressor
  • Method of suppressing rotating speed fluctuation of air conditioner compressor
  • Method of suppressing rotating speed fluctuation of air conditioner compressor

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Embodiment Construction

[0029] 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.

[0030] figure 1 and figure 2 Partial flow charts of an embodiment of the method for suppressing fluctuations in rotational speed of an air conditioner compressor according to 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 two p...

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Abstract

The invention discloses a method of suppressing the rotating speed fluctuation of an air conditioner compressor. The method comprises 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 comprises the steps that an axis error is subjected to filtering treatment, so that the angular speed compensation quantity is obtained; the compensated angular speed output quantity is obtained according to the angular speed compensation quantity; and the real-time angular speed is corrected according to the compensated angular speed output quantity, and the compressor is controlled. The process of controlling the compressor according to the torque comprises the steps that thedifference between the target angular speed fluctuation quantity and the compensated angular speed output quantity is calculated, so that a first angular speed difference is obtained; the first angular speed difference is inputted into a speed loop regulator, so that the output torque is obtained; the torque compensation quantity is obtained according to the first angular speed difference; and the compensated output torque is obtained according to the torque compensation quantity and the output torque, and the compressor is controlled. By use of the method of suppressing the rotating speed fluctuation of the air conditioner compressor, the effectiveness of suppression of the rotating speed fluctuation of 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 suppressing rotation speed fluctuation of an air conditioner 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-r...

Claims

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Application Information

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IPC IPC(8): F25B49/02F24F11/86F04C28/08F04C28/28
Inventor 史为品杨晓慧李相军刘运涛
Owner CHONGQING HAIER AIR CONDITIONER CO LTD
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