Method for Controlling Speed ​​Fluctuation of Air Conditioner Compressor

A compressor speed and compressor technology, which is applied in the direction of refrigerators, machines/engines, heating and ventilation control systems, etc., can solve the problems of compressor speed fluctuations and unsatisfactory suppression of speed fluctuations, and achieve direct and improved speed fluctuations. Fluctuation suppression effect, fast suppression effect

Active Publication Date: 2021-09-21
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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.

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  • Method for Controlling Speed ​​Fluctuation of Air Conditioner Compressor

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Embodiment Construction

[0028] 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.

[0029] figure 1 and figure 2 Partial flow charts of an embodiment of the method for controlling the fluctuation of the rotational speed of the compressor of the air conditioner based on the present invention are respectively shown. Specifically, the method for speed fluctuation control 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 ...

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Abstract

The invention discloses a method for controlling the rotation speed fluctuation of an air conditioner compressor, including 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 angular velocity compensation Obtain the compensated angular velocity output according to the angular velocity compensation amount; correct the real-time angular velocity and control the compressor according to the compensated angular velocity output; the process of controlling the compressor according to the torque includes: calculating the difference between the target angular velocity fluctuation and the feedback angular velocity difference, to obtain the first angular velocity difference; input the first angular velocity difference to the speed loop regulator to obtain the output torque; obtain the torque compensation amount according to the first angular velocity difference; according to the torque compensation amount and the output torque Obtain the compensated output torque and control the compressor. 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 invention belongs to the technical field of motor control, specifically relates to compressor control technology, and more specifically relates to a method for controlling the fluctuation of the rotational speed 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...

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 史为品杨晓慧李相军刘运涛
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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