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Method for Controlling Speed ​​Fluctuation of Air Conditioning Compressor

A technology for air-conditioning compressors and speed fluctuations, which is applied to the control of motor vibration, the control of AC motor angular single-axis angular velocity, the estimation/correction of motor parameters, etc. problem, to achieve the effect of reducing fluctuation, improving fluctuation suppression effect, and rapid suppression

Active Publication Date: 2021-11-23
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 Conditioning 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 with figure 2 Partial flow charts of an embodiment of the method for controlling the rotational speed fluctuation of an air conditioner compressor 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 with figure 2 , while combining image 3 A control block diagram is shown, respectively describing the concrete realization of these two pro...

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Abstract

The invention discloses a method for controlling the rotational speed fluctuation of an air-conditioning compressor, including the process of controlling the compressor according to the real-time angular velocity and torque; controlling the compressor according to the real-time angular velocity includes: filtering the shaft error to obtain the angular velocity compensation; The angular velocity compensation amount obtains the compensated angular velocity output; corrects the real-time angular velocity and controls the compressor according to the compensated angular velocity output; and controls the compressor according to the torque including: calculating the difference between the target angular velocity fluctuation and the feedback angular velocity to obtain the first angular velocity difference; filter the first angular velocity difference to obtain a filtered angular velocity; input the filtered angular velocity to a speed loop regulator to obtain an output torque; obtain a torque compensation amount according to the first angular velocity difference; according to the 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, and in particular relates to a compressor control technology, and more specifically, relates to a method for controlling rotation speed fluctuations 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, 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P23/04H02P23/14H02P23/18
Inventor 史为品张海群李昶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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