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Air conditioner compressor rotating speed fluctuation suppression method

An air-conditioning compressor, speed fluctuation technology, applied in the direction of torque ripple control, AC motor angular single-axis angular velocity control, motor control, etc., can solve the problems of compressor speed fluctuation, speed fluctuation suppression effect is not ideal, etc., to reduce fluctuations , Improve the effect of fluctuation suppression and stability

Active Publication Date: 2019-04-30
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • 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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  • Air conditioner compressor rotating speed fluctuation suppression method
  • Air conditioner compressor rotating speed fluctuation suppression method
  • Air conditioner compressor rotating speed fluctuation suppression method

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Embodiment Construction

[0030] 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.

[0031] 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 an air conditioner compressor rotating speed fluctuation suppression method. The method includes processes 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 includes the following steps: filtering axis errors to obtain an angular velocity compensation amount;obtaining a compensated angular velocity output amount according to the angular velocity compensation amount; and correcting the real-time angular velocity according to the compensated angular velocity output amount and controlling the compressor; The process of controlling the compressor according to the moment includes the following steps: calculating a difference between a target angular velocity fluctuation amount and the compensated angular velocity output amount to obtain a first angular velocity difference; filtering the first angular velocity difference to obtain filtered angular velocity; inputting the filter angular velocity into a speed loop regulator to obtain output moment; obtaining a moment compensation amount according to the first angular velocity difference; and obtainingcompensated output moment according to the moment compensation amount and the output and controlling the compressor. The effectiveness of compressor rotating speed fluctuation suppression can be improved by applying the air conditioner compressor rotating speed fluctuation suppression method.

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 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 in sing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/10H02P23/18H02P29/50
CPCH02P6/10H02P23/183H02P29/50
Inventor 史为品苗建徐勤耀寇秋莉
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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