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Method for controlling rotational speed of compressor of air conditioner

An air-conditioning compressor and speed control technology, which is applied to heating and ventilation control systems, refrigerators, heating methods, etc., can solve the problems of compressor speed fluctuations and unsatisfactory speed fluctuation suppression effects, etc., to reduce fluctuations, quickly suppress, The effect of increasing effectiveness

Active Publication Date: 2019-05-07
CHONGQING HAIER AIR CONDITIONER CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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  • Method for controlling rotational speed of compressor of air conditioner
  • Method for controlling rotational speed of compressor of air conditioner
  • Method for controlling rotational speed of compressor of air conditioner

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Embodiment Construction

[0025] 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.

[0026] figure 1 and figure 2 Partial flowcharts of an embodiment of the method for controlling the rotational speed of an air conditioner compressor based on the present invention are respectively shown. Specifically, the rotation speed control 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 processes.

[0027] See ...

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Abstract

The invention discloses a method for controlling rotational speed of a compressor of an air conditioner. The method comprises the process of controlling the compressor according to real-time angular velocity and moment. The process of controlling the compressor according to the real-time angular velocity comprises the following steps of: performing filtering treatment on axis errors, so as to obtain an angular velocity compensation quantity; according to the angular velocity compensation quantity, obtaining a compensated angular velocity output quantity; and according to the compensated angular velocity output quantity, and amending the real-time angular velocity, and controlling the compressor. The process of controlling the compressor according to moment comprises the following steps of:calculating the difference between a target angular velocity fluctuation quantity and a compensated angular velocity output quantity, so as to obtain a first angular velocity difference value; performing filtering treatment on the first angular velocity difference value, so as to obtain a filtering angular velocity; inputting the filtering angular velocity to a speed ring regulator, so as to obtain an output moment; according to the first angular velocity difference value, obtaining the moment compensation quantity; and according to the moment compensation quantity and the output moment, obtaining the compensated output moment and controlling the compressor. Through the adoption of the method disclosed by the invention, the restraining validity of the rotational speed fluctuation 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 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, 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 single-rotor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F24F11/86F04C28/08F04C28/28
Inventor 史为品刘光朋刘运涛李相军
Owner CHONGQING HAIER AIR CONDITIONER CO LTD
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