Air conditioner compressor frequency control method and device, air conditioner and storage medium

A technology of compressor frequency and control method, applied in the compressor frequency control of air conditioners, air conditioners and storage medium fields, can solve problems such as affecting user experience, user inconvenience, system protection shutdown, etc., to avoid system protection or advance frequency The effect of fluctuation and improving the user experience

Pending Publication Date: 2022-01-18
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the system adjustment is too late to respond, it will cause system protection shutdown or early frequency limit and frequency reduction, which will cause inconvenience to users and affect user experience

Method used

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  • Air conditioner compressor frequency control method and device, air conditioner and storage medium
  • Air conditioner compressor frequency control method and device, air conditioner and storage medium
  • Air conditioner compressor frequency control method and device, air conditioner and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In a specific example, see figure 1 , is a compressor frequency control method for an air conditioner, and the control method includes:

[0041] S100: In response to the start-up command, control the frequency of the compressor to increase to the first frequency platform;

[0042] S200: Detect the discharge temperature and compressor current of the air conditioner when the frequency of the compressor is at the first frequency platform;

[0043] S300: Control the frequency of the compressor according to the exhaust temperature and the current of the compressor.

[0044] In this embodiment, the air conditioner is used for cooling or heating, and the air conditioner includes a compressor, which is located outdoors and is a core component. There can be multiple frequency-up phases of the compressor, and multiple frequency-up phases can be included in one compressor. The change of compressor frequency affects the operation of the air conditioner. The control method in this...

Embodiment 2

[0048] In a specific example, see figure 2 , according to the discharge temperature and compressor current, control the frequency of the compressor, including:

[0049] S310: Subtracting the exhaust temperature from the exhaust temperature threshold to obtain a first difference;

[0050] S320: Subtract the compressor current from the compressor current threshold to obtain a second difference;

[0051] S330: Control the frequency of the compressor according to the first difference and the second difference.

[0052] In this embodiment, the discharge temperature threshold is the set value in the air conditioner, which is T f1 , similarly, the compressor current threshold is also the set value in the air conditioner, which is set to I f1 . Exhaust temperature threshold T f1 and the compressor current threshold I f1 It is determined based on the data combined with the experience value during the development of the air conditioner unit. The first difference is: ΔT=T P1 -T ...

Embodiment 3

[0055] In a specific example, see image 3 , according to the first difference and the second difference, control the frequency of the compressor, including:

[0056] S331: When the first difference is greater than or equal to the first threshold, and / or the second difference is greater than or equal to the second threshold, control the frequency of the compressor to maintain the first frequency platform.

[0057] In this embodiment, there is a first threshold T a and the second threshold I a As the comparison value, it is compared with the first difference value and the second difference value respectively. When one of the first difference ΔT and the second difference ΔI is greater than or equal to the corresponding comparison value: the first threshold and the second threshold, it means that the frequency of the compressor is too high and it is not appropriate to increase the frequency. The first threshold and the second threshold are constants, which are generally relate...

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Abstract

The invention provides an air conditioner compressor frequency control method and device, an air conditioner and a storage medium. The compressor frequency control method comprises the steps that in response to a starting instruction, a compressor frequency is controlled to rise to a first frequency platform; under the condition that the compressor frequency is located on the first frequency platform, an exhaust temperature and a compressor current of the air conditioner are detected; and the compressor frequency is controlled according to the exhaust temperature and the compressor current. According to the method, the technical problem that a compressor suddenly jumps or stops due to the poor outer ring load state in the compressor frequency increasing stage is solved, and the technical effects that the compressor frequency is controlled, and it is guaranteed that the compressor will not jump are achieved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a compressor frequency control method and device for an air conditioner, an air conditioner and a storage medium. Background technique [0002] In the existing air conditioning system, the frequency of the compressor is evenly increased in stages during the start-up stage of the unit, and the exhaust gas of the system and the current of the compressor will also increase with the increase of the frequency of the compressor. However, in actual use, the environmental load of the compressor at startup will affect the discharge temperature and compressor current. When the environmental load is poor, such as high temperature weather, as the frequency of the compressor increases, the discharge temperature and current will rise sharply. When the system adjustment is too late to respond, it will cause system protection shutdown or early frequency limit and frequency reduction, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/32F24F11/64F24F11/86F24F11/88F24F140/20
CPCF24F11/32F24F11/64F24F11/86F24F11/88F24F2140/20
Inventor 杨巨沁张新明王成周涯宸
Owner NINGBO AUX ELECTRIC
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