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A method and device for controlling an inverter air conditioner

A frequency conversion air conditioner and control method technology, which is applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problems of prolonged time for indoor temperature to reach the set temperature, large fluctuations in indoor temperature, and inability to control indoor temperature. To achieve the set temperature and other problems, to achieve the effect of stable control and reduce fluctuations

Active Publication Date: 2018-01-26
HISENSE (GUANGDONG) AIR CONDITIONER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the indoor load is light, since the operating frequency of the compressor is small, the change in the operating frequency of the compressor brought by the incremental value of the operating frequency is relatively large, resulting in large fluctuations in the indoor temperature; When the load is heavy, since the operating frequency of the compressor is relatively high, the change in the operating frequency of the compressor caused by the incremental value of the operating frequency is relatively small, and the change in the indoor temperature is slightly insufficient, causing the indoor temperature to reach the set value. The temperature time is greatly extended or the indoor temperature cannot reach the set temperature
[0004] To sum up, in the existing technology, when the indoor load is light, the indoor temperature will fluctuate greatly, and when the indoor load is heavy, the change of the indoor temperature is slightly insufficient, resulting in the time for the indoor temperature to reach the set temperature to be greatly prolonged or the indoor The temperature cannot reach the set temperature

Method used

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  • A method and device for controlling an inverter air conditioner
  • A method and device for controlling an inverter air conditioner
  • A method and device for controlling an inverter air conditioner

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Experimental program
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Embodiment 1

[0035] An embodiment of the present invention provides a method for controlling an inverter air conditioner, such as figure 1 shown, including:

[0036] S101. The inverter air conditioner control device detects the indoor temperature according to a preset detection cycle.

[0037] S102. The variable frequency air conditioner control device acquires the temperature difference between the current indoor temperature and the set temperature and the rate of change of the indoor temperature or the variation of the indoor temperature in the previous detection cycle at the current detection time.

[0038] S103. The inverter air conditioner control device determines whether the temperature difference is smaller than a preset threshold.

[0039] If so, perform a stable control phase, the stable control phase includes steps S104-S107:

[0040] S104. The inverter air conditioner control device obtains the operating frequency of the compressor.

[0041] S105. The inverter air conditione...

Embodiment 2

[0107] An embodiment of the present invention provides an inverter air conditioner control device 70, such as Figure 7 As shown, it includes: a detection unit 701 , an acquisition unit 702 , a determination unit 703 and an execution unit 704 .

[0108] Wherein, the detection unit 701 is configured to detect the indoor temperature according to a preset detection cycle.

[0109] The acquiring unit 702 is configured to acquire the temperature difference between the current indoor temperature and the set temperature, the rate of change of the indoor temperature or the amount of change of the indoor temperature in the previous detection cycle.

[0110] A determining unit 703, configured to determine whether the absolute value of the temperature difference is smaller than a preset threshold.

[0111] The execution unit 704 is configured to execute a stabilization control phase if the determination unit 703 determines that the absolute value of the temperature difference is less th...

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Abstract

Embodiments of the present invention provide a control method and device for an inverter air conditioner, which can reduce fluctuations in the indoor temperature and achieve stable control of the indoor temperature when the indoor load is light, and can ensure that the indoor temperature can reach set temperature. The method includes: detecting the indoor temperature according to a preset detection cycle; acquiring the temperature difference between the current indoor temperature and the set temperature and the indoor temperature change rate or the variation of the indoor temperature in the previous detection cycle; if the absolute value of the temperature difference is determined to be less than Preset the threshold value and execute the stable control stage: obtain the operating frequency of the compressor, and determine the first operating frequency increment value according to the temperature difference value, the indoor temperature change rate or the indoor temperature change in the previous detection cycle and the operating frequency, The first target frequency is obtained according to the first operating frequency increment value and the operating frequency, and the compressor is controlled to operate at the first target frequency in the next detection cycle. The invention is suitable for the technical field of air conditioning.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method and device for an inverter air conditioner. Background technique [0002] The frequency conversion air conditioner adopts frequency conversion control technology to control the power supply frequency of the compressor, realizes the adjustment of the compressor speed, and relies on the speed of the compressor speed to achieve the purpose of controlling the room temperature. Inverter air conditioners can quickly reach the required temperature in a short period of time, and at the same time, the fluctuation of temperature difference is small in the state of low speed and low energy consumption, so it has the advantages of fast, energy-saving and comfortable temperature control. [0003] In the prior art, the incremental value of the operating frequency of the compressor is usually obtained according to the temperature difference between the current indoor t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/62F24F11/86F24F11/89
Inventor 王斌
Owner HISENSE (GUANGDONG) AIR CONDITIONER