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Method for intelligently controlling frequency of variable-frequency air-conditioner

An inverter air conditioner and intelligent control technology, which is applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc. Life shortening and other problems, to reduce the probability of failure, improve the effect of use, and improve the effect of comfort

Active Publication Date: 2010-07-07
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of air-conditioning technology, inverter air conditioners have gradually entered thousands of households. At the same time, people have higher and higher requirements for the reliability and comfort of inverter air conditioners. Simple control can no longer meet the requirements of users. It cannot quickly and comprehensively adjust the operating frequency of the inverter air conditioner according to the operating conditions, room temperature, room size and other operating environments and various feedback information, resulting in the inability of the inverter air conditioner to maximize its performance and affect the inverter. The use effect of the air conditioner, even because the frequency cannot be adjusted in time according to the operating conditions, the life of the inverter air conditioner is shortened or even burned out

Method used

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  • Method for intelligently controlling frequency of variable-frequency air-conditioner
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  • Method for intelligently controlling frequency of variable-frequency air-conditioner

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0025] like figure 1 As shown, the present invention provides a kind of intelligent control method of frequency conversion air conditioner, and it is carried out according to the following sequence of steps:

[0026] Step (1), the inverter reads the temperature difference ΔT between the set temperature of the inverter air conditioner and the indoor ambient temperature, and compares it with the two set temperature differences ΔT1 and ΔT2, if ΔTΔT2, the set frequency value Ft will be calculated according to the value of ΔT; the temperature difference ΔT, when the inverter air conditioner is heating, ΔT=T1-T2, When the inverter air conditioner is in cooling operation, ΔT=T2-T1, where T1 is the set temperature of the inverter air conditioner, and T2 is the indoor ambient temperature.

[0027] like Figure 4 As shown, the X axis represents the temp...

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Abstract

The invention relates to a method for intelligently controlling the frequency of a variable-frequency air-conditioner, comprising the following steps of: (1) reading the temperature difference delta T of the set temperature of the variable-frequency air-conditioner and indoor ambient temperature and calculating a frequency value Ft according to the temperature difference by a frequency converter;(2) reading each running parameter of the variable-frequency air-conditioner and controlling the air-conditioner to stop, or limit the frequency, or reduce the frequency or normally run according to the parameter value by using the frequency converter; (3) if each parameter displays that the frequency needs to be limited, ensuring the adjusted frequency Fobj to be equal to Ft, and if each parameter displays that the frequency needs to be reduced, ensuring the Fobj to be equal to Ft-delta T; (4) if each parameter displays the normal running, adjusting the frequency Ft according to the variation of the delta T in a certain time t1; and (5) outputting the Fobj to a driver of a variable-frequency compressor of the air-conditioner by using the frequency converter. The method can improve the comfort level, the using effect and the service life of the variable-frequency air-conditioner.

Description

Technical field: [0001] The invention relates to the field of frequency conversion air conditioners, in particular to an intelligent control method for the frequency of frequency conversion air conditioners. Background technique: [0002] With the continuous development of air-conditioning technology, inverter air conditioners have gradually entered thousands of households. At the same time, people have higher and higher requirements for the reliability and comfort of inverter air conditioners. Simple control can no longer meet the requirements of users. It cannot quickly and comprehensively adjust the operating frequency of the inverter air conditioner according to the operating conditions, room temperature, room size and other operating environments and various feedback information, resulting in the inability of the inverter air conditioner to maximize its performance and affect the inverter. The use effect of the air conditioner, even because the frequency cannot be adjus...

Claims

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Application Information

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IPC IPC(8): F24F11/00
Inventor 张福成
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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