Software control method for automatically compensating air volume of air conditioner

An automatic compensation and software-controlled technology, applied in heating and ventilation control systems, space heating and ventilation, heating methods, etc., can solve the problems of reduced cooling and heating capacity, gaps in standard air volume, etc.

Inactive Publication Date: 2016-05-25
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the deficiencies of the prior art, and provides a software control method for automatic compensation of the air volume of the air conditioner, hoping to solve the problem of the difference between the air volume of the indoor unit and the standard air volume, which causes the cooling and heating capacity to decrease

Method used

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  • Software control method for automatically compensating air volume of air conditioner
  • Software control method for automatically compensating air volume of air conditioner
  • Software control method for automatically compensating air volume of air conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0042] After the air conditioner is installed and used, it monitors the shaft power P of the fan in real time every time it is turned on and converts the real-time air volume Q of the fan. 0 ≤85% of the cases, continue to use the air conditioner, and found that Q / Q appeared 5 times out of 6 times 0 ≤85% of the situation, the latest power-on, real-time air volume Q and Q 0 Compared with the air volume reduced by 15%, in order to increase the air volume to the standard air volume Q 0 , it is necessary to compensate the actual air volume to reach the standard air volume Q by adjusting the fan speed regulation voltage square wave duty cycle 0 .

[0043] Using the direct compensation method:

[0044] This compensation requires that the air volume after compensation reaches the standard air volume Q 0 , the duty cycle is adjusted from Y to Y1, then

[0045] Y 1 / Y = R ...

Embodiment 2

[0047] During the use of the air conditioner, the situation described in Embodiment 1 is monitored. This embodiment does not use the direct compensation method, but the adjustment compensation method:

[0048] First adjustment: set Q 1 Regulated to 0.90Q 0 , Calculate the fan speed regulation voltage square wave duty cycle after the first adjustment

[0049] For the second adjustment, the Q 2 Regulated to 0.95Q 0 , Calculate the fan speed regulation voltage square wave duty cycle after the second adjustment

[0050] The third adjustment, adjust Q3 to Q0, Calculate the fan speed regulation voltage square wave duty cycle after the third adjustment Y 3 = ( 1 / 0.95 ) 3 2 * Y 2 .

Embodiment 3

[0052] After the air conditioner is installed and used, it monitors the shaft power P of the fan in real time every time it is turned on and converts the real-time air volume Q of the fan. 0 ≤85% of the cases, continue to use the air conditioner, and found that Q / Q appeared 5 times out of 6 times 0 ≤85% of the situation, the latest power-on, real-time air volume Q and Q 0 Compared with the air volume reduced by 20%, in order to increase the air volume to the standard air volume Q 0 , it is necessary to compensate the actual air volume to reach the standard air volume Q by adjusting the fan speed regulation voltage square wave duty cycle 0 .

[0053] Using the direct compensation method:

[0054] This compensation requires that the air volume after compensation reaches the standard air volume Q 0 , the duty cycle is adjusted from Y to Y1, then according to the formula Y 1 / Y = ...

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Abstract

The invention discloses a software control method for automatically compensating the air volume of an air conditioner, and relates to a method for compensating the air volume through motor parameter detection under the situation that the air volume of an indoor unit is decreased. The method comprises the steps that standard parameters such as Rt and Q0 of the air conditioner are stored in an EEPROM, whenever the air conditioner is started, the fan shaft power P is monitored in real time, the real-time air volume Q of a fan is calculated, when Q/Q0 is smaller than or equal to 85%, the air volume is compensated to the standard air volume from the current air volume at a time through a direct compensation method, and according to a fan law, the fan speed regulation voltage square wave duty ratios before and after compensation are calculated through the proportions of the air volumes before and after compensation; or an adjusted compensation method is adopted to compensate the current air volume to the standard air volume for multiple times, and according to a fan law, the fan speed regulation voltage square wave duty ratios before and after compensation are calculated through the proportions of the air volumes before and after compensation; on the basis that the hardware cost is not increased, compensation is conducted on the air volume by regulating the fan speed regulation voltage square wave duty ratio, the stability of the air volume is guaranteed, and the operation effect and stability of the air conditioner are improved.

Description

technical field [0001] Embodiments of the present invention relate to a method for controlling air volume of an air conditioner, and more specifically, embodiments of the present invention relate to a software control method for automatic compensation of air volume of an air conditioner. Background technique [0002] At present, air conditioners will be tested for performance before they leave the factory. The motor scheme with fixed speed for each gear is generally used in the industry. When the wind speed is fixed, the cooling capacity and heating capacity have a certain standard range. When the air conditioner is used by the user, due to the improper installation position or the clogged filter screen after long-term use, the fan speed remains unchanged, but the air volume will decrease, resulting in a decrease in cooling and heating capacity. Contents of the invention [0003] The invention overcomes the deficiencies of the prior art, and provides a software control met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/59F24F11/62F24F11/64F24F11/77Y02B30/70
Inventor 普江朋赵凌峰
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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