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

A control method and control device technology, applied in transportation and packaging, air handling equipment, heating/cooling equipment, etc., can solve the problems of increasing product cost, increasing installation complexity and difficulty, etc., to prevent excessive discharge and simplify installation and maintenance steps, cost reduction effects

Active Publication Date: 2020-08-14
GUANGZHOU HUALING REFRIGERATION EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the addition of a dedicated detection line, the cost of the produ

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 As shown, according to the embodiment of the first aspect of the present invention, a control method of an air conditioner is proposed. The air conditioner includes a battery assembly, and the battery assembly supplies power to the air conditioner through a power supply line. The control method includes:

[0056] Step 102, obtaining the input voltage and input current of the air conditioner, and the impedance of the power supply line corrected by the input current;

[0057] Step 104, determine the output voltage of the battery pack according to the input voltage, input current and impedance;

[0058] Step 106, determine the operating parameter range of the air conditioner according to the output voltage.

[0059] In this embodiment, the input voltage and input current are detected at the input end of the air conditioner, and the impedance of the power supply line corrected by the input current is obtained, and then according to Kirchhoff’s voltage law ...

Embodiment 2

[0064] Such as figure 2 As shown, according to an embodiment of the present invention, a control method of an air conditioner is proposed, the method comprising:

[0065] Step 202, acquire the input voltage and input current of the air conditioner according to the specified time interval, and determine the theoretical value of the impedance of the power supply line;

[0066] Step 204, performing a first-type correction to the impedance of the power supply line according to the input current, the theoretical value of the impedance, and the first preset coefficient;

[0067] Step 206, determining the impedance of the nth second type of correction;

[0068] Step 208, according to the impedance obtained by the first type of correction, the second preset coefficient and the impedance of the nth second type of correction, determine the impedance of the n+1th second type of correction;

[0069] Step 210, determine the output voltage of the battery pack according to the input volta...

Embodiment 3

[0083] Such as image 3 As shown, according to an embodiment of the present invention, a control method of an air conditioner is proposed, the method comprising:

[0084] Step 302, obtaining the input voltage and input current of the air conditioner, and the impedance of the power supply line corrected by the input current;

[0085] Step 304, determine the output voltage of the battery assembly according to the input voltage, input current and impedance;

[0086] Step 306, whether the output voltage at the current sampling moment is less than or equal to the output voltage at the previous sampling moment, if so, enter step 308, if not, enter step 310;

[0087] Step 308, determine that the output voltage at the current sampling moment is less than or equal to the first output voltage threshold, and control the maximum operating frequency and / or maximum operating power of the air conditioner to decrease according to the preset offset;

[0088] Step 310, determine that the outp...

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Abstract

The invention provides an air conditioner control method and device, an air conditioner and a storage medium. The method comprises the steps of acquiring an input voltage and an input current of the air conditioner and an impedance, obtained through correction of the input current, of a power supply line; determining an output voltage of a battery assembly according to the input voltage, the inputcurrent and the impedance; and determining an operation parameter range of the air conditioner according to the output voltage. By using the method of the invention, an operation parameter upper limit of the air conditioner can be accurately controlled; the battery assembly can be better protected; a permanent damage fault to a battery caused by excessive discharge of the battery assembly due toan overlarge air conditioner load when an electric quantity of the battery assembly is low is prevented; and meanwhile, the output voltage of the battery assembly is estimated by utilizing the voltageof the input end and the impedance of the power supply line so that a detection line for detecting the output voltage is not needed, cost is reduced, installation and maintenance steps are simplified, and faults caused by installation errors are reduced.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner control method, an air conditioner control device, an air conditioner and a computer-readable storage medium. Background technique [0002] The existing plug-in vehicle air conditioners are powered by batteries and have protection functions for the batteries. The battery voltage can directly reflect the battery power, so most of them use the battery voltage as the basis for protection. The current detection schemes include: [0003] 1. Check the voltage at the input terminal of the air conditioner, ignoring the line loss voltage. However, due to the long distance between the plug-in vehicle air conditioner and the battery, the power supply line is long, and there is a certain resistance. When the battery voltage is low, the air conditioner has high power, which makes the power supply current large, the line loss voltage on the wire is large, an...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60R16/033
CPCB60H1/00428B60H1/00642B60R16/033Y02T10/88
Inventor 袁光
Owner GUANGZHOU HUALING REFRIGERATION EQUIP
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