Air Conditioning System

An air-conditioning system and corresponding relationship technology, applied in heating and ventilation control systems, heating and ventilation safety systems, high-efficiency adjustment technology, etc., can solve problems such as low precision, complicated test schemes, and numerous test devices, so as to improve detection accuracy, The Effect of Simplifying Test Complexity

Active Publication Date: 2022-07-08
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems that the online energy consumption monitoring of the compressor inverter in the prior art needs to set multiple measuring points to collect parameters, resulting in a large number of test devices, complicated test schemes, and low precision due to the introduction of many errors, the present invention provides a An air-conditioning system, which calculates the efficiency of the frequency converter according to the torque and operating frequency of the compressor, without the need to set external test devices, which simplifies the test complexity and improves the detection accuracy of the frequency converter efficiency

Method used

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Embodiment 1

[0060] The air conditioning system of the present embodiment executes the refrigeration cycle of the air conditioner by controlling the compressor, the condenser, the expansion valve and the evaporator through the processor module. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to air that has been conditioned and heat-exchanged.

[0061] The compressor compresses the refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0062] The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evapora...

Embodiment 2

[0136] The air conditioning system of this embodiment can also output the apparent power S by 2i Calculate the input power of the inverter by means of Image 6 As shown, the processor module of this embodiment is configured as:

[0137] Obtain the current operating frequency of the compressor and the current torque of the compressor respectively;

[0138] Calculate the efficiency α of the inverter based on the current operating frequency and the current torque 0 ;

[0139] Obtain the apparent power S of the output side of the inverter 2i ;

[0140] Obtain the output side power factor F of the inverter 2i ;

[0141] Calculate the input power P of the inverter r :

[0142] P r =S 2i *F 2i / α 0 .

[0143] S 2i Calculated by the inverter output, α 0 It can be obtained by the solution described in Embodiment 1, which is not repeated here. F 2i is the output power factor of the inverter, which can be obtained directly from the inverter.

[0144] In the air-conditio...

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Abstract

The invention discloses an air-conditioning system, comprising a compressor and a frequency converter, and further comprising: a processor module, which is configured to: respectively acquire the current operating frequency of the compressor and the current torque of the compressor; The current torque calculates the efficiency of the inverter. The air conditioning system of the present invention calculates the efficiency of the frequency converter according to the torque of the compressor and the operating frequency. The operating frequency is a control output parameter, which is easy to obtain, and no additional detection device is required, which simplifies the test complexity, and does not The detection device introduces a test error, which improves the detection accuracy of the efficiency of the frequency converter.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to an air conditioning system with an online power consumption detection function. Background technique [0002] The basis of the application of intelligent control technology and Internet technology in the air conditioning system is the online real-time monitoring of its performance. Through the analysis of the actual operation performance test data, the deficiencies in the actual operation process of the product are found, the main factors leading to the poor performance of the unit are identified, and the direction for the optimal design of product structure and control strategy is pointed out, and the actual operation of the product can be realized. . [0003] One of the important indicators of online performance monitoring is energy consumption, and the energy consumption of the compressor and its inverter accounts for about 85% of the energy consumption of the en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/54F24F11/86F24F140/50F24F140/60
CPCF24F11/54F24F11/86F24F2140/50F24F2140/60Y02B30/70
Inventor 石靖峰曹法立陈强石磊路海滨
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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