Air conditioner energy efficiency test system, air conditioner energy efficiency test method and device

Abstract

This invention discloses an air conditioner energy efficiency testing system, method, and apparatus. The method includes: incorporating building heat load metering technology into an existing test bench to measure the building heat load of the test room; and incorporating dynamic temperature control technology into the existing test bench to dynamically adjust the indoor operating conditions based on the real-time room heat load and the real-time cooling / heating capacity of the air conditioner; during the test, the dynamic energy efficiency test results of the air conditioner are sequentially tested under various set target test conditions; if the convergence condition is met during the test, the dynamic energy efficiency test result of the air conditioner is output; otherwise, the air conditioner is controlled to enter the full-load test stage, and the dynamic energy efficiency test result of the air conditioner in this stage is output after the test is completed. This invention solves the technical problem in related technologies where the enthalpy difference method test bench cannot test the dynamic energy efficiency and performance parameters of air conditioners, and cannot reflect the actual operating performance level of the air conditioner.

Description

Technical Field

[0001] This invention relates to the field of home appliance control technology, and more specifically, to an air conditioner energy efficiency testing system, an air conditioner energy efficiency testing method, and an apparatus. Background Technology

[0002] Currently, the common method for evaluating the energy efficiency of air source heat pump air conditioners is to measure their performance and energy efficiency parameters under fixed inner and outer loop operating conditions. In this method, the operating parameters of the actuators (such as compressors, fans, and throttling components) are fixed throughout the test. However, the fixed inner loop test cannot reflect the actual energy-saving level. This is because air conditioners rarely operate in a fixed environment during actual operation, leading to a significant difference between the actual operating energy efficiency and the tested parameters. Furthermore, compared to the fixed inner loop test, dynamic energy efficiency is reduced by 21.7%.

[0003] Regarding the issue that the enthalpy difference method test bench in the aforementioned related technologies cannot test the dynamic energy efficiency and performance parameters of air conditioners, and cannot reflect the actual performance level of air conditioners during operation, no effective solution has yet been proposed. Summary of the Invention

[0004] This invention provides an air conditioner energy efficiency testing system, an air conditioner energy efficiency testing method, and an apparatus, to at least solve the technical problem in related technologies that the enthalpy difference method test bench cannot test the dynamic energy efficiency and performance parameters of air conditioners, and cannot reflect the actual operating performance level of air conditioners.

[0005] According to one aspect of the present invention, an air conditioner energy efficiency testing system is provided, comprising: a test bench data acquisition module, disposed in the test bench and communicating with the test bench operating condition control module, for acquiring indoor environmental parameters, outdoor environmental parameters and operating parameters of the air conditioner under test at the current moment, wherein the test bench is a platform for performing energy efficiency testing on the air conditioner under test, the indoor environmental parameters include at least: indoor dry-bulb temperature, indoor wet-bulb temperature and indoor real-time dehumidification capacity, the outdoor environmental parameters include at least: outdoor dry-bulb temperature and outdoor wet-bulb temperature, and the operating parameters include at least: power, dehumidification capacity, cooling capacity and heating capacity; a building heat load metering module, for acquiring heat load information of the test bench and determining the building heat load of the test bench based on the heat load information, wherein the heat load information includes at least: indoor and outdoor temperature difference heat conduction load of the room where the test bench is located, solar radiation heat load of the room, outdoor air infiltration heat load of the room and equipment / human heat generation load in the room; and a dynamic temperature control adjustment module, for receiving the building heat load and indoor environmental parameters, and determining the building heat load of the test bench based on the indoor and outdoor temperature difference heat conduction load of the room, the outdoor air infiltration heat load of the room and equipment / human heat generation load of the room; and a dynamic temperature control adjustment module, for receiving the building heat load and indoor environmental parameters, and determining the building heat load of the test bench based on the indoor and outdoor temperature difference heat conduction load of the room, the outdoor air infiltration heat load of the room and equipment / human heat generation load of the room; and a dynamic temperature control adjustment module, for receiving the building heat load and indoor environmental parameters, and determining the building heat load of the test bench based on the outdoor and outdoor temperature differences heat conduction load of the test bench and the outdoor air infiltration heat load of the room. After determining the environmental parameters, the real-time cooling / heating capacity, and the real-time dehumidification capacity of the air conditioner under test, the target indoor dry-bulb temperature and target indoor wet-bulb temperature for the next moment are determined based on the building heat load, the indoor environmental parameters, the real-time cooling / heating capacity, and the real-time dehumidification capacity of the air conditioner under test. The test bench operating condition control module, before test startup, is used to adjust and maintain the outdoor and indoor initial environmental conditions to the target test conditions, and at test startup, it is used to adjust the indoor dry-bulb temperature of the test bench to the next... The system measures the target dry-bulb temperature of the indoor air at a given time and adjusts the wet-bulb temperature of the indoor air on the test bench to the target wet-bulb temperature of the indoor air at the next time. The dynamic energy efficiency metering module is used to output the dynamic energy efficiency test result of the air conditioner under test when it is determined that the air conditioner under test meets the convergence condition in the current test condition, and to control the air conditioner under test to enter the full-load test phase when the air conditioner under test does not meet the convergence condition in the current test condition. After the full-load test phase is completed, the module outputs the dynamic energy efficiency test result of the air conditioner under test in the full-load test phase.

[0006] Optionally, the air conditioner energy efficiency testing system further includes: a test bench air box, connected to the inlet / outlet of the heat exchanger of the air conditioner under test, for acquiring at least the following information from the inlet / outlet of the heat exchanger: dry bulb temperature, wet bulb temperature, dehumidification capacity, operating power of the air conditioner under test, and cooling / heating capacity of the air conditioner under test.

[0007] According to one aspect of the present invention, an energy efficiency testing method for an air conditioner is provided, applied to the air conditioner energy efficiency testing system described above, comprising: when it is determined that the test bench meets the tolerance conditions for test start-up, acquiring the heat load information of the test bench, and determining the building heat load of the test bench based on the heat load information using the building heat load metering module; acquiring the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test at the current moment through the test bench data acquisition module; determining the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment using the dynamic temperature control adjustment module based on the building heat load, the indoor environmental parameters, the outdoor environmental parameters, and the operating parameters, and sending the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment to the test bench operating condition control module. The test bench operating condition control module adjusts the indoor dry-bulb temperature of the test bench to the target indoor dry-bulb temperature at the next moment, and adjusts the indoor wet-bulb temperature of the test bench to the target indoor wet-bulb temperature at the next moment. During the operation of the air conditioner under test according to the target command, it is determined whether the air conditioner under test meets the convergence condition, and a determination result is obtained. When the determination result indicates that the air conditioner under test meets the convergence condition in the current test condition, the dynamic energy efficiency test result of the air conditioner under test is output through the dynamic energy efficiency metering module. When the determination result indicates that the air conditioner under test does not meet the convergence condition in the current test condition, the air conditioner under test is controlled to enter the full-load test phase. After the full-load test phase is completed, the dynamic energy efficiency test result of the air conditioner under test in the full-load test phase is output.

[0008] Optionally, when the test bench meets the tolerance conditions for test start-up, the test bench controls the air conditioner under test to start and operate. The air conditioner under test operates according to the target instruction, including: in cooling mode, setting the operating temperature of the air conditioner under test to a first preferred target set temperature and controlling the air conditioner under test to continuously operate at the first preferred target set temperature; simultaneously, setting the indoor fan speed of the air conditioner under test to the first preferred target speed and controlling the air conditioner under test to continuously operate at the first preferred target speed; the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test; in heating mode, setting the operating temperature of the air conditioner under test to a second preferred target set temperature and controlling the air conditioner under test to continuously operate at the second preferred target set temperature; simultaneously, setting the indoor fan speed of the air conditioner under test to the second preferred target speed and controlling the air conditioner under test to continuously operate at the second preferred target speed; the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test.

[0009] Optionally, acquiring the heat load information of the test bench and determining the building heat load of the test bench based on the heat load information using the building heat load metering module includes: using the building heat load metering module to calculate the total heat of the building indoor-outdoor temperature difference heat conduction load, the solar radiation heat load, the outdoor air infiltration heat load, and the equipment / human body heat generation load in the heat load information; and determining the total heat as the building heat load.

[0010] Optionally, the dynamic temperature control module determines the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment based on the building heat load, the indoor environmental parameters, the outdoor environmental parameters, and the operating parameters. This includes: after the test bench operating condition control module detects that the air conditioner under test has entered the testing phase, the dynamic temperature control module acquires the building heat load calculated by the building heat load metering module, the indoor environmental parameters collected by the test bench data acquisition module, the outdoor environmental parameters, and the operating parameters; and the dynamic temperature control module calculates the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment based on the building heat load, the indoor environmental parameters, the outdoor environmental parameters, and the operating parameters.

[0011] Optionally, determining whether the tested air conditioner meets the convergence condition and obtaining the determination result includes: acquiring the first cumulative running time of the tested air conditioner; when the first cumulative running time is greater than a first predetermined time, acquiring the real-time indoor wet-bulb temperature and the real-time indoor dry-bulb temperature; when the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is within a first predetermined temperature difference range, and the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is within a second predetermined temperature difference range, determining that the tested air conditioner meets the convergence condition; when the first cumulative running time is greater than the first predetermined time, if the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is not within the first predetermined temperature difference range, or if the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is not within the second predetermined temperature difference range, determining that the tested air conditioner does not meet the convergence condition.

[0012] Optionally, the energy efficiency testing method for the air conditioner further includes: when it is determined that the first cumulative running time is not greater than the first predetermined time, continuing to adjust the indoor target dry-bulb temperature and the indoor target wet-bulb temperature until the temperature difference between the indoor real-time wet-bulb temperature and the indoor target wet-bulb temperature is within the first predetermined temperature difference range, and the temperature difference between the indoor real-time dry-bulb temperature and the indoor target dry-bulb temperature is within the second predetermined temperature difference range.

[0013] Optionally, controlling the air conditioner under test to enter the full-load test phase includes: controlling the air conditioner under test to perform a shutdown operation through the dynamic temperature control module, and sending an adjustment command to the test bench operating condition control module, so that the test bench operating condition control module can readjust the current indoor and outdoor environmental conditions of the test bench back to the indoor and outdoor target conditions where the current test conditions are located based on the adjustment command; when it is determined that the test bench has readjusted back to the indoor and outdoor target conditions where the current test conditions are located, controlling the air conditioner under test to restart; after it is determined that the air conditioner under test has restarted, controlling the air conditioner under test to operate according to the full-load operating parameters.

[0014] Optionally, controlling the air conditioner under test to operate according to full-load operating parameters includes: in cooling mode, adjusting the set temperature of the air conditioner under test to the lower limit of the settable temperature of the air conditioner under test, and controlling the air conditioner under test to operate at the lower limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, and the compressor, outdoor fan, and throttling device of the air conditioner under test to operate freely according to the control program of the air conditioner under test; in heating mode, adjusting the set temperature of the air conditioner under test to the upper limit of the settable temperature of the air conditioner under test, and controlling the air conditioner under test to operate at the upper limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, and the compressor, outdoor fan, and throttling device of the air conditioner under test to operate freely according to the control program of the air conditioner under test.

[0015] Optionally, the energy efficiency testing method for the air conditioner further includes: during the process of controlling the air conditioner under test to operate according to the full load operating parameters, calculating the second cumulative operating time of the air conditioner under test in the full load test phase; when it is determined that the second cumulative operating time is greater than the set operating time, determining that the air conditioner under test meets the convergence condition of the full load test phase.

[0016] Optionally, the energy efficiency testing method for the air conditioner further includes: when it is determined that the air conditioner under test meets the convergence conditions of the full load test phase, saving and outputting the dynamic energy efficiency test results of the air conditioner under test under the current test condition; controlling the air conditioner under test to perform a shutdown operation; and when the current test condition is not the last test condition, controlling the test bench condition control module to enter the next test condition.

[0017] According to another aspect of the present invention, an energy efficiency testing device for an air conditioner is also provided, which is applied to the energy efficiency testing method for the air conditioner described in any one of the above-mentioned embodiments, comprising: an acquisition unit, configured to acquire heat load information of the test bench when it is determined that the test bench meets the tolerance conditions for test start-up, and to determine the building heat load of the test bench based on the heat load information using the building heat load metering module; a collection unit, configured to collect the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test at the current moment through the test bench data acquisition module; and a processing unit, configured to determine the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment using the dynamic temperature control adjustment module based on the building heat load, the indoor environmental parameters, the outdoor environmental parameters, and the operating parameters, and to send the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment to the test bench operating condition control unit. The system includes a module for adjusting the indoor dry-bulb temperature of the test bench to the target indoor dry-bulb temperature at the next moment, and adjusting the indoor wet-bulb temperature of the test bench to the target indoor wet-bulb temperature at the next moment; a judgment unit for judging whether the air conditioner under test meets the convergence condition during the operation of the air conditioner under test according to the target instruction, and obtaining a judgment result; a first output unit for outputting the dynamic energy efficiency test result of the air conditioner under test through the dynamic energy efficiency metering module when the judgment result includes that the air conditioner under test meets the convergence condition in the current test condition; and a second output unit for controlling the air conditioner under test to enter the full-load test stage when the judgment result includes that the air conditioner under test does not meet the convergence condition in the current test condition, and outputting the dynamic energy efficiency test result of the air conditioner under test in the full-load test stage after the full-load test is completed.

[0018] Optionally, the acquisition unit includes: a first control module, configured to set the operating temperature of the air conditioner under test to a first preferred target set temperature in cooling mode, and control the air conditioner under test to continuously operate at the first preferred target set temperature, while simultaneously controlling the indoor fan speed of the air conditioner under test to set to the first preferred target speed, and controlling the air conditioner under test to continuously operate at the first preferred target speed, wherein the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test; and a second control module, configured to set the operating temperature of the air conditioner under test to a second preferred target set temperature in heating mode, and control the air conditioner under test to continuously operate at the second preferred target set temperature, while simultaneously controlling the indoor fan speed of the air conditioner under test to set to the second preferred target speed, and controlling the air conditioner under test to continuously operate at the second preferred target speed, wherein the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test.

[0019] Optionally, the acquisition unit includes: a calculation module, used to calculate the total heat load of the building's indoor and outdoor temperature difference heat conduction load, the solar radiation heat load, the outdoor air infiltration heat load, and the equipment / human body heat generation load in the heat load information using the building heat load metering module; and a determination module, used to determine the total heat load as the building heat load.

[0020] Optionally, the processing unit includes: a first calculation module, used to acquire, through the dynamic temperature control module, the building heat load calculated by the building heat load metering module, the indoor environmental parameters collected by the test bench data acquisition module, the outdoor environmental parameters, and the operating parameters after the test bench operating condition control module detects that the air conditioner under test has entered the testing phase; and a second calculation module, used to calculate, through the dynamic temperature control module, the target indoor dry-bulb temperature and the target indoor wet-bulb temperature at the next moment based on the building heat load, the indoor environmental parameters, the outdoor environmental parameters, and the operating parameters.

[0021] Optionally, the judgment unit includes: a first acquisition module, configured to acquire a first cumulative operating time of the air conditioner under test; a first determination module, configured to acquire the real-time indoor wet-bulb temperature and the real-time indoor dry-bulb temperature when the first cumulative operating time is greater than a first predetermined time, and determine that the air conditioner under test meets the convergence condition when the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is within a first predetermined temperature difference range and the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is within a second predetermined temperature difference range; and a second determination module, configured to determine that the air conditioner under test does not meet the convergence condition when the first cumulative operating time is greater than the first predetermined time if the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is not within the first predetermined temperature difference range, or if the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is not within the second predetermined temperature difference range.

[0022] Optionally, the energy efficiency testing device for the air conditioner further includes: a first adjustment module, used to continue adjusting the indoor target dry-bulb temperature and the indoor target wet-bulb temperature when it is determined that the first cumulative running time is not greater than the first predetermined time, until the temperature difference between the indoor real-time wet-bulb temperature and the indoor target wet-bulb temperature is within the first predetermined temperature difference range, and the temperature difference between the indoor real-time dry-bulb temperature and the indoor target dry-bulb temperature is within the second predetermined temperature difference range.

[0023] Optionally, the control unit includes: a second adjustment module, configured to control the air conditioner under test to perform a shutdown operation through the dynamic temperature control adjustment module, and send an adjustment command to the test bench operating condition control module, so as to use the test bench operating condition control module to readjust the current indoor and outdoor environmental conditions of the test bench back to the target indoor and outdoor conditions where the current test conditions are located based on the adjustment command; a second control module, configured to control the air conditioner under test to restart when it is determined that the test bench has been readjusted back to the target indoor and outdoor conditions where the current test conditions are located; and a third control module, configured to control the air conditioner under test to operate according to full load operating parameters after it is determined that the air conditioner under test has restarted.

[0024] Optionally, the control unit includes: a fourth control module, configured to adjust the set temperature of the air conditioner under test to the lower limit of the settable temperature of the air conditioner under test in cooling mode, and control the air conditioner under test to operate at the lower limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, wherein the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test; and a fifth control module, configured to adjust the set temperature of the air conditioner under test to the upper limit of the settable temperature of the air conditioner under test in heating mode, and control the air conditioner under test to operate at the upper limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, wherein the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test.

[0025] Optionally, the energy efficiency testing device for the air conditioner further includes: a statistics unit, used to count the second cumulative running time of the air conditioner under test in the full load test phase during the process of controlling the air conditioner under test to operate according to the full load operating parameters; and a determination unit, used to determine that the air conditioner under test meets the convergence condition of the full load test phase when the second cumulative running time is determined to be greater than the set running time.

[0026] Optionally, the energy efficiency testing device for the air conditioner further includes: a storage unit, used to save and output the dynamic energy efficiency test results of the air conditioner under test under the current test condition when it is determined that the air conditioner under test meets the convergence conditions of the full load test phase; the control unit is also used to control the air conditioner under test to perform a shutdown operation; the control unit is also used to control the test bench condition control module to enter the next test condition when the current test condition is not the last test condition.

[0027] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein the program executes any of the above-described energy efficiency testing methods for air conditioners.

[0028] According to another aspect of the present invention, a processor is also provided, the processor being configured to run a program, wherein the program, when running, executes any of the above-described energy efficiency testing methods for air conditioners.

[0029] In this embodiment of the invention, when it is determined that the test bench meets the tolerance conditions for test start-up, the heat load information of the test bench is acquired, and the building heat load of the test bench is determined based on the heat load information using the building heat load metering module; the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test are collected at the current moment through the test bench data acquisition module; the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment are determined by the dynamic temperature control module based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters, and the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment are sent to the test bench operating condition control module, so that the test bench operating condition control module can be used to control the test. The indoor dry-bulb temperature of the test bench is adjusted to the target indoor dry-bulb temperature for the next moment, and the indoor wet-bulb temperature of the test bench is also adjusted to the target indoor wet-bulb temperature for the next moment. During the operation of the air conditioner under test according to the target command, it is determined whether the air conditioner under test meets the convergence condition, and the judgment result is obtained. If the judgment result indicates that the air conditioner under test meets the convergence condition in the current test condition, the dynamic energy efficiency test result of the air conditioner under test is output through the dynamic energy efficiency metering module. If the judgment result indicates that the air conditioner under test does not meet the convergence condition in the current test condition, the air conditioner under test is controlled to enter the full-load test stage. After the full-load test stage is completed, the dynamic energy efficiency test result of the air conditioner under test in the full-load test stage is output. Through the above technical solutions, the goal of adding a building heat load metering module and a dynamic temperature control module to the test bench to dynamically adjust the indoor operating conditions based on the real-time room heat load and the real-time cooling and heating capacity of the air conditioner is achieved. This realizes the technical effect of dynamic energy efficiency testing of the air conditioner under test, fills the technical need in this field for dynamic energy efficiency testing methods for air conditioners, and enables the energy efficiency test of the air conditioner under test to reflect the actual operating performance level of the air conditioner. This solves the technical problem that the enthalpy difference method test bench in related technologies cannot test the dynamic energy efficiency and performance parameters of air conditioners and cannot reflect the actual operating performance level of the air conditioner. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of an air conditioner energy efficiency testing system according to an embodiment of the present invention;

[0032] Figure 2 This is a hardware structure block diagram of a mobile terminal for an air conditioner energy efficiency testing method according to an embodiment of the present invention.

[0033] Figure 3This is a flowchart of an energy efficiency testing method for an air conditioner according to an embodiment of the present invention;

[0034] Figure 4 This is a flowchart of an optional energy efficiency testing method for an air conditioner according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of an energy efficiency testing device for an air conditioner according to an embodiment of the present invention. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] As described in the background section, the enthalpy difference method test bench in related technologies cannot test the dynamic energy efficiency and performance parameters of air conditioners, and cannot reflect the actual performance level of air conditioners during operation. To address these shortcomings, embodiments of the present invention provide an air conditioner energy efficiency testing system, an air conditioner energy efficiency testing method, and an apparatus.

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0040] According to one aspect of the present invention, an air conditioner energy efficiency testing system is provided. Figure 1 This is a schematic diagram of an air conditioner energy efficiency testing system according to an embodiment of the present invention, such as... Figure 1 As shown, the energy efficiency testing system for this air conditioner includes:

[0041] The test bench data acquisition module 101 is installed in the test bench and communicates with the test bench operating condition control module. It is used to collect the indoor environmental parameters, outdoor environmental parameters and operating parameters of the air conditioner under test at the current moment. The test bench is a platform for energy efficiency testing of the air conditioner under test. The indoor environmental parameters include at least: indoor dry bulb temperature, indoor wet bulb temperature and indoor real-time dehumidification capacity. The outdoor environmental parameters include at least: outdoor dry bulb temperature and outdoor wet bulb temperature. The operating parameters include at least: power, dehumidification capacity, cooling capacity and heating capacity.

[0042] As above Figure 1 As shown, the test bench data acquisition module is a control system and device used in the test bench to collect environmental parameters of the test bench, including but not limited to parameters such as ambient air dry-bulb temperature, ambient air wet-bulb temperature, ambient air velocity, ambient air humidity, and ambient thermal radiation intensity (simulated solar radiation).

[0043] The air conditioner under test here specifically refers to the air source heat pump type air conditioner participating in the test. In terms of structure, it includes integrated and split air conditioners. The air conditioning capacity models include, but are not limited to, 1 horsepower, 1.5 horsepower, 2 horsepower, 3 horsepower, and 5 horsepower models. Its heat exchanger includes, but is not limited to, evaporator, condenser, and total heat exchanger.

[0044] The building heat load metering module 103 is used to collect the heat load information of the test bench and determine the building heat load of the test bench based on the heat load information. The heat load information includes at least: the indoor and outdoor temperature difference heat conduction load of the room where the test bench is located, the solar radiation heat load of the room, the outdoor air infiltration heat load of the room, and the heat load generated by equipment / humans in the room.

[0045] The dynamic temperature control module 105 is used to determine the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment based on the building heat load, indoor environmental parameters, real-time cooling / heating capacity and real-time dehumidification capacity of the air conditioner under test after receiving the building heat load, indoor environmental parameters, real-time cooling / heating capacity and real-time dehumidification capacity of the air conditioner under test.

[0046] This dynamic temperature control system is the core control system of this system. Its core functions include, but are not limited to: acquiring and measuring the real-time building heat load of the test room on the test bench, acquiring and measuring the real-time cooling / heating capacity of the air conditioner under test, acquiring and adjusting the real-time dry-bulb temperature of the outdoor / indoor side of the test room, acquiring and adjusting the real-time wet-bulb temperature of the outdoor / indoor side of the test room, predicting the target dry-bulb temperature of the outdoor / indoor side, and predicting the target wet-bulb temperature of the outdoor / indoor side.

[0047] The test bench operating condition control module 107 is used to adjust and maintain the outdoor environmental conditions and the initial indoor environmental conditions to the target test conditions before the test starts. When the test starts, it is used to adjust the indoor dry-bulb temperature of the test bench to the target indoor dry-bulb temperature of the next moment, and adjust the indoor wet-bulb temperature of the test bench to the target indoor wet-bulb temperature of the next moment.

[0048] The test bench operating condition control module specifically refers to a control platform capable of adjusting the outdoor and indoor environmental testing conditions of the test bench according to target control commands. In this embodiment of the invention, the test bench operating condition control module can have, but is not limited to, the following functions: 1) It can independently adjust the outdoor and indoor environmental conditions, including but not limited to parameters such as ambient air dry-bulb temperature, ambient air wet-bulb temperature, ambient air velocity, and ambient thermal radiation intensity (simulated solar radiation); 2) It can adjust and measure the heat generation of indoor equipment; 3) It can simulate and measure the heat generation of indoor personnel; 4) It can measure the heat exchange between indoor and outdoor environments; 5) It can adjust the humidity of indoor and outdoor ambient air; 6) It can measure the dehumidification capacity of indoor and outdoor air conditioning; 7) It can measure the data acquisition time manager of the experimental process.

[0049] It should be noted that the test bench operating condition control module can be used in test benches such as enthalpy difference test benches, heat transfer test benches, and thermal balance test benches, including but not limited to those used in enthalpy difference test benches, heat transfer test benches, and thermal balance test benches.

[0050] The dynamic energy efficiency metering module 109 is used to output the dynamic energy efficiency test results of the air conditioner under test when it is determined that the air conditioner under test meets the convergence conditions in the current test conditions, and to control the air conditioner under test to enter the full load test stage when the air conditioner under test does not meet the convergence conditions in the current test conditions. After the full load test stage is completed, it outputs the dynamic energy efficiency test results of the air conditioner under test in the full load test stage.

[0051] It should be noted that the energy efficiency testing method for air conditioners provided in the following embodiments of the present invention is a series of control and execution strategies jointly implemented by the test bench operating condition control module, the test bench air box, the air conditioner under test, the test bench data acquisition module, the dynamic temperature control module, and the dynamic energy efficiency metering module.

[0052] As described above, in this embodiment of the invention, the test bench data acquisition module is installed in the test bench and communicates with the test bench operating condition control module. It is used to collect the current indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test. The test bench is a platform for energy efficiency testing of the air conditioner under test. The indoor environmental parameters include at least: real-time cooling / heating capacity of the air conditioner under test, indoor dry-bulb temperature, indoor wet-bulb temperature, and real-time dehumidification capacity. The outdoor environmental parameters include at least: outdoor dry-bulb temperature and outdoor wet-bulb temperature. The operating parameters include at least: power, dehumidification capacity, cooling capacity, and heating capacity. The test bench includes a building heat load metering module, used to collect heat load information and determine the building heat load based on this information. The heat load information includes at least: the building's indoor-outdoor temperature difference heat transfer load, the room's solar radiation heat load, the room's outdoor air infiltration heat load, and the heat load generated by equipment / human occupants within the room. A dynamic temperature control module, upon receiving the building heat load, indoor environmental parameters, the real-time cooling / heating capacity of the tested air conditioner, and the real-time dehumidification capacity of the tested air conditioner, determines the building heat load based on these parameters. The humidity measurement module determines the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment. The test bench operating condition control module, before test startup, adjusts and maintains the outdoor and initial indoor environmental conditions to the target test conditions. At test startup, it adjusts the indoor dry-bulb temperature and wet-bulb temperature to the target indoor wet-bulb temperature at the next moment. The dynamic energy efficiency metering module outputs the dynamic energy efficiency test results of the tested air conditioner when it is determined that the tested air conditioner meets the convergence conditions in the current test conditions. When the air conditioner does not meet the convergence condition under the current test conditions, the air conditioner under test is controlled to enter the full load test phase. After the full load test phase is completed, the dynamic energy efficiency test results of the air conditioner under test during the full load test phase are output. This achieves the purpose of adding a building heat load metering module and a dynamic temperature control module to the test bench to dynamically adjust the indoor operating conditions based on the real-time room heat load and the real-time cooling and heating capacity of the air conditioner. This realizes the technical effect of dynamic energy efficiency testing of the air conditioner under test, fills the technical need for dynamic energy efficiency testing methods for air conditioners in this field, and enables the energy efficiency test of the air conditioner under test to reflect the actual operating performance level of the air conditioner.

[0053] The technical solutions provided by the embodiments of the present invention solve the technical problem that the enthalpy difference method test bench in the related art cannot test the dynamic energy efficiency and performance parameters of air conditioners, and cannot reflect the actual performance level of air conditioners.

[0054] According to the above embodiments of the present invention, the air conditioner energy efficiency testing system may further include: a test bench air box, connected to the inlet / outlet of the heat exchanger of the air conditioner under test, for acquiring at least the following information from the inlet / outlet of the heat exchanger: dry bulb temperature, wet bulb temperature, dehumidification capacity, operating power of the air conditioner under test, and cooling / heating capacity of the air conditioner under test.

[0055] like Figure 1 As shown, the air conditioner energy efficiency testing system may further include a test bench air box 111. In this embodiment, the test bench air box can be used to measure the current outdoor dry-bulb temperature and the current outdoor wet-bulb temperature, as well as the current indoor dry-bulb temperature and the current indoor wet-bulb temperature.

[0056] The test bench air box 111 is connected to the inlet and outlet of the heat exchanger of the air conditioner 113 under test, and can measure, but is not limited to, parameters such as dry bulb temperature, wet bulb temperature, air volume, and dehumidification capacity of the air at the inlet and outlet of the heat exchanger of the air conditioner under test.

[0057] The methods and embodiments provided in this invention can be executed on a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, Figure 2 This is a hardware structure block diagram of a mobile terminal for an air conditioner energy efficiency testing method according to an embodiment of the present invention. Figure 2 As shown, a mobile terminal may include one or more ( Figure 2 Only one is shown in the diagram. A processor 202 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 204 for storing data are also shown. The mobile terminal may further include a transmission device 206 for communication functions and an input / output device 208. Those skilled in the art will understand that... Figure 2 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 2 The more or fewer components shown, or having the same Figure 2 The different configurations shown.

[0058] The memory 204 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the air conditioner energy efficiency testing method in this embodiment of the invention. The processor 202 executes various functional applications and data processing by running the computer program stored in the memory 204, thereby implementing the above-described method. The memory 204 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 204 may further include memory remotely located relative to the processor 202, and these remote memories can be connected to the mobile terminal via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 206 is used to receive or send data via a network. Specific examples of the aforementioned networks may include wireless networks provided by the mobile terminal's communication provider. In one example, the transmission device 206 includes a network interface controller (NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 206 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0059] According to an embodiment of the present invention, a method embodiment for testing the energy efficiency of an air conditioner is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0060] Figure 3 This is a flowchart of an energy efficiency testing method for an air conditioner according to an embodiment of the present invention, such as... Figure 3 As shown, the method includes the following steps:

[0061] Step S302: When it is determined that the test bench meets the tolerance conditions for test start-up, the heat load information of the test bench is obtained, and the building heat load of the test bench is determined based on the heat load information using the building heat load metering module.

[0062] In this embodiment, after the air conditioner under test completes the relevant operations of being installed on the test bench, the tester sends a start-up command to the test bench. Upon receiving feedback from the test bench, the start-up of the test bench can be confirmed.

[0063] Figure 4 This is a flowchart of an optional energy efficiency testing method for an air conditioner according to an embodiment of the present invention, such as... Figure 4As shown, when the test bench operating condition control module receives the start command from the tester, the test bench operating condition control module first sends the first working command to the data acquisition time manager. After receiving the first working command, the data acquisition time manager first controls the test bench data acquisition module to collect the outdoor air dry-bulb temperature Ta-out(t), outdoor air wet-bulb temperature Td-out(t), indoor air dry-bulb temperature Ta-in(t), and indoor air wet-bulb temperature Td-in(t) of the test bench once according to the time interval △T1.

[0064] It should be noted that the value of △T1 can be, but is not limited to, 1-600s, and the preferred values ​​are 10s, 15s, 20s, 30s, 60s, 120s, 180s, 300s, and 600s.

[0065] In this embodiment, there can be multiple test conditions, and some pre-set conditions for testing the performance of the air conditioner under test can be selected as target test conditions for performance testing.

[0066] As above Figure 4 As shown, determine whether the outdoor dry-bulb temperature Ta-out(t), outdoor wet-bulb temperature Td-out(t), indoor dry-bulb temperature Ta-out(t), and indoor wet-bulb temperature Td-out(t) of the test bench meet the tolerance conditions for starting the test, obtain the judgment result, and perform the corresponding next step operation based on the judgment result.

[0067] As above Figure 4 As shown, a start-up judgment condition was set for the test bench startup test. This start-up judgment condition is a tolerance condition, which specifically involves the outdoor air dry-bulb temperature Ta-out(t), outdoor air wet-bulb temperature Td-out(t), indoor air dry-bulb temperature Ta-in(t), and indoor air wet-bulb temperature Td-in(t) in the test bench. The specific parameter settings are shown in Table 1 below:

[0068] Table 1

[0069]

[0070] The following restrictions are imposed on the control parameters for each test condition:

[0071] (1)Ta-out-1>Ta-out-2>Ta-out-3>Ta-out-4>Ta-out-5;

[0072] (2)Td-out-1>Td-out-2>Td-out-3>Td-out-4>Td-out-5;

[0073] (3)Ta-in-1>Ta-in-2>Ta-in-3>Ta-in-4>Ta-in-5;

[0074] (4)Td-in-1>Td-in-2>Td-in-3>Td-in-4>Td-in-5;

[0075] (5) △T is the stable temperature difference ∈ [0, 1℃], preferably 0.5℃, and the same applies below, so it will not be repeated.

[0076] It should be noted that the execution order of the test conditions is as follows: Start Test → Test Condition 1 → Test Condition 2 → Test Condition 3 → Test Condition 4 → Test Condition 5 → End Test.

[0077] The tolerance conditions also involve the time-based judgment conditions for the outdoor dry-bulb temperature Ta-out(t), outdoor wet-bulb temperature Td-out(t), indoor dry-bulb temperature Ta-in(t), and indoor wet-bulb temperature Td-in(t) parameters in the test bench. The following is a description of each test condition:

[0078] (1) For test condition 1, if the following conditions are met: outdoor dry-bulb temperature Ta-out(t) = Ta-out-1 ± 0.5℃ and outdoor wet-bulb temperature Td-out(t) = Td-out-1 ± 0.5℃ and indoor dry-bulb temperature Ta-in(t) = Ta-in-1 ± 0.5℃ and indoor wet-bulb temperature Td-in(t) = Td-in-1 ± 0.5℃ and the maintenance time is not less than 30 min, then it is judged that the tolerance condition of test condition 1 is met, and the next working instruction can be executed; otherwise, it is judged that the tolerance condition of test condition 1 is not met, and the adjustment instruction 1 is fed back to the test bench condition control system to continue to adjust the test condition of the test bench until the tolerance condition 2 is met.

[0079] (2) For test condition 2, if the following conditions are met: outdoor dry-bulb temperature Ta-out(t) = Ta-out-2 ± 0.5℃ and outdoor wet-bulb temperature Td-out(t) = Td-out-2 ± 0.5℃ and indoor dry-bulb temperature Ta-in(t) = Ta-in-2 ± 0.5℃ and indoor wet-bulb temperature Td-in(t) = Td-in-2 ± 0.5℃ and the maintenance time is not less than 30 minutes, then it is judged that the tolerance condition of test condition 2 is met, and the next working instruction can be executed; otherwise, it is judged that the tolerance condition of test condition 2 is not met, and the adjustment instruction 1 is fed back to the test bench condition control system to continue to adjust the test condition of the test bench until the tolerance condition 2 is met.

[0080] (3) For test condition 3, if the following conditions are met: outdoor dry-bulb temperature Ta-out(t) = Ta-out-3 ± 0.5℃ and outdoor wet-bulb temperature Td-out(t) = Td-out-3 ± 0.5℃ and indoor dry-bulb temperature Ta-in(t) = Ta-in-3 ± 0.5℃ and indoor wet-bulb temperature Td-in(t) = Td-in-3 ± 0.5℃ and the maintenance time is not less than 30 minutes, then it is judged that the tolerance condition of test condition 3 is met, and the next working instruction can be executed; otherwise, it is judged that the tolerance condition of test condition 3 is not met, and the adjustment instruction 1 is fed back to the test bench condition control system to continue to adjust the test condition of the test bench until the tolerance condition 2 is met.

[0081] (4) For test condition 4, if the following conditions are met: outdoor dry-bulb temperature Ta-out(t) = Ta-out-4 ± 0.5℃ and outdoor wet-bulb temperature Td-out(t) = Td-out-4 ± 0.5℃ and indoor dry-bulb temperature Ta-in(t) = Ta-in-4 ± 0.5℃ and indoor wet-bulb temperature Td-in(t) = Td-in-4 ± 0.5℃ and the maintenance time is not less than 30 minutes, then it is judged that the tolerance conditions of test condition 4 are met, and the next working instruction can be executed; otherwise, it is judged that the tolerance conditions of test condition 4 are not met, and the adjustment instruction 1 is fed back to the test bench condition control system to continue to adjust the test condition of the test bench until the tolerance condition 2 is met.

[0082] (5) For test condition 5, if the following conditions are met: outdoor dry-bulb temperature Ta-out(t) = Ta-out-5 ± 0.5℃ and outdoor wet-bulb temperature Td-out(t) = Td-out-5 ± 0.5℃ and indoor dry-bulb temperature Ta-in(t) = Ta-in-5 ± 0.5℃ and indoor wet-bulb temperature Td-in(t) = Td-in-5 ± 0.5℃ and the maintenance time is not less than 30 minutes, then it is judged that the tolerance conditions of test condition 5 are met, and the next working instruction can be executed; otherwise, it is judged that the tolerance conditions of test condition 5 are not met, and the adjustment instruction 1 is fed back to the test bench condition control system to continue to adjust the test condition of the test bench until the tolerance condition 2 is met.

[0083] It should be noted that the specific meaning of adjustment command 1 here is: 1) The test bench data acquisition system feeds back the real-time collected outdoor air dry-bulb temperature Ta-out(t), outdoor air wet-bulb temperature Td-out(t), indoor air dry-bulb temperature Ta-in(t), and indoor air wet-bulb temperature Td-in(t) parameters to the test bench operating condition control system; 2) The test bench operating condition control system judges and confirms the current target test condition, such as one of the target test conditions 1, 2, 3, 4, and 5 mentioned above; 3) The test bench operating condition control system judges the real-time collected outdoor air dry-bulb temperature Ta-out(t), indoor air wet-bulb temperature Td-in(t) parameters respectively. Whether the outdoor air wet-bulb temperature Td-out(t), indoor air dry-bulb temperature Ta-in(t), and indoor air wet-bulb temperature Td-in(t) parameters respectively meet the target test conditions of outdoor air dry-bulb temperature Ta-out, outdoor air wet-bulb temperature Td-out, indoor air dry-bulb temperature Ta-in, and indoor air wet-bulb temperature Td-in. If one or more of the real-time outdoor air dry-bulb temperature Ta-out(t), outdoor air wet-bulb temperature Td-out(t), indoor air dry-bulb temperature Ta-in(t), and indoor air wet-bulb temperature Td-in(t) do not meet the target parameters, the test bench operating condition control system will make adjustments accordingly.

[0084] Step S304: Collect the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test at the current moment through the test bench data acquisition module.

[0085] In this embodiment, indoor environmental parameters may include: indoor dry-bulb temperature and indoor wet-bulb temperature (not limited to obtainable parameters such as indoor air density, air pressure, air velocity, and indoor radiant temperature). Outdoor environmental parameters may include: outdoor dry-bulb temperature and outdoor wet-bulb temperature (not limited to obtainable parameters such as outdoor air density, air pressure, air velocity, and outdoor total solar radiation intensity); the operating parameters of the air conditioner under test include at least: power, dehumidification capacity, cooling capacity, and heating capacity (not limited to obtainable parameters such as air conditioner power consumption, airflow, and overall operating current).

[0086] Step S306: The dynamic temperature control module determines the target indoor dry-bulb temperature and target indoor wet-bulb temperature for the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters. The target indoor dry-bulb temperature and target indoor wet-bulb temperature for the next moment are then sent to the test bench operating condition control module. The test bench operating condition control module adjusts the indoor dry-bulb temperature and the indoor wet-bulb temperature of the test bench to the target indoor dry-bulb temperature for the next moment.

[0087] In this embodiment, the dynamic temperature control module can use dynamic temperature control technology to combine building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters to determine the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment. The module then sends these values ​​to the test bench operating condition control module, which adjusts the indoor dry-bulb temperature and wet-bulb temperature of the test bench to the target indoor dry-bulb temperature and wet-bulb temperature at the next moment.

[0088] Step S308: During the process of the air conditioner under test operating according to the target instruction, determine whether the air conditioner under test meets the convergence condition and obtain the judgment result.

[0089] In this embodiment, during the operation of the air conditioner under test according to the target operation command, it can be determined whether the air conditioner under test meets the convergence condition, and subsequent steps can be processed based on the determination result.

[0090] Step S310: When the judgment result includes that the air conditioner under test meets the convergence condition in the current test conditions, the dynamic energy efficiency test result of the air conditioner under test is output through the dynamic energy efficiency metering module.

[0091] Step S312: When the judgment result includes that the air conditioner under test does not meet the convergence condition in the current test condition, control the air conditioner under test to enter the full load test stage. After the full load test is completed, output the dynamic energy efficiency test result of the air conditioner under test in the full load test stage.

[0092] As can be seen from the above, in this embodiment of the invention, when it is determined that the test bench meets the tolerance conditions for test start-up, the heat load information of the test bench is acquired, and the building heat load of the test bench is determined based on the heat load information using the building heat load metering module; the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test are collected at the current moment through the test bench data acquisition module; the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment are determined by the dynamic temperature control adjustment module based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters, and the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment are sent to the test bench operating condition control module, so that the test bench operating condition control module can adjust the indoor dry-bulb temperature of the test bench to the indoor target dry-bulb temperature at the next moment, and adjust the indoor wet-bulb temperature of the test bench to the indoor target wet-bulb temperature at the next moment; in the air conditioner under test During the operation according to the target instructions, it is determined whether the air conditioner under test meets the convergence condition, and the judgment result is obtained. When the judgment result indicates that the air conditioner under test meets the convergence condition in the current test condition, the dynamic energy efficiency test result of the air conditioner under test is output through the dynamic energy efficiency metering module. When the judgment result indicates that the air conditioner under test does not meet the convergence condition in the current test condition, the air conditioner under test is controlled to enter the full load test stage. After the full load test stage is completed, the dynamic energy efficiency test result of the air conditioner under test in the full load test stage is output. This achieves the purpose of adding a building heat load metering module and a dynamic temperature control module to the test bench to dynamically adjust the indoor operating conditions based on the real-time room heat load and the real-time cooling and heating capacity of the air conditioner. It realizes the technical effect of dynamic energy efficiency testing of the air conditioner under test, fills the technical need for dynamic energy efficiency testing methods for air conditioners in this field, and enables the energy efficiency test of the air conditioner under test to reflect the actual operating performance level of the air conditioner.

[0093] The technical solutions provided by the embodiments of the present invention solve the technical problem that the enthalpy difference method test bench in the related art cannot test the dynamic energy efficiency and performance parameters of air conditioners, and cannot reflect the actual performance level of air conditioners.

[0094] It should be noted that in the embodiments of the present invention, the dry-bulb temperature refers to the dry-bulb temperature of the air conditioner, and the wet-bulb temperature refers to the wet-bulb temperature of the air.

[0095] As above Figure 4As shown, if the outdoor dry-bulb temperature Ta-out(t), outdoor wet-bulb temperature Td-out(t), indoor dry-bulb temperature Ta-in(t), and indoor wet-bulb temperature Td-in(t) of the test bench meet the start-up tolerance conditions, the test bench will enter the testing phase. Otherwise, a start-up command will be sent to the test bench's operating condition control module, which will then continue to adjust the test bench's operating parameters until all three parameters meet the start-up conditions.

[0096] According to the above embodiments of the present invention, when it is determined that the test bench meets the tolerance conditions for test start-up, the test bench controls the air conditioner under test to start up and operate. The air conditioner under test operates according to the target instruction, including: in cooling mode, setting the operating temperature of the air conditioner under test to a first preferred target setting temperature, and controlling the air conditioner under test to continuously operate according to the first preferred target setting temperature; simultaneously, controlling the indoor fan speed of the air conditioner under test to set to the first preferred target speed, and controlling the air conditioner under test to continuously operate according to the first preferred target speed; the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test; in heating mode, setting the operating temperature of the air conditioner under test to a second preferred target setting temperature, and controlling the air conditioner under test to continuously operate according to the second preferred target setting temperature; simultaneously, controlling the indoor fan speed of the air conditioner under test to set to the second preferred target speed, and controlling the air conditioner under test to continuously operate according to the second preferred target speed; the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test.

[0097] As above Figure 4 As shown, in each of the above test conditions, once the environmental parameters of the test bench meet the tolerance conditions, the test bench operating condition control module will send a working instruction to the air conditioner under test; the specific working instructions sent by the test bench operating condition control module to the air conditioner under test are shown in Table 2 below:

[0098] Table 2

[0099]

[0100] After receiving the control commands shown in Table 2 above, the following test conditions will be used as examples to describe how the air conditioner under test operates according to the operating commands:

[0101] 1) For test condition 1 and test condition 2, the working instructions sent by the test bench control module to the air conditioner under test are specifically: set temperature to T setting 1, indoor fan set to F target fan speed, outdoor fan set to free operation, compressor set to free operation, and throttling device set to free operation.

[0102] 2) For test conditions 3, 4 and 5, the working instructions sent by the test bench control module to the air conditioner under test are specifically: set the temperature to T setting 2, set the indoor fan to F target fan speed, set the outdoor fan to free operation, set the compressor to free operation, and set the throttling device to free operation.

[0103] The following is a detailed explanation of some of the terms and settings mentioned above:

[0104] 1) The set temperature refers to the test bench operating condition control module sending instructions to the air conditioner under test and requiring the air conditioner under test to operate according to the target set temperature value throughout the entire target test condition operation;

[0105] (2) The indoor fan fan speed is F target speed, which means that the test bench working condition control module sends an instruction to the air conditioner under test and requires the air conditioner under test to run the indoor fan according to the F target speed in its control program during the entire operation of the target test condition.

[0106] (3) The outdoor fan damper is free to run, which means that the instructions sent by the test bench operating condition control module to the air conditioner under test do not include the operation control instructions for the outdoor fan. During the entire operation process, the outdoor fan is controlled by the air conditioner itself and is not controlled by the test bench operating condition control module.

[0107] (4) The compressor is running freely, which means that the instructions sent by the test bench operating condition control module to the air conditioner under test do not include the operation control instructions for its compressor. During the entire operation process, the compressor is controlled by the control instructions of the air conditioner itself and is not controlled by the test bench operating condition control module.

[0108] (5) The throttling device is free to operate, which means that the instructions sent by the test bench operating condition control module to the air conditioner under test do not include the operation control instructions for its throttling device. During the entire operation process, the throttling device is controlled by the control instructions of the air conditioner itself, and is not controlled by the test bench operating condition control module.

[0109] In addition, the following restrictions are imposed on the values ​​of T setting 1, T setting 2, and F target fan speed: the value range of T setting 1 is 21℃-28℃, and the preferred value can be one of 21℃, 22℃, 23℃, 24℃, 25℃, 26℃, 27℃, and 28℃; the value range of T setting 2 is 18℃-25℃, and the preferred value can be one of 18℃, 19℃, 20℃, 21℃, 22℃, 23℃, 24℃, and 25℃; the preferred value of F target fan speed is one of low fan speed, medium fan speed, high fan speed, ultra-high fan speed, and automatic fan speed.

[0110] It should be noted that the restrictions on the values ​​of T setting 1, T setting 2, and F target wind speed here do not mean that the values ​​within the restricted range will be used automatically. These are some preferred values. If there are better options, other values ​​can be used for restrictions.

[0111] According to the above embodiments of the present invention, obtaining the heat load information of the test bench and determining the building heat load of the test bench based on the heat load information using the building heat load metering module may include: using the building heat load metering module to calculate the total heat load in the heat load information, including the heat conduction load of the building's indoor and outdoor temperature difference, the heat load from solar radiation, the heat load from outdoor air infiltration, and the heat load generated by the equipment / human body; and determining the total heat load as the building heat load.

[0112] As above Figure 4 As shown, when the test bench operating condition control module determines that the air conditioner under test can be turned on and the test can be performed, the test bench operating condition control module sends a second working instruction to the data acquisition time manager. After receiving the second working instruction, the data acquisition time manager controls the test bench data acquisition module to collect the outdoor dry bulb temperature Ta-out(t), outdoor wet bulb temperature Td-out(t), indoor dry bulb temperature Ta-in(t), indoor wet bulb temperature Td-in(t), and the real-time cooling / heating capacity Qkfr(t) of the air conditioner under test once according to the time interval △T2.

[0113] It should be noted that the value of △T2 here can be within the range of 1-300s, and the preferred value can be one of 1s, 5s, 10s, 15s, 20s, 30s, 60s, 120s, 180s, or 300s.

[0114] Additionally, when the test bench's operating condition control module determines that the air conditioner under test can be turned on and the test can be performed, the test bench's operating condition control module will maintain the outdoor dry-bulb temperature Ta-out and the outdoor wet-bulb temperature Td-out of the test bench unchanged (to simulate the usage scenario of a fixed outer loop), that is:

[0115] 1) When the test bench operating condition control module executes test condition 1, the test bench operating condition control module controls and maintains the outdoor air dry bulb temperature Ta-out within the range of Ta-in-1±0.5℃, and controls and maintains the outdoor air wet bulb temperature Td-out within the range of Td-in-1±0.5℃.

[0116] 2) When the test bench operating condition control module executes test condition 2, the test bench operating condition control module controls and maintains the outdoor air dry bulb temperature Ta-out within the range of Ta-in-2±0.5℃, and controls and maintains the outdoor air wet bulb temperature Td-out within the range of Td-in-2±0.5℃.

[0117] 3) When the test bench operating condition control module executes test condition 3, the test bench operating condition control module controls and maintains the outdoor air dry bulb temperature Ta-out within the range of Ta-in-3±0.5℃, and controls and maintains the outdoor air wet bulb temperature Td-out within the range of Td-in-3±0.5℃.

[0118] 4) When the test bench operating condition control module executes test condition 4, the test bench operating condition control module controls and maintains the outdoor air dry bulb temperature Ta-out within the range of Ta-in-4±0.5℃, and controls and maintains the outdoor air wet bulb temperature Td-out within the range of Td-in-4±0.5℃.

[0119] 5) When the test bench operating condition control module executes test condition 5, the test bench operating condition control module controls and maintains the outdoor air dry bulb temperature Ta-out within the range of Ta-in-5±0.5℃, and controls and maintains the outdoor air wet bulb temperature Td-out within the range of Td-in-5±0.5℃.

[0120] In addition, once the test bench's operating condition control module successfully starts after receiving the tester's operating command, the dynamic temperature control module will also begin operating.

[0121] After the dynamic temperature control module starts working, it first activates its internal building heat load prediction module to collect and calculate the real-time building heat load Q(t) according to the time interval △T2. The real-time building heat load Q(t) includes: heat conduction due to temperature difference between indoor and outdoor temperature of the test room Q1(t), heat gain from solar radiation Q2, heat infiltration from outdoor air Q3(t), and heat generated by indoor equipment / human body Q4.

[0122] The parameters in the building heat load Q(t) are explained in detail below:

[0123] 1) The heat conduction Q1 of the building's indoor and outdoor temperature difference in the test room specifically refers to the change in the building's indoor heat load caused by the heat conduction between the outdoor and indoor sides of the room due to the temperature difference between the outdoor and indoor sides of the room, as obtained by the test bench. The real-time heat conduction Q1 of the building's indoor and outdoor temperature difference in test condition 1 is recorded as Q1-1(t), the real-time heat conduction Q1 of the building's indoor and outdoor temperature difference in test condition 2 is recorded as Q1-2(t), the real-time heat conduction Q1 of the building's indoor and outdoor temperature difference in test condition 3 is recorded as Q1-3(t), the real-time heat conduction Q1 of the building's indoor and outdoor temperature difference in test condition 4 is recorded as Q1-4(t), and the real-time heat conduction Q1 of the building's indoor and outdoor temperature difference in test condition 5 is recorded as Q1-5(t).

[0124] 2) The solar radiation heat gain Q2 of the test room on the test bench specifically refers to the change in indoor heat load caused by solar radiation heat received by the test room. For the test room, the solar radiation heat gain Q2 is determined by a target value set in the control program of the dynamic temperature control system. For test conditions 1 and 2, the solar radiation heat gain Q2 of the test room is set to Q2-1; for test conditions 3, 4, and 5, the solar radiation heat gain Q2 of the test room is set to Q2-2.

[0125] 3) The outdoor air infiltration heat Q3 of the test bench specifically refers to the change in indoor heat load caused by the heat gain or loss of the room due to air infiltration between the inside and outside of the room, as measured by the test bench. The real-time outdoor air infiltration heat Q3 for test condition 1 is denoted as Q3-1(t), the real-time outdoor air infiltration heat Q3 for test condition 2 is denoted as Q3-2(t), the real-time outdoor air infiltration heat Q3 for test condition 3 is denoted as Q3-3(t), the real-time outdoor air infiltration heat Q3 for test condition 4 is denoted as Q3-4(t), and the real-time outdoor air infiltration heat Q3 for test condition 5 is denoted as Q3-5(t).

[0126] 4) The heat generation Q4 of the indoor equipment / human body in the test room specifically refers to the change in room heat load caused by people and electrical equipment in the room during actual use of the air conditioner. In the technical claims of this application, the value of the heat generation Q4 of the indoor equipment / human body is determined by the target value set in the control program of the dynamic temperature control system. The set value of the heat generation Q4 of the indoor equipment / human body in the test room is divided according to the capacity model of the air conditioner. For a 1 horsepower unit, the heat generation Q4 of the indoor equipment / human body is set as Q4-1; for a 1.5 horsepower unit, the heat generation Q4 of the indoor equipment / human body is set as Q4-2; for a 2 horsepower unit, the heat generation Q4 of the indoor equipment / human body is set as Q4-3; for a 3 horsepower unit, the heat generation Q4 of the indoor equipment / human body is set as Q4-4; and for a 5 horsepower unit, the heat generation Q4 of the indoor equipment / human body is set as Q4-5.

[0127] As shown in Table 3 below, the building heat load Q(t) for each test condition can be obtained by adding the heat conduction due to the temperature difference between the indoor and outdoor environment of the test room Q1(t), the heat gain from solar radiation Q2, the heat infiltration from outdoor air Q3(t), and the heat generated by indoor equipment / human body Q4.

[0128] Table 3

[0129]

[0130]

[0131] According to the above embodiments of the present invention, the dynamic temperature control module determines the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters. This includes: after the test bench control module detects that the air conditioner under test has entered the testing phase, the dynamic temperature control module acquires the building heat load calculated by the building heat load metering module, the indoor environmental parameters collected by the test bench data acquisition module, the outdoor environmental parameters, and the operating parameters; and the dynamic temperature control module calculates the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters.

[0132] In this embodiment, after the dynamic temperature control module receives the building heat load Q(t) calculated by the building heat load prediction module, the real-time cooling / heating capacity Qkfr(t) of the tested air conditioner collected by the test bench data acquisition module, the real-time indoor dry-bulb temperature Ta-in(t), the real-time indoor wet-bulb temperature Td-in(t), and the real-time indoor dehumidification capacity D(t) at the next moment, it calculates the target indoor dry-bulb temperature Ta-in (target) and the target indoor wet-bulb temperature Td-in (target) at the next moment through its built-in program.

[0133] The next moment here specifically refers to the point in time formed by the execution of the second working instruction by the data acquisition time manager, according to the time interval △T2.

[0134] It should be noted that, on the time scale, when the test bench's operating condition control module determines that the air conditioner under test can be turned on and the test can be performed, the data acquisition time manager records the system time t at this time as t0, that is, t0 = 0.

[0135] Once the dynamic temperature control module obtains the indoor target dry-bulb temperature Ta-in (target) and indoor target wet-bulb temperature Td-in (target) calculated above for the next moment, it then sends adjustment command 2 to the test bench operating machine control module. After receiving the indoor target dry-bulb temperature Ta-in (target) and indoor real-time wet-bulb temperature Td-in (target) sent by the dynamic temperature control module, the test bench operating machine control module sends execution command 3 to the test bench operating machine.

[0136] The adjustment command 2 here specifically refers to the dynamic temperature control module feeding back the calculated target dry-bulb temperature Ta-in (target) and real-time wet-bulb temperature Td-in (target) of the indoor air to the test bench operating condition control module.

[0137] The execution instruction 3 here specifically refers to: the matching control device of the test bench adjusting the indoor dry-bulb temperature Ta-in and indoor wet-bulb temperature Td-in of the test bench to the target indoor dry-bulb temperature Ta-in (target) value and the real-time indoor wet-bulb temperature Td-in (target) value, respectively.

[0138] According to the above embodiments of the present invention, determining whether the air conditioner under test meets the convergence condition and obtaining the determination result includes: acquiring the first cumulative running time of the air conditioner under test; when the first cumulative running time is greater than the first predetermined running time, acquiring the real-time indoor wet-bulb temperature and the real-time indoor dry-bulb temperature; when the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is within the first predetermined temperature difference range, and the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is within the second predetermined temperature difference range, determining that the air conditioner under test meets the convergence condition; when the first cumulative running time is greater than the first predetermined running time, if the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is not within the first predetermined temperature difference range, or if the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is not within the second predetermined temperature difference range, determining that the air conditioner under test does not meet the convergence condition.

[0139] In this embodiment, a convergence condition can be set to determine whether the test air conditioner meets the shutdown requirements.

[0140] The convergence conditions here include: time control conditions, indoor dry-bulb temperature Ta-in, and indoor wet-bulb temperature Td-in stability conditions, which will be explained in detail below:

[0141] 1) The time judgment condition specifically refers to: the data acquisition time manager starts timing from the moment the test air conditioner is turned on and running. When the cumulative running time of the air conditioner meets Trun, it is judged that the time judgment condition is met at this time; otherwise, it is judged that the time judgment condition is not met.

[0142] The value of Trun here can be, but is not limited to, 1-24h. The priority value can be selected from 4h, 6h, 8h, 10h, or 12h, and the specific selection is made by the tester according to the actual needs.

[0143] 2) The stability criteria for indoor dry-bulb temperature Ta-in and indoor wet-bulb temperature Td-in specifically refer to whether the real-time indoor dry-bulb temperature Ta-in(t) and the real-time indoor wet-bulb temperature Td-in(t) are satisfied under the current state, as determined by the dynamic temperature control module.

[0144] Here, the indoor real-time dry-bulb temperature Ta-in(t) = Ta-in(target) ± 0.5℃, and the cumulative time must meet the time limit of not less than Tpw; the indoor real-time wet-bulb temperature Td-in(t) = Td-in(target) ± 0.5℃, and the cumulative time must meet the time limit of not less than Tpw.

[0145] The value of Tpw can be, but is not limited to, 1-180 min, and the preferred value can be one of 1 min, 5 min, 10 min, 15 min, 20 min, 30 min, 60 min, 120 min, or 180 min.

[0146] It should be noted that the priority of the convergence condition here is that the time control condition is higher than the stability judgment condition of the indoor air dry-bulb temperature Ta-in and the indoor air wet-bulb temperature Td-in. That is, the stability judgment condition of the indoor air dry-bulb temperature Ta-in and the indoor air wet-bulb temperature Td-in will only be executed after the test bench operating condition control module determines that the time judgment condition is met.

[0147] According to the above embodiments of the present invention, the energy efficiency testing method for the air conditioner further includes: when it is determined that the first cumulative running time is not greater than the first predetermined time, continuing to adjust the indoor target dry-bulb temperature and the indoor target wet-bulb temperature until the temperature difference between the indoor real-time wet-bulb temperature and the indoor target wet-bulb temperature is within the first predetermined temperature difference range, and the temperature difference between the indoor real-time dry-bulb temperature and the indoor target dry-bulb temperature is within the second predetermined temperature difference range.

[0148] In this embodiment, if it is determined that the first cumulative running time of the air conditioner under test is not greater than the first predetermined time, for example, 30 minutes, then the indoor target dry-bulb temperature and the indoor target wet-bulb temperature are adjusted until the temperature difference between the indoor real-time wet-bulb temperature and the indoor target wet-bulb temperature is within the first predetermined temperature difference range, and the temperature difference between the indoor real-time dry-bulb temperature and the indoor target dry-bulb temperature is within the second predetermined temperature difference range.

[0149] According to the above embodiments of the present invention, controlling the air conditioner under test to enter the full-load test phase includes: controlling the air conditioner under test to perform a shutdown operation through the dynamic temperature control adjustment module, and sending an adjustment command to the test bench operating condition control module, so as to use the test bench operating condition control module to readjust the current indoor and outdoor environmental conditions of the test bench back to the indoor and outdoor target conditions where the current test conditions are located based on the adjustment command; when it is determined that the test bench has readjusted back to the indoor and outdoor target conditions where the current test conditions are located, controlling the air conditioner under test to restart; after determining that the air conditioner under test has restarted, controlling the air conditioner under test to operate according to the full-load operating parameters.

[0150] As above Figure 4 As shown, if the air conditioner under test meets the shutdown condition during the operation of the operating instructions (that is, when the system detects that the time judgment condition and the stability judgment condition of the indoor dry-bulb temperature Ta-in and the indoor wet-bulb temperature Td-in are met simultaneously, as explained below, it will not be repeated here), the following two working instructions will be executed: Working instruction 1: The test bench operating condition control module will collect the capacity and power values ​​of the air conditioner in the test cycle under this operating condition, solve based on integration, and output the dynamic energy efficiency ratio parameter curve of the air conditioner under test in the test cycle under this operating condition; Working instruction 2: Send execution adjustment instruction 5 to the test bench operating condition control module; Here, instruction 5 specifically means that after receiving this instruction, the test bench operating condition control module will first send a shutdown instruction to the test air conditioner to shut it down.

[0151] The capacity, power, and energy efficiency ratio parameter curves here can be obtained through a dynamic energy efficiency metering system, as shown above. Figure 4 As shown, the dynamic energy efficiency metering module can measure the real-time capacity and power parameters of the air conditioner under test, and output the real-time energy efficiency ratio parameter curve of the air conditioner under test under the test conditions.

[0152] When the system detects that only the time-based judgment condition is met, but the stability judgment conditions for indoor dry-bulb temperature Ta-in and indoor wet-bulb temperature Td-in are not met, it indicates that after receiving this instruction, the dynamic temperature control module determines that the air conditioner under test cannot obtain stable dynamic energy efficiency parameter data under the current set operating parameters under this test condition, and feeds back adjustment instruction 4 to the dynamic temperature control module; here, adjustment instruction 4 specifically refers to:

[0153] (1) First, the air conditioner under test must be shut down immediately;

[0154] (2) Then, the dynamic temperature control module feeds back a working instruction to the test bench condition control system. At this time, the working instruction specifically requires the test bench condition machine to adjust the indoor and outdoor environmental conditions of the test bench back to the target indoor and outdoor conditions of the current test conditions (which can be understood as resetting the test bench conditions).

[0155] (3) Next, after the test bench operating condition control module resets the indoor and outdoor operating conditions of the test bench according to the current test target operating conditions, the test bench operating condition control system requires the air conditioner under test to restart.

[0156] According to the above embodiments of the present invention, controlling the air conditioner under test to operate according to full-load operating parameters includes: in cooling mode, adjusting the set temperature of the air conditioner under test to the lower limit of the settable temperature of the air conditioner under test, and controlling the air conditioner under test to operate at the lower limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, and the compressor, outdoor fan and throttling device of the air conditioner under test to operate freely according to the control program of the air conditioner under test; in heating mode, adjusting the set temperature of the air conditioner under test to the upper limit of the settable temperature of the air conditioner under test, and controlling the air conditioner under test to operate at the upper limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, and the compressor, outdoor fan and throttling device of the air conditioner under test to operate freely according to the control program of the air conditioner under test.

[0157] In this embodiment, after the tested air conditioner is restarted, it operates according to the full-load operating parameters. The specific full-load operating parameters of the tested air conditioner are as follows: For cooling mode: the air conditioner is required to set the temperature to the lower limit of the settable temperature (i.e., the settable temperature is required to be the minimum settable temperature value), the indoor fan speed is required to be the highest settable speed, the compressor is allowed to run freely, the outdoor fan is allowed to run freely, and the throttling device is allowed to run freely; For heating mode: the air conditioner is required to set the temperature to the upper limit of the settable temperature (i.e., the settable temperature is required to be the maximum settable temperature value), the indoor fan speed is required to be the highest settable speed, the compressor is allowed to run freely, the outdoor fan is allowed to run freely, and the throttling device is allowed to run freely.

[0158] This requires the air conditioner to run for a period of time that meets the Trun standard. The Trun value can be, but is not limited to, 1-24h. The preferred value can be one of 4h, 6h, 8h, 10h, or 12h, and the specific value should be selected by the tester based on actual needs.

[0159] According to the above embodiments of the present invention, the energy efficiency testing method for the air conditioner further includes: during the process of controlling the air conditioner under test to operate according to the full load operating parameters, calculating the second cumulative running time of the air conditioner under test in the full load testing phase; and when it is determined that the second cumulative running time is greater than the set running time, determining that the air conditioner under test meets the convergence condition of the full load testing phase.

[0160] In this embodiment, under this test state, once the air conditioner under test meets the requirement of running time meeting Trun, it is determined that the air conditioner under test meets the convergence condition of the full load test phase.

[0161] According to the above embodiments of the present invention, the energy efficiency testing method for the air conditioner further includes: when it is determined that the air conditioner under test meets the convergence conditions of the full load test stage, saving and outputting the dynamic energy efficiency test results of the air conditioner under test under the current test condition; controlling the air conditioner under test to perform a shutdown operation; and when the current test condition is not the last test condition, controlling the test bench condition control module to enter the next test condition.

[0162] In this embodiment, when it is determined that the air conditioner under test meets the convergence conditions of the full load test phase, the test bench operating condition control module executes the following working instructions: save and output the dynamic energy efficiency parameter curve of the air conditioner under test under this set of test conditions, and indicate that it is tested under full load operation; require the air conditioner to stop; and through adjustment instruction 5, require the test bench operating condition control module to enter the next test condition.

[0163] As can be seen from the above, in this embodiment of the invention, after the test bench operating condition control module completes the dynamic energy efficiency test of the air conditioner under the current test condition, the test bench operating condition control module will enter the next test condition. At this time, according to the above test condition sequence, the outdoor dry bulb temperature Ta-out, outdoor wet bulb temperature Td-out, indoor dry bulb temperature Ta-in, and indoor wet bulb temperature Td-in of the test bench will be adjusted to the target values ​​of the next test condition.

[0164] The execution order of the test conditions is as follows: Start Test → Test Condition 1 → Test Condition 2 → Test Condition 3 → Test Condition 4 → Test Condition 5 → End Test.

[0165] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0166] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0167] According to embodiments of the present invention, an energy efficiency testing apparatus for an air conditioner is also provided for implementing the above-described energy efficiency testing method for an air conditioner. This energy efficiency testing apparatus is applied to any of the above-described energy efficiency testing methods for air conditioners. Figure 5 This is a schematic diagram of an energy efficiency testing device for an air conditioner according to an embodiment of the present invention, such as... Figure 5 As shown, the device includes: an acquisition unit 501, a data collection unit 503, a processing unit 505, a judgment unit 507, a first output unit 509, and a second output unit 511. The energy efficiency testing device for this air conditioner will be described in detail below.

[0168] The acquisition unit 501 is used to acquire the heat load information of the test bench when it is determined that the test bench meets the tolerance conditions for test start-up, and to determine the building heat load of the test bench based on the heat load information using the building heat load metering module.

[0169] The acquisition unit 503 is used to acquire the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test at the current moment through the test bench data acquisition module.

[0170] The processing unit 505 is used to determine the target indoor dry-bulb temperature and target indoor wet-bulb temperature for the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters using the dynamic temperature control adjustment module. The processing unit 505 then sends the target indoor dry-bulb temperature and target indoor wet-bulb temperature for the next moment to the test bench operating condition control module. The test bench operating condition control module then adjusts the indoor dry-bulb temperature and the indoor wet-bulb temperature of the test bench to the target indoor wet-bulb temperature for the next moment.

[0171] The judgment unit 507 is used to determine whether the air conditioner under test meets the convergence condition and obtain the judgment result during the process of the air conditioner under test running according to the target instruction.

[0172] The first output unit 509 is used to output the dynamic energy efficiency test result of the air conditioner under test through the dynamic energy efficiency metering module when the judgment result includes that the air conditioner under test meets the convergence condition in the current test condition.

[0173] The second output unit 511 is used to control the air conditioner under test to enter the full load test stage when the judgment result includes that the air conditioner under test does not meet the convergence condition in the current test condition. After the full load test is completed, the dynamic energy efficiency test result of the air conditioner under test in the full load test stage is output.

[0174] It should be noted that the above-mentioned acquisition unit 501, collection unit 503, processing unit 505, judgment unit 507, first output unit 509 and second output unit 511 correspond to steps S202 to S212 in the above embodiments. The six units and the corresponding steps implement the same instances and application scenarios, but are not limited to the content disclosed in the above embodiments.

[0175] As can be seen from the above, in the scheme described in the above embodiments of the present invention, the acquisition unit can acquire the heat load information of the test bench when it is determined that the test bench meets the tolerance conditions for test start-up, and the building heat load of the test bench can be determined based on the heat load information using the building heat load metering module; the acquisition unit can acquire the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test of the test bench at the current moment through the test bench data acquisition module; the processing unit can use the dynamic temperature control adjustment module to determine the indoor target dry-bulb temperature and indoor target wet-bulb temperature of the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters, and send the indoor target dry-bulb temperature and indoor target wet-bulb temperature of the next moment to the test bench operating condition control module, so that the test bench operating condition control module can adjust the indoor dry-bulb temperature of the test bench to the indoor target dry-bulb temperature of the next moment, and adjust the indoor wet-bulb temperature of the test bench to the indoor target wet-bulb temperature of the next moment; and the judgment unit can use the dynamic temperature control adjustment module to determine the indoor target dry-bulb temperature of the test bench to the indoor target wet-bulb temperature of the next moment. During the operation of the air conditioner under test according to the target instructions, the unit determines whether the air conditioner under test meets the convergence condition and obtains the judgment result. When the judgment result indicates that the air conditioner under test meets the convergence condition in the current test condition, the first output unit outputs the dynamic energy efficiency test result of the air conditioner under test through the dynamic energy efficiency metering module. When the judgment result indicates that the air conditioner under test does not meet the convergence condition in the current test condition, the second output unit controls the air conditioner under test to enter the full load test stage. After the full load test stage is completed, the dynamic energy efficiency test result of the air conditioner under test in the full load test stage is output. This achieves the purpose of adding a building heat load metering module and a dynamic temperature control module to the test bench to dynamically adjust the indoor operating conditions based on the real-time room heat load and the real-time cooling and heating capacity of the air conditioner. It realizes the technical effect of dynamic energy efficiency testing of the air conditioner under test, fills the technical need for dynamic energy efficiency testing methods for air conditioners in this field, and enables the energy efficiency test of the air conditioner under test to reflect the actual performance level of the air conditioner.

[0176] The technical solutions provided by the embodiments of the present invention solve the technical problem that the enthalpy difference method test bench in the related art cannot test the dynamic energy efficiency and performance parameters of air conditioners, and cannot reflect the actual performance level of air conditioners.

[0177] Optionally, the acquisition unit includes: a first control module, configured to set the operating temperature of the air conditioner under test to a first preferred target set temperature in cooling mode, and control the air conditioner under test to continuously operate at the first preferred target set temperature, while simultaneously controlling the indoor fan speed of the air conditioner under test to set to the first preferred target speed, and controlling the air conditioner under test to continuously operate at the first preferred target speed, wherein the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test; and a second control module, configured to set the operating temperature of the air conditioner under test to a second preferred target set temperature in heating mode, and control the air conditioner under test to continuously operate at the second preferred target set temperature, while simultaneously controlling the indoor fan speed of the air conditioner under test to set to the second preferred target speed, and controlling the air conditioner under test to continuously operate at the second preferred target speed, wherein the compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test.

[0178] Optionally, the acquisition unit includes: a calculation module for calculating the total heat load in the building's indoor and outdoor temperature difference heat conduction load, solar radiation heat load, outdoor air infiltration heat load, and equipment / human body heat generation load from the heat load information using the building heat load metering module; and a determination module for determining the total heat load as the building heat load.

[0179] Optionally, the processing unit includes: a first calculation module, used to acquire, through the dynamic temperature control module, the building heat load calculated by the building heat load metering module, the indoor environmental parameters, the outdoor environmental parameters, and the operating parameters collected by the test bench data acquisition module after the test bench operating condition control module detects that the air conditioner under test has entered the test phase; and a second calculation module, used to calculate the target indoor dry-bulb temperature and the target indoor wet-bulb temperature at the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters using the dynamic temperature control module.

[0180] Optionally, the judgment unit includes: a first acquisition module, used to acquire a first cumulative running time of the air conditioner under test; a first determination module, used to acquire the real-time indoor wet-bulb temperature and the real-time indoor dry-bulb temperature when the first cumulative running time is greater than a first predetermined time, and to determine that the air conditioner under test meets the convergence condition when the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is within a first predetermined temperature difference range and the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is within a second predetermined temperature difference range; and a second determination module, used to determine that the air conditioner under test does not meet the convergence condition when the first cumulative running time is greater than the first predetermined time and the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is not within the first predetermined temperature difference range, or the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is not within the second predetermined temperature difference range.

[0181] Optionally, the energy efficiency testing device for the air conditioner further includes: a first adjustment module, used to continue adjusting the indoor target dry-bulb temperature and the indoor target wet-bulb temperature when the first cumulative running time is determined to be no greater than the first predetermined time, until the temperature difference between the indoor real-time wet-bulb temperature and the indoor target wet-bulb temperature is within a first predetermined temperature difference range, and the temperature difference between the indoor real-time dry-bulb temperature and the indoor target dry-bulb temperature is within a second predetermined temperature difference range.

[0182] Optionally, the control unit includes: a second adjustment module, used to control the air conditioner under test to perform a shutdown operation through the dynamic temperature control adjustment module, and send an adjustment command to the test bench operating condition control module, so as to use the test bench operating condition control module to readjust the current indoor and outdoor environmental conditions of the test bench back to the target indoor and outdoor conditions where the current test conditions are located based on the adjustment command; a second control module, used to control the air conditioner under test to restart when it is determined that the test bench has readjusted back to the target indoor and outdoor conditions where the current test conditions are located; and a third control module, used to control the air conditioner under test to operate according to the full load operating parameters after it is determined that the air conditioner under test has restarted.

[0183] Optionally, the control unit includes: a fourth control module, used to adjust the set temperature of the air conditioner under test to the lower limit of the settable temperature of the air conditioner under test in cooling mode, and control the air conditioner under test to operate at the lower limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, and the compressor, outdoor fan and throttling device of the air conditioner under test to operate freely according to the control program of the air conditioner under test; and a fifth control module, used to adjust the set temperature of the air conditioner under test to the upper limit of the settable temperature of the air conditioner under test in heating mode, and control the air conditioner under test to operate at the upper limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, and the compressor, outdoor fan and throttling device of the air conditioner under test to operate freely according to the control program of the air conditioner under test.

[0184] Optionally, the energy efficiency testing device for the air conditioner further includes: a statistics unit, used to count the second cumulative running time of the air conditioner under test during the full-load test phase while controlling the air conditioner under test to operate according to the full-load operating parameters; and a determination unit, used to determine that the air conditioner under test meets the convergence conditions of the full-load test phase when the second cumulative running time is determined to be greater than the set running time.

[0185] Optionally, the energy efficiency testing device for the air conditioner further includes: a storage unit, used to save and output the dynamic energy efficiency test results of the air conditioner under test under the current test condition when it is determined that the air conditioner under test meets the convergence conditions of the full load test phase; a control unit, also used to control the air conditioner under test to perform a shutdown operation; and the control unit, also used to control the test bench operating condition control module to enter the next test condition when the current test condition is not the last test condition.

[0186] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein the program executes the energy efficiency testing method for any of the above-described air conditioners.

[0187] Optionally, in this embodiment, the computer-readable storage medium may be located in any computer terminal in a group of computer terminals in a computer network, or in any communication device in a group of communication devices.

[0188] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: when it is determined that the test bench meets the tolerance conditions for test start-up, acquire the heat load information of the test bench, and determine the building heat load of the test bench based on the heat load information using the building heat load metering module; acquire the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the tested air conditioner at the current moment through the test bench data acquisition module; determine the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment using the dynamic temperature control adjustment module based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters, and send the indoor target dry-bulb temperature and indoor target wet-bulb temperature at the next moment to the test bench operating condition control module, so as to... The test bench's operating condition control module adjusts the indoor dry-bulb temperature and wet-bulb temperature to the target indoor dry-bulb temperature for the next moment. While the air conditioner under test operates according to the target command, it determines whether the air conditioner meets the convergence condition and obtains the result. If the result indicates that the air conditioner meets the convergence condition in the current test condition, the dynamic energy efficiency test result of the air conditioner is output through the dynamic energy efficiency metering module. If the result indicates that the air conditioner does not meet the convergence condition in the current test condition, the air conditioner is controlled to enter the full-load test phase. After the full-load test phase is completed, the dynamic energy efficiency test result of the air conditioner during the full-load test phase is output.

[0189] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: in cooling mode, the operating temperature of the air conditioner under test is set to a first preferred target set temperature, and the air conditioner under test is controlled to continuously operate at the first preferred target set temperature. At the same time, the indoor fan speed of the air conditioner under test is set to the first preferred target speed, and the air conditioner under test is controlled to continuously operate at the first preferred target speed. The compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test. In heating mode, the operating temperature of the air conditioner under test is set to a second preferred target set temperature, and the air conditioner under test is controlled to continuously operate at the second preferred target set temperature. At the same time, the indoor fan speed of the air conditioner under test is set to the second preferred target speed, and the air conditioner under test is controlled to continuously operate at the second preferred target speed. The compressor, outdoor fan, and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test.

[0190] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: using the building heat load metering module to calculate the total heat load in the heat load information, including the building indoor and outdoor temperature difference heat conduction load, solar radiation heat load, outdoor air infiltration heat load, and equipment / human body heat load; and determining the total heat load as the building heat load.

[0191] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: after the test bench operating condition control module detects that the air conditioner under test has entered the test phase, the dynamic temperature control adjustment module obtains the building heat load calculated by the building heat load metering module, the indoor environmental parameters, outdoor environmental parameters, and operating parameters collected by the test bench data acquisition module; and the dynamic temperature control adjustment module calculates the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters.

[0192] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: obtaining a first cumulative runtime of the air conditioner under test; when the first cumulative runtime is greater than a first predetermined runtime, obtaining the real-time indoor wet-bulb temperature and the real-time indoor dry-bulb temperature; when the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is within a first predetermined temperature difference range, and the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is within a second predetermined temperature difference range, determining that the air conditioner under test meets the convergence condition; when the first cumulative runtime is greater than the first predetermined runtime, if the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is not within the first predetermined temperature difference range, or if the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is not within the second predetermined temperature difference range, determining that the air conditioner under test does not meet the convergence condition.

[0193] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: when it is determined that the first cumulative running time is not greater than the first predetermined time, continue to adjust the indoor target air dry-bulb temperature and the indoor target air wet-bulb temperature until the temperature difference between the indoor real-time air wet-bulb temperature and the indoor target air wet-bulb temperature is within the first predetermined temperature difference range, and the temperature difference between the indoor real-time air dry-bulb temperature and the indoor target air dry-bulb temperature is within the second predetermined temperature difference range.

[0194] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: controlling the air conditioner under test to perform a shutdown operation through the dynamic temperature control adjustment module, and sending an adjustment command to the test bench operating condition control module, so as to use the test bench operating condition control module to readjust the current indoor and outdoor environmental conditions of the test bench back to the indoor and outdoor target conditions where the current test conditions are located based on the adjustment command; when it is determined that the test bench has readjusted back to the indoor and outdoor target conditions where the current test conditions are located, controlling the air conditioner under test to restart; after determining that the air conditioner under test has restarted, controlling the air conditioner under test to operate according to the full load operating parameters.

[0195] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: in cooling mode, adjusting the set temperature of the air conditioner under test to the lower limit of the settable temperature of the air conditioner under test, and controlling the air conditioner under test to operate at the lower limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, and the compressor, outdoor fan, and throttling device of the air conditioner under test to operate freely according to the control program of the air conditioner under test; in heating mode, adjusting the set temperature of the air conditioner under test to the upper limit of the settable temperature of the air conditioner under test, and controlling the air conditioner under test to operate at the upper limit of the settable temperature, while controlling the indoor fan of the air conditioner under test to operate at the highest settable fan speed, and the compressor, outdoor fan, and throttling device of the air conditioner under test to operate freely according to the control program of the air conditioner under test.

[0196] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: during the process of controlling the air conditioner under test to operate according to the full load operating parameters, the second cumulative running time of the air conditioner under test in the full load test phase is counted; when it is determined that the second cumulative running time is greater than the set running time, it is determined that the air conditioner under test meets the convergence condition of the full load test phase.

[0197] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: when it is determined that the air conditioner under test meets the convergence conditions of the full load test phase, save and output the dynamic energy efficiency test results of the air conditioner under test under the current test condition; control the air conditioner under test to perform a shutdown operation; and when the current test condition is not the last test condition, control the test bench condition control module to enter the next test condition.

[0198] According to another aspect of the present invention, a processor is also provided, which is used to run a program, wherein the program executes any of the above-described energy efficiency testing methods for air conditioners.

[0199] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0200] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0201] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0202] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0203] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0204] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0205] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An air conditioner energy efficiency testing system, characterized in that, include: The test bench data acquisition module, located within the test bench, communicates with the test bench operating condition control module. It is used to acquire the current indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test. The test bench is a platform for energy efficiency testing of the air conditioner under test. The indoor environmental parameters include at least: indoor dry-bulb temperature, indoor wet-bulb temperature, and real-time indoor dehumidification capacity. The outdoor environmental parameters include at least: outdoor dry-bulb temperature and outdoor wet-bulb temperature. The operating parameters include at least: power, dehumidification capacity, cooling capacity, and heating capacity. The building heat load metering module is used to collect the heat load information of the test bench and determine the building heat load of the test bench based on the heat load information. The heat load information includes at least: the indoor and outdoor temperature difference heat conduction load of the room where the test bench is located, the solar radiation heat load of the room, the outdoor air infiltration heat load of the room, and the heat generation load of the equipment / human body in the room. The dynamic temperature control module is used to determine the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment based on the building heat load, the indoor environmental parameters, the real-time cooling / heating capacity of the air conditioner under test, and the real-time dehumidification capacity of the air conditioner under test after receiving the building heat load, the indoor environmental parameters, the real-time cooling / heating capacity of the air conditioner under test, and the real-time dehumidification capacity of the air conditioner under test. The test bench operating condition control module is used to adjust and maintain the outdoor environmental conditions and the initial indoor environmental conditions to the target test conditions before the test starts. When the test starts, it is used to adjust the indoor dry-bulb temperature of the test bench to the target indoor dry-bulb temperature at the next moment, and adjust the indoor wet-bulb temperature of the test bench to the target indoor wet-bulb temperature at the next moment. The dynamic energy efficiency metering module is used to output the dynamic energy efficiency test result of the air conditioner under test when it is determined that the air conditioner under test meets the convergence condition in the current test condition, and to control the air conditioner under test to enter the full load test stage when the air conditioner under test does not meet the convergence condition in the current test condition. After the full load test stage is completed, the module outputs the dynamic energy efficiency test result of the air conditioner under test in the full load test stage.

2. The air conditioner energy efficiency testing system according to claim 1, characterized in that, Also includes: The test bench air box is connected to the inlet / outlet of the heat exchanger of the air conditioner under test, and is used to obtain at least the following information from the inlet / outlet of the heat exchanger: dry bulb temperature, wet bulb temperature, dehumidification capacity, operating power of the air conditioner under test, and cooling / heating capacity of the air conditioner under test.

3. A method for testing the energy efficiency of an air conditioner, characterized in that, The air conditioner energy efficiency testing system applied to claim 1 or 2 includes: When it is determined that the test bench meets the tolerance conditions for test start-up, the heat load information of the test bench is obtained, and the building heat load of the test bench is determined based on the heat load information using the building heat load metering module. The test bench data acquisition module collects the current indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test. The dynamic temperature control module determines the target indoor dry-bulb temperature and target indoor wet-bulb temperature for the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters. It then sends these values ​​to the test bench operating condition control module, which adjusts both the indoor dry-bulb temperature and wet-bulb temperature of the test bench to the target indoor dry-bulb temperature for the next moment. During the process of the air conditioner under test operating according to the target instruction, it is determined whether the air conditioner under test meets the convergence condition, and the determination result is obtained; When the judgment result includes that the air conditioner under test meets the convergence condition in the current test conditions, the dynamic energy efficiency test result of the air conditioner under test is output through the dynamic energy efficiency metering module. When the judgment result includes the air conditioner under test not meeting the convergence condition in the current test condition, the air conditioner under test is controlled to enter the full load test stage. After the full load test stage is completed, the dynamic energy efficiency test result of the air conditioner under test in the full load test stage is output.

4. The energy efficiency testing method for air conditioners according to claim 3, characterized in that, When the test bench is determined to meet the tolerance conditions for test startup, the test bench controls the air conditioner under test to start operating, and the air conditioner under test operates according to the target instructions, including: In cooling mode, the operating temperature of the air conditioner under test is set to the first preferred target set temperature, and the air conditioner under test is controlled to run continuously at the first preferred target set temperature. At the same time, the fan speed of the indoor fan of the air conditioner under test is set to the first preferred target speed, and the air conditioner under test is controlled to run continuously at the first preferred target speed. The compressor, outdoor fan and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test. In heating mode, the operating temperature of the air conditioner under test is set to the second preferred target set temperature, and the air conditioner under test is controlled to run continuously at the second preferred target set temperature. At the same time, the fan speed of the indoor fan of the air conditioner under test is set to the second preferred target speed, and the air conditioner under test is controlled to run continuously at the second preferred target speed. The compressor, outdoor fan and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test.

5. The energy efficiency testing method for an air conditioner according to claim 3, characterized in that, Acquiring the heat load information of the test bench and determining the building heat load of the test bench based on the heat load information using the building heat load metering module includes: The building heat load metering module is used to calculate the sum of the heat load information, including the building's indoor and outdoor temperature difference heat conduction load, the solar radiation heat load, the outdoor air infiltration heat load, and the equipment / human body heat generation load. The total amount of heat is determined as the building heat load.

6. The energy efficiency testing method for an air conditioner according to claim 3, characterized in that, The dynamic temperature control module determines the target indoor dry-bulb temperature and target indoor wet-bulb temperature for the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters, including: After the test bench operating condition control module detects that the air conditioner under test has entered the testing phase, the dynamic temperature control adjustment module obtains the building heat load calculated by the building heat load metering module, the indoor environmental parameters collected by the test bench data acquisition module, the outdoor environmental parameters, and the operating parameters. The dynamic temperature control module calculates the target dry-bulb temperature and target wet-bulb temperature of the indoor air at the next moment based on the building heat load, the indoor environmental parameters, the outdoor environmental parameters, and the operating parameters.

7. The energy efficiency testing method for an air conditioner according to claim 3, characterized in that, Determine whether the tested air conditioner meets the convergence condition and obtain the determination result, including: Obtain the first cumulative runtime of the air conditioner under test; When the first cumulative running time is greater than the first predetermined time, the indoor real-time wet-bulb temperature and indoor real-time dry-bulb temperature are acquired. When the temperature difference between the indoor real-time wet-bulb temperature and the indoor target wet-bulb temperature is within the first predetermined temperature difference range, and the temperature difference between the indoor real-time dry-bulb temperature and the indoor target dry-bulb temperature is within the second predetermined temperature difference range, it is determined that the tested air conditioner meets the convergence condition. If the temperature difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is not within the first predetermined temperature difference range when the first cumulative runtime is greater than the first predetermined runtime, or if the temperature difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is not within the second predetermined temperature difference range, then the tested air conditioner is determined not to meet the convergence condition.

8. The energy efficiency testing method for an air conditioner according to claim 7, characterized in that, Also includes: When it is determined that the first cumulative running time is not greater than the first predetermined time, the indoor target dry-bulb temperature and the indoor target wet-bulb temperature are adjusted until the temperature difference between the indoor real-time wet-bulb temperature and the indoor target wet-bulb temperature is within the first predetermined temperature difference range, and the temperature difference between the indoor real-time dry-bulb temperature and the indoor target dry-bulb temperature is within the second predetermined temperature difference range.

9. The energy efficiency testing method for an air conditioner according to claim 3, characterized in that, Controlling the air conditioner under test to enter the full-load test phase includes: The dynamic temperature control module controls the air conditioner under test to perform a shutdown operation and sends an adjustment command to the test bench operating condition control module. The test bench operating condition control module then uses the adjustment command to readjust the current indoor and outdoor environmental conditions of the test bench back to the target indoor and outdoor conditions where the current test conditions are located. When the test bench is determined to be readjusted back to the indoor / outdoor target conditions where the current test conditions are located, the air conditioner under test is controlled to restart. After confirming that the air conditioner under test has restarted, control the air conditioner under test to operate according to the full load operating parameters.

10. The energy efficiency testing method for an air conditioner according to claim 9, characterized in that, Controlling the tested air conditioner to operate according to full-load operating parameters includes: In cooling mode, the set temperature of the air conditioner under test is adjusted to the lower limit of the settable temperature of the air conditioner under test, and the air conditioner under test is controlled to operate according to the lower limit of the settable temperature. At the same time, the indoor fan of the air conditioner under test is controlled to operate at the highest settable fan speed. The compressor, outdoor fan and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test. In heating mode, the set temperature of the air conditioner under test is adjusted to the upper limit of the settable temperature of the air conditioner under test, and the air conditioner under test is controlled to operate at the upper limit of the settable temperature. At the same time, the indoor fan of the air conditioner under test is controlled to operate at the highest settable fan speed. The compressor, outdoor fan and throttling device of the air conditioner under test operate freely according to the control program of the air conditioner under test.

11. The energy efficiency testing method for an air conditioner according to claim 9, characterized in that, Also includes: During the process of controlling the air conditioner under test to operate according to the full-load operating parameters, the second cumulative running time of the air conditioner under test during the full-load test phase is calculated. When the second cumulative runtime is determined to be greater than the set runtime, the air conditioner under test is determined to meet the convergence condition of the full load test phase.

12. The energy efficiency testing method for an air conditioner according to claim 11, characterized in that, When determining that the air conditioner under test meets the convergence conditions of the full-load test phase, the method further includes: Save and output the dynamic energy efficiency test results of the air conditioner under test under the current test conditions; Control the tested air conditioner to perform a shutdown operation; When the current test condition is not the last test condition, the test bench condition control module is controlled to enter the next test condition.

13. An energy efficiency testing device for an air conditioner, characterized in that, The energy efficiency testing method applied to the air conditioner according to any one of claims 3 to 12 includes: The acquisition unit is used to acquire the heat load information of the test bench when it is determined that the test bench meets the tolerance conditions for test start-up, and to determine the building heat load of the test bench based on the heat load information using the building heat load metering module. The data acquisition unit is used to acquire the indoor environmental parameters, outdoor environmental parameters, and operating parameters of the air conditioner under test at the current moment through the test bench data acquisition module. The processing unit is used to determine the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment based on the building heat load, indoor environmental parameters, outdoor environmental parameters, and operating parameters using the dynamic temperature control module, and to send the target indoor dry-bulb temperature and target indoor wet-bulb temperature at the next moment to the test bench operating condition control module, so that the test bench operating condition control module can adjust the indoor dry-bulb temperature of the test bench to the target indoor dry-bulb temperature at the next moment, and adjust the indoor wet-bulb temperature of the test bench to the target indoor wet-bulb temperature at the next moment. The judgment unit is used to determine whether the air conditioner under test meets the convergence condition during the operation of the air conditioner under test according to the target instruction, and to obtain the judgment result. The first output unit is used to output the dynamic energy efficiency test result of the air conditioner under test through the dynamic energy efficiency metering module when the judgment result includes that the air conditioner under test meets the convergence condition in the current test condition. The second output unit is used to control the air conditioner under test to enter the full load test phase when the judgment result includes that the air conditioner under test does not meet the convergence condition in the current test condition, and to output the dynamic energy efficiency test result of the air conditioner under test in the full load test phase after the test is completed.

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