Air conditioner testing method and device, medium and enthalpy difference laboratory

Abstract

The invention provides an air conditioner testing method and device, a medium and an enthalpy difference laboratory, and relates to the technical field of air conditioners, and the testing method comprises the steps that environment parameters of the enthalpy difference laboratory and set operation parameters of a to-be-tested air conditioner in the enthalpy difference laboratory are obtained; compensating the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operation parameters to obtain a target test environment for testing the air conditioner to be tested; and testing the power consumption of the to-be-tested air conditioner in the target test environment. According to the method, the to-be-tested air conditioner is tested in the enthalpy difference laboratory, the thermal load difference caused by different laboratory enclosure materials and structures can be reduced, the target test environment is closer to the actual use environment of the air conditioner by compensating the indoor space load, the error between the test energy consumption and the actual operation energy consumption of the air conditioner is reduced, and the test efficiency is improved. And the accuracy and the reliability of a test result are effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air conditioner testing, and particularly to an air conditioner testing method, device, medium, and enthalpy difference laboratory. Background Art

[0002] In the related art, there are differences in the room area size, room layout, and the enclosure structure and materials of the test bench among different manufacturers' air conditioner comfort test benches. Therefore, even for the same air conditioner tested on different comfort test benches, there are still significant differences in the test results of its power consumption. Summary of the Invention

[0003] To overcome the problems existing in the related art, the present disclosure provides an air conditioner testing method, device, medium, and enthalpy difference laboratory.

[0004] According to the first aspect of the embodiments of the present disclosure, an air conditioner testing method is provided, including: Obtaining the environmental parameters of the enthalpy difference laboratory and the set operating parameters of the air conditioner to be tested in the enthalpy difference laboratory; Compensating the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters to obtain a target test environment for testing the air conditioner to be tested; Testing the power consumption of the air conditioner to be tested in the target test environment.

[0005] Optionally, the compensating the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters to obtain a target test environment for testing the air conditioner to be tested includes: Determining a preset load correction amount, where the preset load correction amount includes: a first load amount for characterizing the heat generated by the heat source on the indoor space of the enthalpy difference laboratory, and / or, a second load amount for characterizing the heat exchange between the indoor and outdoor spaces of the indoor space; Compensating the indoor space load of the enthalpy difference laboratory according to the set operating parameters, the environmental parameters, and the preset load correction amount to obtain the target test environment of the enthalpy difference laboratory.

[0006] Optionally, the environmental parameters include the indoor temperature and the outdoor temperature of the enthalpy difference laboratory; the compensating the indoor space load of the enthalpy difference laboratory according to the set operating parameters, the environmental parameters, and the preset load correction amount to obtain the target test environment of the enthalpy difference laboratory includes: Determining the sensible heat cooling capacity difference of the air conditioner to be tested within a first preset duration according to the indoor temperature; Determining the indoor temperature change amount and the outdoor temperature change amount within the first preset duration according to the indoor temperature and the outdoor temperature; Determine a load compensation amount according to the indoor temperature change amount, the outdoor temperature change amount, the sensible heat cooling capacity difference, the set operating parameters, and the preset load correction amount; Compensate the indoor space load of the enthalpy difference laboratory according to the load compensation amount to obtain the target test environment of the enthalpy difference laboratory.

[0007] Optionally, the indoor temperature includes the indoor dry-bulb temperature and the indoor wet-bulb temperature; determining the sensible heat cooling capacity difference of the air conditioner to be tested within a first preset duration according to the indoor temperature includes: Determine the moisture content of the air according to the indoor dry-bulb temperature and the indoor wet-bulb temperature; Determine the sensible heat cooling capacity difference of the air conditioner to be tested within the first preset duration according to the moisture content of the air at the first moment, the moisture content of the air at the second moment, the indoor dry-bulb temperature at the first moment, and the indoor dry-bulb temperature at the second moment, with a time interval of the first preset duration between the first moment and the second moment.

[0008] Optionally, determining the moisture content of the air according to the indoor dry-bulb temperature and the indoor wet-bulb temperature includes: When the indoor wet-bulb temperature is greater than or equal to a first preset value, determine the moisture content of the air according to the indoor dry-bulb temperature, the indoor wet-bulb temperature, and a first moisture content model; When the indoor wet-bulb temperature is less than the first preset value, determine the moisture content of the air according to the indoor dry-bulb temperature, the indoor wet-bulb temperature, and a second moisture content model, where the model coefficients of the first moisture content model and the second moisture content model are different.

[0009] Optionally, the indoor temperature change amount includes the indoor dry-bulb temperature change amount and the indoor wet-bulb temperature change amount, and the outdoor temperature change amount includes the outdoor dry-bulb temperature change amount and the outdoor wet-bulb temperature change amount; the preset load correction amount includes a heat load correction amount and a moisture load correction amount, the heat load correction amount includes the heat load amount in the first load amount and / or the heat load amount in the second load amount, and the moisture load correction amount includes the moisture load amount in the first load amount and / or the moisture load amount in the second load amount; Determining the load compensation amount according to the indoor temperature change amount, the outdoor temperature change amount, the sensible heat cooling capacity difference, the set operating parameters, and the preset load correction amount includes: Determine a heat load compensation amount according to the indoor dry-bulb temperature change amount, the outdoor dry-bulb temperature change amount, the sensible heat cooling capacity difference, the heat load correction amount, and the set operating parameters; Determine the wet load compensation amount according to the indoor wet-bulb temperature change amount, the outdoor wet-bulb temperature change amount, the wet load correction amount, and the sensible heat cooling capacity difference.

[0010] Optionally, the load compensation amount includes a heat load compensation amount and a wet load compensation amount, and the method further includes: Determine the heat load compensation amount and the wet load compensation amount corresponding to the third moment, and the heat load compensation amount and the wet load compensation amount corresponding to the fourth moment; According to the heat load compensation amount corresponding to the third moment and the heat load compensation amount corresponding to the fourth moment, determine the heat load compensation amount difference, and according to the wet load compensation amount corresponding to the third moment and the wet load compensation amount corresponding to the fourth moment, determine the wet load compensation amount difference; When the heat load compensation amount difference is less than a second preset value and the wet load compensation amount difference is less than a third preset value, determine the indoor dry-bulb temperature and the indoor wet-bulb temperature corresponding to the target moment, where the target moment is any one of the third moment and the fourth moment; Control the indoor dry-bulb temperature and the indoor wet-bulb temperature corresponding to the target moment to remain unchanged until the operation duration of the air conditioner to be tested reaches a second preset duration.

[0011] Optionally, the enthalpy difference laboratory includes a load generator for controlling the indoor space load of the enthalpy difference laboratory; compensating the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters, including: Determine the load compensation amount at least according to the environmental parameters and the set operating parameters; According to the load compensation amount, control the load generator to compensate the indoor space load of the enthalpy difference laboratory.

[0012] Optionally, compensating the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters includes: Compensate the indoor space load of the enthalpy difference laboratory according to the environmental parameters, the set operating parameters, and a room load correction coefficient, where the room load correction coefficient is determined according to the rated cooling capacity of the air conditioner to be tested.

[0013] Optionally, testing the power consumption of the air conditioner to be tested in the target test environment includes: When the operation duration of the air conditioner to be tested reaches a second preset duration, output the test result of the power consumption of the air conditioner to be tested.

[0014] According to a second aspect of the embodiments of the present disclosure, there is provided an air conditioner testing device, including: An acquisition module, configured to acquire environmental parameters of an enthalpy difference laboratory and set operating parameters of an air conditioner to be tested in the enthalpy difference laboratory; A compensation module, configured to compensate for the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters, so as to obtain a target test environment for testing the air conditioner to be tested; A test module, configured to test the power consumption of the air conditioner to be tested in the target test environment.

[0015] According to a third aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, on which computer program instructions are stored, and when the program instructions are executed by a processor, the air conditioner test method described in the first aspect of the embodiments of the present disclosure.

[0016] According to a fourth aspect of the embodiments of the present disclosure, there is provided an enthalpy difference laboratory, including: A load generator, configured to compensate for the indoor load of the enthalpy difference laboratory; An installation device, configured to install an air conditioner to be tested; A control device, configured to execute the air conditioner test method described in the first aspect of the embodiments of the present disclosure to test the power consumption of the air conditioner to be tested.

[0017] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: The present disclosure compensates for the indoor space load of the enthalpy difference laboratory through the environmental parameters of the enthalpy difference laboratory and the set operating parameters of the air conditioner to be tested in the enthalpy difference laboratory, so as to obtain a target test environment for testing the air conditioner to be tested, and tests the power consumption of the air conditioner to be tested in the target test environment. In this way, by testing the air conditioner to be tested in the enthalpy difference laboratory, the thermal load difference caused by different laboratory enclosure materials and structures can be reduced, and by compensating for the indoor space load, the target test environment is closer to the actual use environment of the air conditioner, reducing the error between the test energy consumption and the actual operation energy consumption of the air conditioner, and effectively improving the accuracy and reliability of the test results.

[0018] It should be understood that the above general description and subsequent detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0020] Figure 1 is a flowchart of an air conditioner test method shown according to an exemplary embodiment.

[0021] Figure 2 It is a flowchart of an air conditioner testing method shown according to an exemplary embodiment.

[0022] Figure 3 It is a schematic diagram of the position of the air deflector of the air conditioner during testing shown according to an exemplary embodiment.

[0023] Figure 4 It is a schematic diagram of an enthalpy difference laboratory shown according to an exemplary embodiment.

[0024] Figure 5 It is a block diagram of an air conditioner testing device shown according to an exemplary embodiment.

[0025] Figure 6 It is a block diagram of a control device for air conditioner testing shown according to an exemplary embodiment. Detailed implementation mode

[0026] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are only examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0027] The air conditioner performance test can be carried out in an enthalpy difference laboratory or a comfort laboratory. A comfort laboratory is a laboratory that simulates the user's home scenario and is mainly used to test the performance of the air conditioner in terms of comfort, such as temperature distribution, air flow organization, humidity control, etc. The enthalpy difference laboratory can accurately measure performance indicators such as the cooling capacity, heating capacity, and energy consumption of the air conditioner and is mainly used for performance evaluation and energy efficiency testing.

[0028] The test spaces of both the enthalpy difference laboratory and the comfort laboratory can be divided into an indoor side space and an outdoor side space. The environmental parameters of the indoor side space and the outdoor side space can be regulated by independent conditioners or by a common conditioner to meet the specified test conditions for air conditioner performance testing.

[0029] Due to the differences in room area size, room layout, and the enclosure materials and structures of the test benches in comfort laboratories used by different manufacturers, when the same air conditioner equipment is tested in comfort laboratories of different manufacturers, it will still cause inconsistent test results of power consumption, and even the difference exceeds 10%. The enthalpy difference laboratory generally uses enclosure materials with better heat insulation performance. Therefore, the heat insulation performance and heat preservation performance of the enthalpy difference laboratory are better than those of the comfort laboratory.

[0030] Refer to Figure 1 , Figure 1is a flowchart of an air conditioner testing method shown according to an exemplary embodiment. As Figure 1 shown, the air conditioner testing method includes the following steps.

[0031] In step S101, obtain the environmental parameters of the enthalpy difference laboratory and the set operating parameters of the air conditioner to be tested in the enthalpy difference laboratory; In step S102, compensate for the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters to obtain the target test environment for testing the air conditioner to be tested; In step S103, test the power consumption of the air conditioner to be tested in the target test environment.

[0032] Exemplarily, the environmental parameters may include temperature parameters, humidity parameters, etc. in the enthalpy difference laboratory. Among them, the corresponding temperature parameters in the enthalpy difference laboratory may include the indoor space temperature and the outdoor space temperature, and the corresponding humidity parameters in the enthalpy difference laboratory may include the indoor space humidity and the outdoor space humidity. The temperature parameters may include dry bulb temperature, wet bulb temperature, etc.

[0033] Exemplarily, the dry bulb temperature can be obtained by a dry bulb temperature sensor arranged in the enthalpy difference laboratory, and the wet bulb temperature can be obtained by a wet bulb temperature sensor arranged in the enthalpy difference laboratory. The humidity parameters can be obtained by a hygrometer and a humidity sensor arranged in the enthalpy difference laboratory, or can be calculated from the dry bulb temperature and the wet bulb temperature. The environmental parameters have an impact on the operating efficiency and energy consumption of the air conditioner. For example, the dry bulb temperature reflects the temperature of the air, and the wet bulb temperature reflects the humidity and enthalpy of the air.

[0034] Exemplarily, the set operating parameters are the operating parameters of the air conditioner to be tested during the test. The set operating parameters include the operating mode, the set temperature, the wind speed level, the position of the air deflector, etc. The set operating parameters can be used to control the operating state and energy consumption performance of the air conditioner. Among them, the operating mode may include the heating mode or the cooling mode, or the operating mode may include the energy-saving mode and the non-energy-saving mode, etc.

[0035] Exemplarily, the indoor space load refers to the load state of the indoor side space in the enthalpy difference laboratory. Among them, the space load generally includes the heat load and the moisture load. In the initial state of the enthalpy difference laboratory, whether the air conditioner to be tested is operating or not, the indoor side space and the outdoor side space both have an initial load state. Compensating for the indoor space load can make the environmental conditions of the laboratory closer to the actual use scenario by adjusting the heat load and the moisture load in the laboratory. Among them, the indoor space load can be compensated according to the environmental parameters and the set operating parameters.

[0036] For example, the target test environment refers to the test environment in the laboratory after load compensation, which is more consistent with the load in the actual use scenario. Testing the power consumption of the air conditioner in this environment can more accurately reflect its actual operating energy consumption.

[0037] For example, before testing the air conditioner to be tested, the control condition machine or load generator adjusts the indoor and outdoor spaces of the enthalpy difference laboratory to the predetermined test conditions, including adjusting parameters such as temperature and humidity. And the air conditioner can be controlled to run with the set operating parameters. When the air conditioner is running, the load of the indoor space of the laboratory can be compensated according to the obtained environmental parameters of the enthalpy difference laboratory and the set operating parameters of the air conditioner to be tested. In the target test environment after load compensation, the air conditioner to be tested continues to operate based on the set operating parameters, and the power consumption is tested under conditions closer to the actual operating environment, which can ensure the accuracy and reliability of the test results.

[0038] The present invention compensates for the indoor space load of the enthalpy difference laboratory through the environmental parameters of the enthalpy difference laboratory and the set operating parameters of the air conditioner to be tested in the enthalpy difference laboratory, obtains the target test environment for testing the air conditioner to be tested, and tests the power consumption of the air conditioner to be tested under the target test environment. In this way, by testing the air conditioner to be tested in the enthalpy difference laboratory, the difference in heat load caused by different laboratory enclosure materials and structures can be reduced, and by compensating for the indoor space load, the target test environment is made closer to the actual use environment of the air conditioner, reducing the error between the test energy consumption and the actual operating energy consumption of the air conditioner, and effectively improving the accuracy and reliability of the test results.

[0039] In some embodiments, the indoor space load of the enthalpy difference laboratory is compensated at least according to the environmental parameters and the set operating parameters to obtain the target test environment for the air conditioner to be tested, including: Determine a preset load correction amount, the preset load correction amount includes: a first load amount used to characterize the heat generated by the heat source on the indoor space of the enthalpy difference laboratory, and / or a second load amount used to characterize the heat exchange between the indoor space and the outside of the indoor space on the indoor space; According to the set operating parameters, environmental parameters and preset load correction, the indoor space load of the enthalpy difference laboratory is compensated to obtain the target test environment of the enthalpy difference laboratory.

[0040] For example, the preset load correction refers to a correction value predetermined during the test process for adjusting the indoor space load. The preset load correction can be used to compensate for the impact of factors such as heat generation or heat loss by the heat source and heat exchange between the indoor space and the indoor space on the indoor space load.

[0041] Among them, the first load quantity can be used to characterize the load quantity increased to the indoor space of the enthalpy difference laboratory due to the heat generated by the heat source. For example, when the air conditioner is running, people, animals, and heat-generating equipment in the indoor space will all generate heat, and this part of the heat will dissipate into the indoor space, causing an increase in the indoor space load. In addition, solar radiation will also generate a heat load on the indoor space.

[0042] Among them, the second load quantity can be used to characterize the load quantity increased to the indoor space due to the heat exchange inside and outside the indoor space. For example, the load exchange caused by air infiltration through door and window gaps, walls, ventilation systems, etc. For example, when the air conditioner is running, part of the heat in the indoor space may dissipate to the outdoor space, or the heat in the outdoor space may be transferred to the indoor space.

[0043] Exemplarily, the preset load correction quantity can only include the first load quantity. The preset load correction quantity can only include the second load quantity. The preset load correction quantity can include both the first load quantity and the second load quantity at the same time, so as to ensure that the target test environment after compensating the load is closer to the actual use environment of the air conditioner, and ensure the accuracy and reliability of the air conditioner power consumption test.

[0044] Exemplarily, the preset load correction quantity can be obtained by pre-testing or measuring, or can be set by the tester according to the actual situation. For example, the preset load correction quantity corresponding to solar radiation can be obtained by measuring instruments or can be set as a fixed value. In addition, the solar radiation load at different times during the test can also be determined according to the mapping table between the solar radiation load and time and geographical location in the standard test process.

[0045] Exemplarily, the first load quantity and the second load quantity can be used to compensate for the influence of the heat generated by the heat source and the heat exchange inside and outside the indoor space on the indoor space load respectively. And according to parameters such as the set operating parameters of the test air conditioner, the environmental parameters of the enthalpy difference laboratory, and the preset load correction quantity, the load compensation quantity can be determined. And the indoor space load of the enthalpy difference laboratory is compensated to obtain a target test environment for testing the air conditioner to be tested and closer to the actual use environment of the air conditioner.

[0046] The present disclosure compensates for the influence of the heat dissipated by the heat source and the heat exchange inside and outside the indoor space on the indoor space load through the preset load correction quantity, making the test environment closer to the actual use scenario. This reduces the test error caused by the difference in the test bench and improves the accuracy and reliability of the test results.

[0047] In some embodiments, compensating the indoor space load of the enthalpy difference laboratory according to the set operating parameters, environmental parameters, and preset load correction quantity to obtain the target test environment of the enthalpy difference laboratory includes: Determining the load compensation quantity according to the set operating parameters, environmental parameters, and preset load correction quantity; Compensate the indoor space load of the enthalpy difference laboratory according to the load compensation amount to obtain the target test environment of the enthalpy difference laboratory.

[0048] Exemplarily, the load compensation amount is the value for compensating the indoor space load. It can be based on the set operating parameters, environmental parameters, and preset load correction amount. According to the set operating parameters, environmental parameters, and preset load correction amount, the load compensation amount for the indoor space can be determined. And according to the load compensation amount, control the indoor load generator to input or remove the corresponding load amount into the indoor space to make the indoor environmental parameters reach the target test environment.

[0049] It can be understood that when the air conditioner under test is running, the load compensation amount determined according to the set operating parameters, environmental parameters at different times, and preset load correction amount can be used to compensate the indoor space load of the enthalpy difference laboratory in real time, so as to simulate the heat actually generated by the heat source and the additional load on the indoor space due to heat exchange inside and outside the indoor space.

[0050] For example, the preset load correction amount at the first moment is 25W, and the load correction amount based on the environmental parameters and set operating parameters is 15W. When the indoor space load at the first moment is 200W, after compensating the indoor space load at the first moment, the indoor space load at the second moment is 240W. Then, determine that the preset load correction amount at the second moment is 15W, and the load correction amount based on the environmental parameters and set operating parameters is 10W. After compensating the indoor space load of 240W at the second moment, the indoor space load at the next moment is 265W.

[0051] In some embodiments, the environmental parameters include the indoor temperature and outdoor temperature of the enthalpy difference laboratory; determining the load compensation amount according to the set operating parameters, environmental parameters, and preset load correction amount includes: Determine the sensible heat cooling capacity difference of the air conditioner under test within the first preset duration according to the indoor temperature; Determine the indoor temperature change amount and outdoor temperature change amount within the first preset duration according to the indoor temperature and outdoor temperature; Determine the load compensation amount according to the indoor temperature change amount, outdoor temperature change amount, sensible heat cooling capacity difference, set operating parameters, and preset load correction amount.

[0052] Exemplarily, sensible cooling capacity refers to the heat that only increases or decreases the kinetic energy of the molecules of an object during the process of heat absorption or release by the object, thereby increasing or decreasing the temperature of the substance without a change in the physical state of the substance. Among them, the sensible cooling capacity difference is the difference in the sensible cooling capacity of the air conditioner within the first preset duration during the operation of the air conditioner. The sensible cooling capacity difference can reflect the influence of the air conditioner on the indoor air temperature within the first preset duration. For example, the sensible cooling capacity of the air conditioner to be measured at the first moment can be determined according to the indoor temperature at the first moment, and the sensible cooling capacity of the air conditioner to be measured at the second moment can be determined according to the indoor temperature at the second moment, where the first moment and the second moment are separated by the first preset duration. The sensible cooling capacity difference is obtained based on the sensible cooling capacities of the air conditioner to be measured corresponding to the first moment and the second moment respectively.

[0053] Exemplarily, the indoor temperature change amount can be determined according to the difference between the indoor temperatures at the initial moment and the end moment of the first preset duration, and the outdoor temperature change amount can be determined according to the difference between the outdoor temperatures at the initial moment and the end moment of the first preset duration.

[0054] Exemplarily, for the indoor temperature change amount, the temperatures collected by all the dry bulb temperature sensors in the indoor space of the enthalpy difference laboratory at the current moment can be obtained to get the average indoor temperature at the current moment, and based on the average indoor temperature at the moment before the current moment and separated from the current moment by the first preset duration, the indoor temperature change amount can be determined. The determination method of the outdoor temperature change amount is similar to that of the indoor temperature change amount, and will not be elaborated here.

[0055] In some embodiments, the indoor temperature includes the indoor dry bulb temperature and the indoor wet bulb temperature; determining the sensible cooling capacity difference of the air conditioner to be measured within the first preset duration according to the indoor temperature includes: Determining the moisture content of the air according to the indoor dry bulb temperature and the indoor wet bulb temperature; Determining the sensible cooling capacity difference of the air conditioner to be measured within the first preset duration according to the moisture content of the air at the first moment, the moisture content of the air at the second moment, the indoor dry bulb temperature at the first moment, and the indoor dry bulb temperature at the second moment, where the first moment and the second moment are separated by the first preset duration.

[0056] Exemplarily, the dry bulb temperature is the actual temperature of the air, which refers to the index for simply measuring the air temperature without considering the air humidity. The wet bulb temperature is the temperature measured by a wet bulb thermometer, that is, the adiabatic saturation temperature when the air is in direct contact with water and reaches a stable thermal and moisture equilibrium under the condition of constant pressure and adiabatic.

[0057] Exemplarily, the dry bulb temperature can be measured by a dry bulb temperature sensor, and the wet bulb temperature can be measured by a wet bulb temperature sensor. The indoor dry bulb temperature is the dry bulb temperature of the indoor space in the enthalpy difference laboratory, and the indoor wet bulb temperature is the wet bulb temperature of the indoor space in the enthalpy difference laboratory.

[0058] Exemplarily, the first moment and the second moment are any moments during the air conditioner test process, where there is a first preset time interval between the first moment and the second moment. The first preset time interval can be set according to the actual situation. For example, the first preset time interval is 5 minutes.

[0059] Exemplarily, the moisture content of air refers to the mass of water vapor contained in 1 kg of dry air in moist air, and can be used to reflect the content of water vapor in the air. Among them, the moisture content of air is affected by the partial pressure of water vapor and the relative humidity, and the relative humidity can be obtained through the atmospheric pressure. In some regions, the atmospheric pressure is basically a fixed value, that is, the moisture content of air can be mainly related to the partial pressure of water vapor.

[0060] In some examples, the moisture content of air can also be obtained through the indoor dry-bulb temperature and the wet-bulb temperature. Then, according to the saturated moisture content, the indoor dry-bulb temperature and the indoor wet-bulb temperature, the moisture content of air can be determined.

[0061] In some embodiments, determining the moisture content of air according to the indoor dry-bulb temperature and the indoor wet-bulb temperature includes: When the indoor wet-bulb temperature is greater than or equal to the first preset value, determining the moisture content of air according to the indoor dry-bulb temperature, the indoor wet-bulb temperature and the first moisture content model; When the indoor wet-bulb temperature is less than the first preset value, determining the moisture content of air according to the indoor dry-bulb temperature, the indoor wet-bulb temperature and the second moisture content model, and the model coefficients of the first moisture content model and the second moisture content model are different.

[0062] Exemplarily, the first preset value can be set according to relevant standard regulations, or can be set according to the actual situation. For example, the first preset value can be set to 0 °C, 5 °C, etc., and there is no limitation here.

[0063] Exemplarily, when the indoor wet-bulb temperature is greater than or equal to the first preset value, the moisture content of air can be determined through the first moisture content model; when the indoor wet-bulb temperature is less than the first preset value, the moisture content of air can be determined through the second moisture content model. Among them, both the first moisture content model and the second moisture content model can adopt the moisture content calculation models in the prior art, and testers can set according to the actual situation, and there is no limitation here.

[0064] In some examples, taking the first preset value as 0 °C as an example, when the indoor wet-bulb temperature ≥ 0 °C, the moisture content of air is calculated through calculation formula 1: ; when the indoor wet-bulb temperature < 0 °C, the moisture content of air can be calculated through calculation formula 2: , where, Tw 1 represents the indoor wet-bulb temperature, Ta 1Td represents the indoor dry-bulb temperature, and ds represents the saturated moisture content. The saturated moisture content can be obtained through calculation formula 3: ; where T represents the thermodynamic temperature of the moist air, and can be obtained through calculation formula 4: , Ta 1 represents the indoor dry-bulb temperature, C 1 -C 6 is the model correction coefficient, which can be obtained by fitting according to actual tests.

[0065] Exemplarily, calculation formula 1 is the first moisture content model, and calculation formula 2 is the second moisture content model. The moisture content of the air at the first moment and the second moment is calculated according to the first moisture content model and / or the second moisture content model, and then the sensible cooling capacity of the air conditioner at the first moment and the second moment can be obtained through the following calculation formula 5: , based on the sensible cooling capacity of the air conditioner at the first moment and the second moment, the difference in sensible cooling capacity within the first preset duration can be obtained .

[0066] In some embodiments, the indoor temperature change amount includes the indoor dry-bulb temperature change amount and the indoor wet-bulb temperature change amount, and the outdoor temperature change amount includes the outdoor dry-bulb temperature change amount and the outdoor wet-bulb temperature change amount; the preset load correction amount includes the heat load correction amount and the moisture load correction amount, the heat load correction amount includes the heat load amount in the first load amount and / or the heat load amount in the second load amount, and the moisture load correction amount includes the moisture load amount in the first load amount and / or the moisture load amount in the second load amount; According to the indoor temperature change amount, the outdoor temperature change amount, the difference in sensible cooling capacity, the set operating parameters, the heat load correction amount, and the preset load correction amount, determine the load compensation amount, including: According to the indoor dry-bulb temperature change amount, the outdoor dry-bulb temperature change amount, the difference in sensible cooling capacity, and the set operating parameters, determine the heat load compensation amount; According to the indoor wet-bulb temperature change amount, the outdoor wet-bulb temperature change amount, the moisture load correction amount, and the difference in sensible cooling capacity, determine the moisture load compensation amount.

[0067] Exemplarily, the indoor dry-bulb temperature change amount is the change value of the indoor dry-bulb temperature within the first preset duration; the indoor wet-bulb temperature change amount is the change value of the indoor wet-bulb temperature within the first preset duration; the outdoor dry-bulb temperature change amount is the change value of the outdoor dry-bulb temperature within the first preset duration; the outdoor wet-bulb temperature change amount is the change value of the outdoor wet-bulb temperature within the first preset duration.

[0068] Exemplarily, the preset load correction amount may include a first load amount for characterizing the heat generated by the heat source and causing to the indoor space of the enthalpy difference laboratory, and / or a second load amount for characterizing the heat exchange between the inside and outside of the indoor space and causing to the indoor space. The first load amount may include a first heat load amount and a first moisture load amount, and the second load amount may include a second heat load amount and a second moisture load amount.

[0069] Exemplarily, the preset load correction amount may also be divided into a heat load correction amount and a moisture load correction amount. Among them, when the preset load correction amount only includes the first load amount, the heat load correction amount is the first heat load amount, and the moisture load correction amount is the first moisture load amount. When the preset load correction amount only includes the second load amount, the heat load correction amount is the second heat load amount, and the moisture load correction amount is the second moisture load amount. When the preset load correction amount includes both the first load amount and the second load amount, the heat load correction amount is the sum of the first heat load amount and the second heat load amount, and the moisture load correction amount is the sum of the first moisture load amount and the second moisture load amount.

[0070] Exemplarily, the set operating parameters are the set parameters during air conditioner operation, such as the operating mode, set temperature, air volume level, etc. The preset load correction amount is used to compensate for the influence of heat dissipation from the heat source and heat exchange between the inside and outside. The heat load compensation amount is the heat load to be supplemented or removed from the indoor space to maintain a stable indoor temperature. The moisture load compensation amount is the moisture load to be supplemented or removed from the indoor space to maintain a stable indoor humidity.

[0071] Exemplarily, the heat load compensation amount can be calculated based on the indoor dry-bulb temperature change amount, outdoor dry-bulb temperature change amount, sensible heat cooling capacity difference, set operating parameters, and preset load correction amount. For example, the set operating parameters include the set temperature, and the preset load correction amount includes the solar radiation heat load value and the heat load values brought by indoor heat dissipation equipment, human body heat dissipation, lighting, cooking activities, etc., as well as the heat load value brought by air infiltration, etc. The heat load compensation amount can be calculated based on the following calculation formula 6.

[0072]

[0073] Among them, ω 0 -ω 6 represents the model correction coefficient, which can be obtained by fitting experimental data in advance; represents the indoor dry-bulb temperature change amount during the period from t to ; represents the outdoor dry-bulb temperature change amount during the period from t to ; represents the solar radiation heat load value and / or the heat load value brought by air infiltration, etc. during the period from t to ; represents to The heat load values brought by indoor heat dissipation equipment, human body heat dissipation, lighting, cooking activities, etc. within a time period; Indicates the set temperature of the air conditioner; Indicates from t to The difference in sensible cooling capacity of the air conditioner within a time period, which can be obtained according to the above calculation formula 1-5.

[0074] Exemplarily, the wet load compensation amount can be determined according to the change in indoor wet-bulb temperature, the change in outdoor wet-bulb temperature, and the difference in sensible cooling capacity. For example, the wet load compensation amount can be calculated based on the following calculation formula 7.

[0075]

[0076] Wherein, To Indicates the model correction coefficient, which can be obtained by fitting experimental data in advance; Indicates from t to The change in indoor wet-bulb temperature within a time period; Indicates from t to The change in outdoor wet-bulb temperature within a time period; Indicates To The wet load values brought by indoor heat dissipation equipment, human body heat dissipation, lighting, cooking activities, etc. and / or air infiltration within a time period; Indicates from t to The difference in sensible cooling capacity of the air conditioner within a time period, which can be obtained according to the above calculation formula 1-5.

[0077] The present disclosure compensates the indoor space load of the enthalpy difference test chamber by separately calculating the heat load compensation amount and the wet load compensation amount, which can better compensate for the changes in the heat and moisture loads of the test chamber, improve the stability and consistency of the test results, and reduce the test errors caused by temperature and humidity changes.

[0078] In some embodiments, the load compensation amount includes a heat load compensation amount and a wet load compensation amount, and the method further includes: Determine the heat load compensation amount and the wet load compensation amount corresponding to the third moment, and the heat load compensation amount and the wet load compensation amount corresponding to the fourth moment; Determine the difference in heat load compensation amount according to the heat load compensation amount corresponding to the third moment and the heat load compensation amount corresponding to the fourth moment, and determine the difference in wet load compensation amount according to the wet load compensation amount corresponding to the third moment and the wet load compensation amount corresponding to the fourth moment; When the difference in heat load compensation amount is less than the second preset value and the difference in wet load compensation amount is less than the third preset value, determine the indoor dry-bulb temperature and the indoor wet-bulb temperature corresponding to the target moment, and the target moment is any one of the third moment and the fourth moment; Keep the indoor dry-bulb temperature and indoor wet-bulb temperature corresponding to the control target moment unchanged until the operating duration of the air conditioner to be tested reaches the second preset duration.

[0079] Exemplarily, the third moment and the fourth moment are two different time points during the test, used to compare the changes in the heat load compensation amount and the moisture load compensation amount. Among them, the third preset duration is the interval between the third moment and the fourth moment, and the third preset duration can be set according to the actual situation. For example, the third preset duration can be 10 minutes.

[0080] Exemplarily, the difference in heat load compensation amount is the difference between the heat load compensation amounts corresponding to the third moment and the fourth moment, used to judge the change in heat load. The difference in moisture load compensation amount is the difference between the moisture load compensation amounts corresponding to the third moment and the fourth moment, used to judge the change in moisture load.

[0081] Exemplarily, the second preset value and the third preset value are thresholds used to judge whether the difference in heat load compensation amount and the difference in moisture load compensation amount meet the stable conditions. Among them, the second preset value and the third preset value can be set according to the actual situation, and the size relationship between the second preset value and the third preset value is not limited. For example, the second preset value can be less than the third preset value, the second preset value can be equal to the third preset value, or the second preset value can be greater than the third preset value.

[0082] Exemplarily, the target moment is any moment between the third moment and the fourth moment. When the difference in heat load compensation amount is less than the second preset value and the difference in moisture load compensation amount is less than the third preset value, it is determined that both the difference in heat load compensation amount and the difference in moisture load compensation amount are small, that is, the heat load compensation amount and the moisture load compensation amount corresponding to the third moment are respectively close to the heat load compensation amount and the moisture load compensation amount corresponding to the fourth moment. Therefore, the heat load compensation amount and the moisture load compensation amount corresponding to any one of the third moment and the fourth moment can be continuously used for load compensation. At this time, there is no need to calculate the heat load compensation amount and the moisture load compensation amount, and the indoor dry-bulb temperature and indoor wet-bulb temperature corresponding to the third moment or the fourth moment can be used.

[0083] Exemplarily, the second preset duration is the operating duration of the air conditioner to be tested. Among them, the second preset duration can be determined according to the test requirements. For example, the second preset duration is 4 hours or 8 hours.

[0084] Exemplarily, at the third and fourth moments, the corresponding heat load compensation amount and moisture load compensation amount are calculated respectively. Among them, the heat load compensation amount and moisture load compensation amount can be determined by using the aforementioned calculation formulas 1-6. Then, the difference in heat load compensation amount can be calculated based on the heat load compensation amounts at the third and fourth moments; the difference in moisture load compensation amount can be calculated based on the moisture load compensation amounts at the third and fourth moments. When the difference in heat load compensation amount is less than the second preset value and the difference in moisture load compensation amount is less than the third preset value, the indoor dry-bulb temperature and indoor wet-bulb temperature corresponding to the target moment are determined and remain unchanged.

[0085] The present disclosure ensures the stability of the test environment by determining whether the difference in load compensation amount meets the stability condition, reducing the test error caused by environmental changes. When the difference in load compensation amount meets the stability condition, the indoor dry-bulb temperature and indoor wet-bulb temperature corresponding to the target moment can be kept unchanged thereafter until the end of the test, which can reduce the continuous calculation process of the load compensation amount and save computing resources.

[0086] In some embodiments, the enthalpy difference laboratory includes a load generator for controlling the indoor space load of the enthalpy difference laboratory; at least compensating for the indoor space load of the enthalpy difference laboratory according to environmental parameters and set operating parameters, including: Determining at least the load compensation amount according to environmental parameters and set operating parameters; Controlling the load generator to compensate for the indoor space load of the enthalpy difference laboratory according to the load compensation amount.

[0087] Exemplarily, the main function of the load generator of the air conditioner is to simulate the operating state of the air conditioner under different load conditions in order to accurately evaluate its performance and efficiency. The load generator can simulate various load conditions, including low load, medium load, and high load, to help test the performance of the air conditioner under different loads. Among them, the load generator can be used to simulate the changes in the heat load and moisture load of an actual room in the enthalpy difference laboratory, and control the indoor space load by increasing or decreasing heat and moisture. The load generator can be used to simulate the changes in indoor heat and moisture loads caused by heat exchange between indoor and outdoor and heat generated by heat sources based on the load compensation amount determined by environmental parameters and set operating parameters, making the test environment closer to the actual use scenario.

[0088] The present disclosure determines the load compensation amount through environmental parameters and set operating parameters, and automatically controls the load generator to compensate for the indoor space load of the enthalpy difference laboratory, making the target test environment closer to the actual use environment of the air conditioner, reducing the error between the test energy consumption and the actual operating energy consumption of the air conditioner, and effectively improving the accuracy and reliability of the test results.

[0089] In some embodiments, at least according to environmental parameters and set operating parameters, the indoor space load of the enthalpy difference laboratory is compensated, including: According to environmental parameters, set operating parameters, and a room load correction factor, the indoor space load of the enthalpy difference laboratory is compensated. The room load correction factor is determined according to the rated cooling capacity of the air conditioner to be tested.

[0090] Exemplarily, the room load correction factor is a correction factor determined according to the rated cooling capacity of the air conditioner to be tested, and is used to adjust the indoor space load compensation amount to more accurately simulate the actual operating environment. Among them, air conditioners with different rated cooling capacities have different impacts on the room load during actual use, and the load can be compensated more precisely through the correction factor.

[0091] Exemplarily, each rated cooling capacity can correspond to a room load correction factor, and there is a positive correlation between the rated cooling capacity and the value of the room load correction factor. Each rated cooling capacity range can correspond to a room load correction factor, and there is a positive correlation between the mean value of the rated cooling capacity range and the value of the room load correction factor.

[0092] Exemplarily, according to the rated cooling capacity of the air conditioner to be tested, the corresponding room load correction factor can be found from a preset correction factor table. Among them, when the rated cooling capacity range is 2300W - 2500W, the room load correction factor is β; when the rated cooling capacity range is 2500W - 3400W, the room load correction factor is 1.38×β; when the rated cooling capacity range is 3400W - 4900W, the room load correction factor is 1.92×β; when the rated cooling capacity range is 4900W - 8000W, the room load correction factor is 3.08×β; when the rated cooling capacity range is 8000W - 14000W, the room load correction factor is 4.62×β. Among them, the value range of β can be set according to the actual situation. In the present disclosure, the value range of β can be 21 - 39, and the preferred value is 30.

[0093] Exemplarily, the larger the room, the larger the horsepower of the installed air conditioner, and the corresponding rated cooling capacity of the air conditioner is larger. Therefore, based on air conditioners with different rated cooling capacities, different room load correction factors are set, and there is a positive correlation between the rated cooling capacity value and the room load correction factor, which can further represent the actual power consumption of the air conditioner in the actual use environment. Therefore, based on the room load correction factor, the influence of different laboratory sizes and layouts on the power consumption test can be further reduced, enhancing the accuracy of the test results.

[0094] In some embodiments, the power consumption of the air conditioner to be tested is tested in a target test environment, including: When the operating duration of the air conditioner to be tested reaches a second preset duration, the power consumption test result of the air conditioner to be tested is output.

[0095] Exemplarily, the second preset duration is the test duration of the air conditioner to be tested in the target test environment, for example, 8 hours. The power consumption test result can be used to characterize whether the air conditioner to be tested meets the test stability condition, or to characterize the total power consumption of the air conditioner to be tested in the target test environment when operating for the second preset duration. The power consumption test result can be used to evaluate the energy efficiency ratio and energy consumption performance of the air conditioner.

[0096] Exemplarily, by the control system, parameters such as the operation mode, temperature, and wind speed of the air conditioner are set, and the air conditioner to be tested is started in the target test environment to operate according to the set operation parameters. And the operation duration and power consumption of the air conditioner to be tested are monitored in real time. Among them, the real-time power and cumulative power consumption of the air conditioner can be determined through the power monitoring device in the enthalpy difference laboratory. When the operation duration of the air conditioner to be tested reaches the second preset duration, the power consumption test result is output.

[0097] In some embodiments, as Figure 2 shown, a flow of an air conditioner test method is provided.

[0098] In step S21, the tester starts the main control test program for the air conditioner power consumption, and inputs the set operation parameters and test condition parameters of the air conditioner to be tested at the front end of the program.

[0099] As an example, the set operation parameters include: operation mode, the operation wind speed of the air conditioner indoor unit, the position of the air deflector, and the set temperature.

[0100] Exemplarily, the air conditioner operation modes include a cooling mode, a heating mode, an energy-saving cooling mode, an energy-saving heating mode, and so on.

[0101] Exemplarily, the operation wind speed of the air conditioner indoor unit is determined according to the actual function of the air conditioner to be tested, and the operation wind speed of the air conditioner indoor unit in the present disclosure can be set to the highest wind speed in the corresponding operation wind speeds of the air conditioner to be tested.

[0102] Exemplarily, according to the different natures of the cooling mode and the heating mode, since cold air sinks and hot air rises, in order to make the cold or heat output by the air conditioner more evenly distributed in the indoor space, the position of the air deflector can be correspondingly set according to the set operation mode of the air conditioner to be tested. For example, the air supply angle of the air deflector position in the cooling mode or the energy-saving cooling mode can be the minimum value, as Figure 3 shown, preferably the air deflector fixed position 1. The air supply angle of the air deflector position in the heating mode or the energy-saving heating mode can be the maximum value, as Figure 3 shown, the preferred value is the air deflector fixed position 5.

[0103] For example, the set temperature can be set according to different modes. For example, in the cooling mode or the energy-saving cooling mode, the set temperature can be 24~27°C. In the heating mode or the energy-saving heating mode, the set temperature can be 20~23°C.

[0104] As an example, the test operating condition parameters include indoor operating condition parameters, outdoor operating condition parameters, and room load correction factor.

[0105] For example, the indoor operating condition parameters in the cooling mode or the energy-saving cooling mode can be 30°C / 26.2°C, where 30°C is the dry bulb temperature and 26.2°C is the wet bulb temperature. The indoor operating condition parameters in the heating mode or the energy-saving heating mode can be 10°C / -, where 10°C is the dry bulb temperature and the wet bulb temperature is not specifically required.

[0106] Among them, the indoor operating condition parameters are realized by the indoor load generator. Before the air conditioner to be tested is turned on, the indoor load generator maintains the indoor operating conditions at the set indoor operating condition parameters according to the pre-set temperature control program at the front end of the program. When the air conditioner is turned on, the pre-set temperature control program at the front end of the program is exited, and the load control center controls the indoor load generator to compensate for the indoor space load until the test is completed.

[0107] For example, the outdoor operating condition parameters in the cooling mode or the energy-saving cooling mode can be 32°C / 22°C, where 32°C is the dry bulb temperature and 22°C is the wet bulb temperature. The outdoor operating condition parameters in the heating mode or the energy-saving heating mode can be 7°C / 6°C, where 7°C is the dry bulb temperature and 6°C is the wet bulb temperature.

[0108] Among them, the outdoor operating condition parameters are realized by the outdoor load generator. During the entire test process, the outdoor load generator continuously maintains the outdoor operating conditions at the set outdoor operating condition parameters according to the pre-set temperature control program at the front end of the program until the test is completed.

[0109] For example, different room load correction factors can be set according to the rated cooling capacity of the air conditioner to be tested. When testing different air conditioners, the specific values of the room load correction factor are specifically referred to Table 1 below. Among them, the value range of β is 21~39, and preferably 30.

[0110] Table 1 Room load correction factor

[0111] In step S22, after both the indoor operating parameters and the outdoor operating parameters have reached and been maintained for at least 30 minutes, the main air-conditioning power consumption test program sends an instruction to the air conditioner under test, and the air conditioner under test starts running according to the set operating parameters. At the same time, the main air-conditioning power consumption test program performs the following operations: The main air-conditioning power consumption test program sends a control instruction to the indoor load generator to exit the temperature control program, and during the operation of the air conditioner, the indoor operating parameters are controlled by the load control center until the test program is exited; and, the main air-conditioning power consumption test program sends a control instruction to the outdoor load generator, and during the operation of the air conditioner, the outdoor load generator continuously maintains the outdoor-side conditions according to the set outdoor operating parameters.

[0112] In step S23, the sensor center is controlled to work, and the sensor center sends a set of instructions to all dry-bulb temperature sensors and all wet-bulb temperature sensors in the indoor space at intervals of to collect a set of indoor dry-bulb temperatures and a set of indoor wet-bulb temperatures. Then, all the collected indoor dry-bulb temperatures and indoor wet-bulb temperatures on the indoor side are sent to the load calculation center. Among them, can have a value range of 1 to 10 s.

[0113] In step S24, after the load calculation center receives the indoor dry-bulb temperatures collected by all dry-bulb temperature sensors in the indoor space and the indoor humidity temperatures collected by all wet-bulb temperature sensors at the current moment sent by the sensor center, it calculates the indoor average dry-bulb temperature and the indoor average wet-bulb temperature at the current moment, and at the same time retrieves the indoor average dry-bulb temperature and the indoor average wet-bulb temperature at time t- , and then calculates the change in indoor dry-bulb temperature and the change in indoor wet-bulb temperature during the time period from t to , and sends the calculation results to the load control center. At the same time, in the same way, it obtains the indoor dry-bulb temperatures collected by all dry-bulb temperature sensors in the outdoor space and the indoor humidity collected by all wet-bulb temperature sensors, and calculates the change in indoor dry-bulb temperature and the change in indoor wet-bulb temperature during the time period from t to .

[0114] In step S25, after the load control center receives the change in indoor dry-bulb temperature and the change in indoor wet-bulb temperature sent by the load calculation center during the time period from t to , it calculates the heat load compensation amount and the moisture load compensation amount of the test room per unit time.

[0115] Exemplarily, in the indoor space load, the calculation model of the heat load compensation amount can refer to the following calculation formula 8.

[0116]

[0117] Among them, ω 0 -ω 6 represents the model correction coefficient, which can be obtained by fitting experimental data in advance; represents the change in indoor dry-bulb temperature during the time period from t to ; represents the change in outdoor dry-bulb temperature during the time period from t to ; represents the solar radiation heat load value and / or the heat load value brought by air infiltration, etc. during the time period from t to ; represents to the heat load value brought by indoor heat dissipation equipment, human body heat dissipation, lighting, cooking activities, etc. during the time period; represents the set temperature of the air conditioner; β i represents the room load correction coefficient, which can be taken with reference to Table 1 above; represents the difference in sensible cooling capacity of the air conditioner during the time period from t to , which can be obtained according to the above calculation formula 1-5 and will not be elaborated here.

[0118] Exemplarily, in the indoor space load, the calculation model of the wet load compensation amount can refer to the following calculation formula 9.

[0119]

[0120] Among them, to represents the model correction coefficient, which can be obtained by fitting experimental data in advance; represents the change in indoor wet-bulb temperature during the time period from t to ; represents the change in outdoor wet-bulb temperature during the time period from t to ; represents to the wet load value brought by indoor heat dissipation equipment, human body heat dissipation, lighting, cooking activities, etc. and / or air infiltration during the time period; represents the difference in sensible cooling capacity of the air conditioner during the time period from t to , which can be obtained according to the above calculation formula 1-5 and will not be elaborated here.

[0121] In step S26, the load control center is based on The heat load compensation amount and the moisture load compensation amount within a certain time are sent to the indoor load generator, and the indoor load generator inputs the heat load compensation amount and the moisture load compensation amount into the indoor space to compensate for the changes in the indoor heat load and moisture load caused by the operation of the air conditioner within a certain time.

[0122] In step S27, during the operation of the air conditioner, the stability determination condition program continuously works to determine whether the load compensation is stable.

[0123] Among them, the heat load compensation amount meets the heat load compensation amount stability determination condition, and the moisture load compensation amount meets the moisture load compensation amount stability determination condition.

[0124] Exemplarily, within the time period from t to (t - ), the heat load compensation amount stability determination condition is , Q H represents the second preset value. is the third preset duration. For example, the third preset duration can be 10 minutes.

[0125] If the heat load compensation amount stability determination condition is met, a feedback adjustment instruction is sent to the sensor center, and through the load calculation center and the load control center, the indoor dry-bulb temperature is maintained until the air conditioner startup operation time is equal to 8h, and the power consumption during the 8h of the air conditioner startup operation and the indoor dry-bulb temperature at the current moment are output.

[0126] If the heat load compensation amount stability determination condition is not met, that is , the stability determination condition program sends a feedback adjustment instruction to the sensor center, and returns to steps S23 to S26, and continuously adjusts the heat load in the indoor space through the load calculation center and the load control center until the heat load compensation amount meets the stability determination condition.

[0127] If when the air conditioner startup operation time is greater than or equal to 8h, the heat load compensation amount stability determination condition is still not met, it is considered that the air conditioner to be tested cannot meet the test requirements, the air conditioner is required to stop, and a report on the air conditioner not meeting the test stability determination condition is output.

[0128] Among them, for the cooling mode or the energy-saving cooling mode, the value range of Q H can be 35 - 65W. For the heating mode or the energy-saving heating mode, the value range of Q H can be 55 - 85W; Exemplarily, within the time period from t to (t - ), the moisture load compensation amount stability determination condition is , Q W represents the third preset value. is the third preset duration, and the third preset duration can be 10 minutes.

[0129] If the steady-state determination condition for the wet load compensation amount is satisfied, a feedback regulation command is sent to the sensor center, and through the load calculation center and the load control center, the indoor wet-bulb temperature is maintained until the air conditioner running time reaches 8 hours, and the power consumption during the 8-hour operation of the air conditioner and the indoor wet-bulb temperature at the current moment are output.

[0130] If the steady-state determination condition for the wet load compensation amount is not satisfied, that is , the steady-state determination condition program sends a feedback regulation command to the sensor center, and returns to steps S23 to S26, and continuously adjusts the wet load in the indoor space load through the load calculation center and the load control center until the wet load compensation amount satisfies the steady-state determination condition.

[0131] If the steady-state determination condition for the wet load compensation amount is still not satisfied when the air conditioner running time is greater than or equal to 8 hours, it is considered that the air conditioner under test cannot meet the test requirements, the air conditioner is required to stop, and a report on the non-satisfaction of the test steady-state determination condition of the air conditioner is output.

[0132] Among them, for the cooling mode or the energy-saving cooling mode, the value range of Q W can be 25 - 55 W. For the heating mode or the energy-saving heating mode, the value range of Q W can be 15 - 45 W.

[0133] Based on the same inventive concept, the present disclosure also provides an enthalpy difference laboratory, including: A load generator for compensating the indoor load of the enthalpy difference laboratory; An installation device for installing the air conditioner under test; A control device for executing the air conditioner test method described in the present disclosure to test the power consumption of the air conditioner under test.

[0134] Exemplarily, as Figure 4 shown, a schematic diagram of an enthalpy difference laboratory is provided, where the enthalpy difference laboratory includes an outdoor space and an indoor space, an installation device for installing the air conditioner under test, and a control device for executing the air conditioner test method described in the present disclosure.

[0135] Among them, the outdoor space is used to simulate the operating environment of the outdoor unit 402 of the air conditioner under test; the indoor space is used to simulate the operating environment of the indoor unit 401 of the air conditioner under test.

[0136] Among them, the installation device includes an outdoor installation device 403 for installing the outdoor unit 402 of the air conditioner under test and an indoor installation device (not shown) for installing the indoor unit 401 of the air conditioner under test. An outdoor load generator 405 for adjusting and maintaining the working condition parameters of the outdoor space is arranged in the outdoor space, and an indoor load generator 404 for adjusting and maintaining the working condition parameters of the indoor space is arranged in the indoor space.

[0137] Among them, by executing the air conditioner test method described in the present disclosure, the control device can control the outdoor load generator 405 and the indoor load generator 404 to adjust the indoor and outdoor working conditions, control the to-be-tested air conditioner to start running, control the indoor load generator 404 to compensate for the indoor space load, determine the power consumption of the to-be-tested air conditioner, etc., so as to obtain the air conditioner test result.

[0138] Referring to Figure 5 , Figure 5 is a block diagram of an air conditioner test device 500 shown according to an exemplary embodiment. As Figure 5 shown, the air conditioner test device 500 includes an acquisition module 501, a compensation module 502, and a test module 503.

[0139] The acquisition module 501 is configured to acquire the environmental parameters of the enthalpy difference laboratory and the set operating parameters of the to-be-tested air conditioner under the enthalpy difference laboratory; The compensation module 502 is configured to compensate for the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters to obtain a target test environment for testing the to-be-tested air conditioner; The test module 503 is configured to test the power consumption of the to-be-tested air conditioner under the target test environment.

[0140] In some embodiments, the compensation module 502 is further configured to: Determine a preset load correction amount, where the preset load correction amount includes: a first load amount used to characterize the heat generated by the heat source on the indoor space of the enthalpy difference laboratory, and / or, a second load amount used to characterize the heat exchange between the indoor and outdoor spaces on the indoor space; Compensate for the indoor space load of the enthalpy difference laboratory according to the set operating parameters, environmental parameters, and preset load correction amount to obtain the target test environment of the enthalpy difference laboratory.

[0141] In some embodiments, the compensation module 502 is further configured to: Determine a load compensation amount according to the set operating parameters, environmental parameters, and preset load correction amount; Compensate for the indoor space load of the enthalpy difference laboratory according to the load compensation amount to obtain the target test environment of the enthalpy difference laboratory.

[0142] In some embodiments, the environmental parameters include the indoor temperature and outdoor temperature of the enthalpy difference laboratory; the compensation module 502 is further configured to: Determine the sensible heat cooling capacity difference of the to-be-tested air conditioner within a first preset duration according to the indoor temperature; Determine the indoor temperature change amount and outdoor temperature change amount within a first preset duration according to the indoor temperature and outdoor temperature; Determine the load compensation amount based on the indoor temperature change amount, outdoor temperature change amount, sensible heat cooling capacity difference, set operating parameters, and preset load correction amount.

[0143] In some embodiments, the indoor temperature includes the indoor dry-bulb temperature and the indoor wet-bulb temperature; the compensation module 502 is further configured to: Determine the moisture content of the air according to the indoor dry-bulb temperature and the indoor wet-bulb temperature; Determine the sensible heat cooling capacity difference of the air conditioner to be tested within the first preset duration according to the moisture content of the air at the first moment, the moisture content of the air at the second moment, the indoor dry-bulb temperature at the first moment, and the indoor dry-bulb temperature at the second moment, with a first preset duration between the first moment and the second moment.

[0144] In some embodiments, the compensation module 502 is further configured to: When the indoor wet-bulb temperature is greater than or equal to the first preset value, determine the moisture content of the air according to the indoor dry-bulb temperature, the indoor wet-bulb temperature, and the first moisture content model; When the indoor wet-bulb temperature is less than the first preset value, determine the moisture content of the air according to the indoor dry-bulb temperature, the indoor wet-bulb temperature, and the second moisture content model, where the model coefficients of the first moisture content model and the second moisture content model are different.

[0145] In some embodiments, the indoor temperature change amount includes the indoor dry-bulb temperature change amount and the indoor wet-bulb temperature change amount, and the outdoor temperature change amount includes the outdoor dry-bulb temperature change amount and the outdoor wet-bulb temperature change amount; the preset load correction amount includes a heat load correction amount and a moisture load correction amount, the heat load correction amount includes the heat load amount in the first load and / or the heat load amount in the second load, and the moisture load correction amount includes the moisture load amount in the first load and / or the moisture load amount in the second load; The compensation module 502 is further configured to: Determine the heat load compensation amount according to the indoor dry-bulb temperature change amount, the outdoor dry-bulb temperature change amount, the sensible heat cooling capacity difference, the heat load correction amount, and the set operating parameters; Determine the moisture load compensation amount according to the indoor wet-bulb temperature change amount, the outdoor wet-bulb temperature change amount, the moisture load correction amount, and the sensible heat cooling capacity difference.

[0146] In some embodiments, the load compensation amount includes a heat load compensation amount and a moisture load compensation amount, and the air conditioner test device 500 is further configured to: Determine the heat load compensation amount and the moisture load compensation amount corresponding to the third moment, and the heat load compensation amount and the moisture load compensation amount corresponding to the fourth moment; Determine the difference in heat load compensation based on the heat load compensation corresponding to the third moment and the heat load compensation corresponding to the fourth moment, and determine the difference in moisture load compensation based on the moisture load compensation corresponding to the third moment and the moisture load compensation corresponding to the fourth moment; When the difference in heat load compensation is less than the second preset value and the difference in moisture load compensation is less than the third preset value, determine the indoor dry-bulb temperature and the indoor wet-bulb temperature corresponding to the target moment, where the target moment is any one of the third moment and the fourth moment; Control the indoor dry-bulb temperature and the indoor wet-bulb temperature corresponding to the target moment to remain unchanged until the operating duration of the air conditioner under test reaches the second preset duration.

[0147] In some embodiments, the enthalpy difference laboratory includes a load generator for controlling the indoor space load of the enthalpy difference laboratory; the compensation module 502 is further configured to: Determine the load compensation amount at least based on the environmental parameters and the set operating parameters; Control the load generator to compensate the indoor space load of the enthalpy difference laboratory according to the load compensation amount.

[0148] In some embodiments, the compensation module 502 is further configured to: Compensate the indoor space load of the enthalpy difference laboratory according to the environmental parameters, the set operating parameters, and the room load correction factor, where the room load correction factor is determined according to the rated cooling capacity of the air conditioner under test.

[0149] In some embodiments, the testing module 503 is further configured to: Output the power consumption test result of the air conditioner under test when the operating duration of the air conditioner under test reaches the second preset duration.

[0150] Regarding the air conditioner testing device 500 in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the air conditioner testing method, and will not be elaborated here in detail.

[0151] Based on the same inventive concept, the present disclosure also provides a computer-readable storage medium, on which computer program instructions are stored, and when the program instructions are executed by a processor, the air conditioner testing method described in the present disclosure is performed.

[0152] In another exemplary embodiment, a computer program product is also provided, which includes a computer program capable of being executed by a programmable device, and the computer program has a code portion for performing the above air conditioner testing method when executed by the programmable device.

[0153] Figure 6is a block diagram of a control device 1900 for air conditioner testing shown according to an exemplary embodiment. For example, the control device 1900 can be provided as a server. Referring to Figure 6 , the control device 1900 includes a processing component 1922, which further includes one or more processors, and memory resources represented by a memory 1932 for storing instructions executable by the processing component 1922, such as application programs. The application programs stored in the memory 1932 can include one or more modules each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute instructions to perform the above-described air conditioner testing method.

[0154] The control device 1900 may also include a power component 1926 configured to perform power management of the control device 1900, a wired or wireless network interface 1950 configured to connect the control device 1900 to a network, and an input / output interface 1958. The control device 1900 can operate based on an operating system stored in the memory 1932, such as Windows Server TM , Mac OS X TM , Unix TM , Linux TM , FreeBSD TM or the like.

[0155] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the present disclosure. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and embodiments are only to be considered exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0156] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. An air conditioning testing method, characterized in that: include: Obtaining environmental parameters of an enthalpy difference laboratory and set operating parameters of the air conditioner to be tested in the enthalpy difference laboratory; Compensating the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters to obtain a target test environment for the air conditioner to be tested; The power consumption of the air conditioner to be tested is tested under the target test environment.

2. The method according to claim 1, characterized in that The method of compensating the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters to obtain a target test environment for the air conditioner to be tested includes: Determine a preset load correction amount, the preset load correction amount including: a first load amount for characterizing the heat generated by the heat source on the indoor space of the enthalpy difference laboratory, and / or a second load amount for characterizing the heat exchange between the indoor space and the outside of the indoor space on the indoor space; According to the set operating parameters, the environmental parameters and the preset load correction amount, the indoor space load of the enthalpy difference laboratory is compensated to obtain the target test environment of the enthalpy difference laboratory.

3. The method according to claim 2, characterized in that The environmental parameters include the indoor temperature and outdoor temperature of the enthalpy difference laboratory; according to the set operating parameters, the environmental parameters and the preset load correction amount, the indoor space load of the enthalpy difference laboratory is compensated to obtain the target test environment of the enthalpy difference laboratory, including: Determine the sensible heat and cooling capacity difference of the air conditioner to be tested within a first preset time period according to the indoor temperature; Determine, according to the indoor temperature and the outdoor temperature, a change amount of the indoor temperature and a change amount of the outdoor temperature within the first preset time period; Determining a load compensation amount according to the indoor temperature change, the outdoor temperature change, the sensible heat and cooling capacity difference, the set operating parameters and the preset load correction amount; The indoor space load of the enthalpy difference laboratory is compensated according to the load compensation amount to obtain a target test environment of the enthalpy difference laboratory.

4. The method according to claim 3, characterized in that The indoor temperature includes indoor dry-bulb temperature and indoor wet-bulb temperature; Determining the sensible heat and cooling capacity difference of the air conditioner to be tested within a first preset time period according to the indoor temperature includes: Determining air humidity according to the indoor dry-bulb temperature and the indoor wet-bulb temperature; According to the air humidity at the first moment, the air humidity at the second moment, the indoor dry-bulb temperature at the first moment and the indoor dry-bulb temperature at the second moment, the sensible heat and cooling capacity difference of the air conditioner to be tested within the first preset time period is determined, and the first moment and the second moment are separated by the first preset time period.

5. The method according to claim 4, characterized in that Determining air humidity according to the indoor dry-bulb temperature and the indoor wet-bulb temperature includes: When the indoor wet-bulb temperature is greater than or equal to a first preset value, determining the air humidity according to the indoor dry-bulb temperature, the indoor wet-bulb temperature and a first humidity model; When the indoor wet-bulb temperature is less than the first preset value, the air humidity is determined according to the indoor dry-bulb temperature, the indoor wet-bulb temperature and a second humidity model, wherein the first humidity model and the second humidity model have different model coefficients.

6. The method according to claim 3, characterized in that: The indoor temperature variation includes the indoor dry-bulb temperature variation and the indoor wet-bulb temperature variation, and the outdoor temperature variation includes the outdoor dry-bulb temperature variation and the outdoor wet-bulb temperature variation; the preset load correction includes a heat load correction and a wet load correction, the heat load correction includes the heat load in the first load and / or the heat load in the second load, and the wet load correction includes the wet load in the first load and / or the wet load in the second load; Determining the load compensation amount according to the indoor temperature change, the outdoor temperature change, the sensible heat and cooling capacity difference, the set operating parameters and the preset load correction amount includes: Determining a heat load compensation amount according to the indoor dry-bulb temperature change, the outdoor dry-bulb temperature change, the sensible heat and cooling capacity difference, the heat load correction amount and the set operating parameters; A wet load compensation amount is determined according to the indoor wet-bulb temperature change, the outdoor wet-bulb temperature change, the wet load correction amount, and the sensible heat and cooling amount difference.

7. The method according to any one of claims 3 to 6, characterized in that: The load compensation amount includes a heat load compensation amount and a wet load compensation amount, and the method further includes: Determine a heat load compensation amount and a wet load compensation amount corresponding to the third moment, and a heat load compensation amount and a wet load compensation amount corresponding to the fourth moment; Determine a heat load compensation difference according to the heat load compensation amount corresponding to the third moment and the heat load compensation amount corresponding to the fourth moment, and determine a wet load compensation difference according to the wet load compensation amount corresponding to the third moment and the wet load compensation amount corresponding to the fourth moment; When the heat load compensation difference is less than the second preset value, and the wet load compensation difference is less than the third preset value, determining the indoor dry-bulb temperature and the indoor wet-bulb temperature corresponding to the target time, the target time being any one of the third time and the fourth time; The indoor dry-bulb temperature and the indoor wet-bulb temperature corresponding to the target time are controlled to remain unchanged until the operating time of the air conditioner to be tested reaches a second preset time.

8. The method according to any one of claims 1 to 6, characterized in that: The enthalpy difference laboratory includes a load generator for controlling the indoor space load of the enthalpy difference laboratory; the indoor space load of the enthalpy difference laboratory is compensated at least according to the environmental parameters and the set operating parameters, including: Determining a load compensation amount based at least on the environmental parameter and the set operating parameter; According to the load compensation amount, the load generator is controlled to compensate the indoor space load of the enthalpy difference laboratory.

9. The method according to any one of claims 1 to 6, characterized in that: Compensating the indoor space load of the enthalpy difference laboratory at least according to the environmental parameter and the set operating parameter, including: The indoor space load of the enthalpy difference laboratory is compensated according to the environmental parameters, the set operating parameters and the room load correction coefficient, and the room load correction coefficient is determined according to the rated cooling capacity of the air conditioner to be tested.

10. The method according to any one of claims 1 to 6, characterized in that: Testing the power consumption of the air conditioner to be tested under the target test environment includes: When the operation time of the air conditioner to be tested reaches a second preset time, the power consumption test result of the air conditioner to be tested is output.

11. An air conditioning testing device, characterized in that: include: An acquisition module is configured to acquire environmental parameters of the enthalpy difference laboratory and set operating parameters of the air conditioner to be tested in the enthalpy difference laboratory; A compensation module is configured to compensate the indoor space load of the enthalpy difference laboratory at least according to the environmental parameters and the set operating parameters to obtain a target test environment for the air conditioner to be tested; The testing module is configured to test the power consumption of the air conditioner to be tested under the target testing environment.

12. A computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the program instructions are executed by a processor, the air conditioning testing method described in any one of claims 1 to 10 is implemented.

13. An enthalpy difference laboratory, characterized in that: include: A load generator, used to compensate for the indoor load of the enthalpy difference laboratory; An installation device for installing the air conditioner to be tested; A control device, used to execute the air conditioner testing method according to any one of claims 1 to 10, so as to test the power consumption of the air conditioner to be tested.

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