Air-conditioning system and control method therefor, electronic device, and storage medium
Through the control method of the air conditioning system, the operating status is adjusted according to the comfort parameters, which solves the problem of air conditioning equipment decreasing comfort during peak staggered response, and achieves both energy consumption and comfort.
Patent Information
- Application Number
- PCT/CN2024/097742
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-06-27
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-02
AI Technical Summary
During the peak-off response process, it is difficult for air conditioning equipment to balance the unit control between comfort and demand response, resulting in a decrease in comfort.
A control method for air conditioning system is proposed. After receiving the request for energy reduction, the operating state is adjusted according to the current comfort parameters to ensure that the energy consumption is reduced while maintaining comfort. By adjusting the output of indoor units and outdoor units, presets are performed. Comfort control or energy consumption reduction control operation.
It effectively alleviates the problem of comfort reduction caused by the air-conditioning system only reducing power according to the peak-off demand indicators, takes into account both comfort and energy consumption, and improves the unit's response ability.
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Figure CN2024097742_02012025_PF_FP_ABST
Abstract
Description
Air conditioning system and control method thereof, electronic device, and storage medium
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] The present disclosure claims priority to Chinese patent application 202310768353.5 filed on June 27, 2023, entitled “Method and system for determining adjustable power, electronic device, and storage medium,” Chinese patent application 202310768533.3 filed on June 27, 2023, entitled “Air conditioning system and control method thereof, electronic device, and storage medium,” and Chinese patent application 202310774093.2 filed on June 27, 2023, entitled “Air conditioner and control method thereof and computer storage medium,” and the entire contents of the above three applications are incorporated herein by reference. Technical Field
[0003] The present disclosure relates to the technical field of household appliances, and in particular to an air-conditioning system and a control method thereof, an electronic device, and a storage medium. Background Art
[0004] With the increasing adoption of carbon neutrality and the growing adoption of energy-efficient air conditioning (AC) operations, the demand for peak-shaving response in the power grid is growing. For AC equipment, balancing comfort and demand response in unit control is a major challenge. Some technologies typically control the set temperature and outdoor unit output of the AC system based on peak demand indicators, which inevitably leads to a decrease in comfort.
[0005] Summary of the Invention
[0006] The present disclosure aims to at least alleviate the problem of reduced comfort caused by controlling the set temperature and outdoor unit output of an air conditioning system according to staggered demand indicators. This objective is achieved through the following technical solutions:
[0007] A first aspect of the present disclosure provides a control method for an air conditioning system, comprising:
[0008] receiving a request to reduce energy consumption;
[0009] acquiring, according to the energy consumption reduction request, a comfort parameter of the air-conditioning system in a current operating state;
[0010] The operation of the air conditioning system is controlled according to the comfort parameter.
[0011] According to the control method of the air-conditioning system disclosed in the present invention, after receiving a request to reduce energy consumption, the air-conditioning system will execute the operating program in combination with the comfort parameters. That is to say, the comfort parameters are a reference condition when the air-conditioning system receives a request to reduce energy consumption. This allows the air-conditioning system to take comfort into consideration when receiving a request to reduce energy consumption, thereby alleviating the problem of reduced comfort caused by the air-conditioning system power being reduced only according to the peak demand index.
[0012] In addition, the control method of the air conditioning system according to the present disclosure may also have the following additional technical features:
[0013] In some embodiments of the present disclosure, controlling the operation of the air conditioning system according to the comfort parameter includes:
[0014] causing the air conditioning system to perform a preset comfort control operation according to the comfort parameter exceeding a target parameter range;
[0015] According to the comfort parameter being within the target parameter range, the air conditioning system is enabled to perform an energy consumption reduction control operation.
[0016] In some embodiments of the present disclosure, the control method of the air-conditioning system further includes:
[0017] acquiring the current operating power of the air conditioning system according to the energy consumption reduction request;
[0018] According to the current operating power being less than or equal to the target power corresponding to the energy consumption reduction request, maintaining the preset comfort control operation;
[0019] According to the current operating power being greater than the target power corresponding to the energy consumption reduction request, a step of obtaining a comfort parameter of the air-conditioning system in the current operating state is performed.
[0020] In some embodiments of the present disclosure, causing the air conditioning system to perform a preset comfort control operation based on the comfort parameter exceeding a target parameter range includes: causing the air conditioning system to perform the preset comfort control operation based on the comfort parameter being worse than a first limit value;
[0021] The step of causing the air conditioning system to perform an energy-saving control operation based on the comfort parameter being within a target parameter range includes: causing the air conditioning system to perform the energy-saving control operation based on the comfort parameter being greater than a second limit value;
[0022] The first limit value is inferior to the second limit value.
[0023] In some embodiments of the present disclosure, the air-conditioning system control method includes: according to the air-conditioning system being in the state of executing the energy consumption reduction control operation and the comfort parameter being worse than a third limit value, causing the air-conditioning system to enter a first state, wherein the air-conditioning system maintains a current operating state in the first state;
[0024] According to the air conditioning system being in the first state and the comfort parameter being worse than a fourth limit value, executing the step of causing the air conditioning system to perform the preset comfort control operation;
[0025] The fourth limit value is inferior to the third limit value, the fourth limit value is inferior to the first limit value or is the same as the first limit value, and the third limit value is inferior to the second limit value or is the same as the second limit value.
[0026] In some embodiments of the present disclosure, the control method of the air conditioning system includes:
[0027] According to the state in which the air-conditioning system is performing the preset comfort control operation and the comfort parameter is greater than a fifth limit value, the air-conditioning system enters a second state, in which the air-conditioning system maintains a current operating state;
[0028] According to the air conditioning system being in the second state and the comfort parameter being greater than a sixth limit value, causing the air conditioning system to perform a preset comfort control operation;
[0029] The fifth limit value is better than the first limit value or is the same as the first limit value, the sixth limit value is better than the fifth limit value, and the sixth limit value is better than the second limit value or is the same as the second limit value.
[0030] In some embodiments of the present disclosure, the comfort parameter is a temperature parameter, the difference between the fourth limit value and the third limit value is a first difference, and the value of the first difference is between 1° C. and 3° C.;
[0031] And / or, the comfort parameter is a temperature parameter, the difference between the fourth limit value and the fifth limit value is a second difference, and the second difference is between 0° C. and 2° C.;
[0032] And / or, the comfort parameter is a temperature parameter, the difference between the fourth limit value and the sixth limit value is a third difference, and the third difference is between 1° C. and 4° C.
[0033] In some embodiments of the present disclosure, causing the air conditioning system to perform an energy consumption reduction control operation includes:
[0034] determining a required rated power ratio of the air conditioning system according to the energy consumption reduction request;
[0035] Based on the required rated power ratio of the air-conditioning system, the air-conditioning system is controlled to perform an energy consumption reduction control operation.
[0036] In some embodiments of the present disclosure, controlling the air conditioning system to perform an energy consumption reduction control operation based on the required rated power ratio of the air conditioning system includes:
[0037] According to the first target calibration value of the required rated power exceeding the current operating power of the air-conditioning system in the operating state, the air-conditioning system is caused to perform an energy consumption reduction control operation;
[0038] enabling the air conditioning system to perform a preset comfort control operation according to a current operating power of the air conditioning system being lower than a second target calibration value;
[0039] The second target calibration value is less than the first target calibration value.
[0040] In some embodiments of the present disclosure, controlling the air conditioning system to perform an energy consumption reduction control operation based on the required rated power ratio of the air conditioning system includes:
[0041] According to the state in which the air-conditioning system is performing the preset comfort control operation and the current operating power exceeds a third target calibration value of the required rated power, causing the air-conditioning system to enter a third state, in which the air-conditioning system maintains the current operating state;
[0042] According to the air-conditioning system being in the third state and the current operating power exceeding the fourth target calibration value of the required rated power, causing the air-conditioning system to perform an energy consumption reduction control operation;
[0043] The third target calibration value is the same as or greater than the second target calibration value, and the fourth target calibration value is the same as or greater than the first target calibration value.
[0044] In some embodiments of the present disclosure, controlling the air conditioning system to perform an energy consumption reduction control operation based on the required rated power ratio of the air conditioning system includes:
[0045] According to the state in which the air-conditioning system is in the state of executing the energy consumption reduction control operation and the current operating power is lower than a fifth target calibration value of the required rated power, causing the air-conditioning system to enter a fourth state, in which the air-conditioning system maintains the current operating state;
[0046] According to the air-conditioning system being in the fourth state and the current operating power being lower than a sixth target calibration value of the required rated power, causing the air-conditioning system to perform the preset comfort control operation;
[0047] The fifth target calibration value is the same as the first target calibration value or less than the second target calibration value, and the sixth target calibration value is the same as the second target calibration value or less than the first target calibration value.
[0048] In some embodiments of the present disclosure, the difference between the third target calibration value and the required rated power of the air-conditioning system is a fifth difference, and the fifth difference is 2% to 10% times the required rated power of the air-conditioning system;
[0049] And / or, a difference between the fourth target calibration value and the required rated power of the air-conditioning system is a sixth difference, and the sixth difference is 0% to 5% times the required rated power of the air-conditioning system;
[0050] And / or, a difference between the fifth target calibration value and the required rated power of the air-conditioning system is a seventh difference, and the seventh difference is 1% to 7% times the required rated power of the air-conditioning system;
[0051] And / or, the difference between the sixth target calibration value and the required rated power of the air-conditioning system is an eighth difference, and the eighth difference is 3% to 15% times the required rated power of the air-conditioning system.
[0052] In some embodiments of the present disclosure, causing the air conditioning system to perform an energy consumption reduction control operation includes:
[0053] The current operating frequency of the air-conditioning system is reduced, where the operating frequency of the air-conditioning system includes reducing the operating frequency of the outdoor fan, the operating frequency of the indoor fan of the air-conditioning system, and / or the operating frequency of the compressor of the air-conditioning system.
[0054] In some embodiments of the present disclosure, reducing the current operating frequency of the air-conditioning system includes reducing the power of the air-conditioning system by reducing the preset frequency at preset intervals.
[0055] In some embodiments of the present disclosure, causing the air conditioning system to perform an energy consumption reduction control operation includes:
[0056] According to the current operating state of the air-conditioning system being a heating operating state, the power of the electric auxiliary heating device of the air-conditioning system is reduced.
[0057] In some embodiments of the present disclosure, reducing the power of the electric auxiliary heating device of the air-conditioning system includes:
[0058] According to the current indoor temperature exceeding the first preset temperature, controlling the electric auxiliary heating device to be turned off;
[0059] According to the current indoor temperature being lower than the second preset temperature, the electric auxiliary heating device is controlled to be turned on, and the first preset temperature is higher than the second preset temperature.
[0060] In some embodiments of the present disclosure, the first preset temperature ranges from 10°C to 20°C;
[0061] And / or, the temperature difference between the first preset temperature and the second preset temperature is 1° C. to 3° C.
[0062] In some embodiments of the present disclosure, the comfort parameter includes a first temperature parameter of an indoor unit of the air conditioning system;
[0063] The step of controlling the operation of the air conditioning system according to the comfort parameter includes:
[0064] Determining whether the first temperature parameter reaches a limited temperature value;
[0065] According to the first temperature parameter not reaching the limit temperature value, controlling the indoor fan to lower the wind speed;
[0066] Ending the control process according to the first temperature parameter reaching the limited temperature value;
[0067] The first temperature parameter includes any one of the following: the air outlet temperature of the air conditioning system, the temperature of the indoor heat exchanger, and the ambient temperature around the indoor heat exchanger.
[0068] In some embodiments of the present disclosure, the control method of the air-conditioning system further includes:
[0069] Before obtaining the comfort parameter of the air-conditioning system in the current operating state, the method further includes controlling the compressor of the air-conditioning system to reduce the operating frequency according to the energy consumption reduction request.
[0070] In some embodiments of the present disclosure, before controlling the compressor of the air-conditioning system to reduce the operating frequency, the method further includes:
[0071] acquiring the current operating power of the air conditioning system according to the energy consumption reduction request;
[0072] Determining whether the current operating power is less than or equal to the target power corresponding to the energy consumption reduction request;
[0073] According to the current operating power being less than or equal to the target power corresponding to the energy consumption reduction request, the step of performing a comfort parameter adjustment of the air-conditioning system in the current operating state;
[0074] According to the fact that the current operating power is greater than the target power corresponding to the energy consumption reduction request, the step of controlling the compressor to reduce the operating frequency is first executed, and then according to the fact that the compressor reduces the operating frequency, the step of controlling the comfort parameters of the air-conditioning system in the current operating state is executed.
[0075] In some embodiments of the present disclosure, before obtaining the current operating power of the air-conditioning system, the control method further includes:
[0076] Obtaining an operating mode of the air conditioning system;
[0077] According to the air-conditioning system being in heating mode and turning off the electric auxiliary heating device, the step of determining whether the current operating power is less than or equal to the target power corresponding to the energy consumption reduction request is performed.
[0078] In some embodiments of the present disclosure, controlling the indoor fan to lower the wind speed includes:
[0079] Determining whether the wind speed of the indoor fan is at the lowest speed;
[0080] controlling the indoor fan to reduce one gear according to the wind speed of the indoor fan not being at the lowest gear, and executing the step of determining whether the first temperature parameter reaches a limited temperature value;
[0081] The control process is ended according to the wind speed of the indoor fan being at the lowest speed.
[0082] In some embodiments of the present disclosure, the step of controlling the compressor of the air-conditioning system to reduce the operating frequency includes:
[0083] Get the operating frequency of the compressor;
[0084] Determining whether the operating frequency is greater than a frequency lower limit;
[0085] According to the operating frequency being greater than the frequency lower limit, controlling the compressor to reduce a first frequency value based on the operating frequency;
[0086] According to the operating frequency being less than or equal to the frequency lower limit, the operating frequency is stopped from being lowered, and the step of obtaining the comfort parameter of the air-conditioning system in the current operating state is performed.
[0087] In some embodiments of the present disclosure, the control method further includes:
[0088] controlling the outdoor fan of the air-conditioning system to lower the wind speed according to the first temperature parameter not reaching the limit temperature value;
[0089] Wherein, the gear position of the outdoor fan is positively correlated with the operating frequency.
[0090] In some embodiments of the present disclosure, the first temperature parameter not reaching the limited temperature value includes: in cooling mode, the first temperature parameter is greater than a first limited temperature value; in heating mode, the first temperature parameter is less than a second limited temperature value;
[0091] The first temperature parameter reaching the limited temperature value includes: in cooling mode, the first temperature parameter is less than or equal to the first limited temperature value; in heating mode, the first temperature parameter is greater than or equal to the second limited temperature value.
[0092] In some embodiments of the present disclosure, the control method of the air-conditioning system further includes:
[0093] The opening area of the air outlet is reduced according to the first temperature parameter not reaching the limited temperature value.
[0094] In some embodiments of the present disclosure, the control method of the air-conditioning system further includes a step of determining an adjustable amount of power, and the step of determining the adjustable amount of power includes:
[0095] Pre-store load information of the air-conditioning system, wherein the load information is used to represent power parameters of the air-conditioning system;
[0096] In response to a request from a cloud platform to retrieve load information, the load information is sent to the cloud platform, so that the cloud platform determines the adjustable power of the air-conditioning system according to the load information.
[0097] In some embodiments of the present disclosure, the load information includes load information of an outdoor unit of the air-conditioning system.
[0098] In some embodiments of the present disclosure, the load information of the outdoor unit includes a first mapping relationship between the power parameters of the outdoor unit, the environmental parameters of the outdoor unit and the operating mode of the air-conditioning system. The power parameters of the outdoor unit include the rated power of the outdoor unit and / or the minimum power of the outdoor unit.
[0099] In some embodiments of the present disclosure, the operating mode includes a cooling mode and a heating mode, and the environmental parameters include an indoor temperature and an outdoor temperature;
[0100] And / or, the operating mode includes a dehumidification mode, and the environmental parameters include indoor humidity and outdoor humidity;
[0101] And / or, the operating mode includes a purification mode, and the environmental parameters include outdoor air cleanliness and outdoor air cleanliness.
[0102] In some embodiments of the present disclosure, the load information includes load information of an indoor unit of the air-conditioning system.
[0103] In some embodiments of the present disclosure, the load information of the indoor unit includes a second mapping relationship between the power parameters of the indoor unit, the wind speed of the indoor unit and the static pressure of the indoor unit, and the power parameters of the indoor unit include the rated power and / or minimum power of the indoor unit.
[0104] The second aspect of the present disclosure proposes an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to control the air-conditioning system according to the present disclosure or any embodiment of the present disclosure.
[0105] A third aspect of the present disclosure provides a computer-readable storage medium having a computer program stored thereon, wherein the program is executed by a processor to implement the control method of the air-conditioning system described in the present disclosure or any embodiment of the present disclosure.
[0106] A fourth aspect of the present disclosure provides an air-conditioning system, comprising a controller, wherein the controller is configured to execute the control method of the air-conditioning system as described in the present disclosure or any embodiment of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0107] FIG1 is a flow chart of a method for controlling an air conditioning system according to some embodiments of the present disclosure;
[0108] FIG2 is a flow chart of a method for controlling an air conditioning system according to some embodiments of the present disclosure;
[0109] FIG3 is a flow chart of a method for controlling an air conditioning system according to some embodiments of the present disclosure;
[0110] FIG4 is a flowchart of some embodiments of the present disclosure for causing an air conditioning system to perform a preset comfort control operation based on a comfort parameter exceeding a target parameter range;
[0111] FIG5 is a flow chart of a method for controlling an air conditioning system according to some embodiments of the present disclosure;
[0112] FIG6 is a flow chart showing an air conditioning system executing an energy consumption reduction control operation according to some embodiments of the present disclosure;
[0113] FIG7 is a flowchart of controlling an air-conditioning system to perform energy consumption reduction control operations based on a demand rated power ratio of the air-conditioning system according to some embodiments of the present disclosure;
[0114] FIG8 is a flowchart of controlling an air-conditioning system to perform energy consumption reduction control operations based on a demand rated power ratio of the air-conditioning system according to some embodiments of the present disclosure;
[0115] FIG9 is a control schematic diagram of a cooling mode in some embodiments of the present disclosure;
[0116] FIG10 is a control schematic diagram of a heating mode in some embodiments of the present disclosure;
[0117] FIG11 is a schematic diagram of controlling energy consumption reduction of a compressor according to some embodiments of the present disclosure;
[0118] FIG12 is a schematic diagram of controlling energy consumption reduction of an electric auxiliary heating device according to some embodiments of the present disclosure;
[0119] FIG13 is a flow chart of a method for controlling an air-conditioning system according to some embodiments of the present disclosure;
[0120] FIG14 is a flow chart of a method for controlling an air-conditioning system according to some embodiments of the present disclosure;
[0121] FIG15 is a flow chart of a method for controlling an air-conditioning system according to some embodiments of the present disclosure;
[0122] FIG16 is a flow chart of a method for controlling an air-conditioning system according to some embodiments of the present disclosure;
[0123] FIG17 is a flow chart of a method for controlling an air-conditioning system according to some embodiments of the present disclosure;
[0124] FIG18 is a flow chart of a method for controlling an air-conditioning system according to some embodiments of the present disclosure;
[0125] FIG19 is a flow chart of a method for controlling an air-conditioning system according to some embodiments of the present disclosure;
[0126] FIG20 is a flow chart of a method for controlling an air-conditioning system according to some embodiments of the present disclosure;
[0127] FIG21 is a flow chart of steps for determining adjustable power in some embodiments of the present disclosure;
[0128] FIG22 is a flowchart of steps for determining adjustable power according to other embodiments of the present disclosure;
[0129] FIG23 is a flow chart of a method for determining adjustable power according to some embodiments of the present disclosure;
[0130] FIG24 is a table showing the relationship between the rated power of the outdoor unit and the indoor and outdoor temperatures in cooling mode in some embodiments of the present disclosure;
[0131] FIG25 is a table showing the relationship between the rated power of the outdoor unit and the indoor and outdoor temperatures in the heating mode in some embodiments of the present disclosure;
[0132] FIG26 is a table showing the relationship between the minimum power of the outdoor unit and the indoor and outdoor temperatures in the heating mode in some embodiments of the present disclosure;
[0133] FIG27 is a table showing the relationship between the minimum power of an outdoor unit and the indoor and outdoor temperatures in cooling mode in some embodiments of the present disclosure;
[0134] FIG28 is a table showing the relationship between the rated power, wind speed, and static pressure of the indoor unit in some embodiments of the present disclosure;
[0135] FIG29 is a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure;
[0136] FIG30 is a schematic diagram of a storage medium provided in an embodiment of the present disclosure;
[0137] FIG31 is a block diagram showing the structure of an air conditioning system according to some embodiments of the present disclosure. DETAILED DESCRIPTION
[0138] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0139] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an", and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of stated features, steps, patterns, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, patterns, elements, parts, and / or combinations thereof. The method steps, processes, and patterns described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.
[0140] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.
[0141] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or mode in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.
[0142] An air conditioning system is also called an air conditioner, which can be a household air conditioner or a central air conditioner. The air conditioning unit of the air conditioning system includes an indoor unit and an outdoor unit. The indoor unit includes an indoor heat exchanger, and the indoor unit is usually installed indoors. The outdoor unit includes an outdoor heat exchanger, and the outdoor unit is usually installed outdoors. The indoor unit and the outdoor unit work together to realize the cooling, heating, dehumidification and air purification functions of the air conditioning system to achieve comfortable air quality.
[0143] In a central air conditioning system, there is typically one outdoor unit and multiple indoor units. Each indoor unit is equipped with one or more air outlets to discharge cooled, heated, dehumidified, or purified air into the room. The indoor unit typically houses an indoor heat exchanger, while the outdoor unit typically houses an outdoor heat exchanger. These two units are typically connected by refrigerant piping, allowing refrigerant to circulate between them.
[0144] During the cooling process of the air-conditioning system, the indoor heat exchanger is the evaporator, and the refrigerant in the evaporator absorbs heat from liquid to gas. In the process of refrigerant evaporation and heat absorption, the evaporator exchanges heat with the air flowing through the evaporator, taking away the heat in the air in the indoor unit, so that the air discharged from the indoor unit is the air that has released heat and cooled down, and the indoor unit blows cold air. At the same time, the outdoor heat exchanger is the condenser, and the refrigerant in the condenser changes from gas to liquid. In the process of refrigerant condensation and heat release, the condenser exchanges heat with the air in the outdoor unit flowing through the condenser, so that the air in the outdoor unit brings the heat of the condenser to the outside of the outdoor unit, realizing the cooling process.
[0145] During the heating process of the air-conditioning system, the outdoor heat exchanger is the evaporator, and the refrigerant in the evaporator absorbs heat from liquid to gas. In the process of refrigerant evaporation and heat absorption, the evaporator exchanges heat with the air flowing through the evaporator, and replaces the heat carried by the air in the outdoor unit with the refrigerant in the evaporator. At the same time, the indoor heat exchanger is the condenser, and the refrigerant in the condenser changes from gas to liquid. In the process of refrigerant condensation and heat release, the condenser exchanges heat with the air in the indoor unit flowing through the condenser, so that the air in the indoor unit takes away the heat carried by the condenser and discharges it from the indoor unit to the room outside the indoor unit, so that the indoor unit blows hot air, thus realizing the heating process.
[0146] Air conditioning systems also include compressors and throttling components (such as expansion valves). To reduce indoor noise, these components are typically located outdoors. These components, along with the outdoor heat exchanger, are collectively referred to as the outdoor unit. If the air conditioning system can provide both cooling and heating, it also includes components such as a four-way valve to switch between cooling and heating modes.
[0147] It should be noted that the air-conditioning system can be a structure with separate outdoor and indoor units, or an integrated structure with indoor and outdoor units. In the case of an integrated structure with indoor and outdoor units, the entire air-conditioning system can be set outdoors.
[0148] The air conditioning system may also include a gateway for communicating with the outside world, which may receive external commands, requests, and other control target parameters.
[0149] With the increasing adoption of carbon neutrality and the growing adoption of energy-efficient air conditioning (AC) operations, the demand for peak-shaving response in the power grid is growing. For AC equipment, a key challenge in peak-shaving response lies in balancing comfort and demand response with unit control. Some technologies typically control the set temperature and outdoor unit output of the AC system based on peak-shaving demand indicators, which inevitably leads to a decrease in comfort. Therefore, finding a solution for unit control that responds to peak-shaving demand while ensuring comfort is a pressing issue.
[0150] The present disclosure provides a method for controlling an air conditioning system to alleviate the problem of reduced comfort caused by the air conditioning system power being reduced only according to the peak demand index. As shown in FIG1 , the control method of the air conditioning system of this embodiment includes:
[0151] Step 110: Receive a request to reduce energy consumption.
[0152] The air conditioning system can receive a request to reduce energy consumption during normal operation. This request can be understood as a request to reduce power consumption. It can be a request issued by a cloud platform (e.g., a power grid) based on energy consumption scheduling. The request to reduce energy consumption includes, but is not limited to, a target value for the current overall power reduction, limiting control information for electric auxiliary heating devices, comfort control indicators, or the current energy consumption response level and the aforementioned information within the level. However, it should at least include the target value for overall power reduction or related information that can be used to derive that value.
[0153] Step 120: Acquire the comfort parameters of the air-conditioning system in the current operating state according to the energy consumption reduction request.
[0154] Comfort parameters are the user's desired parameters for the air conditioner's current operating mode. Specifically, when the air conditioner is in cooling or heating mode, the comfort parameter can be the indoor temperature parameter; when the air conditioner is in dehumidification mode, the comfort parameter can be the indoor humidity parameter; when the air conditioner is in purification mode, the comfort parameter can be the indoor air quality parameter. The comfort parameters of the air conditioner in its current operating state can be obtained through the system's relevant sensors. For example, when the air conditioner is in cooling or heating mode, the indoor temperature parameter can be obtained through the indoor unit's temperature sensor.
[0155] Step 130: Control the operation of the air-conditioning system according to the comfort parameter.
[0156] According to the control method of the air conditioning system of the embodiment, after receiving a request to reduce energy consumption, the air conditioning system will execute the operating program in combination with the comfort parameter. In other words, the comfort parameter is a reference condition for the air conditioning system when receiving the request to reduce energy consumption. This allows the air conditioning system to take comfort into consideration when receiving the request to reduce energy consumption, alleviating the problem of the air conditioning system reducing the air conditioning system power only according to the peak demand index, resulting in a decrease in comfort. Optionally, in some embodiments, when receiving the request to reduce energy consumption, the current operating power of the air conditioning system can also be determined first. That is, as shown in Figure 3, the control method of the air conditioning system further includes:
[0157] Step 101: In response to a request to reduce energy consumption, obtain the current operating power of the air-conditioning system.
[0158] The energy consumption reduction request may represent the target power required for the air conditioning system to operate. Specifically, the energy consumption reduction request may directly represent the target power, or the target power required by the air conditioning system to operate as requested by the energy consumption reduction request may be derived from relevant parameters. The target power required by the energy consumption reduction request for the air conditioning system to operate is also the target power corresponding to the energy consumption reduction request. If the air conditioning system operates according to this target power, the energy consumption reduction request can be satisfied, thereby achieving the desired energy consumption reduction effect.
[0159] Step 102: Determine whether the current operating power of the air-conditioning system is less than or equal to the target power corresponding to the energy consumption reduction request. If yes, execute step 103; if not, execute step 104.
[0160] Step 103: According to the current operating power being less than or equal to the target power corresponding to the energy consumption reduction request, the preset comfort control operation is maintained.
[0161] Preset comfort control operations are control operations for the normal operation of the air conditioning system. They can be understood as operations in which the air conditioning system operates without receiving or responding to requests to reduce energy consumption. Preset comfort control operations may be preset within the air conditioning system's controller. Under these preset comfort control operations, the air conditioning system automatically adjusts comfort parameters to within the range set or requested by the user.
[0162] When the current operating power is less than or equal to the target power corresponding to the energy consumption reduction request, it means that the current operating state of the air-conditioning system can meet the demand for energy consumption reduction, so the air-conditioning system can maintain the preset comfort control operation without adjustment.
[0163] Step 104: Based on the current operating power being greater than the target power corresponding to the energy consumption reduction request, a step of obtaining comfort parameters of the air-conditioning system in the current operating state is performed.
[0164] When the current operating power is greater than the target power corresponding to the energy consumption reduction request, it means that the current operating state of the air-conditioning system cannot meet the demand for energy consumption reduction. At this time, it is necessary to determine whether to adjust the current operating power based on the comfort parameters under the current operating state.
[0165] 2 and 3 , step 130 controls the operation of the air conditioning system according to the comfort parameter, which may include steps 1301 and 1302. Step 1301 : Based on the comfort parameter exceeding the target parameter range, the air conditioning system performs a preset comfort control operation.
[0166] The target parameter range may be a target parameter range for a comfort parameter. The target parameter range may be a specified value included in the energy reduction request, i.e., the energy reduction request issued by the cloud platform includes the target parameter range. The target parameter range may also be a set of control values preset in the air conditioning system controller, i.e., the target parameter range is preset in the air conditioning system controller.
[0167] Step 1302: Based on the comfort parameter being within the target parameter range, the air-conditioning system is enabled to perform an energy-saving control operation.
[0168] Energy-saving control operations are operations that can reduce the operating power of an air conditioner. Specifically, causing the air conditioning system to perform energy-saving control operations includes reducing the current operating frequency of the air conditioning system, which includes reducing the operating frequency of the outdoor unit fan (i.e., the outdoor fan), the indoor unit fan (i.e., the indoor fan), and / or the compressor. If the air conditioning system includes an electric auxiliary heating device and the current operating mode of the air conditioning system is heating, causing the air conditioning system to perform energy-saving control operations may also include reducing the power of the electric auxiliary heating device based on the current operating state of the air conditioning system being heating.
[0169] Specifically, reducing the current operating frequency of the air conditioning system may involve reducing the power of the air conditioning system by reducing the frequency by a preset frequency at predetermined intervals. Reducing the current operating frequency of the air conditioning system may include reducing the current operating frequency of the air conditioning system to zero, i.e., shutting down the air conditioner. Similarly, reducing the power of the electric radiation device may include shutting down the electric radiation device. When reducing the current operating frequency of the air conditioning system, the frequency of one component may be adjusted first, while the frequencies of the other components remain unchanged, to facilitate control over the reduction of the current operating frequency of the air conditioning system. For example, only the operating frequency of the compressor may be adjusted, while the operating frequencies of the outdoor and indoor fans remain unchanged.
[0170] According to the control method of the air-conditioning system of this embodiment, in response to a request to reduce energy consumption, the air-conditioning system can perform a preset comfort control operation based on the comfort parameter of the air-conditioning system in the current operating state exceeding the target parameter range, and can perform an energy reduction control operation based on the comfort parameter being within the target parameter range. In this way, the air-conditioning system can reduce energy consumption on the basis of meeting comfort requirements, so that the air-conditioning system can take into account both comfort and off-peak electricity consumption needs, alleviating the problem of reduced comfort caused by the air-conditioning system power being reduced only according to the off-peak demand index.
[0171] In one embodiment, step 1301, based on the comfort parameter exceeding the target parameter range, causes the air conditioning system to perform a preset comfort control operation, as shown in FIG4 , specifically including:
[0172] Step 111 : According to the comfort parameter being worse than the first limit value, the air-conditioning system is enabled to perform a preset comfort control operation.
[0173] Step 112: Based on the comfort parameter being within the target parameter range, the air conditioning system is caused to perform an energy-saving control operation, including: based on the comfort parameter being greater than a second limit value, the air conditioning system is caused to perform an energy-saving control operation.
[0174] The first limit value is inferior to the second limit value. The first limit value and the second limit value are both preset comfort parameters, which can be information in the energy consumption reduction request or parameters pre-stored in the controller of the air conditioning system.
[0175] The quality of the comfort parameter is determined based on the user's expectations for the current operating mode. A better comfort parameter than the user's expectations indicates a better comfort parameter, while a lower comfort parameter indicates a worse comfort parameter. For example, in cooling mode, lower temperatures are better, while higher temperatures are worse; in heating mode, higher temperatures are better, while lower temperatures are worse. Specifically, a comfort parameter being worse than a first limit value includes: in cooling mode, the comfort parameter being greater than the first limit value; in heating mode, the comfort parameter being less than the first limit value. The first limit value can be different in cooling and heating modes, i.e., the first limit value is set accordingly based on the operating mode. Similarly, a first limit value being worse than a second limit value includes: in cooling mode, the first limit value is greater than the second limit value; in heating mode, the first limit value is less than the second limit value. The first limit value can be different in cooling and heating modes, i.e., the first limit value is set accordingly based on the operating mode. Similarly, the second limit value is set according to the operating mode and the first limit value.
[0176] The first limit value is different from the second limit value, which can reduce the probability of the air-conditioning system fluctuating back and forth between the energy consumption reduction control operation and the preset comfort control operation near the critical value, which is beneficial to the stable operation of the air-conditioning system.
[0177] After responding to the energy reduction request, the air conditioning system can detect the comfort parameters of the current operating state in real time within the time period of the energy reduction request. As the air conditioning system continues to operate, the comfort parameters of the air conditioning system will also change. In order to enable the air conditioning system to better balance comfort and energy consumption, in some embodiments, as shown in FIG5 , the control method of the air conditioning system includes:
[0178] Step 131: According to the state that the air conditioning system is in the state of performing the energy consumption reduction control operation and the comfort parameter is worse than the third limit value, the air conditioning system is made to enter the first state, in which the air conditioning system maintains the current operating state.
[0179] The comfort parameter being worse than the third limit value includes: in cooling mode, the comfort parameter being greater than the third limit value; and in heating mode, the comfort parameter being less than the third limit value.
[0180] Step 132: Based on the air conditioning system being in the first state and the comfort parameter being worse than a fourth limit value, executing a step of causing the air conditioning system to perform a preset comfort control operation. The fourth limit value is worse than the third limit value, the fourth limit value is worse than or equal to the first limit value, and the third limit value is worse than or equal to the second limit value.
[0181] The comfort parameter being worse than the fourth limit value includes: in cooling mode, the comfort parameter being greater than the fourth limit value; in heating mode, the comfort parameter being less than the third limit value. The fourth limit value being worse than the third limit value includes: in cooling mode, the fourth limit value being greater than the third limit value; in heating mode, the fourth limit value being less than the third limit value. The fourth limit value being worse than the first limit value includes: in cooling mode, the fourth limit value being greater than the first limit value; in heating mode, the fourth limit value being less than the first limit value. The third limit value being worse than the second limit value includes: in cooling mode, the third limit value being greater than the second limit value; in heating mode, the third limit value being less than the second limit value.
[0182] Step 133: According to the state that the air-conditioning system is in the state of executing the preset comfort control operation and the comfort parameter is better than the fifth limit value, the air-conditioning system enters the second state, in which the air-conditioning system maintains the current operating state.
[0183] The comfort parameter is better than the fifth limit value, including: in cooling mode, the comfort parameter is less than the fifth limit value; in heating mode, the comfort parameter is greater than the fifth limit value.
[0184] Step 134: Based on the air conditioning system being in the second state and the comfort parameter being greater than a sixth limit value, the air conditioning system is caused to perform a preset comfort control operation. The fifth limit value is greater than or equal to the first limit value, the sixth limit value is greater than the fifth limit value, and the sixth limit value is greater than or equal to the second limit value.
[0185] The comfort parameter being superior to the sixth limit value includes: in cooling mode, the comfort parameter being less than the sixth limit value; in heating mode, the comfort parameter being greater than the sixth limit value. The fifth limit value being superior to the first limit value includes: in cooling mode, the fifth limit value being less than the first limit value; in heating mode, the fifth limit value being greater than the first limit value. The sixth limit value being superior to the fifth limit value includes: in cooling mode, the sixth limit value being less than the fifth limit value; in heating mode, the sixth limit value being greater than the fifth limit value. The sixth limit value being superior to the second limit value includes: in cooling mode, the sixth limit value being less than the second limit value; in heating mode, the sixth limit value being greater than the second limit value.
[0186] In one embodiment, the comfort parameter is a temperature parameter, and the difference between the fourth limit value and the third limit value is a first difference CB1, and the value of the first difference CB1 can be between 1°C and 3°C, specifically 1°C, 2°C, and 3°C; the difference between the fourth limit value and the fifth limit value is a second difference CA1, and the value of the second difference CA1 can be between 0°C and 2°C, specifically 0, 1°C, and 2°C; the difference between the fourth limit value and the sixth limit value is a third difference CB2, and the value of the third difference CB2 is between 1°C and 4°C, specifically 1°C, 2°C, 3°C, and 4°C.
[0187] As shown in Figure 9, taking cooling mode as an example, the comfort parameter is the real-time indoor room temperature, i.e., the indoor ambient temperature T1. The target parameter range is less than or equal to the indoor room set temperature Ts. ΔT_DRcool is the cooling comfort tolerance, which can be 2 to 5°C. When T1 ≥ Ts + ΔT_DRcool, the system comfort level no longer meets the required level. In this case, the unit will follow normal comfort control, i.e., execute the preset comfort control operation. CA1, CB1, and CB2 are the adjustment differentials. CA1 can range from 0 to 2°C, CB1 from 1 to 3°C, and CB2 from 1 to 4°C. When T1 is in the middle of the differential, the air conditioning system maintains its current operating state (i.e., the loads such as the outdoor unit compressor, outdoor fan, and indoor fan maintain their output). When T1 is at the bottom of the range (downward phase: T1 < Ts + ΔT_DRcool - CB2; upward phase: T1 < Ts + ΔT_DRcool - CB1), the air conditioning system can implement energy-saving control.
[0188] It should be noted that after the real-time indoor room temperature is first obtained in response to an energy reduction request, the air conditioning system can be assumed to be in a preset comfort control state. That is, energy reduction control can be implemented with the air conditioning system in the preset comfort control state as the starting point. In cooling mode, the rising phase refers to the phase in which the real-time indoor room temperature continuously rises under the action of the air conditioning system; the falling phase refers to the phase in which the real-time indoor room temperature decreases to varying degrees under the action of the air conditioning system.
[0189] As shown in Figure 10, similar control procedures are used in heating mode. ΔT_DRheat represents the heating comfort tolerance, which can be 2-5°C. HA1, HA2, and HB1 represent the adjustment differentials. HA1 can be 0-2°C, CB1 can be 1-3°C, and CB2 can be 1-4°C. The control range and operation process are similar to those in cooling mode and will not be further described here.
[0190] Among them, ΔT_DRcool and ΔT_DRheat can be preset values of the machine, or can be sent to the air-conditioning system from the outside along with the energy consumption response command.
[0191] It should be noted that the specific methods described above in cooling mode or heating mode can also be used as a reference for other similar controls to ensure indoor comfort. For example, instead of targeting TS, the current actual indoor temperature and humidity that humans feel comfortable with can be used as targets. The temperature and humidity targets can be inferred by the air-conditioning system itself or sent to the air-conditioning system from the outside.
[0192] In some embodiments, step 1032 of causing the air conditioning system to perform energy consumption reduction control operations, as shown in FIG6 , includes:
[0193] Step 141: Determine the required rated power ratio of the air conditioning system according to the energy consumption reduction request.
[0194] The demand rated power of the air conditioning system can be the percentage of the power that the current air conditioning system needs to be reduced to due to the energy consumption reduction request and the rated power of the air conditioning system. For example, the demand rated power can be 70% of the rated power of the air conditioning system.
[0195] Step 142: Based on the required rated power ratio of the air-conditioning system, control the air-conditioning system to perform energy consumption reduction control operations.
[0196] Using the air conditioning system's required rated power ratio as a reference for energy consumption reduction can ensure that when reducing energy consumption, the impact on the power grid (power sudden drop or surge) is reduced. At the same time, it can also more freely adapt to different energy consumption response command requirements, reduce the complexity of instructions, and save network communication bytes.
[0197] In some embodiments, based on the required rated power ratio of the air conditioning system, the air conditioning system is controlled to perform energy consumption reduction control operations, as shown in FIG7 , including:
[0198] Step 151: According to a first target calibration value that the current operating power of the air-conditioning system exceeds the required rated power, the air-conditioning system is enabled to perform an energy-saving control operation.
[0199] Step 152: According to the current operating power of the air-conditioning system operating state being lower than the second target calibration value, the air-conditioning system is enabled to perform a preset comfort control operation.
[0200] The second target calibration value is smaller than the first target calibration value, and the second target calibration value and the first target calibration value are set values after calibration of the required rated power.
[0201] When the air conditioning system responds to the energy reduction request, the current operating power of the air conditioning system changes in real time. In order to balance comfort and energy consumption requirements, in some embodiments of the present disclosure, as shown in FIG8 , based on the required rated power ratio of the air conditioning system, the air conditioning system is controlled to perform energy reduction control operations, including:
[0202] Step 161: According to the state in which the air conditioning system is in the state of performing the preset comfort control operation and the current operating power exceeds the third target calibration value of the required rated power, the air conditioning system is caused to enter a third state. In the third state, the air conditioning system maintains the current operating state.
[0203] Step 162: Based on the air conditioning system being in the third state and the current operating power exceeding the required rated power by a fourth target calibration value, the air conditioning system is caused to perform an energy reduction control operation. The third target calibration value is equal to or greater than the second target calibration value, and the fourth target calibration value is equal to or greater than the first target calibration value.
[0204] Step 163: Based on the fact that the air conditioning system is in a state of performing energy consumption reduction control operation and the current operating power is lower than the fifth target calibration value of the required rated power, the air conditioning system enters a fourth state. In the fourth state, the air conditioning system maintains the current operating state.
[0205] Step 164: Based on the air conditioning system being in the fourth state and the current operating power being lower than the sixth target calibration value of the required rated power, the air conditioning system is caused to perform a preset comfort control operation. The fifth target calibration value is the same as or lower than the first target calibration value, and the sixth target calibration value is the same as or lower than the first target calibration value.
[0206] Specifically, the difference between the third target calibration value and the required rated power of the air conditioning system is a fifth difference PB1, which can be 2% to 10% times the required rated power of the air conditioning system. The difference between the fourth target calibration value and the required rated power of the air conditioning system is a sixth difference PA1, which can be 0% to 5% times the required rated power of the air conditioning system. The difference between the fifth target calibration value and the required rated power of the air conditioning system can be a seventh difference PA2, which can be 1% to 7% times the required rated power of the air conditioning system. The difference between the sixth target calibration value and the required rated power of the air conditioning system is an eighth difference PB2, which can be 3% to 15% times the required rated power of the air conditioning system.
[0207] Referring to Figure 11, taking the reduction of the operating frequency of the compressor as an example, Ptarget is the target value transmitted by the energy consumption response command or the target value inferred by the unit based on the command, that is, the required rated power ratio. Ptarget can be, but is not limited to, the percentage of the rated power reduction under the current operating ambient temperature of the air-conditioning system, such as 70% Prated (70% of the rated power under the current state). Different levels of energy consumption response commands only need to modify the corresponding target value, such as from 70% to 50%, such as from 70% to 50%. Among them, PA1, PA2, PB1, and PB2 are control hysteresis. When the control target parameter is rated power, PA1 can be 0% to 5% Prated, PA2 can be 1% to 7% Prated, PB1 can be 2% to 10% Prated, and PB2 can be 3% to 15% Prated.
[0208] Under the premise that step 1032 is satisfied and the comfort parameter is within the target parameter range, the air-conditioning system performs the energy consumption reduction control operation. As shown in FIG12 , when the current operating power P of the air-conditioning system is greater than or equal to Ptarget-PA1, it is considered that the compressor needs to reduce the frequency to meet the energy consumption reduction target. Here, the action of reducing Z Hz (Hertz) every n seconds is performed to reduce the impact on the grid load. Optionally, n is 1 to 5s and Z can be 1 to 5Hz.
[0209] When the unit's current operating power P (also known as real-time power) is in the middle range, the compressor frequency is kept unchanged. When the unit's current operating power P is in the bottom range (i.e., the downward segment: P < Ptarget-PB2; the upward segment: P < Ptarget-PB1), it means that the real-time power is still far from the power required to reduce energy consumption, and the compressor is allowed to perform normal system comfort control (frequency adjustment PI control, etc.). In order to simplify the impact on system control, other components of the unit can be controlled according to the original PI control logic to ensure the reliability of the unit (such as the outdoor fan, indoor fan, outdoor unit electronic expansion valve, etc.)
[0210] The upward segment refers to a stage in which the current operating power gradually increases with the operating time, and the downward segment refers to a stage in which the current operating power gradually decreases with the operating time.
[0211] In some embodiments, reducing the power of the electric auxiliary heating device of the air-conditioning system may further include: controlling the electric auxiliary heating device to turn off according to the current indoor temperature exceeding a first preset temperature; controlling the electric auxiliary heating device to turn on according to the current indoor temperature being lower than a second preset temperature, and the first preset temperature being higher than the second preset temperature.
[0212] Specifically, the value range of the first preset temperature may be 10°C to 20°C, and the temperature difference a between the first preset temperature and the second preset temperature may be 1°C to 3°C.
[0213] As shown in Figure 12, when the unit includes an indoor electric auxiliary heating device, it can also be controlled by turning the electric auxiliary heating device on and off. It should be noted that the control of the compressor and the control of the electric auxiliary heating device can be relatively independent or used in combination. This embodiment is more inclined to the electric auxiliary heating control method for comfort considerations, as shown in Figure 12. T_set is the preset temperature (first preset temperature) at which the electric auxiliary heating is forced to shut down, and a is the control hysteresis. These two values can be preset values of the air-conditioning system, or they can be values sent from the outside along with an energy-saving command. The optional T_set is 10 to 20°C, and a is 1 to 3°C. This control method can ensure that when the indoor ambient temperature T1 is low, electric auxiliary heating is used to accelerate heating; and when the indoor ambient temperature T1 is high, energy saving effects are prioritized.
[0214] In some embodiments, as shown in FIG13 , the comfort parameter includes a first temperature parameter of an indoor unit of the air conditioning system. That is, in step 120 , obtaining the comfort parameter of the air conditioning system in its current operating state in response to an energy consumption reduction request may include step 1201 : obtaining the first temperature parameter of the indoor unit of the air conditioning system in response to the energy consumption reduction request. The first temperature parameter is a temperature parameter of the indoor unit of the air conditioning system in its current operating state and may include any of the following: the air outlet temperature of the air conditioning system, the temperature of the indoor heat exchanger, or the ambient temperature around the indoor heat exchanger. The limited temperature value is the target temperature value required for the air conditioning system in its current operating state, i.e., the temperature value set by the air conditioning system for the current operating state. This may be a temperature value input by the user into the air conditioning system or a temperature value set by the air conditioning system based on the current operating state. The limited temperature value corresponds to the first temperature parameter. For example, if the first temperature parameter is the air outlet temperature of the air conditioning system, the limited temperature value is a pre-set target temperature for the air outlet of the air conditioning system.
[0215] As shown in Figure 13, if the comfort parameter includes a first temperature parameter of an indoor unit of the air conditioning system, step 130 controls the operation of the air conditioning system based on the comfort parameter, which may include steps 201, 202, and 203. Specifically, step 201 comprises determining whether the first temperature parameter reaches a specified temperature value. If the first temperature parameter does not reach the specified temperature value, step 202 is executed to control the indoor fan to lower the air speed. If the first temperature parameter reaches the specified temperature value, step 203 is executed to terminate the control process.
[0216] In some embodiments, before obtaining the first temperature parameter of the indoor unit of the air-conditioning system, the method further includes controlling the compressor of the air-conditioning system to reduce the operating frequency according to the energy consumption reduction request; that is, step 1201, according to the energy consumption reduction request, obtains the first temperature parameter of the indoor unit of the air-conditioning system, including steps 211 and 212. Specifically, as shown in FIG14 , the control method of the air-conditioning system includes the following steps:
[0217] Step 110: receiving a request to reduce energy consumption;
[0218] Step 211: Controlling the compressor to reduce operating frequency according to the energy consumption reduction request;
[0219] Step 212: obtaining a first temperature parameter of an indoor unit of the air-conditioning system according to reducing the operating frequency of the compressor;
[0220] Step 201: Determine whether the first temperature parameter reaches a limited temperature value. If so, end the control process. If not, execute step 202.
[0221] Step 202: Control the indoor fan to lower the wind speed.
[0222] In this embodiment, the energy consumption reduction request refers to an instruction to reduce the current operating power of the air-conditioning system. The energy consumption reduction request can be an instruction actively issued by the processor in the air-conditioning system based on external conditions. For example, the intelligent air-conditioning system is based on the electricity price information of the power grid. When the electricity price is at a peak, in order to reduce the use cost, it actively lowers the current operating power of the air-conditioning system to reduce power consumption.
[0223] Alternatively, the request to reduce energy consumption can also be an instruction issued by an external device to the air-conditioning system. For example, the air-conditioning system is connected to a smart grid system. The smart grid system has high-performance power control devices with built-in digital computers, which are connected to each other through a network from power generation equipment to terminal power equipment (such as air-conditioning systems). When the load on the power grid is high during peak power consumption, the power control device issues instructions to reduce energy consumption to high-power-consuming equipment such as air-conditioning systems in order to improve the balance between power supply and demand in the power grid, optimize power distribution, prevent power outages, and reduce costs.
[0224] Alternatively, in the air conditioning system of the smart building system, the air conditioning system receives power allocation from the smart building system. When the electricity price is at a peak or the power supply load in the smart building is large, the smart building system sends an energy consumption reduction request to the air conditioning system.
[0225] In step 201 to step 202, since the compressor is the core component of the air conditioning heating, the energy consumption of the compressor accounts for the majority of the total energy consumption of the air conditioning. Therefore, reducing the operating frequency of the compressor can quickly reduce the total current operating power of the air conditioning system.
[0226] It should be noted that when the operating frequency of the compressor decreases, the cooling or heat output capacity of the air-conditioning system decreases accordingly. For example, in cooling mode, the evaporation temperature of the indoor heat exchanger is higher than the limit temperature value, making the outlet air temperature higher; or in heating mode, the condensation temperature of the indoor heat exchanger is lower than the limit temperature value, making the outlet air temperature lower, thereby affecting the user's comfort.
[0227] In this embodiment, in cooling mode, the first temperature parameter of the indoor unit specifically refers to the evaporation temperature of the indoor heat exchanger, and in heating mode, the first temperature parameter of the indoor unit specifically refers to the condensation temperature of the indoor heat exchanger.
[0228] It is understandable that in other embodiments, the first temperature parameter of the indoor unit may also be the temperature of the environment in which the indoor heat exchanger is located, or the outlet temperature of the air after the air flows through the indoor heat exchanger.
[0229] In steps 201 to 202, when the first temperature parameter reaches the limited temperature value, it indicates that the current evaporating temperature or condensing temperature of the indoor heat exchanger can meet the current user's cooling or heating demand, and the air outlet temperature of the air conditioning system can meet the user's actual demand. Therefore, there is no need to adjust the operating status of other components of the air conditioning system, the current operating status is maintained, and the control process ends. When the first temperature parameter does not reach the limited temperature value, it indicates that when the air conditioning system is under the influence of high grid load or high electricity price, the power of the air conditioning system is limited, the operating frequency of the compressor is reduced, and in the cooling mode, the evaporating temperature of the indoor heat exchanger is higher than the limited temperature value, resulting in a high air outlet temperature, or in the heating mode, the condensing temperature of the indoor heat exchanger is lower than the limited temperature value, resulting in a low air outlet temperature. Therefore, by lowering the wind speed of the indoor fan, the first temperature parameter can approach or reach the limited temperature value, so that the air outlet temperature of the air conditioning system is closer to the user's actual demand, thereby improving the user's comfort.
[0230] The specific meaning of the first temperature parameter not reaching the limited temperature value is: in the cooling mode, the first temperature parameter is greater than the first limited temperature value; in the heating mode, the first temperature parameter is less than the second limited temperature value.
[0231] The specific meaning of the first temperature parameter reaching the limited temperature value is: in the cooling mode, the first temperature parameter is less than or equal to the first limited temperature value; in the heating mode, the first temperature parameter is greater than or equal to the second limited temperature value.
[0232] The first limited temperature value and the second limited temperature value are related to the air outlet temperature set by the user. The first limited temperature value and the second limited temperature value may be equal or unequal, which is not specifically limited here.
[0233] Among them, the first limit temperature value and the second limit temperature value are related to the air outlet temperature value set by the user and the ambient temperature value of the indoor heat exchanger of the air-conditioning system. In some embodiments, the first limit temperature value is 3°C to 5°C lower than the air outlet temperature value (i.e., the cooling temperature) set by the user, and the second limit temperature value is 3°C to 5°C higher than the air outlet temperature value (i.e., the cooling temperature) set by the user.
[0234] As shown in FIG15 , according to an embodiment of the present disclosure, a method for controlling an air conditioning system includes the following steps:
[0235] Step 110: receiving a request to reduce energy consumption;
[0236] Step 101: In response to a request to reduce energy consumption, obtain the current operating power of the air conditioning system;
[0237] Step 102: Determine whether the current operating power of the air-conditioning system is less than or equal to the target power corresponding to the energy consumption reduction request. If so, directly execute step 213; otherwise, execute step 211 first, and then execute step 213; wherein, the current operating power is recorded as P, and the target power is recorded as P1. Step 102 is to determine the relationship between the current power P and the target power P1.
[0238] Step 211: Controlling the compressor to reduce the operating frequency according to the energy consumption reduction request;
[0239] Step 213: Acquire a first temperature parameter of an indoor unit of the air-conditioning system;
[0240] Step 201: Determine whether the first temperature parameter reaches a limited temperature value. If so, end the control process. If not, execute step 202.
[0241] Step 202: Control the indoor fan to lower the wind speed.
[0242] In step 110, receiving the energy consumption reduction request is to obtain the energy consumption reduction instruction, which specifically refers to: the cloud platform sends an energy consumption reduction request to the air conditioning system. The cloud platform can be a smart grid system or a smart building system.
[0243] In steps 101 to 102, the target power corresponding to the energy consumption reduction request refers to the power value of the air-conditioning system operation limited by the energy consumption reduction request issued by the smart grid system or the smart building system to the air-conditioning system. After receiving the energy consumption reduction request, it is first determined whether the current operating power of the air-conditioning system meets the target power corresponding to the energy consumption reduction request corresponding to the energy consumption reduction request. If the current operating power is less than or equal to the target power corresponding to the energy consumption reduction request, it means that the power consumption of the current air-conditioning system in the operating state meets the requirements, so that the air-conditioning system maintains the current operating state unchanged. If the current operating power is greater than the target power corresponding to the energy consumption reduction request, the compressor is controlled to reduce the operating frequency.
[0244] As shown in FIG16 , according to an embodiment of the present disclosure, a method for controlling an air conditioning system includes the following steps:
[0245] Step 110: receiving a request to reduce energy consumption;
[0246] Step 231: Obtain the operating mode of the air conditioning system;
[0247] Step 232: Turn off the electric auxiliary heating device according to the air conditioning system being in heating mode;
[0248] Step 233: Obtain the current operating power of the air conditioning system;
[0249] Step 102: Determine whether the current operating power of the air-conditioning system is less than or equal to the target power corresponding to the energy consumption reduction request. If so, directly execute step 213; otherwise, execute step 211 first, and then execute step 213; wherein, the current operating power is recorded as P, and the target power is recorded as P1. Step 102 is to determine the relationship between the current power P and the target power P1.
[0250] Step 211: Controlling the compressor to reduce the operating frequency according to the energy consumption reduction request;
[0251] Step 213: Acquire a first temperature parameter of an indoor unit of the air-conditioning system;
[0252] Step 201: Determine whether the first temperature parameter reaches a limited temperature value. If so, end the control process. If not, execute step 202.
[0253] Step 202: Control the indoor fan to lower the wind speed.
[0254] In steps 231 and 232, the air conditioning system determines whether the electric auxiliary heating device is enabled based on whether the system is in heating mode. If enabled, the device is disabled. If not, the compressor is controlled to reduce its operating frequency. Understandably, when the compressor is in heating mode, if the ambient temperature is too low and the compressor alone cannot meet the heating demand, the electric auxiliary heating device may need to be enabled to increase the heat output of the air conditioning system. However, the electric auxiliary heating device converts electrical energy into thermal energy for heating. The device contains a resistance wire, which, when powered on, converts electrical energy into heat and transfers it to the room. This consumes a significant amount of power. Therefore, when the air conditioning system receives a request to reduce energy consumption, the electric auxiliary heating device is prioritized for deactivation. Understandably, the electric auxiliary heating device does not activate when the air conditioning system is in cooling mode. Therefore, the control steps in cooling mode do not consider the electric auxiliary heating device.
[0255] As shown in FIG17 , according to an embodiment of the present disclosure, a method for controlling an air conditioning system includes the following steps:
[0256] Step 110: receiving a request to reduce energy consumption;
[0257] Step 101: In response to a request to reduce energy consumption, obtain the current operating power of the air conditioning system;
[0258] Step 102: Determine whether the current operating power of the air-conditioning system is less than or equal to the target power corresponding to the energy consumption reduction request. If so, directly execute step 213; otherwise, execute step 211 first, and then execute step 213; wherein, the current operating power is recorded as P, and the target power is recorded as P1. Step 102 is to determine the relationship between the current power P and the target power P1.
[0259] Step 211: Controlling the compressor to reduce operating frequency according to the energy consumption reduction request;
[0260] Step 213: Acquire a first temperature parameter of an indoor unit of the air-conditioning system;
[0261] Step 201: Determine whether the first temperature parameter reaches a limited temperature value. If so, end the control process. If not, execute step 241.
[0262] Step 241: Determine whether the wind speed of the indoor fan is at the lowest speed. If so, end the control process. If not, execute step 242.
[0263] Step 242: Control the indoor fan to reduce the speed by one gear, and return to step 201.
[0264] In steps 241 to 242, before controlling the indoor fan to lower the wind speed, determine whether the current wind speed of the indoor fan is at the lowest wind speed. If the indoor fan speed is not at the lowest wind speed, the indoor fan can be controlled to lower one speed so that the first temperature parameter approaches or reaches the limited temperature value.
[0265] As shown in FIG18 , according to an embodiment of the present disclosure, a method for controlling an air conditioning system includes the following steps:
[0266] Step 110: receiving a request to reduce energy consumption;
[0267] Step 101: In response to a request to reduce energy consumption, obtain the current operating power of the air conditioning system;
[0268] Step 102: Determine whether the current operating power of the air conditioning system is less than or equal to the target power corresponding to the energy consumption reduction request. If so, execute step 213; if not, execute steps 251, 252, and 253, and then execute step 213;
[0269] Step 251: Obtain the operating frequency of the compressor;
[0270] Step 252: Determine whether the operating frequency f is greater than the frequency lower limit f1. If so, go to step 253; otherwise, go to step 213.
[0271] Step 253: Control the compressor to reduce the first frequency value based on the operating frequency;
[0272] Step 213: Acquire a first temperature parameter of an indoor unit of the air-conditioning system;
[0273] Step 201: Determine whether the first temperature parameter reaches a limited temperature value. If so, end the control process. If not, execute step 241.
[0274] Step 241: Determine whether the wind speed of the indoor fan is at the lowest speed. If so, end the control process. If not, execute step 242.
[0275] Step 242: Control the indoor fan to reduce the speed by one gear, and return to step 201.
[0276] In steps 251 to 253, the compressor in the air-conditioning system in the present disclosure refers to a variable frequency compressor. Compared with a compressor with a constant speed, a variable frequency compressor has a speed that can be continuously adjusted within a certain range and can continuously change the output energy. Different types of compressors have different frequency ranges while ensuring stable operation. For example, the operating frequency range of some types of compressors is 20Hz to 120Hz, and the lower limit of the frequency of this type of compressor is 20Hz; the operating frequency range of other types of compressors is 25Hz to 130Hz, and the lower limit of the frequency of this type of compressor is 205Hz; and the operating frequency range of some types of compressors is 30Hz to 130Hz, and the lower limit of the frequency of this type of compressor is 30Hz. Therefore, based on different types of compressors, their lower limits of frequency have different values, which are not specifically limited here.
[0277] When the operating frequency of the compressor is greater than the frequency lower limit, it indicates that the compressor is currently operating normally and there is room for the compressor operating frequency to be reduced. Therefore, the operating frequency of the compressor is controlled to be reduced by the first frequency value to further reduce the current operating power of the entire air-conditioning system and reduce the power consumption of the air-conditioning system. When the operating frequency of the compressor is less than or equal to the frequency lower limit, it indicates that there is no room for the compressor operating frequency to be reduced. If the operating frequency of the compressor is further reduced, it will cause abnormal operation of the compressor, unstable operation of the air-conditioning system, or damage to the compressor. Therefore, further reduction of the operating frequency is stopped and step 213 is executed to obtain the first temperature parameter of the indoor unit.
[0278] In some embodiments, if the operating frequency of the compressor is less than the lower frequency limit, the operating frequency of the compressor is increased to the lower frequency limit to ensure that the compressor can operate normally.
[0279] In some embodiments, the first frequency value is set to a fixed value, and the value range of the first frequency value can be 1 Hz to 20 Hz, or 0.1 Hz to 10 Hz. For example, the first frequency value can be set to 1 Hz, 2 Hz, 3 Hz, 5 Hz, 6 Hz, 7 Hz, 8 Hz, 9 Hz, 10 Hz, 12 Hz, 14 Hz, 15 Hz, 18 Hz, 20 Hz, etc.
[0280] In other embodiments, the first frequency value can be adjusted according to the difference between the current operating frequency value of the compressor and the frequency lower limit value. For example, the first frequency value is set to be positively correlated with the difference between the operating frequency value and the frequency lower limit value. The larger the difference, the larger the first frequency value. In the process of multiple adjustments to the compressor, as the difference between the operating frequency of the compressor and the frequency lower limit value decreases, the first frequency value also decreases. In the process of multiple adjustments to the compressor, the first frequency value is the largest when the operating frequency of the compressor is reduced for the first time. After the operating frequency of the compressor is reduced for the first time, the first frequency value gradually decreases to achieve precise adjustment of the compressor frequency reduction. Moreover, in each adjustment process, the first frequency value is less than the difference between the current operating frequency value of the compressor and the frequency lower limit value, so as to avoid the operating frequency of the compressor from decreasing below the frequency lower limit value, thereby improving the stability of the compressor operation.
[0281] In other embodiments, the first frequency value can be adjusted according to the difference between the current operating power of the air-conditioning system and the specified power corresponding to the energy consumption reduction request. The first frequency value is set to be positively correlated with the difference between the current operating power of the air-conditioning system and the specified power corresponding to the energy consumption reduction request. The larger the difference, the larger the first frequency value. In the process of multiple adjustments to the compressor, as the difference between the operating frequency of the compressor and the frequency lower limit decreases, the first frequency value also decreases, so as to quickly reduce the current operating power of the air-conditioning system, so that the air-conditioning system can quickly respond to the energy consumption reduction request.
[0282] It should be emphasized that during each adjustment process, the first frequency value is less than the difference between the current operating frequency value of the compressor and the frequency lower limit value, so as to prevent the operating frequency of the compressor from falling below the frequency lower limit value and improve the stability of the compressor operation.
[0283] As shown in FIG19 , according to an embodiment of the present disclosure, a method for controlling an air conditioning system includes the following steps:
[0284] Step 110: receiving a request to reduce energy consumption;
[0285] Step 211: Controlling the compressor to reduce operating frequency according to the energy consumption reduction request;
[0286] Step 212: obtaining a first temperature parameter of an indoor unit of the air-conditioning system according to reducing the operating frequency of the compressor;
[0287] Step 201: Determine whether the first temperature parameter reaches a limited temperature value. If so, end the control process. If not, execute steps 202 and 261.
[0288] Step 202: Control the indoor fan to lower the wind speed;
[0289] Step 261: Control the outdoor fan to lower the wind speed.
[0290] In step 202 and step 261, when the first temperature parameter does not reach the limited temperature value, the indoor fan and the outdoor fan may be controlled to lower the wind speed at the same time.
[0291] In detail, when the wind speed of the outdoor fan and the indoor fan is lowered, the power of the indoor fan and the outdoor fan is also reduced. Therefore, the main function of lowering the wind speed of the outdoor unit is to reduce the current operating power of the air-conditioning system. Under the premise of being able to meet the normal heat exchange between the refrigerant in the outdoor heat exchanger and the external air flow, so that the refrigerant in the outdoor heat exchanger can absorb enough heat or cold, lowering the wind speed of the outdoor fan can further reduce the current operating power of the air-conditioning system. Understandably, when the current operating power of the air-conditioning system remains unchanged, by lowering the wind speed of the outdoor fan, the operating frequency of the compressor can be increased, thereby increasing the cooling or heat output capacity of the air-conditioning system, which is conducive to making the first temperature parameter of the indoor unit closer to or reaching the limited temperature value, further optimizing the air outlet temperature of the air-conditioning system, and improving user comfort.
[0292] In some embodiments, the gear position of the outdoor fan is positively correlated with the operating frequency. Specifically, when the compressor's operating frequency is high, the air conditioning system's cooling or heating output is high, and therefore, the outdoor heat exchanger requires a large amount of heat exchange. Therefore, the outdoor fan is set to a high gear position to improve the heat exchange efficiency of the outdoor heat exchanger. When the compressor's operating frequency is low, the air conditioning system's cooling or heating output is low, and therefore, the outdoor heat exchanger requires a small amount of heat exchange. Therefore, the outdoor fan's gear position is lowered to a low gear position, thereby reducing the current operating power of the air conditioning system while still meeting the heat exchange requirement of the outdoor heat exchanger.
[0293] In some embodiments, the outdoor fan has n gears, and the operating frequency range of the compressor in a stable operating state is divided into n frequency regions from high to low, each frequency region corresponding to a gear of the outdoor fan. For example, if the operating frequency range of the compressor in a stable operating state is 20 Hz to 120 Hz, the outdoor fan is divided into five gears from high to low, with the fifth gear having the highest speed and the first gear having the lowest speed, then 20 Hz to 120 Hz is divided into five regions from high to low, with the fifth region being 100 Hz to 120 Hz, corresponding to the fifth gear of the outdoor fan; the fourth region being 80 Hz to 100 Hz, corresponding to the fourth gear of the outdoor fan; the third region being 60 Hz to 80 Hz, corresponding to the third gear of the outdoor fan; the second region being 40 Hz to 60 Hz, corresponding to the second gear of the outdoor fan; and the first region being 20 Hz to 40 Hz, corresponding to the first gear of the outdoor fan.
[0294] In some embodiments, when the first temperature parameter does not reach a specified temperature value, the opening area of the air outlet is reduced to further reduce the air volume of the air conditioning system, bringing the first temperature parameter closer to or reaching the specified temperature value, thereby improving user comfort. Specifically, in this embodiment, the opening area of the air outlet is changed by adjusting the angle of the air guide in the air conditioning system to achieve the purpose of reducing the air volume of the air conditioning system.
[0295] It should be noted that, in some embodiments, when the current operating power of the air-conditioning system is less than or equal to the target power corresponding to the energy consumption reduction request, and the wind speed of the indoor fan has been reduced to the lowest speed, but the first temperature parameter of the indoor unit has not yet reached the limited temperature value, the operating frequency of the compressor is controlled to increase to improve the cooling or heat output capacity of the air-conditioning system and ensure the comfort of the user.
[0296] As shown in FIG20 , according to an embodiment of the present disclosure, in the heating mode, the control method of the air-conditioning system includes the following steps:
[0297] Step 110: receiving a request to reduce energy consumption;
[0298] Step 271: Turn off the electric auxiliary heating device and control the indoor fan to reduce the wind speed to the lowest speed;
[0299] Step 233: Obtain the current operating power of the air conditioning system;
[0300] Step 102: Determine whether the current operating power of the air conditioning system is less than or equal to the target power corresponding to the energy consumption reduction request. If so, the process ends; otherwise, execute steps 251, 252, and 253.
[0301] Step 251: Obtain the operating frequency of the compressor;
[0302] Step 252: Determine whether the operating frequency f is greater than the frequency lower limit f1. If so, proceed to step 253; otherwise, end.
[0303] Step 253: Control the compressor to reduce the first frequency value based on the operating frequency; and return to step 102.
[0304] In this embodiment, when the air-conditioning system receives a request to reduce energy consumption, if the air-conditioning system is in heating mode, it first determines whether the electric auxiliary heating device is turned on. If the electric auxiliary heating device is turned on, the electric auxiliary heating is turned off, and the wind speed of the indoor fan is controlled to be lowered to the lowest gear. After the wind speed of the indoor fan is lowered, the current operating power of the air-conditioning system is obtained, and it is determined whether the current operating power reaches the target power corresponding to the energy reduction request, and the compressor is controlled to reduce the frequency.
[0305] With the popularization of carbon neutrality and the growing use of energy-saving air conditioners, staggered power supply from power grids is becoming more and more common during peak electricity consumption periods. During staggered power supply from power grids, it is often necessary to adjust the power consumption of air conditioning systems. In the process of staggered power supply from power grids, a relatively difficult point is to obtain the load that the air conditioning unit can respond to (the load that the air conditioning unit can respond to is the power consumption that the air conditioning system can reduce in response to the staggered demand of the power grid). The reason is that the actual output load of air conditioners from different manufacturers is different under different operating conditions, and the power load capacity that can respond also changes with the operating conditions. In some technologies, big data algorithms are used to obtain historical operating data and unit load conditions under user habits, but there are no estimated results or it is difficult to estimate the responsiveness (the power consumption that can be reduced).
[0306] In response to the above-mentioned problem that the adjustable power is difficult to predict, in some embodiments, the control method of the air-conditioning system disclosed in the present invention also includes a step of determining the adjustable power. Based on the step of determining the adjustable power, the cloud platform (such as the power control platform) can obtain the load to which the air-conditioning system can respond, that is, the cloud platform can understand the energy consumption of the air-conditioning system, so that it can schedule power consumption more reasonably.
[0307] The step of determining the adjustable power can be applied to an air conditioning system. As shown in FIG21 , the step of determining the adjustable power includes step 301 and step 302 .
[0308] Step 301: pre-store load information of the air-conditioning system, where the load information is used to represent power parameters of the air-conditioning system.
[0309] The load information can be directly a power parameter, such as the rated power of the air conditioning system in different modes. The load information can also be a parameter from which the relevant power can be calculated. For example, the load information can be parameters such as rated current and rated voltage. The relevant power parameters of the air conditioning system can be calculated based on the rated current and rated voltage.
[0310] Load information can be used to characterize the power parameters of the entire air conditioning system, allowing the cloud platform to obtain the power parameters of the entire air conditioning system. Load information can also be used to characterize the power parameters of some components of the air conditioning system, allowing the cloud platform to obtain the power parameters of some components of the air conditioning system.
[0311] In some embodiments, the load information of the air conditioning system may include the load information of the outdoor unit of the air conditioning system. The power parameters of the outdoor unit can be determined based on the load information of the outdoor unit. Specifically, the load information can be the power parameters of the outdoor unit directly, or the power parameters of the outdoor unit can be calculated based on this load information. The load information of the outdoor unit can be stored in a memory chip of the outdoor unit. The power parameter of the outdoor unit can be the sum of the power of the outdoor fan, compressor, and expansion valve installed outdoors and connected to the outdoor heat exchanger, or the power of the outdoor fan itself, etc., and can be set as needed.
[0312] Specifically, in one implementation, the load information of the outdoor unit includes a first mapping relationship between the power parameters of the outdoor unit, environmental parameters and the operating mode of the air-conditioning system. The power parameters of the outdoor unit include the rated power of the outdoor unit and / or the minimum power of the outdoor unit.
[0313] Rated power generally refers to the maximum power of the device in its current state. For systems with variable-frequency compressors, minimum power refers to the power the unit can produce at its lowest frequency under various operating conditions. Specifically, the minimum power of an outdoor unit is typically the power of the unit under various operating conditions, as determined through experiments or simulations. The minimum power of an outdoor unit can be the sum of the minimum powers of the outdoor fan, compressor, and expansion valve.
[0314] The operating modes may include cooling mode and heating mode. In these modes, the environmental parameters may include indoor temperature and outdoor temperature. Specifically, when the indoor unit is used as a condenser, one or both of the dry-bulb temperature and the dry-bulb and wet-bulb temperature may be used as a reference. When the indoor unit is used as an evaporator, one or more of the dry-bulb temperature, the wet-bulb temperature, and the dry-bulb and wet-bulb temperature may be used as a reference. Specifically, when the outdoor unit is used as a condenser, one or both of the dry-bulb temperature and the dry-bulb and wet-bulb temperature may be used as a reference. When the outdoor unit is used as an evaporator, one or more of the dry-bulb temperature, the wet-bulb temperature, and the dry-bulb and wet-bulb temperature may be used as a reference. The operating mode may also include a dehumidification mode. In this mode, the environmental parameters may include indoor humidity and outdoor humidity. The operating mode may also include a purification mode. In this mode, the environmental parameters may include outdoor air cleanliness and outdoor air cleanliness.
[0315] For example, as shown in FIG24 , when the air conditioning system operates in cooling mode, a first mapping relationship can be established based on the indoor temperature and the outdoor temperature. Specifically, when the indoor temperature is greater than or equal to 30 degrees and the outdoor temperature is less than or equal to 10 degrees, the rated power of the outdoor unit can be 2000W (W, watt, power unit); when the indoor temperature is greater than or equal to 30 degrees and the outdoor temperature is between 11 degrees and 29 degrees, the rated power of the outdoor unit can be 2500W (W, watt, power unit); when the indoor temperature is greater than or equal to 30 degrees and the outdoor temperature is between 30 degrees and 39 degrees, the rated power of the outdoor unit can be 3000W; when the indoor temperature is greater than or equal to 30 degrees and the outdoor temperature is between 40 degrees, the rated power of the outdoor unit can be 2000W. When the indoor temperature is between 20 degrees and 30 degrees and the outdoor temperature is less than or equal to 10 degrees, the rated power of the outdoor unit can be 1800W; when the indoor temperature is between 20 degrees and 30 degrees and the outdoor temperature is between 11 degrees and 29 degrees, the rated power of the outdoor unit can be 2300W (W, watt, power unit); when the indoor temperature is between 20 degrees and 30 degrees and the outdoor temperature is between 30 degrees and 39 degrees, the rated power of the outdoor unit can be 2800W; when the indoor temperature is between 20 degrees and 30 degrees and the outdoor temperature is 40 degrees, the rated power of the outdoor unit can be 1800W. When the indoor temperature is less than or equal to 20 degrees and the outdoor temperature is less than or equal to 10 degrees, the rated power of the outdoor unit can be 1600W; when the indoor temperature is less than or equal to 20 degrees and the outdoor temperature is between 11 degrees and 29 degrees, the rated power of the outdoor unit can be 2100W (W, watt, power unit); when the indoor temperature is less than or equal to 20 degrees and the outdoor temperature is between 30 degrees and 39 degrees, the rated power of the outdoor unit can be 2600W; when the indoor temperature is less than or equal to 20 degrees and the outdoor temperature is 40 degrees, the rated power of the outdoor unit can be 1600W.
[0316] As shown in FIG25 , the air conditioning system operates in heating mode, and a first mapping relationship can be established based on the indoor temperature and the outdoor temperature. Specifically, when the indoor temperature is greater than or equal to 20 degrees Celsius and the outdoor temperature is less than or equal to -7 degrees Celsius, the rated power of the outdoor unit can be 1500W; when the indoor temperature is greater than or equal to 20 degrees Celsius and the outdoor temperature is between -6 degrees Celsius and +5 degrees Celsius, the rated power of the outdoor unit can be 2000W; when the indoor temperature is greater than or equal to 20 degrees Celsius and the outdoor temperature is between 6 degrees Celsius and 19 degrees Celsius, the rated power of the outdoor unit can be 2500W; when the indoor temperature is greater than or equal to 20 degrees Celsius and the outdoor temperature is above 20 degrees Celsius, the rated power of the outdoor unit can be 1500W. When the indoor temperature is between 10 and 20 degrees and the outdoor temperature is less than or equal to minus 7 degrees, the rated power of the outdoor unit can be 1300W; when the indoor temperature is between 10 and 20 degrees and the outdoor temperature is between minus 6 degrees and plus 5 degrees, the rated power of the outdoor unit can be 1800W; when the indoor temperature is between 10 and 20 degrees and the outdoor temperature is between 6 and 19 degrees, the rated power of the outdoor unit can be 2300W; when the indoor temperature is between 10 and 20 degrees and the outdoor temperature is above 20 degrees, the rated power of the outdoor unit can be 1300W. When the indoor temperature is 10 degrees or below and the outdoor temperature is less than or equal to minus 7 degrees, the rated power of the outdoor unit can be 1100W; when the indoor temperature is 10 degrees or below and the outdoor temperature is between minus 6 degrees and plus 5 degrees, the rated power of the outdoor unit can be 1600W; when the indoor temperature is 10 degrees or below and the outdoor temperature is between 6 degrees and 19 degrees, the rated power of the outdoor unit can be 2100W; when the indoor temperature is 10 degrees or below and the outdoor temperature is above 20 degrees, the rated power of the outdoor unit can be 1100W.
[0317] As shown in FIG26 , the air conditioning system operates in cooling mode, and a first mapping relationship can be established based on the indoor temperature and the outdoor temperature. Specifically, when the indoor temperature is greater than or equal to 30 degrees and the outdoor temperature is less than or equal to 10 degrees, the minimum power of the outdoor unit can be 200W (W, watt, power unit); when the indoor temperature is greater than or equal to 30 degrees and the outdoor temperature is between 11 degrees and 29 degrees, the minimum power of the outdoor unit can be 250W; when the indoor temperature is greater than or equal to 30 degrees and the outdoor temperature is between 30 degrees and 39 degrees, the minimum power of the outdoor unit can be 300W; when the indoor temperature is greater than or equal to 30 degrees and the outdoor temperature is between 40 degrees, the minimum power of the outdoor unit can be 200W. When the indoor temperature is between 20 degrees and 30 degrees and the outdoor temperature is less than or equal to 10 degrees, the minimum power of the outdoor unit can be 180W; when the indoor temperature is between 20 degrees and 30 degrees and the outdoor temperature is between 11 degrees and 29 degrees, the minimum power of the outdoor unit can be 230W (W, watt, power unit); when the indoor temperature is between 20 degrees and 30 degrees and the outdoor temperature is between 30 degrees and 39 degrees, the minimum power of the outdoor unit can be 280W; when the indoor temperature is between 20 degrees and 30 degrees and the outdoor temperature is 40 degrees, the minimum power of the outdoor unit can be 180W. When the indoor temperature is less than or equal to 20 degrees and the outdoor temperature is less than or equal to 10 degrees, the minimum power of the outdoor unit can be 160W; when the indoor temperature is less than or equal to 20 degrees and the outdoor temperature is between 11 degrees and 29 degrees, the minimum power of the outdoor unit can be 210W (W, watt, power unit); when the indoor temperature is less than or equal to 20 degrees and the outdoor temperature is between 30 degrees and 39 degrees, the minimum power of the outdoor unit can be 260W; when the indoor temperature is less than or equal to 20 degrees and the outdoor temperature is 40 degrees, the minimum power of the outdoor unit can be 160W.
[0318] As shown in FIG27 , the air conditioning system operates in heating mode, and a first mapping relationship can be established based on the indoor temperature and the outdoor temperature. Specifically, when the indoor temperature is greater than or equal to 20 degrees Celsius and the outdoor temperature is less than or equal to -7 degrees Celsius, the minimum power of the outdoor unit can be 150W; when the indoor temperature is greater than or equal to 20 degrees Celsius and the outdoor temperature is between -6 degrees Celsius and +5 degrees Celsius, the minimum power of the outdoor unit can be 200W; when the indoor temperature is greater than or equal to 20 degrees Celsius and the outdoor temperature is between 6 degrees Celsius and 19 degrees Celsius, the minimum power of the outdoor unit can be 250W; and when the indoor temperature is greater than or equal to 20 degrees Celsius and the outdoor temperature is above 20 degrees Celsius, the minimum power of the outdoor unit can be 150W. When the indoor temperature is between 10 and 20 degrees and the outdoor temperature is less than or equal to minus 7 degrees, the minimum power of the outdoor unit can be 130W; when the indoor temperature is between 10 and 20 degrees and the outdoor temperature is between minus 6 degrees and plus 5 degrees, the minimum power of the outdoor unit can be 180W; when the indoor temperature is between 10 and 20 degrees and the outdoor temperature is between 6 and 19 degrees, the minimum power of the outdoor unit can be 230W; when the indoor temperature is between 10 and 20 degrees and the outdoor temperature is above 20 degrees, the minimum power of the outdoor unit can be 130W. When the indoor temperature is 10 degrees or below and the outdoor temperature is less than or equal to minus 7 degrees, the minimum power of the outdoor unit can be 110W; when the indoor temperature is 10 degrees or below and the outdoor temperature is between minus 6 degrees and plus 5 degrees, the minimum power of the outdoor unit can be 160W; when the indoor temperature is 10 degrees or below and the outdoor temperature is between 6 degrees and 19 degrees, the minimum power of the outdoor unit can be 210W; when the indoor temperature is 10 degrees or below and the outdoor temperature is above 20 degrees, the minimum power of the outdoor unit can be 110W.
[0319] In some embodiments, the load information includes load information of an indoor unit of the air conditioning system. The load information of the indoor unit can be used to determine the power parameters of the indoor unit. Specifically, the load information can be directly the power parameters of the indoor fan. The load information of the indoor unit can be stored in a memory chip of the indoor unit.
[0320] Specifically, in one implementation, the load information of the indoor unit includes a second mapping relationship between the power parameter of the indoor unit, the wind speed of the indoor unit and the static pressure of the indoor unit. The power parameter of the indoor unit includes the rated power and / or minimum power of the indoor unit.
[0321] The wind speed is the gear of the indoor fan, specifically the fan's operating frequency, speed, or level. For example, the wind speed can be divided into high, medium, and low. Static pressure is positively correlated with the indoor unit's airflow resistance. When the indoor unit's fan is not operating, static pressure refers to the pressure exerted by the gas on the surface parallel to the airflow. In other words, static pressure refers to the pressure exerted by the gas to overcome the pipe resistance.
[0322] As shown in FIG28 , the diagram shows a second mapping relationship corresponding table of an indoor unit. Among them, when the wind gear is at high level and the static pressure is 0Pa (Pascal, pressure unit), the rated power of the indoor unit can be 100W; when the wind gear is at high level and the static pressure is 20Pa (Pascal, pressure unit), the rated power of the indoor unit can be 120W; when the wind gear is at high level and the static pressure is 40Pa (Pascal, pressure unit), the rated power of the indoor unit can be 140W; when the wind gear is at medium level and the static pressure is 0Pa (Pascal, pressure unit), the rated power of the indoor unit can be 80W; when the wind gear is at medium level and the static pressure is 20Pa (Pascal, pressure unit), the rated power of the indoor unit can be 80W. Unit), the rated power of the indoor unit may be 100W; when the wind gear is at medium gear and the static pressure is 40Pa (Pascal, pressure unit), the rated power of the indoor unit may be 120W; when the wind gear is at low gear and the static pressure is 0Pa (Pascal, pressure unit), the rated power of the indoor unit may be 60W; when the wind gear is at low gear and the static pressure is 20Pa (Pascal, pressure unit), the rated power of the indoor unit may be 80W; when the wind gear is at low gear and the static pressure is 40Pa (Pascal, pressure unit), the rated power of the indoor unit may be 100W.
[0323] It should be noted that the three wind speed settings are provided as examples, and the static pressure range is also provided as an example. The actual range depends on the factory settings of the indoor unit. For indoor units, in addition to wind speed and static pressure, other parameters such as operating mode, indoor temperature, and air pressure can be incorporated to further accurately determine the rated output power of the indoor fan. Specifically, wind speed, static pressure, operating mode, indoor temperature, and air pressure can be mapped to the indoor unit's power parameters.
[0324] It should be noted that the load information of the outdoor unit is not limited to being stored on the storage chip of the outdoor unit, for example, it can also be stored on the switch chip of the air-conditioning system; similarly, the load information of the indoor unit is not limited to being stored on the storage chip of the indoor unit, for example, it can also be stored on the switch chip of the air-conditioning system.
[0325] Step 302: In response to the cloud platform's request to retrieve load information, the load information is sent to the cloud platform, so that the cloud platform determines the adjustable power of the air-conditioning system according to the load information.
[0326] Adjustable power refers to adjustable energy consumption. The outdoor unit may include an outdoor circuit board, which may be equipped with a memory, a processor, a gateway, etc. The load information of the outdoor unit may be sent by the outdoor unit to the cloud platform. The indoor unit may include an indoor circuit board, which may be equipped with a memory, a processor, a gateway, etc. The load information of the indoor unit may be sent by the indoor unit to the cloud platform. The load information of the indoor unit may also be sent to the outdoor unit first, and then the load information of the indoor unit and the load information of the outdoor unit are sent to the cloud platform together via the outdoor unit. The load information of the outdoor unit may also be sent to the indoor unit first, and then the load information of the indoor unit and the load information of the outdoor unit are sent to the cloud platform together via the indoor unit.
[0327] Optionally, in some embodiments, as shown in FIG22 , the step of determining the adjustable power further includes step 303 : receiving a request for reducing energy consumption from the cloud platform, and causing the air-conditioning system to perform a power reduction operation according to the request for reducing energy consumption.
[0328] The process of receiving a request to reduce energy consumption from the cloud platform can be the opposite of the process of sending load information. The request to reduce power consumption from the cloud platform can be received by either the indoor unit or the outdoor unit, or by the entire unit. Power reduction operations performed by the air conditioning system include, but are not limited to, reducing the operating frequency of the indoor fan, the operating frequency of the outdoor fan, the operating frequency of the compressor, and / or changing the opening of the expansion valve.
[0329] In a specific embodiment, the load information of the air conditioning system may include the load information of the outdoor unit and the load information of the indoor unit of the air conditioning system. The load information of the outdoor unit is stored on a memory chip of the outdoor unit, including a first mapping relationship between the rated power of the outdoor unit, environmental parameters, and the operating mode of the air conditioning system; the load information of the indoor unit is stored on a memory chip of the indoor unit, including a second mapping relationship between the rated power of the indoor unit, the damper of the indoor unit, and the static pressure of the indoor unit. In this embodiment, the cloud platform can accurately determine the maximum load of the air conditioning system, and executing a shutdown operation can clearly reduce the maximum peak power of the power grid. That is, based on the maximum rated power of the indoor unit and the maximum rated power of the outdoor unit, the maximum power required by the air conditioning system can be determined. In this way, the remote end can determine the amount of electricity that can be saved when the air conditioning system is shut down. The amount of electricity saved is equal to the electricity corresponding to the sum of the maximum rated power of the indoor unit and the maximum rated power of the outdoor unit.
[0330] In another specific embodiment, the load information of the air conditioning system may include load information of the air conditioning system's outdoor unit. This outdoor unit load information is stored on a memory chip in the outdoor unit and includes a first mapping relationship between the outdoor unit's minimum power, environmental parameters, and the air conditioning system's operating mode. In this specific embodiment, the cloud platform can accurately determine the minimum load of the outdoor unit and determine the minimum power consumption required to be provided to the outdoor unit of the air conditioning system while maintaining operation. Furthermore, the cloud platform can also determine the current load power that can be reduced based on the current power reported in real time by the air conditioning system.
[0331] It should be noted that the load information of the outdoor unit may also include a mapping relationship between the rated power of the outdoor unit and environmental parameters and the operating mode of the air-conditioning system, as well as a first mapping relationship between the minimum power of the outdoor unit and environmental parameters and the operating mode of the air-conditioning system. Under the same operating conditions, the difference between the rated power and the minimum power is the maximum power value that the outdoor unit can reduce in response to grid demand without shutting down. In this case, the cloud platform can obtain the maximum power consumption that the outdoor unit can reduce while ensuring that the outdoor unit does not shut down. Similarly, the load information of the indoor unit may also include a mapping relationship between the rated power of the indoor unit and environmental parameters and the operating mode of the air-conditioning system, as well as a first mapping relationship between the minimum power of the indoor unit and environmental parameters and the operating mode of the air-conditioning system. Under the same operating conditions, the difference between the rated power and the minimum power is the maximum power value that the indoor unit can reduce in response to grid demand without shutting down. In this case, the cloud platform can obtain the maximum power consumption that the indoor unit can reduce while ensuring that the indoor unit does not shut down.
[0332] According to the steps for determining the adjustable power disclosed in the present invention, the indoor unit and / or outdoor unit of the air-conditioning system pre-stores load information for the cloud platform to retrieve. The load information can characterize the power parameters of the air-conditioning system. The air-conditioning system can send the load information to the cloud platform, so that the cloud platform can determine the adjustable power of the air-conditioning system based on the load information (that is, the load that the air-conditioning system can respond to), so that the cloud platform can more conveniently estimate the load capacity of the air-conditioning system, thereby better meeting the peak-shaving response requirements of the power grid.
[0333] As shown in FIG23 , some embodiments of the present disclosure provide a method for determining adjustable power, which is applied to a cloud platform and includes:
[0334] Step 311: Send a request for retrieving load information to the air-conditioning system to obtain the load information of the air-conditioning system.
[0335] Specifically, the cloud platform may send a request to the air-conditioning system to retrieve the load information, and the air-conditioning system may send the load information of the air-conditioning system to the cloud platform in response to the request.
[0336] Step 312: Determine the available power of the air conditioning system based on the load information.
[0337] Determining the available power of the air-conditioning system based on the load information may include: determining the available power of the outdoor unit based on the acquired load information of the outdoor unit.
[0338] Specifically, when the load information of the outdoor unit includes a first mapping relationship between the power parameter of the outdoor unit and the environmental parameter and the operating mode of the air-conditioning system, determining the available power of the outdoor unit based on the obtained load information of the outdoor unit includes: obtaining the power parameter of the outdoor unit according to the current environmental parameter, the current operating mode of the air-conditioning system, and the first mapping relationship, and determining the available power of the outdoor unit based on the power parameter. When the air conditioner is in the on state, the outdoor temperature measured by the outdoor unit and the indoor temperature measured by the indoor unit in the current operating state of the air conditioner can be directly called, and the current operating mode of the air conditioner can be directly called. When the air conditioner is not in the on state, the outdoor temperature in the current environmental parameter can be directly obtained through the weather forecast platform, and the current operating mode of the air conditioner can be determined based on the current environment. For example, in summer, it can be assumed that the current operating mode of the air-conditioning system is cooling mode, and then the highest rated power or the lowest minimum power corresponding to the current outdoor temperature in the cooling mode is called as a basis to infer the available power of the outdoor unit.
[0339] Among them, determining the available power of the air-conditioning system based on the load information may include: determining the available power of the indoor unit based on the load information of the indoor unit of the air-conditioning system. Specifically, when the load information of the indoor unit includes a second mapping relationship between the power parameter of the indoor unit and the wind speed of the indoor unit and the static pressure of the indoor unit, the power parameter of the indoor unit can be obtained according to the second mapping relationship, and the available power of the indoor unit can be determined based on the power parameter. For example, when the air conditioner is turned on, the current gear and static pressure of the indoor unit can be directly retrieved to obtain the rated power of the indoor unit; when the air conditioner is not turned on, the power information contained in the load information of the indoor unit can be integrated according to the actual situation to infer the available power of the indoor unit, for example, the maximum power of the indoor unit can be used as the basis for inferring the available power of the indoor unit.
[0340] The method for determining adjustable power provided in some embodiments of the present disclosure, when applied to a cloud platform, may further include:
[0341] Step 313: Sending an energy consumption reduction request to the air-conditioning system according to the available power of the air-conditioning system, so that the air-conditioning system performs a power reduction operation according to the energy consumption reduction request.
[0342] The cloud platform can send a request to the air-conditioning system to reduce power based on power scheduling requirements and the power consumption that the air-conditioning system can respond to. For example, when power is relatively tight, the cloud platform can send a shutdown request to the air-conditioning system. When power is slightly tight, the cloud platform can send a request to reduce the power by 10%. For another example, the cloud platform can send a request to the air-conditioning system to operate at the lowest power.
[0343] According to the method for determining the adjustable power disclosed in the present invention, the cloud platform can determine the adjustable power of the air-conditioning system (that is, the load that the air-conditioning system can respond to) based on the load information, so that the cloud platform can more conveniently estimate the load capacity of the air-conditioning system, thereby better meeting the peak response requirements of the power grid.
[0344] Some embodiments of the present disclosure also provide a system for determining adjustable power, including an air conditioning system and a cloud platform. The air conditioning system pre-stores load information for the air conditioning system, which represents the power parameters of the air conditioning system. In response to a request from the cloud platform for load information, the system sends the load information to the cloud platform. The cloud platform obtains the load information of the user's air conditioning system and determines the adjustable power of the air conditioning system based on the load information.
[0345] Specifically, the air-conditioning system pre-stores the load information of the air-conditioning system. The cloud platform sends a request to the air-conditioning system to retrieve the load information as needed. The air-conditioning system responds to the cloud platform's request to retrieve the load information and sends the load information to the cloud platform. The cloud platform determines the available power of the air-conditioning system based on the load information.
[0346] As shown in Figure 31, some embodiments of the present disclosure also provide an air-conditioning system. According to the implementation mode of the present disclosure, an air-conditioning system is also proposed. The air-conditioning system includes a refrigerant circulation pipeline, and a compressor 10, an indoor unit, a throttling component and an outdoor unit connected in series in the refrigerant circulation pipeline. The indoor unit includes an indoor heat exchanger and an indoor fan corresponding to the indoor heat exchanger. The outdoor unit includes an outdoor heat exchanger and an outdoor fan corresponding to the outdoor heat exchanger. An electric auxiliary heating device 40 is also provided in the indoor unit. A temperature sensor 50 is provided in the indoor heat exchanger and is used to detect a first temperature parameter of the indoor unit. The controller 60 is electrically connected to the compressor 10, the indoor fan 20, the outdoor fan 30, the electric auxiliary heating device 40 and the temperature sensor 50. The controller 60 can control the operation of the air-conditioning system based on the control method of the air-conditioning system proposed in the present disclosure.
[0347] Among them, the controller 60 can also be called a control device, which is used to execute the control method of the air-conditioning system proposed in the present disclosure or any embodiment of the present disclosure. It may include a memory 601 and at least one processor 600, wherein the memory 601 stores a program or instruction that can be run on the processor 600, and when the processor 600 executes the program or instruction, the steps of the control method of the air-conditioning system in the present disclosure are implemented.
[0348] As shown in Figure 29, some embodiments of the present disclosure also provide an electronic device 6, which can be an air-conditioning system or a cloud platform, including: a processor 600, a memory 601, a bus 602 and a communication interface 603, and the processor 600, the communication interface 603 and the memory 601 are connected through the bus 602; the memory 601 stores a computer program that can be run on the processor 600, and when the processor 600 runs the computer program, it executes the control method of the air-conditioning system provided by any of the aforementioned embodiments of the present disclosure.
[0349] The memory 601 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage. The system network element communicates with at least one other network element via at least one communication interface 603 (which may be wired or wireless), and may utilize the Internet, a wide area network, a local area network, a metropolitan area network, or the like.
[0350] Bus 602 may be an ISA bus, a PCI bus, or an EISA bus. The bus may be divided into an address bus, a data bus, a control bus, and the like. Memory 601 is used to store programs, and processor 600 executes the programs upon receiving execution instructions. The air conditioning system control method disclosed in any of the aforementioned embodiments of the present disclosure may be applied to or implemented by processor 600.
[0351] The processor 600 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method may be completed by hardware integrated logic circuits in the processor 600 or by software instructions. The processor 600 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present disclosure. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present disclosure may be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory 601 , and the processor 600 reads the information in the memory 601 and completes the steps of the above method in combination with its hardware.
[0352] The electronic device provided by the embodiment of the present disclosure and the control method of the air-conditioning system provided by the embodiment of the present disclosure are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented by them.
[0353] The present disclosure also provides a computer-readable storage medium corresponding to the air conditioning system control method provided in the aforementioned embodiments. The computer-readable storage medium stores computer-readable instructions. When the computer-readable instructions are executed by one or more processors, the one or more processors execute the air conditioning system control method provided in any of the embodiments of the present disclosure. Referring to FIG. 30 , the computer-readable storage medium shown is a disc 30 , which stores a computer program (i.e., a program product). When executed by a processor, the computer program executes the air conditioning system control method provided in any of the aforementioned embodiments.
[0354] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be specifically implemented in any computer-readable storage medium for use by an instruction execution system, device, or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device, or apparatus and execute instructions), or for use in conjunction with such instruction execution systems, devices, or apparatuses. For the purposes of this specification, a "computer-readable storage medium" can be any device that can contain, store, communicate, propagate, or transmit a program for use by an instruction execution system, device, or apparatus, or in conjunction with such instruction execution systems, devices, or apparatuses. Examples of such computer-readable storage media may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory, or other optical or magnetic storage media, which are not further detailed here.
[0355] The computer-readable storage medium provided by the above-mentioned embodiments of the present disclosure and the control method of the air-conditioning system provided by the embodiments of the present disclosure are based on the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the application programs stored therein.
[0356] The processor involved in the present disclosure may be, for example, an air conditioning system, including but not limited to window air conditioners, split wall-mounted air conditioners, split floor-standing air conditioners, ceiling-mounted air conditioners, embedded air conditioners, and central air conditioners. A control method for the air conditioning system may include but is not limited to at least one of the following steps: receiving an energy consumption reduction request; controlling a compressor to reduce operating frequency based on the energy consumption reduction request; obtaining a first temperature parameter of an indoor unit; determining whether the first temperature parameter reaches a specified temperature value; controlling an indoor fan to reduce a wind speed based on the first temperature parameter not reaching the specified temperature value; and terminating the control process based on the first temperature parameter reaching the specified temperature value.
[0357] It should be understood that various parts of the present disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement the present invention: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.
[0358] It should be noted that in the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present disclosure can be practiced without these specific details. In some instances, well-known structures and technologies are not shown in detail so as not to obscure the understanding of this description.
[0359] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various application aspects, in the above description of exemplary embodiments of the present disclosure, various features of the present disclosure are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed approach should not be interpreted as reflecting a schematic diagram that the claimed disclosure requires more features than are expressly recited in each claim. Rather, as reflected in the claims below, application aspects lie in less than all the features of the individual embodiments disclosed above. Accordingly, the claims that follow the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present disclosure.
[0360] In addition, those skilled in the art will understand that although some of the embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of this disclosure and form different embodiments. For example, in the claims below, any one of the claimed embodiments may be used in any combination. The above are only optional specific implementation methods of the present disclosure, but the scope of protection of the present disclosure is not limited thereto, and any changes or replacements that can be easily thought of by any person skilled in the art within the technical scope disclosed in this disclosure should be covered within the scope of protection of this disclosure. Therefore, the scope of protection of the present disclosure shall be based on the scope of protection of the claims.
Claims
1. A method for controlling an air conditioning system, wherein: include: receiving a request to reduce energy consumption; According to the energy consumption reduction request, obtaining a comfort parameter of the air conditioning system in a current operating state; The operation of the air conditioning system is controlled according to the comfort parameter.
2. The control method of the air conditioning system according to claim 1, wherein: According to the comfort parameter, controlling the operation of the air conditioning system includes: According to the comfort parameter exceeding the target parameter range, causing the air conditioning system to perform a preset comfort control operation; According to the comfort parameter being within the target parameter range, the air conditioning system is enabled to perform an energy consumption reduction control operation.
3. The control method of the air conditioning system according to claim 2, wherein: The control method of the air conditioning system further includes: In response to the energy consumption reduction request, obtaining the current operating power of the air conditioning system; According to the current operating power being less than or equal to the target power corresponding to the energy consumption reduction request, maintaining the preset comfort control operation running; According to the current operating power being greater than the target power corresponding to the energy consumption reduction request, a step of acquiring a comfort parameter of the air-conditioning system in the current operating state is performed.
4. The control method of the air conditioning system according to claim 2 or 3, wherein: The step of causing the air conditioning system to perform a preset comfort control operation according to the comfort parameter exceeding the target parameter range includes: causing the air conditioning system to perform the preset comfort control operation according to the comfort parameter being worse than a first limit value; The step of causing the air conditioning system to perform the energy-saving control operation according to the comfort parameter being within the target parameter range includes: causing the air conditioning system to perform the energy-saving control operation according to the comfort parameter being better than a second limit value; The first limit value is inferior to the second limit value.
5. The control method of the air conditioning system according to claim 4, wherein: The control method of the air conditioning system comprises: according to the state that the air conditioning system is in the state of executing the energy consumption reduction control operation and the comfort parameter is worse than a third limit value, making the air conditioning system enter a first state, and in the first state the air conditioning system maintains a current operating state; According to the air conditioning system being in the first state and the comfort parameter being worse than a fourth limit value, executing the step of causing the air conditioning system to perform the preset comfort control operation; The fourth limit value is inferior to the third limit value, the fourth limit value is inferior to the first limit value or is the same as the first limit value, and the third limit value is inferior to the second limit value or is the same as the second limit value.
6. The control method of the air conditioning system according to claim 5, wherein: The control method of the air conditioning system comprises: According to the state that the air conditioning system is in the state of executing the preset comfort control operation and the comfort parameter is better than a fifth limit value, the air conditioning system enters a second state, and in the second state the air conditioning system maintains a current operating state; According to the air conditioning system being in the second state, the comfort parameter is better than a sixth limit value, causing the air conditioning system to perform a preset comfort control operation; The fifth limit value is better than the first limit value or is the same as the first limit value, the sixth limit value is better than the fifth limit value, and the sixth limit value is better than the second limit value or is the same as the second limit value.
7. The control method of the air conditioning system according to claim 6, wherein: The comfort parameter is a temperature parameter, the difference between the fourth limit value and the third limit value is a first difference, and the value of the first difference is between 1° C. and 3° C.; And / or, the comfort parameter is a temperature parameter, the difference between the fourth limit value and the fifth limit value is a second difference, and the second difference is between 0° C. and 2° C.; And / or, the comfort parameter is a temperature parameter, the difference between the fourth limit value and the sixth limit value is a third difference, and the third difference is between 1°C and 4°C.
8. The control method of the air conditioning system according to any one of claims 2 to 7, wherein: The step of causing the air conditioning system to perform an energy consumption reduction control operation includes: Determining a required rated power ratio of the air conditioning system according to the energy consumption reduction request; Based on the required rated power ratio of the air-conditioning system, the air-conditioning system is controlled to perform an energy consumption reduction control operation.
9. The control method of the air conditioning system according to claim 8, wherein: The controlling the air conditioning system to perform an energy consumption reduction control operation based on the required rated power ratio of the air conditioning system includes: According to the first target calibration value that the current operating power of the air-conditioning system in the operating state exceeds the required rated power, causing the air-conditioning system to perform an energy-saving control operation; According to the current operating power of the operating state of the air-conditioning system being lower than the second target calibration value, causing the air-conditioning system to perform a preset comfort control operation; The second target calibration value is less than the first target calibration value.
10. The control method of the air conditioning system according to claim 9, wherein: The controlling the air conditioning system to perform an energy consumption reduction control operation based on the required rated power ratio of the air conditioning system includes: According to the state that the air conditioning system is in the state of executing the preset comfort control operation and the current operating power exceeds the third target calibration value of the required rated power, the air conditioning system is caused to enter a third state, in which the air conditioning system maintains the current operating state; According to the air conditioning system being in the third state and the current operating power exceeding the fourth target calibration value of the required rated power, causing the air conditioning system to perform an energy consumption reduction control operation; The third target calibration value is the same as or greater than the second target calibration value, and the fourth target calibration value is the same as or greater than the first target calibration value.
11. The control method of the air conditioning system according to claim 10, wherein: The controlling the air conditioning system to perform an energy consumption reduction control operation based on the required rated power ratio of the air conditioning system includes: According to the state that the air conditioning system is in the state of executing the energy consumption reduction control operation, and the current operating power is lower than the fifth target calibration value of the required rated power, the air conditioning system is caused to enter a fourth state, in which the air conditioning system maintains the current operating state; According to the air conditioning system being in the fourth state and the current operating power being lower than a sixth target calibration value of the required rated power, causing the air conditioning system to perform the preset comfort control operation; The fifth target calibration value is the same as the first target calibration value or less than the second target calibration value, and the sixth target calibration value is the same as the second target calibration value or less than the first target calibration value.
12. The control method of the air conditioning system according to claim 11, wherein: The difference between the third target calibration value and the required rated power of the air-conditioning system is a fifth difference, and the fifth difference is 2% to 10% times the required rated power of the air-conditioning system; And / or, the difference between the fourth target calibration value and the required rated power of the air-conditioning system is a sixth difference, and the sixth difference is 0% to 5% times the required rated power of the air-conditioning system; And / or, the difference between the fifth target calibration value and the required rated power of the air-conditioning system is a seventh difference, and the seventh difference is 1% to 7% times the required rated power of the air-conditioning system; And / or, the difference between the sixth target calibration value and the required rated power of the air-conditioning system is an eighth difference, and the eighth difference is 3% to 15% times the required rated power of the air-conditioning system.
13. The control method of the air conditioning system according to any one of claims 2 to 12, wherein: The step of causing the air conditioning system to perform an energy consumption reduction control operation comprises: The current operating frequency of the air conditioning system is reduced, wherein the operating frequency of the air conditioning system includes the operating frequency of the outdoor fan, the operating frequency of the indoor fan of the air conditioning system and / or the operating frequency of the compressor of the air conditioning system. The rate is reduced.
14. The control method of the air conditioning system according to claim 13, wherein: The reducing the current operating frequency of the air-conditioning system includes reducing the power of the operating frequency of the air-conditioning system by reducing the preset frequency at every preset time.
15. The control method of the air conditioning system according to any one of claims 2 to 14, wherein: The step of causing the air conditioning system to perform an energy consumption reduction control operation includes: According to the current operating state of the air-conditioning system being a heating condition, the power of the electric auxiliary heating device of the air-conditioning system is reduced.
16. The control method of the air conditioning system according to claim 15, wherein: The step of reducing the power of the electric auxiliary heating device of the air conditioning system comprises: According to the current indoor temperature exceeding the first preset temperature, controlling the electric auxiliary heating device to be turned off; According to the current indoor temperature being lower than the second preset temperature, the electric auxiliary heating device is controlled to be turned on, and the first preset temperature is higher than the second preset temperature.
17. The control method of the air conditioning system according to claim 16, wherein: The first preset temperature ranges from 10°C to 20°C; And / or, the temperature difference between the first preset temperature and the second preset temperature is 1°C to 3°C.
18. The control method of the air conditioning system according to claim 1, wherein: The step of obtaining the comfort parameter of the air-conditioning system in the current operating state according to the energy consumption reduction request includes: obtaining a first temperature parameter of an indoor unit of the air-conditioning system according to the energy consumption reduction request, wherein the first temperature parameter includes any one of the following: an air outlet temperature of the air-conditioning system, a temperature of an indoor heat exchanger, and an ambient temperature around the indoor heat exchanger; The step of controlling the operation of the air conditioning system according to the comfort parameter comprises: Determining whether the first temperature parameter reaches a limited temperature value; According to the first temperature parameter not reaching the limited temperature value, controlling the indoor fan to lower the wind speed; When the first temperature parameter reaches the limited temperature value, the control process ends.
19. The control method of the air conditioning system according to claim 18, wherein: The obtaining of a first temperature parameter of an indoor unit of the air-conditioning system comprises: According to the energy consumption reduction request, controlling the compressor of the air conditioning system to reduce the operating frequency; According to the compressor reducing the operating frequency, a first temperature parameter of the indoor unit of the air-conditioning system is obtained.
20. The control method of the air conditioning system according to claim 19, wherein: Before controlling the compressor of the air conditioning system to reduce the operating frequency, the method further includes: In response to the energy consumption reduction request, obtaining the current operating power of the air conditioning system; Determining whether the current operating power is less than or equal to the target power corresponding to the energy consumption reduction request; According to the current operating power being less than or equal to the target power corresponding to the energy consumption reduction request, executing the step of acquiring a first temperature parameter of the indoor unit of the air-conditioning system; According to the current operating power being greater than the target power corresponding to the energy consumption reduction request, the step of controlling the compressor to reduce the operating frequency is first executed, and then according to the compressor reducing the operating frequency, the first temperature parameter of the indoor unit of the air-conditioning system is obtained.
21. The control method of the air conditioning system according to claim 20, wherein: Before obtaining the current operating power of the air conditioning system, the control method further includes: Obtaining an operating mode of the air conditioning system; According to the air conditioning system being in a heating mode and turning off the electric auxiliary heating device, the step of determining whether the current operating power is less than or equal to the target power corresponding to the energy consumption reduction request is performed.
22. The control method of the air conditioning system according to any one of claims 18 to 21, wherein: The control of lowering the wind speed of the indoor fan includes: Determining whether the wind speed of the indoor fan is at the lowest speed; According to the fact that the wind speed of the indoor fan is not at the lowest speed, the indoor fan is controlled to reduce one speed, and a step of determining whether the first temperature parameter reaches a limited temperature value is performed; The control process is ended according to the wind speed of the indoor fan being at the lowest speed.
23. The control method of the air conditioning system according to any one of claims 19 to 21, wherein: The step of controlling the compressor of the air conditioning system to reduce the operating frequency comprises: Get the operating frequency of the compressor; Determining whether the operating frequency is greater than a frequency lower limit; According to the operating frequency being greater than the frequency lower limit value, controlling the compressor to reduce a first frequency value based on the operating frequency; According to the operating frequency being less than or equal to the frequency lower limit value, the operating frequency is stopped from being lowered, and the step of obtaining the comfort parameter of the air-conditioning system in the current operating state is performed.
24. The control method of the air conditioning system according to any one of claims 19 to 21, wherein: The control method further comprises: Controlling the outdoor fan of the air conditioning system to lower the wind speed according to the first temperature parameter not reaching the limited temperature value; Wherein, the gear position of the outdoor fan is positively correlated with the operating frequency.
25. The control method of the air conditioning system according to any one of claims 18 to 24, wherein: The first temperature parameter not reaching the limited temperature value includes: in cooling mode, the first temperature parameter is greater than the first limited temperature value; in heating mode, the first temperature parameter is less than the second limited temperature value; The first temperature parameter reaching the limited temperature value includes: in the cooling mode, the first temperature parameter is less than or equal to the first limited temperature value; in the heating mode, the first temperature parameter is greater than or equal to the second limited temperature value.
26. The control method of the air conditioning system according to any one of claims 18 to 25, wherein: The control method of the air conditioning system further includes: The opening area of the air outlet is reduced according to the first temperature parameter not reaching the limited temperature value.
27. The control method of the air conditioning system according to any one of claims 1 to 25, wherein: The control method of the air conditioning system further includes a step of determining an adjustable amount of electricity, and the step of determining the adjustable amount of electricity includes: Pre-storing load information of the air-conditioning system, wherein the load information is used to characterize power parameters of the air-conditioning system; In response to a request from a cloud platform to retrieve load information, the load information is sent to the cloud platform, so that the cloud platform determines the adjustable power of the air-conditioning system according to the load information.
28. The control method of the air conditioning system according to claim 27, wherein: The load information includes load information of an outdoor unit of the air conditioning system.
29. The control method of the air conditioning system according to claim 28, wherein: The load information of the outdoor unit includes a first mapping relationship among a power parameter of the outdoor unit, an environmental parameter of the outdoor unit and an operation mode of the air-conditioning system. The power parameter of the outdoor unit includes a rated power of the outdoor unit and / or a minimum power of the outdoor unit.
30. The control method of the air conditioning system according to claim 29, wherein: The operation mode includes a cooling mode and a heating mode, and the environmental parameters include an indoor temperature and an outdoor temperature; And / or, the operation mode includes a dehumidification mode, and the environmental parameter includes indoor humidity and outdoor humidity; And / or, the operation mode includes a purification mode, and the environmental parameters include outdoor air cleanliness and outdoor air cleanliness.
31. The control method of the air conditioning system according to any one of claims 27 to 30, wherein: The load information includes load information of indoor units of the air conditioning system.
32. The control method of the air conditioning system according to claim 31, wherein: The load information of the indoor unit includes a second mapping relationship among a power parameter of the indoor unit, a windshield of the indoor unit and a static pressure of the indoor unit. The power parameter of the indoor unit includes a rated power and / or a minimum power of the indoor unit.
33. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: The processor runs the computer program to implement the control method of the air-conditioning system according to any one of claims 1-32.
34. A computer-readable storage medium having a computer program stored thereon, wherein: The program is executed by a processor to implement a control method for an air-conditioning system according to any one of claims 1 to 32.
35. An air conditioning system, wherein: It includes a controller, which is used to execute the control method of the air-conditioning system as described in any one of claims 1-32.
Citation Information
Patent Citations
Control method for wall-mounted frequency conversion air conditioner
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