CN114001442A - Control method and device of air source heat pump unit and electronic equipment - Google Patents
Control method and device of air source heat pump unit and electronic equipment Download PDFInfo
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- CN114001442A CN114001442A CN202111209668.3A CN202111209668A CN114001442A CN 114001442 A CN114001442 A CN 114001442A CN 202111209668 A CN202111209668 A CN 202111209668A CN 114001442 A CN114001442 A CN 114001442A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/10—Weather information or forecasts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The application relates to a control method and device of an air source heat pump unit, electronic equipment and a storage medium. The method comprises the following steps: acquiring current monitoring parameters in the working process of the air source heat pump unit, wherein the current monitoring parameters comprise at least one of current indoor temperature and current outdoor meteorological parameters; if the terminal load demand is determined to be changed according to the current monitoring parameters, determining a target water supply temperature, wherein the target water supply temperature is determined according to a preset indoor temperature, a current indoor temperature, current outdoor meteorological parameters and a preset water supply temperature model base; and adjusting the water supply temperature of the air source heat pump unit according to the target water supply temperature. The method can improve the operation efficiency of the air source heat pump unit.
Description
Technical Field
The present disclosure relates to the field of industrial technologies, and in particular, to a method and an apparatus for controlling an air source heat pump unit, an electronic device, and a storage medium.
Background
With the development of industrial technology, the air source heat pump unit can be used as a renewable energy building application technology and is widely applied to building heating.
The operation efficiency of the air source heat pump unit is influenced by the water supply temperature, and in the heating condition, the COP (coefficient of performance) of the unit is averagely improved by 2-4% when the water supply temperature of the air source heat pump unit is reduced by 1 ℃, so that the air source heat pump unit can reduce the water supply temperature as much as possible under the heating requirement.
In actual engineering projects, the air source heat pump unit usually adopts a mode of constant water temperature operation or manual setting of water supply temperature, and the problem of low unit operation efficiency can be caused.
Disclosure of Invention
In view of the above, it is necessary to provide a control method and device, an electronic device, and a storage medium for an air source heat pump unit, which can improve the operation efficiency of the air source heat pump unit.
A control method of an air source heat pump unit comprises the following steps:
acquiring current monitoring parameters in the working process of the air source heat pump unit, wherein the current monitoring parameters comprise at least one of current indoor temperature and current outdoor meteorological parameters;
if the terminal load demand is determined to be changed according to the current monitoring parameters, determining a target water supply temperature, wherein the target water supply temperature is determined according to a preset indoor temperature, a current indoor temperature, current outdoor meteorological parameters and a preset water supply temperature model base;
and adjusting the water supply temperature of the air source heat pump unit according to the target water supply temperature.
In one embodiment, the method is characterized in that:
the current monitored parameter comprises the current indoor temperature;
and if the difference value between the current indoor temperature and the preset indoor temperature is larger than the preset difference value, determining that the terminal load demand changes according to the current monitoring parameters.
In one embodiment, the method is characterized in that:
the current monitoring parameters comprise the current outdoor meteorological parameters;
and if the change of the current outdoor meteorological parameter in a preset time period is larger than a meteorological parameter threshold value, determining that the terminal load requirement is changed according to the current monitoring parameter.
In one embodiment, the preset water supply temperature model base comprises a correlation relationship between load demand and water supply temperature;
the determining of the target water supply temperature includes:
determining the terminal load requirement of the air source heat pump unit based on the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters;
and determining the target water supply temperature when the air source heat pump unit meets the tail end load requirement based on the incidence relation between the load requirement and the water supply temperature.
In one embodiment, the preset water supply temperature model base further comprises a correlation between load demand and heat energy difference;
the determining the target water supply temperature when the air source heat pump unit meets the terminal load demand based on the incidence relation between the load demand and the water supply temperature comprises the following steps:
determining real-time heat energy difference of the air source heat pump unit corresponding to the tail end load demand based on the incidence relation between the load demand and the heat energy difference;
and determining a target water supply temperature corresponding to the real-time return water temperature according to the real-time return water temperature and the supply return water temperature difference corresponding to the real-time heat energy difference.
In one embodiment, the preset water supply temperature model base comprises an associated relation among related meteorological parameters, terminal loads, air supply point parameters, return water temperatures and water supply temperatures;
the determining of the target water supply temperature includes:
acquiring current air supply point parameters and current water return temperature;
determining the terminal load requirement of the air source heat pump unit based on the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters;
and fitting the current outdoor meteorological parameter, the tail end load demand, the current air supply point parameter and the current water return temperature based on the incidence relation among the meteorological parameter, the tail end load, the air supply point parameter, the water return temperature and the water supply temperature, and determining the target water supply temperature.
In one embodiment, the process of establishing the preset water supply temperature model library comprises the following steps:
acquiring a time-by-time outdoor air state parameter of a heating season, and calculating a time-by-time building heating load according to the time-by-time outdoor air state parameter;
calculating the time-by-time heat energy difference of the air conditioner based on the determined air supply amount of the tail end equipment and the time-by-time heating load of the building, and obtaining an air supply point parameter according to the time-by-time heat energy difference;
determining the return water temperature or the air supply temperature according to the air supply point parameter;
and determining the system water supply temperature of the hourly meteorological parameters according to the system water supply and return temperature difference and the return temperature or the air supply temperature.
In one embodiment, the adjusting the supply water temperature of the air source heat pump unit according to the target supply water temperature includes:
if the preset indoor temperature is higher than the current indoor temperature, increasing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is increased is lower than or equal to the target water supply temperature; if the water supply temperature after the preset temperature step length is increased is larger than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature;
if the preset indoor temperature is lower than the current indoor temperature, reducing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is reduced is greater than or equal to the target water supply temperature; and if the water supply temperature after the preset temperature step length is reduced is less than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature.
The utility model provides an air source heat pump set's controlling means, the device is including monitoring parameter acquisition module, target water supply temperature confirm module and temperature regulation module:
the monitoring parameter acquisition module is used for acquiring current monitoring parameters in the working process of the air source heat pump unit, and the current monitoring parameters comprise at least one of current indoor temperature and current outdoor meteorological parameters;
the target water supply temperature determining module is used for determining a target water supply temperature if the terminal load demand is determined to be changed according to the current monitoring parameters, and the target water supply temperature is determined according to a preset indoor temperature, a current indoor temperature, current outdoor meteorological parameters and a preset water supply temperature model base;
and the temperature adjusting module is used for adjusting the water supply temperature of the air source heat pump unit according to the target water supply temperature.
An electronic device comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the method for controlling the air source heat pump unit when executing the computer program.
A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the above-mentioned method of controlling an air source heat pump unit.
According to the control method, the control device, the electronic equipment and the storage medium of the air source heat pump unit, the current monitoring parameter of the air source heat pump unit in the working process is obtained, so that when the change of the terminal load demand is determined according to the current monitoring parameter, the target water supply temperature is obtained, the water supply temperature of the air source heat pump unit is adjusted according to the target water supply temperature, and the target water supply temperature is determined according to the preset indoor temperature, the current outdoor meteorological parameter and the preset water supply temperature model base. The running efficiency of the air source heat pump unit can be improved by changing the water supply temperature of the air source heat pump unit.
Drawings
FIG. 1 is an environmental diagram illustrating the control method of an air source heat pump unit according to an embodiment;
FIG. 2 is a schematic flow chart illustrating a control method of an air source heat pump unit according to an embodiment;
FIG. 3 is a schematic flow chart illustrating a method for controlling an air source heat pump unit according to another embodiment;
FIG. 4 is a block diagram showing the structure of a control apparatus of the air source heat pump unit according to one embodiment;
FIG. 5 is a diagram of the internal structure of an electronic device in one embodiment;
FIG. 6 is a diagram illustrating an internal structure of an electronic device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The control method of the air source heat pump unit can be applied to a control system of the air source heat pump unit shown in fig. 1. The control system of the air source heat pump unit may include an electronic device 102 and an air source heat pump unit 104, wherein the air source heat pump unit 104 may include a compressor, a condenser, an expansion valve, and an evaporator. The electronic device 102 is connected to the air source heat pump unit 104. In some embodiments, the electronic device 102 may be a terminal device, which may be independent of the air source heat pump unit 104 or integrated with the air source heat pump unit 104. The terminal device may be, but is not limited to, various control chips, personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices. In other embodiments, the electronic device 102 may also be a server independent from the air-source heat pump unit 104, and the server may be implemented by an independent server or a server cluster composed of a plurality of servers.
In one embodiment, as shown in fig. 2, a method for controlling an air source heat pump unit is provided, which is described by taking the method as an example applied to the electronic device in fig. 1, and includes the following steps:
step S202, obtaining current monitoring parameters in the working process of the air source heat pump unit, wherein the current monitoring parameters comprise at least one of current indoor temperature and current outdoor meteorological parameters.
In one embodiment, the air source heat pump unit is a steam compression refrigeration or heating cycle driven by a motor, and a centralized air conditioner taking air as a heat source, and the air source heat pump unit can be used for preparing hot water at the ambient temperature of not lower than-20 ℃.
In one embodiment, the current monitoring parameter of a certain building can be obtained according to the actual project requirement, wherein the current monitoring parameter can include at least one of the current indoor temperature and the current outdoor meteorological parameter, and the current outdoor meteorological parameter can include outdoor dry bulb temperature, wet bulb temperature, dew point temperature, enthalpy value, relative humidity, and the like.
In one embodiment, in the working process of the heat pump unit, the current indoor temperature and the current outdoor meteorological parameters in the working process of the heat pump unit can be obtained, specifically, only the current indoor temperature can be obtained, only the current outdoor meteorological parameters can be obtained, and both the current indoor temperature and the current outdoor meteorological parameters can be obtained.
And step S204, if the terminal load requirement is determined to be changed according to the current monitoring parameters, determining a target water supply temperature, wherein the target water supply temperature is determined according to a preset indoor temperature, a current indoor temperature, current outdoor meteorological parameters and a preset water supply temperature model base.
In one embodiment, the end requirement refers to a heat load required to be provided by the air source heat pump unit in any building, the target water supply temperature refers to the optimal water supply temperature of the air source heat pump unit under the condition that the end load requirement can be met, the preset indoor temperature refers to the preset indoor temperature of the building, the current indoor temperature refers to the real-time measured indoor temperature, the current outdoor meteorological parameter refers to the real-time measured outdoor meteorological parameter, and the preset water supply temperature model base is a temperature model base formed by various piece-by-piece data.
In one embodiment, the target supply water temperature may be obtained when the end load demand provided to the chiller varies.
And S206, adjusting the water supply temperature of the air source heat pump unit according to the target water supply temperature.
In one embodiment, after the target supply water temperature is determined, the supply water temperature of the air source heat pump unit can be adjusted according to the target supply water temperature.
In the control method of the air source heat pump unit, the current monitoring parameter of the air source heat pump unit in the working process is obtained, so that when the change of the terminal load demand is determined according to the current monitoring parameter, the target water supply temperature is determined, and the water supply temperature of the air source heat pump unit is adjusted according to the target water supply temperature, wherein the target water supply temperature is determined according to the preset indoor temperature, the current outdoor meteorological parameter and the preset water supply temperature model base. By changing the water supply temperature, the operating efficiency of the air source heat pump unit can be improved.
In one embodiment, the current monitored parameter comprises the current indoor temperature;
and if the difference value between the current indoor temperature and the preset indoor temperature is larger than the preset difference value, determining that the terminal load demand changes according to the current monitoring parameters.
In one embodiment, the current monitoring parameter includes a current indoor temperature, the preset difference is a difference condition that the preset current indoor temperature and the preset indoor temperature should meet, the preset difference can be adjusted according to an actual situation, when the difference between the current indoor temperature and the preset indoor temperature is greater than the preset difference, it can be determined that a terminal load demand changes, and specifically, the preset difference may be a positive number or a negative number. So that it can be determined whether the end demand has changed by the above method.
In one embodiment, the current monitoring parameters include the current outdoor weather parameters;
and if the change of the current outdoor meteorological parameter in a preset time period is larger than a meteorological parameter threshold value, determining that the terminal load requirement is changed according to the current monitoring parameter.
In one embodiment, the current monitoring parameter includes a current outdoor weather parameter, and the weather parameter threshold refers to a condition that a preset variation of the current outdoor weather parameter should be satisfied, and specifically, if the variation of the current outdoor weather parameter is greater than the weather parameter threshold within a set time period, for example, within 30 minutes, the change of the terminal load demand may be determined according to the current monitoring parameter.
In one embodiment, the preset water supply temperature model base comprises a correlation relationship between load demand and water supply temperature; the determining of the target water supply temperature includes: determining the terminal load requirement of the air source heat pump unit based on the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters; and determining the target water supply temperature when the air source heat pump unit meets the tail end load requirement based on the incidence relation between the load requirement and the water supply temperature.
In one embodiment, the preset water supply temperature model base includes a correlation between the load demand and the water supply temperature, and the terminal load demand of the air source heat pump unit can be determined according to the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters, for example, when the outdoor environment temperature ta in the current outdoor meteorological parameters is 0 ℃, the indoor preset temperature tn is 20 ℃, the air source heat pump unit needs to provide 100kw of heating capacity to maintain the indoor temperature at 20 ℃, if tn is 25 ℃, the air source heat pump unit may need to provide 150kw of heating capacity, and when the current indoor temperature changes, the heating capacity of the air source heat pump unit also changes, so that the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters all affect the terminal load demand, and according to the preset indoor temperature, the terminal load demand can be determined according to the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters, The target water supply temperature of the air source heat pump unit when the air source heat pump unit meets the end load requirement can be determined according to the current indoor temperature and the current outdoor meteorological parameters. So that the target supply water temperature can be determined by the above method.
In one embodiment, the preset water supply temperature model base further comprises a correlation between load demand and heat energy difference; the determining the target water supply temperature when the air source heat pump unit meets the terminal load demand based on the incidence relation between the load demand and the water supply temperature comprises the following steps: determining real-time heat energy difference of the air source heat pump unit corresponding to the tail end load demand based on the incidence relation between the load demand and the heat energy difference; and determining a target water supply temperature corresponding to the real-time return water temperature according to the real-time return water temperature and the supply return water temperature difference corresponding to the real-time heat energy difference.
In one embodiment, the heat energy difference refers to a difference value of heat energy at each spatial position in a room in a building, and the return water temperature refers to an allowed air pan outlet water temperature in an air source heat pump unit, and based on a correlation between a load demand and the heat energy difference, a real-time heat energy difference corresponding to the air source heat pump unit and a terminal load demand can be determined, specifically, after the terminal load demand is obtained, a real-time heat energy difference corresponding to the air source heat pump unit and the terminal load demand can be determined according to the correlation between the load demand and the heat energy difference, so as to determine a real-time return water temperature and a supply return water temperature difference corresponding to the real-time heat energy difference, and determine a target supply water temperature corresponding to the real-time return water temperature, wherein the supply return water temperature difference of the air source heat pump unit depends on a temperature difference range in which the air source heat pump unit operates (for example, may be 2.5 ℃ -6 ℃). So that the target supply water temperature can be determined by the above method.
In one embodiment, the preset water supply temperature model base comprises an associated relation among related meteorological parameters, terminal loads, air supply point parameters, return water temperatures and water supply temperatures; the determining of the target water supply temperature includes: acquiring current air supply point parameters and current water return temperature; determining the terminal load requirement of the air source heat pump unit based on the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters; and fitting the current outdoor meteorological parameter, the tail end load requirement, the current air supply point parameter and the current water return temperature based on the meteorological parameter, the tail end load, the air supply point parameter, the water return temperature and the water supply temperature to determine the target water supply temperature.
In one embodiment, the meteorological parameters refer to parameters related to the air state, such as dry-bulb temperature, wet-bulb temperature, dew point temperature, enthalpy value, relative humidity and the like, the air supply point parameters refer to air supply point humiture, enthalpy value and the like, and the target water supply temperature can be determined through the correlation among the meteorological parameters, the terminal load, the air supply point parameters, the return water temperature and the water supply temperature, so that the target water supply temperature can be determined through the method.
In one embodiment, the process of establishing the preset water supply temperature model library comprises the following steps: acquiring a time-by-time outdoor air state parameter of a heating season, and calculating a time-by-time building heating load according to the time-by-time outdoor air state parameter; calculating the heat energy difference of a time-by-time air conditioner based on the determined air supply quantity of the tail end equipment and the time-by-time load of building heating, and obtaining an air supply point parameter according to the time-by-time heat energy difference; determining the return water temperature or the air supply temperature according to the air supply point parameter; and determining the system water supply temperature of the hourly meteorological parameters according to the system water supply and return temperature difference and the return temperature or the air supply temperature.
In one embodiment, the hourly building heating load can be calculated according to the hourly outdoor air state parameters in the heating season, as shown by the formula Q ═ G × Δ h, Q represents heat, G represents air supply quantity, Δ h represents heat energy difference, under the condition that the air supply quantity of the end equipment and the hourly load of the building heating are determined, the heat energy difference processed by the hourly air conditioner can be calculated, thereby obtaining the parameters (temperature, humidity and enthalpy value) of the air supply point, taking the attenuation of the heat exchange efficiency of the tail end air disk into consideration, taking the parameters of the air supply point of which the temperature of the tail end outlet water is slightly higher than the parameters of 0.5-1 ℃ and the air supply point parameters of each time-by-time working condition point, the lowest return water temperature (allowed) of the system under the working condition, namely the air supply temperature plus (0.5-1 ℃), the return water temperature difference of the known system and the return water temperature can be determined, namely the water supply temperature of the system under the working condition (under the outdoor environment temperature) can be determined. Thus, the preset water supply temperature model library can be determined by the method.
In one embodiment, the adjusting the supply water temperature of the air source heat pump unit according to the target supply water temperature includes: if the preset indoor temperature is higher than the current indoor temperature, increasing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is increased is lower than or equal to the target water supply temperature; if the water supply temperature after the preset temperature step length is increased is larger than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature; if the preset indoor temperature is lower than the current indoor temperature, reducing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is reduced is greater than or equal to the target water supply temperature; and if the water supply temperature after the preset temperature step length is reduced is less than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature.
In one embodiment, by comparing the preset indoor temperature with the current indoor temperature, it may be determined whether the current indoor temperature is changed from the preset indoor temperature, and the predetermined temperature step is a condition that a difference between the preset indoor temperature and the preset indoor temperature should be satisfied.
In one embodiment, when the preset indoor temperature is higher than the current indoor temperature, the water supply temperature of the air source heat pump unit can be increased by a preset temperature step, and the water supply temperature after the preset temperature step is increased is less than or equal to the target water supply temperature; if the water supply temperature after the preset temperature step length is increased is greater than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature; if the preset indoor temperature is lower than the current indoor temperature, reducing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is reduced is greater than or equal to the target water supply temperature; and if the water supply temperature after the preset temperature step length is reduced is less than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature.
In one embodiment, referring to fig. 3, a schematic flow chart of a control method of an air source heat pump unit in a specific embodiment is shown:
firstly, the hourly load of the building can be calculated, specifically, the hourly load of the building can be additionally calculated according to an index estimation algorithm (converted into the heat load required to be provided by the air conditioning equipment on each square air conditioning area in the building), the building can be used as a whole, the hourly load of the building can be additionally calculated according to the heating season meteorological parameters of the project location to obtain a group of hourly building heating load data, and then the equipment model selection is carried out according to the hourly building heating load data.
After the time-by-time building heating load is obtained, a formula Q is G and delta h is known, Q represents heat, G represents air supply quantity, and delta h represents heat energy difference, under the condition that the air supply quantity of terminal equipment and the time-by-time building heating load are determined, the heat energy difference of time-by-time air conditioning treatment can be calculated, so that air supply point parameters (temperature, humidity and enthalpy) are obtained, the attenuation of the heat exchange efficiency of a terminal air disc is considered, the terminal outlet water temperature is slightly higher than the air supply point parameters by 0.5-1 ℃, the lowest return water temperature (allowed) of a system under the working condition can be determined by knowing the air supply point parameters of each time-by-time working condition point, namely the air supply temperature plus (0.5-1 ℃), the temperature difference of the supply water of the system is known, and the water return temperature can be determined under the working condition (under the outdoor environment temperature). So that a library of preset water supply temperature models can be determined.
After setting up the indoor temperature value, air source heat pump set begins work, in air source heat pump set working process, can acquire current indoor temperature and current outdoor meteorological parameter in the air source heat pump set working process, and is concrete, can only acquire current indoor temperature, also can only acquire current outdoor meteorological parameter, can also both acquire current indoor temperature, acquires current outdoor meteorological parameter again.
According to the obtained current indoor temperature and the current outdoor meteorological parameters, whether the terminal load demand of the air source heat pump unit changes or not can be judged, and when the terminal load demand is determined to change, the target water supply temperature can be obtained. The terminal requirement refers to a heat load required to be provided by the air source heat pump unit in any building, the target water supply temperature refers to the optimal water supply temperature of the air source heat pump unit under the condition that the terminal load requirement can be met, the preset indoor temperature refers to the preset indoor temperature of the building, the current indoor temperature refers to the indoor temperature measured in real time, the current outdoor meteorological parameter refers to the outdoor meteorological parameter measured in real time, and the preset water supply temperature model base is a temperature model base formed by various time-by-time data.
Finally, the water supply temperature of the air source heat pump unit can be adjusted according to the target water supply temperature, specifically, when the preset indoor temperature is higher than the current indoor temperature, the water supply temperature of the air source heat pump unit can be increased by a preset temperature step length, and the water supply temperature after the preset temperature step length is increased is smaller than or equal to the target water supply temperature; if the water supply temperature after the preset temperature step length is increased is greater than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature; if the preset indoor temperature is lower than the current indoor temperature, reducing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is reduced is greater than or equal to the target water supply temperature; and if the water supply temperature after the preset temperature step length is reduced is less than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature.
It should be understood that although the various steps in the flow charts of fig. 2-3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.
In one embodiment, as shown in fig. 4, there is provided a control device of an air source heat pump unit, including: monitoring parameter acquisition module, target water supply temperature confirm module and temperature regulation module, wherein:
the monitoring parameter acquiring module 402 is configured to acquire a current monitoring parameter of the air source heat pump unit in a working process, where the current monitoring parameter includes at least one of a current indoor temperature and a current outdoor meteorological parameter.
And a target water supply temperature determining module 404, configured to determine a target water supply temperature if it is determined that the end load demand changes according to the current monitoring parameter, where the target water supply temperature is determined according to a preset indoor temperature, a current outdoor meteorological parameter, and a preset water supply temperature model library.
And the temperature adjusting module 406 is used for adjusting the water supply temperature of the air source heat pump unit according to the target water supply temperature.
In one embodiment, the target water supply temperature determining module is configured to determine that a terminal load demand changes according to the current monitoring parameter if a difference between the current indoor temperature and a preset indoor temperature is greater than a preset difference, where the current monitoring parameter includes the current indoor temperature.
In one embodiment, the target water supply temperature determining module is configured to determine that the end load demand has changed according to the current monitoring parameter if the change of the current outdoor weather parameter within a preset time period is greater than a weather parameter threshold, where the current monitoring parameter includes the current outdoor weather parameter.
In one embodiment, the target water supply temperature determining module is configured to determine an end load requirement of the air source heat pump unit based on the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameter; and determining the target water supply temperature when the air source heat pump unit meets the tail end load requirement based on the incidence relation between the load requirement and the water supply temperature.
In one embodiment, the target water supply temperature determining module is configured to determine a real-time thermal energy difference of the air source heat pump unit corresponding to the end load demand based on a correlation between the load demand and the thermal energy difference; and determining a target water supply temperature corresponding to the real-time return water temperature according to the real-time return water temperature and the supply return water temperature difference corresponding to the real-time heat energy difference.
In one embodiment, the target water supply temperature determining module is configured to obtain a current air supply point parameter and a current water return temperature; determining the terminal load requirement of the air source heat pump unit based on the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters; and fitting the current outdoor meteorological parameter, the tail end load demand, the current air supply point parameter and the current water return temperature based on the incidence relation among the meteorological parameter, the tail end load, the air supply point parameter, the water return temperature and the water supply temperature, and determining the target water supply temperature.
In one embodiment, the apparatus further comprises:
the system comprises a preset water supply temperature model base establishing module, a time-by-time building heating load calculating module and a control module, wherein the preset water supply temperature model base establishing module is used for acquiring time-by-time outdoor air state parameters in a heating season and calculating time-by-time building heating loads according to the time-by-time outdoor air state parameters; calculating the heat energy difference of a time-by-time air conditioner based on the determined air supply amount of the tail end equipment and the time-by-time load of building heating, and obtaining an air supply point parameter according to the heat energy difference; determining the return water temperature or the air supply temperature according to the air supply point parameter; and determining the system water supply temperature of the hourly meteorological parameters according to the system water supply and return temperature difference and the return temperature or the air supply temperature.
In one embodiment, the temperature adjustment module is configured to increase the supply water temperature of the air source heat pump unit by a predetermined temperature step if a preset indoor temperature is greater than a current indoor temperature, and the supply water temperature after the predetermined temperature step is increased is less than or equal to the target supply water temperature; if the water supply temperature after the preset temperature step length is increased is larger than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature; if the preset indoor temperature is lower than the current indoor temperature, reducing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is reduced is greater than or equal to the target water supply temperature; and if the water supply temperature after the preset temperature step length is reduced is less than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature.
For specific limitations of the control device of the air source heat pump unit, reference may be made to the above limitations on the control method of the air source heat pump unit, and details are not described here. All or part of each module in the control device of the air source heat pump unit can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the electronic device, or can be stored in a memory in the electronic device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, an electronic device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 5. The electronic device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic equipment comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the electronic equipment is used for storing monitoring parameters in the working process of the air source heat pump unit. The network interface of the electronic device is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to realize a control method of the air source heat pump unit.
In one embodiment, an electronic device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 6. The electronic device comprises a processor, a memory, a communication interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic equipment comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the electronic device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to realize a control method of the air source heat pump unit. The display screen of the electronic equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the electronic equipment, an external keyboard, a touch pad or a mouse and the like.
It will be understood by those skilled in the art that the configurations shown in fig. 5 and 6 are only block diagrams of some configurations relevant to the present disclosure, and do not constitute a limitation on the electronic devices to which the present disclosure may be applied, and a particular electronic device may include more or less components than those shown in the drawings, or may combine certain components, or have a different arrangement of components.
In one embodiment, an electronic device is provided, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the control method of the air source heat pump unit when executing the computer program.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which when executed by a processor implements the steps of the control method of the air source heat pump unit described above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A control method of an air source heat pump unit is characterized by comprising the following steps:
acquiring current monitoring parameters in the working process of the air source heat pump unit, wherein the current monitoring parameters comprise at least one of current indoor temperature and current outdoor meteorological parameters;
if the terminal load demand is determined to be changed according to the current monitoring parameters, determining a target water supply temperature, wherein the target water supply temperature is determined according to a preset indoor temperature, a current indoor temperature, current outdoor meteorological parameters and a preset water supply temperature model base;
and adjusting the water supply temperature of the air source heat pump unit according to the target water supply temperature.
2. The control method according to claim 1, characterized in that:
the current monitored parameter comprises the current indoor temperature;
and if the difference value between the current indoor temperature and the preset indoor temperature is larger than the preset difference value, determining that the terminal load demand changes according to the current monitoring parameters.
3. The control method according to claim 1 or 2, characterized in that:
the current monitoring parameters comprise the current outdoor meteorological parameters;
and if the change of the current outdoor meteorological parameter in a preset time period is larger than a meteorological parameter threshold value, determining that the terminal load requirement is changed according to the current monitoring parameter.
4. The method of claim 1, wherein the preset supply water temperature model base comprises a correlation of load demand and supply water temperature;
the determining of the target water supply temperature includes:
determining the terminal load requirement of the air source heat pump unit based on the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters;
and determining the target water supply temperature when the air source heat pump unit meets the tail end load requirement based on the incidence relation between the load requirement and the water supply temperature.
5. The method of claim 3, wherein the preset feed water temperature model base further comprises a correlation between load demand and thermal energy difference;
the determining the target water supply temperature when the air source heat pump unit meets the terminal load demand based on the incidence relation between the load demand and the water supply temperature comprises the following steps:
determining real-time heat energy difference of the air source heat pump unit corresponding to the tail end load demand based on the incidence relation between the load demand and the heat energy difference;
and determining a target water supply temperature corresponding to the real-time return water temperature according to the real-time return water temperature and the supply return water temperature difference corresponding to the real-time heat energy difference.
6. The method of claim 1, wherein the preset water supply temperature model base comprises an incidence relation of associated meteorological parameters, end loads, air supply point parameters, return water temperatures and water supply temperatures;
the determining of the target water supply temperature includes:
acquiring current air supply point parameters and current water return temperature;
determining the terminal load requirement of the air source heat pump unit based on the preset indoor temperature, the current indoor temperature and the current outdoor meteorological parameters;
and fitting the current outdoor meteorological parameter, the tail end load demand, the current air supply point parameter and the current water return temperature based on the incidence relation among the meteorological parameter, the tail end load, the air supply point parameter, the water return temperature and the water supply temperature, and determining the target water supply temperature.
7. The method of claim 6, wherein the establishing process of the preset water supply temperature model base comprises:
acquiring a time-by-time outdoor air state parameter of a heating season, and calculating a time-by-time building heating load according to the time-by-time outdoor air state parameter;
calculating the time-by-time heat energy difference of the air conditioner based on the determined air supply amount of the tail end equipment and the time-by-time heating load of the building, and obtaining an air supply point parameter according to the time-by-time heat energy difference;
determining the return water temperature or the air supply temperature according to the air supply point parameter;
and determining the system water supply temperature of the hourly meteorological parameters according to the system water supply and return temperature difference and the return temperature or the air supply temperature.
8. The method of claim 1, wherein said adjusting the temperature of the water supply to the air source heat pump unit based on the target water supply temperature comprises:
if the preset indoor temperature is higher than the current indoor temperature, increasing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is increased is lower than or equal to the target water supply temperature; if the water supply temperature after the preset temperature step length is increased is larger than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature;
if the preset indoor temperature is lower than the current indoor temperature, reducing the water supply temperature of the air source heat pump unit by a preset temperature step length, wherein the water supply temperature after the preset temperature step length is reduced is greater than or equal to the target water supply temperature; and if the water supply temperature after the preset temperature step length is reduced is less than the target water supply temperature, directly adjusting the water supply temperature of the air source heat pump unit to the target water supply temperature.
9. The utility model provides an air source heat pump set's controlling means, its characterized in that, the device is including monitoring parameter acquisition module, target water supply temperature confirm module and temperature regulation module:
the monitoring parameter acquisition module is used for acquiring current monitoring parameters in the working process of the air source heat pump unit, and the current monitoring parameters comprise at least one of current indoor temperature and current outdoor meteorological parameters;
the target water supply temperature determining module is used for determining a target water supply temperature if the terminal load demand is determined to be changed according to the current monitoring parameters, and the target water supply temperature is determined according to a preset indoor temperature, a current indoor temperature, current outdoor meteorological parameters and a preset water supply temperature model base;
and the temperature adjusting module is used for adjusting the water supply temperature of the air source heat pump unit according to the target water supply temperature.
10. An electronic device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any of claims 1 to 8 when executing the computer program.
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| CN202111209668.3A CN114001442A (en) | 2021-10-18 | 2021-10-18 | Control method and device of air source heat pump unit and electronic equipment |
| PCT/CN2022/108263 WO2023065755A1 (en) | 2021-10-18 | 2022-07-27 | Control method and apparatus for air source heat pump unit, and electronic device |
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| CN202111209668.3A CN114001442A (en) | 2021-10-18 | 2021-10-18 | Control method and device of air source heat pump unit and electronic equipment |
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| CN115264555A (en) * | 2022-07-15 | 2022-11-01 | 珠海格力电器股份有限公司 | Heating control method and device and heating system |
| WO2023065755A1 (en) * | 2021-10-18 | 2023-04-27 | 珠海格力电器股份有限公司 | Control method and apparatus for air source heat pump unit, and electronic device |
| WO2023071331A1 (en) * | 2021-10-29 | 2023-05-04 | 珠海格力电器股份有限公司 | Control method for air source heat pump unit system and air source heat pump unit system |
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