CN110608476A - Control method, device and equipment of compressor and water multi-connected air conditioning system - Google Patents
Control method, device and equipment of compressor and water multi-connected air conditioning system Download PDFInfo
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- CN110608476A CN110608476A CN201910870794.XA CN201910870794A CN110608476A CN 110608476 A CN110608476 A CN 110608476A CN 201910870794 A CN201910870794 A CN 201910870794A CN 110608476 A CN110608476 A CN 110608476A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 386
- 238000004378 air conditioning Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000008859 change Effects 0.000 claims description 54
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000005057 refrigeration Methods 0.000 claims description 22
- 238000012937 correction Methods 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of air conditioners, in particular to a control method, a control device and control equipment of a compressor and a water multi-connected air conditioning system. The control method of the compressor comprises the following steps: acquiring the total capacity of the air disc in a working state, the actual water outlet temperature and the actual water inlet temperature of the hot water generator; calculating a first frequency of the compressor based on the total capacity of the air disc, the actual water outlet temperature and the water inlet temperature in the working state; controlling the compressor to operate at a first frequency; adjusting the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and controlling the compressor to operate at the second frequency, so that the actual outlet water temperature does not exceed the preset temperature range when the compressor operates at the second frequency; wherein the preset water temperature range comprises a target outlet water temperature.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a control method, a control device and control equipment of a compressor and a water multi-connected air conditioning system.
Background
The traditional multi-split air conditioner generates the refrigeration effect by the heat exchange between low-temperature low-pressure steam generated by refrigerant throttling and indoor hot air. Compared with the traditional multi-split air conditioner, the multi-split air conditioner has the advantages of secondary heat exchange, comfortable operation, no excessive dehumidification, comfortable body feeling and the like.
When the water multi-connected air conditioning system runs at a low load, due to the delay of water heat exchange, the situation that the ambient temperature is lower than the set temperature of the temperature controller, but the actual outlet water temperature of the hot water generator exceeds the set outlet water temperature range of the system can occur.
Therefore, in a low-load operation state, due to the delay of the heat exchange of water, the system control of the unit is easy to show large fluctuation, which is mainly reflected in the frequent start and stop of the compressor, so that the service life of the compressor can be greatly shortened.
Disclosure of Invention
The application aims to provide a control method, a control device and control equipment of a compressor and a water multi-connected air conditioning system, so that the problems that in the related art, in a low-load operation state, due to the delay of heat exchange of water, the system control of a unit shows large fluctuation, and the compressor is frequently started and stopped are solved, and the service life of the compressor can be greatly shortened.
The purpose of the application is realized by the following technical scheme:
in a first aspect, a method for controlling a compressor is applied to a water multi-connected air conditioning system, and the method includes:
acquiring the total capacity of the air disc in a working state, the actual water outlet temperature and the actual water inlet temperature of the hot water generator;
calculating a first frequency of a compressor based on the total capacity of the air disc in the working state, the actual water outlet temperature and the water inlet temperature;
controlling the compressor to operate at a first frequency;
adjusting the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and controlling the compressor to operate at the second frequency, so that when the compressor operates at the second frequency, the actual outlet water temperature does not exceed a preset temperature range; wherein, the preset water temperature range comprises the target outlet water temperature.
Optionally, based on the total capacity of the air disk, the actual outlet water temperature and the inlet water temperature of the working state, calculating a first frequency of the compressor, including:
calculating a correction coefficient of the temperature difference of inlet and outlet water; wherein the water inlet and outlet temperature difference correction coefficient is the product of the water inlet and outlet temperature difference and a preset coefficient, and the water inlet and outlet temperature difference is the difference between the actual water outlet temperature and the water inlet temperature;
calculating a third frequency; the third frequency is the result of the difference between the temperature of the inlet water and the outlet water and the product of the total capacity of the air disc in the working state and the air displacement of the compressor in a preset multiple;
judging whether the third frequency is greater than a preset maximum frequency of the compressor or not;
if so, setting the preset maximum frequency as a first frequency, otherwise, setting the third frequency as the first frequency.
Optionally, the adjusting, based on the target outlet water temperature, the first frequency to obtain a second frequency includes:
calculating the actual water outlet temperature change rate and the water outlet temperature difference; the outlet water temperature difference is the difference value between the target outlet water temperature and the actual outlet water temperature;
and adjusting the first frequency to obtain a second frequency based on the change rate of the water outlet temperature and the water outlet temperature difference.
Optionally, based on the change rate of the temperature of the outlet water and the temperature difference of the outlet water, adjusting the current operating frequency of the compressor to obtain a second frequency, including:
when the change rate of the temperature of the outlet water is smaller than a first preset change rate and the temperature difference of the outlet water is larger than or equal to a preset temperature difference, the current running frequency of the compressor is increased by a first preset frequency to obtain a second frequency;
when the change rate of the temperature of the outlet water is greater than or equal to a first preset change rate and less than or equal to a second preset change rate, and the temperature difference of the outlet water is less than a preset temperature difference, reducing the current running frequency of the compressor by a second preset frequency to obtain a second frequency;
and when the change rate of the temperature of the discharged water is greater than the second preset change rate, reducing the current running frequency of the compressor by a first preset frequency to obtain a second frequency.
Optionally, the method further includes:
every interval of first preset time, obtaining a third frequency based on the latest obtained outlet water temperature adjustment, the target outlet water temperature and the current compressor operation frequency, and controlling the compressor to operate at the third frequency, so that when the compressor operates at the third frequency, the actual outlet water temperature does not exceed the preset water temperature range; wherein, the preset water temperature range comprises the target outlet water temperature.
Optionally, the method further includes:
calculating a fourth frequency of the compressor at every second preset time interval based on the newly acquired total capacity of the air disc in the working state, the newly acquired actual outlet water temperature and the newly acquired inlet water temperature;
judging whether the fourth frequency is greater than the current compressor running frequency;
if so, controlling the compressor to operate at the fourth frequency.
Optionally, the method further includes:
detecting the operation mode of the water multi-connected air-conditioning system; wherein the operation modes include: a cooling mode and a heating mode;
if the operation mode is a refrigeration mode, taking a first preset temperature as the target outlet water temperature;
and if the operation mode is a heating mode, taking a second preset temperature as the target outlet water temperature.
Optionally, the method further includes:
acquiring the temperature of a temperature controller and the actual temperature of an air disc;
if the operation mode is a refrigeration mode, the temperature of the temperature controller is greater than or equal to the actual temperature of the air disc, and the water multi-connected air-conditioning system is controlled to enter a standby state;
if the water multi-connected air-conditioning system is in a standby state, the operation mode is a refrigeration mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is smaller than a first preset value, the water multi-connected air-conditioning system is controlled to enter the standby state; wherein, the first preset value is a negative number;
if the operation mode is a heating mode, the temperature of the temperature controller is less than or equal to the actual temperature of the air disc, and the water multi-connected air-conditioning system is controlled to enter a standby state;
if the water multi-connected air-conditioning system is in a standby state, the operation mode is a heating mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is smaller than a second preset value, the water multi-connected air-conditioning system is controlled to enter the standby state; wherein the second preset value is a positive number.
Optionally, the acquiring the total capacity of the wind disk in the working state includes:
acquiring the number of the wind disks in the working state and the capacity of the wind disks in each working state;
and accumulating the capacity of the wind disks in each working state to obtain the total capacity of the wind disks in the working states.
Optionally, accumulating the capacity of the wind disks in each working state to obtain the total capacity of the wind disks in the working state, includes:
classifying the air disks based on the types of the air disks in each working state;
respectively calculating the total capacity of the wind disks in various working states;
and accumulating the total capacity of the wind disks in various working states to obtain the total capacity of the wind disks in the working states.
Optionally, the acquiring the number of the winddisks in the working state and the capacity of the winddisk in each working state includes:
and acquiring the number of the wind disks in the working state and the capacity of each wind disk in the working state based on the IP address of the wind disks in the working state.
In a second aspect, a control device for a compressor is applied to a water multi-connected air conditioning system, and comprises:
the acquisition module is used for acquiring the total capacity of the air disc in a working state, the actual water outlet temperature and the actual water inlet temperature of the hot water generator;
the calculating module is used for calculating a first frequency of the compressor based on the total capacity of the air disc in the working state, the actual water outlet temperature and the water inlet temperature;
a control module for controlling the compressor to operate at a first frequency;
the adjusting module is used for adjusting the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and controlling the compressor to operate at the second frequency, so that when the compressor operates at the second frequency, the actual outlet water temperature does not exceed a preset temperature range; wherein, the preset water temperature range comprises the target outlet water temperature.
In a third aspect, a control apparatus of a compressor includes:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program;
the processor is configured to invoke and execute the computer program in the memory to perform the method according to the first aspect of the application.
In a fourth aspect, a water multi-connected air conditioning system includes: a compressor, a wind disk, and a hot water generator and, as in the third aspect of the application, a control device for a compressor.
This application adopts above technical scheme, has following beneficial effect:
the application provides a control method of a compressor for a water multi-connected air conditioning system, and when the compressor works, the total capacity of an air disc in a working state, the actual water outlet temperature and the actual water inlet temperature of a hot water generator are firstly obtained; calculating a first frequency of the compressor based on the total capacity of the air disc, the actual water outlet temperature and the water inlet temperature in the working state; controlling the compressor to operate at a first frequency; adjusting the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and controlling the compressor to operate at the second frequency, so that the actual outlet water temperature does not exceed the preset temperature range when the compressor operates at the second frequency; wherein the preset water temperature range comprises a target outlet water temperature. Therefore, when the water multi-connected air conditioning system runs at a low load, the compressor can run according to the first frequency or the second frequency, the outlet water temperature does not exceed the preset temperature range, the first frequency is adjusted based on the target outlet water temperature and the actual outlet water temperature to obtain the second frequency, the compressor is controlled to run at the second frequency, and the outlet water temperature can reach the target outlet water temperature after the compressor runs for a period of time. By the mode, the actual outlet water temperature is always within the set water temperature range of the system, the compressor does not need to be shut down emergently to adjust the actual outlet water temperature, the starting and stopping times of the compressor in the use of the water multi-connected air-conditioning system are reduced, and the service life of the compressor is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of changes in water temperature and compressor power during low-load operation of the water multi-connected air conditioner provided by the present application.
Fig. 2 is a flowchart illustrating a control method of a compressor according to an embodiment of the present application;
fig. 3 is a partial flowchart of a control method of a compressor according to another embodiment of the present disclosure;
fig. 4 is a partial flowchart of a control method of a compressor according to another embodiment of the present disclosure;
fig. 5 is a partial flowchart of a control method of a compressor according to another embodiment of the present disclosure;
fig. 6 is a partial flowchart of a control method of a compressor according to another embodiment of the present disclosure;
fig. 7 is a block diagram of a control apparatus of a compressor according to another embodiment of the present application;
fig. 8 is a block diagram of a control apparatus of a compressor according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
The traditional multi-split air conditioner generates the refrigeration effect by the heat exchange between low-temperature low-pressure steam generated by refrigerant throttling and indoor hot air. Compared with the traditional multi-split air conditioner, the multi-split air conditioner has the advantages of secondary heat exchange, comfortable operation, no excessive dehumidification, comfortable body feeling and the like.
In order to better explain the scheme of the present invention, a water multi-connected air conditioning system in the present application is introduced below, and the water multi-connected air conditioning system in the present application is composed of a host (including an air conditioning outdoor unit, an indoor unit (a hot water generator)), an air panel temperature controller, a host display panel, a floor heating coil, a water distribution and collection device, and shielded communication lines connecting the various parts, and can generate cold/hot water in the hot water generator and send the cold/hot water to the air panel to cool/heat a space used by a user. The core component in the outdoor unit is a compressor. The communication protocol for connecting the indoor unit and the outdoor unit is RS485 industrial bus, and the communication protocols between the indoor unit and the air disc, between the air disc and the air disc temperature controller and between the indoor unit and the host display panel are CAN bus communication. The medium in the pipeline between the indoor unit and the outdoor unit is a refrigerant, and the medium in the pipeline between the indoor unit and the air disc and the floor heating is water. The main functions of the air disc temperature controller are that a user sets temperature, switches on and off, selects modes and the like, and the main functions of the host display panel are debugging and fault display before the unit is started. The main function of the waterway three-way valve is to switch the water flowing to the air disc and the floor heating coil.
Specifically, referring to fig. 1, when the system is in a refrigeration mode, according to a scheme in the related art, when the water multi-connected air conditioner operates at a low load, due to a delay phenomenon in a water path, the ambient temperature is lower than the set temperature of the temperature controller, but the outlet water temperature of the hot water generator exceeds the set water temperature of the system, at this time, the compressor may be stopped, and when the water temperature rises and is higher than the target outlet water temperature, the compressor is started again, that is, the compressor may be frequently started and stopped.
Examples
Referring to fig. 2, fig. 2 is a flowchart illustrating a control method of a compressor according to an embodiment of the present application. Referring to fig. 2, the method for controlling a compressor according to this embodiment includes:
s201, acquiring the total capacity of the air disc in a working state, the actual water outlet temperature and the actual water inlet temperature of the hot water generator;
specifically, the method for acquiring the total capacity of the wind disk in the working state comprises the following steps:
acquiring the number of the wind disks in the working state and the capacity of the wind disks in each working state;
and accumulating the capacity of the wind disks in each working state to obtain the total capacity of the wind disks in the working state.
Further, because a plurality of types of wind disks are often arranged in the same air conditioning system, and the capacities of the various types of wind disks are different, in order to better acquire the total capacity of the wind disks in the working state, the method comprises the following steps: accumulating the capacity of the wind disks in each working state to obtain the total capacity of the wind disks in the working state, and specifically comprising the following steps:
classifying the air disks based on the types of the air disks in each working state;
respectively calculating the total capacity of the wind disks in various working states;
and accumulating the total capacity of the wind disks in various working states to obtain the total capacity of the wind disks in the working states.
Specifically, with reference to the formula: q is n1q1+n2q2+…+nmqm，m∈N+；
Wherein n is1+n2++…+nmThe result is the total number of the winddisks in the working state;
m represents the number of the types of the wind disks in the wind disk in the working state.
n1、n2、…、nmRespectively representing the number of the wind disks in each type of working state after classification;
q1、q2、…、qmrespectively representing the capacity of a single wind disk in each type of wind disk in the working state after classification;
n1q1、n2q2、…、nmqmrespectively representing the total capacity of the wind discs in each type of working state after classification;
sigma q represents the total capacity of the air plate in the working state;
the total capacity of the wind disks in the working state in the formula is the sum of the total capacities of the wind disks in various working states.
Further, the method for acquiring the number of the wind disks in the working state and the capacity of the wind disks in each working state comprises the following steps: and acquiring the number of the wind disks in the working state and the capacity of the wind disks in each working state based on the IP addresses of the wind disks in the working state. Of course, the type of the wind turbine in the operating state may also be acquired based on the IP address of the wind turbine in the operating state.
S202, calculating a first frequency of the compressor based on the total capacity of the air disc, the actual water outlet temperature and the water inlet temperature in the working state;
the first frequency is the running frequency of the compressor under the condition of maintaining the balance between the cold quantity generated by the host and the heat dissipation quantity of the wind disc.
S203, controlling the compressor to run at a first frequency;
s204, adjusting the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and controlling the compressor to operate at the second frequency, so that the actual outlet water temperature does not exceed the preset temperature range when the compressor operates at the second frequency; wherein the preset water temperature range comprises a target outlet water temperature.
The application provides a control method of a compressor for a water multi-connected air conditioning system, and when the compressor works, the total capacity of an air disc in a working state, the actual water outlet temperature and the actual water inlet temperature of a hot water generator are firstly obtained; calculating a first frequency of the compressor based on the total capacity of the air disc, the actual water outlet temperature and the water inlet temperature in the working state; controlling the compressor to operate at a first frequency; adjusting the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and controlling the compressor to operate at the second frequency, so that the actual outlet water temperature does not exceed the preset temperature range when the compressor operates at the second frequency; wherein the preset water temperature range comprises a target outlet water temperature. Therefore, when the water multi-connected air conditioning system runs at a low load, the compressor can run according to the first frequency or the second frequency, the outlet water temperature does not exceed the preset temperature range, the first frequency is adjusted based on the target outlet water temperature and the actual outlet water temperature to obtain the second frequency, the compressor is controlled to run at the second frequency, and the outlet water temperature can reach the target outlet water temperature after the compressor runs for a period of time. By the mode, the actual outlet water temperature is always within the set water temperature range of the system, the compressor does not need to be shut down emergently to adjust the actual outlet water temperature, the starting and stopping times of the compressor in the use of the water multi-connected air-conditioning system are reduced, and the service life of the compressor is prolonged.
Specifically, referring to fig. 3, step S202 is to calculate a first frequency of the compressor based on the total capacity of the wind disk and the actual outlet water temperature in the operating state, and includes:
s301, calculating a correction coefficient of the temperature difference of inlet and outlet water; wherein, the water inlet and outlet temperature difference correction coefficient is the product of the water inlet and outlet temperature difference and the preset coefficient, and the water inlet and outlet temperature difference is the difference between the actual water outlet temperature and the water inlet temperature;
specifically, the preset coefficient may be, but is not limited to 1/5; with reference to the following formula:
t ═ T2-T3I1
Wherein, T2The actual outlet water temperature is obtained; t is3The temperature of the inlet water is set; and delta T is the temperature difference of inlet and outlet water. The difference delta T between the inlet temperature and the outlet temperature is the actual outlet temperature T2Minus the temperature T of the incoming water3The absolute value of the resulting difference.
Wherein the content of the first and second substances,is the correction coefficient of the temperature difference of inlet and outlet water.
S302, calculating a third frequency; the third frequency is the result of the difference between the temperature of inlet and outlet water and the product of the total capacity of the air disc in the working state divided by the air displacement of the compressor in preset times;
specifically, the preset multiple may be, but is not limited to, 4; the predetermined multiple is the product of two empirical coefficients, 0.8 and 10/2, respectively.
Further, refer to the following formula:
wherein f is a third frequency; sigma q is the total capacity of the air plate in the working state; and L is the displacement of the compressor.
The third frequency can be determined by substituting the formula, and it should be noted that in the scheme provided by the application, an empirical coefficient is substituted in the calculation process based on the principle that the cooling capacity generated by the host computer is balanced with the heat dissipation capacity of the wind disk, so that the third frequency f is determined.
S303, judging whether the third frequency is greater than the preset maximum frequency of the compressor;
s304, if yes, setting the preset maximum frequency as a first frequency; otherwise, the third frequency is set to the first frequency.
Through the step S303 and the step S304, the situation that the third frequency cannot be reached in the actual operation of the compressor when the third frequency obtained by the obtaining is greater than the preset maximum frequency of the compressor is avoided. And when the third frequency is greater than the preset maximum frequency of the compressor, setting the preset maximum frequency as the first frequency.
Fig. 4 is a partial flowchart of a control method of a compressor according to another embodiment of the present disclosure; referring to fig. 4, the method for controlling a compressor according to the present embodiment includes:
s401, calculating the actual water outlet temperature change rate and the water outlet temperature difference; wherein the outlet water temperature difference is the difference between the target outlet water temperature and the actual outlet water temperature;
with specific reference to the formula, δ T | T1-T2Wherein δ T is the temperature difference of the outlet water, T1Is the target outlet water temperature; t is2The actual outlet water temperature is obtained; the outlet water temperature difference delta T is the target outlet water temperature T1Minus the actual water outlet temperature T2Absolute value of the obtained result.
The water multi-connected air conditioning system has a refrigeration mode and a heating mode, and in the refrigeration mode, the first preset temperature is used as the target outlet water temperature; and in the heating mode, taking the second preset temperature as the target outlet water temperature. In general, the first preset temperature may be, but is not limited to, 7 ℃ and the second preset temperature may be, but is not limited to, 55 ℃.
S402, adjusting the first frequency to obtain a second frequency based on the change rate of the water outlet temperature and the water outlet temperature difference.
Specifically, fig. 5 is a partial flowchart of a control method for a compressor according to another embodiment of the present disclosure; referring to fig. 5, step S402 includes:
s501, when the change rate of the temperature of the discharged water is smaller than a first preset change rate and the temperature difference of the discharged water is larger than or equal to a preset temperature difference, increasing the first preset frequency by the current running frequency of the compressor to obtain a second frequency;
it should be noted that the first predetermined rate of change may be, but is not limited to, 1 ℃/m1 n; the preset temperature difference is 3 deg.c and the first preset frequency may be, but is not limited to, 2 HZ. So set up, if when the temperature change rate of the effluent water is less than 1 ℃/m1n, the temperature difference of the effluent water is greater than or equal to 3 ℃, the first frequency is increased by 2 HZ.
Specifically, in the refrigeration mode, the target outlet water temperature is 7 ℃, and the actual outlet water temperature can continuously approach 7 ℃ from a temperature higher than 7 ℃ along with the operation of the system. The temperature difference of the outlet water is more than or equal to 3 ℃ and the change rate of the temperature of the outlet water is less than 1 ℃/m1n, which shows that the speed of the actual temperature of the outlet water approaches to 7 ℃ is too slow and the temperature difference of the outlet water is large, and the frequency of the compressor should be increased so that the actual temperature of the outlet water approaches to 7 ℃ more rapidly.
Specifically, in the heating mode, the target outlet water temperature is 55 ℃, and the actual outlet water temperature is close to 55 ℃ continuously from a temperature lower than 55 ℃ along with the operation of the system. The temperature difference of the outlet water is more than or equal to 3 ℃ and the change rate of the temperature of the outlet water is less than 1 ℃/m1n, which shows that the speed of the actual temperature of the outlet water approaches to 55 ℃ is too slow and the temperature difference of the outlet water is large, and the frequency of the compressor should be increased so that the actual temperature of the outlet water approaches to 55 ℃ more rapidly.
S502, when the change rate of the temperature of the discharged water is greater than or equal to a first preset change rate and less than or equal to a second preset change rate, and the temperature difference of the discharged water is less than the preset temperature difference, reducing the current running frequency of the compressor by a second preset frequency to obtain a second frequency;
it should be noted that the second preset frequency may be, but is not limited to, 1 HZ.
Specifically, in the refrigeration mode, the target outlet water temperature is 7 ℃, and the actual outlet water temperature can continuously approach 7 ℃ from a temperature higher than 7 ℃ along with the operation of the system. The outlet water temperature difference is less than 3 ℃ and the outlet water temperature change rate is more than or equal to 1 ℃/m1n, which shows that the speed of the actual outlet water temperature approaches 7 ℃ at this time is too high, and in order to avoid the influence of the adjustment hysteresis on the actual outlet water temperature to be lower than 7 ℃, the frequency of the compressor should be reduced, so that the actual outlet water temperature approaches 7 ℃ more slowly and stably, and therefore, the frequency of the compressor should be reduced by 1 HZ.
Specifically, in the heating mode, the target outlet water temperature is 55 ℃, and the actual outlet water temperature is close to 55 ℃ continuously from a temperature lower than 55 ℃ along with the operation of the system. The temperature difference of the outlet water is less than 3 ℃ and the change rate of the temperature of the outlet water is more than or equal to 1 ℃/m1n, which shows that the speed of the actual temperature of the outlet water approaches to 55 ℃ too fast, and in order to avoid the influence of the adjustment hysteresis on the actual temperature of the outlet water to be higher than 55 ℃, the frequency of the compressor should be reduced, so that the actual temperature of the outlet water approaches to 55 ℃ more slowly and stably, and therefore, the frequency of the compressor should be reduced by 1 HZ.
S503, when the change rate of the temperature of the outlet water is larger than a second preset change rate, reducing the current running frequency of the compressor by a first preset frequency to obtain a second frequency.
It should be noted that the second predetermined rate of change may be, but is not limited to, 2 ℃/m1 n. In any mode, when the change rate of the water outlet temperature degree is greater than 2 ℃/m1n, the change rate of the water outlet temperature degree can be considered to be too large, the delay phenomenon exists in a water path under the condition that the change rate of the water outlet temperature degree is large, the heat exchange delay of water can cause the ambient temperature to be lower than the set temperature of the temperature controller, but the water outlet temperature of the hot water generator exceeds the condition that the set water temperature of the system, the compressor can be stopped at the moment, when the water temperature rises, the compressor is started again, and the oscillation phenomenon is repeated. In order to avoid the situation, in the scheme provided by the application, the mode of reducing the frequency of the compressor is adopted to reduce the change rate of the water temperature, so that the change rate of the water temperature is reduced, the delay of heat exchange of water due to the delay phenomenon of a water path is avoided, and when the actual outlet water temperature reaches the target outlet water temperature, the outlet water temperature is continuously increased and exceeds the preset temperature range. In this application, will reduce the frequency of compressor when a temperature degree change rate is too high to reduce a temperature degree change rate, when making actual leaving water temperature reach target leaving water temperature, receive the delay of the heat transfer of water, influence less.
S403, adjusting the outlet water temperature, the target outlet water temperature and the current compressor running frequency at intervals of a first preset time based on the latest obtained outlet water temperature to obtain a third frequency, and controlling the compressor to run at the third frequency, so that when the compressor runs at the third frequency, the actual outlet water temperature is not in a preset water temperature range; wherein the preset water temperature range comprises a target outlet water temperature.
It should be noted that, in the step S403, the method for obtaining the third frequency based on the latest obtained outlet water temperature adjustment, the target outlet water temperature, the current compressor operation frequency may refer to the methods in the steps S501 to S503, and specifically, the first frequency in the steps S501 to S503 may be replaced by the current compressor operation frequency.
It should be noted that, in step S402, the compressor is finely adjusted in real time to better control the change of the actual outlet water temperature, so as to avoid the situation that the actual outlet water temperature generates large fluctuation and exceeds the set water temperature range of the system.
Further, the scheme provided by the application further comprises:
s404, calculating a fourth frequency of the compressor at intervals of a second preset time based on the newly acquired total capacity of the air disc in the working state, the newly acquired actual outlet water temperature and the newly acquired inlet water temperature;
s405, judging whether the fourth frequency is greater than the current compressor running frequency;
and S406, if the fourth frequency is greater than the current compressor running frequency, controlling the compressor to run at the fourth frequency.
It should be noted that, the first preset time in step S403 may be, but is not limited to, 1 minute; in step S404, the second preset time may be, but is not limited to, 4 minutes; so can be regarded as carrying out the regulation of a cycle every 4 minutes, carry out the fine setting once every 1 minute to guarantee compressor steady operation. In step S405 of the scheme provided by the present application, it is determined whether the fourth frequency is greater than the current compressor operating frequency; in step S406, if the fourth frequency is greater than the current compressor operating frequency, the compressor is controlled to operate at the fourth frequency. Therefore, the actual outlet water temperature can quickly reach the target outlet water temperature.
Fig. 6 is a partial flowchart of a control method of a compressor according to another embodiment of the present application, and referring to fig. 6, the control method of a compressor according to this embodiment includes:
s601, acquiring the temperature of the temperature controller and the actual temperature of the air disc;
it should be noted that the main functions of the temperature controller include setting temperature, turning on and off the computer, selecting a mode, etc., and the temperature of the temperature controller is the temperature set by the relevant person through the temperature controller. The actual temperature of the wind disk can be regarded as the actual environment temperature
S602, if the operation mode is a refrigeration mode and the temperature of the temperature controller is greater than or equal to the actual temperature of the air disc, controlling the water multi-connected air-conditioning system to enter a standby state;
under the refrigeration mode, when the temperature of the temperature controller is greater than or equal to the actual temperature of the air disc, the actual environment temperature is lower than the set temperature, air-conditioning refrigeration is not needed at the moment, and therefore the water multi-connected air-conditioning system is controlled to enter a standby state.
S603, if the water multi-connected air-conditioning system is in a standby state and the operation mode is a refrigeration mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is less than a first preset value, controlling the water multi-connected air-conditioning system to enter the standby state; wherein, the first preset value is a negative number;
it should be noted that the first preset value can be, but is not limited to, -2 ℃. When the water multi-connected air-conditioning system is in a standby state and the operation mode is a refrigeration mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is less than-2 ℃, namely, the set temperature is 2 ℃ lower than the actual environment temperature, the water multi-connected air-conditioning system is controlled to be in a starting state to carry out temperature regulation.
S604, if the operation mode is a heating mode and the temperature of the temperature controller is less than or equal to the actual temperature of the air disc, controlling the water multi-connected air-conditioning system to enter a standby state;
in the heating mode, when the temperature of the temperature controller is less than or equal to the actual temperature of the air disc, the actual environment temperature is higher than the set temperature, and at the moment, the air conditioner is not required to heat, so that the water multi-connected air-conditioning system is controlled to enter a standby state.
S605, if the water multi-connected air-conditioning system is in a standby state and the operation mode is a heating mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is less than a second preset value, controlling the water multi-connected air-conditioning system to enter the standby state; wherein the second preset value is a positive number.
It should be noted that the second preset value may be, but is not limited to, 2 ℃. When the water multi-connected air conditioning system is in a standby state and the operation mode is a refrigeration mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is greater than 2 ℃, namely, when the set temperature is higher than the actual environment temperature by 2 ℃, the water multi-connected air conditioning system is controlled to be in a starting state to carry out temperature regulation.
Referring to fig. 7, fig. 7 is a structural view of a control apparatus of a compressor according to the present invention.
As shown in fig. 7, the present embodiment provides a control apparatus of a compressor, including:
an obtaining module 701, configured to obtain a total capacity of the wind disk in a working state, an actual water outlet temperature and an actual water inlet temperature of the hot water generator;
a calculating module 702, configured to calculate a first frequency of the compressor based on a total capacity of the air disk, an actual outlet water temperature, and an inlet water temperature in the operating state;
a control module 703 for controlling the compressor to operate at a first frequency;
the adjusting module 704 is configured to adjust the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and control the compressor to operate at the second frequency, so that when the compressor operates at the second frequency, the actual outlet water temperature does not exceed the preset temperature range; wherein the preset water temperature range comprises a target outlet water temperature.
Optionally, the calculation module is specifically configured to:
calculating a correction coefficient of the temperature difference of inlet and outlet water; wherein, the water inlet and outlet temperature difference correction coefficient is the product of the water inlet and outlet temperature difference and the preset coefficient, and the water inlet and outlet temperature difference is the difference between the actual water outlet temperature and the water inlet temperature;
calculating a third frequency; the third frequency is the result of the difference between the temperature of inlet and outlet water and the product of the total capacity of the air disc in the working state divided by the air displacement of the compressor in preset times;
judging whether the third frequency is greater than the preset maximum frequency of the compressor or not;
if so, setting the preset maximum frequency as the first frequency, otherwise, setting the third frequency as the first frequency.
Optionally, the adjusting module is specifically configured to:
calculating the actual water outlet temperature change rate and the water outlet temperature difference; wherein the outlet water temperature difference is the difference between the target outlet water temperature and the actual outlet water temperature;
and adjusting the first frequency based on the change rate of the water outlet temperature and the water outlet temperature difference to obtain a second frequency.
Optionally, based on the change rate of the temperature of the discharged water and the temperature difference of the discharged water, the current operation frequency of the compressor is adjusted to obtain a second frequency, which includes:
when the change rate of the temperature of the outlet water is smaller than a first preset change rate and the temperature difference of the outlet water is larger than or equal to a preset temperature difference, the current running frequency of the compressor is increased by a first preset frequency to obtain a second frequency;
when the change rate of the temperature of the discharged water is greater than or equal to a first preset change rate and less than or equal to a second preset change rate, and the temperature difference of the discharged water is less than the preset temperature difference, reducing the current running frequency of the compressor by a second preset frequency to obtain a second frequency;
and when the change rate of the temperature of the discharged water is greater than a second preset change rate, reducing the current running frequency of the compressor by a first preset frequency to obtain a second frequency.
Optionally, the adjusting module is further configured to:
every interval of first preset time, obtaining a third frequency based on the latest obtained outlet water temperature adjustment, the target outlet water temperature and the current compressor running frequency, and controlling the compressor to run at the third frequency, so that when the compressor runs at the third frequency, the actual outlet water temperature is not in a preset water temperature range; wherein the preset water temperature range comprises a target outlet water temperature.
Optionally, the calculation module is further configured to:
calculating a fourth frequency of the compressor at every second preset time interval based on the newly acquired total capacity of the air disc in the working state, the newly acquired actual outlet water temperature and the newly acquired inlet water temperature;
judging whether the fourth frequency is greater than the current compressor running frequency;
if yes, the compressor is controlled to operate at the fourth frequency.
Optionally, the control device for a compressor provided by the present application further includes:
the detection module is used for detecting the operation mode of the water multi-connected air-conditioning system; wherein the operation mode comprises: a cooling mode and a heating mode;
if the operation mode is a refrigeration mode, taking a first preset temperature as a target outlet water temperature;
and if the operation mode is the heating mode, taking the second preset temperature as the target water outlet temperature.
Optionally, the obtaining module is configured to:
acquiring the temperature of a temperature controller and the actual temperature of an air disc;
if the operation mode is a refrigeration mode, the temperature of the temperature controller is greater than or equal to the actual temperature of the air disc, and the water multi-connected air-conditioning system is controlled to enter a standby state;
if the water multi-connected air-conditioning system is in a standby state, the operation mode is a refrigeration mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is smaller than a first preset value, the water multi-connected air-conditioning system is controlled to enter the standby state; wherein, the first preset value is a negative number;
if the operation mode is a heating mode, the temperature of the temperature controller is less than or equal to the actual temperature of the air disc, and the water multi-connected air-conditioning system is controlled to enter a standby state;
if the water multi-connected air-conditioning system is in a standby state, the operation mode is a heating mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is smaller than a second preset value, the water multi-connected air-conditioning system is controlled to enter the standby state; wherein the second preset value is a positive number.
Optionally, the obtaining module is specifically configured to:
acquiring the number of the wind disks in the working state and the capacity of the wind disks in each working state;
and accumulating the capacity of the wind disks in each working state to obtain the total capacity of the wind disks in the working states.
Optionally, the obtaining module is specifically configured to:
classifying the air disks based on the types of the air disks in each working state;
respectively calculating the total capacity of the wind disks in various working states;
and accumulating the total capacity of the wind disks in various working states to obtain the total capacity of the wind disks in the working states.
Optionally, the obtaining module is specifically configured to:
acquiring the number of the wind disks in the working state and the capacity of the wind disks in each working state, wherein the method comprises the following steps:
and acquiring the number of the wind disks in the working state and the capacity of the wind disks in each working state based on the IP addresses of the wind disks in the working state.
Fig. 8 is a block diagram of a control apparatus of a compressor according to another embodiment of the present application. As shown in fig. 8, the present embodiment provides a control apparatus for a compressor, including:
a processor 801, and a memory 802 connected to the processor;
the memory 802 is used to store computer programs;
the processor 801 is configured to call and execute a computer program in the memory to perform a control method of the compressor according to any of the above embodiments.
For a specific implementation of the control apparatus for a compressor provided in the embodiment of the present application, reference may be made to the implementation of the control method for a compressor in any of the above examples, and details are not described here again.
The application also provides a water multi-connected air conditioning system which is characterized by comprising a compressor, an air disc, a hot water generator and control equipment of the compressor according to any embodiment.
For a specific implementation of the control device of the compressor in the water multi-connected air conditioning system provided in the embodiment of the present application, reference may be made to the control device of the compressor in any example above, which is not described herein again.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (14)
1. A control method of a compressor is applied to a water multi-connected air conditioning system, and comprises the following steps:
acquiring the total capacity of the air disc in a working state, the actual water outlet temperature and the actual water inlet temperature of the hot water generator;
calculating a first frequency of a compressor based on the total capacity of the air disc in the working state, the actual water outlet temperature and the water inlet temperature;
controlling the compressor to operate at a first frequency;
adjusting the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and controlling the compressor to operate at the second frequency, so that the actual outlet water temperature does not exceed a preset temperature range when the compressor operates at the second frequency; wherein, the preset water temperature range comprises the target outlet water temperature.
2. The method of claim 1, wherein calculating a first frequency of a compressor based on the total capacity of the winddisk, the actual leaving water temperature, and the entering water temperature for the operating condition comprises:
calculating a correction coefficient of the temperature difference of inlet and outlet water; wherein the water inlet and outlet temperature difference correction coefficient is the product of the water inlet and outlet temperature difference and a preset coefficient, and the water inlet and outlet temperature difference is the difference between the actual water outlet temperature and the water inlet temperature;
calculating a third frequency; the third frequency is the result of the difference between the temperature of the inlet water and the outlet water and the product of the total capacity of the air disc in the working state and the air displacement of the compressor in a preset multiple;
judging whether the third frequency is greater than a preset maximum frequency of the compressor or not;
if so, setting the preset maximum frequency as a first frequency, otherwise, setting the third frequency as the first frequency.
3. The method of claim 1, wherein adjusting the first frequency to a second frequency based on the target leaving water temperature and the actual leaving water temperature comprises:
calculating the actual water outlet temperature change rate and the water outlet temperature difference; the outlet water temperature difference is the difference value between the target outlet water temperature and the actual outlet water temperature;
and adjusting the first frequency to obtain a second frequency based on the change rate of the water outlet temperature and the water outlet temperature difference.
4. The method of claim 3, wherein said adjusting the first frequency based on the rate of change of the leaving water temperature and the leaving water temperature difference to obtain a second frequency comprises:
when the change rate of the temperature of the outlet water is smaller than a first preset change rate and the temperature difference of the outlet water is larger than or equal to a preset temperature difference, the first frequency is increased by a first preset frequency to obtain a second frequency;
when the change rate of the temperature of the outlet water is greater than or equal to a first preset change rate and less than or equal to a second preset change rate, and the temperature difference of the outlet water is less than a preset temperature difference, the first frequency is reduced by a second preset frequency to obtain a second frequency;
and when the change rate of the temperature of the outlet water is greater than the second preset change rate, reducing the first preset frequency by the first frequency to obtain a second frequency.
5. The method of claim 3, further comprising:
every interval of first preset time, obtaining a third frequency based on the latest obtained outlet water temperature adjustment, the target outlet water temperature and the current compressor operation frequency, and controlling the compressor to operate at the third frequency, so that when the compressor operates at the third frequency, the actual outlet water temperature does not exceed the preset water temperature range; wherein, the preset water temperature range comprises the target outlet water temperature.
6. The method of claim 3, further comprising:
calculating a fourth frequency of the compressor at every second preset time interval based on the newly acquired total capacity of the air disc in the working state, the newly acquired actual outlet water temperature and the newly acquired inlet water temperature;
judging whether the fourth frequency is greater than the current compressor running frequency;
and if the fourth frequency is greater than the current compressor running frequency, controlling the compressor to run at the fourth frequency.
7. The method of claim 1, further comprising:
detecting the operation mode of the water multi-connected air-conditioning system; wherein the operation modes include: a cooling mode and a heating mode;
if the operation mode is a refrigeration mode, taking a first preset temperature as the target outlet water temperature;
and if the operation mode is a heating mode, taking a second preset temperature as the target outlet water temperature.
8. The method of claim 7, further comprising:
acquiring the temperature of a temperature controller and the actual temperature of an air disc;
if the operation mode is a refrigeration mode and the temperature of the temperature controller is greater than or equal to the actual temperature of the air disc, controlling the water multi-connected air-conditioning system to enter a standby state;
if the water multi-connected air-conditioning system is in a standby state, the operation mode is a refrigeration mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is smaller than a first preset value, controlling the water multi-connected air-conditioning system to enter the standby state; wherein, the first preset value is a negative number;
if the operation mode is a heating mode and the temperature of the temperature controller is less than or equal to the actual temperature of the air disc, controlling the water multi-connected air-conditioning system to enter a standby state;
if the water multi-connected air-conditioning system is in a standby state and the operation mode is a heating mode, and the difference obtained by subtracting the actual temperature of the air disc from the temperature of the temperature controller is less than a second preset value, controlling the water multi-connected air-conditioning system to enter the standby state; wherein the second preset value is a positive number.
9. The method of claim 1, wherein the obtaining the total capacity of the winddisk of the operating state comprises:
acquiring the number of the wind disks in the working state and the capacity of the wind disks in each working state;
and accumulating the capacity of the wind disks in each working state to obtain the total capacity of the wind disks in the working states.
10. The method of claim 9, wherein accumulating the capacity of the winddisks for each operating state to obtain a total capacity of the winddisks for the operating state comprises:
classifying the air disks based on the types of the air disks in each working state;
respectively calculating the total capacity of the wind disks in various working states;
and accumulating the total capacity of the wind disks in various working states to obtain the total capacity of the wind disks in the working states.
11. The method of claim 9, wherein the obtaining of the number of wind disks in the operating state and the capacity of the wind disks in each operating state comprises:
and acquiring the number of the wind disks in the working state and the capacity of each wind disk in the working state based on the IP address of the wind disks in the working state.
12. The control device of the compressor is characterized by being applied to a water multi-connected air conditioning system and comprising:
the acquisition module is used for acquiring the total capacity of the air disc in a working state, the actual water outlet temperature and the actual water inlet temperature of the hot water generator;
the calculating module is used for calculating a first frequency of the compressor based on the total capacity of the air disc in the working state, the actual water outlet temperature and the water inlet temperature;
a control module for controlling the compressor to operate at a first frequency;
the adjusting module is used for adjusting the first frequency based on the target outlet water temperature and the actual outlet water temperature to obtain a second frequency, and controlling the compressor to operate at the second frequency, so that when the compressor operates at the second frequency, the actual outlet water temperature does not exceed a preset temperature range; wherein, the preset water temperature range comprises the target outlet water temperature.
13. A control apparatus of a compressor, characterized by comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program;
the processor is configured to invoke and execute the computer program in the memory to perform the method of any of claims 1-11.
14. A multiple air conditioning system, comprising: compressor, wind disk, and hot water generator and, a control device for a compressor as claimed in claim 13.
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| CN112484248A (en) * | 2020-11-02 | 2021-03-12 | 珠海格力电器股份有限公司 | Air conditioner device control method and device and air conditioner |
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Application publication date: 20191224 |