CN113932376A - Temperature adjusting unit control method and device and temperature adjusting unit equipment - Google Patents
Temperature adjusting unit control method and device and temperature adjusting unit equipment Download PDFInfo
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- CN113932376A CN113932376A CN202111163494.1A CN202111163494A CN113932376A CN 113932376 A CN113932376 A CN 113932376A CN 202111163494 A CN202111163494 A CN 202111163494A CN 113932376 A CN113932376 A CN 113932376A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The application relates to a temperature regulating unit control method, a temperature regulating unit control device and temperature regulating unit equipment, wherein firstly, an internal unit feedback parameter in the temperature regulating unit is obtained to obtain the load sum of the internal unit, setting the initial compressor running frequency range, obtaining the real-time temperature obtained by detecting the temperature of the target area, obtaining the unit load factor, correcting the initial compressor operation frequency range to obtain the actual compressor operation frequency range, controlling the compressor in the temperature regulating unit to operate in the actual compressor operation frequency range, can adjust the actual capacity output range of the unit in operation, avoid the high-power output capacity of the unit in short time, avoid sudden stop of the unit in short time operation and avoid energy waste caused by capacity interference output, therefore, the output of the unit is mild, the operation is lasting, the work is energy-saving, and the use reliability of the temperature adjusting unit is improved.
Description
Technical Field
The present disclosure relates to the field of temperature adjustment technologies, and in particular, to a method and an apparatus for controlling a temperature adjustment unit, and a temperature adjustment unit device.
Background
Along with the increasing development of economy and the trend of people to good life, the temperature regulation unit brings great convenience to the life of people. The temperature adjusting unit can adjust the temperature, the core working component of the temperature adjusting unit is the compressor, and the temperature adjusting unit can refrigerate in hot summer to reduce the room temperature and can also heat in cold winter to improve the room temperature by the work of the compressor, so that the temperature adjusting unit is very widely applied to life.
In the traditional compressor control method, the operation frequency of the compressor is controlled by the overall target temperature difference of the temperature adjusting unit, and the unit operates by adopting the temperature difference. However, the unit has a heat exchange time difference, so that the capacity of the unit is output in a short time and has interference when the unit is in a partial load state, the power consumption of the unit is increased, and meanwhile, the unit is likely to be unstable in operation and generate more surging, so that the traditional unit operation mode is not energy-saving enough and is unreliable in operation.
Disclosure of Invention
The invention provides a temperature regulating unit control method, a temperature regulating unit control device and temperature regulating unit equipment aiming at the problems that the traditional unit operation mode is not energy-saving enough and the work is unreliable.
A temperature regulation unit control method comprises the following steps:
obtaining an internal machine feedback parameter in a temperature regulating unit, and obtaining an internal machine load sum according to the internal machine feedback parameter;
setting an initial compressor running frequency range according to the internal machine feedback parameters and the load sum of the internal machine;
acquiring real-time temperature obtained by detecting the temperature of a target area, and acquiring a unit load factor according to the real-time temperature; the target area is an action area of the temperature adjusting unit;
correcting the initial compressor operation frequency range according to the unit load factor to obtain an actual compressor operation frequency range;
and controlling the compressor in the temperature regulating unit to operate within the actual compressor operation frequency range.
A temperature conditioning unit control device comprising:
the indoor unit load sum obtaining module is used for obtaining indoor unit feedback parameters in the temperature regulating unit and obtaining indoor unit load sum according to the indoor unit feedback parameters;
the initial compressor running frequency range setting module is used for setting an initial compressor running frequency range according to the internal machine feedback parameters and the internal machine load sum;
the unit load factor acquisition module is used for acquiring real-time temperature obtained by detecting the temperature of a target area and obtaining a unit load factor according to the real-time temperature; the target area is an action area of the temperature adjusting unit;
the correction module is used for correcting the initial compressor running frequency range according to the unit load factor to obtain an actual compressor running frequency range;
and the operation control module is used for controlling the compressor in the temperature regulating unit to operate within the actual compressor operation frequency range.
A temperature adjusting unit device comprises a temperature adjusting unit and the temperature adjusting unit control device.
The temperature regulating unit control method, the temperature regulating unit control device and the temperature regulating unit equipment are characterized in that firstly, an internal unit feedback parameter in the temperature regulating unit is obtained, an internal unit load sum is obtained according to the internal unit feedback parameter, then an initial compressor operation frequency range is set according to the internal unit feedback parameter and the internal unit load sum, a real-time temperature obtained by temperature detection of a target area is obtained, a unit load factor is obtained according to the real-time temperature, the initial compressor operation frequency range is corrected according to the unit load factor to obtain an actual compressor operation frequency range, and a compressor in the temperature regulating unit is controlled to operate within the actual compressor operation frequency range. The method comprises the steps of setting an initial compressor running frequency range by combining set feedback parameters reflecting the configuration conditions of the internal unit of the unit, calculating a unit load factor according to the actual working load of the unit, correcting the running frequency range of the compressor, further adjusting the actual capacity output range in the running of the unit, avoiding the short-time high-power output capacity of the unit, avoiding the sudden stop of the unit running in a short time, and avoiding energy waste caused by capacity interference output, thereby realizing the purposes of mild unit output, lasting unit running, energy saving in working and improving the use reliability of the temperature regulation unit.
In one embodiment, after the controlling the compressor in the temperature adjustment unit to operate within the actual compressor operation frequency range, the method further includes:
acquiring the real-time load sum of the internal machine when the unit operates;
when the real-time internal unit load sum is equal to the internal unit load sum, returning to the real-time temperature obtained by obtaining the temperature detection of the target area, and obtaining a unit load factor according to the real-time temperature;
and when the real-time internal machine load sum is not equal to the internal machine load sum, taking the real-time internal machine load sum as the internal machine load sum, and returning to the setting of the initial compressor operation frequency range according to the internal machine load sum.
In one embodiment, after the controlling the compressor in the temperature adjustment unit to operate within the actual compressor operation frequency range, the method further includes:
acquiring the number of running internal machines in the temperature regulating unit;
and when the number of the running internal machines is zero, controlling the temperature regulating machine set to stop.
In one embodiment, the obtaining of the internal machine feedback parameter in the temperature adjustment unit and the obtaining of the internal machine load sum according to the internal machine feedback parameter include:
obtaining the on-off state of the internal machine to obtain the model number and the number of the running internal machines;
obtaining an internal machine capability value according to the corresponding relation between the internal machine model of the running internal machine and the preset model capability;
and obtaining the load sum of the internal machines according to the internal machine function value and the number of the internal machines in operation.
In one embodiment, the setting of the initial compressor operation frequency range according to the indoor unit feedback parameter and the indoor unit load sum includes:
obtaining the total internal unit load of the unit according to the internal unit feedback parameters;
and setting an initial compressor operation frequency range according to the total internal unit load of the unit, the total internal unit load and the rated frequency range of the temperature regulation unit.
In one embodiment, the obtaining of the total indoor unit load of the unit according to the indoor unit feedback parameters includes:
obtaining an internal machine function value according to the corresponding relation between the internal machine model and a preset model capability;
and obtaining the total internal machine load of the machine set according to the internal machine function value and the number of the internal machines.
In one embodiment, the obtaining a real-time temperature obtained by detecting a temperature of a target area and obtaining a unit load factor according to the real-time temperature includes:
acquiring real-time temperature obtained by detecting the temperature of a target area, and acquiring a target temperature difference according to the real-time temperature and a set temperature;
calculating the temperature change rate of the real-time temperature in a preset time period;
and calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, a preset unit temperature lifting reference value, a preset unit temperature stability reference value and a preset inflection point temperature.
In one embodiment, the step of calculating the unit load factor according to the target temperature difference, the temperature change rate, the preset unit temperature elevation reference value, the preset unit temperature stability reference value and the preset inflection point temperature includes:
under a refrigeration mode, calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, the first unit temperature lifting reference value, the first unit temperature stable reference value and the preset inflection point temperature;
and under the heating mode, calculating according to the target temperature difference, the temperature change rate, the second unit temperature lifting reference value, the second unit temperature stable reference value and the preset inflection point temperature to obtain a unit load factor.
In one embodiment, in the cooling mode, calculating a unit load factor according to the target temperature difference, the temperature change rate, the first unit temperature increase and decrease reference value, the first unit temperature stabilization reference value, and the preset inflection point temperature includes:
in a refrigeration mode, when the target temperature difference is greater than or equal to the preset inflection point temperature, calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, the first unit temperature rise and fall reference value and the preset inflection point temperature;
and when the target temperature difference is smaller than the preset inflection point temperature, calculating to obtain a unit load factor according to the first unit temperature stability reference value and the temperature change rate.
In one embodiment, in the heating mode, calculating a unit load factor according to the target temperature difference, the temperature change rate, the second unit temperature rise and fall reference value, the second unit temperature stability reference value, and the preset inflection point temperature to obtain a unit load factor, including:
in the heating mode, when the target temperature difference is less than or equal to the preset inflection point temperature, calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, the second unit temperature lifting reference value and the preset inflection point temperature;
and when the target temperature difference is greater than the preset inflection point temperature, calculating to obtain a unit load factor according to the second unit temperature stability reference value and the temperature change rate.
Drawings
FIG. 1 is a flow chart of a method for controlling a temperature adjustment assembly in one embodiment;
FIG. 2 is a flow chart of a method for controlling a temperature adjustment assembly in accordance with another embodiment;
FIG. 3 is a flow chart of a method for controlling a temperature adjustment assembly in accordance with yet another embodiment;
FIG. 4 is a flow chart of a method of controlling a temperature adjustment assembly in accordance with yet another embodiment;
FIG. 5 is a flow chart of a temperature adjustment unit control method in another embodiment;
FIG. 6 is a flow chart of a method for controlling a temperature adjustment assembly in accordance with another embodiment;
FIG. 7 is a detailed flow chart of a temperature adjustment unit control method in one embodiment;
FIG. 8 is a detailed flow chart of a temperature adjustment assembly control method in one embodiment;
FIG. 9 is a schematic diagram illustrating a modified operation of a control method for a temperature adjustment unit according to an embodiment;
FIG. 10 is a schematic view of a modified operation of a temperature adjustment unit control method in another embodiment;
fig. 11 is a schematic structural diagram of a water multi-connected unit in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described more fully below by way of examples in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In one embodiment, a temperature regulating unit control method is provided and used for controlling a temperature regulating unit. The temperature adjusting unit has rich types and different corresponding structures. Taking a temperature regulation unit as a water multi-connected unit as an example, the water multi-connected unit mainly comprises an inner unit and an outer unit, wherein the outer unit main body object is an outdoor unit of the unit and internally comprises an intelligent microcomputer chip, an inner and outer unit communication line interface, a variable frequency compressor, a variable frequency water pump and a water inlet and outlet temperature sensing bulb. The indoor unit part comprises a plurality of multi-connected water air discs, a variable frequency fan, a waterway inlet and outlet temperature sensing bulb and an outlet return air temperature sensing bulb are contained, data are integrated and fed back to the outdoor unit through a control main board, the control main board is connected with a line controller, and users can adjust unit operation parameters through the line controller. When the unit operates, user parameters and cold/hot indoor parameters are set according to the wire controller, and the start and stop of the external unit and the working condition of the internal unit are controlled, so that the temperature is controlled to achieve the air conditioning effect. When the temperature adjusting unit control method is executed, the temperature adjusting unit control method can be executed by a controller independent of the temperature adjusting unit, and can also be executed by a controller in the temperature adjusting unit, for example, an intelligent microcomputer chip in an external unit of a water multi-connected unit, so that the hardware cost can be saved. Referring to fig. 1, the method for controlling the temperature adjustment unit includes the following steps:
step S100: and obtaining the indoor unit feedback parameters in the temperature regulating unit, and obtaining the load sum of the indoor unit according to the indoor unit feedback parameters.
The inner machine feedback parameters refer to parameters related to an inner machine in the temperature regulating machine set, and the inner machine feedback parameters can reflect the working capacity value of the inner machine. The indoor unit load sum is used for reflecting the load sum which can be carried by the running indoor unit. The type of the indoor unit feedback parameter is not unique, and may include, for example, the type of the indoor unit being different, and the capacity value of the indoor unit being different. It can be understood that the corresponding relationship between the model of the internal machine and the capability value of the internal machine is stored in advance in the controller executing the temperature regulating unit control method of the present application, and after the model of the internal machine is obtained, the corresponding capability value is matched according to the corresponding relationship between the model of the internal machine and the capability value of the internal machine and is used as a part of representing the total load of the internal machine. In addition, the indoor unit feedback parameters further include the number of the indoor units, specifically, the number of the indoor units put into use is different, and the load sum of the indoor units is also different. It is understood that in other embodiments, the internal machine feedback parameters may be other types of parameters, as long as the implementation is considered by those skilled in the art.
Step S200: and setting an initial compressor running frequency range according to the indoor unit feedback parameters and the indoor unit load sum.
The mode of obtaining the operating frequency range of the initial compressor is not unique, and in the embodiment, after the feedback parameters of the internal machine and the load sum of the internal machine are obtained, the number of the internal machine which needs to be put into use, the working capacity value and the like can be estimated, so that the operating frequency range of the initial compressor is set. It can be understood that the internal machine feedback parameters and the total load of the internal machine can be collected and calculated when the temperature regulation unit is debugged before the temperature regulation unit is started according to the logic, and the set initial compressor running frequency range is used for controlling the initial working state of the compressor in the temperature regulation unit. Or, the initial compressor operating frequency range may also represent the compressor operating frequency range before correction in the operating process of the temperature adjustment unit, and after the unit load factor is subsequently obtained, the previously obtained compressor operating frequency range is used as the initial compressor operating frequency range, and the initial compressor operating frequency range is corrected according to the unit load factor. And according to different indoor unit feedback parameters and different indoor unit load sums, the set initial compressor running frequency ranges are different. It is understood that in other embodiments, the initial compressor operating frequency range may be obtained in other ways, as deemed practicable by those skilled in the art.
Step S300: and acquiring real-time temperature obtained by detecting the temperature of the target area, and acquiring a unit load factor according to the real-time temperature.
Wherein, the target area is the action area of the temperature adjusting unit. For example, when the temperature adjustment unit is a water multi-connected unit, and the internal units of the water multi-connected unit are disposed in different rooms and used for cooling or heating the rooms, the room requiring temperature adjustment is the target area. The real-time temperature is obtained by detecting the temperature in the target area, and can be used as an important parameter for judging the unit load. For example, in the cooling mode, if the real-time temperature of the target area is high, the unit needs high power and high load operation, and if the temperature of the target area is low, the operating power of the unit is low.
Step S400: and correcting the initial compressor operation frequency range according to the unit load factor to obtain the actual compressor operation frequency range.
The unit load factor can reflect the real-time working load requirement of the temperature adjusting unit, the initial compressor operation frequency range is corrected according to the unit load factor, the obtained actual compressor operation frequency range can meet the actual working condition of the unit, and resource waste caused by unit output capacity interference is avoided. For example, when the unit load factor is small, the actual compressor operating frequency range smaller than the initial compressor operating frequency range can be obtained by correcting the initial compressor operating frequency range according to the unit load factor, and energy waste caused by interference output of the temperature adjusting unit capacity can be avoided. When the unit load factor is large, the initial compressor operation frequency range is corrected according to the unit load factor to obtain an actual compressor operation frequency range larger than the initial compressor operation frequency range, so that the work output of the temperature adjusting unit can meet the user requirements better.
Step S500: and controlling the compressor in the temperature regulating unit to operate within the actual compressor operation frequency range.
The actual compressor operating frequency range is used to limit the operating frequency of the compressors in the temperature conditioning pack. The actual compressor operating frequency range may be a range boundary value, such as an upper compressor operating frequency limit or a lower compressor operating frequency limit. And when the actual compressor operation frequency range is the upper limit of the compressor operation frequency, if the actual operation frequency of the compressor is less than or equal to the upper limit of the compressor operation frequency, controlling the compressor to operate at the actual operation frequency, and if the actual operation frequency of the compressor is greater than the upper limit of the compressor operation frequency, controlling the compressor to operate at the upper limit of the compressor operation frequency to avoid exceeding the upper limit of the compressor operation frequency. Similarly, when the actual compressor operation frequency range is the lower limit of the compressor operation frequency, if the actual operation frequency of the compressor is less than or equal to the lower limit of the compressor operation frequency, the compressor is controlled to operate at the lower limit of the compressor operation frequency, and if the actual operation frequency of the compressor is greater than the lower limit of the compressor operation frequency, the compressor is controlled to operate at the actual operation frequency, so that the actual operation frequency of the compressor is prevented from exceeding the lower limit of the compressor operation frequency. It is understood that in other embodiments, the actual compressor operating frequency range may be a range, as long as one skilled in the art realizes.
In an embodiment, referring to fig. 2, after step S500, the method for controlling a temperature adjustment unit further includes steps S610 to S630.
Step S610: and acquiring the real-time internal machine load sum when the machine set operates.
And after the temperature adjusting unit starts to operate, continuously detecting the operation parameters of the unit during operation to obtain the real-time load sum of the internal unit. The manner of obtaining the real-time internal machine load sum is not unique, and for example, the real-time temperature of each target area may be obtained, and the real-time internal machine load sum may be obtained by calculating according to the real-time temperature of each target area. That is to say, after the initial compressor operation frequency range is corrected according to the unit load factor to obtain the actual compressor operation frequency range, the operation state of the temperature adjusting unit can be continuously monitored, and the temperature adjusting unit is conveniently controlled better. And in an expandable manner, the real-time internal machine load sum of the unit during operation can also be detected and acquired according to a preset time interval, and the value of the preset time interval is not unique, and for example, may be 10s, and the like, as long as the implementation is considered by those skilled in the art.
Step S620: when the real-time indoor unit load sum is equal to the indoor unit load sum, the process returns to step S300.
When the real-time load sum of the internal machines is equal to the load sum of the internal machines, considering that the internal machine load of the temperature adjusting unit does not change too much, returning to the step S300, continuously obtaining a load factor of the unit according to the real-time temperature of the target area, and then correcting the operation frequency range of the initial compressor according to the load factor of the unit.
Step S630: and when the real-time internal machine load sum is not equal to the internal machine load sum, taking the real-time internal machine load sum as the internal machine load sum, and returning to the step S200.
When the real-time internal machine load sum is not equal to the internal machine load sum, the fact that the internal machine load of the temperature adjusting unit is not changed is considered, the real-time internal machine load sum is used as the internal machine load sum, the step S200 is returned, the initial compressor operation frequency range is set according to the internal machine feedback parameters and the real-time internal machine load sum, then the unit load factor is obtained according to the real-time temperature of the target area, and the initial compressor operation frequency range is corrected according to the unit load factor.
In an embodiment, referring to fig. 3, after step S500, the temperature adjustment unit control method further includes step S710 and step S720.
Step S710: and acquiring the number of running internal machines in the temperature regulating unit.
After the compressor in the temperature regulating unit is controlled to run within the actual running frequency range of the compressor, the number of the running internal machines in the temperature regulating unit is continuously obtained, and the working state of the unit can be judged according to the number of the running internal machines in the temperature regulating unit.
Step S720: and when the number of the running internal machines is zero, controlling the temperature regulating machine set to stop.
When the number of the running internal machines is zero, the temperature adjusting machine set is controlled to stop in consideration of the fact that the load of the temperature adjusting machine set is 0 at the moment, and the purpose of energy conservation is achieved.
In one embodiment, the indoor unit feedback parameters include an indoor unit model and an indoor unit switch state, please refer to fig. 4, and step S100 includes steps S110 to S130.
Step S110: and obtaining the on-off state of the internal machine to obtain the model number and the quantity of the running internal machines.
Specifically, when the temperature adjustment unit is debugged, the on-off state of the internal unit can be acquired to acquire the model number and the number of the running internal units. The running internal machines are the internal machines of which the compressors work, the models of the internal machines are different, and the parameters of the internal machines are different, so that the temperature adjusting capacities are different. In addition, the number of the running internal machines is different, and the load sum of the internal machines is also different, generally speaking, the more the number of the running internal machines is, the larger the load sum of the internal machines is, the less the number of the running internal machines is, and the smaller the load sum of the internal machines is.
Step S120: and obtaining an internal machine capability value according to the corresponding relation between the internal machine model of the running internal machine and the preset model capability.
And matching an internal machine capacity value corresponding to the internal machine model of the operating internal machine according to the preset model capacity corresponding relation to be used as one of the bases for obtaining the load sum of the internal machine after the preset model capacity corresponding relation is stored in advance.
Step S130: and obtaining the load sum of the internal machines according to the internal machine function value and the number of the internal machines in operation.
After the internal machine function value of each running internal machine is obtained, the load sum of the internal machines can be obtained by combining the number of the running internal machines. For example, when the internal machine capacity values of each of the operating internal machines are equal, the internal machine load sum is the product of the internal machine capacity value of each of the operating internal machines and the number of all of the operating internal machines. When the internal machine capacity values of the internal machines in operation are not equal, the load sum of the internal machines is the sum of the products of the internal machine capacity values and the number of corresponding operations.
In one embodiment, referring to fig. 4, step S200 includes step S210 and step S220.
Step S210: and obtaining the total internal unit load of the unit according to the internal unit feedback parameters.
Specifically, the total internal unit load of the unit is used for representing the load of all internal units in the temperature regulation unit, and is the sum of the internal unit loads of each internal unit in the temperature regulation unit. In this embodiment, the obtained indoor unit feedback parameters are indoor unit feedback parameters of each indoor unit, and can reflect the work capacity value of each indoor unit. The type of the indoor unit feedback parameters is not unique as long as the workload of the indoor unit can be characterized.
Step S220: and setting an initial compressor operation frequency range according to the total internal machine load of the machine set, the total internal machine load and the rated frequency range of the temperature adjusting machine set.
The nominal frequency range of the temperature-regulating unit is known and can be obtained directly from the structure of the temperature-regulating unit. The total internal machine load of the machine set is used for representing the loads of all internal machines in the temperature regulating machine set, and the total internal machine load is used for representing the loads of all internal machines running in the temperature regulating machine set. After the total internal machine load of the unit and the total internal machine load of the unit are obtained, the ratio of the total internal machine load of the unit to the total internal machine load of the unit can be obtained through calculation, and the ratio can guarantee the ratio of the number of the running internal machines. The product of the ratio of the sum of the internal machine loads and the total internal machine load of the machine set and the rated frequency range of the temperature regulation machine set can be used as the initial compressor operation frequency range. Specifically, the total internal unit load of the unit is taken as QaThe total load of the internal machine is QsThe rated frequency range of the temperature regulating unit is the upper limit C of the rated frequency of the temperature regulating unitRated valueThe initial compressor operating frequency range is the upper limit C of the initial compressor operating frequencySetting upFor the purpose of example only,
Qs＝Qfortune 1+QFortune 2+......+QFortune x-1+QFortune x (1)
Qa＝QForehead 1+QForehead 2+......+QForehead N-1+QQuota N (2)
Wherein Q isFortune xIs temperatureRegulating the load, Q, of the operating single internal machine in the unitQuota NThe rated load of each internal machine in the temperature regulating unit is represented by the numerical value X less than or equal to N and the upper limit C of the initial compressor operating frequencySetting upIndoor unit load sum Q obtained by following actual detectionsAnd (6) adjusting.
In one embodiment, referring to fig. 5, the indoor unit feedback parameters include an indoor unit model and an indoor unit number, and step S210 includes step S211 and step S212.
Step S211: and obtaining an internal machine function value according to the corresponding relation between the internal machine model and the preset model capability.
The models of the internal machines are different, and the parameters of the internal machines are different, so that the temperature adjusting capability is different. And after the internal machine model is obtained, matching an internal machine function value corresponding to the internal machine model according to the preset model capability corresponding relation, wherein the internal machine function value is used as one of the basis for obtaining the total internal machine load of the unit.
Step S212: and obtaining the total internal machine load of the machine set according to the internal machine function value and the number of the internal machines.
And after the internal machine capacity value of each internal machine is obtained, the total internal machine load of the machine set can be obtained by combining the number of the internal machines. Generally, the total indoor unit load of the unit is the product of the internal energy value of each indoor unit and the number of all the indoor units.
In one embodiment, referring to fig. 4, step S300 includes steps S310 to S330.
Step S310: and acquiring real-time temperature obtained by detecting the temperature of the target area, and acquiring a target temperature difference according to the real-time temperature and the set temperature.
With real-time temperature TrSetting the temperature to TsFor example, the target temperature difference Δ T ═ Tr-Ts。
Step S320: and calculating the temperature change rate of the real-time temperature within a preset time period.
Obtaining a real-time temperature TrThen, the real-time temperature T is calculatedrRate of temperature change over a preset time period. The specific value of the preset time period is not unique, and can be within 10-30 sAny number. And a predetermined time period of tcFor example, the rate of change of temperature VtThe calculation formula of (2) is as follows:
wherein, Tr'Is the last detection point temperature.
Step S330: and calculating according to the target temperature difference, the temperature change rate, the preset unit temperature lifting reference value, the preset unit temperature stability reference value and the preset inflection point temperature alpha to obtain a unit load factor.
Specifically, the preset unit temperature rise and fall reference value, the preset unit temperature stability reference value and the preset inflection point temperature alpha are values obtained through laboratory measurement. The temperature change rate can represent the actual load of the current target area, the preset inflection point temperature alpha is the optimal sensible temperature under the set temperature of different rooms, and the self-carried parameters of the internal machine are mapped with the set temperature one by one.
In one embodiment, the predetermined unit temperature ramping reference value comprises a first unit temperature ramping reference value VlcAnd a second unit temperature rise and fall reference value VlhThe preset unit temperature stability reference value comprises a first unit temperature stability reference value VαcAnd a temperature stabilization reference value V of the second unitαh. When the load factor of the unit is obtained, the calculation modes are different according to different working modes of the temperature adjusting unit, so that the calculated load factor of the unit is more accurate. Referring to fig. 6, step S330 includes step S331 and step S332.
Step S331: in the refrigeration mode, the reference value V is increased or decreased according to the target temperature difference, the temperature change rate and the temperature of the first unitlcA first unit temperature stabilization reference value VαcAnd calculating the preset inflection point temperature alpha to obtain the unit load factor.
When the temperature adjusting unit is in a refrigeration mode, the reference value V can be increased or decreased according to the target temperature difference, the temperature change rate and the temperature of the first unitlcA first unit temperature stabilization reference value VαcAnd a preset inflection point temperatureAnd alpha is calculated to obtain the load factor of the unit. Wherein the first unit temperature rise-and-fall reference value VlcAnd a first unit temperature stabilization reference value VαcAre both negative values.
Step S332: in the heating mode, the reference value V is increased or decreased according to the target temperature difference, the temperature change rate and the temperature of the second unitlhAnd a temperature stabilization reference value V of the second unitαhAnd calculating the preset inflection point temperature alpha to obtain the unit load factor.
When the temperature adjusting unit is in the heating mode, the reference value V can be increased or decreased according to the target temperature difference, the temperature change rate and the temperature of the second unitlhAnd a temperature stabilization reference value V of the second unitαhAnd calculating the preset inflection point temperature alpha to obtain the unit load factor. Wherein the second unit temperature rise-and-fall reference value VlhAnd a temperature stabilization reference value V of the second unitαhAre all positive values.
In one embodiment, referring to fig. 7, step S331 includes step S3311 and step S3312. When the load factor of the unit is calculated in the same working mode, the calculation mode is different according to different size relations between the target temperature difference and the preset inflection point temperature alpha, and the size relation between the target temperature difference and the preset inflection point temperature can represent whether the optimal body sensing temperature is reached in the target area.
Step S3311: and under the refrigeration mode, when the target temperature difference is greater than or equal to the preset inflection point temperature, calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, the first unit temperature rise and fall reference value and the preset inflection point temperature.
The way of calculating the unit load factor is not exclusive, and the unit load factor calculated in this step is the unit load factor of a single internal machine. In this embodiment, in the cooling mode, when the target temperature difference Δ t is greater than or equal to the preset inflection point temperature α, the unit load factor γ iszThe calculation formula of (2):
wherein, when Vt is more than 0, the unit load factor gammazFeedback is performed as per 2.
Step S3312: and when the target temperature difference is smaller than the preset inflection point temperature, calculating according to the stable reference value of the first unit temperature and the temperature change rate to obtain a unit load factor.
In this embodiment, when the target temperature difference Δ t is less than the preset inflection point temperature α, the unit load factor γzThe calculation formula of (2):
when Vt is greater than 0, unit load factor gammazFeedback is performed as per 2. Gamma for initial running stage of machine setzThe value is very large, the frequency is almost proportional to the capacity, and twice correction can meet most operation conditions, so gammazThe upper limit value of (2).
In one embodiment, step S332 includes step S3321 and step S3322. When the load factor of the unit is calculated in the same working mode, the calculation mode is different according to different size relations between the target temperature difference and the preset inflection point temperature alpha, and the size relation between the target temperature difference and the preset inflection point temperature alpha can represent whether the optimal body sensing temperature is achieved in a target area.
Step S3321: in the heating mode, when the target temperature difference is less than or equal to the preset inflection point temperature, the reference value V is increased or decreased according to the target temperature difference, the temperature change rate and the temperature of the second unitlhAnd calculating the preset inflection point temperature to obtain the unit load factor.
The way of calculating the unit load factor is not exclusive, and the unit load factor calculated in this step is the unit load factor of a single internal machine. In this embodiment, in the heating mode, when the target temperature difference Δ t is greater than or equal to the preset inflection point temperature α, the unit load factor γ iszThe calculation formula of (2):
wherein, when Vt is less than 0, the unit load is due toSub gammazFeedback is performed as per 2.
Step S3322: when the target temperature difference is larger than the preset inflection point temperature, stabilizing the reference value V according to the temperature of the second unitαhAnd calculating the temperature change rate to obtain the unit load factor.
In this embodiment, when the target temperature difference Δ t is greater than the preset inflection point temperature α, the unit load factor γ is determinedzThe calculation formula of (2):
calculating to obtain the unit load factor gamma of a single internal machinezAnd then, the calculation formula of the total load factor of the temperature adjusting unit is as follows:
wherein X is the number of the internal machines running in the temperature regulating unit.
After obtaining the total load factor gamma of the temperature adjusting unit, taking the rated frequency range of the temperature adjusting unit as the rated frequency upper limit C of the temperature adjusting unitRated valueThe initial compressor operating frequency range is the upper limit C of the initial compressor operating frequencySetting upFor example, an upper limit C of the initial compressor operating frequencySetting upThe calculation formula of (2) is as follows:
Csetting up＝γ*CRated value (10)
The output of the compressor can be controlled pertinently and accurately through the control strategy, the maximum matching of the output of the unit and the actual load is realized, and therefore the performance and the market competitiveness of the unit are improved in the aspects of comfort and energy conservation.
For a better understanding of the above embodiments, the following detailed description is given in conjunction with a specific embodiment. In one embodiment, the temperature regulating unit is mainly divided into an inner unit and an outer unit, wherein the outer unit body is an outer unit of the unit and internally comprises an intelligent microcomputer chip, an inner and outer unit communication line interface, a variable frequency compressor, a variable frequency water pump and a water inlet and outlet temperature sensing bulb. The indoor unit part comprises a plurality of water and air coils that ally oneself with more, contains water route import and export temperature sensing package and goes out return air temperature sensing package, and the frequency conversion fan, data are integrated and are fed back the parameter to the off-premises station through the control mainboard, and the control panel is connected with the drive-by-wire ware, the adjustable unit operating parameter of user. When the unit operates, user parameters and cold/hot indoor parameters are set according to the wire controller, and the start and stop of the external unit and the working condition of the internal unit are controlled, so that the temperature is controlled to achieve the air conditioning effect.
The control flow chart of the temperature regulation unit control method is shown in fig. 8: before the unit is started according to logic, the feedback parameters of the internal unit are collected during debugging, the feedback parameters of the internal unit are monitored during starting, the running range of an initial compressor is set through the total load sum of the internal unit after starting, the running frequency range of the compressor of the unit is corrected through continuously checking the load factor fed back by the internal unit of the unit, the output capacity of the unit is controlled to reach an optimal value, the unit judges the load value again after running for one period and checks the load output of the unit again according to control until the load of the unit becomes 0, and the unit normally executes a shutdown step. The indoor unit feedback parameters can comprise indoor unit models, indoor unit quantity, indoor unit switching states, room real-time detection temperature and the like. And the program of the outer machine controller is written with inner machine capacity values corresponding to the inner machine models, and the inner machine capacity values are mapped into the calculation formula of the load factors one by one. The judgment condition in fig. 8 is satisfied, that is, one cycle is satisfied, and the time of one cycle is generally short, and may be 10 seconds, for example.
The temperature adjusting unit control method specifically comprises the following steps:
1. initial setting of compressor frequency range
Real-time monitoring of load sum Q of machine in actual operationsAnd total internal unit load Q of unitaWherein Q issIs the sum of the feedback capacity of the operated internal machine through the external machine controller, QaThe upper limit C of the running frequency of the compressor of the unit is the sum of the feedback capacities of all the internal machines participating in debugging through the external machine controllerSetting upUpper limit value C of compressor frequency of unitRated value；
Operating a single load in an internal machineQFortune xRated load Q of internal machineQuota N；
Qs＝QFortune 1+QFortune 2+......+QFortune x-1+QFortune x；
Qa＝QForehead 1+QForehead 2+......+QForehead N-1+QQuota N(ii) a (wherein X is not more than N)
Note: the upper limit of the running frequency of the unit compressor in actual running follows the actual detected load Q of the internal unitsAnd (6) adjusting. The upper limit value of the frequency of the compressor of the unit is generally 70-100, and the values corresponding to different working conditions are different and are not described herein.
2. Capability output accurate control (calculation of load factor and control strategy)
Cold/hot room temperature drop/rise rate V for detecting indoor unit timet(ii) a (per t)cDetection calculation once, tcCan be 10 to 30s and can be equal to the period judgment time)
Unit temperature rise and fall reference value Vlc(negative value), Vlh(positive value), which is determined in the laboratory;
stable reference values V alpha c (negative value) and V for unit temperatureαh(positive value), which is determined in the laboratory;
"α" is the inflection temperature, and values are obtained from laboratory tests.
Actual temperature T of roomrRoom set temperature value Ts；
Setting a target temperature difference value delta T ═ T in a roomr-Ts；
Temperature ramp rate calculation
Tr' is the temperature of the last detection point
The single load factor of the indoor unit is gammaz(the upper limit value is 2) corresponds to the Z-th indoor unit in actual operation; (1. ltoreq. Z. ltoreq.X)
The calculation method is as follows:
in a refrigeration mode: when the delta t is more than or equal to alpha,
when the delta t < alpha, the alpha is,
note: factor gamma when Vt > 0zFeedback according to 2
In the heating mode: when the delta t is less than or equal to alpha,
when Δ t > α, the signal is,
note: factor gamma when Vt < 0zFeedback according to 2
The total load factor is calculated as:
see fig. 9 and 10 for a schematic diagram of the correction operation.
3. Compressor operating frequency is further set
CSetting up＝γ*CRated value
The output of the compressor can be controlled pertinently and accurately through the control strategy, the maximum matching of the output of the unit and the actual load is realized, and therefore the performance and the market competitiveness of the unit are improved in the aspects of comfort and energy conservation.
4. Self-operation judgment of unit
When the unit operates for one period in the control strategy mentioned in the application, the load value fed back by the internal unit is detected, if the feedback load of the internal unit is 0, the unit is normally stopped, and if the feedback load value of the internal unit is not changed, the unit repeatedly checks the change value of the load factor and revises the operation range of the compressor; if the load of the internal unit is changed, the total load value of the internal unit is recalculated to set the initial operation range of the compressor, and the capacity output of the compressor is corrected according to the recalculated load factor.
Through the control strategy mentioned in the application, the unit is finally in the final target of stable working output, matching of internal and external machine loads, energy conservation and high efficiency in unit operation.
The control method of the temperature regulation unit comprises the steps of firstly obtaining an internal machine feedback parameter in the temperature regulation unit, obtaining an internal machine load sum according to the internal machine feedback parameter, then setting an initial compressor operation frequency range according to the internal machine feedback parameter and the internal machine load sum, obtaining a real-time temperature obtained by carrying out temperature detection on a target area, obtaining a unit load factor according to the real-time temperature, correcting the initial compressor operation frequency range according to the unit load factor to obtain an actual compressor operation frequency range, and controlling a compressor in the temperature regulation unit to operate in the actual compressor operation frequency range. The method comprises the steps of setting an initial compressor running frequency range by combining set feedback parameters reflecting the configuration conditions of the internal unit of the unit, calculating a unit load factor according to the actual working load of the unit, correcting the running frequency range of the compressor, further adjusting the actual capacity output range in the running of the unit, avoiding the short-time high-power output capacity of the unit, avoiding the sudden stop of the unit running in a short time, and avoiding energy waste caused by capacity interference output, thereby realizing the purposes of mild unit output, lasting unit running, energy saving in working and improving the use reliability of the temperature regulation unit.
In one embodiment, a temperature regulation unit control device is provided, which comprises an internal unit load sum obtaining module, an initial compressor operation frequency range setting module, a unit load factor obtaining module, a correction module and an operation control module, wherein the internal unit load sum obtaining module is used for obtaining an internal unit feedback parameter in a temperature regulation unit and obtaining an internal unit load sum according to the internal unit feedback parameter, the initial compressor operation frequency range setting module is used for setting an initial compressor operation frequency range according to the internal unit feedback parameter and the internal unit load sum, the unit load factor obtaining module is used for obtaining a real-time temperature obtained by temperature detection on a target area, the unit load factor is obtained according to the real-time temperature, the target area is an action area of the temperature regulation unit, the correction module is used for correcting the initial compressor operation frequency range according to the unit load factor to obtain an actual compressor operation frequency range, the operation control module is used for controlling the compressor in the temperature adjusting unit to operate within the actual compressor operation frequency range.
In one embodiment, the temperature regulation unit control device further includes a monitoring module, where the monitoring module is configured to obtain a real-time load sum of the internal machines during the unit operation after the operation control module controls the compressors in the temperature regulation unit to operate within an actual compressor operation frequency range, return to a real-time temperature obtained by the unit load factor obtaining module through temperature detection on a target area when the real-time load sum of the internal machines is equal to the internal machine load sum, obtain a unit load factor according to the real-time temperature, use the real-time load sum of the internal machines as the internal machine load sum when the real-time load sum of the internal machines is not equal to the internal machine load sum, and return to an initial compressor operation frequency range setting module to set an initial compressor operation frequency range according to the internal machine load sum.
In one embodiment, the temperature regulation unit control device further comprises an internal machine judgment module, wherein the internal machine judgment module is used for acquiring the number of running internal machines in the temperature regulation unit after the operation control module controls the compressor in the temperature regulation unit to run within the actual compressor operation frequency range, and when the number of running internal machines is zero, the temperature regulation unit is controlled to stop.
The specific content of the temperature adjustment unit control device corresponds to the content in the embodiment of the temperature adjustment unit control method, and is not described herein again.
The temperature regulation unit control device comprises an internal machine feedback parameter acquiring unit, an internal machine load sum acquiring unit, an initial compressor operating frequency range setting unit, a unit load factor acquiring unit, an initial compressor operating frequency range correcting unit, a temperature regulation unit and a temperature regulation unit. The method comprises the steps of setting an initial compressor running frequency range by combining set feedback parameters reflecting the configuration conditions of the internal unit of the unit, calculating a unit load factor according to the actual working load of the unit, correcting the running frequency range of the compressor, further adjusting the actual capacity output range in the running of the unit, avoiding the short-time high-power output capacity of the unit, avoiding the sudden stop of the unit running in a short time, and avoiding energy waste caused by capacity interference output, thereby realizing the purposes of mild unit output, lasting unit running, energy saving in working and improving the use reliability of the temperature regulation unit.
In one embodiment, a temperature regulating unit device is provided, which comprises a temperature regulating unit and the temperature regulating unit control device.
The type of the temperature adjusting unit is not unique, for example, the temperature adjusting unit may be a water multi-connected unit, and please refer to fig. 11, the water multi-connected unit includes an external unit 1 (with a computing logic unit built therein, and a main capacity output device is a compressor), a water distributor 2 of the water system, an indoor air disk machine 3x (with an indoor working condition sensor), a differential pressure bypass balance valve 4 (with a water flow sensor), and a water collector 5 of the water system.
The temperature adjusting unit equipment comprises the steps of firstly obtaining an internal machine feedback parameter in the temperature adjusting unit, obtaining an internal machine load sum according to the internal machine feedback parameter, then setting an initial compressor operation frequency range according to the internal machine feedback parameter and the internal machine load sum, obtaining a real-time temperature obtained by detecting the temperature of a target area, obtaining a unit load factor according to the real-time temperature, correcting the initial compressor operation frequency range according to the unit load factor to obtain an actual compressor operation frequency range, and controlling a compressor in the temperature adjusting unit to operate in the actual compressor operation frequency range. The method comprises the steps of setting an initial compressor running frequency range by combining set feedback parameters reflecting the configuration conditions of the internal unit of the unit, calculating a unit load factor according to the actual working load of the unit, correcting the running frequency range of the compressor, further adjusting the actual capacity output range in the running of the unit, avoiding the short-time high-power output capacity of the unit, avoiding the sudden stop of the unit running in a short time, and avoiding energy waste caused by capacity interference output, thereby realizing the purposes of mild unit output, lasting unit running, energy saving in working and improving the use reliability of the temperature regulation unit.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within 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 invention, 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 inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A temperature adjusting unit control method is characterized by comprising the following steps:
obtaining an internal machine feedback parameter in a temperature regulating unit, and obtaining an internal machine load sum according to the internal machine feedback parameter;
setting an initial compressor running frequency range according to the internal machine feedback parameters and the load sum of the internal machine;
acquiring real-time temperature obtained by detecting the temperature of a target area, and acquiring a unit load factor according to the real-time temperature; the target area is an action area of the temperature adjusting unit;
correcting the initial compressor operation frequency range according to the unit load factor to obtain an actual compressor operation frequency range;
and controlling the compressor in the temperature regulating unit to operate within the actual compressor operation frequency range.
2. The temperature conditioning unit control method according to claim 1, wherein the controlling of the compressors in the temperature conditioning unit further comprises, after operating within the actual compressor operating frequency range:
acquiring the real-time load sum of the internal machine when the unit operates;
when the real-time internal unit load sum is equal to the internal unit load sum, returning to the real-time temperature obtained by obtaining the temperature detection of the target area, and obtaining a unit load factor according to the real-time temperature;
and when the real-time internal machine load sum is not equal to the internal machine load sum, taking the real-time internal machine load sum as the internal machine load sum, and returning to the setting of the initial compressor operation frequency range according to the internal machine load sum.
3. The temperature conditioning unit control method according to claim 1, wherein the controlling of the compressors in the temperature conditioning unit further comprises, after operating within the actual compressor operating frequency range:
acquiring the number of running internal machines in the temperature regulating unit;
and when the number of the running internal machines is zero, controlling the temperature regulating machine set to stop.
4. The method according to claim 1, wherein the indoor unit feedback parameters include an indoor unit model and an indoor unit on-off state, and the obtaining of the indoor unit feedback parameters in the temperature adjustment unit and the obtaining of the indoor unit load sum according to the indoor unit feedback parameters comprises:
obtaining the on-off state of the internal machine to obtain the model number and the number of the running internal machines;
obtaining an internal machine capability value according to the corresponding relation between the internal machine model of the running internal machine and the preset model capability;
and obtaining the load sum of the internal machines according to the internal machine function value and the number of the internal machines in operation.
5. The temperature conditioning unit control method according to claim 1, wherein the setting of an initial compressor operating frequency range according to the indoor unit feedback parameter and the indoor unit load sum comprises:
obtaining the total internal unit load of the unit according to the internal unit feedback parameters;
and setting an initial compressor operation frequency range according to the total internal unit load of the unit, the total internal unit load and the rated frequency range of the temperature regulation unit.
6. The temperature regulating unit control method according to claim 5, wherein the indoor unit feedback parameters include an indoor unit model and an indoor unit number, and the obtaining of the total indoor unit load of the unit according to the indoor unit feedback parameters includes:
obtaining an internal machine function value according to the corresponding relation between the internal machine model and a preset model capability;
and obtaining the total internal machine load of the machine set according to the internal machine function value and the number of the internal machines.
7. The temperature regulating unit control method according to claim 1, wherein the obtaining of the real-time temperature obtained by temperature detection of the target area and the obtaining of the unit load factor according to the real-time temperature comprises:
acquiring real-time temperature obtained by detecting the temperature of a target area, and acquiring a target temperature difference according to the real-time temperature and a set temperature;
calculating the temperature change rate of the real-time temperature in a preset time period;
and calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, a preset unit temperature lifting reference value, a preset unit temperature stability reference value and a preset inflection point temperature.
8. The temperature-controlled unit control method according to claim 7, wherein the preset unit temperature fluctuation reference value includes a first unit temperature fluctuation reference value and a second unit temperature fluctuation reference value, the preset unit temperature stability reference value includes a first unit temperature stability reference value and a second unit temperature stability reference value, and the unit load factor is calculated according to the target temperature difference, the temperature change rate, the preset unit temperature fluctuation reference value, the preset unit temperature stability reference value and a preset inflection point temperature, and the method includes:
under a refrigeration mode, calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, the first unit temperature lifting reference value, the first unit temperature stable reference value and the preset inflection point temperature;
and under the heating mode, calculating according to the target temperature difference, the temperature change rate, the second unit temperature lifting reference value, the second unit temperature stable reference value and the preset inflection point temperature to obtain a unit load factor.
9. The method as claimed in claim 8, wherein in the cooling mode, calculating a unit load factor according to the target temperature difference, the temperature change rate, the first unit temperature rise and fall reference value, the first unit temperature stabilization reference value and the preset inflection point temperature includes:
in a refrigeration mode, when the target temperature difference is greater than or equal to the preset inflection point temperature, calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, the first unit temperature rise and fall reference value and the preset inflection point temperature;
and when the target temperature difference is smaller than the preset inflection point temperature, calculating to obtain a unit load factor according to the first unit temperature stability reference value and the temperature change rate.
10. The temperature regulating unit control method according to claim 8, wherein in the heating mode, calculating a unit load factor according to the target temperature difference, the temperature change rate, the second unit temperature rise and fall reference value, the second unit temperature stabilization reference value and the preset inflection point temperature includes:
in the heating mode, when the target temperature difference is less than or equal to the preset inflection point temperature, calculating to obtain a unit load factor according to the target temperature difference, the temperature change rate, the second unit temperature lifting reference value and the preset inflection point temperature;
and when the target temperature difference is greater than the preset inflection point temperature, calculating to obtain a unit load factor according to the second unit temperature stability reference value and the temperature change rate.
11. A temperature conditioning unit control device, comprising:
the indoor unit load sum obtaining module is used for obtaining indoor unit feedback parameters in the temperature regulating unit and obtaining indoor unit load sum according to the indoor unit feedback parameters;
the initial compressor running frequency range setting module is used for setting an initial compressor running frequency range according to the internal machine feedback parameters and the internal machine load sum;
the unit load factor acquisition module is used for acquiring real-time temperature obtained by detecting the temperature of a target area and obtaining a unit load factor according to the real-time temperature; the target area is an action area of the temperature adjusting unit;
the correction module is used for correcting the initial compressor running frequency range according to the unit load factor to obtain an actual compressor running frequency range;
and the operation control module is used for controlling the compressor in the temperature regulating unit to operate within the actual compressor operation frequency range.
12. A temperature conditioning pack arrangement comprising a temperature conditioning pack and a temperature conditioning pack control apparatus as claimed in claim 11.
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| CN111207481A (en) * | 2020-01-14 | 2020-05-29 | 珠海格力电器股份有限公司 | Water multi-connected system compressor frequency-up-down control method, storage medium and air conditioner |
| CN112032936A (en) * | 2020-08-24 | 2020-12-04 | Tcl空调器(中山)有限公司 | Frequency control method, storage medium and air conditioning system |
| CN112432329A (en) * | 2020-11-25 | 2021-03-02 | 珠海格力电器股份有限公司 | Control method and device of air conditioning unit and air conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115425907A (en) * | 2022-09-15 | 2022-12-02 | 大庆恒驰电气有限公司 | Intelligent frequency converter |
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