CN117346301A - Control method, device and equipment for adding and subtracting machine of cooling machine and storage medium - Google Patents
Control method, device and equipment for adding and subtracting machine of cooling machine and storage medium Download PDFInfo
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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
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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
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- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
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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
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Abstract
The application relates to a control method, a device, equipment and a storage medium of a cold machine adding and subtracting machine, wherein the control method of the cold machine adding and subtracting machine comprises the following steps: after the addition and subtraction of the cold machine is triggered, acquiring the indoor temperature; if the indoor temperature meets a first preset condition or is abnormal, acquiring a cold machine current load rate; and if the cold machine current load rate meets a second preset condition, controlling the cold machine to be added or subtracted according to the current cold quantity of the cold machine system and the predicted cold quantity within a future preset operation time. The control of the cold machine addition and subtraction machine can be realized through simple configuration of limiting parameters, and the stability of a cold machine system can be improved when the cold machine performs the addition and subtraction machine control.
Description
Technical Field
The application relates to the technical field of heating ventilation and air conditioning, in particular to a control method, a device, equipment and a storage medium of a cooling machine adding and subtracting machine.
Background
The automatic adding and subtracting machine feedback control logic of the cold machine is a control method widely applied to cold machine systems. The method automatically adjusts the addition and subtraction operation of the cold machine through monitoring and analyzing the running state of the cold machine so as to realize stable running and energy consumption optimization of a cold machine system. The system can automatically adjust the running mode and the load of the cooling machine according to different working condition requirements so as to meet the cooling requirement of the system. The application range of the automatic addition and subtraction feedback control logic of the chiller is wide, and intelligent operation management and energy consumption optimization can be realized in various chiller systems. However, the control method of the conventional chiller-adding/subtracting machine may make the stability of the chiller system insufficient.
Therefore, the inventor provides a control method, a device, equipment and a storage medium of a cold machine adding and subtracting machine.
Disclosure of Invention
(1) Technical problem to be solved
The embodiment of the application provides a control method, a device, equipment and a storage medium for a cold machine adding and subtracting machine, which aims to solve the technical problems that: the control method of the common cold machine adding and subtracting machine can lead to insufficient stability of a cold machine system.
(2) Technical proposal
In a first aspect, an embodiment of the present application provides a control method for a chiller add-subtract machine, including:
after the addition and subtraction of the cold machine is triggered, acquiring the indoor temperature;
if the indoor temperature meets a first preset condition or is abnormal, acquiring a cold machine current load rate;
and if the cold machine current load rate meets a second preset condition, controlling the cold machine to be added or subtracted according to the current cold quantity of the cold machine system and the predicted cold quantity within a future preset operation time.
In one embodiment, after the trigger of the chiller adder-subtractor, acquiring the indoor temperature includes:
after the cold machine adding and subtracting machine is triggered, determining the triggered time length of the cold machine adding and subtracting machine;
if the triggered time length is longer than the preset protection time length, the indoor temperature is obtained, otherwise, the current starting strategy of the refrigerator is maintained.
In one embodiment, the first preset condition is that the indoor temperature is less than or equal to a first preset temperature threshold and greater than or equal to a second preset temperature threshold, wherein the first preset temperature threshold is greater than the second preset temperature threshold.
In one embodiment, the second preset condition is that the cold machine current load rate is greater than a first preset load rate threshold or less than a second preset load rate threshold, wherein the first preset load rate threshold is greater than the second preset load rate threshold.
In one embodiment, if the cold machine current load rate meets a second preset condition, controlling the cold machine to add or subtract according to the current cold quantity of the cold machine system and the predicted cold quantity within a future preset operation time, including:
if the current load rate of the cold machine is larger than a first preset load rate threshold value, the current cold quantity of the cold machine system and the predicted cold quantity in the future preset operation time period are obtained;
if the predicted cooling capacity is larger than the product of the current cooling capacity and a preset high load factor, controlling the cooling machine to add according to preset rules or configuration information, otherwise, maintaining the current starting strategy of the cooling machine;
and if the predicted cooling capacity is not obtained, controlling the cooling machine to add according to a preset rule or configuration information.
In one embodiment, if the cold machine current load rate meets the second preset condition, controlling the cold machine to add or subtract according to the current cold quantity of the cold machine system and the predicted cold quantity within the future preset operation time, and further including:
if the current load rate of the cold machine is smaller than a second preset load rate threshold value, the current cold quantity of the cold machine system and the predicted cold quantity in the future preset operation time period are obtained;
if the predicted cooling capacity is larger than the product of the current cooling capacity and a preset low load factor, maintaining the current starting strategy of the refrigerator, otherwise, controlling the refrigerator to reduce the refrigerator according to a preset rule or configuration information;
and if the predicted cooling capacity is not obtained, controlling the cooling machine to reduce the cooling machine according to a preset rule or configuration information.
In one embodiment, the control method of the cold machine adding and subtracting machine further comprises:
if the indoor temperature is greater than a first preset temperature threshold and the cold machine current load rate is greater than a first preset load rate threshold, controlling the cold machine to add according to preset rules or configuration information;
if the indoor temperature is greater than a first preset temperature threshold and the cold machine current load rate is less than or equal to the first preset load rate threshold, controlling the cold machine water supply temperature to be reduced by a preset value;
if the indoor temperature is smaller than a second preset temperature threshold value and the cold machine current load rate is smaller than a second preset load rate threshold value, controlling the cold machine to perform machine reduction according to preset rules or configuration information;
and if the indoor temperature is smaller than the second preset temperature threshold and the cold machine current load rate is larger than or equal to the second preset load rate threshold, controlling the cold machine water supply temperature to increase by a preset value.
In a second aspect, an embodiment of the present application provides a control device for a chiller add-subtract machine, including:
the temperature acquisition module is used for acquiring indoor temperature after the trigger of the cold machine adding and subtracting machine;
the load factor acquisition module is used for acquiring the cold machine current load factor if the indoor temperature meets a first preset condition or is abnormal;
and the addition and subtraction control module is used for controlling the cold machine to add or subtract according to the current cold quantity of the cold machine system and the predicted cold quantity within the future preset operation time length if the cold machine current load rate meets the second preset condition.
In a third aspect, an embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements a control method for a chiller addition/subtraction machine as described above when executing the computer program.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program, where the computer program when executed by a processor implements a control method of a cold machine add-drop machine as described above.
(3) Advantageous effects
The technical scheme of the application has the following advantages:
according to the control method for the cold machine addition and subtraction machine provided by the first aspect of the application, the indoor temperature is obtained after the cold machine addition and subtraction machine is triggered, the cold machine current load rate is obtained if the indoor temperature meets the first preset condition or is obtained abnormally, and the cold machine is controlled to be added or subtracted according to the current cold quantity of the cold machine system and the predicted cold quantity in the future preset operation time length if the cold machine current load rate meets the second preset condition, so that the control of the cold machine addition and subtraction machine can be realized through simple configuration limiting parameters, and the stability of a cold machine system can be improved when the cold machine is subjected to addition and subtraction machine control.
It will be appreciated that the advantages of the second, third and fourth aspects may be found in the relevant description of the first aspect and are not repeated here.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a control method of a chiller-plus-minus machine provided by the application;
fig. 2 is a schematic structural diagram of a control device of a cold machine adding and subtracting machine provided by the application;
fig. 3 is a schematic structural diagram of an electronic device provided in the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In addition, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise. "plurality" means "two or more".
The automatic adding and subtracting machine feedback control logic of the cold machine is a control method widely applied to cold machine systems. The purpose of the machine is to prevent the cooling system from responding too long when the heat load is increased in the future, so that the indoor temperature is kept too high. When the load rate is higher, the system needs to be switched from a high-efficiency area to a working condition with lower COP of the chiller, and the energy conservation of the system is sacrificed to prevent the risk of indoor overheating. Due to the different field restrictions, each time the setting and debugging program needs to be set and debugged by a professional, and the dynamic adjustment according to the user requirements is not friendly. When installing chillers on site, the machine types with different rated cold capacities are selected, namely a large chiller and a small chiller, so that the number and types of the addition and subtraction machines are required to be limited and regulated in addition and subtraction machine logic, frequent switching of the system chillers is avoided, and a combination with higher COP is selected as much as possible. If the logic is too simple, the above requirements cannot be met, and if the logic design involves too complex parameters, the stable operation of the system is not facilitated.
In view of the above problems, the embodiments of the present application provide a control method for adding and subtracting a cold machine, where after the cold machine adding and subtracting is triggered, the indoor temperature is obtained, if the indoor temperature meets a first preset condition or the indoor temperature is obtained abnormally, the cold machine current load rate is obtained, if the cold machine current load rate meets a second preset condition, the cold machine is controlled to add or subtract the cold machine according to the current cold quantity of the cold machine system and the predicted cold quantity within a future preset operation time period, and the control of the cold machine adding and subtracting can be achieved by simply configuring a limiting parameter, so that the stability of the cold machine system can be improved when the cold machine is subjected to adding and subtracting control.
The detailed description of the present application is further described in detail below with reference to the drawings and examples. The following examples are illustrative of the present application, but are not intended to limit the scope of the present application.
As shown in fig. 1, the control method for the chiller-adding machine provided in this embodiment includes:
s100, after the cold machine adding and subtracting machine is triggered, acquiring the indoor temperature.
In one embodiment, after the trigger of the chiller plus or minus machine, acquiring the indoor temperature includes: after the cold machine adding and subtracting machine is triggered, determining the triggered time length of the cold machine adding and subtracting machine; if the triggered time length is longer than the preset protection time length, the indoor temperature is obtained, otherwise, the current starting strategy of the refrigerator is maintained.
In applications, the chiller type may include a centrifuge, screw machine, air source/water source heat pump, and other common types of cold and heat source types. The preset protection duration is a protection function for preventing oscillation caused by frequent system adjustment, and is usually set for water temperature, and the cooling machine is combined to adjust the protection duration. In order to avoid the loss of equipment and the waste of energy caused by frequent start-stop of the refrigerator due to occasional data anomalies, delay judgment is generally set, namely, the refrigerator is controlled to carry out addition and subtraction after the triggered time of the addition and subtraction of the refrigerator is longer than the preset protection time. The trigger action of the cold machine adding and subtracting machine can be that the indoor temperature is obtained to exceed or be lower than the set temperature.
And S200, if the indoor temperature meets a first preset condition or is abnormal, acquiring the cold machine current load rate.
In one embodiment, the first preset condition is that the indoor temperature is less than or equal to a first preset temperature threshold and greater than or equal to a second preset temperature threshold, wherein the first preset temperature threshold is greater than the second preset temperature threshold.
In an application, the first preset temperature threshold may be an upper limit value of the indoor temperature, and the second preset temperature threshold may be a lower limit value of the indoor temperature. The refrigerator automatically adjusts the water supply temperature or switches the operation/closing state according to the set upper and lower limits of the indoor temperature and the actual indoor temperature so as to maintain the indoor temperature within the set range. If the indoor temperature is smaller than or equal to the first preset temperature threshold value and larger than or equal to the second preset temperature threshold value, the indoor temperature is normal. If the indoor temperature is normal or the indoor temperature is obtained abnormally, whether the cooling machine needs to be subjected to addition and subtraction is further judged through the current load rate of the cooling machine.
And S300, if the cold machine current load rate meets a second preset condition, controlling the cold machine to be added or subtracted according to the current cold quantity of the cold machine system and the predicted cold quantity within a future preset operation time.
In one embodiment, the second preset condition is that the cold machine current load rate is greater than a first preset load rate threshold or less than a second preset load rate threshold, wherein the first preset load rate threshold is greater than the second preset load rate threshold.
In one embodiment, if the cold machine current load rate meets the second preset condition, controlling the cold machine to add or subtract according to the current cold capacity of the cold machine system and the predicted cold capacity within the future preset operation time, including: if the current load rate of the cold machine is larger than a first preset load rate threshold value, the current cold quantity of the cold machine system and the predicted cold quantity in the future preset operation time period are obtained; if the predicted cooling capacity is larger than the product of the current cooling capacity and a preset high load factor, controlling the cooling machine to add according to preset rules or configuration information, otherwise, maintaining the current starting strategy of the cooling machine; and if the predicted cooling capacity is not obtained, controlling the cooling machine to add according to a preset rule or configuration information.
In one embodiment, if the cold machine current load rate meets the second preset condition, controlling the cold machine to add or subtract according to the current cold capacity of the cold machine system and the predicted cold capacity within the future preset operation time, and further including: if the current load rate of the cold machine is smaller than a second preset load rate threshold value, the current cold quantity of the cold machine system and the predicted cold quantity in the future preset operation time period are obtained; if the predicted cooling capacity is larger than the product of the current cooling capacity and a preset low load factor, maintaining the current starting strategy of the refrigerator, otherwise, controlling the refrigerator to reduce the refrigerator according to a preset rule or configuration information; and if the predicted cooling capacity is not obtained, controlling the cooling machine to reduce the cooling machine according to a preset rule or configuration information.
In application, the cold machine current load rate IPLR is the ratio of the actual current to the rated current of the cold machine, and the AO point of the information is arranged on the cold machine and can be acquired. The first preset load factor threshold may be an upper limit threshold of a cold machine current load factor, and the second preset load factor threshold may be a lower limit threshold of the cold machine current load factor. The upper and lower threshold values are typically thresholds for judging whether to add or subtract the machine according to the field condition and the characteristics of the cold machine, when the cold machine current load rate exceeds the upper threshold value, the cold machine can be considered to add the machine, when the cold machine current load rate is lower than the lower threshold value, for example, when the cold machine current load rate is higher than 90%, the machine needs to be considered to add the machine, and when the cold machine current load rate is lower than 50%, the machine needs to be considered to subtract the machine. The control output content of the adding and subtracting machine comprises information such as the number of cold machines, the type of the cold machines, the water supply temperature and the like.
The predicted cooling capacity Q (i) may be historical data of project operation and weather forecast, and the cooling capacity demand of the system may be predicted in advance. There are many relatively sophisticated prediction methods in the current commercial and civil technology. The preset high load factor Kh is a coefficient function which is specified by the adding machine and corresponds to the upper limit threshold value of the cold machine current load factor, kh can be fitted by analysis of project actual data, and a default function kh=1/IPLR can be used. Generally, the cold load rate and the current load rate form a 3-degree function relation, and as the load rate increases, the COP of the system is in an ascending trend, namely the IPLR ascending trend is lower than the load rate ascending trend, so that the default function is relatively conservative. The preset low load factor Kl is a factor function which is appointed by the subtracting machine and corresponds to a lower limit threshold value of the cold machine current load factor. Assuming that the current cooling power load rate IPLR is 95%, the current cooling power of the cooling machine system is calculated to be 8000kW, and the predicted cooling power Q (i) in the future 1 hour is about 10000kW, 8000 x kh=8000/0.95=8421 < Q (i), and therefore the cooling machine needs to be controlled to perform the addition. And judging the same by subtracting the machine.
The preset rules can be adjusted according to specific requirements to realize that the strategy meets the actual use working condition of the site, for example, according to the limit of the cold quantity proportion of the addition and subtraction machine, the rated cold quantity after adding the machine is supposed to be increased by more than 20% of the original rated cold quantity, 3 large cold machines exist, each rated cold quantity is 5000, and 1 small cold machine is rated cold quantity 1500, when the current starting strategy of the cold machine is 2 large, and when the machine needs to be added, the rated cold quantity of the addition machine needs to be more than 10000 x 20% = 2000, then the starting strategy of 2 large and 1 small is directly skipped, and 3 large machines are selected. The addition and subtraction control can be performed according to project configuration information limitation, for example, the project cannot support simultaneous opening of big and small machines, the project equipment is configured into 5 big chillers, each rated cooling capacity is 5000, and 2 small chillers, each rated cooling capacity is 1500, and the addition sequence is as follows: 1 small-2 small-1 large-2 large-3 large-4 large-5 large, and the reverse is the same for the machine reduction. By layer-by-layer replacement, the problem that the stability of the system is insufficient due to high data requirements of load calculation is avoided. The configuration information can be used as a user opening setting parameter and set a default value, and comprises water temperature setting protection time, cold machine combination adjustment protection time, cold machine current load factor upper limit, cold machine current load factor lower limit, high load factor, low load factor, machine cooling quantity proportion limitation addition and subtraction, support of simultaneous opening of big and small machines, maximum opening number of small machines, water supply temperature setting range and the like.
In one embodiment, the control method of the cold machine adding and subtracting machine further comprises: if the indoor temperature is greater than a first preset temperature threshold and the cold machine current load rate is greater than a first preset load rate threshold, controlling the cold machine to add according to preset rules or configuration information; if the indoor temperature is greater than a first preset temperature threshold and the cold machine current load rate is less than or equal to the first preset load rate threshold, controlling the cold machine water supply temperature to be reduced by a preset value; if the indoor temperature is smaller than a second preset temperature threshold value and the cold machine current load rate is smaller than a second preset load rate threshold value, controlling the cold machine to perform machine reduction according to preset rules or configuration information; and if the indoor temperature is smaller than the second preset temperature threshold and the cold machine current load rate is larger than or equal to the second preset load rate threshold, controlling the cold machine water supply temperature to increase by a preset value.
In application, if the indoor temperature is greater than the first preset temperature threshold, it indicates that the indoor temperature is too high, so that the controllable refrigerator adds the machine or reduces the water supply temperature by a preset value, and if the indoor temperature is less than the second preset temperature threshold, it indicates that the indoor temperature is too low, so that the controllable refrigerator subtracts the machine or increases the water supply temperature by a preset value, which may be 1 ℃.
The control method of the cold machine adding and subtracting machine is suitable for various cold machine systems, such as an air conditioning system, a refrigerating system and the like. Meanwhile, the control method can further improve the performance and efficiency of the chiller system by combining with other control methods. The control method utilizes a heating ventilation theory, adopts feedforward parameters of cold quantity prediction to be matched with feedback control, can realize the control of the cold machine adding and subtracting machine through simple configuration limiting parameters, can improve the stability of a cold machine system when the cold machine carries out the adding and subtracting machine control, interprets common user demands as a program control threshold value, is set as a user configurable parameter, and can be conveniently and dynamically adjusted according to the user demands.
As shown in fig. 2, the present embodiment provides a control device for a cold machine adding/subtracting machine, where the control device 200 for a cold machine adding/subtracting machine includes:
the temperature acquisition module 201 is used for acquiring indoor temperature after the trigger of the cold machine addition and subtraction machine;
the load factor obtaining module 202 is configured to obtain a cold machine current load factor if the indoor temperature meets a first preset condition or obtains an abnormality;
and the addition and subtraction control module 203 is configured to control the chiller to add or subtract according to the current cooling capacity of the chiller system and the predicted cooling capacity within a future preset operation time period if the chiller current load rate meets a second preset condition.
It should be noted that, because the content of information interaction and execution process between the modules/units is based on the same concept as the method embodiment of the present application, specific functions and technical effects thereof may be referred to in the method embodiment section, and details thereof are not repeated herein.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
The embodiment of the present application further provides an electronic device 300, as shown in fig. 3, including a memory 301, a processor 302, and a computer program 303 stored in the memory 301 and capable of running on the processor 302, where the processor 302 implements the steps of the control method of the cold machine adder-subtractor provided in the first aspect when executing the computer program 303.
In application, the electronic device may include, but is not limited to, a processor and a memory, fig. 3 is merely an example of an electronic device and does not constitute limitation of an electronic device, and may include more or less components than illustrated, or combine certain components, or different components, such as an input-output device, a network access device, etc. The input output devices may include cameras, audio acquisition/playback devices, display screens, and the like. The network access device may include a network module for wireless networking with an external device.
In application, the processor may be a central processing unit (Central Processing Unit, CPU), which may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In applications, the memory may in some embodiments be an internal storage unit of the electronic device, such as a hard disk or a memory of the electronic device. The memory may in other embodiments also be an external storage device of the electronic device, for example a plug-in hard disk provided on the electronic device, a Smart Media Card (SMC), a secure digital (SecureDigital, SD) Card, a Flash Card (Flash Card), etc. The memory may also include both internal storage units and external storage devices of the electronic device. The memory is used to store an operating system, application programs, boot Loader (Boot Loader), data, and other programs, etc., such as program code for a computer program, etc. The memory may also be used to temporarily store data that has been output or is to be output.
The embodiments of the present application also provide a computer readable storage medium storing a computer program, where the computer program can implement the steps in the above-mentioned method embodiments when executed by a processor.
All or part of the process in the method of the above embodiments may be implemented by a computer program, which may be stored in a computer readable storage medium and which, when executed by a processor, implements the steps of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include at least: any entity or device capable of carrying computer program code to an electronic device, a recording medium, computer Memory, read-Only Memory (ROM), random access Memory (RAM, random Access Memory), electrical carrier signals, telecommunications signals, and software distribution media. Such as a U-disk, removable hard disk, magnetic or optical disk, etc.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative apparatus and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the embodiments of the apparatus described above are illustrative only, and the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, the apparatus may be indirectly coupled or in communication connection, whether in electrical, mechanical or other form.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The control method of the cold machine adding and subtracting machine is characterized by comprising the following steps:
after the addition and subtraction of the cold machine is triggered, acquiring the indoor temperature;
if the indoor temperature meets a first preset condition or is abnormal, acquiring a cold machine current load rate;
and if the cold machine current load rate meets a second preset condition, controlling the cold machine to be added or subtracted according to the current cold quantity of the cold machine system and the predicted cold quantity within a future preset operation time.
2. The method for controlling the addition and subtraction machine of the cold machine according to claim 1, wherein the step of acquiring the indoor temperature after the addition and subtraction machine of the cold machine is triggered comprises the steps of:
after the cold machine adding and subtracting machine is triggered, determining the triggered time length of the cold machine adding and subtracting machine;
if the triggered time length is longer than the preset protection time length, acquiring the indoor temperature, otherwise, maintaining the current starting strategy of the chiller.
3. The control method of the chiller-adder according to claim 1, wherein the first preset condition is that the indoor temperature is less than or equal to a first preset temperature threshold and greater than or equal to a second preset temperature threshold, wherein the first preset temperature threshold is greater than the second preset temperature threshold.
4. The method for controlling a chiller-adder as set forth in claim 3, wherein said second preset condition is that said chiller-current load factor is greater than a first preset load factor threshold or less than a second preset load factor threshold, wherein said first preset load factor threshold is greater than said second preset load factor threshold.
5. The method for controlling the addition and subtraction of the chiller according to claim 4, wherein if the chiller current load ratio meets a second preset condition, the method for controlling the chiller to add or subtract according to the current chiller and the predicted chiller within a future preset operation time comprises:
if the cold machine current load rate is larger than the first preset load rate threshold value, acquiring the current cold quantity of the cold machine system and the predicted cold quantity in the future preset operation time period;
if the predicted cold quantity is larger than the product of the current cold quantity and a preset high load factor, controlling the cold machine to add according to a preset rule or configuration information, otherwise, maintaining the current starting strategy of the cold machine;
and if the predicted cooling capacity is not obtained, controlling the cooling machine to add according to a preset rule or configuration information.
6. The method for controlling a chiller-unit adder-subtractor as claimed in claim 4, wherein if the chiller-unit current load ratio meets a second preset condition, the method further comprises controlling the chiller-unit to add or subtract according to the current chiller-unit cooling capacity and the predicted chiller-unit cooling capacity within a future preset operation time, and further comprising:
if the cold machine current load rate is smaller than the second preset load rate threshold value, the current cold energy of the cold machine system and the predicted cold energy in the future preset operation time period are obtained;
if the predicted cold quantity is larger than the product of the current cold quantity and a preset low load factor, maintaining a current starting strategy of the refrigerator, otherwise, controlling the refrigerator to perform machine reduction according to a preset rule or configuration information;
and if the predicted cooling capacity is not obtained, controlling the cooling machine to reduce the cooling machine according to a preset rule or configuration information.
7. The control method of the cold machine adder-subtractor of claim 4, further comprising:
if the indoor temperature is greater than the first preset temperature threshold and the cold machine current load rate is greater than the first preset load rate threshold, controlling a cold machine to add according to preset rules or configuration information;
if the indoor temperature is greater than the first preset temperature threshold and the cold machine current load rate is less than or equal to the first preset load rate threshold, controlling the cold machine water supply temperature to be reduced by a preset value;
if the indoor temperature is smaller than the second preset temperature threshold and the cold machine current load rate is smaller than the second preset load rate threshold, controlling the cold machine to perform machine reduction according to preset rules or configuration information;
and if the indoor temperature is smaller than the second preset temperature threshold and the cold machine current load rate is larger than or equal to the second preset load rate threshold, controlling the cold machine water supply temperature to increase by a preset value.
8. A control device for a cold machine adding and subtracting machine, comprising:
the temperature acquisition module is used for acquiring indoor temperature after the trigger of the cold machine adding and subtracting machine;
the load factor obtaining module is used for obtaining the cold machine current load factor if the indoor temperature meets a first preset condition or is abnormal;
and the addition and subtraction control module is used for controlling the cold machine to add or subtract according to the current cold quantity of the cold machine system and the predicted cold quantity within the future preset operation time period if the cold machine current load rate meets the second preset condition.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the control method of the cold machine plus-minus machine according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the control method of the cold machine adder-subtractor as claimed in any one of claims 1 to 7.
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| CN202311458357.XA CN117346301A (en) | 2023-11-03 | 2023-11-03 | Control method, device and equipment for adding and subtracting machine of cooling machine and storage medium |
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| CN202311458357.XA CN117346301A (en) | 2023-11-03 | 2023-11-03 | Control method, device and equipment for adding and subtracting machine of cooling machine and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119146538A (en) * | 2024-11-12 | 2024-12-17 | 珠海格力电器股份有限公司 | Water temperature control method, device, control equipment and air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119146538A (en) * | 2024-11-12 | 2024-12-17 | 珠海格力电器股份有限公司 | Water temperature control method, device, control equipment and air conditioning system |
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