WO2023082707A1 - 模块化空调系统的控制方法、装置、控制器和空调系统 - Google Patents

模块化空调系统的控制方法、装置、控制器和空调系统 Download PDF

Info

Publication number
WO2023082707A1
WO2023082707A1 PCT/CN2022/107939 CN2022107939W WO2023082707A1 WO 2023082707 A1 WO2023082707 A1 WO 2023082707A1 CN 2022107939 W CN2022107939 W CN 2022107939W WO 2023082707 A1 WO2023082707 A1 WO 2023082707A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressors
compressor
conditioning system
preset
time interval
Prior art date
Application number
PCT/CN2022/107939
Other languages
English (en)
French (fr)
Inventor
袁占彪
罗攀
曹振
Original Assignee
珠海格力电器股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2023082707A1 publication Critical patent/WO2023082707A1/zh

Links

Images

Classifications

    • 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
    • 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
    • F24F11/41—Defrosting; Preventing freezing
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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

Definitions

  • the present application relates to the technical field of air conditioning, and in particular to a control method, device, controller and air conditioning system of a modular air conditioning system.
  • an embodiment of the present application provides a control method for a modular air conditioning system, wherein the modular air conditioning system includes multiple air conditioners, each air conditioner includes at least one compressor, and the method includes:
  • the modular air-conditioning system if it is determined that the number of compressors in the running state needs to be adjusted, one or more compressors are controlled to start or stop sequentially according to the preset start-stop strategy; wherein, all The aforementioned preset start-stop strategies include: the compressor that stops first starts first and the compressor that starts first stops first.
  • the controlling one or more compressors to start sequentially according to a preset sequence includes:
  • the next compressor is controlled to start.
  • the determining the start-up time interval required to start the next compressor according to the preset time-interval determination rule includes:
  • Start the first compressor and start The starting time interval of a compressor is t s +t 2
  • start the first compressor compressor and start The start-up time interval of each compressor is t s +t 2 +t 3
  • the starting time interval of one compressor is t s +t 2 +2t 3
  • the starting time interval between starting the other compressors and starting the previous compressor is t s ;
  • n is the total number of compressors included in the modular air conditioning system, and calculate and t s , t 1 , t 2 and t 3 are preset values.
  • determining whether to adjust the number of compressors in operation is determined by the following strategy:
  • the judging whether to adjust the number of compressors in operation based on the system inlet water temperature and water temperature drop rate includes:
  • T in is the inlet water temperature of the system
  • T c is the set value of the inlet water temperature
  • T 1 is the preset first temperature correction value
  • T 2 is the preset second temperature correction value
  • T 3 is the preset temperature correction value.
  • ⁇ T t is the water temperature drop rate
  • ⁇ T t1 is the preset first temperature drop rate
  • ⁇ T t2 is the preset second temperature drop rate.
  • the controlling one or more compressors to stop according to a preset start-stop strategy includes:
  • the one or more compressors are sequentially controlled to shut down every first downtime interval or every second downtime interval.
  • the time interval for controlling one or more compressors to stop is the first stop time interval
  • the time interval for controlling the shutdown of one or more compressors is the second shutdown interval; wherein, the first shutdown interval is greater than the second shutdown interval, and T 4 is a preset fourth temperature correction value.
  • the fan of the corresponding air conditioner Before the first compressor of each air conditioner is controlled to start, the fan of the corresponding air conditioner is controlled to start, and after the corresponding fan runs for a preset time, the first compressor of the corresponding air conditioner is controlled to start.
  • the preset startup sequence includes: a preset address sequence of the mainboards in each air conditioner.
  • the method also includes:
  • a shutdown instruction is obtained;
  • the shutdown instruction includes a manual shutdown instruction and a timing shutdown instruction;
  • the method also includes:
  • the air conditioners that meet the defrosting conditions are controlled to enter the defrosting mode; among them, the number of air conditioners that are controlled to enter the defrosting mode at the same time does not exceed the total number of air conditioners in the heating operation Default scale.
  • the embodiment of the present application also provides a control device for a modular air conditioning system, wherein the modular air conditioning system includes multiple air conditioners, each air conditioner includes at least one compressor, and the device includes:
  • the first control module is used to control one or more compressors to start sequentially according to the preset startup sequence when the modular air-conditioning system is started for the first time, until the requirements of working conditions are met;
  • the second control module is used to control one or more compressors in order according to the preset start-stop strategy if it is determined that the number of compressors in the running state needs to be adjusted according to the requirements of the current working conditions during the operation of the modular air-conditioning system start or stop; wherein, the preset start-stop strategy includes: the compressor that stops first starts first and the compressor that starts first stops first.
  • the embodiment of the present application also provides a controller for a modular air conditioning system, which includes:
  • the memory is used to store a program, and when the program is executed by the processor, the processor implements the control method of the modular air-conditioning system according to any one of the first aspect.
  • the embodiment of the present application also provides a modular air-conditioning system, which includes the controller of the modular air-conditioning system described in the third aspect, and further includes a controller sequentially connected to the modular air-conditioning system through wired or wireless communication.
  • a controller sequentially connected to the modular air-conditioning system through wired or wireless communication.
  • a plurality of air conditioners with a controller; wherein each air conditioner includes at least one compressor.
  • the embodiment of the present application also provides a non-transitory computer-readable storage medium, on which a computer program is stored, wherein, when the program is executed by a processor, the control method of the modular air-conditioning system in any of the foregoing embodiments is implemented .
  • Fig. 1 is a schematic diagram of a communication connection relationship of a modular air conditioning system provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of a water system connection relationship of a modular air conditioning system provided by an embodiment of the present application.
  • Fig. 3 is a schematic flowchart of a control method for a modular air conditioning system provided by an embodiment of the present application.
  • Fig. 4 is a time sequence diagram for controlling each compressor to start sequentially provided by the embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a control device for a modular air-conditioning system provided by an embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of a controller of a modular air conditioning system provided by an embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of a modular air conditioning system provided by an embodiment of the present application.
  • this application provides a control method and related devices, equipment and air-conditioning systems using the control method, so as to ensure that the air-conditioning system can achieve the best performance under any cooling load. operating status.
  • Figure 1 is a schematic diagram of a communication connection relationship of a modular air conditioning system provided by an embodiment of the present application
  • Figure 2 is a schematic diagram of a water system connection relationship of a modular air conditioning system provided by an embodiment of this application.
  • the modular air-conditioning system includes 16 modules (module 1 to module 16) that are sequentially connected by communication and finally connected to the centralized controller.
  • Each module represents a modular air-conditioner (hereinafter referred to as is "air conditioner”, which refers to the components of the air conditioner including the refrigerating unit), wherein each air conditioner includes a control board, and the control board is used to collect the corresponding operating parameters of the air conditioner, such as the temperature collected by the temperature sensors in various places. Parameters, pressure parameters collected by various pressure sensors, etc., and then send the collected parameters to the centralized controller through the communication module, and finally the centralized controller executes the control method described in the subsequent embodiments of the application, thereby realizing the control of each module centralized control.
  • the centralized controller can be connected with a control panel, so that the user can view the operating parameters of each air conditioner at the same time through the control panel, and issue control instructions to each air conditioner.
  • the communication connection methods of multiple modules include but not limited to wired connection, such as RS485 industrial bus connection, or wireless WIFI connection and so on.
  • wired connection such as RS485 industrial bus connection, or wireless WIFI connection and so on.
  • the number of air conditioners included in the modular air conditioning system is not limited to 16, but can be reasonably set according to the cooling capacity of each air conditioner and the total cooling capacity required by the user, and the connection relationship And the control method is consistent with the accompanying drawings in principle.
  • Fig. 2 only shows two air conditioners, but when the actual modular air conditioner system includes more air conditioners (such as 16 modules in Fig. 1), it is only necessary to directly Just expand.
  • each modular air conditioner is not distinguished, but each The compressors in the modular air conditioner are numbered and arranged according to specific rules, and then each compressor is started or stopped according to the operating parameters of the entire system, and finally the cooling or heating purpose is reasonably achieved.
  • FIG. 3 is a schematic flowchart of a control method for a modular air-conditioning system provided in an embodiment of the present application. This control method can be applied to the system shown in Fig. 1-2, and can be executed by the centralized controller shown in Fig. 1 .
  • control method at least includes steps S101-S102.
  • step S101 when the modular air-conditioning system is turned on for the first time, one or more compressors are controlled to start sequentially according to a preset starting sequence until the working condition requirements are met.
  • the modular air-conditioning system when the modular air-conditioning system is turned on for the first time, the modular air-conditioning system first starts components such as water pumps and fans according to requirements, and then starts the compressor.
  • components such as water pumps and fans according to requirements
  • the centralized controller continuously obtains the operating parameters of each running air conditioner, and judges whether more compressors need to be started according to the current working condition requirements (such as cooling capacity demand). If not, maintain the current state, and the working condition requirement has been met at this time.
  • the initial start-up of the modular air-conditioning system includes the following situations: 1. The first start-up after power-on; 2. The first start-up after all air-conditioning units are shut down. The shutdown includes shutdown at the temperature point, failure shutdown or manual shutdown.
  • each air conditioner includes at least one compressor (that is, it can be one, two or more, but the situation of three or more is rare), and the number of compressors is not sufficient for this implementation.
  • the control method of the example has no substantial impact.
  • step S102 during the operation of the modular air conditioning system, if it is determined that the number of compressors in the running state needs to be adjusted according to the requirements of the current working conditions, one or more compressors are controlled to start or stop sequentially according to the preset start-stop strategy.
  • the preset start-stop strategy includes: the first-stop compressor starts first and the first-start compressor stops first.
  • the working condition requirements may constantly change, so it is necessary to determine the current working condition requirements of the modular air-conditioning system in real time or periodically, and determine whether it is necessary to adjust the compressor in the running state If necessary, control one or more compressors to start or stop according to the preset start-stop strategy (that is, the principle strategy of "first start, first stop, first stop, first start”).
  • the principle and strategy of "first start, first stop, first stop, first start” is to avoid the situation that some compressors run for a long time and some compressors run for a short time, so that the running time of the compressors in the whole system is relatively different. Smaller in order to improve the operational reliability of the compressor and prolong its service life.
  • the start-stop state of each compressor of the modular air-conditioning system can be controlled.
  • the modular installation and modular control of the air-conditioning system with any cooling capacity can be realized, so that the modular air-conditioning system can To achieve a better control strategy, to ensure that the air conditioning system can achieve a better operating state under any cooling load.
  • the specific process includes: determining the starting time required to start the next compressor according to a preset time interval determination rule; Time interval; when the running time of the most recently started compressor reaches the start time interval, judge whether the start condition for controlling the start of the next compressor is met; if the start condition is met, control the start of the next compressor.
  • the preset value can be directly used as the start-up time for each compressor interval.
  • some embodiments of the present application provide the following scheme to determine the startup time interval:
  • the start-up time interval required to start the next compressor is determined according to the following rules:
  • Start the first compressor and start The starting time interval of a compressor is t s +t 2
  • start the first compressor compressor and start The start-up time interval of each compressor is t s +t 2 +t 3
  • the starting time interval of one compressor is t s +t 2 +2t 3
  • the starting time interval between starting the other compressors and starting the previous compressor is t s ;
  • n is the total number of compressors included in the modular air conditioning system, and calculate and t s , t 1 , t 2 and t 3 are preset values.
  • the preset time interval t s +t 1 as the corresponding startup time interval. And when there are at least two compressors in the running state, according to the specific number of compressors that have been started, the compressors are controlled to start according to the rule of the above case 2.
  • the running time of the recently started compressor reaches the start time interval determined in the previous step, it is judged according to the current working condition whether more compressors need to be started, that is, whether the start condition for controlling the start of the next compressor is satisfied, If the starting condition is met, the next compressor is controlled to start, and then the above steps are repeated until the requirement of the working condition is met. If it is judged that the above starting conditions are not satisfied, it indicates that the working condition requirement has been met at this time, so no more compressors will be started, and the number of currently running compressors will remain unchanged.
  • the following strategy is used to determine whether to adjust the number of compressors in the running state, that is, according to the current working condition, determining whether to adjust the number of compressors in the running state includes:
  • the system inlet water temperature of the modular air-conditioning system can represent whether the current cooling capacity is sufficient, and the water temperature drop rate can represent the change trend and speed of the current cooling capacity. Therefore, the system inlet water temperature and the water temperature drop rate can be Determine whether the number of compressors in operation needs to be adjusted.
  • the specific process of determining the system inlet water temperature of the modular air-conditioning system may include: if the number of air conditioners in the running state is one, the inlet water temperature of the corresponding air conditioner is used as the system inlet water temperature ; If the number of air conditioners in the running state is 2, then take the average value of the inlet water temperature of the corresponding air conditioners as the system inlet water temperature; if the number of air conditioners in the running state is at least 3, then obtain the The water inlet temperature of each air conditioner in the state, and after removing the highest temperature and the lowest temperature, take the average value of all remaining values as the system inlet water temperature.
  • a feasible implementation process of determining a control strategy for the compressor based on the system inlet water temperature and the water temperature drop rate may include:
  • T in ⁇ T c -T 3 it is determined that the number of compressors in operation needs to be reduced; when the above conditions are met, it indicates that the system inlet water temperature is too low at this time, so a certain number of compressors are controlled to stop, so as to reduce cooling capacity;
  • T in is the inlet water temperature of the system
  • T c is the set value of the inlet water temperature
  • T 1 is the preset first temperature correction value (the default is 4°C, which can be adjusted according to requirements)
  • T 2 is the preset value.
  • the preset second temperature correction value (the default is 1°C, which can be adjusted according to demand), T 1 >T 2 , and T 3 is the preset third temperature correction value (the default is 1°C, which can be adjusted according to demand), ⁇ T t is the water temperature drop rate, ⁇ T t1 is the preset first temperature drop rate (default is 0.5°C/min, can be adjusted according to demand), ⁇ T t2 is the preset second temperature drop rate (The default is 0.4 ⁇ T t1 , that is, 0.2°C/min, which can be adjusted according to requirements).
  • controlling one or more compressors to stop according to the preset start-stop strategy includes: every first stop time interval or every second stop time interval Sequentially control one or more compressors to stop.
  • the compressors when the compressors are controlled to stop sequentially, the compressors may be controlled to stop sequentially according to a preset stop time interval (the first stop time interval or the second stop time interval).
  • the time interval for controlling one or more compressors to stop is the first stop time interval
  • control The time interval during which one or more compressors are shut down is the second downtime interval; wherein the first downtime interval is greater than the second downtime interval, and T 4 is a preset fourth temperature correction value, T 4 >T 3 .
  • the time interval of the shutdown adopts the larger first shutdown time interval (such as 5min)
  • T in ⁇ T c -T 4 it indicates that the temperature of the system inlet water is too low and exceeds the reasonable range that the system can bear.
  • the time interval of the shutdown is a smaller second shutdown Time interval (such as 2min) to achieve fast emergency shutdown.
  • the above method also includes: before controlling the first compressor of each air conditioner to start, controlling the fan of the corresponding air conditioner to start, and after the corresponding fan runs for a preset time, controlling the fan of the corresponding air conditioner to start.
  • the first compressor starts.
  • the start-up sequence of the fan and the compressor meets the following rules: When the start-up time of the A compressor is reached, if the start-up condition of the fan is met at this time, the fan is started first, and the A compressor is started after the fan runs for a preset time , which is equivalent to delaying the starting time of compressor A by the preset time.
  • step S101 when one or more compressors are controlled to start sequentially, the corresponding preset starting sequence may be, for example, in the order from module 1 to module 16.
  • each module includes The control boards (referred to as the main board) of each air conditioner are preset with different addresses for communicating with the centralized controller, so the preset startup sequence can be the preset address sequence of the main boards in each air conditioner.
  • the above control method for controlling the sequential shutdown of the compressors is essentially the automatic control logic of the system itself.
  • some embodiments of the present application also provide a shutdown control method related to user intervention.
  • the above method further includes: obtaining a shutdown instruction during the operation of the modular air conditioning system; the shutdown instruction includes manually At least one of the shutdown instruction and the timing shutdown instruction; according to the shutdown instruction, all the compressors that are turned on are controlled to stop in sequence every third shutdown time interval.
  • the centralized controller can also control all the compressors that are turned on to stop sequentially according to the manual shutdown instruction and the timing shutdown instruction triggered by the user, and, in actual implementation, since the compressor shutdown is triggered by the user, it is quite Since the user does not need to continue to use the modular air-conditioning system at this time, the third downtime interval during which the compressors are shut down sequentially can be shorter than the aforementioned first downtime interval (such as 5 minutes) and second downtime interval (such as 2 minutes), For example, it can be 10s, so as to realize the rapid shutdown of the whole system.
  • the aforementioned first downtime interval such as 5 minutes
  • second downtime interval such as 2 minutes
  • each compressor is sequentially controlled to start according to the preset start sequence, or each compressor is controlled to start according to the preset start-stop strategy, if the air conditioner corresponding to the next compressor to be started fails or triggers During protection, the compressor to be started is skipped, and the compressors behind the compressor to be started are started in sequence. And when the compressor to be started is faulty or the protection is restored, when the compressor is started again, the compressor corresponding to the air conditioner that has been faulty or protected before is preferentially started.
  • air conditioner faults and protections include but are not limited to: high pressure protection, low pressure protection, compressor overload protection (compressor internal protection and external overcurrent protection are connected in series), phase sequence protection, fan overload protection, exhaust high temperature protection, various Various temperature sensing package failures, anti-freezing protection, anti-overheating protection and water flow switch protection, etc.
  • the above method further includes: in the heating mode, if one or more air conditioners meet the defrosting conditions, controlling the air conditioners that meet the defrosting conditions to enter the defrosting mode; wherein, the control enters the defrosting mode at the same time
  • the number of air conditioners does not exceed the preset ratio of the total number of air conditioners in heating operation.
  • the frosting conditions of the evaporators are different, and multiple air conditioners may meet the requirements at the same time.
  • the defrosting condition in this case, while satisfying the requirements for entering the defrosting mode, it is necessary to control the number of air conditioners entering the defrosting mode at the same time not to exceed the preset ratio of the total number of air conditioners in heating operation. Its purpose is to ensure the safe and reliable operation of the system. The reason is that when the air conditioner defrosts, it is equivalent to cooling operation. Therefore, if there are too many air conditioners defrosting at the same time, the system water temperature may drop to too low, which may cause the waterway to freeze , causing an exception in the system.
  • an embodiment of the present application further provides a control device for a modular air-conditioning system.
  • the device is a software and/or hardware-based functional module for realizing the control method of the modular air-conditioning system of the above-mentioned embodiment.
  • control device includes: a first control module 51 and a second control module 52
  • the first control module 51 is used to control one or more compressors to start sequentially according to a preset startup sequence when the modular air-conditioning system is turned on for the first time until the working conditions are met.
  • the second control module 52 is used to control one or more compressors according to the preset start-stop strategy in turn if it is determined that the number of compressors in the running state needs to be adjusted according to the current working conditions during the operation of the modular air-conditioning system. start or stop; wherein, the preset start-stop strategy includes: the compressor that stops first starts first and the compressor that starts first stops first.
  • the first control module 51 controls one or more compressors to start sequentially according to a preset sequence, it is specifically used to:
  • the next compressor is controlled to start.
  • the first control module 51 determines the startup time interval required to start the next compressor according to the preset time interval determination rule, it is specifically used to:
  • Start the first compressor and start The starting time interval of a compressor is t s +t 2
  • start the first compressor compressor and start The start-up time interval of each compressor is t s +t 2 +t 3
  • the starting time interval of one compressor is t s +t 2 +2t 3
  • the starting time interval between starting the other compressors and starting the previous compressor is t s ;
  • n is the total number of compressors included in the modular air conditioning system, and calculate and t s , t 1 , t 2 and t 3 are preset values.
  • the second control module 52 determines whether it is necessary to adjust the number of compressors in the running state through the following strategy:
  • the second control module 52 is specifically used to:
  • T in is the inlet water temperature of the system
  • T c is the set value of the inlet water temperature
  • T 1 is the preset first temperature correction value
  • T 2 is the preset second temperature correction value
  • T 3 is the preset temperature correction value.
  • ⁇ T t is the water temperature drop rate
  • ⁇ T t1 is the preset first temperature drop rate
  • ⁇ T t2 is the preset second temperature drop rate.
  • the second control module 52 controls one or more compressors to stop according to a preset start-stop strategy, it is specifically used to:
  • the one or more compressors are sequentially controlled to shut down every first downtime interval or every second downtime interval.
  • the time interval for controlling one or more compressors to stop is the first stop time interval
  • the time interval for controlling the shutdown of one or more compressors is the second shutdown interval; wherein the first shutdown interval is greater than the second shutdown interval, and T 4 is the preset fourth temperature correction value.
  • the first control module 51 is also used for:
  • the fan of the corresponding air conditioner Before the first compressor of each air conditioner is controlled to start, the fan of the corresponding air conditioner is controlled to start, and after the corresponding fan runs for a preset time, the first compressor of the corresponding air conditioner is controlled to start.
  • the first control module 51 or the second control module 52 is also used for:
  • the shutdown instruction includes a manual shutdown instruction and a timed shutdown instruction
  • the first control module 51 or the second control module 52 is also used for:
  • the air conditioners that meet the defrosting conditions are controlled to enter the defrosting mode; among them, the number of air conditioners that are controlled to enter the defrosting mode at the same time does not exceed the total number of air conditioners in the heating operation Default scale.
  • an embodiment of the present application further provides a controller of the modular air-conditioning system.
  • the controller is the centralized controller shown in FIG. 1 .
  • a controller of a modular air conditioning system includes:
  • the memory 61 is used to store a program, and when the program is executed by the processor, the processor implements the control method of the modular air-conditioning system described in any one of the foregoing method embodiments.
  • the start-stop state of each compressor of the system can be controlled.
  • the modular installation and modular control of the air-conditioning system with any cooling capacity can be realized, so that the modularized air-conditioning system can be optimized.
  • the control strategy ensures that the air conditioning system can reach the best operating state under any cooling load.
  • the present application also provides a modular air conditioning system, which will be described below with reference to FIG. 7 .
  • a modular air conditioning system includes the controller 72 of the modular air conditioning system in any of the foregoing embodiments, and also includes a plurality of controllers connected to the controller 72 of the modular air conditioning system sequentially through wired or wireless communication.
  • each part of the present application may be realized by hardware, software, firmware or a combination thereof.
  • various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
  • each functional unit in each embodiment of the present application may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.
  • the storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

一种模块化空调系统的控制方法，包括：在模块化空调系统初次开机时，控制一个或多个压缩机按照预设启动顺序依次启动，直至达到工况需求；在模块化空调系统运行过程中，根据当前工况需求，若确定需要调整处于运行状态的压缩机的数量，则控制一个或多个压缩机按照预设启停策略依次启动或停机；其中，预设启停策略包括：先停机的压缩机先启动和先启动的压缩机先停机。还公开了一种模块化空调系统的装置、控制器和和一种模块化空调系统。

Description

模块化空调系统的控制方法、装置、控制器和空调系统
相关申请的交叉引用
本申请是以CN申请号为202111345688.3，申请日为2021年11月15日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本申请涉及空调技术领域，尤其涉及一种模块化空调系统的控制方法、装置、控制器和空调系统。
背景技术
随着空调的普及，越来越多的空调进入普通家庭中，目前大多数空调的安装运行都是单台运行，即每台空调都通过各自的控制方法单独控制，这类的控制方法已经非常成熟，已经走向市场。而在一些地方，对不同冷量的空调，尤其是小冷量空调(4～16KW)根据用户的需求进行模块化变成一种新的市场需求。
发明内容
第一方面，本申请实施例提供一种模块化空调系统的控制方法，其中，所述模块化空调系统包括多台空调，每台空调包括至少一个压缩机，所述方法包括：
在模块化空调系统初次开机时，控制一个或多个压缩机按照预设启动顺序依次启动，直至达到工况需求；
在模块化空调系统运行过程中，根据当前工况需求，若确定需要调整处于运行状态的压缩机的数量，则控制一个或多个压缩机按照预设启停策略依次启动或停机；其中，所述预设启停策略包括：先停机的压缩机先启动和先启动的压缩机先停机。
在一些实施例中，所述控制一个或多个压缩机按照预设的顺序依次启动，包括：
根据预设的时间间隔确定规则，确定启动下一个压缩机所需的启动时间间隔；
在最近启动的压缩机的运行时间达到所述启动时间间隔时，判断是否满足控制下一个压缩机启动的启动条件；
若满足所述启动条件，控制下一个压缩机启动。
在一些实施例中，所述根据预设的时间间隔确定规则，确定启动下一个压缩机所 需的启动时间间隔，包括：
若当前仅有一个压缩机处于运行状态，则确定启动下一个压缩机所需的启动时间间隔为t s+t 1；
若当前有至少两个压缩机处于运行状态，则按照以下规则确定启动下一个压缩机所需的启动时间间隔：
启动第
Figure PCTCN2022107939-appb-000001
个压缩机与启动第
Figure PCTCN2022107939-appb-000002
个压缩机的启动时间间隔为t s+t 2，启动第
Figure PCTCN2022107939-appb-000003
个压缩机与启动第
Figure PCTCN2022107939-appb-000004
个压缩机的启动时间间隔为t s+t 2+t 3，启动第
Figure PCTCN2022107939-appb-000005
个压缩机与启动第
Figure PCTCN2022107939-appb-000006
个压缩机的启动时间间隔为t s+t 2+2t 3，启动其余压缩机与启动前一个压缩机的启动时间间隔为t s；
其中，n为模块化空调系统包括的压缩机的总数，且计算
Figure PCTCN2022107939-appb-000007
和
Figure PCTCN2022107939-appb-000008
时计算结果统一向上取整或统一向下取整，t s、t 1、t 2和t 3均为预设值。
在一些实施例中，通过如下策略确定是否需要调整处于运行状态的压缩机的数量：
确定模块化空调系统的系统进水温度和水温温降速率；其中，所述系统进水温度为基于所有处于运行状态的空调的进水温度计算得到，所述水温温降速率为基于当前时刻的系统进水温度和前一时刻的系统进水温度计算得到；
基于所述系统进水温度和水温温降速率，判断是否需要调整处于运行状态的压缩机的数量。
在一些实施例中，所述基于所述系统进水温度和水温温降速率，判断是否需要调整处于运行状态的压缩机的数量，包括：
若T in≥T c+T 1且△T t≤△T t1，则确定需要增加处于运行状态的压缩机的数量；
若T in≥T c+T 1且△T t>△T t1，则确定无需调整处于运行状态的压缩机的数量；
若T c+T 1>T in>T c+T 2且△T t>△T t1，则确定需要减少处于运行状态的压缩机的数量；
若T c+T 1>T in>T c+T 2且△T t2≤△T t≤△T t1，则确定无需调整处于运行状态的压缩机的数量；
若T c+T 1>T in>T c+T 2且△T t<△T t2，则确定需要增加处于运行状态的压缩机的数量；
若T c-T 3≤T in≤T c+T 2，则确定无需调整处于运行状态的压缩机的数量；
若T in<T c-T 3，则确定需要减少处于运行状态的压缩机的数量；
其中，T in为所述系统进水温度，T c为进水温度设定值，T 1为预设的第一温度修正值，T 2为预设的第二温度修正值，T 3为预设的第三温度修正值，△T t为所述水温温降速率，△T t1为预设的第一温降速率，△T t2为预设的第二温降速率。
在一些实施例中，所述控制一个或多个压缩机按照预设启停策略停机，包括：
每间隔第一停机时间间隔或每间隔第二停机时间间隔依次控制一个或多个压缩机停机。
在一些实施例中，若T c-T 4<T in<T c-T 3，则控制一个或多个压缩机停机的时间间隔为所述第一停机时间间隔，若T in≤T c-T 4，控制一个或多个压缩机停机的时间间隔为所述第二停机时间间隔；其中，所述第一停机时间间隔大于所述第二停机时间间隔，T 4为预设的第四温度修正值。
在一些实施例中，
在控制每台空调的第一个压缩机启动前，控制对应的空调的风机启动，并在对应的风机运行预设时间后，控制对应的空调的第一个压缩机启动。
在一些实施例中，所述预设启动顺序包括：预设的每台空调中的主板的地址顺序。
在一些实施例中，所述方法还包括：
在模块化空调系统运行过程中，获取关机指令；所述关机指令包括手动关机指令和定时关机指令；
根据所述关机指令，每间隔第三停机时间间隔控制所有开启的压缩机依次停机。
在一些实施例中，所述方法还包括：
在制热模式下，若一个或多台台空调满足化霜条件，控制满足化霜条件的空调进入化霜模式；其中，控制同时进入化霜模式的空调数量不超过制热运行的空调总数的预设比例。
第二方面，本申请实施例还提供一种模块化空调系统的控制装置，其中，所述模块化空调系统包括多台空调，每台空调包括至少一个压缩机，所述装置包括：
第一控制模块，用于在模块化空调系统初次开机时，控制一个或多个压缩机按照预设启动顺序依次启动，直至达到工况需求；
第二控制模块，用于在模块化空调系统运行过程中，根据当前工况需求，若确定需要调整处于运行状态的压缩机的数量，则控制一个或多个压缩机按照预设启停策略依次启动或停机；其中，所述预设启停策略包括：先停机的压缩机先启动和先启动的 压缩机先停机。
第三方面，本申请实施例还提供一种模块化空调系统的控制器，其包括：
存储器和与所述存储器相连接的处理器；
所述存储器，用于存储程序，所述程序被所述处理器执行时使所述处理器实现如第一方面任一项所述的模块化空调系统的控制方法。
第四方面，本申请实施例还提供一种模块化空调系统，其包括第三方面所述的模块化空调系统的控制器，还包括通过有线或无线方式依次通讯连接至所述模块化空调系统的控制器的多台空调；其中，每台空调包括至少一个压缩机。
第五方面，本申请实施例还提供一种非瞬时性计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现前述任意实施例的模块化空调系统的控制方法。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
图1为本申请实施例提供的一种模块化空调系统的通讯连接关系示意图。
图2为本申请实施例提供的一种模块化空调系统的水系统连接关系示意图。
图3为本申请实施例提供的一种模块化空调系统的控制方法的流程示意图。
图4本申请实施例提供的控制各个压缩机依次启动的时序图。
图5为本申请实施例提供的一种模块化空调系统的控制装置的结构示意图。
图6为本申请实施例提供的一种模块化空调系统的控制器的结构示意图。
图7为本申请实施例提供的一种模块化空调系统的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
为了更好地实现对模块化空调系统的应用，本申请提供一种控制方法以及应用该控制方法的相关装置、设备和空调系统，以保证在任意冷量负荷下，空调系统都能达到最佳的运行状态。以下通过实施例对具体实现方案进行详细说明。
在对本申请的控制方法进行详细说明之前，首先对相关的、能够应用该控制方法的模块化空调系统的结构和原理进行说明。
参照图1-2，图1为本申请实施例提供的一种模块化空调系统的通讯连接关系示意图，图2为本申请实施例提供的一种模块化空调系统的水系统连接关系示意图。
如图1所示，该模块化空调系统包括依次通讯连接并最终连接至集中控制器的16个模块(模块1～模块16)，每个模块即表示一台模块化空调(本申请中后续简称为“空调”，其指包括制冷机组在内的空调外机等部件)，其中，每台空调均包括控制主板，控制主板用于收集对应的空调的运行参数，比如各处温度传感器采集的温度参数，各处压力传感器采集的压力参数等等，然后通过通讯模块将收集的参数发送至集中控制器，最终由集中控制器执行本申请后续实施例所述的控制方法，从而实现对各个模块的集中控制。并且，实际应用中，可将该集中控制器与一个控制屏相连接，从而使用户可以通过该控制屏同时查看各个空调的运行参数，并向各个空调下达控制指令。
多个模块(空调)的通讯连接方法包括但不限于有线连接，比如RS485工业总线连接，或者无线WIFI连接等等。此外需要说明的是，实际应用时，模块化空调系统包括的空调数量不限制为16个，而是可以根据每台空调的制冷量和用户所需的总制冷量来合理设置，且其连接关系和控制方法与提供的附图从原理上来看一致。
如图2所示，多台空调的水系统并联至主系统，共同实现制冷/制热运行。其中，需要说明的是，图2仅示出了两台空调，但当实际的模块化空调系统包括更多空调时(比如图1中的16个模块)，只需在图2的基础上直接扩展即可。
基于上述系统，概括来说，从控制系统上看，是将多个模块化空调通过水系统和通讯控制组合到一起，但在实际控制方法中，并不区分各模块化空调，而是将各模块化空调中的压缩机按照特定的规则进行编号排列，再根据整个系统的运行参数，来启动或停止各个压缩机，最终合理地实现制冷或制热目的。
具体控制方法参照图3，图3为本申请实施例提供的一种模块化空调系统的控制方法的流程示意图。该控制方法可应用于图1-2所示的系统，并可由图1所示的集中控制器来执行。
如图3所示，该控制方法至少包括步骤S101～S102。
在步骤S101中，在模块化空调系统初次开机时，控制一个或多个压缩机按照预设启动顺序依次启动，直至达到工况需求。
在一些实施例中，在模块化空调系统初次开机时，模块化空调系统按照需求首先启动水泵和风机等部件，之后再启动压缩机。启动压缩机时，每次仅启动一台压缩机，且集中控制器不断获取各运行空调的运行参数，并根据当前的工况需求(比如冷量需求)判断是否需要启动更多的压缩机，若不需要，则维持当前状态，此时即达到了工况需求。模块化空调系统初次开机包括以下情况：1、上电后初次开机；2、所有空调的机组都停机后的初次开机，其中，停机包括到温度点停机、故障停机或手动关机等。
其中需要说明的是，实际应用中，每台空调包括至少一个压缩机(即可以是一个、两个或更多，但三个或以上的情况很少见)，且其压缩机的数量对本实施例的控制方法无实质影响。
在步骤S102中，在模块化空调系统运行过程中，根据当前工况需求，若确定需要调整处于运行状态的压缩机的数量，则控制一个或多个压缩机按照预设启停策略依次启动或停机；其中，所述预设启停策略包括：先停机的压缩机先启动和先启动的压缩机先停机。
在一些实施例中，模块化空调系统运行过程中，工况需求可能会不断发生变化，因此需要实时或定时确定模块化空调系统的当前工况需求，并判断是否需要调整处于运行状态的压缩机的数量，如果需要，则控制一个或多个压缩机按照预设启停策略(也即“先开先停、先停先开”的原则策略)启动或停机。其中，“先开先停、先停先开”的原则策略的作用是避免有些压缩机运行时间很长，有些压缩机运行时间很短的情况，使整个系统中的压缩机的运行时间相对差别较小，以提高了压缩机的运行可靠性并延长其使用寿命。
通过上述控制方案，可实现对模块化空调系统的各个压缩机的启停状态进行控制，应用该方案后可以实现任意冷量的空调系统的模块化安装和模块化控制，从而使模块化空调系统达到更优的控制策略，保证在任意冷量负荷下，空调系统都能达到更佳的运行状态。
在一些实施例中，所述步骤S101中控制一个或多个压缩机按照预设的顺序依次启动时，具体过程包括：根据预设的时间间隔确定规则，确定启动下一个压缩机所需的启动时间间隔；在最近启动的压缩机的运行时间达到所述启动时间间隔时，判断是 否满足控制下一个压缩机启动的启动条件；若满足所述启动条件，控制下一个压缩机启动。
具体的，上述实施例中，当需要控制一个或多个压缩机依次启动时，由于每个压缩机启动后都会导致系统运行参数变化，且该变化过程不是瞬间完成的，因此，为了保证系统达到稳定运行状态，在控制下一个压缩机启动前，需等待一定时间(也即所述启动时间间隔)以使系统稳定。
上述步骤中根据预设的时间间隔确定规则，确定启动下一个压缩机所需的启动时间间隔时，在具体实现时，比如可以是，针对每个压缩机直接采用预设值作为所述启动时间间隔。
不过，考虑到模块化空调系统通常包括的压缩机数量比较多，直接采用预设值作为所述启动时间间隔时，可能导致短时间内连续启动的压缩机过多，从而导致系统运行参数变化过快，进而导致频繁启停。因此，本申请一些实施例中提供如下方案确定所述启动时间间隔：
①若当前仅有一个压缩机处于运行状态，则确定启动下一个压缩机所需的启动时间间隔为t s+t 1；
②若当前有至少两个压缩机处于运行状态，则按照以下规则确定启动下一个压缩机所需的启动时间间隔：
启动第
Figure PCTCN2022107939-appb-000009
个压缩机与启动第
Figure PCTCN2022107939-appb-000010
个压缩机的启动时间间隔为t s+t 2，启动第
Figure PCTCN2022107939-appb-000011
个压缩机与启动第
Figure PCTCN2022107939-appb-000012
个压缩机的启动时间间隔为t s+t 2+t 3，启动第
Figure PCTCN2022107939-appb-000013
个压缩机与启动第
Figure PCTCN2022107939-appb-000014
个压缩机的启动时间间隔为t s+t 2+2t 3，启动其余压缩机与启动前一个压缩机的启动时间间隔为t s；
其中，n为模块化空调系统包括的压缩机的总数，且计算
Figure PCTCN2022107939-appb-000015
和
Figure PCTCN2022107939-appb-000016
时计算结果统一向上取整或统一向下取整，t s、t 1、t 2和t 3均为预设值。
具体的，系统开机后，若当前仅有一个压缩机处于运行状态，则通常仅依靠该压缩机不足以提供足够的冷量，因此本实施例中直接以预设的时间间隔t s+t 1作为对应的启动时间间隔。而当有至少两个压缩机处于运行状态时，则根据已启动的压缩机的具体数量，按照上述情况②的规则控制压缩机启动。
为了便于更直观地理解，假设n＝19，t s＝1，t 1＝2，t 2＝1，t 3＝2(时间单 位均为min)，则控制n个压缩机启动的时序图如图4所示(计算
Figure PCTCN2022107939-appb-000017
和
Figure PCTCN2022107939-appb-000018
时计算结果均向上取整)。
当然，应当理解的是，具体应用中，上述各参数具体采用的数值可以适当调整，只需遵循其基本原理：从整体趋势来看，每当启动一定数量的压缩机后，启动下一压缩机的时间间隔越来越长。
当最近启动的压缩机的运行时间达到前一步骤确定的启动时间间隔时，则根据当前工况需求判断是否需要启动更多压缩机，也即判断是否满足控制下一个压缩机启动的启动条件，若满足该启动条件，则控制下一个压缩机启动，之后，再重复执行前述步骤，直至达到工况需求。若判断不满足上述启动条件，表明此时已达到工况需求，因此不再启动更多压缩机，维持当前运行的压缩机的数量不变。
在上述方案的基础上，为了更好地对模块化空调系统进行控制，本申请还通过下述多个实施例提供进一步的具体实现方案或改进方案。
在一些实施例中，所述步骤S102中，通过如下策略确定是否需要调整处于运行状态的压缩机的数量，即根据当前工况需求，确定是否需要调整处于运行状态的压缩机的数量包括：
确定模块化空调系统的系统进水温度和水温温降速率；其中，所述系统进水温度为基于所有处于运行状态的空调的进水温度计算得到，所述水温温降速率为基于当前时刻的系统进水温度和前一时刻的系统进水温度计算得到；
基于所述系统进水温度和水温温降速率，判断是否需要调整处于运行状态的压缩机的数量。
具体的，模块化空调系统的系统进水温度可以表征当前冷量是否充足，而水温温降速率可以表征当前冷量的变化趋势和变化速度，因此，可以通过系统进水温度和水温温降速率判断是否需要调整处于运行状态的压缩机的数量。
此外，实际应用中，确定模块化空调系统的系统进水温度的具体过程可以包括：若处于运行状态的空调的数量为1台，则以对应的空调的进水温度作为所述系统进水温度；若处于运行状态的空调的数量为2台，则以对应的空调的进水温度的平均值作为所述系统进水温度；若处于运行状态的空调的数量为至少3台，则获取处于运行状态的每台空调的进水温度，并去掉其中的最高温度和最低温度后，以全部剩余值的平均值作为所述系统进水温度。
进一步的，基于所述系统进水温度和水温温降速率确定对压缩机的控制策略的一种可行的实现过程可以包括：
1)若T in≥T c+T 1且△T t≤△T t1，则确定需要增加处于运行状态的压缩机的数量；满足前述条件时，表明此时系统进水温度过高且水温温降速率偏小，因此控制更多压缩机启动，以提供更多冷量；
2)若T in≥T c+T 1且△T t>△T t1，则确定无需调整处于运行状态的压缩机的数量；满足前述条件时，表明此时系统进水温度过高但水温温降速率较大，则一段时间后，系统进水温度可降低至合理范围，因此维持已开启的压缩机的数量不变；
3)若T c+T 1>T in>T c+T 2且△T t>△T t1，则确定需要减少处于运行状态的压缩机的数量；满足前述条件时，表明此时系统进水温度偏高但水温温降速率较大，则一段时间后，系统进水温度会降低至超出合理范围，因此控制一定数量的压缩机依次停机，以减少冷量；其中，停机的时间间隔可采用设定值，比如5min；
4)若T c+T 1>T in>T c+T 2且△T t2≤△T t≤△T t1，则确定无需调整处于运行状态的压缩机的数量；满足前述条件时，表明此时系统进水温度偏高且水温温降速率较小，则系统进水温度可降低至合理范围内，因此维持已开启的压缩机的数量不变；
5)若T c+T 1>T in>T c+T 2且△T t<△T t2，则确定需要增加处于运行状态的压缩机的数量；满足前述条件时，表明此时系统进水温度偏高且水温温降速率过小，则一段时间后，系统进水温度会升高至超出合理范围，因此控制更多压缩机启动，以提供更多冷量；
6)若T c-T 3≤T in≤T c+T 2，则确定无需调整处于运行状态的压缩机的数量；满足前述条件时，表明此时系统进水温度合理，因此维持已开启的压缩机的数量不变；
7)若T in<T c-T 3，则确定需要减少处于运行状态的压缩机的数量；满足前述条件时，表明此时系统进水温度过低，因此控制一定数量的压缩机停机，以减少冷量；
其中，T in为所述系统进水温度，T c为进水温度设定值，T 1为预设的第一温度修正值(默认为4℃，可根据需求进行调整)，T 2为预设的第二温度修正值(默认为1℃，可根据需求进行调整)，T 1>T 2，T 3为预设的第三温度修正值(默认为1℃，可根据需求进行调整)，△T t为所述水温温降速率，△T t1为预设的第一温降速率(默认为0.5℃/min，可根据需求进行调整)，△T t2为预设的第二温降速率(默认为0.4△T t1，即0.2℃/min，可根据需求进行调整)。
在上述方案的基础上，一些实施例中，所述步骤S102中，控制一个或多个压缩 机按照预设启停策略停机，包括：每间隔第一停机时间间隔或每间隔第二停机时间间隔依次控制一个或多个压缩机停机。
也即，在控制压缩机依次停机时，可按照预设的停机时间间隔(第一停机时间间隔或第二停机时间间隔)，控制压缩机依次停机。
比如，若T c-T 4<T in<T c-T 3，则控制一个或多个压缩机停机的时间间隔为所述第一停机时间间隔，若T in≤T c-T 4，控制一个或多个压缩机停机的时间间隔为所述第二停机时间间隔；其中所述第一停机时间间隔大于所述第二停机时间间隔，T 4为预设的第四温度修正值，T 4>T 3。其中，当T c-T 4<T in<T c-T 3时，表明系统进水温度过低但仍在系统可承受的合理范围内，因此停机的时间间隔采用较大的第一停机时间间隔(比如5min)，而当T in≤T c-T 4时，表明系统进水温度过低且超出系统可承受的合理范围，为了保护系统，因此停机的时间间隔采用较小的第二停机时间间隔(比如2min)，实现快速紧急停机。
此外，在具体实现时，上述方法还包括：在控制每台空调的第一个压缩机启动前，控制对应的空调的风机启动，并在对应的风机运行预设时间后，控制对应的空调的第一个压缩机启动。
也即，在控制每台空调的第一个压缩机启动前，需确保同属于一台空调的风机首先启动并运行预设时间(比如45s)，以满足压缩机的启动要求。并且其中风机和压缩机的启动时序满足如下规则：在到达A压缩机的启动时刻时，若此时满足风机的启动条件，则首先启动风机，并在风机运行预设时间后再启动A压缩机,相当于将A压缩机的启动时刻延后所述预设时间。
其中，一些实施例中，步骤S101中，在控制一个或多个压缩机依次启动时，对应的预设启动顺序比如可以是按照从模块1到模块16的顺序，具体实现时，每个模块包括的控制主板(简称主板)都预先设置不同的地址，用于与集中控制器通讯，因此预设启动顺序可以是预设的每台空调中的主板的地址顺序。
此外，以上控制压缩机依次停机的控制方法，实质上是系统自身的自动控制逻辑。除此之外，本申请一些实施例还提供涉及用户干预后的停机控制方法，该实施例中，上述方法还包括：在模块化空调系统运行过程中，获取关机指令；所述关机指令包括手动关机指令和定时关机指令中至少一项；根据所述关机指令，每间隔第三停机时间间隔控制所有开启的压缩机依次停机。
也即，本实施例中，集中控制器还可以根据用户触发的手动关机指令和定时关机 指令来控制所有开启的压缩机依次停机，并且，具体实现时，由于是用户触发的压缩机停机，相当于用户此时无需继续使用模块化空调系统，因此，压缩机依次停机的第三停机时间间隔可以相对前述的第一停机时间间隔(比如5min)和第二停机时间间隔(比如2min)更小，比如可以是10s，从而实现整个系统的快速停机。
此外，在用户手动关机或定时关机后，若整个系统未断电(可记忆之前的运行状态)，则再次开机时，压缩机的启动顺序可直接按照关机前的启动顺序，从而减少判断和计算过程。
此外，需要说明的是，在按照预设启动顺序依次控制各个压缩机启动时，或按照预设启停策略控制各个压缩机启动时，若下一个待启动的压缩机对应的空调出现故障或触发保护时，则跳过该待启动的压缩机，并按照顺序启动该待启动的压缩机后面的压缩机。且当该待启动的压缩机故障或保护恢复后，再次启动压缩机时，优先开启以前出现过故障或保护的空调对应的压缩机。其中，空调故障和保护包括但不限于：高压保护、低压保护、压缩机过载保护(压缩机内部保护与外置过流保护为串联)、相序保护、风机过载保护、排气高温保护、各种感温包故障、防冻结保护、防过热保护和水流开关保护等等。
此外，一些实施例中，上述方法还包括：在制热模式下，若一个或多台台空调满足化霜条件，控制满足化霜条件的空调进入化霜模式；其中，控制同时进入化霜模式的空调数量不超过制热运行的空调总数的预设比例。
具体的，当多台(比如16台)空调组合成一个整体模块化空调系统在制热运行时，由于各空调不是同时开启的，因此其蒸发器结霜情况不同，且可能多台空调同时满足化霜条件，在这种情况下，在满足进入化霜模式的同时，需控制同时进入化霜模式的空调数量不超过制热运行的空调总数的预设比例。其目的是保证系统安全可靠运行，原因是：空调化霜时相当于变为制冷运行，因此，如果同时化霜的空调机组太多，则系统水温下降可能下降到过低，可能会导致水路冻结，进而导致系统发生异常。
所述预设比例比如可以是1/3。例如：假如系统中有15台空调处于制热运行，且8台已经达到化霜条件，则此时同时进入化霜的空调应小于等于15/3＝5台,而其余3台需要在前5台空调化完霜后再进入化霜。
此外，基于相同的发明构思，对应于上述实施例所述的模块化空调系统的控制方法，本申请实施例还提供一种模块化空调系统的控制装置。该装置为用于实现上述实施例的模块化空调系统的控制方法的基于软件和/或硬件的功能模块。
如图5所示，该控制装置包括：第一控制模块51和第二控制模块52
第一控制模块51用于在模块化空调系统初次开机时，控制一个或多个压缩机按照预设启动顺序依次启动，直至达到工况需求。
第二控制模块52用于在模块化空调系统运行过程中，根据当前工况需求，若确定需要调整处于运行状态的压缩机的数量，则控制一个或多个压缩机按照预设启停策略依次启动或停机；其中，所述预设启停策略包括：先停机的压缩机先启动和先启动的压缩机先停机。
在一些实施例中，所述第一控制模块51在控制一个或多个压缩机按照预设的顺序依次启动时，具体用于：
根据预设的时间间隔确定规则，确定启动下一个压缩机所需的启动时间间隔；
在最近启动的压缩机的运行时间达到所述启动时间间隔时，判断是否满足控制下一个压缩机启动的启动条件；
若满足所述启动条件，控制下一个压缩机启动。
在一些实施例中，所述第一控制模块51在根据预设的时间间隔确定规则，确定启动下一个压缩机所需的启动时间间隔时，具体用于：
若当前仅有一个压缩机处于运行状态，则确定启动下一个压缩机所需的启动时间间隔为t s+t 1；
若当前有至少两个压缩机处于运行状态，则按照以下规则确定启动下一个压缩机所需的启动时间间隔：
启动第
Figure PCTCN2022107939-appb-000019
个压缩机与启动第
Figure PCTCN2022107939-appb-000020
个压缩机的启动时间间隔为t s+t 2，启动第
Figure PCTCN2022107939-appb-000021
个压缩机与启动第
Figure PCTCN2022107939-appb-000022
个压缩机的启动时间间隔为t s+t 2+t 3，启动第
Figure PCTCN2022107939-appb-000023
个压缩机与启动第
Figure PCTCN2022107939-appb-000024
个压缩机的启动时间间隔为t s+t 2+2t 3，启动其余压缩机与启动前一个压缩机的启动时间间隔为t s；
其中，n为模块化空调系统包括的压缩机的总数，且计算
Figure PCTCN2022107939-appb-000025
和
Figure PCTCN2022107939-appb-000026
时计算结果统一向上取整或统一向下取整，t s、t 1、t 2和t 3均为预设值。
在一些实施例中，所述第二控制模块52通过如下策略确定是否需要调整处于运行状态的压缩机的数量：
确定模块化空调系统的系统进水温度和水温温降速率；其中，所述系统进水温度 为基于所有处于运行状态的空调的进水温度计算得到，所述水温温降速率为基于当前时刻的系统进水温度和前一时刻的系统进水温度计算得到；
基于所述系统进水温度和水温温降速率，判断是否需要调整处于运行状态的压缩机的数量。
在一些实施例中，所述第二控制模块52在基于所述系统进水温度和水温温降速率，判断是否需要调整处于运行状态的压缩机的数量时，具体用于：
若T in≥T c+T 1且△T t≤△T t1，则确定对压缩机的控制策略为控制一个或多个压缩机依次启动；
若T in≥T c+T 1且△T t>△T t1，则确定对压缩机的控制策略为维持已开启的压缩机的数量不变；
若T c+T 1>T in>T c+T 2且△T t>△T t1，则确定对压缩机的控制策略为控制一个或多个压缩机依次停机；
若T c+T 1>T in>T c+T 2且△T t2≤△T t≤△T t1，则确定对压缩机的控制策略为维持已开启的压缩机的数量不变；
若T c+T 1>T in>T c+T 2且△T t<△T t2，则确定对压缩机的控制策略为控制一个或多个压缩机依次启动；
若T c-T 3≤T in≤T c+T 2，则确定对压缩机的控制策略为维持已开启的压缩机的数量不变；
若T in<T c-T 3，则确定对压缩机的控制策略为控制一个或多个压缩机依次停机；
其中，T in为所述系统进水温度，T c为进水温度设定值，T 1为预设的第一温度修正值，T 2为预设的第二温度修正值，T 3为预设的第三温度修正值，△T t为所述水温温降速率，△T t1为预设的第一温降速率，△T t2为预设的第二温降速率。
在一些实施例中，所述第二控制模块52在控制一个或多个压缩机按照预设启停策略停机时，具体用于：
每间隔第一停机时间间隔或每间隔第二停机时间间隔依次控制一个或多个压缩机停机。
在一些实施例中，若T c-T 4<T in<T c-T 3，则控制一个或多个压缩机停机的时间间隔为所述第一停机时间间隔，若T in≤T c-T 4，控制一个或多个压缩机停机的时间间隔为所述第二停机时间间隔；其中所述第一停机时间间隔大于所述第二停机时间间隔，T 4为预设的第四温度修正值。
在一些实施例中，所述第一控制模块51还还用于：
在控制每台空调的第一个压缩机启动前，控制对应的空调的风机启动，并在对应的风机运行预设时间后，控制对应的空调的第一个压缩机启动。
在一些实施例中，所述第一控制模块51或第二控制模块52还用于：
获取关机指令；所述关机指令包括手动关机指令和定时关机指令；
根据所述关机指令，每间隔第三停机时间间隔控制所有开启的压缩机依次停机。
在一些实施例中，所述第一控制模块51或第二控制模块52还用于：
在制热模式下，若一个或多台台空调满足化霜条件，控制满足化霜条件的空调进入化霜模式；其中，控制同时进入化霜模式的空调数量不超过制热运行的空调总数的预设比例。
上述各功能模块所实现的各个步骤的具体实现方式可参照前述方法实施例的对应内容，此处不再详述。
此外，基于相同的发明构思，对应于上述实施例所述的模块化空调系统的控制方法，本申请实施例还提供一种模块化空调系统的控制器。该控制器即为图1中所示出的集中控制器。
如图6所示，一种模块化空调系统的控制器包括：
存储器61和与存储器61相连接的处理器62；
存储器61，用于存储程序，所述程序被所述处理器执行时使所述处理器实现前述任一方法实施例所述的模块化空调系统的控制方法。
上述程序所实现的各个步骤的具体实现方式可参照前述方法实施例的对应内容，此处不再详述。且将该控制器应用于前述的模块化空调系统后，即可实现对应的控制方案。
通过上述控制方案，可实现对系统的各个压缩机的启停状态进行控制，应用该方案后可以实现任意冷量的空调系统的模块化安装和模块化控制，从而使模块化空调系统达到最优的控制策略，保证在任意冷量负荷下，空调系统都能达到最佳的运行状态。
本申请还提供一种模块化空调系统，下面结合图7进行描述。
如图7所示，一种模块化空调系统包括前述任意实施例的模块化空调系统的控制器72，还包括通过有线或无线方式依次通讯连接至所述模块化空调系统的控制器72的多台空调74；其中，每台空调包括至少一个压缩机。
可以理解的是，上述各实施例中相同或相似部分可以相互参考，在一些实施例中 未详细说明的内容可以参见其他实施例中相同或相似的内容。
需要说明的是，在本申请的描述中，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。此外，在本申请的描述中，除非另有说明，“多个”的含义是指至少两个。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本申请的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本申请的实施例所属技术领域的技术人员所理解。
应当理解，本申请的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本申请各个实施例中的各功能单元可以集成在一个处理模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例 性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (15)

  1. 一种模块化空调系统的控制方法，其中，所述模块化空调系统包括多台空调，每台空调包括至少一个压缩机，所述方法包括：
    在所述模块化空调系统初次开机时，控制一个或多个压缩机按照预设启动顺序依次启动，直至达到工况需求；
    在所述模块化空调系统运行过程中，根据当前工况需求，若确定需要调整处于运行状态的压缩机的数量，则控制一个或多个压缩机按照预设启停策略依次启动或停机；其中，所述预设启停策略包括：先停机的压缩机先启动和先启动的压缩机先停机。
  2. 根据权利要求1所述的控制方法，其中，所述控制一个或多个压缩机按照预设的顺序依次启动，包括：
    根据预设的时间间隔确定规则，确定启动下一个压缩机所需的启动时间间隔；
    在最近启动的压缩机的运行时间达到所述启动时间间隔时，判断是否满足控制下一个压缩机启动的启动条件；
    若满足所述启动条件，控制下一个压缩机启动。
  3. 根据权利要求2所述的方法，其中，所述根据预设的时间间隔确定规则，确定启动下一个压缩机所需的启动时间间隔，包括：
    若当前仅有一个压缩机处于运行状态，则确定启动下一个压缩机所需的启动时间间隔为t s+t 1；
    若当前有至少两个压缩机处于运行状态，则按照以下规则确定启动下一个压缩机所需的启动时间间隔：
    启动第
    Figure PCTCN2022107939-appb-100001
    个压缩机与启动第
    Figure PCTCN2022107939-appb-100002
    个压缩机的启动时间间隔为t s+t 2，启动第
    Figure PCTCN2022107939-appb-100003
    个压缩机与启动第
    Figure PCTCN2022107939-appb-100004
    个压缩机的启动时间间隔为t s+t 2+t 3，启动第
    Figure PCTCN2022107939-appb-100005
    个压缩机与启动第
    Figure PCTCN2022107939-appb-100006
    个压缩机的启动时间间隔为t s+t 2+2t 3，启动其余压缩机与启动前一个压缩机的启动时间间隔为t s；
    其中，n为所述模块化空调系统包括的压缩机的总数，且计算
    Figure PCTCN2022107939-appb-100007
    和
    Figure PCTCN2022107939-appb-100008
    时计算结果统一向上取整或统一向下取整，t s、t 1、t 2和t 3均为预设值。
  4. 根据权利要求1所述的方法，其中，通过如下策略确定是否需要调整处于运行 状态的压缩机的数量：
    确定所述模块化空调系统的系统进水温度和水温温降速率；其中，所述系统进水温度为基于所有处于运行状态的空调的进水温度计算得到，所述水温温降速率为基于当前时刻的系统进水温度和前一时刻的系统进水温度计算得到；
    基于所述系统进水温度和水温温降速率，判断是否需要调整处于运行状态的压缩机的数量。
  5. 根据权利要求4所述的方法，其中，所述基于所述系统进水温度和水温温降速率，判断是否需要调整处于运行状态的压缩机的数量，包括：
    若T in≥T c+T 1且△T t≤△T t1，则确定需要增加处于运行状态的压缩机的数量；
    若T in≥T c+T 1且△T t>△T t1，则确定无需调整处于运行状态的压缩机的数量；
    若T c+T 1>T in>T c+T 2且△T t>△T t1，则确定需要减少处于运行状态的压缩机的数量；
    若T c+T 1>T in>T c+T 2且△T t2≤△T t≤△T t1，则确定无需调整处于运行状态的压缩机的数量；
    若T c+T 1>T in>T c+T 2且△T t<△T t2，则确定需要增加处于运行状态的压缩机的数量；
    若T c-T 3≤T in≤T c+T 2，则确定无需调整处于运行状态的压缩机的数量；
    若T in<T c-T 3，则确定需要减少处于运行状态的压缩机的数量；
    其中，T in为所述系统进水温度，T c为进水温度设定值，T 1为预设的第一温度修正值，T 2为预设的第二温度修正值，T 3为预设的第三温度修正值，△T t为所述水温温降速率，△T t1为预设的第一温降速率，△T t2为预设的第二温降速率。
  6. 根据权利要求5所述的方法，其中，所述控制一个或多个压缩机按照预设启停策略停机，包括：
    每间隔第一停机时间间隔或每间隔第二停机时间间隔依次控制一个或多个压缩机停机。
  7. 根据权利要求6所述的方法，其中，若T c-T 4<T in<T c-T 3，则控制一个或多个压缩机停机的时间间隔为所述第一停机时间间隔，若T in≤T c-T 4，控制一个或多个压缩机停机的时间间隔为所述第二停机时间间隔；其中，所述第一停机时间间隔大于所述第二停机时间间隔，T 4为预设的第四温度修正值。
  8. 根据权利要求1所述的方法，其中，
    在控制每台空调的第一个压缩机启动前，控制所述每台空调的风机启动，并在所述每台空调的风机运行预设时间后，控制所述每台空调的第一个压缩机启动。
  9. 根据权利要求1所述的方法，其中，所述预设启动顺序包括：预设的每台空调中的主板的地址顺序。
  10. 根据权利要求1所述的方法，其中，还包括：
    在所述模块化空调系统运行过程中，获取关机指令，其中，所述关机指令包括手动关机指令和定时关机指令；
    根据所述关机指令，每间隔第三停机时间间隔控制所有开启的压缩机依次停机。
  11. 根据权利要求1所述的方法，其中，还包括：
    在制热模式下，若一个或多台台空调满足化霜条件，控制满足化霜条件的空调进入化霜模式；其中，控制同时进入化霜模式的空调数量不超过制热运行的空调总数的预设比例。
  12. 一种模块化空调系统的控制装置，其中，所述模块化空调系统包括多台空调，每台空调包括至少一个压缩机，所述装置包括：
    第一控制模块，用于在所述模块化空调系统初次开机时，控制一个或多个压缩机按照预设启动顺序依次启动，直至达到工况需求；
    第二控制模块，用于在所述模块化空调系统运行过程中，根据当前工况需求，若确定需要调整处于运行状态的压缩机的数量，则控制一个或多个压缩机按照预设启停策略依次启动或停机；其中，所述预设启停策略包括：先停机的压缩机先启动和先启动的压缩机先停机。
  13. 一种模块化空调系统的控制器，其中，包括：
    存储器和与所述存储器相连接的处理器；
    所述存储器，用于存储程序，所述程序被所述处理器执行时使所述处理器实现如权利要求1-11任一项所述的模块化空调系统的控制方法。
  14. 一种模块化空调系统，其中，包括权利要求13所述的模块化空调系统的控制器，还包括通过有线或无线方式依次通讯连接至所述模块化空调系统的控制器的多台空调；其中，每台空调包括至少一个压缩机。
  15. 一种非瞬时性计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现权利要求1-11任一项所述方法的步骤。
PCT/CN2022/107939 2021-11-15 2022-07-26 模块化空调系统的控制方法、装置、控制器和空调系统 WO2023082707A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111345688.3A CN114135988A (zh) 2021-11-15 2021-11-15 模块化空调系统的控制方法、装置、控制器和空调系统
CN202111345688.3 2021-11-15

Publications (1)

Publication Number Publication Date
WO2023082707A1 true WO2023082707A1 (zh) 2023-05-19

Family

ID=80393923

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/107939 WO2023082707A1 (zh) 2021-11-15 2022-07-26 模块化空调系统的控制方法、装置、控制器和空调系统

Country Status (2)

Country Link
CN (1) CN114135988A (zh)
WO (1) WO2023082707A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114135988A (zh) * 2021-11-15 2022-03-04 珠海格力电器股份有限公司 模块化空调系统的控制方法、装置、控制器和空调系统
CN115682303A (zh) * 2022-11-07 2023-02-03 珠海格力电器股份有限公司 多模块空调系统及其控制方法、存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004205143A (ja) * 2002-12-26 2004-07-22 Fujitsu General Ltd マルチ型空気調和機の制御システム
CN102003748A (zh) * 2009-09-01 2011-04-06 珠海格力电器股份有限公司 模块化冷水机组及其智能控制方法
CN112254308A (zh) * 2020-10-22 2021-01-22 珠海格力电器股份有限公司 模块化空调机组及其压缩机控制方法
CN114135988A (zh) * 2021-11-15 2022-03-04 珠海格力电器股份有限公司 模块化空调系统的控制方法、装置、控制器和空调系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004101012A (ja) * 2002-09-06 2004-04-02 Fujitsu General Ltd 多室形空気調和機の制御方法
KR101253231B1 (ko) * 2005-10-21 2013-04-16 삼성전자주식회사 멀티형 공기조화기의 제어방법
CN102252399A (zh) * 2011-05-13 2011-11-23 珠海铨高机电设备有限公司 模块化冷/热水机组压缩机能调控制方法
CN110500713B (zh) * 2019-08-22 2020-12-22 珠海格力电器股份有限公司 保证连续制热的化霜控制方法、装置及多联机系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004205143A (ja) * 2002-12-26 2004-07-22 Fujitsu General Ltd マルチ型空気調和機の制御システム
CN102003748A (zh) * 2009-09-01 2011-04-06 珠海格力电器股份有限公司 模块化冷水机组及其智能控制方法
CN112254308A (zh) * 2020-10-22 2021-01-22 珠海格力电器股份有限公司 模块化空调机组及其压缩机控制方法
CN114135988A (zh) * 2021-11-15 2022-03-04 珠海格力电器股份有限公司 模块化空调系统的控制方法、装置、控制器和空调系统

Also Published As

Publication number Publication date
CN114135988A (zh) 2022-03-04

Similar Documents

Publication Publication Date Title
WO2023082707A1 (zh) 模块化空调系统的控制方法、装置、控制器和空调系统
CN107810373B (zh) 针对可变容量压缩机控制系统的诊断和方法
JP2021081179A5 (zh)
CN103940052B (zh) 空调器及其故障检测方法
WO2020238298A1 (zh) 一种空调器低温制热启动控制方法和空调器
US20160305702A1 (en) Heat pump system and operation method therefor
JP2014508274A5 (zh)
EP1980797B1 (en) Outdoor unit for air conditioner and method of controlling the same
CN203286652U (zh) 空调器
CN104990211A (zh) 多机头变频离心式中央空调机组的控制方法
CN111207485B (zh) 一种防冻结控制方法、装置、存储介质及水多联系统
KR20140108576A (ko) 열원 시스템 및 그 제어 장치 및 그 제어 방법
JPS60181531A (ja) ヒ−トポンプ式空気調和機の除霜運転制御方法
JP2007255759A (ja) 空気調和装置
CN114110953A (zh) 空调器自清洁控制方法、空调器和计算机存储介质
CN115095955A (zh) 空调器和空调器除霜控制方法
JP6022291B2 (ja) 空気調和機
CN114151929A (zh) 热泵空调机组及其防冻结控制方法、装置和存储介质
WO2023221664A1 (zh) 多联机空调系统的控制方法、控制装置和多联机空调系统
CN110017580B (zh) 风机盘管与冷热源设备模式互锁控制方法、装置及空调器
JPH0260942B2 (zh)
CN113959069A (zh) 空调系统
JP3526393B2 (ja) 空気調和機
EP3447405B1 (en) Air-conditioning device
JP2006207983A (ja) 空気調和機

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22891516

Country of ref document: EP

Kind code of ref document: A1