WO2023015874A1 - Central air conditioning control system - Google Patents

Central air conditioning control system Download PDF

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Publication number
WO2023015874A1
WO2023015874A1 PCT/CN2022/079610 CN2022079610W WO2023015874A1 WO 2023015874 A1 WO2023015874 A1 WO 2023015874A1 CN 2022079610 W CN2022079610 W CN 2022079610W WO 2023015874 A1 WO2023015874 A1 WO 2023015874A1
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WIPO (PCT)
Prior art keywords
air
conditioning unit
unit
conditioning
state
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PCT/CN2022/079610
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French (fr)
Chinese (zh)
Inventor
徐磊
孙照鹏
曹基宏
Original Assignee
青岛海信日立空调***有限公司
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Priority to CN202280026636.6A priority Critical patent/CN117098953A/en
Publication of WO2023015874A1 publication Critical patent/WO2023015874A1/en

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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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present disclosure relates to the technical field of central air-conditioning control, in particular to a central air-conditioning control system.
  • the application scenarios of central air conditioners are becoming more and more extensive, such as computer rooms, storage, offices and other places.
  • the central air-conditioning system includes multiple indoor units. In order to ensure a stable indoor air environment, the indoor units must run for a long time.
  • the central air-conditioning control system includes at least one outdoor unit, at least two indoor units and a centralized controller. At least two indoor units communicate with each outdoor unit through a communication bus, and one indoor unit and a corresponding outdoor unit form an air-conditioning unit; the centralized controller is connected to the communication bus, and can obtain the on-off status and operating status of each air-conditioning unit The centralized controller configures the operation rotation time of each air-conditioning unit and the rotation relationship of each air-conditioning unit; the centralized controller controls the operation status of each air-conditioning unit according to the operation rotation time, on-off status and rotation relationship.
  • FIG. 1 is a functional block diagram of a central air-conditioning control system provided by some embodiments of the present disclosure
  • Fig. 2 is a kind of flowchart of each air-conditioning unit running state in the central air-conditioning control system provided by some embodiments of the present disclosure
  • Fig. 3 is another flow chart of the operating status of each air-conditioning unit in the central air-conditioning control system provided by some embodiments of the present disclosure.
  • the refrigeration cycle system of an air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator.
  • the refrigeration cycle process involves compression, condensation, expansion and evaporation, and the supply of refrigerant to the air being conditioned and heat exchanged.
  • the compressor compresses refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas.
  • the discharged refrigerant gas flows into the condenser.
  • the condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.
  • the expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant.
  • the evaporator evaporates the refrigerant expanded in the expansion valve, and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor.
  • the evaporator can realize the cooling effect by using the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled.
  • the air conditioner regulates the temperature of the interior space.
  • the outdoor unit of the air conditioner includes the part of the compressor in the refrigeration cycle system and the outdoor heat exchanger; the indoor unit of the air conditioner includes the indoor heat exchanger; the expansion valve can be set in the indoor unit or the outdoor unit of the air conditioner.
  • the indoor heat exchanger and the outdoor heat exchanger are used as condensers or evaporators.
  • the air conditioner is used as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in cooling mode.
  • the central air-conditioning control system of the present disclosure includes at least one outdoor unit, at least two indoor units and a centralized controller.
  • the central air-conditioning control system of the present disclosure has at least two air-conditioning units.
  • Fig. 1 it only shows one outdoor unit, and the outdoor unit is communicatively connected with at least one indoor unit (indoor unit 1, indoor unit 2, . . . , outdoor unit n (n ⁇ 1)) through a communication bus.
  • indoor unit indoor unit 1, indoor unit 2, . . . , outdoor unit n (n ⁇ 1)
  • the centralized controller is connected to the communication bus, and can obtain the on-off status and the running status of each air-conditioning unit (ie, each outdoor unit and each indoor unit).
  • the power-on state includes the power-on state and the power-off state;
  • the running state includes the running parameters in the power-on state and the memorized running parameters in the power-off state.
  • the centralized controller can manage multiple air-conditioning units, and in order to realize the rotation operation of each air-conditioning unit, configure the operation rotation time T and the rotation relationship between each air-conditioning unit.
  • the rotation relationship refers to the relationship between the current air conditioner a and the air conditioner b to be rotated, that is, when the current air conditioner a needs to be rotated, the air conditioner b is selected for rotation.
  • the centralized controller controls the operation status of each air conditioning unit according to the operation rotation time T, on/off status and rotation relationship.
  • At least two air conditioning units form a set S of air conditioning units.
  • the air conditioner set S may include: air conditioner A', air conditioner B', air conditioner C', . . . ; each air conditioner has a rotation relationship.
  • FIG. 2 shows a flow chart of the operating states of each air-conditioning unit in the central air-conditioning control system.
  • S21 The centralized controller issues a query command to query the on/off status of one air-conditioning unit A.
  • the air-conditioning unit A is any air-conditioning unit in the set S of air-conditioning units.
  • the centralized controller may issue the query command at intervals (for example, 2 minutes).
  • S22 Judging the on/off state of the air conditioning unit A, and judging whether it has reached the operation rotation time T, if the on/off state of the air conditioning unit A is on or off, and has not reached the operation rotation time T, proceed to S23; if When the on/off state of the air conditioning unit A is on and the operation rotation time T has been reached, proceed to S24; if the on/off state of the air conditioning unit A is off and the operation rotation time T has been reached, proceed to S25.
  • the centralized controller controls whether to rotate or not, and which air conditioning unit to switch to, is determined by the rotation relationship of each air conditioning unit.
  • the air conditioning unit A If the on/off state of the air conditioning unit A is on and the operation rotation time T has not been reached, the air conditioning unit A is not rotated, and the existing operating status of each air conditioning unit is maintained, for example, the air conditioning unit A is kept in the on state.
  • the air conditioning unit A If the on/off state of the air conditioning unit A is off and has not reached the operation rotation time T, maintain the existing operating status of each air conditioning unit. For example, the air conditioning unit A remains in the off state. Of course, it can also be changed through manual intervention. The running status of an air conditioning unit B.
  • S24 Alternate the air-conditioning unit A, and control the air-conditioning unit A to shut down.
  • the operating status of the air conditioner unit A is sent to the air conditioner unit B to be rotated.
  • the central controller controls the operation of air conditioning unit B and updates the operating status of air conditioning unit B, and at the same time the centralized controller sends a shutdown command to air conditioning unit A to control the shutdown of air conditioning unit A.
  • the air-conditioning unit B here is any air-conditioning unit in the set S of air-conditioning units that has a rotation relationship with the air-conditioning unit A.
  • the operating status of the air conditioner unit A is sent to the air conditioner unit B that has a rotation relationship with the air conditioner unit A.
  • the air-conditioning unit B here is any air-conditioning unit in the set S of air-conditioning units that has a rotation relationship with the air-conditioning unit A.
  • the above-mentioned central air-conditioning control system realizes the rotation operation of each air-conditioning unit through the operation rotation time T, switch status and rotation relationship, while ensuring the indoor environment, reduces the energy consumption of the central air-conditioning system, and at the same time improves User experience.
  • the above-mentioned air-conditioning unit may have a problem that it is turned on but fails, or the air-conditioning unit to be replaced may have a failure, and the indoor environment may be affected at this time.
  • the centralized controller can obtain the fault status of the air conditioning unit.
  • the fault state of the air conditioning unit may be represented by a fault flag bit, and by identifying the fault flag bit, it is identified whether the air conditioning unit is faulty.
  • the failure flag of the air-conditioning unit can be set to 1, and when the air-conditioning unit has no failure, the failure flag of the air-conditioning unit can be set to 0.
  • the centralized controller controls the operation status of each air conditioning unit according to the operation rotation time T, on/off status, rotation relationship and fault status.
  • FIG. 3 shows a flowchart of the operation of each air-conditioning unit in the central air-conditioning control system.
  • the centralized controller will set the rotation priority of each air conditioning unit.
  • the air conditioner set S includes: air conditioner A', air conditioner B' and air conditioner C'.
  • the centralized controller will set the rotation priority of air conditioning unit A', air conditioning unit B' and air conditioning unit C', and the rotation priority of air conditioning unit A', air conditioning unit B' and air conditioning unit C' will decrease in turn.
  • the air conditioner unit B' when the air conditioner unit A' needs to be rotated (for example, when the operation rotation time T is reached, or the air conditioner unit A' is faulty), the air conditioner unit B' should be rotated first, and if the air conditioner unit B' is faulty, the air conditioner unit B' should be rotated C'.
  • the air conditioner unit A' can be used as the main equipment, while the remaining air conditioner units are emergency equipment, and the rotation priority of the air conditioner unit A' is the highest.
  • the air-conditioning unit A' is any air-conditioning unit in the air-conditioning unit set S; and the rotation priority of the air-conditioning unit A' should be higher than that of other air-conditioning units to which the air-conditioning unit A' is to be rotated .
  • S31 The centralized controller issues a query command to query the on/off status of one air-conditioning unit A.
  • the air-conditioning unit A is any air-conditioning unit in the set S of air-conditioning units.
  • the centralized controller may issue the query command at intervals (for example, 2 minutes).
  • S32 Judging the on/off state, fault state and operation rotation time T of the air conditioning unit A, if the on/off state of the air conditioning unit A is the on state, the fault state of the air conditioning unit A has not been obtained, and the operation rotation time T has not been reached , or if the on/off state of the air conditioning unit A is the off state and has not reached the operation rotation time T, proceed to S33; When the operation rotation time T has been reached, or the on/off state of the air conditioning unit A is on and the fault state of the air conditioning unit A is obtained, proceed to S34; if the on/off state of the air conditioning unit A is off and has reached the Said operation alternate time, proceed to S35.
  • the centralized controller controls whether to rotate according to the on-off status, fault status and operation rotation time T of the air-conditioning units, and which air-conditioning unit to rotate to is determined by the rotation relationship and fault status of each air-conditioning unit.
  • the air conditioner unit A is not rotated, that is, the current operating state of the air conditioner unit A is maintained, and the other air conditioner units maintain the current operating state.
  • the air-conditioning unit to be rotated is fault-free when the air-conditioning unit A satisfies the rotation conditions (for example, when the air-conditioning unit A is in the shutdown state and the operation rotation time T has been reached), the air-conditioning unit to be rotated is fault-free. Therefore, when the operation rotation time is reached In the time period t before T, first perform fault detection on all air-conditioning units except air-conditioning unit A (here, the set of all air-conditioning units except air-conditioning unit A is called air-conditioning unit set S') to obtain air-conditioning units The fault status of each air conditioning unit in the set S'.
  • the centralized controller sets the rotation priority for each air-conditioning unit in the air-conditioning unit set S, and the rotation priority decreases in turn.
  • the rotation priority of each air-conditioning unit in the air-conditioning unit set S' is lower than that of the air-conditioning unit A, and the rotation priorities of each air-conditioning unit in the air-conditioning unit set S' decrease in turn.
  • S34 Alternate the air conditioning unit A, and control the air conditioning unit A to shut down.
  • the central controller controls the operation of air conditioning unit B and updates the operating status of air conditioning unit B, and at the same time the centralized controller sends a shutdown command to air conditioning unit A to control the shutdown of air conditioning unit A.
  • S35 Alternate the air conditioning unit A, and keep the air conditioning unit A turned off.
  • the centralized controller controls the operation of air conditioning unit B and updates the operating status of air conditioning unit B.
  • the above-mentioned central air-conditioning control system realizes more reliable rotation operation of each air-conditioning unit through the operation rotation time T, switch status, fault status and rotation relationship, and reduces the energy consumption of the central air-conditioning system while ensuring the indoor environment , and at the same time improve the user experience.
  • the operating status is sent, so that the operating parameters of the air-conditioning unit before and after the rotation are kept consistent, which is conducive to ensuring the stability of the indoor environment.

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Abstract

Disclosed is a central air conditioning control system, comprising at least one outdoor unit, at least two indoor units, and a centralized controller. The at least two indoor units communicatively connect to the outdoor units by means of a communication bus; one indoor unit and one corresponding outdoor unit constitute an air conditioning unit; the centralized controller is connected to the communication bus, and can obtain the on-off state and the running state of each air conditioning unit; the centralized controller configures the running rotation time of each air conditioning unit and the rotational relationship of each air conditioning unit; and the centralized collector controls the running state of each air conditioning unit according to the running rotation time, the on-off state and the rotational relationship.

Description

中央空调控制***Central air conditioning control system
相关申请的交叉引用Cross References to Related Applications
本公开要求在2021年08月10日提交中国专利局、申请号为202110914762.2的中国专利申请的优先权，其全部内容通过引用结合在本公开中。This disclosure claims the priority of the Chinese patent application with application number 202110914762.2 filed with China Patent Office on August 10, 2021, the entire contents of which are incorporated by reference in this disclosure.
技术领域technical field
本公开涉及中央空调控制技术领域，尤其涉及一种中央空调控制***。The present disclosure relates to the technical field of central air-conditioning control, in particular to a central air-conditioning control system.
背景技术Background technique
中央空调的应用场景越来越广泛，如机房、仓储、办公等场所。中央空调***包括多台室内机，为了保证室内空气环境稳定，室内机必须长期运行。The application scenarios of central air conditioners are becoming more and more extensive, such as computer rooms, storage, offices and other places. The central air-conditioning system includes multiple indoor units. In order to ensure a stable indoor air environment, the indoor units must run for a long time.
发明内容Contents of the invention
本公开一些实施例提供了一种中央空调控制***，所述中央空调控制***包括至少一个室外机、至少两个室内机和集控器。至少两个室内机通过通信总线与各室外机通信连接，一个室内机和对应的一个室外机构成空调机组；集控器与所述通信总线连接，能够获取各空调机组的开关机状态及运行状态；所述集控器配置各空调机组的运转轮换时间及各空调机组的轮换关系；所述集控器根据所述运转轮换时间、开关机状态和轮换关系，控制各空调机组的运行状态。Some embodiments of the present disclosure provide a central air-conditioning control system, and the central air-conditioning control system includes at least one outdoor unit, at least two indoor units and a centralized controller. At least two indoor units communicate with each outdoor unit through a communication bus, and one indoor unit and a corresponding outdoor unit form an air-conditioning unit; the centralized controller is connected to the communication bus, and can obtain the on-off status and operating status of each air-conditioning unit The centralized controller configures the operation rotation time of each air-conditioning unit and the rotation relationship of each air-conditioning unit; the centralized controller controls the operation status of each air-conditioning unit according to the operation rotation time, on-off status and rotation relationship.
附图说明Description of drawings
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present disclosure. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.
图1为本公开一些实施例提供的中央空调控制***的原理框图；FIG. 1 is a functional block diagram of a central air-conditioning control system provided by some embodiments of the present disclosure;
图2为本公开一些实施例提供的中央空调控制***中各空调机组运行状 态的一种流程图；Fig. 2 is a kind of flowchart of each air-conditioning unit running state in the central air-conditioning control system provided by some embodiments of the present disclosure;
图3为本公开一些实施例提供的中央空调控制***中各空调机组运行状态的另一种流程图。Fig. 3 is another flow chart of the operating status of each air-conditioning unit in the central air-conditioning control system provided by some embodiments of the present disclosure.
具体实施方式Detailed ways
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them.
[空调的基本运行原理][Basic operating principle of air conditioner]
空调的制冷循环***包括压缩机、冷凝器、膨胀阀和蒸发器。制冷循环过程涉及压缩、冷凝、膨胀和蒸发，以及向被调节和热交换的空气供应制冷剂。The refrigeration cycle system of an air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle process involves compression, condensation, expansion and evaporation, and the supply of refrigerant to the air being conditioned and heat exchanged.
压缩机压缩处于高温高压状态的制冷剂气体并排出压缩后的制冷剂气体。所排出的制冷剂气体流入冷凝器。冷凝器将压缩后的制冷剂冷凝成液相，并且热量通过冷凝过程释放到周围环境。The compressor compresses refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.
膨胀阀使在冷凝器中冷凝的高温高压状态的液相制冷剂膨胀为低压的液相制冷剂。The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant.
蒸发器蒸发在膨胀阀中膨胀的制冷剂，并使处于低温低压状态的制冷剂气体返回到压缩机。The evaporator evaporates the refrigerant expanded in the expansion valve, and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor.
蒸发器可以通过利用制冷剂的蒸发的潜热与待冷却的材料进行热交换来实现制冷效果。在整个循环中，空调可以调节室内空间的温度。The evaporator can realize the cooling effect by using the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. Throughout the cycle, the air conditioner regulates the temperature of the interior space.
空调室外机包括制冷循环***中压缩机的部分以及室外热交换器；空调室内机包括室内热交换器；膨胀阀可以设置在空调室内机或室外机中。The outdoor unit of the air conditioner includes the part of the compressor in the refrigeration cycle system and the outdoor heat exchanger; the indoor unit of the air conditioner includes the indoor heat exchanger; the expansion valve can be set in the indoor unit or the outdoor unit of the air conditioner.
室内热交换器和室外热交换器用作冷凝器或蒸发器。当室内热交换器用作冷凝器时，空调在制热模式下用作加热器；当室内热交换器用作蒸发器时，空调在制冷模式下用作冷却器。The indoor heat exchanger and the outdoor heat exchanger are used as condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in cooling mode.
[中央空调控制***][Central air conditioning control system]
本公开的中央空调控制***包括至少一个室外机、至少两个室内机和集控器。The central air-conditioning control system of the present disclosure includes at least one outdoor unit, at least two indoor units and a centralized controller.
一个室内机和对应的一个室外机构成一个空调机组，因此，本公开的中央空调控制***具有至少两个空调机组。An indoor unit and a corresponding outdoor unit form an air-conditioning unit. Therefore, the central air-conditioning control system of the present disclosure has at least two air-conditioning units.
参见图1，其仅示出一个室外机，室外机与至少一个室内机(室内机1、室内机2、......、室外机n(n≥1))通过通信总线通信连接。Referring to Fig. 1, it only shows one outdoor unit, and the outdoor unit is communicatively connected with at least one indoor unit (indoor unit 1, indoor unit 2, . . . , outdoor unit n (n≥1)) through a communication bus.
集控器连接在通信总线上，能够获取各空调机组(即，各室外机及各室内机)的开关机状态及运行状态。The centralized controller is connected to the communication bus, and can obtain the on-off status and the running status of each air-conditioning unit (ie, each outdoor unit and each indoor unit).
其中开关机状态包括开机状态和关机状态；运行状态包括开机状态下的运行参数和关机状态下所记忆的运行参数。The power-on state includes the power-on state and the power-off state; the running state includes the running parameters in the power-on state and the memorized running parameters in the power-off state.
集控器能够对多个空调机组进行管理，且为了实现各空调机组轮换运行，配置运转轮换时间T和各空调机组之间的轮换关系。The centralized controller can manage multiple air-conditioning units, and in order to realize the rotation operation of each air-conditioning unit, configure the operation rotation time T and the rotation relationship between each air-conditioning unit.
其中，轮换关系指的是当前空调机组a与待轮换的空调机组b之间的关系，即，在当前空调a需要轮换时，选择空调机组b轮换。Wherein, the rotation relationship refers to the relationship between the current air conditioner a and the air conditioner b to be rotated, that is, when the current air conditioner a needs to be rotated, the air conditioner b is selected for rotation.
集控器根据运转轮换时间T、开关机状态和轮换关系，控制各空调机组的运行状态。The centralized controller controls the operation status of each air conditioning unit according to the operation rotation time T, on/off status and rotation relationship.
如下将具体描述各空调机组的运行过程。The operation process of each air conditioning unit will be described in detail as follows.
[空调机组轮换I][AC Unit Rotation I]
至少两个空调机组形成空调机组集合S。At least two air conditioning units form a set S of air conditioning units.
该空调机组集合S可以包括：空调机组A'、空调机组B'、空调机组C'、......；各空调机组具有轮换关系。The air conditioner set S may include: air conditioner A', air conditioner B', air conditioner C', . . . ; each air conditioner has a rotation relationship.
参考图2，其示出了中央空调控制***中各空调机组运行状态的流程图。Referring to FIG. 2 , it shows a flow chart of the operating states of each air-conditioning unit in the central air-conditioning control system.
S21：集控器下发查询指令，查询其中一个空调机组A的开关机状态。S21: The centralized controller issues a query command to query the on/off status of one air-conditioning unit A.
此空调机组A为空调机组集合S中的任一空调机组。The air-conditioning unit A is any air-conditioning unit in the set S of air-conditioning units.
集控器可以每隔一段时间(例如2分钟)下发该查询指令。The centralized controller may issue the query command at intervals (for example, 2 minutes).
S22：判断该空调机组A的开关机状态，并判断是否达到运转轮换时间T， 若空调机组A的开关机状态是开机状态或关机状态、且未达到运转轮换时间T时，进行到S23；若空调机组A的开关机状态是开机状态、且已达到运转轮换时间T时，进行到S24；若空调机组A的开关机状态为关机状态、且已达到运转轮换时间T时，进行到S25。S22: Judging the on/off state of the air conditioning unit A, and judging whether it has reached the operation rotation time T, if the on/off state of the air conditioning unit A is on or off, and has not reached the operation rotation time T, proceed to S23; if When the on/off state of the air conditioning unit A is on and the operation rotation time T has been reached, proceed to S24; if the on/off state of the air conditioning unit A is off and the operation rotation time T has been reached, proceed to S25.
集控器根据空调机组的开关机状态和运转轮换时间T，控制是否轮换，置于轮换到哪个空调机组，通过各空调机组的轮换关系决定。According to the on/off state of the air conditioning unit and the operation rotation time T, the centralized controller controls whether to rotate or not, and which air conditioning unit to switch to, is determined by the rotation relationship of each air conditioning unit.
S23：不对空调机组A进行轮换。S23: The air conditioner unit A is not rotated.
即，保持当前空调机组A的运行状态。That is, the current operating state of the air conditioning unit A is maintained.
若空调机组A的开关机状态是开机状态、且未达到运转轮换时间T时，不对空调机组A进行轮换，保持各空调机组的现有运行状态，例如保持空调机组A开机状态。If the on/off state of the air conditioning unit A is on and the operation rotation time T has not been reached, the air conditioning unit A is not rotated, and the existing operating status of each air conditioning unit is maintained, for example, the air conditioning unit A is kept in the on state.
若空调机组A的开关机状态为关机状态、且未达到运转轮换时间T时，保持各空调机组的现有运行状态，例如，空调机组A保持关机状态，当然，也可以通过人工干预的方式改变某空调机组B的运行状态。If the on/off state of the air conditioning unit A is off and has not reached the operation rotation time T, maintain the existing operating status of each air conditioning unit. For example, the air conditioning unit A remains in the off state. Of course, it can also be changed through manual intervention. The running status of an air conditioning unit B.
直到空调机组A的开关机状态为关机状态、且达到运转轮换时间T时，进行到S25。Until the on/off state of the air conditioner unit A is the off state and the operation shift time T is reached, proceed to S25.
S24：对空调机组A进行轮换，且控制空调机组A关机。S24: Alternate the air-conditioning unit A, and control the air-conditioning unit A to shut down.
为了保持室内环境稳定，将空调机组A的运行状态发送至待轮换的空调机组B。In order to keep the indoor environment stable, the operating status of the air conditioner unit A is sent to the air conditioner unit B to be rotated.
此后，集控器控制空调机组B运行并更新空调机组B的运行状态，且同时集控器向空调机组A下发关机指令，控制空调机组A关机。After that, the central controller controls the operation of air conditioning unit B and updates the operating status of air conditioning unit B, and at the same time the centralized controller sends a shutdown command to air conditioning unit A to control the shutdown of air conditioning unit A.
需要说明的是，此处的空调机组B是与空调机组A具有轮换关系的空调机组集合S中任一空调机组。It should be noted that the air-conditioning unit B here is any air-conditioning unit in the set S of air-conditioning units that has a rotation relationship with the air-conditioning unit A.
S25：对空调机组A进行轮换，且保持空调机组A关机。S25: Alternate the air conditioning unit A, and keep the air conditioning unit A turned off.
为了保证室内环境稳定，将空调机组A的运行状态发送至与空调机组A具有轮换关系的空调机组B。In order to ensure a stable indoor environment, the operating status of the air conditioner unit A is sent to the air conditioner unit B that has a rotation relationship with the air conditioner unit A.
且保持空调机组A关机。And keep the air conditioning unit A off.
需要说明的是，此处的空调机组B是与空调机组A具有轮换关系的空调机组集合S中任一空调机组。It should be noted that the air-conditioning unit B here is any air-conditioning unit in the set S of air-conditioning units that has a rotation relationship with the air-conditioning unit A.
如上所述的中央空调控制***，通过运转轮换时间T、开关机状态及轮换关系，实现各空调机组轮换运行，在确保室内环境的同时，降低了中央空调***的能耗，且同时也提高了用户体验度。The above-mentioned central air-conditioning control system realizes the rotation operation of each air-conditioning unit through the operation rotation time T, switch status and rotation relationship, while ensuring the indoor environment, reduces the energy consumption of the central air-conditioning system, and at the same time improves User experience.
[空调机组轮换II][AC Unit Rotation II]
如上所述的空调机组可能会存在处于开机状态下但是出现故障、或者待轮换的空调机组可能存在故障的问题，此时室内环境可能会受到影响。The above-mentioned air-conditioning unit may have a problem that it is turned on but fails, or the air-conditioning unit to be replaced may have a failure, and the indoor environment may be affected at this time.
因此，为了更好地确保室内环境稳定，增加了对空调机组的故障状态的检测。Therefore, in order to better ensure the stability of the indoor environment, the detection of the fault state of the air conditioning unit is added.
在本公开的一些实施例中，集控器能够获取空调机组的故障状态。In some embodiments of the present disclosure, the centralized controller can obtain the fault status of the air conditioning unit.
确保待轮换的空调机组以及当前运行的空调机组是无故障的。Make sure that the AC unit to be rotated as well as the currently operating AC unit are fault-free.
在本公开的一些实施例中，空调机组的故障状态可以通过故障标志位来表示，并通过识别故障标志位来识别空调机组是否出现故障。In some embodiments of the present disclosure, the fault state of the air conditioning unit may be represented by a fault flag bit, and by identifying the fault flag bit, it is identified whether the air conditioning unit is faulty.
可以在空调机组出现故障时，将该空调机组的故障标志设置为1，而在空调机组无故障时，将该空调机组的故障标志设置为0。When the air-conditioning unit fails, the failure flag of the air-conditioning unit can be set to 1, and when the air-conditioning unit has no failure, the failure flag of the air-conditioning unit can be set to 0.
在已出现故障的空调机组的故障清除时，将故障标志位从1更改为0。Change the fault flag bit from 1 to 0 when the fault of the faulty air conditioning unit is cleared.
集控器根据运转轮换时间T、开关机状态、轮换关系及故障状态，控制各空调机组的运行状态。The centralized controller controls the operation status of each air conditioning unit according to the operation rotation time T, on/off status, rotation relationship and fault status.
参见图3，其示出了中央空调控制***中各空调机组运行流程图。Referring to FIG. 3 , it shows a flowchart of the operation of each air-conditioning unit in the central air-conditioning control system.
首先，在本公开的一些实施例中，集控器会设定各空调机组的轮换优先级。First, in some embodiments of the present disclosure, the centralized controller will set the rotation priority of each air conditioning unit.
例如，空调机组集合S中包括：空调机组A'、空调机组B'和空调机组C'。For example, the air conditioner set S includes: air conditioner A', air conditioner B' and air conditioner C'.
集控器会设定空调机组A'、空调机组B'和空调机组C'的轮换优先级，空调调机组A'、空调机组B'和空调机组C'的轮换优先级依次降低。The centralized controller will set the rotation priority of air conditioning unit A', air conditioning unit B' and air conditioning unit C', and the rotation priority of air conditioning unit A', air conditioning unit B' and air conditioning unit C' will decrease in turn.
即，在空调机组A'需要轮换(例如，达到运转轮换时间T，或者空调机组 A'存在故障)时，首先考虑轮换空调机组B'，若空调机组B'存在故障，则再考虑轮换空调机组C'。That is, when the air conditioner unit A' needs to be rotated (for example, when the operation rotation time T is reached, or the air conditioner unit A' is faulty), the air conditioner unit B' should be rotated first, and if the air conditioner unit B' is faulty, the air conditioner unit B' should be rotated C'.
在本公开的一些实施例中，可以将空调机组A'作为主设备，而剩余空调机组为应急设备，且空调机组A'中的轮换优先级为最高级。In some embodiments of the present disclosure, the air conditioner unit A' can be used as the main equipment, while the remaining air conditioner units are emergency equipment, and the rotation priority of the air conditioner unit A' is the highest.
需要说明的是，空调机组A'为空调机组集合S中任一个空调机组；且该空调机组A'的轮换优先级应高于从该空调机组A'所要轮换到的其他空调机组的轮换优先级。It should be noted that the air-conditioning unit A' is any air-conditioning unit in the air-conditioning unit set S; and the rotation priority of the air-conditioning unit A' should be higher than that of other air-conditioning units to which the air-conditioning unit A' is to be rotated .
S31：集控器下发查询指令，查询其中一个空调机组A的开关机状态。S31: The centralized controller issues a query command to query the on/off status of one air-conditioning unit A.
此空调机组A为空调机组集合S中的任一空调机组。The air-conditioning unit A is any air-conditioning unit in the set S of air-conditioning units.
集控器可以每隔一段时间(例如2分钟)下发该查询指令。The centralized controller may issue the query command at intervals (for example, 2 minutes).
S32：判断该空调机组A的开关机状态、故障状态及运转轮换时间T，若空调机组A的开关机状态是开机状态、未获取到空调机组A的故障状态、且未达到运转轮换时间T时，或者若空调机组A的开关机状态为关机状态、且未达到运转轮换时间T时，进行到S33；若空调机组A的开关机状态是开机状态、未获取到空调机组A的故障状态、且已达到运转轮换时间T时，或者空调机组A的开关机状态是开机状态、且获取到空调机组A的故障状态，进行到S34；若空调机组A的开关机状态为关机状态、且已达到所述运转轮换时间，进行到S35。S32: Judging the on/off state, fault state and operation rotation time T of the air conditioning unit A, if the on/off state of the air conditioning unit A is the on state, the fault state of the air conditioning unit A has not been obtained, and the operation rotation time T has not been reached , or if the on/off state of the air conditioning unit A is the off state and has not reached the operation rotation time T, proceed to S33; When the operation rotation time T has been reached, or the on/off state of the air conditioning unit A is on and the fault state of the air conditioning unit A is obtained, proceed to S34; if the on/off state of the air conditioning unit A is off and has reached the Said operation alternate time, proceed to S35.
集控器根据空调机组的开关机状态、故障状态和运转轮换时间T，控制是否轮换，轮换到哪个空调机组是通过各空调机组的轮换关系和故障状态决定。The centralized controller controls whether to rotate according to the on-off status, fault status and operation rotation time T of the air-conditioning units, and which air-conditioning unit to rotate to is determined by the rotation relationship and fault status of each air-conditioning unit.
S33：不对空调机组A进行轮换，且在距离运转轮换时间t时间段的时间点，获取优先级低于空调机组A的所有空调机组的故障状态。S33: Do not rotate the air-conditioning unit A, and acquire the fault status of all air-conditioning units whose priority is lower than that of the air-conditioning unit A at a time point t time period away from the operation rotation time.
不对空调机组A进行轮换，即，保持当前空调机组A的运行状态，其他空调机组保持现有运行状态。The air conditioner unit A is not rotated, that is, the current operating state of the air conditioner unit A is maintained, and the other air conditioner units maintain the current operating state.
为了空调机组A在满足轮换条件(例如，空调机组A的关机状态、且已达到运转轮换时间T时)进行轮换时，能够确保待轮换的空调机组是无故障的， 因此，在到达运转轮换时间T之前的t时间段先对除了空调机组A之外的所有空调机组(此处，除了空调机组A之外的所有空调机组的集合称为空调机组集合S')进行故障检测，以获取空调机组集合S'中各空调机组的故障状态。In order to ensure that the air-conditioning unit to be rotated is fault-free when the air-conditioning unit A satisfies the rotation conditions (for example, when the air-conditioning unit A is in the shutdown state and the operation rotation time T has been reached), the air-conditioning unit to be rotated is fault-free. Therefore, when the operation rotation time is reached In the time period t before T, first perform fault detection on all air-conditioning units except air-conditioning unit A (here, the set of all air-conditioning units except air-conditioning unit A is called air-conditioning unit set S') to obtain air-conditioning units The fault status of each air conditioning unit in the set S'.
如上所述，集控器对空调机组集合S中各空调机组设定轮换优先级，且轮换优先级依次降低。As mentioned above, the centralized controller sets the rotation priority for each air-conditioning unit in the air-conditioning unit set S, and the rotation priority decreases in turn.
因此，该空调机组集合S'中各空调机组的轮换优先级都低于空调机组A的轮换优先级，且空调机组集合S'中各空调机组的轮换优先级依次降低。Therefore, the rotation priority of each air-conditioning unit in the air-conditioning unit set S' is lower than that of the air-conditioning unit A, and the rotation priorities of each air-conditioning unit in the air-conditioning unit set S' decrease in turn.
S34：对空调机组A进行轮换，且控制空调机组A关机。S34: Alternate the air conditioning unit A, and control the air conditioning unit A to shut down.
选择空调机组集合S'中无故障的、且轮换优先级最高的一空调机组B，作为待轮换的空调机组。Select an air-conditioning unit B that is fault-free and has the highest rotation priority in the air-conditioning unit set S' as the air-conditioning unit to be rotated.
将空调机组A的运行状态发送至空调机组B。Send the operating status of air conditioning unit A to air conditioning unit B.
此后，集控器控制空调机组B运行并更新空调机组B的运行状态，且同时集控器向空调机组A下发关机指令，控制空调机组A关机。After that, the central controller controls the operation of air conditioning unit B and updates the operating status of air conditioning unit B, and at the same time the centralized controller sends a shutdown command to air conditioning unit A to control the shutdown of air conditioning unit A.
S35：对空调机组A进行轮换，且保持空调机组A关机。S35: Alternate the air conditioning unit A, and keep the air conditioning unit A turned off.
选择空调机组集合S'中无故障的、且轮换优先级最高的一空调机组B，作为待轮换的空调机组。Select an air-conditioning unit B that is fault-free and has the highest rotation priority in the air-conditioning unit set S' as the air-conditioning unit to be rotated.
将空调机组A的运行状态发送至空调机组B。Send the operating status of air conditioning unit A to air conditioning unit B.
此后，集控器控制空调机组B运行并更新空调机组B的运行状态。Thereafter, the centralized controller controls the operation of air conditioning unit B and updates the operating status of air conditioning unit B.
且保持空调机组A关机。And keep the air conditioning unit A off.
如上所述的中央空调控制***，通过运转轮换时间T、开关机状态、故障状态及轮换关系，实现各空调机组更可靠地轮换运行，在确保室内环境的同时，降低了中央空调***的能耗，且同时也提高了用户体验度。The above-mentioned central air-conditioning control system realizes more reliable rotation operation of each air-conditioning unit through the operation rotation time T, switch status, fault status and rotation relationship, and reduces the energy consumption of the central air-conditioning system while ensuring the indoor environment , and at the same time improve the user experience.
且在空调机组轮换时，进行运行状态的发送，使得在轮换前后空调机组的运行参数保持一致，有利于保证室内环境稳定。In addition, when the air-conditioning unit is rotated, the operating status is sent, so that the operating parameters of the air-conditioning unit before and after the rotation are kept consistent, which is conducive to ensuring the stability of the indoor environment.
以上实施例仅用以说明本公开的技术方案，而非对其进行限制；尽管参照前述实施例对本公开进行了详细的说明，对于本领域的普通技术人员来说，依 然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或替换，并不使相应技术方案的本质脱离本公开所要求保护的技术方案的精神和范围。The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still understand the foregoing embodiments. The recorded technical solutions are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in this disclosure.

Claims (10)

  1. 一种中央空调控制***，包括：A central air-conditioning control system, comprising:
    至少一个室外机；At least one outdoor unit;
    至少两个室内机，其通过通信总线与各室外机通信连接，一个室内机和对应的一个室外机构成空调机组；At least two indoor units, which are communicatively connected to each outdoor unit through a communication bus, and one indoor unit and a corresponding outdoor unit form an air conditioning unit;
    集控器，其与所述通信总线连接，能够获取各空调机组的开关机状态及运行状态；A centralized controller, which is connected to the communication bus, can obtain the on/off status and running status of each air-conditioning unit;
    所述集控器配置各空调机组的运转轮换时间及各空调机组的轮换关系；The centralized controller configures the operation rotation time of each air-conditioning unit and the rotation relationship of each air-conditioning unit;
    所述集控器根据所述运转轮换时间、开关机状态和轮换关系，控制各空调机组的运行状态。The centralized controller controls the operation status of each air conditioning unit according to the operation rotation time, on/off status and rotation relationship.
  2. 根据权利要求1所述的中央空调控制***，所述集控器根据所述运转轮换时间、开关机状态和轮换关系，控制各空调机组的运行状态，具体为：According to the central air-conditioning control system according to claim 1, the centralized controller controls the operation status of each air-conditioning unit according to the operation rotation time, on-off status and rotation relationship, specifically:
    所述集控器下发查询指令，用于查询一个空调机组A的开关机状态；The centralized controller issues a query command for querying the on/off state of an air conditioning unit A;
    若所述空调机组A的开关机状态为开机状态或关机状态、且未达到所述运转轮换时间时，不对空调机组A进行轮换；If the on-off state of the air-conditioning unit A is on or off, and the operation rotation time has not been reached, the air-conditioning unit A will not be rotated;
    若所述空调机组A的开关机状态为开机状态、且已达到所述运转轮换时间时，对所述空调机组A进行轮换，且控制所述空调机组A关机；If the on-off state of the air-conditioning unit A is on and the operation rotation time has been reached, the air-conditioning unit A is switched, and the air-conditioning unit A is controlled to shut down;
    若所述空调机组A的开关机状态为关机状态，且已达到所述运转轮换时间时，对所述空调机组A进行轮换，且保持所述空调机组A关机。If the on/off state of the air-conditioning unit A is off, and the operation rotation time has been reached, the air-conditioning unit A is switched, and the air-conditioning unit A is kept turned off.
  3. 根据权利要求2所述的中央空调控制***，The central air-conditioning control system according to claim 2,
    对所述空调机组A进行轮换，具体为：The air conditioner unit A is rotated, specifically:
    将所述空调机组A的运行状态发送至与所述空调机组A具有轮换关系的空调机组B，所述空调机组B运行并更新所述空调机组B的运行状态。The operating state of the air conditioning unit A is sent to the air conditioning unit B that has a rotation relationship with the air conditioning unit A, and the air conditioning unit B runs and updates the operating state of the air conditioning unit B.
  4. 根据权利要求2所述的中央空调控制***，The central air-conditioning control system according to claim 2,
    所述集控器被配置为每隔一段时间下发所述查询指令。The centralized controller is configured to issue the query instruction at regular intervals.
  5. 根据权利要求1所述的中央空调控制***，The central air-conditioning control system according to claim 1,
    所述集控器被配置为获取空调机组的故障状态；The centralized controller is configured to obtain the fault status of the air conditioning unit;
    根据所述运转轮换时间、开关机状态、轮换关系和故障状态，控制各空调机组的运行状态。According to the operation rotation time, on/off status, rotation relationship and fault status, the operation status of each air conditioning unit is controlled.
  6. 根据权利要求5所述的中央空调控制***，According to the central air-conditioning control system according to claim 5,
    所述集控器被配置为设定所有多个空调机组的轮换优先级；The centralized controller is configured to set the rotation priority of all the plurality of air-conditioning units;
    以及下发查询指令，所述查询指令用于查询一个空调机组A的开关机状态；And issue a query command, the query command is used to query the on-off status of an air-conditioning unit A;
    若所述空调机组A的开关机状态为开机状态、未获取到所述空调机组A的故障状态、且未达到所述运转轮换时间时，或者若所述空调机组A的开关机状态为关机状态、且未达到所述运转轮换时间时，不对空调机组A进行轮换，且在距离所述运转轮换时间t时间段的时间点，获取优先级低于空调机组A的所有空调机组的故障状态；If the on-off state of the air-conditioning unit A is on, the fault state of the air-conditioning unit A has not been obtained, and the operation rotation time has not been reached, or if the on-off state of the air-conditioning unit A is off , and when the operation rotation time has not been reached, the air-conditioning unit A is not rotated, and at a time point t time period away from the operation rotation time, the fault status of all air-conditioning units with a priority lower than that of the air-conditioning unit A is obtained;
    若所述空调机组A的开关机状态为开机状态、未获取到所述空调机组A的故障状态、且已达到所述运转轮换时间时，或者若所述空调机组A的开关机状态为开机状态、获取到所述空调机组A的故障状态时，对所述空调机组A进行轮换，且控制所述空调机组A关机；If the on-off state of the air-conditioning unit A is on, the failure state of the air-conditioning unit A has not been obtained, and the operation rotation time has been reached, or if the on-off state of the air-conditioning unit A is on . When the fault state of the air-conditioning unit A is obtained, the air-conditioning unit A is rotated, and the air-conditioning unit A is controlled to shut down;
    若所述空调机组A的开关机状态为关机状态、且已达到所述运转轮换时间，对所述空调机组A进行轮换，且保持所述空调机组A关机。If the on/off state of the air conditioner unit A is off and the operation rotation time has been reached, the air conditioner unit A is switched, and the air conditioner unit A is kept turned off.
  7. 根据权利要求6所述的中央空调控制***，According to the central air-conditioning control system according to claim 6,
    对所述空调机组A进行轮换，具体为：The air conditioner unit A is rotated, specifically:
    将所述空调机组A的运行状态发送至无故障且轮换优先级低于所述空调机组A的轮换优先级的空调机组B，所述空调机组B运行并更新所述空调机组B的运行状态；Send the operating status of the air conditioning unit A to an air conditioning unit B that is fault-free and whose rotation priority is lower than that of the air conditioning unit A, and the air conditioning unit B runs and updates the operating status of the air conditioning unit B;
    其中所述空调机组B的轮换优先级高于所述所有空调机组的轮换优先级。Wherein the rotation priority of the air-conditioning unit B is higher than that of all the air-conditioning units.
  8. 根据权利要求6所述的中央空调控制***，According to the central air-conditioning control system according to claim 6,
    所述集控器被配置为每隔一段时间下发所述查询指令。The centralized controller is configured to issue the query instruction at regular intervals.
  9. 根据权利要求6所述的中央空调控制***，According to the central air-conditioning control system according to claim 6,
    所述集控器被配置为设定轮换标志位；The central controller is configured to set a rotation flag;
    若检测到空调机组出现故障，将所述空调机组的轮换标志位置为1，否则，将所述轮换标志位置于为0。If it is detected that the air-conditioning unit fails, set the position of the rotation flag of the air-conditioning unit to 1, otherwise, set the position of the rotation flag to 0.
  10. 根据权利要求6所述的中央空调控制***，According to the central air-conditioning control system according to claim 6,
    所述集控器被配置为设置所述空调机组A为主设备，剩余空调机组为应急设备；The centralized controller is configured to set the air-conditioning unit A as the main equipment, and the remaining air-conditioning units are emergency equipment;
    其中所述空调机组A的轮换优先级为最高级。Wherein the rotation priority of the air conditioning unit A is the highest.
PCT/CN2022/079610 2021-08-10 2022-03-07 Central air conditioning control system WO2023015874A1 (en)

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