WO2018053728A1 - Control method for multi-split air-conditioning system - Google Patents
Control method for multi-split air-conditioning system Download PDFInfo
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- WO2018053728A1 WO2018053728A1 PCT/CN2016/099624 CN2016099624W WO2018053728A1 WO 2018053728 A1 WO2018053728 A1 WO 2018053728A1 CN 2016099624 W CN2016099624 W CN 2016099624W WO 2018053728 A1 WO2018053728 A1 WO 2018053728A1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F24F11/00—Control or safety arrangements
Abstract
Disclosed in the present invention is a control method for a multi-split air-conditioning system. The control method comprises the following steps: S1, carrying out startup; S2, detecting a temperature T1 of an indoor environment where each indoor unit is located and a temperature Ts set by a user; S3, computing a difference ΔT=Tl-Ts; S4, computing a refrigeration demand indicator Al and a heating demand indicator Bl of each indoor unit according the ΔT; S5, computing a total refrigeration demand indicator A and a total heating demand indicator B of multiple indoor units according to the Al and the Bl; and S6, computing a difference C=A-B, comparing the difference C with a preset difference Cs; when C>Cs, controlling an outdoor unit to run in a refrigeration mode; when C=Cs, controlling the outdoor unit to run in a current mode or in a standby mode; and when C<Cs, controlling the outdoor unit to run in a heating mode.
Description
本发明涉及空调系统技术领域，尤其是涉及一种多联机空调系统的控制方法。The invention relates to the technical field of air conditioning systems, and in particular to a control method of a multi-connected air conditioning system.
多联式空调系统由于设计自由度高、安装便利、可靠性强、能效高等许多优点，越来越普遍地用于各种办公和住宅场所，在空调行业中所占的比例也越来越高。Due to its high degree of freedom in design, convenient installation, high reliability, and high energy efficiency, multi-connected air conditioning systems are increasingly used in various office and residential locations, and the proportion in the air-conditioning industry is also increasing. .
然而，由于多联式空调系统采用的是普通的制冷循环，无法满足同一系统中不同的室内机在同一时刻的制冷和制热两种需求。在实际使用中，经常面临制冷模式和制热模式相冲突而造成空调使用舒适性低的问题，尤其是由于个别室内机被设置为错误模式而造成多联式空调系统不能正常运转的问题，从而给用户带来很多不便。However, since the multi-connected air conditioning system adopts an ordinary refrigeration cycle, it is unable to meet the requirements of cooling and heating of different indoor units in the same system at the same time. In actual use, it often faces the problem that the cooling mode and the heating mode conflict, resulting in low air conditioning use comfort, especially because the individual indoor unit is set to the wrong mode, which causes the multi-connected air conditioning system to malfunction. It brings a lot of inconvenience to users.
相关技术中，通常通过设置制冷优先、制热优先、先开优先、目标用户优先、容量优先、或者设置只制冷或者只制热等多种模式来解决模式冲突给用户带来的影响。然而上述解决方式在实际处理过程中灵活性较差，不能按照用户的实际需求来控制室外机的运行模式，不能很好地解决由于模式冲突或者其它人为干预导致的不合理运行状况的发生。In the related art, the influence of the mode conflict on the user is usually solved by setting various modes such as cooling priority, heating priority, first opening priority, target user priority, capacity priority, or setting only cooling or heating only. However, the above solution is less flexible in the actual processing process, and cannot control the operation mode of the outdoor unit according to the actual needs of the user, and cannot solve the unreasonable operation condition caused by the pattern conflict or other human intervention.
发明内容Summary of the invention
本发明旨在至少在一定程度上解决现有技术中的上述技术问题之一。The present invention aims to solve at least one of the above technical problems in the prior art to some extent.
有鉴于此，本发明提出一种多联机空调系统的控制方法，所述多联机空调系统的控制方法，可以根据用户的实际需求控制室外机的运行模式，避免了模式冲突或者其它人为干预导致的不合理运行状况的发生。In view of this, the present invention provides a control method for a multi-connected air conditioning system, and the control method of the multi-connected air conditioning system can control an operation mode of the outdoor unit according to actual needs of the user, thereby avoiding pattern conflict or other human intervention. Unreasonable operating conditions occur.
根据本发明实施例的多联机空调系统的控制方法，所述多联机空调系统包括室外机和多个室内机，所述控制方法包括以下步骤：S1：开机；S2：检测每个所述室内机所处的室内环境温度Tl和相应的用户设定温度Ts；S3：计算每个所述室内机所处的室内环境温度和用户设定温度之间的差值ΔT＝Tl-Ts；S4：根据每个所述室内机的差值ΔT计算每个所述室内机的制冷需求指数Al和制热需求指数Bl；S5：根据每个所述室内机的制冷需求指数Al和制热需求指数Bl计算所述多个室内机的总制冷需求指数A和总制热需求指数B，其中，所述总制冷需求指数A为每个所述室内机的制冷需求指数Al的和，所述总制热需求指数B为每个所述室内机的制热需求指数Bl的和；S6：计算所
述总制冷需求指数A和所述总制热需求指数B的差值C＝A-B，并将所述差值C和预定差值Cs进行比较，当C>Cs时，控制所述室外机运行制冷模式；当C＝Cs时，控制所述室外机运行当前模式或者待机；当C<Cs时，控制所述室外机运行制热模式。According to the control method of the multi-connected air-conditioning system according to the embodiment of the present invention, the multi-connected air-conditioning system includes an outdoor unit and a plurality of indoor units, and the control method includes the following steps: S1: power on; S2: detecting each of the indoor units The indoor ambient temperature T1 and the corresponding user set temperature Ts; S3: calculating a difference ΔT=Tl-Ts between the indoor ambient temperature and the user set temperature at which each indoor unit is located; S4: Calculating a cooling demand index Al and a heating demand index B1 of each of the indoor units, and calculating a cooling demand index Al and a heating demand index B1 of each of the indoor units; a total cooling demand index A and a total heating demand index B of the plurality of indoor units, wherein the total cooling demand index A is a sum of cooling demand indexes Al of each of the indoor units, and the total heating demand The index B is the sum of the heating demand index B1 of each of the indoor units; S6: the calculation office
Comparing the difference between the total refrigeration demand index A and the total heating demand index B, C=AB, and comparing the difference C with a predetermined difference Cs, and controlling the outdoor unit to operate when C>Cs Mode; when C=Cs, the outdoor unit is controlled to operate in the current mode or standby; when C<Cs, the outdoor unit is controlled to operate in the heating mode.
根据本发明实施例的多联机空调系统的控制方法，通过将总制冷需求指数A和总制热需求指数B的差值C与定差值Cs进行比较来控制当前室外机的运行模式，当总制冷需求指数A和总制热需求指数B的差值C＞定差值Cs时，说明整体系统的制冷需求要大于系统的制热需求，此时室外机运行制冷模式；当总制冷需求指数A和总制热需求指数B的差值C＜预定差值Cs时，说明整体系统的制热需求要大于系统的制冷需求，此时室外机运行制热模式；当总制冷需求指数A和总制热需求指数B的差值C＝预定差值Cs时，说明此时整体系统的制冷需求和制热需求相当，此时室外机运行当前模式或者待机。通过将总制冷需求指数A和总制热需求指数B的差值C与定差值Cs进行比较来控制当前室外机的运行模式，可以根据用户的实际需要来控制室外机的运行模式，避免了模式冲突或者其他人为干预导致的不合理运行状况的发生。According to the control method of the multi-connected air-conditioning system according to the embodiment of the present invention, the current outdoor unit operating mode is controlled by comparing the difference C between the total cooling demand index A and the total heating demand index B with the constant difference Cs, when The difference between the cooling demand index A and the total heating demand index B, C> the difference Cs, indicates that the cooling demand of the overall system is greater than the heating demand of the system. At this time, the outdoor unit runs the cooling mode; when the total cooling demand index A When the difference C from the total heating demand index B is < predetermined difference Cs, it indicates that the heating demand of the overall system is greater than the cooling demand of the system. At this time, the outdoor unit operates in the heating mode; when the total cooling demand index A and the total system When the difference C of the heat demand index B is the predetermined difference Cs, it indicates that the cooling demand and the heating demand of the overall system are equivalent at this time, and the outdoor unit operates in the current mode or standby. By comparing the difference C between the total cooling demand index A and the total heating demand index B with the fixed difference Cs, the current outdoor unit operating mode is controlled, and the operating mode of the outdoor unit can be controlled according to the actual needs of the user, thereby avoiding Pattern conflicts or other unreasonable operating conditions caused by human intervention.
另外，根据本发明实施例的多联机空调系统的控制方法，还可以具有如下附加技术特征：In addition, the control method of the multi-connected air conditioning system according to the embodiment of the present invention may further have the following additional technical features:
根据本发明的一些实施例，在步骤S6结束后，重复步骤S2-S5。According to some embodiments of the invention, after the end of step S6, steps S2-S5 are repeated.
根据本发明的一些实施例，通过以下公式来分别计算每个所述室内机的制冷需求指数Al和制热需求指数Bl：当ΔT>0时，Al＝α*f(ΔT)，Bl＝0；当ΔT＜0时，Al＝0；Bl＝-β*g(ΔT)；当ΔT＝0时，Al＝Bl＝0，其中，α为每个所述室内机的制冷系数(α＞0)，β为每个所述室内机的制热系数(β＞0),f(ΔT)和g(ΔT)均为关于所述ΔT的正比例函数。According to some embodiments of the present invention, the refrigeration demand index Al and the heating demand index B1 of each of the indoor units are separately calculated by the following formula: when ΔT>0, Al=α*f(ΔT), Bl=0 When ΔT<0, Al=0; B1=-β*g(ΔT); when ΔT=0, Al=Bl=0, where α is the cooling coefficient of each of the indoor units (α>0 β is the heating coefficient (β>0) of each of the indoor units, and f(ΔT) and g(ΔT) are both proportional functions with respect to the ΔT.
根据本发明的一些实施例，每个所述室内机的制冷系数α均相同，且每个所述室内机的制热系数β均相同。According to some embodiments of the present invention, the refrigeration coefficient α of each of the indoor units is the same, and the heating coefficient β of each of the indoor units is the same.
根据本发明的一些实施例，所述多个室内机中至少有一个室内机的制冷系数α与其他室内机的制冷系数α不相同，所述多个室内机中至少有一个室内机的制热系数β与其他室内机的制热系数β不相同。According to some embodiments of the present invention, the refrigeration coefficient α of at least one of the plurality of indoor units is different from the refrigeration coefficient α of the other indoor units, and at least one of the plurality of indoor units is heated by the indoor unit. The coefficient β is different from the heating coefficient β of other indoor units.
根据本发明的一些实施例，还需要检测所述室外机所处的环境温度Tw，并根据所述环境温度Tw的值自动调整所述预定差值Cs的值。According to some embodiments of the present invention, it is also necessary to detect the ambient temperature Tw at which the outdoor unit is located, and automatically adjust the value of the predetermined difference Cs according to the value of the ambient temperature Tw.
根据本发明的一些实施例，当20℃≤Tw≤30℃时，所述预定差值Cs＝0。According to some embodiments of the invention, the predetermined difference Cs = 0 when 20 ° C ≤ Tw ≤ 30 ° C.
根据本发明的一些实施例，当Tw＜20℃时，所述预定差值Cs＞0。According to some embodiments of the invention, the predetermined difference Cs > 0 when Tw < 20 °C.
根据本发明的一些实施例，当Tw≤15℃时，所述预定差值Cs≥B。
According to some embodiments of the invention, the predetermined difference Cs ≥ B when Tw ≤ 15 °C.
根据本发明的一些实施例，当Tw＞30℃时，所述预定差值Cs＜0。According to some embodiments of the invention, the predetermined difference Cs < 0 when Tw > 30 °C.
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。The additional aspects and advantages of the invention will be set forth in part in the description which follows.
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from
图1是根据本发明实施例的多联机空调系统的控制方法的流程图。1 is a flow chart of a control method of a multi-connected air conditioning system according to an embodiment of the present invention.
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are intended to be illustrative of the invention and are not to be construed as limiting.
下面参考图1描述根据本发明实施例的多联机空调系统的控制方法。A control method of a multi-connected air conditioning system according to an embodiment of the present invention will be described below with reference to FIG.
根据本发明实施例的多联机空调系统的控制方法，多联机空调系统包括室外机和多个室内机，控制方法包括以下步骤：According to the control method of the multi-connected air-conditioning system according to the embodiment of the present invention, the multi-connected air-conditioning system includes an outdoor unit and a plurality of indoor units, and the control method includes the following steps:
S1：开机；S1: booting;
S2：检测每个室内机所处的室内环境温度Tl和相应的用户设定温度Ts；S2: detecting an indoor ambient temperature T1 at which each indoor unit is located and a corresponding user set temperature Ts;
S3：计算每个室内机所处的室内环境温度和用户设定温度之间的差值ΔT＝Tl-Ts；S3: calculating a difference ΔT=Tl-Ts between the indoor ambient temperature and the user set temperature at which each indoor unit is located;
S4：根据每个室内机的差值ΔT计算每个室内机的制冷需求指数Al和制热需求指数Bl；S4: calculating the cooling demand index Al and the heating demand index B1 of each indoor unit according to the difference ΔT of each indoor unit;
S5：根据每个室内机的制冷需求指数Al和制热需求指数Bl所述多个室内机的总制冷需求指数A和总制热需求指数B，其中，总制冷需求指数A为每个室内机的制冷需求指数Al的和，总制热需求指数B为每个室内机的制热需求指数Bl的和。例如当多联机空调系统包括n个室内机时：A＝Al1+Al2+…+Aln；B＝Bl1+Bl2+…+Bln，其中下标1～n为相应的内机标识；S5: a total cooling demand index A and a total heating demand index B of the plurality of indoor units according to the cooling demand index Al and the heating demand index B1 of each indoor unit, wherein the total cooling demand index A is each indoor unit The sum of the refrigeration demand index Al, the total heating demand index B is the sum of the heating demand index Bl of each indoor unit. For example, when the multi-connected air conditioning system includes n indoor units: A=Al 1 +Al 2 +...+Al n ; B=Bl 1 +Bl 2 +...+Bln, where the subscripts 1 to n are corresponding internal identifiers ;
S6：计算总制冷需求指数A和总制热需求指数B的差值C＝A-B，并将差值C和预定差值Cs进行比较，S6: calculating the difference C=A-B of the total cooling demand index A and the total heating demand index B, and comparing the difference C with the predetermined difference Cs,
当C>Cs时，控制室外机运行制冷模式；When C>Cs, control the outdoor unit to run the cooling mode;
当C＝Cs时，控制室外机运行当前模式或者待机；When C=Cs, control the outdoor unit to run the current mode or standby;
当C<Cs时，控制室外机运行制热模式。When C<Cs, the outdoor unit is controlled to operate in the heating mode.
根据本发明实施例的多联机空调系统的控制方法，通过将总制冷需求指数A和总制
热需求指数B的差值C与定差值Cs进行比较来控制当前室外机的运行模式，当总制冷需求指数A和总制热需求指数B的差值C＞定差值Cs时，说明整体系统的制冷需求要大于系统的制热需求，此时室外机运行制冷模式；当总制冷需求指数A和总制热需求指数B的差值C＜预定差值Cs时，说明整体系统的制热需求要大于系统的制冷需求，此时室外机运行制热模式；当总制冷需求指数A和总制热需求指数B的差值C＝预定差值Cs时，说明此时整体系统的制冷需求和制热需求相当，此时室外机运行当前模式或者待机。通过将总制冷需求指数A和总制热需求指数B的差值C与定差值Cs进行比较来控制当前室外机的运行模式，可以根据用户的实际需要来控制室外机的运行模式，避免了模式冲突或者其他人为干预导致的不合理运行状况的发生。A method for controlling a multi-connected air conditioning system according to an embodiment of the present invention, by using a total refrigeration demand index A and a total system
The difference C of the heat demand index B is compared with the fixed value Cs to control the current outdoor machine operating mode. When the difference between the total cooling demand index A and the total heating demand index B is C> the difference Cs, the overall The cooling demand of the system is greater than the heating demand of the system. At this time, the outdoor unit runs the cooling mode; when the difference between the total cooling demand index A and the total heating demand index B is C < predetermined difference Cs, the heating of the overall system is indicated. The demand is greater than the cooling demand of the system. At this time, the outdoor unit runs the heating mode; when the difference between the total cooling demand index A and the total heating demand index B is C = the predetermined difference Cs, the cooling demand of the overall system at this time is explained. The heating demand is equivalent, and the outdoor unit is running in the current mode or standby. By comparing the difference C between the total cooling demand index A and the total heating demand index B with the fixed difference Cs, the current outdoor unit operating mode is controlled, and the operating mode of the outdoor unit can be controlled according to the actual needs of the user, thereby avoiding Pattern conflicts or other unreasonable operating conditions caused by human intervention.
这里需要说明是，室内机的制冷需求指数Al指的是用户基于当前的室内环境对制冷的需求程度，制热需求指数Bl指的是用户基于当前的室内环境对制热的需求程度。例如当用户设定温度为25℃时，而此时室内环境温度为35℃，此时用户对于制冷的需求程度要大于制热的需求程度；当用户设定温度为25℃时，而此时室内环境温度为-5℃时，此时用户对于制热的需求程度要大于制冷的需求程度。It should be noted here that the cooling demand index Al of the indoor unit refers to the degree of demand of the user based on the current indoor environment, and the heating demand index B1 refers to the degree of demand for heating by the user based on the current indoor environment. For example, when the user sets the temperature to 25 ° C, and the indoor ambient temperature is 35 ° C, the user's demand for cooling is greater than the heating demand; when the user sets the temperature to 25 ° C, and at this time When the indoor ambient temperature is -5 ° C, the user's demand for heating is greater than the cooling demand.
在本发明的一些实施例中，还需要检测室外机所处的环境温度Tw，并且室外机可以根据环境温度Tw的值来自动调整预定差值Cs的值，也就是说，预定差值Cs的值是可以根据环境温度Tw的值进行调整和变化的，这样使得室外机运行模式的控制和调整更加合理和智能化，可以更进一步地避免模式冲突或者其他人为干预导致的不合理运行状况的发生。In some embodiments of the present invention, it is also necessary to detect the ambient temperature Tw at which the outdoor unit is located, and the outdoor unit can automatically adjust the value of the predetermined difference Cs according to the value of the ambient temperature Tw, that is, the predetermined difference Cs. The value can be adjusted and changed according to the value of the ambient temperature Tw, so that the control and adjustment of the outdoor machine operating mode is more reasonable and intelligent, and the occurrence of mode conflict or other unreasonable operating conditions caused by human intervention can be further avoided. .
在本发明的一些实施例中，当20℃≤Tw≤30℃时，预定差值Cs＝0，此时当C>0即A>B时，控制室外机运行制冷模式；当C＝0即A＝B时，控制室外机运行当前模式或者待机；当C<0即A＜B时，控制室外机运行制热模式。In some embodiments of the present invention, when 20 ° C ≤ Tw ≤ 30 ° C, the predetermined difference Cs = 0, when C > 0 or A > B, the outdoor unit is controlled to operate the cooling mode; when C = 0 When A=B, the outdoor unit is controlled to operate in the current mode or standby; when C<0 or A<B, the outdoor unit is controlled to operate in the heating mode.
在本发明的一些实施例中，当Tw＜20℃时，预定差值Cs＞0。In some embodiments of the invention, the predetermined difference Cs > 0 when Tw < 20 °C.
进一步地，当Tw≤15℃，预定差值Cs≥B。Further, when Tw ≤ 15 ° C, the predetermined difference Cs ≥ B.
在本发明的一些实施例中，当Tw＞30℃时，预定差值Cs＜0。In some embodiments of the invention, the predetermined difference Cs < 0 when Tw > 30 °C.
可以理解的是，总制冷需求指数A和总制热需求指数B是实时变化的，当室外机运行制冷时，总制冷需求指数A是在下降的，总制热需求指数B是在上升或不变的；当室外机运行制热时，总制冷需求指数A是在上升或不变的，总制热需求指数B是在下降的。It can be understood that the total cooling demand index A and the total heating demand index B are changed in real time. When the outdoor unit is running cooling, the total cooling demand index A is decreasing, and the total heating demand index B is rising or not. When the outdoor unit is running heating, the total cooling demand index A is rising or unchanged, and the total heating demand index B is decreasing.
在本发明的一些实施例中，如图1所示，在上述步骤S6结束后，重复步骤S2-S5，重复步骤S2-S5，也就是说需要对每个室内机所处的室内环境温度Tl和相应的用户设定温度Ts以及室外机所处的室外环境温度Tw进行重新检测，对于每个室内机所处的
室内环境温度和用户设定温度之间的差值ΔT＝Tl-Ts、每个室内机的制冷需求指数Al和制热需求指数Bl、多个室内机的总制冷需求指数A和总制热需求指数B、总制冷需求指数A和总制热需求指数B的差值进行重新计算，得出当前时刻总制冷需求指数A和总制热需求指数B的差值，并将当前时刻总制冷需求指数A和总制热需求指数B的差值与预定差值Cs进行重新比较，这样可以不断更新用户的实际需求，不会造成控制信息滞后，保证用户的实际需求可以得到及时的执行。In some embodiments of the present invention, as shown in FIG. 1, after the end of the above step S6, the steps S2-S5 are repeated, and the steps S2-S5 are repeated, that is, the indoor ambient temperature T1 for each indoor unit is required. Re-detection with the corresponding user-set temperature Ts and the outdoor ambient temperature Tw at which the outdoor unit is located, for each indoor unit
The difference between indoor ambient temperature and user set temperature ΔT=Tl-Ts, cooling demand index Al and heating demand index Bl of each indoor unit, total cooling demand index A of multiple indoor units, and total heating demand The difference between the index B, the total cooling demand index A and the total heating demand index B is recalculated, and the difference between the total cooling demand index A and the total heating demand index B at the current moment is obtained, and the current total cooling demand index is obtained. The difference between A and the total heating demand index B is re-compared with the predetermined difference Cs, so that the actual demand of the user can be continuously updated without causing the control information to lag, and the actual demand of the user can be timely executed.
可选地，在步骤S6结束后，可以间隔一段时间再重复执行步骤S2-S5，例如可以在5分钟左右、十分钟左右、或者半个小时左右等再复执行步骤S2-S5；当然在步骤S6结束后，也可以不间断地重复执行步骤S2-S5，也就是说可以实时检测每个室内机所处的室内环境温度Tl和相应的用户设定温度Ts以及室外机所处的室外环境温度Tw，从而可以实时更新用户的实际制冷或者制热需求，用户的实际需求可以得到及时的执行。Optionally, after the end of step S6, the steps S2-S5 may be repeatedly performed at intervals, for example, the steps S2-S5 may be repeated in about 5 minutes, about ten minutes, or about half an hour; After the end of S6, steps S2-S5 may be repeatedly performed without interruption, that is, the indoor ambient temperature T1 at which each indoor unit is located and the corresponding user set temperature Ts and the outdoor ambient temperature at which the outdoor unit is located may be detected in real time. Tw, so that the actual cooling or heating demand of the user can be updated in real time, and the actual needs of the user can be executed in time.
室外机运行制冷模式时，总制冷需求指数A是在下降的，总制热需求指数B是在上升或不变的，同时总制冷需求指数A和总制热需求指数B的差值不断减小，当其减小至等于预定差值Cs时，室外机运行当前制冷模式或者待机，当其继续减小至小于预定差值Cs时，室外机转而运行制热模式，以满足用户的制热需求；室外机运行制热模式时，总制冷需求指数A是在上升或不变的，总制热需求指数B是在下降的，同时总制冷需求指数A和总制热需求指数B的差值不断增大，当其增大至等于预定差值Cs时，此时室外机运行当前制热模式或者待机，当其继续增大至大于预定差值Cs时，此时室外机转而运行制冷模式，满足用户的制冷需求。该控制方法采用让步接受的方式满足所有区域的需求，从而能够最大范围地满足用户的实际需要。When the outdoor unit runs the cooling mode, the total cooling demand index A is decreasing, and the total heating demand index B is rising or unchanged, while the difference between the total cooling demand index A and the total heating demand index B is decreasing. When it is reduced to be equal to the predetermined difference Cs, the outdoor unit operates the current cooling mode or standby, and when it continues to decrease to less than the predetermined difference Cs, the outdoor unit switches to the heating mode to satisfy the heating of the user. Demand; when the outdoor unit is running in the heating mode, the total cooling demand index A is rising or unchanged, the total heating demand index B is decreasing, and the difference between the total cooling demand index A and the total heating demand index B Increasingly, when it increases to be equal to the predetermined difference Cs, at this time, the outdoor unit operates the current heating mode or standby, and when it continues to increase to be greater than the predetermined difference Cs, the outdoor unit switches to the cooling mode at this time. To meet the cooling needs of users. The control method satisfies the requirements of all regions in a concessive manner, so as to meet the actual needs of users to the greatest extent.
在本发明的一些实施例中，通过以下公式来分别计算每个室内机的制冷需求指数Al和制热需求指数Bl：In some embodiments of the present invention, the refrigeration demand index Al and the heating demand index B1 of each indoor unit are separately calculated by the following formula:
当ΔT>0时，Al＝α*f(ΔT)，Bl＝0；When ΔT>0, Al=α*f(ΔT), Bl=0;
当ΔT＜0时，Al＝0；Bl＝-β*g(ΔT)；When ΔT<0, Al=0; Bl=-β*g(ΔT);
当ΔT＝0时，Al＝Bl＝0，When ΔT=0, Al=Bl=0,
其中，α为每个室内机的制冷系数(α＞0)，β为每个室内机的制热系数(β＞0)，f(ΔT)和g(ΔT)均为关于ΔT的正比例函数。Where α is the refrigeration coefficient (α>0) of each indoor unit, β is the heating coefficient (β>0) of each indoor unit, and f(ΔT) and g(ΔT) are both proportional functions with respect to ΔT.
上述每个室内机的制冷系数α和每个室内机的制热系数β的大小体现每个室内机所处区域的重要性，其大小可以根据每个室内机所处区域在所有区域中的重要程度或者喜好来确定。当多联机空调系统中的每个室内机所处区域的重要程度相当时，每个室内机的制冷系数α均相同，且每个室内机的制热系数β均相同,从而可以很好的体现用户
的实际需求；当多联机空调系统中的多个室内机所处区域间的重要程度并不完全相同时，例如当多个室内机中有用于手术室制冷或者制热的，有用于普通病房、办公室、走道或者厕所区域制冷或者制热的，那么此时多个室内机中至少有一个室内机的制冷系数α与其他室内机的制冷系数α不相同，多个室内机中至少有一个室内机的制热系数β与其他室内机的制热系数β不相同，可以将重要区域内的室内机的制冷系数α和制热系数β的值设置大一些，这样室外机可以优先满足重要区域的需求。The cooling coefficient α of each of the indoor units and the heating coefficient β of each indoor unit reflect the importance of the area in which each indoor unit is located, and the size thereof may be important in all areas according to the area in which each indoor unit is located. Degree or preference to determine. When the importance of each indoor unit in the multi-connected air-conditioning system is equivalent, the refrigeration coefficient α of each indoor unit is the same, and the heating coefficient β of each indoor unit is the same, so that it can be well reflected User
Actual demand; when the importance of multiple indoor units in a multi-connected air conditioning system is not exactly the same, for example, when there are multiple indoor units for operating room cooling or heating, there are common wards, If the office, walkway or toilet area is cooled or heated, then at least one of the plurality of indoor units has a different cooling coefficient α than the other indoor units, and at least one of the plurality of indoor units has at least one indoor unit. The heating coefficient β is different from the heating coefficient β of other indoor units, and the value of the cooling coefficient α and the heating coefficient β of the indoor unit in the important area can be set larger, so that the outdoor unit can preferentially satisfy the demand of the important area. .
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“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发明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。In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。
While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.
Claims (10)
- 一种多联机空调系统的控制方法，所述多联机空调系统包括室外机和多个室内机，其特征在于，所述控制方法包括以下步骤：A control method for a multi-connected air-conditioning system, the multi-connected air-conditioning system comprising an outdoor unit and a plurality of indoor units, wherein the control method comprises the following steps:S1：开机；S1: booting;S2：检测每个所述室内机所处的室内环境温度Tl和相应的用户设定温度Ts；S2: detecting an indoor ambient temperature T1 at which each indoor unit is located and a corresponding user set temperature Ts;S3：计算每个所述室内机所处的室内环境温度和用户设定温度之间的差值ΔT＝Tl-Ts；S3: calculating a difference ΔT=Tl-Ts between the indoor ambient temperature and the user set temperature at which each indoor unit is located;S4：根据每个所述室内机的差值ΔT计算每个所述室内机的制冷需求指数Al和制热需求指数Bl；S4: calculating a cooling demand index Al and a heating demand index B1 of each of the indoor units according to a difference ΔT of each of the indoor units;S5：根据每个所述室内机的制冷需求指数Al和制热需求指数Bl计算所述多个室内机的总制冷需求指数A和总制热需求指数B，其中，所述总制冷需求指数A为每个所述室内机的制冷需求指数Al的和，所述总制热需求指数B为每个所述室内机的制热需求指数Bl的和；S5: calculating a total cooling demand index A and a total heating demand index B of the plurality of indoor units according to a cooling demand index Al and a heating demand index B1 of each of the indoor units, wherein the total cooling demand index A For the sum of the refrigeration demand index Al of each of the indoor units, the total heating demand index B is the sum of the heating demand index B1 of each of the indoor units;S6：计算所述总制冷需求指数A和所述总制热需求指数B的差值C＝A-B，并将所述差值C和预定差值Cs进行比较，S6: calculating a difference C=A-B between the total cooling demand index A and the total heating demand index B, and comparing the difference C with a predetermined difference Cs,当C>Cs时，控制所述室外机运行制冷模式；Controlling the outdoor unit to operate the cooling mode when C>Cs;当C＝Cs时，控制所述室外机运行当前模式或者待机；Controlling the outdoor unit to operate in a current mode or standby when C=Cs;当C<Cs时，控制所述室外机运行制热模式。When C < Cs, the outdoor unit is controlled to operate in a heating mode.
- 根据权利要求1所述的多联机空调系统的控制方法，其特征在于，在步骤S6结束后，重复步骤S2-S5。The control method of the multi-connected air conditioning system according to claim 1, wherein after the end of step S6, steps S2-S5 are repeated.
- 根据权利要求1或2所述的多联机空调系统的控制方法，其特征在于，通过以下公式来分别计算每个所述室内机的制冷需求指数Al和制热需求指数Bl：The control method of the multi-connected air-conditioning system according to claim 1 or 2, wherein the cooling demand index Al and the heating demand index B1 of each of the indoor units are respectively calculated by the following formula:当ΔT>0时，Al＝α*f(ΔT)，Bl＝0；When ΔT>0, Al=α*f(ΔT), Bl=0;当ΔT＜0时，Al＝0；Bl＝-β*g(ΔT)；When ΔT<0, Al=0; Bl=-β*g(ΔT);当ΔT＝0时，Al＝Bl＝0，When ΔT=0, Al=Bl=0,其中，α为每个所述室内机的制冷系数(α＞0)，β为每个所述室内机的制热系数(β＞0),f(ΔT)和g(ΔT)均为关于所述ΔT的正比例函数。Where α is the refrigeration coefficient (α>0) of each of the indoor units, β is the heating coefficient (β>0) of each of the indoor units, and f(ΔT) and g(ΔT) are all related to A positive proportional function of ΔT.
- 根据权利要求3所述的多联机空调系统的控制方法，其特征在于，每个所述室内机的制冷系数α均相同，且每个所述室内机的制热系数β均相同。The control method of the multi-connected air-conditioning system according to claim 3, wherein each of the indoor units has the same cooling coefficient α, and each of the indoor units has the same heating coefficient β.
- 根据权利要求3所述的多联机空调系统的控制方法，其特征在于，所述多个室 内机中至少有一个室内机的制冷系数α与其他室内机的制冷系数α不相同，所述多个室内机中至少有一个室内机的制热系数β与其他室内机的制热系数β不相同。The control method of a multiple online air conditioning system according to claim 3, wherein said plurality of rooms The refrigeration coefficient α of at least one of the indoor units is different from the refrigeration coefficient α of the other indoor units, and the heating coefficient β of at least one of the plurality of indoor units and the heating coefficient β of the other indoor units are not the same.
- 根据权利要求1所述的多联机空调系统的控制方法，其特征在于，还需要检测所述室外机所处的环境温度Tw，并根据所述环境温度Tw的值自动调整所述预定差值Cs的值。The control method of the multi-connected air-conditioning system according to claim 1, further comprising: detecting an ambient temperature Tw at which the outdoor unit is located, and automatically adjusting the predetermined difference Cs according to the value of the ambient temperature Tw Value.
- 根据权利要求6所述的多联机空调系统的控制方法，其特征在于，当20℃≤Tw≤30℃时，所述预定差值Cs＝0。The control method of the multi-connected air conditioning system according to claim 6, wherein the predetermined difference Cs = 0 when 20 ° C ≤ Tw ≤ 30 ° C.
- 根据权利要求6所述的多联机空调系统的控制方法，其特征在于，当Tw＜20℃时，所述预定差值Cs＞0。The control method of the multi-connected air conditioning system according to claim 6, wherein the predetermined difference Cs > 0 when Tw < 20 °C.
- 根据权利要求8所述的多联机空调系统的控制方法，其特征在于，当Tw≤15℃时，所述预定差值Cs≥B。The control method of the multi-connected air conditioning system according to claim 8, wherein the predetermined difference Cs ≥ B when Tw ≤ 15 °C.
- 根据权利要求6所述的多联机空调系统的控制方法，其特征在于，当Tw＞30℃时，所述预定差值Cs＜0。 The control method of the multi-connected air conditioning system according to claim 6, wherein the predetermined difference Cs < 0 when Tw > 30 °C.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066709A1 (en) * | 2022-09-28 | 2024-04-04 | 广东美的制冷设备有限公司 | Control method for environmental conditioning device, environmental conditioning device, and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2535669A2 (en) * | 2011-06-17 | 2012-12-19 | Mitsubishi Heavy Industries, Ltd. | Multi-split type air conditioning system |
| CN103727650A (en) * | 2013-12-25 | 2014-04-16 | 华为技术有限公司 | Air conditioner and dehumidification control method |
| CN104374055A (en) * | 2014-11-26 | 2015-02-25 | 珠海格力电器股份有限公司 | Control method and system for air conditioner unit |
| CN104748317A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Multiple on-line system and mode control method and device thereof |
| CN105674402A (en) * | 2016-03-23 | 2016-06-15 | 广东美的暖通设备有限公司 | Multiple-on-line system and mode switching control method thereof |
| CN106642521A (en) * | 2016-09-21 | 2017-05-10 | 广东美的暖通设备有限公司 | Control method of multi-split air-conditioning system |
-
2016
- 2016-09-21 WO PCT/CN2016/099624 patent/WO2018053728A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2535669A2 (en) * | 2011-06-17 | 2012-12-19 | Mitsubishi Heavy Industries, Ltd. | Multi-split type air conditioning system |
| CN103727650A (en) * | 2013-12-25 | 2014-04-16 | 华为技术有限公司 | Air conditioner and dehumidification control method |
| CN104374055A (en) * | 2014-11-26 | 2015-02-25 | 珠海格力电器股份有限公司 | Control method and system for air conditioner unit |
| CN104748317A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Multiple on-line system and mode control method and device thereof |
| CN105674402A (en) * | 2016-03-23 | 2016-06-15 | 广东美的暖通设备有限公司 | Multiple-on-line system and mode switching control method thereof |
| CN106642521A (en) * | 2016-09-21 | 2017-05-10 | 广东美的暖通设备有限公司 | Control method of multi-split air-conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066709A1 (en) * | 2022-09-28 | 2024-04-04 | 广东美的制冷设备有限公司 | Control method for environmental conditioning device, environmental conditioning device, and storage medium |
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