WO2019210807A1 - 中央空调***的冷水主机控制方法、装置及*** - Google Patents
中央空调***的冷水主机控制方法、装置及*** Download PDFInfo
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- WO2019210807A1 WO2019210807A1 PCT/CN2019/084333 CN2019084333W WO2019210807A1 WO 2019210807 A1 WO2019210807 A1 WO 2019210807A1 CN 2019084333 W CN2019084333 W CN 2019084333W WO 2019210807 A1 WO2019210807 A1 WO 2019210807A1
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- chiller
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- air conditioning
- central air
- conditioning system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
Definitions
- the present disclosure relates to the technical field of air conditioners, and in particular, to a method, device and system for controlling a chiller of a central air conditioning system.
- the cooling room of the central air-conditioning system usually has multiple chillers to provide cooling capacity, which can adapt to the changes of cooling capacity of different loads throughout the year.
- the control mechanism of the central air conditioning system in the related art cannot collect or predict the load cooling capacity of the building requiring cooling in advance, and cannot directly open the combination of the cold water host to the optimal combination of the actual load cooling capacity of the building when the unit is started. Not only does it take more time to reach a steady state, but there are multiple groups of units that provide the same amount of cooling.
- the present disclosure aims to solve at least one of the technical problems in the related art to some extent.
- an object of the present disclosure is to provide a chiller control method for a central air conditioning system, which can directly open a combination of a chilled water host to an optimal combination of a building's actual load cooling capacity when the unit is started, and improve the central air conditioner.
- the intelligent control effect of the system optimization control and the stability of the system maximize the efficiency utilization of the central air conditioning system.
- Another object of the present disclosure is to provide a chiller control device for a central air conditioning system.
- Another object of the present disclosure is to provide a chiller control system for a central air conditioning system.
- a chiller control method for a central air conditioning system includes: obtaining a total load cooling capacity of a central air conditioning system; determining a target chiller combination according to the total load cooling capacity, and The total load cooling capacity determines operating parameters corresponding to each target chiller in the target chiller combination; and each target chiller in the target chiller combination is controlled to perform cooling with respective operating parameters.
- the chiller control method of the central air conditioning system proposed by the first aspect of the present disclosure because the target chiller combination determined according to the total load cooling capacity is a chiller combination capable of achieving a performance optimal state of the central air conditioning system, It can realize the intelligent control effect and system stability of the central air-conditioning system optimization control by directly opening the combination of the cold water main unit to the optimal combination of the actual load cooling capacity of the building when the unit is started, so that the efficiency of the central air-conditioning system can be utilized. maximize.
- a chiller control device for a central air conditioning system includes: a first acquisition module for acquiring a total load cooling capacity of the central air conditioning system; and a first determining module for The total load cooling capacity determines a target chiller combination, and determines operating parameters corresponding to each target chiller in the target chiller combination according to the total load cooling capacity; and a control module configured to control the target chiller combination Each target chiller performs cooling with its corresponding operating parameters.
- the chiller host control device of the central air conditioning system is a combination of a target chiller host determined according to the total load cooling capacity, and a chiller host capable of achieving a performance optimal state of the central air conditioning system. It can realize the intelligent control effect and system stability of the central air-conditioning system optimization control by directly opening the combination of the cold water main unit to the optimal combination of the actual load cooling capacity of the building when the unit is started, so that the efficiency of the central air-conditioning system can be utilized. maximize.
- a chiller control system for a central air conditioning system includes: a chiller control device for a central air conditioning system according to the second aspect of the present disclosure.
- the chiller host control system of the central air conditioning system proposed by the third embodiment of the present disclosure is a chiller host combination capable of achieving a state of optimal performance of the central air conditioning system due to the target chiller combination determined according to the total load cooling capacity. It can realize the intelligent control effect and system stability of the central air-conditioning system optimization control by directly opening the combination of the cold water main unit to the optimal combination of the actual load cooling capacity of the building when the unit is started, so that the efficiency of the central air-conditioning system can be utilized. maximize.
- FIG. 1 is a schematic flow chart of a method for controlling a chiller of a central air conditioning system according to an embodiment of the present disclosure
- FIG. 2 is a schematic diagram of a performance curve of a preset chiller in the embodiment of the present disclosure
- FIG. 3 is a schematic flow chart of a method for controlling a chiller of a central air conditioning system according to another embodiment of the present disclosure
- FIG. 4 is a schematic diagram of a first performance curve in an embodiment of the present disclosure.
- FIG. 5 is a schematic diagram of a performance curve of various cold water host combinations in an embodiment of the present disclosure
- FIG. 6 is another schematic diagram of performance curves of various cold water host combinations in an embodiment of the present disclosure.
- FIG. 7 is a schematic diagram of another preset chiller performance curve in the embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram of a chiller control device of a central air conditioning system according to an embodiment of the present disclosure
- FIG. 9 is a schematic structural diagram of a chiller control device of a central air conditioning system according to another embodiment of the present disclosure.
- FIG. 1 is a schematic flow chart of a method for controlling a chiller of a central air conditioning system according to an embodiment of the present disclosure.
- This embodiment is exemplified by the chiller control method of the central air conditioning system being configured as the chiller control device of the central air conditioning system.
- the chiller control method of the central air conditioning system may be configured in a chiller control device of the central air conditioning system, and the chiller control device of the central air conditioning system may be disposed in the server, or may be disposed in the electronic device, This is not a limitation.
- This embodiment is exemplified in the electronic device by the chiller control method of the central air conditioning system.
- electronic devices such as smart phones, tablet computers, personal digital assistants, e-books, and the like have hardware devices of various operating systems.
- execution body of the embodiment of the present disclosure may be, for example, a central processing unit (CPU) of an electronic device in hardware, and may be, for example, a home appliance control service in an electronic device. No restrictions.
- the cooling room of the central air-conditioning system usually has multiple chillers to provide cooling capacity, which can adapt to the changes of cooling capacity of different loads throughout the year.
- the control mechanism of the central air conditioning system in the related art cannot collect or predict the load cooling capacity of the building requiring cooling in advance, and cannot directly open the combination of the cold water host to the optimal combination of the actual load cooling capacity of the building when the unit is started. Not only does it take more time to reach a steady state, but there are multiple sets of units that provide the same amount of cooling. In this way, the optimal combination of multiple cold water host combinations is difficult to determine.
- the embodiment of the present disclosure determines the target chiller combination according to the total load cooling capacity, and determines the operating parameters corresponding to each target chiller in the target chiller combination according to the total load cooling capacity, and controls each of the target chiller combinations.
- the target chiller performs cooling with its corresponding operating parameters. Because the target chiller combination determined according to the total load cooling capacity is a chiller combination that enables the central air conditioning system to achieve optimal performance, it can be started at the unit. When the combination of the cold water main unit is directly turned on to the optimal combination of the actual load cooling capacity of the building, the intelligent control effect and system stability of the central air conditioning system optimization control are improved, and the efficiency utilization of the central air conditioning system is maximized.
- the method includes:
- the total load cooling capacity is, for example, the actual amount of cooling or the predicted cooling amount required for a building or the like that is currently required to be cooled.
- the cooling capacity estimation model in the related art can be used to determine the total load cooling capacity of the central air conditioning system in combination with equipment power consumption, ventilation volume, and parameters such as airflow, real-time temperature, and real-time humidity.
- S102 Determine a target chiller combination according to the total load cooling capacity, and determine an operation parameter corresponding to each target chiller in the target chiller combination according to the total load cooling capacity.
- the corresponding chiller combination can be determined from the preset chiller performance curve as the target chiller combination according to the total load cooling capacity, wherein the preset chiller performance curve is pre-generated during the test operation phase.
- the preset chiller performance curve is pre-generated during the test operation phase.
- FIG. 2 is a schematic diagram of a preset chiller performance curve according to an embodiment of the present disclosure.
- the preset chiller performance curve 21 shown in FIG. 2 is a power curve based on a two-dimensional coordinate system, and further includes a mark 22, Mark 22 is a coordinate point on the preset chiller performance curve, which can be any coordinate point on the preset chiller performance curve, and the abscissa axis of the two-dimensional coordinate system identifies the total load cooling capacity, two-dimensional coordinates The ordinate axis of the system identifies the total power of the central air conditioning system.
- the preset chiller performance curve is a COP energy efficiency curve based on a two-dimensional coordinate system, and an abscissa axis identifier of the two-dimensional coordinate system.
- the total load cooling capacity, the ordinate axis of the two-dimensional coordinate system identifies the COP energy efficiency of the central air conditioning system.
- each chiller may be the same or different, that is, it may be a fixed-frequency unit or a variable-frequency unit, different types of chillers have different load characteristics, under the same total load cooling capacity.
- the cooling capacity corresponding to each chiller is different when the minimum power combination is reached, that is, the central air conditioning system produces a certain amount of cooling capacity, and each chiller under each combination does not necessarily produce the same wattage of cold. Therefore, in order to further maximize the optimization control performance, it is also possible to determine the cooling capacity corresponding to each target chiller in the target chiller combination under the target chiller combination and the total operating cooling capacity; The cooling capacity corresponding to the host generates operating parameters to obtain corresponding operating parameters.
- each chiller corresponding to each combination corresponds to The cooling capacity is stored, and the corresponding cooling capacity is stored. Then, in S102, the cooling capacity corresponding to each target chiller can be directly read, and according to the performance characteristics of each type of chiller, the output corresponding cooling capacity is analyzed. The required operating parameters.
- each of the target chillers and the corresponding operating parameters may be generated separately.
- the present disclosure may also dynamically acquire the current total load cooling capacity of the central air conditioning system during the cooling process of each target chiller in the target chiller combination; determine the current total load cooling capacity and total load cooling The amount of change between the quantities; if the amount of change meets the preset condition, the current total load cooling capacity is used to update the total load cooling capacity; and the target cold water host combination is re-determined based on the updated total load cooling capacity.
- the difference between the current total load cooling capacity and the total load cooling capacity may be directly calculated, and the obtained difference value is used as the variation amount, and then it is determined whether the variation amount satisfies the preset condition.
- the preset condition may be, for example, whether the amount of change is greater than or equal to a threshold of a cooling amount, which may be set by the user according to actual usage requirements, or may be preset by a central air conditioning factory program, which is not limited thereto.
- the target cold water host combination can be triggered to re-determine the cooling performance of the central air conditioning system. Stay optimal.
- a first preset time may also be set, in which the total load cooling capacity is in the total load of the target chiller combination. Within the threshold range of positive and negative changes in the cooling capacity, it is confirmed that the current target chiller combination is updated.
- a second preset time may be set, and each time the target chiller combination is updated, the distance is determined. If the time is greater than or equal to the second preset time, and the determination condition of the first preset time is met, the update of the current target chiller combination may be triggered, and the step of further improving the central air conditioning system Operational stability.
- the target chiller combination determined according to the total load cooling capacity is a chiller combination capable of achieving the optimal performance of the central air conditioning system, it is possible to directly open the chiller combination to the unit startup. It is suitable for the optimal combination of the actual load cooling capacity of the building, and improves the intelligent control effect and system stability of the central air-conditioning system optimization control, so that the efficiency utilization of the central air-conditioning system is maximized.
- FIG. 3 is a schematic flow chart of a method for controlling a chiller of a central air conditioning system according to another embodiment of the present disclosure.
- the method may further include:
- S301 Obtain a first performance curve of each chiller in the central air conditioning system, and obtain a plurality of first performance curves.
- FIG. 4 is a schematic diagram of a first performance curve according to an embodiment of the present disclosure, which includes a plurality of first performance curves 41.
- the first performance curve 41 is a COP energy efficiency curve based on a two-dimensional coordinate system, and two-dimensional coordinates.
- the horizontal axis of the system identifies the cooling capacity, and the ordinate axis of the two-dimensional coordinate system identifies the COP energy efficiency of each chiller.
- the performance data of each cold water host of the central air conditioning system can be collected and learned for a period of time, and a complete targeted performance data is formed, and the performance data is statistically analyzed to form a first performance curve.
- S302 forming performance curves of various cold water host combinations according to the plurality of first performance curves, and obtaining a second performance curve corresponding to each combination, wherein each second performance curve identifies a central air conditioning system under a combination of cold water hosts Refrigeration performance.
- FIG. 5 is a schematic diagram of a performance curve of various cold water host combinations according to an embodiment of the present disclosure, which includes a plurality of second performance curves 51, and the second performance curve 51 is a power curve based on a two-dimensional coordinate system.
- the abscissa axis of the two-dimensional coordinate system identifies the cooling capacity
- the ordinate axis of the two-dimensional coordinate system identifies the total power of the various chiller combinations
- each of the second performance curves identifies a central air conditioner under the combination of a chiller The cooling performance of the system.
- FIG. 6 is a schematic diagram of another performance curve of various cold water host combinations according to an embodiment of the present disclosure, which includes a plurality of second performance curves 61, and the second performance curve 61 is a COP based on a two-dimensional coordinate system.
- the energy efficiency curve, the abscissa axis of the two-dimensional coordinate system identifies the cooling capacity, and the ordinate axis of the two-dimensional coordinate system identifies the COP energy efficiency under various cold water host combinations, wherein each second performance curve identifies a combination of a cold water host
- the cooling performance of the central air conditioning system The cooling performance of the central air conditioning system.
- S303 Generate a preset chiller performance curve according to the second performance curve corresponding to each combination.
- the preset chiller performance curve identifies the total cooling capacity for the total total load, which minimizes the total power of the central air conditioning system, or the combination of chillers with the highest COP energy efficiency.
- the preset embodiment may also determine a preset number of possible total load cooling capacity prediction values; for each predicted value, determine a second performance curve corresponding to each combination, The parameter values corresponding to the predicted values are obtained, and a plurality of parameter values corresponding to each predicted value are obtained; and among the plurality of parameter values, the parameter values satisfying the preset target are used as the target parameter values, and the target parameters corresponding to each predicted value are obtained. a value; generating a preset chiller performance curve based on the plurality of predicted values and corresponding target parameter values.
- the preset number can be set by the user according to actual usage requirements, or can be preset by the central air conditioning factory program, which is not limited.
- the preset number may be taken as many as possible, for example, 50.
- FIG. 5 a plurality of second performance curves 51 are included, and then 50 predicted values may be determined first, and the predicted values may be, for example, any 50 cooling capacity on the abscissa axis shown in FIG. 5. Then, for each predicted value, the following operation is performed: determining the parameter value corresponding to the predicted value on each second performance curve, then, since the second performance curve in FIG. 5 is the power based on the two-dimensional coordinate system For the curve, the corresponding parameter value is the total power. Since there are multiple second performance curves, each predicted value has multiple corresponding total powers, and then multiple total powers corresponding to each predicted value can be used. In the middle, the total value of the minimum value is used as the target parameter value.
- each predicted value has a corresponding target parameter value.
- a predicted value and its corresponding target parameter value it can be mapped to the above-mentioned FIG. For a coordinate point, see the mark 22 in Fig. 2.
- the preset chiller performance curve as shown in Fig. 2 can be formed.
- a plurality of second performance curves 61 are included in FIG. 6, and then 50 predicted values may be determined first, and the predicted values may be, for example, any 50 on the abscissa axis shown in FIG. 6. The amount of cooling, and then, for each predicted value, the following operation is performed: determining the parameter value corresponding to the predicted value on each second performance curve, then, since the second performance curve in FIG.
- FIG. 7 is a schematic diagram of another preset chiller performance curve in the embodiment of the present disclosure, and the preset chiller performance curve 71 shown in FIG. 7 is a COP energy efficiency curve based on a two-dimensional coordinate system.
- the mark 72 is a coordinate point on the preset chiller performance curve
- the coordinate point may be any coordinate point on the preset chiller performance curve
- the abscissa axis of the two-dimensional coordinate system identifies the cooling capacity
- the ordinate axis of the dimensional coordinate system identifies the COP energy efficiency of the central air conditioning system.
- the preset chiller performance curve as shown in Fig. 7 can be formed from a plurality of predicted values and corresponding target parameter values.
- each of the second performance curves identifies the cooling performance of the central air conditioning system under a chiller combination.
- the optimal combination of multiple cold water host units in a complex machine room can be found in advance, that is, to find the lowest power (highest COP energy efficiency) chiller combination state point, and then support the subsequent start of the chiller according to the control parameters in this state,
- the operation under the parameters that can reach the optimal state can quickly determine the optimal combination of the chiller and improve the intelligent control efficiency of the optimization control.
- FIG. 8 is a schematic structural diagram of a chiller control device of a central air conditioning system according to an embodiment of the present disclosure.
- the apparatus 800 includes:
- the first obtaining module 801 is configured to acquire a total load cooling capacity of the central air conditioning system.
- the first determining module 802 is configured to determine a target chiller combination according to the total load cooling capacity, and determine an operating parameter corresponding to each target chiller in the target chiller combination according to the total load cooling capacity.
- the control module 803 is configured to control each target chiller in the target chiller combination to perform cooling with respective operating parameters.
- the first determining module 802 includes:
- the first determining sub-module 8021 is configured to determine, according to the total load cooling capacity, a corresponding chiller combination from the preset chiller performance curve as the target chiller combination.
- the first determining module 802 further includes:
- the second determining sub-module 8022 is configured to determine a cooling capacity corresponding to each target chiller in the target chiller combination when the target chiller combination is met and the total running cooling capacity is met.
- the generating sub-module 8023 is configured to generate an operating parameter according to the cooling capacity corresponding to each target chiller to obtain a corresponding operating parameter.
- FIG. 9 wherein
- the first obtaining module 801 is further configured to dynamically acquire the current total load cooling capacity of the central air conditioning system during the cooling process of each target chiller in the target chiller combination.
- Apparatus 800 also includes:
- the second determining module 804 is configured to determine a change amount between the current total load cooling capacity and the total load cooling capacity.
- the update module 805 is configured to update the total load cooling capacity by using the current total load cooling capacity when the variation meets the preset condition.
- the first determining module 802 is further configured to re-determine the target chiller combination according to the updated total load cooling capacity.
- the method further includes:
- the second obtaining module 806 is configured to obtain a first performance curve of each chiller in the central air conditioning system, and obtain a plurality of first performance curves.
- the processing module 807 is configured to form performance curves of various cold water host combinations according to the plurality of first performance curves, and obtain a second performance curve corresponding to each combination, wherein each second performance curve identifies a combination of a cold water host Refrigeration performance of the central air conditioning system;
- the generating module 808 is configured to generate a preset chiller performance curve according to the second performance curve corresponding to each combination.
- the generating module 808 is specifically configured to:
- the preset chiller performance curve is generated according to the plurality of predicted values and the corresponding target parameter values.
- the preset chiller performance curve is a power curve based on a two-dimensional coordinate system
- the abscissa axis of the two-dimensional coordinate system identifies the total load cooling capacity
- the ordinate axis of the two-dimensional coordinate system identifies the central air conditioner. The total power of the system.
- the parameter value is the total power
- the generating module 808 is specifically configured to:
- the total power with the smallest value among the plurality of total powers is taken as the target parameter value.
- the preset chiller performance curve is a COP energy efficiency curve based on a two-dimensional coordinate system, and an abscissa axis identifier of the two-dimensional coordinate system.
- the total load cooling capacity, the ordinate axis of the two-dimensional coordinate system identifies the COP energy efficiency of the central air conditioning system.
- the parameter value is COP energy efficiency
- the generating module 808 is specifically configured to:
- the COP energy efficiency with the largest value is taken as the target parameter value.
- each module in the chiller control device 800 of the central air conditioning system is for illustrative purposes only. In other embodiments, the chiller control device of the central air conditioning system may be divided into different modules as needed to complete the central air conditioning. All or part of the functionality of the system's chiller control unit.
- the target chiller combination determined according to the total load cooling capacity is a chiller combination capable of achieving the optimal performance of the central air conditioning system, it is possible to directly open the chiller combination to the unit startup. It is suitable for the optimal combination of the actual load cooling capacity of the building, and improves the intelligent control effect and system stability of the central air-conditioning system optimization control, so that the efficiency utilization of the central air-conditioning system is maximized.
- portions of the present disclosure can be implemented in hardware, software, firmware, or a combination thereof.
- multiple steps or methods may be implemented in software or firmware stored in a 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 well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
- each functional unit in various embodiments of the present disclosure may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
- the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
- the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
- the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
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Abstract
Description
Claims (21)
- 一种中央空调***的冷水主机控制方法,其特征在于,包括以下步骤:获取中央空调***的总负荷制冷量;根据所述总负荷制冷量确定目标冷水主机组合,以及根据所述总负荷制冷量确定所述目标冷水主机组合中各目标冷水主机对应的运行参数;控制所述目标冷水主机组合中各目标冷水主机,以各自对应的运行参数进行制冷。
- 如权利要求1所述的中央空调***的冷水主机控制方法,其特征在于,所述根据所述总负荷制冷量确定目标冷水主机组合,包括:根据所述总负荷制冷量,从预设冷水主机性能曲线中确定出对应的冷水主机组合作为所述目标冷水主机组合。
- 如权利要求2所述的中央空调***的冷水主机控制方法,其特征在于,所述根据所述总负荷制冷量确定所述目标冷水主机组合中各目标冷水主机对应的运行参数,包括:确定在所述目标冷水主机组合下,且满足所述总运行制冷量时,所述目标冷水主机组合中各目标冷水主机对应的制冷量;根据所述各目标冷水主机对应的制冷量生成运行参数,以得到所述对应的运行参数。
- 如权利要求1所述的中央空调***的冷水主机控制方法,其特征在于,还包括:在所述目标冷水主机组合中各目标冷水主机进行制冷过程中,动态获取所述中央空调***的当前总负荷制冷量;确定所述当前总负荷制冷量和所述总负荷制冷量之间的变化量;若所述变化量满足预设条件,则采用所述当前总负荷制冷量对所述总负荷制冷量进行更新;根据所更新得到的总负荷制冷量重新确定目标冷水主机组合。
- 如权利要求2-3任一项所述的中央空调***的冷水主机控制方法,其特征在于,在所述获取中央空调***的总负荷制冷量之前,还包括:获取所述中央空调***中各冷水主机的第一性能曲线,得到多条第一性能曲线;根据所述多条第一性能曲线形成各种冷水主机组合下的性能曲线,得到与各组合对应的第二性能曲线,其中的每条第二性能曲线标识一种冷水主机组合下的中央空调***的制冷性能;根据所述各组合对应的第二性能曲线生成所述预设冷水主机性能曲线。
- 如权利要求5所述的中央空调***的冷水主机控制方法,其特征在于,所述根据所述各组合对应的第二性能曲线生成所述预设冷水主机性能曲线,包括:确定预设个数的可能的总负荷制冷量的预测值;针对每个预测值,确定在所述各组合对应的第二性能曲线上,每个预测值对应的参数值,得到与所述每个预测值对应的多个参数值;确定所述多个参数值中,满足预设目标的参数值作为目标参数值,得到与所述每个预测值对应的目标参数值;根据所述多个预测值及所述对应的目标参数值生成所述预设冷水主机性能曲线。
- 如权利要求6所述的中央空调***的冷水主机控制方法,其特征在于,所述预设冷水主机性能曲线为基于二维坐标系的功率曲线,所述二维坐标系的横坐标轴标识总负荷制冷量,所述二维坐标系的纵坐标轴标识所述中央空调***的总功率。
- 如权利要求7所述的中央空调***的冷水主机控制方法,其特征在于,在所述预设冷水主机性能曲线为基于二维坐标系的功率曲线时,所述参数值为总功率,所述确定所述多个参数值中,满足预设目标的参数值作为目标参数值,包括:将所述多个总功率中,值最小的总功率作为所述目标参数值。
- 如权利要求6-8任一项所述的中央空调***的冷水主机控制方法,其特征在于,在所述冷水主机的出水口配置有流量计及温度传感器时,所述预设冷水主机性能曲线为基于二维坐标系的Coefficient Of Performance能效曲线,所述二维坐标系的横坐标轴标识总负荷制冷量,所述二维坐标系的纵坐标轴标识所述中央空调***的COP能效。
- 如权利要求9所述的中央空调***的冷水主机控制方法,其特征在于,在所述预设冷水主机性能曲线为基于二维坐标系的COP能效曲线时,所述参数值为COP能效,所述确定所述多个参数值中,满足预设目标的参数值作为目标参数值,包括:将所述多个COP能效中,值最大的COP能效作为所述目标参数值。
- 一种中央空调***的冷水主机控制装置,其特征在于,包括:第一获取模块,用于获取中央空调***的总负荷制冷量;第一确定模块,用于根据所述总负荷制冷量确定目标冷水主机组合,以及根据所述总负荷制冷量确定所述目标冷水主机组合中各目标冷水主机对应的运行参数;控制模块,用于控制所述目标冷水主机组合中各目标冷水主机,以各自对应的运行参数进行制冷。
- 如权利要求11所述的中央空调***的冷水主机控制装置,其特征在于,所述第一 确定模块,包括:第一确定子模块,用于根据所述总负荷制冷量,从预设冷水主机性能曲线中确定出对应的冷水主机组合作为所述目标冷水主机组合。
- 如权利要求12所述的中央空调***的冷水主机控制装置,其特征在于,所述第一确定模块,还包括:第二确定子模块,用于确定在所述目标冷水主机组合下,且满足所述总运行制冷量时,所述目标冷水主机组合中各目标冷水主机对应的制冷量;生成子模块,用于根据所述各目标冷水主机对应的制冷量生成运行参数,以得到所述对应的运行参数。
- 如权利要求11所述的中央空调***的冷水主机控制装置,其特征在于,其中,所述第一获取模块,还用于在所述目标冷水主机组合中各目标冷水主机进行制冷过程中,动态获取所述中央空调***的当前总负荷制冷量;所述装置还包括:第二确定模块,用于确定所述当前总负荷制冷量和所述总负荷制冷量之间的变化量;更新模块,用于在所述变化量满足预设条件时,采用所述当前总负荷制冷量对所述总负荷制冷量进行更新;所述第一确定模块,还用于根据所更新得到的总负荷制冷量重新确定目标冷水主机组合。
- 如权利要求12-13任一项所述的中央空调***的冷水主机控制装置,其特征在于,还包括:第二获取模块,用于获取所述中央空调***中各冷水主机的第一性能曲线,得到多条第一性能曲线;处理模块,用于根据所述多条第一性能曲线形成各种冷水主机组合下的性能曲线,得到与各组合对应的第二性能曲线,其中的每条第二性能曲线标识一种冷水主机组合下的中央空调***的制冷性能;生成模块,用于根据所述各组合对应的第二性能曲线生成所述预设冷水主机性能曲线。
- 如权利要求15所述的中央空调***的冷水主机控制装置,其特征在于,所述生成模块,具体用于:确定预设个数的可能的总负荷制冷量的预测值;针对每个预测值,确定在所述各组合对应的第二性能曲线上,每个预测值对应的参数值, 得到与所述每个预测值对应的多个参数值;确定所述多个参数值中,满足预设目标的参数值作为目标参数值,得到与所述每个预测值对应的目标参数值;根据所述多个预测值及所述对应的目标参数值生成所述预设冷水主机性能曲线。
- 如权利要求16所述的中央空调***的冷水主机控制装置,其特征在于,所述预设冷水主机性能曲线为基于二维坐标系的功率曲线,所述二维坐标系的横坐标轴标识总负荷制冷量,所述二维坐标系的纵坐标轴标识所述中央空调***的总功率。
- 如权利要求17所述的中央空调***的冷水主机控制装置,其特征在于,在所述预设冷水主机性能曲线为基于二维坐标系的功率曲线时,所述参数值为总功率,所述生成模块,具体用于:将所述多个总功率中,值最小的总功率作为所述目标参数值。
- 如权利要求16-18任一项所述的中央空调***的冷水主机控制装置,其特征在于,在所述冷水主机的出水口配置有流量计及温度传感器时,所述预设冷水主机性能曲线为基于二维坐标系的COP能效曲线,所述二维坐标系的横坐标轴标识总负荷制冷量,所述二维坐标系的纵坐标轴标识所述中央空调***的COP能效。
- 如权利要求19所述的中央空调***的冷水主机控制装置,其特征在于,在所述预设冷水主机性能曲线为基于二维坐标系的COP能效曲线时,所述参数值为COP能效,所述生成模块,具体用于:将所述多个COP能效中,值最大的COP能效作为所述目标参数值。
- 一种中央空调***的冷水主机控制***,其特征在于,包括:如权利要求11-20任一项所述的中央空调***的冷水主机控制装置。
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CN112283890A (zh) * | 2020-10-26 | 2021-01-29 | 济中节能技术(苏州)有限公司 | 适应建筑暖通设备监控***的冷热量控制方法及装置 |
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