CN109556240B - Control method and device of air conditioning system, machine room air conditioning system and computer equipment - Google Patents
Control method and device of air conditioning system, machine room air conditioning system and computer equipment Download PDFInfo
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- CN109556240B CN109556240B CN201811522451.6A CN201811522451A CN109556240B CN 109556240 B CN109556240 B CN 109556240B CN 201811522451 A CN201811522451 A CN 201811522451A CN 109556240 B CN109556240 B CN 109556240B
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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
Abstract
The invention relates to a control method of an air conditioning system, which comprises the following steps: determining the water system type of the air conditioning system; determining a control strategy of the air conditioning system according to the water system type; and controlling the air conditioning system according to the control strategy. The scheme of the invention can effectively reduce the cost.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a control method and device of an air conditioning system and a machine room air conditioning system.
Background
Air conditioning systems can be divided into three categories, namely a central air conditioning water system, a fluorine system and an air system; the air-conditioning water system takes water as a refrigerant, is larger than the traditional fluorine system, is generally used for large buildings, and needs to be controlled by a monitoring system.
Because the monitoring systems corresponding to different air-conditioning water systems are different, different air-conditioning monitoring systems need to be designed according to different air-conditioning water systems, more manpower and material resources need to be consumed, and the cost is higher.
Therefore, the prior art has the problem of high cost.
Disclosure of Invention
The invention aims to provide a control method and device of an air conditioning system and a machine room air conditioning system, which can control different air conditioning systems and effectively reduce the cost.
The purpose of the invention is realized by the following technical scheme:
a method of controlling an air conditioning system, the method comprising:
determining the water system type of the air conditioning system;
determining a control strategy of the air conditioning system according to the water system type;
and controlling the air conditioning system according to the control strategy.
A control device of an air conditioning system, the device comprising:
the water system determining module is used for determining the water system type of the air conditioning system;
the control strategy acquisition module is used for determining a control strategy of the air conditioning system according to the water system;
and the control module is used for controlling the air conditioning system according to the control strategy.
A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program implements the steps of:
determining the water system type of the air conditioning system;
determining a control strategy of the air conditioning system according to the water system type;
and controlling the air conditioning system according to the control strategy.
A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of:
determining the water system type of the air conditioning system;
determining a control strategy of the air conditioning system according to the water system type;
and controlling the air conditioning system according to the control strategy.
A machine room air conditioning system comprises an air conditioning system and a controller for controlling the air conditioning system;
the controller is used for determining the water system type of the air conditioning system;
determining a control strategy of the air conditioning system according to the water system type;
and controlling the air conditioning system according to the control strategy.
The invention provides a control method of an air conditioning system, which determines the type of a water system of the air conditioning system; determining a control strategy of the air conditioning system according to the water system; and then, the air conditioning system is controlled according to the control strategy, different machine room air conditioning monitoring systems do not need to be designed for different water systems, different air conditioning systems can be controlled, and the cost is effectively reduced.
Drawings
FIG. 1 is a diagram of an exemplary control system for an air conditioning system;
FIG. 2 is a flow chart illustrating a method for controlling an air conditioning system according to an embodiment;
FIG. 3 is a schematic diagram of a first water system configuration in one embodiment;
FIG. 4 is a schematic diagram of a second water system configuration in accordance with an embodiment;
FIG. 5 is a schematic diagram of a third water system in one embodiment;
FIG. 6 is a schematic diagram of a fourth water system in one embodiment;
FIG. 7 is a schematic diagram of a control interface for an air conditioning system in one embodiment;
FIG. 8 is a flowchart illustrating a method of controlling an air conditioning system according to one embodiment;
FIG. 9 is a flowchart illustrating a method of controlling an air conditioning system according to one embodiment;
FIG. 10 is a flowchart illustrating a method of controlling an air conditioning system according to an embodiment;
FIG. 11 is a flowchart illustrating a method of controlling an air conditioning system according to one embodiment;
FIG. 12 is a flowchart illustrating a method of controlling an air conditioning system according to one embodiment;
fig. 13 is a flowchart illustrating a control method of an air conditioning system according to another embodiment;
fig. 14 is a block diagram showing a configuration of a control device of an air conditioning system in one embodiment;
FIG. 15 is a diagram showing an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The control method of the air conditioning system provided by the application can be applied to the application environment shown in fig. 1. Specifically, the server determines the type of a water system of the air conditioning system and acquires equipment parameters of the air conditioning system; the equipment parameters comprise the number of equipment, the type of the equipment and the running state of the equipment; determining a control strategy of the air conditioning system according to the water system and the equipment parameters; and the server controls the air conditioning system according to the optimization control strategy. The server may be implemented by an independent server or a server cluster composed of a plurality of servers.
In one embodiment, as shown in fig. 2, a method for controlling an air conditioning system is provided, which is described by taking the method as an example applied to the server in fig. 1, and includes the following steps:
step S201, determining the water system type of the air conditioning system.
Wherein, the water system of the air conditioning system can be a cooling water system, a chilled water system or a hot water system, and generally adopts a single pipe, wherein the circulating temperature in summer is lower than the chilled water of 20 ℃, and the circulating temperature in winter is higher than the hot water of 60 ℃.
Referring to fig. 3 to 6, a typical water system device generally includes a cooling tower fan 301, a chilled water pump 302, a cooling water pump 303, and an air conditioning unit 304, where the air conditioning unit is a short term cold water unit of an air conditioner, and the air conditioning unit is an air treatment device assembled by various air treatment functional segments, the air conditioning unit in this application includes a condenser and an evaporator, because the connection relationship between the chilled water pump 302, the cooling water pump 303, and the air conditioning unit 304 is different (in the following four connection relationships, the connection manner of the cooling tower fan 301 is the same, and two cooling tower fans 301 are respectively connected in parallel and then connected in series with other devices), and the water system type includes the following four types:
as shown in fig. 3, in the first water system, the chilled water pumps 302 are respectively connected in parallel, the cooling water pumps 303 are respectively connected in parallel, and the two air conditioning units 304 are respectively connected in parallel and then connected in series, wherein the condensers in the air conditioning units 304 are connected in parallel and then connected in series with the cooling water pumps 303 connected in parallel, and the evaporators in the air conditioning units 304 are connected in parallel and then connected in series with the chilled water pumps 302 connected in parallel.
As shown in fig. 4, the second water system, the cooling water pump 303 is connected in series with the condenser and the evaporator of the air conditioning unit 304, the chilled water pump 302 is connected in parallel, and then connected in series with the two air conditioning units 304.
As shown in fig. 5, the third water system, the chilled water pump 302 and the condensers and evaporators of the two air conditioning units 304 are connected in series, and the cooling water pumps 303 are each connected in parallel and then connected in series with the air conditioning units 304.
As shown in fig. 6, in the fourth water system, the number of the cooling water pumps 302, the air conditioning unit 304, and the chilled water pump 303 connected in series is two, and each of the cooling water pumps 302, the condenser in the air conditioning unit 304, the evaporator in the air conditioning unit 304, and the chilled water pump 303 are connected in series and then connected in parallel.
Step S202, determining a control strategy of the air conditioning system according to the type of the water system;
the control strategy comprises at least one of a system opening strategy, a system closing strategy, a system loading strategy and a waterway loading and unloading strategy.
The system starting strategy refers to starting time and sequence of equipment in the air conditioning system; the system shutdown strategy refers to the shutdown time and sequence of the equipment in the air conditioning system.
For example, for the first water system described above, the control strategy may include: in the following step 9:00 starting two air conditioning units 304, 9:05 turn on three chilled water pumps 302, 9:10 turn on three cooling water pumps 303, 9:15 turn on cooling tower fan 301.
The water circuit loading and unloading strategy comprises loading or unloading time sequences of available water circuits and equipment in the air conditioning system, wherein the water circuits are complete water cooling routes for cooling formed by a plurality of preset equipment.
In the specific implementation process, the waterway load and load reduction strategy depends on the operation energy consumption of the air conditioning system.
The operating energy consumption of the air conditioning system refers to the amount of heat that needs to be removed from the room or the amount of heat that needs to be added by the air conditioning equipment to maintain the room temperature within an allowable fluctuation range under the condition that the air conditioning equipment adopts a certain operating mode (continuous air conditioning or intermittent air conditioning).
In the specific implementation process, a plurality of water system types and a plurality of control strategies are collected by a debugging person and prestored in a database of the control device, the water system types correspond to the control strategies respectively, other parameters of the air conditioning system are fixed and unchanged, and only the water system types are distinguished, so that the debugging person only needs to input the water system types to the control device to inquire the control strategies corresponding to the input water system types.
And S203, controlling the air conditioning system according to the control strategy.
In a specific implementation process, a debugging person can input the determined water system type into a control device of the air conditioning system, and the control device outputs at least one of a system opening strategy, a system closing strategy, a system loading strategy and a system unloading strategy to control the air conditioning system.
As shown in fig. 7, the type of the water system input by the debugger at the control device interactive interface is a first water system, the number of the air conditioning system default air conditioning units is 2, the type of the air conditioning unit is "centrifuge screw type", the type of the cooling water pump is "frequency conversion", the number of the cooling water pump is "3", the type of the chilled water pump is "frequency conversion", the number of the chilled water pump is "2", and the control device output system start strategy is: the starting time of the cooling water pump is 9:00, the starting time of the freezing water pump is 9:05, the starting time of the air conditioning unit is 9:10, and the system closing strategy is as follows: the closing time of the cooling water pump is 10:00, the closing time of the freezing water pump is 10:05, and the closing time of the air conditioning unit is 10: 10.
In a specific implementation process, the system starting strategy comprises the starting time and the starting sequence of each device in the air-conditioning system, and the control device sequentially controls each device in the air-conditioning system to start to operate according to the starting time and the starting sequence of each device.
For example, the system on policy is 9:00 starting two air conditioning units 304, 9:05 starting six chilled water pumps 302, 9:10, six cooling water pumps 303 are started, 9:15, and the cooling tower fan 301 is started, the control device starts all the equipment in sequence according to time and sequence.
In a specific implementation process, the water path load and unload strategy comprises load/unload time and a load/unload sequence of equipment or available water paths in the air conditioning system, and the control device loads/unloads the equipment or the water paths in sequence according to the load/unload time and the load/unload sequence of the equipment or the available water paths.
For example, the water path loading and unloading strategy is that on the basis of the system starting strategy, a group of air conditioning units 304 is loaded at 10:00, and an available water path is loaded at 10: 30.
In the specific implementation process, the waterway load and load reduction strategy depends on the operation energy consumption of the air conditioning system.
The operating energy consumption of the air conditioning system refers to the amount of heat that needs to be removed from the room or the amount of heat that needs to be added by the air conditioning equipment to maintain the room temperature within an allowable fluctuation range under the condition that the air conditioning equipment adopts a certain operating mode (continuous air conditioning or intermittent air conditioning).
In other embodiments, the operation energy consumption of the air conditioning system can be obtained, and a waterway load and unload strategy is determined according to the operation energy consumption of the air conditioning system; or the debugging personnel inputs a water path load-shedding strategy to the control device according to the load condition of the air conditioning system operation site.
In a specific implementation process, the system shutdown strategy comprises the shutdown time and the shutdown sequence of each device in the air-conditioning system, and the control device controls each device in the air-conditioning system to stop running in sequence according to the shutdown time and the shutdown sequence of each device.
For example, the system shutdown policy is 12: 00 turning off two air conditioning units 304, 12: 05 shut down six chilled water pumps 302, 12: the six cooling water pumps 303 are turned off at 10, and the cooling tower fan 301 is turned off at 12:15, then the control device turns off the devices in sequence according to time and sequence.
According to the technical scheme of the embodiment of the application, the type of a water system of the air-conditioning system is determined; according to the water system, the control strategy of the air conditioning system is determined, and under the condition that the equipment parameters of the air conditioning system are fixed, different machine room air conditioning monitoring systems do not need to be designed for different water systems, so that different air conditioning systems can be controlled, and the cost is effectively reduced.
In one embodiment, as shown in fig. 8, determining the control strategy of the air conditioning system according to the water system type includes:
step S2021, acquiring equipment parameters of the air conditioning system; the equipment parameters comprise the number of equipment, the type of the equipment and the running state of the equipment;
the device operation state comprises a usable state and a fault state.
The combination configuration parameters and the corresponding ranges determined according to the device connection mode, the device type, and the device number may be as shown in table 1 below.
Table 1 example of combined configuration parameters
When different air conditioning systems have different equipment parameters, debugging personnel collect various equipment parameters, various water system types and various control strategies and store the parameters in a database of a control device in advance, wherein each control strategy corresponds to the water system type and the equipment parameters respectively.
Step S2022, determining a control strategy of the air conditioning system according to the water system type and the equipment parameter.
In the specific implementation process, a database is arranged in the control device, a plurality of control strategies and equipment parameters and water system types corresponding to the control strategies are prestored in the database, the debugging personnel input the determined water system types and equipment parameters into the control device, and the control device inquires the control strategies corresponding to the input water system types and equipment parameters and outputs the control strategies.
In another implementation manner, the commissioning personnel may also adjust the on-off time, the on-off sequence, and the like of various devices in the control device, and the control device outputs at least one of a system on policy, a system off policy, and a water path load and unload policy to control the air conditioning system.
As shown in fig. 7, the debugging personnel inputs the type of the water system into the first water system at the interactive interface of the control device, the number of the input air conditioning units is 2, the type of the air conditioning units is "centrifuge screw type", the type of the cooling water pump inputs "frequency conversion", the number of the cooling water pump inputs "3", the type of the freezing water pump inputs "frequency conversion", the number of the freezing water pump inputs "2", and the control device output system starts the strategy: the starting time of the cooling water pump is 9:00, the starting time of the freezing water pump is 9:05, the starting time of the air conditioning unit is 9:10, and the system closing strategy is as follows: the closing time of the cooling water pump is 10:00, the closing time of the freezing water pump is 10:05, and the closing time of the air conditioning unit is 10: 10.
In one embodiment, as shown in fig. 9, determining a water system of an air conditioning system specifically includes:
step S2011, acquiring the equipment connection relation of the air conditioning system;
specifically, the connection of the devices is closed, which includes parallel connection, series connection, parallel connection before series connection, series connection before parallel connection, and the like.
For example, it is determined whether the chilled water pump 302, the cooling water pump 303, and the air conditioning unit 304 are connected in parallel or connected in series and then connected in parallel, and a commissioning worker may input the connection relationship of the devices into the control device to perform the next inquiry operation.
And S2012, inquiring the water system type corresponding to the equipment connection relation.
In the specific implementation process, information of different types of water systems is collected and stored in a database, and the information of the water systems comprises information of equipment types, connection relations among the equipment and the like included in each type of water system.
In the specific implementation process, a debugging person can input the connection relation of each device into the control device, and the control device matches the received connection relation of the field devices with the connection modes of various water systems in the database, so that the corresponding water systems are inquired.
In another embodiment, the control device may provide a plurality of device connection relationships for a commissioning person to select, and after the commissioning person selects, the control device outputs the same type of water system corresponding to the selected device connection relationship.
In one embodiment, the control device may receive water system types sent by a user terminal, the user terminal is configured to select the water system types from preset candidate water system types according to system type configuration operations of the user terminal, that is, a commissioning worker may input connection relationships of each device to the user terminal, the user terminal sends the device connection relationships to the control device, and the control device matches the received connection relationships of the field devices with connection manners of multiple water systems in the database, so as to query the corresponding water systems.
For example, a debugger acquires from the site that four chilled water pumps 302 are connected in parallel, four cooling water pumps 303 are connected in parallel, and four air conditioning units 304 are connected in parallel and then connected in series, and inputs the connection relationship into the control device, and the information of various water systems stored in the database to match, so that the type of the water system of the air conditioning water system at the time can be inquired as the first water system.
In another implementation process, a debugging person can also obtain the connection relation of each device from the site, then automatically judge the type of the water system, then input the obtained type of the water system into the control device, the control device queries the initial control strategy stored in the database and corresponding to the input type of the water system, and calls the queried initial control strategy for the debugging person to check.
In one embodiment, the equipment of the water system includes at least one of a chilled water pump, a cooling water pump and an air conditioning unit, and the query of the water system corresponding to the connection relationship of the equipment includes:
when the chilled water pump, the cooling water pump and the air conditioning unit are respectively connected in parallel, the water system is a first water system;
in a specific implementation process, different equipment connection modes may correspond to different water system types, and the equipment connection modes corresponding to different water system types are described in the above embodiments and are not described herein again.
For example, when a debugger acquires that four chilled water pumps 302 are connected in parallel, four cooling water pumps 303 are connected in parallel, and four air conditioning units 304 are connected in parallel and then connected in series, the connection relationship is input to the control device, the control device is matched with information of various water systems stored in the database, and the type of the water system of the air conditioning water system at the moment can be inquired to be the first water system.
When the chilled water pump is connected with the air conditioning unit in series, and the cooling water pumps are connected in parallel and then connected with the air conditioning unit in series, the water system is a second water system;
for example, the debugger acquires that four chilled water pumps 302 are connected in series with two air conditioning units 304, four cooling water pumps 303 are connected in series with the air conditioning units 304 after being connected in parallel, and inputs the connection relationship into the control device, the control device and the information of various water systems stored in the database to be matched, so that the type of the water system of the air conditioning water system at the moment can be inquired to be the second water system.
When the cooling water pump is connected with the air conditioning unit in series, and the chilled water pumps are connected in parallel and then connected with the air conditioning unit in series, the water system is a third water system;
for example, the debugger acquires that four cooling water pumps 303 are connected in series with two air conditioning units 304, four chilled water pumps 302 are connected in series with the air conditioning units 304 after being connected in parallel, and inputs the connection relationship into the control device, the control device and the information of various water systems stored in the database to be matched, so that the type of the water system of the air conditioning water system at the moment can be inquired to be the third water system.
And when the cooling water pump, the chilled water pump and the air conditioning unit which are connected in series are connected in parallel, the water system is a fourth water system.
For example, when a debugger acquires that four chilled water pumps, four cooling water pumps 303, and four air conditioning units 304 are connected in series and then in parallel, the connection relationship is input to the control device, and the information of various water systems stored in the database for matching, and the type of the water system of the air conditioning water system at the time can be inquired as the fourth water system.
In one embodiment, the determining a control strategy for the air conditioning system based on the water system and the equipment parameters includes:
and inquiring stored control strategies respectively matched with the water system and the equipment parameters according to the water system and the equipment parameters.
In the specific implementation process, a database is arranged in the control device, a plurality of control strategies and equipment parameters and water system types corresponding to the control strategies are prestored in the database, a debugging worker inputs the water system types and the equipment parameters acquired on site into the control device, and the control device inquires the control strategies corresponding to the input water system types and the equipment parameters and outputs the control strategies.
In one embodiment, as shown in fig. 10, the determining the control strategy of the air conditioning system according to the water system type and the equipment parameter includes:
step S20221, inquiring a stored initial control strategy matched with the water system;
in the specific implementation process, information of different types of water systems and the initial control strategy corresponding to each water system are collected and stored in a database, the connection relations of devices in the different types of water systems are different, and a debugging worker determines the type of the water system through the connection relation of the devices on the spot, so that the initial control strategy corresponding to the determined type of the water system can be inquired in the database.
For example, the water system corresponding to the air conditioning system is determined to be the first water system, the connection mode is that the chilled water pumps 302 are respectively connected in parallel, the cooling water pumps 303 are respectively connected in parallel, and the air conditioning units 304 are respectively connected in parallel and then connected in series, the type of the water system is input into the control device, and the control device outputs an initial control strategy, namely at least one of an initial system opening strategy, an initial system closing strategy and a water path load and load shedding strategy of the air conditioning system, such as the opening time of the chilled water pumps and the opening time of the cooling water pumps.
Step S20222, optimizing the initial control strategy according to the equipment parameters to obtain the control strategy.
In a specific implementation process, a debugging person obtains the number of devices, the types of the devices and the running states of the devices of the air conditioning system on site, and adjusts parameters of the opening time sequence and the closing time sequence of each device in the air conditioning system according to the number of the devices, the types of the devices and the running states of the devices, namely, an initial system opening strategy and an initial system closing strategy of the air conditioning system are optimized.
For example, it is determined that the water system corresponding to the air conditioning system is the water system of the type one described above, and the connection manner is that the chilled water pumps 302 are respectively connected in parallel, the cooling water pumps 303 are respectively connected in parallel, and the air conditioning units 304 are respectively connected in parallel and then connected in series, but the number of the chilled water pumps 302 and the cooling water pumps 303 is six, and therefore adjustment needs to be performed for the initial device turn-on timing and the initial device turn-off timing.
For example, the initial device start-up sequence is to sequentially start up two air conditioning units 304, three chilled water pumps 302 and three cooling water pumps 303, when the number of the chilled water pumps 302 and the cooling water pumps 303 is changed to six, the number of the chilled water pumps 302 and the cooling water pumps 303 is changed in the control device, the start-up sequence and the shut-down sequence of different devices are not changed, and at this time, the start-up sequence of the devices is optimized to sequentially start up the two air conditioning units 304, the six chilled water pumps 302 and the six cooling water pumps 303.
In one embodiment, as shown in FIG. 11, the initial control strategy includes an initial device switch number; optimizing the initial control strategy according to the equipment parameters to obtain the control strategy, wherein the optimizing comprises the following steps:
step S202221, extracting the number of target device switches in the device parameter;
in the specific implementation process, a debugging person obtains the equipment number, the equipment type and the equipment running state of the air conditioning system on site and inputs the equipment number, the equipment type and the equipment running state into a control device of the air conditioning system, and the control device extracts the target equipment switch number in the equipment parameters according to the input equipment parameters.
For example, a debugger inputs that the number of air conditioning units is "2", the model of the air conditioning unit is "centrifuge screw model", the type of the cooling water pump is "variable frequency", the number of the cooling water pump is "3", the type of the chilled water pump is "variable frequency", the number of the chilled water pump is "2", the number of target equipment switches extracted by the control device is "2", the number of the cooling water pumps is "3", and the number of the chilled water pumps is "2".
Step S202222, replacing the initial device switch number of the initial control strategy with the target device switch number to obtain the control strategy.
The initial control strategy comprises an initial system starting strategy, an initial system closing strategy and a waterway load and unload strategy, wherein the initial system starting strategy comprises the starting sequence and the starting number of the devices in the system, the initial system closing strategy comprises the closing sequence and the closing number of the devices in the system, and the switching number of the initial devices is the starting number and the closing number of the initial devices.
For example, for the first water system described above, the initial system start policy is 9:00 the number of the air conditioning units 304 which are started is '2', 9:05 starting the chilled water pumps 302, the number is '3', 9: when the number of 10 started cooling water pumps 303 is "3" and the number of 9:15 started cooling tower fans 301 is "2", when the control device receives that the number of target equipment switches of the freezing water pumps 302 and the cooling water pumps 303 is changed to six and the number of the air conditioning units 304 is not changed, the starting sequence and the closing sequence of different equipment are not changed, and at this time, the starting sequence of the equipment is optimized to be that two groups of air conditioning units 304, six freezing water pumps 302 and six cooling water pumps 303 are sequentially started, namely 9:00 starting two air conditioning units 304, 9:05 starting six chilled water pumps 302, 9: the six cooling water pumps 303 are started at 10, and the cooling tower fan 301 is started at 9: 15.
In one embodiment, as shown in fig. 12, the controlling policy includes a water circuit load or unload policy, and controlling the air conditioning system according to the controlling policy includes:
step S2031, calculating the number of available waterways according to the equipment parameters;
since the water paths are complete water cooling routes formed by the system equipment and used for cooling, the number of the available water paths is the minimum value of the available number of the system equipment, and the control device obtains the number of the available water paths by comparing the number of the available equipment.
In a specific implementation process, the obtained number of available waterways is used for judging whether the actual number of available waterways meets a waterway load and unload strategy in an initial control strategy.
The system equipment comprises at least one of an air conditioning unit, a chilled water pump, a cooling water pump and a cooling tower fan.
In a specific implementation process, the water path load and unload strategy depends on a load condition of the operation of the air conditioning system, that is, the operation energy consumption of the air conditioning system.
In other embodiments, the commissioning personnel may also manually modify the water path load and unload strategy according to the load condition of the air conditioning system operation site.
In another implementation process, a debugging person obtains the equipment number, the equipment type and the equipment running state of the air conditioning system on site to obtain the available water path number, and directly inputs the available water path number into a control device of the air conditioning system.
And S2032, when the number of the available waterways meets the preset number, loading or unloading the available waterways according to the waterway load and unload strategy.
The available water paths are more than or equal to the preset number.
In a specific implementation process, the control device judges whether the number of the available waterways is greater than or equal to a preset number in an initial system loading strategy, if so, the available waterways are loaded or unloaded according to a waterway loading and unloading strategy, and if the number of the available waterways is less than the preset number, the control device gives an alarm to indicate that the number of the available waterways does not meet the requirement of the waterway loading and unloading strategy.
For example, for the first water system, 1 waterway is loaded at 10:00 according to the waterway load/unload strategy, and the calculated available number of waterways is 2, so that 1 waterway can be loaded at 10:00 according to the waterway load/unload strategy.
For example, for the first water system, the water path load and unload strategy is 10:00 for loading 1 water path, the calculated available water path number is 2, the debugger finds that the operating load of the air conditioning system is large, decides to load 2 water paths at 10:00, and because the available water path number is 2, the water path load and unload strategy is modified to 10:00 for loading 2 water paths.
In one embodiment, as shown in fig. 13, the calculating the number of available waterways according to the equipment parameters includes:
step S20311, determining the number of available devices of the system device in the air conditioning system according to the device parameters; the system equipment comprises at least one of an air conditioning unit, a chilled water pump, a cooling water pump and a cooling tower fan;
in the specific implementation process, the field debugging personnel sequentially inquire the running state of the system equipment and determine the number of the equipment in the usable state.
For example, when a controller for controlling the air conditioning unit is on-line, the air conditioning unit is not in failure, and neither a freezing-side butterfly valve nor a cooling-side butterfly valve of the air conditioning unit (ignored if there is no cooling-side butterfly valve) is in failure, the air conditioning unit is in a usable state; when the controller corresponding to the chilled water pump is on line and the chilled water pump has no fault, the chilled water pump can be used; when the controller corresponding to the cooling water pump is on line and the cooling water pump has no fault, the cooling water pump can be used; when the controller corresponding to the cooling tower fan is on line, the cooling tower fan has no fault, and the corresponding cooling tower butterfly valve has no fault, the cooling tower fan can be used and the like, and the number of usable chilled water pumps, usable cooling tower fans and usable air conditioning units is respectively obtained.
In the specific implementation process, a group of available air conditioning units, an available chilled water pump, an available cooling water pump and an available cooling tower fan can form a complete water path.
Step S20312, determining a minimum value of the available equipment number as the available waterway number.
In a specific implementation process, the water paths are complete water cooling routes formed by system equipment and used for cooling, so that the number of available water paths is the minimum value of the available number of the system equipment in the air conditioning system, and the control device obtains the number of available water paths by comparing the number of the available equipment.
For example, for the first water system described above, the water system includes three chilled water pumps 302, three cooling water pumps 303, two air conditioning packs 304, and two cooling tower fans 301, then two complete water paths may be formed.
It should be understood that although the various steps in the flowcharts of fig. 2 and 8-13 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2 and 8-13 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 14, there is provided a control device of an air conditioning system, the device including:
a water system determination module 201, configured to determine a water system type of the air conditioning system;
a control strategy acquisition module 202, configured to determine a control strategy of the air conditioning system according to the water system type;
and the control module 203 is used for controlling the air conditioning system according to the control strategy.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 15. The computer apparatus includes a processor, a memory, a network interface, and a database connected by a device bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The nonvolatile storage medium stores an operating device, a computer program, and a database. The internal memory provides an environment for the operation device in the nonvolatile storage medium and the execution of the computer program. The database of the computer device is used for storing data relating to the control of the air conditioning system. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a control method of an air conditioning system.
Those skilled in the art will appreciate that the architecture shown in fig. 15 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program: determining the water system type of the air conditioning system; determining a control strategy of the air conditioning system according to the water system type; and controlling the air conditioning system according to the control strategy.
In one embodiment, the determining the control strategy of the air conditioning system according to the water system type when the processor executes the computer program comprises: acquiring equipment parameters of an air conditioning system; the equipment parameters comprise the number of equipment, the type of the equipment and the running state of the equipment; and determining a control strategy of the air conditioning system according to the water system type and the equipment parameters.
In one embodiment, the determining the water system type of the air conditioning system when the processor executes the computer program comprises: acquiring the equipment connection relation of an air conditioning system; and inquiring the water system type corresponding to the equipment connection relation.
In one embodiment, the determining the water system type of the air conditioning system includes: and receiving the water system type sent by a user side, wherein the user side is used for selecting the water system type from preset candidate water system types according to the system type configuration operation of the user.
In one embodiment, the querying the water system corresponding to the connection relationship of the equipment when the processor executes the computer program includes: when the parallel chilled water pumps, the parallel cooling water pumps and the parallel air conditioning units are connected in series, the water system type is a first water system; when the chilled water pump is connected with the air conditioning unit in series and the cooling water pump connected in parallel is connected with the air conditioning unit in series, the water system type is a second water system; when the cooling water pump is connected with the air conditioning unit in series and the parallel chilled water pump is connected with the air conditioning unit in series, the water system type is a third water system; and when at least two groups of cooling water pumps, chilled water pumps and air conditioning units which are connected in series are connected in parallel, the water system type is a fourth water system.
In one embodiment, the determining the control strategy of the air conditioning system based on the water system type and the equipment parameter when the processor executes the computer program comprises: and inquiring the stored control strategies respectively matched with the water system and the equipment parameters according to the water system type and the equipment parameters.
In one embodiment, the determining the control strategy of the air conditioning system based on the water system type and the equipment parameter when the processor executes the computer program comprises: querying a stored initial control strategy matched with the water system; and optimizing the initial control strategy according to the equipment parameters to obtain the control strategy.
In one embodiment, the initial control strategy includes an initial number of device switches when the computer program is executed by the processor; optimizing the initial control strategy according to the equipment parameters to obtain the control strategy, wherein the optimizing comprises the following steps: extracting the number of target equipment switches in the equipment parameters; and replacing the initial equipment switch number of the initial control strategy with the target equipment switch number to obtain the control strategy.
In one embodiment, the controlling policy includes a water circuit loading and unloading policy when the processor executes the computer program, and the controlling the air conditioning system according to the controlling policy includes: calculating the number of available waterways according to the equipment parameters; and when the number of the available waterways accords with the preset number, loading or unloading the available waterways according to the waterway load and unload strategy.
In one embodiment, the calculating the available number of waterways based on the device parameters when the processor executes the computer program comprises: determining the number of available equipment of system equipment in the air conditioning system according to the equipment parameters; the system equipment comprises at least one of an air conditioning unit, a chilled water pump, a cooling water pump and a cooling tower fan; determining the minimum value of the available equipment quantity as the available waterway quantity.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: determining the water system type of the air conditioning system; determining a control strategy of the air conditioning system according to the water system type; and controlling the air conditioning system according to the control strategy.
In one embodiment, the computer program when executed by a processor determines a control strategy for the air conditioning system based on the water system type includes: acquiring equipment parameters of an air conditioning system; the equipment parameters comprise the number of equipment, the type of the equipment and the running state of the equipment; and determining a control strategy of the air conditioning system according to the water system type and the equipment parameters.
In one embodiment, the computer program when executed by the processor determines a water system type of the air conditioning system comprises: acquiring the equipment connection relation of an air conditioning system; and inquiring the water system type corresponding to the equipment connection relation.
In one embodiment, the computer program when executed by the processor determines a water system type of the air conditioning system comprises: and receiving the water system type sent by a user side, wherein the user side is used for selecting the water system type from preset candidate water system types according to the system type configuration operation of the user.
In one embodiment, the computer program, when executed by the processor, is configured to query a water system corresponding to the connection relationship of the equipment, including: when the parallel chilled water pumps, the parallel cooling water pumps and the parallel air conditioning units are connected in series, the water system type is a first water system; when the chilled water pump is connected with the air conditioning unit in series and the cooling water pump connected in parallel is connected with the air conditioning unit in series, the water system type is a second water system; when the cooling water pump is connected with the air conditioning unit in series and the parallel chilled water pump is connected with the air conditioning unit in series, the water system type is a third water system; and when at least two groups of cooling water pumps, chilled water pumps and air conditioning units which are connected in series are connected in parallel, the water system type is a fourth water system.
In one embodiment, the computer program when executed by a processor determines a control strategy for the air conditioning system based on the water system type and the equipment parameter comprises: and inquiring the stored control strategies respectively matched with the water system and the equipment parameters according to the water system type and the equipment parameters.
In one embodiment, the computer program when executed by a processor determines a control strategy for the air conditioning system based on the water system type and the equipment parameter comprises: querying a stored initial control strategy matched with the water system; and optimizing the initial control strategy according to the equipment parameters to obtain the control strategy.
In one embodiment, the initial control strategy comprises an initial number of device switches when the computer program is executed by the processor; optimizing the initial control strategy according to the equipment parameters to obtain the control strategy, wherein the optimizing comprises the following steps: extracting the number of target equipment switches in the equipment parameters; and replacing the initial equipment switch number of the initial control strategy with the target equipment switch number to obtain the control strategy.
In one embodiment, the control strategy includes a water circuit loading and unloading strategy when the computer program is executed by the processor, and the controlling the air conditioning system according to the control strategy includes: calculating the number of available waterways according to the equipment parameters; and when the number of the available waterways accords with the preset number, loading or unloading the available waterways according to the waterway load and unload strategy.
In one embodiment, the computer program when executed by the processor calculates the number of available waterways based on the plant parameters, comprises: determining the number of available equipment of system equipment in the air conditioning system according to the equipment parameters; the system equipment comprises at least one of an air conditioning unit, a chilled water pump, a cooling water pump and a cooling tower fan; determining the minimum value of the available equipment quantity as the available waterway quantity.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A control method of an air conditioning system, comprising:
acquiring the equipment connection relation of an air conditioning system;
inquiring the water system type corresponding to the equipment connection relation; the water system types comprise a first water system, a second water system, a third water system and/or a fourth water system; the equipment connection relationship is that when the parallel chilled water pumps, the parallel cooling water pumps and the parallel air conditioning units are connected in series, the equipment connection relationship corresponds to the first water system; the equipment connection relationship is that the chilled water pump and the air conditioning unit are connected in series, and when the cooling water pump and the air conditioning unit which are connected in parallel are connected in series, the equipment connection relationship corresponds to the second water system; the equipment connection relationship is that a cooling water pump and an air conditioning unit are connected in series, and when a freezing water pump and an air conditioning unit which are connected in parallel are connected in series, the equipment connection relationship corresponds to the third water system; the equipment connection relationship is that when at least two groups of cooling water pumps, chilled water pumps and air conditioning units which are connected in series are connected in parallel, the equipment connection relationship corresponds to the fourth water system;
determining a control strategy of the air conditioning system according to the water system type;
and controlling the air conditioning system according to the control strategy.
2. The method as claimed in claim 1, wherein the determining the control strategy of the air conditioning system according to the water system type comprises:
acquiring equipment parameters of an air conditioning system; the equipment parameters comprise the number of equipment, the type of the equipment and the running state of the equipment;
and determining a control strategy of the air conditioning system according to the water system type and the equipment parameters.
3. The method for controlling the air conditioning system according to claim 1, wherein the obtaining of the device connection relationship of the air conditioning system includes:
and acquiring the equipment connection relation of the air conditioning system input to the user side.
4. The control method of an air conditioning system according to claim 1,
in the first water system, condensers in the air conditioning unit are connected in parallel and then connected in series with cooling water pumps connected in parallel, and evaporators in the air conditioning unit are connected in parallel and then connected in series with chilled water pumps connected in parallel;
in the second water system, the cooling water pump is respectively connected with a condenser and an evaporator in the air conditioning unit in series, and the chilled water pumps are respectively connected with the air conditioning unit in series after being connected in parallel;
in the third water system, the chilled water pump is connected with a condenser and an evaporator in the air conditioning unit in series, and the cooling water pumps are connected with the air conditioning unit in series after being respectively connected in parallel;
in the fourth water system, the number of the cooling water pumps, the air conditioning unit and the chilled water pump is multiple, and the condenser, the evaporator and the chilled water pump in each cooling water pump and the air conditioning unit are connected in series and then connected in parallel.
5. The method as claimed in claim 2, wherein the determining the control strategy of the air conditioning system according to the water system type and the equipment parameter comprises:
and inquiring the stored control strategies respectively matched with the water system and the equipment parameters according to the water system type and the equipment parameters.
6. The method as claimed in claim 2, wherein the determining the control strategy of the air conditioning system according to the water system type and the equipment parameter comprises:
inquiring a stored initial control strategy matched with the water system;
and optimizing the initial control strategy according to the equipment parameters to obtain the control strategy.
7. The control method of an air conditioning system according to claim 6, wherein the initial control strategy includes an initial equipment switch number; optimizing the initial control strategy according to the equipment parameters to obtain the control strategy, wherein the optimizing comprises the following steps:
extracting the number of target equipment switches in the equipment parameters;
and replacing the initial equipment switch number of the initial control strategy with the target equipment switch number to obtain the control strategy.
8. The method of claim 2, wherein the control strategy comprises a water circuit load and unload strategy, and the controlling the air conditioning system according to the control strategy comprises:
calculating the number of available waterways according to the equipment parameters;
and when the number of the available waterways accords with the preset number, loading or unloading the available waterways of the air-conditioning system according to the waterway loading and unloading strategy.
9. The method of claim 8, wherein the calculating the number of available waterways based on the plant parameters comprises:
determining the number of available equipment of system equipment in the air conditioning system according to the equipment parameters; the system equipment comprises at least one of an air conditioning unit, a chilled water pump, a cooling water pump and a cooling tower fan;
determining the minimum value of the available equipment quantity as the available waterway quantity.
10. A control device of an air conditioning system, characterized in that the device comprises:
the water system determining module is used for determining the water system type of the air conditioning system; the water system determining module is further specifically used for acquiring the equipment connection relationship of the air conditioning system and inquiring the water system type corresponding to the equipment connection relationship; the water system types comprise a first water system, a second water system, a third water system and/or a fourth water system; the equipment connection relationship is that when the parallel chilled water pumps, the parallel cooling water pumps and the parallel air conditioning units are connected in series, the equipment connection relationship corresponds to the first water system; the equipment connection relationship is that the chilled water pump and the air conditioning unit are connected in series, and when the cooling water pump and the air conditioning unit which are connected in parallel are connected in series, the equipment connection relationship corresponds to the second water system; the equipment connection relationship is that a cooling water pump and an air conditioning unit are connected in series, and when a freezing water pump and an air conditioning unit which are connected in parallel are connected in series, the equipment connection relationship corresponds to the third water system; the equipment connection relationship is that when at least two groups of cooling water pumps, chilled water pumps and air conditioning units which are connected in series are connected in parallel, the equipment connection relationship corresponds to the fourth water system;
the control strategy acquisition module is used for determining a control strategy of the air conditioning system according to the water system type;
and the control module is used for controlling the air conditioning system according to the control strategy.
11. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 9 when executing the computer program.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 9.
13. A machine room air conditioning system is characterized by comprising an air conditioning system and a controller for controlling the air conditioning system;
the controller is for controlling the air conditioning system according to the method of any one of claims 1 to 9.
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| CN113739391B (en) * | 2021-08-23 | 2022-07-15 | 珠海格力电器股份有限公司 | Water pump operation control method and system, air-conditioning water pump and air-conditioning unit |
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