CN116336613A - Control method, device, system and storage medium for multi-split air conditioning system - Google Patents
Control method, device, system and storage medium for multi-split air conditioning system Download PDFInfo
- Publication number
- CN116336613A CN116336613A CN202310311034.1A CN202310311034A CN116336613A CN 116336613 A CN116336613 A CN 116336613A CN 202310311034 A CN202310311034 A CN 202310311034A CN 116336613 A CN116336613 A CN 116336613A
- Authority
- CN
- China
- Prior art keywords
- air conditioning
- conditioning unit
- photovoltaic
- photovoltaic air
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 216
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000005611 electricity Effects 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 4
- 238000004134 energy conservation Methods 0.000 claims description 4
- 230000006870 function Effects 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
- F24F11/47—Responding to energy costs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
- F24F2005/0067—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy with photovoltaic panels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of electric appliances, and particularly discloses a control method, a device, a system and a storage medium of a multi-split air conditioning system. Firstly, detecting electricity demand; stopping the commercial power to supply power for the non-photovoltaic air conditioning unit when the power failure and energy saving are determined to be needed; and providing weak current for the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit so as to enable a target component in the non-photovoltaic air conditioning unit to be in a controllable state. Therefore, when electricity is required to be limited, the mains supply can be actively disconnected and stopped, and weak electricity is supplied to the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit, so that components in the non-photovoltaic air conditioning unit are still in a controllable state after the mains supply is disconnected, and the safety and stability of the system are ensured.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a control method, a device, a system and a storage medium of a multi-split air conditioning system.
Background
According to the building energy consumption statistics, the power consumption of the air conditioner almost accounts for one third of the power consumption of the whole power system, and the photovoltaic air conditioner can utilize the photovoltaic panel to generate electric energy so as to provide electric energy for self operation, so that the consumption of the air conditioner on traditional electric energy such as mains supply is greatly reduced. However, because the cost of the photovoltaic air conditioner is higher, the cost of the simple photovoltaic unit module combination is high, the application occasion is limited, and the economic effect is difficult to realize, so the mode of mixing and overlapping the photovoltaic unit and the non-photovoltaic unit, namely, the scheme of supplying power to the photovoltaic unit through a photovoltaic plate and supplying power to the non-photovoltaic unit through the commercial power, is widely applied.
However, in practical application, because the power supply sources of the photovoltaic air conditioning unit and the non-photovoltaic air conditioning unit are different, when some power supply sources need to be switched or partially closed, components inside the non-photovoltaic air conditioning unit, such as a throttling component, cannot be controlled, and the safety and stability of the whole system are easily caused.
Disclosure of Invention
Accordingly, an objective of the present invention is to provide a method, apparatus, system and storage medium for controlling a multi-split air conditioning system, so as to overcome the above-mentioned problems to at least some extent.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present application provides a control method of a multi-split air conditioning system, which is applied to a multi-split air conditioning system including a photovoltaic air conditioning unit and a non-photovoltaic air conditioning unit, and includes:
determining a power demand, the power demand including power outage and energy conservation;
when the electricity demand is power outage and energy conservation, stopping the commercial power to supply power for the non-photovoltaic air conditioning unit;
and weak current is provided for the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit so that a target component in the non-photovoltaic air conditioning unit is in a controllable state.
Further, receiving an electricity limiting and energy saving instruction or a recovery instruction;
when the electricity limiting and energy saving instruction is received, determining that the electricity consumption requirement is power-off and energy saving;
and when the recovery instruction is received, determining that the power consumption requirement is normal power supply.
Further, the method further comprises the following steps:
when the electricity demand is normal power supply, stopping providing weak current for the non-photovoltaic unit through the photovoltaic air conditioner unit;
and supplying power to the non-photovoltaic unit through a preset mains supply module.
Further, the method further comprises the following steps:
the power supply mode of the non-photovoltaic air conditioning unit and/or the power supply mode switching state of the non-photovoltaic air conditioning unit are/is sent to a preset overall management module, and the preset overall management module is used for controlling the state of a target component in the non-photovoltaic air conditioning unit;
the real-time power supply mode comprises a mains supply mode and a photovoltaic air conditioning unit power supply mode.
Further, the target component within the non-photovoltaic air conditioning component includes a throttling component.
In a second aspect, an embodiment of the present application provides a multi-split air conditioning system, including: the control module, the first switch and the second switch;
the control module is respectively connected with the first switch, the second switch and a preset non-photovoltaic air conditioning unit; the first switch is also connected with a preset commercial power supply module, and the second switch is also connected with a preset photovoltaic air conditioning unit;
the control module is used for detecting the electricity demand;
the control module is further used for switching off the first switch when the electricity consumption requirement is power outage and energy saving so as to stop the preset mains supply module from supplying power to the preset non-photovoltaic air conditioning unit; and the second switch is conducted so as to provide weak current for the preset non-photovoltaic air conditioning unit through the preset photovoltaic air conditioning unit, so that a target component in the preset non-photovoltaic air conditioning unit is in a controllable state.
Further, the system also comprises a communication module connected with the control module;
the communication module is used for acquiring a control instruction so that the control module can determine the electricity consumption requirement;
the communication module is further configured to send a power supply mode switching state of the preset non-photovoltaic air conditioning unit to a preset overall management module, so that the preset overall management module controls a state of a target component in the non-photovoltaic air conditioning unit;
the real-time power supply mode comprises a mains supply mode and a photovoltaic air conditioning unit power supply mode
Further, the control module is further configured to turn off the high-power load of the preset non-photovoltaic air conditioning unit before the first switch is turned off.
In a third aspect, an embodiment of the present application further provides a multi-split air conditioning system, including: at least one photovoltaic air conditioning unit and at least one non-photovoltaic air conditioning unit;
each non-photovoltaic air conditioning unit is connected with the photovoltaic air conditioning unit and the commercial power supply module through the multi-split air conditioning system control device.
In a fourth aspect, embodiments of the present application further provide a storage medium having a computer program stored thereon, which when executed by a processor, performs the multi-split air conditioning system control method as described above.
The control method of the multi-split air conditioning system is applied to the multi-split air conditioning system comprising a photovoltaic air conditioning unit and a non-photovoltaic air conditioning unit, and comprises the following steps: firstly, detecting electricity demand; stopping the commercial power to supply power for the non-photovoltaic air conditioning unit when the power failure and energy saving are determined to be needed; and providing weak current for the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit so as to enable a target component in the non-photovoltaic air conditioning unit to be in a controllable state. Therefore, when electricity is required to be limited, the mains supply can be actively disconnected and stopped, and weak electricity is supplied to the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit, so that components in the non-photovoltaic air conditioning unit are still in a controllable state after the mains supply is disconnected, and the safety and stability of the system are ensured.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a control method of a multi-split air conditioning system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a control device of a multi-split air conditioning system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a control device of a multi-split air conditioning system according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a multi-split air conditioning system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
Method embodiment:
fig. 1 is a schematic flow chart of a control method of a multi-split air conditioning system according to an embodiment of the present application, where, as shown in fig. 1, the method at least may include:
s101, detecting electricity demand.
Specifically, in some cases, the utility power limitation is performed based on a local policy, or the user determines the energy saving requirement, and at this time, the power consumption of the air conditioning system needs to be controlled, for example, power outage and energy saving are performed.
In some embodiments, the power demand may be determined by receiving a power-down power-saving instruction triggered automatically by a user input or a program, e.g., after receiving the power-down power-saving instruction, determining that the power demand is for power-down power saving; and after the power-off power-saving instruction is not received or after the power-off power-saving instruction is received and the recovery instruction for recovering the supply of the commercial power is received, determining that the power is normally supplied, namely supplying the power through the commercial power.
S102, stopping the commercial power to supply power for the non-photovoltaic air conditioning unit when power failure and energy saving are needed.
In a multi-split air conditioning system comprising a photovoltaic air conditioning unit (comprising a photovoltaic external machine and a photovoltaic internal machine) and a non-photovoltaic air conditioning unit (comprising a non-photovoltaic external machine, namely a common internal machine, and a non-photovoltaic internal machine, namely a common internal machine), namely a system formed by mixing and combining the photovoltaic air conditioning unit and the non-photovoltaic air conditioning unit, the photovoltaic air conditioning unit and the non-photovoltaic air conditioning unit are in the same refrigerating system, but the photovoltaic air conditioning unit is powered by an external photovoltaic panel, so that the running state and the power supply mode of the photovoltaic air conditioning unit are not generally changed when energy is saved; in the system, the supply of the commercial power to the non-photovoltaic air conditioning unit is stopped in response to the measures of power limitation and energy saving of the commercial power, which are generally to cut off the supply of the commercial power to the non-photovoltaic air conditioning unit.
S103, weak current is provided for the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit, so that target components in the non-photovoltaic air conditioning unit are in a controllable state.
Because the multi-split air conditioner is used as a distributed refrigerant control system when the photovoltaic air conditioner and the non-photovoltaic air conditioner are connected into the same refrigerating system, if all the air conditioner units such as the throttling devices of the inner machine and the outer machine cannot be in a controllable state at the same time, abnormal operation of the refrigerating system can be caused, and the safety and the stability of the system can be influenced.
In the application, the photovoltaic air conditioner unit utilizes the accessed photovoltaic panel to reversibly generate photovoltaic direct current bus voltage. Two types of buses can be formed inside the photovoltaic air conditioning unit, namely a high-voltage bus and a low-voltage bus, the high-voltage bus can drive a compressor, an external fan and other high-power loads of the photovoltaic air conditioning unit to operate, and the low-voltage bus can be used for operating small-power loads such as a control board and an electromagnetic valve of the photovoltaic air conditioning unit.
When the non-photovoltaic air conditioning unit is required to be powered off and save energy, the commercial power supply of the non-photovoltaic air conditioning unit is disconnected, and then weak current is provided for the non-photovoltaic air conditioning unit through a low-voltage bus of the photovoltaic air conditioning unit, so that target components in the non-photovoltaic air conditioning unit, such as a control board and a throttling component, such as an electronic expansion valve, are in a controllable state, and the throttling component and the like are in a powered-on and controllable state after the non-photovoltaic air conditioning unit stops the commercial power supply, and corresponding operations are performed, so that refrigerant distribution and throttling control of a control system are kept reasonable.
The control method of the multi-split air conditioning system is applied to the multi-split air conditioning system comprising a photovoltaic air conditioning unit and a non-photovoltaic air conditioning unit, and comprises the following steps: firstly, detecting electricity demand; stopping the commercial power to supply power for the non-photovoltaic air conditioning unit when the power failure and energy saving are determined to be needed; and providing weak current for the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit so as to enable a target component in the non-photovoltaic air conditioning unit to be in a controllable state. Therefore, when electricity is required to be limited, the mains supply can be actively disconnected and stopped, and weak electricity is supplied to the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit, so that components in the non-photovoltaic air conditioning unit are still in a controllable state after the mains supply is disconnected, and the safety and stability of the system are ensured.
In some embodiments, the control method of the multi-split air conditioning system further includes receiving a recovery instruction, and when the recovery instruction is received, determining that power-off energy saving is not needed for the non-photovoltaic air conditioning unit, performing corresponding power supply mode switching.
Specifically, after a recovery instruction is received or after an energy-saving instruction is received, the power-saving and energy-saving is determined to be unnecessary, and at this time, if the current power supply mode of the non-photovoltaic air conditioning unit is to supply power through the photovoltaic air conditioning unit, the power supply mode of the non-photovoltaic air conditioning unit needs to be switched to the mains supply. At this time, the commercial power supply can be firstly conducted for the non-photovoltaic air conditioning unit, and then the power supply of the non-photovoltaic air conditioning unit by the photovoltaic air conditioning unit is stopped.
In some embodiments, the above-mentioned switching of the power supply modes may be accomplished by a related control signal, for example, the connection between the non-photovoltaic air conditioning unit and the utility power supply module is achieved by a relay or a module integrating a switching function. When the power supply mode is required to be switched, a control signal is sent, and a relay or a module integrating a switch function is disconnected or connected, so that the switching of the power supply mode of the non-photovoltaic air conditioning unit between the mains supply and the photovoltaic air conditioning unit is realized.
It should be noted that, in the above embodiment, because the power supply of the weak current provided by the photovoltaic air conditioner set for the non-photovoltaic air conditioner set is limited and is insufficient to meet the operation of the large-load components such as the fan of the non-photovoltaic air conditioner set, the fan compressor of the non-photovoltaic air conditioner set can be actively turned off before the mains supply is switched to the photovoltaic air conditioner set for supplying power, so that the operation safety of the non-photovoltaic air conditioner set is ensured.
In some embodiments, an overall management module of a coordinated whole system can be set for the multi-connected air conditioning system to uniformly manage throttling components of all units, wherein the overall management module can be a single controller or a control board of an air conditioning unit, for example, a main control external machine (which can be a photovoltaic external machine of a photovoltaic air conditioning unit or a non-photovoltaic external machine of a non-photovoltaic air conditioning unit) is set to perform overall management, and refrigerant distribution and throttling control are performed on the basis that components in the non-photovoltaic air conditioning unit can be in a controlled state under the condition that commercial power is disconnected, so that the safety and stability of the system are ensured.
On the basis of the embodiment, the power supply mode of the non-photovoltaic air conditioning unit and/or the power supply mode switching state can be sent to a preset overall management module, for example, after the non-photovoltaic air conditioning unit finishes switching from the mains supply to the weak current power supply of the photovoltaic air conditioning unit, and after the non-photovoltaic air conditioning unit switches from the weak current power supply of the photovoltaic air conditioning unit to the mains supply, the information about whether the switching is successful or not is sent to the overall management module, and the overall management module is used for carrying out subsequent overall management.
Device example:
based on the same inventive concept, the application also provides a control device of the multi-split air conditioning system, which is applied to the multi-split air conditioning system comprising a photovoltaic air conditioning unit and a non-photovoltaic air conditioning unit, wherein the photovoltaic air conditioning unit acquires electric energy through connecting a photovoltaic panel, and the non-photovoltaic air conditioning unit acquires electric energy through connecting a mains supply module, as shown in fig. 2, the device comprises: a control module 1, a first switch 2 and a second switch 3;
the control module 1 is respectively connected with the first switch 2, the second switch 3 and the non-photovoltaic air conditioning unit; the first switch 2 is also connected with a preset commercial power supply module, and the second switch 2 is also connected with a preset photovoltaic air conditioning unit. The control module 1 is used for detecting the electricity demand.
Specifically, the control module 1 may be separate hardware, or may be existing control hardware in a multi-split air conditioning system, such as a control board in a non-photovoltaic air conditioning unit. The first switch 2 and the second switch 3 may be separate relays or may be implemented by a module integrating a switching function. The control module 1 determines the electricity demand according to the instruction sent by the multi-split air conditioning system. For example, after receiving a power-off power-saving instruction, determining that power-off power saving is required; after receiving the recovery instruction, it is determined that power-off and energy saving are not needed.
The first switch 2 is respectively connected with a mains supply (such as a power supply module or a mains supply module), a control module and a non-photovoltaic air conditioning unit (comprising an external unit and an internal unit), and is used for conducting connection between the non-photovoltaic air conditioning unit and the mains supply under the control of the control module 1, namely controlling whether the mains supply supplies power for the non-photovoltaic air conditioning unit; the second switch 3 is respectively connected with a photovoltaic air conditioning unit (an external unit with electric energy), a control module and a non-photovoltaic air conditioning unit (comprising the external unit and an internal unit), and is used for conducting connection between the non-photovoltaic air conditioning unit and the photovoltaic air conditioning unit under the control of the control module 1, namely controlling whether the photovoltaic air conditioning unit supplies power for the non-photovoltaic air conditioning unit.
When power is required to be cut off and energy is saved, the control module 1 turns off the first switch 2 to stop the mains supply to supply power for a preset non-photovoltaic air conditioning unit; and the second switch 3 is conducted so as to provide weak current for the preset non-photovoltaic air conditioning unit through the preset photovoltaic air conditioning unit, so that target components in the preset non-photovoltaic air conditioning unit are in a controllable state, the components in the non-photovoltaic air conditioning unit such as a throttle solenoid valve and the like are ensured to be in a controllable state, refrigerant distribution and throttle control are performed subsequently based on actual requirements, and the safety and stability of the multi-split air conditioning system are ensured.
When power is not required to be cut off and energy is saved, the control module 1 controls the first switch 2 to be turned on, and the second switch 3 to be turned off, so that the power supply mode of the non-photovoltaic air conditioning unit is switched from the photovoltaic air conditioning unit power supply to the mains supply, and the operation of a large load such as a fan and the like in the non-photovoltaic air conditioning unit is controlled according to the requirement in the follow-up process.
Further, in some embodiments, the control device of the multi-split air conditioning system may further include a communication module 4, where the communication module 4 receives an instruction sent by the multi-split air conditioning system, so that the main control module 1 determines the power consumption requirement; and sending the power supply mode and the switching information of the non-photovoltaic air conditioning unit to an overall management module such as a main control external machine for overall control of the main control external machine based on the power supply state of the non-photovoltaic air conditioning unit, and reasonably distributing the overall refrigerant and reasonably controlling throttling.
In other embodiments, the control device of the multi-split air conditioning system can also realize the functions of the communication modules by connecting with the preset communication modules, thereby reducing the volume of the device and increasing the flexibility of the device.
Fig. 3 is a schematic structural diagram of a control device of a multi-split air conditioning system according to another embodiment of the present application, as shown in fig. 3, a non-photovoltaic air conditioning control board may be used as the control module 1, a power module may be used as the first switch 2, a relay K1 may be used as the second switch 3, and communication between the inner machine and the outer machine may be realized through a separate communication module, such as a communication line, and a related current-voltage conversion device or module may be provided.
Specifically, when the non-photovoltaic air conditioner control board receives the power-off power-saving instruction through the communication module, the power supply of the commercial power of the common air conditioner needs to be stopped, so that the common air conditioner immediately enters an energy-saving mode, and the method specifically comprises the following steps: the non-photovoltaic air conditioner control panel firstly stops the operation of high-power loads such as an internal FAN FAN (M in the figure), and then sends a ctrl3 signal to K1 to conduct a circuit between the non-photovoltaic air conditioner unit and the photovoltaic air conditioner unit, so that weak current is provided for the non-photovoltaic air conditioner unit through the photovoltaic air conditioner unit; and immediately sending ctrl2 signal to the mains supply circuit such as the power module in fig. 3, turning off the mains supply. After waiting time t1, the main control external machine is informed that the non-photovoltaic air conditioning unit has been switched to supply power, so that the main control external machine can adjust throttling devices such as an electronic expansion valve and the like according to the requirements of a refrigerant control system, and the normal operation of the system is ensured.
When the non-photovoltaic air conditioner control board receives a recovery instruction through the communication module, the normal supply of the commercial power of the non-photovoltaic air conditioner unit needs to be recovered, and at the moment, the non-photovoltaic air conditioner control board sends a ctrl2 signal to the commercial power supply circuit to recover the power supply of the power module according to the same principle; and sending a ctrl3 signal to the K1 to cut off the photovoltaic weak current power supply switch K1, and after waiting for the time t2, notifying the main control external machine that the non-photovoltaic external machine has been switched to supply power, releasing the energy-saving mode by the non-photovoltaic air conditioner unit, and recovering normal operation, wherein the internal machine load of the non-photovoltaic air conditioner can normally operate according to actual requirements.
Further, because a multi-split air conditioning system generally includes a plurality of photovoltaic air conditioning units and non-photovoltaic air conditioning units, that is, includes a plurality of light-emitting external units, a plurality of photovoltaic internal units, a plurality of common external units and a plurality of common internal units. In order to improve the control precision, the control device of the multi-split air conditioning system can be arranged for each common inner machine and each common outer machine, so that the power supply modes of each common outer machine and each common inner machine are independently controlled, and meanwhile, each common inner machine and each common outer machine are connected with the overall management module through communication lines, so that the precise control is realized, and the safety and the stability of the multi-split air conditioning system are further improved. Specifically, as shown in fig. 4 (the only photovoltaic external machine in fig. 4 is the main control external machine, namely the overall management module).
Furthermore, the control device of the multi-split air conditioning system can be arranged in each common inner machine and each common outer machine, and the connection can be realized only by the relevant interfaces and the relevant lines, so that the practicability of the multi-split air conditioning system is improved.
Of course, in some embodiments, all the common internal units and the common external units can be connected with a multi-split air conditioning system control device, so that connection with the commercial power and the photovoltaic air conditioning unit is realized, and the system cost is greatly reduced.
System embodiment:
based on the same inventive concept, the application also provides a multi-split air conditioning system, which can comprise a photovoltaic air conditioning unit and a non-photovoltaic air conditioning unit, wherein the photovoltaic air conditioning unit comprises a plurality of photovoltaic external machines and a plurality of photovoltaic internal machines, and the non-photovoltaic air conditioning unit comprises a plurality of common external machines and a plurality of common internal machines.
The control device of the multi-split air conditioning system is characterized in that each common internal machine and each common external machine are connected with a photovoltaic air conditioning unit (comprising a photovoltaic external machine and/or a photovoltaic internal machine) and commercial power through the control device of the multi-split air conditioning system, or each common internal machine and each common external machine are connected with the photovoltaic air conditioning unit (comprising the photovoltaic external machine and/or the photovoltaic internal machine) and the commercial power through the control device of the multi-split air conditioning system, when power is required to be cut off and energy is saved, the commercial power is stopped to supply power for the common internal machine and the common external machine, and weak power is provided through the photovoltaic air conditioning unit (comprising the photovoltaic external machine and/or the photovoltaic internal machine), so that components in the common internal machine and the common external machine are still in a controllable state after the commercial power supply is disconnected, the follow-up refrigerant distribution and throttling control are realized, and the safety and stability of the multi-split air conditioning system are ensured.
The multi-split air conditioning system provided by the application can fully utilize the power supply of the photovoltaic air conditioner, and can perform energy-saving management by actively receiving the power-off energy-saving instruction, so that the mixed operation of the common air conditioner and the photovoltaic air conditioner is realized, the control and management of components in the common inner machine and the common outer machine such as a throttling component are ensured under the condition of power failure of the commercial power, the safety and the stability of the multi-split air conditioning system are greatly improved, and the market adaptability of the photovoltaic air conditioner is further improved.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
System embodiment:
based on the same inventive concept, the application also provides a storage medium, wherein a computer program is stored on the storage medium, and the computer program executes the multi-split air conditioning system control method when being run by a processor. It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
It should be noted that in the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "plurality" means at least two.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. The control method of the multi-split air conditioning system is characterized by being applied to the multi-split air conditioning system comprising a photovoltaic air conditioning unit and a non-photovoltaic air conditioning unit, and comprises the following steps:
determining a power demand, the power demand including power outage and energy conservation;
when the electricity demand is power outage and energy conservation, stopping the commercial power to supply power for the non-photovoltaic air conditioning unit;
and weak current is provided for the non-photovoltaic air conditioning unit through the photovoltaic air conditioning unit so that a target component in the non-photovoltaic air conditioning unit is in a controllable state.
2. The method for controlling a multi-split air conditioning system according to claim 1, wherein the determining the electricity demand includes:
receiving an electricity limiting and energy saving instruction or a recovery instruction;
when the power-off energy-saving instruction is received, determining that the power-on requirement is power-off energy saving;
and when the recovery instruction is received, determining that the power consumption requirement is normal power supply.
3. The method for controlling a multi-split air conditioning system according to claim 2, further comprising:
when the electricity demand is normal power supply, stopping providing weak current for the non-photovoltaic unit through the photovoltaic air conditioner unit;
and supplying power to the non-photovoltaic unit through a preset mains supply module.
4. The method for controlling a multi-split air conditioning system according to claim 1, further comprising:
the power supply mode of the non-photovoltaic air conditioning unit and/or the power supply mode switching state of the non-photovoltaic air conditioning unit are/is sent to a preset overall management module, and the preset overall management module is used for controlling the state of a target component in the non-photovoltaic air conditioning unit;
the power supply modes comprise a mains supply mode and a photovoltaic air conditioning unit power supply mode.
5. The method of claim 1, wherein the target component in the non-photovoltaic air conditioning component comprises a throttling component.
6. A multi-split air conditioning system control device, characterized by comprising: the control module, the first switch and the second switch;
the control module is respectively connected with the first switch, the second switch and a preset non-photovoltaic air conditioning unit; the first switch is also connected with a preset commercial power supply module, and the second switch is also connected with a preset photovoltaic air conditioning unit;
the control module is used for detecting the electricity demand;
the control module is further used for switching off the first switch when the electricity consumption requirement is power outage and energy saving so as to stop the preset mains supply module from supplying power to the preset non-photovoltaic air conditioning unit; and the second switch is conducted so as to provide weak current for the preset non-photovoltaic air conditioning unit through the preset photovoltaic air conditioning unit, so that a target component in the preset non-photovoltaic air conditioning unit is in a controllable state.
7. The multi-split air-conditioning system control device of claim 6, further comprising a communication module coupled to the control module;
the communication module is used for acquiring a control instruction so that the control module can determine the electricity consumption requirement;
the communication module is further configured to send a power supply mode switching state of the preset non-photovoltaic air conditioning unit to a preset overall management module, so that the preset overall management module controls a state of a target component in the non-photovoltaic air conditioning unit;
the power supply modes comprise a mains supply mode and a photovoltaic air conditioning unit power supply mode.
8. The multi-split air conditioning system control unit of claim 6, wherein the control module is further configured to turn off a high power load of the preset non-photovoltaic air conditioning unit before the first switch is turned off.
9. A multi-split air conditioning system, comprising: at least one photovoltaic air conditioning unit and at least one non-photovoltaic air conditioning unit;
each non-photovoltaic air conditioning unit is connected with the photovoltaic air conditioning unit and the commercial power supply module through the multi-split air conditioning system control device according to any one of claims 6-8.
10. A storage medium having stored thereon a computer program which, when executed by a processor, performs the multi-split air conditioning system control method of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310311034.1A CN116336613A (en) | 2023-03-27 | 2023-03-27 | Control method, device, system and storage medium for multi-split air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310311034.1A CN116336613A (en) | 2023-03-27 | 2023-03-27 | Control method, device, system and storage medium for multi-split air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116336613A true CN116336613A (en) | 2023-06-27 |
Family
ID=86881909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310311034.1A Pending CN116336613A (en) | 2023-03-27 | 2023-03-27 | Control method, device, system and storage medium for multi-split air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116336613A (en) |
-
2023
- 2023-03-27 CN CN202310311034.1A patent/CN116336613A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104132420B (en) | Low-power-consumption standby circuit device, air conditioner and control method of air conditioner | |
| US9703357B2 (en) | Power management method and apparatus, and power supply system | |
| US20230332799A1 (en) | Control circuit for air conditioner outdoor unit, electric control component and air conditioner | |
| CN2913925Y (en) | Double-system air-conditioning apparatus | |
| CN210273593U (en) | High-power supply circuit with low standby power consumption and LED display control system | |
| CN114646132A (en) | Power supply system and air conditioner | |
| CN111076370A (en) | Standby control device, air conditioner and standby control method of air conditioner | |
| CN109323374B (en) | Air conditioner controller and control method | |
| CN212204951U (en) | Power supply system and air conditioner | |
| CN203215919U (en) | Low-power consumption standby circuit device and air conditioner | |
| CN105571062A (en) | Automatic cooling water control system and method for air conditioner in machine room | |
| CN102495558A (en) | System and method for remotely controlling turn-on or turn-off of electric equipment by using radio frequency communication | |
| CN103776132A (en) | Energy-saving control system of central air conditioner | |
| CN116336613A (en) | Control method, device, system and storage medium for multi-split air conditioning system | |
| CN111397180A (en) | Low-power-consumption multi-split air conditioning unit control method and device and air conditioning unit | |
| EP4397918A1 (en) | Multi-split air conditioner control circuit, electrically controlled device, and air conditioner | |
| CN103363616B (en) | Air conditioner and control method, control terminal and control system thereof | |
| CN216146151U (en) | Power supply redundancy switching circuit | |
| CN214536732U (en) | Control device, air conditioner controller and air conditioner | |
| CN223065671U (en) | A low standby power consumption control circuit and air conditioning equipment | |
| CN203771628U (en) | Energy-saving control system for central air-conditioner | |
| CN223064018U (en) | A dual control hot backup system for air conditioning equipment | |
| CN214850487U (en) | Low-power-consumption power supply system and air conditioner | |
| WO2024113971A1 (en) | Air conditioning system, and power supply control apparatus and power supply control method therefor | |
| CN102287889A (en) | Air-conditioner standby regulating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |