CN116358122A - Fan control method, device, system and storage medium - Google Patents
Fan control method, device, system and storage medium Download PDFInfo
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- CN116358122A CN116358122A CN202310396836.7A CN202310396836A CN116358122A CN 116358122 A CN116358122 A CN 116358122A CN 202310396836 A CN202310396836 A CN 202310396836A CN 116358122 A CN116358122 A CN 116358122A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000003860 storage Methods 0.000 title claims abstract description 14
- 238000010257 thawing Methods 0.000 claims abstract description 15
- 238000010248 power generation Methods 0.000 claims description 43
- 238000004590 computer program Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 16
- 230000005611 electricity Effects 0.000 description 8
- 238000004378 air conditioning Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a fan control method, device, system and storage medium, and relates to the field of air conditioners. The method comprises the following steps: after the modularized multi-split system is started, acquiring the temperature of a photovoltaic module of at least one photovoltaic multi-split system under the condition that at least one photovoltaic multi-split system in the modularized multi-split system is not started or the modularized multi-split system is in an oil return state or a defrosting state; and controlling the working state of the outdoor fan of at least one photovoltaic multi-split air conditioner based on the temperature of the photovoltaic module, wherein the outdoor fan dissipates heat for the photovoltaic module when in a starting state, and high temperature damage components and parts generated by operation of the photovoltaic module can be avoided, so that the reliability of the modularized multi-split air conditioner system is improved.
Description
Technical Field
The present disclosure relates to the field of air conditioners, and in particular, to a method, an apparatus, a system, and a storage medium for controlling a fan.
Background
The modularized multi-connected machine system is composed of a plurality of multi-connected machines. For example, one or more photovoltaic multi-connected units and one or more non-photovoltaic multi-connected units are mixed to form a modularized multi-connected unit system, or a plurality of photovoltaic multi-connected units form a modularized multi-connected unit system. Because the photovoltaic multi-split air conditioner comprises photovoltaic modules such as a photovoltaic driving module and a photovoltaic power generation plate, high temperature is easy to generate to damage components and parts when the photovoltaic modules run under some conditions, and the multi-split air conditioner needs to be controlled in order to ensure reliable execution of the components and parts.
Disclosure of Invention
The technical problem to be solved by the present disclosure is to provide a fan control method, device, system and storage medium, which can avoid high temperature damage to components generated by operation of a photovoltaic module.
According to an aspect of the present disclosure, a fan control method is provided, including: after the modularized multi-split system is started, acquiring the temperature of a photovoltaic module of at least one photovoltaic multi-split system under the condition that at least one photovoltaic multi-split system in the modularized multi-split system is not started or the modularized multi-split system is in an oil return state or a defrosting state; and controlling the working state of the outdoor fan of at least one photovoltaic multi-split air conditioner based on the temperature of the photovoltaic module, wherein the outdoor fan dissipates heat for the photovoltaic module when in a starting state.
In some embodiments, the generated power of the photovoltaic module is obtained; and controlling the working state of the outdoor fan based on the temperature and the power generation of the photovoltaic module under the condition that the outdoor temperature of at least one photovoltaic multi-connected unit is greater than an outdoor temperature threshold.
In some embodiments, controlling the operating state of the outdoor fan includes: controlling the outdoor fan to be in an on state under the condition that the temperature of the photovoltaic module is larger than a first temperature threshold value; and controlling the outdoor fan to be in a stop state under the condition that the temperature of the photovoltaic module is smaller than a second temperature threshold, wherein the second temperature threshold is smaller than the first temperature threshold.
In some embodiments, controlling the operating state of the outdoor fan further comprises: and when the temperature of the photovoltaic module is smaller than or equal to the first temperature threshold value and larger than or equal to the second temperature threshold value, the start-stop state of the outdoor fan is maintained.
In some embodiments, controlling the operating state of the outdoor fan further comprises: and under the condition that the outdoor fan is in an on state, controlling the operating frequency of the outdoor fan according to the temperature of the photovoltaic module, wherein the higher the temperature of the photovoltaic module is, the greater the operating frequency of the outdoor fan is.
In some embodiments, controlling the operating state of the outdoor fan includes: controlling the outdoor fan to be in an on state under the condition that the temperature of the photovoltaic module is larger than a first temperature threshold value; and if the temperature of the photovoltaic module is smaller than or equal to the first temperature threshold and is larger than or equal to the second temperature threshold, the open state of the outdoor fan is maintained if the outdoor fan is in the open state; and if the outdoor fan is in an unopened state and the power generation power of the photovoltaic module is greater than the first trigger power, controlling the outdoor fan to be in an opened state, and if the power generation power of the photovoltaic module is less than or equal to the first trigger power, maintaining the stopping state of the outdoor fan.
In some embodiments, controlling the operating state of the outdoor fan further comprises: if the temperature of the photovoltaic module is smaller than the second temperature threshold, controlling the outdoor fan to be in an on state if the generated power of the photovoltaic module is larger than the first trigger power; if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power and larger than or equal to the second trigger power, the start-stop state of the outdoor fan is maintained; and if the power generation power of the photovoltaic module is smaller than the second trigger power, controlling the outdoor fan to be in a stop state.
In some embodiments, the first trigger power and the second trigger power are determined based on an outdoor temperature.
In some embodiments, the operating power of the outdoor fan is controlled based on the temperature of the photovoltaic module when at least one of the photovoltaic multi-connected units is in the start-up state.
In some embodiments, controlling the operating power of the outdoor fan includes: increasing the current operating frequency of the outdoor fan under the condition that the temperature of the photovoltaic module is greater than a third temperature threshold value; when the temperature of the photovoltaic module is smaller than or equal to the third temperature threshold value and larger than or equal to the fourth temperature threshold value, the operating frequency of the outdoor fan is kept; and controlling the operating frequency of the outdoor fan according to the pressure of the compressor exhaust port of at least one photovoltaic multi-connected unit under the condition that the temperature of the photovoltaic module is smaller than the fourth temperature threshold.
In some embodiments, the third temperature threshold is equal to the first temperature threshold; and/or the fourth temperature threshold is equal to the second temperature threshold.
According to another aspect of the present disclosure, there is also provided a fan control method, including: after the modularized multi-split system is started, acquiring the power of at least one photovoltaic module of the photovoltaic multi-split system under the condition that at least one photovoltaic multi-split in the modularized multi-split system is not started or the modularized multi-split system is in an oil return state or a defrosting state; and controlling the working state of the outdoor fan based on the power generation of the photovoltaic module under the condition that the outdoor temperature of at least one photovoltaic multi-connected unit is greater than an outdoor temperature threshold.
In some embodiments, controlling the operating state of the outdoor fan includes: if the power generation power of the photovoltaic module is larger than the first trigger power, the outdoor fan is controlled to be in an on state; if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power and larger than or equal to the second trigger power, the start-stop state of the outdoor fan is maintained; and if the power generation power of the photovoltaic module is smaller than the second trigger power, controlling the outdoor fan to be in a stop state.
According to another aspect of the present disclosure, there is also provided a fan control apparatus including: the temperature acquisition module is configured to acquire the temperature of the photovoltaic module of at least one photovoltaic multi-split system when the at least one photovoltaic multi-split system in the modular multi-split system is not started or the modular multi-split system is in an oil return state or a defrosting state after the modular multi-split system is started; and the fan control module is configured to control the working state of the outdoor fan of at least one photovoltaic multi-split air conditioner based on the temperature of the photovoltaic module, wherein the outdoor fan dissipates heat for the photovoltaic module when being in a starting state.
In some embodiments, the power acquisition module is configured to acquire power generated by the photovoltaic module, and the fan control module is further configured to control the working state of the outdoor fan based on the temperature and the power generated by the photovoltaic module when the outdoor temperature at which the at least one photovoltaic multi-connected unit is located is greater than an outdoor temperature threshold.
According to another aspect of the present disclosure, there is also provided a fan control apparatus including: the power acquisition module is configured to acquire the power generation of the photovoltaic module of at least one photovoltaic multi-split system when at least one photovoltaic multi-split system in the modular multi-split system is not started or the modular multi-split system is in an oil return state or a defrosting state after the modular multi-split system is started; and the fan control module is configured to control the working state of the outdoor fan based on the power generation of the photovoltaic module under the condition that the outdoor temperature of at least one photovoltaic multi-connected unit is greater than an outdoor temperature threshold.
According to another aspect of the present disclosure, there is also provided a fan control apparatus including: a memory; and a processor coupled to the memory, the processor configured to perform a fan control method as described above based on instructions stored in the memory.
According to another aspect of the present disclosure, there is also provided a modular multi-split system, including: the fan control device.
According to another aspect of the present disclosure, there is also provided a non-transitory computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the above-described fan control method.
In the embodiment of the disclosure, the fan of the photovoltaic multi-split air conditioner is not started, but when the photovoltaic module generates electricity, whether the fan is started or not is timely determined according to the temperature of the photovoltaic module, the fan is utilized for radiating the photovoltaic module, and high temperature damage components generated by operation of the photovoltaic module can be avoided, so that the reliability of the modularized multi-split air conditioner system is improved.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a flow diagram of some embodiments of a fan control method of the present disclosure;
FIG. 2 is a flow diagram of further embodiments of a fan control method of the present disclosure;
FIG. 3 is a flow diagram of further embodiments of a fan control method of the present disclosure;
FIG. 4 is a flow diagram of further embodiments of a fan control method of the present disclosure;
FIG. 5 is a schematic structural view of some embodiments of a fan control apparatus of the present disclosure;
FIG. 6 is a schematic structural view of other embodiments of a fan control apparatus of the present disclosure;
FIG. 7 is a schematic diagram of other embodiments of a fan control apparatus of the present disclosure;
FIG. 8 is a schematic structural view of other embodiments of a fan control apparatus of the present disclosure; and
fig. 9 is a schematic structural diagram of some embodiments of a modular multi-split system of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.
In a modular multi-split system comprising a photovoltaic multi-split, a photovoltaic module of the photovoltaic multi-split can output electric energy, and if the system comprises a non-photovoltaic multi-split, the non-photovoltaic multi-split can adopt the electric quantity output by the photovoltaic multi-split or use conventional mains supply. When the system operates normally, a certain external machine module serves as a main external machine, and the starting sequence and the load operation of each module are coordinated. When the system is operated, one or more multi-split air-conditioning units are started according to the refrigerating capacity or heating capacity required by consumers, when not all the multi-split air-conditioning units are started, the control of fans is required to be coordinated when the unopened light Fu Duo is in online power generation, and the started fans of the photovoltaic multi-split air-conditioning units are also required to be coordinated.
FIG. 1 is a flow diagram of some embodiments of a fan control method of the present disclosure, performed by a fan control apparatus, for example, located in a main external machine of a modular multi-split system.
After the modular multi-split system is started in step 110, the temperature of the photovoltaic module of the at least one photovoltaic multi-split system is obtained when the at least one photovoltaic multi-split system in the modular multi-split system is not started or the modular multi-split system is in an oil return state or a defrosting state.
In some embodiments, whether to turn on one or more multi-split lines is determined based on the cooling capacity or heating capacity requirements. If the photovoltaic multi-split air conditioner is not started, or the modularized multi-split air conditioner system is in an oil return state or a defrosting state, the fan of the photovoltaic multi-split air conditioner is in an unopened state, but the photovoltaic module needs to generate power, and when the photovoltaic module generates power, the heating of all main components is easily caused, so that all the main components need to dissipate heat in the power generation process, and the damage to the components is avoided.
In the step, the temperature of the photovoltaic module during power generation and grid connection is monitored in real time.
In step 120, based on the temperature of the photovoltaic module, the working state of the outdoor fan of at least one photovoltaic multi-split air conditioner is controlled, wherein the outdoor fan dissipates heat for the photovoltaic module when in a starting state.
In some embodiments, controlling the outdoor fan to be in an on state when the temperature of the photovoltaic module is greater than a first temperature threshold; and under the condition that the temperature of the photovoltaic module is smaller than a second temperature threshold, controlling the outdoor fan to be in a stop state, wherein the second temperature threshold is smaller than the first temperature threshold.
In some embodiments, the first temperature threshold is 60 ° to 70 °, the second temperature threshold is 55 ° to 65 °, but the second temperature threshold is less than the first temperature threshold.
For example, when the temperature of the photovoltaic module is too high, for example, the temperature of the photovoltaic module is 70 degrees, a fan corresponding to the photovoltaic multi-split air conditioner is started in time, and the fan dissipates heat for the photovoltaic module; if the temperature of the photovoltaic module is not high, for example, the temperature of the photovoltaic module is smaller than 65 degrees, cooling treatment is not needed, and therefore, the fan can be turned off, and the purpose of energy saving is achieved.
In some embodiments, the start-stop state of the outdoor fan is maintained when the temperature of the photovoltaic assembly is less than or equal to the first temperature threshold and greater than or equal to the second temperature threshold.
For example, when the temperature of the photovoltaic module is too high, the fan is started, and after the temperature of the photovoltaic module is reduced to a certain value, the starting state of the fan is maintained. If the photovoltaic module is not started, the fan is still kept in a closed state until the temperature of the photovoltaic module reaches the first temperature threshold after the temperature of the photovoltaic module is detected to reach the second temperature threshold to the first temperature threshold. The condition fluctuation of the fan can be prevented from being too large.
In the embodiment, the fan of the photovoltaic multi-split air conditioner is not started, but when the photovoltaic module generates electricity, whether the fan is started or not is timely determined according to the temperature of the photovoltaic module, the fan is used for radiating heat of the photovoltaic module, and high-temperature damage to components and parts caused by operation of the photovoltaic module can be avoided.
In some embodiments, the operating frequency of the outdoor fan is controlled according to the temperature of the photovoltaic module with the outdoor fan in an on state, wherein the higher the temperature of the photovoltaic module, the greater the operating frequency of the outdoor fan.
For example, when the temperature of the photovoltaic module reaches 70 °, the outdoor fan operates at a frequency of 40 HZ; if the photovoltaic module continues to heat up, for example, when the temperature rises to 80 degrees, the frequency of the outdoor fan is adjusted to 50Hz; if the photovoltaic module continues to heat up, for example, when the temperature rises to 90 degrees, the outdoor fan operates according to the maximum fan frequency; when the heat of the photovoltaic module cannot be dissipated through the fan, for example, the temperature of the photovoltaic module reaches 115 degrees, temperature protection is needed, namely, the photovoltaic module stops generating electricity, and components in the photovoltaic module are prevented from being burnt.
FIG. 2 is a flow chart of other embodiments of a fan control method of the present disclosure. The embodiment is executed when at least one photovoltaic multi-split in the modularized multi-split system is not started or the modularized multi-split system is in an oil return state or a defrosting state after the modularized multi-split system is started.
In step 210, the temperature and the generated power of the photovoltaic module of the photovoltaic multi-split air conditioner and the outdoor temperature of the photovoltaic multi-split air conditioner are obtained.
In step 220, when the outdoor temperature of the photovoltaic multi-split air conditioner is greater than the outdoor temperature threshold, the working state of the outdoor fan is controlled based on the temperature and the power of the photovoltaic module.
In some embodiments, the outdoor temperature threshold has a value of 38 ° to 55 °.
For example, when the outdoor temperature is greater than 38 degrees, the unit is in a high-temperature working condition, and grid-connected power at the grid side, namely the power generation power of the photovoltaic module, is monitored.
In some embodiments, the outdoor fan is controlled to be in an on state if the temperature of the photovoltaic module is greater than a first temperature threshold.
For example, if the temperature of the photovoltaic module is greater than 70 °, a fan corresponding to the photovoltaic multi-split air conditioner should be started in time, and heat dissipation is performed on the photovoltaic module through the fan.
In some embodiments, if the temperature of the photovoltaic assembly is less than or equal to the first temperature threshold and greater than or equal to the second temperature threshold, if the outdoor fan is already in an on state, then maintaining the on state of the outdoor fan; and if the outdoor fan is in an unopened state and the power generation power of the photovoltaic module is greater than the first trigger power, controlling the outdoor fan to be in an opened state, and if the power generation power of the photovoltaic module is less than or equal to the first trigger power, maintaining the stopping state of the outdoor fan.
For example, when the temperature of the photovoltaic module is too high, the fan is started, and after the temperature of the photovoltaic module is reduced to a certain value, the starting state of the fan is maintained. If the photovoltaic module is not started, whether the fan needs to be started or not is determined according to the generated power of the photovoltaic module when the temperature of the photovoltaic module is detected to reach the range from the second temperature threshold to the first temperature threshold.
The first trigger power is determined based on the outdoor temperature. For example, the first trigger power p1=a-B (T-ring-38) -C, where A, B and C are constants, e.g., a=20000, b=700, c=3000.
In some embodiments, if the temperature of the photovoltaic module is less than the second temperature threshold, if the generated power of the photovoltaic module is greater than the first trigger power, controlling the outdoor fan to be in an on state; if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power and larger than or equal to the second trigger power, the start-stop state of the outdoor fan is maintained; and if the power generation power of the photovoltaic module is smaller than the second trigger power, controlling the outdoor fan to be in a stop state.
The second trigger power is determined based on the outdoor temperature. For example, the first trigger power p2=a-B (T-ring-38) -D, where A, B and D are constants, e.g., a=20000, b=700, d=4000.
For example, if the power generated by the photovoltaic module is greater than P1, the outdoor fan is started; if the power generation of the photovoltaic module is smaller than P2, stopping the outdoor fan; if the power generation power of the photovoltaic module is between P2 and P1, the outdoor fan is in an on state, the on state is continuously maintained, and if the outdoor fan is in a stop state, the stop state is continuously maintained, so that the condition of the fan is prevented from excessively fluctuating.
In the above embodiment, the fan of the photovoltaic multi-split air conditioner is not started, but when the photovoltaic module generates electricity, if the photovoltaic multi-split air conditioner is under a high temperature working condition, whether the fan needs to be started or not is determined according to the temperature and the generated power of the photovoltaic module, and the fan dissipates heat for the photovoltaic module, so that damage to components can be avoided.
FIG. 3 is a flow chart of other embodiments of a fan control method of the present disclosure.
After the modular multi-split system is started in step 310, the temperature of the photovoltaic module of the at least one photovoltaic multi-split system is obtained under the condition that the at least one photovoltaic multi-split system is in a starting state.
In some embodiments, the photovoltaic multi-split air conditioner is started, and the corresponding outdoor fan is started, so that the outdoor fan is directly used for radiating the photovoltaic module, and the temperature of the photovoltaic module needs to be monitored in real time.
In step 320, the operating power of the outdoor fan is controlled based on the temperature of the photovoltaic module.
In some embodiments, increasing the current operating frequency of the outdoor fan if the temperature of the photovoltaic assembly is greater than a third temperature threshold; when the temperature of the photovoltaic module is smaller than or equal to the third temperature threshold value and larger than or equal to the fourth temperature threshold value, the operating frequency of the outdoor fan is kept; and controlling the operating frequency of the outdoor fan according to the pressure of the compressor exhaust port of at least one photovoltaic multi-connected unit under the condition that the temperature of the photovoltaic module is smaller than the fourth temperature threshold.
In some embodiments, the third temperature threshold is equal to the first temperature threshold and the fourth temperature threshold is equal to the second temperature threshold.
For example, if the temperature of the photovoltaic module is greater than 70 degrees, the fan frequency of the photovoltaic multi-split air conditioner is increased; if the temperature of the photovoltaic module is smaller than 65 degrees, recovering a fan control strategy of a conventional air conditioning unit; if the temperature of the photovoltaic module is 65-70 degrees, the current fan frequency is kept.
In the above embodiment, for the photovoltaic multi-split air conditioner in the starting state, according to the temperature of the photovoltaic module, the operating frequency of the outdoor fan is adjusted, so that on one hand, the photovoltaic module can be cooled efficiently, on the other hand, the energy conservation of the system can be improved, and the stable operation of the system is ensured.
FIG. 4 is a flow chart of further embodiments of a fan control method of the present disclosure.
After the modular multi-split system is started in step 410, the power generation of the photovoltaic module of the at least one photovoltaic multi-split system is obtained when the at least one photovoltaic multi-split system in the modular multi-split system is not started or the modular multi-split system is in an oil return state or a defrosting state.
In some embodiments, it is also desirable to obtain the outdoor temperature at which the at least one photovoltaic multi-split line is located.
In step 420, when the outdoor temperature of the at least one photovoltaic multi-connected unit is greater than the outdoor temperature threshold, the working state of the outdoor fan is controlled based on the generated power of the photovoltaic module.
In some embodiments, the outdoor temperature threshold is 38 °.
In some embodiments, if the generated power of the photovoltaic assembly is greater than the first trigger power, controlling the outdoor fan to be in an on state; if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power and larger than or equal to the second trigger power, the start-stop state of the outdoor fan is maintained; and if the power generation power of the photovoltaic module is smaller than the second trigger power, controlling the outdoor fan to be in a stop state.
In the above embodiment, the fan of the photovoltaic multi-split air conditioner is not started, but when the photovoltaic module generates electricity, if the photovoltaic multi-split air conditioner is under a high temperature working condition, whether the fan needs to be started or not is determined according to the generated power of the photovoltaic module, and the fan dissipates heat for the photovoltaic module, so that damage to components can be avoided.
FIG. 5 is a schematic structural diagram of some embodiments of a fan control apparatus of the present disclosure, including a temperature acquisition module 510 and a fan control module 520. The fan control device is located in a main external machine of the modularized multi-split system.
The temperature obtaining module 510 is configured to obtain the temperature of the photovoltaic module of the at least one photovoltaic multi-split system when the at least one photovoltaic multi-split system in the modular multi-split system is not started or the modular multi-split system is in an oil return state or a defrosting state after the modular multi-split system is started.
The fan control module 520 is configured to control an operating state of an outdoor fan of the at least one photovoltaic multi-split air conditioner based on a temperature of the photovoltaic module, wherein the outdoor fan dissipates heat for the photovoltaic module when in a starting state.
In some embodiments, the fan control module 520 controls the outdoor fan to be in an on state if the temperature of the photovoltaic module is greater than the first temperature threshold; and under the condition that the temperature of the photovoltaic module is smaller than a second temperature threshold, controlling the outdoor fan to be in a stop state, wherein the second temperature threshold is smaller than the first temperature threshold.
In some embodiments, the fan control module 520 maintains the on-off state of the outdoor fan if the temperature of the photovoltaic assembly is less than or equal to the first temperature threshold and greater than or equal to the second temperature threshold.
In the embodiment, the fan of the photovoltaic multi-split air conditioner is not started, but when the photovoltaic module generates electricity, whether the fan is started or not is timely determined according to the temperature of the photovoltaic module, the fan is used for radiating heat of the photovoltaic module, and high-temperature damage to components and parts caused by operation of the photovoltaic module can be avoided.
In some embodiments, the blower control module 520 is further configured to control the operating frequency of the outdoor blower in accordance with the temperature of the photovoltaic assembly, where the higher the temperature of the photovoltaic assembly, the greater the operating frequency of the outdoor blower, with the outdoor blower in an on state.
In other embodiments of the present disclosure, as shown in fig. 6, the fan control apparatus further includes a power obtaining module 610 configured to obtain the power generated by the photovoltaic module, where the fan control module 520 is further configured to control the working state of the outdoor fan based on the temperature and the power generated by the photovoltaic module when the outdoor temperature at which the at least one photovoltaic multi-connected unit is located is greater than the outdoor temperature threshold.
In some embodiments, the fan control module 520 controls the outdoor fan to be in an on state if the temperature of the photovoltaic module is greater than the first temperature threshold.
In some embodiments, temperature acquisition module 510 is further configured to acquire an outdoor temperature at which the at least one photovoltaic multi-connected line is located.
In some embodiments, the fan control module 520 maintains the on state of the outdoor fan if the outdoor fan is already in the on state if the temperature of the photovoltaic module is less than or equal to the first temperature threshold and greater than or equal to the second temperature threshold; and if the outdoor fan is in an unopened state and the power generation power of the photovoltaic module is greater than the first trigger power, controlling the outdoor fan to be in an opened state, and if the power generation power of the photovoltaic module is less than or equal to the first trigger power, maintaining the stopping state of the outdoor fan.
In some embodiments, the fan control module 520 controls the outdoor fan to be in the on state if the generated power of the photovoltaic module is greater than the first trigger power when the temperature of the photovoltaic module is less than the second temperature threshold; if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power and larger than or equal to the second trigger power, the start-stop state of the outdoor fan is maintained; and if the power generation power of the photovoltaic module is smaller than the second trigger power, controlling the outdoor fan to be in a stop state.
In the above embodiment, the fan of the photovoltaic multi-split air conditioner is not started, but when the photovoltaic module generates electricity, if the photovoltaic multi-split air conditioner is under a high temperature working condition, whether the fan needs to be started or not is determined according to the temperature and the generated power of the photovoltaic module, and the fan dissipates heat for the photovoltaic module, so that damage to components can be avoided.
FIG. 7 is a schematic diagram of other embodiments of a fan control apparatus of the present disclosure, including a power harvesting module 710 and a fan control module 720.
The power obtaining module 710 is configured to obtain, after the modular multi-split system is started, the power of the photovoltaic module of the at least one photovoltaic multi-split system when the at least one photovoltaic multi-split system in the modular multi-split system is not started or the modular multi-split system is in an oil return state or a defrosting state.
In some embodiments, it is also necessary to obtain the outdoor temperature at which the photovoltaic multi-split line is located.
The fan control module 720 is configured to control the working state of the outdoor fan based on the generated power of the photovoltaic module when the outdoor temperature of the at least one photovoltaic multi-connected unit is greater than the outdoor temperature threshold.
In some embodiments, the fan control module 720 is configured to control the outdoor fan to be in an on state if the generated power of the photovoltaic assembly is greater than the first trigger power; if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power and larger than or equal to the second trigger power, the start-stop state of the outdoor fan is maintained; and if the power generation power of the photovoltaic module is smaller than the second trigger power, controlling the outdoor fan to be in a stop state.
In the above embodiment, the fan of the photovoltaic multi-split air conditioner is not started, but when the photovoltaic module generates electricity, if the photovoltaic multi-split air conditioner is under a high temperature working condition, whether the fan needs to be started or not is determined according to the generated power of the photovoltaic module, and the fan dissipates heat for the photovoltaic module, so that damage to components can be avoided.
Fig. 8 is a schematic diagram of other embodiments of a fan control apparatus of the present disclosure, the fan control apparatus 800 including a memory 810 and a processor 820. Wherein: memory 810 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory 810 is used to store instructions in the embodiments described above. Processor 820 is coupled to memory 810 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 820 is configured to execute instructions stored in a memory.
In some embodiments, processor 820 is coupled to memory 810 through BUS BUS 830. The fan control apparatus 800 may also be coupled to an external storage device 850 via a storage interface 840 to invoke external data, and may also be coupled to a network or another computer system (not shown) via a network interface 860, not described in detail herein.
In the embodiment, the data instruction is stored by the memory, and then the instruction is processed by the processor, so that high temperature damage to components generated by operation of the photovoltaic module can be avoided.
In other embodiments of the present disclosure, a modular multi-split system is also provided, which includes the fan control apparatus in the above embodiments.
The modularized multi-split system comprises a plurality of photovoltaic multi-split systems, or as shown in fig. 9, the modularized multi-split system comprises one or more photovoltaic multi-split systems and one or more non-photovoltaic multi-split systems, wherein a photovoltaic external machine 1 … N is connected with a non-photovoltaic external machine 1 … M in parallel, and each external machine is connected with a plurality of internal machines 1 … N. When the modularized multi-split air conditioner system operates, one external machine serves as a main external machine, and the fan control device is located in the main external machine. The start and stop and the running power of the fans of the photovoltaic multi-split air conditioner are controlled through the main external machine, so that the damage to components and parts due to high temperature during power generation of the photovoltaic module can be avoided, the running reliability of the system is improved, and the energy-saving effect of the system can be realized.
In other embodiments, a computer readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the methods of the above embodiments. It will be apparent to those skilled in the art that embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (19)
1. A fan control method, comprising:
after a modularized multi-split system is started, acquiring the temperature of a photovoltaic module of at least one photovoltaic multi-split system under the condition that the at least one photovoltaic multi-split system in the modularized multi-split system is not started or the modularized multi-split system is in an oil return state or a defrosting state; and
and controlling the working state of the outdoor fan of the at least one photovoltaic multi-split air conditioner based on the temperature of the photovoltaic module, wherein the outdoor fan dissipates heat for the photovoltaic module when being in a starting state.
2. The fan control method of claim 1, further comprising:
acquiring the power generation of the photovoltaic module; and
and controlling the working state of the outdoor fan based on the temperature and the generated power of the photovoltaic module under the condition that the outdoor temperature of the at least one photovoltaic multi-connected unit is greater than an outdoor temperature threshold.
3. The fan control method of claim 1, wherein controlling the operating state of the outdoor fan comprises:
controlling the outdoor fan to be in an on state under the condition that the temperature of the photovoltaic module is larger than a first temperature threshold value; and
and controlling the outdoor fan to be in a stop state under the condition that the temperature of the photovoltaic module is smaller than a second temperature threshold, wherein the second temperature threshold is smaller than the first temperature threshold.
4. The fan control method of claim 3, wherein controlling the operating state of the outdoor fan further comprises:
and when the temperature of the photovoltaic module is smaller than or equal to the first temperature threshold and larger than or equal to the second temperature threshold, the start-stop state of the outdoor fan is maintained.
5. The fan control method of claim 3, wherein controlling the operating state of the outdoor fan further comprises:
and under the condition that the outdoor fan is in an open state, controlling the operating frequency of the outdoor fan according to the temperature of the photovoltaic module, wherein the higher the temperature of the photovoltaic module is, the higher the operating frequency of the outdoor fan is.
6. The fan control method of claim 2, wherein controlling the operating state of the outdoor fan comprises:
controlling the outdoor fan to be in an on state under the condition that the temperature of the photovoltaic module is larger than a first temperature threshold value; and
in the case where the temperature of the photovoltaic module is less than or equal to the first temperature threshold and greater than or equal to the second temperature threshold,
if the outdoor fan is in the open state, the open state of the outdoor fan is maintained; and
and if the outdoor fan is in an unopened state and the power generation power of the photovoltaic module is larger than the first trigger power, controlling the outdoor fan to be in an opened state, and if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power, maintaining the stopping state of the outdoor fan.
7. The fan control method of claim 6, wherein controlling the operating state of the outdoor fan further comprises:
if the temperature of the photovoltaic module is smaller than the second temperature threshold, controlling the outdoor fan to be in an on state if the generated power of the photovoltaic module is larger than the first trigger power;
if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power and larger than or equal to the second trigger power, the start-stop state of the outdoor fan is maintained; and
and if the power generation power of the photovoltaic module is smaller than the second trigger power, controlling the outdoor fan to be in a stop state.
8. The blower control method of claim 7, wherein the first trigger power and the second trigger power are determined based on the outdoor temperature.
9. The fan control method according to any one of claims 1 to 8, further comprising:
and controlling the running power of the outdoor fan based on the temperature of the photovoltaic module under the condition that the at least one photovoltaic multi-connected unit is in a starting state.
10. The fan control method of claim 9, wherein controlling the operating power of the outdoor fan comprises:
increasing the current operating frequency of the outdoor fan under the condition that the temperature of the photovoltaic module is greater than a third temperature threshold value;
when the temperature of the photovoltaic module is smaller than or equal to the third temperature threshold value and larger than or equal to the fourth temperature threshold value, the operating frequency of the outdoor fan is kept; and
and under the condition that the temperature of the photovoltaic module is smaller than the fourth temperature threshold, controlling the operating frequency of the outdoor fan according to the pressure of the exhaust port of the compressor of the at least one photovoltaic multi-connected unit.
11. The fan control method of claim 10, wherein,
the third temperature threshold is equal to the first temperature threshold; and/or
The fourth temperature threshold is equal to the second temperature threshold.
12. A fan control method, comprising:
after a modularized multi-split system is started, acquiring the power of at least one photovoltaic module of the modularized multi-split system under the condition that at least one photovoltaic multi-split system is not started or the modularized multi-split system is in an oil return state or a defrosting state; and
and controlling the working state of the outdoor fan based on the power generation of the photovoltaic module under the condition that the outdoor temperature of the at least one photovoltaic multi-connected unit is greater than an outdoor temperature threshold.
13. The fan control method of claim 12, wherein controlling the operating state of the outdoor fan comprises:
if the power generation power of the photovoltaic module is larger than the first trigger power, controlling the outdoor fan to be in an on state;
if the power generation power of the photovoltaic module is smaller than or equal to the first trigger power and larger than or equal to the second trigger power, the start-stop state of the outdoor fan is maintained; and
and if the power generation power of the photovoltaic module is smaller than the second trigger power, controlling the outdoor fan to be in a stop state.
14. A fan control apparatus comprising:
the temperature acquisition module is configured to acquire the temperature of a photovoltaic module of at least one photovoltaic multi-split system when the at least one photovoltaic multi-split system in the modular multi-split system is not started or the modular multi-split system is in an oil return state or a defrosting state after the modular multi-split system is started; and
and the fan control module is configured to control the working state of the outdoor fan of the at least one photovoltaic multi-split air conditioner based on the temperature of the photovoltaic module, wherein the outdoor fan dissipates heat for the photovoltaic module when being in a starting state.
15. The fan control apparatus of claim 14, further comprising:
a power acquisition module configured to acquire a generated power of the photovoltaic module, wherein,
the fan control module is further configured to control the working state of the outdoor fan based on the temperature and the generated power of the photovoltaic module under the condition that the outdoor temperature of the at least one photovoltaic multi-connected unit is greater than an outdoor temperature threshold.
16. A fan control apparatus comprising:
the power acquisition module is configured to acquire the power generation of the photovoltaic module of the at least one photovoltaic multi-split system when the at least one photovoltaic multi-split system in the modularized multi-split system is not started or the modularized multi-split system is in an oil return state or a defrosting state after the modularized multi-split system is started; and
and the fan control module is configured to control the working state of the outdoor fan based on the power generation of the photovoltaic module under the condition that the outdoor temperature of the at least one photovoltaic multi-connected unit is greater than an outdoor temperature threshold.
17. A fan control apparatus comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the fan control method of any of claims 1-13 based on instructions stored in the memory.
18. A modular multi-split system comprising:
the fan control apparatus of any of claims 14 to 17.
19. A non-transitory computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the fan control method of any of claims 1 to 13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310396836.7A CN116358122A (en) | 2023-04-13 | 2023-04-13 | Fan control method, device, system and storage medium |
| PCT/CN2023/140991 WO2024212582A1 (en) | 2023-04-13 | 2023-12-22 | Fan control method, apparatus and system, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310396836.7A CN116358122A (en) | 2023-04-13 | 2023-04-13 | Fan control method, device, system and storage medium |
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| CN116358122A true CN116358122A (en) | 2023-06-30 |
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| CN202310396836.7A Pending CN116358122A (en) | 2023-04-13 | 2023-04-13 | Fan control method, device, system and storage medium |
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| WO (1) | WO2024212582A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024212582A1 (en) * | 2023-04-13 | 2024-10-17 | 珠海格力电器股份有限公司 | Fan control method, apparatus and system, and storage medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204665577U (en) * | 2015-03-25 | 2015-09-23 | 珠海格力电器股份有限公司 | Air conditioner control system and air conditioning unit |
| CN205123255U (en) * | 2015-11-23 | 2016-03-30 | 珠海格力电器股份有限公司 | Multi-split power supply system and air conditioner |
| CN108571802A (en) * | 2018-05-21 | 2018-09-25 | 珠海格力电器股份有限公司 | Multi-split air conditioner and heat dissipation method thereof |
| CN112564618B (en) * | 2020-12-03 | 2022-04-08 | 合肥阳光智维科技有限公司 | Cooling control method, device and system for photovoltaic module |
| CN112665015A (en) * | 2020-12-31 | 2021-04-16 | 珠海格力电器股份有限公司 | Multi-split air conditioning system and control method thereof |
| JP2022172631A (en) * | 2021-05-06 | 2022-11-17 | 三菱電機株式会社 | Air conditioning system and frame |
| CN114269118B (en) * | 2021-12-22 | 2023-04-14 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner heat dissipation system, photovoltaic air conditioner and control method of photovoltaic air conditioner |
| CN116358122A (en) * | 2023-04-13 | 2023-06-30 | 珠海格力电器股份有限公司 | Fan control method, device, system and storage medium |
-
2023
- 2023-04-13 CN CN202310396836.7A patent/CN116358122A/en active Pending
- 2023-12-22 WO PCT/CN2023/140991 patent/WO2024212582A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024212582A1 (en) * | 2023-04-13 | 2024-10-17 | 珠海格力电器股份有限公司 | Fan control method, apparatus and system, and storage medium |
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