CN114576810A - Control method and device of air conditioner, air conditioner and storage medium - Google Patents
Control method and device of air conditioner, air conditioner and storage medium Download PDFInfo
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- CN114576810A CN114576810A CN202011379889.0A CN202011379889A CN114576810A CN 114576810 A CN114576810 A CN 114576810A CN 202011379889 A CN202011379889 A CN 202011379889A CN 114576810 A CN114576810 A CN 114576810A
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- 230000009467 reduction Effects 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 7
- 238000004378 air conditioning Methods 0.000 description 115
- 230000002159 abnormal effect Effects 0.000 description 24
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- 239000003507 refrigerant Substances 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides a control method and device of an air conditioner, the air conditioner and a computer readable storage medium. The control method of the air conditioner is applied to the air conditioner, the air conditioner comprises a compressor, and the method comprises the following steps: under the condition that the generator is adopted to supply power to the air conditioner, when the compressor is started, the bus voltage of the air conditioner is obtained; and when the bus voltage is smaller than the preset voltage value, reducing the target operation frequency of the compressor in the next starting process. In the embodiment of the invention, the probability that the air conditioner and the generator can be matched with each other in the next operation is increased by reducing the target operation frequency of the compressor in the next starting process, so that the air conditioner can work normally more easily, the use requirement of a user is met, meanwhile, the generator with larger margin does not need to be replaced for the air conditioner, the load of replacing the generator can be reduced, and the device cost is correspondingly saved.
Description
Technical Field
The embodiment of the invention relates to the technical field of air conditioners, in particular to a control method and device of an air conditioner, the air conditioner and a computer readable storage medium.
Background
In a relevant area with economic lag, such as an african country and the like, the current power supply is unstable, and multiple interruptions of daily power often occur, so it is difficult to use some large-scale electric appliances locally, taking an air conditioner as an example, because the power supply does not meet the starting requirement of the air conditioner, the air conditioner often fails to start.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the invention provides a control method and device of an air conditioner, the air conditioner and a computer readable storage medium, which can normally start the air conditioner under the condition that a power supply for supplying power to the air conditioner is not required to be replaced.
In a first aspect, an embodiment of the present invention provides a control method for an air conditioner, where the air conditioner includes a compressor, and the control method includes:
when the compressor is started, acquiring the bus voltage of the air conditioner;
and when the bus voltage is smaller than a preset voltage value, reducing the target operation frequency of the compressor in the next starting process, wherein the preset voltage value is the voltage value of the compressor working at the current target operation frequency.
The control method of the air conditioner of the embodiment of the invention can obtain the bus voltage of the air conditioner when the compressor is started, and can determine that the bus voltage of the air conditioner is abnormal when the bus voltage is smaller than the voltage value of the compressor working at the current target operation frequency, because the air conditioner is started under the condition of supplying power by a corresponding power supply, the power supply state of the power supply can be determined to be abnormal through the abnormal bus voltage, namely, the air conditioner and the power supply at the time are not matched when in operation, under the condition, the target operation frequency of the compressor in the next starting process is reduced, so that the probability that the air conditioner and the power supply can be matched with each other when in the next operation is increased, the air conditioner can more easily carry out normal operation, the use requirement of a user is met, and meanwhile, the air conditioner does not need to be replaced by a larger allowance power supply, therefore, the burden of replacing the power supply can be reduced, and the device cost is correspondingly saved.
Optionally, in an embodiment of the present application, the reducing the target operating frequency of the compressor during the next start-up includes:
acquiring an operating frequency identifier;
when the operation frequency identification is set to be effective, the current target operation frequency of the compressor is reduced to a first operation frequency according to the operation frequency identification which is set to be effective, and the first operation frequency is stored, so that the compressor takes the first operation frequency as the target operation frequency in the next starting process.
It can be understood that, in the case that the obtained operation frequency identifier is set to be valid, the current target operation frequency of the compressor is reduced to the first operation frequency according to the operation frequency identifier and stored, and the first operation frequency is used in the next start, so that the air conditioner and the power supply source can be matched more easily in the case that the compressor adopts the first operation frequency.
Optionally, in an embodiment of the present application, the reducing the target operating frequency of the compressor during the next start-up includes:
acquiring an operating frequency identifier;
when the operation frequency identification is set to be invalid, setting the operation frequency identification to be valid;
and reducing the current target operation frequency of the compressor to a first operation frequency according to the operation frequency identification which is set to be effective, and saving the first operation frequency so that the compressor takes the first operation frequency as the target operation frequency in the next starting process.
It is understood that, in the case where the acquired operation frequency flag is set to be invalid, the operation frequency flag is reset to be valid so as to adjust and record the first operation frequency of the compressor in the next start according to the operation frequency flag reset to be valid, and by using the first operation frequency in the next start, the air conditioner and the power supply are more easily matched in the case where the compressor adopts the first operation frequency.
Optionally, in an embodiment of the present application, after reducing the target operating frequency of the compressor during the next start-up, the method further includes:
and under the condition of restarting the compressor, when the bus voltage is greater than or equal to the preset voltage value, maintaining the first operating frequency as the target operating frequency of the compressor.
It can be understood that, in the case that the target operation frequency during the next start-up is set, by restarting the compressor at the set operation frequency and when the bus voltage is greater than or equal to the preset voltage value, it can be determined that the bus voltage of the air conditioner at that time is in a normal state, indicating that the air conditioner and the power supply can be well matched at that time, and therefore, by maintaining the first operation frequency as the target operation frequency of the compressor, the air conditioner and the power supply can be kept well matched during the later use.
Optionally, in an embodiment of the present application, the method further includes:
clearing the operating frequency flag while maintaining the first operating frequency as a target operating frequency for the compressor.
It can be understood that, when the first operating frequency is maintained as the target operating frequency of the compressor, it indicates that the target operating frequency of the compressor in the next starting process does not need to be reduced, and therefore, the corresponding operating frequency identifier does not need to be used, that is, the operating frequency identifier at this time does not have practical significance, and if the operating frequency identifier is stored, the storage space inside the air-conditioning platform may be affected, so that the storage space can be cleared, and meanwhile, the probability that the target operating frequency of the compressor is reduced due to the fact that the operating frequency identifier is used incorrectly can also be reduced.
Optionally, in an embodiment of the present application, the method further includes;
and when the target operation frequency of the compressor is less than the minimum target operation frequency of the compressor, sending out fault prompt information.
It can be understood that, no matter how to reduce the target operating frequency of the compressor, the actual target operating frequency of the compressor cannot be lower than the minimum target operating frequency of the compressor, and therefore, if the target operating frequency of the compressor is lower than the minimum target operating frequency of the compressor, it indicates that the air conditioner is in a fault state at the moment, and therefore, the user can be reminded that the air conditioner is in fault by sending out the fault prompt message, so that the user can conveniently select to maintain the air conditioner.
Optionally, in an embodiment of the present application, the operating frequency identifier includes a lower frequency identifier and/or a power down protection identifier; the frequency reduction identification is used for indicating whether the compressor needs to operate at a lower frequency in the next starting process; the power failure protection mark is used for indicating whether the power supply for the air conditioner is powered down in the last operation process.
It can be understood that the corresponding indication can be provided for the next starting of the compressor through the lower frequency identification and/or the over-power protection identification, so that the target operation frequency of the compressor during the next starting process can be selectively reduced according to the indication, and the air conditioner and the power supply can be matched more easily.
In a second aspect, an embodiment of the present invention further provides an air conditioner control device, including: the air conditioner control method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the control method of the air conditioner according to any embodiment of the first aspect.
The air conditioner control device of the embodiment of the invention can realize the control method of the air conditioner by executing the computer program through the processor, thereby obtaining the bus voltage of the air conditioner when the compressor is started, and determining that the bus voltage of the air conditioner is abnormal when the bus voltage is smaller than the preset voltage value, because the air conditioner is started under the condition of corresponding power supply, the power supply state of the power supply is abnormal through the bus voltage abnormity, namely, the air conditioner and the power supply are not matched when in operation, under the condition, the probability that the air conditioner and the power supply can be matched with each other when in next operation is increased by reducing the target operation frequency of the compressor in the next starting process, so that the air conditioner can more easily carry out normal operation, thereby meeting the use requirements of users, meanwhile, a larger allowance of power supply does not need to be replaced for the air conditioner, so that the burden of replacing the power supply can be reduced, and the cost of the device is correspondingly saved.
In a third aspect, an embodiment of the present invention further provides an air conditioner, including: the air conditioner control device according to the embodiment of the second aspect.
The air conditioner of the embodiment of the invention comprises an air conditioner control device, wherein the air conditioner control device can execute the control method of the air conditioner, so that the bus voltage of the air conditioner is obtained when a compressor is started, and when the bus voltage is smaller than a preset voltage value, the bus voltage of the air conditioner is determined to be abnormal at the moment, because the air conditioner is started under the condition that the corresponding power supply supplies power, the power supply state of the power supply can also be determined to be abnormal through the abnormal bus voltage, namely, the air conditioner and the power supply at the moment are not matched when in operation, under the condition, the probability that the air conditioner and the power supply can be matched with each other when in the next operation is increased by reducing the target operation frequency of the compressor in the next starting process, so that the air conditioner can work normally more easily, and the use requirements of users are met, meanwhile, a power supply with larger allowance does not need to be replaced for the air conditioner, so that the burden of replacing the power supply can be reduced, and the cost of the device is correspondingly saved.
In a fourth aspect, embodiments of the present invention further provide a computer-readable storage medium storing computer-executable instructions for executing the method for controlling an air conditioner according to any one of the embodiments of the first aspect.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of an air conditioning platform according to an embodiment of the present invention;
FIG. 2 is a schematic view of an air conditioning platform according to another embodiment of the present invention;
FIG. 3 is a flow chart of a control method provided by one embodiment of the present invention;
FIG. 4 is a flow chart of a control method for reducing a target operating frequency of a compressor during a next start-up process according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a control method for reducing a target operating frequency of a compressor during a next start-up according to another embodiment of the present invention;
FIG. 6 is a flowchart illustrating a control method according to an embodiment of the present invention after reducing a target operating frequency of a compressor during a next start-up process;
FIG. 7 is a flow chart of a control method provided by another embodiment of the present invention;
fig. 8 is a flowchart after a target operation frequency of a compressor during a next start-up process is lowered in a control method according to another embodiment of the present invention;
FIG. 9 is a flowchart of a method for implementing the control provided by an embodiment of the present invention;
fig. 10 is a schematic diagram of an air conditioner control device according to an embodiment of the present invention;
fig. 11 is a schematic diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that although functional blocks are partitioned in a schematic diagram of an apparatus and a logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the partitioning of blocks in the apparatus or the order in the flowchart. The terms first, second and the like in the description and in the claims, and the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The invention provides a control method of an air conditioner, a device thereof, the air conditioner and a computer readable storage medium, wherein when a compressor is started, the bus voltage of the air conditioner is obtained, and when the bus voltage is smaller than a preset voltage value, the bus voltage of the air conditioner at the moment can be determined to be abnormal, because the air conditioner is started under the condition of supplying power to a corresponding power supply, the power supply state of the power supply can also be determined to be abnormal through the abnormal bus voltage, namely, the air conditioner and the power supply at the moment are not matched when in operation, under the condition, the probability that the air conditioner and the power supply can be matched with each other when in the next operation is increased by reducing the target operation frequency of the compressor in the next starting process, so that the air conditioner can more easily work normally, the use requirement of a user is met, and meanwhile, the air conditioner does not need to replace a larger power supply for the air conditioner, therefore, the burden of replacing the power supply can be reduced, and the device cost is correspondingly saved.
The embodiments of the present invention will be further explained with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of an air conditioning platform 100 according to an embodiment of the present invention.
In the example of fig. 1, the air-conditioning platform 100 is connected to the generator 200, and therefore can be started and operated when the generator 200 supplies power, and may be applied to areas where the utility power is abnormal or unstable, such as mountainous areas, africa, etc., and the air-conditioning platform 100 includes the compressor 110, the compressor 110 functions to compress and drive the refrigerant in the refrigerant circuit of the air-conditioning platform, and when the generator 200 supplies power to the air-conditioning platform 100, the compressor 110 is powered on and started at the corresponding target operating frequency, so as to provide the compression refrigeration for the air-conditioning platform 100.
It can be understood that the target operating frequency of the compressor 110 may be the power frequency thereof, and thus the real-time target operating frequency of the compressor 110 may be determined by obtaining the real-time power frequency when the compressor 110 operates, specifically, for different air-conditioning platforms 100, the compressor 110 may be different, for example, if the air-conditioning platform 100 is of a frequency conversion type, the compressor 110 may employ a dc brushless permanent magnet motor, and the power frequency when the motor operates at this time is the target operating frequency of the compressor 110, and accordingly, for those skilled in the art, it can be understood that, when the air-leveling platform 100 is of another type, the compressor 110 may also be similarly set, and further, the target operating frequency of the compressor 110 is correspondingly obtained, and in order to avoid redundancy, this embodiment is not described herein again.
It can be understood that the air-conditioning platform 100 may further include a controller or a control system constructed based on the controller, where the controller includes an inverter circuit, and the inverter circuit may convert a dc power supply running in the air-conditioning platform 100 into an ac power supply with a frequency and a voltage that are both arbitrarily adjustable, so that the air-conditioning platform 100 can implement related control on the air-conditioning platform 100 according to the converted power supply, where an input voltage of the inverter circuit is a bus voltage of the air-conditioning platform 100, and therefore, an operating state of the inverter circuit may be determined by the bus voltage, so that whether a related control manner of the air-conditioning platform 100 is normal or not may be known, and meanwhile, since the input voltage is related to a power supply or an output power that can be provided by the generator 200, it may also be known whether the power supply or the output power that is provided by the generator 200 meets requirements of the air-conditioning platform 100, that is, it can be known whether the generator 200 can adaptively supply power to the air-conditioning platform 100.
It is understood that the air conditioning platform 100 may further include an information storage device, which is capable of recording and storing the operation data parameters of the air conditioning platform 100 in real time, so as to determine and preset corresponding regular data parameters from the recorded operation data parameters, and the set regular data parameters may enable more stable and reliable control over the air conditioning platform 100, and meanwhile, for a user or the air conditioning platform 100 itself, since the data parameters of the air conditioning platform 100 may be queried in real time, the air conditioning platform 100 may be controlled more well based on the set regular data parameters.
It is to be understood that the information storage device may be a charged Erasable Programmable Read Only Memory (EEPROM), which is a semiconductor Memory device that can be rewritten many times electronically, and since the EEPROM does not need to be irradiated with ultraviolet rays and removed, information on the chip can be erased with a specific voltage, and thus, the EEPROM is conveniently used to write new operating data parameters. In addition, the information storage device may also be other memories with similar functions, such as a flash memory, a digital versatile disk, a magnetic box, a magnetic tape, a magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and that can be accessed by a computer, and thus, for the sake of redundancy, will not be described herein again.
It is understood that, as shown in fig. 2, when the utility power is in a normal power supply state, the air conditioning platform 100 may also be controlled not to be connected to the generator 200, but to be directly supplied with the utility power.
It is understood that, in a normal power supply state of the utility power, the utility power may also be supplied by using a generator, in this case, the air-conditioning platform 100 may be controlled based on a specific operation parameter, for example, a threshold may be set, the threshold is used to define whether the generator mode or the utility power mode is used, and a similar control instruction may also be defined, for example, a user may decide which operation mode is used to implement the relevant control on the air-conditioning platform 100 during the actual use process, which is not limited in this embodiment.
Also, the air conditioning platform 100 may further include a memory and a processor, respectively, wherein the memory and the processor may be connected through a bus or other means.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and these remote memories may be connected to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The air conditioning platform 100 and the application scenario described in the embodiment of the present invention are for more clearly illustrating the technical solution of the embodiment of the present invention, and do not limit the technical solution provided in the embodiment of the present invention, and it can be known by those skilled in the art that the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems along with the evolution of the air conditioning platform 100 and the occurrence of new application scenarios.
It will be appreciated by those skilled in the art that the air conditioning platform 100 shown in fig. 1 or 2 is not intended to limit embodiments of the present invention and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
Based on the structure of the air conditioning platform 100, various embodiments of the control method of the present invention are proposed.
As shown in fig. 3, fig. 3 is a flowchart of a control method according to an embodiment of the present invention, which may be applied to the air conditioning platform shown in fig. 1 or fig. 2, and the method includes, but is not limited to:
step S100, when a compressor is started, acquiring the bus voltage of an air-conditioning platform;
and S200, when the bus voltage is smaller than a preset voltage value, reducing the target operation frequency of the compressor in the next starting process, wherein the preset voltage value is the voltage value of the compressor working at the current target operation frequency.
It can be understood that, in the case of being applied to the air-conditioning platform shown in fig. 1, when the compressor is started, the bus voltage of the air-conditioning platform is obtained, and when the bus voltage is smaller than the preset voltage value, it can be determined that the bus voltage of the air-conditioning platform is abnormal at this time, since the air-conditioning platform is started under the condition that the generator supplies power, it can also be determined that the power supply state of the generator is abnormal through the bus voltage abnormality, that is, the output voltage of the generator rapidly decreases due to the fault of the generator at this time, and further, the corresponding bus voltage of the air-conditioning platform obtaining the output voltage also rapidly decreases due to the fault of the generator, so whether the generator has a fault can be determined through the bus voltage being smaller than the corresponding threshold value, as described above, if the bus voltage of the air-conditioning platform is abnormal, it is indicated that the air-conditioning platform and the generator at this time are not matched during operation, under the condition, the target operation frequency of the compressor in the next starting process is reduced, so that the probability that the air-conditioning platform and the generator can be matched with each other in the next operation is increased, the air-conditioning platform can work normally more easily, the use requirement of a user is met, meanwhile, the generator with larger margin does not need to be replaced for the air-conditioning platform, the burden of replacing the generator can be reduced, and the device cost is correspondingly saved.
It can be understood that, in the case of being applied to the air-conditioning platform shown in fig. 2, when the compressor is started, the bus voltage of the air-conditioning platform is obtained, and when the bus voltage is smaller than the preset voltage value, it can be determined that the bus voltage of the air-conditioning platform is abnormal at this time, since the air-conditioning platform is started under the mains supply condition, it can also be determined that the current mains supply voltage is in an abnormal state through the abnormal bus voltage, that is, the mains supply voltage at this time cannot provide the compressor with the corresponding voltage value under the current target operating frequency, so it can be determined whether the generator has a fault through the bus voltage being smaller than the corresponding threshold value, as described above, if the bus voltage of the air-conditioning platform is abnormal, it indicates that the mains voltage at this time is not enough to provide the voltage value of the compressor under the current operating frequency, in this case, by reducing the target operating frequency of the compressor in the next starting process, the probability that the air conditioner platform and the mains supply voltage can be matched with each other when the air conditioner platform and the mains supply voltage operate next time is increased, so that the air conditioner platform can work normally more easily, the use requirement of a user is met, meanwhile, a generator with a larger margin does not need to be replaced for the air conditioner platform, the burden of a power supply which is replaced by an air conditioner power supply can be reduced, and the device cost is correspondingly saved.
It can be understood that, corresponding to the situation of using the generator to supply power, when the bus voltage is less than the preset voltage value, it indicates that the output power that can be provided by the generator at this time cannot match the air-conditioning platform, and the generator stops supplying power due to the over-power protection mechanism, and at this time, the air-conditioning platform also stops operating correspondingly, and at the same time, by reducing and recording the target operating frequency of the compressor in the next starting process, when the empty leveling platform is started by the generator next time, the difficulty that the output power of the generator matches the target operating frequency of the compressor in the next starting process can be reduced, so that the generator can be more easily matched with the air-conditioning platform, and meanwhile, it can be understood that the judgment of the bus voltage and the subsequent operation thereof can be continuously circulated, that is, the reduced target operating frequency of the compressor in the next starting process is used, if the bus voltage is still lower than the preset voltage value, the step can be continued on the basis of the target operation frequency of the reduced compressor in the next starting process, and circulation is realized.
It is understood that, since the compressor is consistent with the target operation frequency after the start at the start, that is, the target operation frequency of the compressor is stable and does not change with time, the bus voltage of the air-conditioning platform may be obtained at any time point after the start of the compressor, which is not limited in this embodiment.
As shown in fig. 4, "reducing the target operating frequency of the compressor during the next start-up" in step S200 may include, but is not limited to:
s210, acquiring an operation frequency identifier;
s220, when the operation frequency identification is set to be effective, the current target operation frequency of the compressor is reduced to a first operation frequency according to the set operation frequency identification, and the first operation frequency is stored, so that the compressor takes the first operation frequency as the target operation frequency in the next starting process.
It can be understood that, in the case that the obtained operation frequency identifier is set to be valid, the current target operation frequency of the compressor is reduced to the first operation frequency according to the operation frequency identifier and is saved, and the first operation frequency is used in the next start-up, so that the air-conditioning platform and the power supply for supplying power to the air-conditioning platform are more easily matched in the case that the compressor adopts the first operation frequency.
It is understood that the operation frequency identifier includes a lower frequency identifier and/or a power down protection identifier; the frequency reduction mark is used for indicating whether the compressor needs to operate at a lower frequency in the next starting process; the power failure protection mark is used for indicating whether the power supply supplying power to the air conditioning platform is powered down or not in the last operation process. It can be understood that the corresponding indication can be provided for the next starting of the compressor through the frequency reduction identification and/or the power down protection identification, so that the target operation frequency of the compressor in the next starting process can be selectively reduced according to the indication, so that the air-conditioning platform and the corresponding power supply can be matched more easily.
It can be understood that, under the condition of adopting the generator to supply power, when the output power provided by the generator cannot be matched with the air-conditioning platform, the generator stops supplying power due to an over-power protection mechanism, the air-conditioning platform also stops running correspondingly, and the power-down protection mark is used for indicating whether the generator supplying power to the air-conditioning platform has over-power protection and power-down in the last running process.
It can be understood that, under the condition of adopting the mains supply, when the voltage that the mains supply can provide can not match the target operating frequency of the air-conditioning platform, in order to prevent the mains supply voltage from causing adverse effect to the air-conditioning platform, the mains supply can be selected to stop at this moment, the air-conditioning platform also can stop operating, and the power-down protection mark is used for indicating whether the mains supply supplying power for the air-conditioning platform has power down because of protecting the air-conditioning platform from being damaged in the last operating process at this moment. It can be understood that the operation frequency flag is already set to be valid, that is, is used to indicate or prompt that the current frequency of the compressor should be reduced, it can be understood that the operation frequency flag acquired for the first time in the process of cycle start is set to be valid, which indicates that the target operation frequency of the compressor in the last start process is already in a reduced state, that is, the start at this time belongs to at least the second frequency reduction rate start of the compressor, and the flag may exist all the time and be called cyclically continuously, so that if it is still detected that the bus voltage is smaller than the preset voltage value in the subsequent start processes, the last or previous acquired operation frequency flag may be called to implement the frequency reduction process.
It can be understood that the operation frequency identifier may be carried by the air-conditioning platform itself as a mark for frequency identification, or may be obtained by inputting from the outside to the air-conditioning platform, and the operation frequency identifier may be recorded in an information storage device in the air-conditioning platform, and when it is necessary to set validity, it may be read from the information storage device for operation, or the information storage device may modify its validity by itself according to a corresponding instruction issued by the air-conditioning platform.
It can be understood that the reduction range of the first operating frequency relative to the target operating frequency may be set by a user according to an actual situation, or a corresponding reduction range may be designed on the air conditioning platform in advance, which is not limited in this embodiment, and meanwhile, if the compressor is started multiple times, the first operating frequency may also have a plurality of different values, and the values may be stored and read by an information storage device in the air conditioning platform, so as to ensure data security of the first operating frequency.
As shown in fig. 5, "reducing the target operating frequency of the compressor during the next start-up" in step S200 may include, but is not limited to:
s230, acquiring an operation frequency identifier;
s230, when the operation frequency identifier is set to be invalid, setting the operation frequency identifier to be valid;
and S250, reducing the current target operation frequency of the compressor to a first operation frequency according to the set effective operation frequency identification, and storing the first operation frequency so that the compressor takes the first operation frequency as the target operation frequency in the next starting process.
It can be understood that, in the case that the obtained operation frequency identification is set to be invalid, the operation frequency identification is reset to be valid, so as to adjust and record the first operation frequency of the compressor in the next starting according to the operation frequency identification reset to be valid, and the first operation frequency is used in the next starting, so that the air-conditioning platform and the generator are easier to be matched in the case that the compressor adopts the first operation frequency.
It can be understood that, when the operating frequency flag is set to be invalid, that is, used to indicate or prompt that the current frequency of the compressor at the initial time may be maintained, that is, the current frequency of the compressor is not reduced, but when the bus voltage is less than the preset voltage value, that is, it can be understood that the moment when the bus voltage is acquired for the first time in the process of cycle start is less than the preset voltage value at present, the operating frequency flag should be set to be valid again, and the flag may exist and be called cyclically continuously, so that, if it is still detected that the bus voltage is less than the preset voltage value in the subsequent more start processes, the last or previous acquired operating frequency flag may be called to implement the frequency reduction process.
It can be understood that the reduction range of the first operating frequency relative to the target operating frequency may be set by a user according to an actual situation, or a corresponding reduction range may be designed on the air conditioning platform in advance, which is not limited in this embodiment, and meanwhile, if the compressor is started multiple times, the first operating frequency may also have a plurality of different values, and the values may be stored and read by an information storage device in the air conditioning platform, so as to ensure data security of the first operating frequency.
As shown in fig. 6, after step S200 is executed, the control method further includes, but is not limited to:
and step S300, under the condition of restarting the compressor, when the bus voltage is greater than or equal to a preset voltage value, maintaining the first operating frequency as the target operating frequency of the compressor.
It can be understood that, in the case that the target operation frequency during the next starting process is set, by restarting the compressor at the set target operation frequency, and when the bus voltage is greater than or equal to the preset voltage value, it can be determined that the bus voltage of the air-conditioning platform at this time is in a normal state, indicating that the air-conditioning platform and the power supply for supplying power to the air-conditioning platform can be well matched at this time, so that by maintaining the first operation frequency as the target operation frequency of the compressor, the air-conditioning platform and the power supply for supplying power to the air-conditioning platform can be well matched in the later use process.
It should be understood that "maintaining" described in step S300 indicates that the air-conditioning platform may continuously use the first operating frequency as the target operating frequency of the compressor in the current operating state, and also indicates that the air-conditioning platform may also use the first operating frequency as the target operating frequency of the compressor to perform operation after the air-conditioning platform is restarted due to power failure, for example, the air-conditioning platform may be applied to a case of replacing a generator, or a case of restarting through the commercial power, and the like, which is not limited in this embodiment.
As shown in fig. 7, the control method further includes, but is not limited to:
in step S400, the operation frequency flag is cleared while maintaining the first operation frequency as the target operation frequency of the compressor.
It can be understood that, when the first operating frequency is maintained as the target operating frequency of the compressor, it indicates that the target operating frequency of the compressor in the next starting process does not need to be reduced, and therefore, the corresponding operating frequency identifier does not need to be used, that is, the operating frequency identifier at this time does not have practical significance, and if the operating frequency identifier is stored, the storage space inside the air-conditioning platform may be affected, so that the storage space can be cleared, and meanwhile, the probability that the target operating frequency of the compressor is reduced due to the fact that the operating frequency identifier is used incorrectly can also be reduced.
As shown in fig. 8, after step S200 is executed, the control method further includes, but is not limited to:
and step S500, when the target operation frequency of the compressor is less than the minimum target operation frequency of the compressor, sending out fault prompt information.
It can be understood that, considering according to the actual operation condition of the air-conditioning platform, since the actual target operation frequency of the compressor is unlikely to be less than the minimum target operation frequency no matter how the target operation frequency of the compressor is reduced, if the target operation frequency of the compressor is less than the minimum target operation frequency of the compressor, it indicates that the air-conditioning platform is in a fault state at this time, and therefore, the fault prompt message is sent out to remind a user that the air-conditioning platform has a fault, so that the user can select to maintain the air-conditioning platform.
It should be understood that the form of the fault notification message may be, but is not limited to, sounding an audio alarm, sounding a light alarm, or sounding a text prompt, and accordingly, the fault notification message may be sent by providing a corresponding device on the air conditioning platform, which is not limited in this embodiment.
In addition, in order to more fully illustrate the working principle of the present invention, a specific flowchart of an embodiment of the control method applied to the air-conditioning platform shown in fig. 1 for implementing the present invention is given below for description, and it should be understood that, since the control method applied to the air-conditioning platform shown in fig. 2 and the control method applied to the air-conditioning platform shown in fig. 1 belong to the same inventive concept, the specific flowchart of the control method applied to the air-conditioning platform shown in fig. 2 may refer to the specific flowchart of the embodiment shown in fig. 9, and is not repeated herein.
As shown in fig. 9, in the illustrated flowchart, the information storage device in the air-conditioning platform employs an EEPROM.
Firstly, powering on an air-conditioning platform, reading parameters stored in an EEPROM (electrically erasable programmable read-only memory), determining whether to start the air-conditioning platform in a generator mode or a mains supply mode according to the historical parameters, and if the air-conditioning platform is started according to normal parameters under the mains supply, recording the frequency as F1;
then, if the generator mode is adopted for starting, it is determined that the target operating frequency F1 is also adopted for starting the compressor, and the bus voltage thereof is detected:
if the bus voltage is judged to be normal, namely when the bus voltage is greater than a preset voltage value, maintaining the current target operation frequency of the compressor, and clearing a power reduction identifier and/or an over-power protection identifier aiming at the generator;
if the bus voltage is determined to be abnormal, that is, when the bus voltage is less than the preset voltage value, under the condition that only the power reduction flag is set to be valid, and at this time, the over-power protection of the generator is not needed, the target operation frequency of the compressor in the next starting process is selected to be reduced to be F2, and the compressor can be restarted by adopting the reduced target operation frequency F2, or, under the condition that the over-power protection flag for the generator is also set to be valid, the F2 is further reduced, as shown in fig. 9, that is, the compressor is restarted by adopting the target operation frequency of F2 × a (a is less than 1), and the over-power protection of the generator can be realized.
Meanwhile, whether the power is smaller than the minimum running power of the compressor or not needs to be judged for F2 or F2A in each starting process, if yes, it is judged that the air conditioning platform has a display fault, and if not, the compressor is normally started.
In addition, as shown in fig. 10, an embodiment of the present invention provides an air conditioner control device 300, the air conditioner control device 300 including: memory 310, processor 320, and computer programs stored on memory 310 and executable on processor 320.
The processor 320 and memory 310 may be connected by a bus or other means.
It should be noted that the air conditioner control device 300 in the present embodiment may be applied to an air conditioning platform in the embodiment shown in fig. 1, the air conditioner control device 300 in the present embodiment may form a part of the air conditioning platform in the embodiment shown in fig. 1, and these embodiments all belong to the same inventive concept, so these embodiments have the same implementation principle and technical effect, and will not be described in detail herein.
Non-transitory software programs and instructions required to implement the control method of the above-described embodiment are stored in the memory 310, and when executed by the processor 320, perform the control method of the above-described embodiment, for example, performing the above-described method steps S100 to S200 in fig. 3, method steps S210 to S220 in fig. 4, method steps S230 to S250 in fig. 5, method step S300 in fig. 6, method step S400 in fig. 7, or method step S500 in fig. 8.
The air conditioner control device 300 according to the embodiment of the present invention can execute the computer program through the processor 320 to implement the control method, so as to obtain the bus voltage of the air conditioning platform when the compressor is started, and when the bus voltage is smaller than the preset voltage value, it can be determined that the bus voltage of the air conditioning platform is abnormal at this time, because the air conditioning platform is started under the condition of supplying power to the corresponding power supply, it can also be determined that the power supply state of the power supply is abnormal through the bus voltage abnormality, that is, it indicates that the air conditioning platform and the power supply are not matched when operating, in this case, by reducing the target operation frequency of the compressor in the next starting process, the probability that the air conditioning platform and the power supply can be matched with each other when operating next time is increased, so that the air conditioning platform can more easily perform normal operation, thereby satisfying the use requirement of the user, and at the same time, and a power supply with larger allowance does not need to be replaced for the air-conditioning platform, so that the burden of replacing the power supply can be reduced, and the cost of the device is correspondingly saved.
In addition, as shown in fig. 11, another embodiment of the present invention also provides an air conditioner 400 including: such as the air conditioner control device 300 in the embodiment shown in fig. 10.
The air conditioner 400 of the embodiment of the invention comprises an air conditioner control device 300, wherein the air conditioner control device 300 can execute a control method, so that when a compressor is started, the bus voltage of an air conditioning platform is obtained, and when the bus voltage is smaller than a preset voltage value, the bus voltage of the air conditioning platform at the moment can be determined to be abnormal, because the air conditioning platform is started under the condition corresponding to a power supply, the power supply state of the power supply can be determined to be abnormal through the bus voltage abnormality, namely, the air conditioning platform and the power supply at the moment are not matched when in operation, under the condition, the probability that the air conditioning platform and the power supply can be matched with each other when in the next operation is increased by reducing the target operation frequency of the compressor in the next starting process, so that the air conditioning platform can more easily and normally work, and the use requirements of users are met, meanwhile, a power supply with larger allowance does not need to be replaced for the air-conditioning platform, so that the burden of replacing the power supply can be reduced, and the cost of the device is correspondingly saved.
Since the air conditioner 400 in this embodiment and the air conditioner control device 300 in the above embodiment belong to the same inventive concept, the specific implementation of the air conditioner 400 in this embodiment may refer to the specific implementation of the air conditioner control device 300 in the above embodiment, and in order to avoid redundancy, the specific implementation of the air conditioner 400 in this embodiment is not described herein again.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, which stores computer-executable instructions, which are executed by a processor or a controller, for example, by a processor in the node embodiment, and can make the processor execute the control method in the above embodiment, for example, execute the above-described method steps S100 to S200 in fig. 3, method steps S210 to S220 in fig. 4, method steps S230 to S250 in fig. 5, method step S300 in fig. 6, method step S400 in fig. 7, or method step S500 in fig. 8.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (10)
1. A control method of an air conditioner is characterized by being applied to the air conditioner, wherein the air conditioner comprises a compressor, and the control method comprises the following steps:
when the compressor is started, acquiring the bus voltage of the air conditioner;
and when the bus voltage is smaller than a preset voltage value, reducing the target operation frequency of the compressor in the next starting process, wherein the preset voltage value is the voltage value of the compressor working at the current target operation frequency.
2. The method of claim 1, wherein said reducing the target operating frequency of the compressor during a next start-up comprises:
acquiring an operating frequency identifier;
when the operation frequency identification is set to be effective, the current target operation frequency of the compressor is reduced to a first operation frequency according to the operation frequency identification which is set to be effective, and the first operation frequency is stored, so that the compressor takes the first operation frequency as the target operation frequency in the next starting process.
3. The method of claim 1, wherein said reducing the target operating frequency of the compressor during a next start-up comprises:
acquiring an operating frequency identifier;
when the operation frequency identification is set to be invalid, setting the operation frequency identification to be valid;
and reducing the current target operation frequency of the compressor to a first operation frequency according to the operation frequency identification which is set to be effective, and saving the first operation frequency so that the compressor takes the first operation frequency as the target operation frequency in the next starting process.
4. The method of claim 2 or 3, further comprising, after reducing the target operating frequency of the compressor during a next start-up:
and under the condition of restarting the compressor, when the bus voltage is greater than or equal to the preset voltage value, maintaining the first operating frequency as the target operating frequency of the compressor.
5. The method of claim 4, further comprising:
clearing the operating frequency flag while maintaining the first operating frequency as a target operating frequency for the compressor.
6. The method of claim 1, further comprising, after reducing the target operating frequency of the compressor during a next start-up:
and when the target operation frequency of the compressor is less than the minimum target operation frequency of the compressor, sending out fault prompt information.
7. The method according to claim 2 or 3, wherein the operating frequency identification comprises a lower frequency identification and/or a power down protection identification; the frequency reduction identification is used for indicating whether the compressor needs to operate at a lower frequency in the next starting process; the power failure protection mark is used for indicating whether the power supply for the air conditioner is powered down in the last operation process.
8. An air conditioner control device comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the control method of the air conditioner according to any one of claims 1 to 7 when executing the computer program.
9. An air conditioner, comprising: the air conditioner control device according to claim 8.
10. A computer-readable storage medium storing computer-executable instructions for performing the control method of an air conditioner according to any one of claims 1 to 7.
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