CN108592340B - Control method and device of air conditioning system, storage medium and processor - Google Patents
Control method and device of air conditioning system, storage medium and processor Download PDFInfo
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- CN108592340B CN108592340B CN201810366364.XA CN201810366364A CN108592340B CN 108592340 B CN108592340 B CN 108592340B CN 201810366364 A CN201810366364 A CN 201810366364A CN 108592340 B CN108592340 B CN 108592340B
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- 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
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Fluid Mechanics (AREA)
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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method and device of an air conditioning system, a storage medium and a processor. Wherein, the method comprises the following steps: obtaining the power of a compressor in the air conditioning system, wherein the power of the compressor is the current operation power of the compressor in the air conditioning system; determining the complete machine power of the air conditioning system according to the power of the compressor; and controlling the working frequency of the compressor according to the power of the whole machine and the limited power, wherein the limited power is the maximum operation power allowed by the air conditioning system. The invention solves the technical problem that the existing air conditioning system can not accurately and accurately operate power according to the power demand.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a control method and device of an air conditioning system, a storage medium and a processor.
Background
Air conditioners are widely used in people's daily life. Under the condition that the temperature set by a user and the operation condition of the air conditioner are determined, the actual operation power of the air conditioner is basically determined and cannot be adjusted according to the power consumption requirement. When the non-electricity-consumption peak works normally, the air conditioner needs to operate under a higher power condition, and in the electricity-consumption peak period, the situation that the electricity supply is insufficient due to overlarge electricity demand is easy to occur. In this case, the air conditioner is required to reduce the operation power and perform cooling and heating with a relatively low load.
The frequency reduction treatment of the air conditioner can be realized by adjusting the current of the whole air conditioner, so that the running power of the air conditioner is reduced.
However, when the grid voltages are different, the same limited down-current will cause a large deviation of the limited power under different voltages. If the current of the whole air conditioner is used as a limiting condition under the rated voltage during design, when the voltage of a power grid is reduced to be very low, the power limitation of the whole air conditioner is too low, the working frequency of a compressor is too low, and the use comfort of the air conditioner is greatly influenced. And if the current of the whole machine under low voltage is taken as a limiting condition during design, when the voltage of a power grid is higher, the power cannot be limited below the required limit value requirement.
Aiming at the problem that the existing air conditioning system cannot accurately adjust the operation power according to the power demand, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a control method and device of an air conditioning system, a storage medium and a processor, which at least solve the technical problem that the existing air conditioning system cannot accurately and precisely operate power according to power consumption requirements.
According to an aspect of an embodiment of the present invention, there is provided a control method of an air conditioning system, including: the method comprises the steps of obtaining compressor power in an air conditioning system, wherein the compressor power is the current operation power of a compressor in the air conditioning system; determining the overall power of the air conditioning system according to the compressor power; and controlling the working frequency of the compressor according to the power of the whole machine and the limited power, wherein the limited power is the maximum power which allows the air conditioning system to operate.
Optionally, obtaining the compressor power in the air conditioning system comprises: collecting compressor current, wherein the compressor current is direct current for powering the compressor; a compressor power is determined based on the compressor current.
Optionally, determining the overall power of the air conditioning system according to the compressor power includes: and determining the power of the whole machine according to the power of the compressor and the operating power of specified equipment, wherein the specified equipment is part or all of the equipment except the compressor in the air conditioning system.
Optionally, the specifying device includes: outer fan, inner fan, and other loads; specifying the operating power of the device includes: the system comprises an outer fan power, an inner fan power and other load powers, wherein the outer fan power, the inner fan power and the other load powers are fixed values measured in advance.
Optionally, the controlling the operating frequency of the compressor according to the overall power and the limiting power comprises: judging whether the power of the whole machine is higher than the limit power; and under the condition that the power of the whole machine is higher than the limited power, adjusting the working frequency of the compressor.
Optionally, adjusting the operating frequency of the compressor comprises: judging whether the working frequency of the compressor is greater than the minimum working frequency of the compressor or not; under the condition that the working frequency of the compressor is the minimum working frequency of the compressor, controlling the compressor to stop; and reducing the working frequency of the compressor under the condition that the working frequency of the compressor is greater than the minimum working frequency of the compressor.
According to another aspect of the embodiments of the present invention, there is also provided a control apparatus of an air conditioning system, including: the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the compressor power in an air conditioning system, and the compressor power is the current operation power of a compressor in the air conditioning system; the determining unit is used for determining the overall power of the air conditioning system according to the compressor power; and the control unit is used for controlling the working frequency of the compressor according to the power of the whole machine and the limited power, wherein the limited power is the maximum power which allows the air conditioning system to operate.
Optionally, the obtaining unit includes: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring compressor current, and the compressor current is direct current for supplying power to the compressor; a first determination module to determine a compressor power based on the compressor current.
According to still another embodiment of the present invention, there is also provided a storage medium including a stored program, wherein the program executes the control method of the air conditioning system described in any one of the above when running.
According to another embodiment of the present invention, there is also provided a processor for executing a program, wherein the program executes the control method of the air conditioning system according to any one of the above embodiments.
In the embodiment of the invention, the operating power of the compressor in the air-conditioning system is obtained, the overall power of the air-conditioning system is determined according to the power of the compressor, the obtained overall power is compared with the limit power, whether the overall power meets the maximum operating power allowed by the air-conditioning system is determined, the working frequency of the compressor is controlled according to the comparison result, and the purpose of controlling the power of the compressor is achieved, so that the technical effect of controlling the overall power of the air-conditioning system is achieved, further, the limit power can be determined according to the actual power demand, namely, the maximum power allowed to operate the air-conditioning system is set according to the actual power demand, and the technical problem that the conventional air-conditioning system cannot accurately and accurately operate the power according to the power demand is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flowchart of a control method of an air conditioning system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an air conditioning control apparatus according to an embodiment of the present invention;
FIG. 3 is a flow chart of an air conditioning control scheme according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a control device of an air conditioning system according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an embodiment of the present invention, there is provided an embodiment of a control method of an air conditioning system, it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that here.
Fig. 1 is a flowchart of a control method of an air conditioning system according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:
step S102, obtaining the power of a compressor in the air-conditioning system, wherein the power of the compressor is the current operation power of the compressor in the air-conditioning system;
step S104, determining the complete machine power of the air conditioning system according to the compressor power;
and S106, controlling the working frequency of the compressor according to the power of the whole machine and the limited power, wherein the limited power is the maximum power allowing the air conditioning system to operate.
Through the steps, the operating power of the compressor in the air conditioning system is obtained, the overall power of the air conditioning system is determined according to the power of the compressor, the obtained overall power is compared with the limiting power, whether the overall power meets the maximum operating power allowed by the air conditioning system is determined, the working frequency of the compressor is controlled according to the comparison result, and the purpose of controlling the power of the compressor is achieved.
In the scheme provided in step S102, the compressor is an important component in the air conditioning system, and the current operating power of the compressor is the operating power of the compressor.
In the scheme provided in step S104, the total power of the air conditioning system is the overall power of the air conditioning system, which includes the operating power of the compressor and the operating power of other devices in the air conditioning system.
The operating power of the equipment other than the compressor in the air conditioning system is hardly affected by the voltage, and can be directly measured when designing the air conditioning system. Therefore, the operation power of other equipment except the compressor in the air conditioning system can be considered as a fixed value, and after the power of the compressor is determined, the overall power of the air conditioning system can be further determined.
In the scheme provided in step S104, the power of the compressor is the main part of the overall power of the air conditioning system, and may even reach more than 80% of the overall power, and the control of the compressor power and the overall power of the air conditioning system may be realized by controlling the operating frequency of the compressor.
Alternatively, the limit power is the maximum power that allows the air conditioning system to operate, and may be determined according to the circuit in which the air conditioning system is located.
For example, if the maximum power that allows the air conditioning system to operate in the circuit in which the air conditioning system is located is power a, it may be determined that the power a is the limited power.
Optionally, under the condition that the overall power of the air conditioning system is higher than the limit power, the working frequency of the compressor can be controlled, so that the running power of the compressor is reduced, and the overall power of the air conditioning system is further reduced.
As an alternative embodiment, obtaining the power of the compressor in the air conditioning system includes: collecting compressor current, wherein the compressor current is direct current for supplying power to a compressor; the compressor power is determined based on the compressor current.
It should be noted that, in the air conditioning system, the high-voltage direct current rectified by the controller is used to supply power to the compressor, so that the high-voltage direct current for supplying power to the compressor is not affected by actual voltage, and the power of the compressor can be directly acquired for calculation.
By adopting the embodiment of the invention, the power of the compressor can be accurately determined according to the direct current because the direct current is not influenced by the voltage of the circuit where the air conditioning system is located by collecting the direct current for supplying power to the compressor and then determining the power of the compressor according to the direct current.
As an alternative embodiment, the determining the overall power of the air conditioning system according to the power of the compressor comprises: and determining the power of the whole machine according to the power of the compressor and the operating power of the specified equipment, wherein the specified equipment is part or all of the equipment except the compressor in the air conditioning system.
By adopting the embodiment of the invention, the whole machine power comprises the compressor power and the running power of part or all of the equipment except the compressor in the air-conditioning system, and the whole machine power of the air-conditioning system can be determined according to the compressor power and the running power of part or all of the equipment except the compressor in the air-conditioning system.
Alternatively, the specified device may be a part of the air conditioning system other than the compressor. For example, in an air conditioning system, the operating power of some devices is very low, and the determination of the overall power of the air conditioning system is not affected, so that the power of the part of devices can be ignored, and the designated device can be other devices except the above devices and the compressor in the air conditioning system.
Alternatively, the total power of the air conditioning system may be determined by calculating the sum of the compressor power and the operating power of the designated equipment.
As an alternative embodiment, the specifying device includes: outer fan, inner fan, and other loads; specifying the operating power of the device includes: the system comprises an outer fan power, an inner fan power and other load powers, wherein the outer fan power, the inner fan power and the other load powers are fixed values measured in advance.
The air conditioning system comprises a compressor, an outer fan, an inner fan and other loads, the designated equipment can be the outer fan, the inner fan and other loads except the compressor, the running power of the designated equipment is the power of the outer fan, the power of the inner fan and the power of other loads, and the running power of the designated equipment cannot be changed due to the voltage change of a circuit where the air conditioning system is located, so that the running power of the designated equipment can be measured in advance to obtain a fixed value corresponding to the running power of the designated equipment.
Optionally, the overall power of the air conditioning system is obtained by a formula Pt of Pc + Pof + Pif + Po, where Pt is the overall power; pc is the compressor power; pof is the external fan power; pif is the internal fan power; po is the other load power.
As an alternative embodiment, the controlling the operating frequency of the compressor according to the power of the whole machine and the limited power comprises: judging whether the power of the whole machine is higher than the limit power; and under the condition that the power of the whole machine is higher than the limited power, adjusting the working frequency of the compressor.
By adopting the embodiment of the invention, whether the power of the whole machine is higher than the limit power or not is compared, and the working frequency of the compressor can be determined and adjusted under the condition that the power of the whole machine is higher than the limit power.
Optionally, in the case that the power of the whole machine is higher than the limit power, the working frequency of the compressor is reduced, or the compressor is controlled to stop.
Optionally, in the case that the power of the whole machine is equal to the limit power, the compressor is operated according to the current working frequency.
Optionally, in the case that the power of the whole machine is lower than the limit power, the working frequency of the compressor is increased.
As an alternative embodiment, adjusting the operating frequency of the compressor comprises: judging whether the working frequency of the compressor is greater than the minimum working frequency of the compressor or not; controlling the compressor to stop under the condition that the working frequency of the compressor is the minimum working frequency of the compressor; and reducing the working frequency of the compressor under the condition that the working frequency of the compressor is greater than the minimum working frequency of the compressor.
By adopting the embodiment of the invention, the minimum working frequency of the compressor can be the minimum working frequency which can enable the compressor to run, so that under the condition that the current working frequency of the compressor needs to be reduced, if the current working frequency of the compressor reaches the minimum working frequency of the compressor, the compressor is controlled to stop; if the current working frequency of the compressor is higher than the minimum working frequency of the compressor, the current working frequency of the compressor can be reduced to reduce the power of the compressor, so that the running power of the whole air-conditioning system is reduced, and the running power of the whole air-conditioning system meets the power limit.
The present invention also provides a preferred embodiment, which provides an air conditioner and a control method thereof.
The invention provides a new power limitation operation control mode, which ensures that the operation power of the air conditioner can not be influenced by the actual power supply voltage of a power grid under the condition of limiting the power operation. Directly calculating the running power of the compressor by collecting the current of the compressor, and taking the estimated value of the power of other loads such as an inner fan, an outer fan and the like as the power of the whole machine; and comparing the power of the whole machine with the power required by the power limit command to determine whether to perform frequency reduction treatment. The air conditioner realizes the power limiting mode, and the whole machine power of the air conditioner operates below the required limited power.
Optionally, the total power is composed of a compressor, an inner fan, an outer fan and other load power, where Pt is Pc + Pof + Pif + Po, where Pt represents the total power; pc denotes compressor power; pof denotes external fan power; pif represents the internal fan power; po represents other load power. The compressor power Pc is the main part, and even can account for more than 80% of the total machine power Pt, so the limitation of power is generally realized by directly reducing the compressor frequency and the compressor power Pc.
It should be noted that, for the inverter air conditioner, the power supplied by the compressor is rectified into high-voltage direct current by the controller, and the inverter air conditioner is not affected by actual voltage and can calculate by directly collecting the power of the compressor.
It should be noted that, the internal and external fans and other loads are determined during the design and selection of the air conditioner, and the power of the part of the loads is not affected by voltage basically and can be directly measured during the design.
Fig. 2 is a schematic diagram of an air conditioning control apparatus according to an embodiment of the present invention, as shown in fig. 2, including: a power limit command receiving module 21; a compressor current collection module 23; and a compressor frequency determination adjustment module 25.
Optionally, the power limit command receiving module may receive a power limit command given by a user, where the power limit command may be received through the internet access, or may be a separate setting command through a remote controller.
Optionally, after receiving the power limit command, a corresponding adjustment may be made to the compressor power of the air conditioner in accordance with the power limit command.
Optionally, the compressor current collecting module is configured to collect a current value during operation of the compressor.
Optionally, the compressor frequency determination and adjustment module is configured to calculate the power of the compressor according to a current value in the operation process of the compressor, obtain the total power of the current air conditioner, determine whether the frequency of the compressor needs to be adjusted, and perform corresponding adjustment according to a determination result.
The specific implementation scheme of the air conditioner control scheme provided by the invention is as follows:
1) under the condition that the air conditioner is operated, the air conditioner internal unit receives a remote control command of 'power limitation' and sends the remote control command to the external unit, or a 'power limitation' command is directly detected by the internet access;
2) and then the external unit adjusts the power protection parameters of the whole air conditioner according to the power limiting command.
3) The air conditioner collects the current compressor current and calculates the current compressor power.
4) And the air conditioner calculates the power of the whole machine.
5) The air conditioner compares the current complete machine power with the power protection parameter and judges whether the frequency of the compressor needs to be adjusted.
6) And under the condition that the frequency of the compressor needs to be adjusted, comparing the current frequency of the compressor with the lower limit of the frequency of the compressor by the air conditioner, judging whether the compressor needs to be stopped or not, and under the condition that the compressor needs to be stopped, controlling the compressor to be stopped.
7) Under the condition that the compressor is not needed to stop, the air conditioner performs frequency reduction treatment, and the power of the compressor is reduced to be below the power protection limit.
8) And after frequency reduction, re-detecting the power parameter according to the process to determine whether frequency reduction processing is needed.
Fig. 3 is a flowchart of an air conditioner control scheme according to an embodiment of the present invention, as shown in fig. 3, including:
step S301, collecting current of the compressor.
Step S302, the current compressor power is calculated.
Step S303, calculating the current complete machine power.
Step S304, judging whether the current complete machine power is larger than the limit power, wherein, under the condition that the current complete machine power is not larger than the limit power, executing step S305; and executing the step S306 under the condition that the current complete machine power is larger than the limit power.
Step S305, the current operation is maintained.
Step S306, judging whether the current compressor frequency is greater than the minimum working frequency of the compressor, wherein the step S307 is executed under the condition that the current compressor frequency is not greater than the minimum working frequency of the compressor; in the case that the current compressor frequency is greater than the compressor minimum operating frequency, step 308 is performed.
In step S307, the compressor stop process is controlled.
And step S308, reducing the working frequency of the compressor to reduce the power of the whole machine.
Alternatively, after step S308 is executed, the process may return to step S301 to detect the power of the air conditioner again, and determine whether the frequency reduction process is required.
By adopting the embodiment of the invention, the air conditioner can be ensured to be normally put into operation when a user puts into more electric appliances at home; the working frequency of the air conditioner can be kept as much as possible in the power limiting mode, and the comfort experience of a user at the moment is improved.
The invention aims to provide a control method of an air conditioner, which solves the technical problem that the existing air conditioner can not adjust the actual operation power according to the power consumption requirement through power limitation in the power consumption peak period and the non-power consumption peak period. Through a new power limiting scheme, the air conditioner can limit the power to operate without being influenced by the voltage of a power grid, the power limited by the whole machine can be in a required range when the power grid is at different voltages, the working frequency of the whole machine in a power limiting mode is provided as far as possible, and the comfort effect of operation in the power limiting mode is improved.
According to another aspect of the present invention, there is also provided a storage medium including a stored program, wherein when the program runs, an apparatus in which the storage medium is located is controlled to execute the control method of the air conditioning system.
According to another aspect of the present invention, an embodiment of the present invention further provides a processor, where the processor is configured to run a program, where the program is executed to perform the control method of the air conditioning system.
According to an embodiment of the present invention, there is also provided an embodiment of a device for controlling an air conditioning system, where it is to be noted that the control device of the air conditioning system may be configured to execute the control method of the air conditioning system in the embodiment of the present invention, and the control method of the air conditioning system in the embodiment of the present invention may be executed in the control device of the air conditioning system.
Fig. 4 is a schematic diagram of a control apparatus of an air conditioning system according to an embodiment of the present invention, and as shown in fig. 4, the apparatus may include: an obtaining unit 41, configured to obtain a compressor power in the air conditioning system, where the compressor power is a maximum power that allows the air conditioning system to operate; a determining unit 43, configured to determine the overall power of the air conditioning system according to the compressor power; and the control unit 45 is used for controlling the working frequency of the compressor according to the power of the whole machine and the limited power, wherein the limited power is the maximum operation power allowed by the air conditioning system.
It should be noted that the obtaining unit 41 in this embodiment may be configured to execute step S102 in this embodiment, the determining unit 43 in this embodiment may be configured to execute step S104 in this embodiment, and the controlling unit 45 in this embodiment may be configured to execute step S106 in this embodiment. The modules are the same as the corresponding steps in the realized examples and application scenarios, but are not limited to the disclosure of the above embodiments.
According to the embodiment of the invention, the operation power of the compressor in the air-conditioning system is obtained, the complete machine power of the air-conditioning system is determined according to the compressor power, the obtained complete machine power is compared with the limit power, whether the complete machine power meets the maximum operation power allowed by the air-conditioning system is determined, the working frequency of the compressor is controlled according to the comparison result, and the purpose of controlling the compressor power is achieved, so that the technical effect of controlling the complete machine power of the air-conditioning system is achieved, further, the limit power can be determined according to the actual power demand, namely, the maximum power allowed to operate the air-conditioning system is set according to the actual power demand, and the technical problem that the existing air-conditioning system cannot accurately and precisely operate the power according to the power demand is solved.
As an alternative embodiment, the obtaining unit includes: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring compressor current, and the compressor current is direct current for supplying power to a compressor; a first determination module determines compressor power based on compressor current.
As an alternative embodiment, the determining unit includes: and the second determining module is used for determining the power of the whole machine according to the power of the compressor and the operating power of the specified equipment, wherein the specified equipment is part or all of the equipment except the compressor in the air conditioning system.
As an alternative embodiment, the specifying device includes: outer fan, inner fan, and other loads; specifying the operating power of the device includes: the system comprises an outer fan power, an inner fan power and other load powers, wherein the outer fan power, the inner fan power and the other load powers are fixed values measured in advance.
As an alternative embodiment, the control unit comprises: the first judgment module is used for judging whether the power of the whole machine is higher than the limit power; and the adjusting module is used for adjusting the working frequency of the compressor under the condition that the power of the whole machine is higher than the limited power.
As an alternative embodiment, the adjusting module comprises: the second judgment module is used for judging whether the working frequency of the compressor is greater than the minimum working frequency of the compressor or not; the control module is used for controlling the compressor to stop under the condition that the working frequency of the compressor is the minimum working frequency of the compressor; and the frequency reducing module is used for reducing the working frequency of the compressor under the condition that the working frequency of the compressor is greater than the minimum working frequency of the compressor.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A control method of an air conditioning system, comprising:
the method comprises the steps of obtaining compressor power in an air conditioning system, wherein the compressor power is the current operation power of a compressor in the air conditioning system;
determining the overall power of the air conditioning system according to the compressor power;
controlling the working frequency of the compressor according to the power of the whole machine and the limited power, wherein the limited power is the maximum power which allows the air conditioning system to operate;
wherein, according to the complete machine power and the working frequency of limiting power control compressor include:
judging whether the power of the whole machine is higher than the limit power;
under the condition that the power of the whole machine is higher than the limit power, adjusting the working frequency of the compressor;
wherein adjusting the operating frequency of the compressor comprises:
judging whether the working frequency of the compressor is greater than the minimum working frequency of the compressor or not;
under the condition that the working frequency of the compressor is the minimum working frequency of the compressor, controlling the compressor to stop;
and reducing the working frequency of the compressor under the condition that the working frequency of the compressor is greater than the minimum working frequency of the compressor.
2. The method of claim 1, wherein obtaining compressor power in an air conditioning system comprises:
collecting compressor current, wherein the compressor current is direct current for powering the compressor;
a compressor power is determined based on the compressor current.
3. The method of claim 1, wherein determining the overall power of the air conditioning system based on the compressor power comprises:
and determining the power of the whole machine according to the power of the compressor and the operating power of specified equipment, wherein the specified equipment is part or all of the equipment except the compressor in the air conditioning system.
4. The method of claim 3,
the specifying device includes: outer fan, inner fan, and other loads;
specifying the operating power of the device includes: the system comprises an outer fan power, an inner fan power and other load powers, wherein the outer fan power, the inner fan power and the other load powers are fixed values measured in advance.
5. A control device of an air conditioning system, characterized by comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the compressor power in an air conditioning system, and the compressor power is the current operation power of a compressor in the air conditioning system;
the determining unit is used for determining the overall power of the air conditioning system according to the compressor power;
the control unit is used for controlling the working frequency of the compressor according to the power of the whole machine and the limited power, wherein the limited power is the maximum power allowing the air conditioning system to operate;
the control unit includes:
the first judging module is used for judging whether the power of the whole machine is higher than the limit power;
the adjusting module is used for adjusting the working frequency of the compressor under the condition that the power of the whole machine is higher than the limited power;
wherein the adjustment module comprises:
the second judgment module is used for judging whether the working frequency of the compressor is greater than the minimum working frequency of the compressor or not;
the control module is used for controlling the compressor to stop under the condition that the working frequency of the compressor is the minimum working frequency of the compressor;
the frequency reducing module is used for reducing the working frequency of the compressor under the condition that the working frequency of the compressor is greater than the minimum working frequency of the compressor.
6. The apparatus of claim 5, wherein the obtaining unit comprises:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring compressor current, and the compressor current is direct current for supplying power to the compressor;
a first determination module to determine a compressor power based on the compressor current.
7. A storage medium characterized by comprising a stored program, wherein the program executes the control method of an air conditioning system according to any one of claims 1 to 4.
8. A processor, characterized in that the processor is configured to run a program, wherein the program is executed to execute the control method of the air conditioning system according to any one of claims 1 to 4 when running.
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| CN109827286B (en) * | 2018-12-29 | 2020-05-22 | 珠海格力电器股份有限公司 | Method and device for preventing power device of unit from being damaged due to overheating and unit |
| CN110749025B (en) * | 2019-10-29 | 2020-10-02 | 珠海格力电器股份有限公司 | Method and device for determining overall power of air conditioner |
| CN110989394B (en) * | 2019-12-31 | 2021-07-20 | 海信集团有限公司 | Power control method and device for shared household appliances |
| CN111059689A (en) * | 2019-12-31 | 2020-04-24 | 海信集团有限公司 | Control method and device for sharing air conditioner power based on cloud platform |
| CN112212463B (en) * | 2020-10-13 | 2021-10-29 | 珠海格力电器股份有限公司 | Frequency control method of variable frequency air conditioner, computer device and computer readable storage medium |
| CN112710072B (en) * | 2020-12-29 | 2022-09-23 | 宁波奥克斯电气股份有限公司 | Outdoor unit temperature control method and device and air conditioner |
| CN113375302B (en) * | 2021-05-20 | 2022-12-23 | 青岛海尔空调器有限总公司 | Air conditioner voltage fluctuation control system and control method, electronic equipment and storage medium |
| CN113266931B (en) * | 2021-05-21 | 2023-05-02 | Tcl空调器(中山)有限公司 | Variable frequency control method and system of air conditioner and air conditioner |
| CN114216217B (en) * | 2021-12-02 | 2023-08-15 | 青岛海尔空调器有限总公司 | Method and device for adjusting power supply of air conditioner and air conditioner |
| CN115540219A (en) * | 2022-09-29 | 2022-12-30 | 珠海格力电器股份有限公司 | Air conditioner, power limiting control method thereof and storage medium |
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| CN107421064B (en) * | 2017-07-13 | 2020-10-09 | 广东美的制冷设备有限公司 | Control method and control device of air conditioner, system and storage medium |
| CN107477820B (en) * | 2017-07-12 | 2021-06-22 | 广东美的制冷设备有限公司 | Air conditioner control system, detection device, air conditioner and readable storage medium |
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