CN114216217B - Method and device for adjusting power supply of air conditioner and air conditioner - Google Patents
Method and device for adjusting power supply of air conditioner and air conditioner Download PDFInfo
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- CN114216217B CN114216217B CN202111462173.1A CN202111462173A CN114216217B CN 114216217 B CN114216217 B CN 114216217B CN 202111462173 A CN202111462173 A CN 202111462173A CN 114216217 B CN114216217 B CN 114216217B
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- air conditioner
- power
- compressor
- generator
- shunt
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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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- 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
Abstract
The application relates to the technical field of air conditioner power supply, and discloses a method for adjusting air conditioner power supply, which comprises the following steps: acquiring a power supply state of an air conditioner and a shunt electric appliance; under the condition that the air conditioner and the shunt electric appliance supply power for the generator, the operation frequency of the compressor of the air conditioner is obtained; controlling the air conditioner to operate or shut down in a starting state according to the magnitude relation between the operating frequency of the compressor and the preset minimum operating frequency; the shunt electric appliances refer to all electric appliances except an air conditioner in a power supply area of the generator. According to the application, the air conditioner can be controlled to be in a starting state to continue to operate or be shut down according to the magnitude relation between the operating frequency of the compressor and the preset minimum operating frequency, the electricity utilization compatibility between the air conditioner and the shunt electric appliance can be balanced, the operation stability of the air conditioner and the shunt electric appliance in a power supply area is maintained, and the energy consumption is reduced. The application also discloses a device for adjusting the power supply of the air conditioner and the air conditioner.
Description
Technical Field
The application relates to the technical field of air conditioner power supply, in particular to a method and a device for air conditioner power supply regulation and an air conditioner.
Background
The air conditioner is one of the necessary household appliances, and has very wide application range due to the characteristic of fast cooling and heating, the national electric power is underdeveloped in China and in Bay regions, the electric network is unstable and is often under-voltage or powered off, a user basically stands for a generator to perform self-power generation and supply for the electric appliance, but the capacity of the household generator is generally smaller, and generally only two and three kilowatts, so that the electric compatibility of the air conditioner and other household appliances needs to be considered when all household appliances are used simultaneously, and the operation of the air conditioner is adjusted in time.
In the related art, an adaptive control method for an air conditioner exists, under the condition of power supply through a generator, the running frequency of the air conditioner compressor is adjusted according to the frequency change rate corresponding to the current bus voltage relative change value by detecting the bus voltage and calculating the relative change value of the bus voltage in a set period, so that the air conditioner is better suitable for power supply running of the generator.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the operation frequency of the compressor is correspondingly adjusted based on the change of the bus voltage, so that the electricity utilization compatibility between the air conditioner and other electric appliances cannot be balanced, and when the bus voltage is changed greatly, the operation stability of the other electric appliances can be reduced and the stability of power supply can be reduced only by adjusting the operation frequency of the air conditioner compressor.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a method and a device for adjusting power supply of an air conditioner and the air conditioner, so as to improve the power utilization compatibility between the air conditioner and a shunt, improve the stability of power supply and reduce energy consumption.
In some embodiments, a method for air conditioning power conditioning includes:
acquiring a power supply state of an air conditioner and a shunt electric appliance;
under the condition that the air conditioner and the shunt electric appliance supply power for the generator, the operation frequency of the compressor of the air conditioner is obtained;
controlling the air conditioner to operate or shut down in a starting state according to the magnitude relation between the operating frequency of the compressor and the preset minimum operating frequency;
the shunt electric appliances refer to all electric appliances except an air conditioner in a power supply area of the generator.
In some embodiments, an apparatus for air conditioning power conditioning, comprises: a processor and a memory storing program instructions, the processor being configured to perform the above-described method for air conditioning power conditioning when the program instructions are executed.
In some embodiments, an air conditioner comprises the apparatus for air conditioner power supply adjustment of the above embodiments
The method and the device for adjusting the power supply of the air conditioner, and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
the power supply state of the air conditioner and the shunt electric appliance in the power supply area where the air conditioner is located can be obtained, under the condition that the electric appliance in the power supply area is powered by the generator, the air conditioner and the shunt electric appliance consume the energy output by the generator, the air conditioner is controlled to continue to operate or be powered off in the power on state according to the magnitude relation between the operating frequency of the compressor and the preset minimum operating frequency by obtaining the operating frequency of the compressor, the power utilization compatibility between the air conditioner and the shunt electric appliance can be balanced, the operating stability of the air conditioner and the shunt electric appliance in the power supply area is maintained, and the energy consumption is reduced.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic diagram of a power supply system provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a method for air conditioning power conditioning in accordance with an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another method for air conditioning power conditioning provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another method for air conditioning power conditioning provided by an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of another method for air conditioning power conditioning provided by an embodiment of the present disclosure;
fig. 6 is a schematic diagram of an apparatus for air conditioning power conditioning provided in an embodiment of the present disclosure.
Reference numerals:
100. a processor (processor); 101. a memory (memory); 102. a communication interface (Communication Interface); 103. a bus.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
In the embodiment of the disclosure, the intelligent home appliance refers to a home appliance formed after a microprocessor, a sensor technology and a network communication technology are introduced into the home appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent home appliance often depends on the application and processing of modern technologies such as the internet of things, the internet and an electronic chip, for example, the intelligent home appliance can realize remote control and management of a user on the intelligent home appliance by connecting the electronic appliance.
In the disclosed embodiment, the terminal device refers to an electronic device with a wireless connection function, and the terminal device can be in communication connection with the intelligent household electrical appliance through connecting with the internet, or can be in communication connection with the intelligent household electrical appliance through Bluetooth, wifi and other modes. In some embodiments, the terminal device is, for example, a mobile device, a computer, or an in-vehicle device built into a hover vehicle, etc., or any combination thereof. The mobile device may include, for example, a cell phone, smart home device, wearable device, smart mobile device, virtual reality device, etc., or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, etc.
Referring to fig. 1, in some embodiments, a power supply system includes: commercial power, a generator, an air conditioner and a shunt electric appliance. The utility power and the generator are electrically connected with the air conditioner and the shunt electric appliance, and can supply power to the air conditioner and the shunt electric appliance through the utility power or the generator.
According to the power supply system provided by the embodiment of the disclosure, the air conditioner and the shunt electric appliance can be selectively powered through the commercial power or the generator, and under the condition that the level of the commercial power is low or even zero, the generator starts to supply power to the air conditioner and the shunt electric appliance, so that the stability of the power supply system is maintained.
Optionally, the power supply system further includes: and a detection module. The detection module is distributed on the power supply circuit of the mains supply, the generator, the air conditioner and the shunt electric appliance, communication connection is established between the detection module and the processor, and the power supply state of the mains supply, the power generation voltage and the output current of the generator, the input voltage and the input current of the air conditioner and the input voltage and the input current of the shunt electric appliance can be detected in real time. Therefore, the power supply state, voltage and current of each module in the power supply system can be detected by the detection module, the detection result is sent to the processor, and the processor acquires the detection result, so that the power supply system is regulated and controlled, the stability of the power supply system is maintained, and the stability of power supply of the air conditioner is improved.
Optionally, detection modules are arranged on the bus of the mains supply and the bus of the generator. In this way, the voltage on the bus of the mains supply and the bus of the generator can be detected through the detection module, so that whether the mains supply and the generator execute power supply or not is judged.
In a specific embodiment, the utility power is set as c, the generator is set as b, the air conditioner is set as e, the shunt is set as d, and the detected output voltage of the utility power is recorded as U c The output current is denoted as I c The method comprises the steps of carrying out a first treatment on the surface of the The detected generator output voltage is noted as U b The output current is denoted as I b The method comprises the steps of carrying out a first treatment on the surface of the The detected input voltage of the air conditioner is recorded as U e The input current is denoted as I e The method comprises the steps of carrying out a first treatment on the surface of the The detected input voltage of the shunt is recorded as U d The input current is denoted as I d 。
Referring to fig. 2, in some embodiments, a method for air conditioning power conditioning includes:
s01, a processor acquires the power supply state of an air conditioner and a shunt electric appliance;
s02, under the condition that the air conditioner and the shunt are powered by the generator, the processor obtains the running frequency of the compressor of the air conditioner;
s03, controlling the air conditioner to operate or shut down in a starting state by the processor according to the magnitude relation between the operating frequency of the compressor and the preset minimum operating frequency;
the shunt electric appliances refer to all electric appliances except an air conditioner in a power supply area of the generator.
By adopting the method for adjusting the power supply of the air conditioner, which is provided by the embodiment of the application, the power supply states of the air conditioner and the shunt appliances in the power supply area where the air conditioner is located can be obtained, under the condition that the electric appliances in the power supply area are powered by the generator, the running frequency of the compressor of the air conditioner is obtained because the air conditioner and the shunt appliances consume the energy output by the generator, the air conditioner is controlled to continue to run or shut down in the starting state according to the magnitude relation between the running frequency of the compressor and the preset minimum running frequency, the power utilization compatibility between the air conditioner and the shunt appliances can be balanced, the running stability of the air conditioner and the shunt appliances in the power supply area is maintained, and the energy consumption is reduced.
It is understood that the power supply area refers to an area where generator bus bars communicate, for example, in a residential area of a user, where the generator bus bars communicate with all appliances in the residential area, and power supply can be performed to all appliances in the residential area by the generator.
Optionally, the processor obtains a power supply state of the air conditioner and the shunt, including: the processor obtains an energized state of a bus of the generator. Therefore, the processor determines whether the air conditioner and the shunt electric appliance are in the power supply state of the generator or not by acquiring the power-on state of the generator bus, and the accuracy of determining the power supply state of the air conditioner and the shunt electric appliance is improved.
Alternatively, in the case of an air conditioner and a shunt supplying power to a generator, it means: in the case where the generator bus bar is in an energized state. In this way, when the bus of the generator is in the energized state, it can be determined that the air conditioner and the shunt are being supplied with power by the generator at this time.
Alternatively, in the case where the air conditioner and the shunt are powered by the utility power, and steps S02 and S03 are stopped.
In a specific embodiment, the preset minimum operation frequency may be zero-limit operation frequency of the shutdown of the compressor, or may be experimental data obtained according to the electrical compatibility between the air conditioner and the shunt, and when the operation frequency of the compressor is smaller than the minimum operation frequency, the energy consumption of the air conditioner is increased, and the normal use of the shunt is affected, so that the shutdown of the air conditioner needs to be controlled.
Referring to fig. 3, in some embodiments, a method for air conditioning power conditioning includes:
s01, a processor acquires the power supply state of an air conditioner and a shunt electric appliance;
s02, under the condition that the air conditioner and the shunt are powered by the generator, the processor obtains the running frequency of the compressor of the air conditioner;
s031, when the operation frequency of the compressor is greater than or equal to the minimum operation frequency, the processor controls the air conditioner to operate in a starting state;
s032, under the condition that the operation frequency of the compressor is smaller than the minimum operation frequency, the processor controls the air conditioner to be shut down.
By adopting the method for adjusting the power supply of the air conditioner, when the air conditioner and the shunt electric appliance are powered by the generator, the running frequency of the compressor is obtained, and under the condition that the running frequency of the compressor is larger than or equal to the minimum running frequency, the running influence of the generator electric energy consumed by the running of the shunt electric appliance on the compressor is smaller, and the generator can supply the electric energy required by the running of the air conditioner, so that the air conditioner is controlled by the processor to continue to run in a starting state, and under the condition that the running frequency of the compressor is smaller than the minimum running frequency, the running influence of the generator electric energy consumed by the running of the shunt electric appliance on the running of the compressor is larger, and the electric energy consumed by the running of the generator to the running of the air conditioner can not meet the normal running of the compressor.
Optionally, when the operation frequency of the compressor is greater than or equal to the minimum operation frequency, the processor controls the air conditioner to be in a start-up state for operation, and then the method further comprises: the processor obtains the output power of the generator; the processor acquires the input power of an air conditioner and the input power of a shunt appliance; the processor determines a difference between the output power of the generator and the input power of the shunt; the processor controls the operating frequency of the compressor according to the magnitude relation between the difference value and the input power of the air conditioner. Therefore, after the air conditioner is in the starting state and continuously operates, the power is supplied to the air conditioner and the shunt electric appliance through the generator, the difference value between the output power of the generator and the input power of the shunt electric appliance is determined by acquiring the output power of the generator, the input power of the shunt electric appliance and the input power of the air conditioner, the operating frequency of the compressor of the air conditioner is regulated according to the magnitude relation between the difference value and the input power of the air conditioner, the operating state of the air conditioner can be regulated and controlled more reasonably according to the power consumption of all electric appliances in a power supply area, the operating stability of the air conditioner is improved, and the energy consumption is reduced.
Optionally, a siteThe processor obtains the output power of the generator, including: the processor acquires the power generation voltage U of the generator b Output current I b The method comprises the steps of carrying out a first treatment on the surface of the The processor determines the generation voltage U of the generator b And output current I b Product U of (2) b *I b As the output power of the generator. Thus, the processor obtains the generated voltage U of the generator b Output current I b By generating a voltage U b Output current I b The product of the output power of the generator is determined, the accuracy of the obtained output power of the generator is improved, and the process of obtaining the output power of the generator is simplified.
Optionally, the processor obtains an input power of the air conditioner and an input power of the shunt, including: the processor acquires the input voltage U of the air conditioner e Input current I e Input voltage U of shunt electric appliance d Input current I d The method comprises the steps of carrying out a first treatment on the surface of the The processor determines the input voltage U of the air conditioner e And input current I e Product U of (2) e *I e As the input power of the air conditioner; the processor determines the input voltage U of the shunt d And input current I d Product U of (2) d *I d As input power to the shunt. Thus, the processor obtains the input voltage U of the air conditioner e Input current I e Input voltage U of shunt electric appliance d Input current I d By determining U e *I e To obtain the input power of the air conditioner by determining U d *I d The input power of the shunt electric appliance is obtained, so that the accuracy of obtaining the input power of the air conditioner and the shunt electric appliance is improved, and the obtaining process is simplified.
Optionally, the processor determines a difference between the output power of the generator and the input power of the shunt, comprising: the processor determines U b *I b -U d *I d And U is set to b *I b -U d *I d As the difference between the output power of the generator and the input power of the shunt. Thus, since the generator performs power supply to the air conditioner and the shunt appliance, by determining U b *I b -U d *I d The value of (2) is used as the difference between the output power of the generator and the input power of the shunt, the residual power after the output power of the generator is subtracted from the input power of the shunt can be better reflected, the size relation between the residual power and the current input power of the air conditioner is judged, and the operation of the air conditioner is better regulated.
It will be appreciated that the generator performs power supply to all appliances in the power supply area, and the shunt appliance is all appliances in the power supply area of the generator except for the air conditioner, whether the generator and all appliances in the power supply area are in a parallel circuit or a series circuit, the input voltage U of the shunt appliance is obtained by the processor d The total input voltage of all electric appliances except the air conditioner in the power supply area is obtained by the input current I of the shunt electric appliance obtained by the processor d The total input current of all electric appliances except the air conditioner in the power supply area is obtained.
Optionally, the processor controls the operation frequency of the compressor according to the magnitude relation between the difference value and the input power of the air conditioner, including: the processor controls the compressor to operate at a set frequency under the condition that the difference value is greater than or equal to the input power of the air conditioner; and under the condition that the difference value is smaller than the input power of the air conditioner, the processor controls the operation frequency of the compressor to gradually decrease until the operation frequency of the compressor is reduced to the minimum frequency. Thus, under the condition that the difference value is greater than or equal to the input power of the air conditioner, the output power of the generator is consumed by the input power of the shunt, and meanwhile, the consumption of the current input power of the air conditioner can be met, so that the processor controls the compressor of the air conditioner to operate at a set frequency, and the air conditioner is maintained to operate in a stable state; under the condition that the difference value is smaller than the input power of the air conditioner, the output power of the generator is insufficient to maintain the current consumption of the input power of the air conditioner while being consumed by the input power of the shunt electric appliance at the moment, so that the operation frequency of the compressor needs to be controlled to be reduced in order to maintain the normal operation of the shunt electric appliance and the air conditioner, the power consumption of the air conditioner is reduced, the influence of the power consumption of the air conditioner on the shunt electric appliance is reduced, and the power supply stability is improved.
In a specific embodiment, the difference is largeThe case of equal or greater input power to the air conditioner means: in U b *I b -U d *I d ≥U e *I e Is the case for (a). The processor determining the output power U of the generator b *I b Subtracting the input power U of the shunt d *I d The difference of the two is greater than or equal to the input power U of the air conditioner e *I e The method can more accurately determine whether the output power of the generator can meet the current power consumption of the air conditioner after being distributed by the shunt electric appliance, and better control the operation of the air conditioner.
Optionally, in the case that the difference is smaller than the input power of the air conditioner, the processor controls the operation frequency of the compressor to gradually decrease, including: the processor controls the compressor operating frequency to gradually decrease as follows:
f＝f*[(U b *I b -U d *I d )/(U e *I e )]
wherein f is the real-time operating frequency of the compressor, U b For generating voltage of generator, I b U is the output current of the generator d To shunt the input voltage of the electric appliance, I d To shunt the input current of the electric appliance, U e Is the input voltage of the air conditioner, I e Is the input current of the air conditioner. Therefore, in order to maintain the normal operation of the shunt and the air conditioner, the operation frequency of the compressor needs to be controlled to be reduced, the real-time operation frequency of the compressor is multiplied by the ratio of the difference value to the input power of the air conditioner to gradually perform frequency reduction processing on the compressor, the frequency reduction of the compressor is related to the difference value and the input power of the air conditioner, the frequency reduction stability of the compressor is improved, the energy consumption is reduced, and the heat exchange performance of the air conditioner is kept stable.
In a specific embodiment, in the case that the difference is smaller than the input power of the air conditioner, it means that: in U b *I b -U d *I d ＜U e *I e Is the case for (a). The processor determining the output power U of the generator b *I b Subtracting the input power U of the shunt d *I d The difference value of (2) is smaller than the input power U of the air conditioner e *I e The method can more accurately determine whether the output power of the generator can meet the current power consumption of the air conditioner after being distributed by the shunt electric appliance, and better control the operation of the air conditioner.
Optionally, in the case that the difference is smaller than the input power of the air conditioner, the processor controls the operation frequency of the compressor to gradually decrease, and further includes: the processor controls the rotation speed of the outdoor fan to be gradually increased until the rotation speed of the outdoor fan is increased to the maximum rotation speed, and controls the rotation speed of the indoor fan to be gradually reduced until the rotation speed of the indoor fan is reduced to the minimum rotation speed. Therefore, when the difference value is smaller than the input power of the air conditioner, the operation frequency of the compressor needs to be controlled to be reduced, the power consumption of the air conditioner is reduced, but when the operation frequency of the compressor is reduced, the heat exchange capacity of the indoor heat exchanger is reduced, and at the moment, if the indoor fan keeps the original rotation speed to operate, the air supply temperature is changed rapidly, and the air supply comfort is affected, so that the rotation speed of the indoor fan is controlled to be reduced gradually, the heat exchange time between the air outlet air flow and the indoor heat exchanger is prolonged, the air outlet quantity is reduced, and the air supply comfort is improved when the compressor is reduced; and when the running frequency of the compressor is gradually reduced, because the hardness of power consumption generated by the frequency reduction of the compressor is greater than the influence of the speed increase of the outdoor fan, the heat exchange effect caused by the frequency reduction of the compressor is simulated to be improved by improving the rotating speed of the outdoor fan, and the rotating speed of the outdoor fan is controlled to be gradually increased at the moment, so that the heat exchange between the outdoor heat exchanger and the outdoor environment is accelerated, the heat exchange capacity of the indoor heat exchanger is improved, and the air supply comfort is further improved.
Optionally, in the case that the difference is smaller than the input power of the air conditioner, the processor controls the rotation speed of the outdoor fan to gradually increase, including: the processor controls the rotation speed of the outdoor fan to gradually rise according to the following formula:
R out ＝R out *[(U e *I e )/(U b *I b -U d *I d )]
wherein R is out Is the real-time rotating speed of the outdoor fan. In this way, when the difference between the output power of the generator and the input power of the shunt is smaller than the input power of the air conditioner, the operation frequency of the compressor needs to be controlled to be reduced, and as the operation frequency of the compressor is gradually reduced, the hardness of the generated power consumption is larger than the effect of the rising speed of the outdoor fan, so that the heat exchange effect caused by the reduction of the frequency of the compressor is reduced by the aid of the increase of the rotation speed of the outdoor fan, the rotation speed of the outdoor fan is gradually increased according to the ratio of the difference between the input power of the air conditioner and the output power of the generator to the input power of the shunt, the rotation speed of the outdoor fan is increased more stably, and the heat exchange effect caused by the reduction of the compressor is better compensated.
Optionally, in the case that the difference is smaller than the input power of the air conditioner, the processor controls the rotation speed of the outdoor fan of the air conditioner to gradually increase, and further includes: the processor controls the target discharge temperature of the compressor to make a correction. Therefore, under the condition that the difference between the output power of the generator and the input power of the shunt is smaller than the input power of the air conditioner, the operation frequency of the compressor needs to be subjected to frequency reduction control, and after the compressor is subjected to frequency reduction, the exhaust temperature of the compressor needs to be changed, so that the target exhaust temperature of the compressor needs to be corrected, the target exhaust temperature of the compressor can be better adapted to the current operation frequency of the compressor, and the refrigerating and heating effects of the air conditioner are ensured.
Optionally, the processor controls the target discharge temperature of the compressor to be corrected, including: the processor controls the target discharge temperature of the compressor at T d ＝a 1 *f+b 1 +c 1 And corrects the target exhaust gas temperature based on the following formula:
T d ＝a 1 *a 2 *f+b 1 +c 1
wherein T is d For the target exhaust temperature, a 1 B is the compressor operating frequency coefficient 1 Is constant, c 1 A is an outdoor environment temperature correction constant, a 2 ＝[(U e *I e )/(U b *I b -U d *I d )]. Thus, since the target discharge temperature of the compressor is related to the operation frequency of the compressor and the outside environment temperature, the target discharge temperature is controlled at T after the operation frequency of the compressor is reduced d ＝a 1 *f+b 1 +c 1 On the basis of the above formula, the target exhaust temperature is better adapted to the frequency work of the current compressor, the refrigerating and heating effects of the air conditioner are ensured, and the target exhaust temperature is prevented from exceeding a critical point.
Optionally, in the case that the difference is smaller than the input power of the air conditioner, the processor controls the rotation speed of the indoor fan to gradually decrease, including: the rotating speed of the indoor fan controlled by the processor is gradually reduced according to the following formula:
R in ＝R in *[(U b *I b -U d *I d )/(U e *I e )]
wherein R is in Is the real-time rotating speed of the indoor fan. Therefore, when the difference between the output power of the generator and the input power of the shunt electric appliance is smaller than the input power of the air conditioner, the running frequency of the compressor needs to be controlled to be reduced, the power consumption of the air conditioner is reduced, but when the running frequency of the compressor is reduced, the heat exchange capacity of the indoor heat exchanger is reduced, and at the moment, if the indoor fan keeps the original rotating speed to run, the air supply temperature is changed suddenly, the air supply comfort is affected, so that the rotating speed of the indoor fan is regulated to be reduced gradually through the ratio between the difference between the output power of the generator and the input power of the shunt electric appliance and the input power of the air conditioner, the speed reduction of the indoor fan is controlled to be better related to the difference between the output power of the generator and the input power of the shunt electric appliance and the input power of the air conditioner, the speed reduction control of the indoor fan is avoided, the speed reduction of the indoor fan is slow, and the air supply air flow with larger temperature change is blown out greatly, and the air supply comfort is improved.
Optionally, when the operation frequency of the compressor is smaller than the minimum operation frequency, the processor controls the air conditioner to be turned off, and further includes: the processor obtains the output power of the generator and the input power of the shunt; the processor acquires the minimum input power of the air conditioner at the minimum operating frequency; the processor determines the magnitude relation between the difference value between the output power of the generator and the input power of the shunt electric appliance and the minimum input power of the air conditioner; and under the condition that the difference value is greater than or equal to the minimum input power of the air conditioner, the processor controls the air conditioner to start. Therefore, after the processor controls the air conditioner to be shut down, the minimum input power of the air conditioner under the minimum operating frequency, namely the minimum input power required by the air conditioner at the critical point of the shut down of the air conditioner is obtained, because the operating frequency of the compressor is related to the input power of the air conditioner, the operating frequency of the compressor is larger when the input power is larger, so when the processor determines that the difference value between the output power of the generator and the input power of the shunt electric appliance is larger than or equal to the minimum input power of the air conditioner, the generator supplies power to the air conditioner at the moment so as to sufficiently support the compressor to maintain the operation at or above the minimum operating frequency and have less influence on the operation of the shunt electric appliance, the air conditioner is controlled to be started up for refrigerating or heating, the environment temperature is regulated, and the user experience is improved.
Optionally, when the difference is greater than or equal to the minimum input power of the air conditioner, the processor controls the operation frequency of the compressor according to the magnitude relation between the difference and the input power of the air conditioner after the air conditioner is started.
Referring to fig. 4, in some alternative embodiments, a method for air conditioning power conditioning includes:
s01, a processor acquires the power supply state of an air conditioner and a shunt electric appliance;
s02, under the condition that the air conditioner and the shunt are powered by the generator, the processor obtains the running frequency of the compressor of the air conditioner;
s03, controlling the air conditioner to operate or shut down in a starting state by the processor according to the magnitude relation between the operating frequency of the compressor and the preset minimum operating frequency;
the shunt electric appliances refer to all electric appliances except an air conditioner in a power supply area of the generator;
s04, the processor acquires the power supply state of the commercial power;
and S05, under the condition that the commercial power is in a current power-on state, the processor controls the generator to be turned off, and the commercial power is started to supply power to the air conditioner and the shunt.
By adopting the method for adjusting the power supply of the air conditioner, which is provided by the embodiment of the disclosure, in the process of supplying power through the generator, the processor obtains the power supply state of the commercial power, and under the condition that the commercial power is in the current power-on state, the generator is controlled to be closed, the commercial power is started to supply power to the air conditioner and the shunt, the energy consumption generated by the operation of the generator is reduced, and the stability of the power supply is further improved.
It is understood that the processor obtains the power supply state of the mains supply, including: the processor acquires the power-on state of the bus of the mains supply, and determines that the mains supply is currently in the power-on state when the bus of the mains supply is in the power-on state.
Optionally, enabling the mains to power the air conditioner and the shunt, including: and controlling the air conditioner and the shunt to operate under the set working condition. Therefore, when the electric power is supplied through the mains supply, the voltage is stable, so that the air conditioner and the shunt are controlled to run under the set working condition, and the user experience is improved.
Referring to fig. 5, in some alternative embodiments, a method for air conditioning power conditioning includes:
s01, a processor acquires the power supply state of an air conditioner and a shunt electric appliance;
s02, under the condition that the air conditioner and the shunt are powered by the generator, the processor obtains the running frequency of the compressor of the air conditioner;
s03, controlling the air conditioner to operate or shut down in a starting state by the processor according to the magnitude relation between the operating frequency of the compressor and the preset minimum operating frequency;
the shunt electric appliances refer to all electric appliances except an air conditioner in a power supply area of the generator;
s04, the processor acquires the power supply state of the commercial power;
s05, under the condition that the commercial power is in a current power-on state, the processor controls the generator to be turned off, and the commercial power is started to supply power to the air conditioner and the shunt electric appliance;
s06, the processor acquires the running state of the air conditioner, and controls the air conditioner to start up under the condition that the air conditioner is in a shutdown state.
By adopting the method for adjusting the power supply of the air conditioner, which is provided by the embodiment of the disclosure, when the commercial power is in the current power on condition, the generator is turned off, the commercial power is started to supply power to the air conditioner and the shunt, the processor obtains the running state of the air conditioner, and when the air conditioner is in the power off condition, the air conditioner is controlled to be started for refrigerating and heating, so that the experience of a user is improved.
As shown in connection with fig. 6, an embodiment of the present disclosure provides an apparatus for air conditioning power supply conditioning, including a processor (processor) 100 and a memory (memory) 101. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via the bus 103. The communication interface 102 may be used for information transfer. The processor 100 may invoke logic instructions in the memory 101 to perform the method for air conditioning power conditioning in the above-described embodiments.
Further, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 101 is a computer readable storage medium that can be used to store a software program, a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by running program instructions/modules stored in the memory 101, i.e., implements the method for air conditioning power conditioning in the above-described embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created according to the use of the terminal device, etc. Further, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
In some embodiments, an air conditioner comprises the device for air conditioner power supply adjustment.
Embodiments of the present disclosure provide a storage medium storing computer-executable instructions configured to perform the above-described method for air-conditioning power supply regulation.
The storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (6)
1. A method for air conditioning power conditioning comprising:
acquiring the power supply state of the air conditioner and the shunt electric appliance;
acquiring the operating frequency of a compressor of the air conditioner under the condition that the air conditioner and the shunt are powered by a generator;
controlling the air conditioner to operate or shut down in a starting state according to the magnitude relation between the operating frequency of the compressor and the preset minimum operating frequency;
the shunt electric appliances refer to all electric appliances except the air conditioner in a power supply area of the generator;
controlling the air conditioner to operate or shut down in a starting state according to the magnitude relation between the operating frequency of the compressor and a preset minimum operating frequency, comprising: controlling the air conditioner to operate in a starting state under the condition that the operating frequency of the compressor is greater than or equal to the minimum operating frequency; controlling the air conditioner to be shut down under the condition that the operation frequency of the compressor is smaller than the minimum operation frequency;
when the operation frequency of the compressor is greater than or equal to the minimum operation frequency, controlling the air conditioner to be in a starting state for operation further comprises: obtaining the output power of the generator; acquiring the input power of the air conditioner and the input power of the shunt electric appliance; determining a difference between the output power of the generator and the input power of the shunt; controlling the operation frequency of the compressor according to the magnitude relation between the difference value and the input power of the air conditioner;
controlling the operation frequency of the compressor according to the magnitude relation between the difference value and the input power of the air conditioner, comprising: controlling the compressor to operate at a set frequency under the condition that the difference value is greater than or equal to the input power of the air conditioner; controlling the operation frequency of the compressor to gradually decrease under the condition that the difference value is smaller than the input power of the air conditioner until the operation frequency of the compressor is reduced to the minimum frequency;
and controlling the operation frequency of the compressor to gradually decrease under the condition that the difference value is smaller than the input power of the air conditioner, comprising:
controlling the compressor operating frequency to gradually decrease according to the following formula:
f＝f*[(U b *I b -U d *I d )/(U e *I e )]
wherein f is the real-time operating frequency of the compressor, U b For the power generation voltage of the generator, I b For the output current of the generator, U d I is the input voltage of the shunt d U is the input current of the shunt electric appliance e I is the input voltage of the air conditioner e Is the input current of the air conditioner.
2. The method of claim 1, wherein controlling the air conditioner after shutdown in the case where the operating frequency of the compressor is less than the minimum operating frequency, further comprises:
obtaining the output power of the generator and the input power of the shunt;
acquiring the minimum input power of the air conditioner at the minimum operating frequency;
determining a magnitude relation between a difference value between the output power of the generator and the input power of the shunt electric appliance and the minimum input power of the air conditioner;
and controlling the air conditioner to start under the condition that the difference value is larger than or equal to the minimum input power of the air conditioner.
3. The method according to any one of claims 1 to 2, wherein controlling the air conditioner to be operated in a start-up state or after being shut down according to a magnitude relation between the operation frequency of the compressor and a preset minimum operation frequency, further comprises:
acquiring a power supply state of commercial power;
and under the condition that the commercial power is in a current power-on state, controlling the generator to be turned off, and starting the commercial power to supply power to the air conditioner and the shunt.
4. A method according to claim 3, wherein controlling the generator to be turned off when the utility power is currently in an energized state, and enabling the utility power to supply power to the air conditioner and the shunt device, further comprises:
acquiring the running state of the air conditioner, and controlling the air conditioner to start under the condition that the air conditioner is in a shutdown state.
5. An apparatus for air conditioning power conditioning comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for air conditioning power conditioning of any of claims 1 to 4 when the program instructions are run.
6. An air conditioner comprising the device for air conditioner power supply adjustment according to claim 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111462173.1A CN114216217B (en) | 2021-12-02 | 2021-12-02 | Method and device for adjusting power supply of air conditioner and air conditioner |
| PCT/CN2022/102688 WO2023098065A1 (en) | 2021-12-02 | 2022-06-30 | Power supply regulation method and apparatus for air conditioner, and air conditioner |
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| CN202111462173.1A CN114216217B (en) | 2021-12-02 | 2021-12-02 | Method and device for adjusting power supply of air conditioner and air conditioner |
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| CN114216217A CN114216217A (en) | 2022-03-22 |
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| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318494A (en) * | 2014-06-12 | 2016-02-10 | Lg电子株式会社 | Air conditioner and method for controlling same |
| CN106200394A (en) * | 2016-07-29 | 2016-12-07 | 海尔优家智能科技（北京）有限公司 | The control method of intelligent appliance and device |
| CN107388481A (en) * | 2017-06-30 | 2017-11-24 | 广东美的制冷设备有限公司 | A kind of air conditioner, the control method of air conditioner and computer installation |
| WO2019128069A1 (en) * | 2017-12-26 | 2019-07-04 | 青岛海尔空调器有限总公司 | Adaptive generator and air conditioner control method and device |
| CN113266931A (en) * | 2021-05-21 | 2021-08-17 | Tcl空调器(中山)有限公司 | Variable frequency control method and system of air conditioner and air conditioner |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101571721B1 (en) * | 2014-06-12 | 2015-11-25 | 엘지전자 주식회사 | Air-conditioner and method |
| CN105910233B (en) * | 2016-04-29 | 2019-01-29 | 广东美的制冷设备有限公司 | Air-conditioner control method and device |
| CN107917503B (en) * | 2017-11-13 | 2020-06-23 | 广东美的制冷设备有限公司 | Solar air conditioner control method and solar air conditioner |
| CN108592340B (en) * | 2018-04-23 | 2020-10-20 | 珠海格力电器股份有限公司 | Control method and device of air conditioning system, storage medium and processor |
| CN109539496B (en) * | 2018-10-19 | 2021-07-23 | 重庆海尔空调器有限公司 | Air conditioner self-adaptive control method and air conditioner |
| CN111391607B (en) * | 2020-03-25 | 2024-02-09 | 美的集团股份有限公司 | Driving control method and device, air conditioner, vehicle and storage medium |
| CN113375321B (en) * | 2021-05-18 | 2022-10-28 | 青岛海尔空调器有限总公司 | Operation control method and system of air conditioner compressor and storage medium |
| CN114216216B (en) * | 2021-12-02 | 2023-08-22 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner operation |
| 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 |
-
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- 2021-12-02 CN CN202111462173.1A patent/CN114216217B/en active Active
-
2022
- 2022-06-30 WO PCT/CN2022/102688 patent/WO2023098065A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318494A (en) * | 2014-06-12 | 2016-02-10 | Lg电子株式会社 | Air conditioner and method for controlling same |
| CN106200394A (en) * | 2016-07-29 | 2016-12-07 | 海尔优家智能科技（北京）有限公司 | The control method of intelligent appliance and device |
| CN107388481A (en) * | 2017-06-30 | 2017-11-24 | 广东美的制冷设备有限公司 | A kind of air conditioner, the control method of air conditioner and computer installation |
| WO2019128069A1 (en) * | 2017-12-26 | 2019-07-04 | 青岛海尔空调器有限总公司 | Adaptive generator and air conditioner control method and device |
| CN113266931A (en) * | 2021-05-21 | 2021-08-17 | Tcl空调器(中山)有限公司 | Variable frequency control method and system of air conditioner and air conditioner |
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| CN114216217A (en) | 2022-03-22 |
| WO2023098065A1 (en) | 2023-06-08 |
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