CN106969413B - Household air conditioner and power consumption control method and control device thereof - Google Patents
Household air conditioner and power consumption control method and control device thereof Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
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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
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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
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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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
- F24F11/47—Responding to energy costs
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
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Abstract
The invention discloses a method for controlling electric quantity for a household air conditioner, which comprises the following steps: acquiring control power consumption of an Nth time period within the preset air conditioner running time, wherein N is a positive integer and is more than or equal to 1 and less than M, and M is the time period number within the preset air conditioner running time; calculating an actual power consumption amount of the air conditioner at the nth period after the nth period is finished; and when the actual electricity consumption in the Nth period is larger than the control electricity consumption in the Nth period, controlling the frequency of a compressor of the air conditioner according to the running power of the air conditioner in the Nth period. The electric quantity control method for the household air conditioner can realize the expected control of the electric quantity, is more energy-saving and economical, and is more favorable for the distribution of users to expenses. The invention also discloses a household air conditioner and an electric quantity control device for the household air conditioner.
Description
Technical Field
The invention belongs to the technical field of electric appliance manufacturing, and particularly relates to an electric quantity control method for a household air conditioner, an electric quantity control device for the household air conditioner and the household air conditioner.
Background
In consideration of energy saving and economy, users have stronger and stronger demand for anticipating distribution of power consumption of electric appliances, for example, for air conditioners with large power consumption in households, users want to customize the power consumption of the air conditioners so as to distribute expenses more reasonably, and detailed technical solutions are not available in the related art.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the present invention needs to provide a method for controlling electric quantity for a household air conditioner, which can control the electric quantity used by the household air conditioner.
The invention further provides a household air conditioner and the electric quantity control device for the household air conditioner.
In order to solve the above problem, an aspect of the present invention provides a method for controlling an amount of electric power for a home air conditioner, including: acquiring control power consumption of an Nth time period within preset air conditioner operation time, wherein N is a positive integer and is more than or equal to 1 and less than M, and M is the time period number within the preset air conditioner operation time; calculating an actual power consumption amount of the air conditioner for the nth period after the nth period is finished; and when the actual electricity consumption in the Nth time interval is greater than the control electricity consumption in the Nth time interval, controlling the frequency of a compressor of the air conditioner according to the running power of the air conditioner in the Nth time interval.
According to the household air conditioner electricity consumption control method, the preset air conditioner operation time is divided into time intervals, the electricity consumption is distributed and controlled in each time interval, when the actual electricity consumption in a certain time interval is larger than the electricity consumption, the frequency of the compressor of the air conditioner is adjusted, the electricity consumption in the next time interval is further adjusted, the fact that the electricity consumption is in the expected electricity consumption in the preset air conditioner operation time is guaranteed, the expected control of the electricity consumption for air conditioner is achieved, and the method is economical and energy-saving.
In some embodiments of the present invention, controlling the frequency of the compressor of the air conditioner according to the operation power of the air conditioner during the nth period comprises: calculating the running power of the air conditioner according to the actual electricity consumption in the Nth period; and determining a power interval to which the operating power of the air conditioner belongs, and controlling the frequency of the compressor according to the frequency limiting mode of the power interval.
In some embodiments of the present invention, determining a power interval to which the operating power of the air conditioner belongs, and controlling the frequency of the compressor according to a frequency-limited manner of the power interval includes:
when the operating power of the air conditioner is less than k1·fNWhile controlling the frequency of the compressor to be constant, wherein k1Is a first frequency limiting interval parameter, fNControl power for the nth period; or,
when the operating power of the air conditioner is more than k1·fNAnd is less than k2·fNControlling the frequency of the compressor to maintain a maximum limit value of the operating frequency for a previous period of time, wherein k2Is a second frequency-limited interval parameter, k2>k1(ii) a Or,
when the air conditioner is usedIs greater than k2·fNAnd controlling the compressor to reduce the frequency once every preset time until the minimum allowable operation frequency of the compressor.
In some embodiments of the present invention, the maximum operating frequency of the compressor during the nth period is defined as:
wherein f isrFor the current operating frequency of the compressor, fOAnd for the control frequency of the compressor, FreMax is the maximum operation frequency limit value of the compressor in the Nth period, and is a frequency limiting coefficient, and FreMin is the minimum allowable operation frequency of the compressor.
In some embodiments of the present invention, obtaining the control power consumption for the nth period of time within the preset air conditioner operation time comprises:
acquiring the distribution power consumption proportion of the Nth time period; and calculating the control electricity consumption in the N period according to the distribution electricity consumption proportion in the N-1 period, the distribution electricity consumption proportion in the N period, the expected electricity consumption set by a user and the actual electricity consumption in the N-1 period.
In some embodiments of the invention, the allocated power usage proportion is calculated by an analysis device based on the preset air conditioner operating time and the expected power usage.
In some embodiments of the present invention, the home air conditioner includes one of a split-type air conditioner and a multi-split air conditioner.
In some embodiments of the present invention, for the multi-split air conditioner, the power consumption control method further includes: and acquiring the actual electricity consumption component of each indoor unit in the Nth time period, and summarizing the actual electricity consumption component of each indoor unit to obtain the actual electricity consumption of the air conditioner in the Nth time period.
In order to solve the above problems, another aspect of the present invention provides a power control apparatus for a home air conditioner, comprising: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring control electricity consumption of an Nth time period in the preset air conditioner operation time, N is a positive integer and is more than or equal to 1 and less than M, and M is the time period number in the preset air conditioner operation time; a calculating module for calculating an actual power consumption amount of the air conditioner in the nth period after the nth period is finished; and the control module is used for controlling the frequency of a compressor of the air conditioner according to the running power of the air conditioner in the Nth time period when the actual power consumption in the Nth time period is greater than the control power consumption in the Nth time period.
According to the household air conditioner electricity consumption control device provided by the embodiment of the invention, the preset air conditioner running time is divided into time intervals, the electricity consumption is distributed and controlled in each time interval, when the actual electricity consumption in a certain time interval is greater than the control electricity consumption, the frequency of the compressor of the air conditioner is adjusted, the electricity consumption in the next time interval is further adjusted, the air conditioner electricity consumption is ensured to be in the expected electricity consumption range in the preset air conditioner running time, the expected control of the air conditioner electricity consumption is achieved, and the household air conditioner electricity consumption control device is more economical and energy-saving.
In some embodiments of the invention, the control module comprises: the power calculation unit is used for calculating the running power of the air conditioner according to the actual electricity consumption in the Nth period; and the control unit is used for determining a power interval to which the running power of the air conditioner belongs and controlling the frequency of the compressor according to the frequency limiting mode of the power interval.
In some embodiments of the invention, the control unit,
when the operating power of the air conditioner is less than k1·fNWhile controlling the frequency of the compressor to be constant, wherein k1Is a first frequency limiting interval parameter, fNControl power for the nth period; or,
when the operating power of the air conditioner is more than k1·fNAnd is less than k2·fNControlling the frequency of the compressor to maintain a maximum limit value of the operating frequency for a previous period of time, wherein k2Is a second frequency-limited interval parameter, k2>k1(ii) a Or,
when the running power of the air conditioner is more than k2·fNWhile controlling the compressorAnd reducing the frequency once every preset time until the minimum allowable operation frequency of the compressor is reached.
In some embodiments of the present invention, the control unit defines the maximum operating frequency of the compressor during the nth period as:
wherein f isrFor the current operating frequency of the compressor, fOAnd for the control frequency of the compressor, FreMax is the maximum operation frequency limit value of the compressor in the Mth period, and is a frequency limiting coefficient, and FreMin is the minimum operation frequency of the compressor.
In some embodiments of the invention, the obtaining module comprises: the obtaining unit is used for obtaining the distribution power consumption proportion of the Nth time period; and the electric quantity calculating unit is used for calculating the control electric quantity in the N time period according to the distribution electric quantity proportion in the N-1 time period, the actual electric quantity in the N-1 time period, the distribution electric quantity proportion in the N time period and the expected electric quantity set by a user.
In some embodiments of the invention, the allocated power usage proportion is calculated by an analysis device based on the preset air conditioner operating time and the expected power usage.
In some embodiments of the present invention, the home air conditioner includes one of a split-type air conditioner and a multi-split air conditioner.
In some embodiments of the present invention, for the multi-split air conditioner, the power consumption amount control apparatus further includes:
and the summarizing module is used for acquiring the actual electricity consumption component of each indoor unit in the Nth time period and summarizing the actual electricity consumption component of each indoor unit to obtain the actual electricity consumption of the air conditioner in the Nth time period.
Based on the electricity consumption control device of the above aspect, the invention further provides a household air conditioner comprising the electricity consumption control device.
The household air conditioner of the embodiment of the invention adopts the electricity consumption control device in the aspect, can realize the expected control of electricity consumption, achieves the aim of energy conservation and economy, and is more beneficial to the distribution of users to expenses.
Drawings
Fig. 1 is a flowchart of a method for controlling an amount of power for a home air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a set interval for adjusting the frequency of a compressor according to one embodiment of the present invention;
fig. 3 is a block diagram of a power control apparatus for a home air conditioner according to an embodiment of the present invention;
fig. 4 is a block diagram of a power control apparatus for a home air conditioner according to an embodiment of the present invention;
fig. 5 is a block diagram of a power control apparatus for a home air conditioner according to another embodiment of the present invention; and
fig. 6 is a block diagram of a home air conditioner according to an embodiment of the present invention.
Reference numerals:
1000: a household air conditioner;
100: a power consumption control device;
10: acquisition module, 20: calculation module, 30: control module, 40: a summary module;
11: acquisition unit, 12: electric quantity calculation unit, 31: power calculation unit, 32: a control unit.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A power control method for a home air conditioner according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a power control method for a home air conditioner according to an embodiment of the present invention, as shown in fig. 1, the power control method for a home air conditioner including:
and S1, acquiring the control electricity consumption in the Nth time period in the preset air conditioner operation time.
Wherein N is a positive integer and is more than or equal to 1, N is less than M, and M is the time interval number in the preset air conditioner running time.
It should be noted that the preset air conditioner operation time may be set by the user according to the needs, that is, the time of the expected air conditioner operation. The preset air conditioner operation time is divided into a plurality of time intervals, and each time interval is distributed with corresponding control electricity consumption, namely the electricity consumption expected to be consumed by the air conditioner in the time interval through controlling the air conditioner operation.
In one embodiment of the present invention, the division of the time periods within the preset air conditioner operation time and the control power consumption of each time period may be obtained in advance through experiments and data statistics and analysis by an analysis device, such as a server or a processing terminal.
S2, calculating an actual electricity consumption amount of the air conditioner in the nth period after the nth period is finished.
And S3, when the actual electricity consumption in the Nth time period is larger than the control electricity consumption in the Nth time period, controlling the frequency of the compressor of the air conditioner according to the running power of the air conditioner in the Nth time period.
Specifically, when the actual power consumption in the nth time period is greater than the control power consumption in the nth time period, and it is considered that the power consumption of the air conditioner may exceed the expected power consumption in the preset air conditioner operation time, the overall power of the air conditioner in the time period, that is, the ratio of the control power consumption in the nth time period to the time in the time period, may be calculated according to the control power consumption in the nth time period, and then, the frequency of the compressor of the air conditioner may be controlled according to the operation power of the air conditioner in the nth time period, so as to adjust the power consumption in the (N + 1) th time period, and ensure that the power consumption of the air conditioner in the whole preset air conditioner operation time is within the expected power consumption, thereby achieving the purposes of economy.
According to the household air conditioner electricity consumption control method, the preset air conditioner operation time is divided into time intervals, the electricity consumption is distributed and controlled in each time interval, when the actual electricity consumption in a certain time interval is larger than the electricity consumption, the frequency of the compressor of the air conditioner is adjusted, the electricity consumption in the next time interval is further adjusted, the fact that the electricity consumption is in the expected electricity consumption in the preset air conditioner operation time is guaranteed, the expected control of the electricity consumption for air conditioner is achieved, and the method is economical and energy-saving.
In some embodiments of the present invention, the frequency of the compressor of the air conditioner is controlled according to the operation power of the air conditioner in the nth period, and it can be understood that the frequency of the compressor affects the operation power of the air conditioner in the current operating condition, and the operation power in turn affects the power consumption. And adjusting the frequency of the compressor according to the running power of the Nth time period, so that the power consumption of the next time period can be adjusted. Specifically, the operating power of the air conditioner, that is, the ratio of the actual power consumption to the operating time of the nth time period, may be calculated according to the actual power consumption of the nth time period, and then, the power interval to which the operating power of the air conditioner belongs may be determined, it should be noted that the power interval may be set in advance according to a statistical value of an experiment, or a division rule of the power interval and a frequency limiting manner of each power interval may be set, and when performing frequency limiting control, the frequency of the compressor is controlled according to the frequency limiting manner of the power interval to which the compressor belongs, so as to adjust the power consumption in the corresponding time period, and ensure that the power consumption in the operating time of the air conditioner is within an expected power consumption range.
Referring to fig. 2, specifically, when the operating power of the air conditioner is less than k1·fNWhen, for example, in the interval A of FIG. 2, the frequency of the compressor is controlled to be constant, where k is1For the first limiting interval parameter, set as the case may be, fNThe control power of the Nth time period is the control power obtained according to the ratio of the control electricity consumption of the time period to the time of the time period. In short, in the interval a, the frequency of the compressor is not affected, and the air conditioner operates normally.
Or when the running power of the air conditioner is more than k1·fNAnd is less than k2·fNWhen, for example, the section B in fig. 2, the frequency of the compressor is controlled to maintain the maximum limit value of the operating frequency of the last period, where k is2Is a second frequency-limited interval parameter, k2>k1. In short, as the operation power increases, when in the B interval, the compressor is controlled to maintain the maximum operation frequency for the previous periodAnd (4) limiting values.
Or when the running power of the air conditioner is more than k2·fNAnd then, as shown in the interval C in fig. 2, controlling the compressor to reduce the frequency once every preset time until the minimum allowable operating frequency of the compressor is reached.
In one embodiment of the present invention, the maximum operating frequency of the compressor during the nth period is defined as:
wherein min represents the minimum value, frFor the current operating frequency of the compressor, fOFor the control frequency of the compressor, FreMax is the maximum operation frequency limit value of the compressor in the Nth period, and is a frequency limiting coefficient, and FreMin is the minimum allowable operation frequency of the compressor. In short, in the interval C, the frequency reduction is performed once every preset time, the maximum operation frequency of the compressor is limited to FreMax in the time period, and when the FreMax frequency is reduced to be less than the minimum allowable operation frequency FreMin of the compressor, the compressor is operated according to the minimum refrigeration frequency.
In some embodiments of the present invention, for the control power consumption in the nth time period within the preset air conditioner operation time, the allocated power consumption proportion in the nth time period may be obtained, and then, the control power consumption in the nth time period may be calculated according to the allocated power consumption proportion in the nth-1 time period, the allocated power consumption proportion in the nth time period, the expected power consumption set by the user, and the actual power consumption in the nth-1 time period.
Wherein, the distribution power consumption proportion is obtained by calculation of the analysis device according to the preset air conditioner running time and the expected power consumption. For example, the analysis device may include a server or a computing terminal, which performs statistics and analysis according to the expected power consumption set by the user and the preset air conditioner operation time, and calculates the proportion of the power consumption allocated in each period.
The home air conditioner of the embodiment of the present invention may include one of a split-type air conditioner and a multi-split air conditioner. The split air conditioner includes one split air conditioner, i.e., one indoor unit and one outdoor unit, and one split air conditioner, i.e., an air conditioner in which a plurality of indoor units share one outdoor unit. The household air conditioner is provided with an electric quantity detection function for calculating the actual electric quantity used by the air conditioner. Also, the power control command of the analysis device such as the server can be received through the internet.
The following describes a power control method for a household air conditioner according to an embodiment of the present invention, taking a split air conditioner as an example.
The user sets expected electricity consumption E and preset air conditioner operation time T, and receives each time period T from the servernDistribution power consumption proportion pnFor example, the first period t1Is allocated to the power consumption p1A second period t2Allocated power consumption p2Wherein the period tnAnd the proportion p of the allocated power consumptionnThe requirements are met at the same time:
in the first time period t of receiving server transmission1Distribution power consumption proportion p1Then, the main control software of the air conditioner controls t1The amount of electricity consumed in a time period, i.e. the control electricity consumption, is e1=p1× E, which controls the overall power level, i.e. the first time period t1The control power of (1) is: f. of1=e1/t1. After the first period is over, the actual electricity consumption c of the first period is calculated by the electricity amount detection function1. In a second period t2The electricity consumption of the whole machine needs to be controlled toThe time interval controls the power value of the whole machine, namely the second time interval t2Has a control power of f2=e2/t2. Subsequent periods are analogized in turn. After each time interval is reached, the electricity quantity detection calculates the actual electricity consumption of the time interval, compares the actual electricity consumption with the control electricity consumption of the time interval, and adjusts the frequency of the compressor according to the running power of the air conditioner at the current time interval when the actual electricity consumption exceeds the control electricity consumption as shown in figure 2 so as to adjust the electricity consumption of the next time interval to ensure that the electricity consumption in the preset air conditioner running time is in the expected electricity consumptionAnd within the quantity range, the control on the idle call electric quantity is realized.
For a multi-split air conditioner, since a plurality of indoor units share one outdoor unit, the power consumption of the air conditioner includes the power consumption of each of the indoor units and the outdoor unit, and thus, the power consumption control method further includes: and acquiring the actual electricity consumption component of each indoor unit in the Nth time period, summarizing the actual electricity consumption component of each indoor unit to acquire the actual electricity consumption of the air conditioner in the Nth time period, comparing the actual electricity consumption with the control electricity consumption in the time period, and adjusting the frequency of the compressor according to the running power of the air conditioner in the time period when the actual electricity consumption is greater than the control electricity consumption.
In summary, the household air conditioner power consumption control method of the embodiment of the present invention divides the preset air conditioner operation time into time segments, performs time-segment control on the power consumption of the air conditioner, and adjusts the frequency of the compressor in the next time segment when the actual power consumption in a certain time segment exceeds the control power consumption in the time segment, so as to adjust the operation power and further adjust the actual power consumption, thereby ensuring that the actual power consumption of the air conditioner is within the expected power consumption range in the whole preset air conditioner operation time, achieving the control of the household air conditioner power consumption, achieving the purpose of energy saving and economy, and being more beneficial to the user to perform expenditure allocation.
An electric power control apparatus for a home air conditioner according to another aspect embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 3 is a block diagram of a power consumption control apparatus for a home air conditioner according to an embodiment of the present invention, and as shown in fig. 3, the power consumption control apparatus 100 includes an acquisition module 10, a calculation module 20, and a control module 30.
The obtaining module 10 is configured to obtain control power consumption in an nth time period within a preset air conditioner operation time, where N is a positive integer and N is greater than or equal to 1 and less than M, and M is the number of time periods within the preset air conditioner operation time;
the calculating module 20 is used for calculating the actual electricity consumption of the air conditioner in the nth period after the nth period is finished.
The control module 30 is configured to control a frequency of a compressor of the air conditioner according to an operation power of the air conditioner during the nth period when the actual power consumption during the nth period is greater than the control power consumption during the nth period.
Specifically, when the actual power consumption in the nth time period is greater than the control power consumption in the nth time period, and it is considered that the power consumption of the air conditioner may exceed the expected power consumption in the preset air conditioner operation time, the control module 30 may calculate the overall power of the air conditioner in the nth time period according to the control power consumption in the nth time period, that is, the ratio of the control power consumption in the nth time period to the time in the nth time period, and further, control the frequency of the compressor of the air conditioner according to the operation power of the air conditioner in the nth time period to adjust the power consumption in the (N + 1) th time period, so as to ensure that the power consumption of the air conditioner in the whole preset air conditioner operation time is within the expected power consumption, thereby achieving the purposes of economy and energy.
According to the household air conditioner electricity consumption control device 100, the preset air conditioner operation time is divided into time intervals, the electricity consumption is distributed and controlled in each time interval, when the actual electricity consumption in a certain time interval is larger than the control electricity consumption, the frequency of the compressor of the air conditioner is adjusted, the electricity consumption in the next time interval is further adjusted, the fact that the air conditioner electricity consumption is in the expected electricity consumption range in the preset air conditioner operation time is guaranteed, the expected control of the air conditioner electricity consumption is achieved, and the household air conditioner electricity consumption control device is economical and energy-saving.
In some embodiments of the present invention, as shown in fig. 4, the control module 30 includes a power calculation unit 31 and a control unit 32. Wherein, the power calculating unit 31 is configured to calculate the operation power of the air conditioner according to the actual power consumption in the nth period, that is, the ratio of the actual power consumption to the operation time in the nth period; the control unit 32 is configured to determine a power interval to which the operating power of the air conditioner belongs, and it should be noted that the power interval may be set in advance according to a statistical value of an experiment or a division rule of the power interval and a frequency limiting manner of each power interval, and then, during the frequency limiting control, the frequency of the compressor is controlled according to the frequency limiting manner of the power interval to which the compressor belongs, so as to adjust the electric quantity consumed in a corresponding time period, and ensure that the electric quantity consumed in the preset air conditioner operating time is within an expected electric quantity consumption range.
Specifically, referring to fig. 2, the control unit 32 controls the air conditioner to operate at an operating power of less than k1·fNWhile controlling the frequency of the compressorIs unchanged, wherein k1Is a first frequency limiting interval parameter, fNControl power for the nth period; or when the running power of the air conditioner is more than k1·fNAnd is less than k2·fNWhen the frequency of the compressor is controlled to maintain the maximum limit value of the operation frequency of the last period, wherein k2Is a second frequency-limited interval parameter, k2>k1(ii) a Or when the running power of the air conditioner is more than k2·fNAnd controlling the compressor to reduce the frequency once every preset time until the minimum allowable running frequency of the compressor.
The control unit 32 defines the maximum operating frequency of the compressor during the nth period as:
wherein f isrFor the current operating frequency of the compressor, fOFor the control frequency of the compressor, FreMax is the maximum operation frequency limit value of the compressor in the Mth period, and is a frequency limiting coefficient, and FreMin is the minimum operation frequency of the compressor.
In some embodiments of the present invention, as shown in fig. 4, the obtaining module 10 includes a obtaining unit 11 and an electric quantity calculating unit 12. The obtaining unit 11 is configured to obtain a proportion of the allocated electricity consumption in the nth time period; the electricity amount calculation unit 12 is used for calculating the control electricity consumption amount in the N time period according to the distribution electricity consumption amount proportion in the N-1 time period, the actual electricity consumption amount in the N-1 time period, the distribution electricity consumption amount proportion in the N time period and the expected electricity consumption amount set by the user.
Wherein, the distribution power consumption proportion is obtained by calculation of the analysis device according to the preset air conditioner running time and the expected power consumption. For example, the analysis device may include a server or a computing terminal, which performs statistics and analysis according to the expected power consumption set by the user and the preset air conditioner operation time, and calculates the proportion of the power consumption allocated in each period.
The household air conditioner of the embodiment of the invention comprises one of a split air conditioner and a multi-split air conditioner. The split air conditioner includes one split air conditioner, i.e., one indoor unit and one outdoor unit, and one split air conditioner, i.e., an air conditioner in which a plurality of indoor units share one outdoor unit. The household air conditioner is provided with an electric quantity detection function for calculating the actual electric quantity used by the air conditioner. Also, the power control command of the analysis device such as the server can be received through the internet.
For a multi-split air conditioner, since a plurality of indoor units share one outdoor unit, the power consumption of the air conditioner includes the power consumption of each indoor unit and the power consumption of each outdoor unit, referring to fig. 5, the power consumption control apparatus 100 further includes a summarizing module 40, and the summarizing module 40 is configured to obtain the actual power consumption component of each indoor unit in the nth period, and summarize the actual power consumption component of each indoor unit to obtain the actual power consumption of the air conditioner in the nth period. Further, the control module 30 compares the actual power consumption with the control power consumption for the period, and adjusts the frequency of the compressor according to the operation power of the air conditioner for the period when the actual power consumption is greater than the control power consumption.
Based on the electric power control apparatus for a home air conditioner according to the embodiment of the above aspect, a home air conditioner according to another aspect embodiment of the present invention will be described below with reference to the accompanying drawings.
Fig. 6 is a block diagram of a home air conditioner according to an embodiment of the present invention, and as shown in fig. 6, the home air conditioner 1000 includes the power consumption control apparatus 100 of the above aspect, including, of course, various components of a refrigeration system, such as a compressor.
By adopting the power consumption control device 100 in the aspect, the household air conditioner 1000 in the embodiment of the invention can realize the expected control of the power consumption, achieve the purpose of energy saving and economy, and be more beneficial to the distribution of the expenditure of the user.
It should be noted that in this specification, any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a random access memory (RAN), a read-only memory (RON), an erasable programmable read-only memory (EPRON or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDRON). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. A method for controlling electric quantity for a household air conditioner is characterized by comprising the following steps:
acquiring control power consumption of an Nth time period within preset air conditioner operation time, wherein N is a positive integer and is more than or equal to 1 and less than M, and M is the time period number within the preset air conditioner operation time;
calculating an actual power consumption amount of the air conditioner for the nth period after the nth period is finished;
when the actual electricity consumption in the Nth time period is larger than the control electricity consumption in the Nth time period, controlling the frequency of a compressor of the air conditioner according to the running power of the air conditioner in the Nth time period;
wherein controlling a frequency of a compressor of the air conditioner according to an operation power of the air conditioner in the nth period includes:
calculating the running power of the air conditioner according to the actual electricity consumption in the Nth period;
determining a power interval to which the operating power of the air conditioner belongs, and controlling the frequency of the compressor according to the frequency limiting mode of the power interval;
the method for determining the power interval to which the running power of the air conditioner belongs and controlling the frequency of the compressor according to the frequency limiting mode of the power interval comprises the following steps:
when the operating power of the air conditioner is less than k1·fNWhile controlling the frequency of the compressor to be constant, wherein k1Is a first frequency limiting interval parameter, fNControl power for the nth period; or,
when the operating power of the air conditioner is more than k1·fNAnd is less than k2·fNControlling the frequency of the compressor to maintain a maximum limit value of the operating frequency for a previous period of time, wherein k2Is a second frequency-limited interval parameter, k2>k1(ii) a Or,
when the operating power of the air conditioner is more than k2·fNWhen the frequency of the compressor is reduced, controlling the compressor to reduce the frequency once every preset time until the minimum allowable operation frequency of the compressor is reached;
the maximum operating frequency of the compressor during the nth period is defined as:
wherein f isrFor the current operating frequency of the compressor, fOFor the control frequency of the compressor, FreMax is the maximum operating frequency limit value of the compressor in the Nth periodThe frequency coefficient, FreMin, is the minimum allowable operating frequency of the compressor.
2. The method for controlling an amount of electric power for a home air conditioner according to claim 1, wherein obtaining the control amount of electric power for the nth period within the preset air conditioner operation time includes:
acquiring the distribution power consumption proportion of the Nth time period;
and calculating the control electricity consumption in the N period according to the distribution electricity consumption proportion in the N-1 period, the distribution electricity consumption proportion in the N period, the expected electricity consumption set by a user and the actual electricity consumption in the N-1 period.
3. The method for controlling an amount of electric power for a home air conditioner according to claim 2, wherein the allocated electric power usage proportion is obtained by calculation by an analyzing means based on the preset air conditioner operation time and the expected electric power usage.
4. A method for controlling an amount of power for a home air conditioner according to any one of claims 1 to 3, wherein the home air conditioner includes one of a split-type air conditioner and a multi-split air conditioner.
5. The method for controlling an amount of electric power for a home air conditioner according to claim 4, wherein for the one-or-many air conditioner, the method for controlling an amount of electric power consumption further comprises:
and acquiring the actual electricity consumption component of each indoor unit in the Nth time period, and summarizing the actual electricity consumption component of each indoor unit to obtain the actual electricity consumption of the air conditioner in the Nth time period.
6. An electric power control apparatus for a household air conditioner, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring control electricity consumption of an Nth time period in the preset air conditioner operation time, N is a positive integer and is more than or equal to 1 and less than M, and M is the time period number in the preset air conditioner operation time;
a calculating module for calculating an actual power consumption amount of the air conditioner in the nth period after the nth period is finished;
the control module is used for controlling the frequency of a compressor of the air conditioner according to the running power of the air conditioner in the Nth time period when the actual electricity consumption in the Nth time period is larger than the control electricity consumption in the Nth time period;
the control module includes:
the power calculation unit is used for calculating the running power of the air conditioner according to the actual electricity consumption in the Nth period;
the control unit is used for determining a power interval to which the running power of the air conditioner belongs and controlling the frequency of the compressor according to the frequency limiting mode of the power interval; the control unit is used for controlling the operation of the electronic device,
when the operating power of the air conditioner is less than k1·fNWhile controlling the frequency of the compressor to be constant, wherein k1Is a first frequency limiting interval parameter, fNControl power for the nth period; or,
when the operating power of the air conditioner is more than k1·fNAnd is less than k2·fNControlling the frequency of the compressor to maintain a maximum limit value of the operating frequency for a previous period of time, wherein k2Is a second frequency-limited interval parameter, k2>k1(ii) a Or,
when the running power of the air conditioner is more than k2·fNWhen the frequency of the compressor is reduced, controlling the compressor to reduce the frequency once every preset time until the minimum allowable operation frequency of the compressor is reached;
the control unit limits the maximum operation frequency of the compressor in the Nth period to be:
wherein f isrFor the current operating frequency of the compressor, fOFor the control frequency of the compressor, FreMax is the maximum operation frequency limit value of the compressor in the Mth period, and is the frequency limiting coefficient, and FreMin is the frequency limiting coefficientMinimum operating frequency of the compressor.
7. The electric power control apparatus for home air conditioner according to claim 6, wherein the obtaining module comprises:
the obtaining unit is used for obtaining the distribution power consumption proportion of the Nth time period;
and the electric quantity calculating unit is used for calculating the control electric quantity in the N time period according to the distribution electric quantity proportion in the N-1 time period, the actual electric quantity in the N-1 time period, the distribution electric quantity proportion in the N time period and the expected electric quantity set by a user.
8. The electric power control apparatus for home air conditioner according to claim 7, wherein the distributed electric power consumption proportion is obtained by calculation by an analyzing means based on the preset air conditioner operation time and the expected electric power consumption.
9. A power control apparatus for a home air conditioner according to any one of claims 6 to 8, wherein the home air conditioner includes one of a split-type air conditioner and a multi-split air conditioner.
10. The electricity consumption control apparatus for a home air conditioner according to claim 9, wherein the electricity consumption control apparatus further comprises, for the multi-split air conditioner:
and the summarizing module is used for acquiring the actual electricity consumption component of each indoor unit in the Nth time period and summarizing the actual electricity consumption component of each indoor unit to obtain the actual electricity consumption of the air conditioner in the Nth time period.
11. A household air conditioner characterized by comprising the electric power consumption amount control apparatus according to any one of claims 6 to 10.
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CN111023466A (en) * | 2019-12-23 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and system for air conditioner power consumption, storage medium and air conditioner |
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