CN106969413B - Household air conditioner and power consumption control method and control device thereof - Google Patents

Abstract

The invention discloses a power consumption control method for a household air conditioner. The power consumption control method comprises: obtaining the control power consumption in the Nth period within a preset air conditioner operating time, wherein N is a positive integer and 1≤N<M , M is the number of time periods in the preset air conditioner operating time; after the end of the Nth period, the actual power consumption of the air conditioner in the Nth period is calculated; when the actual power consumption in the Nth period is greater than the control power consumption in the Nth period When , the frequency of the compressor of the air conditioner is controlled according to the operating power of the air conditioner in the Nth period. The method for controlling the electricity consumption of the household air conditioner of the present invention can realize the expected control of the electricity consumption, is more energy-saving and economical, and is more beneficial to the user's distribution of expenditures. The invention also discloses a household air conditioner power consumption control device and a household air conditioner.

Description

Household air conditioner and power consumption control method and control device thereof

technical field

The invention belongs to the technical field of electrical appliance manufacturing, and in particular relates to a method for controlling power consumption of a household air conditioner, a device for controlling the power consumption of a household air conditioner, and a household air conditioner.

Background technique

In consideration of energy saving and economy, users have an increasingly strong demand for the power consumption of electrical appliances to be expected to be distributed. Reasonable allocation of expenses, and there is no detailed technical solution in the related art.

SUMMARY OF THE INVENTION

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

Therefore, the present invention needs to provide a method for controlling the electricity consumption of a household air conditioner, which can realize the control of the electricity consumption of the household air conditioner.

The present invention also provides a household air conditioner power consumption control device and a household air conditioner having the same.

In order to solve the above problem, a method for controlling the power consumption of a household air conditioner proposed in one aspect of the present invention includes: obtaining the control power consumption in the Nth period within a preset air conditioner operating time, where N is a positive integer and 1≤N<M, M is the number of time periods in the preset air conditioner operating time; after the end of the Nth time period, the actual power consumption of the air conditioner in the Nth time period is calculated; when the actual power consumption of the Nth time period is When the power consumption is greater than the control power consumption in the Nth period, the frequency of the compressor of the air conditioner is controlled according to the operating power of the air conditioner in the Nth period.

In the method for controlling the power consumption of a household air conditioner according to an embodiment of the present invention, by dividing the preset operating time of the air conditioner into time periods, and assigning the control power consumption to each time period, the actual power consumption in a certain period is greater than the control power consumption. , adjust the frequency of the compressor of the air conditioner, and then adjust the electricity consumption in the next period to ensure that the electricity consumption of the air conditioner is within the expected electricity consumption during the preset air conditioner operation time, so as to achieve the expected control of the electricity consumption of the air conditioner, which is more economical. Energy saving.

In some embodiments of the present invention, controlling the frequency of the compressor of the air conditioner according to the operating power of the air conditioner in the Nth period includes: calculating the The operating power of the air conditioner; determine the power interval to which the operating power of the air conditioner belongs, and control the frequency of the compressor according to the frequency limiting mode of the power interval.

In some embodiments of the present invention, determining the power interval to which the operating power of the air conditioner belongs, and controlling the frequency of the compressor according to the frequency limiting manner of the power interval, includes:

When the operating power of the air conditioner is less than k ₁ ·f _N , the frequency of the compressor is controlled unchanged, where k ₁ is the first frequency limiting interval parameter, and f _N is the control power in the Nth period; or,

When the operating power of the air conditioner is greater than k ₁ ·f _N and less than k ₂ ·f _N , the frequency of the compressor is controlled to maintain the maximum limit of the operating frequency of the previous period, where k ₂ is the second frequency limit interval parameter, k ₂ >k ₁ ; or,

When the operating power of the air conditioner is greater than the k ₂ ·f _N , the compressor is controlled to reduce the frequency every preset time until the minimum allowable operating frequency of the compressor.

In some embodiments of the present invention, the maximum operating frequency of the compressor in the Nth period is defined as:

Wherein, _fr is the current operating frequency of the compressor, f _O is the control frequency of the compressor, FreMax is the maximum operating frequency limit value of the compressor in the Nth period, δ is the frequency limiting coefficient, and FreMin is the the minimum allowable operating frequency of the compressor.

In some embodiments of the present invention, obtaining the control power consumption in the Nth period of the preset air conditioner operating time includes:

Obtain the proportion of allocated electricity consumption in the Nth period; according to the proportion of allocated electricity consumption in the N-1th period, the allocated electricity consumption proportion in the Nth period, the expected power consumption set by the user, and the N-1th period Calculate the control power consumption in the Nth period of time.

In some embodiments of the present invention, the distributed electricity consumption ratio is calculated and obtained by the analyzing device according to the preset air conditioner operating time and the expected electricity consumption.

In some embodiments of the present invention, the household air conditioner includes one of a one-drive-one-split air conditioner and a one-drive-multiple air conditioner.

In some embodiments of the present invention, for the one-to-many air conditioner, the power consumption control method further includes: acquiring the actual power consumption component of each indoor unit in the Nth period, and assigning each indoor unit Summarize the actual power consumption of the air conditioner to obtain the actual power consumption of the air conditioner in the Nth time period.

In order to solve the above problem, another aspect of the present invention proposes a power consumption control device for a household air conditioner, comprising: an acquisition module for acquiring the control power consumption in the Nth period within a preset air conditioner operating time, wherein N is a positive integer and 1≤N<M, where M is the number of time periods in the preset air conditioner operating time; a calculation module is used to calculate the actual power consumption of the air conditioner in the Nth time period after the Nth time period ends; control a module for controlling the compressor of the air conditioner according to the operating power of the air conditioner in the Nth period when the actual power consumption in the Nth period is greater than the control power consumption in the Nth period Frequency of.

The device for controlling the power consumption of a household air conditioner according to the embodiment of the present invention divides the preset operating time of the air conditioner into time periods and allocates the control power consumption to each time period, so that the actual power consumption in a certain period is greater than the control power consumption. , adjust the frequency of the compressor of the air conditioner, and then adjust the power consumption in the next period to ensure that the power consumption of the air conditioner is within the expected power consumption range during the preset air conditioner operation time, so as to achieve the expected control of the power consumption of the air conditioner. Economical and energy-saving.

In some embodiments of the present invention, the control module includes: a power calculation unit, configured to calculate the operating power of the air conditioner according to the actual power consumption in the Nth period; a control unit, configured to determine the The power interval to which the operating power of the air conditioner belongs, and the frequency of the compressor is controlled according to the frequency limiting method of the power interval.

In some embodiments of the present invention, the control unit,

When the operating power of the air conditioner is less than k ₁ ·f _N , the frequency of controlling the compressor remains unchanged, where k ₁ is the first frequency limiting interval parameter, and f _N is the control power in the Nth period; or,

When the operating power of the air conditioner is greater than k ₁ ·f _N and less than k ₂ ·f _N , the frequency of the compressor is controlled to maintain the maximum limit of the operating frequency of the previous period, where k ₂ is the second frequency limit interval parameter, k ₂ >k ₁ ; or,

When the operating power of the air conditioner is greater than the k ₂ ·f _N , the compressor is controlled to reduce the frequency every preset time until the minimum allowable operating frequency of the compressor.

In some embodiments of the present invention, the control unit defines the maximum operating frequency of the compressor in the Nth period as:

Wherein, _fr is the current operating frequency of the compressor, f _O is the control frequency of the compressor, FreMax is the maximum operating frequency limit value of the compressor in the Mth period, δ is the frequency limiting coefficient, and FreMin is the the minimum operating frequency of the compressor.

In some embodiments of the present invention, the obtaining module includes: an obtaining unit, configured to obtain the allocated electricity consumption ratio in the Nth period; The control power consumption in the Nth period is calculated based on the ratio, the actual power consumption in the N-1th period, the allocated power consumption ratio in the Nth period, and the expected power consumption set by the user.

In some embodiments of the present invention, the distributed electricity consumption ratio is calculated and obtained by the analyzing device according to the preset air conditioner operating time and the expected electricity consumption.

In some embodiments of the present invention, the household air conditioner includes one of a one-drive-one-split air conditioner and a one-drive-multiple air conditioner.

In some embodiments of the present invention, for the one-drive-multiple air conditioner, the power consumption control device further includes:

The aggregation module is configured to acquire the actual power consumption of each indoor unit in the Nth period, and summarize the actual power consumption of each indoor unit to obtain the actual consumption of the air conditioner in the Nth period power.

Based on the power consumption control device in the above aspect, a household air conditioner proposed in another aspect of the present invention includes the power consumption control device.

The household air conditioner of the embodiment of the present invention adopts the power consumption control device of the above aspect, which can realize the expected control of power consumption, achieve the purpose of energy saving and economy, and is more conducive to the allocation of expenditures by users.

Description of drawings

1 is a flowchart of a method for controlling electricity consumption of a household air conditioner according to an embodiment of the present invention;

2 is a schematic diagram of a set interval for adjusting the compressor frequency according to an embodiment of the present invention;

3 is a block diagram of a household air conditioner power consumption control device according to an embodiment of the present invention;

FIG. 4 is a block diagram of a household air conditioner power consumption control device according to an embodiment of the present invention;

FIG. 5 is a block diagram of a household air conditioner power consumption control device according to another embodiment of the present invention; and

6 is a block diagram of a home air conditioner according to an embodiment of the present invention.

Reference number:

1000: Household air conditioner;

100: power consumption control device;

10: acquisition module, 20: calculation module, 30: control module, 40: summary module;

11: Acquisition unit, 12: Electricity calculation unit, 31: Power calculation unit, 32: Control unit.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

The following describes a method for controlling power consumption of a household air conditioner according to an embodiment of the present invention with reference to the accompanying drawings.

1 is a flowchart of a method for controlling electricity consumption of a household air conditioner according to an embodiment of the present invention. As shown in FIG. 1 , the method for controlling electricity consumption of a household air conditioner includes:

S1: Obtain the control power consumption in the Nth period within the preset air conditioner operating time.

Wherein, N is a positive integer and 1≤N<M, and M is the number of time periods in the preset air conditioner operating time.

It should be noted that the preset air conditioner operation time may be set by the user according to needs, that is, the expected air conditioner operation time. The preset air conditioner operating time is divided into multiple time periods, and each time period is assigned a corresponding control power consumption.

In an embodiment of the present invention, the division of time periods within the preset air conditioner operating time and the control power consumption of each time period can be obtained through experiments in advance and data statistics and analysis performed by an analysis device, such as a server or a processing terminal. .

S2, after the end of the Nth time period, calculate the actual power consumption of the air conditioner in the Nth time period.

S3, when the actual power consumption in the Nth period is greater than the control power consumption in the Nth period, control the frequency of the compressor of the air conditioner according to the operating power of the air conditioner in the Nth period.

Specifically, when the actual power consumption in the Nth period is greater than the control power consumption in the Nth period, it is considered that the power consumption of the air conditioner may exceed the expected power consumption during the preset air conditioner operating time, and the control according to the Nth period The power consumption can calculate the whole power of the air conditioner in this period, that is, the ratio of the control power consumption in the Nth period to the time in this period, and then, according to the operating power of the air conditioner in the Nth period, control the frequency of the compressor of the air conditioner, In order to adjust the power consumption in the N+1th period, it is ensured that the power consumption of the air conditioner in the entire preset air conditioner operating time is within the expected power consumption, so as to achieve the purpose of economy and energy saving.

In the method for controlling the power consumption of a household air conditioner according to an embodiment of the present invention, by dividing the preset operating time of the air conditioner into time periods, and assigning the control power consumption to each time period, the actual power consumption in a certain period is greater than the control power consumption. , adjust the frequency of the compressor of the air conditioner, and then adjust the electricity consumption in the next period to ensure that the electricity consumption of the air conditioner is within the expected electricity consumption during the preset air conditioner operation time, so as to achieve the expected control of the electricity consumption of the air conditioner, which is more economical. Energy saving.

In some embodiments of the present invention, the frequency of the compressor of the air conditioner is controlled according to the operating power of the air conditioner in the Nth period. It can be understood that the frequency of the compressor affects the operating power of the air conditioner under the current working condition, and the operating power affects the operating power of the air conditioner. energy used. The compressor frequency is adjusted according to the operating power in the Nth period, and then the electricity consumption in the next period can be adjusted. Specifically, the operating power of the air conditioner can be calculated according to the actual power consumption in the Nth period, that is, the ratio of the actual power consumption to the operating time of the period, and then the power interval to which the operating power of the air conditioner belongs is determined. It should be noted that , the power interval or the division rule of the power interval and the frequency limiting method of each power interval can be set in advance according to the statistical value of the experiment. When performing frequency limiting control, the frequency of the compressor is controlled according to the frequency limiting method of the power interval. , to adjust the power consumption during the corresponding period to ensure that the power consumption during the preset air conditioner operating time is within the expected power consumption range.

Referring to FIG. 2 , specifically, when the operating power of the air conditioner is less than k ₁ ·f _N , such as the A section in FIG. 2 , the frequency of the control compressor remains unchanged, where k ₁ is the parameter of the first frequency limiting section , set according to the specific situation, f _N is the control power of the Nth period, that is, the control power obtained according to the ratio of the control power consumption of the period to the time of the period. In short, in the A section, the frequency of the compressor is not affected, and the air conditioner operates normally.

Or, when the operating power of the air conditioner is greater than k ₁ ·f _N and less than k ₂ ·f _N , such as the B interval in FIG. 2 , the frequency of the compressor is controlled to maintain the maximum limit of the operating frequency of the previous period, where k ₂ is the second frequency limiting interval parameter, k ₂ >k ₁ . In short, as the operating power increases, when in the B section, the compressor is controlled to maintain the maximum limit of the operating frequency of the previous period.

Alternatively, when the operating power of the air conditioner is greater than k ₂ ·f _N , as shown in section C in Figure 2, the compressor is controlled to reduce the frequency every preset time until the minimum allowable operating frequency of the compressor.

In an embodiment of the present invention, the maximum operating frequency of the compressor in the Nth period is defined as:

Among them, min represents the minimum value, fr is the current operating frequency of the compressor, f _O is the control frequency of the compressor, _FreMax is the maximum operating frequency limit value of the compressor in the Nth period, δ is the frequency limiting coefficient, and Fre Min is the The minimum allowable operating frequency of the compressor. In short, in the C interval, the frequency is reduced every preset time, and the maximum operating frequency of the compressor is limited to FreMax during this time period. frequency operation.

In some embodiments of the present invention, for the control power consumption in the Nth period of the preset air conditioner operating time, the proportion of the distributed power consumption in the Nth period can be obtained, and then, according to the distributed power consumption in the N-1th period The control power consumption in the Nth period is calculated based on the amount ratio, the allocated power consumption ratio in the Nth period, the expected power consumption set by the user, and the actual power consumption in the N-1th period.

Wherein, the proportion of distributed electricity consumption is calculated and obtained by the analysis device according to the preset air conditioner operating time and the expected electricity consumption. For example, the analysis device may include a server or a computing terminal, and perform statistics and analysis according to the expected electricity consumption set by the user and the preset air conditioner operating time, and calculate the proportion of electricity consumption allocated for each time period.

The household air conditioner in the embodiment of the present invention may include one of a one-drive-one-split air conditioner and a one-drive-multiple air conditioner. Among them, one-to-one split air conditioner is an air conditioner with one indoor unit and one outdoor unit, and one-to-many air conditioner is an air conditioner in which multiple indoor units share one outdoor unit. The household air conditioner is equipped with a power detection function, which is used to calculate the actual power consumption of the air conditioner. Also, it is possible to receive a power control command from an analysis device such as a server through the Internet.

The method for controlling the electricity consumption of a household air conditioner according to an embodiment of the present invention will be described below by taking a one-drive-one-split air conditioner as an example.

The user sets the expected power consumption E and the preset air conditioner operating time T, and receives the allocated power consumption ratio p _n for each time period t _n from the server, for example, the allocated power consumption p ₁ for the first time period t ₁ , and the second The time period t ₂ distributes the power consumption p ₂ , wherein the time period t _n and the distribution power consumption ratio p _n must simultaneously satisfy:

该时段控制整机功率值即第二时段t₂的控制功率为f₂＝e₂/t₂。后续时段依次类推。在每个时段达到之后，电量检测计算该时段的实际用电量，并将实际用电量与该时段的控制用电量进行比较，当实际用电量超出控制用电量时按照如图2所示，根据当前时段的空调的运行功率调节压缩机的频率，以调整下一个时段的用电量，以保证预设空调运行时间内的用电量在预期用电量范围内，实现对空调用电量的控制。After receiving the distributed power consumption ratio p ₁ of the first period t ₁ sent by the server, the main control software of the air conditioner controls the power consumption during the t ₁ period, that is, the control power consumption is e ₁ =p ₁ ×E. The power value of the whole machine, that is, the control power of the first period t ₁ is: f ₁ =e ₁ /t ₁ . After the first period of time ends, the actual power consumption c ₁ of the first period of time is calculated through the power detection function. In the second period t ₂ , it is necessary to control the power consumption of the whole machine to be

The control power value of the whole machine in this period, that is, the control power of the second period t ₂ is f ₂ =e ₂ /t ₂ . Subsequent periods and so on. After each period is reached, the power detection calculates the actual power consumption of the period, and compares the actual power consumption with the control power consumption of the period. When the actual power consumption exceeds the control power consumption, it is shown in Figure 2 As shown in the figure, the frequency of the compressor is adjusted according to the operating power of the air conditioner in the current period to adjust the electricity consumption in the next period to ensure that the electricity consumption during the preset air conditioner operation time is within the expected electricity consumption range, and the Control of electricity consumption.

For one-to-many air conditioners, since multiple indoor units share one outdoor unit, the power consumption of the air conditioner includes the power consumption of each indoor unit and the outdoor unit. Therefore, the power consumption control method further includes: obtaining the Nth time period Calculate the actual power consumption of each indoor unit, and summarize the actual power consumption of each indoor unit to obtain the actual power consumption of the air conditioner in the Nth period, and then compare the actual power consumption with the control of this period. The power consumption is compared, and when the actual power consumption is greater than the control power consumption, the frequency of the compressor is adjusted according to the operating power of the air conditioner in this period.

In general, the method for controlling the electricity consumption of a household air conditioner according to the embodiment of the present invention divides the preset operation time of the air conditioner into time periods, controls the electricity consumption of the air conditioner by time periods, and the actual electricity consumption in a certain period of time exceeds the period of time. When controlling the power consumption, adjust the frequency of the compressor in the next period to adjust the operating power and then adjust the actual power consumption to ensure that the actual power consumption of the air conditioner is within the expected power consumption range during the entire preset air conditioner operating time. It can realize the control of the power consumption of household air conditioners, achieve the purpose of energy saving and economy, and is more conducive to the user's expenditure allocation.

The following describes a device for controlling power consumption of a household air conditioner according to another embodiment of the present invention with reference to the accompanying drawings.

FIG. 3 is a block diagram of an apparatus for controlling power consumption of a household air conditioner according to an embodiment of the present invention. As shown in FIG.

Wherein, the obtaining module 10 is configured to obtain the control power consumption of the Nth time period within the preset air conditioner operating time, wherein N is a positive integer and 1≤N<M, and M is the number of time periods within the preset air conditioner operating time;

The calculation module 20 is configured to calculate the actual power consumption of the air conditioner in the Nth period after the Nth period ends.

The control module 30 is configured to control the frequency of the compressor of the air conditioner according to the operating power of the air conditioner in the Nth period when the actual power consumption in the Nth period is greater than the control power consumption in the Nth period.

Specifically, when the actual power consumption in the Nth period is greater than the control power consumption in the Nth period, it is considered that the power consumption of the air conditioner may exceed the expected power consumption during the preset air conditioner operating time, and the control module 30 determines according to the Nth period. The control power consumption of the period can calculate the whole power of the air conditioner in this period, that is, the ratio of the control power consumption in the Nth period to the time of the period, and then control the compressor of the air conditioner according to the operating power of the air conditioner in the Nth period. The frequency is adjusted to adjust the power consumption in the N+1th period to ensure that the power consumption of the air conditioner in the entire preset air conditioner operating time is within the expected power consumption, so as to achieve the purpose of economy and energy saving.

The device 100 for controlling the power consumption of a household air conditioner according to the embodiment of the present invention divides the preset operating time of the air conditioner into time periods and allocates the control power consumption to each time period, so that the actual power consumption in a certain period is greater than the control power consumption When the air conditioner is running, adjust the frequency of the compressor of the air conditioner, and then adjust the power consumption of the next period to ensure that the power consumption of the air conditioner is within the expected power consumption range during the preset air conditioner operation time, and achieve the expected control of the power consumption of the air conditioner. More 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 . The power calculation unit 31 is used to calculate the operating 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 operating time of the period; the control unit 32 is used to determine the power to which the operating power of the air conditioner belongs. It should be noted that the power interval or the division rule of the power interval and the frequency limiting method of each power interval can be set in advance according to the statistical value of the experiment. Control the frequency of the compressor to adjust the power consumption during the corresponding period to ensure that the power consumption during the preset air conditioner operating time is within the expected power consumption range.

Specifically, as shown in FIG. 2 , the control unit 32 controls the frequency of the compressor to remain unchanged when the operating power of the air conditioner is less than k ₁ ·f _N , where k ₁ is the first frequency limiting interval parameter, and f _N is the The control power of the Nth period; or, when the operating power of the air conditioner is greater than k ₁ ·f _N and less than k ₂ ·f _N , the frequency of the control compressor maintains the maximum limit of the operating frequency of the previous period, where k ₂ is the second frequency limiting interval parameter, k ₂ >k ₁ ; or, when the operating power of the air conditioner is greater than k ₂ ·f _N , the compressor is controlled to reduce the frequency every preset time until the minimum allowable operating frequency of the compressor.

The control unit 32 defines the maximum operating frequency of the compressor in the Nth period as:

Among them, fr is the current operating frequency of the compressor, f _O is the control frequency of the compressor, _FreMax is the maximum operating frequency limit value of the compressor in the Mth period, δ is the frequency limiting coefficient, and Fre Min is the minimum operating frequency of the compressor frequency.

In some embodiments of the present invention, as shown in FIG. 4 , the obtaining module 10 includes an obtaining unit 11 and a power calculating unit 12 . The obtaining unit 11 is used for obtaining the proportion of the allocated electricity consumption in the Nth period; the electricity calculation unit 12 is used for obtaining the proportion of the allocated electricity consumption in the N-1th period, the actual electricity consumption in the N-1th period, and the Calculate the control power consumption in the Nth period by assigning the proportion of power consumption and the expected power consumption set by the user.

Wherein, the proportion of distributed electricity consumption is calculated and obtained by the analysis device according to the preset air conditioner operating time and the expected electricity consumption. For example, the analysis device may include a server or a computing terminal, and perform statistics and analysis according to the expected electricity consumption set by the user and the preset air conditioner operating time, and calculate the proportion of electricity consumption allocated for each time period.

The household air conditioner of the embodiment of the present invention includes one of a one-drive-one split air conditioner and a one-drive-multiple air conditioner. Among them, one-to-one split air conditioner is an air conditioner with one indoor unit and one outdoor unit, and one-to-many air conditioner is an air conditioner in which multiple indoor units share one outdoor unit. The household air conditioner is equipped with a power detection function, which is used to calculate the actual power consumption of the air conditioner. Also, it is possible to receive a power control command from an analysis device such as a server through the Internet.

For one-to-many air conditioners, since multiple indoor units share one outdoor unit, the power consumption of the air conditioner includes the power consumption of each indoor unit and the outdoor unit. Referring to FIG. 5 , the power consumption control device 100 further includes: Summarizing module 40, the summarizing module 40 is used to obtain the actual power consumption of each indoor unit in the Nth period, and summarize the actual power consumption 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 in the period, and adjusts the frequency of the compressor according to the operating power of the air conditioner in the period when the actual power consumption is greater than the control power consumption.

Based on the apparatus for controlling the electricity consumption of the household air conditioner in the embodiments of the above aspects, the household air conditioner according to another aspect of the present invention will be described below with reference to the accompanying drawings.

FIG. 6 is a block diagram of a household air conditioner according to an embodiment of the present invention. As shown in FIG. 6 , the household air conditioner 1000 includes the power consumption control device 100 in the above aspect, and of course, includes various components of a refrigeration system such as a compressor.

The household air conditioner 1000 of the embodiment of the present invention adopts the power consumption control device 100 in the above-mentioned aspects, which can realize the expected control of power consumption, achieve the purpose of energy saving and economy, and is more conducive to the allocation of expenditures by users.

It should be noted that, in this specification, any description of a process or method described in the flowcharts or otherwise herein may be understood as representing an optional process including one or more steps for implementing a specific logical function or process. modules, segments or portions of code that execute instructions, and the scope of the preferred embodiments of the invention includes alternative implementations, which may not be in the order shown or discussed, including in a substantially simultaneous manner or in a The functions are performed in the reverse order, as would be understood by those skilled in the art to which embodiments of the invention pertain.

The logic and/or steps represented in flowcharts or otherwise described herein, for example, may be considered an ordered listing of executable instructions for implementing the logical functions, may be embodied in any computer-readable medium, For use with, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch instructions from and execute instructions from an instruction execution system, apparatus, or apparatus) or equipment. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or apparatus. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAN), Read Only Memory (RON), Erasable Editable Read Only Memory (EPRON or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDRON). In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as the paper or other medium may be optically scanned, for example, followed by editing, interpretation, or other suitable medium as necessary process to obtain the program electronically and then store it in computer memory.

It should be understood that various parts of the present invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, 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, it can be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those skilled in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the program can be stored in a computer-readable storage medium. When executed, one or a combination of the steps of the method embodiment is included.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed 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, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

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·f_NWhile controlling the frequency of the compressor to be constant, wherein k₁Is a first frequency limiting interval parameter, f_NControl power for the nth period; or,

when the operating power of the air conditioner is more than k₁·f_NAnd is less than k₂·f_NControlling 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·f_NWhen 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 is_rFor the current operating frequency of the compressor, f_OFor 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·f_NWhile controlling the frequency of the compressor to be constant, wherein k₁Is a first frequency limiting interval parameter, f_NControl power for the nth period; or,

when the operating power of the air conditioner is more than k₁·f_NAnd is less than k₂·f_NControlling 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·f_NWhen 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 is_rFor the current operating frequency of the compressor, f_OFor 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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