WO2019128069A1

WO2019128069A1 - Adaptive generator and air conditioner control method and device

Info

Publication number: WO2019128069A1
Application number: PCT/CN2018/088234
Authority: WO
Inventors: 力科学; 郑冬梅; 王秀霞; 郝连云
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-12-26
Filing date: 2018-05-24
Publication date: 2019-07-04
Also published as: CN108317695A; CN108317695B

Abstract

An adaptive generator and air conditioner control method, comprising: obtaining current output power of a generator (S101); determining allowable power of an air conditioner according to the maximum output power and the current output power of the generator (S102); and adjusting the operating frequency of a compressor of the air conditioner according to the allowable power (S103). Also disclosed is an adaptive generator control device. Whereby, the air conditioner can maximize the function of the generator while satisfying the user experience of users, so that the operating parameters of the air conditioner can be automatically adjusted.

Description

Adaptive generator air conditioner control method and device

The present application is filed on the basis of the Chinese Patent Application No. PCT Application No.

Technical field

This paper relates to the field of air conditioning technology, and in particular to an adaptive generator air conditioning control method and device.

Background technique

At present, air-conditioning products have spread to thousands of households. However, in some areas with limited power or unstable electricity, many users will connect air conditioners with generators to meet the power supply requirements of air conditioners through generators. However, generators often need to supply power to other loads such as televisions, refrigerators, etc. Therefore, when the air conditioner is connected to the generator, it will be affected by the power generation output and other loads running at the same time. In order to solve the above problems, the air conditioners that can be powered by generators in the market are mostly operated by one-button frequency limitation or fixed power consumption files for adjustment. In actual use, manual adjustment is needed, which is not convenient to use.

Summary of the invention

This paper provides an adaptive generator air conditioning control method and device, which aims to solve the problem that the power supply parameters of the generator to the air conditioner need to be artificially set. In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This generalization is not a general comment, nor is it intended to identify key/critical constituent elements or to describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the following detailed description.

According to a first aspect of the present invention, an adaptive generator air conditioner control method includes: obtaining a current output power of a generator; determining an allowable power of the air conditioner according to a maximum output power of the generator and a current output power; Allows the power to adjust the operating frequency of the air conditioner's compressor.

In an optional embodiment, adjusting the operating frequency of the compressor of the air conditioner according to the allowable power comprises: determining an allowable current of the motor according to the allowable power; and adjusting the operating frequency according to the allowable current.

In an optional embodiment, adjusting the operating frequency according to the allowable current includes: comparing the allowable current with the current operating current of the compressor; and adjusting the current operating frequency of the compressor according to the comparison result.

In an optional implementation manner, adjusting the current operating frequency of the compressor according to the comparison result, including: controlling the current operating frequency of the compressor when the allowable current is greater than the current running current; when the allowable current is less than the current When the current is running, the control reduces the current operating frequency of the compressor.

In an optional embodiment, determining the allowable current of the motor according to the allowable power comprises: calculating the allowable current according to the preset ratio of the allowable power of the power and the output voltage of the generator.

According to a second aspect of the present invention, there is also provided an adaptive generator air conditioning control apparatus, the apparatus comprising: an acquisition module for acquiring a current output power of the generator; and a determining module for determining a maximum output power of the generator The current output power determines the allowable power of the air conditioner; the adjustment module is configured to adjust the operating frequency of the air conditioner compressor according to the allowable power.

In an optional implementation, the adjustment module includes: a determination submodule for determining an allowable current of the motor according to the allowable power; and an adjustment submodule for adjusting the operating frequency according to the allowable current.

In an optional embodiment, the adjustment submodule comprises: a comparison unit for comparing the allowable current with the current running current of the compressor; and an adjustment unit for adjusting the current operating frequency of the compressor according to the comparison result.

In an optional implementation manner, the adjusting unit includes: a first adjusting subunit, configured to control a current operating frequency of the boosting compressor when the allowable current is greater than a current operating current; and a second regulating subunit, configured to When the allowable current is less than the current operating current, the control reduces the current operating frequency of the compressor.

In an optional implementation manner, the determining sub-module is specifically configured to calculate an allowable current according to a preset ratio of power of the allowable power and an output voltage of the generator.

The beneficial effects of the above technical solutions are as follows:

The adaptive generator air conditioner control method provided herein can determine the allowable power of the air conditioner according to the maximum output power of the generator and the current output power, so as to ensure the adaptive operation of the air conditioner after connecting the generator, so that the air conditioner satisfies the user experience. In the case, the role of the generator is maximized, and the automatic adjustment of the operating parameters of the air conditioner is realized.

The above general description and the following detailed description are merely exemplary and explanatory and are not limiting.

DRAWINGS

The drawings herein are incorporated in and constitute a part of the specification, and are in the

1 is a schematic flow chart 1 of an air conditioning control method according to an exemplary embodiment of the present invention;

2 is a second flowchart of an air conditioning control method of the present disclosure, according to an exemplary embodiment;

FIG. 3 is a third flowchart of the air conditioning control method of the present disclosure, according to an exemplary embodiment; FIG.

4 is a structural block diagram 1 of an air conditioning control apparatus according to an exemplary embodiment of the present invention;

FIG. 5 is a structural block diagram 2 of an air conditioning control apparatus of the present disclosure, according to an exemplary embodiment.

Detailed ways

The following description and the annexed drawings are intended to illustrate the specific embodiments herein Other embodiments may include structural, logical, electrical, process, and other changes. The examples represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included or substituted for portions and features of other embodiments. The scope of the embodiments herein includes the full scope of the claims, and all equivalents of the claims. In this context, various embodiments may be referred to individually or collectively by the term "invention," for convenience only, and if more than one invention is disclosed, it is not intended to automatically limit the scope of the application to any A single invention or inventive concept. Herein, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not require or imply any actual relationship between the entities or operations or order. Furthermore, the terms "comprises" or "comprising" or "comprising" or any other variations are intended to encompass a non-exclusive inclusion, such that a process, method, or device that includes a plurality of elements includes not only those elements but also other items not specifically listed. Elements, or elements that are inherent to such a process, method, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, or device that comprises the element. The various embodiments herein are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the method, product, and the like disclosed in the embodiments, since it corresponds to the method part disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

The control method provided in this paper is applied to air conditioners, which can be connected with the national grid to take advantage of the power supply operation of the national grid; at the same time, the air conditioner can be electrically connected with power generation equipment such as generators to meet the power generated by the generator operation. The power consumption of air conditioners.

1 is a flow chart 1 of an air conditioning control method herein, according to an exemplary embodiment.

This paper provides an adaptive generator air conditioning control method, which is applied to an air conditioner. The air conditioner can further determine the operating parameters of the air conditioner according to the operating parameters of the generator electrically connected thereto, and thereby adjust the operating state of the air conditioner; The main process steps of the method include:

S101. Obtain a current output power of the generator.

An application scenario of the embodiment is a user's home environment, in which a plurality of household appliances such as an air conditioner, a television, a refrigerator, and the like are provided in the home environment, and a plurality of household appliances can be electrically connected to the national power supply grid through the power line to be The power supplied by the power grid meets the requirements of the operation of the household appliance; in addition, the national power grid connected to the user in this embodiment has a limitation of limited time power supply. During the peak period of power consumption, such as 8:00 to 21:00, the national grid will stop to The user supplies power or intermittently supplies power. Therefore, the user is also equipped with a generator, and the generator can be connected to the home power supply grid, and the power generated by the generator operation is supplied to various household appliances such as an air conditioner, a television, a refrigerator, and the like.

In practical applications, the power output of the generator needs to meet the common power supply requirements of the various household appliances that have been activated. Various household appliances are used as the load of the generator. When the number of activated household appliances changes, the generator The load assumed is also changed. For example, when new home appliances are added, the number of activated household appliances increases, the actual power supply load of the generator increases, and when the activated household appliances are turned off, the activated household appliances are activated. The number of generators is reduced and the actual power supply load of the generator is reduced. Therefore, due to the load change of the generator, the output power of the generator needs to be adjusted in real time. In this paper, the operating parameters of the air conditioner are determined according to the change of the output power of the generator to achieve the optimal performance operation of the air conditioner under the current working conditions.

In this embodiment, the air conditioner can perform data communication with the generator, such as a local area network that is set up by a network device such as a router in the home environment, and various household appliances (including air conditioners) and generators are connected to the local area network. And interacting with the relevant operating parameter data through the local area network; therefore, in step S101, after the generator is enabled, the current output power can be determined according to the number and type of loads currently required to be powered, and the current output power is Send to the air conditioner via the network;

Alternatively, the air conditioner collects basic parameters such as a current output voltage of the generator and a current output current, and determines a current output power of the generator according to the basic parameter calculation;

Or, in another application scenario, an intelligent master control system is also provided in the home environment, and the intelligent master control system can perform data communication with various household motors and generators through the network, so that the intelligent master control system can collect the generators. The current output power parameter, the air conditioner receives the current output power parameter forwarded by the intelligent master control system; or, the intelligent master control system collects basic parameters such as the current output voltage and the current output current, and the air conditioner receives the basic parameters forwarded by the intelligent master control system, and The calculation determines the current output power of the generator.

S102. Determine an allowable power of the air conditioner according to a maximum output power of the generator and a current output power.

In this embodiment, after the model of the generator is determined, the maximum output power of the generator can also be determined, and is a fixed parameter value, which is the maximum power value that the generator of the model can output. Therefore, through the aforementioned data network, the air conditioner can also collect the maximum output power of the generator.

In this embodiment, the allowable power of the air conditioner is calculated according to the maximum output power of the generator and the current output power, and the process includes:

Obtain the maximum output power of the generator;

Calculate the difference between the maximum output power of the generator and the current output power, using the difference as the permissible power.

S103. Adjust an operating frequency of the compressor of the air conditioner according to the allowable power.

In this embodiment, in step S103, the operating frequency of the compressor of the air conditioner is adjusted according to the allowable power, and the process includes: determining an allowable current of the motor according to the allowable power; and adjusting the operating frequency according to the allowable current.

Specifically, the adjustment process of the air conditioning operating frequency can be divided into the determination of the initial operating frequency of the compressor when the air conditioner is turned on, and the adjustment of the current operating frequency of the compressor during the air conditioning operation.

Wherein, in the process of determining the initial operating frequency of the compressor when the air conditioner is turned on, the process of determining the allowable current of the motor according to the allowable power is: calculating according to the preset ratio of the allowable power and the output voltage of the generator. Get the allowable current;

For example, in one embodiment, the preset ratio is A%, the output voltage of the generator is V, and the allowable power is P, then the allowable current I can be calculated according to the following formula:

Preferably, the above calculation process generally determines the allowable current of the motor and the like according to 80% of the allowable power, leaving a power margin of 20%; in the embodiment, the preset ratio is 80% for preventing the generator. For the different generator models and their application scenarios, the actual preset ratio can also be adjusted according to the actual test data and the probability of failure.

Thus, the process of determining the operating frequency of the air conditioner compressor according to the allowable current when the air conditioner is turned on includes: after the air conditioner is turned on, the actual operating frequency of the compressor gradually rises from low to high, and the running current is proportional to the operating frequency. Therefore, it is gradually rising; in this way, the operating current is detected while the actual operating frequency rises. When the operating current reaches the permissible current, the stopping frequency rises, and the operating frequency corresponding to the current operating current is used as the target operating frequency of the air-conditioning compressor. .

The specific determination process of the air conditioning operating frequency of the control method of the present invention will be further described below in conjunction with specific embodiments.

2 is a flow chart of the air conditioning control method shown in the embodiment (1). As shown in FIG. 2, the embodiment (1) discloses a process for determining the operating frequency of the air conditioner when it is first turned on, and the steps thereof mainly include:

S201, the air conditioner is turned on;

In this embodiment, the user can input a power-on command to the air conditioner through a remote controller or a display panel, and the air conditioner receives a power-on command input by the user to start the operation of the air conditioner;

S202. The air conditioner obtains a maximum output power of the generator;

In this embodiment, the air conditioner can communicate with the generator through the home area network; the generator is a determined model, and the maximum output power is an additional parameter, so the air conditioner can communicate with the generator through data. Collecting the maximum output power of the generator;

S203. The air conditioner acquires a current output power of the generator;

S204. The air conditioner calculates and determines the allowable power of the air conditioner according to the following formula:

Allowable power = maximum output power - current output power;

S205. The air conditioner calculates and determines the allowable current of the air conditioner according to the following formula:

Allowable current = A% * permissible power / output voltage;

S206, performing an up-conversion of the air conditioner compressor, and obtaining a real-time running current;

S207. When the real-time running current reaches the allowable current, the up frequency of the compressor is stopped, and the compressor operates at the current running frequency.

In the process of adjusting the current operating frequency of the compressor during the operation of the air conditioner, the operating frequency is adjusted according to the allowable current, including: comparing the allowable current with the current running current of the compressor; and adjusting the current current of the compressor according to the comparison result Operating frequency.

In this embodiment, according to the comparison result, adjusting the current operating frequency of the compressor includes:

When the allowable current is greater than the current operating current, the current operating frequency of the compressor is controlled to be increased;

When the allowable current is less than the current operating current, the control reduces the current operating frequency of the compressor.

3 is a flow chart of the air conditioning control method of the present invention shown in Embodiment (2). As shown in FIG. 3, in the air conditioning operation process, the actual load of the generator changes, but The process of further adjusting the operating frequency of the air conditioner, the steps of which mainly include:

S301. The air conditioner obtains a maximum output power of the generator;

S302, the air conditioner obtains the current output power of the generator

S303. The air conditioner calculates and determines the allowable power of the air conditioner according to the following formula:

Allowable power = maximum output power - current output power;

S304. The air conditioner calculates and determines the allowable current of the air conditioner according to the following formula:

Allowable current = A% * permissible power / output voltage;

S305. Obtain a current operating current of the compressor.

S306, comparing the allowable current and the current operating current, when the allowable current is greater than the current operating current, step S307 is performed, when the allowable current is less than the current operating current, step S308 is performed;

S307. Control a current operating frequency of the compressor;

S308. Control reduces the current operating frequency of the compressor.

FIG. 4 is a structural block diagram 1 of an air conditioning control apparatus of the present disclosure, according to an exemplary embodiment.

As shown in FIG. 4, the present invention also provides an adaptive generator air conditioner control device, which is applied to an air conditioner, and the air conditioner can further determine an operating parameter of the air conditioner according to an operating parameter of the generator electrically connected thereto, and adjust the air conditioner. The operating state; specifically, the control device 400 includes:

An obtaining module 410, configured to acquire a current output power of the generator;

a determining module 420, configured to determine an allowable power of the air conditioner according to a maximum output power of the generator and a current output power;

The adjustment module 430 is configured to adjust the operating frequency of the compressor of the air conditioner according to the allowable power.

The adaptive generator air conditioner control device provided herein can determine the allowable power of the air conditioner according to the maximum output power of the generator and the current output power, so as to ensure the adaptive operation of the air conditioner after connecting the generator, so that the air conditioner satisfies the user experience. In the case, the role of the generator is maximized, and the automatic adjustment of the operating parameters of the air conditioner is realized.

As shown in FIG. 5, an adaptive generator air conditioner control apparatus is further provided. The control apparatus 500 includes an acquisition module 510, a determination module 520, and an adjustment module 530, wherein the acquisition module 410 can obtain the current output power of the generator. The determining module 420 determines the allowable power of the air conditioner according to the maximum output power of the generator and the current output power acquired by the obtaining module 410. Thus, the adjusting module 430 can adjust the compressor of the air conditioner according to the allowable power determined by the determining module 420. Operating frequency.

In this embodiment, the adjustment module 530 includes:

Determining a sub-module 531 for determining an allowable current of the motor according to the allowable power;

The adjustment sub-module 532 is configured to adjust the operating frequency according to the allowable current.

In this embodiment, the adjustment submodule includes:

a comparison unit for comparing the allowable current with the current operating current of the compressor;

The adjusting unit is configured to adjust the current operating frequency of the compressor according to the comparison result.

In this embodiment, the adjusting unit includes:

a first regulating subunit, configured to control a current operating frequency of the compressor when the allowable current is greater than a current operating current;

The second regulating subunit is configured to control to lower the current operating frequency of the compressor when the allowable current is less than the current operating current.

In this embodiment, the determining sub-module is specifically configured to calculate an allowable current according to a preset ratio of power of the allowable power and an output voltage of the generator.

It should be understood that the present invention is not limited to the details and the modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the accompanying claims.

Claims

An adaptive generator air conditioner control method, comprising:

Obtaining the current output power of the generator;

Determining an allowable power of the air conditioner according to a maximum output power of the generator and the current output power;

The operating frequency of the compressor of the air conditioner is adjusted according to the allowable power.
The control method according to claim 1, wherein the adjusting the operating frequency of the compressor of the air conditioner according to the allowable power comprises:

Determining an allowable current of the motor according to the allowable power;

The operating frequency is adjusted based on the allowable current.
The control method according to claim 2, wherein the adjusting the operating frequency according to the allowable current comprises:

Comparing the allowable current with a current operating current of the compressor;

Based on the comparison, the current operating frequency of the compressor is adjusted.
The control method according to claim 3, wherein the adjusting the current operating frequency of the compressor according to the comparison result comprises:

Controlling to increase the current operating frequency of the compressor when the allowable current is greater than the current operating current;

The control reduces the current operating frequency of the compressor when the allowable current is less than the current operating current.
The control method according to claim 2, 3 or 4, wherein the determining the allowable current of the motor according to the allowable power comprises:

The allowable current is calculated based on a preset ratio of power of the allowable power and an output voltage of the generator.
An adaptive generator air conditioner control device, characterized in that the device comprises:

Obtaining a module for acquiring a current output power of the generator;

a determining module, configured to determine an allowable power of the air conditioner according to a maximum output power of the generator and the current output power;

And an adjustment module, configured to adjust an operating frequency of the compressor of the air conditioner according to the allowable power.
The control device according to claim 6, wherein the adjustment module comprises:

Determining a submodule for determining an allowable current of the motor according to the allowable power;

The adjustment submodule is configured to adjust the operating frequency according to the allowable current.
The control device according to claim 7, wherein the adjustment submodule comprises:

a comparison unit for comparing the allowable current with a current operating current of the compressor;

And an adjustment unit, configured to adjust a current operating frequency of the compressor according to the comparison result.
The control device according to claim 8, wherein the adjustment unit comprises:

a first adjusting subunit, configured to control to increase the current operating frequency of the compressor when the allowable current is greater than the current operating current;

a second regulating subunit, configured to control to decrease the current operating frequency of the compressor when the allowable current is less than the current operating current.
The control device according to claim 7, 8 or 9, wherein the determining sub-module is specifically configured to calculate a power according to a preset ratio of power of the allowable power and an output voltage of the generator State the current.