KR20120012024A - A control method of an air conditioner - Google Patents

Abstract

PURPOSE: An air conditioner control method is provided to reduce power consumption and control an indoor temperature without a heat exchange with refrigerant. CONSTITUTION: An air conditioner control method is as follows. Information related to an electric charge is acknowledged(S702). Air in a first indoor space is supplied to a second indoor space to reduce a temperature difference between the first and second indoor spaces among a plurality of inner spaces based on the acknowledged electric charge. A set-up temperature of the second indoor space is set based on the recognized electric charge and user set-up temperature.

Description

A control method of an air conditioner

The present invention relates to a control method of an air conditioner, and in particular, is installed in a plurality of indoor spaces to perform temperature control and ventilation of each indoor space, which can flexibly control power consumption according to the level of electric power rates. It relates to a control method of an air conditioner.

Electric power for the operation of electrical appliances such as home appliances used in homes or office equipment used in offices is generally supplied through a power plant operated by KEPCO, a transmission line, and a wiring line. It is characteristic.

It has the characteristics of a central power source, not a distributed power source, a radial structure that spreads from the center to the periphery, and is characterized by a unidirectional supplier center rather than a consumer center.

In addition, the technology base is analog or electromechanical, there is a problem that must be restored manually in case of an accident, and the equipment must also be restored manually.

The price information for electricity was not only available in real time, but only limitedly through the power exchange, and since the price system is also a de facto fixed price system, incentives such as incentives to consumers through price changes cannot be used. There was a problem.

In order to solve these problems and improve energy efficiency, research on smart grids (intelligent power grids) has been actively conducted recently.

The smart grid refers to the next generation power system and its management system that are realized through the convergence and complex of modern power technology and information communication technology.

As mentioned above, the current grid is a centralized, producer-controlled, vertical, centralized network, whereas the smart grid is less focused on suppliers and horizontal, collaborative to enable interaction between consumers and suppliers. It is an enemy, decentralized network.

The smart grid is sometimes called the "energy internet" because all electrical devices, power storage devices and distributed power supplies are networked to enable interaction between consumers and suppliers.

On the other hand, in order to realize such a smart grid from the perspective of a power consumer such as a home or a building, it is necessary to bidirectionally communicate with a power supply source and power information, instead of unilaterally receiving power from an individual home appliance and a network to which a plurality of home appliances are connected. And the need for new devices for this two-way communication.

The present invention is installed in a plurality of indoor space to perform the temperature control and ventilation of each indoor space, to provide a control method of the air conditioner that can save the power bill by elastically controlling the power consumption according to the level of the power bill Its purpose is to.

The present invention for achieving this object, the step of recognizing the power bill information; The air provided in the air providing step of providing the air of the first indoor space to the second indoor space in order to reduce the temperature difference between the first indoor space and the second indoor space of the plurality of indoor spaces based on the recognized power rate information It provides a control method of the harmonic.

And setting a target temperature of the second indoor space based on a user set temperature and the recognized power rate information.

When the air conditioner performs the cooling operation, the air providing step is characterized in that for supplying air in the first indoor space having a lower temperature than the second indoor space to the second indoor space.

The air providing step is characterized in that to provide the air of the first indoor space having the lowest temperature of the plurality of indoor spaces to the second indoor space having the highest temperature of the plurality of indoor spaces.

When the air conditioner performs the heating operation, the air providing step is characterized in that for supplying the air in the first indoor space having a higher temperature than the second indoor space to the second indoor space.

The air providing step is characterized in that to provide the air of the first indoor space having the highest temperature of the plurality of indoor spaces to the second indoor space having the lowest temperature of the plurality of indoor spaces.

The air providing step of providing air from the first indoor space to the second indoor space; Recognizing a temperature of the first indoor space; Recognizing a target temperature of the second indoor space; And providing air of the first indoor space to the second indoor space based on the recognized temperature of the first indoor space and the target temperature of the second indoor space.

When the air conditioner is cooling, the air providing step is characterized in that to provide the air in the first indoor space having a room temperature lower than the target temperature of the second indoor space to the second indoor space.

When the air conditioner is heating, the air providing step is characterized in that to provide the air in the first indoor space having a room temperature higher than the target temperature of the second indoor space to the second indoor space.

Determining whether the comfort level of the first indoor space deviates from a predetermined range;

And providing air outside the building to the first indoor space when the comfort level of the first indoor space deviates from a predetermined range.

Determining the comfort level of the first indoor space is characterized in that it is determined whether the amount of humidity of the indoor air is more than a predetermined level.

Determining the comfort level of the first indoor space is characterized in that the step of determining whether the amount of carbon dioxide in the indoor air is more than a predetermined level.

The air discharge step of discharging the air in the second indoor space to the outside of the building to control the temperature of the second indoor space receiving the air of the first indoor space, characterized in that it further comprises.

When the air exchange stop command of the user is input, characterized in that it further comprises the step of stopping the air supply from the first indoor space to the second indoor space.

Sensing a temperature of the first indoor space and the second indoor space; And calculating an average temperature of the first indoor space and the second indoor space, and in the case of the current cooling mode, supplying air from the first indoor space to the second indoor space is performed by the first indoor space. When the temperature of the indoor space is lower than the average temperature, the air providing step is performed, and in the current heating mode, supplying air from the first indoor space to the second indoor space is performed in the first indoor space. The air providing step is performed when the temperature is higher than the average temperature.

Discharging the indoor air of the first indoor space to the outside of the building; and in the current cooling mode, when the temperature of the second indoor space is higher than the average temperature, discharged from the first indoor space to the outside of the building. Reducing the displacement of indoor air; When the current heating mode, the temperature of the second indoor space is lower than the average temperature, characterized in that it further comprises the step of reducing the exhaust air volume of the indoor air discharged from the first indoor space to the outside of the building.

A leveling step of determining a level of a current power rate; Controlling the driving to be performed according to a user setting when the power rate is at a first level; adjusting a target control temperature of the second indoor space when the level of the power rate is at a second level; If the level of the power bill is a third level, characterized in that it comprises the step of providing the air providing step of providing air in the first indoor space to the second indoor space.

The adjusting of the target temperature of the second indoor space may include adjusting the target control temperature to be higher than a user set temperature in the cooling mode.

The adjusting of the target temperature of the second indoor space may include adjusting the target control temperature to be lower than a user set temperature in the heating mode.

Detecting a temperature of a plurality of indoor spaces including the first indoor space and the second indoor space when the level of the power rate is the fourth level; Comprising a step of calculating the average temperature of all the detected indoor space, the current cooling mode, the temperature of the first indoor space is lower than the average temperature, the temperature of the second indoor space is higher than the average temperature Performing the air providing step of providing air in the first indoor space to the second indoor space,

In the current heating mode, when the temperature of the first indoor space is higher than the average temperature, and the temperature of the second indoor space is lower than the average temperature, providing the air of the first indoor space to the second indoor space Characterized in that performing the air providing step.

The air conditioner includes a compressor, an outdoor unit, a plurality of indoor units, a ventilation device,

When the level of the power rate is the fourth level, the ventilation device is driven to provide air in the first indoor space to the second indoor space, and at least one of the compressor, the outdoor unit, or the plurality of indoor units is provided. Reducing power consumption by stopping.

Recognizing the power rate information is characterized in that it comprises the power peak rate.

In addition, the present invention comprises the steps of (A) recognizing power bill information; (B) A control method of an air conditioner is provided, wherein a target control temperature is controlled in consideration of a user set temperature and the recognized power charge information.

When the current operation mode is the cooling mode, the step (B) allows the target control temperature of the indoor space to be controlled to a predetermined temperature higher than the user set temperature. When the current operation mode is the heating mode, the step (B) is the indoor space. The target control temperature of the user set temperature is characterized in that the predetermined temperature is controlled to be lower.

(C) further comprising the step of controlling the fan of the indoor unit to increase the amount of air discharged from the indoor unit than the present.

According to the present invention, the power rate is leveled for each level according to the power rate information. If the power rate is relatively low, the temperature control and ventilation operation of the indoor space is performed as set by the user, and the power rate is relative. In case of being expensive, there is an advantage that temperature can be controlled in the indoor space while reducing power consumption by allowing air to move between the indoor spaces.

In particular, if cooling or heating is required, but the electric charge is high, air is drawn from the indoor space where the cooling or heating should be performed, and the temperature of the indoor space can be controlled without heat exchange with the refrigerant. There is an advantage that it can.

1 is a schematic diagram of a smart grid according to the present invention.
2 is a schematic diagram of an air conditioner according to the present invention.
3 is a control block diagram of an air conditioner according to the present invention.
4 to 6 are air flow diagrams of the air conditioner according to the present invention.
7 to 12 are control flowcharts of the air conditioner according to the present invention.
FIG. 13 is a graph showing a change in power rate with time. FIG.

Hereinafter, with reference to the accompanying drawings will be described for the preferred embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a schematic diagram of a smart grid, which includes a power plant that generates power through thermal, nuclear, or hydro, a solar power plant using wind or wind power as renewable energy, and a wind power plant. .

In addition, the thermal power plant or nuclear power plant or hydroelectric power station transmits power to a power station through a transmission line, and the power station sends electricity to a substation so that the electricity is distributed to a demand destination such as a home or an office.

The electricity produced by the renewable energy is also sent to substations to be distributed to each customer. The electricity transmitted from the substation is distributed to the office or each household via the power storage device.

Even in homes that use the Home Area Network (HAN), it is possible to supply electricity by producing electricity by itself through fuel cells mounted on solar power or PHEV (Plug-in Hybrid Electric Vehicle). The remaining electricity can also be sold outside.

In addition, a smart meter is installed in the office or home to identify the real-time power and electricity bills used by each customer. Through this, the user is aware of the amount of electricity and the electricity bill currently used, and according to the situation, the power consumption or the electricity bill can be determined according to the situation. Measures can be taken to reduce it.

On the other hand, since the power plant, power station, storage device and the source of demand are bidirectional communication, only the unilaterally receive electricity from the source of demand, and notify the storage, power station, and power plant of the demand source to produce electricity according to the situation of the source of demand. Electric distribution can be performed.

Meanwhile, in the smart grid, an energy management system (EMS) that is responsible for real-time power management and real-time prediction of power consumption and a metering infrastructure (AMI) for measuring power consumption in real time are provided. It plays a pivotal role. Wherein the smart meter forms part of the metrology infrastructure.

The measurement infrastructure under the smart grid is a foundation technology that integrates consumers based on open architecture, enabling consumers to efficiently use electricity, and providing power providers with the ability to operate systems efficiently by detecting system problems. to provide.

Here, the open architecture, unlike a general communication network, refers to a standard that allows all electric devices to be connected to each other regardless of which manufacturer the electric device is manufactured in a smart grid system.

Thus, the metrology infrastructure or smart meter used in the smart grid enables a consumer friendly efficiency concept such as "Prices to Devices."

In other words, the real-time price signal of the power market is relayed through the energy management device (EMS) and smart meter installed in each home, and the energy management device (EMS) and the smart meter communicate with each electric product and control the user. By looking at the device (EMS) or the smart meter, the power information of each electric product is recognized and power information processing such as power consumption or electric charge limit setting can be performed on the basis of this, thereby saving energy and cost.

Control of each electrical appliance may be performed by communication between the energy management device (EMS) and the smart meter.

The energy management device (EMS) is a local energy management device (Local EMS) used in the office or home, and the information collected from the local energy management device (EMS) by bidirectional communication with the local energy management device (Local EMS) It is preferably composed of a central EMS for processing.

The smart grid enables real-time communication of power information between suppliers and consumers, enabling "real-time grid response" to be realized, thereby reducing the high cost of meeting peak demand.

2 shows an air conditioner 10 installed in a building connected to a smart grid, and the air conditioner 10 is controlled to operate in conjunction with power charge information.

The air conditioner 10 may receive power information such as power and power rates from the outside, and may measure the power consumption and power rates in the home in real time, and the smart meter 20. And an energy management device (EMS) 30 in communication with one or more indoor units or ventilators and controlling their operation.

Here, the energy management device (EMS) 30 is provided in the form of a terminal having a display unit for displaying the current power consumption state and the external environment (temperature, humidity), and an input unit that can be operated by the user. desirable.

The energy management device (EMS) 30 is connected to the indoor unit 100 and the ventilation device 200 installed in the plurality of indoor spaces (S) through the network network inside the building and communicates with them in both directions, and It has a role to control.

Communication inside the building can be either wireless or via a wire such as a PLC. In addition, the indoor unit 100 and the ventilator 200 disposed in a specific indoor space S may also be connected to the indoor unit 100 and the ventilator 200 arranged in another indoor space S to communicate with each other. It is desirable to arrange so as to lose weight.

The power supply source 50 of the building is a system power source 51 capable of supplying electric power by general power generation equipment (fire power, nuclear power, hydropower), or renewable energy 52 such as a solar power plant or a wind power plant. )

 In addition, an auxiliary power source 53 such as a fuel cell provided in a building may be another power supply source.

Typically, the power supply 50 is connected to the smart meter 20 and the energy management device (EMS) 30 to provide power information to them, and the information provided in this way is controlled by the air conditioner 10. It is used as basic information for.

Each indoor space S1 to S4 inside the building exchanges air between the indoor unit 100 for controlling the temperature of the indoor space through heat exchange with a refrigerant, and the outdoor and indoor spaces S1 to S4, or a specific indoor space. The ventilation device 200 is provided to move the air to another indoor space.

An air duct 300 connected to the ventilation device 100 provided in the indoor spaces S1 to S4 is provided in the building, and the air duct includes a first air duct for guiding outdoor air in the direction of the indoor space. 310 and a second air duct 320 for guiding indoor air to the outside.

In addition, a supply duct 330 is provided between the first air duct 310 and each of the ventilation devices 200 to guide the air inside the first air duct 310 to the ventilation device 200.

At the inlet end of the first air duct 310 is provided an inlet control device 311 that can selectively block the inflow of outdoor air. In addition, the supply duct 330 is also provided with a supply control device 331 that can selectively control the communication with the first air duct (310).

A discharge duct 340 is provided between the second air duct 320 and the respective ventilation devices 200 to guide the air discharged from the ventilation device 200 to the second air duct 320. A connection duct 350 is provided between the discharge duct 340 and the first air duct 310 to connect them.

The outlet end of the second air duct 320 is provided with an outlet control device 321 that can selectively block the outflow of air to the outside.

In addition, between the discharge duct 340 and the connection duct 350, the air discharged from the ventilation device 200 can move in the direction of the first air duct 310 or the second air duct 320. A flow path switching device 351 for determining the flow direction is provided.

The flow path switching device 351 serves to guide the air discharged from the ventilation device 200 to move in the direction of the first air duct 310 or the second air duct 320, as well as in both directions. It also plays a role in blocking.

Therefore, by the opening and closing action of the supply control device 331 and the flow path switching device 351 and the operation of the ventilation device 200 in the state in which the inlet control device 311 and the outlet control device 312 is closed. Air in a specific indoor space may be moved to another indoor space to allow heat exchange between the air.

On the other hand, the inside of the ventilator 200, the heat exchanger 210, the intake fan 220 and the exhaust fan 230, and the intake valve 240 for selectively controlling the flow of intake air, and the exhaust air Exhaust valve 250 for selectively adjusting the flow of is provided.

When the suction fan 220 is operated, the air passing through the supply duct 330 flows into the ventilator 200 and then passes through the inside or outside of the heat exchanger 210 and the suction fan 220. It is supplied to the indoor space through).

In addition, when the discharge fan 230 operates, after the air inside the indoor space flows into the ventilator 200, the discharge fan 230 passes through the inside or the outside of the heat exchanger 220. Go to the outdoor or other indoor space through).

3 is a control block diagram showing a connection state between the air conditioner 10 and the power supply source 50, the smart meter 20, and the energy management device (EMS) 30 according to the present invention. .

As described above, the power supply source 50 is composed of the grid power source 51, the renewable energy 52, and the auxiliary power source 53, and under the control of the energy management device 30. Power is supplied to the air conditioner 100.

The air conditioner 10 includes the indoor unit 100 installed in each indoor space, the ventilation device 200, and the outdoor unit 400.

Here, the indoor fan 100 is provided with an indoor fan 102 for guiding the air exchanged with the indoor heat exchanger 101 to the indoor space. Here, the indoor fan 102 is preferably the rotation speed is adjusted to adjust the air volume.

As described above, the ventilation device 200 includes the total heat exchanger 210, the intake fan 220, the exhaust fan 230, the intake valve 240, and the exhaust valve 250.

The outdoor unit 400 includes a compressor 410 for compressing a refrigerant, an outdoor heat exchanger 420, and an outdoor fan 430 for guiding air to an outdoor heat exchanger.

In the indoor unit 100, the rotation speed of the indoor fan 120 is adjusted according to the adjustment of the power supply to adjust the air volume.

In the case of the ventilation device 200, the inlet fan 220 and the exhaust fan 230 are introduced into each indoor space S according to the on / off and rotational speeds of the intake fan 220 and the exhaust fan 230. The amount of air flowing out from the air is controlled.

In the outdoor unit 400, the supply amount of the refrigerant in the compressor 420 is adjusted according to the power supply amount, and the rotation speed of the outdoor fan 430 is adjusted to condense the refrigerant in the outdoor heat exchanger 410. Is adjusted.

Figure 4 shows the flow of air in each indoor space by the operation of the air conditioner of the present invention.

When the electric charge is low, the cooling or heating operation of the indoor unit constituting the air conditioner may be performed, and the outdoor air and the indoor air may be exchanged to perform a ventilation function.

Specifically, the warm air comes out of the indoor unit 100 during the heating operation, and the cold air comes out of the indoor unit 100 during the cooling operation so that the internal temperature of the indoor spaces S1 to S4 is changed.

On the other hand, when the intake fan 220 is turned on in the ventilator 200 to operate, the outdoor air enters the inside of the ventilator 200 through the first air duct 310 and the indoor space ( Flows into S1 ~ S4).

In addition, when the exhaust fan 230 is also turned on to operate, after the air inside the indoor spaces S1 to S4 passes through the ventilation device 200, the exhaust duct 340 and the second air. Guided by the duct 320 is discharged to the outdoors.

In this case, the flow path switching device 351 only prevents the air discharged from the room to flow in the direction of the connection duct 350 only flows to the second air duct 320. Therefore, the air discharged from the indoor spaces S1 to S4 is prevented from entering the first air duct 310.

 FIG. 5 illustrates a case where temperature control of an indoor space is performed by moving air from a specific indoor space (first indoor space) to another indoor space (second indoor space) when the electric charge exceeds a predetermined standard. 6 illustrates an operation of introducing outdoor air into the first indoor space S1 or releasing a part of the indoor air in the second indoor space S3 in order to increase the comfort level of the indoor space in the situation as shown in FIG. 5. One, the specific control flow for this operation will be described with the control flow diagram shown in Figs.

Hereinafter, an indoor space for providing air is referred to as a first indoor space, and an indoor space that is subject to temperature control is referred to as a second indoor space through a control operation such as receiving air from the first indoor space.

As shown in FIG. 7, it is first determined whether a smart grid function for controlling power consumption is set in response to the change of the electric charge for the building (S701).

If the smart grid function is not set, the air conditioner is operated as set by the user (S708).

When the smart grid function is set, the power rate information received from the outside is received to recognize such power rate information (S702). This is done by the smart meter (see FIG. 2, 20) or the energy management device (EMS) (see FIG. 2, 30).

Then, the power charge leveling is performed to what level the current power charge is (S703). As shown in FIG. 13, the power rate changes with time, and the level of the power rate is defined according to the change, and the operation of the air conditioner according to the present invention is controlled according to the defined level. It can be.

In the present invention, according to the level of power rates, the level of power rates are divided from level 1 to level 4, in the case of level 1, the power rate is defined as the cheapest section, and the level 4 is defined as the most expensive section. However, it is not limited to this.

First, as in step S703, the power rate leveling is performed, and when it is determined that the power rate is the lowest first level, the air conditioner operates as set by the user (S708). That is, the heating and cooling operation or the ventilation operation is performed with the target temperature of the indoor space set by the user in mind.

On the other hand, by determining the current level of the power rate, it may be determined whether the level of the power rate is the second level to the fourth level (S705 to 707).

As shown in FIG. 8, when it is determined that the level of the current electric charge is the second level, first, the temperature set by the user is recognized in the second indoor space (S801).

In operation S802, it is determined whether the operation mode by the indoor unit and the outdoor unit is the cooling mode or the heating mode in the second indoor space.

If it is determined that the operation mode in the second indoor space is the cooling mode, the target control temperature of the second indoor space is set to be higher than the user's set temperature by a predetermined temperature (S803), and the rotation speed of the indoor fan installed in the indoor unit is set. Adjust the air volume by adjusting (S804). Here, the target control temperature is high, but by increasing the amount of air, the target temperature rise is partially compensated for.

In other words, if the temperature set by the user is 23 degrees Celsius, the target control temperature in a specific indoor space is 24 degrees or 23.5 degrees, because this degree of temperature control can satisfy the user's needs to some extent.

In addition, due to the adjustment of the target control temperature, the operation rate of the compressor may be reduced, thereby reducing the power consumption, thereby reducing the electric charge.

Meanwhile, when the operation mode of the second indoor space is the heating mode, the target control temperature of the indoor space is set lower than the user's set temperature by a predetermined temperature (S805), and the rotation speed of the indoor fan installed in the indoor unit is adjusted. The air volume is adjusted (S806). In this case, as opposed to the cooling mode, the target temperature is lowered, but the target temperature decrease can be partially compensated for by increasing the air volume.

In other words, if the temperature set by the user is 26 degrees Celsius, the target control temperature is set to 25 degrees Celsius or 25.5 degrees Celsius in a specific indoor space. The user is unlikely to react sensitively to this temperature difference, but saves on electricity charges. This control is done because it can.

When the target control temperature is adjusted as described above, but it is determined that the ventilation operation is necessary due to the lack of comfort of the second indoor space, as shown in FIG. 4, the intake fan (see FIG. 4, 200) 220 and the exhaust fan 230 is turned on to send the indoor air to the outside, and the ventilation operation is performed by introducing the outdoor air into the indoor (S808).

Here, the comfort level is related to the humidity or the amount of carbon dioxide in the second indoor space, and it is determined whether the humidity deviates from the predetermined range or the amount of carbon dioxide is more than the predetermined range, and if so, ventilates the second indoor space. To drive.

In FIG. 7, when the level of the current electricity rate is determined to be the third level, since the electricity rate is considerably high, the operation of the indoor unit and the outdoor unit in all indoor spaces is somewhat stopped, and the indoor space of each indoor space is exchanged through air exchange between the indoor spaces. There is a need to adjust the temperature.

As a result, it is possible to save power bills while performing temperature control in each indoor space.

Specifically, as shown in FIG. 9, first, it is determined whether a temperature of a specific indoor space (first indoor space) and a temperature of another indoor space (second indoor space) differ by more than a predetermined temperature (S901). .

If the temperature difference between a specific indoor space (second indoor space) and another indoor space (first indoor space) is not large, it is not necessary to move the air between the indoor spaces. Operation to improve the comfort of the air is performed (S902).

However, if there is a difference in temperature between a specific indoor space (second indoor space) and another indoor space (first indoor space), first of all, the first indoor space that is different from the current specific indoor space (second indoor space) In operation S903, it is determined whether the operation mode is the heating mode or the cooling mode.

In FIG. 5, a specific indoor space (second indoor space) is referred to as S3, and another indoor space (first indoor space) is referred to as S1.

As a result of the determination, if it is determined that the present cooling mode is present, the indoor space (first indoor space) lower than a predetermined temperature (see FIG. 5, S1) is lower than the temperature of the specific indoor space (second indoor space) (see FIG. 5 and S3). After intake of the indoor air, the intake air is supplied to the specific indoor space (second indoor space) S3.

Here, the air in the indoor space (first indoor space) S1 having the lowest temperature may be moved to the indoor space (second indoor space) S3 having the highest indoor temperature.

In addition, the air of the indoor space (first indoor space) S1 lower or higher than a predetermined temperature of the specific indoor space (second indoor space) S3 by a predetermined temperature is supplied to the specific indoor space (second indoor space). (S3) can be moved.

At this time, the indoor unit in the specific indoor space (second indoor space) (see Fig. 5, S3) and the indoor unit in the other indoor space (first indoor space) (see Fig. 5, S1) are stopped or intermittently. It is preferable to operate and stop or intermittently operate the compressor of the outdoor unit connected to these indoor units.

In FIG. 5, the inlet control device 311 of the first air duct 310 and the outlet control device 321 of the second air duct 320 have a closing action to block the indoor space from the outside. .

In addition, the intake valve 240 of the ventilation device 200 installed in the specific indoor space (second indoor space) S3 and the ventilation device 200 installed in the specific indoor space (second indoor space) S3. The intake fan of the ventilation device 200 is turned on while the supply control device 331 of the supply duct 330 to be connected is opened.

At the same time, the exhaust valve 250 of the ventilator 200 installed in the other indoor space (first indoor space) S1 is opened.

Flow path switching provided in the connection duct 350 provided between the discharge duct 340 and the first supply duct 310 connected to the ventilation device 200 installed in the other indoor space (first indoor space) (S1). The device 351 also operates to allow air from the ventilator 200 to flow in the direction of the first air duct 310.

In this state, when the exhaust fan 230 is turned on, air in the other indoor space (first indoor space) S1 moves under the guidance of the first air duct 310 to move the specific indoor space. It moves to space (2nd indoor space) S3.

In FIG. 5, the temperature of a specific indoor space (second indoor space) S3 is 27 degrees Celsius, and the indoor temperature of another indoor space (first indoor space) S1 is 21 degrees. The temperature of the specific indoor space (second indoor space) S3 will be lowered.

By this operation, steps S904 and S905 are performed in FIG. 9.

On the other hand, it is determined whether the comfort of the indoor air in the indoor space (first indoor space) that is intake, that is, the space of S1 in FIG. 5 or 6 is reduced or the pollution degree is increased, so that it is necessary to supply outdoor air (S906). ).

That is, it is determined whether the humidity is too high or low, or whether the amount of carbon dioxide exceeds a predetermined range.

Thus, when outdoor air is supplied to the indoor space (first indoor space) that is being inhaled, the inlet control device (see Fig. 6, 311) of the first air duct (Fig. 6, 310) is opened to some extent. Then, the intake valves (see FIGS. 6 and 240) of the ventilator (see FIG. 6 and 200) are opened, and the intake fan (see FIGS. 6 and 220) of the ventilator (see FIG. 6 and 200) is turned on. Inflow outdoor air.

According to such a control operation, outdoor air is introduced into the indoor space (first indoor space) that is indicated by S1 as indicated by a dotted line in FIG. 6, thereby improving comfort in the indoor space.

However, when the inlet control device 311 of the first air duct 310 is opened and the outdoor air is introduced, the outdoor air is discharged from the indoor space (the first indoor space) indicated by S1, and the indoor indicated by S3. Since it can be mixed with the air moving to the space (second indoor space), it is necessary to open the inlet control device 311 intermittently to minimize the mixing of air.

When heat exchange occurs between the air introduced into the ventilator 200 and the air discharged from the ventilator 200, the heat exchange may occur because the temperature of the discharged air may change. It is necessary to avoid.

Thus, the air discharged from the ventilator 200 and the air introduced into the ventilator 200 do not flow into the heat exchanger 210, but move by bypassing the outside of the heat exchanger 210. But each move along an isolated channel so as not to mix with each other.

As shown in FIG. 10, it is determined whether the air of the specific indoor space (second indoor space) (see FIG. 6, S3) receiving the intake air needs to be discharged to the outside (S1001).

That is, it is determined whether there is a necessity to discharge the high temperature air existing in the specific indoor space (second indoor space) (see Fig. 6, S3) to the outside to promote a decrease in indoor temperature or to increase the comfort of indoor air. It is.

Thus, if it is determined that there is a need to discharge the indoor air to the outdoors, the discharge operation is performed to discharge the indoor air to the outdoor (S1002).

Specifically, as shown in FIG. 6, the air outlet in the indoor space (first indoor space) indicated by S1 is opened by opening the outlet control device 321 of the second air duct 320. Opening the exhaust valve 250 in the ventilation device 200 provided in the specific indoor space (second indoor space) (S3) receiving the, and operates the exhaust fan 230 in the on state.

In addition, the flow path switching device 351 operates to prevent air from moving to the connection duct 350 and guides the movement to the discharge duct 340. Therefore, the air discharged from the specific indoor space (second indoor space) S3 is discharged to the outdoor space after moving to the second air duct 320.

When the indoor temperature of the specific indoor space (second indoor space) (refer to FIG. 5 or 6, S3) supplied with air reaches a target temperature through the control operation as described above, the specific indoor space (second indoor space) Air supply to the space (see FIG. 5 or 6, S3).

That is, the air intake operation is stopped in another indoor space (first indoor space) (see Fig. 5 or 6, S1), and the intake air is discharged to the specific indoor space (second indoor space) (Fig. 5 or 6). , See S3).

On the other hand, if it is determined in the heating mode in step S903 of Figure 9, as shown in Figure 11, the air in the indoor space higher than the temperature of the specific indoor space (second indoor space) a predetermined temperature (S1101), intake Supplied air to the specific indoor space (second indoor space) (S1102).

Since steps S1103 to S1108 are the same as those in FIGS. 9 and 10, detailed descriptions thereof will be omitted.

If it is determined in step S707 of FIG. 7 that the current power level is the fourth step, as shown in FIG. 11, the average temperature of all the indoor spaces in which the air conditioners are installed is calculated (S1201).

That is, if the temperature of each indoor space in Figure 5 is recognized 21 degrees, 24 degrees, 27 degrees, 25 degrees Celsius, the average temperature is calculated. In this case, the average temperature is 24.25 degrees Celsius.

In this state, it is determined whether the current operation mode for each indoor space is the cooling mode or the heating mode (S1202).

In the present cooling mode, the air in the indoor space (first indoor space) having a lower temperature than the average temperature is supplied to the indoor space (second indoor space) having a higher temperature than the average temperature (S1203).

At this time, it is preferable that the operation of the indoor unit and the outdoor unit linked thereto in each indoor space is maintained in a stopped state.

That is, when the power rate is maximum, that is, when the power rate is peak, it is preferable to minimize the power consumption by stopping the driving of the compressor and the outdoor fan and the indoor fan of the indoor unit. This is to perform temperature control in each indoor space by inducing the movement of air between each indoor space by operating a small ventilation device.

On the other hand, in the case of providing air in a low temperature indoor space (first indoor space) to a relatively high indoor space (second indoor space), the outdoor exhaust in the low temperature indoor space (first indoor space) If so, the exhaust volume is reduced or the exhaust is stopped (S1204).

In the case of outdoor exhaust, it is to increase the comfort level of the indoor space.In this case, the temperature control of the high temperature indoor space (first indoor space) is prioritized rather than the increased comfort level. It is necessary to minimize the outdoor exhaust there.

Referring to the above control with reference to Figure 5, when the current average temperature is 24.25 degrees Celsius, to supply the air in the indoor space (S1) significantly lower than the average temperature to the indoor space (S3, S4) that is higher than this temperature Means that.

On the other hand, if it is determined in the heating mode in step S1202, the air in the indoor space (first indoor space) with a higher temperature than the average temperature is supplied to the indoor space (second indoor space) lower than the average temperature (S1205). .

 At this time, it is preferable that the operation of the indoor unit and the outdoor unit linked thereto in each indoor space is maintained at a stop state, and the reason is as described above.

When the air in the low temperature indoor space (the first indoor space) is supplied to the relatively low temperature indoor space (the second indoor space), the exhaust volume is reduced when there is outdoor exhaust in the low temperature indoor space. It reduces or stops exhausting, for the same reason as described above (S1206).

Through such a control operation, when the temperature in each indoor space becomes uniform and the average temperature is reached, the air supply to each indoor space is stopped (S1207 and S1208).

10: air conditioner 100: indoor unit
200: ventilator 210: total heat exchanger
220: intake fan 230: exhaust fan
240: intake valve 250: exhaust valve
310: first air duct 311: inlet control device
320: second air duct 320: outlet control device
330: supply duct 331: supply regulator
340: discharge duct 350: connection duct
351: euro switching device

Claims (25)

Recognizing power rate information;
The air provided in the air providing step of providing the air of the first indoor space to the second indoor space in order to reduce the temperature difference between the first indoor space and the second indoor space of the plurality of indoor spaces based on the recognized power rate information Control method of harmonics. The method of claim 1,
And setting a target temperature of the second indoor space based on a user set temperature and the recognized power rate information. The method of claim 1,
When the air conditioner performs the cooling operation, the air providing step is a control method of the air conditioner, characterized in that for supplying the air in the first indoor space having a lower temperature than the second indoor space to the second indoor space. The method of claim 3,
The air providing step is a control method of an air conditioner, characterized in that to provide the air of the first indoor space having the lowest temperature of the plurality of indoor spaces to the second indoor space having the highest temperature of the plurality of indoor spaces. The method of claim 1,
When the air conditioner is heating operation, the air providing step is a control method of the air conditioner, characterized in that for supplying the air in the first indoor space having a higher temperature than the second indoor space to the second indoor space. The method of claim 5,
The air providing step is a control method of an air conditioner, characterized in that to provide the air of the first indoor space having the highest temperature of the plurality of indoor spaces to the second indoor space having the lowest temperature of the plurality of indoor spaces. The method of claim 1,
The air providing step of providing air from the first indoor space to the second indoor space;
Recognizing a temperature of the first indoor space;
Recognizing a target temperature of the second indoor space;
And providing air of the first indoor space to the second indoor space based on the recognized temperature of the first indoor space and the target temperature of the second indoor space. . The method of claim 7, wherein
When the air conditioner performs the cooling operation, the air providing step provides an air conditioner of the first indoor space having an indoor temperature lower than a target temperature of the second indoor space to the second indoor space. Control method. The method of claim 7, wherein
When the air conditioner is heating, the air providing step provides an air conditioner of the first indoor space having a room temperature higher than a target temperature of the second indoor space to the second indoor space. Control method. The method of claim 1,
Determining whether the comfort level of the first indoor space deviates from a predetermined range;
And providing outside air to supply air outside the building to the first indoor space when the comfort level of the first indoor space deviates from a predetermined range. The method of claim 10,
The determining of the comfort level of the first indoor space is a step of determining whether the amount of humidity of the indoor air is more than a predetermined level. The method of claim 10,
The determining of the comfort level of the first indoor space is a step of determining whether the amount of carbon dioxide in the indoor air is more than a predetermined level. The method of claim 1,
And controlling an air discharge step of discharging the air in the second indoor space to the outside of the building to control the temperature of the second indoor space receiving the air of the first indoor space. Way. The method of claim 1,
If the user's air exchange stop command is entered,
And stopping supply of air from the first indoor space to the second indoor space. The method of claim 1,
Sensing a temperature of the first indoor space and the second indoor space;
Calculating an average temperature of the first indoor space and the second indoor space;
In the present cooling mode, supplying air from the first indoor space to the second indoor space is performed when the temperature of the first indoor space is lower than the average temperature.
In the current heating mode, supplying air from the first indoor space to the second indoor space is characterized in that the air providing step is performed when the temperature of the first indoor space is higher than the average temperature. Control method of air conditioner. 16. The method of claim 15,
Discharging the indoor air of the first indoor space to the outside of the building;
Reducing the exhaust air volume of the indoor air discharged from the first indoor space to the outside of the building when the temperature in the second indoor space is higher than the average temperature in the present cooling mode;
In the current heating mode, when the temperature of the second indoor space is lower than the average temperature, further comprising the step of reducing the exhaust volume of the indoor air discharged from the first indoor space to the outside of the building Control method of harmonics. The method of claim 1,
A leveling step of determining a level of a current power rate;
If the power charge level is a first level, controlling to operate according to a user setting;
Adjusting a target control temperature of the second indoor space when the level of the power rate is a second level;
And performing the air providing step of providing air in the first indoor space to the second indoor space when the level of the electric power rate is the third level. The method of claim 17,
The adjusting of the target temperature of the second indoor space may include adjusting the target control temperature to be higher than a user set temperature in the cooling mode. The method of claim 17,
The adjusting of the target temperature of the second indoor space may include adjusting the target control temperature to be lower than a user set temperature in the heating mode. The method of claim 14,
When the level of the power rate is the fourth level,
Sensing temperatures of a plurality of indoor spaces including the first indoor space and the second indoor space;
Calculating an average temperature of all the detected indoor spaces;
In the present cooling mode, when the temperature of the first indoor space is lower than the average temperature, and the temperature of the second indoor space is higher than the average temperature, providing the air of the first indoor space to the second indoor space Performing the air providing step,
In the current heating mode, when the temperature of the first indoor space is higher than the average temperature, and the temperature of the second indoor space is lower than the average temperature, providing the air of the first indoor space to the second indoor space Control method of an air conditioner, characterized in that for performing the air providing step. The method of claim 20,
The air conditioner includes a compressor, an outdoor unit, a plurality of indoor units, a ventilation device,
When the level of the power rate is the fourth level, the ventilation device is driven to provide air in the first indoor space to the second indoor space,
Reducing power consumption by stopping at least one of the compressor, the outdoor unit or the plurality of indoor units. The method of claim 21,
The step of recognizing the power bill information, the control method of the air conditioner, characterized in that including the power peak charge. (A) recognizing power rate information;
(B) controlling a target control temperature in consideration of a user set temperature and the recognized power charge information. The method of claim 23, wherein
If the current operation mode is cooling mode,
In step (B), the target control temperature of the indoor space is controlled to be higher than a predetermined temperature by a user set temperature.
If the current operation mode is heating mode,
Step (B) is a control method of the air conditioner, characterized in that the target control temperature of the indoor space is controlled so that the user set temperature is lower than the predetermined temperature. The method of claim 23, wherein
(C) controlling the fan of the indoor unit, further comprising the step of increasing the amount of air discharged from the indoor unit than the present.

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