KR20120005666A - A control method of a communication component - Google Patents

Abstract

PURPOSE: A control method of a communication component is provided to efficiently perform the power management of an electric product that consists of power communication network. CONSTITUTION: A control device calculates driving state information of a communication component and prediction consumption power information(S501). The control device recognizes power Information(S502). The control device recognizes inputted desired power information(S504). The control device controls prediction consumption power information through a driving state of the communication component based on a comparing result between prediction consumption power information and request consumption power information(S505, S506).

Description

Control method of a communication component

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method of an electric product, and more particularly, to a control method capable of controlling the operation of a communication component constituting a power communication network such as an electric product on the basis of a desired power rate.

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 provides a control method that can control the operation state of a communication component under such a smart grid, taking into account the change in power rate with time and the user's desired power consumption rate for a communication component such as an electric product. Its purpose is to.

In order to achieve the above object, the present invention provides a method of controlling a predetermined communication component constituting a power communication network, the method comprising: (A) driving state information including a desired driving mode and a desired driving time zone of the communication component; Calculating and recognizing estimated power consumption information corresponding to the power consumption; (B) recognizing power information including power charges; (C) recognizing desired power information input by the user; (D) comparing the expected power consumption information with the desired power information, and adjusting the operation state information of the communication component such that the estimated power consumption information is equal to or less than the desired power information based on the comparison result. do.

The communication component is composed of electrical appliances,

The estimated power consumption information includes an estimated power consumption fee, the desired power information includes a desired power consumption fee, and in step (D), the estimated power consumption fee input by the user is equal to or less than the desired power consumption rate. It is characterized by providing a guide to the driving time.

In the step (C), when the user inputs a desired power consumption fee, the user may recognize a time zone during which the desired power consumption fee is charged and display the same.

In the step (C), when the user changes the input desired power consumption fee, it recognizes and displays a time zone during which the changed desired power consumption is charged.

When the user selects the guided driving time zone, the electrical appliance performs the desired driving mode in the selected driving time zone.

In addition, the present invention is a control method of a predetermined communication component constituting a power communication network, (E) the operation mode or time zone of the communication component for processing the load based on the information on the load received from the outside Calculating and recognizing driving state information, including expected power consumption information corresponding to the driving state information;

(F) recognizing power information including power charges;

(G) recognizing desired power information input by the user;

(H) comparing the estimated power consumption information with the desired power information, and controlling the operation state information of the communication component such that the estimated power consumption information is equal to or less than the desired power information based on the comparison result. do.

The communication component includes an electrical appliance constituting the power communication network, and the desired power information includes a desired power consumption fee, wherein step (G) includes charging a desired power fee and a desired power fee input by a user. Recognize and display the time zone.

The estimated power consumption information includes an estimated power consumption fee,

In the step (H), the estimated power consumption rate is compared with the expected power consumption rate, and when the estimated power consumption rate exceeds the desired power consumption rate, the estimated power consumption rate may be less than the desired power consumption rate. It is characterized by guiding the time zone.

According to the present invention, it is possible to efficiently manage power in each electric product which is one of the communication components constituting the power communication network, thereby reducing the power charge.

In particular, if the user wants to operate based on driving information such as a specific operation mode under the desired power consumption fee, the operation time zone is maintained or changed in accordance with the original desired operation time in consideration of the change of the power charge over time. You can control the power bill for the operation of the appliance to suit your needs.

Therefore, while providing a power saving option according to the user's taste or selection, the user's convenience and economic benefits can be realized because the electric function does not impair the original function provided by the electrical appliance.

1 is an overall schematic diagram of a smart grid in which the present invention is implemented.
2 is a schematic diagram of a power management network provided between a power supply source and a home in the present invention.
Figure 3 is a front view of the energy management device in the present invention.
4 is a control block diagram of a power management network provided between a power supply source and a home in the present invention.
5 is a control flowchart of the present invention.
6 is a view showing a state of the display unit according to the input of the desired power consumption fee in the present invention.
7 is a graph showing a change in the operating time zone for the electrical appliance based on the desired power consumption fee in the present invention.
8 is a graph showing an on-peak time period and an off-peak time period.

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, the smart measuring device is installed in the office or home to identify the real-time power and electricity bills used at each demand source. Through this, the user recognizes the amount of electricity and the electricity bill currently used, and according to the situation, the power consumption or the electricity bill according to the situation. Measures to reduce the

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), which is responsible for real-time power communication and real-time prediction of power consumption, and an advanced metering infrastructure (AMI), which measures power consumption in real time, are pivotal. Play the role of person.

Here, the measuring device under the smart grid is a basic technology for integrating consumers on the basis of open architecture, and provides consumers with the ability to efficiently use electricity, and provides power providers with the ability to operate the system efficiently by detecting problems in the system. do.

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 instrumentation 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.

On the other hand, the electrical appliance collects the state information on the operation mode of each electrical appliance, and receives the environmental information such as power information or temperature or humidity received from the energy management device (EMS) or the smart meter and electric power A smart control device for reflecting the operation control of the product is provided.

Control of each electrical appliance may be performed by communication between the smart control device, 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 illustrates a power communication network 10 in a home, which is a major consumer of a smart grid.

The power communication network 10 may receive power information such as power and power rates supplied to each home from the outside, and a smart meter 20 capable of measuring the power consumption and power rates in the home in real time. And an energy management device (EMS) 30 connected to the smart meter 20 and communicating with one or more electrical appliances and controlling their operation.

As such, the smart meter 20, the energy management device (EMS) 30, and the electrical appliances that constitute the power communication network 10 may be referred to as communication components.

That is, in the power communication network 10, a specific element may communicate with other elements to transmit and receive information, and according to the information, the specific element may control or be controlled by other elements.

Here, the energy management device (EMS) 30 has a screen 31 for displaying the current power consumption state and the external environment (temperature, humidity), and has an input unit 32 or the like which can be operated by a user. It is preferable to be provided in the form of a terminal.

The energy management device (EMS) 30 is again an electrical appliance such as a refrigerator 101, a washing machine and a dryer 102, an air conditioner 103, a TV 105, or a cooking appliance 104 through a home network. It is connected to the (100), and two-way communication with them.

Communication inside the house can be via wireless or wired, such as a PLC.

In addition, it is preferable that the electrical appliances are arranged to be connected to other electrical appliances so that communication is possible.

The power supply source 50 for supplying power to the home is provided with general power generation equipment (firepower, nuclear power, hydropower) or a system power supply having power generation equipment using renewable energy (solar, wind, geothermal) and the like (51). For example, a power company such as KEPCO will be an example.

In addition, a self-generating facility 52 such as a solar power generation facility provided in each home, or a fuel cell 53 provided in a home or a vehicle may be another power supply source.

Typically, the power supply 50 is connected to the smart meter 20 and the energy management device 30 to provide power information to them, the information provided in this way to be used as basic information for the control of each electrical appliance again do.

However, the information provided from the power supply source 50 may be directly applied to each communication device (not shown) provided in each of the electrical appliances 100 without passing through the smart meter 20 and the fraudulent energy management device 30. It can be transmitted, through which it is possible to provide information for the operation control of the specific electrical appliances of each home directly in the place such as the power company (51).

FIG. 3 shows an embodiment of an energy management device (EMS), which has the form of a terminal having a touch panel 33.

The touch panel 33 includes information such as current electricity consumption, electricity rate, estimated charge and carbon dioxide generation amount estimated by accumulated history, electricity rate of the current time interval, electricity rate of the next time interval, and A screen 31 is displayed in which real-time energy information and weather information including a time zone in which an electric charge changes are displayed.

In addition, the screen 31 of the touch panel includes a graph showing power consumption by time zone of each home appliance and a change thereof.

In addition, the information on whether the power supply for each product is also displayed in the ON / OFF state.

One side of the screen 31 is provided with an input unit 32 that allows the user to set the operation of the electrical appliance, if necessary.

By using the input unit 32, the user can set a limit of the amount of electricity or electricity bill that he or she wants to use, and according to this setting, the energy management device (EMS) 30 can control the operation of each electric product. Will be.

Figure 4 shows a control block diagram of a power supply source 50 under a smart grid and a power communication network that is responsible for powering electrical appliances in the home.

As described above, the power supply source 50 may be a system power source 51, a self-generation power plant 52, or a fuel cell 53.

The power supply 50 may be connected to the smart meter 20 or may be connected to the energy management device (EMS) 30.

Here, the configuration of the energy management device (EMS) 30, the control unit 35, the input unit 38, the communication unit 34, the display unit 39 is included.

The communication unit 34 communicates with electrical appliances 100 in the home, that is, the refrigerator 101, the washing machine or the dryer 102, and the air conditioner 103, the cooking apparatus 104, and the like. It plays a role of transmitting and receiving information and driving information.

The control unit 35 grasps the setting information input by the user by the input unit 38, the operation and power usage history information of the existing electrical appliances, and the amount of power supplied from the outside in real time, and the information in real time. Processing to control the operation of electrical appliances and to control the power supplied to these electrical appliances.

In the following, in response to the change in the electricity bill with time, the energy management device 30 or smart meter 20 or the electrical appliance itself to control the operation of the electrical appliance in order to reduce the electricity bill will be described. .

In addition, the control device will be referred to as a control device built in the energy management device 30 or the smart meter 20, or a control unit that is internally embedded in a communication component such as an electric product to direct a control operation of the electric appliance.

As shown in Figure 5, the control device recognizes the operating state information of the electrical appliance (S501).

The driving state information includes a desired driving mode, a desired driving time zone, and a driving time required for the electrical appliance desired by the user.

In operation S501, calculating and recognizing expected power consumption information for operating the electric appliance according to the driving state information.

The estimated power consumption information includes at least one of an estimated power consumption fee and an estimated power consumption.

On the other hand, the operation mode or time zone of the electrical appliance for processing the load based on the load applied to the electrical appliance is also included in the operation state information.

As an example of the load, when the electrical appliance is a washing machine, it may be the weight, material, etc. of the laundry, and in the case of the dryer, the weight of the drying object. In addition, in the case of the air conditioner will be the degree of change in the room temperature, etc., in the case of the refrigerator, the degree of change in temperature inside the storage compartment falls into the load category.

In operation S502, power information including a power charge that changes with time is recognized.

In operation S503, an estimated power consumption fee required to perform the desired driving mode in the current time zone or the desired driving time zone is calculated.

In this state, it is determined whether the user inputs a desired power consumption fee that is a standard fee (S504).

In other words, it is determined whether the user has actively expressed his / her intention by using the power consumption fee desired by the user as a constraint in driving the electrical appliance.

Thus, when such intention is not made, the desired driving mode is operated in the desired driving time zone or the current time zone (S509).

However, when the user actively inputs the desired power consumption fee, the user recognizes the time period during which the desired power fee is charged and displays it.

In operation S505, it is determined whether the estimated power consumption rate exceeds the reference rate, that is, the desired power consumption rate.

If the estimated power consumption rate is the power consumption rate to enter the desired operation mode in the desired time period, if the user sets below the standard, it means that the electrical appliance may be operated in that state.

Therefore, operation is performed in the original setting state (S509).

On the other hand, in step S505, when the estimated power consumption fee exceeds the reference fee (desired power consumption fee) guides the operating time zone that the estimated power consumption fee may be less than the reference fee (S506).

Thereafter, it is determined whether the user selects the guided time zone (S507), and the electric appliance operates in the desired driving mode in the selected time zone (S508).

However, in step S507, a situation in which the user wants to change the desired power consumption fee may not be selected immediately.

When the desired power consumption fee is changed, the changed power consumption fee is changed to the time period when the charge is charged, and the control device recognizes this and displays it on the display of the electrical appliance or the display of the energy management device (EMS).

After that, the process of re-guiding the time period during which the expected power consumption rate becomes less than the changed desired power consumption rate is performed.

Then, it is determined whether the user selects the guided time zone again (S507), and the electric appliance operates in the desired driving mode in the selected time zone (S508).

Figure 6 illustrates a change in the state displayed on the electrical appliance or energy management device to implement the control method according to the present invention.

Here, the operation control of the washing machine is displayed, but is not limited thereto, and may be applied to all electric appliances such as a refrigerator, an air conditioner, a cooking appliance, and the like.

First, as shown in Fig. 6A, a user puts laundry into a washing machine and selects a desired operation mode. When the desired operation mode is selected, the estimated time required to automatically execute the desired operation mode is also displayed.

And, as shown in Figure 6 (b), receives the power information, such as power charge information from the outside and displays it, and based on such power charge information, the power charge required to perform the current desired driving mode (in this figure Calculate the cost of one wash).

Indicate whether the current time zone or the desired operating time zone is an on-peak time zone, which is a time zone when the hourly power bill is expensive, or a relatively inexpensive off-peak zone.

Then, it waits for input whether to perform the washing mode in the current time zone or the desired driving time zone.

As shown in FIG. 8, the on-peak time interval is a relatively expensive time interval because the hourly power rate is higher than or equal to a predetermined criterion. The off-peak time interval is a relatively inexpensive time interval because the hourly electricity rate is lower than or equal to the predetermined criterion. Means.

Therefore, if the user refuses to perform the washing mode in the current time zone or the desired driving time zone, or if the washing machine itself is automatically denied because the current time is in the on-peak time period and the expected power consumption rate is high. Have the user enter the desired power consumption fee.

In addition, a time slot during which an expected power consumption rate may be charged is below the desired power consumption rate.

As shown in FIG. 6 (d), when the user sets the desired power consumption fee to 1000 won, the user is informed by displaying that it may be performed after 19:30 so that the estimated power consumption fee is 1000 won or less. do.

However, if the user changes the desired power consumption fee to 800 won, the time zone that becomes 800 won will be displayed.

On the other hand, as shown in Fig. 7 (a), the expected power consumption rate of the electrical appliance is a predetermined criterion for the user's first desired driving time period (time zone between the desired start time and the desired end time) in the on-peak time period. If more than the desired power consumption fee), the control unit is further guided to other guided operating time zones (guided start) belonging to the off-peak time zone so that the estimated power consumption fee can be below the predetermined criterion (the desired power consumption fee of the user). It is also conceivable to provide a time between the guided end time and the electrical appliance to operate during that time period.

10: Power Management Network 20: Smart Meter
30: energy management device 51: grid power
51: self power plant 52: fuel cell
100: electrical appliances

Claims (8)

A control method of a predetermined communication component constituting a power communication network,
Calculating and recognizing driving state information including a desired driving mode and a desired driving time zone of the communication component and estimated power consumption information corresponding to the driving state information;
(B) recognizing power information including power charges;
(C) recognizing desired power information input by the user;
(D) comparing the expected power consumption information with the desired power information, and adjusting the operation state information of the communication component such that the estimated power consumption information is equal to or less than the desired power information based on the comparison result. Control method of the communication component. The method of claim 1,
The communication component is composed of electrical appliances,
The estimated power consumption information includes an estimated power consumption fee, the desired power information includes a desired power consumption fee,
In the step (D), the control method of the communication component, characterized in that the guidance provided by the operating time period when the power consumption fee input by the user is less than the desired power consumption fee. The method of claim 2,
In the step (C), when the user inputs a desired power consumption fee, the control method for a communication component, characterized in that it recognizes and displays a time period during which the desired power consumption fee is charged. The method of claim 3,
In the step (C), when the user changes the input desired power consumption fee, the control method of the communication component, characterized in that it recognizes and displays the time zone when the changed desired power consumption is charged. The method of claim 2,
And when the user selects the guided driving time zone, the electrical appliance performs the desired driving mode in the selected driving time zone. A control method of a predetermined communication component constituting a power communication network,
(E) calculating operation state information including an operation mode or an operation time zone of the communication component for processing the load based on the information about the load received from the outside, and estimated power consumption information corresponding to the operation state information; Recognizing;
(F) recognizing power information including power charges;
(G) recognizing desired power information input by the user;
(H) comparing the estimated power consumption information with the desired power information, and controlling the operation state information of the communication component such that the estimated power consumption information is equal to or less than the desired power information based on the comparison result. Control method of the communication component. The method of claim 6,
The communication component includes electrical appliances constituting the power communication network, and the desired power information includes a desired power consumption fee,
Step (G) is a control method of a communication component, characterized in that for recognizing and displaying the desired power rate input by the user and the time zone when the desired power rate is charged. The method of claim 7, wherein
The estimated power consumption information includes an estimated power consumption fee,
In the step (H), the estimated power consumption rate is compared with the expected power consumption rate, and when the estimated power consumption rate exceeds the desired power consumption rate, the estimated power consumption rate may be less than the desired power consumption rate. A control method of a communication component, characterized by guiding a time zone.

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