KR20120000021A - Newtwork system and controlling method thereof - Google Patents

Abstract

PURPOSE: A network system and a control method thereof are provided to check an abnormal specific component, thereby operating the specific component in a safe mode. CONSTITUTION: A specific component(C) is operated. An abnormal state is determined during an operation of the specific component. If the abnormal state is recognized, the specific component operates in a safe mode. The abnormal state occurs when a current which is higher than a reference value is supplied to the component or an energy consuming unit which configures the component.

Description

Network system and control method thereof

The present invention relates to a network system and a control method thereof.

The supplier simply supplied energy sources such as electricity, water and gas, and the consumer simply used the supplied energy sources. Therefore, effective management in terms of energy production, distribution, or energy use has been difficult to carry out.

In other words, energy is a radial structure that is distributed from energy suppliers toward multiple demand sources, that is, spreads from the center to the periphery, and is characterized by unidirectional supplier center, not consumer center.

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 this problem, there have been a lot of efforts in recent years to implement a horizontal, cooperative, and distributed network that effectively manages energy and enables interaction between consumers and suppliers.

SUMMARY OF THE INVENTION An object of the present invention is to provide a network system and a method of controlling the same, which can effectively manage energy and prevent damage to a specific component by checking an abnormal state of a specific component and operating in a safe mode.

According to an aspect, a control method of a network system includes a method of controlling a network system including one or more components operating in an energy related manner, the method comprising: operating the specific component; Determining an abnormal state in an operation of the specific component; And if the abnormal state is recognized, performing the safe mode by the specific component.

According to another aspect, a network system includes one or more components that perform energy related operations, the components comprising: communication means for communication; And a controller for recognizing an abnormal state of the component, and when the abnormal state is recognized, the specific component performs a safe mode.

According to the present invention, by cutting off the current or power in an abnormal state of a particular component, there is an advantage that unnecessary energy consumption in a particular component is reduced.

In addition, since energy information and additional information can be transmitted and received between components by communication, the energy source can be efficiently produced, used, distributed, stored, and the like, thereby enabling efficient management of the energy source.

In addition, since the abnormal state of the component can be displayed to the outside, there is an advantage that the user can easily check.

1 shows schematically a network system according to the invention;
2 is a block diagram schematically showing a network system according to the present invention.
3 is a block diagram showing an information transfer process on a network system of the present invention.
FIG. 4 is a graph illustrating a form of an electric charge. FIG. 4A is a graph showing time of use (TOU) information and critical peak pattern (CPP) information, and FIG. 4B is a RTP ( real time pattern) A graph showing information.
5 is a block diagram schematically showing a first application example of a network system according to the present invention;
6 is a block diagram schematically showing a second application example of a network system according to the present invention;
7 is a block diagram schematically showing a third application example of a network system according to the present invention;
8 is a block diagram of specific components that make up the network system of the present invention.
9 is a flow chart illustrating a method of controlling a specific component of FIG. 8.

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

1 is a view schematically showing a network system according to the present invention.

This network system is a system for managing energy sources such as electricity, water, and gas. The energy source means that the amount of generation, the amount of use, etc. can be measured.

Thus, energy sources not mentioned above may also be included in the management of this system. Hereinafter, as an energy source, electricity will be described as an example, and the contents of the present specification may be equally applied to other energy sources.

Referring to FIG. 1, an exemplary network system includes a power plant that generates electricity. The power plant may include a power plant that generates electricity through thermal power generation or nuclear power generation, and a power plant using hydro, solar, wind, and the like, which are environmentally friendly energy.

In addition, the electricity generated in the power plant is transmitted to the power station through the transmission line, and in the power station (substation) to transmit electricity to the substation so that the electricity is distributed to the demand destination, such as home or office.

In addition, the electricity produced by the environmentally friendly energy is also transmitted to the substation to be distributed to each customer. Then, the electricity transmitted from the substation is distributed to the office or home via the electrical storage device or directly.

Even in homes that use a home area network (HAN), they can produce, store, or distribute their own electricity through solar light or fuel cells mounted on a plug-in hybrid electric vehicle (PHEV), The surplus electricity can also be sold back to the outside world (for example, the utility).

In addition, the network system includes a smart meter for real-time measuring the electricity usage of the demand destination (home or office, etc.), and a meter (AMI: Advanced Metering infrastructure) for real-time measurement of the electricity usage of a plurality of demand destinations. May be included. That is, the measuring device may receive the information measured by the plurality of smart meters to measure the electricity usage.

In this specification, the measurement includes not only the smart meter and the measuring device itself measuring, but also that the smart meter and the measuring device can recognize the generation amount or the usage amount from other components.

The network system may further include an energy management system (EMS) for managing energy. The energy management device may generate information about the operation of one or more components in relation to energy (generation, distribution, use, storage, etc.) of energy. The energy management device can generate instructions relating to the operation of at least the component.

In the present specification, the function or solution performed by the energy management device may be referred to as an energy management function or an energy management solution.

In the network system of the present invention, one or more energy management devices may be present in separate configurations, or may be included in one or more components as an energy management function or solution.

2 is a block diagram schematically showing a network system according to the present invention.

1 and 2, the network system of the present invention is constituted by a plurality of components. For example, power plants, substations, power stations, energy management devices, appliances, smart meters, capacitors, web servers, instrumentation devices, and home servers are the components of network systems.

In addition, in the present invention, each component may be constituted by a plurality of detailed components. For example, when one component is a home appliance, a detailed component may be a microcomputer, a heater, a display, a motor, etc. constituting the home appliance.

That is, in the present invention, everything that performs a specific function can be a component, and these components constitute the network system of the present invention. In addition, the two components may communicate by a communication means.

In addition, one network may be one component or may be composed of multiple components.

In the present specification, a network system in which communication information is associated with an energy source may be referred to as an energy grid.

The network system according to an exemplary embodiment may be configured of a utility network (UAN) 10 and a home network (HAN) 20. The utility network 10 and the home network 20 may communicate by wire or wirelessly by communication means.

In this specification, a home means a group of specific components such as a building, a company, as well as a home in a dictionary meaning. And, utility means a group of specific components outside the home.

The utility network 10 includes an energy generation component 11 for generating energy, an energy distribution component 12 for distributing or transferring energy, and an energy storage unit for storing energy. An energy storage component 13), an energy management component 14 for managing energy, and an energy metering component 15 for measuring energy related information.

When one or more components constituting the utility network 10 consume energy, the component that consumes energy may be an energy consumer. That is, the energy consumption unit may be a separate configuration or may be included in other components.

The energy generator 11 may be, for example, a power plant. The energy distribution unit 12 distributes or delivers the energy generated by the energy generator 11 and / or the energy stored in the energy storage unit 13 to the energy consumption unit. The energy distribution unit 12 may be a power transmitter, a substation, or a power station.

The energy storage unit 13 may be a storage battery, and the energy management unit 14 is related to energy, the energy generating unit 11, energy distribution unit 12, energy storage unit 13, energy consumption unit ( 26) generates information for one or more of driving. For example, the energy management unit 14 may generate a command regarding the operation of at least a specific component.

The energy management unit 14 may be an energy management device. The energy measuring unit 15 may measure information related to energy generation, distribution, consumption, storage, and the like, and may be, for example, a measuring device (AMI). The energy management unit 14 may be a separate configuration or may be included as an energy management function in other components.

The utility network 10 may communicate with the home network 20 by a terminal component (not shown). The terminal component may be, for example, a gateway. Such terminal components may be provided in one or more of the utility network 10 and the home network 20.

Meanwhile, the home network 20 includes an energy generation component 21 for generating energy, an energy distribution component 22 for distributing energy, and an energy storage unit for storing energy. storage component 23, an energy management component 24 for managing energy, an energy metering component 25 for measuring information related to energy, and an energy consuming unit for consuming energy consumption component 26, a central management component 27 for controlling a plurality of components, an energy grid assistance component 28, an accessory component 29, and a consumer processing component component: 30).

The energy generation component 21 may be a household generator, the energy storage component 23 may be a storage battery, and the energy management component 24 may be an energy management device. have.

The energy metering component 25 may measure information related to generation, distribution, consumption, storage, and the like of energy. For example, the energy metering component 25 may be a smart meter.

The energy consumption unit 26 may be, for example, a home appliance (a refrigerator, a washing machine, an air conditioner, a cooking appliance, a cleaner, a dryer, a dishwasher, a dehumidifier, a display device, a lighting device, etc.) or a heater, a motor, a display, etc. constituting the home appliance. Can be. Note that there is no restriction on the type of energy consumption unit 26 in this embodiment.

The energy management unit 24 may be an individual component or may be included as an energy management function in another component. The energy management unit 21 may communicate with one or more components to transmit and receive information.

The energy generator 21, the energy distributor 22, and the energy storage unit 23 may be individual components or may constitute a single component.

The central management unit 27 may be, for example, a home server controlling a plurality of home appliances.

The energy network assistant 28 is a component having an original function while performing an additional function for the energy grid. For example, the energy network assistant 28 may be a web service provider (eg, a computer), a mobile device, a television, or the like.

The accessory component 29 is an energy network only component that performs additional functions for the energy network. For example, the accessory component 29 may be a weather network antenna dedicated to the energy network.

The consumer handling component 30 is a component that stores, supplies, and delivers the consumer, and may identify or recognize information about the consumer. The consumer may be, for example, an article or material that is used or processed when the energy consumption unit 26 is operated. In addition, the consumer processor 30 may be managed by the energy manager 24 as an example in an energy network.

For example, the consumer may be a laundry cloth in a washing machine, a food in a cooking appliance, a detergent or a fabric softener for washing a laundry cloth in a washing machine, a seasoning for cooking food, and the like.

Energy generation unit 11, 21, energy distribution unit 12, 22, energy storage unit 13, 23, energy management unit 14, 24, energy measuring unit 15, 25, energy consumption unit mentioned above (26), the central management unit 27 may exist independently of each other, or two or more may constitute a single component.

For example, the energy management unit 14 and 24, the energy measuring unit 15 and 25, and the central management unit 27 each exist as a single component, and perform smart functions, energy management devices, and home servers that perform their respective functions. Or, the energy management unit 14, 24, the energy measuring unit 15, 25, the central management unit 27 may form a single component mechanically.

In addition, in performing one function, the function may be sequentially performed in a plurality of components and / or communication means. For example, energy management functions may be sequentially performed in a separate energy management unit, an energy measuring unit, and an energy consumption unit.

In addition, a plurality of components of a specific function constituting the utility network and the home network may be provided. For example, there may be a plurality of energy generating units or energy consuming units.

On the other hand, the utility network 10 and the home network 20 can communicate by a communication means (first interface). At this time, the plurality of utility networks 10 may communicate with a single home network 20, and the single utility network 10 may communicate with a plurality of home networks 20.

For example, the communication means may be a simple communication line or a power line communication means. Of course, the power line communication means may include a communicator (eg, a modem) connected to each of the two components. As another example, the communication means may be zigbee, wi-fi, Bluetooth, or the like.

In the present specification, there is no limitation on the method for wired communication or the method for wireless communication.

Two components constituting the utility network 10 may communicate by means of communication means.

In addition, the two components constituting the home network 20 may communicate by a communication means (second interface). For example, the energy consumption unit 26 may communicate with one or more of the energy management unit 24, the energy measurement unit 25, the central management unit 27, the energy network assistance unit 28, and the like (second interface). Can communicate by

In addition, the microcomputer of each component (for example, the energy consumption unit) may communicate with the communication means (second interface) (third interface). For example, when the energy consumption is a household appliance, the energy consumption unit may receive information from the energy management unit by a communication means (second interface), and the received information is a microcomputer of the household appliance by a third interface. Can be delivered.

In addition, the energy consumption unit 26 may communicate with the accessory component 29 by a communication means (fourth interface). In addition, the energy consumption unit 26 may communicate with the consumer processor 30 by a communication means (a fifth interface).

3 is a block diagram showing a process of transferring information on a network system of the present invention. FIG. 4 is a graph illustrating a form of an electric charge. FIG. 4A is a graph showing time of use (TOU) information and critical peak pattern (CPP) information, and FIG. 4B is a RTP ( This graph shows real time pattern information.

Referring to FIG. 3, in the network system of the present invention, a specific component C may receive information related to energy (hereinafter, “energy information”) by communication means. In addition, the specific component (C) may be additional information (environmental information, program update information, time information, operation or status information of each component (breakdown, etc.), in addition to the energy information by the communication means, consumer habit information using the energy consumption unit, etc. ) Can be received further.

The environmental information may include carbon dioxide emissions, carbon dioxide concentration in the air, temperature, humidity, rainfall, rainfall or the like, solar radiation, air volume, and the like.

In another aspect, the information is internal information, such as information related to each component (operation or status information of each component (such as failure), energy usage information of the energy consumer, consumer habit information using the energy consumer, etc.), and other information. Phosphorus can be classified into external information (energy information, environment information, program update information, time information).

At this time, the information may be received from other components. In other words, the received information includes at least energy information.

The specific component may be one component constituting the utility network 10 or one component constituting the home network 20.

As described above, the energy information I may be one of information such as electricity, water, and gas.

For example, information related to electricity includes time-based pricing, energy curtailment, grid emergency, grid reliability, energy generation amount, and operational priority. (operation priority), energy consumption amount (Amount). In this embodiment, the fee associated with the energy source may be referred to as an energy fee.

In other words, energy-related information may be classified into charge information (energy charge) and non-charge information (energy reduction, emergency situation, network safety, generation amount, operation priority, energy consumption amount, etc.).

Such information may be classified into schedule information previously generated based on previous information and real time information that changes in real time. The schedule information and the real time information may be distinguished by predicting information after the current time (future).

The energy information I may be classified into time of use (TOU) information, critical peak pattern (CPP) information, or real time pattern (RTP) information according to a change pattern of data over time. The energy information I may change with time.

Referring to FIG. 4A, according to the TOU information, data is gradually changed in time. According to the CPP information, the data changes step by step or in real time with time, and emphasis is displayed at a specific time point. That is, in the case of the CPP pattern, the general fee is lower than that of the TOU pattern, but the charge at a specific time point is significantly higher than that in the TOU pattern.

Referring to FIG. 4B, according to the RTP information, data changes in real time with time.

Meanwhile, the energy information I may be transmitted and received with a true or false signal, such as a Boolean on a network system, or actual price information may be transmitted or received, or may be leveled and transmitted. Hereinafter, information related to electricity will be described by way of example.

When the specific component C receives a true or false signal, such as a Boolean, any one signal is recognized as an on-peak signal (recognition of information related to energy consumption or reduction of energy bill). The other signal may be recognized as an off-peak signal.

In contrast, a particular component may recognize information about at least one driving including an electric charge, and the specific component compares the recognized information value with the reference information value to compare the on-peak and off-peak ( off-peak).

For example, when a specific component recognizes leveled information or actual price information, the specific component compares the recognized information value with the reference information value to turn on-peak and off-peak. Recognize.

In this case, the information value related to the driving may be at least one of an electric charge, a power amount, a change rate of the electric charge, a change rate of the power amount, an average value of the electric charge, and an average value of the electric power. The reference information value may be at least one of an average value, an average value of minimum and maximum values of power information during a predetermined section, and a reference rate of change of power information (eg, slope of power consumption per unit time) during the predetermined section.

The reference information value may be set in real time or may be set in advance. The reference information value may be set in a utility network or in a home network (input from a consumer direct input, an energy manager, a central manager, etc.).

When the specific component (for example, the energy consumption unit) recognizes an on-peak (for example, a recognition time point), the output may be zero (stopped or stopped) and the output may be reduced. The specific component may determine the driving method in advance before starting the operation, or may change the driving method when the on-peak is recognized after starting the operation.

And, if a particular component recognizes an off peak, the output can be restored or increased as needed. That is, when a specific component that recognizes an on peak recognizes an off peak, the output may be restored to a previous state or increased more than the previous output.

At this time, even when the specific component recovers the output or increases the output after recognizing the off-peak, the total power consumption and / or the total electricity bill for the entire operating time of the specific component is reduced.

Alternatively, when the specific component recognizes an on-peak (for example, a recognition time point), the output may be maintained when the specific component is operable. At this time, the operable condition means that the information value for driving is below a certain standard. The information value related to the driving may be information about an electric charge, power consumption, or operation time. The predetermined criterion may be a relative value or an absolute value.

The schedule standard may be set in real time or may be set in advance. The schedule criterion may be set in the utility network or in a home network (input from a consumer direct input, an energy manager, a central manager, etc.).

Alternatively, when the specific component recognizes an on-peak (eg, a recognition time), the output may be increased. However, even when the output is increased when the on-peak is recognized, the total output amount during the entire driving period of the specific component may be reduced or maintained than the total output amount when the specific component operates at the normal output.

Or, even if the output is increased when the on-peak is recognized, the total power consumption or total electric charge for the entire operating period of a particular component is the total power consumption or total power when the specific component operates at normal output. It can be lower than the electricity bill.

When the specific component recognizes an off-peak (for example, a recognition time), the output may be increased. For example, when an operation reservation is set, a specific component may start driving before a set time, or a component having a larger output among a plurality of components may be driven first.

In addition, in the case of a refrigerator, the output may be supercooled by increasing the output, or in the case of a washing machine or a washing machine, the hot water may be stored in the hot water tank by driving the heater in advance of the scheduled operation time of the heater. This is to reduce the electricity bill by operating in the off-peak in advance to operate in the on-peak to come later.

Alternatively, when a specific component recognizes an off-peak (eg, a recognition time), power storage may be performed.

In the present invention, the specific component (for example, the energy consumption unit) may maintain, reduce or increase the output. Thus, a particular component can include a power changing component. Since the power can be defined by current and voltage, the power variable component can include a current regulator and / or a voltage regulator. For example, the power variable component may be operated according to a command generated from an energy management unit.

Meanwhile, the energy curtailment information is information related to a mode in which a component is stopped or a low electric charge is used. In other words, the energy reduction information is information related to the reduction of energy consumption or energy bill. The energy saving information may be transmitted and received with a true or false signal, for example, as a Boolean on a network system. That is, a turn off signal or a lower power signal may be transmitted and received.

When the specific component recognizes the energy saving information, as described above, the output can be zeroed (if the stop or stop state is recognized) or the output can be reduced (if the lower power signal is recognized). have.

The grid emergency information is information related to a power failure and the like, and may be transmitted / received as a true or false signal such as Boolean. Information related to the power outage is related to the reliability of the component using energy.

When the specific component recognizes the emergency information, it may be immediately shut down.

When the specific component receives the emergency information as the schedule information, the specific component may increase the output before the arrival of the emergency time point to perform the same operation as the off-peak operation of the specific component described above. . In addition, the specific component may be shut down at an emergency time.

The grid reliability information is information about the high and low supply electricity or information on the quality of electricity, and is transmitted / received by a true or false signal, such as a Boolean, or supplied to a component (for example, a home appliance). The component may determine the frequency of the AC power.

That is, when an under frequency is detected (recognized) below the reference frequency of the AC power supplied to the component, the amount of supply electricity is determined to be low, and when the frequency higher than the reference frequency of the AC power is detected (recognized), the supply electricity is This can be judged by many. That is, the frequency lower than the reference frequency (underfrequency) corresponds to information related to the reduction of energy consumption or energy bill.

When the specific component recognizes that the amount of electricity in the network safety information is low or the information that the electrical quality is not good, as mentioned above, the specific component to output 0 (stop or stop) in some cases, You can reduce the output, maintain the output, or increase the output.

The excessive amount of generated electricity information is information on a state in which excess electricity is generated since the amount of electricity consumed by the component consuming less energy than the amount of generated electricity may be transmitted / received as a true or false signal, for example, a Boolean.

When the specific component recognizes excessive power generation information (for example, when grid overfrequency is recognized or when over energy signal is recognized), the output may be increased. For example, when an operation reservation is set, a specific component may start driving before a set time, or a component having a larger output among a plurality of components may be driven first. In addition, in the case of the refrigerator to increase the output than the existing output supercooled, or in the case of a washing machine or a washing machine, the hot water can be stored by driving the heater in advance than the scheduled time of operation of the heater.

On the other hand, each kind of information related to the energy, specifically, the unprocessed first information (I1), the second information (second information (I2)) that is processed information from the first information, and the specific The information may be divided into third information I3 which is information for performing a function of a component. That is, the first information is raw data, the second information is refined data, and the third information is a command for performing a function of a specific component.

The energy information is included in the signal and transmitted. In this case, one or more of the first to third information may be transmitted only a plurality of times without converting only the signal.

For example, as shown in the figure, any component that receives a signal including the first information I1 may only convert a signal and transmit a new signal including the first information I1 to another component.

Therefore, in the present embodiment, the signal conversion and the information conversion are described as different concepts. At this time, it will be easily understood that the signal is also converted when the first information is converted into the second information.

However, the third information may be delivered a plurality of times in the state where the contents are converted or in a state where only the signal is converted while maintaining the same contents.

In detail, when the first information is raw electricity price information, the second information may be processed electricity price information. The processed electric charge information is information or analysis information in which electric charges are divided into multiple levels. The third information is a command generated based on the first information or the second information.

The particular component may generate, transmit or receive one or more of the first to third information. The first to third information are not necessarily sequentially transmitted and received.

For example, only a plurality of third information may be transmitted or received sequentially or in parallel without the first and second information. Alternatively, the first and third information may be transmitted or received together, the second and third information may be transmitted or received together, or the first and second information may be transmitted or received together.

For example, when a specific component receives the first information, the specific component may transmit the second information, the second information and the third information, or may transmit only the third information.

When the specific component receives only the third information, the specific component may generate and transmit new third information.

Meanwhile, in the relationship between the two informations, one information is a message and the other information is a response to the message. Accordingly, each component constituting the present network system may transmit or receive a message, and when the message is received, may correspond to the received message. Thus, the transmission of messages and their corresponding responses is a relative concept for individual components.

The message may include data (first information or second information) and / or command (third information).

The command (third information) includes a data storage command, a data generating command, a data processing command (including generating additional data), a generating command of an additional command, a sending command of an additional generated command, and a received command. Commands and the like.

In the present specification, corresponding to a received message means storing data, processing data (including generating additional data), generating a new command, sending a newly generated command, and simply passing the received command to another component. Command can be generated together), operation, transmission of stored information, transmission of acknowledgment character or negative acknowledgment character.

For example, when the message is the first information, the component that has received the first information corresponds to this to generate the second information by processing the first information, generate the second information, and generate new third information, Only third information can be generated.

In detail, when the energy management unit 24 receives the first information (internal information and / or external information), the energy management unit 24 generates second information and / or third information to establish the home network. It may transmit to one or more components (for example, energy consumption unit) constituting. The energy consumption unit 26 may operate according to the third information received from the energy management unit 24.

5 is a block diagram schematically showing a first application example of a network system according to the present invention.

Referring to FIG. 5, the first component 31 of the home network 20 may communicate directly with the utility network 10. The first component 31 can communicate with a plurality of components 32, 33, 34: second to fourth components of the home network. At this time, it is noted that there is no limit to the number of components of the home network to communicate with the first component 31.

That is, in the present embodiment, the first component 31 serves as a gateway. For example, the first component 31 may be one of an energy management unit, an energy measuring unit, a central management unit, an energy network assistance unit, and an energy consumption unit.

In the present invention, the component acting as a gateway not only enables communication between components that communicate using different communication protocols, but also enables communication between components that communicate using the same communication protocol.

The second to fourth components 32, 33, and 34 may each be one of an energy generator, an energy distributor, an energy manager, an energy storage unit, an energy measurer, a central manager, an energy network assistant, and an energy consumer. have.

The first component 31 may receive information from the utility network 10 or one or more components constituting the utility network 10, and transmit or process the received information to process the second to fourth components. Can be sent to (32, 34). For example, when the first component 31 is an energy measuring unit, the first component may receive electric charge information and transmit the electric charge information to an energy management unit, an energy consumption unit, or the like.

Each of the second to fourth components may communicate with another component. For example, the first component 31 is an energy measuring unit, the second component is an energy management unit, and the energy management unit may communicate with one or more energy consumption units.

6 is a block diagram schematically showing a second application example of the network system according to the present invention.

Referring to FIG. 6, a plurality of components constituting the home network 20 of the present invention may directly communicate with the utility network 10.

That is, in the present invention, a plurality of components (first and second components 41 and 42) serving as gateways are included. The first and second components may be homogeneous components or other kinds of components.

And, the first component 41 can communicate with one or more components (eg, third and fourth components 43, 44), and the second component 42 can be one or more components (eg, a fifth And sixth component 45, 46.

For example, each of the first and second components may be one of an energy management unit, an energy measuring unit, a central management unit, an energy network assistance unit, and an energy consumption unit.

Each of the third to sixth components may be one of an energy generator, an energy distributor, an energy manager, an energy measurer, a central manager, an energy network assistant, and an energy consumer.

7 is a block diagram schematically illustrating a third application example of the network system according to the present invention.

Referring to FIG. 7, each of the components 51, 52, and 53 constituting the home network of the present embodiment may directly communicate with the utility network 20. That is, as in the first and second embodiments, there is no component serving as a gateway, and each of the components 51, 52, and 53 may communicate with the utility network.

8 is a block diagram of specific components that make up the network system of the present invention.

Referring to FIG. 8, a specific component 60 according to an embodiment may include a control unit 61, a communication unit 62, an input unit 63, a detection unit 64, a memory unit 65, and a display. A unit 66, a relay 67, at least one energy consumption unit 68, and a power variable component (69).

The control unit 61 may communicate with the communication means 62. In addition, the controller 61 consumes the energy based on one or more of information received from the communication means 62, information stored in the memory 64, and information input through the input 63. The unit 69 can be operated.

The control unit 61 may receive energy information or additional information other than energy (including information related to other components) through the communication unit 62.

The operating condition of the component 60 may be input using the input unit 63.

In addition, the input unit 63 may select a general mode and a smart mode for efficient energy management in relation to energy. In the present embodiment, the smart mode includes not only a mode for reducing energy consumption or an energy fee, but also a mode for effectively using such an energy storage when the energy fee is low. In addition, before the operation of the specific component is started, the input unit 63 may be used to select a normal mode or a smart mode. In addition, while a specific component is operating in the selected mode, it may be changed to the normal mode or the smart mode.

The detector 64 may detect an operation state of the specific component. The detection unit 64 may be a current sensor for detecting a current applied to the energy consumption unit 68, a door detection sensor for detecting a door opening, a temperature sensor for detecting a temperature, and the like.

The memory unit 65 may store information input through the input unit 63, information received through the communication unit 62 (energy information or additional information, etc.) or information related to the first component. . The information related to the first component may include operation or state information, energy consumption information, and the like.

The memory unit 66 may store information input through the input unit 62, information received through the communication unit 64 (energy information or additional information, etc.) or information related to the first component. . The information related to the first component may include operation or state information, energy consumption information, and the like.

The display unit 65 may store information input through the input unit 62, information received through the communication unit 64, or information related to the specific component 60. The information related to the specific component 60 may display operation or state information, energy consumption information, or the like of the specific component 60. For example, when the specific component 60 is in an abnormal state, it may be displayed.

The relay 68 may cut off electricity applied to the energy consumption unit 68. The energy consumption unit 68 may be, for example, a motor, a compressor, a heater, or the like.

The power variable component 69 may cut off electricity supplied to the specific component 60 itself.

The relay 68 cuts off power of some components of the component, and the power variable inspecting component 69 cuts off electricity itself to the component.

9 is a flowchart illustrating a method of controlling a specific component of FIG. 8.

8 and 9, the specific component 68 is operated using power (S1). In addition, while the specific component 60 is operating, the controller determines whether the specific component is in an abnormal state (S2). When the specific component is in an abnormal state, the specific component performs a safe mode (S3).

When the specific component is in an abnormal state, a short circuit occurs. For example, when the input current and the output current of the energy consumption unit 68 sensed by the current sensor are different, it may be detected that a short circuit occurs.

In addition, when the current applied to the energy consumption unit 68 or the specific component 60 exceeds the reference value for a predetermined time may be determined to be an abnormal state. For example, when a heater operates in a state where no washing water is in the washing machine, excessive current may be applied to the heater, and in this case, it may be determined to be an abnormal state.

In addition, when the difference between the current energy consumption of the energy consumption unit 68 or the specific component 60 when performing a specific mode or function and the energy consumption when performing the same mode or function existing exceeds a predetermined value It may be determined as a state. In detail, the memory unit 65 may store operation information and energy information of the specific component 60. Accordingly, the controller 61 may recognize the amount of energy consumed when the specific component 60 or the energy consumer 68 performs the specific mode. It can be determined whether the abnormal state through the comparison of.

For example, if the total energy consumption when the washing machine is operating in the standard course is 1000wh, but the total energy consumption of the washing machine currently operating in the standard course exceeds 1020wh, which is a standard, it may be recognized as abnormal.

In addition, when a specific function execution time of a specific component exceeds a time limit, it may be recognized as an abnormal state. For example, when the discharge duct of the dryer is blocked, the drying efficiency may be lowered and the drying time may exceed the time limit, in which case it may be recognized as an abnormal state.

As another example, when the dehydration execution time of the washing machine is longer than the reference time or when the dehydration process does not enter during the reference time, it may be recognized as an abnormal state.

As another example, in the case of a refrigerator, the compressor may operate over a time limit when the door is open, in which case it may be recognized as an abnormal state. The compressor is periodically turned on / off to maintain the set internal temperature. Then, the compressor is turned off when the internal temperature reaches the lower limit lower than the set temperature. In the case of the refrigerator, the door sensor detects whether the door is opened or closed. At this time, the door is actually opened due to a malfunction or damage of the door sensor, but the door sensor may determine that the door is detected. In this state, since the internal temperature of the refrigerator is not lowered by the indoor air, the compressor is operated in excess of the reference time.

In addition, the abnormal state may be determined by comparing the accumulated driving information of the specific component 60 with the current driving information. In detail, the memory unit 65 may store operation information of a specific component under a specific condition. For example, the target temperature of the component according to the outdoor temperature may be stored.

At this time, even if cooling is selected at a specific temperature (for example, outdoor temperature 10 degrees) (when the selected mode under a specific condition is different from the existing cumulative information), or even when heating is selected, the set target temperature (20 degrees) ) Can be recognized as abnormal when there is a difference between the existing information value (when the minimum value of the existing target temperature is 22 degrees) and the reference value or more (if the set value under a specific condition differs from the existing cumulative information).

On the other hand, in the safety mode of the specific component, it is possible to block the current applied to the specific energy consumption unit 68 by the relay 67, or to cut off the power itself applied to the component through the power variable component 69. (For example, if a short circuit occurs). Thus, damage to the component or the energy consuming part constituting it can be prevented.

In addition, in the safety mode of the specific component, abnormal state information (warning information) of the component may be displayed on the display unit. Of course, although not shown, abnormal state information may be known in the light emitting unit, the sound generating unit, and the like. In the present invention, the display unit, the light emitting unit, and the sound generating unit constitute an information notification unit.

In this case, in addition to the information indicating the abnormal state, information to be checked or performed by the user in the abnormal state (door openness confirmation, target temperature change, other function selection, etc.) may be displayed together.

In the safe mode of the specific component, abnormal state information may be transmitted to another component through the communication means. For example, when an abnormal state of a specific component is transmitted, the information is transmitted to a mobile device (energy network auxiliary unit) so that a remote user can check the information. As another example, the abnormal state information of the specific component may be transmitted to the service center or the 119 computer center of the component through the Internet server. As another example, the abnormal state information may be transmitted to the central management unit, the energy management unit, and the like.

According to the present invention, by cutting off the current or power in an abnormal state of a particular component, there is an advantage that unnecessary energy consumption in a particular component is reduced.

In addition, since the abnormal state of the component can be displayed to the outside, there is an advantage that the user can easily check.

10: utility network 20: home network

Claims (19)

In the control method of a network system including at least one component for the energy-related operation,
Operating the particular component;
Determining an abnormal state in an operation of the specific component; And
And when the abnormal state is recognized, performing the safe mode by the specific component. The method of claim 1,
The abnormal state is a control method of a network system in which a value exceeding a reference value is applied to the component or a value exceeding a reference value is applied to an energy consuming part constituting the component. The method of claim 1,
The abnormal state is a control of a network system when the difference between the current energy consumption of the specific component when the component performs a specific mode or function and the energy consumption when the existing same mode or function is performed exceeds a predetermined value. Way. The method of claim 3, wherein
The component includes a memory unit for storing the energy consumption during the existing operation method of the control of the network system. The method of claim 1,
The abnormal state is a control method of a network system when a specific function execution time of the specific component exceeds a time limit. The method of claim 1,
The abnormal state is a control method of a network system when a specific mode or function of the specific component does not start for a predetermined time. The method of claim 1,
The abnormal state is a control method of a network system that can determine the abnormal state by comparing the current operation information and the cumulative operation information of a specific component. The method of claim 7, wherein
The abnormal state is a control method of a network system when the selected mode under a specific condition is different from the existing cumulative information or when a setting value under a specific condition is different from the existing cumulative information. The method of claim 1,
The control method of the network system in the safety mode, the power applied to the specific component or the current applied to the energy consumption unit constituting the specific component is cut off. The method of claim 1,
In the safe mode, the abnormal state information of the component can be known to the outside of the component. The method of claim 10,
A control method of a network system in which information to be checked or performed by a user in the abnormal state is known together with the abnormal state information. The method of claim 1,
In the safe mode, a control method of a network system for transmitting abnormal state information to another component. The method of claim 1,
And the one or more components perform one or more functions of energy generation, distribution, consumption, measurement, management, and storage. Includes one or more components for energy related operations,
The component includes communication means for communication; And
A control unit for recognizing an abnormal state of the component is included,
And when the abnormal state is recognized, the specific component performs a safe mode. The method of claim 14,
The component further includes a sensing unit for sensing a state of the component,
The control unit recognizes the abnormal state of the component by using the information detected by the detection unit. The method of claim 14,
The component further includes a memory unit capable of storing operation or state information of the component,
The control unit recognizes an abnormal state by comparing the information stored in the memory unit with the current operation information of the component. The method of claim 14,
The component further comprises a relay for blocking a current applied to a power variable component for cutting off power applied to the specific component or an energy consumption unit constituting the specific component. The method of claim 14,
The component further includes an information notification unit for notifying abnormal state information of the component to the outside. The method of claim 14,
And when the abnormal state information is recognized, the abnormal state information is transmitted to another component through the communication means.

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