KR20120034890A - Method and system of transmitting power information for smartgrid - Google Patents

Abstract

PURPOSE: A method and system for transferring power information which is able to apply to a smart grid are provided to maximize an energy reduction effect by using a demand reaction message such as real-time electric charge and electricity consumption pattern information of an electric power user. CONSTITUTION: Local domain policy servers(220-250) analyze power information by collecting the power information. The local domain policy servers transfer the analyzed power information to a global domain policy server(210). The local domain policy servers and the global domain policy server effectively manage policy based power Information by analyzing policy based power Information. The local domain policy servers periodically receive an HBeat(HeartBeat) message showing current status information and diagnose an AMI(Advanced Metering Infrastructure) state through the HBeat message.

Description

Method and system for delivering power information applicable to smart grid {METHOD AND SYSTEM OF TRANSMITTING POWER INFORMATION FOR SMARTGRID}

The present invention discloses a method and system for delivering power information for a smart grid. Looking in more detail, it provides a PBNM-based power information management method and system.

Various techniques have been proposed to use communication using power lines. The existing power grid consists of one-way communication in analog form. Therefore, due to the nature of unidirectional communication, the existing power grid does not provide a function for demand response (DR) of power information, and due to the lack of such a function, the existing power grid has limited user control and management. When applying the smart grid, an intelligent power grid using power lines, the above-mentioned problems can be solved, and research on the introduction of the smart grid has been actively conducted recently.

The present invention is to provide a real-time, two-way communication by overcoming the analog one-way communication of the existing power grid.

In addition, the present invention enables the response of the demand of power information, such as real-time electricity bill and electricity consumption pattern information of the power user, to maximize the energy saving effect, and to improve the reliability of the power user by using the failure diagnosis message We want to implement smart grid.

In order to achieve the above object, the power information transmission system applicable to the smart grid according to an embodiment of the present invention measures the power information of the home, receives a user command for instructing the control of the power information, the result And a policy server for collecting and analyzing the power information, wherein the user terminal transmits power information or current state information to the policy server, and the policy server reflects the received information in a local policy. And generating the service requested by the user terminal into a message in a form that can be controlled by the user terminal and transmitting the generated service to the user terminal.

According to another aspect of the present invention, there is provided a power information transmission method applicable to a smart grid, the method comprising: checking a power consumption amount, transmitting a power information transmission command to a server, and a message including information generated by the server according to the command Receiving the; and outputting the received message.

According to another aspect of the present invention, there is provided a power information transmission method applicable to a smart grid, the method comprising: receiving a power information transmission command from a user terminal, generating a message including information requested by the command, and transmitting the generated message to the user terminal; And receiving the command and transmitting a message therefor in real time, and receiving the current state information from the user terminal in real time.

When applying an embodiment of the present specification, it is possible to implement a power overlay network (PON) for implementing a power grid of a smart grid, which is an intelligent power grid, and to perform policy-based network management, and bidirectional digital power information in the implemented PON. Based on the real-time transmission, the smart grid, an intelligent power grid that maximizes energy savings by maximizing energy savings by using demand response messages such as real-time electricity rates and electricity consumption pattern information, and improving the reliability of power users by using fault diagnosis messages. Can be.

1 is a diagram illustrating a configuration of a policy based system according to an embodiment of the present specification.
2 is an overall conceptual diagram of a power overlay network (PON) according to an embodiment of the present specification.
3 is a diagram showing a hierarchical management structure.
4 is a diagram illustrating an AMI technology interface according to an embodiment of the present specification.
5 is a schematic diagram illustrating a process for managing power information according to an embodiment of the present specification.
6 is a diagram illustrating a process of requesting and processing demand response (DR) information for a real-time electric service.
7 is a diagram illustrating information exchange between a home terminal and a policy server according to another embodiment of the present specification.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, in describing the component of this invention, terms, such as 1st, 2nd, A, B, (a), (b), can be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but between components It will be understood that may be "connected", "coupled" or "connected".

SmartGrid is an intelligent grid that combines the existing grid with IT (Information Technology) technology. It is a next-generation power grid that enables electricity providers and consumers to create new added value by exchanging information in both directions in real time and optimizing energy efficiency. Key components for building a smart grid include smart meter-centric Advanced Metering Infrastructure (AMI), Demand Response System (DRS), and Energy Management System (EMS). According to an embodiment of the present disclosure, by applying the Policy Based Network Management (PBNM) of the Internet Engineering Task Force (IETF), electricity consumption patterns such as the current real-time electricity rate information of the power user and the hourly differential rate plan It can provide demand response information of information and troubleshooting message delivery management technology. To this end, the policy server of the global global domain may make a decision based on the demand response message of the power user and apply it to policy information management. In addition, smart grid (intelligent electric power grid) management using a hierarchical structure may be provided, including a home area network (HAN), a neighbor area area network (NAN), and a wide area network (WAN).

As a result, a PBNM-based hierarchical structure can implement a power service PON (Power Overlay Network) for smart grids that efficiently manage and manage the demand response of digital power information in both directions. That is, in the present specification, a power overlay network (PON) may be used to efficiently use non-uniformity of power consumption (for example, to operate a washing machine when the electric charge is low, or to charge an electric vehicle with late night power). I use it. PON applies Policy Based Network Management (PBNM) to effectively manage AMI-based power information. Looking in more detail as follows.

1 is a diagram illustrating a configuration of a policy based system according to an embodiment of the present specification.

The policy of network operation is the principle and plan of how to use with all the information about the current resources. In a distributed network environment, policy-based network management (DR) is used to utilize current real-time electricity rate information of electricity users, demand response (DR) information of electricity consumption pattern information such as hourly differential rate plan, and fault diagnosis message delivery management technology. PBNM: Policy Based Network Management technology is applied. Policy-based management structure in the Internet Engineering Task Force (IETF) is configured as shown in FIG. The policy system consists of a policy server (PS) and a policy target (PT) which is a policy client.

The server PS includes a Policy Management Tool (PMT), a Policy Repository (PR), and a Policy Decision Point (PDP) component for determining a policy. The client corresponds to a Policy Enforcement Point (PEP) component as a policy target. The policy decision unit (PDP) analyzes the status through report information or requested information from the policy execution unit (PEP) to determine the policy, finds the necessary policy in the policy store, and decides the policy, and the policy execution unit ( To PEP). The components of the PEP are home AMIs and IHDs, and the policy document PDP can act as an EMS. The Common Open Policy System (COPS) protocol is used to deliver the demand response (DR) information, and the HBeat (HeartBeat) message can be used to diagnose the Advanced Metering Infrastructure (AMI). The HBeat message is a message sent from the originator to the destination so that the destination can check whether the source has a problem with operation. Normally it can be sent periodically until the source is shut down. Therefore, if the transmission interval of the HBeat message is longer than the expected period, the destination can confirm that a problem has occurred on the source side.

The policy management unit uses PFDL (Policy Framework Definition Language) to convert network operation rules determined according to the purpose of the network operator server and the operator's goals into consistent policy data. In the policy-based network, digital power information, including demand response information, is stored in the policy repository (PR), retrieved in real time by the distributed policy decision unit (PDP) in the network, and data received in the policy repository (PR) It consists of policy decision conditions for policy determination and policy actions that must be applied according to the determined policy. Lightweight Directory Access Protocol (LDAP), which is widely used in directory services, is used as a protocol for querying stored policies or storing created new policies.

In FIG. 1, COPS and HBeat are standard protocols used for communication between the server's policy decision unit (PDP) and the client's policy execution unit (PEP), and have the following functions and characteristics.

IETF's COPS is a simple query / response protocol based on TCP for the transfer of policy information between a policy server (policy decision unit, PDP) and a client (policy execution unit, PEP) in a policy-based network. COPS supports various client types through extension without modifying the protocol itself. COPS is a policy delivery protocol for the policy provision and control of the upper domain based on TCP.

It also uses periodic HBeat messages to diagnose the status of the Advanced Metering Infrastructure (AMI).

In FIG. 1, the server holds predetermined policy information, and may control to supply power according to this policy. The LDAP protocol may be used as an embodiment for querying a policy or delivering a new policy. LDAP is a software protocol that allows you to locate organizations, entities, and resources such as files and devices on a network, such as the Internet or intranets within an enterprise. You can use LDAP to see what resources are on the network. In general, Internet service (TCP / IP) and DNS provide connection information between a network address and a domain, and LDAP enables retrieval of the information without knowing where the object is. An LDAP directory is a hierarchical tree structure.

2 is an overall conceptual diagram of a power overlay network (PON) according to an embodiment of the present specification.

PON (Power Overlay Network) is to manage power information by applying Policy Based Network Management (PBNM) .It provides policy management at the network level to manage power information in next-generation converged networks such as broadband convergence network (BcN). By integrating and managing this centrally, it provides real-time power information to end users and enables systematic and organic interworking between systems. In the PON of FIG. 2, the IEB PBNM is applied for efficient energy management of the smart grid to provide power consumers with DR information of electricity consumption pattern information such as real-time electricity rate information and hourly differential rate plan, and the status diagnosis message delivery management technology of the AMI. Can be provided. Global Domain Policy Server (GDPS) enables efficient energy usage by making energy use decisions based on the DR consumer's DR information needs. Effective smart grid management with a systematic hierarchical structure is possible, including HAN (Home Area Network), NAN (Neighborhood Area Network), and WAN (Wide Area Network).

In Policy-Based Network Management (PBNM), we discussed earlier that it consists of a Policy Server (PS) and a Policy Target (PT), which is a policy client. Global Domain Policy Server (GDPS) refers to EMS that performs overall energy management using power billing system, user information system, AMI server, web system, and demand response (DR) system. PT stands for power consumer's home It refers to AMI and user terminal (IHD) with smart meter function and bidirectional communication function. The PBNM is managed hierarchically at the global network level, and the PT delivers the power information measured by the AMI to the power consumer home to the Local Domain Policy Server (LDPS), which installs regionally. do. And the power information of LDPS is delivered to GDPS. The power information reported in the PON as GDPS in the present specification is the electricity consumption, DR information, and AMI status diagnosis information of the AMI, which is real-time electricity consumption data, and the information delivered in the GDPS includes real-time rate data and DR information, and regional or Policy information that can be applied globally. Therefore, GDPS can calculate real-time rate data based on power consumption data sent from AMI-based power consumers in individual homes, and can deliver not only electricity rate information but also DR information of electricity consumption patterns such as hourly differential rates to PT.

In the bottom of the PON in Figure 2 is an AMI that measures the power information of the home. The AMI is an evolution of automated meter reading (AMR), which is a one-way digital meter, which enables a variety of additional services through two-way communication between power consumers and power providers. The AMI corresponds to a policy execution unit (PEP) as a PEP together with an In A Home Display (IHD). The Policy Server (PS) is also the PDP. The AMI was introduced to improve the accuracy and reduce costs of the original Automated Meter Reading (AMR). As the need grows, the evolution from AMR to AMI consists of a smart meter, an electronic electricity meter, and a communication network terminal that performs the function of communication. It is possible to monitor the power consumption of home appliances by short-range wireless communication, etc. From the user side, the AMI provides power consumption information to the user terminal IHD and the server PS The user (power consumer) is the user terminal (IHD). ) Can communicate with the AMI to know exactly how it is being consumed according to the price information provided by the server (PS). The power consumer can make a variety of decisions and choices based on the information obtained through the AMI, using the AMI data to make economical energy consumption decisions using interactive services. Power information is collected and analyzed from the upper level Domain Policy Servers (LDPS: 220, 230, 240, 250) and forwarded to the Global Domain Policy Server (GDPS: Global Domain Policy Server, 210). In addition, the LDPS periodically receives an HBeat message indicating the current status information of the AMI, and diagnoses the AMI status by using this information. It can be applied to a policy and passed on to the GDPS for global policy application. An example of a power information reported from the GDPS PON at a later issued to the determined policy. Figure 2 is the electrical amount of the AMI (Metering Info), DR information (DR Info. Request), AMI Health Diagnosis (HBeat), and power information delivered to PT by GDPS may be DR Info including real-time power bill data, policy information, and the like. GDPS calculates real-time rate data based on power consumption data sent by AMI-based power consumers in the home, and delivers not only electricity rate information but also DR information of electricity consumption patterns such as time-differentiated rates to PT.

3 is a diagram showing a hierarchical management structure.

Hierarchical management structure can manage regional power information by applying PBNM framework to provide structured and systematic integrated power information management. The PBNM framework provides the ability to consistently control the operation and management of network resources according to common policies. The PBNM framework is a policy system and has a management structure composed of a policy server (PS) and a plurality of policy targets (PT) managed by the policy server. Here, the policy target (PT) is the user terminal (IHD) and the AMI, and the domain managed by the policy server (PS) with a consistent policy is called a domain. The situation occurring in this domain is transferred to the LDPS and systematically and comprehensively managed. Can be propagated to the proximal domain. Perimeter routers can be used for regional power policies. Based on this, it is possible to determine the policies to be applied at the network level and to manage them collectively.

2 and 3, the user terminal measures power information of the home, receives a user command instructing control of the power information, and displays a result thereof. The policy server collects or analyzes the power information. In this process, the user terminal transmits power information or current state information to the policy server, and the policy server reflects the received information to a local policy, and the user terminal controls the service requested by the user terminal. It generates a message in a form that can be transmitted to the user terminal. In this case, the user terminal may be an IHD alone or a configuration further including an AMI. A terminal including both IHD and AMI may be referred to as a home terminal. In more detail, when the service requested by the user terminal (home terminal) is a service requesting power consumption information, the policy server may generate and transmit power consumption information of a home controlled by the user terminal (home terminal). have. On the other hand, if the service requested by the user terminal (home terminal) is a service requesting a failure diagnosis service, the policy server may check whether the failure diagnosis by diagnosing the power grid of the system. That is, since such information is exchanged in real time, and the failure diagnosis can be performed in the server, it is possible to create an energy saving effect and to improve the reliability of the power grid.

The policy server may be configured in a hierarchical structure as described with reference to FIGS. 2 and 3, and includes an upper domain policy server (LDPS) in which power information is collected and analyzed, and a global domain policy server receiving information from the upper domain policy server ( GDPS).

In FIGS. 2 and 3, power information, for example, information on power consumption may be provided in real time, and the consumption information may be patterned. The patterning of the consumption information may pattern the consumption information for each time zone or for each day of the week. Therefore, the power is supplied by differentially dispensing a large consumption case and a small consumption case so that the power distribution can be efficiently operated.

4 is a diagram illustrating an AMI technology interface according to an embodiment of the present specification. 4 illustrates an AMI technology interface of a power provider and a power consumer, and is divided into a communication layer 430, a measurement layer 420, and a consumer portal layer 410. The lowest communication layer performs the function of transmitting and receiving power information of the measurement layer, and the measurement layer measures the real-time power usage, that is, the power consumption data of the smart meter, and delivers it to the power providers. Installed in the home of the power consumer, the IHD (In Home Display) can see the data transmitted from the smart meter and the communication and can be more accurately aware of its consumption. In addition, the usage can be controlled according to the power price information sent by the power provider, and the power can be used in the desired power price time zone according to the requested DR information. In addition, AMI data is leveraged through the AMI technology interface to provide economical energy consumption decisions by providing interactive services such as prepayment through the power consumer portal.

AMIs enable real-time checks of power usage and two-way communication between power providers and users, which provides metering costs and energy savings for power providers and power consumers. AMIs can introduce new billing and communication technologies and provide services by various applications. The AMI, which combines smart meter and communication functions, can convert the measured power signal into a digital signal and send it to the display of the power provider or the power consumer's home. Herein, an embodiment of the communication technology may apply IEEE 802.15.4a Chirp Spread Spectrum (CSS). Wireless personal area network (WPAN) technology may be applied to reliably transmit measurement information of an AMI.

In AMI-based smart grid communication networks, what is needed is fast and accurate information delivery. The smart meter delivers real-time fluctuating power prices to power consumers and delivers their time-phased power usage to power providers. The functions that must be provided by the communication network for the Smart Grid include: 1) the delivery of information related to the operation of the system should be prioritized; and 2) demand management or demand response should be prioritized. Adjustment is required. In addition, 3) it is necessary to accommodate data of various characteristics such as delay time, jitter, and loss, and 4) provide a standard interface for connecting various types of consumer facilities and power devices. In addition, 5) reliability must be provided by the seamless survivability of the network, and security must be provided for the safe transmission of information.

5 is a schematic diagram illustrating a process for managing power information according to an embodiment of the present specification.

In a PBNM configuration, there is an AMI at the home level, and the information measured by the AMI is passed to LDPS, which is also passed to GDPS. The policy server (PS) performs a decision mechanism based on the information collected by the AMI. Looking at the operation overview of the PON in Figure 5 the user checks the power consumption (S510) and requests the request response (DR) information module to the policy server (S520). Electric services that can be processed through the demand response (DR) information module are electricity consumption pattern information such as real-time electricity rates and hourly electricity rates. The policy server provides the DR information module to the user, and the user TS receives the demand response (DR) information module (S530). After the request service preprocessing (S540), the user may receive a desired service.

The information requestable by the user includes real-time electricity rate information (S553) and demand response (DR) information (S556), which is electricity consumption pattern information meaning information on an electricity rate which is given by time zones. Based on this, the policy server (PS) can be utilized as a service by statistically analyzing the electricity consumption consumed by the user. There is a periodic transmission message (HBeat) indicating that the AMI is operating normally. Of course, a service for diagnosing and confirming a failure is also possible (S559). The user can use the service by transmitting the corresponding service command (S560).

PON is an overlay network that connects PBNM's policy-based network management technology for smart grids to existing networks and integrated networks such as next-generation BcN. It can use the network resources of the existing WAN as it is and is a management technology that can be integrated and connected with the advanced technologies of the next generation network. The Global Domain Policy Server (GDPS) maintains a centralized system, which enables collective policy configuration on a network basis. PON is the only alternative to network management that enables smart grids.

In one embodiment of the electric service processable in FIG. 5 may be the confirmation of the real-time electricity rate and the consumption pattern information of the electric rate that is differentially provided, which may be variously converted and set in the user terminal (home terminal). For example, if the electricity usage in a certain time period (7 pm-12 pm) is a certain criterion of the total electricity consumption, for example, 80% or more, the electricity rate of the time period is lowered, and the electricity rate in other time periods. Can be patterned to impress. In addition, if the amount of electricity used on a particular day of the week (weekend) is a certain criterion of the total electricity consumption, for example, 70% or more, the electricity rate of the day of the week may be lowered and the pattern may be increased to increase the rate of electricity on other days. . In setting this consumption pattern, compared to other consumers' electricity usage patterns in the region, it is possible to reduce the electricity bill more, less, or more or less.

The setting of the consumption pattern can be controlled by the user through the user terminal (home terminal) in the home, the set information may be provided in the LDPS, optionally provided in the GDPS. This may vary according to the range of information or power supply of LDPS and GDPS, and the increase / reduction criteria may also be implemented according to various embodiments. The energy saving process for the home may be performed at the user terminal (home terminal) through the consumption pattern.

6 is a diagram illustrating a process of requesting and processing demand response (DR) information for a real-time electric service.

FIG. 6 is a diagram illustrating a process of requesting and processing DR information for a real-time electric service used by a user in a PON conceptual diagram for managing PBNM-based power information of FIG. 2. The user of the home unit can use the electric service in the PBNM using the process shown in FIG. 5. The user checks the amount of power consumed by the AMI through the user terminal (IHD) (S610). In addition, the required command may be requested (S620). First, when the real-time electricity rate is requested to the policy server in order to calculate the rate for the power consumption (S630). The policy server PS receives the user's request for information and transmits the electric charge in real time (S660 and S670). The user checks the electricity usage and the electricity bill. A user who needs energy saving requests DR information from the policy server (S640). The policy server PS receives the user's information request and transmits DR information (S680 and S690). If the user wants to save energy by checking the electricity charges given by the time zones, the user uses electricity at the time when energy saving is possible using the received DR information, thereby bringing the electricity rate reduction effect by changing to a reasonable consumption form. Lastly, by checking the diagnostic status information of periodic AMIs as in S650 and S655 processes, the reliability of the power usage measurement status can be improved.

The process of Figure 6 can be divided into the entry of the server and the entry of the user terminal can be confirmed as follows. For example, the process that is developed in the position of the user terminal is as follows. The user terminal may include the IHD or the AMI and may be the home terminal described above. That is, the user terminal (home terminal) confirms the amount of power consumption, and transmits a power information transfer command to the server. The method may be implemented by receiving a message including information generated by the server according to the command and outputting the received message.

In this process, the command may be one of a command for electricity usage, a command for demand response, or a diagnostic command. In particular, when the command is a command for a demand response, the method may further include performing an energy saving process by checking an electric charge that is differentially provided at each time interval in the received information on the demand response.

In addition, the process developed from the server's point of view is as follows. This can be done at the policy server and can cover both LDPS and GDPS. That is, the policy server may receive a power information transfer command from a user terminal (home terminal), generate a message including information requested by the command, and transmit the generated message to the user terminal (home terminal). At this time, the reception of the command and the transmission of the message thereof are made in real time, and the reception of the current state information from the user terminal can be made in real time. In addition, the command may be any one of a command for electricity usage, a command for demand response, or a diagnostic command, and a service providing method of the server for these commands may be S660, S680, S655, and the like of FIG. 6. have.

When applying an embodiment of the present specification, it is possible to implement a power overlay network (PON) for implementing a power grid of a smart grid, which is an intelligent power grid, and to perform policy-based network management, and bidirectional digital power information in the implemented PON. Based on the real-time transmission, the smart grid, an intelligent power grid that maximizes energy savings by maximizing energy savings by using demand response messages such as real-time electricity rates and electricity consumption pattern information, and improving the reliability of power users by using fault diagnosis messages. Can be.

7 is a diagram illustrating information exchange between a home terminal and a policy server according to another embodiment of the present specification.

The home terminal measures various environmental information including power information of the home. The home terminal includes the above-described AMI and IHD. The measured information is transmitted to the policy server, which can be divided into LDPS 710 and 720 and GDPS 730 as described above. The home terminals 711, 712, 713, and 714 measure information generated in the home, receive power information such as power consumption for the home from the LDPS 710, 720, and set a power consumption pattern. The set information can be transmitted to the LDPS 710 and 720. The LDPS (710, 720) selects the information that needs to be confirmed in the global domain policy server or known to the entire domain from the received information and provides it to the GDPS (730). Similarly, the GDPS 730 may provide the LDPSs 710 and 720 with the information that is determined or changed at the entire domain level to be reflected to the home terminals 711, 712, 713, and 714, which are final terminals. have.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

100: server
210: GDPS
220, 230, 240, 250: LDPS

Claims (11)

A user terminal for measuring power information of a home, receiving a user command instructing control of power information, and displaying a result thereof;
A policy server through which the power information is collected and analyzed;
The user terminal transmits power information or current state information to the policy server,
The policy server reflects the received information in a local policy, and generates a service of the form requested by the user terminal in a form that can be controlled by the user terminal and transmits the generated message to the user terminal. Applicable power information delivery system.
The method of claim 1,
If the service requested by the user terminal is a service for requesting power consumption information, the policy server generates power consumption information of the home controlled by the user terminal, power information delivery system applicable to the smart grid.
The method of claim 1,
When the service requested by the user terminal is a service for requesting a failure diagnosis service, the policy server is characterized in that the diagnosis of the failure diagnosis by diagnosing the power grid of the system, power grid information system applicable to smart grid.
The method of claim 1,
The policy server may be a higher domain policy server through which power information is collected and analyzed;
And a global domain policy server receiving information from the upper domain policy server. Applied to the smart grid, power information transmission system.
The method of claim 4
The policy server is configured in a hierarchical management structure, power information delivery system applicable to the smart grid.
The method of claim 1,
The power information transmission system transmits the power information message in real time from the PON, and the power information transmission system is characterized in that policy-based network management is applied, power information delivery system applicable to the smart grid.
Checking the power consumption;
Transmitting a power information transfer command to a server;
Receiving a message including information generated by the server according to the command; And
And outputting the received message, wherein the power information is applicable to the smart grid.
The method of claim 7, wherein
The command is any one of a command for electricity usage, a command for demand response, or a diagnostic command, power information transfer method applicable to the smart grid.
The method of claim 7, wherein
If the command is a command for the demand response, further comprising the step of checking the electricity rate given by the time period from the information on the received demand response to proceed the energy saving process patterned consumption consumption, smart grid Possible power information delivery method.
Receiving a power information transfer command from a user terminal;
Generating a message including information requested by the command and transmitting the message to the user terminal;
The reception of the command and the transmission of the message thereof are performed in real time, characterized in that the reception of the current state information from the user terminal in real time, power information transfer method applicable to the smart grid.
The method of claim 10,
The command is any one of a command for electricity usage, a command for demand response, or a diagnostic command, power information transfer method applicable to the smart grid.

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