KR20140015745A - Agent based energy management system and method - Google Patents

Abstract

The present invention relates to an agent-based energy management system (EMS) and method, which distribute a centralized operation algorithm to the lower agents and optimize the operation algorithm to improve the whole performance of the system. The agent-based energy management method, which enables real-time monitoring of at least one plant to be managed on a micro-energy grid and the control of energy production and consumption in the plant to be managed in the agent-based EMS having an EMS server and lower agents connected to the EMS server, comprises the steps of: allowing the EMS server to establish a transaction and scheduling plan for remote monitoring, for generation management, and for system operation of the plant to be managed; and allowing a plurality of lower agents arranged to partially assume the role of the EMS server to perform real-time control or emergency control on the plant to be managed, based on the transaction and scheduling plan of the EMS server, wherein each of the lower agents acquires data corresponding to the role thereof from the plant to be managed and processes the acquired data. [Reference numerals] (110) EMS server (Upper agent); (121) First lower agent; (122) Second lower agent; (AA,BB) Plant to be managed

Description

[0001] AGENT BASED ENERGY MANAGEMENT SYSTEM AND METHOD [0002]

The present invention relates to an agent-based energy management system and method, and more particularly, to an agent-based energy management system and method capable of improving the performance of the entire system by distributing a centralized operation algorithm for each sub- .

Micro Energy Grid (MEG) is a next-generation energy technology that combines smart grid, distributed power, and building energy. MEG is a total energy solution for efficient building of energy control building and energy self-sufficient city by efficiently managing energy production and use, and various research and development is underway.

In order to reduce greenhouse gas, advanced countries, as well as Korea, are obliged to make high efficiency and control energy for buildings and plants with high energy consumption. Various efforts have been made to apply the distributed power source to buildings and to improve the energy efficiency of buildings according to the atmosphere.

For example, to apply distributed power sources such as solar power generation, energy storage, small gas turbines, solar power generation, fuel cell power generation, and wind power generation to buildings, MicroGrid EMS (Energy Management System) Various efforts have been tried, such as integrating a real-time demand management program to reduce power demand of a building, or applying an intelligent building power control system.

An example of a conventional energy management system is disclosed in Korean Patent No. 1079929 (Oct. 28, 2011). In the prior art of this publication, various energy-related information such as use time of an electric device, consumed electric power, electric charge and the like are displayed in an apparatus provided for each electric device, and the operation of each electric device is controlled so that limited energy can be used more efficiently .

However, since the above-described conventional technology has a structure for controlling a lower management device provided for each electric device in a central server, there is a disadvantage that it adversely affects the operation of each electric device when communication between the central server and the lower management device is broken. In addition, when the problem occurs in a specific electric device, it is difficult to effectively cope with the problem of the electric device because the problem of the electric device is not recognized in real time.

In this way, since most conventional technologies use a centralized operation algorithm, it is impossible to operate sub-equipment due to communication disconnection between the central server and sub-devices in the event of an emergency, and immediate maintenance and remote maintenance for normal operation There is a difficult problem. In addition, there is a disadvantage in that, in case of an unplanned situation, it is practically impossible to cope with real time.

Korean Registered Patent No. 1079929 (Oct. 28, 2011)

It is an object of the present invention to provide an agent-based energy management system and method capable of improving the performance and reliability of the entire system by distributing a centralized operation algorithm to each agent and optimizing an operation algorithm.

Another object of the present invention is to provide a system and method for real-time control of a plant to be managed in the field at a sub-agent level in case of urgent control such as in an emergency situation, and to reliably and systematically acquire and process data from the plant under management And to provide an agent-based energy management system and method that can perform the same.

According to an aspect of the present invention, there is provided an agent-based energy management system including an EMS (Energy Management System) server and a sub-agent connected to an EMS server, An agent-based energy management method for real-time monitoring of a single plant to be managed and controlling production and consumption of energy in the plant to be managed, the method comprising the steps of: monitoring, managing, And establishing a scheduling plan; And performing a real-time control or an emergency control of the managed plant in accordance with a transaction and scheduling plan of the EMS server in a plurality of sub-agents installed to be responsible for part of the roles of the EMS server, wherein the sub- And acquires and processes the data corresponding to its own role.

In one embodiment, the EMS server and the subagent are configured to perform a transition between a normal mode and an emergency mode, or between a normal mode and a violation mode, a transition between an emergency mode and a violation mode, an emergency mode or a failure mode, And an initialization step from a failure mode to a normal mode, and the normal mode, the emergency mode, the violation mode, and the failure mode are set according to the state of the managed plant.

In one embodiment, performing real-time control includes controlling a managed plant in accordance with a real-time control scenario established by the sub-agent under normal mode based on real-time control scheduling of the EMS server.

In one embodiment, performing real-time control comprises: executing sub-agent under an operating cost minimization mode according to a real-time control scenario under normal mode; And when the demand response signal is received from the integrated operation center under the operation fee minimization mode, the sub-agent interworking with the EMS server executes the demand response mode for the load follow-up control operation according to the real-time control scenario.

In one embodiment, executing the operating cost minimization mode includes determining a reference output of the distributed power supply to minimize the electrical and thermal energy supply cost before the energy trading day, and a charge and discharge amount of the energy storage device do.

In one embodiment, executing the demand response mode includes redistributing the output of the distributed power supply to provide a varying electrical load relative to a reference output of the managed plant.

In one embodiment, the step of executing the demand response mode comprises the step of redistributing the output of the distributed power supply for constant power control of the receiving point of the managed plant in the demand reaction time zone based on the demand response signal at the sub-agent do.

In one embodiment, the step of performing emergency control comprises the step of emergency control of the managed plant at the sub-agent level based on the emergency control scenario established by the sub-agent under the emergency control scheduling from the EMS server under the emergency mode .

In one embodiment, performing emergency control comprises: obtaining emergency state occurrence information from a managed plant at a sub-agent; Selecting a specific emergency control scenario corresponding to the emergency state occurrence information in the emergency control scenario established based on the emergency control scheduling from the EMS server; And emergency controlling the managed plant based on the selected emergency control scenario.

In one embodiment, performing the emergency control further comprises transmitting to the EMS server an emergency state alarm signal corresponding to the emergency state occurrence information in the sub-agent.

In one embodiment, an agent-based energy management method comprises: re-establishing a transaction and scheduling plan based on an emergency state alarm signal at an EMS server; Updating the emergency control scenario for the managed plant based on the re-establishment scheduling plan from the EMS server in the sub-agent; Further emergency control of the managed plant based on the updated emergency control scenario in the sub-agent; And returning to the normal mode in the emergency mode if the additional emergency control is successful in the step of emergency control, and proceeding to the violation mode or the failure mode in the emergency mode if the additional emergency control fails.

In one embodiment, performing emergency control comprises: obtaining emergency state occurrence information from a managed plant at a sub-agent; Recognizing a violation state of the plant to be managed based on the emergency state occurrence information; And selecting a particular emergency control scenario closest to the violation state in the emergency control scenario established based on the emergency control scheduling from the EMS server; And emergency controlling the managed plant based on the selected emergency control scenario.

In one embodiment, recognizing the violation condition includes failing to select an emergency control scenario corresponding to the emergency state occurrence information in the emergency control scenario of the sub-agent based on the emergency control scheduling of the EMS server.

In one embodiment, performing emergency control further comprises proceeding from failure mode to failure mode upon selection failure in the step of selecting the closest emergency control scenario.

In one embodiment, the step of performing emergency control further comprises the step of sharing, at the sub-agent, the violation state data corresponding to the violation state with the EMS server.

In one embodiment, an agent-based energy management method includes: adding a new case database based on the violation state data at an EMS server; Re-establishing a scheduling plan based on the new case database; Emergency management of the managed plant by applying the re-established scheduling plan in the sub-agent; And if the emergency control of the managed plant based on the re-established scheduling plan is successful, returns to the normal mode or the emergency mode in the violation mode, and if the emergency control of the managed plant based on the re-established scheduling plan fails, .

In one embodiment, an agent-based energy management method comprises: managing failure case information at a sub-agent after proceeding to a failure mode; And sending an offline action request signal of the managed plant to the default manager device.

In one embodiment, the agent-based energy management method further comprises performing self-protection initialization at the sub-agent. The agent-based energy management method may further include: transmitting failure case information from the sub-agent to the EMS server; Adding a new case database based on failure case information at the EMS server; And processing a predefined overall system offline situation action at the EMS server.

In one embodiment, an agent-based energy management method comprises: detecting an initializable state of a managed plant at a sub-agent after proceeding to a failure mode; Receiving initial state information of the managed plant from the sub-agent in the EMS server; Checking whether the plant can be initialized in the EMS server; And initializing the managed plant based on the plant initialization signal of the EMS server in the sub-agent.

An agent-based energy management system according to one aspect of the present invention is an agent-based energy management system that real-time monitors at least one managed plant in a micro energy grid and controls energy production and consumption in a managed plant, An EMS (Energy Management System) server that establishes a transaction and scheduling plan for remote monitoring, generation management, and system operation of the plant; And a plurality of sub-agents that are responsible for part of the roles of the EMS server and perform real-time control or emergency control of the managed plant in accordance with the transaction and scheduling plan of the EMS server, wherein the sub- The corresponding data is acquired and processed.

In one embodiment, the EMS server and the subagent are configured to switch between the normal mode and the emergency mode or between the normal mode and the violation mode, switch between the emergency mode and the violation mode, proceed to the failure mode in the emergency mode or the failure mode, And initialization from the normal mode to the normal mode, wherein the normal mode, the emergency mode, the violation mode, and the failure mode are set according to the state of the managed plant.

In one embodiment, the EMS server receives TOC information including market information and load information from a total operating center (TOC) under normal mode, and provides transaction and scheduling plans for real-time control and emergency control based on TOC information And transmits the established transaction and scheduling plan to the sub-agent. The sub-agent establishes a real-time control scenario and an emergency control scenario based on the transaction and scheduling plan of the EMS server under the normal mode, controls the managed plant in real time based on the established real-time control scenario, And shares the energy production status acquired from the management target plant with the EMS server.

In one embodiment, the EMS server receives the demand response signal from the integrated operation center under normal mode, re-establishes or corrects the transaction and scheduling plan in response to the demand response signal, and sends the modified transaction and scheduling plan to the sub-agent . The sub-agent re-establishes the real-time control scenario based on the modified transaction and the scheduling plan from the EMS server under the normal mode, and controls the managed plant in real time based on the re-established real-time control scenario.

In one embodiment, the sub-agent obtains the emergency state occurrence information from the managed plant, selects a specific emergency control scenario corresponding to the emergency state occurrence information among the emergency control scenarios, and sets the managed plant as an emergency And transmits the emergency state alarm signal to the EMS server.

In one embodiment, the sub-agent undergoes a preset load follow-up control scenario in accordance with the emergency control scenario under the emergency mode, and adjusts the output of the distributed power source according to the fluctuation of the critical load according to the load follow-up control scenario.

In one embodiment, the sub-agent confirms that the emergency state occurrence information acquired from the managed plant under the normal mode or the emergency state is the violation state information, selects the emergency control scenario closest to the violation state in the real-time control scenario or the emergency control scenario , Emergency control is performed on the managed plant based on the closest emergency control scenario.

In one embodiment, confirming that the sub-agent is the violation state information is to determine whether the emergency state occurrence information is information that does not have a corresponding control scenario in the real-time control scenario or the emergency control scenario, or whether the preset output of the managed plant is compared with the current output When the difference is equal to or greater than a predetermined value.

In one embodiment, the EMS server creates a new case database based on the violation state information from the sub-agent, and re-establishes the transaction and scheduling plan with the new case database added. Further, the sub-agent further emergency-controls the managed plant by applying the additional emergency control scenario based on the re-establishment transaction and the scheduling plan from the EMS server.

In one embodiment, the sub-agent recognizes the failure of emergency control or additional emergency control from the data or emergency state occurrence information obtained from the managed plant under the emergency mode or the violation mode, and performs a pre-set operation for offline situation action.

In one embodiment, the EMS server adds a new database based on failure case information from the sub-agent and performs a pre-set operation for offline situation action of the entire system.

In one embodiment, the sub-agent detects initializable state data in the managed plant under failure mode. The EMS server confirms whether the system can be initialized based on the initializable state data from the sub-agent, and transmits the system initialization signal to the sub-agent. The sub-agent initializes the managed plant in response to the system initialization signal.

According to the present invention, it is possible to provide an agent-based energy management system and method that can improve the performance and reliability of the entire system by distributing operation algorithms concentrated at the center for each sub-agent and optimizing an operation algorithm.

Also, in case emergency control is required as in emergency situations, it is possible to effectively control the plant to be managed on-site at the sub-agent level in real time, and to reliably and systematically acquire and process data from the plant under management An agent-based energy management system and method.

1 is a schematic block diagram of an agent-based energy management system (hereinafter briefly referred to as an energy management system) according to an embodiment of the present invention.
FIG. 2 is a schematic state transition diagram for explaining an operation mode of the energy management system of FIG. 1; FIG.
3 and 4 are schematic flowcharts for explaining an agent-based energy management method (hereinafter, simply referred to as an energy management method) according to an embodiment of the present invention.
FIG. 5 is a flowchart illustrating a data acquisition process of a sub-agent that can be employed in the energy management method of FIG.
6 is a schematic configuration diagram of an embodiment of a consumer participant distribution system employing the energy management system of the present invention.
FIG. 7 is a schematic block diagram of a superior agent that can be employed in the energy management system of FIG. 6. FIG.
FIG. 8 is a schematic block diagram of a subagent employable in the energy management system of FIG. 6. FIG.

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

Terms to be described below are terms defined in consideration of functions in the present invention, and may be changed according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a schematic configuration diagram of an agent-based energy management system (hereinafter simply referred to as an energy management system) according to an embodiment of the present invention.

Referring to FIG. 1, the energy management system 10 according to the present embodiment includes an EMS (Energy Management System) server 110 and a subagent group 120, and includes at least one managed plant in the micro energy grid Real-time monitoring and control of energy production and consumption at the controlled plant. Here, the plant to be managed may be a production source that produces energy such as electric power, heat, or gas, a consumer or a consumer that consumes energy, or a combination thereof. Production sources include distributed power supplies, energy storage devices, and the like.

EMS server 110 is responsible for part of its role in an energy management system (EMS) that manages at least one specific managed plant in a micro energy grid or micro grid. In this embodiment, the EMS server 110 distributes a part of its functions to sub-agents, and a means for performing a transaction and a scheduling function for energy production and use of the managed plant, or a component for performing functions corresponding to these means Respectively. The EMS server 110 may be referred to as a parent agent in the concept corresponding to the subagent and is connected to an external Integrated Operating Center (TOC) through the network. The integrated operation center may be, for example, at least one control center for managing the Micro Energy Grid. The EMS server 110 may be connected to a separate system administrator or a default administrator device corresponding to the system administrator. In this case, the system administrator may perform processing and / or repair of an emergency situation in various buildings or buildings It may be a person in charge or a system operated by this person.

The subagent group 120 is responsible for part of its role in an energy management system (EMS) that manages at least one specific managed plant in the Micro Energy Grid or Micro Grid. In this embodiment, the sub-agent group 120 includes a first sub-agent 121 and a second sub-agent 122. [ The first sub-agent 121 may be a real-time control module responsible for the real-time control function and the second sub-agent 122 may be an emergency control module responsible for the emergency control function. These subagents can be installed on the demand source device (such as a load device) of the managed plant or the MEG EMS of the field microgrid gateway (MG Gateway) with distributed power source. The sub-agent group 120 interworks with the EMS server and can be connected to the system administrator through a network, similar to the case of the EMS server 110. [

The network includes any network capable of performing a call or communication function, such as a mobile communication network for voice call, a mobile communication network for video call, an internet protocol (IP) or long term evolution (LTE) based data communication network, or the Internet. do. Such a network may include a mobile communication network, a data network or a satellite network, and the mobile communication network may include, for example, a body area network (BAN), a personal area network (PAN), a local area network (LAN), and a metropolitan area (MAN) according to a transmission distance thereof. Network, wide area network (WAN), and the like.

The operation of the energy management system according to the present embodiment will be briefly described below.

First, based on the information obtained from various data acquisition points of the energy supply or demand field, the TOC (Total Operating Center) analyzes the site and converts the analyzed data into a database for each scenario. Here, the database may be managed in the form of XML (eXtensible Markup Language) standard, and may include connection information between energy management systems and switch information managed by each energy management system.

When the integrated operation center transmits total energy management information (hereinafter, simply referred to as TOC information) including market situation information to the function-based or regional-based energy management system, the upper agent of the energy management system according to the present embodiment is different from the other energy management systems (Energy production information, etc.) for regional and functional role sharing by function or function, and transmit the established information to the integrated operation center, establish energy grid operation plan for role sharing with subagent, Deploy the plan to the subagent.

Next, the sub-agent establishes a control scenario including the scenario planning schema file based on the real-time control plan and the emergency control plan established in the parent agent, and controls the managed plant based on the scenario planning schema file do.

In this embodiment, the managed plant may be grouped according to the first sub-agent 121 and the second sub-agent 122. [ For example, the managed plant may be classified as a load device controlled by the first sub-agent 121 or a distributed power source device controlled by the demand source device and the second sub-agent 122.

According to the present embodiment, in the energy management system (EMS: Energy Management System) for managing at least one specific managed plant in the micro grid or the micro energy grid, a parent agent and a subagent are installed for each role charge, To optimize the operating algorithm. In particular, by transferring the specific function of the parent agent to the sub-agent and interworking it with the sub-agents, it is possible to promptly perform immediate action in case of a problem in the managed plant and remote maintenance for normal operation, It is possible to perform an immediate action at the sub-agent when the communication between the sub-agents is lost, thereby improving the stability and reliability of the system.

FIG. 2 is a schematic state transition diagram for explaining an operation mode of the energy management system of FIG. 1; FIG.

Referring to FIG. 2, the energy management system according to the present embodiment has a predetermined operation mode, and performs a state transition of the operation mode according to the control scenario. The energy management system basically has four operation modes and four operation modes are a normal mode 11, an emergency mode 22, a violation mode 23, Mode, 24). The normal mode, the emergency mode, the violation mode, and the failure mode are set according to the state of the managed plant.

The energy management system may be configured to switch between a normal mode and an emergency mode or between a normal mode and a violation mode, a transition between an emergency mode and a violation mode, an emergency mode or a failure mode, Performs one mode switching, and manages energy production and consumption of the managed plant.

The normal mode 11 is a mode for real-time control of a managed plant based on a real-time control scenario based on a normal state or normal scheduling (first scenario). Under the normal mode (11), the sub-agent establishes the first scenario based on the energy supply and / or demand plan from the host agent, controls the corresponding managed plant in real time in accordance with the first scenario, Share the data with the parent agent.

The energy management system may operate in a Cost Minimize Mode in order to maximize the energy efficiency of the system itself or maximize the energy efficiency of the entire grid under the normal mode 11. In the operation cost minimization mode, it is possible to determine the reference output of the energy production source, the charge amount of the energy storage device, and the charge amount to minimize the electricity and thermal energy supply cost which is driven before the trading day. Here, the trading day may be one day before the energy trading day or a predetermined time before the energy trading day.

In addition, the energy management system can receive the demand response signal from the integrated operation center under the normal mode 11, in which case it can perform a demand response mode under the normal mode 11. Demand Response in the Electricity Market Demand Response is a time-based tariff designed to induce consumers to change their power usage patterns by providing electricity billing signals that are close to the marginal cost by time, It can be defined as an incentive program designed to induce consumers to reduce the use of electric power when the reliability of the power system is expected to be a problem.

The energy management system determines the standard output of the energy production source and the charge amount of the energy storage device to minimize the electricity and thermal energy supply cost by implementing the demand reduction of the controlled plant in the demand reaction mode, It can be distributed by the customer.

In addition, the energy management system utilizes load following control technology under the demand reaction mode (15) to supply the energy generated from the self-generated energy source to the customer at the time of energy peak consumption, such as the power peak, It is possible to increase the economic efficiency. The load follow-up control technology refers to a control system that immediately generates power according to the load at each time point in response to changes in energy supply and demand such as power and heat.

Under the normal mode 11 described above, the energy management system recognizes either the steady state, the emergency state, or the violation state based on the data or the emergency state occurrence information obtained from the managed plant via the subagent, When recognizing the recognition status, it can proceed from the normal mode to the corresponding mode.

The emergency mode 12 is a state in which the managed plant is set as an emergency state based on the emergency control scenario (second scenario) that is not included in the normal control scheduling plan or is included in the emergency control scheduling plan, This is a mode for controlling. Under the emergency mode (12), the sub-agent resets the management target plant on the basis of the second scenario, returns to the normal mode upon the success of the emergency control, and executes the violation mode (13) .

The violation mode 13 is a control scenario based on normal control scheduling or emergency control scheduling at the occurrence of an emergency state corresponding to case situations not included in normal control scheduling (real-time control scheduling, etc.) and emergency control scheduling, This is a mode for emergency control of the managed plant based on the selected control scenario and the selected control scenario. Under the violation mode 13, the energy management system can additionally control the managed plant based on the re-established scheduling for the violation state and the additional emergency control scenario based on it (the third scenario). Under the violation mode 13, if the emergency control or the additional emergency control is successful, the energy management system returns from the violation mode 13 to the normal mode 11 or proceeds to the emergency mode 12 and the emergency control or additional emergency control If unsuccessful, the energy management system proceeds from failure mode (13) to failure mode (14).

Failure mode 14 may be used in emergency mode 12 for failures of emergency control for the managed plant under emergency mode 12 or in failure of emergency control or additional emergency control for the managed plant under violation mode 13 ) Or a violation mode (13). Under failure mode 23, the energy management system can manage information about failure situations, re-establish scheduling and control scenarios for failure situations, alert an offline system administrator or initialize the entire system.

The operation modes of the agent-based energy management method employable in the energy management system of FIG. 1 will now be described in detail with reference to FIGS. 1 and 2. FIG.

Minimize operating costs mode

1 and 2, the Cost Minimize Mode is a mode for minimizing the electricity and thermal energy supply cost under the normal mode 11, for example, under this mode, the energy management system is driven before the trading day, And a reference output of a production source (such as a distributed power supply device) for minimizing the heat energy supply cost, and the charge and discharge amount of the energy storage device. To this end, an EMS server or a parent agent 110 and a subagent group (hereinafter, simply referred to as a subagent) 120 may be linked as follows.

First, the parent agent 110 receives the TOC information from the integrated operation center (TOC). The parent agent 110 establishes a plan (operation plan, etc.) for scheduling and emergency planning for managing electricity and thermal energy of the managed plant based on the TOC information, and transmits the operation plan to the sub-agent 120 send. Then, the parent agent 110 transmits the production amount information to the integrated operation center (TOC).

Next, the sub-agent 120 establishes a real-time control scenario or an emergency control scenario based on the operation plan from the parent agent for each charge role, and controls the managed plant in real time. The sub-agent 120 acquires data from the managed plant. At this time, the sub-agent 120 acquires and processes the data corresponding to the responsible role, respectively. Then, the sub-agent 120 shares the production status acquired from the managed plant with the parent agent 110.

Demand reaction mode

Referring to FIGS. 1 and 2, a demand response mode 15 is driven in a normal mode 11 or in a normal operation, and a reference output of a production source derived from a scheduling module (not shown) Redistribution of the output of the production source in order to supply the fluctuating electric load in response to the contrast demand response or redistribution of the output of the production source so that the control point of the receiving point of the controlled plant can be controlled at the demand reaction time based on the demand reaction signal Lt; / RTI > For this purpose, the parent agent 110 and the subagent 120 can be interworked as follows.

First, the parent agent 110 receives the demand response signal from the integrated operation center (TOC). The parent agent 110 establishes a modification plan that modifies the preset operation plan in response to the demand response signal, and transmits the modified modification plan to the sub agent 120. Then, the upper agent 110 transmits the demand response availability query signal and the production amount information to the integrated operation center.

Next, the sub-agent 120 establishes a real-time control scenario and an emergency control scenario based on the modification plan from the parent agent 110, and controls the managed plant in real time based on the established real-time control scenario. Then, the sub-agent 120 acquires data from the managed plant and shares the production status acquired from the managed plant with the host agent 110.

The energy management system 10 according to the present embodiment can proceed without a separate switching process when changing from the operation cost minimization mode to the demand response mode by sharing roles between the parent agent 110 and the subagent 120, The operating algorithm of the system can be optimized.

emergency mode

Referring to FIG. 1 and FIG. 2, the emergency mode (Emergency Mode) 12 is a mode for coping with the occurrence of an emergency state in a plant to be managed. The parent agent 110, on the basis of a scheduling plan, And an operation scenario of the production source can be created and distributed to the sub-agent 120. The sub-agent 120 can generate production scenarios for the production source, the energy storage device, and the spare The output of the power source can be distributed, and the load shedding signal can be sent to an external system such as a building energy management system (BEMS).

For example, under the normal mode such as the operation cost minimization mode and the demand reaction mode, the sub agent 120 acquires the emergency state occurrence information from the management subject plant. The sub-agent 120 selects a specific emergency control scenario corresponding to the emergency state occurrence information among the preset emergency control scenarios on the basis of the emergency control plan from the parent agent 110, and based on the selected emergency control scenario, . The sub-agent 120 may then send an emergency status alarm signal to the parent agent 110.

In the present embodiment, the emergency state of the management target plant in accordance with the emergency mode is determined based on the second scenario scenario items classified as different from the first scenario scenario items for the remote monitoring, generation management, and system operation of the managed plant And corresponds to the case where the corresponding state is detected from the managed plant. In this case, the second scenario case item may include all items other than the first case scenario case, and the state of the managed plant corresponds to the default emergency state case or does not correspond to the predetermined emergency state case, Includes cases that correspond to close pre-set emergency condition cases. Here, the term " proximity " may be referred to in control engineering as being within the predetermined similarity degree range or having a value closest to the estimated similarity degree.

According to the present embodiment, when the emergency state occurs, the sub-agent 120 can perform emergency control on the managed plant at the sub-agent unit based on the preset emergency control scenario corresponding to the emergency state occurrence information. As such, in the energy management system 10 according to the present embodiment, even when a problem occurs in the plant to be managed under an undesired situation such as a loss of communication between the upper agent 110 and the lower agent 120, The problem situation can be dealt with promptly and quickly.

Also, the energy management system 10 does not interrupt the energy supplied to the critical load through the load following mode under the emergency mode (12), and adjusts or distributes the output amount of the production source in accordance with the fluctuation of the critical load .

Normal violation mode

Referring to FIGS. 1 and 2, the normal violation mode 13 is a type of violation mode that proceeds from the normal mode to the violation mode. Under this violation mode, the parent agent 110 establishes a new scheduling when the current output data of the production source derived from the scheduling module (not shown) exceeds the error rate range, and the sub-agent 120 establishes the re- The managed plant can be controlled according to the emergency control scenario based on the emergency control scheduling. The operation in the normal mode to the normal violation mode and the operation in the normal violation mode will be described in detail as follows.

First, the sub-agent 120 acquires data from the management target plant, and confirms the violation status of the management target plant from the acquired data. Confirmation of the violation status can be performed by comparing the current output with the preset reference output on the scheduling. When the violation state is confirmed, the sub-agent 120 selects the control scenario closest to the violation state among the preset real-time control scenarios and controls the managed plant on the basis of the selected control scenario. Then, the sub-agent 120 transmits the violation state data and the alarm signal to the parent agent 110. The sub-agent 120 acquires the emergency control result feedback from the managed plant.

Next, the parent agent 110 requests TOC information from the integrated operation center based on the violation state data, and receives the TOC information from the integrated operation center. The parent agent 110 re-establishes the scheduling and emergency control plan based on the TOC information, and transmits the re-establishment plan to the sub-agent 120. [ Then, the upper agent 110 transmits the demand response availability and production amount information to the integrated operation center.

Next, the sub-agent 120 re-establishes the emergency control scenario based on the emergency control result feedback and the re-establishment plan from the parent agent 110, and further emergency-controls the management subject plant based on the re-established emergency control scenario .

Then, the energy management system 10 acquires data from the managed plant after the additional emergency control, and when the additional emergency control is confirmed to be successful or partially successful based on the acquired data, the energy management system 10 returns to the normal mode in the violation mode, The process proceeds to the emergency mode, and if it is confirmed that the additional emergency control has failed, the process proceeds from the violation mode to the failure mode.

Emergency Violation mode

Referring to FIGS. 1 and 2, an emergency violation mode (13) is a type of a violation mode that proceeds from an emergency mode to a violation mode. In this violation mode, the sub-agent 120 confirms that the specific emergency control scenario corresponding to the emergency state occurrence information acquired from the managed plant is a violation state that is not included in the preset emergency control scenario. In the emergency emergency control scenario, Selects a scenario closest to the state occurrence information, and performs emergency control of the plant to be managed based on the selected scenario. One embodiment of the operation process of the sub-agent and the parent agent in the emergency violation mode is as follows.

First, the sub-agent 120 obtains the emergency state occurrence information from the managed plant, confirms the violation state in accordance with the selection failure of the emergency control scenario corresponding to the emergency state occurrence information, and then selects the scenario closest to the emergency state occurrence information Emergency control of the controlled plant based on the selected and selected proximity scenarios. If the selection of the proximity scenario fails, the subagent or energy management system may proceed to the initialization mode. Then, the sub-agent 120 transmits the violation state data and the alarm signal to the parent agent 110, and obtains the control result feedback from the management target plant.

Next, the parent agent 110 adds a new case database based on the violation state data, re-establishes the schedule for the scheduling and emergency control, and sends the re-establishment plan to the sub-agent 120. [

Next, the sub-agent 120 establishes additional scenarios based on the re-establishment plan and additionally controls the managed plant based on the additional scenario. The sub-agent 120 acquires data from the managed plant. If the state of the managed plant is controlled so as to correspond to the preset control scenario by the additional emergency control, the subagent 120 determines that the additional emergency control is successful and sets the current violation mode to the normal mode or the emergency state corresponding to the corresponding scenario Mode. On the other hand, if the state of the managed plant still does not correspond to the preset control scenario despite the additional emergency control, the subagent 120 determines that the additional emergency control has failed and proceeds to the failure mode in the violation mode.

failure mode

Referring to FIGS. 1 and 2, a failure mode (14) is a mode in which control fails in an emergency mode or a violation mode. The energy management system according to the present embodiment proceeds from a normal mode to an emergency mode and then enters a failure mode, enters a failure mode after proceeding from a normal mode to a violation mode, or goes to a violation mode via an emergency mode in a normal mode And then enter the failure mode. In the failure mode, the sub-agent recognizes the failure status based on the data acquired from the managed plant or the emergency status occurrence information, and performs the offline status action according to the preset emergency control scenario to cope with the failure status. An offline situation action involves initializing the system as a whole (Shut Down, etc.). An embodiment of the operation process of the energy management system in the failure mode is as follows.

First, the sub-agent 120 acquires data from the managed plant and confirms the violation state based on the acquired data. When such a violation state reaches a predetermined number of times or a range (a reference value, etc.), the sub-agent 120 recognizes the failure of the emergency control or the additional emergency control and sets a preset scenario . Then, the sub-agent 120 manages the scenario application failure case information and transmits the violation case information to the parent agent. The sub-agent 120 may be implemented to perform initialization for self-protection after the above-described operation.

Next, the parent agent 110 adds a new case database based on the violation case information, and performs an offline situation action for the entire system. The off-line situation action includes transmitting emergency state occurrence information and / or an alarm signal of the managed plant to the default manager device corresponding to the system administrator or the system manager. Then, the sub-agent 120 establishes an additional control scenario based on the re-establishment plan from the parent agent 110, and applies the control scenario again to control the managed plant.

reset mode

Referring to FIGS. 1 and 2, the initial mode is a mode for entirely initializing the system when the managed plant is not in the initialization state under the failure mode. Of course, if the initializable state is recognized in the data acquired from the managed plant under the failure mode, the energy management system can control the system based on the recognized initializable state. One embodiment of the initialization mode will be described below.

First, the sub-agent 120 detects the initializable state of the managed plant and transmits the initializable state information of the managed plant to the parent agent.

Next, the parent agent 110 confirms whether the system can be initialized based on the preset scheduling or the emergency control plan, and transmits the initialization signal to the sub-agent 120. The sub-agent 120 initializes the managed plant in response to the initialization signal.

In the present embodiment, the basic failure mode operates predominantly by the subagent. However, the initialization mode is implemented such that the parent agent recognizes whether the entire system is operable or not, and operates so as to act predominantly. It is possible to improve the reliability of the energy management system. In addition, it is possible to facilitate construction of a remote maintenance system for normal operation in the event of a problem.

According to the above-described embodiment, when the communication between the parent agent 110 and the subagent group 120 is terminated, the subagent 120 can communicate with each other based on the preset real-time control and / It is possible to prevent undesired adverse effects on the operation of the managed plant belonging to the sub-agents by controlling the plant.

Furthermore, by implementing the energy management system 10 so as to share the roles of the agents for each function or each module, it is possible not only to acquire an appropriate amount of data such as energy production data, energy demand data, energy consumption data, The data from the plant can be acquired and processed stably and systematically.

In addition, in the energy management system 10 of the present embodiment, when an emergency state, a violation state, or a failure state occurs, information on the energy management system 10 can be shared through a dual agent system operation and the problem situation can be effectively coped with by re- That is, by using the agent upper and lower linkage structures of the present embodiment, it is possible to facilitate the immediate action on the emergency situation and the construction of the remote maintenance system for normal operation through the real-time scenario management shared by the upper and lower agents, The reliability of the system can be improved.

In addition, the energy management system 10 of the present embodiment can be applied to a micro energy grid (MEG) in the form of a standard-based middleware. Here, the CIM (Common Information Model) standard (IEC 61970/61968, etc.) may be applied to the middleware. In this case, it is possible to improve the convenience of system integration (SI) in MEG, to utilize control of energy production source, and to secure or increase service reliability for grid operation and energy trading. In addition, it is possible to secure system scalability and convenience by sharing roles of agents, thereby facilitating system operation and maintenance, thereby reducing costs. In addition, the problem of low reliability of the system can be solved due to the structural problems caused by the centralized operation of the existing energy management system and the absence of the real-time scenario management for the emergency situation.

3 and 4 are schematic flowcharts for explaining an agent-based energy management method (hereinafter, simply referred to as an energy management method) according to an embodiment of the present invention.

Referring to FIG. 3, the host agent establishes a real-time control and an emergency control plan (scheduling) for the managed plant based on the preset total energy management information (S31). The total energy management information may include market information and load information received from the integrated operation center.

The real-time control and emergency control plan is distributed from the parent agent to the sub-agent. At that time, the parent agent can transmit only the scheduling required for the role of the sub-agent to the corresponding sub-agent. For example, the parent agent can create an operating scenario of the grid and the production source according to the emergency state based on the emergency control scheduling and distribute it to the second sub-agent. In this case, when the emergency state occurs, the second sub-agent can emergency control the customer or the plant to be managed based on the emergency control scenario established based on the emergency control scheduling.

Next, the sub-agent establishes a real-time control scenario and an emergency control scenario based on the scheduling from the parent agent (S32). The sub-agent controls the managed plant based on the established real-time control scenario or the emergency control scenario.

Next, the sub-agent recognizes the status of the managed plant based on the data from the managed plant (S33). The managed plant has a steady state, an emergency state, a violation state, or a failure state. The data acquired from the managed plant can be shared with the parent agent.

Next, the sub-agent switches the operation mode according to any one of the normal state, the emergency state, the violation state, and the failure state of the managed plant and performs a preset control scenario for the operation mode (S34). The preset control scenarios include real-time control, emergency control or off-line situation actions.

Referring to FIG. 4, the energy management system employing the energy management method according to the present embodiment first detects an event occurring in the target plant through various sensors (S41). Then, it is determined which case the detected event is in (S42). In this discriminating step, it is determined whether the detected event is an event occurrence situation of the case included in the default control scenario or an event (unplanned event, etc.) of a case not including the default control scenario.

If it is determined in step S42 that the sensed event is included in the preset control scenario, a sequence control operation is performed according to the case corresponding to the event (S43). For example, it can be performed to control an event by associating operations of a first sub-agent and a fourth sub-agent installed in a specific area (see FIGS. 6 and 8). After performing a series of control operations, the sub-agent can notify the parent agent of the event processing information about the event processing (S44).

If it is determined in step S42 that the sensed event is not included in the predetermined scenario plan, the sub-agent determines whether there is a proximity scenario for the sensed event (S45). The proximity scenario refers to a specific control scenario closest to a previously sensed event (emergency state occurrence information, etc.) among the preset control scenarios, and the selection of such a proximity scenario has the closest value to the detection value in the event, As shown in FIG.

As a result of the determination in step S45, if there is a proximity scenario for the detected event, the subagent selects a proximity scenario and performs a series of control operations based on the selected proximity scenario (S46).

Next, after determining that there is no proximity scenario for the detected event in step S45 or performing a series of control operations based on the proximity scenario, the sub-agent transmits event information or event information and processing information of the event And notifies the parent agent (S47). Here, the event information may include violation case information or failure case information on failure to process the violation case.

Next, the sub-agent determines whether the control is failed (S48). The control failure includes a case in which a sequence control operation is performed based on a proximity scenario but is not controlled as desired or a state in which control is impossible because there is no proximity scenario. If it is determined in step S48 that the control is unsuccessful, the sub-agent performs an offline status action according to the preset control scenario (S49).

If it is determined in step S48 that the control fails, the parent agent adds the new case database based on the violation case information and re-establishes the plan for the emergency control, etc. (S50). The re-established emergency control plan is redistributed to the sub-agent, and the sub-agent further emergency-controls the managed plant by applying the re-established emergency control plan (S51).

If the result of the determination based on the data acquired from the management subject plant after the additional emergency control does not adequately process the event, the sub-agent manages the event processing failure information, notifies the parent agent thereof and performs self-initialization The management target plant can be initialized according to the initialization signal from the host agent.

FIG. 5 is a flowchart illustrating a data acquisition process of a sub-agent that can be employed in the energy management method of FIG.

Referring to FIG. 5, the sub-agent recognizes the consumer pattern of the consumer or the consumer by agent or by role (S51). The consumer or the consumer corresponds to an object that consumes energy such as electric power or heat, and the consumer pattern can be classified according to an energy demand pattern according to categories such as weekday, weekend, holiday, and season.

Next, the sub-agent makes a database of perceived consumer patterns into patterns (S52). In the patterning database, the energy management system can accumulate the linkage information of the common items in the pattern to establish a pattern of a predetermined period, and manage the database in the form of an XML schema file based on the established pattern.

Next, the sub-agent transmits the agent-specific pattern database schema file to the parent agent (S53). The parent agent executes the scheduling process based on the pattern database schema file uploaded from the sub-agent and constructs the operation plan for real-time control and emergency control, and distributes the operation plan to the sub-agent.

Next, the sub-agent establishes a specific scenario case or updates the additional scenario case based on the operation plan received from the parent agent, and executes the scenario planning process based on the scenario case, or controls the management subject plant (S54). For example, a specific scenario case, which is an example of a control scenario, may be named parent case 1 (parent XML 1), which may correspond to a scenario in which a first child agent and a second child agent work together to handle the situation (See Figs. 6 and 8).

Through the above-described processes (S51 to S54), the energy management system efficiently controls the managed plant through the agent operation using the parent agent and the sub-agent (S55). In the above-described process, the sub-agent may be implemented to load the scenario planning schema file for the agent from the parent agent and to control the managed plant based on the loaded file.

6 is a schematic configuration diagram of an embodiment of a consumer participant distribution system employing the energy management system of the present invention.

6, the energy management system (EMS) 100 according to the present embodiment includes a system operation 113a, a system distribution 114a, a power generation management 115a, an integrated monitoring 101 and the middleware engine 102 programs are implemented to acquire information necessary for system operation from the system and other systems at normal time through the middleware 103. Here, the middleware 103 refers to a program that coordinates and mediates between system software and application software or between two different kinds of application programs. In this embodiment, the energy management system 100, the middleware 103, or a combination thereof may correspond to the EMS server 10 of the energy management system described above.

Based on the acquired information, the EMS 100 creates scenarios necessary for system operation, system distribution, and power generation management. The EMS transfers the created scenario to the middleware 103 through the middleware engineering program.

The middleware 103 sets the subagents 123, 124, and 125 based on the scenario received from the EMS 100. [ Here, the agents may correspond to third to fifth subagents, respectively, coupled to the devices 210, 220, 230 of the in-building power system connected to the distribution system (see FIG. 8).

When a scenario situation occurs, the agents perform the set scenarios through direct communication with each other, and the managed plant can be reliably managed and operated by the agent operation according to the preset scenarios.

7 is a schematic block diagram of a superior agent that can be employed in the energy management system of FIG.

Referring to FIG. 7, the upper agent 110a according to the present embodiment includes a first real-time control module 111 and a first emergency control module 112. The first real- The first real-time control module 111 includes a first system operation module 113, a first system distribution module 114, and a first power generation management module 115. Of course, the first system operation module 113, the first system distribution module 114 and the first power generation management module 115 do not belong to the first real-time control module 111 but are connected to the first real- They can be arranged independently or in parallel.

The parent agent 110a establishes the real-time control scheduling for the normal time and the emergency control scheduling for the emergency, and transmits the established scheduling plan result to the sub-agent through the first real-time control module 111. [ Also, the parent agent 110a receives data on an emergency case, a violation case, or a failure case from the sub-agent as needed, generates a new case database based on the received data or adds the new case database to the primary database, Re-establishes the scheduling, and transmits the re-established emergency control scheduling to the sub-agent through the first emergency control module 112. [

Also, the first real-time control module 111 can create an operation plan of the grid and energy production source according to the normal state based on the normal scheduling and distribute it to the sub-agent. The first real-time control module 111 can determine the reference output of the energy production source, the charge amount of the energy storage device, and the charge amount before the trading day to minimize the electricity and thermal energy supply cost.

The first emergency control module 112 can create an operation plan of the grid and energy production source according to the emergency state based on the emergency control scheduling and distribute it to the sub-agent. The first emergency control module 112 receives data (an alarm message and a control value of the violation and / or failure status) of the violation or failure case from the sub-agent, and based on the received data and / or the control value And re-establishing the emergency control scheduling, and then transmitting the re-established emergency control scheduling plan result to the corresponding sub-agent.

The first grid operating module 113 is installed in the switchboard of the distribution grid to connect with the second grid operating module of the sub-agent and controls the grid entry operation, or a function corresponding to the grid upper operating means And the first grid distribution module 114 may correspond to a grid upper operating means that controls the power distribution to each load in the customer's switchboard in conjunction with the second grid distribution module of the sub-agent, And the first power generation management module 115 may operate in cooperation with the second power generation management module of the subagent to generate energy in the customer and supply power to the customer or the power distribution system side, Or a component that performs a function corresponding to this means (see FIG. 6).

FIG. 8 is a schematic block diagram of a subagent employable in the energy management system of FIG. 6. FIG.

Referring to FIG. 8, the sub-agent 120a according to the present embodiment includes a first sub-agent 121 having a second real-time control module 1211, a second sub-agent 121 having a second emergency control module 1212, Agent 122, a third sub-agent 123 with a second system operation module 1213, a fourth sub-agent 124 with a second system distribution module 1214, and a second power management module And a fifth sub-agent 125 having a second sub-agent 1215. Here, the first to fifth subagents communicate with each other and can share data.

The first sub-agent 121 or the second real-time control module 1211 manages a fluctuating electric load with respect to a reference output of an energy production source derived from a corresponding function (a first real-time control module or the like) Adjust or redistribute the output of the energy source to supply to the target plant.

Based on the demand response data on the energy consumption of the plant to be managed, the specific sub-agent has a second mode for responding to the demand reaction signal in the first mode (corresponding to the operation cost minimization mode) for cost reduction In this case, the second real-time control module 1211 may redistribute the output of the energy generating source so that the static power of the receiving point can be controlled during the demand reaction time corresponding to the power peak of the demand reaction data, can do.

The second sub-agent 122 or the second emergency control module 1212 may control the amount of output of the energy generating source, the energy storage device, and the standby power source to supply power to the critical load of the customer based on the emergency control scheduling And the load cutoff signal can be sent to an external system such as a building energy management system of the plant to be managed.

When a violation state contrary to the emergency control scheduling is detected from the management target plant, the second emergency control module 1212 selects the emergency control scenario close to the detected violation state, and controls the management subject plant based on the selected emergency control scenario . In this case, the parent agent receives the violation state information, the alarm message, the control value for the violation state, and the like from the second sub-agent 122, and updates the new emergency control case database based on the received violation state information or control value After the emergency control scheduling is re-established, the re-established emergency control scheduling result is transmitted to the sub-agent. The second sub-agent 122 re-establishes the emergency control scenario based on the re-establishment emergency control scheduling plan result from the parent agent, and additionally controls the management target plant based on the emergency control scenario.

The second sub-agent 122 transmits data on the violation and / or failure case to the parent agent when the control of the managed plant according to the emergency control scheduling or the re-established emergency control scheduling fails, And perform initialization for protection of the system scum.

The third sub-agent 123 includes a second system operation module 1213 interlocked with a corresponding functional unit (a first system operation module or the like) of the upper agent. The third sub-agent 123 is installed in an electricity distribution board, And the fourth sub-agent 124 may correspond to a corresponding function (a first system distribution module or the like) of the parent agent, And a second grid distribution module 1214 interlocked with the first grid distribution module 1214. The second grid distribution module 1214 corresponds to a grid lower operating means or a component performing a function corresponding to this means for coupling to a device for controlling the power distribution for each load in the customer's switchboard And the fifth sub-agent 125 has a second power generation management module 1215 cooperating with a corresponding function (a first power generation management module or the like) of the upper agent, To produce energy may correspond to a configuration unit for performing a function corresponding to the grid or sub-operating means such means for coupling to a device for supplying electric power toward suyongga or distribution system (see Fig. 6 and 7) at.

According to the above-described embodiment, in the micro energy grid system including the distributed power source for consumer participation, the structure in which the agents are separately formed for respective roles and the case where the scenario data is acquired from the sub- And notifying the upper agent of the energy management system, it is possible to share the role of the energy management system in accordance with the site facility requiring the operation function and acquire the data corresponding to each role, The configuration cost can be reduced and the reliability of real-time data processing can be improved. In addition, by recognizing the emergency situation in real time when an emergency situation occurs, the emergency situation can be effectively coped with through automatic agent event processing according to the emergency control scenario. In addition, when employed on the micro energy grid in the form of middleware, the operation and maintenance cost of the entire system can be reduced through on-line remote management, system scalability and convenience.

It is to be understood that the above-described embodiments are only illustrative of the constituent elements of the claims of the present invention, and do not limit the scope of the present invention, but rather should be construed as being included in the technical ideas throughout the specification of the present invention, Embodiments that include replaceable components as equivalents may be included within the scope of the present invention.

10: Agent based energy management system
110, 110a: parent agent
120, 120a: subagent or subagent group

Claims (32)

In an agent-based energy management system having an EMS (Energy Management System) server and a sub-agent connected to an EMS server, at least one of the managed plants in the micro energy grid is monitored in real time and the energy production and consumption in the managed plant is controlled An agent-based energy management method comprising:
Establishing a transaction and scheduling plan for remote monitoring, power generation management, and system operation of the management target plant on the EMS server side; And
Performing real-time control or emergency control of a management subject plant in accordance with a transaction and scheduling plan of the EMS server in a plurality of sub-agents installed to take charge of part of the EMS server
Lt; / RTI >
And the subagent acquires and processes data corresponding to its role from the managed plant. The method of claim 1,
The EMS server and the sub-agent may be configured to perform a transition between a normal mode and an emergency mode, or between a normal mode and a violation mode, a transition between an emergency mode and a violation mode, a transition from the emergency mode or the failure mode to the failure mode, Wherein the normal mode, the emergency mode, the violation mode, and the failure mode are set according to the state of the managed plant. 3. The method of claim 2,
Wherein performing the real-time control comprises controlling a managed plant in accordance with a real-time control scenario established by the sub-agent under the normal mode based on the real-time control scheduling of the EMS server. The method of claim 3,
Performing the real-time control includes: executing a sub-agent in a normal mode according to a real-time control scenario; And when the demand reaction signal is received from the integrated operation center under the operation fee minimization mode, the sub-agent interworking with the EMS server executes the demand response mode for load follow-up control operation according to the real-time control scenario . 5. The method of claim 4,
Wherein executing the operating cost minimization mode comprises: determining a reference output of the distributed power supply to minimize the electrical and thermal energy supply cost before the energy trading day, and determining the charge and discharge amounts of the energy storage device. How to manage. 5. The method of claim 4,
Wherein executing the demand response mode comprises redistributing the output of the distributed power supply to supply a varying electrical load relative to a reference output of the managed plant. 5. The method of claim 4,
Wherein the step of executing the demand response mode comprises the step of redistributing the output of the distributed power supply for constant power control of the receiving point of the managed plant at the demand response time based on the demand response signal at the sub- How to manage. 3. The method of claim 2,
Wherein performing the emergency control comprises emergency control of the managed plant at the sub-agent end based on the emergency control scenario established by the sub-agent based on the emergency control scheduling from the EMS server under the emergency mode Agent based energy management method. 3. The method of claim 2,
The step of performing the emergency control may include: obtaining emergency state occurrence information from the managed plant at the sub-agent; Selecting a specific emergency control scenario corresponding to the emergency state occurrence information in the emergency control scenario established based on the emergency control scheduling from the EMS server; And emergency controlling the managed plant based on the selected emergency control scenario. 10. The method of claim 9,
Wherein performing the emergency control further comprises transmitting an emergency state alarm signal corresponding to the emergency state occurrence information at the sub-agent to the EMS server. 11. The method of claim 10,
Re-establishing a transaction and scheduling plan based on the emergency state alarm signal at the EMS server;
Updating the emergency control scenario for the managed plant based on the re-established scheduling plan from the EMS server in the sub-agent;
Further emergency control of the managed plant based on the updated emergency control scenario in the sub-agent; And
Returning to the normal mode from the emergency mode if the additional emergency control is successful in the additional emergency control step, and proceeding to the violation mode or the failure mode in the emergency mode if the additional emergency control fails
Wherein the agent-based energy management method further comprises: 12. The method according to any one of claims 2 to 11,
The step of performing the emergency control may include: obtaining emergency state occurrence information from the managed plant at the sub-agent; Recognizing a violation state of the managed plant based on the emergency state occurrence information; And selecting a particular emergency control scenario closest to the violation state in the emergency control scenario established based on the emergency control scheduling from the EMS server; And emergency controlling the managed plant based on the selected emergency control scenario. The method of claim 12,
Wherein recognizing the violation state comprises failing to select an emergency control scenario corresponding to the emergency state occurrence information in the emergency control scenario of the sub-agent based on the emergency control scheduling of the EMS server. The method of claim 12,
Wherein performing the emergency control further comprises proceeding from failure mode to failure mode upon selection failure in the step of selecting the closest emergency control scenario. The method of claim 12,
Wherein performing the emergency control further comprises sharing, at the sub-agent, violation state data corresponding to the violation state with an EMS server. 16. The method of claim 15,
Adding a new case database based on the violation state data at the EMS server;
Re-establishing a scheduling plan based on the new case database;
Performing emergency control of the managed plant by applying the re-established scheduling plan in the sub-agent; And
If the emergency control of the managed plant based on the re-established scheduling plan is successful, returns to the normal mode or the emergency mode in the violation mode, and if the emergency control of the managed plant based on the re-established scheduling plan fails, Said method further comprising the steps of: 17. The method of claim 16,
After proceeding to the failure mode,
Managing failure case information in the sub-agent; And
And transmitting an offline action request signal of the management target plant to the default setting manager device. 18. The method of claim 17,
And performing self-protection initialization at the sub-agent. 18. The method of claim 17,
Sending failure case information from the sub-agent to an EMS server;
Adding a new case database based on failure case information in the EMS server; And
And processing the predefined overall system offline situation action in the EMS server. 17. The method of claim 16,
After proceeding to the failure mode,
Detecting an initializable state of the managed plant in the sub-agent;
Receiving initial state information of the managed plant from the sub-agent in the EMS server;
Confirming whether the plant can be initialized in the EMS server; And
Initializing the managed plant based on the plant initialization signal of the EMS server in the sub-agent
Wherein the agent-based energy management method further comprises: 1. An agent-based energy management system for real-time monitoring of at least one managed plant in a micro energy grid and for controlling energy production and consumption in a managed plant,
An EMS (Energy Management System) server that establishes a transaction and scheduling plan for remote monitoring, generation management, and system operation of the plant to be managed; And
And a plurality of sub-agents that are responsible for part of the roles of the EMS server and perform real-time control or emergency control of the managed plant in accordance with the transaction and scheduling plan of the EMS server,
And the subagent acquires and processes data corresponding to a role from a managed plant. 22. The method of claim 21,
The EMS server and the sub-agent may switch between the normal mode and the emergency mode, or between the normal mode and the violation mode, between the emergency mode and the violation mode, to the emergency mode or the failure mode, Wherein the normal mode, the emergency mode, the violation mode, and the failure mode are set according to the state of the managed plant. The method of claim 22,
Under the normal mode,
The EMS server receives TOC information including market information and load information from a total operating center (TOC), establishes a transaction and scheduling plan for real-time control and emergency control based on TOC information, And a scheduling plan to the sub-agent,
The sub-agent establishes a real-time control scenario and an emergency control scenario based on the transaction and scheduling plan of the EMS server, real-time controls the managed plant based on the established real-time control scenario, acquires data from the managed plant, And the energy production status acquired from the target plant is shared with the EMS server. 24. The method of claim 23,
Under the normal mode,
The EMS server receives the demand response signal from the integrated operation center, re-establishes or modifies the transaction and scheduling plan in response to the demand response signal, transmits the modified transaction and scheduling plan to the sub-agent,
Wherein the sub-agent re-establishes a real-time control scenario based on the modified transaction and scheduling plan, and controls the managed plant in real time based on the re-established real-time control scenario. 25. The method of claim 24,
The sub-agent obtains the emergency state occurrence information from the managed plant, selects a specific emergency control scenario corresponding to the emergency state occurrence information among the emergency control scenarios, performs emergency control on the managed plant based on the selected emergency control scenario, And transmits the status alarm signal to the EMS server. 26. The method of claim 25,
Wherein in the emergency mode, the sub-agent proceeds with a preset load following control scenario according to the emergency control scenario and adjusts the output of the distributed power source device in accordance with the fluctuation of the critical load in accordance with the load following control scenario. Energy management system. 26. The method of claim 25,
Under the normal mode or the emergency mode,
The sub-agent confirms that the emergency state occurrence information acquired from the management target plant is the violation state information, selects the emergency control scenario closest to the violation state in the real-time control scenario or the emergency control scenario, Wherein the plant is emergency-controlled. 28. The method of claim 27,
It is confirmed that the emergency state occurrence information is information in which there is no corresponding control scenario in the real-time control scenario or the emergency control scenario, or when the difference between the predetermined reference output of the managed plant and the current output is greater than or equal to a certain value Wherein the agent-based energy management system includes an agent-based energy management system. 28. The method of claim 27,
The EMS server generates a new case database based on the violation state information from the sub-agent, re-establishes the transaction and the scheduling plan to which the new case database is added,
Wherein the sub-agent further performs emergency control of the managed plant by applying an additional emergency control scenario based on the re-establishment transaction and the scheduling plan from the EMS server. 30. The method of claim 29,
Under the emergency mode or the violation mode,
Wherein the sub-agent recognizes the failure of the emergency control or the additional emergency control from the data acquired from the managed plant or the emergency state occurrence information, and performs a pre-setting operation for the offline state action. 31. The method of claim 30,
Wherein the EMS server adds a new database based on failure case information from the sub-agent, and performs a default operation for offline situation of the entire system. 31. The method of claim 30,
Wherein the sub-agent detects initializable state data in a managed plant,
The EMS server confirms whether the system can be initialized based on the initializable state data from the sub-agent, transmits a system initialization signal to the sub-agent,
Wherein the sub-agent initializes the managed plant in response to the system initialization signal.

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