KR101856861B1 - Operation system applicable to distribution network and various type microgrid - Google Patents

Abstract

The present invention constitutes a solution module for the operation of a micro grid or a distribution system, extracts a solution module satisfying the operating objective of the micro grid or distribution system, the system configuration method and the server structure among the configured solution modules, The present invention relates to a method for constructing a general-purpose operating system applicable to various microgrid and power distribution systems that derive a final operating system by combining a plurality of solution modules having different types, It is applicable to grid and distribution system in general.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of constructing a general-purpose operating system applicable to a variety of micro-grids and power distribution systems, and an operating system constructed thereby. [0002]

The present invention relates to a method of constructing an operating system that is universally applicable to various types of microgrid and distribution systems, and to an operating system constructed thereby.

The microgrid can be divided into two types: community type (building, factory, campus, etc.), small scale (eg, household) and large scale (eg Ulleungdo) And the like.

If different operating systems should be developed and applied according to various applications and their operating methods, there are many problems in actual commercialization.

Generally, a microgrid operating system is composed of 1) a platform for acquiring information from a terminal device or a local control device, processing the information in the form of necessary information, and finally delivering information to a computing device (generally software) 2) an application that receives this information and generates final control values (to be delivered to the user or to be delivered to the device or device) by the internal logic, 3) a model for the overall system structure is managed And a data management system (DBMS) that supplies modeled data so that a platform or an application program can perform the function.

The data management system may be a management system for large-scale DB processing such as Oracle and MS-SQL that we commonly use, or a micro-grid of a very small single-bus structure (1 bus type) have.

Various existing technologies related to an operating system such as a micro grid have the following problems.

The prior art are systems for application to microgrid and large scale distribution systems of a certain type or size.

That is, the technology applied to the micro grid having a single bus-shaped system configuration of the micro grid is not considered as a part of the distribution system or a large-scale book. In addition, in the case of a technique for application to a large-scale distribution system, application to a small-scale micro grid can not be considered.

Therefore, there is a technology that can be applied only to a specific type of target system, and if the existing technology is applied, it is necessary to newly develop the system according to the application target, which is economically and temporally difficult.

It is also important to note that the type of system (small-scale, large-scale, small-scale stand-alone, large-scale stand-alone) and scale And does not suggest an operating system for common application.

Therefore, it is necessary to rebuild the operating system according to the target then, which is very inefficient and costly in terms of economy.

In addition, if the solution is hierarchically connected, the configuration of the entire system must be changed in order to mount a solution for another purpose.

The matters described in the background art are intended to aid understanding of the background of the invention and may include matters which are not known to the person of ordinary skill in the art.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an operating system that can be universally applied to various types of microgrid and distribution system having different types of objects, And to provide an operating system constructed thereby.

A method of constructing a general-purpose operating system applicable to various microgrid and power distribution systems according to an aspect of the present invention includes configuring a solution module for operating a microgrid or a power distribution system and configuring a solution module for the microgrid or power distribution system Extracting a solution module that satisfies the operational purpose, the system configuration method, and the server structure, and combining the extracted solution modules to derive the final operating system.

And an application program to be installed in the final operating system can be selectively applied to the micro grid or the distribution system.

The solution module for operating the microgrid or the power distribution system includes a node monitoring unit for monitoring a process processing unit, a data management unit for generating, modifying and deleting data stored in the database, a data processing unit for processing the measured and computed data, An application program manager for managing the operation of the driven application program, a terminal data processor for processing the data collected in the system, an external data processor for managing the data received from the external system, a screen processor for displaying the status of the operating system, And a report management unit for creating and editing a report by using the plurality of solution modules.

Each of the plurality of solution modules is configured as a module and is installed in the operating system.

In addition, data association between the solution modules is performed through a middleware provided in a separate memory.

A general operating system applicable to various microgrid and power distribution systems according to an aspect of the present invention includes a plurality of solution modules for operating a microgrid or a power distribution system and a plurality of solution modules for operating the microgrid or power distribution system, And the structure of the server.

And an application program to which the functions required for the microgrid or the distribution system are selectively applied.

The solution module includes: a node monitoring unit for monitoring a process processing unit configured; a data management unit for generating, modifying, and deleting data stored in the database; a data processing unit for processing the measured and computed data; An external data processing unit for managing the data received from the external system, a screen processing unit for displaying the status of the operating system, and a database to create and edit a report And a plurality of report management units are selected.

The plurality of solution modules may be modularized and detachable to the operating system.

The middleware may further include a middleware that is provided in a separate memory and performs data association between the solution modules.

On the other hand, for a linked micro grid system such as a plant or a building where the output stabilization and the peak reduction are driven by the renewal power generation and the ESS schedule control, an Eng / common element module for collecting terminal data and a A data processing module and a screen processing module for monitoring the device are selectively combined and an application program for load and power generation prediction and ESS scheduling is applied.

In addition, for community-type micro grid system for operation of peak operation by emergency operation and ESS schedule control, the Eng / Common element module for database management and terminal data collection and the processing of measurement data and historical data And an application program for topology processing, failure processing, load and power generation prediction, and ESS scheduling are applied to the data processing module and the screen processing module for monitoring the device.

Alternatively, for a small stand-alone micro grid system for the purpose of operating the ESS schedule control and reducing the generation fuel cost by maintaining the frequency stability through power generation and load control and increasing the renewable capacity, A data processing module for processing the module and the measurement data, and a screen processing module for monitoring the device are selectively combined, and an application program for load and power generation prediction and ESS scheduling is applied.

For large-scale stand-alone micro grid systems that are intended to operate the ESS schedule control, frequency stabilization through power generation and load control, and failure handling of power system, Eng / Common element module for database management and terminal data collection, A data processing module for processing measurement data and history data and synchronizing data, and a screen processing module for monitoring the device are selectively combined, and application programs for topology processing, failure processing, load and power generation prediction, and ESS scheduling are applied .

In addition, for the distribution automation system for remote monitoring and failure processing of the power distribution system, it is necessary to provide an Eng / Common element module for database management, terminal data collection and node monitoring, and processing and data synchronization of measurement data and history data A data processing module and a screen processing module for monitoring the device are selectively combined.

For the DMS system that is designed to optimize the distribution system optimization using the application program, the Eng / Common element module for database management, terminal data collection and node monitoring, and processing and data synchronization of measurement data and historical data And an application program for topology processing, system operation and control, load and power generation prediction, and ESS scheduling are applied to the data processing module and the screen processing module for monitoring the device.

According to the method for constructing a general operating system applicable to various micro grids and distribution systems according to the present invention and the operating system constructed thereby, it is possible to provide an operating system that can be universally applied to a distribution system and a microgrid (independent type, .

The operating system constructed according to the present invention can be configured such that the components are modularized and can be plugged in / out as needed, so that various types of objects (such as a building, a factory, a campus, a community, (Small-scale network, large-scale network, small-scale stand-alone, large-scale standalone), and scale, so that it is not necessary to re-create the operating system according to the target. great.

In addition, unlike the prior art, the solution (application-based) can also be modularized so that it can be freely selected and used according to the purpose and configuration of the target system.

In addition, the operating system must quickly reflect the change history of some systems to ensure the continuity of operation. To do so, the other elements in the system are directly modified (data addition / deletion / modification) Such maintenance is easy.

1 illustrates a general-purpose operating system construction method applicable to various microgrid and power distribution systems according to the present invention.
Figure 2 illustrates the structure of a general-purpose operating system applicable to various microgrids and distribution systems of the present invention.
FIG. 3 is a diagram illustrating a modular structure of the modules according to the present invention in association with a middleware memory.
4 is a flowchart illustrating an operation of a node monitoring unit included in the operating system of the present invention.
FIG. 5 illustrates an operation flow of a data management unit constituting the operating system of the present invention.
FIG. 6 shows an operation flow of a data processing unit constituting the operating system of the present invention.
FIG. 7 shows the detailed configuration and operation principle of an application program management unit that constitutes the operating system of the present invention.
FIG. 8 is a flowchart illustrating an operation of a terminal data processing unit included in the operating system of the present invention.
9 is a flowchart illustrating an operation of a screen processing unit included in the operating system of the present invention.
FIG. 10 shows a more specific operation flow of the screen processing unit of FIG.
Figs. 11 and 12 illustrate slip wire inspection and system reconfiguration.
Fig. 13 shows the failure handling process.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In describing the preferred embodiments of the present invention, a description of known or repeated descriptions that may unnecessarily obscure the gist of the present invention will be omitted or omitted.

The reason why the above-described prior arts do not have universal applicability is as follows.

1) In order to have universal applicability, it should be applicable regardless of system topology structure (single bus or multiple bus structure). For example, in the case of the interconnected micro grid constructed in 2010 and the grid grid in Jeollanam-do in 2014, the stand-alone micro grid was composed of a single bus structure and a plurality of generators and loads connected to one bus. On the other hand, a system for general distribution system operation and a large scale stand-alone micro grid such as Ulleungdo are multi-bus structure.

Therefore, there is a need for a data management and platform that can accommodate any form of grid topology.

2) Having universal applicability does not mean that the applications that derive the solution are all the same. However, it means that there is a data management system composed of a common facility model, and it is configured to accommodate various application programs necessary for operating micro grids and distribution systems for different purposes.

It is a system that can be applied to various micro grid and distribution system operation if it can select and use necessary application program according to the operation purpose of target system.

3) As the various components for operating system platform and application program are independent of each other, they can be plugged in / out according to various systems as mentioned in 1). This is possible only if the operating system is modulated.

4) Once developed and applied, the operating system requires periodic / non-periodic maintenance, and the most frequent of these is data management (data addition / deletion / modification).

Therefore, a generic operating system must provide a tool for this.

A system for general system operation (monitoring / control) (based on PC or workstation) can be divided into several operational purposes as follows.

1) System for remote monitoring and control

The objective is to measure the current state (analog, discrete) of the terminal device and deliver it to the operating system, and visually recognize the state of the operator.

In the case of control, the operator changes the state of the remote device. Typically, there is an automation system of the customer's supervised control and data acquisition (SCADA) and distribution system.

2) Remote monitoring and control using application program

1) and surveillance functions are similar, and it is a method that utilizes not only the operator but also the calculation results of various application programs for the control.

Related application environment and screen processing are required, and microgrid and distribution management system are representative.

Next, the system configuration method (system modeling) can be classified as follows.

1) Single bus configuration

The topology of the system treats all the devices (power generation and load) linked to one bus and is used for a relatively small scale system.

Typical examples include small independent grid-type micro grids and consumer micro grids.

2) Multiple bus configuration

The topology of the system treats the devices as connected to a plurality of buses, and grasps the connection relationship between the devices through the open / close state of the node-branch and switching devices.

It is used in relatively large scale systems, and is typically used in distribution automation systems and silverware, large-scale stand-alone and interconnected micro-grids.

In addition, the structure of the server is classified as follows according to the above purpose (related to the importance) and the scale of the system.

1) Single server

It is used when the operating system is composed of one PC or workstation, and the scale of the importance and the target system is all small.

Typical examples are consumer microgrids.

2) Multiple servers

The operating system is divided into main device and additional device (screen processing device, database management device, terminal data collecting device, etc.). It is used when the scale of the target system is relatively large and the importance (importance of operation interruption) is relatively small. If the amount of data to be processed by one PC or workstation is too large, it is configured to distribute it.

Typically, large, stand-alone, interconnected micro-grids are examples.

3) Redundant server

The operating system is composed of multiple servers, of which two or more important devices are independently configured. It is used when the size and importance of the target (the ripple effect of the outage) is very large.

Representative examples include distribution automation and DMS, and sometimes large, stand-alone, interconnected micro-grids can be constructed as well.

The method for constructing a general operating system applicable to various micro grids and power distribution systems according to the present invention is based on an operating system solution and structure that can be generally applied to various operational objectives, system configuration methods, and server structures described above.

FIG. 1 illustrates a method for constructing a general-purpose operating system applicable to various micro grids and power distribution systems according to the present invention.

1, the present invention solves the problem of the universal applicability of the prior art in the following way.

That is, a solution module satisfying the above-mentioned various operational objectives, system configuration method, and server structure is configured (S10), and necessary modules are extracted and combined according to the final operating system (S20) (S30).

Among the necessary elements for deriving the final operating system, the application program is configured to selectively apply the functions required by the respective operating systems, and the necessary application programs are loaded on the common platform as if they are assembled in blocks.

In order to realize this, we try to solve the problem of general versatility by providing a tool to standardize the essential data model, and to enable its engineering design and implementation.

FIG. 2 shows a structure of an operating system for realizing a general operating system construction method applicable to various micro grids and power distribution systems of the present invention.

2, a general-purpose operating system applicable to various microgrid and power distribution systems according to the present invention includes a node main device 100, a backup device 200 and middleware 300, The data monitoring unit 110, the data managing unit 120, the data processing unit 130, the application program managing unit 140, the application program 150, the terminal data processing unit 160, the external data processing unit 170, 180, and a report management unit 190, respectively.

Each of these modules can be independently connected to each other through the memory of the middleware 300 to form a modular structure capable of linking in a block form. Thus, a modularized operating system allows a block removable type to be applied to various applications regardless of scale, application object, To be applied.

The role of each component is summarized as follows.

1) The node main apparatus 100, backup apparatus 200,

The main device and the backup device are PCs or workstations, which are environments in which software of the operating system is driven, and basically include an operating system (OS).

The node main unit is a space where all operations during normal operation are performed directly. In case of maintenance and main equipment damage, the operation right is transferred to the backup unit. In order to guarantee immediate operation (continuity of operation) at the time of transfer of the operating rights, all the daemons of the main apparatus are synchronized with the backup apparatus, and this is handled by the data synchronization processing unit in the data processing unit 130. The same processing unit exists in the main apparatus and the backup apparatus.

2) The node monitoring unit 110

(Processors) in the main apparatus and the backup apparatus, and performs a check of a state beat (heart beat) with the backup apparatus. Intermediate, replay can be performed automatically and manually (by operator) if some problem occurs with the processor.

3) The data management unit 120

If non-real-time data related to the operation is managed by a file or a database management system (DBMS), it is the role of the data management unit 120 to manage creation, modification, and deletion thereof.

The data management unit is comprised of a data conversion unit that takes charge of conversion of existing DB or commercial DB file, a data generation unit that uses system diagram editing, a consultation data management unit that manages DB schema management, and a report management unit that generates and edits reports .

4) The data processor 130,

It handles all measurement and management and processing of the computed real-time data, and backs up necessary data as historical data after processing. It is also responsible for data synchronization between the main device and the backup device.

5) Application program management unit 140

Start and monitor all running application programs, and manage data necessary for its operation. The application program management unit also has a function of performing real-time data exchange with the data management unit 120 and monitoring the operation status of the application programs.

6)

Analysis, and control of the micro grid and the power distribution system, and the application program is controlled by the application program management unit 140. [0064]

Each of the application programs does not interfere with each other, and the data for execution and the resultant data exist in a separate memory managed by the application program manager 140. In addition, the results of the screen, history, and the like are also moved by the application program management unit 140.

7) Terminal Data Processing Unit 160 [

It is the place to collect the periodic and aperiodic data of the field device coming in through the communication device, and the list of field devices to be processed can be changed by setting.

8) The external data processing unit 170,

It is the place where the data is processed by the field instrument or not its simple operation data. Weather information data for load and power generation side and data to be received from other system.

9) The screen processing unit 180,

It is responsible for visualizing the data transfer between the system and the operator and the operator's command delivery. It is responsible for alarm / event processing, device monitoring and control, flowchart / disconnection diagram, specific diagram presentation and presentation of application program results.

10) Report management unit 190

Create a periodic or non-periodic report using the historical database (DB), and edit the format of the report.

The most important characteristic of the present invention is that each module can be mounted and detached as if a block is assembled according to characteristics of a target system to be installed in an operating system.

The data path for the organic combination of the modules is referred to as a middleware (middleware) 300, and the data connection between the geek modules is performed through the data path. In addition, since it is created in a separate memory independently of each module, it is possible to modularize the block assembly type.

FIG. 3 shows the modular structure of the modules according to the present invention.

As shown in FIG. 3, all the modules (nodes and processes) are linked around the middleware memory data, and the physical meaning of each part of the memory is defined in the database DB through the data management unit 120.

Each module that uses middleware memory data reads this definition information from the database (DB) at system startup.

Such a modular structure of the present invention such as the city has the following features.

Among the modules, the data management unit 120 and the report management unit 190 are directly connected to a physical database (DB) to perform management such as creation and modification of a database, report output, and the like, .

The middleware memory includes a part 310 for processing status monitoring information of a node and a process, a part 320 for processing measurement data from the terminal device and control command data to the terminal device, an operation expression based on the measurement data, A part 330 for processing the used calculation data, and a part 340 for inputting / outputting to the screen processing unit 180 of the application program data.

The node / process status monitoring information processing part 310 comprises node and process IDs defined in the database, status information of each node / process, and update time.

The node monitoring unit 110 performing the status monitoring function fetches the definition data from the database at system startup. Then, this definition information and middleware memory data are linked and processed.

The instrumentation / control data processing part 320 comprises each instrument ID, communication state, analog and binary point values and update time.

The physical meaning of each value (open / close, A-phase voltage, B-phase current, etc.) of the respective values is determined by the data processing unit 130, which processes the measurement / control data, It is taken from the database and processed by linking this information with the memory data value.

The calculation data processing part 330 includes a calculation formula ID, a device ID and a point ID, a previous / present value, and an update time. As described above, the calculation formula information is obtained by the data processing unit 130 that processes the data from the database and processes the information in association with the memory data.

The application data processing part 340 is composed of a facility ID or a hierarchical group ID (which is not a real facility such as a substation, a DL, a MTR, but a group concept of many facilities in the hierarchical structure of the system) and application calculation values.

Likewise, there is only a value, and the actual physical meaning is fetched from the database at the time of start-up in the screen processing unit 180 and the application program management unit 140 for processing them.

The measurement / control data transfer between the terminal data processing unit 160 and the measurement data processing unit in the data processing unit 130 uses a message transfer method (a method of directly transferring data between two processes without using a middleware memory).

Therefore, in order to use the measurement data processing unit process of the data processing unit module, a terminal data processing unit module is necessarily required.

The external data processing unit 170 (external data via the internet network such as weather information) is also linked to the application program management unit 140 through a message communication method. Therefore, if an application program uses external data, an external data processing module is necessary.

Hereinafter, the operation flow of each module will be described with reference to FIG. 4 to FIG.

4 shows an operation flow of the node monitoring unit 110. As shown in FIG.

As shown in FIG. 4, the node monitoring unit 110 has a function of monitoring only the driving state of individual processes indefinitely by repeating, and thereby, the state (driving or stopping of driving) And updated at the status information management point. In addition, the screen processing unit 180 displays the state on the screen. If the process status is "normal operation", the continuous process operation status is checked.

If the process state is "stopped", the process will restart automatically if it does not exceed the predefined number of restarts. The screen processing unit 180 may manually restart the process. If the number of restarts is exceeded, the backup system 200 is switched.

If the system is a small-scale system without the backup system 200, the process is stopped in the driving stop state and is displayed as a stop state in the screen processing unit 180.

5 shows an operation flow of the data management unit 120. In FIG.

The data management unit 120 includes a database DB, a data conversion unit 121, a negotiated data management unit 122, a data generation unit 123, and a report management unit 124.

The database (DB) is divided as follows.

Fixed data: Equipment based on IEC 61970 and 61968, including all hierarchical and non-hierarchical models into a topology-related database. This data is called fixed DB (static) since it is fixed regardless of operation / measurement data.

Operational data: This is a DB that manages the format of the data to be used by the data processing unit 130 and the screen processing unit 180. This is copied and used in the middleware memory 300 when the system is started.

Application program use data: This is a DB that manages the format of data to be used in the application program management unit 140. [

Matching information data of application data and application program use data: This is a DB used for data exchange between the data processing unit 130 and the application program management unit 140 in the screen processing unit 180.

History data: This is a DB configured to be stored in a data processing unit 130, an application program management unit 140 or the like at predetermined time intervals or after an application program is terminated and used for later history analysis.

The data conversion unit 121 includes a conversion function for generating fixed data and operation data through conversion of commercial data and existing usage data and a conversion function for converting application program usage data, And generating the inter-matching information data.

The data management unit 122 has a function of editing the schema of the fixed data, the operation data, and the application program use data. It also has a management function of history data.

The data generation unit 123 has a function of editing a system diagram and inputting systematic data to newly generate fixed data without data conversion, a function for adding / editing frequently used data in a library, and a function for generating a middleware memory.

The report management unit 124 has a function of generating a report using the history data and a function of editing the format of the report.

Next, the middleware memory 300 is a volatile data memory. All the functions (metrology data processing unit, screen processing unit, application program management unit, and the like) refer to the memory and operate the database, The same structure is maintained until the memory is updated.

The measurement data processing unit stores / updates the measurement data uploaded from the field device in the memory, and the remaining screen processing unit and application program management unit stores the measurement data in the middleware memory Copy and use it, and copy the processing result back to this memory.

The data management unit 120 is capable of data generation / management (editing, modification, and the like) using a schematic diagram editing and input function as shown in the figure so as to perform a common DB management on the variation of the topology characteristic of the target system.

The database configuration is divided into the following three categories so that all data necessary for operation and maintenance of the system can be managed in a lump.

Basic DB: The hierarchical structure of the system configuration (power manager, substation, D / L or feeder, etc.) and topology structure based on the international standard CIM (IEC 61970/61968), and the properties of system facilities (transformer, line, generator, etc.) And the other two DBs are created based on this information.

Operational DB: A real-time operating database (usually located in memory) to be used in a data processing unit, an application program management unit, or an individual application program. The structure is created in the Basic DB and metered and computed data is continuously replaced .

Historical DB: It is a place to store data to perform analysis and reporting of operational situation through periodic / non-periodic storage of operational data (measurement, application program result, alarm and event, etc.) And the contents are accumulated and stored periodically in the data processing unit and the application program management unit.

Next, the operation flow of the data processing unit 130 for performing the measurement, calculation, history data processing, data exchange between main / backup and data synchronization with system recovery is shown in FIG.

Referring to FIG. 6, in the terminal data processing unit, the measurement data is copied (transferred) by attaching the ID and the point number of the corresponding terminal device on the memory of the middleware linkage (linkage memory between the terminal data processing unit and the data processing unit). The transmitted data is monitored by the data processing unit for infinite repetition and judges the newly changed data. It is determined whether the new change information is the alarm / event information, and if not, the new change information is stored in the corresponding data storage position on the middleware memory. If this information is the information of the alarm / event nature, it is transferred to the historical data management section of the data management section of FIG. 5, the history is stored, and the history is transferred to the local memory of the screen processing section and outputted on the screen in real time.

Next, when the predetermined calculation data cycle (for example, 10 seconds) is reached, the calculation data processing (copied to the operational database on the middleware memory) stored in the calculation data formula management unit of the data management unit 120 And new data is generated using an equation). The generated operation data is also updated in the corresponding memory in the middleware.

The application program operation result is transmitted periodically from the application program management unit to the middleware link memory (linkage between the application program management unit and the data processing unit) periodically for display and history storage. Also, And judges newly changed data. The application operation data thus transferred is also updated in the corresponding memory in the middleware.

Thereafter, it is determined whether the history storage period of the pre-set measurement / calculation data and the application program history data storage period are satisfied, and if so, the measurement / calculation data and the application program data are stored in the history DB.

It is determined whether or not the backup storage period and the application program backup data storage period of the previously set measurement / calculation data have been reached, and if so, the data is stored as a file or a database. The backup data is a device for data synchronization at the time of switching between the main and backup servers or in case of a single server restart.

7, the detailed configuration and operation principle of the application program management unit 140 have been described.

7, the application program management unit includes an M / W (middleware) association memory management unit 141, an Appl application memory management unit 142, a process monitoring unit 143, and a drive management unit 144 . The details and role of each part are as follows.

The M / W linkage memory management unit 141 includes a measurement data acquisition function for transferring, to the application program, the field device acquisition data acquired by the terminal data processing unit 2-8 and processed through the data processing unit 130, A function for acquiring information, an asynchronous message monitoring function in a screen and other devices, and a function for transmitting an application program result to a M / W for services such as a screen.

Appl memory management unit 142: This is a memory management unit that processes data randomly transferred from the M / W associative memory management unit into one data set of a snapshot type and eventually causes the application program to perform an operation using the data set Memory management function. These memories include a base memory for updating measurement data at that time in the M / W association memory management section, a real-time memory constituting one set periodically for driving periodic application programs, an application program And an event memory that constitutes one set when an event occurs for driving. These memory management functions and the memory copy and delete functions.

Process monitoring unit 143: This is configured to monitor the operating state of an application program and manage communication between linked programs.

The drive management unit 144 includes a configuration management function of an application program to be driven, a sequential / event drive function, and an application program stop function for sequentially or event-driven individual application programs.

The data flow between each of the management units is as follows.

The M / W linkage between the memory management unit and the Appl memory management unit inputs the measurement data and transmits the result of the application program.

An application program start and stop request transmitted from the node monitoring unit 110 is transmitted from the M / W linkage memory management unit to the process monitor unit. In the process monitor unit, the M / W linkage memory management unit transmits a request ≪ / RTI > When receiving the transmission request, the M / W association memory management unit receives the application program result data in the Appl memory management unit.

An application program start / stop request signal and an application program start completion signal are exchanged between the process monitoring unit and the drive management unit.

A request for creating, copying and deleting an Appl memory is transmitted between the process monitoring unit and the Appl memory management unit. This command can not be directly transferred from the drive management unit to the Appl memory management unit, and is transmitted through the process monitoring unit.

A flow chart of the operation principle of the terminal data processing unit 160 is shown in FIG.

As shown in FIG. 8, the terminal data processing unit has the following features.

The system proposed in this patent considers the data connection with the external system as follows.

That is, all the terminal devices of the system controlled by the proposed system are directly connected through the proposed system, the wireless communication network, and the communication device, and the data processing thereof is performed by the terminal data processing unit.

In addition, the terminal device connected to the connected external system recognizes the terminal device as another terminal device from the viewpoint of the proposed system, and transmits and receives the measurement / calculation data and the transmission and reception of the control command (data) And is performed by the terminal data processing unit.

When the measurement and control commands for the terminal device directly connected by the data processing unit and the terminal device connected to the external system are transmitted (both transmitted and received), the control and the control are separated from each other and transmitted to the terminal device or the external system It confirms that the control result is received from the terminal device or the external system, and if the data is data of the external system, transmits the result value to the virtual terminal device managed as a separate memory in the data processing part. Both the directly connected terminal device and the virtual terminal device of the external system are delivered with the final result value to the data processing section.

In the case of a general measurement command, it is checked whether a predetermined total measurement period has been reached. If so, the entire measurement is performed. If not, the terminal apparatus requests event measurement. If the measurement is for the terminal device of the external system, the result value is transferred to the memory area of the virtual terminal device as mentioned above, and all data is transferred to the data processor. In the present invention, measurement data is classified as follows.

Event measurement: Requesting changed information of all terminal devices (including external systems).

Total measurement: Set the measurement cycle to a multiple of the event measurement cycle (once for event measurement X times) by requesting information of all terminal devices (including external systems) (regardless of change).

Next, FIG. 9 shows a flow chart of main functions of the screen processing unit 180 using the data collected by the data processing unit 130. FIG.

As shown in FIG. 9, the screen processing unit 180 has the following features.

The measurement data and the alarm / event data are copied onto the screen processing unit memory via the terminal data processing unit 160 and the data processing unit 130. In the case of the analog measurement value, the measurement data and the alarm / event data are displayed on the single line drawing and the ESS dedicated screen

The state of charge (SOC) of the ESS is input, and the ESS SOC blocking operation is performed as shown in FIG. 10 with reference to the preset maximum / minimum set value and the deadband set value.

As shown in FIG. 10, when a SOC violation occurs, the screen processing unit outputs a false message, switches the ESS to a stand-by state, and stops the ESS automatic schedule control application program currently being executed. If the user sets the charge / discharge mode switch and forcibly executes a run command, a message is displayed to switch to the discharge mode when the current SOC violation state is the maximum value violation state and when the re-execution is performed in the charge mode. In the discharge mode, it is re-executed. If the current SOC is lower than the maximum dead zone setting value (Amax), the mode switching is performed. Otherwise, a message is displayed to maintain the discharge mode. For example, if the current SOC is 80% and the maximum dead zone setting value Amax is 70%, a discharge mode hold message is output.

On the other hand, if it is in the minimum value violation state, a message is displayed to switch to the charging mode if the re-execution is performed in the discharge mode. In the charging mode, it is re-executed. If you try to switch the mode after re-running, the mode switch is performed if the current SOC is higher than the minimum dead zone setting value (Amin). Otherwise, a message is displayed to maintain the charge mode. For example, if the current SOC is 20% and the minimum dead band zone setting value (Amin) is 30%, a charge mode maintenance message is output

When the switch state change data is inputted, the slip wire inspection and the system reconfiguration are performed as shown in Figs. 11 and 12. Fig.

As shown in FIG. 11 and FIG. 12, the slip wire processing is performed in the following order: path 1) outgoing in the system (feeder start point breaker in case of power distribution system, branch breaker / switch in power supply system in case of consumer system) If the ESS or generator is in operation, it will be judged by searching from the open to the opened switch. Areas that do not belong to both paths are de-energized. One-line diagrams are used to create a tree structure based on plant data using the system topology and the closed state of switching devices (breakers, switches), set the branching direction of the tree, Automatically inputs information, checks collision between equipment objects, and performs collision avoidance to reset the branching direction to resolve the collision if a collision occurs, and resets the coordinate information.

When alarm / event data is input, newly generated alarm / event information is displayed on the alarm / event display screen. In the event that a failure related event occurs, the failure process process is executed. As shown in FIG. 13, the failure judgment for operating the failure handling process is divided into three processes as follows.

Faults occurring between the automation switches in the system control system: Judge whether a fault signal (fault indicator signal, FI alarm) has occurred or not. If FI occurs, determine the temporary /

(In case of distribution system, feeder start point, and customer measurement is branch point with power company system.) Failure occurred under protection device:

Failure: The state of the withdrawal protection device is "close" or when the voltage is measured with no voltage, and the state of the upper system (the failure of the power supply system if it is a power distribution system, It is judged as a failure, and the failure processing is performed

The screen processing section monitors the alarm data indefinitely. When an alarm occurs, it distinguishes the three types of faults mentioned above. If the fault occurs between the automatic switches in the system control system, it detects the permanent / (12-3). If the system is under direct damage within the system, the fault information of the fault current is determined and the fault is also indicated in the fault diagram. If there is a fault in the upper system, it is judged whether there is a voltage abnormality and whether the switch is opened or closed.

At the same time that the occurrence of the failure is displayed in the single line drawing, the failure processing process screen is displayed at the bottom of the single line. In addition, the occurrence of a failure is acknowledged, and at the same time, several blocking commands are transmitted. In the application program management section, the periodic driving application program is stopped according to the transmitted signal. If it is decided whether to execute the fault section search and executed, the drive command of the fault section search application program is transmitted to the application program management section in the form of a message. The application management section organizes the fault related information, generates a memory in the Appl memory management section for driving the application program, drives the application program, and transmits the result to the screen processing section again. The screen processing unit displays the result (a list of operation switches for isolating fault zones and their operation sequence) on the screen. Operators can manipulate according to the switch list and operation sequence output by the application program result, or if the result is not correct from the viewpoint of the operator, the manual operation can be performed (12-9). When the restoration of the power failure other than the failure section is executed, the result of the opening / closing device operation up to that time is transmitted as a message to the application program management section, and at the same time, the drive command of the power failure recovery program is transmitted. Then, the execution result of the power failure recovery program is displayed on the screen, and the power failure recovery is performed through the operation by the operator. The user can terminate the fault handling process and in this case the previously occurring blocking command is released (12-14). It is determined whether both the fault section isolation procedure and the power failure section recovery procedure have been processed (12-15). If all the fault sections have been processed, the fault case is added (12-16) on the fault history information screen. Here, the failure occurrence time, operation switch list, and the like are recorded in order. Finally, when the operator inputs the duration of the fault on the fault history information screen (this may be much different from the fault occurrence time) and ends, information related to the fault is stored in the history DB.

Hereinafter, an embodiment will be described in which individual modules are combined according to respective application points by a general-purpose operating system construction method applicable to various micro grids and power distribution systems according to the present invention.

1) MG system linked to factories and buildings

The operation objective is output stabilization and peak reduction through new renewable power generation and ESS schedule control. In this case, the module configuration consists of Eng / common element (terminal data collection) + data processing (measurement data processing) + application program (prediction / ESS scheduling) + screen processing (device monitoring, application program) / ESS control program for power generation prediction, peak reduction and independent operation switching.

2) Community MG system of power distribution system

The purpose of operation is to reduce the peak through independent operation and ESS schedule control in case of emergency. In this case, the module configuration consists of Eng / common elements (DB management, terminal data collection) + data processing (measurement data processing, history data processing) + application program (topology processing, failure processing, prediction / ESS scheduling) + screen processing Processing, device monitoring, application program), and the application program is composed of load prediction, ESS control for peak reduction, and fault handling automation program.

3) Standalone MG system of small books

The purpose of operation is to maintain the frequency stability through ESS schedule control and power generation / load control, and to reduce generation fuel cost by increasing the renewable capacity. In this case, the module configuration consists of Eng / common element (terminal data collection) + data processing (measurement data processing) + application program (prediction / ESS scheduling) + screen processing (device monitoring, application program) And ESS SOC prediction through power generation prediction, and emergency control (load / generator) program.

4) Standalone MG system of large books

The purpose of operation is to maintain frequency stability through ESS schedule control and power generation / load control, and to deal with distribution system failure. In this case, the module configuration consists of Eng / common elements (DB management, terminal data collection) + data processing (measurement data processing, history data processing, data synchronization), application programs (topology processing, failure processing, prediction / ESS scheduling) The system consists of processing (drawing processing, device monitoring, application program), ESS SOC prediction through load and power generation prediction, emergency control (load / generator) and fault handling automation program.

5) Distribution automation system of distribution system

The purpose of operation is remote monitoring of the power distribution system and failure handling by the operator. In this case, the module configuration consists of Eng / common elements (DB management, terminal data collection, node monitoring) + data processing (measurement data processing, history data processing, data synchronization) + screen processing (drawing processing, There is no special configuration for the application.

6) DMS system of distribution system

The purpose of operation is to optimize the distribution system (voltage, fault handling) using application program. In this case, the configuration of the module is composed of Eng / common elements (DB management, terminal data collection, node monitoring) + data processing (measurement data processing, history data processing, data synchronization) + application programs (topology processing, Scheduling) + screen processing (drawing processing, device monitoring, application program), and the application program is subjected to topology processing, state estimation, load estimation, voltage control, and fault handling automation.

While the present invention has been described with reference to the exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

S10: Battery SOC measurement
S20: Comparison of SOC and sub-criteria 1
S21: Controllable load blocking
S22: Battery SOC measurement
S23: Comparison between SOC and sub-criterion 2
S24: Diesel generator operation output command transmission
S30: Comparison of SOC and upper standard 1
S31: Controllable load input
S32: Battery SOC measurement
S33: Comparison of SOC and upper standard 2
S34: Control of renewable energy power output

Claims (16)

delete delete delete delete A solution module for the operation of a micro grid or distribution system,
A solution module that satisfies the operating objective of the microgrid or the power distribution system, the system configuration method, and the server structure among the configured solution modules is extracted,
Combine the extracted solution modules to derive the final operating system,
Wherein the application program installed in the final operating system is selectively applicable to the functions required for the micro grid or the power distribution system,
The solution module for operating the microgrid or distribution system comprises:
A data management unit for generating, modifying and deleting data stored in the database; a data processing unit for processing the measured and calculated data; an application program management unit for managing the operation of the driven application program; A terminal data processing unit for processing data collected in the system, an external data processing unit for managing data received from the external system, a screen processing unit for displaying the status of the operating system, and a report management unit for creating and editing a report using the database And a plurality of solution modules,
Wherein each of the plurality of solution modules is configured as a module and is installed in an operating system by being detached from the operating system,
And data linkage between the solution modules is performed through a middleware provided in a separate memory.
A method for constructing a universal operating system applicable to various microgrid and distribution systems. delete delete delete delete A plurality of solution modules for operating a micro grid or a power distribution system are selectively assembled in accordance with an operation purpose of the micro grid or distribution system, a system configuration method, and a server structure,
An application program to which a function required for the microgrid or distribution system is selectively applied,
The solution module includes:
A data management unit for generating, modifying and deleting data stored in the database; a data processing unit for processing the measured and calculated data; an application program management unit for managing the operation of the driven application program; An external data processing unit for managing data received from the external system, a screen processing unit for displaying the status of the operating system, and a report management unit for creating and editing a report using the database, .
Wherein each of the plurality of solution modules is configured as a module and is detachable to the operating system,
Further comprising middleware which is provided in a separate memory and data association between the solution modules is performed,
A universal operating system applicable to various microgrid and distribution systems. The method of claim 10,
For the linked micro grid system such as factory, building, etc., in which the output stabilization and peak reduction are driven by new and renewable power generation and ESS schedule control, Eng / Common element module for terminal data collection and data processing And an application program for load and power generation prediction and ESS scheduling is applied.
A universal operating system applicable to various microgrid and distribution systems. The method of claim 10,
In order to operate community-type micro grid system for operation of emergency operation and peak reduction through ESS schedule control, the Eng / Common element module for database management and terminal data collection and the data for processing of measurement data and historical data A processing module and a screen processing module for monitoring the device are selectively combined and an application program for topology processing, failure processing, load and power generation prediction, and ESS scheduling is applied.
A universal operating system applicable to various microgrid and distribution systems. The method of claim 10,
For the small stand-alone micro grid system, which aims to reduce the generation fuel cost through the maintenance of the frequency stability by ESS schedule control and power generation and load control, and the increase of the new renewal capacity, Eng / Common element module A data processing module for processing the measurement data and a screen processing module for monitoring the device are selectively combined and an application program for load and power generation prediction and ESS scheduling is applied.
A universal operating system applicable to various microgrid and distribution systems. The method of claim 10,
For large-scale stand-alone micro grid systems that are intended to operate the ESS schedule control and maintenance of frequency stability through power generation and load control, and to deal with the failure of power distribution system, Eng / Common element module for database management and terminal data collection, A data processing module for processing history data and data synchronization, and a screen processing module for monitoring the device are selectively combined and an application program for topology processing, failure processing, load and power generation prediction, and ESS scheduling is applied As a result,
A universal operating system applicable to various microgrid and distribution systems. The method of claim 10,
For the distribution automation system for remote monitoring and troubleshooting of the distribution system, it is necessary to use Eng / common element module for database management, terminal data collection and node monitoring, data processing for processing of measurement data and historical data, and data processing for data synchronization And a screen processing module for monitoring the module and the device are selectively combined.
A universal operating system applicable to various microgrid and distribution systems. The method of claim 10,
For the DMS system that aims to optimize the distribution system using the application program, there are Eng / common element module for database management, terminal data collection and node monitoring, data processing module for processing of measurement data and historical data and data synchronization And a screen processing module for monitoring the device are selectively combined and an application program for topology processing, grid operation and control, load and power generation prediction, and ESS scheduling is applied.
A universal operating system applicable to various microgrid and distribution systems.

Images