KR20150144488A - system and method for training virtual fault of electric power system - Google Patents

Abstract

The present invention relates to a system and a method for training by using a virtual fault of an electric power system an immediate corrective action of a trainee wherein a device in which an accident occurred displays the electric power system on a screen, sets a variety of the virtual faults inputted by an input means, generates a virtual fault signal corresponding to the set virtual faults, and reflects a change state signal by receiving the signal and checking the change details; and a minimal mosaic switchboard receives the virtual fault signal generated from the device where the accident occurred, displays the virtual fault and an alarm corresponding thereto on the electric power system, receives a switch or button operation inputted by the trainee, changes the status of an electric power system facility corresponding thereto, displays the changed status, generates the change state signal, and transmits the signal to the device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and method for training a power system,

The present invention relates to a power system simulation failure training system and method, and more particularly, to a power system simulation failure simulation system and method for performing a simulation failure training on a rapid recovery measure of a training institute in connection with a failure of a power system.

With the development of the industry, power dependency is becoming very high, and the power system is becoming increasingly complicated and gigantic, making it more and more difficult to operate the power system more reliably. Although SCADA (Supervisory Control And Data Acquisition) and EMS (Energy Management System) are installed in the power system to assist the operator, the operator's task is still complicated and the need for the ability to operate the power system safely continues to increase have.

On the other hand, as a small fault caused by a lightning strike has a serious impact on finance, industry, and economy, it must be addressed immediately even if it is a small breakdown for the stability of the power system, For example, if a line fault occurs even in a ground fault in a non-grounded system with very low fault currents, the operator should immediately identify it and establish appropriate countermeasures to stabilize the non-grounded system. Therefore, it is necessary for the operator to have a skilled operation technology for the power system, and to learn the processing technique of the inexperienced failure through simulation of the actual power system.

In this power recovery system, a pre-scenario based computer simulated training system of unit substation size is used, but it is difficult to maintain and extend the system and there is a disadvantage that arbitrary control of operators and various recovery simulations are still impossible Have.

Korean Registered Patent No. 10-0487979 (Registered on Mar. 28, 2005) discloses a system for generating a power system simulation fault using a database and a database, and a method of operating the system using GUIs including CCU, MPU, OPC, DIU, A CCU for monitoring a field device of a power system to transmit data related to a failure in the field and receiving a command of the transmitted operator; A simServer for transferring the state of the field device transmitted from the CCU to the OPC, a command of the operator to the CCU, and a data of the shared memory of the MPU to the simulator is provided. In accordance with the SimWS request of the simulator, An MPU for transmitting the data of the mobile terminal via a network; An OPC for confirming the state of the field device transmitted through the MPU on the screen, receiving an instruction through the screen operation of the operator, and transmitting the command to the MPU; And substation supervisory control panels consisting of DIUs for editing and entering any data required by the MPU, OPC and CCU: and connected to the MPU via a network so that they can be given various training and training situations, SimWS that acquires the data and stores the received data in the local database is installed, and an algae calculation program that calculates the algae of the entire substation by reading the system data is mounted and the shared memory is updated, An event message to the clientLink that allows the same experience to be experienced; a clientLink is a lecturer console that uses the received data to create a shared memory; A serverLink that receives the simulated failure scenarios selected by the instructor through the clientLink, OPC, which is a process to monitor and control the system, and GUIDE, which performs any work necessary for education and training. A simulation control panel which is implemented in the same manner as the monitoring control panel to be used, generates a simulated fault in software, and stores the data downloaded from the MPU in a simulation database; And data related to monitoring, control, and measurement, and stores simulation related information stored in ind_point, ana_point, cal_point, and rtu_point tables, and information related to training, and includes scenario, resto_p, ann_p, fault_p, analog_p, and relay_p tables A training result database constructed as trainee, train_result, and subicon_result tables, and a training result database constructed of a trainer table, a line table, a transformer table, a Sh.R table, a breaker table, a breaker table, , A Bus-Tie CB table, and a tap non-table, wherein the training database comprises a database including resto_p, ann_p, fault_p, analog_p, and relay_p tables. By configuring the database separately from the scenario database, And a database having tables resto_p, ann_p, fault_p, analog_p, and relay_p are connected to the database. According to the disclosed technology, a method of realizing and repairing a failure in a power system is implemented similar to restoration in a real field, and a virtual reality or an expert system To implement a simulator, which can be a simulator more similar to an actual system.

Korean Registered Patent No. 10-0543543 (Registered on Mar. 01, 2006) provides an interpretation and training method for arbitrary system operation in order to improve the crisis coping ability of operators in case of a major power outage in the domestic grid, And the operation method of the education and training system to which the electric power system failure recovery training and training algorithm is applied for development into the environmental system. According to the disclosed technology, there is provided a method of operating an education and training system employing a power system failure recovery training and training algorithm, comprising: a graphical interface for generating a flowchart of a power system failure recovery training and training, database management, Once training is started, the line-on / off, adjusting the generator output, manipulating the load input system, and if there is a pre-interruption command for the transmission network above 154 kV before the system operation, Setting the active power, reactive power, voltage and phase angle of all the buses to zero. When the system operation is completed, the education and training system executes the analysis module to perform a static DB and a dynamic DB, / E data and converts it into a database constructed with SAV and CAS extension which are data formats Constructing a Y-matrix for all transmission grids, performing algae computation, determining generator overrun power supply overrun, bus overvoltage and line overload, and graphically delivering the result to a user via a user graphical interface After the power system analysis is completed, the education and training system again prepares for the user's system restoration operation. At this time, when the grid connection instruction is given to the education and training system, the current power system data is stored in the CAS file And a step of performing the step of:

The conventional power system simulation failure training system as described above has a disadvantage in that the use method is still complicated for use by the training center, and the recovery operation after the occurrence of the failure is still at a level of acquiring the recovery procedure as text.

Korean Patent No. 10-0487979 Korea Patent No. 10-0543543

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a power system simulation failure training system and a power system simulation failure simulation system capable of performing simulated fault- ≪ / RTI >

In order to solve these problems, according to one aspect of the present invention, a power system is displayed on a screen, inputs and sets various simulated fault conditions through input means, generates a simulated fault signal corresponding to various simulated fault conditions An accident generator for receiving the change status signal and confirming the change history and reflecting the changed status on the power system screen; And receiving a simulated fault signal generated by the accident generator and displaying a simulated accident and an alarm corresponding to the simulated accident signal and the alarm on the power system, receiving a switch or a button operation of the training center and changing the state of the corresponding power system equipment, And a reduced mosaic switchboard for generating a change state signal and transmitting the change state signal to the accident generator.

In one embodiment, the reduced mosaic switchboard displays the status and measurement values of the power system facility by displaying the power system in the form of a mosaic tile, and displays the status and measured values of the power system facility by the interlock condition corresponding to the switch or button operated by the training center And a state in which the electric power system is not supplied or put in the state of the power system facility.

In one embodiment, the reduced mosaic switchboard is equipped with accidental display logic in accordance with various interlock conditions electrically coupled to the power system facility and conditions at the time of receiving a mock fault signal, It analyzes the condition of the interlock according to the operation of the switch or button of the training center, generates additional accidents according to the result of the operation of the switch or button of the training center, and displays the result of the additional accident .

In one embodiment, the miniature mosaic switchboard comprises: an enclosure formed by combining a plurality of panels; A main panel is provided with a main CPU, a DIM, a DOM, a power unit, and a communication unit, and is connected to the accident generator through Ethernet communication. A master unit that interprets the operation signal of the training center and displays the interpreted result; Wherein each of the panels includes a main CPU, a DIM, a DOM, and a power unit, wherein the main CPU, the DIM, the DOM, and the power unit are connected to the master unit via Ethernet communication, A plurality of slave units receiving operation signals of the training source and providing the operation signals to the master unit; And an alarm window, a digital meter, a switch, an operation button, a switch, and a button lamp on the front of the enclosure to display accident information and analysis results under the control of the master unit or the slave unit, And a plurality of power system displays for transmitting signals to the master unit or the slave unit.

In one embodiment, the master unit interprets incident information, searches for a slave unit to display the analyzed incident information, and transmits the incident information interpreted as the slave unit searched.

In one embodiment, the master unit provides status information about the power facility to the slave unit via Ethernet communication to turn on or off the power system display, and the operation of the switches and buttons acquired by the slave unit Information is analyzed and analyzed, and the determined result is retransmitted to the slave unit for display.

In one embodiment, the master unit transmits the measurement information acquired from the accident generator to the digital meta through the communication unit and displays it as analog information.

In one embodiment, the slave unit acquires operation information when there is an operation signal of a training source on a panel to which the slave unit belongs, and then transmits the acquired operation information to the master unit through Ethernet communication. The controller may trip the relevant breaker or display an alarm on the accident information on the power system display.

In one embodiment, the power system display includes a transmission line side fault that is connected to a substation and a substation under the control of the master unit or the slave unit, The fault on the first bus line, the fault on the transformer installed in one substation, and the distribution line connected to one transformer in order to share the load for each transformer by section for each transformer. And the second bus-side failure is divided into a plurality of failures.

In one embodiment, the main CPU of the master unit receives the operation signal of the training source through the slave unit, verifies the operation signal through the interlock logic, transmits the accident expression to the slave unit according to the verification result, And the measurement information is received from the accident generator through the communication unit and displayed as analog information.

According to another aspect of the present invention, there is provided a fault diagnosis method comprising the steps of: displaying an electric power system on a screen of an accident generator, receiving and setting various simulated fault conditions through input means, and generating simulated fault signals corresponding to various simulated fault conditions; The miniature mosaic switchboard receives the simulated fault signal and displays simulated accidents and alarms corresponding to the simulated fault signal on the power system, receives the switch or button operation of the training center, changes the state of the corresponding power system equipment and displays the changed state Generating and transmitting a change status signal; And receiving the change status signal and confirming the change history and reflecting the change status on the power system screen.

In one embodiment, the generating and transmitting the change status signal includes receiving a training start command from the accident generator after performing a system initialization when the master unit of the reduced mosaic distribution board receives power, Determining an accident type from the simulated fault signal when the master unit receives the simulated fault signal and analyzing a simulated fault corresponding to the determined type of accident; Generating a fault display information corresponding to the simulated fault after the master unit processes the interlock condition logic corresponding to the simulated fault analyzed; Confirming whether the master unit is a self unit or a slave unit to display an alarm for the failure display information; The master unit may trip the associated circuit breaker in response to the simulated fault analyzed by the master unit or to output a failure output signal to the power system display of the reduced mosaic switchboard To be displayed; And a step in which the master unit monitors the recovery operation of the training source in real time, receives the recovery operation of the training source, verifies the same via the interlock condition logic, and displays the accident expression on the power system display according to the verification result .

In one embodiment, the step of generating and transmitting the change status signal includes the steps of: when the unit for displaying the alarm for the failure display information is a slave unit, the master unit transmits the change status signal to the slave Searching for a unit and transmitting fault indication information to the slave unit searched for; And the master unit monitors the recovery operation of the training source in real time through the slave unit searched for, receives the recovery operation of the training source, verifies the same through the interlock condition logic, and outputs the accident expression to the slave unit To the mobile station.

In one embodiment, the step of generating and transmitting the change status signal comprises: receiving an initial value from the master unit after performing a system initialization when a slave unit of the reduced mosaic distribution board receives power; The slave unit trips the associated breaker according to the received initial value or transmits an initial output signal to the power system display of the reduced mosaic switchboard to display it; And when the slave unit receives the failure indication information from the master unit, tripping the associated breaker or transmitting an alarm for the failure indication information to the power system display to display the fault indication information .

In one embodiment, the step of generating and transmitting the change status signal may further include a step in which the slave unit monitors the recovery operation of the training source in real time, receives the recovery operation of the training source, and transmits the recovery operation to the master unit .

According to the present invention, it is possible to perform the simulation in the same environment as the actual failure by performing the simulation failure training on the rapid recovery measure of the training center in relation to the failure of the power system, and the usage is simple In addition, the recovery procedure after the occurrence of a fault can acquire a recovery procedure to suit the actual situation. In addition, it is possible to acquire a recovery procedure in accordance with the actual situation, and also to perform a ripple fault caused by a misoperation of a power source (or a training institute) working in a power station, a feeder substation, And it is possible to improve the fault recovery capability of the power source.

1 is a view for explaining a power system simulation failure training system according to an embodiment of the present invention.
Fig. 2 is a view for explaining the miniature mosaic switchboard shown in Fig. 1. Fig.
3 is a view for explaining a main CPU of the master unit shown in FIG.
4 is a flowchart illustrating the main CPU of the master unit shown in Fig.
5 is a view for explaining a main CPU of the slave unit shown in Fig.
6 is a flowchart illustrating the main CPU of the slave unit in Fig.
FIG. 7 is a flowchart illustrating a fault simulation method for a power system simulation according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

Now, a power system simulation failure training system and method according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a view for explaining a power system simulation failure training system according to an embodiment of the present invention.

Referring to FIG. 1, a power system simulation failure training system (A) includes an accident generator 100 and a miniature mosaic switchboard 200.

The accident generator 100 is connected to the reduced mosaic switchboard 200 through wired or wireless communication through a wired / wireless communication module (not shown in the figure for convenience of description) as a rigid PC for generating a simulated fault, The system is displayed on a screen through a display means such as an LCD. Various simulated fault conditions that may occur in the power system are inputted through the keypad and the input means to set various simulated fault conditions inputted. After receiving the change status signal transmitted from the reduced type mosque switchboard 200 to confirm the received change status signal and then output the modified status signal to the reduced type mosaic switchboard 200, To the power system screen so that the lecturer can monitor the simulated failure training situation in real time.

In one embodiment, the accident generator 100 can display the power system of the 154 kV model substation, which occupies the highest occupancy rate in KEPCO, on the screen by using the software installed in advance in the steel PC, and the 154 kV model After setting various simulated fault conditions that may occur in the substation, the simulated fault set in the substation can be transmitted to the reduced mosaic switchboard 200 for display.

The miniature mosaic switchboard 200 is a miniature mosaic switchboard for simulated fault display having an accident display device (not shown in the drawings for the sake of convenience of explanation). The miniature mosaic switchboard 200 is a wake- In response to the simulated fault signal transmitted from the accident generator 100, a simulated accident and an alarm corresponding to the received simulated fault signal are transmitted to the power system 100, (For example, CB, DS, EDS, button, and the like) installed on the front part of the training machine, the state of the power system equipment corresponding to the operated switch At the same time, it displays the changed state, generates a change state signal corresponding to the changed state signal, and transmits it to the accident generator 100.

In one embodiment, in order to ensure consistency with the actual site, the reduced mosaic switchboard 200 displays the power system for the 154 model substation in the form of a mosaic tile and displays the status and measurement values for the power system facility And may also indicate situations in which the input or output is not made according to the corresponding interlock conditions according to the various switches operated by the training center.

In one embodiment, the reduced mosaic switchboard 200 is equipped with accidental display logic in accordance with various interlock conditions electrically coupled to each facility of the 154 kV model substation and conditions at the time of receiving a mock fault signal, In addition, it is possible to perform accident analysis by accident display due to reception of simulated fault signal, accident spread due to erroneous operation of training center, and interlock condition analysis according to the operation of switch of training center. In this case, And the result of the additional accident can be promptly displayed in the alarm window and the power system so that the trainee can recognize it.

The power system simulation failure training system A having the above-described configuration generates a simulated fault signal in the accident generator 100 and displays a simulated accident thereon in the reduced type mosaic switchboard 200, The training can be carried out in the same environment as the actual breakdown by performing the simulation failure training on the rapid recovery measures of the training center in relation to the failure of the training center. In addition, it is possible to acquire the recovery procedure according to the actual situation and to prevent the ripple failure caused by the wrong operation of the power source (or the training center) working in the power source station, the power feeder station, the manned substation, The recovery capability can be improved.

Fig. 2 is a view for explaining the miniature mosaic switchboard shown in Fig. 1. Fig.

2, the miniature mosaic switchboard 200 includes a master unit 210, a plurality of slave units 220, a plurality of power system displays 230, an enclosure 240 ).

The master unit 210 is a part responsible for the main function of the accident display on the first panel 241. The master unit 210 is connected to the accident generator 100 through Ethernet communication and generates a mock fault signal From the accident generator 100 and controls the power system display 230 to display an accident.

In one embodiment, the master unit 210 includes a main CPU 211, a digital input module (DIM) 212, a digital output module (DOM) 213), a power unit 214 of, for example, AC 220V / DC 5V, and a communication unit 215 having an RS-485 communication port.

In one embodiment, the master unit 210 is equipped with facility interlock logic of the simulated substation power system, interprets accident information from the simulated fault signal received from the accident generator 100, Or may be displayed on the alarm window 231 of the power system display 230 so as to display an alarm for the accident information. At this time, the main CPU 211 of the master unit 210 analyzes the accident information, finds the slave unit 220 to display the accident information when it is determined as an accident, and transmits the accident information to the slave unit 220 .

In one embodiment, the master unit 210 receives all the operating signals of the training source into the DIM 212 and interprets it, and immediately displays the interpreted result. The master unit 210 displays the power system display belonging to the first panel 241 The power system display 230 for the remaining panels (i.e., the second panel 242, the third panel 243, and the fourth panel 243) is turned on or off while managing the water 230, You can also manage various operations.

In one embodiment, the master unit 210 sends status information about the power facility via the Ethernet communication to the remaining panels (i.e., the second panel 242, the third panel 243, and the fourth panel 243) To the main CPU 221 mounted on the slave unit 220 to turn on the power system display 230 (i.e., the alarm window 231, the switch and the operation button 233, the switch and the button lamp 234) Analyzes and determines the information about the operation of the switch and the operation button 233 acquired by the main CPU 221 mounted on the slave unit 220 and outputs the determined result to the slave unit 220. [ To the main CPU 221 mounted on the main CPU 221 for display.

The master unit 210 transmits the measurement information acquired from the accident generator 100 to the entire digital meter 232 installed in the miniature mosaic switchboard 200 through the communication unit 215 having the RS- To display it as analog information.

The slave unit 220 is connected to the master unit 210 through the Ethernet communication and acquires incident information (i.e., status information) from the master unit 210 and then transmits the incident information (I.e., state information) acquired in the power system display 230 (i.e., the alarm window 231, the switch, and the button lamp 234) of the display devices 241 to 244.

In one embodiment, the slave unit 220 may include a main CPU 221, a DIM 222, a DOM 223, e.g., three power units 224 of AC 220V / DC 5V have. Here, the DIM 222 has a modular capacity capable of processing 32 points of input signal, uses DC 24V as a control power source, and the power system display 230 (i.e., the switch and the operation button 233) Etc.), and provides information on the received operation signal to the main CPU 211 of the master unit 210. An LED lamp is provided on the front face of the module to turn on / off the reception state of the input signal for each point, Off. The DOM 223 has a module capacity capable of turning on and off 32 points and uses DC 24V as a control power source and receives equipment status information from the main CPU 211 of the master unit 210 The system display 230 is turned on or off (that is, the alarm window 231 or the switch and the button lamp 234), and an LED lamp is placed on the front surface of the module so that the on / off status of each point can be confirmed give.

In one embodiment, if there is operation information input by the training source to the panel 242 to 244 to which the slave unit 220 belongs, the slave unit 220 confirms the operation information through the DIM 222 and acquires the corresponding operation information, The operation information can be immediately transmitted to the main CPU 211 of the master unit 210 via the Ethernet communication.

In one embodiment, the main CPU 221 of the slave unit 220 may trip the associated circuit breaker when receiving accident information from the main CPU 211 of the master unit 210, Can be displayed on the alarm window 231 of the power system display 230.

The power system display 230 displays an accident (for example, alarm, measurement information, and the like) under the control of the master unit 210 (or the slave unit 220) Information to the master unit 210 (or the slave unit 220).

In one embodiment, the power system display 230 includes an alarm window 231, a digital meta 232, a switch and an operation button 233, a switch and a switch, A button lamp 234, a tile, and the like. The alarm window 231 displays an alarm according to the control of the main CPU 211 (or the main CPU 221) and the digital meter 232 displays the alarm of the main CPU 211 (or the main CPU 221) The switch and the operation button 233 informs the main CPU 211 (or the main CPU 221) of the operation of the training center while the switch and the button lamp 234 display the measurement information in an analog manner And can be turned on or off under the control of the main CPU 211 (or the main CPU 221).

In one embodiment, the power system display 230 is capable of exposing an accident that may occur at a 154 kV substation with an exposable simulated fault, where the control of the main CPU 211 (or main CPU 221) (T / L) fault connected to the substation and the substation or the fault on the bus line connected to the two buses (ie, the first bus and the second bus) and the fault on the substation Up to 4 transformers are installed and are responsible for transformer (M.Tr) fault, which is responsible for decompressing 154kV voltage to 22.9kV voltage but depending on the situation, (D / L) side breakdown (D / L) side breaker which divides the load for each transformer by providing a section for each transformer and installs up to 8 distribution lines in one transformer to handle the load of the transformer. To Bus Sections The first bus side is divided into 40 BUS, 41 BUS, 42 BUS, and 43 BUS by dividing by 8 by the number of buses, and the second bus side is divided by 45 BUS, 46 BUS, 47 BUS, 48 BUS. have.

First, the fault on the transmission line (T / L) side may be a short circuit, ground fault, transmission line GIS or DS failure, breaker failure of transmission line.

In the event of a short circuit or a ground fault, that is, when a short circuit or a ground fault occurs in a transmission line section, the power system display 230 is subjected to main protection (or main protection) under the control of the main CPU 211 By operating the relay for protection, it is possible to protect the facility by instantly shutting off the breaker so that the fault current does not flow to other facilities through the transmission line.

(Or the main CPU 221) in the case of a transmission line GIS or DS failure, that is, a failure due to insulation breakdown occurred in the transmission line internal equipment, and the power system display 230 is connected to the main CPU 211 It is possible to protect the equipment by shutting off both the transmission line connected to the accident bus or the breaker on the primary side of the transformer.

In the event of a B / F failure in the transmission line, ie, a circuit breaker for the transmission line fails, a short circuit, ground fault, and B / F failure occur simultaneously in the line. The electric power system display 230 operates the bus protecting relay of the bus line connected to the transmission line according to the control of the main CPU 211 (or the main CPU 221) because the breaker is not blocked by the sub- It is possible to protect the equipment by blocking all the other transmission lines connected to the bus or the transformer primary side breaker at once. At this time, the line breaker of the transmission line keeps the input state by the negative action.

Second, the bus failure has a first bus failure and a second bus failure.

In the case of a first bus failure, i.e., the insulation of the first bus is broken, the transmission line connected to the first bus and the transformer can not be powered via the first bus, , The main circuit protection relay is operated according to the control of the main CPU 211 (or the main CPU 221), so that both the transmission line connected to the first bus and the transformer primary circuit breaker can be tripped.

In the event of a second bus failure, i.e. the insulation of the second bus is broken, the transmission line and the transformer connected to the second bus can not be powered via the second bus, , The main circuit protection relay is operated under the control of the main CPU 211 (or the main CPU 221), thereby making it possible to trip both the transmission line connected to the second bus and the transformer primary side breaker.

Third, fault on the transformer (M.Tr) side can be caused by internal fault of transformer, primary GIS or DS failure of transformer, secondary GIS or DS short of transformer, secondary GIS or DS ground fault of transformer, secondary GIS or DS ground of transformer And NGR disconnection failure.

In the event of an internal fault in the transformer, that is, if a transformer internal failure (mechanical failure, electrical failure) occurs, the power system display 230 is powered by the main CPU 211 (or main CPU 221) The transformer primary and secondary circuit breakers can be tripped to prevent fault propagation to the plant.

In the case of a transformer primary GIS or DS failure, that is, a failure due to a transformer primary GIS or DS insulation breakdown, the power system display 230 is connected to the main CPU 211 (or the main CPU 221 ), It is possible to protect the equipment by shutting off both the transmission line connected to the accident bus or the breaker on the primary side of the transformer.

In the case of a secondary side GIS or DS short-circuit failure of the transformer, that is, a failure due to secondary side GIS or DS insulation breakdown of the transformer occurs, the power system display 230 is connected to the main CPU 211 221), it is possible to shut off the transformer secondary circuit breakers connected to the 23 kV BUS connected to the fault transformer.

In the case of the secondary side GIS or DS ground fault of the transformer, that is, when a failure due to the secondary side GIS or DS insulation breakdown of the transformer occurs, the power system display 230 is connected to the main CPU 211 221) to operate the 51SN relay, so that the fault can be spread on the side of the 23-kV bus connected to the fault transformer, so that the transformer 1 and the secondary circuit breaker connected to each other can be shut off altogether.

In the case of secondary GIS or DS ground fault and NGR disconnection fault of the transformer, that is, when the transformer secondary GIS or DS insulation breakdown fault and NGR disconnection fault occur at the same time, the transformer can not detect the ground fault due to the NGR disconnection, The power system display 230 operates the 59GT under the control of the main CPU 211 (or the main CPU 221) to trip the transformer primary and secondary breakers and then connect the fault transformer to the healthy bank Then the ground element can be ripped and the transformer connected to it can be tripped by the 51SN relay.

Fourth, 23kV distribution line (D / L) failure is caused by a short to ground line, a ground fault, a GIS or DS short-circuit failure by a distribution line, a GIS or DS ground fault by a distribution line, a GIS or DS ground fault by a distribution line, .

In the event of a short circuit or ground fault in the distribution line, that is, a short circuit or a ground fault occurs in the distribution line, the power system display 230 is controlled by the main CPU 211 (or the main CPU 221) By operating the overcurrent and overvoltage relay to protect the inverter, the breaker can be tripped by the corresponding distribution line.

The power system display 230 is connected to the main CPU 211 (or the main CPU 221) in the case of a GIS or DS short circuit failure by a power distribution line, that is, a failure due to GIS or DS insulation breakdown by a power distribution line. ), The failure of the transformer connected to the bus can be spread and the transformer secondary circuit breaker can be shut off altogether.

The power system display 230 is connected to the main CPU 211 (or the main CPU 221) in the case of a GIS or DS ground fault with the power distribution line, i.e., a failure due to the GIS or DS insulation breakdown as a power distribution line. The failure of the transformer connected to the bus is spread and the transformer 1 and the secondary circuit breaker can be shut off altogether.

In case of GIS or DS ground fault and NGR disconnection fault with distribution line, GIS or DS insulation breakdown fault and NGR disconnection fault occur at the same time as the distribution line. Since the transformer can not detect ground fault due to NGR disconnection, The display 230 operates 59GT under the control of the main CPU 211 (or the main CPU 221) so that when the transformer primary and secondary breakers are tripped and connected to the sound bank, The detected and connected transformer can trip all the 1st and 2nd circuit breakers by the 51SN relay.

Fifth, the 23kV bus side fault has a bus short-circuit fault on the first bus, a bus ground fault on the first bus, a bus short-circuit fault on the second bus, and a bus ground fault on the second bus.

The power system display 230 is connected to the main CPU 211 (or the main CPU 211 (or the main CPU 211)), that is, 40 BUS, 41 BUS, 42 BUS, and 43 BUS in the case of a short- 221), the secondary side breaker of the transformer connected to the first bus side can be tripped by the 51S relay.

The power system bus 230 is connected to the main CPU 211 (or the main CPU 211 (or the main CPU 211) 221), the first and second circuit breakers of the transformer connected to the first bus side can be tripped by the 51SN relay.

The power system display 230 is connected to the main CPU 211 (or the main CPU 211 (or the main CPU 211)), that is, 45BUS, 46BUS, 47BUS, and 48BUS in the case of a short- 221), the secondary side circuit breaker of the transformer connected to the second bus side can be tripped by the 51S relay.

In the case of a bus ground fault on the second bus side, 45BUS, 46BUS, 47BUS, and 48BUS correspond to the bus and insulation of the bus is broken. The power system display 230 is connected to the main CPU 211 ), The first and second circuit breakers of the transformer connected to the second bus side can be tripped by the 51SN relay.

The enclosure 240 is formed with four panels (Panels) 241 to 244 coupled thereto.

The miniature mosaic switchboard 200 having the above-described configuration is equipped with an interlock condition and an accident display logic of a power site (for example, a 154 kV model substation, a 345 kV model substation, etc.) And displays a simulated accident corresponding to the received simulated accident signal on various switches, button lamps 234, an alarm window 231, etc. When an alarm is generated, the alarm is generated to generate an alarm sound, When the training source operates the switch and operation button 233, the signal corresponding to the operation is recognized through the DIM 212 and the result of the operation instruction (for example, the ON / (For example, on / off of the button lamp, on / off of the button lamp, etc.) through the DOM 213 and displays the analog measured value received through the accident generator 100 to a wired communication method Each of the digital meters 232, Transmitted can have the measured value display.

3 is a view for explaining a main CPU of the master unit shown in FIG.

Referring to FIG. 3, the main CPU 211 is hardware that plays a pivotal function of a reduced type mosaic for failure display. The main CPU 211 loads operating software into a flash memory, The state of the electric power facility is connected to the main CPU 221 of the slave unit 220 through the Ethernet communication, and the state of the electric power facility is stored in the NVRAM, To the main CPU 221 of the slave unit 220. [0050]

In one embodiment, the main CPU 211 includes logic for power facility interlock conditions, an algorithm for interpreting and determining simulated accident information received via the accident generator 100, (I.e., an alarm window 231, a switch and a button lamp 234, etc.).

In one embodiment, the main CPU 211 receives the operation signal of the training source through the main CPU 221 of the slave unit 220 and can verify it through the interlock logic, And transmits the measurement information to the main CPU 221 of the unit 220. The measurement information on the power equipment can also be provided from the accident generator 100 through the communication unit 215 and displayed as analog information.

In one embodiment, the main CPU 211 performs simulated accident information interpretation and judgment through power facility interlock logic, for example, simulating accident information interpretation and judgment by interlock logic mounted on a 154 kV transmission line, Determination of accident type and simulation failure such as 154kV bus line, 154kV bus tie, transformer, 23kV bus line, 23kV power line and other faults are analyzed. (T / L) circuit breaker (T / L Circuit Breaker), T / L Distributed Switch (DS), Transmission Line LDS (T / L Line Distributed Switch) (For example, an alarm window 231, a switch and a button lamp 234, etc.) in a reduced mosaic failure display step (e.g., an interlocking condition logic step according to ES / T / L Earth Switch) Step), training Recovery operation real time monitoring step (e. G., Switches and operating buttons (233) receiving a signal, etc.), training ends may include a command reception and processing stage.

4 is a flowchart illustrating the main CPU of the master unit shown in Fig.

Referring to FIG. 4, the main CPU 211 of the master unit 210 first performs system initialization of the master unit 210 when power is supplied through the power supply unit (S401).

The main CPU 211 of the master unit 210 checks whether there is a training start command transmitted from the accident generator 100 through the communication unit 215 in step S402, (Step S403). When a training start command is received in step S402, a mock fault signal for driving the simulated fault display is started and a simulated fault signal transmitted from the accident generator 100 is received in step S403.

The main CPU 211 of the master unit 210 analyzes the accident information from the simulated fault signal received in step S403. At this time, the simulated fault corresponding to the determined type of accident is analyzed (S404).

The main CPU 211 of the master unit 210 processes the interlock conditions corresponding to the simulation failure analyzed in the above-described step S404, that is, it processes the interlock condition logic according to the breaker, the disconnector, the ground position, (S405).

After the interlock condition is processed in the above-described step S405, the main CPU 211 of the master unit 210 generates fault display information corresponding to the simulated fault analyzed in the above-described step S404 (S406) It is confirmed whether the unit to display an alarm for the failure display information generated in the step S406 is the self unit or the slave unit 220 (S407).

When the master unit 210 has to display an alarm for the failure indication information in the above-described step S407, the main CPU 211 of the master unit 210 sets the relevant breaker in accordance with the simulation failure analyzed in the above-described step S404 The failure output signal for tripping or displaying an alarm for the failure display information is transmitted to the power system display 230 (that is, the alarm window 231, the switch and the button lamp 234, etc.) (S408).

After the failure output signal is transmitted and displayed in step S408, the main CPU 211 of the master unit 210 monitors the recovery operation of the training source through the master panel 241 in real time. At this time, Operation is input (S409).

The main CPU 211 of the master unit 210 verifies the recovery operation input in the above-described step S409 through the interlock condition logic processed in the above-described step S405 (S410), and the result verified in the corresponding step S410 An accident expression is displayed through the electric power system display 230 (S411).

If the slave unit 220 has to display an alarm for the failure indication information in the above-described step S407, the main CPU 211 of the master unit 210 detects the failure of the slave unit 220, (S412), and transmits failure indication information to the slave unit 220 searched in the corresponding S412 (S413).

After the failure output signal is transmitted in the above-described step S413, the main CPU 211 of the master unit 210 transmits the failure output signal through the slave panels 242 to 244 corresponding to the slave unit 220 found in the above- The recovery operation of the training center is received at this time (S414).

The main CPU 211 of the master unit 210 verifies the recovery operation received in the above-described step S414 through the interlock condition logic processed in the above-described step S405 (S415), and the result verified in the corresponding step S415 The fault display is transferred to the main CPU 221 of the slave unit 220 (S416).

The main CPU 211 of the master unit 210 reads out the accident expression from the accident generator 100 via the communication unit 215 after displaying the accident expression in the above described step S411 or transmitting the accident expression in the above- (S417). If the instruction to end the training is received in the step S417, the miniature mosaic driving for simulated fault display is terminated.

5 is a view for explaining a main CPU of the slave unit shown in Fig.

5, the main CPU 221 loads operating software into the flash memory, mounts the system console in the NVRAM, and communicates with the main CPU 211 of the master unit 210 through the Ethernet communication to the power equipment (E.g., the alarm window 231, the switch and the button lamp 234, etc.) through the DOM 223, and also receives the operation signal of the training source through the DOM 223 DIM 222 to the main CPU 211 of the master unit 210.

In one embodiment, the main CPU 221 receives an accident expression transmitted from the main CPU 211 of the master unit 210 after transmitting the operation signal of the training source, 230) (that is, the alarm window 231, the switch and the button lamp 234, and the like).

6 is a flowchart illustrating the main CPU of the slave unit in Fig.

Referring to FIG. 6, the main CPU 221 of the slave unit 220 first performs system initialization of the slave unit 220 when power is supplied through the power supply unit (S601).

After performing the system initialization in step S601, the main CPU 221 of the slave unit 220 starts the operation program loaded in the flash memory to start the miniature mosaic-display-type mosaic driving (S602) It is checked whether there is an initial value transmitted from the main CPU 211 of the master unit 210 via Ethernet (S603).

When the initial value is received in step S603, the main CPU 221 of the slave unit 220 processes the initial value received in step S603. At this time, the initial value received in step S603 The alarm window 231, the switch and the button lamp 234 (i.e., the alarm window 231, the switch and the button lamp 234), and the initial output signal for displaying the information on the initial value received in the above- ) (Step S604).

The main CPU 221 of the slave unit 220 displays an alarm for the failure display information transmitted from the main CPU 211 of the master unit 210 via Ethernet after displaying the initial value in step S604 described above It is checked whether there is a failure output signal to be output (S605).

If the failure output signal is not received in step S605, the process returns to step S603. On the other hand, if the failure output signal is received in step S605, the main CPU 221 of the slave unit 220 The faulty output signal is transmitted to the power system display 230 (that is, the alarm window 231, the switch and the button lamp 234) in accordance with the fault output signal received in step S605, And an alarm for the display information is displayed (S606).

When the initial value is not received in step S603, the main CPU 221 of the slave unit 220 monitors the recovery operation of the training source through the slave panels 242 to 244 in real time. At this time, It is confirmed whether a recovery operation is input (S607).

If the recovery operation of the training source is not input in step S607, the process returns to step S603. On the other hand, if the recovery operation of the training source is input in step S607, the main CPU 221 of the slave unit 220, The input information for the recovery operation of the training source inputted in the above-described step S607 is transmitted to the main CPU 211 of the master unit 210 via Ethernet (S608).

The main CPU 221 of the slave unit 220 displays the failure display information in step S606 or transmits the recovery operation input information in step S608 to the main CPU of the master unit 210 211 in step S609. If the instruction to end the training is received in step S609, the miniature mosaic driving for simulated fault display is terminated.

FIG. 7 is a flowchart illustrating a fault simulation method for a power system simulation according to an embodiment of the present invention.

Referring to FIG. 7, the accident generator 100, which is a steel PC for generating a simulation failure, is connected to the miniature mosaic switchboard 200 through wired or wireless communication through a wired / wireless communication module, And displays it on the screen through the display means (S701).

If the lecturer inputs various simulated fault conditions that may occur in the power system through the keypad and the input means during the display of the power system in the above-described step S701, the accident generator 100 generates various simulated fault conditions (Step S702), and generates a simulated fault signal corresponding to the set various simulated fault conditions and transmits the generated simulated fault signal to the reduced mosaic switchboard 200 (step S703).

In the miniature mosaic switchboard 200, which is a miniature mosaic switchboard for simulated fault display with an accident display device, it is connected to the accident generator 100 by wired or wireless communication through a wired / wireless communication module and transmitted from the accident generator 100 (S704). The simulated fault signal corresponding to the simulated fault signal received in the step S704 is displayed on the power system (S705).

(For example, CB, DS, EDS, buttons, and the like) installed on the front part of the training ma- chine during the display of the simulated accident and the warning in step S705, (I.e., operation information) of the operated switch or button (S706), changes the state of the power system facility corresponding thereto according to the operation information confirmed in the step S706, (Step S707). In the reduced mosaic switchboard 200, a change state signal corresponding to the state change of the power system equipment is generated in step S707 and transmitted to the accident generator 100 (S708).

The incident generator 100 receives a change state signal transmitted from the reduced mosaic distribution board 200 in step S709 and confirms the received change state signal and immediately reflects the changed state on the power system screen, Thereby allowing monitoring of the training situation in real time (S710).

The embodiments of the present invention are not limited to the above-described apparatuses and / or methods, but may be implemented by a program for realizing functions corresponding to the configuration of the embodiment of the present invention, a recording medium on which the program is recorded, And such an embodiment can be easily implemented by those skilled in the art from the description of the embodiments described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

A: Power system simulation failure training system
100: Accident generator
200: Reduction Mosaic Switchboard
210: Master unit
211, 221: Main CPU
212, 222: DIM
213, 223: DOM
214 and 224:
215:
220: Slave unit
230: Power system display
231: Alarm window
232: Digital Meta
233: Switch and operation button
234: Switch and button lamp
240: enclosure
241 to 244: Panel

Claims (6)

The power system is displayed on the screen, input and set various simulated fault conditions through the input means, generate a simulated fault signal corresponding to the set simulated fault conditions, receive the change status signal, confirm the change details, An accident generator to reflect on the screen; And
Receives a simulated fault signal generated by the accident generator, displays simulation simulations and alarms corresponding to the simulated accident simulator and an alarm on the power system, receives the switch or button operation of the training center, changes the state of the corresponding power system facility and displays the changed state And a reduced mosaic switchboard for generating a change status signal and transmitting the change status signal to the accident generator. [2] The apparatus of claim 1, wherein the reduced-
An enclosure formed by combining a plurality of panels;
A main panel is provided with a main CPU, a DIM, a DOM, a power unit, and a communication unit, and is connected to the accident generator through Ethernet communication. A master unit that interprets the operation signal of the training center and displays the interpreted result;
Wherein each of the panels includes a main CPU, a DIM, a DOM, and a power unit, wherein the main CPU, the DIM, the DOM, and the power unit are connected to the master unit via Ethernet communication, A plurality of slave units receiving operation signals of the training source and providing the operation signals to the master unit; And
And an alarm window, a digital meter, a switch, an operation button, a switch and a button lamp are provided on the front of the enclosure to display accident information and analysis results according to the control of the master unit or the slave unit, To the master unit or to the slave unit. ≪ RTI ID = 0.0 > [0002] < / RTI > 3. The apparatus of claim 2, wherein the master unit comprises:
Wherein the slave unit interprets the accident information, searches the slave unit to display the interpreted accident information, and transmits the accident information interpreted as the slave unit searched. Generating a simulated fault signal corresponding to a set of simulated fault conditions by inputting and setting various simulated fault conditions through the input means, displaying the power system on the screen,
The miniature mosaic switchboard receives the simulated fault signal and displays simulated accidents and alarms corresponding to the simulated fault signal on the power system, receives the switch or button operation of the training center, changes the state of the corresponding power system equipment and displays the changed state Generating and transmitting a change status signal; And
And receiving the change status signal and confirming the change history and reflecting the change status on the power system screen. 5. The method of claim 4, wherein generating and transmitting the change status signal comprises:
Receiving a training start command from the accident generator after performing a system initialization when the master unit of the miniature mosaic switchboard is supplied with power;
Determining an accident type from the simulated fault signal when the master unit receives the simulated fault signal and analyzing a simulated fault corresponding to the determined type of accident;
Generating a fault display information corresponding to the simulated fault after the master unit processes the interlock condition logic corresponding to the simulated fault analyzed;
Confirming whether the master unit is a self unit or a slave unit to display an alarm for the failure display information;
The master unit may trip the associated circuit breaker in response to the simulated fault analyzed by the master unit or to output a failure output signal to the power system display of the reduced mosaic switchboard To be displayed; And
The master unit monitors the recovery operation of the training center in real time, receives the recovery operation of the training center, verifies the recovery operation through the interlock condition logic, and displays the accident expression on the power system display according to the verification result Wherein the power system has a plurality of power supply terminals. 6. The method of claim 5, wherein generating and transmitting the change status signal comprises:
The master unit searches for a slave unit to display an alarm for the malfunction display information and transmits malfunction indication information to the slave unit searched if the unit for displaying an alarm for the malfunction indication information is a slave unit ; And
The master unit monitors the recovery operation of the training source in real time through the slave unit searched, receives the recovery operation of the training source, verifies the same via the interlock condition logic, and outputs the accident expression to the searched slave unit Further comprising the step of transmitting the power system simulation failure message.

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