KR102218268B1 - Substation Automation Operating Device Equipped with Automatic Generation of Failure Judgment and Failure Recovery Scenarios - Google Patents

Abstract

A device for operating a substation automation system with a function of automatically generating failure judgment and failure recovery scenarios automatically generates a recovery procedure. According to one embodiment of the present invention, the device comprises: a substation automation system (SA) server device; an intelligent electronic device (IED); and a remote terminal unit (RTU).

Description

Substation Automation Operating Device Equipped with Automatic Generation of Failure Judgment and Failure Recovery Scenarios with automatic generation of failure judgment and failure recovery scenarios

The present invention relates to a substation automation system (SA, Substation Automation) operating device equipped with a function to automatically generate a failure determination and failure recovery scenario, and recognizes the topology of a substation before a failure occurs, and through a failure type determination algorithm when a failure event occurs. The present invention relates to an operating device that automatically determines the point of failure and the type of failure compared to the previous failure, and automatically generates a failure recovery scenario through a failure recovery procedure generation algorithm.

More specifically, the substation automation system operating device equipped with the function of automatically generating failure determination and failure recovery scenarios of the present invention is mounted on the substation automation system operating device that monitors and controls KEPCO digital substations, and guides the generation of failure determination and recovery procedures. In the event of a failure in a 154kV substation, a failure alarm and load fluctuation values are received from an IEC61850-based intelligent electronic device (IED) to determine the failure by an internal algorithm and the optimal load transfer method in an instant. It is a system that automatically generates a recovery procedure and presents an optimal recovery plan to the operator so that the substation operator can refer to it and perform a failure recovery operation.It is a virtual system that recognizes the substation topology in the existing substation automation system operating system. Layer (Virtual Layer) part, a fault determination part that determines the fault point and fault type through the fault type determination algorithm by receiving fault data when a fault occurs, and the fault section separation and load transfer through the fault recovery procedure generation algorithm. It relates to a substation automation system (SA) operating device comprising a recovery procedure generation unit in charge of recovery processing.

If a failure occurs due to various factors during operation of a 154kV (or 345kV) substation, the substation worker must quickly recognize and judge the failure and then perform a repair operation in accordance with the KEPCO Standard Recovery Procedure (SOP). This is called failure recovery. It is a subject that is strictly managed to the extent that it is required to analyze and recover a failure within a short time after a failure occurs, and to submit a detailed report on the contents of the failure.

At present, if a 154kV (or 345kV) substation breakdown occurs, the response procedure is “A breakdown → worker's breakdown recognition → breakdown judgment (decision based on personal experience/capacity) → breakdown recovery (recovery by personal experience/capacity) → report by senior (department) Failure recovery proceeds in the order of ”.

Workers are aware of the KEPCO Standard Recovery Procedure (SOP), and in the event of a real breakdown, they judge and perform failure determination and recovery operations based on the contents of the standard recovery procedure.There are no related systems such as providing separate automated failure determination guides and recovery operation procedures. It is being restored by personal experience and ability.

In the event of a breakdown in a substation, the ripple effect due to power outages is profound, so the workers must be familiar with KEPCO's standard recovery procedures to ensure the stability of the power supply through quick and accurate substation breakdown recovery operations. Since only describes limited failures under the standard substation topology and equipment operating conditions, if failure occurs under various topologies and equipment operating conditions encountered in the actual substation operation process, even experienced workers may be embarrassed and prompt. Difficulties may arise in the correct recovery operation.

Therefore, as the current recovery operation is performed based on the individual's experience and ability, secondary power outage accidents and breakdowns frequently occur due to misoperation due to personal errors due to brief judgment errors, and human errors and breakdowns at substations. The cost of social and economic losses in the event of a power outage caused by an outbreak is significant and is increasing day by day.

Like the digital substation operating system, the monitoring and control system of power facilities is being advanced and automated, but there is no substation automation system (SA) operating system equipped with a failure determination and recovery procedure scenario generation system, so it can accurately and quickly deal with failures. There is a need for an automated system that can be used.

Republic of Korea Patent Publication 10-1621653

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The present invention was created to solve the above problems in consideration of the problems of the prior art, and performs all functions of the existing substation automation system (SA, Substation Automation) operating device, and additionally includes a failure determination and recovery procedure generation guide function. As a device, it provides a substation automation system (SA) operating device that infers and displays the failure determination result when a failure occurs, creates a failure recovery procedure, and displays it on a separate screen.

More specifically, the substation automation system operating device equipped with the function of automatically generating failure determination and failure recovery scenarios of the present invention is mounted on the substation automation system operating device that monitors and controls KEPCO digital substations, and guides the generation of failure determination and recovery procedures. When a failure occurs in a 154kV substation, a failure alarm and load fluctuation values are received from an IEC61850-based intelligent electronic device (IED) to determine the failure by an internal algorithm, and the optimal load transfer method in an instant. It is a system that automatically generates a recovery procedure and presents an optimal recovery plan to the operator so that the substation operator can refer to it and perform a failure recovery operation.It is a virtual system that recognizes the substation topology in the existing substation automation system operating system. Layer (Virtual Layer) part, a fault determination part that receives fault data when a fault occurs and determines the fault point and fault type through a fault type determination algorithm, and faults such as separation of fault sections and load transfer through fault recovery procedure generation algorithms. Its purpose is to provide a substation automation system operating device including a recovery procedure generation unit in charge of recovery processing.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The present invention is to achieve the above object,

A substation automation system operating device equipped with a function for automatically generating failure determination and failure recovery scenarios according to an embodiment of the present invention is a substation automation system operating device that monitors, controls, and manages digital substations, on-site information processing device and information monitoring Substation automation system (SA) server device that includes a diagnostic device and provides a communication service; Intelligent electronic device (IED) that performs protection relay, control, monitoring, measurement, and interlock for field power facilities and provides communication services; And a remote station device (RTU) installed in a legacy type substation to acquire operation information from power facilities and perform remote monitoring, control, and measurement functions of power facilities; including, but the substation automation system (SA) server device , A virtual layer unit that performs a substation initialization step for determining a failure and generating a recovery procedure by recognizing the current operation state of the substation power facility and the topology of the substation before failure including measurement data; A failure determination unit that receives failure data from an intelligent electronic device when a substation failure occurs and determines a failure point and a failure type; And a recovery procedure generation unit in charge of recovery processing for faults such as separation of fault sections and load transfer.

According to one embodiment, the substation topology is 154kV T/L, 154kV BUS, 154kV BUS TIE, 154kV BUS SECTION, 154kV Sh.C, 154/23kV M.Tr, 23kV D/L, 23kV BUS, 23kV BUS TIE, 23kV BUS SECTION, 23kV Sh.C is included, and the substation operation database is composed of the above topology as much as the actual power equipment for each substation, and the substation operation database is mapped to a virtual layer during internal processing to recognize the topology and make virtual It further includes converting and displaying the result of the generation of the failure determination and recovery procedure after the operation processing with the layer global database, converting it back to the substation operation database.

According to an embodiment, the failure determination unit includes a failure type determination algorithm, and the failure type determination algorithm calculates the failure data obtained from the substation automation system operating device by the failure determination unit to determine the presence or absence of a failure. The unit does not operate, and in case of a failure, the type of failure and the point of the failure are determined and displayed, and the failure judgment is based on various alarms and changes in the operation status of power facilities, and measurement data fluctuations. An important priority is assigned to the alarm so that it is directly connected to the corresponding failure when a key element is in operation, so that it is judged even when a subordinate alarm is omitted.If a failure judgment is impossible due to the omission of a key element alarm, it further includes querying past statistical data to determine the failure. do.

According to an embodiment, the failure type determination algorithm infers and displays a failure similar to the corresponding failure using failure data that occurred when a failure not found in the past statistical data occurs, and when inferring a similar failure, the most similar failure among several failure candidates is ranked higher. The display further includes displaying faults corresponding to the next faults in sequence.

According to an embodiment, the recovery procedure generation unit includes a failure recovery procedure generation algorithm, and the failure recovery procedure generation algorithm recognizes the failure determination information inferred by the failure determination unit and the substation topology to separate the failure section, and when the failure section cannot be separated. The sound load is transferred to separate the fault section, and when the load is transferred, all available facilities in the substation are calculated and transferred within the maximum allowable power range. When the maximum range is exceeded, the D/L breaker is opened assuming the distribution center load is switched. It further includes performing load transfer when it reaches within the allowable range of load transfer after reducing.

Details of other embodiments are included in the detailed description and drawings.

The following effects can be obtained by the substation automation system operating apparatus equipped with the automatic generation function of failure determination and failure recovery scenario of the present invention.

First, it performs all functions of the existing substation automation system (SA) operating device, additionally recognizes the substation topology, receives failure data when a failure occurs, determines the point of failure and the type of failure, and breaks down such as separation of failure sections and load transfer. It can automatically display the failure judgment, such as the recovery treatment plan, and automatically create a recovery procedure according to the type of failure, thereby solving problems such as human accidents, recovery mistakes, and time delays in case of substation failure, thereby reducing the cost of social and economic losses. Significant savings can be made.

Second, it is possible to create a recovery procedure and provide it to the operator by searching adjacent devices one by one so that the optimal recovery can be achieved within the allowable load factor range during pressurization, keeping in mind the load factor that the facility can bear during recovery. The recovery procedure does not violate the conditions of the electrical interlock between facilities present in the 154kV substation.

Third, the Virtual Layer is composed of the maximum number of topology for each power facility that can be configured as a 154kV substation, so that all types of topology can be processed.

Fourth, by linking real-time operation data (operation status and measurement values) of power facilities to the mapped virtual layer, it is possible to recognize various substation operation conditions such as single bus, multiple bus, ceasefire, double DS operation, and bus bar. have.

Fifth, failure determination is based on various alarms that occur in the event of a failure, changes in the operation status of power facilities, and changes in measurement data, but priority is given to various alarms that occur in the event of a failure, and is directly linked to the corresponding failure when operating key elements. It is judged even when an alarm is missing, and if it is impossible to determine a failure due to the omission of a key element alarm, the past statistics are inquired to determine the failure.

Sixth, in addition to the existing failure judgment rule, in addition to the existing failure judgment rule, in addition to the existing failure case data, statistical data can be used to determine failure due to the failure of failure data so that failure can be determined even when some failure data such as power facility malfunction and communication abnormality in case of failure. It can solve the impossible situation.

Seventh, when a failure that is not even in the past statistical data occurs, the failure data similar to the failure can be inferred and displayed. When inferring a similar failure, the most similar failure among several failure candidates is displayed in the upper rank, and in turn corresponds to the next failure. Failure can be indicated.

Eighth, the fault determination information deduced from the fault determination unit and the substation topology are recognized, the fault section is separated, and when the fault section cannot be separated, the healthy load is transferred and separated from the fault section. In the case of load transfer, all available facilities in the substation are calculated. Transfers within the maximum allowable power range. If the maximum range is exceeded, the D/L circuit breaker is opened to reduce the load, and load transfer is performed when the load reaches the allowable range.

1 is an overall configuration diagram of a substation automation system according to an embodiment of the present invention.
2 is a schematic configuration diagram of a substation automation system operating apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a failure determination and recovery procedure generation according to an embodiment of the present invention.
4 is a block diagram of a substation according to an embodiment of the present invention.
5 is a configuration diagram of a 23kV bus BUS SECTION according to an embodiment of the present invention.
6 is a T/L line failure type determination algorithm according to an embodiment of the present invention.
7 is an M.Tr CB B/F, M.Tr 87, 96Ry failure type determination algorithm according to an embodiment of the present invention.
8 is an M.Tr 51SN, D/L OCGR failure type determination algorithm according to an embodiment of the present invention.
9 is an algorithm for generating a fault recovery procedure on a transmission line (T/L) side according to an embodiment of the present invention.
10 is an algorithm for generating a fault recovery procedure on a transformer (M.Tr) side according to an embodiment of the present invention.
11 is a distribution line (D/L) side failure recovery procedure generation algorithm according to an embodiment of the present invention.
12 is an overall configuration diagram of a control and communication record analysis apparatus according to a further embodiment of the present invention.
13 is an internal configuration diagram of a record analysis apparatus of a control and communication record analysis apparatus according to a further embodiment of the present invention.
14 is a detailed diagram showing the connection between the recording analysis device and the control module and field equipment of the control and communication record analysis apparatus according to a further embodiment of the present invention.
15 is a diagram showing a configuration of a communication gender of a control and communication record analysis apparatus according to a further embodiment of the present invention.
16 is a diagram showing a state in which a control power transfer terminal is configured in a recording analysis device of a control and communication record analysis apparatus according to a further embodiment of the present invention.
17 is a flowchart illustrating a mobile connection processing of a control and communication record analysis apparatus according to a further embodiment of the present invention.
18 is a flowchart of a control signal processing of a control and communication record analysis apparatus according to a further embodiment of the present invention.
19 is a flow chart of communication signal processing of a control and communication record analysis apparatus according to a further embodiment of the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Prior to the description of the present invention, the following specific structural or functional descriptions are exemplified only for the purpose of describing embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention are modified in various forms to be implemented. It may be, and the scope of the present invention should not be construed as being limited to the examples described in detail below.

In addition, since embodiments according to the concept of the present invention can be modified in various ways and have various forms, specific embodiments are illustrated in the drawings and will be described in detail in the present specification.

However, this is not intended to limit the embodiments according to the concept of the present invention to a specific form of disclosure, and it should be understood to include modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

This embodiment is provided to more completely explain the present invention to those with average knowledge in the art. Accordingly, the shape of the element in the drawings may be exaggerated to emphasize a clearer description.

It should be noted that in each drawing, the same member may be indicated by the same reference numeral. Detailed descriptions of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

1 is an overall configuration diagram of a substation automation system according to an embodiment of the present invention, Figure 2 is a schematic configuration diagram of a substation automation system operating apparatus according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention It is a flow chart of generating a failure determination and recovery procedure according to an embodiment, FIG. 4 is a configuration diagram of a substation according to an embodiment of the present invention, and FIG. 5 is a configuration diagram of a 23kV bus BUS SECTION according to an embodiment of the present invention. 6 is a T/L line failure type determination algorithm according to an embodiment of the present invention, and FIG. 7 is an M.Tr CB B/F, M.Tr 87, 96Ry failure type determination algorithm according to an embodiment of the present invention. 8 is an M.Tr 51SN, D/L OCGR failure type determination algorithm according to an embodiment of the present invention, and FIG. 9 is a transmission line (T/L) side failure recovery procedure generation according to an embodiment of the present invention. An algorithm, and FIG. 10 is an algorithm for generating a failure recovery procedure on a transformer (M.Tr) side according to an embodiment of the present invention, and FIG. 11 is a failure recovery procedure on a distribution line (D/L) side according to an embodiment of the present invention. It is a generation algorithm.

12 is an overall configuration diagram of a control and communication record analysis apparatus according to a further embodiment of the present invention, and FIG. 13 is a diagram showing an internal configuration of a record analysis apparatus of a control and communication record analysis apparatus according to a further embodiment of the present invention. 14 is a detailed view showing the connection between the record analysis device of the control and communication record analysis apparatus according to a further embodiment of the present invention, the control module and field facilities, and FIG. 15 is a control and communication record analysis according to a further embodiment of the present invention. FIG. 16 is a diagram showing the configuration of the communication gender of the device, and FIG. 16 is a view showing a state in which a control power transfer terminal is configured in a record analysis device of a control and communication record analysis apparatus according to a further embodiment of the present invention. Fig. 18 is a flow chart for processing a control signal of a control and communication record analysis apparatus according to a further embodiment of the present invention, and Fig. 19 is a further embodiment of the present invention. It is a flow chart of communication signal processing of the control and communication record analysis device according to the example.

Here, T/L is Transmission Line, CB is Circuit Breaker, B/F is Breaker Filure, OCGR is Over Current Ground Relay, D/L is Distribution Line ( Distribution line), M.Tr means Master Transformer (main transformer).

The substation automation system operating device 10 equipped with a function for automatically generating failure determination and failure recovery scenarios according to a preferred embodiment of the present invention includes a substation automation system (SA) server device 100, an intelligent electronic device (IED) 200 , May include a remote station (RTU) (300).

In addition, the substation automation system (SA) server device 100 may be configured to include a virtual layer unit 110, a failure determination unit 120, and a recovery procedure generation unit 130.

Substation automation system (SA) server device 100, intelligent electronic device (IED) 200, remote station device (RTU) 300 may be devices constituting the existing substation automation system (SA) operating device, As a feature of the present invention, a virtual layer unit 110, a failure determination unit 120, and a recovery procedure generation unit 130 may be configured in a form additionally mounted on an existing substation automation system (SA) operating device. have.

First, an overview of the substation automation system (SA) operating device 10 and the devices constituting the operating device will be briefly described as follows.

First, the substation automation system (SA) server device 100 is a server capable of providing communication services (MMS, GOOSE) defined in the IEC61850-8-2 standard, and as an embodiment of the present invention, an intelligent electronic device (IED) ( 200), the substation automation system (SA) field information processing device 140, the substation automation system (SA) information monitoring and diagnosis device 150, and digital devices for various auxiliary facilities.

However, the substation automation system (SA) information monitoring and diagnosis device 150 may be included in the substation automation system (SA) server device 100 as a functional meaning in terms of the IEC61850 communication service function.

The Intelligent Electronic Device (IED) 200 is an intelligent electronic device 200 that can provide communication services defined in the IEC61850 standard, and performs functions such as protection relay, control, monitoring, measurement, and interlock. I can.

The Remote Terminal Unit (RTU) 300 is installed in the existing legacy type substation, and the operation information acquired from the legacy power facility is transferred to EMS (Energy Management) through DNP (Distributed Network Protocol) communication method. System), SCADA (Supervisory Control and Data Acquisition), and DAS (Distribution Automatic System), and can perform remote monitoring, control, and measurement functions of legacy power facilities.

The substation automation system (SA) operating device 10 is an operating system that is installed in a 154kV (or 345kV) substation to comprehensively manage monitoring and control of various power facilities, and the above-described intelligent electronic device 200 and remote station device 300 ), the substation automation system (SA) may be configured to include a server device (100).

The substation automation system (SA) operating device 10 is a device that provides a user interface for the substation automation system (SA) power equipment, and displays information on all power facilities of the substation on the screen and can handle user commands. I can.

In addition, the substation automation system (SA) operating device 10 calculates various operation information of field devices transmitted from the IEC61850-based substation automation system (SA) server device 100 and the remote station device (RTU) 300, It performs database-related processing, informs the user of the analysis/diagnosis result of the acquired data in an audible and visible manner, and transmits the user's control command.

Substation Automatic Local Information Processing Device (SA-LID; Substation Automatic Local Information Processing Device) 140 is a substation automation system (SA) input-output device that transmits electrical signals from legacy power facilities. It is a device for processing in the IEC61850 substation automation system (SA) method by using the system. It acquires and processes operation information of legacy power facilities, controls power facilities, and interlocks using internal logic. And the like.

In other words, it transmits and receives electrical signals such as monitoring, control, measurement, and interlock of legacy power facilities as digital information converted from the substation automation system (SA) input/output device, calculates internal logic, and is defined in the IEC61850 standard. It is processed as substation automation system (SA) information, and can be linked with the substation automation system (SA) mixed operating system and the substation automation system (SA) server device 100 and the IEC61850 SA method.

Substation Automation System (SA) Information Monitoring & Diagnosis Device 150 (SA-IMD; SA Information Monitoring & Diagnosis Device) is the substation automation system (SA) operation information (station level device and bay level) for power facilities and auxiliary facilities in the substation. It acquires, stores, processes and diagnoses communication data between devices and communication data between individual bay-level devices in real time, and transfers alarm and substation automation system (SA) information to the upper operating device of the substation automation system (SA). It is a transmitting device.

As an embodiment of the present invention, the substation automation system (SA) operating device 10 is a Workstaion-class PC, and the OS is Windows Server 2012 r2 or higher, CPU 3.0GHz or higher, Memory 8GB or higher, HDD 1TB or higher, and DBMS is MS SQL 2012 or higher. It is desirable to be configured with specifications.

In addition, the software functions of the substation automation system (SA) operating system (10) include (1) facility monitoring function for all facilities in the substation, (2) measurement monitoring function for all facilities in the substation, and (3) all facilities in the substation. Facility control function, (4) Real-time display of disconnection system, (5) Display and processing function of various alarms (events), (6) Display function of communication status of various devices, (7) Record and display of trend (real time, history) Functions, (8) Various reports (daily, monthly, quarterly, annual) generation and output functions, (9) various database editing functions (points, pages, graphics, etc.), (10) access authority functions, (11) standard time It may include a synchronization device (SNTP server) interlocking function, (12) automatic display of failure judgment, and (13) automatic generation of recovery procedures according to failure judgment types.

The substation automation system operating device 10 equipped with the function of automatically generating failure determination and failure recovery scenarios of the present invention is mounted on the substation automation system (SA) operating device 10 for monitoring, controlling and managing KEPCO digital substations to determine failure and Regarding a device that provides a guide for creating a recovery procedure, when a failure occurs in a 154kV substation, it receives a failure alarm and load fluctuation value from the IEC61850-based intelligent electronic device (IED) 200, determines the failure by an internal algorithm, and is optimal in an instant. It is a system that automatically generates a recovery procedure by deriving a load transfer plan of the substation and presents the optimal recovery plan to the operator to support the substation operator to perform a failure recovery operation by referring to it, and the existing substation automation system (SA) operating system In (10), a virtual layer unit that recognizes the topology of the substation, a failure determination unit 120 that determines the point of failure and type of failure by receiving failure data when a failure occurs, and recovery of failures such as separation of failure sections and load transfer. Including that the recovery procedure generation unit 130 in charge of processing is added and configured.

As a feature of the present invention, the virtual layer unit 110 may function to analyze a substation topology.

The virtual layer unit 110 may perform a system initialization step for determining a failure and generating a recovery procedure by recognizing a topology before failure, such as a current operating state of a substation power facility, and measurement data.

The topology components of the substation recognized by the Virtual Layer unit 110 are ① 154kV T/L, ② 154kV BUS, ③ 154kV BUS TIE, ④ 154kV BUS SECTION, ⑤ 154kV Sh.C, ⑥ 154/23kV M. It can include Tr, ⑦ 23kV D/L, ⑧ 23kV BUS, ⑨ 23kV BUS TIE, ⑩ 23kV BUS SECTION, ⑪ 23kV Sh.C, etc.

The substation operation database can be composed of the topology as much as the actual power facilities for each substation, and the substation operation database maps to a virtual layer during internal processing to recognize the topology, and a virtual layer. After the operation is processed in a global database, when the result of failure determination and recovery procedure creation is displayed, it can be converted back to the substation operation database and displayed.

Virtual Layer is composed of the maximum number of topology for each power facility that can be configured with 154kV substations, enabling all types of topology processing, and real-time power facility processing on the mapped virtual layer. By linking operation data (operation status and measurement values), it is possible to recognize various substation operation conditions such as single bus, multiple bus, ceasefire, both DS (Disconnection Switch) operation, and bus bar diagonal.

As a feature of the present invention, the failure determination unit 120 may receive failure data from an intelligent electronic device (IED) 200 when a failure occurs at a specific point or device of a substation and determine the point of failure and the type of failure. For most failures that may occur in substations of 154kV or higher, the failure judgment result can be automatically generated and displayed as soon as it occurs.

The types of fault determination that can be displayed on the fault determination unit 120 are (a) fault on the transmission line (T/L), (b) fault on the 154kV bus (BUS) side, (c) fault on the transformer (M.Tr), and ( D) It can be largely divided into 5 types, such as a failure on the 23kV distribution line (D/L) side and (e) a failure on the 23kV bus (BUS) side.

The contents of the failure and countermeasures for each of the five failure judgment types are as follows.

First of all, (A) In the case of a failure on the transmission line (T/L) side, the transmission line is an overhead or underground line that connects the substation and the substation.

Transmission line (T/L) side failure is (1) short circuit, ground fault, (2) transmission line GIS (Gas Insulation Substation) or DS (Disconnection Switch) failure, (3) Transmission line B/F (Breaker Fail) ) There are three types of faults, including (1) short circuit and ground fault types, when a short circuit or ground fault occurs in the section of the transmission line, the relay for main protection or post protection operates, causing the fault current to flow to other facilities through the transmission line. The equipment can be protected by momentarily shutting off the corresponding breaker so that it does not flow.

Transmission line (T/L) side failure (2) Transmission line GIS or DS failure type is when a failure occurs due to insulation breakdown in the equipment inside the transmission line, and the transmission line or transformer connected to the accident bus by operating the relay for protection of the bus. Equipment can be protected by collectively blocking all primary circuit breakers. (3) Transmission line B/F (Breaker Fail) failure type is when the circuit breaker for transmission line fails, short circuit, ground fault and B/F If a breakdown occurs at the same time, the transmission line breaker is not blocked due to malfunction due to a short circuit or ground fault in the line.Therefore, the bus protection relay of the bus connected to the transmission line operates and other transmission lines or transformers connected to the bus line 1 All vehicle-side circuit breakers are collectively cut off to protect the facility, and the transmission line breaker can be maintained in a closed state due to malfunction.

As the second type of failure determination (B) In the case of a 154kV bus-side failure, the bus consists of two buses, which are called #1 BUS and #2 BUS.

There are two types of 154kV bus-side failure: (1) #1 bus breakdown and (2) #2 bus breakdown. (1) #1 bus breakdown type is #1 bus insulation breakdown. Power transmission lines and transformers connected to the BUS cannot be supplied with power through #1 BUS, and at this time, the relay for protection of the bus is operated, and both the transmission line connected to the #1 BUS and the transformer primary circuit breaker are tripped (blocked) to take measures. .

(2) #2 bus failure type of 154kV bus side failure is that the insulation of #2 BUS is broken, and the transmission line and transformer connected to #2 BUS cannot receive power through #2 BUS, and the relay for bus protection is operated. As a result, both the transmission line connected to the #2 BUS and the transformer primary circuit breaker can be tripped (blocked).

As the third type of failure determination, (C) In the case of a fault on the transformer (M.Tr) side, a maximum of four transformers are usually installed in one substation, and it is responsible for reducing the 154kV voltage to 22.9kV, but it is reversed depending on the situation. You can also drive by boosting it with.

Transformer (M.Tr) side fault is (1) transformer internal fault, (2) transformer primary GIS or DS fault, (3) transformer secondary GIS or DS short fault, (4) transformer secondary GIS or DS ground fault , (5) It can be judged as 5 types, such as GIS or DS ground fault on secondary side of transformer + NGR break.

First of all, (1) Transformer internal failure type is that internal failure (mechanical failure, electrical failure) occurs. In order to prevent the spread of failure to other facilities, the transformer primary and secondary circuit breakers may trip.

Next (2) The type of failure of the primary side GIS or DS of the transformer is when a breakdown occurs due to the primary side GIS or DS insulation breakdown of the transformer, and the bus protection relay operates to block all transmission lines connected to the accident bus or the primary breaker of the transformer. (3) The secondary side GIS or DS short-circuit failure type of the transformer is when a breakdown occurs due to the secondary side GIS or DS insulation breakdown of the transformer. A fault spreads on the BUS side, and all connected transformer secondary circuit breakers can be shut off at once.

And (4) The secondary side GIS or DS ground fault type of the transformer is when a fault occurs due to the secondary side GIS or DS insulation breakdown. In case of a ground fault, the 51SN relay operates and the fault spreads to the 23kV BUS side connected to the transformer. The connected transformer primary and secondary circuit breakers are all shut off at once. (5) The secondary side GIS or DS ground fault + NGR break fault type is when the secondary side GIS or DS insulation breakdown fault and NGR break fault occur at the same time. If the faulty transformer is connected to the sound bank after the 59GT is operated because it cannot detect the ground fault due to the NGR disconnection, the ground fault element is spread to the connected transformer by the 51SN relay. Can all trip.

As the fourth type of failure determination, (D) In the case of a 23kV distribution line (D/L) failure, a maximum of 4 transformers are usually installed in one substation, and a section is divided for each transformer to share the load for each transformer. Can handle the load of the transformer by installing up to eight distribution lines.

23kV distribution line (D/L) failure is (1) short circuit of distribution line, ground fault, (2) GIS or DS short circuit failure of distribution line, (3) GIS or DS ground fault failure of distribution line, (4) GIS or DS of distribution line It can be judged in four types: ground fault + NGR break.

First of all, (1) Short circuit and ground fault types of distribution lines are short circuits or ground faults in the distribution lines. To protect the distribution lines, overcurrent and overvoltage relays operate to trip the corresponding distribution line breaker.

Next (2) Distribution line GIS or DS short-circuit failure type is when a failure occurs due to insulation breakdown of the distribution line GIS or DS. In case of a short-circuit failure, the 51S relay operates and the failure propagates to the transformer connected to the BUS, and the secondary side of the transformer. All circuit breakers can be cut off at once, and (3) The type of GIS or DS ground fault in the distribution line is when a breakdown occurs due to insulation breakdown in the distribution line GIS or DS. In case of a ground fault, the 51SN relay operates and the transformer side connected to the BUS A breakdown may spread to the transformer, and both the primary and secondary circuit breakers of the transformer may be shut off at once.

And (4) GIS or DS ground fault + NGR break of distribution line is a case where GIS or DS insulation breakdown of distribution line and NGR break failure occur at the same time, and 59GT operates because the transformer cannot detect ground fault due to NGR break. If the transformer primary and secondary circuit breakers are tripped and then connected to the sound bank, a ground fault element is detected at that time, and both the primary and secondary circuit breakers are tripped by the 51SN relay in the connected transformer.

As the last and fifth failure determination type (e) for a 23kV bus side failure, the bus is divided into 8 by BUS SECTION, and the #1BUS side is 40BUS, 41BUS, 42BUS, 43BUS, and the #2BUS side is 45BUS, 46BUS, 47BUS. , Can be divided into 48BUS.

23kV bus (BUS) side faults, etc. (1) #1BUS side bus short fault, (2) #1BUS side bus ground fault, (3) #2BUS side bus short fault, (4) #2BUS side bus ground fault, etc.4 It can be judged by three types.

First of all, (1) Types of bus short-circuit failure on the #1BUS side are #40,41,42,43 BUS, and the insulation of the BUS is destroyed. (Blocked), and (2) #1BUS side bus ground fault types are #40,41,42,43BUS, and the insulation of BUS is broken, and 1, 2 of the transformer connected to #1 BUS side by 51SN relay. All of the circuit breakers can trip (block).

The following (3) Bus short fault types of #2BUS are applicable to #45, 46, 47, 48 BUS, and the insulation of the BUS is broken. All of the secondary circuit breakers of the transformer connected to the #2 BUS side are tripped by the 51S relay. (Blocked), and (2) #2BUS side bus ground fault type is #45,46,47,48 BUS, and the insulation of BUS is broken. 1, 1 of the transformer connected to #2 BUS side by 51SN relay. All of the secondary circuit breakers can trip (block).

The failure determination unit 120 includes a failure type determination algorithm 121.

The failure type determination algorithm 121 determines the presence or absence of a failure by calculating the failure data acquired from the substation automation system (SA) operating device 10 in the failure determination unit 120, and if not, the failure determination unit 120 It does not operate, and if it is a fault, the fault type and fault point are determined and displayed.

The failure determination in the failure type determination algorithm 121 is determined based on various alarms that occur in case of a failure, changes in the operation status of power facilities, and changes in measurement data. It is directly connected to the corresponding failure so that it can be judged even when the subordinate alarm is missing, and if it is impossible to judge the failure due to the omission of the key element alarm, it is possible to query the past statistical data to make a failure judgment.

The failure type determination algorithm 121 can use statistical data by inquiring past failure case data in addition to the existing failure judgment rules so that failure can be determined even when some failure data such as power facility malfunction or communication error occurs when a substation failure event occurs. By doing so, it is possible to solve the situation in which failure determination is impossible due to the omission of failure data, and past failure cases can be registered in advance in order to utilize the past statistical data.

The fault type determination algorithm 121 can infer and display a fault similar to the fault with fault data that occurred when a fault that is not in the past statistical data occurs, and when inferring a similar fault, the most similar fault among several fault candidate groups is displayed at the top. In turn, faults corresponding to the next fault can be displayed.

The failure type determination algorithm 121 transfers the failure section and failure information as a result of failure judgment inference to the recovery procedure generation unit so that the recovery strategy can be searched. In the case of failure judgment inference, the following ① 154kV T/L, ② 154kV BUS, ③ 154kV BUS TIE, ④ 154kV BUS SECTION, ⑤ 154kV Sh.C, ⑥ 154/23kV M.Tr, ⑦ 23kV D/L, ⑧ 23kV BUS, ⑨ 23kV BUS TIE, ⑩ 23kV BUS SECTION, ⑪ 23kV Sh.C, etc. It can be classified into 11 types of power facilities.

6 to 8 illustrate a failure type determination algorithm 121 for a transmission line failure, a transformer failure, and a distribution line, respectively.

The failure type determination algorithm 121 shown in FIG. 6 is a T/L main protection short-circuit failure, T/L post protection short-circuit failure, T/L main protection ground fault, T in the failure type of the transmission line (T/L). /L Post-protection ground fault can be judged.

The fault type determination algorithm 121 shown in FIG. 7 is a fault type M.Tr CB B/F 87 fault, M.Tr CB B/F 96P fault, M.Tr CB B/F 96D fault, M .Tr CB B/F 96T failure can be judged.

The failure type determination algorithm 121 shown in FIG. 8 may determine a failure of an over current ground relay (OCGR) in a failure type of a distribution line (D/L).

As a feature of the present invention, the recovery procedure generation unit 130 may automatically generate a recovery procedure according to a failure determination type using an artificial intelligence algorithm, and perform recovery processing for a failure such as separation of a failure section and a load transfer.

When a failure occurs, the recovery procedure generation unit 130 compares the equipment operating conditions before and after the failure, prepares an optimal recovery plan according to the failure type, and automatically generates the recovery procedure. The algorithm used at this time is using a virtual global database. It is a technique to search for location information, while keeping in mind the load factor that the facility can bear during recovery, it is possible to create a recovery procedure and provide it to the operator while searching for adjacent devices one by one so that optimal recovery is achieved within the allowable load factor range during pressurization. In this case, the generated recovery procedure is characterized in that it does not violate the electrical interlock condition between facilities existing in the 154kV substation.

The recovery procedure generation unit 130 includes a failure recovery procedure generation algorithm 131.
The fault recovery procedure generation algorithm 131 recognizes the fault determination information inferred by the fault determination unit 120 and the substation topology, separates the fault section, and when the fault section cannot be separated, transfers the healthy load to separate the fault section from the fault section, and load transfer. In this case, all available facilities in the substation are calculated and transferred within the maximum allowable power range.If the maximum range is exceeded, the D/L breaker is opened and the load is reduced by opening the D/L breaker, assuming the load conversion of the distribution center, and the load transfer is performed when the load transfer is within the possible range. Can be enforced.

The failure recovery procedure generation algorithm 131 searches for a failure recovery strategy based on the failure determination information inferred by the failure determination unit 120 and generates a recovery procedure based on the KEPCO standard recovery procedure. 154kV T/L, ② 154kV BUS, ③ 154kV BUS TIE, ④ 154kV BUS SECTION, ⑤ 154kV Sh.C, ⑥ 154/23kV M.Tr, ⑦ 23kV D/L, ⑧ 23kV BUS, ⑨ 23kV BUS TIE, ⑩ 23kV It is possible to establish a recovery procedure strategy by dividing by 11 types of power facilities such as BUS SECTION and ⑪ 23kV Sh.C.

8 to 10 illustrate a failure recovery procedure generation algorithm 131 for failures at the transmission line (T/L), transformer (M.Tr), and distribution line (D/L), respectively.

FIG. 8 shows a failure recovery procedure generation algorithm 131 of T/L CB B/F and T/L 87, 21 of a transmission line, and FIG. 9 shows a failure recovery procedure generation algorithm 131 of BUSPRO 87B1 and 87B2. Fig. 10 shows the failure recovery procedure generation algorithm 131 of M.Tr 51SN and D/L OCGR.

An example of use of the substation automation system operating device 10 equipped with a function for automatically generating a failure determination and failure recovery scenario according to a preferred embodiment of the present invention is as follows.

When the substation automation system operating device 10 of the present invention is operated, the virtual layer unit 110 initializes the substation automation system SA, and the current operating state and measurement values (measured data) such as the state values of power facilities. Acquires and recognizes the topology of the substation before failure.

This is an initialization step of the substation automation system operating device 10 equipped with the function of automatically generating failure determination and failure recovery scenarios of the present invention, and it will be a preparatory work for determining whether a failure occurs in the future and generating a recovery procedure according to the failure type. I can.

When a failure event occurs in this state, the failure determination unit 120 receives and calculates failure data from the remote unit (RTU) 300 and the intelligent electronic device (IED) 200 to determine the presence or absence of a failure. In this case, it does not operate and is processed as a normal event to return to the initialization stage of acquiring the power facility status value and measurement data again, and recognizing the substation topology to achieve a standby state.

However, when the failure event is determined to be a failure, the failure type and the failure point may be determined and displayed and guided through an operation monitor, a mobile device, a broadcasting network, etc. so that an administrator can recognize it.

Subsequently, the failure determination unit 120 calls the failure type determination algorithm 121 and divides it into 11 pre-categorized power equipment types, and the power equipment status values and measurement data measured before the failure, and the power equipment status measured after the failure event occurs. By comparing the value and measurement data, it analyzes where the fault section is and what fault information is displayed, and judges the fault condition.

When the failure determination unit 120 generates a failure determination result, the failure determination result is provided to the recovery procedure generation unit 130.

The recovery procedure generation unit 130 calls the failure recovery procedure generation algorithm 131 and divides the corresponding failure by 11 electric power facilities based on the KEPCO standard recovery procedure according to the type of failure determination received from the failure determination unit 120. Recovery procedures can be created according to the type of judgment.

When the generation of the recovery procedure is complete, the substation automation system operating device 10 equipped with the function of automatically generating a failure determination and failure recovery scenario of the present invention displays the failure determination result on a monitor, mobile device, etc., and displays the failure point and failure type. You can create and display a recovery procedure document (a guide to a failure recovery scenario).

Accordingly, the failure determination and failure recovery procedure of the substation automation system operating device 10 equipped with the automatic generation function of the failure determination and failure recovery scenario of the present invention can be completed.

Meanwhile, according to a further embodiment of the present invention, a control and communication record analysis device may be included for external control and communication record analysis of the substation automation system SA.

The control and communication record analysis apparatus according to a further embodiment of the present invention includes a field facility 700, an instrumentation control apparatus 400, a host server 600, a terminal unit 800, a record analysis apparatus 500, and a communication gender ( 900), may be configured to include a power supply unit 1000.

The host server 600 is connected to the instrumentation control device 400 through a communication network and is installed in a remote location, and receives the status and measurement information of the field facility 700 from the instrumentation control device 400, and a control signal for the field facility 700 Can be sent.

Here, the field facility 700 includes a substation as field power facility.

The instrumentation control device 400 may be installed in a field such as a substation and connected to the field facility 700 to be provided for operation of the field facility 700.

The instrumentation control device 400 receives operation information and measurement information measured by the field facility 700, and provides it to the host server 600, so that the status of the substation managed by the field facility 700 can be constantly checked and coped with at a remote location. You can apply to help.

In addition, the instrumentation control device 400 may receive a control signal from the host server 600.

When the instrumentation control device 400 receives an operator's control command from the host server 600, it starts the control module 440 and transmits a control signal corresponding to the control command to the field facility 700 to operate the corresponding control process. You can do it.

Meanwhile, the instrumentation control device 400 may be activated by a local automatic operation condition in controlling the field facility 700.

That is, the instrumentation control device 400 does not only perform the relay role between the host server 600 and the field facility 700, but directly to the field facility 700 when the corresponding condition is satisfied by the automatic operation condition set by itself when necessary. A control command for the field facility 700 may be transmitted to the field facility 700 through the control module 440 so that the field facility 700 may be controlled.

The instrumentation control device 400 is physically connected to the host server 600 installed in a remote location through various communication lines, and can exchange various information through a plurality of communication protocols.

In summary, the instrumentation control device 400 provides operation information of the field facility 700 to the host server 600, and a control signal to the field facility 700 according to a control command of the host server 600 or a local automatic operation condition. It may be specified as a function to allow the field facility 700 to be controlled by delivering.

To this end, the instrumentation control device 400 may include a central processing unit 410 (CPU), a communication module 420, a monitoring module 430, and a control module 440.

The communication module 420 has a communication function so that the instrumentation control device 400 is connected to the host server 600 to transmit the status and measurement information of the field facility 700 and receive a control command signal from the host server 600. And, it is possible to perform a function of checking a communication state connecting the host server 600 and the field facility 700.

The control module 440 may transmit a control signal to a corresponding field facility 700 according to a control signal of the host server 600 received from the communication module 420 so that the facility can be controlled.

The monitoring module 430 receives status and measurement information from the field facility 700 and transmits it to the communication module 420 so that the operation information of the field facility 700 can be provided to the host server 600.

The central processing unit 410 functions to operate so that the communication module 420, the control module 440, and the monitoring module 430 are organically connected to transmit and receive various information and perform computational processing. ), local automatic operation logic is built-in, and when the automatic operation conditions for the field equipment 700 are established, control by generating a control signal capable of controlling the field equipment 700 by itself without a control command from the host server 600 It can be provided to the module 440.

In the end, the instrumentation control device 400 is a host server 600 and field equipment 700 and various information through the configuration of the central processing unit 410, the communication module 420, the monitoring module 430, and the control module 440. It will be able to transmit and receive and control functions.

Meanwhile, since the instrumentation control device 400 is connected to the field facility 700, the monitoring module 430 receives operation information of the field facility 700, and the control module 440 provides a control signal to the field facility 700. In this case, the terminal unit 800 may be configured between the instrumentation control device 400 and the field facility 700 to connect both ends.

The terminal unit 800 connects a number of terminals inside the control module 440 and the monitoring module 430 with a number of load facilities constituting the field facility 700 to transmit and distribute operation information and control signals through a unified passage. And can be controlled.

The field facility 700 is provided with a plurality of load facilities, and may be connected to the control module 440 so as to be individually controlled for each load facility.

To this end, a plurality of auxiliary relays capable of individually driving a plurality of field facilities 700 load facilities may be provided as a control signal in the control module 440.

For example, if the on-site facility 700 has devices of load 1, load 2, ..., load N as load facilities, the control module 440 also includes R1, R2, .. ., An auxiliary relay of RN may be provided.

If the instrumentation control device 400 receives the control signal of R2 from the host server 600, the central processing unit 410 recognizes it and closes the auxiliary relay of R2 in the control module 440 and starts it, so that the corresponding control signal is applied to the load 2 It can be transferred to the facility of the load 2 so that the equipment can be controlled.

As described above, the terminal unit 800 is a situation in which the field facility 700 is composed of a plurality of load facilities, and the control module 440 and the monitoring module 430 for controlling and collecting operation information thereof are composed of a plurality of auxiliary relays. It can be configured for relaying and branching for fast and accurate matching and delivery of multiple pieces of information.

To this end, the terminal unit 800 may include a control terminal 820 and a monitoring terminal 810.

The control terminal 820 is configured between the instrumentation control device 400 and the field facility 700 in receiving a control signal from the instrumentation control device 400 and providing it to the field facility 700 to relay and branch the corresponding control signal. Can function.

The monitoring terminal 810 may function to receive status and measurement information from the field facility 700, branch it, relay it to the instrumentation control device 400, and provide it.

Based on the above-described configuration, the substation can quickly and accurately grasp the field condition and record communication for the field equipment 700 distributed in a number of regions and a number of load facilities for each field equipment 700 even at a remote location.

However, in the event of an emergency situation due to various reasons, there is a risk that there is a problem in the control system and the communication system that was not recognized even though the control of the on-site facility 700 that accompanies appropriate measures must be taken immediately. Can exist.

For example, in the case of occurrence of various failure events for each power facility of the substation described above, the host server 600 transmits a control command to the instrumentation control device 400 by remote operation, and then transmits the control command to the field facility 700 to perform control. However, if a problem occurs in the control module 440 of the instrumentation control device 400 or a problem occurs in the control signal output due to other factors, the field facility 700 may not be operated.

In addition, when the instrumentation control device 400 is in an automatic operation condition, in the case of a situation in which the field facility 700 needs to be controlled, the automatic control command generated by the internal logic has a problem in the control module 440 or a problem in the control signal output. If there is, the field facility 700 may not operate.

In addition, the field facility 700 control signal generated from the host server 600 cannot be properly transmitted to the instrumentation control device 400 due to a communication problem, or the operation information measured by the field facility 700 is accurately hosted in real time. Since it is not provided to the server 600, the operator may not be aware of it, and thus the response may not be timely performed.

Accordingly, a dangerous situation leading to a major accident may occur due to delay in coping with the failure of the substation.

Therefore, as an additional embodiment of the present invention, the record analysis device 500 is included and configured to prevent such a dangerous situation.

The recording and analysis device 500 may be provided to record and analyze control signals and communication signals transmitted and received between the host server 600 and the instrumentation control device 400, and the instrumentation control device 400 and the terminal unit 800. , Through this, it is possible to check whether the host server 600, the instrumentation control device 400, and the terminal unit 800 are operated in a normal situation at all times and maintain the normal situation.

The recording and analysis device 500 can be obtained by connecting a control signal and a communication signal to a communication and control network connected to the instrumentation control device 400 and branching it.

The recording analysis apparatus 500 may include a communication processing unit 530, a control processing unit 540, a recording unit 520, and a main processing unit 510 for this purpose.

The communication processing unit 530 is connected to a communication network connecting the host server 600 and the instrumentation control device 400 to receive real-time communication details between the host server 600 and the instrumentation control device 400, and analyzes it. Communication analysis content may be transmitted to the recording unit 520.

The control processing unit 540 can access the instrumentation control device 400 and the control terminal 820 connection network to obtain and analyze the size and operation period of the control signal, and store the acquired information and analysis contents in the recording unit 520. I can deliver.

The recording unit 520 receives and stores the communication details and analysis details, control signal details and analysis contents transmitted from the communication processing unit 530 and the control processing unit 540, and simultaneously transmits them to the remote host server 600 in real time. can do.

The main processing unit 510 may link the communication processing unit 530, the control processing unit 540, and the recording unit 520, manage recording and analysis functions, and control all functions of the recording and analysis apparatus 500.

The main processing unit 510 is connected to the host server 600 and a remote operator through a wired/wireless communication network, analyzes the details of communication signals and control signals recorded in the recording unit 520, and analyzes the analysis results in real time with the host server 600 and the remote operator. It is transmitted to and related contents may be recorded in the recording unit 520.

That is, the main processing unit 510 receives a communication signal and a control signal obtained by the communication processing unit 530 and the control processing unit 540, digitized and processed into real values, and analyzes errors or abnormalities, It exchanges and can function to control other components in the record and analysis apparatus 500 by commands of the host server 600 and its own operation logic.

A detailed function of the recording analysis apparatus 500 will be described based on the components of the recording analysis apparatus 500 described above.

First, the control processing unit 540 may check whether a control signal transmitted from the host server 600 to the field facility 700 is appropriate.

The control signal can be transmitted to the field facility 700 as a voltage output value such as DC 0~24V, DC 0~48V, and the field facility 700 operates the corresponding equipment when the voltage output value of the preset control signal is received. It performs a stop action.

At this time, the control processing unit 540 of the recording and analysis device 500 is connected to a physical connection network between the instrumentation control device 400 and the control terminal 820 to obtain a control signal, and control input to the control processing unit 540 The signal voltage can be determined to be normal only when it is formed at DC 0~24V and DC 0~48V.

However, the voltage range is provided as an example and may vary depending on equipment and operating conditions.

The control processing unit 540 is connected between a plurality of auxiliary relays configured in the control module 440 and a plurality of control terminals 820 matched and connected to each auxiliary relay, and may be connected and provided in a configuration connected in parallel. have.

The control processing unit 540 digitizes the input voltage to determine the voltage level of the control signal, collects the generation period of the control signal in milliseconds, and analyzes it in real time.

When the control processing unit 540 transmits the determined voltage level and the generation period of the control signal to the main processing unit 510, the main processing unit 510 analyzes the data to determine whether the output voltage of the control signal is normal and whether the generation period is normal. It may be determined whether or not a control signal for adjusting the field equipment 700 in the instrumentation control device 400 including, etc. operates normally.

The control processing unit 540 measures the voltage output range of the control signal through the above process and records and analyzes whether it falls within the output range of the voltage capable of controlling the field facility 700 or is out of the output range.

In addition, the control processing unit 540 may notify the controllable state of the field facility 700 by transmitting the recording and analysis results to the host server 600 through the main processing unit 510 in real time.

If an abnormal situation such as the output range of the control signal detected by the control processing unit 540 is out of the controllable voltage range or no voltage output is detected, the main processing unit 510 immediately sends to the host server 600. Error event information may be transmitted, and when an error action command is received from the host server 600, the main processing unit 510 may transmit a control signal of the corresponding command to the control processing unit 540 to perform a corresponding action.

At this time, the main processing unit 510 may transmit and notify the error event information of the control processing unit 540 to the mobile device of the remote operator through the communication processing unit 530 using a wireless communication network, and an action command for the situation is sent to the operator. If it occurs from a mobile device, you can receive it and take the appropriate action.

The target section to be recorded and analyzed by the control processing unit 540 may be set by using the connection contact of the instrumentation control device 400 connected to each of the plurality of control terminals 820 matched with the plurality of field facilities 700 as a control point. I can.

That is, the control processing unit 540 checks each voltage output range input to a plurality of control points, records and analyzes whether it is within a preset voltage range or is detected, and transmits the result to the recording unit 520 The main processing unit 510 allows transmission to the host server 600 and the operator mobile device.

In addition, the control processing unit 540 can also measure and analyze the control signal contact maintenance time for each control point and provide it to the host server 600, and error events occurring at the control points are the host server 600 and the operator mobile device. It can be simultaneously transmitted to, and when a control action command for an error event is received from the host server 600 or the operator mobile device, the corresponding action can be performed.

Summarizing the contents of recording and analyzing control signals in the control processing unit 540 and the main processing unit 510 of the recording and analysis device 500, check and record the control signal voltage range for each control point, when out of or out of the voltage range or not detected. Error event processing, control signal voltage contact maintenance time check and recording for each control point, and error event processing may be included when the contact maintenance time is less than or exceeds the operable time.

Meanwhile, the communication processing unit 530 may record all control and communication details transmitted/received between the instrumentation control device 400 and the host server 600 and analyze it in connection with the main processing unit 510.

To this end, a communication gender 900 may be provided as a communication hub in a communication network connecting the instrumentation control device 400 and the host server 600.

The instrumentation control device 400 and the host server 600 can communicate with each other through the communication gender 900, and the communication processing unit 530 of the recording and analysis device 500 is branched from and connected to the communication gender 900 to perform instrumentation. Communication details between the control device 400 and the host server 600 can be acquired.

The communication processing unit 530 records the acquired communication details and analysis contents in the recording unit 520, and if an error is found during the analysis of the communication details, the communication processing unit 530 transmits to the host server 600 and the operator mobile device to notify the communication status error situation. have.

Summarizing the contents of the communication processing unit 530 to check the communication signal, communication period and communication pattern recording and analysis, communication format error check and recording, communication module 420 replacement time through the response pattern analysis of the communication module 420 Checks may be included.

The communication processing unit 530 may transmit the communication details and analysis contents to the recording unit 520 to be recorded.

The communication processing unit 530 may be provided including a communication specification of RS232/48/422 to MODEM in Ethernet 100Base-T/100Base-FX as an embodiment of the present invention, and the communication protocol is MODBUS, DNP3. It can be configured including 0, C-Net, etc.

On the other hand, the recording and analysis device 500 transmits event information to the host server 600 and the operator's mobile device when an error event of the control signal occurs, and the remote operator refers to the received event information and determines that the control power is defective. In the host server 600 or through a control command through the operator mobile device, the control power currently in use can be switched to the spare power supply 1020.

A power supply unit 1000 for supplying power is connected to the instrumentation control device 400. The power supply unit 1000 includes a main power supply 1010 that supplies power in a normal situation and a spare power supply provided to supply power in an emergency situation ( 1020).

The electric circuit connecting the power supply unit 1000 and the instrumentation control device 400 is configured such that the main power supply 1010 and the spare power supply 1020 are connected to the instrumentation control device 400 through the switch 1030, and the switch 1030 When the contact point of is connected to the main power supply 1010, the instrumentation control device 400 receives power from the main power supply 1010, and when the contact point of the switch 1030 is connected to the spare power supply 1020, the instrumentation control device 400 is reserved. Power is supplied from the power supply 1020, and if the contact point of the switch 1030 is not connected to both the main power supply 1010 and the spare power supply 1020, power supply to the instrumentation control device 400 is stopped.

At this time, the recording analysis device 500 may be provided to be electrically connected to the switch 1030 to control or open/close the switch 1030.

The recording and analysis device 500 receives the power transfer command to switch to the standby power supply 1020 because it is determined that the main power supply 1010 currently being used by the remote operator is abnormal, and receives the power supply and uses the main power supply of the switch 1030. It can be separated from (1010) and connected to the spare power supply 1020 so that the spare power supply 1020 is supplied to the instrumentation power supply.

To this end, the recording and analysis device 500 may include a control power transfer terminal 550, and one end of the control power transfer terminal 550 is connected to the main processing unit 510, and the other end is the power supply unit 1000 electric circuit. It may be provided in connection with the switch 1030.

When the recording and analysis device 500 receives a control command from a remote operator from the communication processing unit 530, it transmits it to the main processing unit 510, and the main processing unit 510 analyzes the control command and transfers the control power when the power is switched. The command is transmitted to the control power transfer terminal 550, and the control power transfer terminal 550 interprets the received transfer command to connect the switch 1030 to the main power supply 1010 or the standby power supply 1020, or Whether to completely separate from the power supply unit 1000 is selectively performed.

At this time, although the control processing unit 540 of the recording analysis device 500 determines that there is an abnormality in the control power according to the result of analyzing the control signal, the error event is transmitted to the host server 600 and the operator mobile device. If an operator's control command such as a switchover command of is not received for a predetermined period of time, the control power transfer terminal 550 may automatically transfer control power or switch to stop the power supply according to a preset automatic operation logic.

As described above, the control processing unit 540 and the communication processing unit 530 acquire control signals and communication signals, process them, and transmit them to the main processing unit 510 and the recording unit 520, and the main processing unit 510 analyzes them. One content is transmitted to the recording unit 520 and the host server 600 to perform a record analysis process.

The embodiments of the present invention described above are merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and other equivalent embodiments are possible.

Therefore, it will be appreciated that the present invention is not limited to the form mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

In addition, the present invention is to be understood as including the spirit of the present invention as defined by the appended claims and all modifications, equivalents and substitutes within the scope thereof.

10: Substation automation system operating device equipped with automatic generation of failure judgment and failure recovery scenarios
120: substation
100: Substation automation system (SA) server device
110: virtual layer part
120: failure determination unit
121: failure type determination algorithm
130: recovery procedure generation unit
131: Failure recovery procedure generation algorithm
140: field information processing device
150: information monitoring and diagnosis device
200: Intelligent Electronic Device (IED)
300: Remote station device (RTU)

Claims (5)

In the substation automation system operating device that monitors, controls, and manages digital substations,
A substation automation system (SA) server device that includes an on-site information processing device and an information monitoring and diagnostic device and provides a communication service;
Intelligent electronic device (IED) that performs protection relay, control, monitoring, measurement, and interlock for field power facilities and provides communication services;
A remote station (RTU) installed in a legacy type substation to acquire operation information from power facilities and perform remote monitoring, control, and measurement functions of power facilities; And
Including; control and communication record analysis device for performing external control and communication record analysis of the substation automation system,
The substation automation system (SA) server device,
A virtual layer unit for performing a substation initialization step for determining a failure and generating a recovery procedure by recognizing a current operation state of a substation power facility and a topology of a substation before failure including measurement data;
A failure determination unit that receives failure data from an intelligent electronic device when a substation failure occurs and determines a failure point and a failure type; And
Further comprising; a recovery procedure generation unit in charge of recovery processing for failures such as separation of fault sections and load transfer,
The failure determination unit further includes a failure type determination algorithm,
The failure type determination algorithm,
The failure data acquired from the substation automation system operating device is calculated to determine the presence or absence of a failure. If it is not a failure, the failure determination unit does not operate, and if it is a failure, the failure type and failure point are determined and displayed.
Various alarms that occur in the event of a failure are given an important priority so that when a key element is operated, it is directly connected to the corresponding failure, so that it is judged even when a subordinate alarm is omitted. It can be judged, and when a failure that is not in the past statistical data occurs, the failure data that is similar to the failure is inferred and displayed.When inferring a similar failure, the most similar failure among several failure candidates is displayed in the upper rank and sequentially Further comprising indicating a corresponding fault,
The control and communication record analysis device,
Field facilities including substations as field power facilities;
An instrumentation control device connected to the field facility and installed for field facility operation, receiving operation information and measurement information measured by the field facility, and transmitting a control signal to the host server;
A host server connected to the instrumentation control device through a communication network and installed at a remote location, receiving status and measurement information of the field facility from the instrumentation control device, and transmitting a control signal for the field facility;
A monitoring terminal that receives the status and measurement information of the field facility and provides it to the instrumentation control device; And a control terminal receiving a control signal from the instrumentation control device and providing it to the field facility; a terminal unit configured to connect the instrumentation control device and the field facility;
A communication gender that is connected to an external communication network connecting the host server and the instrumentation control device to branch the communication network so that communication details can be obtained from outside the instrumentation control device in real time;
It is configured separately on the outside of the instrumentation control device and the terminal unit, and is connected to a communication gender so that the communication signal between the host server and the instrumentation control device can be checked outside of the instrumentation control device, but is configured to operate independently of the communication function of the instrumentation control device. It is configured to operate separately without affecting the control function of the instrumentation control device and the function of the terminal part, and can be checked by obtaining a voltage output signal by external connection to the connection control network of the instrumentation control device and the terminal part. A recording and analysis device provided to check whether the operation is in real time from the outside to recognize an emergency situation in advance and take action; And
It is provided outside the instrumentation control device and the record analysis device and is connected to each other, and supplies power to the instrumentation control device, and supplies power to the instrumentation control device. Including a further; a power unit consisting of a switch connected to,
Record analysis device,
A communication processing unit for recording and analyzing communication details between the host server and the instrumentation control device acquired from the communication gender;
A control processing unit that analyzes the magnitude and operation period of the control signal of the output voltage obtained by externally connecting to the connection network of the instrumentation control device and the terminal unit;
A recording unit for recording a communication signal provided by the communication processing unit and a control signal provided by the control processing unit;
A main processing unit connected to the communication processing unit, the control processing unit, and the recording unit, adjusting the recording and analysis functions, and connecting the host server and the remote operator through a wired/wireless communication network; And
A control power transfer terminal connected to the switch to switch the main power or spare power according to the control signal received from the main processing unit and connect it to the instrumentation control device; equipped with a function of automatically generating a failure determination and failure recovery scenario, further comprising A substation automation system operating device. The method of claim 1,
Substation topologies include 154kV T/L, 154kV BUS, 154kV BUS TIE, 154kV BUS SECTION, 154kV Sh.C, 154/23kV M.Tr, 23kV D/L, 23kV BUS, 23kV BUS TIE, 23kV BUS SECTION, 23kV Sh. Consisting of C,
The substation operation database is composed of the above topology as much as the actual power facilities for each substation,
The substation operation database further includes mapping it to a virtual layer during internal processing to recognize the topology and converting it back to the substation operation database when displaying the result of failure determination and recovery procedure generation after the operation is processed with the virtual layer global database. Substation automation system operating device equipped with automatic generation of failure judgment and failure recovery scenarios. delete delete The method of claim 1,
The recovery procedure generation unit includes a failure recovery procedure generation algorithm,
The fault recovery procedure generation algorithm recognizes the fault determination information inferred by the fault determination unit and the substation topology to separate the fault section, and if the fault section cannot be separated, the healthy load is transferred to separate the fault section from the fault section.
In case of load transfer, all available facilities in the substation are calculated and transferred within the maximum allowable power range.If the maximum range is exceeded, the load is reduced by opening the D/L circuit breaker and reducing the load, assuming the distribution center load changeover, and then the load reaches the load transfer range. Substation automation system operating device equipped with automatic generation of failure judgment and failure recovery scenarios, which further includes performing transfer.

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