KR20190003044A - Apparatus and Method for recovering failure intalligentlly and automatically - Google Patents

Abstract

According to an embodiment of the present invention, an intelligent and automatic failure recovering apparatus comprises: a plurality of power facilities on first to n^th sites; a remote terminal unit generating monitoring and measuring information about the plurality of power facilities on first to n^th sites; and a central monitoring recovering control portion determining the failure and conducting a recovery of a failure section and failure based on the determined result by receiving the monitoring and measuring information. According to the present invention, a human error is able to be zeroed due to an exact failure decision of an auto failure recovery system and rapid machine operation by classifying and notating events by a type, and conducting rapid auto system recognition, decision and so on.

Description

Technical Field [0001] The present invention relates to an intelligent automatic fault recovery apparatus and method,

The present invention relates to an intelligent automatic fault recovery apparatus for a power system, and more particularly, to a power system intelligent automatic fault recovery apparatus that automatically distinguishes and displays important events required for a power failure operator when a fault occurs, Recovery device and method.

As of the end of 2016, Korea's power system is composed of 827 substations (765kV 7, 345kV 111, 154kV 702, and 66kV 7 substations) nationwide and various causes such as natural disaster such as lightning strike, The failure is continuously generated.

In order to ensure stable operation of the power system, it is necessary to quickly and accurately determine the fault zone and repair the fault in the event of a substation failure.

Conventional substation operation is performed by monitoring the electric power facilities collected from the remote terminal unit (RTU) and acquiring the measurement information through the SCVA (Supervisory Control And Data Acquisition) Is monitored and controlled.

In general, the fault recovery method is to recognize the fault event by the dispatching operator and to perform the fault recovery operation manually after determining the fault section.

Common fault recovery methods that rely heavily on the operator's fault recovery capabilities have the following problems.

That is, in the step of recognizing a failure event, when a failure occurs, a large number of failure events are generated, so that it is possible to omit operator critical failure information.

In addition, in the fault section determination step, there may be a mistake in the fault section determination due to the operator's misjudgment due to the previous fault information or the omission.

In addition, erroneous operation due to human error may occur during the recovery operation, and the power failure time due to other failure propagation and recovery delay may increase.

1. Korean Patent Publication No. 10-2010-0018817 2. Korean Registered Patent No. 10-1132015 (Registration date: March 23, 2012)

The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide an intelligent automatic fault recovery apparatus and method which can prevent occurrence of major fault information or omission of an operator even if a large number of fault events occur when a fault occurs. .

It is another object of the present invention to provide an intelligent automatic fault recovery apparatus and method capable of preventing a mistake in the determination of a fault section from being caused by an operator's misjudgment.

Another object of the present invention is to provide an intelligent automatic fault recovery apparatus and method capable of reducing the occurrence of erroneous operation due to human error during recovery operation and reducing the power failure time due to other failure propagation and recovery delay.

The present invention provides an intelligent automatic fault recovery device for automatically distinguishing and displaying important events required for a power station operator when a fault occurs, and for automatically determining a fault section and performing an automatic fault recovery operation.

Wherein the intelligent automatic failure recovery device comprises:

A plurality of first through n-th field power plants;

A remote subunit for generating surveillance and measurement information for the plurality of first to nth field power plants; And

And a central monitoring / recovery controller for receiving the monitoring and measurement information to determine whether a failure has occurred, and performing a failure interval and a failure recovery based on the determination result.

The central monitoring restoration control unit may include an event detection unit for detecting events related to the occurrence of a failure in the event of a failure; A failure recovery determination unit for determining a failure interval and a failure recovery procedure by a failure determination algorithm when the events are detected; And a control signal generator for generating a control signal for controlling the remote unit to perform the failure recovery procedure.

The central monitoring restoration control unit may further include an event output unit for classifying and representing the events.

In addition, the events may be classified into at least one of relay operation, breaker operation, GAS pressure sensor operation, and malfunction prevention relay operation.

The event output unit may output the fault name according to the fault occurrence result.

In addition, the failure recovery determination unit may include a failure determination unit that determines a failure interval and a failure recovery procedure by a failure determination algorithm when the events are detected; And a recovery procedure output unit outputting the failure recovery procedure.

In addition, the recovery procedure output unit changes the color to a different color upon completion of the recovery procedure.

In addition, the recovery procedure output unit may output the recovery procedure to the automatic recovery execution menu and the manual recovery execution menu.

In addition, the recovery procedure output unit may output the recovery procedure to the pop-up menu.

Also, the control signal generator may output the operation contents of the recovery procedure before the operation of the plurality of the field power facilities in a combination of text, voice, and graphic.

On the other hand, another embodiment of the present invention is a method for monitoring and measuring a plurality of first to n-th field power facilities, comprising the steps of: (a) generating a monitoring and measurement information for a plurality of first to n-th field power facilities; (b) receiving the monitoring and measurement information by the central monitoring recovery control unit; (c) determining whether the central monitoring restoration control unit has generated a fault using the monitoring and measurement information; And (d) performing a failure section and a failure recovery as a result of the central monitoring recovery control section.

In this case, the step (c) includes the steps of: (c-1) detecting events of the fault occurrence when the event detection unit fails; (c-2) when the events are detected, the failure recovery determination unit determines a failure interval and a failure recovery procedure by a failure determination algorithm; And (c-3) the control signal generator generating a control signal for controlling the remote unit to perform the failure recovery procedure.

Further, the step (c-1) may further include the event output unit separating and representing the events.

In addition, the step (c-2) may include: determining a failure interval and a failure recovery procedure by a failure determination algorithm when the failure determination unit detects the events; And a recovery procedure output unit outputting the failure recovery procedure.

According to the present invention, it is possible to make a zero error in the human error due to the accurate fault diagnosis of the automatic fault recovery system and the quick operation of the apparatus by distinguishing and marking according to the event type and performing rapid system automatic recognition and judgment.

Another effect of the present invention is that the automatic system operation is performed within one minute in the recovery operation and no erroneous operation is generated, so that it is possible to achieve an improvement in the electrical quality by shortening the power failure time in the event of a failure.

In addition, another effect of the present invention is that the power failure recovery time can be greatly reduced due to a field event, a failure judgment, a recovery procedure according to the failure judgment, and a recovery operation.

1 is a block diagram of an intelligent automatic fault recovery apparatus 100 according to an embodiment of the present invention.
2 is a detailed block diagram of the central monitoring recovery control unit 120 shown in FIG.
FIG. 3 is a detailed block diagram of the failure recovery determination unit 230 shown in FIG.
4 is a flowchart illustrating an intelligent automatic failure recovery process according to an embodiment of the present invention.
5 is a view showing an event output screen according to an embodiment of the present invention.
FIG. 6 is a screen view showing a recovery procedure output screen according to an embodiment of the present invention.
FIG. 7 is an example showing the failure determination and recovery procedure algorithm shown in FIG.
FIG. 8 is another example showing the failure judgment shown in FIG.
9 is another example showing the recovery procedure algorithm according to FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for similar elements in describing each drawing. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, 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. The term "and / or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Should not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an intelligent automatic fault recovery apparatus and method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an intelligent automatic fault recovery apparatus 100 according to an embodiment of the present invention. 1, the intelligent automatic fault recovery apparatus 100 includes first to n-th field power facilities 111-1 to 111-n, first to nth field power facilities 111-1 to 111-n A central monitoring and recovery controller 120 for receiving monitoring and measurement information to determine whether or not a failure has occurred, and determining a failure interval and a failure, And the like.

The first to n-th field power facilities 111-1 to 111-n include a circuit breaker, a disconnection switch, a transformer, a solid insulation switching device, a relay, a superconducting fault current limiter, a GAS pressure sensor, .

The remote subunit 110 is connected to the first to n-th field power facilities 111-1 to 111-n and monitors and measures the first to nth field power equipments 111-1 to 111- And transmits the generated information to the centralized monitoring restoration control unit 120. Of course, the remote subunit 110 receives the recovery control information from the central monitoring restoration control unit 120, and controls the first to the n-th field power equipment 111-1 to 111-n according to the recovery control information .

The central monitoring recovery controller 120 includes a remote monitoring controller 121 for receiving monitoring and measurement information from the remote unit 110 to determine whether a failure has occurred and a failure recovery module 122 for performing a failure interval and a failure recovery And the like.

1, the failure recovery module 122 is separately configured for the purpose of understanding the embodiment of the present invention. However, the failure recovery module 122 may be included in the remote monitoring controller 121. FIG.

2 is a detailed block diagram of the central monitoring recovery control unit 120 shown in FIG. Referring to FIG. 2, the central monitoring restoration control unit 120 includes an event detection unit 210 for detecting events related to the occurrence of a fault in the event of a fault, and a fault detection unit 220 for detecting a fault, And a control signal generator 240 for generating a control signal for controlling the remote unit to perform the failure recovery procedure.

Of course, the event output unit 220 may further include an event output unit 220 for expressing the events generated by the event detection unit 210 in terms of deflections so that the operator can view the events.

Accordingly, the event detection unit 210 detects the breaker, the breaker input / open state, the operation of the protection relay, the GAS alarm, and the like so that the event output unit 220 causes the event output unit 220 to perform the relay operation, And the operation details of the relay for preventing malfunction, and pops up the display on the display of the operator communication terminal, thereby preventing the operator from omitting the fault information.

In particular, the event detection unit 210 can output the fault name according to the fault occurrence result.

The control signal generator 240 generates a control signal for controlling the remote unit 110 to perform the failure recovery procedure selected by the failure recovery determiner 230. [ In addition, the control signal generator 240 may output the operation details of the restoration procedure before the field operation as a combination of characters, voice, and graphics so that the operator can confirm the field operation after the operation. Therefore, it is possible to perform the next operation after confirming the result of the field operation.

FIG. 3 is a detailed block diagram of the failure recovery determination unit 230 shown in FIG. Referring to FIG. 3, the failure recovery determination unit 230 includes a failure determination unit 310 for determining a failure occurrence, a failure type, and the like, and selecting a recovery procedure for each failure type, a failure recovery unit 310 for, A procedure output unit 320, and the like.

In order to determine a complicated variety of faults through a predetermined fault determination algorithm and to provide an optimal recovery procedure for each fault, the fault determining unit 310 may be connected to a transmission line of a substation (for example, a 154 kV substation) A failure determination and / or a recovery procedure for each type such as a bus, a main transformer, a distribution line (for example, a 23-kV distribution line can be used), and a bus failure. Examples of types of failures due to faults are as follows.

Failure content
Failure type Remarks (Number of recovery algorithms) Failure by 154kV transmission line Primary / rear protection, BF 12 154kV bus failure # 1,2BUS breakdown 4 154kV main transformer

Primary and internal failure M.Tr fault, 87,59 11 Secondary failure 51S, 51SN, 51P 13 Secondary failure (when gas alarm is not generated) 51S / SN, P, CB, DS 12 With 23kV distribution line
And mothership

Broken by distribution line 51S / SN + D / L, CB 25 Failure by distribution line (when gas alarm is not generated) 51S / SN + D / L, CB 12 23kV BUS TIE, SECTION Breakdown 51S / SN, CB, DS failure 16 Sum 105

Here, CB is Circuit Breaker, DS is Disconnection Switch, BF is Breaker Filure, D / L is Distribution Line, and M.Tr is Master Transformer.

Of course, algorithms for such type-specific failure determination and recovery procedures based on such type-specific failures are preset and stored in the fixed determination unit 310. [ FIGS. 7 to 9 are conceptual illustrations of an example of such a failure determination and recovery procedure, which will be described later.

3, the recovery procedure output unit 320 displays a recovery procedure so that the operator can confirm the adequacy of the recovery procedure one more time. In addition, the recovery procedure output unit 320 may output the recovery procedure to the automatic recovery execution menu and the manual recovery execution menu on the display. Thus, the operator can choose between automatic recovery and manual recovery. That is, if the recovery procedure is appropriate, the control signal generation unit (240 in FIG. 2) can automatically control the field power facilities 111-1 to 111-n by executing automatic recovery.

4 is a flowchart illustrating an intelligent automatic failure recovery process according to an embodiment of the present invention. Referring to FIG. 4, first, the event detection unit 210 (FIG. 2) detects events, organizes the event details, and provides an event output screen 401 to the operator in the event output unit 220 S410, S420).

Next, in the case of having a failure determination algorithm according to the event occurrence history, the failure determination unit (310 in FIG. 3) automatically determines the recovery procedure according to the failure type, and the recovery procedure output unit (320 in FIG. 3) (404) to the operator (steps S430, S440, S450). Of course, if there is no corresponding algorithm in step S430, manual fault recovery proceeds (step S491).

Further, even if the manual recovery procedure is selected instead of the automatic recovery procedure in step S450, manual fault recovery is performed.

When the automatic restoration procedure is selected in step S450, the control signal generating unit (240 in FIG. 2)

Voice, and outputs an on-site control signal when it is determined that the operator is correct (steps S460, S470, and S480). Of course, it is also possible to output a combination of text, voice and graphics in addition to voice.

Thereafter, if it is determined in step S490 that the field control is successful, the following steps S460 to S490 are performed to perform the recovery operation. Otherwise, if the field control is unsuccessful in step S490, manual fault recovery is performed (step S491).

In addition, if there is no fault detection algorithm corresponding to the fault event, if the automatic fault recovery is not selected, if the operator check result is not correct, if the field control fails, the fault recovery is manually performed.

5 is a view showing an event output screen according to an embodiment of the present invention. Referring to FIG. 5, the event output screen includes a fault name display window 510, a device operation procedure view window 520, an operation item view window 530, and the like.

The fault name display window 510 displays the fault name judged by the fault judgment algorithm. The device operation procedure view window 520 is displayed to switch to the recovery procedure output screen of FIG. 6 upon selection. The operation view window 530 displays events classified by a relay, a breaker, a GAS pressure sensor, a relay for preventing malfunction, and the like.

FIG. 6 is a screen view showing a recovery procedure output screen according to an embodiment of the present invention. Referring to FIG. 6, the recovery procedure output screen includes a recovery procedure display window 610, a recovery procedure selection window 620, and the like. The recovery procedure display window (610) indicates a recovery procedure indicating the operations of each operation item, and the corresponding recovery procedure that has been restored is displayed in a different color from the restoration procedure that has not yet been completed. In Fig. 6, the completed recovery procedure is displayed in blue.

In the recovery procedure selection window 620, the operator confirms the recovery procedure, performs the recovery operation automatically when the 'automatic recovery execution menu' is selected, and manually performs the recovery operation when the 'manual control execution menu' is selected.

FIG. 7 is an example showing the failure determination and recovery procedure algorithm shown in FIG. In particular, Figure 7 shows one of the fault types of the transmission line. Referring to FIG. 7, a field event 710 is generated from a field power facility (111-1 to 111-n in FIG. 1), and a field event 710 is used to identify an operation item such as a circuit breaker, a disconnector, do. The failure determination unit 310 is configured with a failure determination algorithm 720. [ The failure determination algorithm 720 determines a failure interval through a field event utilizing failure determination algorithm. For this failure determination algorithm 720, a logical sum 721, a logical product 722, a negative circuit, and the like are configured and a failure type 723 is calculated.

This failure recovery operation 730 corresponding to the failure type is set in advance. That is, a device restoration operation procedure corresponding to the determined failure section is determined.

FIG. 8 is another example showing the failure judgment shown in FIG. In particular, FIG. 8 shows an algorithm for failure determination and recovery procedure in case of D / L CB (Breaker Failure) failure + ground fault during 23kV D / L (Distribution / Line) failure. 8, when a field event 810 occurs from the field power plant (111-1 to 111-n in FIG. 1), a fault determination algorithm 820 comprising logical ANDs 821 and 822, Determine the fault type and the fault interval.

9 is another example showing the recovery procedure algorithm according to FIG. 9, M.Tr 51SN (indicating the relay number recognizing the failure of M.Tr.) is reset in a state in which the master M.tr (master transformer) is usable and the 23 kV # 2 BUS side is unavailable S910).

Then, it is determined whether or not a magnetic bank bus tie exists (step S920).

In step S920, if there is a magnetic bank bus tie, failure isolation and bus switching are performed (step S930). In addition, the BUS TIE CB (Circuit Breaker) is inserted, the fault D / L (S.Tr: Slave Transformer) is first opened, the DS (Disconnection Switch) Open.

If it is determined in step S920 that there is no bank BUS TIE, another failure section separation and bus switching are performed (step S940). In addition, the blackout D / L, S.Tr CB is opened, the blackout M.Tr, D / L (S.Tr) input DS is opened, and the first open DS is input. At this time, the fault D / L (S.Tr) is excluded.

Thereafter, the load is supplied to the magnet M.Tr (step S950). In addition, put the first and second power MTC first CB, and input the power D / L, S.Tr CB (only if there is no magnetic bank bus tie).

The terms " part, "" module," and the like, which are described in the specification, denote a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software. (DSP), a programmable logic device (PLD), a field programmable gate array (FPGA), a processor, a controller, a microprocessor, and the like, which are designed to perform the above- , Other electronic units, or a combination thereof. In software implementation, it may be implemented as a module that performs the above-described functions. The software may be stored in a memory unit and executed by a processor. The memory unit or processor may employ various means well known to those skilled in the art.

100: Intelligent automatic fault recovery device
110: remote subunit
111-1 to 111-n: first to n-th field power equipment
120: central monitoring recovery control section
121: Remote winding controller
122: Fault recovery module
210: an event detection unit
220: Event output unit
230: Fault recovery determination unit
240: Control signal generator
310: Fault determination unit
320: Recovery procedure output unit

Claims (20)

A plurality of first through n-th field power plants;
A remote subunit for generating surveillance and measurement information for the plurality of first to nth field power plants; And
A central monitoring and recovery controller for receiving the monitoring and measurement information to determine whether a failure has occurred and for performing a failure interval and a failure recovery as a result of the determination;
And an intelligent automatic fault recovery device.
The method according to claim 1,
The central monitoring restoration control unit,
An event detection unit for detecting events related to the occurrence of a fault in the event of a fault;
A failure recovery determination unit for determining a failure interval and a failure recovery procedure by a failure determination algorithm when the events are detected; And
And a control signal generator for generating a control signal for controlling the remote unit to perform the fault recovery procedure.
3. The method of claim 2,
Wherein the central monitoring restoration control unit further comprises an event output unit for dividing and representing the events.
The method of claim 3,
Wherein the events are classified into at least one of a relay operation item, a breaker operation item, a GAS pressure sensor operation item, and a malfunction prevention relay operation item.
The method of claim 3,
Wherein the event output unit outputs a fault name according to a result of the fault occurrence.
3. The method of claim 2,
The failure recovery determination unit
A failure determination unit for determining a failure interval and a failure recovery procedure by a failure determination algorithm when the events are detected; And
And a recovery procedure output unit outputting the failure recovery procedure.
The method according to claim 6,
Wherein the recovery procedure outputting unit changes the color to a different color upon completion of the restoration procedure.
The method according to claim 6,
Wherein the recovery procedure output unit outputs the recovery procedure to an automatic recovery execution menu and a manual recovery execution menu.
The method according to claim 6,
Wherein the recovery procedure output unit outputs the recovery procedure to a pop-up menu.
3. The method of claim 2,
Wherein the control signal generator outputs the operation contents of the recovery procedure before the operation of the plurality of field power facilities in a combination of characters, voice, and graphics.
(a) generating a monitoring and metering information for a plurality of first through n-th field power plants of a remote subunit;
(b) receiving the monitoring and measurement information by the central monitoring recovery control unit;
(c) determining whether the central monitoring restoration control unit has generated a fault using the monitoring and measurement information; And
(d) performing a failure section and a failure recovery as a result of the determination by the central monitoring recovery controller;
Wherein the at least one of the at least two of the at least two of the at least two of the at least one of the at least two of the plurality of the at least one at least one of

12. The method of claim 11,
The step (c)
(c-1) detecting events related to the occurrence of a failure when a failure occurs in the event detection unit;
(c-2) when the events are detected, the failure recovery determination unit determines a failure interval and a failure recovery procedure by a failure determination algorithm; And
(c-3) generating the control signal for controlling the remote unit to perform the failure recovery procedure by the control signal generator.
13. The method of claim 12,
The method of claim 1, wherein the step (c-1) further comprises the event output unit separating and representing the events.
14. The method of claim 13,
Wherein the events are classified into at least one of a relay operation, a breaker operation, a GAS pressure sensor operation, and a malfunction prevention relay operation.
14. The method of claim 13,
Wherein the event output unit outputs a fault name according to a result of the fault occurrence.
13. The method of claim 12,
The step (c-2)
Determining a failure interval and a failure recovery procedure by a failure determination algorithm when the failure determination unit detects the events; And
And a recovery procedure output to output the fault recovery procedure.
17. The method of claim 16,
Wherein the recovery procedure output unit changes to a different color upon completion of the recovery procedure.
17. The method of claim 16,
Wherein the recovery procedure output unit outputs the recovery procedure to an automatic recovery execution menu and a manual recovery execution menu.
17. The method of claim 16,
Wherein the recovery procedure output unit outputs the recovery procedure to a pop-up menu.
13. The method of claim 12,
Wherein the control signal generator outputs the operation contents of the recovery procedure before the operation of the plurality of field power facilities in a combination of characters, voice, and graphics.

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