KR20140134113A - Digital protection relay and controlling method thereof - Google Patents

Digital protection relay and controlling method thereof Download PDF

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Publication number
KR20140134113A
KR20140134113A KR1020130053849A KR20130053849A KR20140134113A KR 20140134113 A KR20140134113 A KR 20140134113A KR 1020130053849 A KR1020130053849 A KR 1020130053849A KR 20130053849 A KR20130053849 A KR 20130053849A KR 20140134113 A KR20140134113 A KR 20140134113A
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KR
South Korea
Prior art keywords
event
protection relay
digital protection
memory
recording
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KR1020130053849A
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Korean (ko)
Inventor
김경호
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엘에스산전 주식회사
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Priority to KR1020130053849A priority Critical patent/KR20140134113A/en
Publication of KR20140134113A publication Critical patent/KR20140134113A/en

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Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital protection relay and a control method thereof that provide a voice alarm alarm function by adding a voice device to a power device such as a relay or a meter. To this end, the digital protection relay according to the present invention is a digital protection relay interlocked with an arbitrary HMI (Human Machine Interface), a manager device, and an upper monitoring system, comprising: a memory; A controller for recording an event record, which is information on an event / fault, in the memory when an arbitrary event occurs; And an audio output unit for outputting audio information corresponding to the event recording.

Description

[0001] DIGITAL PROTECTION RELAY AND CONTROLLING METHOD THEREOF [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital protection relay and a control method thereof, and more particularly, to a digital protection relay and a control method thereof that provide a voice alarm alarm function to a power device such as a relay or a meter.

Generally, the digital protection relay controls to supply or cut off power to the lower end such as a motor or an electric motor, and protects the lower end when an accident current such as an overcurrent, a short-circuit current, It is a relay.

Korean Patent Application No. 10-2008-0009530

It is an object of the present invention to provide a digital protection relay and a control method thereof that provide a real-time alarm alarm service of a power facility by attaching / adding a sound device to a power facility (or a power device) such as a digital protection relay.

It is another object of the present invention to provide a digital protection relay and a control method thereof that provide a real-time alarm alarm service of a power facility through software upgrading of a relay having an external interface such as USB.

The digital protection relay according to an embodiment of the present invention includes a memory, a human machine interface (HMI), a manager, and a digital protection relay interlocked with an upper monitoring system, the digital protection relay comprising: a memory; A controller for recording an event record, which is information on an event / fault, in the memory when an arbitrary event occurs; And an audio output unit for outputting audio information corresponding to the event recording.

As an example related to the present specification, the event may be any one of an internal operation of the digital protection relay, an operation of a circuit breaker, and an alarm contact output by a self-diagnosis abnormality of the digital protection relay.

As an example related to the present specification, the event recording may include a kind of occurrence event, detailed information about the event, and time of occurrence.

As an example related to the present specification, when writing the event record, the control unit may write information on the fault waveform together into the memory.

In one embodiment of the present invention, when the event recording is the preset important event, the control unit may output voice information corresponding to the event record corresponding to the important event through the voice output unit.

As an example related to the present specification, a display unit for displaying the event record; And a communication unit for delivering the event record to at least one of the connected HMI, the manager apparatus, and the upper monitoring system.

A method for controlling a digital protection relay according to an embodiment of the present invention is a method for controlling a digital protection relay in cooperation with an arbitrary HMI, a manager device, and an upper monitoring system, Recording an event record; And outputting audio information corresponding to the event recording.

As an example related to the present specification, the step of recording the event record may record the information on the fault waveform when recording the event record.

In one embodiment of the present invention, the step of outputting audio information corresponding to the event recording includes: checking whether the event recording is a preset important event; And outputting voice information corresponding to the event record corresponding to the important event when the event recording is the preset important event as a result of the checking.

As an example associated with the present disclosure, the method may further include displaying the event record; And transmitting the event record to at least one of the connected HMI, the manager device, and the upper monitoring system.

The digital protection relay and the control method thereof according to the embodiment of the present invention provide a real-time alarm alarm service of a power facility by attaching / adding a sound device to a power facility such as a digital protection relay, It is possible to efficiently recognize the user without a large additional cost, to prevent the accident from spreading, and to accurately identify the point of occurrence even in the event of an accident, so that an efficient response to an accident can be realized.

Also, the digital protection relay and the control method thereof according to the embodiment of the present invention provide a real-time alarm alarm service of a power facility through a software upgrade of a relay having an external interface such as USB, thereby easily providing a voice alarm alarm service (Or a supervisor) by voice when a predetermined event such as a state check of the nearby power devices inside and around the switchboard and an accident occurs.

1 is a block diagram showing a configuration of an automation system to which a digital protection relay according to an embodiment of the present invention is applied.
2 is a block diagram illustrating a configuration of a digital protection relay according to an embodiment of the present invention.
3 is a signal flow diagram illustrating a communication process of an automation system to which a digital protection relay according to an embodiment of the present invention is applied.
FIG. 4 is a diagram illustrating event recording, which is information on an event according to an embodiment of the present invention.
5 is a diagram illustrating event recording, which is information on a fault according to an embodiment of the present invention.
6 is a diagram illustrating event recording of an upper monitoring system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

1 is a block diagram showing a configuration of an automation system 10 to which a digital protection relay according to an embodiment of the present invention is applied.

As shown in Fig. 1, the automation system 10 includes a digital protection relay 100, a manager device 200, and an upper monitoring system 300. Not all of the components of the automation system 10 shown in Fig. 1 are essential components, and the mainstream automation system 10 may be implemented by more components than the components shown in Fig. 1, The automation system 10 may also be implemented by elements.

The digital protection relay 100 includes a control unit 110, a memory 120, a sound output unit 130, a display unit 140, and a communication unit 150, as shown in FIG. Not all of the components of the digital protection relay 100 shown in FIG. 2 are essential components, and the digital protection relay 100 may be implemented by more components than the components shown in FIG. 2, The digital protection relay 100 may also be implemented by components.

The digital protection relay 100 is not limited to the digital protection relay 100 and may be any power device such as a meter or the like. .

The central processing unit (CPU) 110 performs an overall control function of the digital protection relay 100.

In addition, the controller 110 records (or stores) an event record, which is information on an event / fault, in the memory 120 when an arbitrary event occurs. Here, the event includes an internal operation of the digital protection relay 100, a breaker (not shown), and an alarm contact output by a self-diagnosis abnormality of the digital protection relay 100. The event recording includes a type of an occurrence event, detailed information about the event, and an occurrence time.

In addition, when the event record is stored, the controller 110 may record (or store) the information about the fault waveform in the memory 120 together.

That is, the controller 110 interprets the fault in the occurrence of a fault in the power system, and analyzes the fault waveform as COMTRADE (Common Format for Transient) defined in IEEE Standard C37.111, Data Exchange) file in the memory 120 and used for waveform analysis and fault simulation. The fault waveform recorded in the memory 120 is utilized as information that is very useful / important for identifying the cause of the abnormality at the time of occurrence of an abnormal condition such as a malfunction of the digital protection relay 100.

The control unit 110 outputs the event recorded in the memory 120 through the audio output unit 130 and / or the display unit 140. [

That is, the control unit 110 outputs the audio information corresponding to the event recording through the audio output unit 130, and displays the event recording on the display unit 140.

Also, the control unit 110 determines whether the event recording is a preset important event (or a preset important event recording).

The control unit 110 outputs the voice information corresponding to the event event corresponding to the important event through the voice output unit 130 when the event recording is the predetermined important event can do.

In this way, the controller 110 outputs audio information corresponding to the event recording to all the event records recorded in the memory 120, or if the recorded event record corresponds to the preset important event The voice information corresponding to the preset important event may be selectively output.

The control unit 110 may control the event recording to be performed by an arbitrary HMI (Human Machine Interface) (not shown) connected to the digital protection relay 100, the manager device 200, Or in response to a request.

The memory 120 stores various user interfaces (UI) and / or a graphical user interface (GUI).

In addition, the memory 120 stores data and programs necessary for the digital protection relay 100 to operate.

The memory 120 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD A random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory And a PROM (Programmable Read-Only Memory).

Also, the memory 120 records (or stores) the event record under the control of the control unit 110. [ Here, the event recording includes a type of an occurrence event, detailed information about the event, an occurrence time, information on a fault waveform, and the like.

The audio output unit 130 outputs audio information included in a signal processed by the control unit 110 in a predetermined signal processing. Here, the audio output unit 130 may be a speaker. At this time, the installation length of the audio output unit 130 and the like can be freely adjusted. In addition, when the audio output unit 130 is installed (or added) to an electric distribution board (not shown) or the like, the audio output unit 130 can be installed on the front surface of the switchboard panel.

The audio output unit 130 outputs audio information (including alarm information, for example) corresponding to the event recording under the control of the control unit 110. [

In addition, the digital protection relay 100 may be provided with a speaker for voice alarm alarm by using a voice interface board (not shown) or a USB speaker (not shown) to provide an alarm service can do.

The display unit 140 can display various contents such as various menu screens by using the user interface and / or graphical user interface stored in the memory 120 under the control of the controller 110. [ The content displayed on the display unit 140 includes various text or image data (including various types of information data) and a menu screen including data such as an icon, a list menu, and a combo box. Also, the display unit 140 may be a touch screen. At this time, the display unit 140 can interlock with the HMI.

The display unit 140 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) A display, a flexible display, a three-dimensional display, and an e-ink display.

Also, the display unit 140 displays the event record under the control of the control unit 110. [

The communication unit 150 communicates with any of the internal components or the HMI, the manager device 200, or the upper monitoring system 300 through a wired / wireless communication network. Here, the wireless Internet technology includes a wireless LAN (WLAN), a Wi-Fi, a wireless broadband (Wibro), a World Interoperability for Microwave Access (Wimax), a High Speed Downlink Packet Access, IEEE 802.16, Long Term Evolution (LTE), Wireless Mobile Broadband Service (WMBS), and the like. The local area communication technology may be Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wide Band (UWB), ZigBee, Near Field Communication ), And the like. The wired communication technology may include a power line communication (PLC), a USB communication, an Ethernet, a serial communication, an optical / coaxial cable, and the like.

Also, the communication unit 150 can communicate with the HMI, the manager device 200, or the upper monitoring system 300 through the IEC 61850 protocol.

The communication unit 150 transfers the event record to the HMI, the manager device 200, and the upper monitoring system 300 under the control of the control unit 110. [ At this time, the delivery of the event record may be delivered in a predetermined cycle or may be delivered in response to a request from the HMI, the manager device 200, the upper monitoring system 300, or the like.

The HMI receives the event record transmitted from the digital protection relay (100).

In addition, the HMI outputs the received event record.

The manager 200 receives the event record transmitted from the digital protection relay 100. Here, the manager device 200 may be any terminal such as a smart phone, a mobile terminal, and a notebook computer that can confirm the event recording.

Also, the manager device 200 outputs the received event record.

The upper monitoring system 300 performs protection and monitoring functions for the power system and the like. Here, the upper monitoring system 300 may be a Supervisory Control And Data Acquisition (SCADA) system (or a supervisory control data collection system / power monitoring system).

Also, the upper monitoring system 300 receives the event record transmitted from the digital protection relay 100.

Also, the upper monitoring system 300 displays the received event record. At this time, the upper monitoring system 300 outputs voice information corresponding to the received event record through an audio output unit (not shown) provided in the upper monitoring system 300.

Also, the upper monitoring system 300 confirms whether the received event recording is a second important event (or a preset second important event recording) preset in the upper monitoring system 300.

In addition, when the received event record is the second important event preset in the upper monitoring system 300, the upper monitoring system 300 detects that the received event record is the second important event, And outputs audio information corresponding to the event recording.

As described above, the digital protection relay 100 implements the voice alarm alarm service even in the power reserve inside the substation room, compared with the method of notifying the occurrence of the critical alarm by the ON / OFF change of the LED, It is possible to recognize a specific event in advance through voice information corresponding to the event, and to provide an efficient notification function to the operator.

In this way, it is possible to provide a real-time alarm service of the electric power facility by attaching / adding a sound device to a power facility such as a digital protection relay.

In this way, it is possible to provide a real-time alarm alarm service of a power facility through a software upgrade of a relay having an external interface such as USB.

Hereinafter, a method of controlling the digital protection relay according to the present invention will be described in detail with reference to FIGS. 1 to 6. FIG.

3 is a signal flow diagram illustrating a communication process of an automation system to which a digital protection relay according to an embodiment of the present invention is applied.

First, the digital protection relay 100 records (or stores) an event record, which is information on an event / fault, in the memory 120 included in the digital protection relay 100 when an arbitrary event occurs. Here, the event includes an internal operation of the digital protection relay 100, a breaker (not shown), and an alarm contact output by a self-diagnosis abnormality of the digital protection relay 100. The event recording includes a type of an occurrence event, detailed information about the event, and an occurrence time.

For example, the digital protection relay 100 records the event record, which is information on an event such as power on, in the memory 120, as shown in FIG.

As another example, the digital protection relay 100 records the event record in the memory 120, which is information on a fault related to the state of the relay, as shown in Fig.

In addition, the digital protection relay 100 may record (or store) the information about the fault waveform in the memory 120 when the event record is stored.

That is, the digital protection relay 100 interprets the fault in the occurrence of a fault in the power system, and uses the fault waveform as a COMTRADE file defined in IEEE Standard C37.111, which is used as information important for tracking the cause of the fault Is stored in the memory 120, and is used for waveform analysis and failure simulation (SP310).

Then, the digital protection relay 100 outputs the audio information corresponding to the event recording through the audio output unit 130 included in the digital protection relay 100.

For example, the digital protection relay 100 outputs audio information (e.g., "powered on") corresponding to the power-on recorded in the memory 120.

In addition, the digital protection relay 100 checks whether the event recording is a preset important event, and when the event recording is the preset important event, the digital protection relay 100 responds to the event recording corresponding to the important event The audio output unit 130 can output audio information to be output through the audio output unit 130.

For example, the digital protection relay 100 may be configured such that the event record (e.g., "SW 1, Open, 12/12/31 15: 30: 12.523" (For example, "** relay ") corresponding to the event recording (for example," SW 1, Open, 12/12/31 15:30:12:523 &Quot; Open event occurrence of switch # 1 ") through the audio output unit 130. [

In addition, the digital protection relay 100 outputs the event record and displays the event record on the display unit 140 included in the digital protection relay 100 (SP320).

The digital protection relay 100 then transmits the event record to the HMI (not shown), the manager device 200 and the upper monitoring system 300 connected to the digital protection relay 100 at a predetermined cycle, (SP 330) in response to a request from the HMI or the manager device 200 or the upper monitoring system 300.

Thereafter, the HMI or the manager device 200 or the upper monitoring system 300 receives the event record transmitted from the digital protection relay 100.

Also, the HMI or the manager device 200 outputs the received event record.

Also, the upper monitoring system 300 displays the received event record. At this time, the upper monitoring system 300 outputs voice information corresponding to the received event record through an audio output unit (not shown) provided in the upper monitoring system 300.

In addition, the upper monitoring system 300 checks whether the received event record is a second important event preset in the upper monitoring system 300, and if the received event record indicates that the event is a second important event preset in the upper monitoring system 300 300, the audio information corresponding to the event recording corresponding to the second important event may be output when the second important event is the preset second important event.

For example, the upper monitoring system 300 may be configured to receive the event record (e.g., "27 Stg1: AN # 1_PU AN # 2_PU AN # 3_PU 2009/08/13 15: 12: 13.562 [LOCAL] ") is an event related to pick up, which is the second important event preset in the upper monitoring system 300, audio information corresponding to the received event record Quot; UVR relay element pick-up operation ") (SP340).

As described above, the embodiment of the present invention provides a real-time alarm service of a power facility by attaching / adding a sound device to a power facility such as a digital protection relay, so that information displayed on a screen or an LED can be transmitted to a user It is possible to efficiently recognize the occurrence of an accident, prevent the accident from spreading, accurately identify the point of occurrence even in the event of an accident, and respond effectively to the occurrence of an accident.

In addition, as described above, the embodiment of the present invention provides a real-time alarm alarm service of a power facility through a software upgrade of a relay having an external interface such as a USB or the like to provide a voice alarm alarm service easily, (Or a supervisor) when a preset event such as a status check of nearby power devices and an accident occurs.

The present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

10: Automation system 100: Digital protection relay
200: manager device 300: upper monitoring system
110: control unit 120: memory
130: audio output unit 140: display unit
150:

Claims (6)

Memory;
A controller for recording an event record, which is information on an event / fault, in the memory when an arbitrary event occurs; And
And an audio output unit for outputting audio information corresponding to the event recording. The method of claim 1,
A digital protection relay internal operation, a breaker operation, and an alarm contact output by a self-diagnosis abnormality of the digital protection relay. The method according to claim 1,
A type of occurrence event, detailed information about the event, and a generation time. The apparatus of claim 1,
And when the event record is recorded, information on the fault waveform is recorded together in the memory. The apparatus of claim 1,
Wherein the voice output unit outputs voice information corresponding to the event recording corresponding to the important event through the voice output unit when the event recording is the predetermined important event. The method according to claim 1,
A display unit for displaying the event record; And
Further comprising a communication unit for transmitting the event record to at least one of a connected HMI (Human Machine Interface), a manager device (Manager), and an upper monitoring system.
KR1020130053849A 2013-05-13 2013-05-13 Digital protection relay and controlling method thereof KR20140134113A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170087290A (en) * 2016-01-20 2017-07-28 한국전력공사 Apparatus and method for test of intelligent electronic device
KR102406874B1 (en) * 2022-01-11 2022-06-10 주식회사 대은계전 Automatic control device capable of self-diagnosis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170087290A (en) * 2016-01-20 2017-07-28 한국전력공사 Apparatus and method for test of intelligent electronic device
KR102406874B1 (en) * 2022-01-11 2022-06-10 주식회사 대은계전 Automatic control device capable of self-diagnosis

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