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WO2019168256A1 - Relais de protection numérique - Google Patents

Relais de protection numérique Download PDF

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Publication number
WO2019168256A1
WO2019168256A1 PCT/KR2018/016097 KR2018016097W WO2019168256A1 WO 2019168256 A1 WO2019168256 A1 WO 2019168256A1 KR 2018016097 W KR2018016097 W KR 2018016097W WO 2019168256 A1 WO2019168256 A1 WO 2019168256A1
Authority
WO
WIPO (PCT)
Prior art keywords
status message
message
transmission period
protection relay
status
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2018/016097
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English (en)
Korean (ko)
Inventor
조충건
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LS Electric Co Ltd
Original Assignee
LSIS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LSIS Co Ltd filed Critical LSIS Co Ltd
Publication of WO2019168256A1 publication Critical patent/WO2019168256A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current

Definitions

  • the present invention relates to a digital protection relay connected to a ring network with a plurality of devices, and more particularly to a digital protection relay for reducing the message load on the ring network.
  • a protection relay is a circuit breaker that measures the output current output from the main circuit to the load, and blocks the output current when the magnitude of the output current is excessively large, thereby preventing a circuit such as a fire.
  • the protection relay serves to control or protect other electric circuits connected to the circuit by opening and closing a specific electric circuit, and is divided into a transformer protection relay, a motor protection relay, and a distribution line protection relay.
  • the protection relays are installed in various facilities in the power system, and each protection relay is connected to a network to transmit its status information to another protection relay.
  • a ring network refers to a network in which the topology of the network has a ring shape. More specifically, a ring network is a network in which each of the protective relays constituting the network is connected to two adjacent protective relays in two directions, respectively, to form a continuous ring-shaped communication path as a whole.
  • each protective relay sends and receives GOOSE messages based on the IEC 61850 protocol.
  • each protection relay transmits GOOSE messages to adjacent protection relays by controlling a short period of transmission of GOOSE messages when an event occurs, in order to promptly transmit event occurrence information to all protection relays constituting the network.
  • a digital transmission capable of rapidly delivering event occurrence information to all devices connected to the ring network by transmitting the first status message in both directions of the ring network while gradually increasing the transmission period of the first status message from the minimum period. It is an object to provide a protective relay.
  • the present invention if the second status message received through the ring network is the same as the first status message transmitted to the ring network, by controlling the transmission period of the first status message as the basic period, unnecessary message transmission can be reduced and accordingly It is an object of the present invention to provide a digital protection relay that can reduce the message load on the ring network.
  • the digital protection relay in the digital protection relay connected to a plurality of devices and a ring network, the digital protection relay is configured to gradually increase the transmission period of the first status message from the minimum period.
  • a message transmitter for transmitting a status message in both directions of the ring network, a message receiver for receiving second status messages transmitted from the plurality of devices from both directions of the ring network, and the received second status message and the first message;
  • a transmission period control unit for determining the identity of the status message and controlling the transmission period of the first status message according to the determination result.
  • the present invention by sending the first status message in both directions of the ring network while gradually increasing the transmission period of the first status message from the minimum period, it is possible to quickly send the occurrence information of the event to all devices connected to the ring network. Can be delivered.
  • the present invention if the first status message received through the ring network is the same as the first status message transmitted to the ring network, by controlling the transmission period of the first status message as the basic period, unnecessary message transmission can be reduced. This can reduce the message load on the ring network.
  • FIG. 1 illustrates a digital protective relay in accordance with an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating the digital protection relay shown in FIG. 1 connected to a plurality of devices in a ring network.
  • FIG. 3 is a diagram illustrating a state in which a first status message transmitted by a digital protection relay is received by the digital protection relay in the ring network shown in FIG.
  • FIG. 4 is a diagram illustrating a state in which the transmission period of the first status message gradually increases from the minimum period when an event occurs.
  • FIG. 5 is a diagram illustrating a state in which a transmission period of a first status message is controlled to a basic period when the digital protection relay receives the first status message.
  • the present invention relates to a digital protection relay connected to a ring network with a plurality of devices, and more particularly to a digital protection relay for reducing the message load on the ring network.
  • the protection relay may be a circuit breaker that measures the output current output from the main circuit to the load, and when the magnitude of the output current is excessively large, blocks the output current to prevent a failure such as a fire in the circuit.
  • the protection relay serves to control or protect other electric circuits connected to the corresponding circuit by opening and closing a specific electric circuit, and may be a transformer protection relay, a motor protection relay, a distribution line protection relay, or the like.
  • the present invention relates to a digital protection relay capable of transmitting and receiving a message through a network among the above-described protection relay, and more particularly, to a digital protection relay connected through a ring network.
  • FIG. 1 is a diagram illustrating a digital protection relay according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating the digital protection relay shown in FIG. 1 connected to a plurality of devices in a ring network.
  • 3 is a diagram illustrating a state in which the first status message transmitted by the digital protection relay is received by the digital protection relay in the ring network shown in FIG. 2.
  • 4 is a diagram illustrating a state in which the transmission period of the first status message gradually increases from the minimum period when an event occurs.
  • 5 is a diagram illustrating a state in which the transmission period of the first status message is controlled as the basic period when the digital protection relay receives the first status message.
  • the digital protection relay 100 may include a message transmitter 110, a message receiver 120, and a transmission period controller 130.
  • the digital protective relay 100 shown in FIG. 1 is according to an embodiment, and its components are not limited to the embodiment shown in FIG. 1, and some components may be added, changed, or deleted as necessary. have.
  • the message transmitter 110 and the message receiver 120 to be described below are components defined by functions, and may be included in one or more communication modules.
  • the message transmitter 110 and the message receiver 120 may be controlled by the transmission cycle controller 130, and the transmission cycle controller 130 may be a processor such as a micro controller unit (MCU).
  • MCU micro controller unit
  • the digital protection relay 100 may be connected to a plurality of devices and a ring network.
  • the ring network may mean a network in which the topology of the network has a ring shape. More specifically, the ring network may be a network in which each device constituting the network is connected to two adjacent devices in both directions, respectively, to form a continuous ring-shaped communication path as a whole.
  • the digital protection relay 100 may be interconnected with a plurality of devices to perform data communication. Such data communication may be performed using the IEC 61850 protocol.
  • the message transmitter 110 and the message receiver 120 which will be described later, may be connected to a plurality of devices connected to a ring network through an IEC 61850 communication protocol.
  • IEC 61850 protocol is an international standard communication protocol for substation automation, and is an international standard applied to various devices in the power system to overcome data incompatibility between IED (Intelligent Electronic Device) companies using existing communication protocols such as DNP and MODBUS. Communication protocol.
  • the plurality of devices shown in FIG. 2 are devices different from the digital protection relay 100 to be described later, and may be any device capable of transmitting and receiving messages. Alternatively, the plurality of devices illustrated in FIG. 2 may perform the same function as the digital protection relay 100 described later. In other words, each device shown in FIG. 2 may be the digital protective relay 100 of the present invention.
  • the message transmitter 110 may transmit the first status message M1 in both directions of the ring network while gradually increasing the transmission period of the first status message M1 from the minimum period.
  • the first status message M1 may include status information of the digital protection relay 100.
  • the status information includes measured values such as output current, output voltage, power amount, status values indicating failure such as trip signal, status values for external contact input, contact output or protection by a preset sequence. Information about the operation of the target may be included.
  • the first status message M1 may include source identification information of the corresponding message. Since the first status message M1 is transmitted from the digital protection relay 100, the first status message M1 may include identification information of the digital protection relay 100.
  • the first status message M1 may be transmitted to the plurality of devices in a broadcast manner. Accordingly, each device may receive and process the first status message M1.
  • the message transmitter 110 may variably control the transmission period of the first status message M1, and transmit the first status message M1 in both directions of the ring network according to the variable controlled transmission period.
  • the first status message M1 may be transmitted in clockwise and counterclockwise directions of a continuous communication path constituting the ring network, respectively.
  • the message transmitter 110 may transmit the first status message M1 according to a preset basic period TS before the event occurs, and transmit the first status message M1 after the event occurs. Variable control is possible.
  • the event may occur when the above-described state information of the digital protection relay 100 is a preset condition.
  • the event may occur when the measured value of the digital protection relay 100 satisfies a preset condition, or may occur as a trip signal is generated.
  • the event occurrence condition may be variously set by the user.
  • the message transmitter 110 may transmit the first status message M1 in both directions of the ring network according to the basic period TS.
  • the basic period TS may be preset by the user, for example, 20 ms.
  • the first status message M1 transmitted in both directions is transmitted through each device connected in a clockwise or counterclockwise direction.
  • the first status message (M1) Any device that has received M1) once may discard the second received first status message M1.
  • the digital protection relay 100 and the plurality of devices may process a message using a high-availability seamless redundancy (HSR) protocol.
  • HSR high-availability seamless redundancy
  • the message transmitter 110 may transmit the first status message M1 while gradually increasing the transmission period of the first status message M1 from the minimum period.
  • the minimum period may be set by a user or may be set according to a communication specification of each device constituting the ring network.
  • the minimum period may be 2ms.
  • the message transmitter 110 may transmit the first status message M1 after 2 ms (T1), which is a minimum period from the time when the event occurs. Thereafter, the message transmitter 110 may continuously transmit the first status message M1 while gradually increasing the transmission period of the first status message M1 from the minimum period.
  • the message transmitter 110 may transmit the first status message M1 while linearly increasing the transmission period of the first status message M1.
  • the message transmitter 110 may transmit the first status message M1 at 4 ms (T2), which is twice the minimum period, and thereafter, the minimum period.
  • the first status message M1 may be transmitted in 6mns (T3) which is three times of, and then the first status message M1 may be transmitted in 8ms (T4), which is four times the minimum period.
  • the message transmitter 110 may transmit the first status message M1 while exponentially increasing the transmission period of the first status message M1.
  • the message transmitter 110 transmits the first status message at 4 ms (T2), which is a square value of the minimum period.
  • T2 4 ms
  • (M1) may be transmitted, and then the first state message (M1) may be transmitted at 8 ms (T3), which is the cube of the minimum period, and then the first state is at 16 ms (T4), which is the fourth square of the minimum period.
  • Message M1 can be sent.
  • the first status message M1 when an event occurs, the first status message M1 is transmitted according to the minimum period, and then the transmission period of the first status message M1 is gradually increased, thereby quickly sending event occurrence information to all devices connected to the ring network. Can be delivered.
  • the first status message M1 in which the transmission period gradually increases is a message used in an Ethernet structure, and is a mutual digital input and output signal between the digital protection relay 100 and the plurality of external devices. It may be a GOOSE message to send and receive messages.
  • the message transmitter 110 controls the transmission period to be gradually increased. When the increased transmission period exceeds the preset basic period TS, the message transmitter 110 may transmit the first status message M1 according to the basic period TS. have.
  • the transmission period may gradually increase from the minimum period within a range not exceeding the preset basic period TS.
  • the message transmitter 110 may set the transmission period of the first status message M1 to 2 ms, 4 ms, 6 ms, 8 ms, 10 ms,... Can be increased linearly, such as 20ms, 22ms. In this case, since 22 ms exceeds 20 ms, which is the basic period TS, the message transmitter 110 may determine the transmission period of the first status message M1 after the transmission period of the first status message M1 is controlled to 20 ms. The first status message M1 may be transmitted again according to the basic period TS (20 ms) without controlling to 22 ms.
  • the message transmitter 110 may exponentially increase the transmission period of the first status message M1 such as 2 ms, 4 ms, 8 ms, 16 ms, and 32 ms. At this time, since 32ms exceeds 20ms, which is the basic period TS, the message transmitter 110 determines the transmission period of the first status message M1 after the transmission period of the first status message M1 is controlled to 16ms. The first status message M1 may be transmitted again according to the basic period TS (20 ms) without controlling to 32 ms.
  • the transmission of the event occurrence information can be prevented from being delayed by controlling the maximum transmission period of the first status message M1 to the basic period TS.
  • the message receiver 120 may receive the second status message M2 transmitted from the plurality of devices from both directions of the ring network.
  • the second status message M2 may be a message corresponding to the first status message M1 described above.
  • the second status message M2 and the first status message M1 are classified according to whether they are a transmitted message or a received message, and their structure and function may be the same.
  • the first status message M1 may be a message transmitted from the digital protection relay 100 shown in FIG. 2, and the second status message M2 may be sent to the digital protection relay 100 shown in FIG. 2. It may be a received message.
  • the second status message M2 may include status information of the device that sent the message and source identification information of the message, and may be transmitted in a broadcast manner.
  • the plurality of devices constituting the ring network may transmit the second status message M2 in both directions of the ring network.
  • each of the plurality of devices may be the digital protection relay 100 of the present invention, whereby the plurality of devices may transmit their status messages in both directions of the ring network.
  • the second status message M2 may be delivered through a plurality of devices.
  • a second status message M2 sent from device 4 may be provided to digital protection relay 100 in a counterclockwise direction through device 3, device 2, and device 1.
  • the second status message M2 transmitted from the device 4 may be provided to the digital protective relay 100 in a clockwise direction through the device 5.
  • the message receiver 120 may thus receive the second status message M2 transmitted in both directions of the ring network.
  • the transmission period control unit 130 determines the identity of the second status message M2 and the first status message M1 received in both directions of the ring network, and according to the determination result, the transmission period of the first status message M1 is determined. Can be controlled.
  • the first status message M1 transmitted in the clockwise direction from the digital protection relay 100 may be transmitted clockwise through the devices 1 through 5 and may be received by the digital protection relay 100 again. .
  • the message receiver 120 may receive the first status message M1 provided through the device 5 as the second status message M2.
  • the first status message M1 and the second status message M2 are classified according to whether they are a transmitted message or a received message, the status message transmitted from the digital protection relay 100 is again digitally protected.
  • the first status message M1 and the second status message M2 may be the same message.
  • the transmission period controller 130 may determine whether the second status message M2 and the first status message M1 are the same message.
  • the transmission period controller 130 compares the source identification information of the second status message M2 with the source identification information of the first status message M1 and compares the second status message M2 with the first status message ( The identity of M1) can be determined.
  • the first and second status messages M1 and M2 may respectively include source identification information.
  • the source identification information of the first status message M1 may be identification information of the digital protection relay 100
  • the second status message M2 may be identification information of the digital protection relay 100 or identification information of a plurality of devices. Can be.
  • the transmission period control unit 130 matches the second status message M2 with the first status message M1.
  • the transmission period may be controlled by determining that the message is the same message.
  • the transmission period controller 130 controls the transmission period of the first status message M1 as the basic period TS. can do.
  • the transmission period of the first status message M1 may be controlled as the basic period TS without gradually increasing the transmission period of the first status message M1.
  • the comparison operation of the source identification information may be performed according to a transmission period.
  • the transmission period controller 130 may compare source identification information of the first status message M1 and the second status message M2 according to the currently set transmission period.
  • the transmission period controller 130 compares source identification information of the first status message M1 and the second status message M2 according to a current transmission period immediately before each transmission time of the first status message M1, According to the comparison result, the preset transmission period may be gradually increased or controlled as the basic period (TS).
  • TS basic period
  • the transmission period control unit 130 may set the transmission period by reflecting the comparison result of the source identification information each time the first status message M1 is transmitted.
  • the digital protection relay 100 displays the first status message M1 according to the basic period TS (eg, 20 ms). Can be sent in the
  • the digital protection relay 100 may transmit the first status message M1 while gradually increasing the transmission period of the first status message M1 from the minimum period (for example, 2 ms).
  • the digital protection relay 100 While transmitting the first status message M1 while gradually increasing the transmission period, if the first status message M1 transmitted by the digital protection relay 100 is received by the digital protection relay 100 again, the digital protection relay ( 100 may control the transmission period of the first status message M1 to a basic period TS (20 ms).
  • the digital protection relay 100 controls the transmission period of the first status message M1 to 2 ms and 4 ms, respectively, as shown in FIG. 5, when the first message is received by the digital protection relay 100, The digital protection relay 100 may no longer gradually control the transmission period of the first status message M1, but may fix the transmission period of the first status message M1 to the basic period 20 ms.
  • the transmission period of the first status message M1 is directly controlled to a basic period, thereby unnecessary. Message transmission can be reduced and thus the message load on the ring network can be reduced.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

Un relais de protection numérique selon un mode de réalisation de la présente invention est un relais de protection numérique connecté à une pluralité de dispositifs par l'intermédiaire d'un réseau en anneau, et comprend : une unité de transmission de message pour transmettre un premier message d'état dans les deux directions du réseau en anneau tout en augmentant progressivement une période de transmission du premier message d'état, à partir d'une période minimale ; une unité de réception de message pour recevoir, à partir des deux directions du réseau en anneau, un second message d'état transmis par la pluralité de dispositifs ; et une unité de commande de période de transmission pour déterminer si le second message d'état reçu et le premier message d'état sont identiques, et commander la période de transmission du premier message d'état en fonction d'un résultat de la détermination.
PCT/KR2018/016097 2018-02-28 2018-12-18 Relais de protection numérique Ceased WO2019168256A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0024492 2018-02-28
KR1020180024492A KR102086149B1 (ko) 2018-02-28 2018-02-28 디지털 보호 계전기

Publications (1)

Publication Number Publication Date
WO2019168256A1 true WO2019168256A1 (fr) 2019-09-06

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PCT/KR2018/016097 Ceased WO2019168256A1 (fr) 2018-02-28 2018-12-18 Relais de protection numérique

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KR (1) KR102086149B1 (fr)
WO (1) WO2019168256A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
JP7626364B2 (ja) * 2020-08-18 2025-02-04 株式会社デンソー 負荷駆動システム

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101044506B1 (ko) * 2010-03-08 2011-07-05 엘에스산전 주식회사 디지털 보호 계전기
KR20160059559A (ko) * 2014-11-18 2016-05-27 현대중공업 주식회사 디지털 보호 계전기
KR101621653B1 (ko) * 2015-03-10 2016-05-31 박윤수 양방향통신 기반 자동복구 전문가 시스템을 적용한 배전반 및 그의 동작 방법
US20160352096A1 (en) * 2014-02-24 2016-12-01 Maschinenfabrik Reinhausen Gmbh Power-network note, variable transformer and method of operating the node
KR101736933B1 (ko) * 2013-06-04 2017-05-17 엘에스산전 주식회사 차단기용 제어 유닛 및 그의 제어 방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100675741B1 (ko) * 2005-01-04 2007-01-30 명지대학교 산학협력단 이동형 소프트웨어를 사용한 보호계전 제어시스템 및 방법
JP2016192870A (ja) * 2015-03-31 2016-11-10 三菱電機株式会社 保護制御システム
JP2017022936A (ja) * 2015-07-14 2017-01-26 株式会社東芝 分散監視制御システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101044506B1 (ko) * 2010-03-08 2011-07-05 엘에스산전 주식회사 디지털 보호 계전기
KR101736933B1 (ko) * 2013-06-04 2017-05-17 엘에스산전 주식회사 차단기용 제어 유닛 및 그의 제어 방법
US20160352096A1 (en) * 2014-02-24 2016-12-01 Maschinenfabrik Reinhausen Gmbh Power-network note, variable transformer and method of operating the node
KR20160059559A (ko) * 2014-11-18 2016-05-27 현대중공업 주식회사 디지털 보호 계전기
KR101621653B1 (ko) * 2015-03-10 2016-05-31 박윤수 양방향통신 기반 자동복구 전문가 시스템을 적용한 배전반 및 그의 동작 방법

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KR20190103723A (ko) 2019-09-05
KR102086149B1 (ko) 2020-03-09

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