CN110867960B - Power supply recovery protection method suitable for distributed feeder automation power distribution terminal - Google Patents

Power supply recovery protection method suitable for distributed feeder automation power distribution terminal Download PDF

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Publication number
CN110867960B
CN110867960B CN201911120287.0A CN201911120287A CN110867960B CN 110867960 B CN110867960 B CN 110867960B CN 201911120287 A CN201911120287 A CN 201911120287A CN 110867960 B CN110867960 B CN 110867960B
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Prior art keywords
signal
ring main
main unit
switch controller
fault
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CN110867960A (en
Inventor
陈林
王建微
廖伟
刘红伟
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Zhuhai XJ Electric Co Ltd
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Zhuhai XJ Electric Co Ltd
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02Details
    • H02H3/06Details with automatic reconnection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/20Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location

Abstract

The invention relates to the field of power supply systems, and discloses a power supply recovery protection method suitable for a distributed feeder automation power distribution terminal. According to the invention, a plurality of switch controllers in the same ring main unit mutually transmit signals through a GOOSE protocol; signals are transmitted between adjacent ring main units through optical fiber channels; when a line has a fault, the ring main unit making the action transmits a signal of an action result to a next ring main unit and transmits the signal to an open loop point step by step or directly transmits the signal of the action result to the open loop point, the open loop point judges whether the signal of the action result is a fault isolation success signal and whether the signal is in a single-side voltage loss state, when two conditions are met, the open loop point is switched on, otherwise, the ring main unit is not switched on. According to the invention, signals are transmitted between the ring main units through the optical fiber channels, and the rapidity of GOOSE transmission in the ring main units is combined, so that the rapid-acting feeder automation is realized, the reliability of line protection of a power distribution end is improved, the action time of fault isolation is shortened, and the stability of signal transmission is improved.

Description

Power supply recovery protection method suitable for distributed feeder automation power distribution terminal
Technical Field
The invention relates to the field of power supply systems, in particular to a power supply recovery protection method suitable for a distributed feeder automation power distribution terminal.
Background
According to the current distribution network construction condition, the distribution network automation is realized by monitoring the operation condition of the distribution network by using an automation device or system, finding the fault of the distribution network in time and carrying out fault positioning, isolation and recovery on power supply of a non-fault area. The automatic fault treatment of the target feed-forward line mainly adopts a centralized mode and an in-situ mode.
Centralized feeder automation mode relies on the distribution main website to judge the fault area when breaking down with the help of communication means, through the cooperation of distribution terminal and distribution main website to keep apart the fault area through automatic remote control or manual mode, resume the regional power supply of non-trouble. Centralized feeder automation needs to be judged through a main station, action time is long, and recovery is slow.
The in-place feeder automation mode does not depend on the control of a power distribution master station, when a power distribution network fails, a fault area is isolated through mutual communication, protection cooperation or time sequence cooperation of power distribution terminals, power supply of a non-fault area is recovered, and a processing process and a result are reported. The current on-site feeder automation is mainly realized in a voltage time type and a self-adaptive comprehensive type, the two modes are matched by means of reclosing actions of an outlet breaker of a transformer substation, and the action time is longer.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a power supply recovery protection method suitable for a distributed feeder automation power distribution terminal, which can accelerate the fault recovery time.
According to the power supply recovery protection method applicable to the distributed feeder automation power distribution terminal in the embodiment of the first aspect of the invention, when a line fails, the position of the line fault point is judged, the corresponding switch controller in the ring main unit acts, and a signal of the action result is issued to the rest switch controllers in the same ring main unit through a GOOSE protocol; after the end switch controller in the ring main unit receives the signal issued by the GOOSE protocol, the end switch controller in the ring main unit transmits the signal of the action result to the next ring main unit through the optical fiber channel and transmits the signal of the action result to an open loop point step by step or directly transmits the signal of the action result to the open loop point; and when the signal of the action result is a fault isolation success signal and the open-loop point is in a single-side voltage loss state, closing the open-loop point, otherwise, not acting the open-loop point.
The power supply recovery protection method applicable to the distributed feeder automation power distribution terminal provided by the embodiment of the invention at least has the following beneficial effects: signals are transmitted between the ring main units through the optical fiber channels, and the rapidity of GOOSE protocol transmission between controllers in the ring main units is combined, so that the rapid-acting feeder automation is realized, the reliability of line protection of a power distribution end is improved, the action time of fault isolation is shortened, and the stability of signal transmission is improved; meanwhile, as the ring main units are communicated by adopting the optical fiber channels, the GOOSE topological graph is only needed to be configured for the switch controllers in the same ring main unit, thereby simplifying the procedure of communication configuration.
According to some embodiments of the present invention, GOOSE protocol transmission between switches in the ring main unit is based on IEC61850 protocol.
According to some embodiments of the invention, the signal of the action result comprises a fault isolation success signal or a switch rejection signal.
According to some embodiments of the present invention, after the ring main unit at the next stage receives the signal of the action result, the switch controller in the ring main unit issues the signal through the GOOSE protocol, and after the end switch controller in the ring main unit receives the signal issued by the GOOSE protocol, the end switch controller in the ring main unit transmits the signal of the action result to the ring main unit at the next stage or the ring opening point through the optical fiber channel.
According to some embodiments of the present invention, the switch controllers in the same ring main unit implement signal transmission of GOOSE protocol through the network switch.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flowchart of a power restoration protection method for a distributed feeder automation power distribution terminal according to an embodiment of the present invention;
FIG. 2 is a schematic view of a primary wiring employing the present invention;
FIG. 3 is a schematic diagram of the communication topology of FIG. 2;
FIG. 4 is a schematic illustration of the operation of the line after isolation of fault point K1 of FIG. 2;
FIG. 5 is a schematic illustration of the operation of the line after isolation of fault point K2 of FIG. 2;
FIG. 6 is a schematic illustration of the operation of the line after isolation of fault point K3 of FIG. 2;
FIG. 7 is a schematic illustration of the operation of the line after isolation of fault point K4 of FIG. 2;
fig. 8 is a schematic diagram of the line operation after isolation fault point K5 of fig. 2.
Reference numerals: the ring main unit 100.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, as a preferred embodiment, a power restoration protection method suitable for a distributed feeder automation power distribution terminal, when a line fails, a location of the line fault point is determined, a corresponding switch controller in a ring main unit 100 acts, and a signal of the action result is issued to the remaining switch controllers in the same ring main unit 100 through a GOOSE protocol; after the end switch controller in the ring main unit 100 receives the signal issued by the GOOSE protocol, and after the end switch controller in the ring main unit 100 receives the signal issued by the GOOSE protocol, the end switch controller in the ring main unit 100 transmits the signal of the action result to the next ring main unit 100 through the optical fiber channel and transmits the signal of the action result to the ring opening point step by step or directly transmits the signal of the action result to the ring opening point; and when the signal of the action result is a fault isolation success signal and the open-loop point is in a single-side voltage loss state, closing the open-loop point, otherwise, not acting the open-loop point.
The switch controller in the ring main unit 100 transmits signals through a GOOSE protocol, and the ring main units 100 transmit signals through optical fiber channels, so that the ring main unit 100 can transmit signals from one stage to one stage until the signals of action results are transmitted to an open loop point, rapid-action feeder automation is realized, the reliability of line protection of a power distribution end is improved, the action time of fault isolation is shortened, and the stability of signal transmission is improved; meanwhile, since the ring main units 100 communicate with each other through the optical fiber channels, the GOOSE topology diagram only needs to be configured for the switch controllers in the same ring main unit 100, thereby simplifying the procedure of communication configuration. If the ring main unit 100 adjacent to the open loop point does an action, the ring main unit 100 directly sends a signal of an action result to the open loop point.
In some embodiments of the present invention, GOOSE protocol transmission between switches in the ring main unit 100 is based on IEC61850 protocol. The GOOSE protocol is used for meeting the mechanism of the fast message requirement of the substation automation system. The method is mainly used for realizing information transmission among the multiple IEDs, and has high transmission success probability, wherein the transmission comprises the transmission of tripping and closing signal commands. The reliable transmission of real-time information such as switch positions, locking signals, tripping commands and the like is realized based on GOOSE network transmission instead of traditional hard wiring. The communication speed between the ring main units 100 is improved, so that the isolation of the fault section and the recovery of the non-fault section can be quickly realized without depending on a communication manager and a main station.
In some embodiments of the invention, the signal of the action result comprises a fault isolation success signal or a switch debounce signal. When a short-circuit fault occurs, the switch controller in the ring main unit 100 corresponding to the fault position can act to trip or refuse to trip, and according to the action result, the action is performed to send a fault isolation success signal or a switch rejection signal to the switch controller in the same ring main unit 100 through the GOOSE protocol, and then the terminal switch controller in the ring main unit 100 can rapidly transmit the switch rejection signal or the fault isolation success signal to the ring main unit 100 at the next stage, or directly transmit the switch rejection signal or the fault isolation success signal to the open-loop point. And when the open-loop point receives a switch tripping rejection signal or a short-circuit fault signal or a fault isolation success signal of an adjacent-side switch controller, the open-loop point prohibits switching on.
In some embodiments of the present invention, after the ring main unit 100 at the next stage receives the signal of the action result, the switch controller in the ring main unit 100 issues the signal through the GOOSE protocol, and after the switch controller at the end of the ring main unit 100 receives the signal issued by the GOOSE protocol, the switch controller at the end of the ring main unit 100 transmits the signal of the action result to the ring main unit 100 at the next stage or the ring opening point through the optical fiber channel.
In some embodiments of the present invention, the switch controller in the same ring main unit 100 implements GOOSE protocol signaling through the network switch.
A power restoration protection method suitable for a distributed feeder automation power distribution terminal according to an embodiment of the present invention is described in detail below with reference to fig. 2 to 8 in a specific embodiment. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.
Referring to fig. 2 and 3, the switch controllers G01-G04 are in the same ring main unit 100, the switch controllers G05-G08 are in the same ring main unit 100, the switch controller G09 is a switching point, and when a line normally runs, the substation outgoing line breakers CB1 and CB2 are in a switching-on state; the switch controllers G01-G08 are in a switch-on state; the switch controller G09 is in the open state; the switch controllers G10 to G12 are in a closed state. The switch controller G09 is assumed to be an open-loop point, and the fault point is K1 to K5, where the blocks of the switch controllers G01 to G09 in fig. 2 and 4 to 8 represent that the corresponding switch controller is in a closed state when there is a fill, and represent that the corresponding switch controller is in an open state when there is no fill. The following describes in detail the processing procedure of different fault points in connection with the present invention:
referring to fig. 2 and 4, when the fault point is K1, the circuit breaker CB1 is tripped by overcurrent, the switch controller G01 performs a trip action after detecting a loss of voltage, then the fault point K1 is isolated, the switch controller G01 generates a fault isolation success signal to the switch controllers G02 to G04 in the same cabinet through GOOSE, after the switch controller G04 receives the fault isolation success signal through GOOSE protocol, the switch controller G04 sends a fault isolation success signal to the switch controller G05 in the next ring main unit 100 through the optical fiber channel, the switch controller G05 sends a corresponding fault isolation success signal to the switch controller G08 through the GOOSE protocol, the switch controller G08 transmits the fault isolation success signal to the switch controller G09 through the optical fiber channel, meanwhile, when the switch controller G09 detects that the single side of the switch controller G09 loses voltage, the switch controller G09 realizes switch-on, and the circuit recovers non-fault power supply;
referring to fig. 2 and 5, when the fault point is K2, the switch controller G01 detects a short-circuit fault signal, and the switch controller G04 does not detect a short-circuit fault signal, the switch controller G01 sends a short-circuit fault signal to the switch controller G04 through the GOOSE protocol, and at the same time, the switch controller G01 and the switch controller G04 judge that the fault point is between the switch controller G01 and the switch controller G04, so that the switch controller G01 and the switch controller G04 trip, the fault point K2 is isolated, the switch controller G02 and the switch controller G03 do not act, the switch controller G04 sends a fault isolation success signal to the switch controller G05 through the optical fiber channel, the switch controller G05 sends a corresponding fault isolation success signal to the switch controller G08 through the GOOSE protocol interaction, the switch controller G08 transmits the fault isolation signal to the switch controller G09 through the optical fiber channel, meanwhile, when the switch controller G09 detects that the single side of the switch controller G09 loses voltage, the switch controller G09 realizes switch-on, and the circuit recovers non-fault power supply;
referring to fig. 2 and 6, when the fault point is K3, the switch controller G03 detects a short-circuit fault signal, and since the position of the switch controller G03 is at the feeder line, the switch controller G03 directly trips in an overcurrent manner, the fault point K3 is isolated and is sent to the switch controller G01 and the switch controller G04 respectively through the GOOSE protocol, the switch controller G01 and the switch controller G04 do not operate after receiving a fault isolation success signal of the switch controller G03, the fault isolation succeeds, and since the switch controller G09 is not in a single-side voltage loss state, the switch controller G09 does not operate a switch, referring to fig. 6;
referring to fig. 2 and 7, when the fault point is K4, the fault point is located between a switch controller G04 and a switch controller G05, the switch controller G04 and the switch controller G05 trip through an optical fiber differential protection action, the fault point K4 is isolated, the switch controller G05 sends a fault isolation success signal to the switch controller G08 through a GOOSE protocol to the ring main unit 100 where the switch controller G05 is located, the switch controller G08 sends a fault isolation success signal to the switch controller G09 through an optical fiber channel, and meanwhile the switch controller G09 detects that the voltage of its single side is lost, the switch controller G09 realizes switching on, and the line recovers non-fault power supply;
referring to fig. 2 and 8, when the fault point is K5, the fault point is located between the switch controller G08 and the switch controller G09, the switch controller G08 detects a short-circuit fault signal and makes a trip action, the fault point K5 is isolated, and at the same time, the switch controller G08 sends a fault isolation success signal to the switch controller G09 through an optical fiber channel, and the switch controller G09 is not switched on because the switch controller G08 is an adjacent switch controller of the switch controller G09.
In addition, when a fault point K1, a fault point K2, or a fault point K3 occurs, and a tripping rejection situation occurs for a switch controller that needs to perform a tripping action, the corresponding ring main unit 100 sends a switching tripping rejection signal to the switch controller G09, and at this time, the switch controller G09 does not perform a closing action.
By combining the embodiments, the invention realizes the automation of the fast-acting feeder by utilizing the advantages of the sensitive and fast action of the optical fiber differential protection and combining the rapidity of the GOOSE protocol transmission. Compared with other feeder automation schemes, the method has the advantages of high protection reliability, quick and sensitive action, stable communication and independence of a master station.
Meanwhile, by adopting the technical scheme of the invention, the ring main units 100 do not need to interact through the GOOSE protocol, that is, the switch controllers in the same ring main unit 100 only need to interact through the GOOSE protocol. And signals are transmitted between the ring main unit 100 and the ring main unit 100 through the optical fiber channel. Therefore, only the switch controllers in the same ring main unit 100 need to be configured when configuring the GOOSE topology, thereby simplifying the operation of configuring the communication modeling.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (5)

1. A power restoration protection method suitable for a distributed feeder automation power distribution terminal is characterized by comprising the following steps:
when a line has a fault, judging the position of the fault point of the line, making an action by a corresponding switch controller in the ring main unit, and issuing a signal of the action result to other switch controllers in the same ring main unit through a GOOSE protocol;
after the end switch controller in the ring main unit receives the signal issued by the GOOSE protocol, the end switch controller in the ring main unit transmits the signal of the action result to the next ring main unit through the optical fiber channel and transmits the signal of the action result to an open loop point step by step or directly transmits the signal of the action result to the open loop point;
and when the signal of the action result is a fault isolation success signal and the open-loop point is in a single-side voltage loss state, closing the open-loop point, otherwise, not acting the open-loop point.
2. The power restoration protection method for the distributed feeder automation power distribution terminal as recited in claim 1, further comprising: GOOSE protocol transmission among switches in the ring main unit is based on an IEC61850 protocol.
3. The power restoration protection method for the distributed feeder automation power distribution terminal as recited in claim 1, further comprising: the signal of the action result comprises a fault isolation success signal or a switch rejection signal.
4. The power restoration protection method for the distributed feeder automation power distribution terminal as recited in claim 1, further comprising: and after the switch controller at the tail end in the ring main unit receives the signal issued by the GOOSE protocol, the switch controller in the ring main unit transmits the signal of the action result to the next ring main unit or the switch point through an optical fiber channel.
5. The power restoration protection method for the distributed feeder automation power distribution terminal as recited in claim 4, wherein: and the switch controllers in the same ring main unit realize signal transmission of the GOOSE protocol through the network switch.
CN201911120287.0A 2019-11-15 2019-11-15 Power supply recovery protection method suitable for distributed feeder automation power distribution terminal Active CN110867960B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306956A (en) * 2011-09-14 2012-01-04 宁波市鄞州供电局 Feed line automation system
WO2015158561A1 (en) * 2014-04-17 2015-10-22 Abb Technology Ag Load restoration in a high or medium voltage substation
CN106253269A (en) * 2016-08-11 2016-12-21 国家电网公司 It is applied to the standby method and device of intelligent distribution type feeder automation service restoration
CN107800118A (en) * 2016-09-07 2018-03-13 国家电网公司 The optical fiber autonomous negotiating formula guard method of switching station's comprehensive intelligent terminal
CN108306264A (en) * 2018-02-14 2018-07-20 广西思维奇电力工程咨询有限公司 A kind of intelligent distributed feeder line fault of distribution network immediate processing method
CN108494088A (en) * 2018-03-16 2018-09-04 上海交通大学 Consider the intelligent distribution type feeder automation terminal of ad hoc network equipment state
CN109245071A (en) * 2018-11-12 2019-01-18 特变电工南京智能电气有限公司 A kind of intelligent distribution type feeder automation distribution system and control method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9819196B2 (en) * 2015-06-05 2017-11-14 I Shou University Power distribution system capable of automatic fault detection in a distributed manner and method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306956A (en) * 2011-09-14 2012-01-04 宁波市鄞州供电局 Feed line automation system
WO2015158561A1 (en) * 2014-04-17 2015-10-22 Abb Technology Ag Load restoration in a high or medium voltage substation
CN106253269A (en) * 2016-08-11 2016-12-21 国家电网公司 It is applied to the standby method and device of intelligent distribution type feeder automation service restoration
CN107800118A (en) * 2016-09-07 2018-03-13 国家电网公司 The optical fiber autonomous negotiating formula guard method of switching station's comprehensive intelligent terminal
CN108306264A (en) * 2018-02-14 2018-07-20 广西思维奇电力工程咨询有限公司 A kind of intelligent distributed feeder line fault of distribution network immediate processing method
CN108494088A (en) * 2018-03-16 2018-09-04 上海交通大学 Consider the intelligent distribution type feeder automation terminal of ad hoc network equipment state
CN109245071A (en) * 2018-11-12 2019-01-18 特变电工南京智能电气有限公司 A kind of intelligent distribution type feeder automation distribution system and control method

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