CN108923393A - The method of the station internal fault isolation for institute's overall power distribution terminal of standing - Google Patents
The method of the station internal fault isolation for institute's overall power distribution terminal of standing Download PDFInfo
- Publication number
- CN108923393A CN108923393A CN201810651183.1A CN201810651183A CN108923393A CN 108923393 A CN108923393 A CN 108923393A CN 201810651183 A CN201810651183 A CN 201810651183A CN 108923393 A CN108923393 A CN 108923393A
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- Prior art keywords
- module
- switch
- current
- outlet
- signal
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- 238000002955 isolation Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of methods of the station internal fault isolation of substation's overall power distribution terminal, include the following steps：（1）Utilize voltage and current signal in voltage and current acquisition module acquisition station；（2）Establish the incidence relation of the block signal check-in module of contact incoming switch and the block signal control check-out module of contact outlet switch；（3）When faulty generation, control module detects all fault-current signals from power supply point to fault point（4）Locking, which is issued, close to the block signal module of the contact outlet switch of fault point outputs signal；（5）The block signal check-in module of contact incoming switch is latched the outlet of oneself, and protection is failure to actuate；（6）The control outlet module for getting in touch with outlet switch carries out protection act outlet；Failure is isolated.The present invention can be carried out in situ the isolation and power supply of failure, and communication dependency degree is low, and structure is simple.
Description
Technical field：
The present invention relates to a kind of methods of station internal fault isolation, more particularly to a kind of station internal fault of institute's overall power distribution terminal of standing
The method of isolation, belongs to field of feeder automation.
Background technique：
With the rapid development of market economy, the continuous improvement of living standards of the people, people get over the degree of dependence of electrical energy demands
Come bigger, skyscraper especially in city and the user for belonging to I and II supply standard, accounting are gradually expanding, city
Function increasingly tends to reach perfection and complicates, and each large and medium-sized urban electric power department uses mostly in 10kV distribution network construction
The primary power distribution structure of more power supply ring network power supplies, this distribution structure power supply reliability is higher, and running and comparing is flexible, but cascades
Switch it is more, it is differential that protection classification can not pull open the time, so distribution structure is only that feeder line cannot be achieved is automatic by relay protection
Change function, suitable electrical power distribution automatization system need to be cooperated, the continuity and reliability of power supply just may be implemented, it is existing at present
Electrical power distribution automatization system must all rely on communication and distribution main website or son although the troubleshooting of loop grid can be completed
It stands, system is huge, installs and safeguards and is relatively difficult, it is difficult to which duplication and popularization, the requirement to operation maintenance personnel are also relatively high.
Summary of the invention：
The technical problem to be solved by the present invention is to：Overcome the deficiencies of the prior art and provide it is a kind of can make it is nearest from fault point
Switch trip, the station internal fault for reducing power supply interrupted district, reducing power off time, the station institute overall power distribution terminal for improving power supply reliability
The method of isolation.
The present invention is adopted the technical scheme that in order to solve the technical problem：
A method of the station internal fault for institute's overall power distribution terminal of standing is isolated, and is included the following steps：
（1）Route voltage and current signal is acquired using voltage and current acquisition module, and collected voltage and current signal is transmitted
To control module；
（2）The block signal check-in module of contact incoming switch is established by electric connecting relation using control module and is got in touch with out
The incidence relation of the block signal control check-out module of wiretap；
（3）When faulty generation, the voltage and current acquisition module of switchgear is able to detect that from power supply point to fault point
All fault-current signals, and send this signal to control module；
（4）At this point, the block signal check-out module close to the contact outlet switch of fault point issues to be latched and outputs signal, and by this
Block signal sends control module to through check-in module；
（5）The block signal check-out module that the block signal check-in module of contact incoming switch receives contact outlet switch issues
Signal is outputed in locking, is latched the control of export of oneself；
（6）The control outlet module for getting in touch with outlet switch carries out protection act outlet, and failure is isolated.
The control module determines switch for contact incoming switch or contact outlet switch by directional element.
Voltage transformer and current transformer, the model of voltage transformer are provided on the voltage and current acquisition module
TR1102-2C, the model TR0102-2B of current transformer.
The substation's normal information and fault message that receive are transmitted to backstage by communication module by the control module
Terminal.
Positive beneficial effect of the invention is：
1, the present invention combine switching station typical grid structure, by the interval type of switching station be divided into interconnection switch, outlet switch,
And bus connection switch, terminal determine contact incoming switch, contact outlet switch by directional element, are electrically saved by block signal
Point establishes contact incoming switch, gets in touch with the incidence relation between outlet switch, bus connection switch, according to contact outlet switch locking connection
The logic of network incoming switch, incoming switch and outlet switch are not necessarily to Graded coordination, same time definite value are shared, so that ring network power supply
The time electrode difference protection of three-stage cascade switching station may be implemented under framework, reduce power failure area.
2, the present invention, which solves the problems, such as in the case of complex network structures that guard time is differential, to separate, interconnection switch,
Contact outlet switch can share same time definite value, while the switch trip nearest from fault point, reduce power supply interrupted district, and reduction stops
The electric time improves power supply reliability.
3, the present invention can be carried out in situ the isolation and power supply of failure, and communication dependency degree is low, and structure is simple, and reproducibility is strong.
Detailed description of the invention：
Fig. 1 is the connection schematic diagram of station internal fault signal processing and block signal processing of the invention；
Fig. 2 is the connection schematic diagram of embodiment in the present invention.
Specific embodiment：
The present invention will be further explained and explanation for 1, Fig. 2 and specific embodiment with reference to the accompanying drawing：
Embodiment：A method of the station internal fault for institute's overall power distribution terminal of standing is isolated, and is included the following steps：
（1）Using voltage and current signal in voltage and current acquisition module acquisition station, and collected voltage and current signal is transmitted
To control module；
（2）The block signal check-in module and connection of contact incoming switch 8DL are established by electric connecting relation using control module
The incidence relation of the block signal control check-out module of network outlet switch 7DL；
（3）When faulty generation, switchgear（7DL and 8DL）Voltage and current acquisition module be able to detect that from power supply point
Control module is sent to all fault-current signals of fault point, and by this signal；
（4）At this point, letter is outputed in the block signal control check-out module sending locking close to the contact outlet switch 7DL of fault point
Number, and signal is outputed into this locking and sends control module to through check-in module；
（5）The block signal check-in module of contact incoming switch 8DL receives the block signal control inspection of contact outlet switch 7DL
After signal is outputed in module sending locking out, it is latched the control of export of oneself；
（6）The check-out module for getting in touch with outlet switch 7DL carries out protection act outlet, and failure is isolated.
Control module determines switch for contact incoming switch 8DL or contact outlet switch 7DL by directional element.
Voltage transformer and current transformer, the model of voltage transformer are provided on voltage and current acquisition module
TR1102-2C, the model TR0102-2B of current transformer.
The substation's normal information and fault message that receive are transmitted to background terminal by communication module by control module.
When work, the control module in terminal passes through voltage transformer and current transformer collection voltages electric current letter respectively
Number, block signal check-in module information is acquired, control block signal controls check-out module signal, when different switchtypes（Connection
Network incoming switch and contact outlet switch）It detects current signal, judged by control module and controls contact outlet switch sending
Signal is outputed in locking, and contact incoming switch detects that block signal inputs, is latched the control of export of oneself, and then makes to get in touch with outlet
Switch outlet movement, and get in touch with incoming switch and do not export movement, terminal realizes that contact outlet switch is protected in station by logical operation
Shield locking contact incoming switch, locking contact incoming relay-protection movement make the nearest contact outlet switch movement of distance fault point
Fault Isolation is carried out, scope of power outage is reduced.
The above is only preferred embodiments of the invention, and it is intended that the present invention is limited in any way, all
It is any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, still falls within
In the protection scope of technical solution of the present invention.
Claims (4)
1. a kind of method of the station internal fault isolation of station institute's overall power distribution terminal, includes the following steps：
（1）Route voltage and current signal is acquired using voltage and current acquisition module, and collected voltage and current signal is transmitted
To control module；
（2）The block signal check-in module of contact incoming switch is established by electric connecting relation using control module and is got in touch with out
The incidence relation of the block signal control check-out module of wiretap；
（3）When faulty generation, the voltage and current acquisition module of switchgear is able to detect that from power supply point to fault point
All fault-current signals, and send this signal to control module；
（4）At this point, the block signal check-out module close to the contact outlet switch of fault point issues to be latched and outputs signal, and by this
Block signal sends control module to through check-in module；
（5）The block signal check-out module that the block signal check-in module of contact incoming switch receives contact outlet switch issues
Signal is outputed in locking, is latched the control of export of oneself；
（6）The control outlet module for getting in touch with outlet switch carries out protection act outlet, and failure is isolated.
2. the method for the station internal fault isolation of station institute's overall power distribution terminal according to claim 1, it is characterized in that：The control
Molding block determines switch for contact incoming switch or contact outlet switch by current direction element.
3. the method for the station internal fault isolation of station institute's overall power distribution terminal according to claim 1, it is characterized in that：The electricity
Voltage transformer and current transformer, the model TR1102-2C of voltage transformer, electric current are provided on current voltage acquisition module
The model TR0102-2B of mutual inductor.
4. the method for the station internal fault isolation of station institute's overall power distribution terminal according to claim 1, it is characterized in that：The control
The power distribution station received institute's normal information and fault message are transmitted to background terminal by communication module by molding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651183.1A CN108923393B (en) | 2018-06-22 | 2018-06-22 | Method for isolating faults in station of station integrated power distribution terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651183.1A CN108923393B (en) | 2018-06-22 | 2018-06-22 | Method for isolating faults in station of station integrated power distribution terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108923393A true CN108923393A (en) | 2018-11-30 |
| CN108923393B CN108923393B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810651183.1A Active CN108923393B (en) | 2018-06-22 | 2018-06-22 | Method for isolating faults in station of station integrated power distribution terminal |
Country Status (1)
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| CN (1) | CN108923393B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698554A (en) * | 2019-01-03 | 2019-04-30 | 国网山东省电力公司平邑县供电公司 | Substation equipment Dispatching monitor and control system and method |
| CN109802490A (en) * | 2019-02-21 | 2019-05-24 | 国网山东省电力公司临沂供电公司 | A kind of intelligent platform of substation's electrification fortune inspection |
Citations (4)
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| US6055145A (en) * | 1990-12-28 | 2000-04-25 | Eaton Corporation | Overcurrent protection device with visual indicators for trip and programming functions |
| CN103078304A (en) * | 2013-01-25 | 2013-05-01 | 上海山源电子电气科技发展有限公司 | Protection method of power distribution network for coal mine |
| CN103746356A (en) * | 2012-12-21 | 2014-04-23 | 中铁电气化勘测设计研究院有限公司 | Digital communication current protection technology based on IEC 61850 protocol |
| CN105375635A (en) * | 2015-12-02 | 2016-03-02 | 国家电网公司 | Method and system of intelligent management of power distribution network cascading switching stations |
-
2018
- 2018-06-22 CN CN201810651183.1A patent/CN108923393B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6055145A (en) * | 1990-12-28 | 2000-04-25 | Eaton Corporation | Overcurrent protection device with visual indicators for trip and programming functions |
| CN103746356A (en) * | 2012-12-21 | 2014-04-23 | 中铁电气化勘测设计研究院有限公司 | Digital communication current protection technology based on IEC 61850 protocol |
| CN103078304A (en) * | 2013-01-25 | 2013-05-01 | 上海山源电子电气科技发展有限公司 | Protection method of power distribution network for coal mine |
| CN105375635A (en) * | 2015-12-02 | 2016-03-02 | 国家电网公司 | Method and system of intelligent management of power distribution network cascading switching stations |
Non-Patent Citations (1)
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| 许丹等: "煤矿井下6kV供电***防越级跳闸方案研究", 《煤炭工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698554A (en) * | 2019-01-03 | 2019-04-30 | 国网山东省电力公司平邑县供电公司 | Substation equipment Dispatching monitor and control system and method |
| CN109802490A (en) * | 2019-02-21 | 2019-05-24 | 国网山东省电力公司临沂供电公司 | A kind of intelligent platform of substation's electrification fortune inspection |
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| CN108923393B (en) | 2024-02-02 |
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