CN106532664A - Power network protection system - Google Patents
Power network protection system Download PDFInfo
- Publication number
- CN106532664A CN106532664A CN201611178634.1A CN201611178634A CN106532664A CN 106532664 A CN106532664 A CN 106532664A CN 201611178634 A CN201611178634 A CN 201611178634A CN 106532664 A CN106532664 A CN 106532664A
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- Prior art keywords
- protection
- protection device
- network
- intelligent terminal
- data
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- 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.)
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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
- H02H7/262—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
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- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to a power network protection system. The power network protection system comprises a protection device, an intelligent terminal and a network protection server, wherein the intelligent terminal and the network protection server are respectively connected with the protection device through a network, the intelligent terminal is used for acquiring running condition data in real time, uploading the acquired data to the protection device and simultaneously receiving and executing a control command issued from the protection device, the protection device is used for collecting real-time data uploaded by the intelligent terminal and completing differential protection of a protected region, meanwhile, the protection device is used for uploading the collected data to the network protection server and receiving and executing the control command issued from the network protection server, the network protection server is used for collecting the data uploaded by the protection device, issuing a corresponding control command to the protection device according to real-time change of a network topology and completing automatic adjustment on a fixed value. By the power network protection system, a fault can be rapidly eliminated, the protection fixed value is automatically adjusted, and intelligent setting is achieved.
Description
Technical field
The present invention relates to a kind of protection system of electric power networks, especially a kind of fast network protection system, belongs to relay
Resist technology field.
Background technology
Power system is in operation, in fact it could happen that various failures and irregular operating state.It is most common while and most endangering
The failure of danger is various types of short circuits, including phase fault and ground short circuit etc..Furthermore, it is also possible to transmission line of electricity occurs break
Line, turn-to-turn short circuit of the same phase winding of electric rotating machine, transformer etc., and the complexity event combined by above-mentioned several failures
Barrier.And when in power system, the normal work of electrical equipment is destroyed, but do not break down, such case belongs to abnormal
Working condition, such as overload and power system oscillation etc..
When there is irregular operating state and failure in power system, may all cause systematic failures, it could even be possible to making
Damage into personal injury and electrical equipment.To prevent systematic failures from expanding, it is ensured that non-faulting part remains to reliably power, and ties up
Hold the stability of Operation of Electric Systems, it is desirable to selectively cut off fault element rapidly.The time of excision failure sometimes requires that short
To a few tenths of to a few percent second, only could be realized using protective relaying device.
Traditional system of relay protection is configured according to single protected element, based on local metrical information and
A small amount of area information, the object of protection is single electrical equipment, does not have unified digital source, does not have unified data lattice
Formula, also no data is shared, and relaying configuration is complicated, adjust and definite value between coordinate difficult, when power system is broken down, lack
, easily there is respective successive relay trip in weary overall co-ordination, causes fault spread, destruction system stability, is unfavorable for quickly cutting off failure.
Meanwhile, traditional system of relay protection is powered to non-faulting zone-transfer and is drawn in protection excision faulty equipment
During the power flow transfer for rising, protect definite value to be difficult in adapt to the change of the method for operation, be unfavorable for the power supply in fast quick-recovery non-faulting region.
And, traditional system of relay protection is not done to harvester and communicator and is optimized, and repeats to configure, and group screen is more, accounts for
Ground area is larger, and secondary circuit is complicated, and maintenance workload is big.
The content of the invention
Present invention solves the technical problem that being：Propose that one kind completes multiple transformer station's regional networks simultaneously using computer network
The fast network protection system of network protection, it is possible to achieve quickly cut off failure, adjust automatically protection definite value and intelligence and adjust.
In order to solve above-mentioned technical problem, technical scheme proposed by the present invention is：A kind of electric power networks protection system, including
Protection device and the respectively intelligent terminal and network protection server with the protection device by network linking；The intelligence
Terminal is used for Real-time Collection operating condition data, and the data for collecting are uploaded to the protection device, while receiving and holding
The control command that the row protection device is issued；The protection device is used for the real time data for collecting intelligent terminal upload, according to
The data variation for collecting issues corresponding control command to related intelligent terminal, completes the differential protection of protected area, while
The data collected are uploaded to the network protection server by the protection device, and are received and performed the network protection clothes
The control command that business device is issued；The network protection server is used for the data for collecting protection device upload, and is opened up according to network
The real-time change flutterred, issues corresponding control command to protection device, completes the adjust automatically of definite value.
The protection system of the present invention is configured according to the protected element in region, has unified digital source and unified data lattice
Formula, by data sharing, unified configuration, when power system is broken down, by overall co-ordination, coordination, is conducive to bad
System stability and the power supply in quick excision failure and fast quick-recovery non-faulting region, maintenance workload are little, it is possible to achieve quickly cut
Except failure, adjust automatically protection definite value and intelligence are adjusted.
Preferably, the intelligent terminal and protection device are linked by SDH looped networks, and the protection device and network protection take
Business device is linked by EPA.
Preferably, the intelligent terminal is included for completing circuit intelligent terminal and the guarantor of intersite line real time information sampling
Shield subnet, the protection subnet receive and perform institute for the real time data gathered in subnet is uploaded to the protection device
The control command that protection device is issued is stated, the network protection in standing is completed.
Preferably, the protection subnet completes the network protection in station using differential protection.
Preferably, the real time information of the intelligent terminal collection includes the shape of voltage, electric current, switching value and communication apparatus
State.
Specific embodiment
Embodiment
The electric power networks protection system of the present embodiment, including protection device and respectively with the protection device pass through network
The intelligent terminal and network protection server of link；The intelligent terminal is used for Real-time Collection operating condition data, and will collection
To data be uploaded to the protection device, while receiving and performing the control command that the protection device is issued；The protection
Device is used for the real time data for collecting intelligent terminal upload, issues corresponding control command to correlation according to the data variation for collecting
Intelligent terminal, completes the differential protection of protected area, while the data collected are uploaded to the net by the protection device
Network protects server, and receives and perform the control command that the network protection server is issued；The network protection server
For collecting the data of protection device upload, and according to the real-time change of network topology, corresponding control command is issued to protection
Device, completes the adjust automatically of definite value.
Intelligent terminal described in the present embodiment and protection device are linked by SDH looped networks, and the protection device and network are protected
Shield server is linked by EPA.
Intelligent terminal described in the present embodiment is included for completing the circuit intelligent terminal of intersite line real time information sampling
With protection subnet, the protection subnet received and held for the real time data gathered in subnet is uploaded to the protection device
The control command that the row protection device is issued, completes the network protection in standing.
Protect subnet that the network protection in station is completed using differential protection described in the present embodiment.
Preferably, the real time information of the intelligent terminal collection includes the state of voltage, electric current, switching value and communication apparatus
The present invention is not limited to the concrete technical scheme described in above-described embodiment, and the technical scheme that all employing equivalents are formed is equal
For the protection domain of application claims.
Claims (5)
1. a kind of electric power networks protection system, it is characterised in that:Pass through including protection device and respectively with the protection device
The intelligent terminal and network protection server of network linking；The intelligent terminal is used for Real-time Collection operating condition data, and will
The data for collecting are uploaded to the protection device, while receiving and performing the control command that the protection device is issued；It is described
Protection device is used for the real time data for collecting intelligent terminal upload, issues corresponding control command to phase according to the data variation for collecting
The intelligent terminal of pass, completes the differential protection of protected area, while the data collected are uploaded to institute by the protection device
Network protection server is stated, and is received and is performed the control command that the network protection server is issued；The network protection clothes
Business device is used for the data for collecting protection device upload, and according to the real-time change of network topology, issues corresponding control command and arrive
Protection device, completes the adjust automatically of definite value.
2. electric power networks protection system is united according to claim 1, it is characterised in that：The intelligent terminal and protection device are logical
The link of SDH looped networks is crossed, the protection device and network protection server are linked by EPA.
3. electric power networks protection system according to claim 1, it is characterised in that：The intelligent terminal is included for completing station
Between circuit real time information sampling circuit intelligent terminal and protection subnet, the protection subnet is for real-time by what is gathered in subnet
Data upload to the protection device, receive and perform the control command that the protection device is issued, and the network completed in standing is protected
Shield.
4. electric power networks protection system according to claim 3, it is characterised in that：The protection subnet is complete using differential protection
Into the network protection in station.
5. electric power networks protection system according to claim 3, it is characterised in that：The real time information of the intelligent terminal collection
Including the state of voltage, electric current, switching value and communication apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178634.1A CN106532664A (en) | 2016-12-19 | 2016-12-19 | Power network protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178634.1A CN106532664A (en) | 2016-12-19 | 2016-12-19 | Power network protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106532664A true CN106532664A (en) | 2017-03-22 |
Family
ID=58339608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611178634.1A Pending CN106532664A (en) | 2016-12-19 | 2016-12-19 | Power network protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106532664A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409442A (en) * | 2008-11-25 | 2009-04-15 | 中国南方电网有限责任公司 | Rapid line backup protection method with reliable selection based on wide area measuring system |
| CN102684173A (en) * | 2012-04-05 | 2012-09-19 | 凯里供电局 | Quick network electric power relay protection system |
| EP3062410A1 (en) * | 2015-02-27 | 2016-08-31 | General Electric Technology GmbH | A protection apparatus |
-
2016
- 2016-12-19 CN CN201611178634.1A patent/CN106532664A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409442A (en) * | 2008-11-25 | 2009-04-15 | 中国南方电网有限责任公司 | Rapid line backup protection method with reliable selection based on wide area measuring system |
| CN102684173A (en) * | 2012-04-05 | 2012-09-19 | 凯里供电局 | Quick network electric power relay protection system |
| EP3062410A1 (en) * | 2015-02-27 | 2016-08-31 | General Electric Technology GmbH | A protection apparatus |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170322 |