CN108616165A - A kind of feeder terminal system based on distribution network system protection - Google Patents
A kind of feeder terminal system based on distribution network system protection Download PDFInfo
- Publication number
- CN108616165A CN108616165A CN201810442281.4A CN201810442281A CN108616165A CN 108616165 A CN108616165 A CN 108616165A CN 201810442281 A CN201810442281 A CN 201810442281A CN 108616165 A CN108616165 A CN 108616165A
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- CN
- China
- Prior art keywords
- optical
- optical modem
- modem
- protection
- frame
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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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention discloses a kind of feeder terminal systems based on distribution network system protection, including data acquisition and supervisor control SCADA, protection module and more than two optical modems；Described includes that data acquisition is connected with supervisor control SCADA with protection module and optical modem; the moving communication function of being provided by optical modem exchanges data with external monitoring systems; optical network management is carried out by the network management communication function that optical modem provides; the protection communication function provided by optical modem is established with adjacent ca bin FTU and is communicated to connect; when a failure occurs; protection module carries out network reconfiguration by built-in breaker isolated fault region.
Description
Technical field
The present invention relates to a kind of feeder terminal systems based on distribution network system protection.
Background technology
Ca bin FTU is the infrastructure device that feeder automation is implemented, and is located at basal layer.As domestic distribution is automatic
The extensive use of change system realizes that the distribution terminal technology of data acquisition and distant place control is also gradually ripe.Using protected mode
Realize that power distribution automation has the advantages that fast failure isolation, this requires block switch or looped network cabinet wire to switch must be using disconnected
Road device.Realize that distribution protection also achieves more achievement in research using communication port, the key that this kind of technology is realized is to obtain
The malfunction of adjacent protection location, therefore, the selection of communication mode are most important.
Currently, it is point-to-point logical generally to need dedicated optic fiber channel to realize using the power distribution automation scheme that protected mode is completed
Letter will exponentially increase the cost of communication network in this way.Point pair without the scheme of designated lane there is no realization truly
Point failure information is transmitted, and only when being communicated with supervisory control and data acqui sition system, timesharing utilizes communication port, this is to call duration time
All have an impact with the reliability of protection.
Invention content
In view of the deficiencies of the prior art, the present invention provides it is a kind of based on distribution network system protection feeder terminal system,
Including data acquisition and supervisor control SCADA (Supervisory Control And Data Acquisition), guarantor
Protect module and more than two optical modems；
Described includes that data acquisition is connected with supervisor control SCADA with protection module and optical modem, is led to
The moving communication function of crossing optical modem offer exchanges data with external monitoring systems, is provided by optical modem
Network management communication function carries out optical network management, the protection communication function provided by optical modem and adjacent line feed terminals
Unit F TU establishes communication connection, and when a failure occurs, protection module is carried out by built-in breaker isolated fault region
Network reconfiguration.
The optical modem is compound optical modem, including line coding and control module, opto-electronic conversion
Module, asynchronous data interface circuit, alarm output circuit, network management control circuit and power module；
The optical modem includes west to, east orientation, south orientation, north orientation totally four pairs of optical interfaces, East and West direction and north-south
Physical light Interface design can increase at module when needing at any time；
Four sets of channel coding-decoders are provided inside optical modem, correspond to four optical interface directions respectively.
The information frame structure of the optical modem is configured：It adds in a data bit Ex to information frame, it is single
Position is that 1 bit completes the exchange of level signal for carrying level state mark.
After the optical modem receives level flag, to prevent shake frame level, 2 or 8 are taken to take 5 using 3
Mode output contact signal.
Level transmission performance is as follows in the optical modem：
It is divided into 9.4 μ s between the reason design of frame delivery time；
Frame transmission between optical modem is autonomous, often passes through an optical modem, channel encoded frame is all
It can regenerate, faulty this optical modem that do not influence of other optical modems regenerates frame.
The optical modem can also organize ingredient in addition to having the function of the common two-way optical modem
Branch network, polycyclic tangent network, Star Network, reciprocally negotiate after main website is exited because of failure, between extension station and automatically select out one
A extension station upgrades to main website.
Allow, by remote control, to complete to exchange adjustment between optical modem main website and extension station, in communication failure
In the case of, when switching channel between main website, extension station, data switch break time less than 100ms.
Advantageous effect：Present system borrows light multiplexing skill on the basis of feeder system is protected and realizes power distribution automation
The basic thought of art is passed communication function and level (i.e. Reflector) in optical modem using optical-fiber communication channel
Transmission function separates, and the frame transmission between optical modem is autonomous, often passes through an optical modem, channel encoded frame
Will regenerate, other stations are faulty will not influence our station regenerate frame.Meanwhile ca bin FTU's is logical
Telecommunication function is unaffected.Ca bin FTU completes fault detect, isolation and network reconfiguration using the fault message exchanged.
Optical modem only increases level position in coding, does not increase hardware cost additionally.
Description of the drawings
The present invention is done with reference to the accompanying drawings and detailed description and is further illustrated, it is of the invention above-mentioned or
Otherwise advantage will become apparent.
Fig. 1 is system structure of the invention figure.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention provides a kind of feeder terminal system based on distribution network system protection, including data are adopted
Collection and supervisor control SCADA (Supervisory Control And Data Acquisition), protection module and two
A above optical modem；
Described includes that data acquisition is connected with supervisor control SCADA with protection module and optical modem, is led to
The moving communication function of crossing optical modem offer exchanges data with external monitoring systems, is provided by optical modem
Network management communication function carries out optical network management, the protection communication function provided by optical modem and adjacent line feed terminals
Unit F TU establishes communication connection, and when a failure occurs, protection module is carried out by built-in breaker isolated fault region
Network reconfiguration.
The optical modem is compound optical modem, including line coding and control module, opto-electronic conversion
Module, asynchronous data interface circuit, alarm output circuit, network management control circuit and power module；
The optical modem includes west to, east orientation, south orientation, north orientation totally four pairs of optical interfaces, East and West direction and north-south
Physical light Interface design can increase at module when needing at any time；
Four sets of channel coding-decoders are provided inside optical modem, correspond to four optical interface directions respectively.
The information frame structure of the optical modem is configured：It adds in a data bit Ex to information frame, it is single
Position is that 1 bit completes the exchange of level signal for carrying level state mark.
After the optical modem receives level flag, to prevent shake frame level, 2 or 8 are taken to take 5 using 3
Mode output contact signal.
Level transmission performance is as follows in the optical modem：
It is divided into 9.4 μ s between the reason design of frame delivery time；
Frame transmission between optical modem is autonomous, often passes through an optical modem, channel encoded frame is all
It can regenerate, faulty this optical modem that do not influence of other optical modems regenerates frame.
The optical modem can also organize ingredient in addition to having the function of the common two-way optical modem
Branch network, polycyclic tangent network, Star Network, reciprocally negotiate after main website is exited because of failure, between extension station and automatically select out one
A extension station upgrades to main website.
Allow, by remote control, to complete to exchange adjustment between optical modem main website and extension station, in communication failure
In the case of, when switching channel between main website, extension station, data switch break time less than 100ms.
The present invention provides a kind of feeder terminal systems based on distribution network system protection, implement the technical solution
There are many method and approach, the above is only a preferred embodiment of the present invention, it is noted that for the common of the art
For technical staff, various improvements and modifications may be made without departing from the principle of the present invention, these are improved and profit
Decorations also should be regarded as protection scope of the present invention.The available prior art of each component part being not known in the present embodiment is subject to reality
It is existing.
Claims (7)
1. a kind of feeder terminal system based on distribution network system protection, which is characterized in that acquired including data and monitor control
System SCADA, protection module and more than two optical modems；
Described includes that data acquisition is connected with supervisor control SCADA with protection module and optical modem, passes through light
The moving communication function that modem provides exchanges data with external monitoring systems, the webmaster provided by optical modem
Communication function carries out optical network management, the protection communication function and adjacent ca bin provided by optical modem
FTU establishes communication connection, and when a failure occurs, protection module carries out network by built-in breaker isolated fault region
Reconstruct.
2. system according to claim 1, which is characterized in that the optical modem demodulates for compound light modulation
Device, including line coding and control module, photoelectric conversion module, asynchronous data interface circuit, alarm output circuit, network management control
Circuit and power module；
The optical modem includes west to, east orientation, south orientation, north orientation totally four pairs of optical interfaces, the physics of East and West direction and north-south
Optical interface is designed to module, can increase at any time when needing；
Four sets of channel coding-decoders are provided inside optical modem, correspond to four optical interface directions respectively.
3. system according to claim 2, which is characterized in that set to the information frame structure of the optical modem
It sets：It adds in a data bit Ex to information frame, unit is that 1 bit completes level signal for carrying level state mark
It exchanges.
4. system according to claim 3, which is characterized in that after the optical modem receives level flag, be
Prevent shake frame level, the output contact signal in such a way that 3 take 2 or 8 take 5.
5. system according to claim 4, which is characterized in that level transmission performance is as follows in the optical modem：
It is divided into 9.4 μ s between the reason design of frame delivery time；
Frame transmission between optical modem is autonomous, often passes through an optical modem, channel encoded frame can all weigh
Newly-generated, faulty this optical modem that do not influence of other optical modems regenerates frame.
6. system according to claim 5, which is characterized in that the optical modem is removed with common two-way described
Outside the function of optical modem, branching networks, polycyclic tangent network, Star Network can also be formed, in main website because failure is moved back
It is reciprocally negotiated after going out, between extension station and automatically selects out an extension station and upgrade to main website.
7. system according to claim 6, which is characterized in that allow, by remote control, to complete optical modem master
It stands and exchanges adjustment between extension station, under communication failure condition, when switching channel between main website, extension station, between data switching
The disconnected time is less than 100ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442281.4A CN108616165A (en) | 2018-05-10 | 2018-05-10 | A kind of feeder terminal system based on distribution network system protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442281.4A CN108616165A (en) | 2018-05-10 | 2018-05-10 | A kind of feeder terminal system based on distribution network system protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108616165A true CN108616165A (en) | 2018-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810442281.4A Pending CN108616165A (en) | 2018-05-10 | 2018-05-10 | A kind of feeder terminal system based on distribution network system protection |
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| Country | Link |
|---|---|
| CN (1) | CN108616165A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207278A (en) * | 2007-07-18 | 2008-06-25 | 珠海市伊特高科技有限公司 | Feed line automatization terminal |
| CN204761159U (en) * | 2015-06-08 | 2015-11-11 | 国网山东龙口市供电公司 | Distribution network automation communication system |
-
2018
- 2018-05-10 CN CN201810442281.4A patent/CN108616165A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207278A (en) * | 2007-07-18 | 2008-06-25 | 珠海市伊特高科技有限公司 | Feed line automatization terminal |
| CN204761159U (en) * | 2015-06-08 | 2015-11-11 | 国网山东龙口市供电公司 | Distribution network automation communication system |
Non-Patent Citations (1)
| Title |
|---|
| 周念成等: ""基于配电网系统保护的馈线终端"", 《电力系统自动化》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181002 |
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| RJ01 | Rejection of invention patent application after publication |