CN109660312A - A kind of transformer station process layer optical network structure and reconstructing method - Google Patents
A kind of transformer station process layer optical network structure and reconstructing method Download PDFInfo
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- CN109660312A CN109660312A CN201811609829.6A CN201811609829A CN109660312A CN 109660312 A CN109660312 A CN 109660312A CN 201811609829 A CN201811609829 A CN 201811609829A CN 109660312 A CN109660312 A CN 109660312A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0278—WDM optical network architectures
- H04J14/0286—WDM hierarchical architectures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention discloses a kind of transformer station process layer optical network structure, distribution node, access node, bay device, process-level network equipment correspond, distribution node includes wavelength division multiplexer and 2 optical cross-connects, and the two sides of the first optical cross-connect are separately connected multiplexing end and the access node of wavelength division multiplexer；The two sides of second optical cross-connect are separately connected the demultiplexing port of bay device and wavelength division multiplexer；Two optical cross-connects have a control port to be directly connected with wall smart machine, wall smart machine is through the second optical cross-connect control port, optical cross-connect connection status in distribution node is configured, thus the physical connection of building or reconstructed network.Such structure can realize the network structure configuration and reconstruct of transformer station process layer.Invention additionally discloses a kind of reconstructing methods of transformer station process layer optical network structure.
Description
Technical field
The invention belongs to technical field of power system communication, are related to electric power application optical communication network, in particular to a kind of intelligence
It can the configuration of Substation process-level optical network system structure.
Background technique
The construction of smart grid is the vital task of China's power automation development.Currently, the relay protection in substation
Just by conventional " directly adopting straight jump " mode, to " net is adopted net and jumped " development.Substation network based on optical communication technique has transmission
The advantages that performance is good, high reliablity, network favorable expandability, easily scalable.Has the intelligence based on the mutual multicasting technology of wavelength at present
Substation process-level network plan proposes, the physical isolation and multicast functionality of different business flow, but its network may be implemented
The flexibility of configuration and reconstruct is insufficient, limits its application, while in order to realize redundancy protecting and information sharing, to light source spectrum
Wide degree it is more demanding, corresponding node port number also requires as twice in the case of unprotect, it is not easy to realize.
Summary of the invention
The purpose of the present invention is to provide a kind of transformer station process layer optical network structure and reconstructing method, can be real
The network structure configuration and reconstruct of existing transformer station process layer.
In order to achieve the above objectives, solution of the invention is:
A kind of transformer station process layer optical network structure, station level, wall and process layer including sequential connection,
In, wall includes i bay device, and process layer includes i process-level network equipment, and i is natural number；Each bay device
It include protection equipment, measuring and controlling equipment, smart machine；
It further include i distribution node and i access node, distribution node, access node, bay device, process layer net
Network equipment corresponds, and distribution node includes wavelength division multiplexer and 2 optical cross-connects, the data of the first optical cross-connect
Port side connects the multiplexing end of wavelength division multiplexer, and the other side connects access node；The data port of second optical cross-connect
Side is connected with bay device, and the other side is connected with the demultiplexing port of wavelength division multiplexer；Two optical cross-connects have
One control port is directly connected with wall smart machine, and wall smart machine is through the second optical cross-connect control terminal
Mouthful, the optical cross-connect connection status in distribution node is configured, thus the physical connection of building or reconstructed network.
The data port number of above-mentioned first optical cross-connect is 2 × 3 or 2 × 4, and 2 port sides connect wavelength division multiplexer
It is multiplexed the side connection access node at end, 3 ports or 4 ports.
The data port number of above-mentioned second optical cross-connect is that m × n, m and n are positive integer, and m >=n+2；The port m
Side is connected with bay device, and n port side is connected with the demultiplexing port of wavelength division multiplexer.
Based on a kind of foregoing reconstructing method of transformer station process layer optical network structure, instructed according to station level
Or wall smart machine determines as a result, by bay device to distribution node inside optical path process-level network failure
The reconstruct of network is realized in control, realizes the intelligent reconstruction of process layer optical-fiber network.
During network structure configuration or resetting, wall smart machine, wall intelligence are sent instructions to by station level
Energy equipment is according to instruction, by the optical cross-connect control port in distribution node, to the optical cross connect in distribution node
Device connection status is configured, thus the physical connection of building or reconstructed network.
The connection status of wall smart machine 2 optical cross-connects of preservation and distribution node port and wall
Connection status between device port.
After adopting the above scheme, compared with the prior art, the invention has the following advantages:
(1) the existing process layer light network implementation based on the mutual multicast of wavelength is compared, which can not only keep
Optic communication quality-advantage, and can flexibly realize network structure configuration and reconstruct and Intelligent Protection Switching；
(2) the existing process layer light network implementation based on the mutual multicast of wavelength is compared, which can be with
Based on less wavelength resource, WDM port number and wavelength dependent devices and less redundant optical fiber, realize to process-level network
The protection of link, interval layer network device, Optical Distribution Node port etc..
Detailed description of the invention
Fig. 1 is process layer optical network structure schematic diagram proposed by the invention；
Fig. 2 is process layer optical-fiber network distribution node structure weight proposed by the invention in the case of process-level network link failure
Set schematic diagram；
Fig. 3 is process layer optical-fiber network distribution section proposed by the invention in the case of the wall network equipment failure for having redundancy
Point structure resets schematic diagram.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention and beneficial effect are described in detail.
As shown in Figure 1, the present invention provides a kind of transformer station process layer optical network structure, the station control including sequential connection
Layer, wall and process layer, wherein wall includes i bay device, and process layer includes i process-level network equipment, i
For natural number；Each bay device includes protection equipment, measuring and controlling equipment, smart machine, this is existing structure, no longer superfluous
It states.
Improvement of the invention is, further includes i distribution node and i access node, distribution node, access node,
Bay device, process-level network equipment correspond, and distribution node is by wavelength division multiplexer and 2 optical cross-connects (OXC)
Composition, one of optical cross-connect (OXC2) data port number be 2 × 3 or 2 × 4 (in figures up and down two sides), 2 ports
One flanks the multiplexing end of wavelength division multiplexer, and the side of 3 ports (or 4 ports) connects access node；Another optical cross-connect
(OXC1) data port side be connected with bay device, port number m, the other side of data port and wavelength division multiplexer
Demultiplexing port be connected, port number n, m and n is positive integer here, and m >=n+2；Two optical cross-connects have
One control port is directly connected with wall smart machine, wall smart machine through the optical cross-connect control port,
Optical cross-connect connection status in distribution node is configured, thus the physical connection of building or reconstructed network.
The present invention also provides a kind of reconstructing method of transformer station process layer optical network structure, according to station level instruction or
Wall smart machine is to the judgement result of process-level network failure, by bay device to Optical Distribution Node inside optical path
The reconstruct of network is realized in control, realizes intelligent protection to network failure and extensive using the line switching of two optical cross-connects
It is multiple, realize the intelligent reconstruction of process layer optical-fiber network.Specifically:
During network structure configuration or resetting, wall smart machine, wall intelligence are sent instructions to by station level
Can equipment according to instruction, by optical cross-connect control port in Optical Distribution Node, the light in Optical Distribution Node is intersected
Connector connection state is configured, thus the physical connection of building or reconstructed network；
In the case where network failure, wall smart machine according to process-level network failure judgement result, pass through light
The line switching of optical cross-connect control port triggering optical cross-connect in distribution node, realizes the intelligence to network failure
It can protect and restore.
In order to realize that, to the judgement of process layer connection status/failure, wall smart machine need to save cross-connect
Connection status between connection status and Optical Distribution Node port and bay device port.
Fig. 2 show the case where optical fiber link failure that distribution node and access node are connected in process-level network
Under, the schematic diagram of distribution node structure resetting.By modifying the connection status of 2 × 3OXC, make distribution node and access node it
Between the port OXC that is connect of normal optical fiber be connected with 2 ports of its other side, may be implemented to the extensive of network link failure
It is multiple.It is to be herein pointed out being attached as only used 3 optical fiber between two nodes in the program, can be realized to institute
There is the redundancy backup (2:1) of signal, greatly reduces required long-distance optical fiber compared to the scheme of fiber direct connection (needing > 12 optical fiber)
Quantity, simplify the connection and configuration during network construction.
Be illustrated in figure 3 connected in process layer optical-fiber network distribution node and bay device optical fiber it is (or coupled
Bay device or Optical Distribution Node port) failure when, distribution node structure resetting schematic diagram.There are the feelings of redundancy port
Under condition, by modifying the connection status of m × n OXC, connect normal optical fiber link between distribution node and bay device
Another side ports of OXC (being here 2 ') phase for being connect originally with failure optical fiber link of distribution node port (being here 3 ports)
Even, the recovery to above-mentioned network link failure or port failure may be implemented.It is to be herein pointed out wavelength needed for the program
Channel number is only the bay device number of types that need to be connected, and due to having used OXC, not needing increase wavelength resource can be real
Now to the redundancy protecting of above-mentioned fault type.
In summary, the invention discloses a kind of Substation process-level optical network structure and reconstructing method, process layer nets
Network equipment and bay device realized by intermediate optical node by the corresponding interconnection of group, the intermediate optical node include access node and
Distribution node, the access node are the optical node of process layer side, and the distribution node is the optical node of wall side, by having
The optical cross-connect and wavelength division multiplexer of state read out function form, according to station level instruction or wall smart machine to mistake
The judgement result of journey layer network failure, the weight for realizing network to the control of Optical Distribution Node inside optical path by bay device
Structure realizes the intelligent reconstruction of process layer optical-fiber network.The present invention compares currently existing scheme, not only optic communication can be kept quality
Gesture, and network structure configuration and reconstruct and Intelligent Protection Switching can be neatly realized, it can also keep occupying in the process
The minimum of wavelength resource, WDM port number and wavelength dependent devices.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention
Within.
Claims (6)
1. a kind of transformer station process layer optical network structure, station level, wall and process layer including sequential connection,
In, wall includes i bay device, and process layer includes i process-level network equipment, and i is natural number；Each bay device
It include protection equipment, measuring and controlling equipment, smart machine；It is characterized by:
It further include i distribution node and i access node, distribution node, access node, bay device, process-level network are set
Standby to correspond, distribution node includes wavelength division multiplexer and 2 optical cross-connects, the data port of the first optical cross-connect
Side connects the multiplexing end of wavelength division multiplexer, and the other side connects access node；The data port side of second optical cross-connect
It is connected with bay device, the other side is connected with the demultiplexing port of wavelength division multiplexer；Two optical cross-connects have one
Control port is directly connected with wall smart machine, and wall smart machine is right through the second optical cross-connect control port
Optical cross-connect connection status in distribution node is configured, thus the physical connection of building or reconstructed network.
2. a kind of transformer station process layer optical network structure as described in claim 1, it is characterised in that: first light is handed over
The data port number for pitching connector is 2 × 3 or 2 × 4, and 2 port sides connect the multiplexing end of wavelength division multiplexer, 3 ports or 4 ports
Side connects access node.
3. a kind of transformer station process layer optical network structure as described in claim 1, it is characterised in that: second light is handed over
It is positive integer that the data port number of fork connector, which is m × n, m and n, and m >=n+2；M port side is connected with bay device, n
Port side is connected with the demultiplexing port of wavelength division multiplexer.
4. based on a kind of reconstructing method of transformer station process layer optical network structure as described in claim 1, feature exists
In: according to station level instruction or wall smart machine to the judgement of process-level network failure as a result, passing through bay device pair
The reconstruct of network is realized in the control of optical path inside distribution node, realizes the intelligent reconstruction of process layer optical-fiber network.
5. reconstructing method as claimed in claim 4, it is characterised in that: during network structure configuration or resetting, controlled by station
Layer sends instructions to wall smart machine, and wall smart machine passes through the optical cross connect in distribution node according to instruction
Device control port configures the optical cross-connect connection status in distribution node, thus the object of building or reconstructed network
Reason connection.
6. reconstructing method as claimed in claim 4, it is characterised in that: wall smart machine saves 2 optical cross-connects
Connection status and distribution node port and bay device port between connection status.
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| CN201811609829.6A CN109660312A (en) | 2018-12-27 | 2018-12-27 | A kind of transformer station process layer optical network structure and reconstructing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115883414A (en) * | 2022-12-05 | 2023-03-31 | 南方电网科学研究院有限责任公司 | Network testing method, device, equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0620694A2 (en) * | 1993-04-16 | 1994-10-19 | Nec Corporation | Optical cross-connect system with space and wavelength division switching stages |
| CN1404254A (en) * | 2002-10-24 | 2003-03-19 | 上海交通大学 | Expandable multicasting light exchange structure with light-regulating shunt |
| CN105680945A (en) * | 2016-01-15 | 2016-06-15 | 东南大学 | Wave length mutual multicasting type process level optical network structure |
| CN106301665A (en) * | 2015-05-27 | 2017-01-04 | 中国电力科学研究院 | A kind of electric power application optical communication network structure |
-
2018
- 2018-12-27 CN CN201811609829.6A patent/CN109660312A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0620694A2 (en) * | 1993-04-16 | 1994-10-19 | Nec Corporation | Optical cross-connect system with space and wavelength division switching stages |
| CN1404254A (en) * | 2002-10-24 | 2003-03-19 | 上海交通大学 | Expandable multicasting light exchange structure with light-regulating shunt |
| CN106301665A (en) * | 2015-05-27 | 2017-01-04 | 中国电力科学研究院 | A kind of electric power application optical communication network structure |
| CN105680945A (en) * | 2016-01-15 | 2016-06-15 | 东南大学 | Wave length mutual multicasting type process level optical network structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115883414A (en) * | 2022-12-05 | 2023-03-31 | 南方电网科学研究院有限责任公司 | Network testing method, device, equipment and storage medium |
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Application publication date: 20190419 |