CN107947962A - A kind of DC grid communication system and the means of communication - Google Patents
A kind of DC grid communication system and the means of communication Download PDFInfo
- Publication number
- CN107947962A CN107947962A CN201710981550.XA CN201710981550A CN107947962A CN 107947962 A CN107947962 A CN 107947962A CN 201710981550 A CN201710981550 A CN 201710981550A CN 107947962 A CN107947962 A CN 107947962A
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- control device
- grid
- current conversion
- conversion station
- data
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- 238000004891 communication Methods 0.000 title claims abstract description 66
- 238000006243 chemical reaction Methods 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 239000013307 optical fiber Substances 0.000 claims abstract description 4
- 230000009977 dual effect Effects 0.000 claims description 16
- 238000001727 in vivo Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- 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
-
- H02J13/0013—
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Small-Scale Networks (AREA)
Abstract
The present invention discloses a kind of DC grid communication system, the DC grid includes DC grid control device and N number of current conversion station control device, the communication system includes n bar transmission channels, one end of n bar transmission channels is arranged at DC grid control device, the other end connects each current conversion station control device respectively, wherein, n≤N；The transmission channel can use optical fiber, be used for transmission the data of required exchange, and current conversion station control device is only communicated and is connected with DC grid control device, and the data of required exchange between current conversion station control device, are forwarded to by DC grid control device.Such a communication system achievees the purpose that to reduce communication and bandwidth resource consumption, is suitable for the access of other current conversion stations of later stage by being designed communication station.Invention additionally discloses a kind of DC grid means of communication.
Description
Technical field
The invention belongs to electric system technical field of direct current power transmission, more particularly to a kind of DC grid communication system and communication
Method.
Background technology
With the progress and development of DC techniques, DC grid arises.Compared to existing multi-terminal HVDC transmission work
Journey, the control of DC grid are more complicated.In addition to the original current conversion station control device of each current conversion station, add to direct current
Power grid total tune and the DC grid control device of control.And deposited between DC grid control device and current conversion station control device
Information exchange is being needed such as control variable, parameter, definite value.
Conventional multi-terminal HVDC transmission engineering, in communication system design, using point-to- point communication mode, i.e. each two is changed
All communicated between stream stand control equipment between configuration station, it is when control device uses duplicate system retrofit, the information of main preparation system is same
When send.Such configuration is applied in DC grid, undoubtedly adds communication resources between substantial amounts of station.And the letter of main preparation system
Breath is all sent, and be also consumes substantial amounts of bandwidth resources, is both wasted cost, by the delay for being likely to result in communication.In future
In DC grid, current conversion station is gradually extended and built, can greatly inconvenience using this communication system.
In order to realize that DC grid reliably communicates and be easy to the extension in later stage, it is necessary to using the communication for being adapted to DC grid
System, achievees the purpose that to ensure to save communication resources while communication need, the access for increasing current conversion station for the later stage has also been created
Sharp condition.
The content of the invention
The purpose of the present invention, is to provide a kind of DC grid communication system and the means of communication, it passes through communicating station
It is designed, achievees the purpose that to reduce communication and bandwidth resource consumption, be suitable for the access of other current conversion stations of later stage.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of DC grid communication system, the DC grid include DC grid control device and N number of change of current stand control
Equipment, the communication system include n bar transmission channels, and one end of n bar transmission channels is arranged at DC grid control device, separately
One end connects each current conversion station control device respectively, wherein, n≤N；The transmission channel is used for transmission the data of required exchange, changes
Stream stand control equipment is only communicated and is connected with DC grid control device, the number of required exchange between current conversion station control device
According to being forwarded to by DC grid control device.
When above-mentioned DC grid control device or current conversion station control device use dual redundant configuration, DC grid control
Carried out data transmission between equipment and current conversion station control device using active-standby switch mode.
The particular content of above-mentioned active-standby switch mode is：Sending side switching equipment is by the duty system in dual equipment
The switching equipment that data sending is configured to receiving side control device, then sent data to double at the same time by receiving side switching equipment
Change control device again.
When above-mentioned current conversion station uses the bipolar mode of connection, also communicated comprising pole control device, pole control equipment room configuration interpolar,
Using active-standby switch mode.
The particular content for the active-standby switch mode that the communication of above-mentioned interpolar uses is：Sending side switching equipment is by dual equipment
In duty system the switching equipment that is configured to receiving side control device of data sending, then by receiving side switching equipment by number
According to transmission at the same time to dual control device.
Above-mentioned active-standby switch mode can be realized by the way that active-standby switch device is separately configured, or, active-standby switch mode is existed
Realized in any set of master/slave device.
Above-mentioned transmission channel uses optical fiber.
A kind of DC grid means of communication, between DC grid control device and all or part of current conversion station control device
Transmission channel is set, transmission channel, DC grid control device and each change of current stand control are not provided between current conversion station control device
The required data exchanged are transmitted by transmission channel between equipment；The data of required exchange between current conversion station control device, by straight
Galvanic electricity network control control equipment is forwarded to by the transmission channel between DC grid control device and current conversion station control device.
When above-mentioned DC grid control device or current conversion station control device use dual redundant configuration, DC grid control
Carried out data transmission between equipment and current conversion station control device using active-standby switch mode.
The particular content of above-mentioned active-standby switch mode is：Sending side switching equipment is by the duty system in dual equipment
The switching equipment that data sending is configured to receiving side control device, then sent data to double at the same time by receiving side switching equipment
Change control device again.
After using the above scheme, beneficial effects of the present invention are：
(1) a kind of DC grid communication system provided by the invention and the means of communication, only in DC grid control device and
Current conversion station control device, does not configure communication between current conversion station control device, reduces the demand and quantity of communication resources；
(2) a kind of DC grid communication system provided by the invention and the means of communication, between standing and interpolar communication is using active and standby
Switching mode, only sends the data of duty system, reduces data volume, is conducive to better profit from limited bandwidth, shortens logical
The delay of news；
(3) a kind of DC grid communication system provided by the invention and the means of communication, communication configuration is relatively simple, newly-built to change
Stream stand erectly connect with DC grid stood between communicate, be easy to the extension of DC grid；
(4) a kind of DC grid communication system provided by the invention and the means of communication, it is simple in structure, reliability is high, can have
Effect ensures the communication between the control device in DC grid.
Brief description of the drawings
Fig. 1 is communication system schematic diagram between station；
Fig. 2 is interpolar communication system schematic diagram；
Fig. 3 is through communicating schematic diagram between active-standby switch device station；
Fig. 4 is to communicate schematic diagram through active-standby switch device interpolar；
Fig. 5 is to communicate schematic diagram between active-standby switch mode configures the station inside equipment；
Fig. 6 is that the interpolar that active-standby switch mode is configured inside equipment communicates schematic diagram.
Embodiment
Below with reference to drawings and the specific embodiments, technical scheme is described in detail.
The present invention provides a kind of DC grid means of communication, in DC grid control device and all or part of current conversion station control
Transmission channel is set between control equipment, is not provided with transmission channel between current conversion station control device, DC grid control device with it is each
The required data exchanged are transmitted by transmission channel between current conversion station control device；And required exchange between current conversion station control device
Data, by DC grid control device by the transmission channel between DC grid control device and current conversion station control device into
Row forwarding.
As shown in Figure 1, the present invention also provides a kind of DC grid communication system, wherein, DC grid includes DC grid
Control device and some current conversion station control devices；The communication system is to be changed in DC grid control device with all or part of
Communicated between stream stand control equipment between configuration station, by optical fiber as transmission channel be used for transmission needed for the data that exchange, for
For the current conversion station control device communicated between DC grid control device between non-configuration station, its by the control program of itself into
Row control, can not be according to the instruction action of DC grid control device.Do not communicated between current conversion station control device between configuration station, only
Communicated and be connected with DC grid control device.The data of required exchange between current conversion station control device, by DC grid
Control device is forwarded to by being communicated between the station between DC grid control device and current conversion station control device.
The specialties such as AC network scheduling are using main website and the structure of substation, and only main website is on substation transmitting order to lower levels or substation
Send state not by main website, the signal between some substations mutually to be transmitted to main website, so do not only It is not necessary to, and
And be difficult to realize, the mechanism and strategy of AC system are not suitable for DC engineering.And DC engineering between station because mutually transmit
Data volume is huge, and real-time is high, therefore all can be by the way of transmission is connected directly, i.e., victim way resource obtains data biography
Defeated stability.Communication system according to the present invention, using the communication of DC grid control device and current conversion station control device, i.e.,
Data between each current conversion station control device can be swapped, on technical standpoint and effect for be all qualitative leap.
Fig. 2 is interpolar communication system schematic diagram.When current conversion station uses the bipolar mode of connection, the pole control device of current conversion station
Between into row information interaction.
Communication and interpolar communicate schematic diagram between station when Fig. 3 and Fig. 4 respectively employs active-standby switch mode.Using active and standby
During switching mode, the equipment of dual accesses active-standby switch device at the same time, and between distinct device, active and standby by each self-configuring is cut
Changing device is attached and communicates.Switching device goes out the data sending of attendant device, is received in receiving side by switching device,
And connected master/slave device is distributed at the same time.
The data of two complete equipments on duty and spare can be all transmitted by usual communication apparatus, and data volume is huge, to logical
News device causes very big pressure, and congestion is caused to channel and bandwidth, and by the selection of switching device, only by signal on duty
Data are sent, and do not send the data of stand-by equipment, so as to reduce the data volume in passage, ensure data transfer real-time and
Reliability.
Fig. 5 and Fig. 6 is respectively communication and interpolar communication schematic diagram between station when active-standby switch mode is configured inside equipment.
Active-standby switch device can need not be separately configured under which, wherein another complete equipment can will be connected to by a set of equipment, by quilt
The equipment of connection realize active-standby switch be followed by by with send data.Usually, between standing or interpolar communication can also configure active and standby lead to
Road, therefore can configure active-standby switch in dual equipment.
Above example is merely illustrative of the invention's technical idea, it is impossible to protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any change done on the basis of technical solution, each falls within the scope of the present invention
Within.
Claims (10)
1. a kind of DC grid communication system, the DC grid includes DC grid control device and N number of change of current stand control is set
It is standby；It is characterized in that：The communication system includes n bar transmission channels, and one end of n bar transmission channels is arranged on DC grid and controls
At equipment, the other end connects each current conversion station control device respectively, wherein, n≤N；The transmission channel is used for transmission required exchange
Data, current conversion station control device only communicated and is connected with DC grid control device, institute between current conversion station control device
The data that need to be exchanged, are forwarded to by DC grid control device.
A kind of 2. DC grid communication system as claimed in claim 1, it is characterised in that：The DC grid control device or
When current conversion station control device uses dual redundant configuration, using master between DC grid control device and current conversion station control device
Standby switching mode carries out data transmission.
A kind of 3. DC grid communication system as claimed in claim 2, it is characterised in that：The active-standby switch mode it is specific
Content is：Sending side switching equipment is configured the data sending of the duty system in dual equipment to receiving side control device
Switching equipment, then data are sent to dual control device at the same time by receiving side switching equipment.
A kind of 4. DC grid communication system as claimed in claim 1, it is characterised in that：The current conversion station uses bipolar wiring
During mode, also comprising pole control device, pole control equipment room configuration interpolar communication, using active-standby switch mode.
A kind of 5. DC grid communication system as claimed in claim 4, it is characterised in that：The interpolar communication uses active and standby
The particular content of switching mode is：Sending side switching equipment is by the data sending of the duty system in dual equipment to receiving side
The switching equipment that control device is configured, then sent data to dual control device at the same time by receiving side switching equipment.
A kind of 6. DC grid communication system as described in claim 2 or 4, it is characterised in that：The active-standby switch mode is led to
Cross and the realization of active-standby switch device is separately configured, or, active-standby switch mode is realized in any set of master/slave device.
A kind of 7. DC grid communication system as claimed in claim 4, it is characterised in that：The transmission channel uses optical fiber.
A kind of 8. DC grid means of communication, it is characterised in that：In DC grid control device and all or part of current conversion station control
Transmission channel is set between control equipment, is not provided with transmission channel between current conversion station control device, DC grid control device with it is each
The required data exchanged are transmitted by transmission channel between current conversion station control device；Required exchange between current conversion station control device
Data, are carried out by DC grid control device by the transmission channel between DC grid control device and current conversion station control device
Forwarding.
A kind of 9. DC grid means of communication as claimed in claim 8, it is characterised in that：The DC grid control device or
When current conversion station control device uses dual redundant configuration, using master between DC grid control device and current conversion station control device
Standby switching mode carries out data transmission.
A kind of 10. DC grid means of communication as claimed in claim 9, it is characterised in that：The tool of the active-standby switch mode
Holding in vivo is：Sending side switching equipment is matched somebody with somebody the data sending of the duty system in dual equipment to receiving side control device
The switching equipment put, then sent data to dual control device at the same time by receiving side switching equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981550.XA CN107947962A (en) | 2017-10-20 | 2017-10-20 | A kind of DC grid communication system and the means of communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981550.XA CN107947962A (en) | 2017-10-20 | 2017-10-20 | A kind of DC grid communication system and the means of communication |
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| CN107947962A true CN107947962A (en) | 2018-04-20 |
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|---|---|---|---|
| CN201710981550.XA Pending CN107947962A (en) | 2017-10-20 | 2017-10-20 | A kind of DC grid communication system and the means of communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086211A (en) * | 2019-05-06 | 2019-08-02 | 国家电网公司东北分部 | High frequency centralized control method suitable for extensive AC-DC hybrid power grid |
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| CN207283269U (en) * | 2017-10-20 | 2018-04-27 | 南京南瑞继保电气有限公司 | A kind of DC grid communication system |
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2017
- 2017-10-20 CN CN201710981550.XA patent/CN107947962A/en active Pending
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| CN106655073A (en) * | 2016-11-07 | 2017-05-10 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Converter station pole control system inter-electrode and inter-station communication redundancy apparatus and inter-electrode and inter-station communication method |
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Application publication date: 20180420 |