CN106300300A - A kind of redundancy communication method for DC control and protection system - Google Patents
A kind of redundancy communication method for DC control and protection system Download PDFInfo
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- CN106300300A CN106300300A CN201610884349.5A CN201610884349A CN106300300A CN 106300300 A CN106300300 A CN 106300300A CN 201610884349 A CN201610884349 A CN 201610884349A CN 106300300 A CN106300300 A CN 106300300A
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- redundancy
- processing unit
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- duplex
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Classifications
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
-
- 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
- H02H7/268—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 for dc 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of redundancy communication method for DC control and protection system; including A) each protection device in DC control and protection system is respectively provided with redundancy duplex processing unit, exchange data by inner high speed data/address bus between each redundancy duplex processing unit；B) each redundancy duplex processing unit is attached with external redundancy dual pathways physical link the most respectively；C) communication processing unit in each redundancy duplex processing unit receives the data in the outer redundancy dual pathways of its correspondence, and forwards the data to another communication processing unit on its place redundancy duplex processing unit by inner high speed data/address bus；D) each redundancy duplex processing unit all can the independent process twin-channel data of external redundancy, it is achieved be mutually redundant backup.The present invention improves communication redundant reliability, simplifies communication system design, the multiple communication applications occasion between each protection device, has a good application prospect.
Description
Technical field
The present invention relates to technical field of direct current power transmission, be specifically related to a kind of redundancy communication for DC control and protection system
Method.
Background technology
HVDC transmission system has that transmission capacity is big, distance is remote, the advantages such as low is lost, and is to realize energy global optimization
The important channel of configuration.DC control and protection system is the core component of extra-high voltage direct-current transmission engineering, and it mainly includes that pole is controlled
Main frame processed, pole protected host, valve control main frame, alternating current-direct current filter protection main frame etc., wherein, pole controls main frame and is responsible for power and electricity
Pressure, electric current control etc.；Pole protected host is mainly responsible for commutation failure protection, differential overcurrent protection, valve short circuit protection etc..Direct current is defeated
When electrical engineering is properly functioning, between each host apparatus in DC control and protection system, real-time, interactive data harmonization is needed to work,
Ensure the stable operation of DC control and protection system primary equipment.Therefore, in DC control and protection system between each host apparatus
Need could be improved the reliability of communication by redundancy communication method, due to, the host apparatus in DC control and protection system leads to
Communication interface is many, needs, in the case of outside redundant channel is limited, to study the main frame in a kind of new DC control and protection system
The device redundancey means of communication, are the problems being currently needed for solving.
Summary of the invention
The problem that it is an object of the invention to overcome existing DC control and protection system external redundant passage limited.The present invention
The redundancy communication method for DC control and protection system, improve communication redundant reliability, simplify communication system design, be used for
Multiple communication applications occasion between each protection device in DC control and protection system, has a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of redundancy communication method for DC control and protection system, it is characterised in that: comprise the following steps,
Step (A), is respectively provided with redundancy duplex processing unit by each protection device in DC control and protection system, and each redundancy is double
Data are exchanged by inner high speed data/address bus between communication processing unit；
Step (B), each redundancy duplex processing unit is attached with external redundancy dual pathways physical link the most respectively；
Step (C), the communication processing unit in each redundancy duplex processing unit receives in the outer redundancy dual pathways of its correspondence
Data, and forward the data to another communication on its place redundancy duplex processing unit by inner high speed data/address bus
Processing unit；
Step (D), each redundancy duplex processing unit all can the independent process twin-channel data of external redundancy, it is achieved be mutually redundant
Backup.
Aforesaid a kind of redundancy communication method for DC control and protection system, it is characterised in that: step (A) each redundancy
Duplex processing unit is independent on hardware, the most standby, and by portion's high-speed data between each redundancy duplex processing unit
Bus connects.
Aforesaid a kind of redundancy communication method for DC control and protection system, it is characterised in that: step (B), each superfluous
Remaining duplex processing unit is attached with external redundancy dual pathways physical link the most respectively, is embodied in each superfluous
The first communication processing unit physically first external communication passage twin-channel with outer redundancy of remaining duplex processing unit is connected；
Second communication processing unit of each redundancy duplex processing unit physically second external communication twin-channel with outer redundancy leads to
Road is connected.
Aforesaid a kind of redundancy communication method for DC control and protection system, it is characterised in that: step (C), each superfluous
Communication processing unit in remaining duplex processing unit receives the data in the outer redundancy dual pathways of its correspondence, and by internal high
Speed data bus forwards the data to another communication processing unit of its place redundancy duplex processing unit, is embodied in
First communication processing unit of each redundancy duplex processing unit receives the twin-channel first external communication passage of external redundancy
On data, and forwarded the data to the second Communication processing of this redundancy duplex processing unit by inner high speed data/address bus
Unit；Second communication processing unit of each redundancy duplex processing unit receives twin-channel second external communication of external redundancy
Data on passage, and the first communication of this redundancy duplex processing unit is forwarded the data to by inner high speed data/address bus
Processing unit.
The invention has the beneficial effects as follows: the redundancy communication method for DC control and protection system of the present invention, improve logical
News redundant reliability, simplifies communication system design, multiple communication between each protection device in DC control and protection system
Application scenario, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is the system block diagram of redundancy communication method one embodiment for DC control and protection system of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is further illustrated.
The redundancy communication method for DC control and protection system of the present invention, comprises the following steps,
Step (A), is respectively provided with redundancy duplex processing unit by each protection device in DC control and protection system, and each redundancy is double
Exchanging data by inner high speed data/address bus between communication processing unit, each redundancy duplex processing unit is only on hardware
Vertical, the most standby, and connected by portion's high speed data bus between each redundancy duplex processing unit；
Step (B), each redundancy duplex processing unit is attached with external redundancy dual pathways physical link the most respectively,
As it is shown in figure 1, be embodied in the first of each redundancy duplex processing unit (herein referring to protection device A or protection device B)
On communication processing unit physics 1 and the first external communication of the outer redundancy dual pathways (herein referring to the passage between protection device A, B)
Passage 1 is connected；Second communication processing unit 2 of each redundancy duplex processing unit physically twin-channel with outer redundancy second
External communication passage 2 is connected；
Step (C), the communication processing unit in each redundancy duplex processing unit receives in the outer redundancy dual pathways of its correspondence
Data, and forward the data to another communication on its place redundancy duplex processing unit by inner high speed data/address bus
Processing unit, as it is shown in figure 1, be embodied in each redundancy duplex processing unit ((to herein refer to protection device A or protection dress
Put B) the first communication processing unit 1 receive the first of the external redundancy dual pathways (herein referring to the passage between protection device A, B)
Data on external communication passage 1, and forward the data to this redundancy duplex processing unit by inner high speed data/address bus
The second communication processing unit 2；Each redundancy duplex processing unit (second of (herein referring to protection device A or protection device B)
Communication processing unit 2 receives the second external communication of the external redundancy dual pathways (herein referring to the passage between protection device A, B) and leads to
Data on road 2, and the first communication of this redundancy duplex processing unit is forwarded the data to by inner high speed data/address bus
Processing unit 1；For improving the real-time that communication data forwards, communication data forwards and PLD FPGA can be used to enter
Row automatically processes, it is not necessary to software intervention, after the FPGA communication data to receiving on each passage carries out completeness check, directly leads to
Crossing inner high speed data/address bus and forward data, forward after comparing software receipt data check again, FPGA directly forwards real-time
High；
Step (D), each redundancy duplex processing unit all can the independent process twin-channel data of external redundancy, it is achieved be mutually redundant
Backup, as it is shown in figure 1, be embodied in and in the case of not increasing access road, each communication processing unit all can be independent
Process the twin-channel data of external redundancy, in the outside dual pathways under normal circumstances, the first communication processing unit 1 and the second mailing address
Double-channel data all can be processed by reason unit 2；Under the first external communication passage 1 failure condition, the first Communication processing
Second external communication passage 2 data all can be processed by unit 1 and the second communication processing unit 2；At the second external communication
Under passage 2 failure condition, the first communication processing unit 1 and the second communication processing unit 2 all can be to the first external communication passages 1
Data process；Under the first communication processing unit 1 failure condition, the second communication processing unit 2 can be outside logical to second
News passage 2 data process；Under the second communication processing unit 2 failure condition, the first communication processing unit 1 can be to first
External communication passage 1 data process.Therefore, for case above, what each protection device all can ensure that Communication processing can
By property.
In sum, the redundancy communication method for DC control and protection system of the present invention, improves communication redundancy reliable
Property, simplify communication system design, multiple communication applications occasion between each protection device in DC control and protection system, tool
There is good application prospect.
The ultimate principle of the present invention, principal character and advantage have more than been shown and described.The technical staff of the industry should
Understanding, the present invention is not restricted to the described embodiments, and the simply explanation present invention's described in above-described embodiment and description is former
Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements
Both fall within scope of the claimed invention.Claimed scope is by appending claims and equivalent circle thereof
Fixed.
Claims (4)
1. the redundancy communication method for DC control and protection system, it is characterised in that: comprise the following steps,
Step (A), is respectively provided with redundancy duplex processing unit by each protection device in DC control and protection system, and each redundancy is double
Data are exchanged by inner high speed data/address bus between communication processing unit；
Step (B), each redundancy duplex processing unit is attached with external redundancy dual pathways physical link the most respectively；
Step (C), the communication processing unit in each redundancy duplex processing unit receives in the outer redundancy dual pathways of its correspondence
Data, and forward the data to another communication on its place redundancy duplex processing unit by inner high speed data/address bus
Processing unit；
Step (D), each redundancy duplex processing unit all can the independent process twin-channel data of external redundancy, it is achieved be mutually redundant
Backup.
A kind of redundancy communication method for DC control and protection system the most according to claim 1, it is characterised in that: step
Suddenly (A) each redundancy duplex processing unit is independent on hardware, the most standby, and passes through between each redundancy duplex processing unit
Portion's high speed data bus connects.
A kind of redundancy communication method for DC control and protection system the most according to claim 1, it is characterised in that: step
Suddenly (B), each redundancy duplex processing unit is attached with external redundancy dual pathways physical link the most respectively, concrete table
The first communication processing unit physically first outside twin-channel with outer redundancy being now each redundancy duplex processing unit is logical
News passage is connected；Second communication processing unit of each redundancy duplex processing unit physically twin-channel with outer redundancy second
External communication passage is connected.
A kind of redundancy communication method for DC control and protection system the most according to claim 1, it is characterised in that: step
Suddenly (C), the communication processing unit in each redundancy duplex processing unit receives the data in the outer redundancy dual pathways of its correspondence, and
Another communication processing unit of its place redundancy duplex processing unit is forwarded the data to by inner high speed data/address bus,
The first communication processing unit being embodied in each redundancy duplex processing unit receives outside external redundancy twin-channel first
Data on portion's communication channel, and the of this redundancy duplex processing unit is forwarded the data to by inner high speed data/address bus
Two communication processing units；Second communication processing unit of each redundancy duplex processing unit receives external redundancy twin-channel the
Data on two external communication passages, and forward the data to this redundancy duplex processing unit by inner high speed data/address bus
The first communication processing unit.
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| CN201610884349.5A CN106300300A (en) | 2016-10-11 | 2016-10-11 | A kind of redundancy communication method for DC control and protection system |
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| CN201610884349.5A CN106300300A (en) | 2016-10-11 | 2016-10-11 | A kind of redundancy communication method for DC control and protection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365926A (en) * | 2018-01-17 | 2018-08-03 | 北京和利时智能技术有限公司 | A kind of novel redundant system |
| CN111585858A (en) * | 2020-04-28 | 2020-08-25 | 国电南京自动化股份有限公司 | Multi-input multi-output matrix soft bus communication method and system |
| CN113590171A (en) * | 2021-03-25 | 2021-11-02 | 南京南瑞继保电气有限公司 | Data redundancy editing method |
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| CN101662351A (en) * | 2009-09-01 | 2010-03-03 | 卡斯柯信号有限公司 | Method for communication of thermal backup redundant computer with other equipment by redundant network |
| CN203301498U (en) * | 2013-03-29 | 2013-11-20 | 北京遥测技术研究所 | Redundant communication circuit based on RS485 serial interface |
| CN105610555A (en) * | 2016-02-19 | 2016-05-25 | 北京宇航系统工程研究所 | Practical system-level redundant communication network architecture |
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- 2016-10-11 CN CN201610884349.5A patent/CN106300300A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101662351A (en) * | 2009-09-01 | 2010-03-03 | 卡斯柯信号有限公司 | Method for communication of thermal backup redundant computer with other equipment by redundant network |
| CN203301498U (en) * | 2013-03-29 | 2013-11-20 | 北京遥测技术研究所 | Redundant communication circuit based on RS485 serial interface |
| CN105610555A (en) * | 2016-02-19 | 2016-05-25 | 北京宇航系统工程研究所 | Practical system-level redundant communication network architecture |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365926A (en) * | 2018-01-17 | 2018-08-03 | 北京和利时智能技术有限公司 | A kind of novel redundant system |
| CN111585858A (en) * | 2020-04-28 | 2020-08-25 | 国电南京自动化股份有限公司 | Multi-input multi-output matrix soft bus communication method and system |
| CN111585858B (en) * | 2020-04-28 | 2021-08-27 | 国电南京自动化股份有限公司 | Multi-input multi-output matrix soft bus communication method and system |
| CN113590171A (en) * | 2021-03-25 | 2021-11-02 | 南京南瑞继保电气有限公司 | Data redundancy editing method |
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