CN110912075A - Integrated feeder terminal and distributed feeder automation method thereof - Google Patents
Integrated feeder terminal and distributed feeder automation method thereof Download PDFInfo
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- CN110912075A CN110912075A CN201911122089.8A CN201911122089A CN110912075A CN 110912075 A CN110912075 A CN 110912075A CN 201911122089 A CN201911122089 A CN 201911122089A CN 110912075 A CN110912075 A CN 110912075A
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- communication
- feeder
- module
- protection module
- line terminals
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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
- H02H7/005—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 for remote controlled apparatus; for lines connecting such apparatus
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention relates to an integrated feeder terminal and a distributed feeder automation method thereof, and belongs to the technical field of power distribution network feeder automation. The distributed feeder automation method comprises the following steps: judging whether the communication of each communication module between the feeder line terminals is normal or not; if one communication module between the feeder line terminals is in normal communication, putting a protection module corresponding to the communication module into use; and if all the communication modules between the feeder line terminals do not communicate, putting the feeder line terminals into the local protection module. The invention integrates the protection module in normal communication and the protection module in non-communication, and can put in the corresponding protection module by judging whether the communication between the feeder line terminals is normal, thereby improving the adaptability of the feeder line terminals.
Description
Technical Field
The invention relates to an integrated feeder terminal and a distributed feeder automation method thereof, and belongs to the technical field of power distribution network feeder automation.
Background
The communication mode of the intelligent power distribution network in China is mainly divided into an industrial Ethernet mode and a wireless network mode, the two communication modes limit the application range of the intelligent power distribution network in China, and an access layer of the intelligent power distribution network can communicate in a wireless private network communication mode, a wireless public network communication mode, an optical fiber private network communication mode and a power line carrier communication mode. In recent years, with the advance of automatic and intelligent construction of power distribution networks, communication networks further extend to the power distribution networks, the number of communication nodes is continuously increased, the node distribution is developed from a centralized mode to a distributed mode, the types of information transmission are diversified, and the requirement on the adaptability of the communication mode of a field power distribution terminal is higher.
Meanwhile, in the intelligent distributed type developed in recent years, the fault isolation and the recovery power supply of a non-fault area are realized through the cooperation of mutual communication and protection logic between power distribution terminals, and the fault processing result can be reported to a power distribution main station according to the requirement, but the problems of complex logic and high operation and maintenance difficulty exist. The automation of the intelligent distributed feeder needs simultaneous information interaction of multiple terminals, depends on the influence of real-time communication, topological relation and parameter configuration, has high complexity and higher technical requirements on field operation and maintenance personnel, and sometimes causes that the protection control technology of the intelligent distributed power distribution network cannot be implemented and the adaptability is poor due to the difference of the communication modes of the power distribution networks in different regions.
Disclosure of Invention
The application aims to provide a distributed feeder automation method of an integrated feeder terminal, which is used for solving the problem of poor adaptability of the existing method; simultaneously still provide an integrated form feeder terminal for solve the poor problem of current terminal adaptability.
In order to achieve the above object, the present invention provides a distributed feeder automation method for an integrated feeder terminal, including the following steps:
judging whether the communication of each communication module between the feeder line terminals is normal or not;
if one communication module between the feeder line terminals is in normal communication, putting a protection module corresponding to the communication module into use;
and if all the communication modules between the feeder line terminals do not communicate, putting the feeder line terminals into the local protection module.
The beneficial effects are that: the invention integrates the protection module in normal communication and the protection module in non-communication, and can put in the corresponding protection module by judging whether the communication between the feeder line terminals is normal, thereby improving the adaptability of the feeder line terminals.
Further, in order to realize the adaptivity of different communication modules, if the optical fiber communication modules between the feeder terminals are in normal communication, an optical fiber differential protection module or a dynamic adaptive overcurrent protection module is put into use;
and if the wireless transceiving modules between the feeder line terminals are in normal communication, the wireless distributed protection modules are put into use.
Further, in order to ensure the reliability of optical fiber communication, under the condition that the optical fiber communication modules between feeder terminals are in normal communication, the optical fiber differential protection module is firstly put into use, and if the optical fiber differential protection module automatically exits, the dynamic adaptive overcurrent protection module is put into use.
Further, in order to avoid collision between the communication modules, under the condition that the optical fiber communication module and the wireless transceiver module between the feeder terminals are both in normal communication, the protection module corresponding to the optical fiber communication module is firstly put in, and if the protection module corresponding to the optical fiber communication module is automatically withdrawn, the protection module corresponding to the wireless transceiver module is put in.
In addition, the present invention also provides an integrated feeder terminal, including a memory and a processor, where the processor is configured to execute instructions stored in the memory to implement the following method:
judging whether the communication of each communication module between the feeder line terminals is normal or not;
if one communication module between the feeder line terminals is in normal communication, putting a protection module corresponding to the communication module into use;
and if all the communication modules between the feeder line terminals do not communicate, putting the feeder line terminals into the local protection module.
Has the advantages that: the invention integrates the protection module in normal communication and the protection module in non-communication, and can put in the corresponding protection module by judging whether the communication between the feeder line terminals is normal, thereby improving the adaptability of the feeder line terminals.
Further, in order to realize the adaptivity of different communication modules, if the optical fiber communication modules between the feeder terminals are in normal communication, an optical fiber differential protection module or a dynamic adaptive overcurrent protection module is put into use;
and if the wireless transceiving modules between the feeder line terminals are in normal communication, the wireless distributed protection modules are put into use.
Further, in order to ensure the reliability of optical fiber communication, under the condition that the optical fiber communication modules between feeder terminals are in normal communication, the optical fiber differential protection module is firstly put into use, and if the optical fiber differential protection module automatically exits, the dynamic adaptive overcurrent protection module is put into use.
Further, in order to avoid collision between the communication modules, under the condition that the optical fiber communication module and the wireless transceiver module between the feeder terminals are both in normal communication, the protection module corresponding to the optical fiber communication module is firstly put in, and if the protection module corresponding to the optical fiber communication module is automatically withdrawn, the protection module corresponding to the wireless transceiver module is put in.
Drawings
Fig. 1 is a schematic interface diagram of an integrated feeder terminal of the present invention;
fig. 2 is a flow chart of a distributed feeder automation method of the integrated feeder terminal of the present invention;
fig. 3 is a diagram of an automation system architecture for a wireless distributed protection module of the present invention.
Detailed Description
Integrated feeder terminal embodiment:
the integrated feeder terminal provided by this embodiment includes a communication module and a controller, where the communication module is connected to the controller, the controller includes a memory and a processor, the memory stores various protection logics (i.e., protection modules), including a protection module corresponding to the communication module and a local protection module, and the processor is configured to execute instructions stored in the memory to implement a distributed feeder automation method of the integrated feeder terminal (hereinafter referred to as a feeder terminal).
In this embodiment, in order to implement adaptivity of communication, the communication module includes a wireless transceiver module and an optical fiber communication module, and the protection module corresponding to the communication module includes a wireless distributed protection module corresponding to the wireless transceiver module, an optical fiber differential protection module corresponding to the optical fiber communication module, and a dynamic adaptive overcurrent protection module. The present invention is not limited to the specific implementation of the communication module, and in order to cooperate with the communication of the wireless transceiver module, the present invention further includes an ethernet communication module, and the wireless transceiver module realizes the wireless communication between the feeder terminals through the ethernet communication module.
In order to make the feeder terminal of the present invention better understood, a schematic interface diagram of the feeder terminal shown in fig. 1 is provided, and a specific structure is not described herein too much.
An implementation flow of the distributed feeder automation method of the integrated feeder terminal is shown in fig. 2, and includes the following steps:
1) and (4) data preparation is carried out on each feeder line terminal, and whether the communication of each communication module between the feeder line terminals is normal or not is judged through whether data transmission exists between the feeder line terminals or not.
2) And if the optical fiber communication modules between the feeder line terminals are in normal communication, the optical fiber differential protection module or the dynamic adaptive overcurrent protection module is used for completing fault location of the distribution network line and completing fault isolation together with the primary equipment of the distribution network.
In the step, firstly, an optical fiber differential protection module is put into, differential current calculation is carried out on two ends of a line through interconnection and interactive sampling information of the optical fiber communication module, whether a differential equation is satisfied or not is judged, if so, an intra-area fault is detected, protection is carried out by adopting a feeder automation processing flow of differential protection, and if not, an extra-area fault or normal operation is detected;
if the optical fiber differential protection module automatically exits, the dynamic adaptive overcurrent protection module is put into use, whether the device is in overcurrent starting or not is judged, and other devices are not in overcurrent locking.
Of course, the dynamic adaptive overcurrent protection module can be put in first during optical fiber communication, and the optical fiber differential protection module is put in when the dynamic adaptive overcurrent protection module exits.
3) If the wireless transceiving modules between the feeder terminals are in normal communication, the wireless distributed protection modules are put into use, and a wireless-based distributed feeder automatic processing flow is adopted for protection;
in step 2) and step 3), in order to avoid a conflict between the optical fiber communication and the wireless communication, under the condition that the optical fiber communication module and the wireless transceiver module are both in normal communication, the protection module corresponding to the optical fiber communication module is firstly put in, and if the protection module corresponding to the optical fiber communication module is automatically withdrawn, the protection module corresponding to the wireless transceiver module is put in. In this case, of course, the protection module corresponding to the wireless transceiver module may be put into use first, as long as collision is avoided.
4) If all communication modules between feeder terminals are not communicated, the local protection module is put into use, the self-adaptive local feeder automatic processing flow is adopted, the fault location of the distribution network line is completed, and the fault isolation and the power supply switching control are completed together with primary equipment.
The order of implementing the distributed feeder automation method of the present invention is not limited to the above steps, but in the present invention, the optical fiber communication and the optical fiber differential protection module are considered preferentially due to the reliability of the optical fiber communication and the optical fiber differential protection, and certainly, in order to improve the adaptability, when the user quits a certain protection, the protection module can be replaced.
The implementation of the wireless distributed protection module in the present invention is, as shown in fig. 3 (a distribution network terminal, i.e. a feeder terminal in fig. 3), a distributed protection module based on wireless communication, and the protection logic related to the protection module may be any protection logic in the prior art, for example: protection logic for overcurrent protection, protection logic for differential protection, and the like. Similarly, the protection module corresponding to the optical fiber communication can also be other protection logics, and the self-adaptability can be better improved by the arrangement.
The feeder terminal integrates various communications and various protection modules, and solves the problem of adaptability of power distribution network protection control to diversified communication modes by judging the communications among the terminals.
The distributed feeder automation method embodiment of the integrated feeder terminal comprises the following steps:
the distributed feeder automation method of the integrated feeder terminal provided by the embodiment comprises the following steps:
judging whether the communication between the feeder line terminals is normal or not;
if the communication modules between the feeder line terminals are in normal communication, putting the protection modules corresponding to the communication modules into use;
and if no communication exists between the feeder line terminals, putting the feeder line terminals into the local protection module.
The specific implementation process of the distributed feeder automation method of the integrated feeder terminal is described in the above-mentioned embodiment of the integrated feeder terminal, and is not described herein again.
The present invention has been described in relation to particular embodiments thereof, but the invention is not limited to the described embodiments. In the thought given by the present invention, the technical means in the above embodiments are changed, replaced, modified in a manner that is easily imaginable to those skilled in the art, and the functions are basically the same as the corresponding technical means in the present invention, and the purpose of the invention is basically the same, so that the technical scheme formed by fine tuning the above embodiments still falls into the protection scope of the present invention.
Claims (8)
1. A distributed feeder automation method of an integrated feeder terminal is characterized by comprising the following steps:
judging whether the communication of each communication module between the feeder line terminals is normal or not;
if one communication module between the feeder line terminals is in normal communication, putting a protection module corresponding to the communication module into use;
and if all the communication modules between the feeder line terminals do not communicate, putting the feeder line terminals into the local protection module.
2. The integrated feeder terminal distributed feeder automation method of claim 1 further implementing the steps of:
if the optical fiber communication modules between the feeder line terminals are in normal communication, the optical fiber differential protection module or the dynamic adaptive overcurrent protection module is put into the feeder line terminals;
and if the wireless transceiving modules between the feeder line terminals are in normal communication, the wireless distributed protection modules are put into use.
3. The distributed feeder automation method for integrated feeder terminals of claim 2 wherein in the event of normal communication of the fiber optic communications modules between feeder terminals, the fiber optic differential protection module is first launched and if the fiber optic differential protection module automatically exits, the dynamically adaptive over-current protection module is launched.
4. The distributed feeder automation method of an integrated feeder terminal as claimed in claim 2 or 3 wherein in case that the optical fiber communication module and the wireless transceiver module between the feeder terminals are in normal communication, the protection module corresponding to the optical fiber communication module is first put in, and if the protection module corresponding to the optical fiber communication module is automatically withdrawn, the protection module corresponding to the wireless transceiver module is put in.
5. An integrated feeder terminal comprising a memory and a processor for executing instructions stored in the memory to implement a method comprising:
judging whether the communication of each communication module between the feeder line terminals is normal or not;
if one communication module between the feeder line terminals is in normal communication, putting a protection module corresponding to the communication module into use;
and if all the communication modules between the feeder line terminals do not communicate, putting the feeder line terminals into the local protection module.
6. The integrated feeder terminal of claim 5, wherein if the fiber optic communications modules between the feeder terminals are in normal communication, a fiber optic differential protection module or a dynamically adaptive over-current protection module is engaged;
and if the wireless transceiving modules between the feeder line terminals are in normal communication, the wireless distributed protection modules are put into use.
7. The integrated feeder terminal of claim 6, wherein in the event of normal communication of the fiber optic communications modules between feeder terminals, the fiber optic differential protection module is first launched and if the fiber optic differential protection module is automatically exited, the dynamic adaptive over-current protection module is launched.
8. The integrated feeder terminal as claimed in claim 6 or 7, wherein in case that the optical fiber communication module and the wireless transceiving module between the feeder terminals are in normal communication, the protection module corresponding to the optical fiber communication module is first put in, and if the protection module corresponding to the optical fiber communication module is automatically withdrawn, the protection module corresponding to the wireless transceiving module is put in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911122089.8A CN110912075A (en) | 2019-11-15 | 2019-11-15 | Integrated feeder terminal and distributed feeder automation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911122089.8A CN110912075A (en) | 2019-11-15 | 2019-11-15 | Integrated feeder terminal and distributed feeder automation method thereof |
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| CN110912075A true CN110912075A (en) | 2020-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530834A (en) * | 2022-02-23 | 2022-05-24 | 南京国电南自电网自动化有限公司 | Power distribution network line current locking type incomplete differential protection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204497849U (en) * | 2015-04-13 | 2015-07-22 | 南京大全自动化科技有限公司 | A kind ofly take into account measure and control device that is centralized, formula feeder automation on the spot |
| CN110165639A (en) * | 2019-05-06 | 2019-08-23 | 石家庄科林电气股份有限公司 | A kind of method that distribution terminal operating mode automatically switches |
| CN110429707A (en) * | 2019-06-06 | 2019-11-08 | 广东电网有限责任公司 | A kind of distribution feeder automation protection intelligent regulator platform |
-
2019
- 2019-11-15 CN CN201911122089.8A patent/CN110912075A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204497849U (en) * | 2015-04-13 | 2015-07-22 | 南京大全自动化科技有限公司 | A kind ofly take into account measure and control device that is centralized, formula feeder automation on the spot |
| CN110165639A (en) * | 2019-05-06 | 2019-08-23 | 石家庄科林电气股份有限公司 | A kind of method that distribution terminal operating mode automatically switches |
| CN110429707A (en) * | 2019-06-06 | 2019-11-08 | 广东电网有限责任公司 | A kind of distribution feeder automation protection intelligent regulator platform |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530834A (en) * | 2022-02-23 | 2022-05-24 | 南京国电南自电网自动化有限公司 | Power distribution network line current locking type incomplete differential protection method |
| CN114530834B (en) * | 2022-02-23 | 2023-10-31 | 南京国电南自电网自动化有限公司 | Power distribution network line current locking type incomplete differential protection method |
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Application publication date: 20200324 |