CN108169625A - A kind of distribution feed line automatization terminal and distribution line failure localization method - Google Patents
A kind of distribution feed line automatization terminal and distribution line failure localization method Download PDFInfo
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- CN108169625A CN108169625A CN201711463997.4A CN201711463997A CN108169625A CN 108169625 A CN108169625 A CN 108169625A CN 201711463997 A CN201711463997 A CN 201711463997A CN 108169625 A CN108169625 A CN 108169625A
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- 238000009826 distribution Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000004807 localization Effects 0.000 title claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 24
- 230000003068 static effect Effects 0.000 claims abstract description 23
- 238000000465 moulding Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25232—DCS, distributed control system, decentralised control unit
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Automation & Control Theory (AREA)
- Locating Faults (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention provides a kind of distributed feed line automatization terminal and distribution line failure localization method, wherein, terminal includes control module, current acquisition module and peer communication module；Fault Locating Method includes step：Current acquisition module obtains current signal in real time, and by control module judge electric current whether overcurrent, signal when control module generates failure pair, and when passing through peer communication module and signal during failure pair being distributed to each distributed feed line automatization terminal synchronize pair, failure judgement is located in the distribution line region between two adjacent distributions formula feed line automatization terminals of overcurrent simultaneously.The distribution feed line automatization terminal and distribution line failure localization method are updated the network topology model being installed in circuit Intelligent power distribution terminal using the static topological model and dynamic topology model of real-time update when distribution line network topology structure changes.
Description
Technical field
The present invention relates to a kind of terminal device and Fault Locating Method, especially a kind of distributed feed line automatization terminal with
And distribution line failure localization method.
Background technology
In the construction and daily O＆M of power grid, resist increasingly frequent natural calamity and external interference, reduce operation into
This, promote energy-saving and emission-reduction as one of important work of Future Power System, this requires power grid must improve its flexibility and simultaneous
Its Prevention-Security ability and self-healing ability is continuously improved by intelligent means in capacitive.Power distribution automation is built as intelligent grid
If an important ring in has been also injected into new intension in the development spring tide of intelligent grid, has welcome the climax of new round construction.
Therefore it must try to explore and put into practice intelligent grid to build power distribution automation idea of development under the new situation and implementation pattern, build
Advanced, practical, open, interactive, stable, reliable electrical power distribution automatization system realizes that the quickly isolating of failure, non-faulting region are fast
Quick-recovery is powered, and improves power distribution network normal operation level, and is the all-round popularization and application of next stage power distribution automation
It accumulates experience, demonstration is provided.
At present in the construction of electrical power distribution automatization system at this stage and operational process, electrical power distribution automatization system fault location,
Isolation and recovery depend on centralized FA to complete, but centralization FA action effects depend on power distribution automation master
The accuracy for the global information stood.In face of power supply reliability increasingly higher demands, more and more scientific research personnel open in recent years
Begin to study and realize that quick positioning, isolation and the non-faulting region of electrical power distribution automatization system failure are restored using intelligent distributed FA
Power supply, so as to fulfill failure quickly isolate and self-healing, and because it is independent of power distribution automation main station or the overall situation of substation
Information, and to distribution line better adaptability, more easily safeguard the features such as, in the process of construction of electrical power distribution automatization system more
It is paid close attention to get over by power generation department, but in current intelligent distributed FA application processes, it is maintainable and right
Very big deficiency is still remained in the adaptability of distribution line change, mainly due to the equipment ad hoc capability of intelligent distributed FA
Difference：Due to its accuracy of action dependent on being in communication with each other between looped network Intelligent power distribution terminal and with distribution line network topology
Close structure is related, when distribution line network topology structure changes, there is no to being installed in circuit Intelligent power distribution terminal
The network topology model means and method that are updated, i.e. Intelligent power distribution terminal can not send out in distribution line network topology structure
Ad hoc network function is realized during changing.
Invention content
The technical problem to be solved by the present invention is to existing distributed feed line automatization terminal maintainability and for distribution
The adaptability of circuit change still remains very big deficiency, and ad hoc capability is poor.
In order to solve the above technical problem, the present invention provides a kind of distributed feed line automatization terminal, including controlling mould
Block, current acquisition module and peer communication module；
Current acquisition module, for obtaining the electric current letter at the circuit end points at local distributed feed line automatization terminal position
Number；
Peer communication module for the signal transmission between distribution feed line automatization terminal each in distribution line, transmits signal
The signal when current signal and failure pair that are obtained including static topological model, dynamic topology model, current acquisition module；
Control module, for generating and updating static topological model and dynamic topology model, and in overcurrent during generation failure pair
Signal, static topological model are generated by control module according to distribution line topological connection relation, and dynamic topology model is by control mould
Root tuber is generated according to power supply point, supply path, node state and node interconnection switch.
The present invention also provides a kind of distribution line failure localization method of distributed feed line automatization terminal, including following
Step：
Step 1, current acquisition module obtains current signal in real time, and by control module judge electric current whether overcurrent, if not occurring
Overcurrent then enters step 2, if there is overcurrent, enters step 3；
Step 2, the electric current that peer communication module obtains static topological model, dynamic topology model and current acquisition module is believed
Number timing is distributed to each distributed feed line automatization terminal on distribution line, the control of each distribution feed line automatization terminal
Molding root tuber carries out Topology connection information update according to the static topological model and dynamic topology model of reception, is opened up further according to newer
It flutters link information the static topological model, dynamic topology model and current signal of reception are issued by peer communication module and matched
Each distributed feed line automatization terminal in electric line, returns again to step 1；
Step 3, signal during control module generation failure pair, and pass through peer communication module and signal during failure pair is distributed to distribution
When each distributed feed line automatization terminal on circuit synchronizes pair；
Step 4, during control module failure judgement pair signal moment local current acquisition module obtain current signal whether overcurrent,
The current signal that the signal moment is obtained by peer communication module during failure judgement pair simultaneously whether over-current signal, failure is positioned at simultaneously
Distribution between the local distributed feed line automatization terminal of overcurrent and the distributed feed line automatization terminal for sending over-current signal
In land.
Further, in step 1, the current signal that current acquisition module obtains is intelligent distribution type feeder automation terminal
The current signal at circuit end points at position.
Further, in step 2, static topological model is generated by control module according to distribution line topological connection relation,
Dynamic topology model is generated by control module according to power supply point, supply path, node state and node interconnection switch.
The beneficial effects of the present invention are：
1st, the accuracy of intelligent distribution type feeder automation terminal action is overcome dependent between looped network Intelligent power distribution terminal
It is in communication with each other and is closely related with distribution line network topology structure, when distribution line network topology structure changes, profit
With the static topological model of real-time update and dynamic topology model to the network topology mould that is installed in circuit Intelligent power distribution terminal
Type is updated.
2nd, carry out current acquisition and during fault distinguishing using based on synchronized sampling pair when method, precision when ensure that pair
It can realize accurate differentiation distribution network failure region.
Description of the drawings
Fig. 1 is usage state diagram of the distributed feed line automatization terminal of the present invention in distribution line；
Fig. 2 is the electric network fault zone location flow chart of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
As shown in Figure 1, distribution feed line automatization terminal provided by the invention, including control module, current acquisition module
And peer communication module；
Current acquisition module, for obtaining the electric current letter at the circuit end points at local distributed feed line automatization terminal position
Number；
Peer communication module for the signal transmission between distribution feed line automatization terminal each in distribution line, transmits signal
The signal when current signal and failure pair that are obtained including static topological model, dynamic topology model, current acquisition module；
Control module, for generating and updating static topological model and dynamic topology model, and in overcurrent during generation failure pair
Signal, static topological model are generated by control module according to distribution line topological connection relation, and dynamic topology model is by control mould
Root tuber is generated according to power supply point, supply path, node state and node interconnection switch.
In Fig. 1, using two distributed feed line automatization terminals and a newly-increased distributed feeder line in the embodiment
For automatization terminal to change Topology connection, distributed feed line automatization terminal can also be more, are distributed in each of distribution line
It at a endpoint, can specifically be arranged, be realized by interface corresponding signal as needed.Control module is sent out in circuit
Signal during generation failure pair during raw failure, when controlling each distributed feed line automatization terminal to synchronize pair.Each distribution feeder line
Automatization terminal is in each endpoint being each located on, and synchronized sampling line current simultaneously carries out judging whether overcurrent, in control module
Control under the current signal of recording is transferred to adjacent distributed feed line automatization terminal by peer communication module, each point
Cloth feed line automatization terminal compares the amplitude size of the over-current signal obtained in a manner of peer-to-peer communications and the current signal of local,
So as to according to whether overcurrent comes failure judgement region simultaneously.
As shown in Fig. 2, the distribution line failure localization method of distribution feed line automatization terminal provided by the invention, including
Following steps：
Step 1, current acquisition module obtains current signal in real time, and by control module judge electric current whether overcurrent, if not occurring
Overcurrent then enters step 2, if there is overcurrent, enters step 3；
Step 2, the electric current that peer communication module obtains static topological model, dynamic topology model and current acquisition module is believed
Number timing is distributed to each distributed feed line automatization terminal on distribution line, the control of each distribution feed line automatization terminal
Molding root tuber carries out Topology connection information update according to the static topological model and dynamic topology model of reception, is opened up further according to newer
It flutters link information the static topological model, dynamic topology model and current signal of reception are issued by peer communication module and matched
Each distributed feed line automatization terminal in electric line, returns again to step 1；
Step 3, signal during control module generation failure pair, and pass through peer communication module and signal during failure pair is distributed to distribution
When each distributed feed line automatization terminal on circuit synchronizes pair；
Step 4, during control module failure judgement pair signal moment local current acquisition module obtain current signal whether overcurrent,
The current signal that the signal moment is obtained by peer communication module during failure judgement pair simultaneously whether over-current signal, failure is positioned at simultaneously
Distribution between the local distributed feed line automatization terminal of overcurrent and the distributed feed line automatization terminal for sending over-current signal
In land.
Further, in step 1, the current signal that current acquisition module obtains is intelligent distribution type feeder automation terminal
The current signal at circuit end points at position.
Further, in step 2, static topological model is generated by control module according to distribution line topological connection relation,
Dynamic topology model is generated by control module according to power supply point, supply path, node state and node interconnection switch.
The distribution line failure localization method of the embodiment of the present invention is respectively provided with distribution at the both ends of distribution line or multiterminal
Feed line automatization terminal, at distribution line both ends or multiterminal by distributed feed line automatization terminal synchronized sampling line current signal
And judging whether overcurrent, adjacent distributions formula feed line automatization terminal is carried out by way of peer-to-peer communications if line failure
It transmits, is then judged whether in distributed feed line automatization terminal by the current signal that adjacent both ends sample while overcurrent is come real
Existing fault location and Fault Isolation.When carrying out current acquisition and fault distinguishing using the method based on synchronized sampling, ensure that
Pair when precision can realize and accurate differentiate distribution network failure region.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting claim, any this field
Technical staff without departing from the spirit and scope of the present invention, can make possible variation and modification, therefore the present invention
Protection domain should be subject to the range that the claims in the present invention are defined.
Claims (4)
1. a kind of distribution feed line automatization terminal, which is characterized in that logical including control module, current acquisition module and equity
Believe module；
Current acquisition module, for obtaining the electric current letter at the circuit end points at local distributed feed line automatization terminal position
Number；
Peer communication module for the signal transmission between distribution feed line automatization terminal each in distribution line, transmits signal
The signal when current signal and failure pair that are obtained including static topological model, dynamic topology model, current acquisition module；
Control module, for generating and updating static topological model and dynamic topology model, and in overcurrent during generation failure pair
Signal, static topological model are generated by control module according to distribution line topological connection relation, and dynamic topology model is by control mould
Root tuber is generated according to power supply point, supply path, node state and node interconnection switch.
2. a kind of distribution line failure localization method of distributed feed line automatization terminal according to claim 1, special
Sign is, includes the following steps：
Step 1, current acquisition module obtains current signal in real time, and by control module judge electric current whether overcurrent, if not occurring
Overcurrent then enters step 2, if there is overcurrent, enters step 3；
Step 2, the electric current that peer communication module obtains static topological model, dynamic topology model and current acquisition module is believed
Number timing is distributed to each distributed feed line automatization terminal on distribution line, the control of each distribution feed line automatization terminal
Molding root tuber carries out Topology connection information update according to the static topological model and dynamic topology model of reception, is opened up further according to newer
It flutters link information the static topological model, dynamic topology model and current signal of reception are issued by peer communication module and matched
Each distributed feed line automatization terminal in electric line, returns again to step 1；
Step 3, signal during control module generation failure pair, and pass through peer communication module and signal during failure pair is distributed to distribution
When each distributed feed line automatization terminal on circuit synchronizes pair；
Step 4, during control module failure judgement pair signal moment local current acquisition module obtain current signal whether overcurrent,
The current signal that the signal moment is obtained by peer communication module during failure judgement pair simultaneously whether over-current signal, failure is positioned at simultaneously
Distribution between the local distributed feed line automatization terminal of overcurrent and the distributed feed line automatization terminal for sending over-current signal
In land.
3. a kind of distribution line failure localization method of distributed feed line automatization terminal according to claim 2, special
Sign is, in step 1, the current signal that current acquisition module obtains is the line of intelligent distribution type feeder automation extreme positions
Current signal at terminal point.
4. a kind of distribution line failure localization method of distributed feed line automatization terminal according to claim 2, special
Sign is, in step 2, static topological model is generated by control module according to distribution line topological connection relation, dynamic topology mould
Type is generated by control module according to power supply point, supply path, node state and node interconnection switch.
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| CN201711463997.4A CN108169625A (en) | 2017-12-28 | 2017-12-28 | A kind of distribution feed line automatization terminal and distribution line failure localization method |
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Cited By (6)
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| CN108233344A (en) * | 2018-01-29 | 2018-06-29 | 合肥工业大学 | Power distribution network WAMS communications protections and feeder automation method based on multicast |
| CN111641265A (en) * | 2020-05-29 | 2020-09-08 | 国网江苏省电力有限公司南京供电分公司 | Distribution network distributed feeder automation terminal and self-adaptive detection method thereof |
| CN111711965A (en) * | 2020-08-20 | 2020-09-25 | 南京智汇电力技术有限公司 | Intelligent distributed FA fault positioning method based on wireless communication |
| CN111970093A (en) * | 2020-08-18 | 2020-11-20 | 金华八达集团有限公司科技信息分公司 | Intelligent distributed FA processing method under abnormal communication condition |
| CN113131448A (en) * | 2021-03-19 | 2021-07-16 | 郑州电力高等专科学校 | Intelligent distributed feeder line method and device based on 5G communication |
| CN113194432A (en) * | 2021-04-29 | 2021-07-30 | 国网上海市电力公司 | Network communication method between intelligent distributed feeder automation terminals |
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| CN113194432A (en) * | 2021-04-29 | 2021-07-30 | 国网上海市电力公司 | Network communication method between intelligent distributed feeder automation terminals |
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Application publication date: 20180615 |