CN110365015A - A kind of distribution network failure processing method and processing device based on distributed intelligence - Google Patents
A kind of distribution network failure processing method and processing device based on distributed intelligence Download PDFInfo
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- CN110365015A CN110365015A CN201910680051.6A CN201910680051A CN110365015A CN 110365015 A CN110365015 A CN 110365015A CN 201910680051 A CN201910680051 A CN 201910680051A CN 110365015 A CN110365015 A CN 110365015A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
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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
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The distribution network failure processing method and processing device based on distributed intelligence that the invention discloses a kind of, comprising: in conjunction with the operation characteristic of distributed feed line automatization system, establish the service restoration target for being suitable for distributed feed line automatization system；Consider load quantity number with the significance level of load type, establish region load evaluation model；Region topological model to be restored is established using depth-first traversal, troubleshooting is carried out based on single interconnection switch service restoration method and single interconnection switch cutting load service restoration method, realizes service restoration.The present invention can reduce the pressure of main website centralized control and information processing, realize the power distribution network service restoration strategy lean of multi-joint network, multiple-limb, more power supplys.
Description
Technical field
The distribution network failure processing method and processing device based on distributed intelligence that the present invention relates to a kind of, belong to electric system and its
Field of automation technology.
Background technique
Self-healing control is one of notable feature of intelligent distribution network, distributed feeder automation (Feeder
Automation, FA) technology be realize intelligent distribution network self-healing control effective means.Distributed FA technology is according to decision mode
Classification can be divided into synergetic distribution FA and act on behalf of type distribution FA, the former is suitable for backup power source residual capacity abundance, wiring
Simple distribution line, the latter can be applied to multi-joint network, multiple-limb, complicated distribution network.Distributed FA technology according to
Outlet breaker whether the classification of motion, region slow-action type distribution FA and neighborhood quick action type distribution FA can be divided into, the former apply
In the distribution line that block switch is on-load switch, troubleshooting speed is slower, and it is breaker that the latter, which is applied to block switch,
Distribution line, troubleshooting fast speed.
It positions about the distributed FA system failure and reaches its maturity with the research in terms of being isolated both at home and abroad, but lack about distribution
Formula FA system power supply restores the research of aspect.Therefore, research will act on behalf of quick action type distribution FA technology applied to contact, multiple-limb
In the Complicated Distribution Network network of more power supplys, the advantage of the two is given full play to, the popularization and the following intelligent distribution network to the technology
Construction is of great significance.
And there has been no economic, reliable technical solutions can be realized above-mentioned function at present.
Summary of the invention
The distribution network failure processing method and processing device based on distributed intelligence that the purpose of the present invention is to provide a kind of, based on to
Restore region topological model, proposes single interconnection switch service restoration scheme and the simply connected network cutting load power supply based on greedy algorithm
Recovery scheme.Relative to the troubleshooting scheme of conventional electrical distribution system, program troubleshooting speed faster, can be realized power supply
Recovery policy restores lean.
For achieving the above object, following technical solution can be used in the present invention:
A kind of distribution network failure processing method based on distributed intelligence, comprising:
(1) current information at distribution line block switch is obtained, identifies the section to break down, controls fault section
Block switch separating brake and generate Fault Isolation information and be sent to proxy terminal；
(2 establish to be restored according to the Fault Isolation message in conjunction with existing feeder line topology information and block switch state
Network topology model；
(3) quantity and residual capacity of interconnection switch in the connected graph that the network topology model to be restored is constituted are counted；
(4) according to the quantity and residual capacity of the interconnection switch, it is powered recovery.
Current information at distribution line block switch above-mentioned is acquired by real-time monitoring terminal each on feeder line, if
There are real-time monitoring terminals to collect overcurrent information on feeder line, then line failure；
The proxy terminal configuration is at substation exit breaker.
Fault Isolation information above-mentioned includes: block switch title ID and isolation result mark ISFL, if ISFL=1,
Expression is isolated successfully；If ISFL=0, isolation failure is indicated.
If isolation failure above-mentioned, adjacent sectional switchs separating brake, until being isolated successfully.
It is above-mentioned to establish network topology model to be restored, comprising:
The block switch of gate-dividing state is in as root node using fault down stream, remaining block switch is child node, using depth
Degree first traversal algorithm is traversed, until searching at interconnection switch or end switch, to establish area to be restored network
Topological model.
The quantity and remaining appearance of interconnection switch in the connected graph that the statistics network topology model to be restored above-mentioned is constituted
Amount, comprising:
Judge whether the network topology model to be restored belongs to connected graph；If it is, the statistics network to be restored
Interconnection switch quantity and residual capacity in topological model construct interconnection switch collection；
If the network topology model to be restored is not belonging to connected graph, the network topology model to be restored is divided
For the submodel that several connected graphs are constituted, interconnection switch quantity and residual capacity in the submodel, building are then counted
Model interconnection switch collection.
Quantity and residual capacity above-mentioned according to the interconnection switch, is powered recovery, comprising:
If it is 0 that the interconnection switch collection or the submodel interconnection switch, which concentrate interconnection switch quantity, no backup power source,
Service restoration can not be completed immediately；
If it is not 0 that the interconnection switch collection or the submodel interconnection switch, which concentrate interconnection switch quantity, according to contact
The sequence of residual capacity from big to small is switched, whether analysis interconnection switch residual capacity meets region workload demand；If satisfied, then
Using single interconnection switch service restoration scheme；If not satisfied, then using single interconnection switch cutting load service restoration scheme.
It is above-mentioned to use single interconnection switch service restoration scheme, comprising:
Proxy terminal issues reclosing command to interconnection switch, after interconnection switch receives reclosing command, executes closing operation simultaneously
Fault recovery result confirmation message is sent to proxy terminal, the confirmation message includes interconnection switch ID and restoration result mark
REFL；
If REFL=1, interconnection switch closing success, service restoration；If REFL=0, interconnection switch, which closes a floodgate, to fail, weight
Newly analyze whether next interconnection switch residual capacity meets region workload demand.
It is above-mentioned to use single interconnection switch cutting load service restoration scheme, comprising:
For proxy terminal using the interconnection switch analyzed as root node, block switch is child node, is traversed, every traversal 1
Rank exports an element:
Wherein, X0To traverse initial value, XjWith Xj-1The respectively output element of jth rank traversal and -1 rank of jth traversal,
For the peak load weight coefficient in jth rank traversal；
When output element reaches load excision critical value, stop traversal；
The corresponding block switch of the end child node in the path that control agent terminal is accessed disconnects, and then executes simply connected network
Switch service restoration scheme；
1 rank refers to all child nodes for belonging to the same father node.
Peak load weight coefficient above-mentioned calculates as follows:
Wherein, w1、w2And w3The weight factor of level-one, second level and three stage loads is respectively indicated, is met: w1+w2+w3=1 and
w1>w2>w3,
I1、I2And I3It is respectively the level-one, second level and three-level load current of unit feeder line section.
It is above-mentioned when being traversed, if multiple child nodes are not the same father node, calculate separately same father node
Under child node peak load weight coefficient, choose a series of access road that traverses as the rank of the maximum child nodes of calculated value
Diameter.
In carry out fault treating procedure above-mentioned, following service restoration target need to be met:
A, it maximizes and restores load power supply:
Wherein, n indicates that fault down stream region feeder line section sum, f are the load total amount to restore electricity in fault down stream region,
xi0 or 1 is taken, indicates that the load of feeder line section si is in and has a power failure or restore state,Indicate feeder line section si in fault down stream region
Power loss load；
B, control switch action frequency, the switch includes block switch and interconnection switch:
Wherein, m indicates the total number of switches on distribution line, and T indicates switch motion number, ti0 or 1 is taken, indicates switch shape
State keeps original state or changes.
A kind of distribution network failure processing unit based on distributed intelligence, comprising: fault identification module, model construction module,
Statistical module and troubleshooting execution module；
The fault identification module is used to obtain current information at distribution line block switch, identifies and breaks down
Section controls the block switch separating brake of fault section and generates Fault Isolation information and be sent to proxy terminal；
The model construction module is used to be opened in conjunction with existing feeder line topology information with segmentation according to the Fault Isolation message
Off status establishes network topology model to be restored；
The statistical module is used to count the number of interconnection switch in the connected graph that the network topology model to be restored is constituted
Amount and residual capacity；
The troubleshooting execution module is used for quantity and residual capacity according to the interconnection switch, is powered extensive
It is multiple.
The beneficial effects obtained by the present invention are as follows are as follows: the present invention, which can make full use of, acts on behalf of type distribution FA and neighborhood quick action type
The advantage of distributed FA realizes the service restoration strategy lean of the quick positioning and non-faulting region of failure.
The present invention can reduce the pressure of main website centralized control and information processing, realize multi-joint network, multiple-limb, more power supplys
Power distribution network service restoration strategy lean.
Detailed description of the invention
Fig. 1 is the distribution network failure processing system architecture diagram of the invention based on distributed intelligence；
Fig. 2 is the power distribution network schematic diagram based on distributed intelligence in the embodiment of the present invention；
The region Top Modules to be restored that Fig. 3 is established after being broken down on the right side of breaker CB1 by power distribution network shown in Fig. 2
Type schematic diagram；
Fig. 4 is that the present invention is based on the distribution network failure process flow diagrams of distributed intelligence；
Fig. 5 is single interconnection switch cutting load service restoration ergodic process schematic diagram in the embodiment of the present invention；Fig. 5 (a) is institute
There is traverse node figure, Fig. 5 (b) is 3 rank traverse node figures, and Fig. 5 (c) is 4 rank traverse node figures.
Specific embodiment
The invention will be further described below.Following embodiment is only used for clearly illustrating technical side of the invention
Case, and not intended to limit the protection scope of the present invention.
The present invention provides a kind of distribution network failure processing method based on distributed intelligence, is broadly divided into foundation and is suitable for distribution
The service restoration target of formula feeder automation；In conjunction with the size of load current and the significance level of load, establishes region load and comment
Estimate model；Proxy terminal is set, region topological model to be restored is established using depth-first traversal algorithm；It proposes based on distribution
The service restoration scheme of intelligence, including single interconnection switch service restoration scheme and simply connected network cutting load service restoration scheme etc. four
Divide content.Its system tray is referring to Fig. 1, and DER indicates distributed generation resource in Fig. 1.
(1), the service restoration target for being suitable for distributed feed line automatization system is established
In view of distributed FA system operation characteristic, restore plan in conjunction with the normal power supply of distribution system, foundation is suitable for
Act on behalf of the service restoration target of quick action type distribution FA system.After line failure, set at substation exit breaker
300ms and the above delay tripping are set, the separating brake at the appointed time of the corresponding block switch of terminal control around fault section,
The power supply of failure upstream region load is unaffected, need to only pay close attention to the service restoration of fault down stream region load.
It 1) is preferably that important load region restores electricity；
2) it maximizes as far as possible and restores load power supply:
In formula, n indicates that fault down stream region feeder line section sum, f are the load total amount to restore electricity in fault down stream region,
xi0 or 1 is taken, indicates that the load of feeder line section si is in and has a power failure or restore state；Indicate feeder line section si in fault down stream region
Power loss load.
3) switch motion number is efficiently controlled:
In formula, m indicates the total number of switches on distribution line, and T indicates switch motion number, ti0 or 1 is taken, indicates switch shape
State keeps original state or changes.The switch includes block switch and interconnection switch.
(2), consider load current size and significance level, establish region load evaluation model
Load can be divided into level-one, second level and three stage loads according to grade classification, for distinguish load significance level, then
Different weight factors, respectively w can be assigned for level-one, second level and three stage loads1、w2And w3, wherein w1+w2+w3=1 and w1>
w2>w3, W is weight factor vector.
W={ w1,w2,w3} (3)
For various types load contained in the S of region, load current vector L, I are established1、I2、I3It is respectively unit feeder line section
Level-one, second level and three-level load current:
L={ ∑ I1,∑I2,∑I3} (4)
The weight coefficient K of definition region S internal loading, the size according to K carry out the importance assessment of region load, and K is bigger,
Then show that the load in the S of region is more important, i.e., during service restoration, preferentially restores for the biggish region load of K value as far as possible
Power supply.Wherein, the load weight coefficient between adjacent switch is referred to as specific load weight coefficient k.
K=WL=w1∑I1+w2∑I2+w3∑I3 (5)
The load weight coefficient for defining unit area is k.
(3), it is based on depth-first traversal algorithm, establishes region topological model to be restored
After line failure, intelligent terminal unit (Smart Terminal Unit, STU) is controlled around fault section
Switch trip, and actively inform proxy terminal, after proxy terminal receives Fault Isolation message, establish network topology mould to be restored
Type, detailed process is as follows:
Using depth-first traversal algorithm, the block switch of gate-dividing state is in as root node using fault down stream, remaining point
Duan Kaiguan is child node, until searching at interconnection switch or end switch, stops search, establishes area to be restored network topology
Model counts the corresponding interconnection switch quantity p in the region and residual capacity, interconnection switch collection A is constructed, by all interconnection switches
Residual capacity is arranged successively according to descending sequence, finds out greatest residual capacity in interconnection switch collection AAnd its it is corresponding
Interconnection switch ID.
Distribution net work structure referring to fig. 2, when the permanent event of generation between the outlet breaker CB1 and #1 line #1HWG of #1 line
When barrier, STUA and STU1 control breaker CB1 and #1 line #1HWG#1 respectively and switch separating brake, and Fig. 3 is proxy terminal with #1 line #
#1 switch is the network topology model to be restored that root node is established in 1HWG.
(4), the power distribution network service restoration scheme based on distributed intelligence is established
1) overall plan
Referring to fig. 4, work as line failure, after system completes fault section and isolation, proxy terminal establishes area to be restored
Network topology model, judges whether model built belongs to connected graph.
If belonging to connected graph, the corresponding interconnection switch quantity in the region and residual capacity are analyzed.
If (a) the corresponding interconnection switch quantity in the region is 0, no backup power source is available, then can not restore electricity.
If (b) the corresponding interconnection switch quantity in the region is 1, analyze whether the interconnection switch residual capacity meets the area
Domain workload demand.If satisfied, then realizing service restoration by single interconnection switch service restoration scheme；If not satisfied, then using greedy
The thought elder generation cutting load of greedy algorithm recloses interconnection switch, realizes service restoration.
If (c) the corresponding interconnection switch quantity in the region is greater than 1, whether full the maximum interconnection switch of residual capacity is analyzed
The foot region workload demand.If satisfied, then realizing service restoration by single interconnection switch service restoration scheme；If not satisfied, then
The maximum interconnection switch cooperation cutting load scheme of residual capacity is taken, realizes service restoration.
If being not belonging to connected graph, network topology model to be restored is divided into the submodel of several connected graphs composition,
Independent analysis, the corresponding interconnection switch quantity of analysis all subregion are carried out to each submodel region.
2) single interconnection switch service restoration scheme
Definition set AiIt is by Ai-1Delete its inner element maximum valueThe set created, wherein A0It indicates just
The set that all interconnection switches are constituted under the conditions of beginning,For set A under primary condition0The middle maximum contact of residual capacity is opened
Close corresponding residual capacity.
(21) if proxy terminal collects overcurrent information, line failure, the intelligence around fault section
Terminal unit controls corresponding switch separating brake, generates isolation message, which includes block switch title ID and isolation junction
Fruit mark ISFL (takes 0 or 1), if ISFL=1, success is isolated, then direct notification agent terminal；If ISFL=0, mistake is isolated
It loses, notice adjacent sectional switch is expanded into isolation range, notification agent terminal after being isolated successfully.In the present invention, proxy terminal is matched
It sets at the corresponding switch of substation exit breaker.
(22) after proxy terminal receives isolation message, network topology model to be restored is established, identify interconnection switch and is counted
Its quantity p constructs interconnection switch collection A, finds out greatest residual capacity in interconnection switch collection AAnd its corresponding interconnection switch ID.
(23) judge whether the interconnection switch residual capacity is eligible, if meeting, proxy terminal is sent out to interconnection switch
Reclosing command out, after interconnection switch receives reclosing command, execution closing operation is simultaneously true to proxy terminal transmission fault recovery result
Recognize message, confirmation message includes interconnection switch ID, restoration result mark REFL；If ineligible, consider that cutting load restores
Power supply.
(24) if REFL=1, closing success；If REFL=0 closes a floodgate and fails, set A is found out1, A1That is A0Removal is surplus
The set that the maximum interconnection switch of covolume amount is established, if A1It is not empty set, then obtains interconnection switch collection A1Middle maximum residual is held
AmountAnd its corresponding interconnection switch ID, it repeats step (23).
3) the simply connected network cutting load service restoration scheme based on greedy algorithm
(31) if proxy terminal collects overcurrent information, line failure, the intelligence around fault section
Terminal unit controls the switch separating brake corresponding to it, issues Fault Isolation message to proxy terminal after being isolated successfully.
(32) after proxy terminal receives isolation message, network topology model to be restored is established, identify interconnection switch and is counted
Its quantity p constructs interconnection switch collection A, finds out greatest residual capacity in interconnection switch collection AAnd its corresponding interconnection switch
ID。
(33) for proxy terminal using the maximum interconnection switch of the residual capacity as root node, block switch is child node, is carried out
Traversal, referring to Fig. 5 (a), number is node serial number in Fig. 5 (a), and k1 indicates that interconnection switch, k2-k11 indicate each section of load power
Weight coefficient, ergodic process should follow following rule:
1 rank of (33-a) every traversal exports an element, and the latter element is equal to previous element and rear single order traversal is maximum
The sum of load weight coefficient.1 rank refers to belonging to all child nodes of the same father node.
In formula, X0To traverse initial value, XjWith Xj-1The respectively output element of jth rank traversal and -1 rank of jth traversal,
For the peak load weight coefficient in jth rank traversal, calculated according to formula (5).
When (33-b) some node contains multiple child nodes, if accessing the child node of the node, each child node should all
This is accessed.As shown in Fig. 5 (b).When carrying out the 3rd rank traversal,
(33-c) is when carrying out certain rank traversal, if multiple child nodes not totally one father node, by the road of maximum weight
Diameter goes access child node.As shown in Fig. 5 (c), when carrying out the 4th rank traversal, compare K6+K7, K8, K9+K10, it is assumed thatThen accessed node 9.When carrying out the 5th rank traversal, then compare K6+k7, K11, K9+K10 again, and so on.
(33-d) after traversing for several times, XjReach some value, if continuing to traverse, will lead to load total amount is more than that contact is opened
Residual capacity is closed, which is referred to as load excision critical value.
(33-e) or since the limitation of non-interconnected state can not traverse, stops time when reaching load excision critical value
It goes through.The corresponding block switch of end child node in the path that proxy terminal is accessed according to traversing result, control agent terminal is disconnected
It opens, is then closed interconnection switch, service restoration success.
The distribution network failure processing unit based on distributed intelligence that the present invention also provides a kind of, comprising: fault identification module, mould
Type constructs module, statistical module and troubleshooting execution module；
The fault identification module is used to obtain current information at distribution line block switch, identifies and breaks down
Section controls the block switch separating brake of fault section and generates Fault Isolation information and be sent to proxy terminal；
The model construction module is used to be opened in conjunction with existing feeder line topology information with segmentation according to the Fault Isolation message
Off status establishes network topology model to be restored；
The statistical module is used to count the number of interconnection switch in the connected graph that the network topology model to be restored is constituted
Amount and residual capacity；
The troubleshooting execution module is used for quantity and residual capacity according to the interconnection switch, is powered extensive
It is multiple.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only the embodiment of the present invention, are not intended to restrict the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it
It is interior.
Claims (13)
1. a kind of distribution network failure processing method based on distributed intelligence characterized by comprising
(1) current information at distribution line block switch is obtained, identifies the section to break down, controls point of fault section
Duan Kaiguan separating brake simultaneously generates Fault Isolation information and is sent to proxy terminal；
(2) network to be restored is established in conjunction with existing feeder line topology information and block switch state according to the Fault Isolation message
Topological model；
(3) quantity and residual capacity of interconnection switch in the connected graph that the network topology model to be restored is constituted are counted；
(4) according to the quantity and residual capacity of the interconnection switch, it is powered recovery.
2. a kind of distribution network failure processing method based on distributed intelligence according to claim 1, which is characterized in that described
Current information at distribution line block switch is by real-time monitoring terminal acquisition each on feeder line, if existed on feeder line real-time
Monitoring terminal collects overcurrent information, then line failure；
The proxy terminal configuration is at substation exit breaker.
3. a kind of distribution network failure processing method based on distributed intelligence according to claim 1, which is characterized in that described
Fault Isolation information includes: block switch title ID and isolation result mark ISFL, if ISFL=1, expression is isolated successfully；Such as
Fruit ISFL=0 indicates isolation failure.
4. a kind of distribution network failure processing method based on distributed intelligence according to claim 3, which is characterized in that if
Isolation failure, then adjacent sectional switchs separating brake, until being isolated successfully.
5. a kind of distribution network failure processing method based on distributed intelligence according to claim 1, which is characterized in that described
Establish network topology model to be restored, comprising:
The block switch of gate-dividing state is in as root node using fault down stream, remaining block switch is child node, excellent using depth
First ergodic algorithm is traversed, until searching at interconnection switch or end switch, to establish area to be restored network topology
Model.
6. a kind of distribution network failure processing method based on distributed intelligence according to claim 1, which is characterized in that described
Count the quantity and residual capacity of interconnection switch in the connected graph that the network topology model to be restored is constituted, comprising:
Judge whether the network topology model to be restored belongs to connected graph；If it is, the statistics network topology to be restored
Interconnection switch quantity and residual capacity in model construct interconnection switch collection；
If the network topology model to be restored is not belonging to connected graph, if the network topology model to be restored is divided into
The submodel that dry connected graph is constituted, then counts interconnection switch quantity and residual capacity in the submodel, constructs submodel
Interconnection switch collection.
7. a kind of distribution network failure processing method based on distributed intelligence according to claim 6, which is characterized in that described
According to the quantity and residual capacity of the interconnection switch, it is powered recovery, comprising:
If it is 0 that the interconnection switch collection or the submodel interconnection switch, which concentrate interconnection switch quantity, no backup power source can not
Service restoration is completed immediately；
If it is not 0 that the interconnection switch collection or the submodel interconnection switch, which concentrate interconnection switch quantity, according to interconnection switch
Whether the sequence of residual capacity from big to small, analysis interconnection switch residual capacity meet region workload demand；If satisfied, then using
Single interconnection switch service restoration scheme；If not satisfied, then using single interconnection switch cutting load service restoration scheme.
8. a kind of distribution network failure processing method based on distributed intelligence according to claim 7, which is characterized in that described
Using single interconnection switch service restoration scheme, comprising:
Proxy terminal issues reclosing command to interconnection switch, after interconnection switch receives reclosing command, executes closing operation and to generation
It manages terminal and sends fault recovery result confirmation message, the confirmation message includes interconnection switch ID and restoration result mark REFL；
If REFL=1, interconnection switch closing success, service restoration；If REFL=0, interconnection switch, which closes a floodgate, to fail, and reanalyses down
Whether one interconnection switch residual capacity meets region workload demand.
9. a kind of distribution network failure processing method based on distributed intelligence according to claim 7, which is characterized in that described
Using single interconnection switch cutting load service restoration scheme, comprising:
For proxy terminal using the interconnection switch analyzed as root node, block switch is child node, is traversed, 1 rank of every traversal, defeated
An element out:
Wherein, X0To traverse initial value, XjWith Xj-1The respectively output element of jth rank traversal and -1 rank of jth traversal,It is
Peak load weight coefficient in j rank traversal；
When output element reaches load excision critical value, stop traversal；
The corresponding block switch of the end child node in the path that control agent terminal is accessed disconnects, and then executes single interconnection switch
Service restoration scheme；
1 rank refers to all child nodes for belonging to the same father node.
10. a kind of distribution network failure processing method based on distributed intelligence according to claim 9, which is characterized in that institute
It is as follows to state the calculating of peak load weight coefficient:
Wherein, w1、w2And w3The weight factor of level-one, second level and three stage loads is respectively indicated, is met: w1+w2+w3=1 and w1>w2>
w3,
I1、I2And I3It is respectively the level-one, second level and three-level load current of unit feeder line section.
11. a kind of distribution network failure processing method based on distributed intelligence according to claim 9, which is characterized in that
When being traversed, if multiple child nodes are not the same father node, the child node maximum calculated separately under same father node is negative
Lotus weight coefficient chooses the access path that a series of maximum child nodes of calculated value are traversed as the rank.
12. a kind of distribution network failure processing method based on distributed intelligence according to claim 1, which is characterized in that into
In row fault treating procedure, following service restoration target need to be met:
A, it maximizes and restores load power supply:
Wherein, n indicates that fault down stream region feeder line section sum, f are the load total amount to restore electricity in fault down stream region, xiTake 0
Or 1, it indicates that the load of feeder line section si is in and has a power failure or restore state,Indicate the mistake of feeder line section si in fault down stream region
Electric load amount；
B, control switch action frequency, the switch includes block switch and interconnection switch:
Wherein, m indicates the total number of switches on distribution line, and T indicates switch motion number, ti0 or 1 is taken, indicates that switch state is kept
Original state changes.
13. a kind of distribution network failure processing unit based on distributed intelligence characterized by comprising fault identification module, model
Construct module, statistical module and troubleshooting execution module；
The fault identification module is used to obtain the current information at distribution line block switch, identifies the area to break down
Section, controls the block switch separating brake of fault section and generates Fault Isolation information and be sent to proxy terminal；
The model construction module is used for according to the Fault Isolation message, in conjunction with existing feeder line topology information and block switch shape
State establishes network topology model to be restored；
The statistical module be used to count in the connected graph that the network topology model to be restored is constituted the quantity of interconnection switch and
Residual capacity；
The troubleshooting execution module is used for quantity and residual capacity according to the interconnection switch, is powered recovery.
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