CN110048384A - A kind of distribution high reliability self-healing method and system - Google Patents
A kind of distribution high reliability self-healing method and system Download PDFInfo
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- CN110048384A CN110048384A CN201910398196.7A CN201910398196A CN110048384A CN 110048384 A CN110048384 A CN 110048384A CN 201910398196 A CN201910398196 A CN 201910398196A CN 110048384 A CN110048384 A CN 110048384A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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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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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of distribution high reliability self-healing method and systems, comprising the following steps: electrical power distribution automatization system judges whether distribution network line breaks down, and when distribution network line breaks down, then positions the fault section of power distribution network；The distribution network line of failure is once overlapped, the fault section of power distribution network is then repositioned；When the fault section of the power distribution network positioned twice is identical, then the fault section of power distribution network is isolated using self-healing control strategy for electrical power distribution automatization system, the non-faulting section of power distribution network is poured on adjacent distribution network line simultaneously, when the fault section difference of the power distribution network positioned twice, then electrical power distribution automatization system does not execute self-healing control strategy, this method and system can be realized the accurate positionin in distribution network failure section, and then realize the high reliability self-healing of power distribution network.
Description
Technical field
The invention belongs to power distribution network control technique field, it is related to a kind of distribution high reliability self-healing method and system.
Background technique
Power distribution network realizes that the condition of highly reliable self-healing is: first is that accurate, reliable distribution network failure positions；Second is that intelligence is certainly
More it controls.Realize the self-healing of power distribution network, fault location it is accurate particularly important.When fault location when the error occurs, system meeting
Faulty line is poured into adjacent lines by mistake, will cause adjacent lines fault trip, so as to cause fault coverage is expanded.Cause
This, the highly reliable self-healing of Yao Shixian power distribution network first has to the failure precise positioning of power distribution network, then again pours into non-faulting section
Adjacent lines.
The judgement that electrical power distribution automatization system breaks down to distribution network line at present is main according to the current value for flowing through switch
Size to determine whether breaking down.This criterion exist because closing the ring electric current is excessive or switch accidentally point etc. non-distribution line therefore
Barrier, the case where causing system to take for for distribution line failure.
Self Healing Technology more attention after system judges fault section, is incited somebody to action after distribution line breaks down at present
Non-faulting section is transferred to adjacent non-fault line according to self-healing control strategy.And have ignored power distribution network to realize it is highly reliable before
Mention is accurately to judge fault section.The judgement of fault section at present relies primarily on electrical power distribution automatization system according to fault current stream
The path crossed, judges fault section, there is a problem of that system judges fault section mistake using such criterion, when system judges event
After hindering section mistake, faulty line is considered non-faulting section by meeting mistake, when realizing self-healing, can be poured into faulty line
Adjacent route expands scope of power outage so as to cause adjacent lines breaking.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of distribution high reliability self-healing method is provided
And system, this method and system can be realized the accurate positionin in distribution network failure section, and then realize the high reliability of power distribution network
Self-healing.
In order to achieve the above objectives, distribution high reliability self-healing method of the present invention the following steps are included:
Electrical power distribution automatization system judges whether distribution network line breaks down, when distribution network line breaks down, then fixed
The fault section of position power distribution network；
The distribution network line of failure is once overlapped, the fault section of power distribution network is then repositioned；
When the fault section of the power distribution network positioned twice is identical, then electrical power distribution automatization system will using self-healing control strategy
The fault section of power distribution network is isolated, while the non-faulting section of power distribution network being poured on adjacent distribution network line, when
When the fault section difference of the power distribution network positioned twice, then electrical power distribution automatization system does not execute self-healing control strategy.
Electrical power distribution automatization system judges that whether the current curve of main switch and damage curve are identical in substation, work as substation
When the current curve of interior main switch is identical with damage curve, then distribution network line breaks down；When the electricity of main switch in substation
When flow curve and not identical damage curve, then there is no failures for distribution network line.
If the network information to describe troubleshooting includes the number of node and branch and its category of incidence relation, node
The current limit of property, the state of switching node and switch and circuit element；
Assuming that the number of nodes of distribution network is N, the distribution network after number can be by being retouched based on the matrix D of node
It states, wherein D is the adjacency matrix of N × 5, the expression formula of matrix D are as follows:
Wherein, di1It indicates to close for the state of node i, 1,0 indicates to open, di2Indicate the property of node i, di2=1 indicates
The node is operable on-load switch, di2=2 indicate that the node is the inoperable expanding node for malfunction monitoring,
di3And di4Respectively indicate the branch number of associated two branches of node i, di5Indicate the current limit of node i；
The circuitry number of establishing electric network is M, and the information of distribution network branch is described by Matrix C, and Matrix C is a M
× 5 matrixes, the expression of Matrix C are as follows:
Wherein, ci1For the real-time current of branch i, ci2For the property of branch i, ci2=1 indicates power branch, ci2=2 indicate
Edge branch, ci2=3 indicate other branches, ci3For the resistance of branch I, ci4Indicate the current limit of branch i, ci5Indicate branch i
Corresponding isolation branch number when failure.
When single radial line is without interconnection switch, then the list radial line cannot achieve N-1 load and turn to supply completely；
For the 10kV power distribution network of closed type structure, open type operation, in route head end fault outage, can be opened by contact
Close the maximum load rate TMax to adjacent segment interconnector transfer load, when route operates normally are as follows:
Wherein, IRevFor the maximum load current that may be shifted when the stoppage in transit of adjacent segment line fault, ILimFor corresponding line
The conducting wire of road safe current limit value allows current-carrying capacity；
According to all 10kV routes and its corresponding communication relationship, the adjacent segment interconnector for calculating every route is provided
Electric current spend in advance.
For more interconnectors, calculating process that electric current provided by the adjacent segment interconnector of every route is spent in advance are as follows:
1) electric current for first calculating every adjacent segment interconnector is spent in advance, when a certain time interconnector of the adjacent segment of any route
When provided electric current spends the maximum current greater than the route in advance, then the route can be realized N-1 load and turn to supply completely, otherwise, should
Route can not achieve N-1 load and turn to supply completely, turn completely when single time interconnector of all adjacent segments all cannot achieve N-1 load
For then going to step 2)；
2) it according to wiring construction situation, is calculated according to thering are two adjacent segment interconnectors to turn band simultaneously, is joined when two
When the provided electric current in winding thread road the sum of spends the maximum current for being greater than the route in advance, then the route can be realized N-1 load and turn completely
For otherwise, cannot achieve N-1 load and turn to supply completely, when the two interconnector combinations of all possible adjacent segment cannot achieve
N-1 load turn completely for when, then go to step 3)；
3) it according to wiring construction situation, is calculated according to thering are three adjacent segment interconnectors to turn band simultaneously, is joined when three
When the provided electric current in winding thread road the sum of spends the maximum current for being greater than the route in advance, then the route can be realized N-1 load and turn completely
For otherwise, which cannot achieve N-1 load and turn to supply completely.
Distribution high reliability self-healing system of the present invention includes:
First locating module works as distribution for judging whether distribution network line breaks down by electrical power distribution automatization system
When net line failure, then the fault section of power distribution network is positioned；
Second locating module is once overlapped for the distribution network line to failure, then repositions power distribution network
Fault section；
Self-healing control system is connected with the first locating module and the second locating module, the distribution for that ought position twice
When the fault section of net is identical, the fault section of power distribution network is isolated using self-healing control strategy for electrical power distribution automatization system,
The non-faulting section of power distribution network is poured on adjacent distribution network line simultaneously, when the fault section of the power distribution network positioned twice
When different, then electrical power distribution automatization system does not execute self-healing control strategy.
The invention has the following advantages:
Distribution high reliability self-healing method of the present invention and system when specific operation, electrical power distribution automatization system according to
The current value of excess flow switch judges whether distribution network line breaks down, when distribution network line breaks down, then to failure
Distribution network line is once overlapped, and the fault section of distribution line is then repositioned, when the event of the power distribution network positioned twice
When barrier section is identical, then illustrate that the fault section of the power distribution network of positioning is correctly, that is, self-healing control strategy to can be used by distribution
The non-faulting section of net is poured on adjacent distribution network line, and the fault section of power distribution network is isolated, it should be noted that this
Invention by the way of positioning twice, accurately to realize the positioning of the fault section of power distribution network, effectively avoids route because of cyclization
Electric current is excessive or switchs the logicalnot circuits failures such as malfunction, avoids the problem that fault section misjudgment and leads to adjacent lines breaking,
The widened failure of fault section is avoided simultaneously, while when the damage curve difference positioned twice, then electrical power distribution automatization system is not
Execute self-healing control strategy.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
Below with reference to embodiment, the invention will be described in further detail:
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
With reference to Fig. 1, distribution high reliability self-healing method of the present invention the following steps are included:
Electrical power distribution automatization system judges whether distribution network line breaks down, when distribution network line breaks down, then fixed
The fault section of position power distribution network；
The distribution network line of failure is once overlapped, the fault section of power distribution network is then repositioned；
When the fault section of the power distribution network positioned twice is identical, then electrical power distribution automatization system will using self-healing control strategy
The fault section of power distribution network is isolated, while the non-faulting section of power distribution network being poured on adjacent distribution network line, when
When the fault section difference of the power distribution network positioned twice, then electrical power distribution automatization system does not execute self-healing control strategy.
Electrical power distribution automatization system judges that whether the current curve of main switch and damage curve are identical in substation, work as substation
When the current curve of interior main switch is identical with damage curve, then distribution network line breaks down；When the electricity of main switch in substation
When flow curve and not identical damage curve, then there is no failures for distribution network line.
If the network information to describe troubleshooting includes the number of node and branch and its category of incidence relation, node
The current limit of property, the state of switching node and switch and circuit element；
Assuming that the number of nodes of distribution network is N, the distribution network after number can be by being retouched based on the matrix D of node
It states, wherein D is the adjacency matrix of N × 5, the expression formula of matrix D are as follows:
Wherein, di1It indicates to close for the state of node i, 1,0 indicates to open, di2Indicate the property of node i, di2=1 indicates
The node is operable on-load switch, di2=2 indicate that the node is the inoperable expanding node for malfunction monitoring,
di3And di4Respectively indicate the branch number of associated two branches of node i, di5Indicate the current limit of node i；
The circuitry number of establishing electric network is M, and the information of distribution network branch is described by Matrix C, and Matrix C is a M
× 5 matrixes, the expression of Matrix C are as follows:
Wherein, ci1For the real-time current of branch i, ci2For the property of branch i, ci2=1 indicates power branch, ci2=2 indicate
Edge branch, ci2=3 indicate other branches, ci3For the resistance of branch I, ci4Indicate the current limit of branch i, ci5Indicate branch i
Corresponding isolation branch number when failure.
When single radial line is without interconnection switch, then the list radial line cannot achieve N-1 load and turn to supply completely；
For the 10kV power distribution network of closed type structure, open type operation, in route head end fault outage, can be opened by contact
Close the maximum load rate TMax to adjacent segment interconnector transfer load, when route operates normally are as follows:
Wherein, IRevFor the maximum load current that may be shifted when the stoppage in transit of adjacent segment line fault, ILimFor corresponding line
The conducting wire of road safe current limit value allows current-carrying capacity；
According to all 10kV routes and its corresponding communication relationship, the adjacent segment interconnector for calculating every route is provided
Electric current spend in advance.
For more interconnectors, calculating process that electric current provided by the adjacent segment interconnector of every route is spent in advance are as follows:
1) electric current for first calculating every adjacent segment interconnector is spent in advance, when a certain time interconnector of the adjacent segment of any route
When provided electric current spends the maximum current greater than the route in advance, then the route can be realized N-1 load and turn to supply completely, otherwise, should
Route can not achieve N-1 load and turn to supply completely, turn completely when single time interconnector of all adjacent segments all cannot achieve N-1 load
For then going to step 2)；
2) it according to wiring construction situation, is calculated according to thering are two adjacent segment interconnectors to turn band simultaneously, is joined when two
When the provided electric current in winding thread road the sum of spends the maximum current for being greater than the route in advance, then the route can be realized N-1 load and turn completely
For otherwise, cannot achieve N-1 load and turn to supply completely, when the two interconnector combinations of all possible adjacent segment cannot achieve
N-1 load turn completely for when, then go to step 3)；
3) it according to wiring construction situation, is calculated according to thering are three adjacent segment interconnectors to turn band simultaneously, is joined when three
When the provided electric current in winding thread road the sum of spends the maximum current for being greater than the route in advance, then the route can be realized N-1 load and turn completely
For otherwise, which cannot achieve N-1 load and turn to supply completely.
When selecting feasible mutually mutually band scheme, although actual power distribution network connection type is more complicated, load turns
Supply is overall to follow following basic principle:
A) it should realize as far as possible by the complete load transfer of measuring and calculating feeder line, that is, turn to be close to or up to for the ratio of load
100%.
Since less load excision can reduce to the greatest extent due to failure or maintenance bring economic loss, turn for negative
Lotus loss late is most important turn for 0% can get in touch with the customer charge that can regulate and control on demand for target according to adjacent segment
The standby current nargin of route determines the size for reducing and turning for load.
B) the switch number of operations of the mutual band of mutual conductance is minimum.
When operating interconnection switch and excessive block switch number, it is not only not easy to Utilities Electric Co. operations staff operation, is expanded
The probability of big operation error, the recovery time of customer power supply may also be unable to satisfy requirement, but also can make medium voltage distribution network
Structure change it is excessive, after Failure elimination or maintenance, increase more difficulty to distribution network restoration to the former method of operation.
C) load of every feedback line is balanced as far as possible after load transfer, and the load factor for interior each main transformer of standing is equal as far as possible
Weighing apparatus.
D) turn to meet the requirements for the quality of voltage of each node of rear distribution line.
E) turn small as far as possible for rear power distribution network active power loss or Network Loss Rate, realize economical operation.
Consider to turn to supply to the load of end line and spare margin constraints, turn for the node voltage constraint to end line, mutual conductance
The switch number of operations constraint of mutual band, the constraint of feeder load Equilibrium constraints, main transformer load factor, main transformer load factor are balanced
Constraint turns for various constraint conditions such as the constraint of load resection, power distribution automation switch operation constraint and economical operation constraints, can
Constraint condition is formed normalization objective function, by optimization algorithms such as simulations, determine that reasonable, optimization power distribution network mutually falls
Mutually band scheme.
Distribution high reliability self-healing system of the present invention includes:
First locating module works as distribution for judging whether distribution network line breaks down by electrical power distribution automatization system
When net line failure, then the fault section of power distribution network is positioned；
Second locating module is once overlapped for the distribution network line to failure, then repositions power distribution network
Fault section；
Self-healing control system is connected with the first locating module and the second locating module, the distribution for that ought position twice
When the fault section of net is identical, the fault section of power distribution network is isolated using self-healing control strategy for electrical power distribution automatization system,
The non-faulting section of power distribution network is poured on adjacent distribution network line simultaneously, when the fault section of the power distribution network positioned twice
When different, then electrical power distribution automatization system does not execute self-healing control strategy.
The specific work process of the distribution high reliability self-healing system is above-mentioned to be had been given, this is not repeated to illustrate.
It should be noted that the present invention is focusing on:
1) not only judge whether distribution line breaks down according to the size of the current value of switch, but pass through judgement
The criterion of line fault is that the current curve of main switch and damage curve match in substation, to determine line fault, is avoided
System occurs causing system to be considered line because electric current leads to the non-distribution line failures such as switch malfunctions or switch accidentally divides greatly
The case where road fault trip, occurs；
2) judgement in distribution network failure section increases secondary-confirmation fault section on the basis of the judgement of former fault section
Link, increase secondary failure section judgement primarily to system infer fault section accuracy reaffirm,
To reduce the probability that electrical power distribution automatization system judges distribution section by accident, to greatly improve the reliability of power distribution network self-healing, specifically
Implementation procedure are as follows: after system is judged as that distribution line breaks down according to damage curve, electrical power distribution automatization system is right for the first time
Distribution Network Failure is positioned, and after the completion of positioning first time, electrical power distribution automatization system can once be overlapped faulty line, weight
Distribution Network Failure is positioned again after conjunction, when the fault section of first time distribution positioning and the faulty section of second of distribution positioning
Between it is identical when, electrical power distribution automatization system thinks that fault section positioning is correct, thus using self-healing control strategy, by fault section every
From non-faulting section to be poured into adjacent route.
The present invention trial operation in one area of Beijing Power Network successfully avoids the Loop Closing Operation of distribution from making in use process
At switch malfunction probability, it is more accurate to the judgement of the mistake point of switch, electrical power distribution automatization system misses distribution section
The probability sentenced lowers significantly, to substantially increase power distribution network self-healing reliability.
It should be noted that for the aforementioned method embodiment, for simple description, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described, because according to
According to the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know that,
The embodiments described in the specification are all preferred embodiments, and related movement is not necessarily essential to the invention.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. a kind of distribution high reliability self-healing method, which comprises the following steps:
Electrical power distribution automatization system judges whether distribution network line breaks down, and when distribution network line breaks down, then positioning is matched
The fault section of power grid；
The distribution network line of failure is once overlapped, the fault section of power distribution network is then repositioned；
When the fault section of the power distribution network positioned twice is identical, then electrical power distribution automatization system uses self-healing control strategy by distribution
The fault section of net is isolated, while the non-faulting section of power distribution network being poured on adjacent distribution network line, when twice
When the fault section difference of the power distribution network of positioning, then electrical power distribution automatization system does not execute self-healing control strategy.
2. distribution high reliability self-healing method according to claim 1, which is characterized in that electrical power distribution automatization system judgement becomes
Whether the current curve of main switch and damage curve are identical in power station, when the current curve and damage curve of main switch in substation
When identical, then distribution network line breaks down；When the current curve and not identical damage curve of main switch in substation, then match
There is no failures for power network line.
3. distribution high reliability self-healing method according to claim 1, which is characterized in that set to describe troubleshooting
The network information include node and branch number and its incidence relation, the attribute of node, the state of switching node and switch and
The current limit of circuit element；
Assuming that the number of nodes of distribution network is N, the distribution network after number can by being described based on the matrix D of node,
In, D is the adjacency matrix of N × 5, the expression formula of matrix D are as follows:
Wherein, di1It indicates to close for the state of node i, 1,0 indicates to open, di2Indicate the property of node i, di2=1 indicates the section
Point is operable on-load switch, di2=2 indicate that the node is the inoperable expanding node for malfunction monitoring, di3With
di4Respectively indicate the branch number of associated two branches of node i, di5Indicate the current limit of node i；
The circuitry number of establishing electric network is M, and the information of distribution network branch is described by Matrix C, and Matrix C is a square of M × 5
Battle array, the expression of Matrix C are as follows:
Wherein, ci1For the real-time current of branch i, ci2For the property of branch i, ci2=1 indicates power branch, ci2=2 indicate edge
Branch, ci2=3 indicate other branches, ci3For the resistance of branch I, ci4Indicate the current limit of branch i, ci5Indicate branch i failure
When corresponding isolation branch number.
4. distribution high reliability self-healing method according to claim 3, which is characterized in that when single radial line is opened without contact
It closes, then the list radial line cannot achieve N-1 load and turn to supply completely；
For closed type structure, open type operation 10kV power distribution network, in route head end fault outage, can by interconnection switch to
Adjacent segment interconnector transfer load, maximum load rate TMax when route operates normally are as follows:
Wherein, IRevFor the maximum load current that may be shifted when the stoppage in transit of adjacent segment line fault, ILimFor corresponding line peace
The conducting wire of total current limit value allows current-carrying capacity；
According to all 10kV routes and its corresponding communication relationship, electricity provided by the adjacent segment interconnector of every route is calculated
The pre- degree of stream.
5. distribution high reliability self-healing method according to claim 1, which is characterized in that for more interconnectors, every
The calculating process that electric current provided by the adjacent segment interconnector of route is spent in advance are as follows:
1) electric current for first calculating every adjacent segment interconnector is spent in advance, when a certain time interconnector of the adjacent segment of any route is mentioned
When spending the maximum current greater than the route in advance for electric current, then the route can be realized N-1 load and turn to supply completely, otherwise, the route
It can not achieve N-1 load to turn to supply completely, turn to supply completely when single time interconnector of all adjacent segments all cannot achieve N-1 load, then
Go to step 2)；
2) it according to wiring construction situation, is calculated according to thering are two adjacent segment interconnectors to turn band simultaneously, when two interconnections
When the provided electric current in road the sum of spends the maximum current for being greater than the route in advance, then the route can be realized N-1 load and turn to supply completely, no
Then, it cannot achieve N-1 load to turn to supply completely, be born when the two interconnector combinations of all possible adjacent segment cannot achieve N-1
Lotus turn completely for when, then go to step 3)；
3) it according to wiring construction situation, is calculated according to thering are three adjacent segment interconnectors to turn band simultaneously, when three interconnections
When the provided electric current in road the sum of spends the maximum current for being greater than the route in advance, then the route can be realized N-1 load and turn to supply completely, no
Then, which cannot achieve N-1 load and turns to supply completely.
6. a kind of distribution high reliability self-healing system characterized by comprising
First locating module, for judging whether distribution network line breaks down by electrical power distribution automatization system, when distribution cable
When road is broken down, then the fault section of power distribution network is positioned；
Second locating module is once overlapped for the distribution network line to failure, then repositions the failure of power distribution network
Section；
Self-healing control system is connected with the first locating module and the second locating module, the power distribution network for that ought position twice
When fault section is identical, the fault section of power distribution network is isolated using self-healing control strategy for electrical power distribution automatization system, simultaneously
The non-faulting section of power distribution network is poured on adjacent distribution network line, when the fault section of the power distribution network positioned twice is different
When, then electrical power distribution automatization system does not execute self-healing control strategy.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751655A (en) * | 2020-05-29 | 2020-10-09 | 深圳供电局有限公司 | Fault self-healing method and device for distribution line, computer equipment and storage medium |
| CN112561248A (en) * | 2020-11-27 | 2021-03-26 | 国电南瑞南京控制系统有限公司 | Intelligent analysis and control method and system for power failure plan of main and distribution network dispatching |
| CN113258570A (en) * | 2021-06-24 | 2021-08-13 | 广东电网有限责任公司中山供电局 | Switching method and device for self-rotating power function of 10kV power distribution network line |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801143A (en) * | 2012-09-04 | 2012-11-28 | 山西省电力公司大同供电分公司 | Device and method for automatically isolating automatic system line fault in power distribution network |
| CN102998597A (en) * | 2012-12-28 | 2013-03-27 | 辽宁省电力有限公司沈阳供电公司 | Method for accelerating power distribution network fault tolerance location |
| CN105093062A (en) * | 2015-07-31 | 2015-11-25 | 上海理工大学 | Comprehensive fault positioning method of transmission line |
| CN106443331A (en) * | 2016-09-08 | 2017-02-22 | 中铁第四勘察设计院集团有限公司 | Pulse method based feed catenary fault locating system |
| CN106786425A (en) * | 2017-01-16 | 2017-05-31 | 中国电力科学研究院 | A kind of coincidence formula failure separation method and system on the spot |
| CN107561411A (en) * | 2017-09-28 | 2018-01-09 | 国网北京市电力公司 | The determination method and device of electric network fault |
| CN107872058A (en) * | 2017-11-22 | 2018-04-03 | 深圳供电局有限公司 | A kind of distribution integration protection method for merging circuit self-healing |
| CN109378804A (en) * | 2018-10-24 | 2019-02-22 | 珠海许继芝电网自动化有限公司 | A kind of examination of distribution network failure is from more fault-tolerance processing method and system |
-
2019
- 2019-05-14 CN CN201910398196.7A patent/CN110048384B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801143A (en) * | 2012-09-04 | 2012-11-28 | 山西省电力公司大同供电分公司 | Device and method for automatically isolating automatic system line fault in power distribution network |
| CN102998597A (en) * | 2012-12-28 | 2013-03-27 | 辽宁省电力有限公司沈阳供电公司 | Method for accelerating power distribution network fault tolerance location |
| CN105093062A (en) * | 2015-07-31 | 2015-11-25 | 上海理工大学 | Comprehensive fault positioning method of transmission line |
| CN106443331A (en) * | 2016-09-08 | 2017-02-22 | 中铁第四勘察设计院集团有限公司 | Pulse method based feed catenary fault locating system |
| CN106786425A (en) * | 2017-01-16 | 2017-05-31 | 中国电力科学研究院 | A kind of coincidence formula failure separation method and system on the spot |
| CN107561411A (en) * | 2017-09-28 | 2018-01-09 | 国网北京市电力公司 | The determination method and device of electric network fault |
| CN107872058A (en) * | 2017-11-22 | 2018-04-03 | 深圳供电局有限公司 | A kind of distribution integration protection method for merging circuit self-healing |
| CN109378804A (en) * | 2018-10-24 | 2019-02-22 | 珠海许继芝电网自动化有限公司 | A kind of examination of distribution network failure is from more fault-tolerance processing method and system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751655A (en) * | 2020-05-29 | 2020-10-09 | 深圳供电局有限公司 | Fault self-healing method and device for distribution line, computer equipment and storage medium |
| CN112561248A (en) * | 2020-11-27 | 2021-03-26 | 国电南瑞南京控制系统有限公司 | Intelligent analysis and control method and system for power failure plan of main and distribution network dispatching |
| CN113258570A (en) * | 2021-06-24 | 2021-08-13 | 广东电网有限责任公司中山供电局 | Switching method and device for self-rotating power function of 10kV power distribution network line |
| CN113258570B (en) * | 2021-06-24 | 2021-09-24 | 广东电网有限责任公司中山供电局 | Switching method and device for self-rotating power function of 10kV power distribution network line |
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