CN108631298A - A kind of unit style distribution network restoration strategy-generating method based on load balancing distribution - Google Patents

A kind of unit style distribution network restoration strategy-generating method based on load balancing distribution Download PDF

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CN108631298A
CN108631298A CN201810294155.9A CN201810294155A CN108631298A CN 108631298 A CN108631298 A CN 108631298A CN 201810294155 A CN201810294155 A CN 201810294155A CN 108631298 A CN108631298 A CN 108631298A
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strategy
distribution network
load balancing
recovery
unit style
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CN201810294155.9A
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CN108631298B (en
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韩冰
时金媛
张志昌
孟勇亮
赵家庆
苏大威
孙世明
余璟
苏标龙
吕洋
葛文林
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State Grid Jiangsu Electric Power Co Ltd
NARI Group Corp
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
Suzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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State Grid Jiangsu Electric Power Co Ltd
NARI Group Corp
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
Suzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention discloses a kind of unit style distribution network restoration strategy-generating method based on load balancing distribution, steps 1:System proceeds by fault recovery;Step 2:Matched fault recovery scheme is searched for by experts database matching algorithm;Step 3:The recovery that load balancing distribution is automatically generated by critical path method handles strategy;Step 4:To all recovery policies that above-mentioned algorithm generates, its reliability weighted value and running optimizatin weighted value are calculated, compares optimal recovery policy weighted scoring as a result, confirming the optimal executable strategy that current failure restores;Step 5:Start to execute optimal policy, and remaining strategy is stored according to weighted scoring ranking results in database, as alternative scheme.The present invention promotes the optimization height of distribution network operation, the performance of effect promotes the satisfaction of user to fundamentally improve power supply reliability.

Description

A kind of unit style distribution network restoration strategy-generating method based on load balancing distribution
Technical field
The present invention relates to a kind of unit style distribution network restoration strategy-generating methods based on load balancing distribution, belong to distribution Network technology field.
Background technology
The safe and reliable operation of power distribution network is directly related to social production and people’s lives, once event occurs for power distribution network Barrier will live to people and bring great inconvenience.It is higher and higher with the degree of automation of power distribution network, it is extensive to carry out distribution network failure It is to improve security of distribution network, the important leverage of economy and an important component of power distribution automation again.
Currently, distribution network failure recovery technology is mainly optimized using the alignments of traditional load factor size at present Restore.But with reasons such as the difference of power distribution network customer charge type, the differences of load level, current power distribution network is caused to be powered Recovery policy is increasingly sophisticated, and original tupe can not adapt to the requirement of existing power distribution network power supply.
Invention content
Purpose:In order to overcome the deficiencies in the prior art, the present invention to provide a kind of list distributed based on load balancing Member prepares power system restoration strategy-generating method.
Technical solution:In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of unit style distribution network restoration strategy-generating method based on load balancing distribution, includes the following steps:
Step 1:System proceeds by fault recovery;
Step 2:Matched fault recovery scheme is searched for by experts database matching algorithm;
Step 3:The recovery that load balancing distribution is automatically generated by critical path method handles strategy;
Step 4:To all recovery policies that above-mentioned algorithm generates, calculates its reliability weighted value and weighted with running optimizatin Value compares optimal recovery policy weighted scoring as a result, confirming the optimal executable strategy that current failure restores;
Step 5:Start to execute optimal policy, and remaining strategy be stored according to weighted scoring ranking results in database, As alternative scheme;
Step 6:Whether determination strategy runs succeeded, if being not carried out success, is retaining current operation part equipment The method of operation under, automatically generate reliable recovery policy, and implementation strategy;
Step 7:Strategy execution success is handled, Petri Nets are completed, troubleshooting report is formed, all information is remembered It employs and is used in accident post analysis and experts database upgrading.
Preferably, the step 2 includes the following steps:
2.1:Experts database generates, and is carried out entirely by conventional operation mode to unit style power distribution network and misoperation mode Cycle preview analysis, and the medelling that the optimization under different running method restores is obtained to all preview analysis results and handles strategy It is stored in matching search when experts database occurs for failure;
2.2:Matching search, using data Method of Fuzzy Matching, including operation data matching, fault type matching, section Mode matches, and ensures the accuracy of Trouble Match;
2.3:After completing matching search, the experts database processing logic of the condition of satisfaction is checked whether there is, if so, then obtaining special Family's library optimization processing strategy is added optimal policy and compares queue;If not having experts database processing logic, experts database strategy is abandoned.
Preferably, the data source of the method for operation in system operation real data and assists increasing theoretical meter Completion mode of the calculation value as abnormal conditions.
Preferably, Strategy Auto generation is extensive using the distribution network failure based on critical path method in the step 3 Multiple policy automatic generating method generates.
Preferably, reliability weighted value Consideration has turn rear power source loads rate of confession in the step 4;Turn after supplying Whether more power supply natures of all more power supply loads on circuit, including the more power supply loads of detection still have more power supplys, more power supplys Property whether reliably such as plant stand, same to busbar, same to feeder line;Turn for switching manipulation reliability, including switch it is whether controllable, it is distant Control success rate;Turn power supply source property, including:Main electric network source, distributed generation resource;Turn power supply source reliability, including turn power supply source, Turn the failure rate for circuit;Turn for load character and by weather influence factor.
Preferably, running optimizatin weighted value considers that the analysis of wire line damage, sharing of load are balanced in the step 4 Degree factor.
Advantageous effect:A kind of unit style distribution network restoration strategy generating side based on load balancing distribution provided by the invention Method, this method make full use of management advantage of the unit style pattern to electricity distribution network model, propose a kind of based on load balancing distribution The realization of unit style distribution network restoration strategy-generating method, the technical method can solve the non-faulting region confession of Complicated Distribution Network Electric recovery demand, and the recovery policy generated time that the calculating time is fast, complicated, can be ignored in disposed of in its entirety logic, meet The efficient requirement of distribution network failure processing.Therefore the unit style power distribution network service restoration based on load balancing distribution optimizes plan Automatic generation method is omited on the basis of ensureing safety and stability, the optimization height of distribution network operation, the performance of effect are promoted, thus from root Power supply reliability is improved on this, promotes the satisfaction of user.
Description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Specific implementation mode
The present invention is further described below in conjunction with the accompanying drawings.
Unit style power distribution network service restoration optimisation strategy automatic generation method based on load balancing distribution uses medelling With the tupe that Strategy Auto is combined, automatic identification Petri Nets mode meets power demands.
In unit style power distribution network service restoration optimisation strategy automatic generation method based on load balancing distribution at medelling Reason strategy by the method for operation to unit style power distribution network carry out preview analysis obtain optimization restore medelling handle strategy deposit Enter matching search when experts database occurs for failure;Strategy Auto is generated automatically generates load balancing point using critical path method The recovery processing strategy matched.
Automatic identification in unit style power distribution network service restoration optimisation strategy automatic generation method based on load balancing distribution Petri Nets mode refers to when breaking down, by meeting at current failure in experts database matching algorithm search expert library The recovery policy of reason, the recovery policy of load balancing distribution is automatically generated by critical path method, and is counted respectively to two kinds of strategies Reliability weighted value and running optimizatin weighted value are calculated, optimal recovery policy is compared, current failure is confirmed as and restores executable strategy.
Reliability adds in unit style power distribution network service restoration optimisation strategy automatic generation method based on load balancing distribution Weights Consideration, which has, to be turned for rear power source loads rate, turns (to detect more for more power supply natures of all more power supply loads on rear circuit Whether power supply load still has more power supplys, and whether the property of more power supplys is reliably such as plant stand, same to busbar, with feeder line etc..), turn For switching manipulation reliability (switch whether controllable, the factors such as successful rate of remote control), turn power supply source property (main electric network source, point Cloth power supply etc.) with reliability (turn power supply source, turn for circuit failure rate), turn for factors such as load characters;Running optimizatin adds Weights consider the factors such as main wire line damage analysis, sharing of load equilibrium degree.
Due to using in unit style power distribution network service restoration optimisation strategy automatic generation method based on load balancing distribution Unit style distribution, equipment amount is few in unit, therefore, to the complex search of recovery policy, the analysis of advanced application calculate etc. at To be possible, and there is no not convergence problems.The calculating time is fast, can be ignored in disposed of in its entirety logic, meets distribution network failure The efficient requirement of processing.
Unit style power distribution network service restoration optimisation strategy automatic generation method based on load balancing distribution is in final strategy Aspect is executed, it, can be on the method for operation basis for currently having operated equipment component if encountering operation strategy executes failure On, automatically generate reliable fail-over policy.The processing mode can operate to avoid the division repeatedly of switch, ensure equipment sheet Body performance.Trusted recovery policy section is being automatically generated, using strategies generating algorithm, recovery policy is capable of safety and stability It executes.
As shown in Figure 1, a kind of unit style distribution network restoration strategy-generating method based on load balancing distribution, detailed process It is described as follows:
Step 1:System proceeds by fault recovery.
Step 2:Matched fault recovery scheme is searched for by experts database matching algorithm.
Experts database is generated carries out complete alternation by conventional operation mode to unit style power distribution network and misoperation mode (running mode data is from system operation real data and assists increasing calculated value as abnormal conditions for preview analysis Completion mode), and the medelling processing strategy that the optimization under different running method restores is obtained to all preview analysis results and is deposited Enter matching search when experts database occurs for failure.
A variety of data fuzzy matching such as matching search is matched using operation data matching, fault type, section mode matches Method ensures the accuracy of Trouble Match.
After completing matching search, the experts database processing logic of the condition of satisfaction is checked whether there is, if so, then obtaining experts database Optimization processing strategy is added optimal policy comparison queue and (needs to carry out under the current method of operation strategy using experts database strategy Processing verification and fine tuning, ensure the feasibility of processing strategy).If not having experts database processing logic, experts database strategy is abandoned.
Step 3:The recovery that load balancing distribution is automatically generated by critical path method handles strategy.
Strategy Auto is generated to be generated using the distribution network failure recovery policy automatic generation method based on critical path method, should The characteristics of method is to calculate convergence, and arithmetic speed is fast.When using unit style distribution network model, due to the unit in modelling It is independent so as to calculate dimension and substantially reduce, the calculating time further shortened, improve the accuracy of calculating.
Step 4:All recovery policies generated to above-mentioned algorithm calculate its reliability weighted value and running optimizatin weighted value, Optimal recovery policy weighted scoring is compared as a result, confirming the optimal executable strategy that current failure restores.
Reliability weighted value Consideration have turn for a rear power source loads rate, turn on rear circuit all more power supply loads it is more Power supply natures (detect whether more power supply loads still have more power supplys, whether the property of more power supplys is reliably such as plant stand, with female Line, with feeder line etc..), turn the reliability (switch whether controllable, the factors such as successful rate of remote control) for switching manipulation, turn power supply source Matter (main electric network source, distributed generation resource etc.) and reliability (turn power supply source, turn the failure rate for circuit), turn for load character with And by factors such as weather influence factors;Running optimizatin weighted value considers main wire line damage analysis, sharing of load equilibrium degree etc. Factor.
Step 5:Start to execute optimal policy, and remaining strategy be stored according to weighted scoring ranking results in database, As alternative scheme.
Step 6:Whether determination strategy runs succeeded, if being not carried out success, is retaining current operation part equipment The method of operation under, automatically generate reliable recovery policy, and implementation strategy.
Patent of the present invention especially emphasizes that the method for operation for retaining current operation part equipment, main purpose are here Division number in the switch short time is reduced, ensures equipment dependability.Therefore after encountering switching manipulation failure, not at the first time Using the spare processing strategy of original generation, although spare processing degree of testing the speed is fast, there may be the repetition divisions of switch to ask Topic especially encounters a wide range of load transfer in the case of large-area power-cuts, due to Operation switch enormous amount, switching manipulation number It is fewer to measure repetitive operation, it will more early completion fault recovery.In addition spare strategy is generated it is also possible to bringing not using original The problems such as can restoring the expansion in region.It is quick benefit on the basis of original execution step using fast automatic strategy generating mode Strategy is filled, since it is without complicated mathematical operation, strategy itself, which generates, can meet real-time requirement, in addition the area to having restored Domain, can be by the minimum of irrecoverable area reduction without operating repeatedly, while can reduce the power failure repeatedly to user, carries High user satisfaction.
Step 7:Strategy execution success is handled, Petri Nets are completed, troubleshooting report is formed, all information is remembered It employs and is used in accident post analysis and experts database upgrading.
The above is only a preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (6)

1. a kind of unit style distribution network restoration strategy-generating method based on load balancing distribution, it is characterised in that:Including as follows Step:
Step 1:System proceeds by fault recovery;
Step 2:Matched fault recovery scheme is searched for by experts database matching algorithm;
Step 3:The recovery that load balancing distribution is automatically generated by critical path method handles strategy;
Step 4:To all recovery policies that above-mentioned algorithm generates, its reliability weighted value and running optimizatin weighted value are calculated, than To optimal recovery policy weighted scoring as a result, confirming the optimal executable strategy that current failure restores;
Step 5:Start to execute optimal policy, and remaining strategy is stored according to weighted scoring ranking results in database, as Alternative scheme;
Step 6:Whether determination strategy runs succeeded, if being not carried out success, in the fortune for retaining current operation part equipment Under line mode, reliable recovery policy, and implementation strategy are automatically generated;
Step 7:Strategy execution success is handled, Petri Nets are completed, troubleshooting report is formed, all information is recorded and is used It is used in accident post analysis and experts database upgrading.
2. a kind of unit style distribution network restoration strategy-generating method based on load balancing distribution according to claim 1, It is characterized in that:The step 2 includes the following steps:
2.1:Experts database generates, and complete alternation is carried out by conventional operation mode to unit style power distribution network and misoperation mode Preview analysis, and the medelling processing strategy deposit that the optimization under different running method restores is obtained to all preview analysis results Matching search when experts database occurs for failure;
2.2:Matching search, using data Method of Fuzzy Matching, including operation data matching, fault type matching, section mode Matching, ensures the accuracy of Trouble Match;
2.3:After completing matching search, the experts database processing logic of the condition of satisfaction is checked whether there is, if so, then obtaining experts database Optimization processing strategy is added optimal policy and compares queue;If not having experts database processing logic, experts database strategy is abandoned.
3. a kind of unit style distribution network restoration strategy-generating method based on load balancing distribution according to claim 2, It is characterized in that:The data source of the method for operation is in system operation real data and assists increasing calculated value as different The completion mode of reason condition.
4. a kind of unit style distribution network restoration strategy-generating method based on load balancing distribution according to claim 1, It is characterized in that:Strategy Auto generates automatic using the distribution network failure recovery policy based on critical path method in the step 3 Generation method generates.
5. a kind of unit style distribution network restoration strategy-generating method based on load balancing distribution according to claim 1, It is characterized in that:There is reliability weighted value Consideration in the step 4 turns to supply rear power source loads rate;Turn for owning on rear circuit Whether more power supply natures of more power supply loads, including the more power supply loads of detection still have more power supplys, and whether the property of more power supplys Reliably such as plant stand, same to busbar, same to feeder line;Turn the reliability for switching manipulation, including switchs whether controllable, successful rate of remote control; Turn power supply source property, including:Main electric network source, distributed generation resource;Turn power supply source reliability, including turns power supply source, turns for circuit Failure rate;Turn for load character and by weather influence factor.
6. a kind of unit style distribution network restoration strategy-generating method based on load balancing distribution according to claim 1, It is characterized in that:Running optimizatin weighted value considers the analysis of wire line damage, sharing of load equilibrium degree factor in the step 4.
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