CN107292452A - A kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network - Google Patents
A kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network Download PDFInfo
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- CN107292452A CN107292452A CN201710603350.0A CN201710603350A CN107292452A CN 107292452 A CN107292452 A CN 107292452A CN 201710603350 A CN201710603350 A CN 201710603350A CN 107292452 A CN107292452 A CN 107292452A
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Abstract
The present invention relates to a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network, including calculate comprehensive cost and reliability index when not configuring automation, the allocation optimum scheme under calculating different condition, output allocation optimum scheme.The comprehensive cost and reliability index when not configuring automation are calculated, according to distribution network track data, is calculated not configuring comprehensive cost and reliability index during automation；The allocation optimum scheme under different condition is calculated, respectively in the whole config failure indicators of key node, and when backbone block switch and distant tie switches allocation wireless three, the allocation optimum scheme under fault detector difference configuration number in addition to key node is calculated；Allocation optimum scheme is exported, the allocation optimum scheme under the different condition obtained by calculating is compared, and allocation plan is exported according to actual conditions.The present invention provides method accurately, efficiently, easy for the planning of solution mountain area distribution power automation terminal and optimization allocation.
Description
Technical field
It is especially a kind of suitable for mountain area power distribution network the present invention relates to a kind of distribution power automation terminal Optimal Configuration Method
Distribution power automation terminal Optimal Configuration Method.
Background technology
With the fast development of economic society, user proposes more intelligent, relatively reliable, more economical to distribution system
Required etc. many.Related data shows, power distribution automation be improve power supply reliability, expand power supply capacity, improve power supply quality,
Realize the important means of power distribution network high-efficiency and economic operation, be new electricity change under policy power grid enterprises improve distribution network automated level,
Strengthen the necessary condition of itself market competitiveness.
In recent years, developing rapidly with computer technology, information and the communication technology, the Distribution Automation Construction of China takes
Significant progress was obtained, and progresses into practical stage.China's mountain and sea feature is obvious, although Southern Power Grid Company and state's household electrical appliances
Net company puts into effect in succession《Distribution network automated planning directive/guide》With《Distribution automation planning designing technique directive/guide》, for difference
The terminal Configuration Type of power supply area has carried out clear and definite regulation, but in specific operation process, because network structure, equipment are joined
Had nothing in common with each other in terms of number, load level, reliability requirement, planning personnel is difficult the configuration result for finding a total optimization.
The content of the invention
It is an object of the invention to provide a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network,
To overcome defect present in prior art.
To achieve the above object, the technical scheme is that：A kind of power distribution automation suitable for mountain area power distribution network is whole
Optimal Configuration Method is held, is realized in accordance with the following steps：
Step S1：Calculate the comprehensive cost and reliability index when not configuring distribution power automation terminal；Input distribution network circuit
Data, and calculate not configuring comprehensive cost and reliability index during distribution power automation terminal；
Step S2：Calculate the allocation optimum scheme under different condition；
First state is provided：In the whole config failure indicators of key node；
And second state：It is distant, former in the configuration of remaining key node in backbone block switch and tie switches allocation wireless three
Hinder indicator；
Calculate under the first state and under second state, in addition to key node, fault detector difference configuration number
Under allocation optimum scheme；Wherein, key node is backbone block switch, interconnection switch and big branch line breaker；
Step S3：Export allocation optimum scheme；Allocation optimum scheme under different condition obtained by calculating is compared, and root
Allocation plan is exported according to actual conditions.
In an embodiment of the present invention, in the step S2, for the first state and second state, lead to
Cross following steps and calculate allocation optimum scheme：
Step S21：Note is in addition to key node, and fault detector configuration number is 0, calculates comprehensive cost and reliability index；
Step S22：Note is in addition to key node, and fault detector configuration number is 1, and calculating now optimal using genetic algorithm matches somebody with somebody
Put scheme and corresponding comprehensive cost and reliability index；
Step S23：Increase the fault detector configuration number in addition to key node successively, and calculated；Match somebody with somebody if gained is optimal
Put the corresponding comprehensive cost rising of scheme and reliability index lifting amplitude is less than preset threshold value, then terminate to calculate, obtain
Allocation optimum scheme under different faults indicator configuration number.
In an embodiment of the present invention, the reliability index in the step S3 according to actual conditions by being taken
House, genetic algorithm does not regard reliability index as constraints described in the step S2.
In an embodiment of the present invention, in the step S22, the genetic algorithm is used as optimization so that comprehensive cost is minimum
Target.
In an embodiment of the present invention, the key node includes：Backbone block switch, interconnection switch and big branch line
Breaker.
In an embodiment of the present invention, the comprehensive cost includes：Equipment investment, operating cost and interruption cost.
In an embodiment of the present invention, in the step S3, according to acquired allocation optimum scheme, judge whether to deposit
Meeting the scheme of reliability index requirements；If in the presence of the optimal allocation plan of output integrated expense；It is defeated if being not present
All allocation optimum schemes gone out under different condition, are transmitted to planning personnel.
Compared to prior art, the invention has the advantages that：The present invention proposes a kind of suitable for mountain area power distribution network
Distribution power automation terminal Optimal Configuration Method, referred to according to given network structure, track data, load level and reliability
Mark, determines distribution power automation terminal installation site optimal under the conditions of specific circuit and Setup Type so that the circuit is as far as possible
On the premise of meeting power supply area reliability requirement, line walking difficulty is reduced, the fault insulation and resume time is greatly reduced, shows money
The maximum service efficiency of gold.The present invention provides an alignment to solve the planning of mountain area distribution power automation terminal with optimization allocation
Really, method efficiently, easy.
Brief description of the drawings
Fig. 1 for the present invention in be applied to mountain area power distribution network distribution power automation terminal Optimal Configuration Method flow chart.
Fig. 2 is example conspectus in one embodiment of the invention.
Fig. 3 (a) is comprehensive cost result of calculation contrast schematic diagram in one embodiment of the invention.
Fig. 3 (b) is reliability index result of calculation contrast schematic diagram in one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
The present invention proposes a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network, including synthesis
Consider the influence factors such as distribution net work structure, power load distributing, construction investment, fault outage loss and reliability requirement, set up optimization
Model simultaneously uses genetic algorithm for solving, determines the Configuration Type of distribution power automation terminal, quantity and position in the power distribution network of mountain area.
Further, in the present embodiment, according to distribution network track data, first to not configuring synthesis during automation
Expense and reliability index are calculated；Secondly, respectively in the whole config failure indicators of key node, and backbone segmentation
When switch and tie switches allocation wireless three are distant, optimal the matching somebody with somebody under fault detector difference configuration number in addition to key node is calculated
Put scheme；Finally, the allocation optimum scheme under the different condition obtained by calculating is compared, if in the presence of meeting constraints
Optimal solution, then export optimal solution, if being not present, and lists the allocation optimum scheme under different condition.
In order to allow those skilled in the art to further appreciate that a kind of matching somebody with somebody suitable for mountain area power distribution network proposed by the invention
The terminal optimized collocation method of electric automation, is illustrated with reference to specific implementation.
As shown in figure 1, a kind of distribution power automation terminal suitable for mountain area power distribution network proposed in the present embodiment optimizes
Collocation method, including calculate comprehensive cost and reliability index 1 when not configuring automation, optimal matching somebody with somebody of calculating under different condition
Put scheme 2,3 three parts of output allocation optimum scheme.
Further, calculating comprehensive cost and reliability index 1 when not configuring automation includes：Input power distribution network winding thread
Circuit-switched data, and calculate not configuring comprehensive cost and reliability index during automation.Comprehensive cost include equipment investment,
Operating cost and interruption cost.
Further, the allocation optimum scheme 2 calculated under different condition includes：Respectively in the whole config failures of key node
Indicator, and backbone block switch and tie switches allocation wireless three is distant, remaining key node config failure indicator when,
The allocation optimum scheme under fault detector difference configuration number in addition to key node is calculated, wherein key node is backbone point
Duan Kaiguan, interconnection switch and big branch line breaker.By taking whole config failure indicators at key node as an example, assume initially that
Fault detector configuration number is 0 in addition to key node, calculates comprehensive cost and reliability index；Secondly assume to remove key node
Outer fault detector configuration number is 1, using genetic algorithm calculate allocation optimum scheme now and corresponding comprehensive cost with
Reliability index；Increase the configuration number of the fault detector in addition to key node successively and calculated, if gained allocation optimum
The corresponding comprehensive cost of scheme rises and reliability index lifting amplitude is less than given threshold, then terminates to calculate, obtain different events
Hinder the allocation optimum scheme under indicator configuration number.Backbone block switch and tie switches allocation are obtained using same procedure
Wireless three is distant, remaining key node config failure indicator when different faults indicators configuration number under allocation optimum scheme.
Further, the genetic algorithm optimization target that the allocation optimum scheme 2 under calculating different condition is used is synthesis
Expense is minimum, because mountain area power distribution network still suffers from the high failure long transmission line in part, it is impossible to meet reliability index requirements, therefore at this
Genetic algorithm employed in embodiment is not using reliability index as constraints, and reliability index is in output allocation optimum side
The part of case 3 is considered.
Further, output allocation optimum scheme 3 includes：Judgement is in the allocation optimum scheme of gained at different conditions
It is no to there is the scheme for meeting reliability index requirements.If in the presence of the optimal allocation plan of output integrated expense；If being not present,
All allocation optimum schemes under different condition are then listed, are selected by planning personnel according to actual conditions.
Further, in the present embodiment, it is applied to the distribution power automation terminal of mountain area power distribution network with reference to Fig. 2 ~ 3 pair
Optimal Configuration Method carries out sample calculation analysis.
Example circuit and relevant parameter employed in the present embodiment are illustrated in figure 2, the overhead transmission line is somewhere mountain area
The high failure long transmission line of power distribution network typical case, has 6, branch line, load point 50,400, shaft tower, about 40 kilometers of total line length.Figure
Numeral is bar number in middle black box, and black open squares are interconnection switch, and solid black square frame is with electrode difference protection function
Breaker, failure can automatic separating fault after occurring.Basic parameter sets as follows：According to the actual traffic-operating period of local power distribution network,
Load simultaneity factor 0.6,37.3 secondary/hundred kilometers, wireless three distant 20,000 yuan/group of terminal, maintenance cost of overhead transmission line fault rate are set
0.1 ten thousand yuan/year, 0.4 ten thousand yuan/group of fault detector, yuan/year of maintenance cost 217；Population in Genetic Algorithms scale 100, iterations
100, crossover probability is 0.9, and mutation probability is 0.1；Unit loss of outage is 0.8 yuan/kilowatt hour, and the fault outage time, which accounts for, always to stop
Electric time scale is 30%, and reliability index lifting amplitude set threshold value is 0.01%, and reliability program target is 99.726%；Not
When configuring distribution power automation terminal, the fault outage time is trouble shooting time and the time sum that restores electricity, during trouble shoot
Between be that, with the time of 4 kilometers/hour of speed line walking, the time that restores electricity is 0.5 hour from circuit top；Distribution is installed automatic
Change after terminal, trouble shooting time is in the indicating fault interval time with 4 kilometers/hour of speed line walking, if backbone point
Duan Kaiguan and tie switches allocation wireless three are distant, then the time that restores electricity is 0.
Further, it is adaptable to which the result of calculation contrast of the distribution power automation terminal Optimal Configuration Method of mountain area power distribution network is shown
It is intended to as shown in Fig. 3 (a) and Fig. 3 (b).Fig. 3（a）Middle unit is/ten thousand yuan, Fig. 3（b）In be percentage.With fault detector
The increase of number is configured, reliability index is gradually lifted, and reliability index during key node whole config failure indicator
Consistently lower than backbone block switch and reliability index during distant tie switches allocation wireless three；Key node all configuration events
When hindering indicator, comprehensive cost is minimum when the fault detector configuration number in addition to key node is 3；Backbone block switch and
Tie switches allocation is wireless three it is distant when, in addition to key node fault detector configuration number be 2 when comprehensive cost it is minimum；Except pass
When fault detector configuration number outside key node is more than 2, comprehensive cost during key node whole config failure indicator is low
Comprehensive cost when backbone block switch and tie switches allocation wireless three is distant.When terminal configuration number is more than 5, the line
The reliability index lifting amplitude on road is less than given threshold, and EP (end of program) is calculated, and the reliability of gained allocation optimum scheme refers to
Mark is below reliability program target 99.726%, now lists all allocation optimum schemes under different condition, for planning people
Member is selected according to actual conditions.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, produced function is made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (7)
1. a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network, it is characterised in that according to following step
It is rapid to realize：
Step S1：Calculate the comprehensive cost and reliability index when not configuring distribution power automation terminal；Input distribution network circuit
Data, and calculate not configuring comprehensive cost and reliability index during distribution power automation terminal；
Step S2：Calculate the allocation optimum scheme under different condition；
First state is provided：In the whole config failure indicators of key node；
And second state：It is distant, former in the configuration of remaining key node in backbone block switch and tie switches allocation wireless three
Hinder indicator；
Calculate under the first state and under second state, in addition to key node, fault detector difference configuration number
Under allocation optimum scheme；Wherein, key node is backbone block switch, interconnection switch and big branch line breaker；
Step S3：Export allocation optimum scheme；Allocation optimum scheme under different condition obtained by calculating is compared, and root
Allocation plan is exported according to actual conditions.
2. a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network according to claim 1, its
It is characterised by, in the step S2, for the first state and second state, calculates as follows optimal
Allocation plan：
Step S21：Note is in addition to key node, and fault detector configuration number is 0, calculates comprehensive cost and reliability index；
Step S22：Note is in addition to key node, and fault detector configuration number is 1, and calculating now optimal using genetic algorithm matches somebody with somebody
Put scheme and corresponding comprehensive cost and reliability index；
Step S23：Increase the fault detector configuration number in addition to key node successively, and calculated；Match somebody with somebody if gained is optimal
Put the corresponding comprehensive cost rising of scheme and reliability index lifting amplitude is less than preset threshold value, then terminate to calculate, obtain
Allocation optimum scheme under different faults indicator configuration number.
3. a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network according to claim 2, its
It is characterised by, in the step S22, the genetic algorithm is used as optimization aim using comprehensive cost minimum.
4. a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network according to claim 2, its
It is characterised by, the reliability index is accepted or rejected in by the step S3, and genetic algorithm described in the step S2
Reliability index is not regard it as constraints.
5. a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network according to claim 2, its
It is characterised by, the key node includes：Backbone block switch, interconnection switch and big branch line breaker.
6. a kind of distribution power automation terminal side of distributing rationally suitable for mountain area power distribution network according to claim 1,2 or 5
Method, it is characterised in that the comprehensive cost includes：Equipment investment, operating cost and interruption cost.
7. a kind of distribution power automation terminal Optimal Configuration Method suitable for mountain area power distribution network according to claim 1, its
It is characterised by, in the step S3, according to acquired allocation optimum scheme, judges whether that meeting reliability index wants
The scheme asked；If in the presence of the optimal allocation plan of output integrated expense；It is all under output different condition if being not present
Allocation optimum scheme, is transmitted to planning personnel.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114218727A (en) * | 2021-12-15 | 2022-03-22 | 国家电网有限公司 | Power distribution network frame planning and multi-module intelligent terminal configuration joint optimization method |
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Application publication date: 20171024 |