CN110516876A - A kind of best section breaker optimization method and system - Google Patents
A kind of best section breaker optimization method and system Download PDFInfo
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Abstract
The present invention provides a kind of best section breaker optimization method and system, when optimization processing executes following steps: main switch set can be operated by filtering out, and enumerate all switch combination states that can operate main switch set；The switch combination state that main switch set can be operated according to every kind, carries out recombination topology to the corresponding interconnector of the main analysis distribution line, and the invalid method of operation after rejecting recombination topology obtains the new distribution line method of operation；Based on the new distribution line method of operation, the theory wire loss value of the main corresponding interconnector of analysis distribution line after calculating recombination topology；Theory wire loss minimum value is filtered out, the corresponding new distribution line method of operation of setting theory wire loss minimum value is optimum operating mode.The present invention improves the economical operation ability of distribution, reduces line loss per unit, makes the more economical operation of power grid, has achieved the purpose that wastage reducing and energy saving.
Description
Technical field
The present invention relates to multi-joint network power distribution network splicing applications, specifically, relate to a kind of best section breaker optimization side
Method and system.
Background technique
As user has a power failure to distribution network reliability and in short-term the continuous improvement of requirement, multi-joint network power distribution network wiring mould
Formula changes the mode of traditional uniline radiation type electric supply, improves confession because the high advantage of its utilization rate of equipment and installations is developed
The service ability of electric reliability and line facility；In the entire power system, line loss is the main composition portion of electric system loss
Point.
Under multi-joint network power distribution network Connection Mode, the disjunction of multiple substation lines in 10kV distribution network line passes through contact
The opening and closing intercommunication of switch forms new distribution line again, to be powered to the user on route, has contact rate height, distribution knot
The advantage that structure is flexible and radius of electricity supply is small；Hand in hand, the route mutually supplied is more, and interconnection switch is more, certain selectable operation
Mode is more；But since interconnection switch quantity increases, multi-joint network power distribution network wiring there are the method for operation and data statistics compared with
For complicated technical problem, lacks at present and each line segment load is comprehensively analyzed, it is different that optimal contact is surely selected to open
Opening and closing mode is closed to switch the method for operation of route, power grid non-economy is be easy to cause to run, so as to cause line loss increase.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, to provide a kind of best section breaker optimization method and be
System.
To achieve the goals above, the technical scheme adopted by the invention is that:
First aspect present invention provides a kind of best section breaker optimization method, comprising the following steps: selects main analysis distribution wire
Road judges in the main analysis distribution line with the presence or absence of interconnection switch；If there is no contacts in the main analysis distribution line
Switch, then terminate optimization process flow；If there are interconnection switches in the main analysis distribution line, by the main analysis distribution
The corresponding interconnector of route optimizes processing；Wherein, the interconnector is to pass through interconnection switch and the main analysis
The distribution line of distribution line connection；
Following steps are executed when optimization processing:
Main switch set can be operated by filtering out, and enumerate all switch combination states that can operate main switch set；
The switch combination state that main switch set can be operated according to every kind, to the corresponding interconnection of the main analysis distribution line
Road carries out recombination topology, and the invalid method of operation after rejecting recombination topology obtains the new distribution line method of operation；Based on new distribution
The route method of operation, the theory wire loss value of the main corresponding interconnector of analysis distribution line after calculating recombination topology；
Theory wire loss minimum value is filtered out, the corresponding new distribution line method of operation of setting theory wire loss minimum value is optimum operation
Mode.
Second aspect of the present invention provides a kind of judgment method of interconnection switch, the judgment method are as follows: by the main analysis
Switch in distribution line and its corresponding interconnector is divided into regular tap, T-type switch, V-type switch and three-stations load switch；
Wherein, the T-type switch and V-type switch are equivalent to four independent regular taps, and the three-stations load switch is equivalent
For a regular tap and two auxiliary switches；
If the regular tap is normal open switch and is in an off state, determine that the regular tap is doubtful interconnection switch；
If the doubtful interconnection switch belongs to different distribution lines, determine that the doubtful interconnection switch is interconnection switch.
Third aspect present invention provides the method for filtering out described in one kind and can operating main switch set, comprising: according to main point
The topological connection relation for analysing distribution line, is searched downwards since one end of the interconnection switch or the other end；If searching knot
Fruit is section breaker, and is searched downwards from second endpoint of the section breaker, if outlet switch can be found, determines the disjunction
Switch is main switch；Contact between the main switch found, the main analysis corresponding interconnector of distribution line is opened
It closes and the outlet switch of the main analysis corresponding interconnector of distribution line, as can operate main switch, described in addition
Main switch set can be operated.
Fourth aspect present invention provides a kind of best section breaker optimization system, which includes
Memory, processor and it is stored in the computer program that can be run on the memory and on the processor, the place
When managing device and executing the computer program, the step of realizing above-mentioned best section breaker optimization method.
The present invention has substantive distinguishing features outstanding and significant progress compared with the prior art, specifically:
1) the present invention provides a kind of best section breaker optimization method and system, the best section breaker optimization method packets
It includes: based on the new distribution line method of operation, the reason of the main corresponding interconnector of analysis distribution line after calculating recombination topology
By line loss value, it is optimum operating mode that the corresponding new distribution line method of operation of theory wire loss minimum value, which is arranged,；The present invention also counts
The original line loss value for calculating the main analysis corresponding interconnector of distribution line, according to the original line loss value and the theory wire loss
The comparison result of value judges whether the current method of operation of the main analysis corresponding interconnector of distribution line is optimum operation side
Formula, invention increases contact region line loss calculation analyses using the optimum operating mode of acquisition as adjustable strategies to be fortune
Dimension personnel provide technological guidance in implementing at the scene；Based on the distribution line after optimum operating mode recombination topology, it is effectively reduced
Line loss per unit, improves the economical operation ability of distribution, has achieved the purpose that wastage reducing and energy saving, while ensure that interconnection hand in hand
The power supply capacity on road；
2) the present invention also provides a kind of judgment methods of interconnection switch, distinguish interconnection switch and common point by increasing switching information
It disconnects and closing, substitute traditional artificial judgment interconnector contact information, reduce the workload of artificial judgment, improve work effect
Rate, while improving the accuracy of judgement；
3) the present invention also provides a kind of methods for filtering out and can operating main switch set, by the main switch found, the master point
Analyse the interconnection switch and the corresponding interconnection of the main analysis distribution line between the corresponding interconnector of distribution line
The outlet switch on road can operate main switch set described in addition as that can operate main switch；According to switch disconnection or closed form
State is combined the main switch set that operates got, enumerates the method for operation of all possible combinations, best to obtain
The method of operation provides data support and reference frame.
Detailed description of the invention
Fig. 1 is the flow chart of best section breaker optimization method of the invention.
Fig. 2 is the judgment method flow chart of interconnection switch of the invention.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
Embodiment 1
A kind of best section breaker optimization method, it judges the main analysis the following steps are included: select main analysis distribution line
It whether there is interconnection switch in distribution line；If interconnection switch is not present in the main analysis distribution line, terminate at optimization
Manage process；If there are interconnection switches in the main analysis distribution line, by the corresponding contact of the main analysis distribution line
Route optimizes processing；Wherein, the interconnector is to be matched by interconnection switch with what the main analysis distribution line was connect
Electric line；Following steps are executed when optimization processing: main switch set can be operated by filtering out, and is enumerated and described can be operated main switch
All switch combination states of set；The switch combination state that main switch set can be operated according to every kind matches the main analysis
The corresponding interconnector of electric line carries out recombination topology, and the invalid method of operation after rejecting recombination topology obtains new distribution wire
Road transport line mode；The main corresponding contact of analysis distribution line based on the new distribution line method of operation, after calculating recombination topology
The theory wire loss value of route；Filter out theory wire loss minimum value, the corresponding new distribution line operation of setting theory wire loss minimum value
Mode is optimum operating mode.
In the present embodiment, the best section breaker optimization method further include: calculate separately the main analysis distribution line
The original theory line loss value of corresponding interconnector；Compare the original theory line loss value and the theory wire loss minimum value；
If inconsistent, adjustment plan of the optimum operating mode as the main analysis corresponding interconnector of distribution line is exported
Slightly.Wherein, the original theory line loss value refers to the main analysis distribution line and its correspondence interconnector before recombination topology
The sum of theory wire loss value.The theory wire loss value refers to the master point based on the new distribution line method of operation, after recombination is topological
Analyse the sum of the theory wire loss value of the corresponding interconnector of distribution line.
That is, judging main analysis distribution according to the comparison result of the original line loss value and the theory wire loss value
Whether the current method of operation of the corresponding interconnector of route is optimum operating mode；If not optimum operating mode, then
Export the grid loss comparing result of optimum operating mode adjustable strategies and optimum operating mode and the current method of operation；It is related
As a result downloading can be exported, is to provide technological guidance during operation maintenance personnel is implemented at the scene.
In the present embodiment, the switch combination state of main switch set can be operated according to every kind, to the main analysis distribution wire
The corresponding interconnector in road carries out recombination topology, and obtaining the distribution line method of operation, there may be unsatisfactory for theoretical line loss caluclation
The case where, therefore, it is necessary to reject the invalid method of operation for being unsatisfactory for theoretical line loss caluclation.
Specifically, the invalid method of operation is the method for operation of multiple feed or there are the operation sides of power loss user
Formula；By topological analysis, occurs the quantity switched in inspection structure, if main analysis distribution line is corresponding after recombination topology
The quantity of outlet switch is greater than 1 in the new distribution line of winding thread road composition, illustrates that there are more power conditions.Before analysis recombination topology
Afterwards, number transformer whether there is difference in main analysis distribution line and its corresponding interconnector；If the main analysis distribution wire
Number transformer in road and its corresponding interconnector, in the main analysis distribution line and its corresponding interconnector after recombination topology
Number transformer is inconsistent, illustrates that there are power loss users.
On the basis of above-mentioned best section breaker optimization method, the present invention gives a kind of best section breaker optimization
System, the best section breaker optimization system include memory, processor and are stored on the memory and can be described
The computer program run on processor realizes that above-mentioned best disjunction is opened when the processor executes the computer program
The step of closing optimization method.
The present invention is based on the new distribution line method of operation, the main analysis distribution line after calculating recombination topology is corresponding
The theory wire loss value on winding thread road, the corresponding new distribution line method of operation of setting theory wire loss minimum value are optimum operating mode；
By calculating the original line loss value of the main analysis corresponding interconnector of distribution line, according to the original line loss value and institute
The comparison result for stating theory wire loss value, the corresponding fortune of the main corresponding interconnector of analysis distribution line before judging recombination topology
Whether line mode is optimum operating mode；Invention increases contact region line loss calculation analyses, by main analysis distribution wire
Each line segment load on road is analyzed comprehensively, and the method for operation of each switch in main switch set can be operated by adjusting, and is obtained
The adjustable strategies of the main analysis corresponding interconnector of distribution line are to provide technology during operation maintenance personnel is implemented at the scene to refer to
It leads；The present invention effectively increases the economical operation ability of distribution, makes the more economical operation of power grid, reaches the purpose of wastage reducing and energy saving；
The power supply capacity that ensure that interconnector hand in hand simultaneously, reduces line loss per unit.
Embodiment 2
In the present embodiment, the best section breaker optimization system and electric power management system PMS2.0 system communication are interconnected, and are obtained
10kV distribution line model data, model data include outlet switch, distribution line segment, distribution transformer, switch and topological relation
Etc. information.The best section breaker optimization system is also communicated with power information acquisition system and is interconnected, and obtains 10kV distribution line
Operation data, operation data include the data such as outlet switch stoichiometric point active energy, capacity of idle power, working voltage, power factor,
It obtains copying for distribution transformer stoichiometric point and sees electricity, the data such as operation data.The model data of 10kV distribution line model data
With the judgement that operation data is interconnection switch, the screening that main switch can be operated and the original line loss value and the theory wire loss
The calculating of value, provides data supporting.
Attached drawing 1 shows the detailed process of the best section breaker optimization method:
Step 1.1, the main analysis distribution of 10KV for needing to optimize is selected from 10kV distribution line model according to tree structure
Route, and selection analysis time；
Judge that this is to carry out best section breaker optimization processing with the presence or absence of interconnection switch in the main analysis distribution line of the 10KV
Precondition；
If interconnection switch is not present in the main analysis distribution line of 10KV, terminate optimization process flow；If the 10KV master
There are interconnection switches in analysis distribution line, then go to step 1.2；
Step 1.2, it is counted respectively according to the 10kV distribution line operation data building group data object based on group data object
Calculate the original theory line loss value of main analysis distribution line and corresponding interconnector；
Step 1.3, if calculate original theory line loss value, occur not supporting operation or without calculated result due to data reasons
It is abnormal then to judge that original theory line loss value calculates for situation；At this time, it may be necessary to described group of data object inspection and handle, then turn
Step 1.2；
If calculated result is normal data after original theory line loss value, then 1.4 are gone to step；
Step 1.4, interconnection switch, outlet switch and the main switch in main analysis distribution line and corresponding interconnector are filtered out,
As main switch can be operated, main switch set can be operated described in addition；
The main switch set that operates got is combined according to switch state, enumerates all possible assembled state,
Then 1.5 are gone to step；
Step 1.5, the assembled state that main switch set can be operated according to every kind, analysis distribution line main to the 10KV and its right
Interconnector is answered to carry out model recombination, topology goes out the new route method of operation, after rejecting the invalid method of operation, remaining line again
Road transport line mode is the finally obtained new distribution line method of operation；
Step 1.6, according to the new distribution line method of operation, to again topological main analysis distribution line and its corresponding interconnector
Carry out electricity processing；
Since the route method of operation changes, i.e. lower band distribution transformer of outlet increases or reduces, and needs to adjust outlet accordingly
Head end power supply volume；Adjusting outlet head end power supply volume specifically can be by the way of sharing power supply volume equally: according to distribution transformer sale of electricity
Amount accounts for distribution line institute with the total electricity sales amount ratio of all transformers, shares outlet head end power supply volume equally；
Step 1.7, judge that can the new distribution line method of operation that obtained meet theoretical calculation requirement；If occurring due to data original
Because not supporting the case where operation, then it is judged to being unsatisfactory for theoretical calculation requirement；If meeting theoretical calculation requirement, it is based on new distribution
The route method of operation, the theory wire loss value of main analysis distribution line and its corresponding interconnector after calculating recombination topology, and sieve
Theory wire loss minimum value is selected, it is optimum line operation side that the theory wire loss minimum value, which corresponds to the new distribution line method of operation,
Formula.
In the present embodiment, the main analysis distribution line of a 10KV is selected, if there is no contacts for the main analysis distribution line of 10KV
Switch, then terminate optimization process flow；If there are interconnection switches for the main analysis distribution line of 10KV, to the main analysis distribution wire of 10KV
Road with and its interconnector composition contact region optimize processing.
In the present embodiment, before calculating the theory wire loss value, further includes the steps that adjusting outlet head end power supply volume: adjust
Whole electricity=original head end power supply volume × adjustment is with the sum of the power consumption total electricity sales amount of ÷ distribution；Wherein, the original head end power supply volume
Based on analyze distribution line head end power supply volume；The adjustment changes the total of the distribution transformer of supplier of electricity with the sum of power consumption
Electricity sales amount；Total electricity sales amount of the distribution transformer of distribution line is analyzed based on the total electricity sales amount of distribution.Calculating theoretical line loss
Before value, outlet head end power supply volume is adjusted, ensure that the accuracy of theory wire loss value calculated result, to be most good speed
Determining for line mode provides reliable data supporting.
In the present embodiment, since the combination of the method for operation is very more, especially when range of choice it is mutual for get in touch with it is more complicated
In the case where, the calculation amount of system can be very big；In order to improve computational efficiency, the present invention carries out group in such a way that cluster is concurrent
Preferred calculating is closed, which finds out optimal run mode automatic identification with the minimum target of line loss.
Embodiment 3
This gives a kind of judgment method of interconnection switch, the judgment method are as follows: the main analysis distribution line of setting and
Its switch for corresponding in interconnector is divided into regular tap, T-type switch, V-type switch and three-stations load switch；Wherein, the T
Type, which switchs, and V-type switch is removable is divided into four independent regular taps, and detachable one of the three-stations load switch is general
Open up pass and two auxiliary switches；If the regular tap is normal open switch and to be in an off state, determine described commonly to open
Closing is doubtful interconnection switch；Otherwise, it is determined that the regular tap is section breaker；If the doubtful interconnection switch belongs to different
Distribution line then determines that the doubtful interconnection switch is interconnection switch；Otherwise, it is determined that the regular tap is section breaker.
In the present embodiment, after obtaining 10kV distribution line model data, switching information is parsed from model data；According to
Switchtype is different, and switch is divided into regular tap, T-type switch, V-type switch and three-stations load switch；Wherein, switchtype
Include: T-type switch, V-type switch, three-stations load switch, breaker, pole-mounted circuit breaker, on-load switch, column load switch,
Fuse switch etc. on disconnecting switch, fuse and column in disconnecting switch, column.
In the present embodiment, regular tap refers to breaker, on-load switch, disconnecting switch and fuse etc.；The T-type is opened
Pass can be connected to a plurality of route, parsed by switching to the T-type, can be split as four relatively independent elements,
T-type switch is thus equivalent to four independent regular taps；The V-type switch is similar with T-type switch.Described three
Station load switch is made of three relatively independent elements, and one of element is ground connection gear element, and an element is disconnected
Gear element is opened, another element is connection line switching element；Two auxiliary switches refer to ground connection gear element and disconnection
Gear element；The present embodiment is handled using connection line switching element as regular tap.
Attached drawing 2 shows the detailed process of interconnection switch judgment method:
Step 2.1, switching information is extracted from obtaining in 10kV distribution line model data, according to switchtype by all switches
It is divided into regular tap, T-type switch, V-type switch and three-stations load switch；
Step 2.2, if the regular tap is normal open switch and is in an off state, determine that the regular tap is doubtful
Network switch；If the regular tap is not normal open switch or is in closed state, determine that the regular tap is opened for disjunction
It closes；
Step 2.3, if the doubtful interconnection switch belongs to different distribution lines, determine the doubtful interconnection switch for contact
Switch；If the doubtful interconnection switch belongs to the distribution line of same, determine the regular tap for section breaker.
Embodiment 4
A kind of method for filtering out and can operating main switch set is given in the present embodiment, comprising: according to main analysis distribution line
Topological connection relation, searched downwards since one end of the interconnection switch or the other end；If lookup result is distribution wire
Section or distribution transformer, then be not processed；If outlet switch cannot be found, continue to search downwards；The element found is
After outlet switch, terminate to search process；If lookup result is section breaker, and is looked into downwards from second endpoint of the section breaker
It looks for, if outlet switch can be found, determines that the section breaker is that can operate main switch；
By the interconnection switch between the main switch found, the main analysis corresponding interconnector of distribution line, Yi Jisuo
The outlet switch for stating the main analysis corresponding interconnector of distribution line can operate master described in addition as that can operate main switch
Switch set.
That is, if the disconnection of some switch or closure can change the method for operation of distribution line, and the switch
Disconnection not will cause user's power loss, then determines that the switch is that can operate main switch.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (6)
1. a kind of best section breaker optimization method, which comprises the following steps:
Main analysis distribution line is selected, is judged in the main analysis distribution line with the presence or absence of interconnection switch；If the main analysis
Interconnection switch is not present in distribution line, then terminates optimization process flow；If having contact in the main analysis distribution line to open
It closes, then the corresponding interconnector of the main analysis distribution line is optimized into processing；Wherein, the interconnector is to pass through
The distribution line that interconnection switch is connect with the main analysis distribution line；
Following steps are executed when optimization processing:
Main switch set can be operated by filtering out, and enumerate all switch combination states that can operate main switch set；
The switch combination state that main switch set can be operated according to every kind, to the corresponding interconnection of the main analysis distribution line
Road carries out recombination topology, and the invalid method of operation after rejecting recombination topology obtains the new distribution line method of operation；Based on new distribution
The route method of operation, the theory wire loss value of the main corresponding interconnector of analysis distribution line after calculating recombination topology；
Theory wire loss minimum value is filtered out, the corresponding new distribution line method of operation of setting theory wire loss minimum value is optimum operation
Mode.
2. best section breaker optimization method according to claim 1, which is characterized in that the judgement side of the interconnection switch
Method are as follows:
Switch in the main analysis distribution line and its corresponding interconnector is divided into regular tap, T-type switch, V-type switch
And three-stations load switch；Wherein, the T-type switch and the V-type switch and are equivalent to four independent regular taps, and described three
Station load switch is equivalent to a regular tap and two auxiliary switches；
If the regular tap is normal open switch and is in an off state, determine that the regular tap is doubtful interconnection switch；
If the doubtful interconnection switch belongs to different distribution lines, determine that the doubtful interconnection switch is interconnection switch.
3. best section breaker optimization method according to claim 1, which is characterized in that described filter out can operate main open
Closing the method gathered includes:
According to the topological connection relation of main analysis distribution line, looked into downwards since one end of the interconnection switch or the other end
It looks for；If lookup result is section breaker, and is searched downwards from second endpoint of the section breaker, if outlet switch can be found,
Then determine the section breaker for main switch；
By the interconnection switch between the main switch found, the main analysis corresponding interconnector of distribution line, Yi Jisuo
The outlet switch for stating the main analysis corresponding interconnector of distribution line can operate master described in addition as that can operate main switch
Switch set.
4. best section breaker optimization method according to claim 1, which is characterized in that further include:
Calculate separately the original theory line loss value of the main analysis corresponding interconnector of distribution line；
Compare the original theory line loss value and the theory wire loss minimum value；
If inconsistent, tune of the optimum operating mode as the main analysis corresponding interconnector of distribution line is exported
Whole strategy.
5. best section breaker optimization method according to claim 1, it is characterised in that: the invalid method of operation is more
The method of operation of power supply power supply or there are the methods of operation of power loss user；
If the quantity of outlet switch is greater than 1 in the main corresponding interconnector of analysis distribution line after recombination topology, determine
The method of operation after recombination topology is the method for operation of multiple feed；
If the main analysis distribution in the main analysis distribution line and its corresponding interconnector after number transformer, with recombination topology
Number transformer is inconsistent in route and its corresponding interconnector, then the method for operation after determining recombination topology is there are power loss use
The method of operation at family.
6. a kind of best section breaker optimization system, it is characterised in that: including memory, processor and be stored in the storage
On device and the computer program that can run on the processor, when the processor executes the computer program, realize such as
The step of claim 1-5 described in any item best section breaker optimization methods.
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