CN106056416A - Calculation method and apparatus for electricity transmission charge of extra-high-voltage alternating-current grid node - Google Patents
Calculation method and apparatus for electricity transmission charge of extra-high-voltage alternating-current grid node Download PDFInfo
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Abstract
The invention discloses a calculation method and apparatus for an electricity transmission charge of an extra-high-voltage alternating-current grid node. The method comprises: power flow values of all branches in a target grid including a plurality of grid nodes and a total power value of all grid nodes are collected; on the basis of the power flow values and the total power value, a downstream distribution matrix of the target grid is obtained; with the downstream distribution matrix of the target grid, power flow contribution values of all grid nodes to all branches in the target grid are obtained; according to the power flow contribution values, an apportionment ratio of electricity transmission charges to all branches by all grid nodes in the target grid is obtained; on the basis of the apportionment ration, a total electricity transmission charge of all grid nodes in the target grid is obtained; and electricity transmission charges of all grid nodes in the target grid are obtained by using the total electricity transmission charge and node power of all grid nodes in the target grid.
Description
Technical field
The present invention relates to electricity price computing technique field, particularly to the calculating of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency
Method and device.
Background technology
At present, in interlocal energy strategy structural adjustment, UHV transmission becomes energy scarcity community energy supply
Major programme.
In UHV transmission line, the expense of always transmitting electricity of every extra-high voltage AC circuit, by this circuit to its each sub-electrical network
Electricity or the parameter logistic such as power, each sub-electrical network electricity volume sold of conveying share each sub-electrical network, the transmission of electricity of each sub-electrical network
The electricity that expense is received from UHV transmission line divided by this sub-electrical network again, i.e. the transmission of electricity valency of this sub-electrical network.
The extra-high voltage AC circuit put into operation at present does not also become net, transmission of electricity valency to be a line monovalence, but not for spy
The numerical procedure of each grid nodes transmission of electricity valency in High-voltage AC Network.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency computational methods and
Device, in order to solve cannot calculate in prior art the technical problem of each grid nodes transmission of electricity valency in extra-high-voltage alternating current electrical network.
The invention provides the computational methods of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency, including:
Gathering trend value and the total power value of each grid nodes of each branch road in target grid, described target grid includes
Multiple grid nodes；
Based on described trend value and described total power value, it is thus achieved that the downstream distribution matrix of described target grid；
Utilize the downstream distribution matrix of described target grid, it is thus achieved that in described target grid, each grid nodes is to each
The trend contribution margin on road；
According to described trend contribution margin, it is thus achieved that in described target grid, each branch road is transmitted electricity expense by each grid nodes
Amortization ratio；
Based on described amortization ratio, it is thus achieved that the expense of always transmitting electricity of each grid nodes in described target grid；
Utilize total transmission of electricity expense and the node electricity of each grid nodes in described target grid, it is thus achieved that in described target grid
The transmission of electricity valency of each grid nodes.
Said method, it is preferred that also include:
Obtain the summation of total transmission of electricity expense of grid nodes in described target grid；
Utilize summation and the summation of node electricity of total transmission of electricity expense of grid nodes in described target grid, calculate described mesh
The valency of averagely transmitting electricity of grid nodes in mark electrical network.
Said method, it is preferred that described based on described trend value and described total power value, it is thus achieved that described target grid suitable
Stream allocation matrix, including:
UtilizeAndObtain the following current distribution of described target grid
Matrix；
Wherein, Li-For in described target grid grid nodes i enter line collection, PijFor branch road ij in described target grid
Trend value, the first node of branch road ij is i, and the end-node of branch road ij is j, PiFor the total work of grid nodes i in described target grid
Rate value, PjFor the total power value of grid nodes j, P in described target gridGiFor the power value of described target grid node i,
I be more than or equal to 1 and less than etc. the positive integer of n, n is the number of grid nodes in described target grid, [Ad]ijFor described mesh
The downstream distribution matrix of mark grid branch ij.
Said method, it is preferred that utilize the downstream distribution matrix of described target grid, it is thus achieved that in described target grid each
The grid nodes trend contribution margin to each branch road, including:
UtilizeObtain each grid nodes trend tribute to each branch road in described target grid
Offer value；
Wherein, [Ad -1]ijFor the transposition of the downstream distribution matrix of described target grid branch road ij, PkTotal for grid nodes k
Performance number, Pij,kFor the trend contribution margin to each branch road ij of grid nodes k in described target grid.
Said method, it is preferred that according to described trend contribution margin, it is thus achieved that in described target grid, each grid nodes is to respectively
The amortization ratio that the transmission of electricity of individual branch road takes, including:
UtilizeAnd Cij,k=0 (k=i), it is thus achieved that in described target grid
Each branch road is transmitted electricity the amortization ratio of expense by each grid nodes；
Wherein, Cij,kThe amortization ratio of expense of branch road ij being transmitted electricity for grid nodes k in described target grid.
Said method, it is preferred that based on described amortization ratio, it is thus achieved that in described target grid, each grid nodes is the most defeated
The electricity charge, including:
UtilizeObtain total transmission of electricity expense of each grid nodes in described target grid；
Wherein, FijFor the transmission of electricity expense of branch road ij, F in described target gridkFor grid nodes k total in described target grid
Transmission of electricity expense.
Present invention also offers the calculating device of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency, including:
Performance number collecting unit, for gathering trend value and the general power of each grid nodes of each branch road in target grid
Value, described target grid includes multiple grid nodes；
Allocation matrix obtains unit, for based on described trend value and described total power value, it is thus achieved that described target grid
Downstream distribution matrix；
Trend contribution obtains unit, for utilizing the downstream distribution matrix of described target grid, it is thus achieved that described target grid
In each grid nodes trend contribution margin to each branch road；
Amortization ratio obtains unit, for according to described trend contribution margin, it is thus achieved that each electrical network joint in described target grid
Put the amortization ratio of expense that each branch road is transmitted electricity；
Transmission of electricity takes acquisition unit, for based on described amortization ratio, it is thus achieved that each grid nodes in described target grid
Always transmit electricity expense；
Target transmission of electricity valency obtains unit, for utilizing total transmission of electricity expense and the node of each grid nodes in described target grid
Electricity, it is thus achieved that the transmission of electricity valency of each grid nodes in described target grid.
Said apparatus, it is preferred that also include:
Average transmission of electricity valency computing unit, for obtaining the summation of total transmission of electricity expense of grid nodes, profit in described target grid
By always the transmit electricity summation taken and the summation of node electricity of grid nodes in described target grid, calculate electricity in described target grid
The valency of averagely transmitting electricity of net node.
Said apparatus, it is preferred that described allocation matrix obtain unit specifically for: utilize
AndObtain the downstream distribution matrix of described target grid；
Wherein, Li-For in described target grid grid nodes i enter line collection, PijFor branch road ij in described target grid
Trend value, the first node of branch road ij is i, and the end-node of branch road ij is j, PiFor the total work of grid nodes i in described target grid
Rate value, PjFor the total power value of grid nodes j, P in described target gridGiFor the power value of described target grid node i,
I be more than or equal to 1 and less than etc. the positive integer of n, n is the number of grid nodes in described target grid, [Ad]ijFor described mesh
The downstream distribution matrix of mark grid branch ij.
Said apparatus, it is preferred that described trend contribution obtain unit specifically for: utilizeObtain
Take each grid nodes trend contribution margin to each branch road in described target grid；
Wherein, [Ad -1]ijFor the transposition of the downstream distribution matrix of described target grid branch road ij, PkTotal for grid nodes k
Performance number, Pij,kFor the trend contribution margin to branch road ij of grid nodes k in described target grid.
Said apparatus, it is preferred that described amortization ratio obtain unit specifically for: utilize
And Cij,k=0 (k=i), it is thus achieved that in described target grid, each branch road is transmitted electricity the amortization ratio of expense by each grid nodes；
Wherein, Cij,kThe amortization ratio of expense of branch road ij being transmitted electricity for grid nodes k in described target grid.
Said apparatus, it is preferred that described transmission of electricity expense obtain unit specifically for: utilizeObtain described
The expense of always transmitting electricity of each grid nodes in target grid；
Wherein, FijFor the transmission of electricity expense of branch road ij, F in described target gridkFor grid nodes k total in described target grid
Transmission of electricity expense.
From such scheme, the computational methods of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency that the present invention provides and dress
Put, by the downstream distribution matrix of electrical network is calculated, and then obtain each node trend contribution to each branch road in electrical network
Value, and then obtain each node and each branch road is transmitted electricity the amortization ratio of expense, thus, utilize amortization ratio further to obtain electricity
The expense of always transmitting electricity of each node in net, the node electricity recycling each node is calculated the transmission of electricity valency of each node, it is achieved this
Improving eyesight.It is different from the transmission of electricity valency setting scheme of a line monovalence in prior art, many only according to customer charge or power consumption
Share less, do not consider the distance of transmission distance, do not consider the difference of ratio of sharing so that defeated electricity price level does not has difference,
Cause the set inaccurate situation of transmission of electricity valency, the trend of each branch road is contributed and to respectively by the present invention by each for electrical network node
The amortization ratio that the transmission of electricity of branch road takes is considered in the calculating of transmission of electricity valency of node, the accurate of valency of transmitting electricity of obtained each node
Property significantly improves.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
The accompanying drawing provided obtains other accompanying drawing.
Fig. 1 is the node topology figure of extra-high-voltage alternating current electrical network；
Fig. 2 and Fig. 3 is respectively the calculating side of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency that the embodiment of the present invention provides
The flow chart of method；
Fig. 4 and Fig. 5 is respectively the calculating dress of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency that the embodiment of the present invention provides
The structural representation put.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Fig. 1 show the transmission line of electricity figure of extra-high-voltage alternating current electrical network, and extra-high-voltage alternating current electrical network is made up of multiple electrical networks, as entirely
State's extra-high-voltage alternating current electrical network is made up of multiple provincial power networks, all has multiple grid nodes, grid nodes here in each electrical network
Refer to the Rendezvous Point of a plurality of branch road in electrical network.Every branch road in electrical network, referring to can be by each point of same electric current in electrical network
?.
The extra-high voltage AC circuit put into operation will become net, and valency of transmitting electricity is still a line monovalence, say, that every
The expense of always transmitting electricity of extra-high voltage AC circuit, the electricity carried to each electrical network by this circuit or power, each electrical network electricity volume sold
Each electrical network is shared, the electricity that the transmission of electricity expense that each electrical network is undertaken is accepted from extra-high voltage again divided by this electrical network Deng parameter logistic
Amount, is transmission of electricity valency.In the scheme of this calculating transmission of electricity valency, regardless of the distance of transmission distance, the most do not consider that carried power is noted
Access point and flow out the position of point, only by customer charge or power consumption number share, the calculating causing transmission of electricity valency is inaccurate.And
And, each electrical network that an extra-high voltage AC circuit is transmitted electricity for it, defeated electricity price level does not has difference, just cannot be to each electrical network
The economy of reflection transmission of electricity directly perceived, meanwhile, each bar circuit formulates transmission of electricity valency respectively, does not accounts for electrical network overall to electric power resource
The effect distributed rationally.
For disadvantages described above, the present invention considers extra-high-voltage alternating current electrical network to parameters such as each node trend contributions in electrical network
Valency of transmitting electricity in electrical network is calculated, improves, with this, the accuracy that transmission of electricity valency calculates.
Shown in Fig. 2, for the computational methods of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency that the embodiment of the present invention one provides
Flow chart, it is adaptable to the grid nodes in each electrical network in Fig. 1 transmission of electricity valency calculating, for certain shown in Fig. 1
Electrical network is as target grid, concrete, and the method in the present embodiment may comprise steps of:
S201: gather trend value and the total power value of each grid nodes of each branch road in target grid.
Trend value therein can be understood as the watt current value of each branch road in target grid.
S202: based on trend value and total power value, it is thus achieved that the downstream distribution matrix of target grid.
The embodiment of the present invention obtains downstream distribution matrix, particularly as follows:
UtilizeAndThe following current of target grid is obtained by calculating
Allocation matrix.
Wherein, Li-For in target grid grid nodes i enter line collection, PijFor the trend value of branch road ij in target grid, prop up
The first node of road ij is i, and the end-node of branch road ij is j, PiFor the total power value of grid nodes i, P in target gridjFor target electricity
The total power value of grid nodes j, P in netGiFor the power value of described target grid node i, i is more than or equal to 1 and little
In the positive integer of n such as grade, n is the number of grid nodes in target grid, [Ad]ijFollowing current distribution moments for target grid branch road ij
Battle array.
S203: utilize the downstream distribution matrix of target grid, it is thus achieved that in target grid, each grid nodes is to each branch road
Trend contribution margin.
In target grid, the trend contribution margin of each branch road is referred to by each grid nodes, each electrical network in this Branch Power Flow
Meritorious amount caused by node.Trend contribution margin determines based on downstream distribution matrix, particularly as follows:
UtilizeObtain each grid nodes in target grid the trend of each branch road is contributed
Value.
Wherein, [Ad -1]ijFor the transposition of the downstream distribution matrix of target grid branch road ij, PkGeneral power for grid nodes k
Value, Pij,kFor the trend contribution margin to branch road ij of grid nodes k in target grid.
S204: according to trend contribution margin, it is thus achieved that in target grid, each branch road transmit electricity the dividing of expense by each grid nodes
Stand ratio.
The embodiment of the present invention can use following current tracking method calculate.It should be strongly noted that branch road top
Grid nodes is not in the transmission of electricity function using branch road.Such as, the trend on a branch road AB flows to B node from A node, and
And A and B two ends are all connected with lower network users, who uses paying, and does not use the transmission of electricity of branch road at this moment the user of A end
Function, therefore A end subscriber can not undertake multi-line power transmission expense, needs the use to circuit top (i.e. this Line Flow outflow end)
Family share the expenses ratio is adjusted.The scheme adjusted can be: when the first node i of the node k and circuit ij of user L is identical
Time, then making this node is 0 in the share the expenses ratio of this branch road, and this node deducts the tide at k node in the trend summation of transmission of electricity
As the denominator of calculating share the expenses ratio after stream, accordingly, the embodiment of the present invention utilizes below equation to calculate sharing of transmission of electricity expense
Ratio:
UtilizeAnd Cij,k=0 (k=i), it is thus achieved that in target grid each
Each branch road is transmitted electricity the amortization ratio of expense by grid nodes, C thereinij,kFor grid nodes k in target grid to branch road ij
The amortization ratio taken of transmission of electricity.
It is to say, in the embodiment of the present invention, the amortization ratio of branch road head node is 0, and the amortization ratio of other nodes is pressed
Calculate according to above-mentioned formula and obtain.
S205: based on amortization ratio, it is thus achieved that the expense of always transmitting electricity of each grid nodes in target grid.
The branch road transmission of electricity expense that in target grid, each grid nodes is shared is the tide to branch road of the user according to this grid nodes
Stream contribution proportion determines, particularly as follows:
UtilizeObtain the expense of always transmitting electricity of each grid nodes in target grid；
Wherein, FijFor the transmission of electricity expense of branch road ij, F in target gridkFor the expense of always transmitting electricity of grid nodes k in target grid.
S206: utilize total transmission of electricity expense and the node electricity of each grid nodes in target grid, it is thus achieved that each in target grid
The transmission of electricity valency of individual grid nodes.
Concrete, the embodiment of the present invention utilizes Tk=Fk/QkObtain the transmission of electricity valency of each grid nodes, Q thereinkFor
In target grid grid nodes k node electricity, then TkFor the transmission of electricity valency of grid nodes k in target grid.
From such scheme, the calculating of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency that the embodiment of the present invention one provides
Method, by calculating the downstream distribution matrix of electrical network, and then obtains each node trend tribute to each branch road in electrical network
Offer value, and then obtain each node and each branch road is transmitted electricity the amortization ratio of expense, thus, utilize amortization ratio further to obtain
The expense of always transmitting electricity of each node in electrical network, the node electricity recycling each node is calculated the transmission of electricity valency of each node, it is achieved this
Embodiment purpose.It is different from the transmission of electricity valency setting scheme of a line monovalence in prior art, only according to customer charge or power consumption
Number share, do not consider the distance of transmission distance, the most do not consider to share the difference of ratio so that defeated electricity price level is the poorest
Not, cause the set inaccurate situation of transmission of electricity valency, the trend of each branch road is contributed by the present embodiment by each for electrical network node with
And the amortization ratio of expense of transmitting electricity each branch road is in view of in the calculating of the transmission of electricity valency of node, the accuracy of obtained transmission of electricity valency
Significantly improve.
Fig. 2 is to the calculating side of the transmission of electricity valency of each grid nodes of some electrical network in whole extra-high-voltage alternating current electrical network
Case, and the transmission of electricity valency for each grid nodes of each electrical network in Fig. 1 all can realize according to scheme shown in Fig. 2, and
Under special circumstances, it usually needs unify the sales rate of electricity of each electrical network to formulate, accordingly, it would be desirable to the electricity to target grid
The average transmission of electricity valency of net node carries out unifying to appraise and decide.Shown in Fig. 3, average for the grid nodes to the target grid shown in Fig. 1
The numerical procedure of transmission of electricity valency, particularly as follows:
S301: obtain the summation taken of always transmitting electricity of each grid nodes in target grid.
Wherein, the embodiment of the present invention can use the scheme shown in Fig. 2, obtain each target grid shown in Fig. 1
In the summation taken of always transmitting electricity of each grid nodes.
S302: utilize summation and the summation of node electricity of total transmission of electricity expense of grid nodes in target grid, calculate target
The valency of averagely transmitting electricity of grid nodes in electrical network.
Concrete, the embodiment of the present invention can obtain in electrical network each electrical network joint in each target grid in the following ways
The valency of averagely transmitting electricity of point:
UtilizeObtain the valency of averagely transmitting electricity of each grid nodes of target grid,For target electricity
The summation taken of always transmitting electricity of grid nodes in net,For the summation of the node electricity of grid nodes in target grid, therein
T’kThe average transmission of electricity valency of calculated target grid when appraising and deciding for the unification of transmission of electricity valency, A is that whole electrical network accesses extra-high voltage friendship
The set of grid nodes in the target grid of stream power transmission network.
It should be noted that the average transmission of electricity valency of each electrical network shown in Fig. 1 all can utilize shown in Fig. 2 and Fig. 3
Scheme realizes.
Such as, for some country, the sales rate of electricity in most of provincial or state level electrical network is consistent, and
Provincial or state level electrical network T-D tariff is also unified appraising and deciding, at this point it is possible to use the side shown in Fig. 2 and Fig. 3 in the present embodiment
Provincial or state level transmission of electricity valency is calculated by case, with unified transmission of electricity valency inside the province or in state.
Shown in Fig. 4, for the embodiment of the present invention two provide a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency calculating device,
This device can include with lower unit, it is achieved to the calculating of the transmission of electricity valency of each grid nodes in the electrical network shown in Fig. 1:
Performance number collecting unit 401, for gathering trend value and the total work of each grid nodes of each branch road in target grid
Rate value.
Trend value therein can be understood as the watt current value of each branch road in target grid.
Allocation matrix obtains unit 402, for based on trend value and described total power value, it is thus achieved that the following current of target grid divides
Join matrix.
In the embodiment of the present invention, allocation matrix obtains unit 402 and obtains downstream distribution matrix, particularly as follows:
UtilizeAndThe following current of target grid is obtained by calculating
Allocation matrix.
Wherein, Li-For in target grid grid nodes i enter line collection, PijFor the trend value of branch road ij in target grid, prop up
The first node of road ij is i, and the end-node of branch road ij is j, PiFor the total power value of grid nodes i, P in target gridjFor target electricity
The total power value of grid nodes j, P in netGiFor the power value of described target grid node i, i is more than or equal to 1 and little
In the positive integer of n such as grade, n is the number of grid nodes in target grid, [Ad]ijFollowing current distribution moments for target grid branch road ij
Battle array.
Trend contribution obtains unit 403, for utilizing the downstream distribution matrix of target grid, it is thus achieved that in target grid each
The grid nodes trend contribution margin to each branch road.
In target grid, the trend contribution margin of each branch road is referred to by each grid nodes, each electrical network in this Branch Power Flow
Meritorious amount caused by node.Trend contribution margin determines based on downstream distribution matrix, and trend contribution obtains unit 403 and obtains
Trend contribution margin particularly as follows:
UtilizeObtain each grid nodes in target grid the trend of each branch road is contributed
Value.
Wherein, [Ad -1]ijFor the transposition of the downstream distribution matrix of target grid branch road ij, PkGeneral power for grid nodes k
Value, Pij,kFor the trend contribution margin to branch road ij of grid nodes k in target grid.
Amortization ratio obtains unit 404, for according to trend contribution margin, it is thus achieved that in target grid, each grid nodes is to respectively
The amortization ratio that the transmission of electricity of individual branch road takes.
The embodiment of the present invention can use following current tracking method calculate.It should be strongly noted that branch road top
Grid nodes is not in the transmission of electricity function using branch road.Such as, the trend on a branch road AB flows to B node from A node, and
And A and B two ends are all connected with lower network users, who uses paying, and does not use the transmission of electricity of branch road at this moment the user of A end
Function, therefore A end subscriber can not undertake multi-line power transmission expense, needs the use to circuit top (i.e. this Line Flow outflow end)
Family share the expenses ratio is adjusted.The scheme adjusted can be: when the first node i of the node k and circuit ij of user L is identical
Time, then making this node is 0 in the share the expenses ratio of this branch road, and this node deducts the tide at k node in the trend summation of transmission of electricity
As the denominator of calculating share the expenses ratio after stream, accordingly, amortization ratio obtains unit 404 and utilizes below equation calculating transmission of electricity expense
Amortization ratio:
UtilizeAnd Cij,k=0 (k=i), it is thus achieved that in target grid each
Each branch road is transmitted electricity the amortization ratio of expense by grid nodes, C thereinij,kFor grid nodes k in target grid to branch road ij
The amortization ratio taken of transmission of electricity.
It is to say, in the embodiment of the present invention, the amortization ratio of branch road head node is 0, and the amortization ratio of other nodes is pressed
Calculate according to above-mentioned formula and obtain.
Transmission of electricity takes acquisition unit 405, for based on described amortization ratio, it is thus achieved that each grid nodes in described target grid
Expense of always transmitting electricity.
The branch road transmission of electricity expense that in target grid, each grid nodes is shared is the tide to branch road of the user according to this grid nodes
Stream contribution proportion determines, transmission of electricity expense obtains unit 405 and obtains total transmission of electricity expense, realizes especially by the following manner:
UtilizeObtain the expense of always transmitting electricity of each grid nodes in target grid；
Wherein, FijFor the transmission of electricity expense of branch road ij, F in target gridkFor the expense of always transmitting electricity of grid nodes k in target grid.
Target transmission of electricity valency obtains unit 406, for utilize each grid nodes in described target grid total transmission of electricity expense and
Node electricity, it is thus achieved that the transmission of electricity valency of each grid nodes in described target grid.
Target transmission of electricity valency obtains unit 406 and can utilize Tk=Fk/QkObtain the transmission of electricity valency of each grid nodes, therein
QkFor in target grid grid nodes k node electricity, then TkFor the transmission of electricity valency of grid nodes k in target grid.
From such scheme, the calculating of a kind of extra-high-voltage alternating current grid nodes transmission of electricity valency that the embodiment of the present invention two provides
Device, by calculating the downstream distribution matrix of electrical network, and then obtains each node trend tribute to each branch road in electrical network
Offer value, and then obtain each node and each branch road is transmitted electricity the amortization ratio of expense, thus, utilize amortization ratio further to obtain
The expense of always transmitting electricity of each node in electrical network, the node electricity recycling each node is calculated the transmission of electricity valency of each node, it is achieved this
Embodiment purpose.It is different from the transmission of electricity valency setting scheme of a line monovalence in prior art, only according to customer charge or power consumption
Number share, do not consider the distance of transmission distance, the most do not consider to share the difference of ratio so that defeated electricity price level is the poorest
Not, cause the set inaccurate situation of transmission of electricity valency, the trend of each branch road is contributed by the present embodiment by each for electrical network node with
And the amortization ratio of expense of transmitting electricity each branch road is in view of in the calculating of the transmission of electricity valency of node, the accuracy of obtained transmission of electricity valency
Significantly improve.
Shown in Fig. 5, for each grid nodes of certain target grid in the whole extra-high-voltage alternating current electrical network shown in Fig. 1 is entered
The transmission of electricity valency that the unification of row transmission of electricity valency is appraised and decided calculates device, can also include based on this device:
Average transmission of electricity valency computing unit 407, for obtaining the summation of total transmission of electricity expense of each grid nodes in target grid,
Utilize summation and the summation of node electricity of total transmission of electricity expense of grid nodes in target grid, calculate grid nodes in target grid
Valency of averagely transmitting electricity.
Concrete, average transmission of electricity valency computing unit 407 each electrical network of target grid in calculating extra-high-voltage alternating current electrical network
During the average transmission of electricity valency of node, can be accomplished by:
UtilizeObtain the valency of averagely transmitting electricity of the grid nodes of target grid,For in target grid
The summation taken of always transmitting electricity of grid nodes,For the summation of the node electricity of grid nodes, T ' therein in target gridkFor
Transmission of electricity valency the is unified average transmission of electricity valency of institute's calculated target grid when appraising and deciding, A is that whole electrical network access extra-high-voltage alternating current is defeated
The set of grid nodes in the target grid of electrical network.
And the average transmission of electricity valency of each electrical network may be by the device acquisition in Fig. 5 in Fig. 1.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, be permissible
Instructing relevant hardware (such as processor) by computer program to complete, described program can be stored in a computer can
Reading in storage medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described deposit
Storage media can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body
(Random Access Memory, RAM) etc..
If the function described in the present embodiment method realizes and as independent product pin using the form of SFU software functional unit
When selling or use, a calculating device-readable can be stored in and take in storage medium.Based on such understanding, the embodiment of the present invention
The part contributing prior art or the part of this technical scheme can embody with the form of software product, and this is soft
Part product is stored in a storage medium, including some instructions with so that calculating equipment (can be personal computer,
Server, mobile computing device or the network equipment or processor etc.) perform the whole of method described in each embodiment of the present invention
Or part steps.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, same or similar part sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (12)
1. the computational methods of an extra-high-voltage alternating current grid nodes transmission of electricity valency, it is characterised in that including:
Gather trend value and the total power value of each grid nodes of each branch road in target grid；
Based on described trend value and described total power value, it is thus achieved that the downstream distribution matrix of described target grid；
Utilize the downstream distribution matrix of described target grid, it is thus achieved that in described target grid, each grid nodes is to each branch road
Trend contribution margin；
According to described trend contribution margin, it is thus achieved that in described target grid, each branch road is transmitted electricity the sharing of expense by each grid nodes
Ratio；
Based on described amortization ratio, it is thus achieved that the expense of always transmitting electricity of each grid nodes in described target grid；
Utilize total transmission of electricity expense and the node electricity of each grid nodes in described target grid, it is thus achieved that in described target grid each
The transmission of electricity valency of grid nodes.
Method the most according to claim 1, it is characterised in that also include:
Obtain the summation of total transmission of electricity expense of grid nodes in described target grid；
Utilize summation and the summation of node electricity of total transmission of electricity expense of grid nodes in described target grid, calculate described target electricity
The valency of averagely transmitting electricity of grid nodes in net.
Method the most according to claim 1, it is characterised in that described based on described trend value and described total power value, obtains
Obtain the downstream distribution matrix of described target grid, including:
UtilizeAndObtain the downstream distribution matrix of described target grid；
Wherein, Li-For in described target grid grid nodes i enter line collection, PijFor the trend of branch road ij in described target grid
Value, the first node of branch road ij is i, and the end-node of branch road ij is j, PiFor the total power value of grid nodes i in described target grid,
PjFor the total power value of grid nodes j, P in described target gridGiFor the power value of described target grid node i, i is big
In or equal to 1 and less than etc. the positive integer of n, n is the number of grid nodes in described target grid, [Ad]ijFor described target electricity
The downstream distribution matrix of net branch road ij.
Method the most according to claim 3, it is characterised in that utilize the downstream distribution matrix of described target grid, it is thus achieved that
Each grid nodes trend contribution margin to each branch road in described target grid, including:
UtilizeObtain each grid nodes trend contribution margin to each branch road in described target grid；
Wherein, [Ad -1]ijFor the transposition of the downstream distribution matrix of described target grid branch road ij, PkGeneral power for grid nodes k
Value, Pij,kFor the trend contribution margin to branch road ij of grid nodes k in described target grid.
Method the most according to claim 4, it is characterised in that according to described trend contribution margin, it is thus achieved that described target grid
In each grid nodes each branch road is transmitted electricity the amortization ratio of expense, including:
UtilizeAnd Cij,k=0 (k=i), it is thus achieved that in described target grid each
Each branch road is transmitted electricity the amortization ratio of expense by grid nodes；
Wherein, Cij,kThe amortization ratio of expense of branch road ij being transmitted electricity for grid nodes k in described target grid.
Method the most according to claim 5, it is characterised in that based on described amortization ratio, it is thus achieved that in described target grid
The expense of always transmitting electricity of each grid nodes, including:
UtilizeObtain total transmission of electricity expense of each grid nodes in described target grid；
Wherein, FijFor the transmission of electricity expense of branch road ij, F in described target gridkFor total transmission of electricity of grid nodes k in described target grid
Take.
7. the calculating device of an extra-high-voltage alternating current grid nodes transmission of electricity valency, it is characterised in that including:
Performance number collecting unit, for gathering trend value and the total power value of each grid nodes of each branch road in target grid；
Allocation matrix obtains unit, for based on described trend value and described total power value, it is thus achieved that the following current of described target grid
Allocation matrix；
Trend contribution obtains unit, for utilizing the downstream distribution matrix of described target grid, it is thus achieved that each in described target grid
The individual grid nodes trend contribution margin to each branch road；
Amortization ratio obtains unit, for according to described trend contribution margin, it is thus achieved that each grid nodes pair in described target grid
The amortization ratio that the transmission of electricity of each branch road takes；
Transmission of electricity takes acquisition unit, for based on described amortization ratio, it is thus achieved that in described target grid, each grid nodes is the most defeated
The electricity charge；
Target transmission of electricity valency obtains unit, for utilizing total transmission of electricity expense and the node electricity of each grid nodes in described target grid
Amount, it is thus achieved that the transmission of electricity valency of each grid nodes in described target grid.
Device the most according to claim 7, it is characterised in that also include:
Average transmission of electricity valency computing unit, for obtaining the summation of total transmission of electricity expense of grid nodes in described target grid, utilizes institute
State summation and the summation of node electricity of total transmission of electricity expense of grid nodes in target grid, calculate electrical network joint in described target grid
The valency of averagely transmitting electricity of point.
Device the most according to claim 7, it is characterised in that described allocation matrix obtain unit specifically for: utilizeAndObtain the downstream distribution matrix of described target grid；
Wherein, Li-For in described target grid grid nodes i enter line collection, PijFor the trend of branch road ij in described target grid
Value, the first node of branch road ij is i, and the end-node of branch road ij is j, PiFor the total power value of grid nodes i in described target grid,
PjFor the total power value of grid nodes j, P in described target gridGiFor the power value of described target grid node i, i is big
In or equal to 1 and less than etc. the positive integer of n, n is the number of grid nodes in described target grid, [Ad]ijFor described target electricity
The downstream distribution matrix of net branch road ij.
Device the most according to claim 9, it is characterised in that described trend contribution obtain unit specifically for: utilizeObtain each grid nodes trend contribution margin to each branch road in described target grid；
Wherein, [Ad -1]ijFor the transposition of the downstream distribution matrix of described target grid branch road ij, PkGeneral power for grid nodes k
Value, Pij,kFor the trend contribution margin to branch road ij of grid nodes k in described target grid.
11. devices according to claim 10, it is characterised in that described amortization ratio obtain unit specifically for: utilizeAnd Cij,k=0 (k=i), it is thus achieved that each grid nodes in described target grid
The amortization ratio of expense that each branch road is transmitted electricity；
Wherein, Cij,kThe amortization ratio of expense of branch road ij being transmitted electricity for grid nodes k in described target grid.
12. devices according to claim 11, it is characterised in that described transmission of electricity expense obtain unit specifically for: utilizeObtain total transmission of electricity expense of each grid nodes in described target grid；
Wherein, FijFor the transmission of electricity expense of branch road ij, F in described target gridkFor total transmission of electricity of grid nodes k in described target grid
Take.
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