CN106384301A - Power transmission charge allocation design scheme optimization method and system - Google Patents
Power transmission charge allocation design scheme optimization method and system Download PDFInfo
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Abstract
The invention relates to a power transmission charge allocation design scheme optimization method and system. Firstly information of a preset area is acquired, wherein the information includes the contact line in the preset area, the line length of the contact line, nodes connected with the contact line and basic power of the nodes; the marginal megawatt kilometer of the nodes is calculated based on a method of generation shift distribution factors; then the initial allocation charge of the nodes is calculated according to the marginal megawatt kilometer of the nodes so that a power transmission charge allocation design scheme is obtained; and when the initial allocation charge does not meet the preset earning proportion, the initial allocation charge is corrected through the preset correction constant so as to optimize the power transmission charge allocation design scheme. The reasonable earnings of a power grid company can be guaranteed by the obtained optimized power transmission charge allocation design scheme so that the market competition and development can be effectively promoted, reasonable planning and construction of the power grid can be promoted, and great guidance is provided for coordinated development of power supply construction and power grid construction.
Description
Technical field
The present invention relates to grid power transmission expense allocation field, more particularly to a kind of transmission cost allocation design excellent
Change method and system.
Background technology
Transmission Service is exactly by electric energy safe, economy, is transported to high-quality the process of consumer, and it is that contact generates electricity and uses
The bridge of electricity, is the sole support of electricity transaction.Rational transmission charges will provide correct economic signals to market member, promote
The optimization of transmission of electricity resource is made to use, meanwhile, transmission of electricity link also produces certain constraint and shadow to generating electricity with user in turn
Ring, the competition which user market is transmission price often can participate in a Power Generation actually has a great impact, so, defeated
Electric allocation of expenditures is one of electricity market key issue.
Transmission charges occupy an important position in the reliable and stable operation of electrical network, it be genco and big user it
Between carry out the guarantee of electricity transaction, with the fast development of China's economy, increasing to the demand of electric energy, and how will transmit electricity
Expense is reasonably shared between user and power plant and is particularly important, and existing transmission cost allocation design cannot
Ensure the reasonable benefit of grid company, promote the market competition and development, promote electrical network to make rational planning for construction and be power construction
Coordinated development with power grid construction provides guiding.
Content of the invention
Based on this it is necessary to for existing transmission cost allocation design cannot ensure grid company reasonable benefit,
The promotion market competition and development, promotion electrical network are made rational planning for and are built and the coordinated development offer for power construction and power grid construction
The problem of guiding, provide a kind of optimization method of rational transmission cost allocation design being applied to China's electricity market and
System.
A kind of optimization method of transmission cost allocation design, including step：
Obtain the information of predeterminable area, this information includes interconnection in predeterminable area, the line length of interconnection and connection
Node and the prime power of node that winding thread is connected；
Based on the information of predeterminable area, using the limit megawatt kilometer of the method calculate node of the transfer distribution factor that generates electricity；
The initial share the expenses of the limit megawatt kilometer calculate node according to node, obtains transmission cost allocation design side
Case；
When initial share the expenses is unsatisfactory for default benefit ratio, by default correction constant to initial share the expenses
It is modified, optimize transmission cost allocation design.
A kind of optimization system of transmission cost allocation design, including：
Data obtaining module, for obtaining the information of predeterminable area, this information includes interconnection in predeterminable area, contact
The prime power of the line length of line, the node being connected with interconnection and node；
Marginal megawatt kilometer computing module, for the information based on predeterminable area, using the side of the transfer distribution factor that generates electricity
The limit megawatt kilometer of method calculate node；
Initial share the expenses computing module, initially shares expense for the limit megawatt kilometer calculate node according to node
With obtaining transmission cost allocation design；
Expense correcting module, for when initial share the expenses is unsatisfactory for default benefit ratio, by default correction
Constant is modified to initial share the expenses, optimizes transmission cost allocation design.
The optimization method of above-mentioned transmission cost allocation design and system, obtain the information of predeterminable area, this letter first
Cease the interconnection including in predeterminable area, the basic training of the line length of interconnection, the node being connected with interconnection and node
Rate, based on the information of predeterminable area, using the limit megawatt kilometer of the transfer distribution factor calculate node that generates electricity, further according to node
The initial share the expenses of marginal megawatt kilometer calculate node, obtains transmission cost allocation design, when initial share the expenses not
When meeting default benefit ratio, by default correction constant, initial share the expenses is modified, optimizes transmission charges and divide
Stand design.Above-mentioned sharing of transmission charges is realized based on the method for the transfer distribution factor that generates electricity, and by revising often
Several initial share the expenses is modified, the transmission cost allocation design after the optimization so obtaining ensure that electrical network is public
The reasonable benefit of department and continuous ego integrity, effectively facilitate the market competition and development, promote electrical network to make rational planning for construction, for electricity
Source is built and power grid construction coordinated development provides and guides well.
Brief description
Fig. 1 is the schematic flow sheet of the optimization method of transmission cost allocation design in an embodiment；
Fig. 2 is that the flow process of sub-step S100 in the optimization method of transmission cost allocation design in an embodiment is illustrated
Figure；
Fig. 3 is that the flow process of sub-step S200 in the optimization method of transmission cost allocation design in an embodiment is illustrated
Figure；
Fig. 4 is that the flow process of sub-step S400 in the optimization method of transmission cost allocation design in an embodiment is illustrated
Figure；
Fig. 5 is the structural representation of the optimization system of transmission cost allocation design in an embodiment；
Fig. 6 is the structural representation of the optimization system Neutron module 100 of transmission cost allocation design in an embodiment；
Fig. 7 is the structural representation of the optimization system Neutron module 200 of transmission cost allocation design in an embodiment；
Fig. 8 is the structural representation of the optimization system Neutron module 400 of transmission cost allocation design in an embodiment.
Specific embodiment
As shown in figure 1, in one embodiment, a kind of optimization method of transmission cost allocation design, including as follows
Step：
Step S100, obtains the information of predeterminable area, and this information includes interconnection in predeterminable area, the circuit of interconnection
The prime power of length, the node being connected with interconnection and node.
Predeterminable area can be the different regions such as each department, each province and each city, and interconnection refers in power plant and electricity
Play the special wire of anastomosis between net and work as that is to say, that the electric energy that power plant sends can be sent to by electrical network by it
In it is also possible to the electric energy on electrical network is transferred back to power plant, interconnection can connect two power systems, two inter-provincial electrical networks,
Two transformer stations, even two power distribution stations, give full play to both sides sends out power supply capacity, promotes most optimum distribution of resources.In electrical network
In, node division can be generating node and load bus, thus, each node includes generating node and load bus.
Further, as shown in Fig. 2 step S100 includes step S120 and step S140.
Step S120, reads the data of predeterminable area from default file, and this data includes the interconnection of predeterminable area, connection
The circuit network structure of the line length of winding thread, the node being connected with interconnection and interconnection.
Specifically, can by MATLAB software from Excel file each node of reading area, interconnection circuit long
Degree and the circuit network structure of interconnection.
Step S140, this data is divided, the prime power of statistics node, and prime power includes generated output and bears
Lotus power.
Data numeral in Excel file is made a distinction, calculates generated output and the load power of each Area Node.
Step S200, based on the information of predeterminable area, using the limit of the method calculate node of the transfer distribution factor that generates electricity
Megawatt kilometer.
In electrical network, the change of certain branch road effective power flow is likely due to a branch road or several branch roads in electrical network and breaks
Open and cause, or caused due to the change of generated power output, this can use distribution factor
(Distribution Factor, DF) is describing.(Generation Shift Distribution Factor's GSDF generates electricity
Transfer distribution factor) method can in the case that system total load is constant rapidly according to node between generate electricity the situation of transfer
The change of calculating network trend.Using GSDF method calculate the impact to network trend for each node, and then determine node megawatt
Kilometer, and transmission charges are determined with this, in GSDF, the change entirely by reference to node power to carry out the flat of power
Weighing apparatus.
Further, as shown in figure 3, step S200 includes step S220, step S240, step S260 and step S280.
Step S220, is obtained the trend of interconnection, and is converted the line length of interconnection by default conversion factor
On the basis of length.
The trend of each interconnection and corresponding line length is obtained from the information of predeterminable area, will by conversion factor
Line length is converted to datum length, to substitute in subsequent calculations formula.Select certain type of certain electric pressure first
Network line as benchmark, its length is constant, and the length of other kinds of networking circuit is multiplied by default conversion factor and obtains base
Standard length, more meets reality with the length guaranteeing whole network circuit, thus, the region transmission of electricity share the expenses calculating more is closed
Reason.For example, on the basis of can selecting 400 kilovolts of networking circuit, the default conversion factor of 275 kilovolts of networking circuit is 1.74,
The default conversion factor of 132 kilovolts of network line is 2.61.
Step S240, basic megawatt of kilometer of calculate node, the trend that this basic megawatt of kilometer is equal to interconnection is multiplied by base
Standard length.
The trend that the limit megawatt kilometer of node is equal to region interconnection is multiplied by corresponding datum length, that is,
CMWkm=Fs×ls
Wherein, FsFor the trend of region interconnection s, lsDatum length for region interconnection s.
Step S260, megawatt kilometer of calculate node, when node increases the generated output of unit megawatt, in reference mode
Increase the load power of unit megawatt；When node increases the load power of unit megawatt, increase unit megawatt in reference mode
Generated output, the prime power that megawatt kilometer of node is equal to reference mode is multiplied by datum length.
Reference mode refers to the node that electricity sets in calculating, and the phase place of this node voltage can be appointed in complex number plane
Meaning is given, and in system, other node voltage phase places determine according to this node voltage phase place.GSDF represents to be increased in certain node
Unit power, when reference mode reduces corresponding power, the change of the power causing on each bar branch road.Megawatt kilometer of node
Computing formula：C'MWkm=F's×ls.
Step S280, the basic megawatt of kilometer that megawatt kilometer of node is deducted node obtains the limit megawatt public affairs of node
In.
Specifically, the expression formula of the limit megawatt kilometer to region interconnection for the node i：mi=C'MWkm-CMWkm.
Step S300, the initial share the expenses of the limit megawatt kilometer calculate node according to node, obtain transmission charges and divide
Stand design.
Specifically, the limit megawatt kilometer of node is multiplied by default enlarging coefficient and default factor of safety, calculates
The initial share the expenses of node, obtains transmission cost allocation design.Wherein, default enlarging coefficient reflection unit length allusion quotation
The expense on molded line road, default factor of safety reflects the cost of the system redundancy capacity that the requirement to margin of safety for the system causes.
The calculation expression of node initial cost：
TA,j=mA,j×E×S
TB,k=mB,k×E×S
Wherein, TA,jFor the share the expenses of region A interior joint j, mA,jLimit megawatt kilometer for region A interior joint j；TB,k
For the share the expenses of region B interior joint k, mB,kLimit megawatt kilometer for region B interior joint k.
Step S400, when initial share the expenses is unsatisfactory for default benefit ratio, by default correction constant to first
Beginning share the expenses is modified, and optimizes transmission cost allocation design.
The ratio of total transmission charges that default benefit ratio presets load and electromotor undertakes respectively is different
Country has different unified standards according to various countries' Transmission Pricing pattern, does not consider unit report in the electrical network usage charges of such as Britain
Valency is it is adaptable to bilateral model, the generating of Britain and the ratio of load are 0.27：0.83.
Further, as shown in figure 4, step S400 includes step S420 and step S440.
Step S420, when initial share the expenses is unsatisfactory for default benefit ratio, by default correction constant to section
The limit megawatt kilometer of point is modified.
Revise constant to pass through to solve the acquisition of equation below group：
Wherein RCT,AIt is the revised income obtaining from a-quadrant, PjGenerated output/load power for node j；RCT,B
It is the revised income obtaining from region, PkGenerated output/load power for node k；P is the revised income in a-quadrant
Account for the ratio value of total income.
S440, according to the limit megawatt kilometer of revised node, the share the expenses of calculate node, obtains the transmission of electricity optimizing
Expense allocation design.
With revising the share the expenses of constant C calculate node：
TCT,A,j=(mA,j+C)×E×S/1000
TCT,B,k=(mB,k-C)×E×S/1000
Wherein TCT,A,jFor the share the expenses of the node j region interconnection in a-quadrant, TCT,B,kFor the node k area in B region
The share the expenses of domain interconnection.
The optimization method of above-mentioned transmission cost allocation design, obtains the information of predeterminable area first, and this information includes
Interconnection in predeterminable area, the prime power of the line length of interconnection, the node being connected with interconnection and node, are based on
The information of predeterminable area, using the limit megawatt kilometer of the method calculate node of the transfer distribution factor that generates electricity, further according to node
The initial share the expenses of marginal megawatt kilometer calculate node, obtains transmission cost allocation design, when initial share the expenses not
When meeting default benefit ratio, by default correction constant, initial share the expenses is modified, optimizes transmission charges and divide
Stand design.Above-mentioned sharing of transmission charges is realized based on the method for the transfer distribution factor that generates electricity, and by revising often
Several initial share the expenses is modified, the transmission cost allocation design after the optimization so obtaining ensure that electrical network is public
The reasonable benefit of department and continuous ego integrity, effectively facilitate the market competition and development, promote electrical network to make rational planning for construction, for electricity
Source is built and power grid construction coordinated development provides and guides well.
In one embodiment, as shown in figure 5, a kind of optimization system of transmission cost allocation design, including：
Data obtaining module 100, for obtaining the information of predeterminable area, this information include interconnection in predeterminable area,
The prime power of the line length of interconnection, the node being connected with interconnection and node.
Predeterminable area can be the different regions such as each department, each province and each city, and interconnection refers in power plant and electricity
Play the special wire of anastomosis between net and work as that is to say, that the electric energy that power plant sends can be sent to by electrical network by it
In it is also possible to the electric energy on electrical network is transferred back to power plant, interconnection can connect two power systems, two inter-provincial electrical networks,
Two transformer stations, even two power distribution stations, give full play to both sides sends out power supply capacity, promotes most optimum distribution of resources.In electrical network
In, node division can be generating node and load bus, thus, each node includes generating node and load bus.
Further, as shown in fig. 6, data obtaining module 100 includes reading unit 120 and statistic unit 140.
Reading unit 120, for reading the data of predeterminable area from default file, this data includes the connection of predeterminable area
Winding thread, the circuit network structure of the line length of interconnection, the node being connected with interconnection and interconnection.
Specifically, can by MATLAB software from Excel file each node of reading area, interconnection circuit long
Degree and the circuit network structure of interconnection.
Statistic unit 140, for being divided data, counts generated output and the load power of node.
Data numeral in Excel file is made a distinction, calculates generated output and the load power of each Area Node.
Marginal megawatt kilometer computing module 200, for the information based on predeterminable area, using the transfer distribution factor that generates electricity
The limit megawatt kilometer of method calculate node.
In electrical network, the change of certain branch road effective power flow is likely due to a branch road or several branch roads in electrical network and breaks
Open and cause, or caused due to the change of generated power output, this can use distribution factor
(Distribution Factor) is describing.(Generation Shift Distribution Factor generates electricity and turns GSDF
Move distribution factor) method can in the case that system total load is constant rapidly according to node between generate electricity the situation meter of transfer
Calculate the change of network trend.Calculate the impact to network trend for each node using GSDF method, and then determine megawatt public affairs of node
In, and transmission charges are determined with this, in GSDF, the change entirely by reference to node power to carry out the balance of power.
Further, as shown in fig. 7, a marginal megawatt kilometer computing module 200 includes interconnection processing unit 220, basic
Megawatt kilometer computing unit 240, megawatt kilometer computing unit 260 and marginal megawatt kilometer computing unit 280.
Interconnection processing unit 220, for obtaining the trend of interconnection, and by default conversion factor by interconnection
Length on the basis of line length conversion.
The trend of each interconnection and corresponding line length is obtained from the information of predeterminable area, will by conversion factor
Line length is converted to datum length, to substitute in subsequent calculations formula.Select certain type of certain electric pressure first
Network line as benchmark, its length is constant, and the length of other kinds of networking circuit is multiplied by default conversion factor and obtains base
Standard length, more meets reality with the length guaranteeing whole network circuit, thus, the region transmission of electricity share the expenses calculating more is closed
Reason.For example, on the basis of can selecting 400 kilovolts of networking circuit, the default conversion factor of 275 kilovolts of networking circuit is 1.74,
The default conversion factor of 132 kilovolts of network line is 2.61.
Basic megawatt of kilometer computing unit 240, for basic megawatt of kilometer of calculate node, basic megawatt of kilometer is equal to connection
The trend of winding thread is multiplied by the datum length of interconnection.
The trend that the limit megawatt kilometer of node is equal to region interconnection is multiplied by corresponding datum length, that is,
CMWkm=Fs×ls
Wherein, FsFor the trend of region interconnection s, lsDatum length for region interconnection s.
Megawatt kilometer computing unit 260, for megawatt kilometer of calculate node, when node increases the generating work(of unit megawatt
During rate, increase the load power of unit megawatt in reference mode；When node increases the load power of unit megawatt, in reference node
Point increases the generated output of unit megawatt, and megawatt kilometer of node is multiplied by datum length equal to the prime power of reference mode.
Reference mode refers to the node that electricity sets in calculating, and the phase place of this node voltage can be appointed in complex number plane
Meaning is given, and in system, other node voltage phase places determine according to this node voltage phase place.GSDF represents to be increased in certain node
Unit power, when reference mode reduces corresponding power, the change of the power causing on each bar branch road.Megawatt kilometer of node
Computing formula：C'MWkm=F's×ls.
Marginal megawatt kilometer computing unit 280, for deducting, by megawatt kilometer, the limit that basic megawatt of kilometer obtains node
Megawatt kilometer.
The expression formula of the limit megawatt kilometer to region interconnection for the node i：mi=C'MWkm-CMWkm.
Initial share the expenses computing module 300, for initially sharing of the limit megawatt kilometer calculate node according to node
Expense, obtains transmission cost allocation design.
Specifically, the limit megawatt kilometer of node is multiplied by default enlarging coefficient and default factor of safety, calculates
The initial share the expenses of node, obtains transmission cost allocation design.Wherein, default enlarging coefficient reflection unit length allusion quotation
The expense on molded line road, default factor of safety reflects the cost of the system redundancy capacity that the requirement to margin of safety for the system causes.
Node initial cost calculation expression：
TA,j=mA,j×E×S
TB,k=mB,k×E×S
Wherein, TA,jFor the share the expenses of region A interior joint j, mA,jLimit megawatt kilometer for region A interior joint j；TB,k
For the share the expenses of region B interior joint k, mB,kLimit megawatt kilometer for region B interior joint k.
Expense correcting module 400, for when the initial share the expenses of node is unsatisfactory for default benefit ratio, by pre-
If revise constant the initial share the expenses of node is modified, optimize transmission cost allocation design.
The ratio of total transmission charges that default benefit ratio presets load and electromotor undertakes respectively is different
Country has different unified standards according to various countries' Transmission Pricing pattern, does not consider unit report in the electrical network usage charges of such as Britain
Valency is it is adaptable to bilateral model, the generating of Britain and the ratio of load are 0.27：0.83.
Further, as shown in figure 8, expense correcting module 400 includes marginal megawatt kilometer amending unit 420 and shares expense
With computing unit 440.
Marginal megawatt kilometer amending unit 420, for when initial share the expenses is unsatisfactory for default benefit ratio, passing through
Default correction constant is modified to the limit megawatt kilometer of node.
Revise constant to pass through to solve the acquisition of equation below group：
Wherein RCT,AIt is the revised income obtaining from a-quadrant, PjGenerated output/load power for node j；RCT,B
It is the revised income obtaining from region, PkGenerated output/load power for node k；P is the revised income in a-quadrant
Account for the ratio value of total income.
Share the expenses computing unit 440, for the limit megawatt kilometer according to revised node, the sharing of calculate node
Expense, obtains the transmission cost allocation design optimizing.
With revising the share the expenses of constant C calculate node：
TCT,A,j=(mA,j+C)×E×S/1000
TCT,B,k=(mB,k-C)×E×S/1000
Wherein TCT,A,jFor the share the expenses of the node j region interconnection in a-quadrant, TCT,B,kFor the node k area in B region
The share the expenses of domain interconnection.
The optimization system of above-mentioned transmission cost allocation design, obtains the information of predeterminable area first, and this information includes
Interconnection in predeterminable area, the prime power of the line length of interconnection, the node being connected with interconnection and node, are based on
The information of predeterminable area, using the limit megawatt kilometer of the method calculate node of the transfer distribution factor that generates electricity, further according to node
The initial share the expenses of marginal megawatt kilometer calculate node, obtains transmission cost allocation design, when initial share the expenses not
When meeting default benefit ratio, by default correction constant, initial share the expenses is modified, optimizes transmission charges and divide
Stand design.By sharing of transmission charges is realized based on the method for the transfer distribution factor that generates electricity in said system, and
Using revising constant, initial share the expenses is modified, the transmission cost allocation design after the optimization so obtaining can
Ensure the reasonable benefit of grid company and continuous ego integrity, effectively facilitate the market competition and development, promote electrical network rationally to advise
Draw and build, be power construction and power grid construction coordinated development provides and guides well.
Each technical characteristic of embodiment described above can arbitrarily be combined, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic applied in example is all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope of this specification record.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
Say, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of optimization method of transmission cost allocation design is it is characterised in that include step：
Obtain the information of predeterminable area, described information include interconnection in predeterminable area, the line length of described interconnection and
Node and the prime power of described node that described interconnection is connected；
Based on the information of described predeterminable area, calculate the limit megawatt public affairs of described node using the method for the transfer distribution factor that generates electricity
In；
The initial share the expenses of described node is calculated according to the limit megawatt kilometer of described node, obtains transmission cost allocation design
Scheme；
When described initial share the expenses is unsatisfactory for default benefit ratio, initially shared to described by default correction constant
Expense is modified, and optimizes described transmission cost allocation design.
2. the optimization method of transmission cost allocation design according to claim 1 is it is characterised in that described acquisition is pre-
If the information Step in region includes：
Read the data of predeterminable area from default file, described data includes the interconnection of predeterminable area, described interconnection
The circuit network structure of line length, the node being connected with described interconnection and described interconnection；
Described data is divided, is counted the prime power of described node, described prime power is included generated output and load
Power.
3. transmission cost allocation design according to claim 1 optimization method it is characterised in that described based on institute
State the information of predeterminable area, calculate the step bag of the limit megawatt kilometer of described node using the method for the transfer distribution factor that generates electricity
Include：
Obtain the trend of described interconnection, and by default conversion factor by the basis of the line length conversion of described interconnection
Length；
Calculate basic megawatt of kilometer of described node, the trend that described basic megawatt of kilometer is equal to described interconnection is multiplied by described base
Standard length；
Calculate megawatt kilometer of described node, when described node increases the generated output of unit megawatt, increase in reference mode
The load power of unit megawatt；When described node increases the load power of unit megawatt, increase unit megawatt in reference mode
Generated output, the prime power that megawatt kilometer of described node is equal to described reference mode is multiplied by described datum length；
The basic megawatt of kilometer that megawatt kilometer of described node is deducted described node obtains the limit megawatt kilometer of described node.
4. transmission cost allocation design according to claim 1 optimization method it is characterised in that described according to institute
The limit megawatt kilometer stating node calculates the initial share the expenses of described node, the step obtaining transmission cost allocation design
Including：
The limit megawatt kilometer of described node is multiplied by described default enlarging coefficient and default factor of safety, calculates described
The initial share the expenses of node, obtains transmission cost allocation design.
5. transmission cost allocation design according to claim 1 optimization method it is characterised in that described when described
When initial share the expenses is unsatisfactory for default benefit ratio, by default correction constant, described initial share the expenses is repaiied
Just, the step optimizing described transmission cost allocation design includes：
When described initial share the expenses is unsatisfactory for default benefit ratio, by the default correction side to described node for the constant
Border megawatt kilometer is modified；
According to the limit megawatt kilometer of revised described node, calculate the share the expenses of described node, obtain the transmission of electricity optimizing
Expense allocation design.
6. a kind of optimization system of transmission cost allocation design is it is characterised in that include：
Data obtaining module, for obtaining the information of predeterminable area, described information includes interconnection in predeterminable area, described
The prime power of the line length of winding thread, the node being connected with described interconnection and described node；
Marginal megawatt kilometer computing module, for the information based on described predeterminable area, using the side of the transfer distribution factor that generates electricity
Method calculates the limit megawatt kilometer of described node；
Initial share the expenses computing module, calculates initially sharing of described node for the limit megawatt kilometer according to described node
Expense, obtains transmission cost allocation design；
Expense correcting module, for when described initial share the expenses is unsatisfactory for default benefit ratio, by default correction
Constant is modified to described initial share the expenses, optimizes described transmission cost allocation design.
7. the optimization system of transmission cost allocation design according to claim 6 is it is characterised in that described information obtains
Delivery block includes：
Reading unit, for from default file read predeterminable area data, described data include predeterminable area interconnection,
The circuit network structure of the line length of described interconnection, the node being connected with described interconnection and described interconnection；
Statistic unit, for being divided described data, counts the prime power of described node, and described prime power includes sending out
Electrical power and load power.
8. the optimization system of transmission cost allocation design according to claim 6 is it is characterised in that described marginal million
Watt kilometer computing module includes：
Interconnection processing unit, for obtaining the trend of described interconnection, and by default conversion factor by described interconnection
Line length conversion on the basis of length；
Basic megawatt of kilometer computing unit, for calculating basic megawatt of kilometer of described node, described basic megawatt of kilometer is equal to
The trend of described interconnection is multiplied by the datum length of described interconnection；
Megawatt kilometer computing unit, for calculating megawatt kilometer of described node, when described node increases the generating of unit megawatt
During power, increase the load power of unit megawatt in reference mode；When described node increases the load power of unit megawatt,
Reference mode increases the generated output of unit megawatt, and megawatt kilometer of described node is taken advantage of equal to the prime power of described reference mode
With described datum length；
Marginal megawatt kilometer computing unit, the basic megawatt of kilometer for megawatt kilometer of described node deducts described node obtains
Limit megawatt kilometer to described node.
9. the optimization system of transmission cost allocation design according to claim 6 is it is characterised in that described initial point
Stand expense computing module includes：
The limit megawatt kilometer of described node is multiplied by described default enlarging coefficient and default factor of safety, calculates described
The initial share the expenses of node, obtains transmission cost allocation design.
10. the optimization system of transmission cost allocation design according to claim 6 is it is characterised in that described expense
Correcting module includes：
Marginal megawatt kilometer amending unit, for when described initial share the expenses is unsatisfactory for default benefit ratio, by pre-
If revise constant the limit megawatt kilometer of described node is modified；
Share the expenses computing unit, for the limit megawatt kilometer according to revised described node, calculates dividing of described node
Stand expense, obtains the transmission cost allocation design optimizing.
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