CN107123985A - Consider the power transmission and distribution transmission fixed cost allocation method and system of micro-capacitance sensor complex transaction - Google Patents

Consider the power transmission and distribution transmission fixed cost allocation method and system of micro-capacitance sensor complex transaction Download PDF

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CN107123985A
CN107123985A CN201710296295.5A CN201710296295A CN107123985A CN 107123985 A CN107123985 A CN 107123985A CN 201710296295 A CN201710296295 A CN 201710296295A CN 107123985 A CN107123985 A CN 107123985A
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calculated
power transmission
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杜松怀
胡晨
王梦真
苏娟
童光毅
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China Agricultural University
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China Agricultural University
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
    • Y04S50/14—Marketing, i.e. market research and analysis, surveying, promotions, advertising, buyer profiling, customer management or rewards

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Abstract

The embodiment of the present invention provides a kind of power transmission and distribution transmission fixed cost allocation method and system for considering micro-capacitance sensor complex transaction.Methods described includes obtaining transaction to be calculated in the corresponding flow data of each branch road of network system；Judge transaction to be calculated in the transaction direction of each branch road；The power transmission and distribution fixed cost expense that transaction to be calculated should share is calculated using power transmission and distribution transmission fixed cost allocation model, wherein, power transmission and distribution transmission fixed cost allocation model is set up according to the excitation allowance of the transaction direction of transaction to be calculated, the basic capacity expense that should share, spare capacity expense and acquisition.The system is used to perform methods described.The embodiment of the present invention is by judging the transaction direction of transaction to be calculated, and calculate the power transmission and distribution fixed cost expense that transaction to be calculated should share using power transmission and distribution transmission fixed cost allocation model, make the complex transaction (especially by micro-capacitance sensor participate in caused by) under electricity market open environment, can be fairer and more reasonable share power transmission and distribution fixed cost expense.

Description

Power transmission and distribution fixed cost allocation method and system considering microgrid complex transaction
Technical Field
The embodiment of the invention relates to the technical field of power systems, in particular to a method and a system for allocating fixed power transmission and distribution cost considering complex transactions of a micro-grid.
Background
With increasingly remarkable energy crisis and environmental deterioration problems, China vigorously researches and develops new energy and renewable energy, and builds 'high-proportion renewable energy' as the development target of future power systems. Under the promotion of energy demand and policy encouragement, new energy micro-grids are vigorously developed. In addition, in 15 days 3 and 2015, the public central office and the state department issue a plurality of opinions about further advanced power system innovation, and the microgrid is allowed to be used as a novel electricity selling main body to participate in market competition at the electricity selling side. Therefore, with the access of a large number of micro-grids, the problem of power transmission and distribution cost sharing of the main grid becomes an important research task for smoothly carrying out transactions on the micro-grids.
The core problem of reasonable power transmission and distribution price is to measure and calculate the real power transmission and distribution cost and reasonably distribute the cost. The fixed cost occupies a large proportion of the total power transmission and distribution cost, so the allocation method of the fixed cost directly influences the condition of recovering the power transmission and distribution cost of a power grid company and the fairness and rationality of the market.
In the traditional electric power market, electric power consumers and power generation enterprises are all single transaction types (buying or selling electric power) from beginning to end, however, the micro-grid freely selects and switches the transaction types according to the electric power market and the self condition. At present, although the conventional power transmission and distribution fixed cost allocation method based on accounting is simple and easy to understand and operate, the conventional power transmission and distribution fixed cost allocation method cannot meet the complex and variable market conditions when a micro-grid participates in transaction, and does not have economic guidance, so that the problem that the power transmission and distribution fixed cost allocation is unfair is caused, and therefore a new power transmission and distribution fixed cost allocation method needs to be provided to solve the problem.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a power transmission and distribution fixed cost allocation method and system considering microgrid complex transactions.
In a first aspect, an embodiment of the present invention provides a power transmission and distribution fixed cost apportionment method considering a microgrid complex transaction, including:
obtaining load flow data corresponding to each branch of a power grid system for transaction to be calculated;
judging the transaction direction of the transaction to be calculated in each branch, wherein the transaction direction comprises a forward transaction and a reverse transaction;
and calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
In a second aspect, an embodiment of the present invention provides a power transmission and distribution fixed cost apportionment system, including:
the acquisition module is used for acquiring load flow data corresponding to the transaction to be calculated in each branch of the power grid system;
the judging module is used for judging the transaction direction of the transaction to be calculated in each branch, and the transaction direction comprises forward transaction and reverse transaction;
and the calculation module is used for calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
In a third aspect, an embodiment of the present invention provides another power transmission and distribution fixed cost apportionment system, including: a processor, a memory, and a bus, wherein,
the processor and the memory are communicated with each other through the bus;
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform a method comprising:
obtaining load flow data corresponding to each branch of a power grid system for transaction to be calculated;
judging the transaction direction of the transaction to be calculated in each branch, wherein the transaction direction comprises a forward transaction and a reverse transaction;
and calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, including:
the non-transitory computer readable storage medium stores computer instructions that cause the computer to perform a method comprising:
obtaining load flow data corresponding to each branch of a power grid system for transaction to be calculated;
judging the transaction direction of the transaction to be calculated in each branch, wherein the transaction direction comprises a forward transaction and a reverse transaction;
and calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
According to the power transmission and distribution fixed cost allocation method and system considering the microgrid complex transaction, the transaction direction of the transaction to be calculated is judged, and the power transmission and distribution fixed cost allocation model is used for calculating the power transmission and distribution fixed cost to be allocated to the transaction to be calculated, so that the complex transaction (particularly caused by participation of the microgrid) in the open environment of the power market can be allocated more fairly and reasonably.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a power transmission and distribution fixed cost allocation method according to an embodiment of the present invention;
FIG. 2 is a graph of capacity relationships provided by an embodiment of the present invention;
fig. 3 is a schematic flow chart of a power transmission and distribution fixed cost allocation method according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a power transmission and distribution fixed cost allocation system according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fixed cost allocation system for power transmission and distribution according to another embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a fixed power transmission and distribution cost apportionment system according to another embodiment of the present invention;
fig. 7 is a schematic physical structure diagram of a power transmission and distribution fixed cost allocation system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flow chart of a method for allocating fixed power transmission and distribution costs according to an embodiment of the present invention, as shown in fig. 1, the method includes:
step 101: obtaining load flow data corresponding to each branch of a power grid system for transaction to be calculated;
specifically, load flow data corresponding to all transactions in the power grid system are calculated, and for the fixed cost of power transmission and distribution to be shared by the transactions to be calculated, the load flow data corresponding to each branch in the whole power grid system of the transactions to be calculated need to be obtained. And determining the distribution condition of each transaction in each branch by using a power flow tracking method, and providing power flow data for calculating the fixed cost of power transmission and distribution.
Suppose that there are N transactions in the electricity market during a certain period, and one of the transactions is defined as transaction i (i equals to 1,2,3, …, N). When the trend of the transaction i caused in the branch is consistent with the trend direction of the power system, determining that the transaction i is a forward transaction; and when the flow caused by the transaction i in the branch circuit is opposite to the flow direction of the power system, judging that the transaction i is a reverse transaction.
Assume that there are M branches in the power transmission and distribution system, and one of the branches is defined as branch k (k is 1,2,3, …, M).
The total fixed cost of the whole power transmission and distribution system is the sum of the fixed cost of each branch, and the calculation formula is as follows:
in the formula:
Ctotalthe total fixed cost of the power grid system;
Ckthe fixed cost of branch k in the grid system.
The cost of each branch is shared by each transaction influencing the branch flow, and the fixed cost calculation formula of the branch k is as follows:
wherein, Ck(i) A fixed cost split is required in branch k for transaction i.
The fixed cost required to be allocated for each transaction is the sum of the fixed costs to be allocated to each branch through which the transaction flows, and the calculation formula is as follows:
tp (i) the fixed cost of power transmission and distribution amortized for transaction i.
In branch k, the rated capacity isCorresponding fixed cost of Ck(ii) a Basic capacity (Basic capacity), i.e. the actual power flow through the branch, is fkCorresponding to a base capacity cost of CBk(ii) a Spare capacity (Reserve capacity) ofCorresponding spare capacity cost of CRk. Fig. 2 is a diagram of the relationship between capacities according to the embodiment of the present invention, as shown in fig. 2:
the cylinder represents the branch k, the lower shaded part represents the basic capacity actually occupied by the branch, the upper blank part represents the spare capacity of the branch, and the black arrow represents the branch flow direction. The following formula can be constructed:
Ck＝CBk+CRk；
step 102: judging the transaction direction of the transaction to be calculated in each branch, wherein the transaction direction comprises a forward transaction and a reverse transaction;
specifically, the transaction direction of the transaction to be calculated in each branch of the power grid system is determined, because the transaction direction may affect the calculation method of the power transmission and distribution fixed cost expense to be shared by the transaction to be calculated, wherein the transaction direction includes a forward transaction and a reverse transaction, and the specific determination method is as follows:
for a typical load, the transaction i to be calculated is generally a forward transaction, but for a microgrid, the transaction direction is related to the operating state of the microgrid.
The micro-grid can be divided into an independent type and a connected type. The independent micro-grid only has an independent operation state; the networking type micro-grid can select independent operation or grid-connected operation according to a main grid scheduling instruction or the self operation condition. (1) When the micro-grid operates independently, the micro-grid is not connected with the main grid, so that the micro-grid does not need to bear the power transmission and distribution fee. (2) When the micro-grid is connected to the power grid, as for a main power grid, the trend of the main power grid can flow in two directions, and the transaction direction can also change along with the change: (a) when the generated power output of the micro-grid power supply cannot meet the power consumption requirements of all loads in the micro-grid, the power supply must depend on the main power grid, and at the moment, the tide flows from the main power grid to the micro-grid, so that the forward transaction is realized. (b) When the power generation output of the micro-grid power supply can ensure that all loads in the micro-grid can safely and stably operate, the power generation capacity is still available, the surplus electric quantity can be returned to the main power grid for other loads outside the micro-grid to use, and at the moment, the tide flows from the micro-grid to the main power grid, so that reverse transaction is realized. Whether the micro-grid meets the self-use requirement or not can be judged by calculating the electric quantity required to be consumed and the electric quantity capable of being generated by the micro-grid.
Step 103: and calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
Specifically, the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated is calculated by utilizing a pre-established power transmission and distribution fixed cost allocation model according to the acquired power flow data and transaction direction of the transaction to be calculated corresponding to each branch of the power grid system. The power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity cost to be allocated, the spare capacity cost to be allocated and the obtained incentive subsidy cost, and the calculation mode of the power transmission and distribution fixed cost allocation model is influenced due to the fact that the transaction directions of the transaction to be calculated are different.
The steps can be used for calculating the power transmission and distribution fixed cost to be shared for all transactions in the power grid system.
According to the embodiment of the invention, the transaction direction of the transaction to be calculated is judged, and the power transmission and distribution fixed cost sharing model is utilized to calculate the power transmission and distribution fixed cost to be shared by the transaction to be calculated, so that the complex transaction (particularly caused by participation of a micro-grid) in an open environment of an electric power market can share the power transmission and distribution fixed cost more fairly and reasonably.
On the basis of the above embodiment, the method further includes:
and acquiring the topological structure of the power grid system, and simplifying the topological structure.
Specifically, before calculating load flow data of all transactions in the whole power grid system, the calculation steps can be simplified by simplifying the topological structure of the power grid system, and the specific simplification method is as follows:
the loads or power supplies at the same node of the power grid system can share the fixed cost of power transmission and distribution which is respectively borne according to the proportion of the loads or power generation, so that the loads or power supplies at the same node can be combined and calculated uniformly, and the calculation steps are simplified.
According to the embodiment of the invention, the calculation of the load flow data of each transaction in the power grid system is simplified by simplifying the topological structure of the power grid system, the fixed power transmission and distribution cost to be calculated and to be shared in the transaction is calculated by utilizing the fixed power transmission and distribution cost sharing model according to the transaction direction by judging the transaction direction, the accuracy of the sharing of the fixed power transmission and distribution cost is improved, and the sharing of the fixed power transmission and distribution cost is more fair.
On the basis of the above embodiment, the method further includes:
establishing the power transmission and distribution fixed cost allocation model; wherein,
when the transaction to be calculated is a forward transaction, the fixed power transmission and distribution cost to be allocated to the transaction to be calculated is the sum of the basic capacity cost to be allocated to the transaction to be calculated and the spare capacity cost to be allocated to the transaction to be calculated;
and when the transaction to be calculated is a reverse transaction, the fixed power transmission and distribution cost to be allocated for the transaction to be calculated is the difference between the spare capacity cost to be allocated for the transaction to be calculated and the incentive subsidy cost obtained by the transaction to be calculated.
Specifically, a power transmission and distribution fixed cost allocation model is established, and the specific establishment method comprises the following steps:
when the transaction to be calculated is a forward transaction, the fixed power transmission and distribution cost to be allocated for the transaction to be calculated is the sum of the basic capacity cost to be allocated for the transaction to be calculated and the spare capacity cost to be allocated for the transaction to be calculated. When the transaction to be calculated is a reverse transaction, the transaction to be calculated contributes to the power transmission and distribution line of the main power grid, and a certain reward needs to be given to the transaction to be calculated at the moment, so that incentive subsidy cost is introduced, subsidy is carried out on the transaction to be calculated, and the fixed power transmission and distribution cost of the transaction to be calculated, which is to be allocated in the whole power grid system, is the difference between the spare capacity cost allocated to the transaction to be calculated and the incentive subsidy cost obtained by the transaction to be calculated.
According to the embodiment of the invention, the transaction directions of the transaction to be calculated are discussed in different situations, in addition, the incentive factors are introduced, the distribution of the fixed cost of power transmission and distribution can be reduced when the micro-grid relieves the pressure of the main power grid, and the distribution of the fixed cost of power transmission and distribution is increased when the pressure of the main power grid is intensified or the adverse disturbance to the power grid system is caused, so that the economic signal is used as an economic signal to guide the micro-grid to carry out power transaction in a proper time period.
On the basis of the above embodiment, the power transmission and distribution fixed cost allocation model is:
wherein TP (i) is the fixed cost expense of power transmission and distribution to be shared by the transaction i to be calculated, TPB(i) The basic volume charge, TP, to be apportioned for the transaction i to be calculatedR(i) The reserve capacity charge, TP, to be apportioned for the transaction i to be calculatedI(i) The incentive subsidy fee obtained for the transaction i to be calculated.
Specifically, the fixed cost allocation model for power transmission and distribution is as follows:
wherein TP (i) is the fixed cost of power transmission and distribution to be shared by the transaction i to be calculated, and TPB(i) For the basic volume charge to be allocated to the transaction i to be calculated, TPR(i) Reserve capacity charge, TP, to be apportioned for transaction i to be calculatedI(i) Incentives to obtain for a transaction i to be computedAnd (5) subsidizing the expense.
When the transaction i to be calculated is a forward transaction, using TP (i) ═ TPB(i)+TPR(i) Calculating to obtain the fixed cost expense of power transmission and distribution to be shared by the calculation transaction i; when the transaction i to be calculated is a forward transaction, using TP (i) ═ TPR(i)-TPI(i) And calculating to obtain the fixed cost expense of power transmission and distribution to be shared by the calculation transaction i.
According to the embodiment of the invention, the transaction direction of the transaction to be calculated is judged, and the power transmission and distribution fixed cost sharing model is utilized to calculate the power transmission and distribution fixed cost to be shared by the transaction to be calculated, so that the complex transaction (particularly caused by participation of a micro-grid) in an open environment of an electric power market can share the power transmission and distribution fixed cost more fairly and reasonably.
On the basis of the above-described embodiment, the basic capacity cost TP to be shared by the transaction i to be calculatedB(i) The calculation formula of (2) is as follows:
wherein, CBKFor the basic capacity cost of the branch k in the power grid system, k is more than 0 and is an integer, fk(i) The flow data in the branch k for the transaction i to be calculated, fk(s) trading said tidal current data of s in said branch k, Ωk+A set of said transactions comprising said forward power flow in said branch k;
in particular, in the fixed cost allocation model for power transmission and distribution, TPB(i) The basic capacity cost of each branch of the power grid system is allocated by the corresponding trend f (i) when the transaction i to be calculated is a forward transaction, and the basic capacity cost of the branch k is allocated only by the participants of the forward trend passing through the branch. The specific calculation formula of the basic capacity charge to be shared by the transaction i to be calculated is as follows:
wherein, CBKThe cost of the basic capacity of a branch k in the power grid system, k is more than 0 and is an integer, fk(i) For the flow data of the transaction i to be calculated in the branch k, fk(s) is the tidal flow data of transaction s in branch k, Ωk+Is the set of transactions in branch k that contain forward power flow.
In addition, byTo calculate the basic capacity cost C of branch kBKWherein, CKFor a fixed cost of branch k, fkFor the actual power flow of the branch k,is the rated capacity of branch k;
therefore, the basic capacity charge to be shared by the transaction i to be calculated in the power grid system can be calculated through the calculation formula.
The spare capacity cost TP to be allocated to the transaction i to be calculatedR(i) The calculation formula of (2) is as follows:
wherein, CRKThe spare capacity cost, f, for the branch kk(i) The flow data in the branch k for the transaction i to be calculated, fk(s) is the trend data, Ω, of the transaction s in the branch kkThe branch k is a set of transactions containing all trends;
specifically, TPR(i) Is the spare capacity cost shared by each branch through which the trend f (i) corresponding to the transaction i to be calculated passes. Since all participants in the transaction have a need for reliability of the power supply, the power supply system is used in the marketThe spare capacity charge for branch k should be shared by all transactions associated with that branch, i.e. both forward and reverse transactions. The specific calculation formula of the reserve capacity charge to be allocated to the transaction i to be calculated is as follows:
wherein, CRKCost of spare capacity for branch k, fk(i) For the flow data of the transaction i to be calculated in the branch k, fk(s) is the tidal flow data of transaction s in branch k, ΩkA set of transactions comprising all trends in the branch k;
in addition, by the formulaThe current spare capacity cost of branch k can be calculated, where: ckFor the total cost of branch k, fkAs the actual power flow data of the branch k,is the nominal capacity of branch k.
The incentive subsidy cost TP obtained by the transaction i to be calculatedI(i) The calculation formula of (2) is as follows:
TPI(i)＝μ·CE；
wherein μ is an incentive factor corresponding to the transaction i to be calculated, and a calculation formula of the incentive factor μ is as follows:
μ＝μT·μL；
wherein, muTA time interval exciting factor mu corresponding to the current transaction time interval of the transaction i to be calculatedLExciting factors for the geographic position corresponding to the transaction i to be calculated;
specifically, when the transaction i to be calculated is reverseAt the time of transaction, TPI(i) The incentive subsidy fee obtained for the calculated transaction i, which may pass through TPI(i)＝μ·CEThe calculation is carried out, wherein mu is the incentive factor corresponding to the transaction i to be calculated.
The excitation factor includes a time interval excitation factor muTAnd a geographic location incentive muL. The incentive factors need to establish a standard in a unified mode, so that micro-grids in different transaction periods and different geographic positions can reasonably and fairly distribute fixed cost of power transmission and distribution.
Time interval excitation factor muTThe value is divided into positive and negative numbers, the positive number represents the reward, the negative number represents the punishment, and the absolute value of the numerical value represents the reward or punishment degree. The power grid system comprises a main power grid and a micro-grid, wherein the main power grid has a normal power utilization period and a power utilization peak-valley period, the micro-grid in grid-connected operation can generate different degrees of influence on the operation and scheduling of the power system in different periods of transaction, and the specific analysis is as follows:
(1) the main grid is in a normal electricity usage period. The trend generated by the transaction of the micro-grid occupies a certain power transmission line of the main grid, and the normal power transmission and distribution service fee is paid as the same as other transactions in the market, and at the moment, the time interval exciting factor muTIs 0.
(2) The main grid is in peak periods of electricity usage. The reverse transaction of the microgrid can effectively relieve the transmission pressure of a blocking line near the microgrid, is beneficial to the safe operation of a power system, and the fixed cost, mu, of power transmission and distribution should be reduced at the momentTPositive, the micro-grid is stimulated to carry out electricity selling transaction, and muTIs proportional to the degree of line blockage in the grid.
(3) The main power grid is in the valley period. The micro-grid and the user develop reverse transactions in the electricity consumption valley period according to the agreement, so that the power supply of the traditional energy power plant can be inhibited, and the use efficiency of new energy is improved. At the moment, the slowing degree mu of the fixed cost sharing expense of power transmission and distribution is determined according to the indirect contribution degree of the micro-grid to the main gridTIs positive, and its specific value is opposite to main powerThe contribution degree of the network is in direct proportion, the proportional scale can be set according to the actual situation, and the embodiment of the invention is not particularly limited to this.
(4) At any time, the micro-grid participates in the electric power market transaction, a plan must be made in advance and executed strictly according to the plan, otherwise the overall scheduling difficulty of the system is increased. If the micro-grid transaction has a certain disturbance effect on the original market order, or the quality of the generated electric energy is unstable, muTFor negative numbers, more fixed costs of power transmission and distribution are amortized as penalties, and muTThe specific value (absolute value) of (a) is proportional to the size of the disturbance generated by the (b), and the proportional scale can be set according to the actual situation, which is not specifically limited in the embodiment of the present invention.
Geographic location incentive muLAll are positive numbers, the larger the numerical value is, the closer the transaction to be calculated is to the easily blocked line of the power grid system, the larger the effect on relieving the line blockage is, and the value isLThe specific value of (A) is inversely proportional to the distance of the easily blocked line of the power grid system, and the closer the distance is, the more muLThe larger the value; it is understood that the lines that are susceptible to blockage in the grid system may be obtained from historical data.
CEAn energy subsidy amount CEThe calculation formula of (2) is as follows:
CE＝∑pjg(j)；
wherein p isjThe energy source coefficient corresponding to the energy source j, and pjAnd g (j) is the amount of electricity delivered by the energy source j.
In particular, by CE＝∑pjg (j) calculating the energy subsidy amount to be obtained by the energy generated by the micro-grid, wherein pjThe energy subsidy coefficient corresponding to the energy j is the subsidy amount corresponding to the unit electric energy transmitted outside the micro-grid area by the energy j, the energy is new energy, pjThe specific numerical values of (A) are related to energy types, power supply persistence, power generation stability and the like, and are positive numbers, and the larger the numerical value is, the larger the numerical value isThe more stable the power generation quality of the energy source is, the more stable g (j) is the electric power delivered by the energy source j.
For micro-grid with multi-energy power generation, CEIs the sum of the incentive subsidy sums corresponding to various energy sources.
The embodiment of the invention can solve the problem of the distribution of the fixed power transmission and distribution cost in different scenes of forward transaction or reverse transaction of the micro-grid under the power market environment by judging the transaction direction of the transaction to be calculated and calculating the fixed power transmission and distribution cost to be distributed by the transaction to be calculated by using the fixed power transmission and distribution cost distribution model, ensures that each transaction fairly bears the fixed power transmission and distribution cost according to the resource utilization degree of the transaction to the power transmission and distribution network, and the exciting factors are introduced, so that the influences of different transaction periods and the geographical positions of the micro-grid can be reflected, for the transaction which is favorable for relieving the transmission and distribution jam, the fixed cost expense of less apportionment of transmission and distribution is given as the reward, for the transaction which is possible to aggravate the congestion degree of power transmission and distribution, the allocation of the fixed cost expense of power transmission and distribution is increased to serve as a penalty, and the incentive factor serves as an economic signal to correctly guide the microgrid to participate in market transaction.
Fig. 3 is a schematic flow chart of a method for allocating fixed power transmission and distribution costs according to another embodiment of the present invention, as shown in fig. 3, the method includes;
step 301: simplifying a system topological structure and carrying out load flow calculation; the method comprises the steps of obtaining a topological structure of a power grid system, simplifying the topological structure, specifically, combining loads and power supplies under the same node, calculating load flow data corresponding to each transaction in the power grid system, and obtaining load flow data of the transaction to be calculated.
Step 302: establishing a power transmission and distribution fixed cost allocation model; according to the difference of transaction directions, a power transmission and distribution fixed cost allocation model is established, and the method specifically comprises the following steps:
that is, when the transaction to be calculated is a forward transaction, the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated is the sum of the basic capacity expense to be allocated to the transaction to be calculated and the spare capacity expense to be allocated to the transaction to be calculated;
and when the transaction to be calculated is a reverse transaction, the fixed power transmission and distribution cost to be allocated for the transaction to be calculated is the difference between the spare capacity cost to be allocated for the transaction to be calculated and the incentive subsidy cost obtained by the transaction to be calculated.
Step 303: judging the transaction direction; judging the transaction direction of the transaction to be calculated; the judgment criterion is as follows: when the direction of the power flow caused by the transaction to be calculated in the branch is consistent with the direction of the power flow of the power system, the transaction to be calculated is judged to be a forward transaction, and when the direction of the power flow caused by the transaction to be calculated in the branch is opposite to the direction of the power flow of the power system, the transaction to be calculated is judged to be a reverse power flow. If the transaction to be computed is a forward transaction, step 304 is performed, and if the transaction to be computed is a reverse transaction, step 305 is performed.
Step 304: calculating a basic capacity charge and a spare capacity charge; when the transaction i to be calculated is a forward transaction, using TP (i) ═ TPB(i)+TPR(i) Calculating to obtain the power transmission and distribution fixed cost expense to be shared by the calculation transaction i, wherein TP (i) is the power transmission and distribution fixed cost expense to be shared by the calculation transaction i, and TPB(i) For the basic volume charge to be allocated to the transaction i to be calculated, TPR(i) Spare capacity charge to be allocated for transaction i to be calculated;
step 305: calculating spare capacity cost and incentive subsidy cost; when the transaction i to be calculated is a reverse transaction, using TP (i) ═ TPR(i)-TPI(i) Calculating to obtain the power transmission and distribution fixed cost expense to be shared by the calculation transaction i, wherein TP (i) is the power transmission and distribution fixed cost expense to be shared by the calculation transaction i, and TPR(i) Reserve capacity charge, TP, to be apportioned for transaction i to be calculatedI(i) The incentive subsidy fee is obtained for transaction i to be calculated.
Step 306: obtaining the fixed cost expense of power transmission and distribution to be shared by all transactions in the system; according to the steps, the fixed cost of power transmission and distribution which should be shared by all transactions in the power grid system can be calculated.
The embodiment of the invention judges the transaction direction of the transaction to be calculated and calculates the power transmission and distribution fixed cost expense to be shared by the transaction to be calculated by utilizing the power transmission and distribution fixed cost sharing model, so that the sharing of the power transmission and distribution fixed cost expense is more fair.
Fig. 4 is a schematic structural diagram of a power transmission and distribution fixed cost apportionment system according to an embodiment of the present invention, and as shown in fig. 4, the system includes: an obtaining module 401, a judging module 402 and a calculating module 403, wherein:
the obtaining module 401 is configured to obtain load flow data corresponding to each branch of the power grid system for a transaction to be calculated; the judging module 402 is configured to judge a transaction direction of the transaction to be computed in each branch, where the transaction direction includes a forward transaction and a reverse transaction; the calculating module 403 is configured to calculate, according to the trend data and the transaction direction, a power transmission and distribution fixed cost allocation model to be allocated to the transaction to be calculated, where the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity cost to be allocated, the spare capacity cost to be allocated, and the obtained incentive subsidy cost.
Specifically, the obtaining module 401 calculates load flow data corresponding to all transactions in the power grid system, and for the fixed cost electric expenses to be shared by the transactions to be calculated, the load flow data corresponding to each branch in the whole power grid system of the transactions to be calculated needs to be obtained. And determining the distribution condition of each transaction in each branch by using a power flow tracking method, and providing power flow data for calculating the fixed cost of power transmission and distribution. The determining module 402 determines the transaction direction of the transaction to be computed in each branch of the power grid system, because the transaction direction may affect the computing method of the power transmission and distribution fixed cost that should be shared by the transaction to be computed, where the transaction direction includes a forward transaction and a reverse transaction. The calculation module 403 calculates the power transmission and distribution fixed cost expense to be shared by the transaction to be calculated by using a pre-established power transmission and distribution fixed cost sharing model according to the acquired load flow data and transaction direction of the transaction to be calculated in each branch of the power grid system. The power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity cost to be allocated, the spare capacity cost to be allocated and the obtained incentive subsidy cost, and the calculation mode of the power transmission and distribution fixed cost allocation model is influenced due to the fact that the transaction directions of the transaction to be calculated are different.
The embodiment of the system provided by the present invention may be specifically configured to execute the processing flows of the above method embodiments, and the functions of the system are not described herein again, and refer to the detailed description of the above method embodiments.
According to the embodiment of the invention, the transaction direction of the transaction to be calculated is judged, and the power transmission and distribution fixed cost sharing model is utilized to calculate the power transmission and distribution fixed cost to be shared by the transaction to be calculated, so that the complex transaction (particularly caused by participation of a micro-grid) in an open environment of an electric power market can share the power transmission and distribution fixed cost more fairly and reasonably.
On the basis of the above embodiment, fig. 5 is a schematic structural diagram of a power transmission and distribution fixed cost apportionment system according to another embodiment of the present invention, as shown in fig. 5, the system includes: a simplifying module 501, an obtaining module 502, a judging module 503 and a calculating module 504, wherein:
the simplifying module 501 is configured to obtain a topological structure of the power grid system, and simplify the topological structure.
Specifically, the obtaining module 502, the determining module 503 and the calculating module 504 are the same as the obtaining module 401, the determining module 402 and the calculating module 403 in the foregoing embodiment, and are not described herein again. Before calculating load flow data of all transactions in the whole power grid system, the calculation steps can be simplified by simplifying the topological structure of the power grid system through a simplifying module 501, and the specific simplifying method is as follows:
the loads or power supplies at the same node of the power grid system can share the fixed cost of power transmission and distribution which is respectively borne according to the proportion of the loads or power generation, so that the loads or power supplies at the same node can be combined and calculated uniformly, and the calculation steps are simplified.
According to the embodiment of the invention, the calculation of the load flow data of each transaction in the power grid system is simplified by simplifying the topological structure of the power grid system, the fixed power transmission and distribution cost to be calculated and to be shared in the transaction is calculated by utilizing the fixed power transmission and distribution cost sharing model according to the transaction direction by judging the transaction direction, the accuracy of the sharing of the fixed power transmission and distribution cost is improved, and the sharing of the fixed power transmission and distribution cost is more fair.
On the basis of the above embodiment, fig. 6 is a schematic structural diagram of a power transmission and distribution fixed cost apportionment system according to another embodiment of the present invention, as shown in fig. 6, the system includes: a simplifying module 601, an obtaining module 602, a model establishing module 603, a judging module 604 and a calculating module 605, wherein:
the model establishing module 603 is configured to establish the power transmission and distribution fixed cost apportionment model; wherein,
when the transaction to be calculated is a forward transaction, the fixed power transmission and distribution cost to be allocated to the transaction to be calculated is the sum of the basic capacity cost to be allocated to the transaction to be calculated and the spare capacity cost to be allocated to the transaction to be calculated;
and when the transaction to be calculated is a reverse transaction, the fixed power transmission and distribution cost to be allocated for the transaction to be calculated is the difference between the spare capacity cost to be allocated for the transaction to be calculated and the incentive subsidy cost obtained by the transaction to be calculated.
Specifically, the simplifying module 601, the obtaining module 602, the determining module 604, and the calculating module 605 are the same as the simplifying module 501, the obtaining module 502, the determining module 503, and the calculating module 504 in the foregoing embodiments, and are not described herein again. The model establishing module 603 establishes a power transmission and distribution fixed cost allocation model, and the specific establishing method is as follows:
when the transaction to be calculated is a forward transaction, the fixed power transmission and distribution cost to be allocated for the transaction to be calculated is the sum of the basic capacity cost to be allocated for the transaction to be calculated and the spare capacity cost to be allocated for the transaction to be calculated. When the transaction to be calculated is a reverse transaction, the transaction to be calculated contributes to the power transmission and distribution line of the main power grid, and a certain reward needs to be given to the transaction to be calculated at the moment, so that incentive subsidy cost is introduced, subsidy is carried out on the transaction to be calculated, and the fixed power transmission and distribution cost of the transaction to be calculated, which is to be allocated in the whole power grid system, is the difference between the spare capacity cost allocated to the transaction to be calculated and the incentive subsidy cost obtained by the transaction to be calculated.
According to the embodiment of the invention, the transaction directions of the transaction to be calculated are discussed in different situations, in addition, the incentive factors are introduced, the distribution of the fixed cost of power transmission and distribution can be reduced when the micro-grid relieves the pressure of the main power grid, and the distribution of the fixed cost of power transmission and distribution is increased when the pressure of the main power grid is intensified or the adverse disturbance to the power grid system is caused, so that the economic signal is used as an economic signal to guide the micro-grid to carry out power transaction in a proper time period.
Fig. 7 is a schematic structural diagram of a power transmission and distribution fixed cost apportionment system according to an embodiment of the present invention, and as shown in fig. 7, the system includes: a processor (processor)701, a memory (memory)702, and a bus 703; wherein,
the processor 701 and the memory 702 complete communication with each other through the bus 703;
the processor 701 is configured to call the program instructions in the memory 702 to execute the methods provided by the above-mentioned method embodiments, for example, including: obtaining load flow data corresponding to each branch of a power grid system for transaction to be calculated; judging the transaction direction of the transaction to be calculated in each branch, wherein the transaction direction comprises a forward transaction and a reverse transaction; and calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
The present embodiment discloses a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the method provided by the above-mentioned method embodiments, for example, comprising: obtaining load flow data corresponding to each branch of a power grid system for transaction to be calculated; judging the transaction direction of the transaction to be calculated in each branch, wherein the transaction direction comprises a forward transaction and a reverse transaction; and calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the above method embodiments, for example, including: obtaining load flow data corresponding to each branch of a power grid system for transaction to be calculated; judging the transaction direction of the transaction to be calculated in each branch, wherein the transaction direction comprises a forward transaction and a reverse transaction; and calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above-described embodiments of the system and the like are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A power transmission and distribution fixed cost allocation method considering microgrid complex transactions is characterized by comprising the following steps:
obtaining load flow data corresponding to each branch of a power grid system for transaction to be calculated;
judging the transaction direction of the transaction to be calculated in each branch, wherein the transaction direction comprises a forward transaction and a reverse transaction;
and calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
2. The method of claim 1, further comprising:
and acquiring the topological structure of the power grid system, and simplifying the topological structure.
3. The method of claim 1, further comprising:
establishing the power transmission and distribution fixed cost allocation model; wherein,
when the transaction to be calculated is a forward transaction, the fixed power transmission and distribution cost to be allocated to the transaction to be calculated is the sum of the basic capacity cost to be allocated to the transaction to be calculated and the spare capacity cost to be allocated to the transaction to be calculated;
and when the transaction to be calculated is a reverse transaction, the fixed power transmission and distribution cost to be allocated for the transaction to be calculated is the difference between the spare capacity cost to be allocated for the transaction to be calculated and the incentive subsidy cost obtained by the transaction to be calculated.
4. The method of claim 3, wherein the power transmission and distribution fixed cost amortization model is:
wherein TP (i) is the fixed cost expense of power transmission and distribution to be shared by the transaction i to be calculated, TPB(i) The basic volume charge, TP, to be apportioned for the transaction i to be calculatedR(i) The reserve capacity charge, TP, to be apportioned for the transaction i to be calculatedI(i) The incentive obtained for the transaction to be computed iAnd (5) subsidizing the expense.
5. Method according to claim 4, characterized in that the basic capacity cost TP that the transaction i to be calculated should be amortizedB(i) The calculation formula of (2) is as follows:
<mrow> <msub> <mi>TP</mi> <mi>B</mi> </msub> <mrow> <mo>(</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>=</mo> <munder> <mi>&amp;Sigma;</mi> <mi>k</mi> </munder> <msub> <mi>C</mi> <mrow> <mi>B</mi> <mi>K</mi> </mrow> </msub> <mfrac> <mrow> <mo>|</mo> <msub> <mi>f</mi> <mi>k</mi> </msub> <mrow> <mo>(</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>|</mo> </mrow> <mrow> <munder> <mi>&amp;Sigma;</mi> <mrow> <mi>s</mi> <mo>&amp;Element;</mo> <msub> <mi>&amp;Omega;</mi> <mrow> <mi>k</mi> <mo>+</mo> </mrow> </msub> </mrow> </munder> <mo>|</mo> <msub> <mi>f</mi> <mi>k</mi> </msub> <mrow> <mo>(</mo> <mi>s</mi> <mo>)</mo> </mrow> <mo>|</mo> </mrow> </mfrac> <mo>;</mo> </mrow>
wherein, CBKFor the basic capacity cost of the branch k in the power grid system, k is more than 0 and is an integer, fk(i) The flow data in the branch k for the transaction i to be calculated, fk(s) trading said tidal current data of s in said branch k, Ωk+A set of said transactions comprising said forward power flow in said branch k;
the spare capacity cost TP to be allocated to the transaction i to be calculatedR(i) The calculation formula of (2) is as follows:
<mrow> <msub> <mi>TP</mi> <mi>R</mi> </msub> <mrow> <mo>(</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>=</mo> <munder> <mi>&amp;Sigma;</mi> <mi>k</mi> </munder> <msub> <mi>C</mi> <mrow> <mi>R</mi> <mi>K</mi> </mrow> </msub> <mfrac> <mrow> <mo>|</mo> <msub> <mi>f</mi> <mi>k</mi> </msub> <mrow> <mo>(</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>|</mo> </mrow> <mrow> <munder> <mi>&amp;Sigma;</mi> <mrow> <mi>s</mi> <mo>&amp;Element;</mo> <msub> <mi>&amp;Omega;</mi> <mi>k</mi> </msub> </mrow> </munder> <mo>|</mo> <msub> <mi>f</mi> <mi>k</mi> </msub> <mrow> <mo>(</mo> <mi>s</mi> <mo>)</mo> </mrow> <mo>|</mo> </mrow> </mfrac> <mo>;</mo> </mrow>
wherein, CRKThe spare capacity cost, f, for the branch kk(i) The flow data in the branch k for the transaction i to be calculated, fk(s) is the trend data, Ω, of the transaction s in the branch kkThe branch k is a set of transactions containing all trends;
the incentive subsidy cost TP obtained by the transaction i to be calculatedI(i) The calculation formula of (2) is as follows:
TPI(i)＝μ·CE；
wherein μ is an incentive factor corresponding to the transaction i to be calculated, and a calculation formula of the incentive factor μ is as follows:
μ＝μT·μL；
wherein, muTA time interval exciting factor mu corresponding to the current transaction time interval of the transaction i to be calculatedLExciting factors for the geographic position corresponding to the transaction i to be calculated;
CEan energy subsidy amount CEThe calculation formula of (2) is as follows:
CE＝∑pjg(j)；
wherein p isjThe energy source coefficient corresponding to the energy source j, and pjAnd g (j) is the amount of electricity delivered by the energy source j.
6. A power transmission and distribution fixed cost amortization system, comprising:
the acquisition module is used for acquiring load flow data corresponding to the transaction to be calculated in each branch of the power grid system;
the judging module is used for judging the transaction direction of the transaction to be calculated in each branch, and the transaction direction comprises forward transaction and reverse transaction;
and the calculation module is used for calculating the power transmission and distribution fixed cost expense to be allocated to the transaction to be calculated by utilizing a power transmission and distribution fixed cost allocation model according to the trend data and the transaction direction, wherein the power transmission and distribution fixed cost allocation model is established according to the transaction direction of the transaction to be calculated, the basic capacity expense to be allocated, the spare capacity expense to be allocated and the obtained incentive subsidy expense.
7. The system of claim 6, further comprising:
and the simplifying module is used for acquiring the topological structure of the power grid system and simplifying the topological structure.
8. The system of claim 6, further comprising:
the model establishing module is used for establishing the power transmission and distribution fixed cost allocation model; wherein,
when the transaction to be calculated is a forward transaction, the fixed power transmission and distribution cost to be allocated to the transaction to be calculated is the sum of the basic capacity cost to be allocated to the transaction to be calculated and the spare capacity cost to be allocated to the transaction to be calculated;
and when the transaction to be calculated is a reverse transaction, the fixed power transmission and distribution cost to be allocated for the transaction to be calculated is the difference between the spare capacity cost to be allocated for the transaction to be calculated and the incentive subsidy cost obtained by the transaction to be calculated.
9. A power transmission and distribution fixed cost amortization system, comprising: a processor, a memory, and a bus, wherein,
the processor and the memory are communicated with each other through the bus;
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 5.
10. A non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the method of any one of claims 1 to 5.
CN201710296295.5A 2017-04-28 2017-04-28 Consider the power transmission and distribution transmission fixed cost allocation method and system of micro-capacitance sensor complex transaction Pending CN107123985A (en)

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Publication number Priority date Publication date Assignee Title
CN105186492A (en) * 2015-08-28 2015-12-23 南京邮电大学 Network loss allocation method based on power flow tracing method and electrical dissecting method
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