CN108960494A - It is a kind of by voltage class and the prediction technique of class of subscriber T-D tariff - Google Patents
It is a kind of by voltage class and the prediction technique of class of subscriber T-D tariff Download PDFInfo
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Abstract
The present invention relates to technical field of power grid management, in particular to a kind of prediction technique of T-D tariff.It is a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, it is the following steps are included: A. calculates the transfer cost of power transmission and distribution cost sharing to each voltage class；B. the power transmission and distribution totle drilling cost that each voltage class undertakes is calculated；C. the totle drilling cost that all users undertake in each voltage class is calculated；D. the totle drilling cost that all users undertake is shared to all types of user；E. the final T-D tariff of all types of user is determined.The cost that each voltage class power transmission and distribution occur is conducted to the adjacent low-voltage-grade of physics with flow of power by the method that voltage class is conducted step by step by the present invention, and the cost that higher level is transmitted to the same level is passed down again together with the same level incurred cost, until minimum voltage grade, this method strictly reflects the electric power transitive relation between power grid, physical significance is relatively sharp rationally, can preferably embody equal shouldering of burden sharing.
Description
Technical field
The present invention relates to technical field of power grid management, in particular to a kind of prediction technique of T-D tariff.
Background technique
Before electricity market reform, China's T-D tariff is mainly reflected in purchase and marketing price differentials, without independent T-D tariff
Form.And after new electricity changes, T-D tariff has clearly been appraised and decided by " cost adds benefit " mode and has carried out independent price by China, power transmission and distribution
Valence by component voltage grade, divide class of subscriber to determine, and share and undertake user side electricity price alternative subsidy.China's power grid is physically divided into
500 kilovolts (330 kilovolts) or more, 220 kilovolts, 110 kilovolts (66 kilovolts), 35 kilovolts, 10 kilovolts (20 kilovolts) and discontented 1,000
6 voltage class such as volt；The classification of power consumer is segmented into big industrial user, general industry and commerce and other users, agricultural is used
Family and resident.
Currently, all standing in provincial power network (in addition to Tibet) has been realized in T-D tariff reform, " price, thing in advance are established
The independent T-D tariff mechanism and closed loop supervisory system of middle supervision, subsequent supervision and examination ".Then, required provincial in price method
Power grid community network T-D tariff is distinguished to formulate according to class of subscriber, voltage class lacks specific executive mode, first is that at present
Power transmission and distribution cost directly can not be calculated and be collected according to voltage class, second is that existing Cost Accounting System be unable to satisfy it is more
Requirement dimension cost information supervision and disclosed.Current power grid cost accumulation situation is still far from satisfying price and supervision
It needs, component voltage grade divides class of subscriber cost unintelligible, directly affects the formulation of corresponding T-D tariff, alternative subsidy
It solves, also affects electricity market fair deal, increment power distribution network electricity pricing.
Summary of the invention
The purpose of the present invention is: for the load character for reflecting different classes of user, take into account market justice and resource optimization
Double goal is configured, is provided a kind of by voltage class and the prediction technique of class of subscriber T-D tariff.
The technical scheme is that a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, it includes
Following steps:
A. the transfer cost of power transmission and distribution cost sharing to each voltage class is calculated；
B. the power transmission and distribution totle drilling cost that each voltage class undertakes is calculated；
C. the totle drilling cost that all users undertake in each voltage class is calculated；
D. the totle drilling cost that all users undertake is shared to all types of user；
E. the final T-D tariff of all types of user is determined.
Specific: in the step A: step-by-step calculation is shared to each voltage class power grid since highest voltage level power grid
Transfer cost, the transfer cost C of every grade of power gridJ- conductionSuperior voltage etc. is accounted for by power consumption from superior voltage level Grid by the same level
The ratio-dependent of the total conveying electricity of grade；When multiple voltage class power grids are to certain grade of power grid power transmission simultaneously, the power transmission and distribution of conduction at
This needs is cumulative；
Wherein: CiFor the totle drilling cost of the power transmission and distribution service of superior voltage level Grid, QijIndicate superior voltage level Grid
The electricity conveyed to the same level power grid, QiIndicate total conveying electricity of superior voltage level Grid；QiFor the same level power grid electricity sales amount with
To the sum of total conveying electricity of junior's power grid, the electricity sales amount of every grade of power grid calculates single true this grade of power grid according to annual electricity recently
It is fixed；QijMode is irreversibly delivered to subordinate voltage level Grid by superior voltage level Grid, is calculated and is determined by electric quantity balancing.
In the step B: power transmission and distribution totle drilling cost CJ- is totalCalculation method are as follows:
CJ- is total=CJ- conduction+Cj
Wherein: CjThe totle drilling cost of power transmission and distribution service is carried out for this voltage class.
In the step C: accounting for the same level according to user in each voltage class power grid and always convey the specific gravity of electricity and determine the same level
The power transmission and distribution cost C that user undertakesJ- user；
Wherein: QJ- is soldFor the electricity sales amount of the voltage class power grid, QJ- conveyingIt is the voltage class power grid to all junior's power grids
The sum of total conveying electricity.
In the step D, it is first determined the amortization ratio R of all types of userj:
Wherein: j indicates some voltage class user type, QjFor j class user's peak load moon electricity, LjIndicate j class user simultaneously
Peak load, L 'jIndicate the non-concurrent peak load of j class user；αj、βj、γjFor the Split Factor of j class user；
Then the cost C of all types of user undertaken is determinedj-j:
Cj-j=CJ- user×Rj。
In the step E: the final T-D tariff D of all types of userj:
Wherein: QJ- electricity consumptionFor the electricity consumption of j class user.
Further, the Split Factor of j class user is determined by below table:
The utility model has the advantages that this method considers the physical pathway of grid power conduction, functional characteristic, each voltage of all kinds of costs etc.
Grade transport properties, all types of user part throttle characteristics, calculate the power transmission and distribution of each voltage class, each class of subscriber on this basis
Valence.
(1) cost that each voltage class power transmission and distribution are occurred by the method that voltage class is conducted step by step by the present invention is with flow of power
It is conducted to the adjacent low-voltage-grade of physics, and higher level is transmitted to the cost of the same level together with the same level incurred cost again down
It passes, until minimum voltage grade, this method strictly reflect the electric power transitive relation between power grid, the relatively sharp conjunction of physical significance
Reason, can preferably embody equal shouldering of burden sharing.
(2) present invention can instruct power grid enterprises by cost Cost Allocation to voltage class and all types of user, establish for price
Fixed basis, effectively solves the problems, such as alternative subsidy, and is simultaneously that the Ministry of Finance, Bureau of Energy's formulation " power grid cost-accounting system " provide
Practical basis.
(3) present invention pushes power grid enterprises rationally to determine component voltage grade functionalization cost, carries out the physics such as user personality
Data actual measurement, from the data basis of cost grounds and physical layer compacting price.Conveniently in the next supervision phase, component voltage etc. is established
The power transmission and distribution Cost Driver of grade shares mechanism, appraises and decides and announces provincial power network component voltage grade T-D tariff level.
Detailed description of the invention
Fig. 1 is step flow chart of the invention.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Referring to attached drawing 1: it is a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, it the following steps are included:
A. the transfer cost of power transmission and distribution cost sharing to each voltage class is calculated；
Step-by-step calculation is shared to the transfer cost of each voltage class power grid, every grade of power grid since highest voltage level power grid
Transfer cost CJ- conductionThe ratio that superior voltage grade always conveys electricity is accounted for by power consumption from superior voltage level Grid in the same level
It determines；When multiple voltage class power grids are to certain grade of power grid power transmission simultaneously, the power transmission and distribution cost of conduction needs cumulative；
Wherein: CiFor the totle drilling cost of the power transmission and distribution service of superior voltage level Grid, QijIndicate superior voltage level Grid
The electricity conveyed to the same level power grid, QiIndicate total conveying electricity of superior voltage level Grid；
CiIncluding depreciation cost, fee of material, price for repairing, workers' pay, other fees, income, tax, differently return
Collection obtains；Wherein, depreciation cost, fee of material, price for repairing, income press initial asset value or net value pro rata distribution to each voltage class；Duty
Different personnel's classifications are then pressed in salary reward, are chosen different related foundations and are shared, including in each voltage class number of users ratio and electricity
Value and each voltage class assets pro rata distribution after amount ratio average weighted；Other fees then press different detail classifications, choose
It is different related according to sharing, for related foundation also indefinite cost then in the ratio for the other fees shared point
Booth；Tax adds the pro rata distribution of the sum of benefit according to each voltage class cost, cost after sharing aggregation you can get it the electricity
Press the totle drilling cost of the power transmission and distribution service of grade；
QiFor the same level power grid electricity sales amount and this grade of power grid to the sum of total conveying electricity of junior's power grid, every grade of power grid is sold
Electricity calculates single determine according to annual electricity recently；
QijMode is irreversibly delivered to subordinate voltage level Grid by superior voltage level Grid, is calculated by electric quantity balancing true
It is fixed；Electric quantity balancing calculates, and each voltage class route and the power transformation proportion of goods damageds, each voltage class purchase of electricity based on production statistics and sells
Electricity, each voltage class realize purchase, electricity sales amount balance to next voltage class power supply relationship by adjusting partial pressure line loss per unit；Its
In, each voltage class respectively holds meter electricity to determine to next voltage class power supply relationship according to transformer.
B. the power transmission and distribution totle drilling cost that each voltage class undertakes is calculated；
The power transmission and distribution totle drilling cost that each voltage class power grid undertakes is made of two parts: first is that this voltage class power grid undertook
Power transmission and distribution cost；Second is that higher level's power grid is conducted to the power transmission and distribution cost of this voltage class；Power transmission and distribution totle drilling cost CJ- is totalCalculation method
Are as follows:
CJ- is total=CJ- conduction+Cj
Wherein: CjThe totle drilling cost that power transmission and distribution service is carried out for this voltage class, with CiCalculation method is identical；
Each voltage class conducting path is as follows:
1. 500kV is connected directly by transformer with 220 kilovolts, and the same level does not have power consumer, therefore its cost is complete
It conducts to 220 kilovolts in portion；
2. it includes 110 kilovolts, 35 kilovolts, 10,000 that 220 kilovolts, which are connected directly the voltage class to transmit electric power by transformer,
Volt, therefore, cost, the 220 kilovolt cost that in itself collects the sum of of 500 kilovolts of conduction to 220 kilovolts, together by centainly share because
Son distributes to 220 kilovolts of power consumer and 110 kilovolts, 35 kilovolts, 10 kilovoltage grades of lower company；
3. for 110 kilovolts, 220 kilovolts conduction to 110 kilovolts cost plus 110 kilovolts collect in itself at
This, distributes to 110 kilovolts of power consumer and 35 kilovolts, 10 kilovoltage grades of lower company by centainly sharing the factor together；
4. for 35 kilovolts, 220 kilovolts, the costs of 110 kilovolts of conduction to 35 kilovolts collects in itself plus 35 kilovolts
Cost, distribute to 35 kilovolts of power consumer and 10 kilovoltage grades of lower company by centainly sharing the factor together；
5. 220 kilovolts, 110 kilovolts, 35 kilovolts conduct to 10 kilovolts of cost plus 10 kilovolts of sheets for 10 kilovolts
The cost that body collects distributes to 10 kilovolts of power consumer and discontented 1 kilovoltage of lower company etc. by centainly sharing the factor together
Grade；
6. the cost that discontented 1 kilovoltage class user undertakes then includes that the cost of 10 kilovolts of conduction and the same level collect
Cost.
C. the totle drilling cost that all users undertake in each voltage class is calculated；
The same level is accounted for according to user in each voltage class power grid always convey the specific gravity of electricity determine that the same level user undertakes defeated
Distribution cost CJ- user；
Wherein: QJ- is soldFor the electricity sales amount of the voltage class power grid, QJ- conveyingIt is the voltage class power grid to all junior's power grids
The sum of total conveying electricity.
D. the totle drilling cost that all users undertake is shared to all types of user；
The amortization ratio R of all types of user is determined firstj:
Wherein: j indicates some voltage class user type, QjFor j class user's peak load moon electricity, LjIndicate j class user simultaneously
Peak load, L 'jIndicate the non-concurrent peak load of j class user；αj、βj、γjFor the Split Factor of j class user；The Split Factor of j class user is examined
Consider pricing objective, is determined using the methods of expert graded；
The Split Factor that each voltage class power transmission and distribution cost is transmitted to all types of user is as shown in the table:
E. the final T-D tariff of all types of user is determined；
The final T-D tariff D of all types of userj:
Wherein: QJ- electricity consumptionFor the electricity consumption of j class user.
To sum up, the above is merely preferred embodiments of the present invention, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (7)
1. a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, which is characterized in that it the following steps are included:
A. the transfer cost of power transmission and distribution cost sharing to each voltage class is calculated；
B. the power transmission and distribution totle drilling cost that each voltage class undertakes is calculated；
C. the totle drilling cost that all users undertake in each voltage class is calculated；
D. the totle drilling cost that all users undertake is shared to all types of user；
E. the final T-D tariff of all types of user is determined.
2. as described in claim 1 a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, which is characterized in that
In the step A: step-by-step calculation is shared to the transfer cost of each voltage class power grid since highest voltage level power grid, and every grade
The transfer cost C of power gridJ- conductionSuperior voltage grade, which is accounted for, by power consumption from superior voltage level Grid by the same level always conveys electricity
Ratio-dependent；When multiple voltage class power grids are to certain grade of power grid power transmission simultaneously, the power transmission and distribution cost of conduction needs cumulative；
Wherein: CiFor the totle drilling cost of the power transmission and distribution service of superior voltage level Grid, QijIndicate superior voltage level Grid to originally
The electricity of grade power grid conveying, QiIndicate total conveying electricity of superior voltage level Grid；QiFor the electricity sales amount and the grade of the same level power grid
Power grid is to the sum of total conveying electricity of junior's power grid, and annual electricity calculating is single determining recently for the electricity sales amount foundation of every grade of power grid；Qij
Mode is irreversibly delivered to subordinate voltage level Grid by superior voltage level Grid, is calculated and is determined by electric quantity balancing.
3. as claimed in claim 2 a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, which is characterized in that
In the step B: power transmission and distribution totle drilling cost CJ- is totalCalculation method are as follows:
CJ- is total=CJ- conduction+Cj
Wherein: CjThe totle drilling cost of power transmission and distribution service is carried out for this voltage class.
4. as claimed in claim 3 a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, which is characterized in that
In the step C: accounting for the same level according to user in each voltage class power grid and always convey the specific gravity of electricity and determine that the same level user undertakes
Power transmission and distribution cost CJ- user；
Wherein: QJ- is soldFor the electricity sales amount of the voltage class power grid, QJ- conveyingIt is the voltage class power grid to the total defeated of all junior's power grids
The sum of power transmission amount.
5. as claimed in claim 4 a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, which is characterized in that
In the step D, it is first determined the amortization ratio R of all types of userj:
Wherein: j indicates some voltage class user type, QjFor j class user's peak load moon electricity, LjIndicate j class user peak simultaneously
Lotus, L 'jIndicate the non-concurrent peak load of j class user；αj、βj、γjFor the Split Factor of j class user；
Then the cost C of all types of user undertaken is determinedj-j:
Cj-j=CJ- user×Rj。
6. as claimed in claim 5 a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, which is characterized in that
In the step E: the final T-D tariff D of all types of userj:
Wherein: QJ- electricity consumptionFor the electricity consumption of j class user.
7. as claimed in claim 5 a kind of by voltage class and the prediction technique of class of subscriber T-D tariff, which is characterized in that
The Split Factor of j class user is determined by below table:
。
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Application publication date: 20181207 |