A kind of rate of load condensate electricity price measuring method based on number of users spatial distribution characteristic
Technical field
The present invention relates to a kind of rate of load condensate electricity price measuring method based on number of users spatial distribution characteristic.
Background technology
Rate of load condensate electricity price refer to consider customer charge property difference, to reflect cost as principle, using improve Pricing Efficiency as
Purpose and the electricity price formulated.Consider that part throttle characteristics has objective necessity in electrovalence policy.With rate of load condensate user because it is accounted for
With the difference with the Capacity Cost of consumption, it should perform different electricity prices.Although what public document was proposed at present is optional hold
Capable requirement, but from user and power grid enterprises' long-term interest, it is correct strategic choice to carry out rate of load condensate electricity price as early as possible.
The existing sales rate of electricity Main Basiss industry of China, purpose classification, have that class of subscriber is meticulous, and alternative subsidy is on the high side,
The problems such as Market Orientation is relatively low.It is according to parameters such as user power utilization capacity, electricity, rate of load condensates according to power load characteristic price
Difference, different optional electricity price schemes are formulated to the user of different needs for electricity, more targetedly to promote user reasonable
Electricity consumption, improves Operation of Electric Systems efficiency.Rate of load condensate price can guide user rationally to control to connect net transformer capacity, improve and use
Electric load rate, saves power grid construction investment, sets up fair and reasonable Price Mechanisms, policy safeguard is provided for company's long term growth.
National Development and Reform Committee issues within 2013《Notice on adjusting sales rate of electricity taxonomic structure relevant issues》(hair changes valency
(2013) No. 973), propose sales rate of electricity by existing Main Basiss industry, purpose classification, be progressively adjusted to special with power load
Property is Main classification, progressively sets up that clear in structure, the rate of exchange are reasonable, complicated and simple appropriate sales rate of electricity taxonomic structure system.According to the above
It is required that, Guo Wang Finance Department issue《Notice on carrying out rate of load condensate price measuring and calculating relevant issues》(wealth valency (2013) 141),
Require according to parameter differences such as user capacity, electricity, rate of load condensates, different may be selected is specified to the user of different needs for electricity
Scheme.System introduction carries out the theoretical foundation of rate of load condensate price in file, it is proposed that rate of load condensate is fixed a price measured data demand, together
Shi Yaoqiu constituent parts ensure that measured data demand is fulfilled.But this method is sharing the total capacity cost of big industrial user
When, from unit capacity cost angle, do not account for different load characteristic user quantity space point under same voltage class
Cloth feature, and Capacity Cost ultimately results in rate of load condensate electricity price the problem of different load rate type of user has repetitive allocation
It is unreasonable, it is therefore desirable to original method is improved.
The content of the invention
It is an object of the invention to provide a kind of rate of load condensate electricity price measuring method based on number of users spatial distribution characteristic,
Can effectively solve the problem that cannot calculate the problem of big industrial user's rate of load condensate electricity price of each voltage class is at present.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions:One kind is based on number of users
The rate of load condensate electricity price measuring method of spatial distribution characteristic, comprises the following steps:
Step one:Gather logging data;
Step 2:Determine the classification of customer charge rate and characteristic standard value;
Step 3:Calculate the total capacity cost of big industrial user;
Step 4:Total capacity cost sharing in different voltage class different load rate users of big industrial user;
Step 5:Calculate the unit quantity of electricity cost of the big industrial user of each voltage class;
Step 6:Calculate big industrial user's rate of load condensate electricity price.
It is preferred that, step one is specially:
(1) sample census scope
The user scope for carrying out rate of load condensate electricity price is that the general industry and commerce of the big commercial power and 110kV of each voltage class is used
Family;
(2) gathered data
In all types of user for carrying out rate of load condensate electricity price, n typical user is extracted respectively, and the year for counting each user is used
Electricity and year peak load, the maximum peak load of sub-category user can temporarily be replaced by network capacity amount is connect.
It is preferred that, step one is specially:
(1) sample census scope
The user scope for carrying out rate of load condensate electricity price is that the general industry and commerce of the big commercial power and 110kV of each voltage class is used
Family;
(2) gathered data
In all types of user for carrying out rate of load condensate electricity price, n typical user is extracted respectively, and the year for counting each user is used
Electricity and year peak load, the maximum peak load of sub-category user can temporarily be replaced by network capacity amount is connect.
It is preferred that, step 2 is specially:
(1) user's yearly load factor is calculated
In formula, LFiFor yearly load factor, QiFor year power consumption, Lm,iFor year peak load;
Clustering is carried out respectively by voltage class to the yearly load factor obtained by calculating;
(2) characteristic standard is determined
Frequency statistics are carried out to the yearly load factor of sample of users, using frequency proportion as weight, calculated high, normal, basic negative
The weighted average of lotus rate is used as characteristic value.
It is preferred that, step 3 is specially:
Power transmission and distribution cost includes the projects such as fee of material, wage, welfare fund, depreciation cost, price for repairing and other fees, all with electricity
Amount is not directly dependent upon, therefore can be using its all as overall system capacity cost, i.e., the annual sales revenue of big industrial user subtracts
The year purchases strategies that power network is big industrial user are removed, specific formula for calculation is:
In formula, FCAFor the total capacity cost of big industrial user;QlFor the year power consumption of big industrial user;psFor annual pin
Sale of electricity valency;QsFor year power network sale of electricity total amount;QpFor year power network power purchase total amount, ppFor annual rate for incorporation into the power network.
It is preferred that, step 4 is specially:
(1) total capacity cost sharing between each voltage class of big industrial user
Amortization ratio is the ratio that each voltage class original value of fixed assets accounts for each voltage class original value of fixed assets sum;
, it is necessary to which power transformation assets are included in into main receiving voltage grade when calculating each voltage class fixed assets, it is mainly because becoming electrical equipment
Serviced for next low-voltage-grade, so the total capacity of corresponding proportion by the user of receiving voltage grade into should be undertaken;
Simultaneously as low-voltage-grade user is except the electricity directly surfed the Net using this grade, in addition it is also necessary to use and passed through by voltage levels
Decompression supplies electricity to the electricity of this voltage class, therefore the user of low-voltage-grade needs to undertake the one of voltage levels Capacity Cost
The Capacity Cost of part, i.e. voltage levels will be transferred to low-voltage-grade according to corresponding ratio, and adjustment ratio is each voltage
The ratio that grade is powered to low-voltage-grade, then the total capacity cost of the big industrial user of each voltage class be respectively:
1. the total capacity cost of the big industrial user of 500kV voltage class:
2. the total capacity cost of the big industrial user of 220kV voltage class:
3. the total capacity cost of the big industrial user of 110kV voltage class:
4. the total capacity cost of the big industrial user of 35kV voltage class:
5. the total capacity cost of the big industrial user of 10kV voltage class:
In formula, AgdyzFor original value of fixed assets;Agdyz,bdFor the original value of fixed assets of power transformation;K is voltage levels to low electricity
The ratio that pressure grade is powered;
(2) the total capacity cost of the big industrial user of each voltage class is in the different load rate user capacity electricity charge and the electricity electricity charge
Between share:
1. yearly load factor-simultaneity factor curve is drawn
Yearly load factor-year simultaneity factor curve is the foundation that Capacity Cost is shared between electrical capacity charge and the electricity electricity charge, is born
Lotus rate electricity price is that component voltage grade is formulated, therefore, and yearly load factor-year simultaneity factor curve also should be by different voltage class point
Do not draw;The year power consumption and year peak load of each voltage class is counted, then the yearly load factor of each voltage class and year simultaneity factor difference
For:
In formula, CFiFor year simultaneity factor, ∑ Lm,i,nFor the peak load sum of all users of i voltage class;
According to rate of load condensate and the relational expression of simultaneity factor:The year for substituting into each voltage class obtained by calculating is born
Lotus rate and year simultaneity factor, calculate parameter alpha;According to the parameter value calculated using yearly load factor as abscissa, using year simultaneity factor as vertical seat
Mark, draws the yearly load factor of each voltage class-year simultaneity factor curve;
2. i voltage class j type load characteristic amortization ratios are calculated
The total number of users of j type load characteristics in i voltage class investigation user is counted, j type load characteristic user accountings are calculated
ki,j;
Calculate the intercept of each voltage class yearly load factor-year simultaneity factor each point tangent line:
Electrical capacity charge amortization ratio:
Electricity electricity charge amortization ratio:
It is preferred that, step 5 is specially:
According to the line loss per unit of each voltage class and become loss rate, average rate for incorporation into the power network by each voltage class circuit line loss and
After the loss on transmission of transformer, the unit quantity of electricity cost of the big industrial user of each voltage class can be higher than average rate for incorporation into the power network, then respectively
The unit quantity of electricity cost of voltage class is:
In formula, UFQ,iFor i voltage class unit quantity of electricity costs;ppFor average rate for incorporation into the power network;Qp,iBought for i voltage class
Electricity;Qxb,iFor the electricity after i voltage class line loss and loss on transmission.
It is preferred that, step 6 is specially:
(1) capacity price of electricity
The capacity price of electricity of the big industrial user of i voltage class j rate of load condensates is:
(2) electricity price
The electricity price of the big industrial user of i voltage class j rate of load condensates is:
In formula, CAi,jFor the total capacity of the big industrial user of i voltage class j rate of load condensates.
Compared with prior art, it is an advantage of the invention that:
(1) change the method in unit capacity cost sharing to electrical capacity charge and the electricity electricity charge in the past, directly to each electricity
The total capacity cost of pressure grade is shared.
(2) for Capacity Cost exist between different load rate type of user repetitive allocation or all share ask
Topic, the proportion for accounting for all users using number of users under different load characteristic is adjusted as weight to Split Factor, and synthesis is examined
The parameter differences such as user power utilization capacity, electricity, rate of load condensate, number of users spatial distribution characteristic are considered, to formulate fair and reasonable bear
Lotus rate Price Mechanisms provide foundation.
Brief description of the drawings
Fig. 1 is the rate of load condensate electricity price measuring method flow chart of the present invention based on number of users spatial distribution characteristic;
Fig. 2 is yearly load factor of the present invention-year simultaneity factor curve map.
Embodiment
It is a kind of implementation of the rate of load condensate electricity price measuring method based on number of users spatial distribution characteristic of the present invention refering to Fig. 1
Example, comprises the following steps:
Step one:Sample census scope is determined, user is extracted, logging data is gathered;
(1) sample census scope
The user scope for carrying out rate of load condensate electricity price is that the general industry and commerce of the big commercial power and 110kV of each voltage class is used
Family.
(2) gathered data
In all types of user for carrying out rate of load condensate electricity price, n typical user is extracted respectively, and the year for counting each user is used
Electricity and year peak load, the maximum peak load of sub-category user can temporarily be replaced by network capacity amount is connect.
Step 2:Determine the classification of customer charge rate and characteristic standard value;
(1) user's yearly load factor is calculated
In formula, LFiFor yearly load factor, QiFor year power consumption, Lm,iFor year peak load.
To the yearly load factor obtained by calculating, by voltage class, the special clustering software of application carries out clustering respectively, according to
The result of software processing is as shown in the table:
Sample of users yearly load factor cluster result table
(2) characteristic standard is determined
Frequency statistics are carried out to the yearly load factor of sample of users.Using frequency proportion as weight, calculate high, normal, basic negative
The weighted average of lotus rate is as characteristic value, for example, middle rate of load condensate is 0.2~0.4 (setting step-length to be 0.1), then middle load is used
The characteristic value at family is:
In formula, αjFor rate of load condensate characteristic value.
Step 3:Calculate the total capacity cost of big industrial user;
In formula, FCAFor the total capacity cost of big industrial user;QlFor the year power consumption of big industrial user;psFor annual pin
Sale of electricity valency;QsFor year power network sale of electricity total amount;QpFor year power network power purchase total amount, ppFor annual rate for incorporation into the power network.
Step 4:Total capacity cost sharing in different voltage class different load rate users of big industrial user;
(1) total capacity cost sharing between each voltage class of big industrial user
1. the total capacity cost of the big industrial user of 500kV voltage class:
2. the total capacity cost of the big industrial user of 220kV voltage class:
3. the total capacity cost of the big industrial user of 110kV voltage class:
4. the total capacity cost of the big industrial user of 35kV voltage class:
5. the total capacity cost of the big industrial user of 10kV voltage class:
In formula, AgdyzFor original value of fixed assets;Agdyz,bdFor the original value of fixed assets of power transformation;K is voltage levels to low electricity
The ratio that pressure grade is powered.
(2) the total capacity cost of the big industrial user of each voltage class is in the different load rate user capacity electricity charge and the electricity electricity charge
Between share
1. yearly load factor-simultaneity factor curve is drawn
The year power consumption and year peak load of each voltage class is counted, then the yearly load factor of each voltage class and year simultaneity factor difference
For:
In formula, CFiFor year simultaneity factor, Σ Lm,i,nFor the peak load sum of all users of i voltage class.
According to rate of load condensate and the relational expression of simultaneity factor:The year for substituting into each voltage class obtained by calculating is born
Lotus rate and year simultaneity factor, calculate parameter alpha.According to the parameter value calculated using yearly load factor as abscissa, using year simultaneity factor as vertical seat
Mark, draws the yearly load factor of each voltage class-year simultaneity factor curve, as shown in Figure 2.
2. i voltage class j type load characteristic amortization ratios are calculated
The total number of users of j type load characteristics in i voltage class investigation user is counted, j type load characteristic user accountings are calculated
ki,j。
Calculate the intercept of each voltage class yearly load factor-year simultaneity factor each point tangent line:
Electrical capacity charge amortization ratio:
Electricity electricity charge amortization ratio:
Step 5:Calculate the unit quantity of electricity cost of the big industrial user of each voltage class;
The unit quantity of electricity cost of each voltage class is:
In formula, UFQ,iFor i voltage class unit quantity of electricity costs;ppFor average rate for incorporation into the power network;Qp,iBought for i voltage class
Electricity;Qxb,iFor the electricity after i voltage class line loss and loss on transmission.
Step 6:Calculate big industrial user's rate of load condensate electricity price.
(1) capacity price of electricity
The capacity price of electricity of the big industrial user of i voltage class j rate of load condensates is:
(2) electricity price
The electricity price of the big industrial user of i voltage class j rate of load condensates is:
In formula, CAi,jFor the total capacity of the big industrial user of i voltage class j rate of load condensates.
The present invention is further illustrated below in conjunction with application example.
Exemplified by calculating 10kV voltage class rate of load condensate electricity prices.
400 family 10kV voltage class large users are extracted, network capacity amount are connect for 0.28 hundred million kilovolt-amperes, then year peak load is 0.28 hundred million thousand
Watt (by the replacement of network capacity amount is connect), collects the year power consumption and year peak load of a user, counts the annual consumption of each user, collect and obtain year
Power consumption is 85,000,000,000 kilowatt hours, and the year peak load sum of all users is 0.48 hundred million kilowatts.The total capacity cost of big industrial user is
62800000000 yuan, each voltage class original value of fixed assets sum is 86,000,000,000 yuan.
The yearly load factor of all users is calculated, clustering post processing result is as shown in table 1.
The sample of users yearly load factor cluster result table of table 1
Then the characteristic value of the basic, normal, high three type loads characteristic of 10kV voltage class is respectively:0.15,0.29,0.62.
Calculating big industrial user's total capacity cost, it is as shown in the table in the relevant parameter that 10kV voltage class is shared,
The original value of fixed assets of table 2 and power supply scale parameter table
It can be calculated according to formula (8) and share the total capacity cost of 10kV voltage class for 266.2 hundred million yuan.According to public affairs
Formula (9) and formula (10) obtain 10kV voltage class users yearly load factor be 0.294, year simultaneity factor be 0.583, year load
The relation of rate-year simultaneity factor is:The result of calculation of simultaneity factor and tangent intercept under different load characteristic
As shown in table 3.(wherein, subscript 1 represents underload rate, rate of load condensate in 2 expressions, 3 expression High Load Rates)
The simultaneity factor of table 3 and tangent intercept result of calculation table
From statistical result:k1=0.325, k2=0.5, k3=0.175, calculate electrical capacity charge, the electricity electricity charge and share
Ratio, as a result as shown in table 4.
The electrical capacity charge of table 4, electricity electricity charge amortization ratio
If average rate for incorporation into the power network is that the electricity after 0.5 yuan/kilowatt hour, 10kV voltage class line loss and loss on transmission is 79,800,000,000 thousand
Watt-hour, then 10kV voltage class unit quantity of electricity cost is 0.54 yuan/kilowatt hour, is calculated and is pressed by the present invention《On carrying out load
The notice of rate price measuring and calculating relevant issues》Calculating obtained rate of load condensate electricity price is respectively:
It can be seen that from above-mentioned result of calculation and calculate rate of load condensate electricity price according to the method in file, Capacity Cost is in capacity
Sharing in the electricity charge, result was substantially unreasonable, and the capacity price of electricity of High Load Rate user is higher, did not embody the justice of Price Mechanisms
Property.
The specific embodiment of the present invention is the foregoing is only, but the technical characteristic of the present invention is not limited thereto, Ren Heben
The technical staff in field is in the field of the invention, and the change or modification made all are covered among the scope of the claims of the present invention.