CN110782295A - Residential electricity consumption cost pricing method considering residential space load density difference - Google Patents

Residential electricity consumption cost pricing method considering residential space load density difference Download PDF

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CN110782295A
CN110782295A CN201911076163.7A CN201911076163A CN110782295A CN 110782295 A CN110782295 A CN 110782295A CN 201911076163 A CN201911076163 A CN 201911076163A CN 110782295 A CN110782295 A CN 110782295A
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文明
陈勇
黄增鑫
廖菁
潘馨
安莉莉
胡福
李文英
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State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Economic and Technological Research Institute of State Grid Hunan Electric Power Co Ltd
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State Grid Hunan Electric Power Co Ltd
Economic and Technological Research Institute of State Grid Hunan Electric Power Co Ltd
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Abstract

The invention discloses a resident electricity consumption cost pricing method considering residential space load density difference, which comprises the steps of obtaining the total annual cost of power transmission and distribution of a target province and distributing to obtain the power transmission and distribution cost of each voltage grade; obtaining the power transmission and distribution cost of each voltage class after redistribution; obtaining the power transmission and distribution cost of various users under various voltage levels; acquiring the total power transmission and distribution cost of the resident users; obtaining the total power transmission and distribution cost of resident users in the region with the load density; obtaining the total power transmission and distribution cost of residential users of each residential district in the load density divided area; and calculating to obtain the electricity price of each residential district. The total annual cost of power transmission and distribution is shared according to factors such as the power grid level, the space density of the user residence, the voltage level and the like, so that the final electricity consumption cost of residents is calculated; therefore, the method can calculate the electricity consumption cost of residents more scientifically, reasonably and accurately, and has good applicability and easy implementation.

Description

Residential electricity consumption cost pricing method considering residential space load density difference
Technical Field
The invention belongs to the field of electric power markets, and particularly relates to a residential electricity consumption cost pricing method considering residential space load density difference.
Background
With the development of economic technology and the improvement of living standard of people, electric energy becomes essential secondary energy in production and life of people, and brings endless convenience to production and life of people.
From the evolution of the electricity price system, the electricity price is taken as the basic industry price, and the establishment and the adjustment of the electricity price are easily influenced by the national policy and the economic development. As for the basic method of electricity price planning, a cost method and a marginal cost method are common at present. Compared with an accounting cost pricing method, the marginal cost pricing method can enable power consumers to reasonably bear power supply cost, meanwhile, the power consumers are reminded of reasonable power utilization, and the best economic benefit is easier to obtain.
However, the current electricity price making method is still in the original stage, and cannot completely and scientifically, reasonably and transparently reflect the real value of the electric energy.
Disclosure of Invention
The invention aims to provide a method for pricing electricity consumption cost of residents by scientifically, reasonably and accurately considering difference of space load density of residents.
The resident electricity consumption cost pricing method considering the difference of the residential space load density provided by the invention comprises the following steps:
s1, acquiring the annual cost sum of power transmission and distribution of a target province, and allocating the annual cost sum to each voltage class by taking electric quantity as an allocation factor to obtain the power transmission and distribution cost of each voltage class;
s2, conducting the power transmission and distribution cost of each voltage grade obtained in the step S1 to a physically adjacent low voltage grade step by step along with the power flow by taking the transformer capacity as an apportionment factor, summing the cost conducted from a higher level to the current level and the cost generated by the current level, and then conducting the sum downwards until reaching the lowest voltage grade, thereby obtaining the power transmission and distribution cost of each voltage grade after redistribution;
s3, conducting the power transmission and distribution cost of each voltage grade obtained in the step S2 after redistribution to various users under each voltage grade by taking the electric quantity as a sharing factor, so as to obtain the power transmission and distribution cost of various users under each voltage grade;
s4, summing the power transmission and distribution costs obtained in the steps S1-S3 to obtain the total power transmission and distribution cost of the resident users;
s5, classifying the residential areas according to the residential space load density, and distributing the total power transmission and distribution cost of the residential users obtained in the step S4 to each load density area according to the transformer capacity proportion, so that the total power transmission and distribution cost of the residential users in the load density area is obtained;
s6, distributing the total power transmission and distribution cost of the residential users in the load density divided area obtained in the step S5 to each residential district in proportion to the transformer capacity, so as to obtain the total power transmission and distribution cost of the residential users in each residential district in the load density divided area;
and S7, calculating the electricity price of each residential district according to the total power transmission and distribution cost of the residential users of each residential district in the fractional load density area obtained in the step S6.
The step S1 of obtaining the total annual cost of power transmission and distribution of the target province is specifically obtaining the total annual cost of power transmission and distribution of the target province in the national energy agency supervision notice.
Step S1, the total annual cost is allocated to each voltage class by using the electric quantity as an allocation factor to obtain the power transmission and distribution cost of each voltage class, specifically, the power transmission and distribution cost of each voltage class is calculated by using the following formula:
Figure BDA0002262514160000031
in the formula C iCost for voltage class i, C General assemblyAnnual cost sum of power transmission and distribution, Q, for target province iElectricity consumption of a voltage grade i; the value range of i belongs to {500kV, 220kV, 110kV, 35kV, 10kV and less than 1kV }.
Step S2, the power transmission and distribution costs of each voltage class obtained in step S1 are transferred to physically adjacent low voltage classes step by step with the transformer capacity as an allocation factor, and the costs of the upper stage transferred to the current stage are summed with the costs of the current stage and then transferred down to the lowest voltage class, so as to obtain the power transmission and distribution costs of each voltage class after redistribution, specifically, the power transmission and distribution costs of each voltage class after redistribution are calculated by using the following formula:
Figure BDA0002262514160000032
in the formula C i' is the cost of the redistributed voltage class i;
Figure BDA0002262514160000033
a power transmission and distribution cost for conducting from voltage level n to voltage level i; v iTransformer capacity at voltage level i; v fTransformer capacity at voltage level f; when i is 220kv, n is e {500kv, 220kv }, and f is e {220 kv, 110kv, 35kv, 10kv }; when i ∈ {110 kilovolt ∈35kv, 10kv } n, f ∈ {220 kv, 110kv, 35kv, 10kv }; when i is less than 1 kilovolt, n belongs to {10 kilovolts, less than 1 kilovolt }, and f is less than 1 kilovolt; n is more than or equal to i and f is less than or equal to i.
The types of users at each voltage level described in step S3 specifically include three types, i.e., 35kv residential users, 10kv residential users, and residential users less than 1 kv.
Step S3, the power transmission and distribution costs of each voltage class obtained in step S2 after redistribution is conducted to each type of user under each voltage class by using the electric quantity as an apportionment factor, so as to obtain the power transmission and distribution costs of each type of user under each voltage class, specifically, the power transmission and distribution costs of each type of user under each voltage class are calculated by using the following formula:
Figure BDA0002262514160000041
in the formula
Figure BDA0002262514160000042
The power transmission and distribution cost of a class I voltage class user of a voltage class i; c iCost for redistributed voltage class i;
Figure BDA0002262514160000048
the electricity consumption of a class I voltage class user of the voltage class i; the value range of i belongs to {500kV, 220kV, 110kV, 35kV, 10kV and less than 1kV }; the value range of l belongs to {35kV, 10kV and less than 1kV }.
Step S4, summing the power transmission and distribution costs obtained in steps S1-S3 to obtain the total power transmission and distribution cost of the residential users, specifically, calculating the total power transmission and distribution cost C of the residential users by using the following formula Residents：
Figure BDA0002262514160000043
In the formula
Figure BDA0002262514160000044
The power transmission and distribution cost of all residential users under the voltage level of 35 kilovolts;
Figure BDA0002262514160000045
the power transmission and distribution cost of all residential users under the voltage level of 10 kilovolts;
Figure BDA0002262514160000046
the power transmission and distribution cost of all residential users under the voltage level of less than 1 kilovolt.
The classifying of the residential areas according to the residential space load density in step S5 is specifically performed according to the difference of the residential space load density: a. the +Class, class A, class B, and class C; wherein A is +Class is that the load density sigma of the power supply area is more than or equal to 30 (MW/km) 2) A region; the load density of the A-type power supply region is more than or equal to 15 and less than 30 (MW/km) 2) A region; the load density of the B type power supply region is more than or equal to 6 and less than 15 (MW/km) 2) A region; the load density of the C-type power supply region is more than or equal to 1 and less than 6 (MW/km) 2) And (4) regions.
Step S5, the total power transmission and distribution cost of the residents obtained in step S4 is distributed to each load density region according to the transformer capacity ratio, so as to obtain the total power transmission and distribution cost of the residents in the load density region, specifically, the total power transmission and distribution cost of the residents in the load density region is obtained by calculating according to the following formula:
Figure BDA0002262514160000047
in the formula
Figure BDA0002262514160000051
The total electricity consumption cost of residents in the area k; c ResidentsThe total power transmission and distribution cost of the resident users; v k' transformer capacity for region k; sigma V k' is the sum of the transformer capacity of each area; k is k ∈ { A +,A,B,C}。
Step S6, in proportion to the transformer capacity, the total cost of power transmission and distribution for the residential users in the region with the fractional load density obtained in step S5,the total cost of power transmission and distribution of the residential users of each residential district in the region with the load density is obtained by distributing the total cost to each residential district, and specifically, the total cost of power transmission and distribution of the residential users of each residential district in the region with the load density is obtained by calculating according to the following formula
Figure BDA0002262514160000052
Figure BDA0002262514160000053
In the formula
Figure BDA0002262514160000054
Power transmission and distribution costs for m cells of region k;
Figure BDA0002262514160000055
the total electricity consumption cost of residents in the area k; k is k ∈ { A +,A,B,C}；V′ mTotal transformer capacity for m cells of region k; sigma V' mIs the sum of the transformer capacities of all cells of region k.
Step S7, calculating the electricity price of each residential district according to the total power transmission and distribution cost of the residential users of each residential district in the fractional load density area obtained in step S6, specifically calculating the electricity price of each residential district by using the following formula:
Figure BDA0002262514160000056
in the formula
Figure BDA0002262514160000057
The electricity price for the residents in the m cells of the area k; power transmission and distribution costs for m cells of region k; q mAverage annual power consumption of the residents in the m cells of the area k; k is k ∈ { A +,A,B,C}。
According to the residential electricity consumption cost pricing method considering the residential space load density difference, the final residential electricity consumption cost is calculated by dividing the total annual cost of power transmission and distribution according to factors such as the power grid level, the residential space density of a user, the voltage level and the like; therefore, the method can calculate the electricity consumption cost of residents more scientifically, reasonably and accurately, and has good applicability and easy implementation.
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FIG. 1 is a schematic process flow diagram of the process of the present invention.
Detailed Description
FIG. 1 is a schematic flow chart of the method of the present invention: the resident electricity consumption cost pricing method considering the difference of the residential space load density provided by the invention comprises the following steps:
s1, acquiring the annual cost sum of power transmission and distribution of a target province, and allocating the annual cost sum to each voltage class by taking electric quantity as an allocation factor to obtain the power transmission and distribution cost of each voltage class; specifically, the total annual cost of power transmission and distribution of a target province is obtained in a state energy agency supervision notice; meanwhile, the power transmission and distribution cost of each voltage grade is calculated by adopting the following formula:
Figure BDA0002262514160000061
in the formula C iCost for voltage class i, C General assemblyAnnual cost sum of power transmission and distribution, Q, for target province iElectricity consumption of a voltage grade i; the value range of i belongs to {500kV, 220kV, 110kV, 35kV, 10kV and less than 1kV };
s2, conducting the power transmission and distribution cost of each voltage grade obtained in the step S1 to a physically adjacent low voltage grade step by step along with the power flow by taking the transformer capacity as an apportionment factor, summing the cost conducted from a higher level to the current level and the cost generated by the current level, and then conducting the sum downwards until reaching the lowest voltage grade, thereby obtaining the power transmission and distribution cost of each voltage grade after redistribution; specifically, the power transmission and distribution cost of each redistributed voltage class is calculated by adopting the following formula:
in the formula C i' is the cost of the redistributed voltage class i;
Figure BDA0002262514160000063
a power transmission and distribution cost for conducting from voltage level n to voltage level i; v iTransformer capacity at voltage level i; v fTransformer capacity at voltage level f; when i is 220kv, n is e {500kv, 220kv }, and f is e {220 kv, 110kv, 35kv, 10kv }; when i belongs to {110 kilovolts, 35 kilovolts and 10 kilovolts }, n and f belong to {220 kilovolts, 110 kilovolts, 35 kilovolts and 10 kilovolts }; when i is less than 1 kilovolt, n belongs to {10 kilovolts, less than 1 kilovolt }, and f is less than 1 kilovolt; n is more than or equal to i and f is less than or equal to i;
s3, conducting the power transmission and distribution cost of each voltage grade obtained in the step S2 to various users (specifically including 35kV residential users, 10kV residential users and residential users less than 1 kV) under each voltage grade by taking the electric quantity as an apportionment factor, so as to obtain the power transmission and distribution cost of various users under each voltage grade; specifically, the power transmission and distribution cost of various users under various voltage levels is calculated by adopting the following formula:
Figure BDA0002262514160000071
in the formula
Figure BDA0002262514160000077
The power transmission and distribution cost of a class I voltage class user of a voltage class i; c i' is the cost of the redistributed voltage class i;
Figure BDA0002262514160000072
the electricity consumption of a class I voltage class user of the voltage class i; the value range of i belongs to {500kV, 220kV, 110kV, 35kV, 10kV and less than 1kV }; the value range of l belongs to {35kV, 10kV and less than 1kV };
s4, summing the power transmission and distribution costs obtained in the steps S1-S3 to obtain the total power transmission and distribution cost of the resident users; specifically, the total cost C of power transmission and distribution of the resident users is calculated by adopting the following formula Residents：
Figure BDA0002262514160000073
In the formula
Figure BDA0002262514160000074
The power transmission and distribution cost of all residential users under the voltage level of 35 kilovolts; the power transmission and distribution cost of all residential users under the voltage level of 10 kilovolts;
Figure BDA0002262514160000076
the power transmission and distribution cost of all residential users under the voltage level of less than 1 kilovolt;
s5, classifying the residential areas according to the residential space load density, and distributing the total power transmission and distribution cost of the residential users obtained in the step S4 to each load density area according to the transformer capacity proportion, so that the total power transmission and distribution cost of the residential users in the load density area is obtained; specifically, the method is divided into four types according to the difference of the residential space load density: a. the +Class, class A, class B, and class C; wherein A is +Class is that the load density sigma of the power supply area is more than or equal to 30 (MW/km) 2) A region; the load density of the A-type power supply region is more than or equal to 15 and less than 30 (MW/km) 2) A region; the load density of the B type power supply region is more than or equal to 6 and less than 15 (MW/km) 2) A region; the load density of the C-type power supply region is more than or equal to 1 and less than 6 (MW/km) 2) A region; meanwhile, the total power transmission and distribution cost of the resident users in the partial load density area is calculated by adopting the following formula:
Figure BDA0002262514160000081
in the formula
Figure BDA0002262514160000082
The total electricity consumption cost of residents in the area k; c ResidentsThe total power transmission and distribution cost of the resident users; v k' transformer capacity for region k; sigma V' kThe sum of the transformer capacity of each area; k is k ∈ { A +,A,B,C}；
S6, distributing the total power transmission and distribution cost of the residential users in the load density divided area obtained in the step S5 to each residential district in proportion to the transformer capacity, so as to obtain the total power transmission and distribution cost of the residential users in each residential district in the load density divided area; specifically, the total cost of power transmission and distribution of residential users in each residential district in the region with the fractional load density is calculated by adopting the following formula
Figure BDA0002262514160000083
Figure BDA0002262514160000084
In the formula
Figure BDA0002262514160000085
Power transmission and distribution costs for m cells of region k; the total electricity consumption cost of residents in the area k; k is k ∈ { A +,A,B,C}；V′ mTotal transformer capacity for m cells of region k; sigma V' mIs the sum of the transformer capacities of all cells of region k;
s7, calculating the total power transmission and distribution cost of residential communities according to the residential user power transmission and distribution cost of the residential communities in the fractional load density area obtained in the step S6 to obtain the electricity price of each residential community; specifically, the electricity price of each residential district is calculated by adopting the following formula:
Figure BDA0002262514160000087
in the formula
Figure BDA0002262514160000088
The electricity price for the residents in the m cells of the area k; power transmission and distribution costs for m cells of region k; q mAverage annual power consumption of the residents in the m cells of the area k; k is k ∈ { A +,A,B,C}。
The process of the invention is further illustrated below with reference to one example:
the known conditions are: annual cost sum C of power transmission and distribution in a certain province General assemblyIs 190 hundred million yuan; ratio of electric quantity of each voltage grade: 500kv, 220kv, 110kv, 35kv, 10kv and less than 1kv, i.e. 10:5:3:4:2: 1; the ratio of the total capacity of the transformer of each voltage class: 220 kilovolts, 110 kilovolts, 35 kilovolts, 10 kilovolts, less than 1 kilovolt, 6:5:4:3: 2; the ratio of the user electricity consumption under each voltage class is as follows: 220 KV: 220KV large industrial users, and 220KV industrial and commercial users are 5: 4; 110KV and 110KV are used by large-scale users: 110KV industrial and commercial users 4: 3; 35 kilovolts of large industrial users, 35 kilovolts of industrial and commercial users, 35 kilovolts of agricultural users and 35 kilovolts of residential users are 5:4:1: 2; 10 kilovolts of large industrial users, 10 kilovolts of industrial and commercial users, 10 kilovolts of agricultural users and 10 kilovolts of residential users are 4:6:1: 3; the ratio of the voltage to the voltage is less than 1 kilovolt, the ratio of the voltage to the voltage is less than 1 kilovolt, and the ratio of the voltage to the voltage is less than 1 kilo.
A +A, B and the ratio of the transformer capacity between the C areas is 5:4:7: 3; the area A is provided with 4 cells in total, the ratio of the transformer capacity is 1:2:3:4, and the annual average electricity consumption of the cell 1 is 1.3 hundred million KW.
Taking the electricity price pricing of 1 cell in area a as an example:
calculated from S1:
the total power transmission and distribution cost is distributed to each voltage grade by taking the electric quantity as a distribution factor:
Figure BDA0002262514160000091
Figure BDA0002262514160000092
Figure BDA0002262514160000093
Figure BDA0002262514160000095
then, it is calculated from step S2 that:
Figure BDA0002262514160000102
Figure BDA0002262514160000103
Figure BDA0002262514160000105
conducting the cost of each voltage class to various users according to the calculation of step S3:
Figure BDA0002262514160000107
Figure BDA0002262514160000108
Figure BDA0002262514160000109
calculating the total cost of the residential power transmission and distribution according to the step S4 can obtain:
Figure BDA0002262514160000111
the power transmission and distribution cost of the area a is calculated according to step S5:
Figure BDA0002262514160000112
the power transmission and distribution cost of the a-area cell 1 is calculated according to step S6:
Figure BDA0002262514160000113
the electricity price of the a-region cell 1 is calculated according to step S7 as:
Figure BDA0002262514160000114

Claims (10)

1. a resident electricity consumption cost pricing method considering residential space load density difference comprises the following steps:
s1, acquiring the annual cost sum of power transmission and distribution of a target province, and allocating the annual cost sum to each voltage class by taking electric quantity as an allocation factor to obtain the power transmission and distribution cost of each voltage class;
s2, conducting the power transmission and distribution cost of each voltage grade obtained in the step S1 to a physically adjacent low voltage grade step by step along with the power flow by taking the transformer capacity as an apportionment factor, summing the cost conducted from a higher level to the current level and the cost generated by the current level, and then conducting the sum downwards until reaching the lowest voltage grade, thereby obtaining the power transmission and distribution cost of each voltage grade after redistribution;
s3, conducting the power transmission and distribution cost of each voltage grade obtained in the step S2 after redistribution to various users under each voltage grade by taking the electric quantity as a sharing factor, so as to obtain the power transmission and distribution cost of various users under each voltage grade;
s4, summing the power transmission and distribution costs obtained in the steps S1-S3 to obtain the total power transmission and distribution cost of the resident users;
s5, classifying the residential areas according to the residential space load density, and distributing the total power transmission and distribution cost of the residential users obtained in the step S4 to each load density area according to the transformer capacity proportion, so that the total power transmission and distribution cost of the residential users in the load density area is obtained;
s6, distributing the total power transmission and distribution cost of the residential users in the load density divided area obtained in the step S5 to each residential district in proportion to the transformer capacity, so as to obtain the total power transmission and distribution cost of the residential users in each residential district in the load density divided area;
and S7, calculating the electricity price of each residential district according to the total power transmission and distribution cost of the residential users of each residential district in the fractional load density area obtained in the step S6.
2. The residential electricity consumption cost pricing method considering residential space load density difference according to claim 1, wherein the step S1 is to obtain the annual cost sum of power transmission and distribution of the target province, specifically, obtain the annual cost sum of power transmission and distribution of the target province in the national energy source administration regulation bulletin; step S1, the total annual cost is allocated to each voltage class by using the electric quantity as an allocation factor to obtain the power transmission and distribution cost of each voltage class, specifically, the power transmission and distribution cost of each voltage class is calculated by using the following formula:
Figure FDA0002262514150000021
in the formula C iCost for voltage class i, C General assemblyAnnual cost sum of power transmission and distribution, Q, for target province iElectricity consumption of a voltage grade i; the value range of i belongs to {500kV, 220kV, 110kV, 35kV, 10kV and less than 1kV })。
3. The residential electricity consumption cost pricing method according to claim 2, wherein in step S2, the transmission and distribution costs of each voltage class obtained in step S1 are conducted to physically adjacent low voltage classes along with the power flow by using the transformer capacity as an apportionment factor, and the costs conducted from the upper stage to the current stage are summed with the costs generated from the current stage and then conducted downwards to the lowest voltage class, so as to obtain the transmission and distribution costs of each voltage class after redistribution, specifically, the transmission and distribution costs of each voltage class after redistribution are calculated by the following formula:
Figure FDA0002262514150000022
c in formula (II)' iCost for redistributed voltage class i; a power transmission and distribution cost for conducting from voltage level n to voltage level i; v iTransformer capacity at voltage level i; v fTransformer capacity at voltage level f; when i is 220kv, n is e {500kv, 220kv }, and f is e {220 kv, 110kv, 35kv, 10kv }; when i belongs to {110 kilovolts, 35 kilovolts and 10 kilovolts }, n and f belong to {220 kilovolts, 110 kilovolts, 35 kilovolts and 10 kilovolts }; when i is less than 1 kilovolt, n belongs to {10 kilovolts, less than 1 kilovolt }, and f is less than 1 kilovolt; n is more than or equal to i and f is less than or equal to i.
4. The residential electricity consumption cost pricing method considering residential space load density differences according to claim 3, wherein the categories of users at each voltage level of step S3 specifically include 35kv, 10kv and less than 1kv residential users.
5. The residential electricity consumption cost pricing method according to claim 4, wherein in step S3, the power transmission and distribution costs of each voltage class obtained in step S2 after redistribution are conducted to each class of users at each voltage class by using the electricity as a sharing factor, so as to obtain the power transmission and distribution costs of each class of users at each voltage class, specifically, the power transmission and distribution costs of each class of users at each voltage class are calculated by using the following formula:
Figure FDA0002262514150000031
in the formula
Figure FDA0002262514150000032
The power transmission and distribution cost of a class I voltage class user of a voltage class i; c' iCost for redistributed voltage class i;
Figure FDA0002262514150000033
the electricity consumption of a class I voltage class user of the voltage class i; the value range of i belongs to {500kV, 220kV, 110kV, 35kV, 10kV and less than 1kV }; the value range of l belongs to {35kV, 10kV and less than 1kV }.
6. The residential electricity consumption cost pricing method considering residential space load density difference as claimed in claim 5, wherein the step S4 is performed by summing the power transmission and distribution costs obtained in the steps S1-S3 to obtain the total power transmission and distribution cost of the residential users, and specifically, the total power transmission and distribution cost C of the residential users is calculated by the following formula Residents：
Figure FDA0002262514150000034
In the formula
Figure FDA0002262514150000035
The power transmission and distribution cost of all residential users under the voltage level of 35 kilovolts;
Figure FDA0002262514150000036
the power transmission and distribution cost of all residential users under the voltage level of 10 kilovolts; the power transmission and distribution cost of all residential users under the voltage level of less than 1 kilovolt.
7. The residential electricity cost pricing method considering residential space load density difference according to claim 6, wherein the residential areas are classified according to the residential space load density in step S5, specifically into four categories according to the residential space load density difference: a. the +Class, class A, class B, and class C; wherein A is +Class is that the load density sigma of the power supply area is more than or equal to 30 (MW/km) 2) A region; the load density of the A-type power supply region is more than or equal to 15 and less than 30 (MW/km) 2) A region; the load density of the B type power supply region is more than or equal to 6 and less than 15 (MW/km) 2) A region; the load density of the C-type power supply region is more than or equal to 1 and less than 6 (MW/km) 2) And (4) regions.
8. The residential electricity consumption cost pricing method considering residential space load density differences according to claim 7, wherein the step S5 is implemented by distributing the total power transmission and distribution cost of the residential users obtained in the step S4 to each load density region according to the transformer capacity ratio, so as to obtain the total power transmission and distribution cost of the residential users in each load density region, specifically calculating the total power transmission and distribution cost of the residential users in each load density region by using the following formula:
in the formula
Figure FDA0002262514150000042
The total electricity consumption cost of residents in the area k; c ResidentsThe total power transmission and distribution cost of the resident users; v' kTransformer capacity for region k; sigma V' kThe sum of the transformer capacity of each area; k is k ∈ { A +,A,B,C}。
9. The residential electricity consumption cost pricing method according to claim 8, wherein the total cost of power transmission and distribution of residential users in the fractional load density region obtained in step S5 is distributed to each residential district in proportion to the transformer capacity to obtain the total cost of power transmission and distribution of residential users in each residential district in the fractional load density region, as set forth in step S6, and the total cost of power transmission and distribution of residential users in each residential district in the fractional load density region is calculated by using the following formula
Figure FDA0002262514150000043
Figure FDA0002262514150000044
In the formula
Figure FDA0002262514150000045
Power transmission and distribution costs for m cells of region k;
Figure FDA0002262514150000046
the total electricity consumption cost of residents in the area k; k is k ∈ { A +,A,B,C}；V' mTotal transformer capacity for m cells of region k; sigma V' mIs the sum of the transformer capacities of all cells of region k.
10. The residential electricity consumption cost pricing method considering residential space load density difference as claimed in claim 9, wherein the electricity price of each residential district is calculated according to the total power transmission and distribution cost of residential users of each residential district in the divided load density region obtained in step S6 in step S7, specifically by using the following formula:
Figure FDA0002262514150000051
in the formula
Figure FDA0002262514150000052
The electricity price for the residents in the m cells of the area k;
Figure FDA0002262514150000053
power transmission and distribution costs for m cells of region k; q mAverage annual power consumption of the residents in the m cells of the area k; k is k ∈ { A +,A,B,C}。
CN201911076163.7A 2019-11-06 2019-11-06 Residential electricity consumption cost pricing method considering residential space load density difference Pending CN110782295A (en)

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