CN104408650A - Settlement method of separate deviation electricity weighting for inter-provincial electric energy transaction - Google Patents

Abstract

The invention discloses a settlement method of deviation electricity separate weighting for inter-provincial electric energy transaction. The settlement method includes: 1) calculating the planned electricity of the supplier and the buyer; 2) calculating the planned electricity fee based on the approved electricity price, the actual electricity price, the planned electricity and the actual electricity; 3) calculating the deviation electricity and its price, wherein, the deviation electricity of each transaction main body is the deviation of the actual electricity and the planned electricity, the deviation price is the weighted average of each transaction based on the planned electricity; 4) calculating the deviation electricity fee of the parties to the transaction, wherein the deviation electricity fee is the product of the deviation electricity and the deviation price; 5) calculating the total electricity fee of the parties to the transaction, wherein the total electricity fee is the sum of the planned electricity fee and the deviation electricity fee; 6) calculating the total transmission fee, wherein the total transmission fee is the difference of the total electricity fee between the supplier and the buyer. The present disclosure can effectively solve the problem of unfair allocation and complex process in the current settlement method.

Description

The power trade settlement method of district transprovincially of the independent weighting price of a kind of deviation electricity

Technical field

The invention belongs to Power System Analysis field, particularly a kind of defining method for determining the electricity charge that transprovincially district's power trade clearing large deviations electricity price and each transaction agent are collected or paid, belongs to the innovative technology of district's power trade settlement method transprovincially.

Background technology

Transprovincially district's power trade alleviates energy source distribution and the unbalanced problem of electricity consumption effectively, creates good social benefit.Transprovincially power trade settlement method in district's relates to the key benefits of each transaction agent, needs the actual conditions design settlement method for different market.According to being difference to deviation electricity processing mode, settlement method two class that transprovincially district's power trade settlement method can be divided into deviation electricity to share the settlement method of clearing and deviation electricity settling accounts separately.Along with transaction size constantly increases, kind and the quantity of transaction agent progressively increase, trade mode is tending towards complicated, deviation electricity is there is and shares the problem such as injustice, line loss exception in the settlement method that more original deviation electricity share clearing in practical operation, the settlement method that deviation electricity is settled accounts separately then avoids the problem that complicated deviation electricity is shared, key problem how to formulate the price of deviation electricity, not only to use for reference advanced electric energy clearing experience both at home and abroad, the present situation that Power Market Construction is at the early-stage will be considered simultaneously.

Summary of the invention

The object of the invention is to consider the problems referred to above and a kind of deviation electricity power trade settlement method of district transprovincially that independent weighting is fixed a price is provided.The present invention effectively can solve current balance method large deviations electricity and share unfairness and the numerous and diverse situation of settlement process, for the complex transaction trend that may occur future provides can the settlement method of reference.

Technical scheme of the present invention is: the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity of the present invention, includes following steps:

1) the plan electricity of each power transmission side and each power purchase side is calculated respectively;

2) appraising and deciding rate for incorporation into the power network and landing electricity price and plan electricity volume and the electricity Settlement Plan electricity charge of landing according to each transaction;

3) calculation deviation electricity and electricity price, the deviation electricity of each transaction agent equals actual online (landing) electricity and the deviation of planning electricity, and deviation electricity price is obtained according to plan electricity weighted mean by the electricity price of each transaction;

4) the deviation electricity charge of settlement bargain both sides, the deviation electricity charge are that deviation electricity and deviation electricity price are long-pending;

5) total electricity charge of settlement bargain both sides, total electricity charge are the plan electricity charge and deviation electricity charge sum;

6) settle accounts total transmit power to take, total transmission charges is the total expenses that the total expenses of power purchase side deducts power transmission side.

Above-mentioned steps 1) in, calculate plan electricity, suppose there is a m power transmission side, a n power purchase side, the plan electricity volume of power transmission side i is:

$P_i^{\text{'}}=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{ij}},(i=\mathrm{1,2},...m)---\left(1\right)$

Wherein, P _ijfor power transmission side i send the plan electricity volume of power purchase side j, when without plan, P _ij=0.

The plan of power purchase side j is landed electricity and is:

$Q_j^{\text{'}}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{Q}_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{Q}_{\mathrm{kj}}^B-\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{jk}}^B,(j=\mathrm{1,2},...,n)---\left(2\right)$

Wherein, Q _ijfor power transmission side i send the plan of power purchase side j to land electricity, meet

Q _ij=P _ij× (1-K _ij), K _ijfor power transmission side i send, power purchase side j's appraise and decide line loss per unit. with for the program trading between power purchase side, can be the transaction of actual generation physics trend, also can be the transfer of banking contract, for power purchase side k send the plan of power purchase side j to land electricity, for power purchase side j send the plan electricity volume of power purchase side k, when power purchase side k and j does not conclude the business, with be zero.

Above-mentioned steps 2) in, appraising and deciding rate for incorporation into the power network and landing electricity price and plan electricity volume and the method for the electricity Settlement Plan electricity charge of landing and be according to each transaction:

The plan electricity charge that power transmission side i collects are:

$G_i^{\text{'}}=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{ij}}\×P_{\mathrm{ij}},(i=\mathrm{1,2},...,m)---\left(3\right)$

Wherein, S _ijfor power transmission side i send the plan rate for incorporation into the power network of power purchase side j.

The plan electricity charge that power purchase side j pays are:

$F_j^{\text{'}}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{L}_{\mathrm{ij}}\×Q_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{L}_{\mathrm{kj}}^B\×Q_{\mathrm{kj}}^B-\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{jk}}^B\×P_{\mathrm{jk}}^B,(j=\mathrm{1,2},...,n)---\left(4\right)$

Wherein, L _ijfor power transmission side i send the plan of power purchase side j to land electricity price, for power purchase side k send the plan of power purchase side j to land electricity price, for power purchase side j send the plan rate for incorporation into the power network of power purchase side k.

Above-mentioned steps 3) in, calculation deviation electricity and electricity price, the deviation electricity of each transaction agent equals actual online (landing) electricity and the deviation of planning electricity, and deviation electricity price is obtained according to plan electricity weighted mean by the electricity price of each transaction, and concrete grammar is as follows:

The online deviation electricity of power transmission side i is:

△P _i＝P _i-P′ ₁,(i＝1,2,...,m) (5)

Wherein, P _ifor the actual electricity volume of power transmission side i, measured by online end energy metering table.

The deviation electricity price of power transmission side i is:

$S_{\mathrm{\Δi}}=\frac{\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{ij}}\×P_{\mathrm{ij}}}{\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{ij}}}=\frac{G_i^{\text{'}}}{P_i^{\text{'}}},(i=\mathrm{1,2},...,m)---\left(6\right)$

The deviation electricity that lands of power purchase side j is:

△Q _j＝Q _j-Q′ _j,(j＝1,2,...,n) (7)

Wherein, Q _jfor the actual electricity that lands of power purchase side j, energy metering table is held to measure by landing.

The deviation electricity price of power purchase side j is:

$L_{\mathrm{\Δj}}=\frac{\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{L}_{\mathrm{ij}}\×Q_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{L}_{\mathrm{kj}}^B\×Q_{\mathrm{kj}}^B+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{jk}}^B\×P_{\mathrm{jk}}^B}{\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{Q}_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{Q}_{\mathrm{kj}}^B+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{jk}}^B},(j=\mathrm{1,2},...,n)---\left(8\right)$

Above-mentioned steps 4) in, the deviation electricity charge of settlement bargain both sides, the deviation electricity charge are that deviation electricity and deviation electricity price are long-pending, and concrete grammar is as follows:

The deviation electricity charge of power transmission side i are:

λ _i＝△P _i×S _△i,(i＝1,2,...,m) (9)

The deviation electricity charge of power purchase side j are:

μ _j＝△Q _j×L _△j,(j＝1,2,...,n) (10)

Above-mentioned steps 5) in, total electricity charge of settlement bargain both sides, total electricity charge are the plan electricity charge and deviation electricity charge sum, and concrete grammar is as follows:

Total electricity charge that power transmission side i collects are:

W _i＝λ _i+G′ _i,(i＝1,2,...,m) (11)

Total electricity charge that power purchase side j pays are:

V _j＝μ _j+F′ _j,(j＝1,2,...,n) (12)

Above-mentioned steps 6) in, clearing total transmit power takes, and total transmission charges is that the total expenses that power purchase side pays deducts the total expenses collected power transmission side.Method is as follows:

Total transmit power expense is:

$S=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{v}_j-\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{W}_i---\left(13\right).$

The power trade settlement method of district transprovincially of the independent weighting price of deviation electricity of the present invention effectively can solve deviation electricity and share unfairness, the problem that settlement process is numerous and diverse, for various types of districts transprovincially power trade provides clearing foundation.The present invention is a kind of convenient and practical power trade settlement method of district transprovincially.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity of the present invention.

Embodiment

Embodiment:

As shown in Figure 1, the defining method of the district transprovincially of the present invention power trade clearing electricity charge, includes following steps to the schematic diagram of the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity of the present invention:

1) calculate plan electricity, suppose there is a m power transmission side, a n power purchase side, the plan electricity volume of power transmission side i is:

$P_i^{\text{'}}=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{ij}},(i=\mathrm{1,2},...,m)---\left(1\right)$

Wherein, P _ijfor power transmission side i send the plan electricity volume of power purchase side j, when without plan, P _ij=0.

The plan of power purchase side j is landed electricity and is:

$Q_j^{\text{'}}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{Q}_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{Q}_{\mathrm{kj}}^B-\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{jk}}^B,(j=\mathrm{1,2},...,n)---\left(2\right)$

Wherein, Q _ijfor power transmission side i send the plan of power purchase side j to land electricity, meet Q _ij=P _ij× (1-K _ij), K _ijfor power transmission side i send, power purchase side j's appraise and decide line loss per unit. with for the program trading between power purchase side, can be the transaction of actual generation physics trend, also can be the transfer of banking contract, for power purchase side k send the plan of power purchase side j to land electricity, for power purchase side j send the plan electricity volume of power purchase side k, when power purchase side k and j does not conclude the business, with be zero.

2) the Settlement Plan electricity charge, appraising and deciding rate for incorporation into the power network and landing electricity price and plan electricity volume and the electricity Settlement Plan electricity charge of landing according to each transaction.

The plan electricity charge that power transmission side i collects are:

$G_i^{\text{'}}=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{ij}}\×P_{\mathrm{ij}},(i=\mathrm{1,2},...,m)---\left(3\right)$

Wherein, S _ijfor power transmission side i send the plan rate for incorporation into the power network of power purchase side j.

The plan electricity charge that power purchase side j pays are:

$F_j^{\text{'}}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{L}_{\mathrm{ij}}\×Q_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{L}_{\mathrm{kj}}^B\×Q_{\mathrm{kj}}^B-\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{jk}}^B\×P_{\mathrm{jk}}^B,(j=\mathrm{1,2},...,n)---\left(4\right)$

Wherein, L _ijfor power transmission side i send the plan of power purchase side j to land electricity price, for power purchase side k send the plan of power purchase side j to land electricity price, for power purchase side j send the plan rate for incorporation into the power network of power purchase side k.

3) calculation deviation electricity and electricity price, the deviation electricity of each transaction agent equals actual online (landing) electricity and the deviation of planning electricity, and deviation electricity price is obtained according to plan electricity weighted mean by the electricity price of each transaction.

The online deviation electricity of power transmission side i is:

△P _i＝P _i-P′ _i,(i＝1,2,...,m) (5)

Wherein, P _ifor the actual electricity volume of power transmission side i, measured by online end energy metering table.

The deviation electricity price of power transmission side i is:

$S_{\mathrm{\Δi}}=\frac{\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{ij}}\×P_{\mathrm{ij}}}{\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{ij}}}=\frac{G_i^{\text{'}}}{P_i^{\text{'}}},(i=\mathrm{1,2},...,m)---\left(6\right)$

The deviation electricity that lands of power purchase side j is:

△Q _j＝Q _j-Q′ _j,(j＝1,2,...,n) (7)

Wherein, Q _jfor the actual electricity that lands of power purchase side j, energy metering table is held to measure by landing.

The deviation electricity price of power purchase side j is:

$L_{\mathrm{\Δj}}=\frac{\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{L}_{\mathrm{ij}}\×Q_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{L}_{\mathrm{kj}}^B\×Q_{\mathrm{kj}}^B+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{jk}}^B\×P_{\mathrm{jk}}^B}{\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{Q}_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{Q}_{\mathrm{kj}}^B+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{jk}}^B},(j=\mathrm{1,2},...,n)---\left(8\right)$

Above-mentioned steps 4) in, the deviation electricity charge of settlement bargain both sides, the deviation electricity charge are that deviation electricity and deviation electricity price are long-pending.Method is as follows:

The deviation electricity charge of power transmission side i are:

λ _i＝△P _i×S _△i,(i＝1,2,...,m) (9)

The deviation electricity charge of power purchase side j are:

μ _j＝△Q _j×L _△j,(j＝1,2,...,n) (10)

Above-mentioned steps 5) in, total electricity charge of settlement bargain both sides, total electricity charge are the plan electricity charge and deviation electricity charge sum.Method is as follows:

Total electricity charge that power transmission side i collects are:

W _i＝λ _i+G′ _i,(i＝1,2,...,m) (11)

Total electricity charge that power purchase side j pays are:

V _j＝μ _j+F′ _j,(j＝1,2,...,n) (12)

Above-mentioned steps 6) in, clearing total transmit power takes, and total transmission charges is that the total expenses that power purchase side pays deducts the total expenses collected power transmission side.Method is as follows:

Total transmit power expense is:

$S=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{V}_j-\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{W}_i---\left(13\right).$ 。

Claims (7)

1. the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity, is characterized in that comprising the steps:

1) the plan electricity of each power transmission side and each power purchase side is calculated respectively;

2) appraising and deciding rate for incorporation into the power network and landing electricity price and plan electricity volume and the electricity Settlement Plan electricity charge of landing according to each transaction;

3) calculation deviation electricity and electricity price, the deviation electricity of each transaction agent equals actual online (landing) electricity and the deviation of planning electricity, and deviation electricity price is obtained according to plan electricity weighted mean by the electricity price of each transaction;

4) the deviation electricity charge of settlement bargain both sides, the deviation electricity charge are that deviation electricity and deviation electricity price are long-pending;

5) total electricity charge of settlement bargain both sides, total electricity charge are the plan electricity charge and deviation electricity charge sum;

6) settle accounts total transmit power to take, total transmission charges is the total expenses that the total expenses of power purchase side deducts power transmission side.

2. the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity according to claim 1, is characterized in that above-mentioned steps 1) in, calculate plan electricity, suppose there is a m power transmission side, a n power purchase side, the plan electricity volume of power transmission side i is:

${P_i}^{\′}=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{ij}},(i=\mathrm{1,2},...,m)---\left(1\right)$

Wherein, P _ijfor power transmission side i send the plan electricity volume of power purchase side j, when without plan, P _ij=0,

The plan of power purchase side j is landed electricity and is:

$Q_j^{\′}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{Q}_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{Q}_{\mathrm{kj}}^B-\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{jk}}^B,(j=\mathrm{1,2},...,n)---\left(2\right)$

Wherein, Q _ijfor power transmission side i send the plan of power purchase side j to land electricity, meet Q _ij=P _ij× (1-K _ij), K _ijfor power transmission side i send, power purchase side j's appraise and decide line loss per unit, with for the program trading between power purchase side, can be the transaction of actual generation physics trend, also can be the transfer of banking contract, for power purchase side k send the plan of power purchase side j to land electricity, for power purchase side j send the plan electricity volume of power purchase side k, when power purchase side k and j does not conclude the business, with be zero.

3. the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity according to claim 1, it is characterized in that above-mentioned steps 2) in, appraising and deciding rate for incorporation into the power network and landing electricity price and plan electricity volume and the method for the electricity Settlement Plan electricity charge of landing and be according to each transaction:

The plan electricity charge that power transmission side i collects are:

$G_i^{\′}=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{ij}}\×P_{\mathrm{ij}},(i=\mathrm{1,2},...,m)---\left(3\right)$

Wherein, S _ijfor power transmission side i send the plan rate for incorporation into the power network of power purchase side j,

The plan electricity charge that power purchase side j pays are:

$F_j^{\′}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{L}_{\mathrm{ij}}\×Q_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{L}_{\mathrm{kj}}^B\×Q_{\mathrm{kj}}^B-\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{jk}}^B\×P_{\mathrm{jk}}^B,(j=\mathrm{1,2},...,n)---\left(4\right)$

Wherein, L _ijfor power transmission side i send the plan of power purchase side j to land electricity price, for power purchase side k send the plan of power purchase side j to land electricity price, for power purchase side j send the plan rate for incorporation into the power network of power purchase side k.

4. the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity according to claim 1, it is characterized in that above-mentioned steps 3) in, calculation deviation electricity and electricity price, the deviation electricity of each transaction agent equals actual online (landing) electricity and the deviation of planning electricity, deviation electricity price is obtained according to plan electricity weighted mean by the electricity price of each transaction, and concrete grammar is as follows:

The online deviation electricity of power transmission side i is:

△P _i＝P _i-P′ _i,(i＝1,2,...,m) (5)

Wherein, P _ifor the actual electricity volume of power transmission side i, measured by online end energy metering table,

The deviation electricity price of power transmission side i is:

$S_{\mathrm{\Δi}}=\frac{\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{ij}}\×P_{\mathrm{ij}}}{\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{ij}}}=\frac{G_i^{\′}}{P_i^{\′}},(i=\mathrm{1,2},...,m)---\left(6\right)$

The deviation electricity that lands of power purchase side j is:

△Q _j＝Q _j-Q' _j,(j＝1,2,...,n) (7)

Wherein, Q _jfor the actual electricity that lands of power purchase side j, energy metering table is held to measure by landing,

The deviation electricity price of power purchase side j is:

$L_{\mathrm{\Δj}}=\frac{\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{L}_{\mathrm{ij}}\×Q_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{L}_{\mathrm{kj}}^B\×Q_{\mathrm{kj}}^B+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{S}_{\mathrm{jk}}^B\×P_{\mathrm{jk}}^B}{\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{Q}_{\mathrm{ij}}+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{Q}_{\mathrm{kj}}^B+\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{P}_{\mathrm{jk}}^B},(j=\mathrm{1,2},...,n)---\left(8\right).$

5. the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity according to claim 1, it is characterized in that above-mentioned steps 4) in, the deviation electricity charge of settlement bargain both sides, the deviation electricity charge are that deviation electricity and deviation electricity price are long-pending, and concrete grammar is as follows:

The deviation electricity charge of power transmission side i are:

λ _i＝△P _i×S _△i,(i＝1,2,...,m) (9)

The deviation electricity charge of power purchase side j are:

μ _j＝△Q _j×L _△j,(j＝1,2,...,n) (10)。

6. the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity according to claim 1, is characterized in that above-mentioned steps 5) in, total electricity charge of settlement bargain both sides, total electricity charge are the plan electricity charge and deviation electricity charge sum, and concrete grammar is as follows:

Total electricity charge that power transmission side i collects are:

W _i＝λ _i+G′ _i,(i＝1,2,...,m) (11)

Total electricity charge that power purchase side j pays are:

V _j＝μ _j+F′ _j,(j＝1,2,...,n) (12)。

7. the power trade settlement method of district transprovincially of the independent weighting price of deviation electricity according to claim 1, it is characterized in that above-mentioned steps 6) in, clearing total transmit power takes, and total transmission charges is that the total expenses that power purchase side pays deducts the total expenses collected power transmission side, and concrete grammar is as follows:

Total transmit power expense is:

$S=\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{V}_j-\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{W}_i---\left(13\right).$