A method for tracing the electrical energy in the electricity market in power trading

Abstract

The present invention relates to the technical field of power market trading, and discloses a method for tracing the electrical energy in the power market during power trading, including tracing the electrical energy in the wholesale market and tracing the electrical energy in the retail market; the method for tracing the electrical energy in the wholesale market includes first tracing the electrical energy within the wholesale market contract, then tracing the electrical energy outside the contract for specific trading categories in the wholesale market, and finally tracing the electrical energy outside the contract for all trading categories in the wholesale market; the method for tracing the electrical energy in the retail market includes first tracing the electrical energy within the retail market contract, then tracing the electrical energy outside the contract for specific trading categories in the retail market, and finally tracing the electrical energy outside the contract for all trading categories in the retail market.

Description

Technical Field

[0001] The present invention relates to the technical field of electricity market transactions. Specifically, it is a method for tracing the electrical energy in the electricity market during electricity trading. Background Art

[0002] In the Sichuan electricity market, there are diverse electricity trading varieties and complex trading rules, which are unique among provincial electricity markets across the country. Through market data, comparative analysis is carried out around dimensions such as trading varieties, scales, structures, users, and prices, jointly witnessing the development and progress of the Sichuan electricity market with market entities. In the Sichuan electricity market, industrial and commercial electricity users who directly purchase electricity from the electricity market are collectively referred to as market-oriented industrial and commercial users. Market-oriented industrial and commercial users are further divided into two categories. One category is users who enter the market to purchase electricity, called wholesale users, and the other category purchases electricity through the agency of electricity sales companies, called retail users. How to trace the electrical energy in the electricity market during electricity trading is an urgent problem to be solved currently.

[0003] In the overall plan for the provincial electricity market transactions in Sichuan in 2022, it has been pointed out that the current method for tracing the electrical energy in the electricity market during electricity trading can no longer meet the development needs of the electricity market. Therefore, how to overcome the deficiencies of the existing technology is an urgent problem to be solved in the field of tracing the electrical energy in the electricity market currently. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for tracing the electrical energy in the electricity market during electricity trading.

[0005] The present invention is achieved through the following technical solutions: A method for tracing the electrical energy in the electricity market during electricity trading, including:

[0006] Step S1, tracing the electrical energy in the wholesale market. The tracing of the electrical energy in the wholesale market includes the tracing of the electrical energy between power plants and electricity sales companies and the tracing of the electrical energy between power plants and wholesale users. The method for tracing the electrical energy in the wholesale market includes first tracing the electrical energy within the wholesale market contracts, then tracing the electrical energy outside the contracts for specific trading categories in the wholesale market, and finally tracing the electrical energy outside the contracts for all trading categories in the wholesale market;

[0007] Step S2, tracing the electrical energy in the retail market. The tracing of the electrical energy in the retail market includes the tracing of the electrical energy between electricity sales companies and retail users. The method for tracing the electrical energy in the retail market includes tracing the electrical energy within the contracts between electricity sales companies and retail users in the retail market according to the tracing of the electrical energy between power plants and electricity sales companies in the wholesale market, then tracing the electrical energy outside the contracts for specific trading categories between electricity sales companies and retail users in the retail market, and finally tracing the electrical energy outside the contracts for all trading categories between electricity sales companies and retail users in the retail market;

[0008] Step S3, complete the electricity energy traceability of the power market by tracing the electricity energy in the wholesale market and the retail market.

[0009] To better implement the present invention, further, the method for tracing the electricity energy within the contracts between power plants and electricity selling companies in the wholesale market includes:

[0010] Step A1, calculate the associated contract electricity quantity between the market entities on the power generation side and the electricity consumption side in the wholesale market;

[0011] Step A2, calculate the pre-allocated electricity quantity between the market entities on the power generation side and the electricity consumption side in the wholesale market;

[0012] Step A3, calculate the traced electricity quantity within the contracts in the wholesale market;

[0013] Step A4, calculate the electricity quantity not traced within the contracts;

[0014] Step A5, determine whether the transaction category is retained electricity quantity or hydropower consumption demonstration. If so, conduct the electricity energy traceability outside the contracts for specific transaction categories in the wholesale market, and then conduct the electricity energy traceability outside the contracts for all transaction categories in the wholesale market. If not, directly conduct the electricity energy traceability outside the contracts for all transaction categories in the wholesale market.

[0015] To better implement the present invention, further, Step A1 includes:

[0016] Step A11, calculate the associated contract electricity quantity between the power generation and consumption parties in incremental transactions;

[0017] Step A12, calculate the contract electricity quantity to be matched between the power generation and consumption parties in non-incremental transactions;

[0018] Step A13, calculate the associated contract electricity quantity between the power generation and consumption parties in non-incremental transactions.

[0019] To better implement the present invention, further, the method for tracing the electricity energy outside the contracts for specific transaction categories between power plants and electricity selling companies in the wholesale market in Step S1 includes:

[0020] Calculate the electricity energy traceability outside the contracts for retained electricity quantity and the electricity energy traceability outside the contracts for hydropower consumption demonstration.

[0021] To better implement the present invention, further, the method for tracing the electricity energy outside the contracts for all transaction categories between power plants and electricity selling companies in the wholesale market includes:

[0022] Statistically analyze the electricity quantity to be traced outside the contracts for all transaction categories on the power generation side and the electricity consumption side, and calculate the traced electricity quantity outside the contracts for all transaction categories.

[0023] To better implement the present invention, further, the method for tracing the electricity energy within the contracts between electricity selling companies and retail users in the retail market includes:

[0024] Step B1, calculate the pre-allocated electricity quantities on the electricity seller side and the retail user side; Step B2, calculate the contract-in traceable electricity quantities.

[0025] Step B3, calculate the electricity quantities not traceable within the contract.

[0026] Step B4, determine whether the transaction category is a hydropower consumption demonstration. If so, conduct the off-contract electricity energy traceability for the specific transaction category in the retail market, and then conduct the off-contract electricity energy traceability for all transaction categories in the retail market. If not, directly conduct the off-contract electricity energy traceability for all transaction categories in the retail market.

[0027] To better implement the present invention, further, the method for conducting off-contract electricity energy traceability for specific transaction categories between the electricity seller and the retail user in the retail market includes:

[0028] Calculate the off-contract traceable electricity quantities for the hydropower consumption demonstration contract.

[0029] To better implement the present invention, further, the method for conducting off-contract electricity energy traceability for all transaction categories between the electricity seller and the retail user in the retail market includes:

[0030] Statistically count the off-contract electricity quantities to be traced for all transaction categories on the electricity seller side and the retail user side, and calculate the off-contract traceable electricity quantities for all transaction categories.

[0031] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0032] (1) The present invention can solve the problem of electricity energy traceability in the power market by tracing electricity energy in the wholesale market and the retail market.

[0033] (2) The present invention establishes an electricity energy traceability model to clarify the specific power plants from which the electricity consumption of power users comes and quantitatively obtain the electricity quantities supplied by the power plants to these power users.

[0034] (3) Based on the contract electricity quantities between the market entities on the power generation side and the power consumption side formed in the power market transaction, as well as the settlement electricity quantities of the market entities on the power generation side and the power consumption side, the present invention establishes a quantitative correspondence relationship between the electricity consumption of power users and the electricity generation of power plants.

[0035] (4) By establishing an electricity energy traceability model for the power market, the present invention clarifies the specific power plants from which the electricity consumption of power users comes and the electricity quantities supplied by the power plants to these power users, providing a reliable basis for quantitatively obtaining the electricity quantities of various types of power sources consumed by power users and the proportion of clean energy electricity, and at the same time providing key data support for accurately depicting the carbon footprint of power users. Description of the Drawings

[0036] The present invention will be further described in conjunction with the following drawings and embodiments. All innovative concepts of the present invention should be regarded as the disclosed content and the protection scope of the present invention.

[0037] Figure 1 It is a schematic flow chart of a method for tracing the electrical energy in the electricity market in power trading provided by the present invention.

[0038] Figure 2 It is a schematic structural diagram between the wholesale market and the retail market in power trading provided by the present invention. Detailed implementation manners

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and therefore should not be regarded as a limitation of the protection scope. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0040] In the description of the present invention, it should be noted that the tracing period is in principle the settlement month (from the 26th of the previous month to the 25th of this month). After the official settlement statement is issued, the electrical energy tracing will be carried out monthly.

[0041] Compared with other trading varieties in the Sichuan electricity market, the two trading varieties of retained electricity and hydropower consumption demonstration have obvious regional characteristics, that is, the retained electricity and hydropower consumption demonstration transactions can only be carried out between power users and power generation enterprises in specific regions. Therefore, for the retained electricity and hydropower consumption demonstration transaction electricity that is not traced within the contract on the power generation and consumption sides, priority is given to matching and tracing within the regions where the market entities on the power generation and consumption sides are located, that is, to carry out the off-contract electrical energy tracing for the retained electricity and hydropower consumption demonstration. After carrying out the off-contract electrical energy tracing for the retained electricity and hydropower consumption demonstration, if there is still untraced electricity, it will be traced together with other untraced electricity for the off-contract electrical energy tracing of all trading categories.

[0042] Embodiment 1:

[0043] A method for tracing the electrical energy in the electricity market in power trading in this embodiment, as Figure 1 - Figure 2 shown, includes the following steps:

[0044] Step S1: Trace the electricity energy in the wholesale market. The electricity energy tracing in the wholesale market includes the tracing between power plants and electricity selling companies and the tracing between power plants and wholesale users. The method for tracing the electricity energy in the wholesale market includes first tracing the electricity energy within the wholesale market contracts, then tracing the electricity energy outside the contracts for specific transaction categories in the wholesale market, and finally tracing the electricity energy outside the contracts for all transaction categories in the wholesale market.

[0045] Step S2: Trace the electricity energy in the retail market. The electricity energy tracing in the retail market includes the tracing between electricity selling companies and retail users. The method for tracing the electricity energy in the retail market includes, based on the electricity energy tracing between power plants and electricity selling companies in the wholesale market, tracing the electricity energy within the contracts between electricity selling companies and retail users in the retail market, then tracing the electricity energy outside the contracts for specific transaction categories between electricity selling companies and retail users in the retail market, and finally tracing the electricity energy outside the contracts for all transaction categories between electricity selling companies and retail users in the retail market.

[0046] Step S3: Complete the electricity energy tracing in the power market by tracing the electricity energy in the wholesale market and the electricity energy in the retail market.

[0047] In addition, the tracing of the electricity energy outside the retained electricity contract and the tracing of the electricity energy outside the hydropower consumption demonstration contract are specific in Sichuan. Other electricity energy transaction tracings similar to the tracing of the electricity energy outside the retained electricity contract and the tracing of the electricity energy outside the hydropower consumption demonstration contract in other provinces are also within the protection scope of the present invention. The present invention establishes an electricity energy tracing model to clarify the specific power plants from which the electricity consumption of power users comes and quantitatively obtain the electricity quantity supplied by the power plants to the power users.

[0048] Embodiment 2:

[0049] On the basis of Embodiment 1, this embodiment is further optimized by calculating the associated contract electricity quantity between the power generation side and the power consumption side in the wholesale market. The associated contract electricity quantity is the establishment of the contract electricity quantity association relationship between the market entities on the power generation and consumption sides after they carry out electricity energy increment transactions, contract electricity quantity transfer transactions, and contract bilateral reduction transactions. The associated contract electricity quantity is divided into: the associated contract electricity quantity of both the power generation and consumption sides in the increment transaction, the associated contract electricity quantity of both the power generation and consumption sides in the non-increment transaction, and the associated contract electricity quantity of both the power generation and consumption sides.

[0050] In the associated contract electricity of the incremental transaction between the power generation side and the power consumption side, for the electricity quantity increment contract a signed between the power generation side entity i and the power consumption side entity j, after the power generation side entity i and the power consumption side entity j respectively conduct contract electricity transfer out and bilateral contract reduction transactions, the contract electricity of contract a held by the power generation side entity i and the power consumption side entity j is as follows: The contract electricity of contract a held by the power generation side entity i = the contract electricity of the electricity quantity increment contract a signed by the power generation side entity i - the contract electricity of contract a transferred out by the power generation side entity i - the contract electricity of contract a reduced by the power generation side entity i; The contract electricity of contract a held by the power consumption side entity j = the contract electricity of the electricity quantity increment contract a signed by the power consumption side entity j - the contract electricity of contract a transferred out by the power consumption side entity j - the contract electricity of contract a reduced by the power consumption side entity j; Among them: The power generation side entity i includes the part of the hydropower enterprises directly dispatched by the Southwest Sub - center of the State Power Dispatching Center (hereinafter referred to as "Southwest Grid Dispatching") that were incorporated into the Sichuan main grid before the end of 2021, the run - of - river hydropower directly dispatched by the Sichuan Electric Power Dispatching and Control Center (hereinafter referred to as "Provincial Dispatching"), the non - run - of - river hydropower directly dispatched by Southwest Grid Dispatching and Provincial Dispatching, and wind power and photovoltaic power generation enterprises; The power consumption side entity j includes power sales companies that directly purchase electricity from the wholesale market and market - oriented industrial and commercial users. The associated relationship of contract a held between the power generation side entity i and the power consumption side entity j is: The associated contract electricity of incremental contract a between the power generation side entity i and the power consumption side entity j = min (the contract electricity of contract a held by the power generation side entity i, the contract electricity of contract a held by the power consumption side entity j); The contract electricity of contract a to be matched by the power generation side entity i = the contract electricity of contract a held by the power generation side entity i - the associated contract electricity of incremental contract a between the power generation side entity i and the power consumption side entity j; The contract electricity of contract a to be matched by the power consumption side entity j = the contract electricity of contract a held by the power consumption side entity j - the associated contract electricity of incremental contract a between the power generation side entity i and the power consumption side entity j.

[0051] The associated contract electricity of the non - incremental transaction between the power generation side and the power consumption side: For the power generation side entity i and the power consumption side entity j that have not signed the electricity quantity increment contract a, the contract electricity of contract a to be matched by the power generation side entity i and the power consumption side entity j is: The contract electricity of contract a to be matched by the power generation side entity i = the contract electricity of contract a transferred into by the power generation side entity i - the contract electricity of contract a transferred out by the power generation side entity i - the contract electricity of contract a reduced by the power generation side entity i; The contract electricity of contract a to be matched by the power consumption side entity j = the contract electricity of contract a transferred into by the power consumption side entity j - the contract electricity of contract a transferred out by the power consumption side entity j - the contract electricity of contract a reduced by the power consumption side entity j; For the associated matching of the contract electricity to be matched on the power generation and consumption sides, their associated relationship of holding the transaction contract a is: ① When ∑ i The contract electricity of contract a to be matched by the power generation side entity i ≤ ∑ j The contract electricity of contract a to be matched by the power consumption side entity j: The associated contract electricity of non - incremental contract a between the power generation side entity i and the power consumption side entity j = the contract electricity of contract a to be matched by the power generation side entity i * the contract electricity of contract a to be matched by the power consumption side entity j / ∑ jThe contract electricity quantity of the electricity-consuming side entity j to be matched with contract a; ② When ∑ i The contract electricity quantity of the power generation side entity i to be matched with contract a > ∑ j The contract electricity quantity of the electricity-consuming side entity j to be matched with contract a: The non-incremental contract a associated electricity quantity between the power generation side entity i and the electricity-consuming side entity j = The contract electricity quantity of the electricity-consuming side entity j to be matched with contract a * The contract electricity quantity of the power generation side entity i to be matched with contract a / ∑ i The contract electricity quantity of the power generation side entity i to be matched with contract a.

[0052] Among the associated electricity quantities of the power generation and electricity-consuming sides: The transaction category k associated electricity quantity between the power generation side entity i and the electricity-consuming side entity j = ∑ a (The transaction category k incremental contract a associated electricity quantity between the power generation side entity i and the electricity-consuming side entity j + The transaction category k non-incremental contract a associated electricity quantity between the power generation side entity i and the electricity-consuming side entity j); where: The transaction category k includes 11 categories: Retained electricity in Ganzi, Retained electricity in Aba, Retained electricity in Liangshan, Hydropower consumption demonstration in Ganzi, Hydropower consumption demonstration in Aba, Hydropower consumption demonstration in Liangshan, Hydropower consumption demonstration in Panzhihua, Hydropower consumption demonstration in Ya'an, Hydropower consumption demonstration in Leshan, All-wind-and-solar high-energy-consuming, Other trading varieties (including conventional direct purchase, strategic long-term agreement, surplus electricity during the wet season, and electricity substitution).

[0053] In this embodiment, the pre-allocated electricity quantities of the power generation side and the electricity-consuming side in the wholesale market are calculated. Among them, the pre-allocated electricity quantity is the electricity quantity distributed proportionally to the settlement electricity quantities of the power generation and electricity-consuming side market entities according to the proportions of the associated electricity quantities between the power generation and electricity-consuming side market entities in the contract electricity quantities held by the power generation and electricity-consuming side market entities. The pre-allocated electricity quantity on the power generation side is the pre-allocated electricity quantity of the power generation side of the transaction category k between the power generation side entity i and the electricity-consuming side entity j = The settlement electricity quantity of the transaction category k of the power generation side entity i * The associated electricity quantity of the transaction category k between the power generation side entity i and the electricity-consuming side entity j / The contract electricity quantity of the transaction category k held by the power generation side entity i; where: The contract electricity quantity of the transaction category k held by the power generation side entity i = ∑ a The contract electricity quantity of the transaction contract a of the transaction category k held by the power generation side entity i. The pre-allocated electricity quantity on the electricity-consuming side is the pre-allocated electricity quantity of the electricity-consuming side of the transaction category k between the power generation side entity i and the electricity-consuming side entity j = The settlement electricity quantity of the transaction category k of the electricity-consuming side entity j * The associated electricity quantity of the transaction category k between the power generation side entity i and the electricity-consuming side entity j / The contract electricity quantity of the transaction category k held by the electricity-consuming side entity j; where: The contract electricity quantity of the transaction category k held by the electricity-consuming side entity j = ∑ a The contract electricity quantity of the transaction contract a of the transaction category k held by the electricity-consuming side entity j. The associated electricity quantities between the hydropower plant H1, wind power plant W1 and the wholesale user P1, electricity sales company S1 in a certain month are as follows:

[0054]

[0055] The total contract electricity quantities of other trading varieties for hydropower plant H1, wind power plant W1, wholesale user P1, and electricity sales company S1 are as follows: Unit: 10,000 kWh

[0056]

[0057] The settled electricity quantities of other trading varieties for hydropower plant H1 and wind power plant W1 are as follows: Unit: 10,000 kWh

[0058]

[0059] The settled electricity quantities of other trading varieties for electricity sales company S1 and wholesale user P1 are as follows: Unit: 10,000 kWh

[0060]

[0061] The process of calculating the pre-allocated electricity quantities on the power generation side and the electricity consumption side in the wholesale market is as follows. First, calculate the pre-allocated electricity quantity on the power generation side:

[0062] The pre-allocated electricity quantity on the power generation side of other trading varieties between hydropower plant H1 and wholesale user P1 = The settled electricity quantity of other trading varieties of hydropower plant H1 * The associated contract electricity quantity of other trading varieties between hydropower plant H1 and wholesale user P1 / The contract electricity quantity of other trading varieties held by hydropower plant H1 = 2200 * 300 / 2000 = 330 10,000 kWh; The pre-allocated electricity quantity on the power generation side of other trading varieties between hydropower plant H1 and electricity sales company S1 = The settled electricity quantity of other trading varieties of hydropower plant H1 * The associated contract electricity quantity of other trading varieties between hydropower plant H1 and electricity sales company S1 / The contract electricity quantity of other trading varieties held by hydropower plant H1 = 2200 * 400 / 2000 = 440 10,000 kWh; The pre-allocated electricity quantity on the power generation side of other trading varieties between wind power plant W1 and wholesale user P1 = The settled electricity quantity of other trading varieties of wind power plant W1 * The associated contract electricity quantity of other trading varieties between wind power plant W1 and wholesale user P1 / The contract electricity quantity of other trading varieties held by wind power plant W1 = 900 * 430 / 1000 = 387 10,000 kWh; The pre-allocated electricity quantity on the power generation side of other trading varieties between wind power plant W1 and electricity sales company S1 = The settled electricity quantity of other trading varieties of wind power plant W1 * The associated contract electricity quantity of other trading varieties between wind power plant W1 and electricity sales company S1 / The contract electricity quantity of other trading varieties held by wind power plant W1 = 900 * 350 / 1000 = 315 10,000 kWh.

[0063] Recalculate the pre-allocated electricity consumption on the electricity consumption side: The pre-allocated electricity consumption on the electricity consumption side for other trading varieties between hydropower plant H1 and wholesale user P1 = The settlement electricity consumption of other trading varieties of wholesale user P1 * The associated contract electricity consumption of other trading varieties between hydropower plant H1 and wholesale user P1 / The contract electricity consumption of other trading varieties held by wholesale user P1 = 1000 * 300 / 1200 = 2.5 million kWh; The pre-allocated electricity consumption on the electricity consumption side for other trading varieties between hydropower plant H1 and electricity sales company S1 = The settlement electricity consumption of other trading varieties of electricity sales company P1 * The associated contract electricity consumption of other trading varieties between hydropower plant H1 and electricity sales company S1 / The contract electricity consumption of other trading varieties held by electricity sales company S1 = 880 * 400 / 800 = 4.4 million kWh; The pre-allocated electricity consumption on the electricity consumption side for other trading varieties between wind power plant W1 and wholesale user P1 = The settlement electricity consumption of other trading varieties of wholesale user P1 * The associated contract electricity consumption of other trading varieties between wind power plant W1 and wholesale user P1 / The contract electricity consumption of other trading varieties held by wholesale user P1 = 1000 * 430 / 1200 = 3.58 million kWh; The pre-allocated electricity consumption on the electricity consumption side for other trading varieties between wind power plant W1 and electricity sales company S1 = The settlement electricity consumption of other trading varieties of electricity sales company S1 * The associated contract electricity consumption of other trading varieties between wind power plant W1 and electricity sales company S1 / The contract electricity consumption of other trading varieties held by electricity sales company S1 = 880 * 350 / 800 = 3.85 million kWh.

[0064] Calculate the traceable electricity within the wholesale market contract. The traceable electricity within the contract is the traceable electricity within the scope of the associated contract electricity between the power generation side and the electricity consumption side. The traceable electricity within the contract for trading category k between power generation side entity i and electricity consumption side entity j = min (the associated contract electricity consumption of trading category k between power generation side entity i and electricity consumption side entity j, the pre-allocated electricity consumption on the power generation side of trading category k between power generation side entity i and electricity consumption side entity j, the pre-allocated electricity consumption on the electricity consumption side of trading category k between power generation side entity i and electricity consumption side entity j).

[0065] The process of calculating the traceable electricity within the contract is as follows: The traceable electricity within the contract for other trading varieties between hydropower plant H1 and wholesale user P1 = min(the associated contract electricity for other trading varieties between hydropower plant H1 and wholesale user P1, the pre-allocated electricity on the power generation side for other trading varieties between hydropower plant H1 and wholesale user P1, the pre-allocated electricity on the power consumption side for other trading varieties between hydropower plant H1 and wholesale user P1) = min(300, 330, 250) = 2.5 million kWh; The traceable electricity within the contract for other trading varieties between hydropower plant H1 and electricity sales company S1 = min(the associated contract electricity for other trading varieties between hydropower plant H1 and electricity sales company S1, the pre-allocated electricity on the power generation side for other trading varieties between hydropower plant H1 and electricity sales company S1, the pre-allocated electricity on the power consumption side for other trading varieties between hydropower plant H1 and electricity sales company S1) = min(400, 440, 440) = 4 million kWh; The traceable electricity within the contract for other trading varieties between wind power plant W1 and wholesale user P1 = min(the associated contract electricity for other trading varieties between wind power plant W1 and wholesale user P1, the pre-allocated electricity on the power generation side for other trading varieties between wind power plant W1 and wholesale user P1, the pre-allocated electricity on the power consumption side for other trading varieties between wind power plant W1 and wholesale user P1) = min(430, 387, 358) = 3.58 million kWh; The traceable electricity within the contract for other trading varieties between wind power plant W1 and electricity sales company S1 = min(the associated contract electricity for other trading varieties between wind power plant W1 and electricity sales company S1, the pre-allocated electricity on the power generation side for other trading varieties between wind power plant W1 and electricity sales company S1, the pre-allocated electricity on the power consumption side for other trading varieties between wind power plant W1 and electricity sales company S1) = min(350, 315, 385) = 3.15 million kWh.

[0066] In calculating the traceable electricity not within the contract, the untraced electricity on the power generation side for trading category k between power generation side entity i and power consumption side entity j = the pre-allocated electricity on the power generation side for trading category k between power generation side entity i and power consumption side entity j - the traceable electricity within the contract for trading category k between power generation side entity i and power consumption side entity j; The untraced electricity on the power consumption side for trading category k between power generation side entity i and power consumption side entity j = the pre-allocated electricity on the power consumption side for trading category k between power generation side entity i and power consumption side entity j - the traceable electricity within the contract for trading category k between power generation side entity i and power consumption side entity j.

[0067] When calculating the traced-back electricity quantity not covered by the contract, for the traced-back electricity quantity not covered by the contract on the power generation side: The traced-back electricity quantity not covered by the contract on the power generation side for other trading categories between hydropower plant H1 and wholesale user P1 = The pre-allocated electricity quantity on the power generation side for other trading categories between hydropower plant H1 and wholesale user P1 - The traced-back electricity quantity covered by the contract for other trading categories between hydropower plant H1 and wholesale user P1 = 330 - 250 = 800,000 kWh; The traced-back electricity quantity not covered by the contract on the power generation side for other trading categories between hydropower plant H1 and electricity sales company S1 = The pre-allocated electricity quantity on the power generation side for other trading categories between hydropower plant H1 and electricity sales company S1 - The traced-back electricity quantity covered by the contract for other trading categories between hydropower plant H1 and electricity sales company S1 = 440 - 400 = 400,000 kWh; The traced-back electricity quantity not covered by the contract on the power generation side for other trading categories between wind power plant W1 and wholesale user P1 = The pre-allocated electricity quantity on the power generation side for other trading categories between wind power plant W1 and wholesale user P1 - The traced-back electricity quantity covered by the contract for other trading categories between wind power plant W1 and wholesale user P1 = 387 - 358 = 290,000 kWh; The traced-back electricity quantity not covered by the contract on the power generation side for other trading categories between wind power plant W1 and electricity sales company S1 = The pre-allocated electricity quantity on the power generation side for other trading categories between wind power plant W1 and electricity sales company S1 - The traced-back electricity quantity covered by the contract for other trading categories between wind power plant W1 and electricity sales company S1 = 315 - 315 = 0 kWh.

[0068] When the traced-back electricity quantity not covered by the contract on the power consumption side: The traced-back electricity quantity not covered by the contract on the power consumption side for other trading categories between hydropower plant H1 and wholesale user P1 = The pre-allocated electricity quantity on the power consumption side for other trading categories between hydropower plant H1 and wholesale user P1 - The traced-back electricity quantity covered by the contract for other trading categories between hydropower plant H1 and wholesale user P1 = 250 - 250 = 0 kWh; The traced-back electricity quantity not covered by the contract on the power consumption side for other trading categories between hydropower plant H1 and electricity sales company S1 = The pre-allocated electricity quantity on the power consumption side for other trading categories between hydropower plant H1 and electricity sales company S1 - The traced-back electricity quantity covered by the contract for other trading categories between hydropower plant H1 and electricity sales company S1 = 440 - 400 = 400,000 kWh; The traced-back electricity quantity not covered by the contract on the power consumption side for other trading categories between wind power plant W1 and wholesale user P1 = The pre-allocated electricity quantity on the power consumption side for other trading categories between wind power plant W1 and wholesale user P1 - The traced-back electricity quantity covered by the contract for other trading categories between wind power plant W1 and wholesale user P1 = 358 - 358 = 0 kWh; The traced-back electricity quantity not covered by the contract on the power consumption side for other trading categories between wind power plant W1 and electricity sales company S1 = The pre-allocated electricity quantity on the power consumption side for other trading categories between wind power plant W1 and electricity sales company S1 - The traced-back electricity quantity covered by the contract for other trading categories between wind power plant W1 and electricity sales company S1 = 385 - 315 = 700,000 kWh; For other trading categories, the calculation methods for the traced-back electricity quantity covered by the contract and the traced-back electricity quantity not covered by the contract on the power generation and consumption sides are the same as those for other trading categories.

[0069] Other parts of this embodiment are the same as those of Embodiment 1, so they will not be elaborated here.

[0070] Example 3:

[0071] This example further optimizes on the basis of the above Example 1 or 2. In this example, the calculation method for the associated contract electricity quantity between the power generation side and the power consumption side in the wholesale market is as follows:

[0072] In the contract association relationship within the traceability of the electricity energy within the wholesale market contract, the hydropower plant H1 signed an additional contract a with the electricity selling company S1 with a contract electricity quantity of 1 million kWh. The hydropower plant H2 signed an additional contract b with the electricity selling company S2 with a contract electricity quantity of 0.5 million kWh. The hydropower plant H1 transferred 0.2 million kWh of the contract a electricity quantity to the hydropower plant H2, and the hydropower plant H1 transferred 0.1 million kWh of the contract a electricity quantity to the hydropower plant H3. The electricity selling company S2 transferred 0.2 million kWh of the contract b electricity quantity to the electricity selling company S3. The hydropower plant H2 and the electricity selling company S1 used contract b and contract a respectively to carry out a cross-side contract electricity quantity reduction of 0.1 million kWh.

[0073] Calculate the associated contract electricity quantity between the two sides of the incremental transaction: The electricity quantity of the additional contract a held by the hydropower plant H1 = 1 - 0.2 - 0.1 = 0.7 million kWh; The electricity quantity of the additional contract a held by the electricity selling company S1 = 1 - 0.1 = 0.9 million kWh; The associated contract electricity quantity of the additional contract a between the hydropower plant H1 and the electricity selling company S1 = min (the electricity quantity of the additional contract a held by the hydropower plant H1, the electricity quantity of the additional contract a held by the electricity selling company S1) = min (0.7, 0.9) = 0.7 million kWh; The electricity quantity of the additional contract b held by the hydropower plant H2 = 0.5 - 0.1 = 0.4 million kWh; The electricity quantity of the additional contract b held by the electricity selling company S2 = 0.5 - 0.2 = 0.3 million kWh; The associated contract electricity quantity of the additional contract b between the hydropower plant H2 and the electricity selling company S2 = min (the electricity quantity of the additional contract b held by the hydropower plant H2, the electricity quantity of the additional contract b held by the electricity selling company S2) = min (0.4, 0.3) = 0.3 million kWh.

[0074] It should be noted that there seems to be an error in the original text where the unit of electricity quantity in the description of "100 million kWh" in item [8] is likely incorrect. It is guessed that it should be "1 million kWh" according to the subsequent calculation. The translation is adjusted accordingly. If there are other special requirements or corrections, please let me know.The calculation process for the contract electricity quantity to be matched of non-incremental trading power generation and consumption parties for Contract A is as follows: The contract electricity quantity of Hydropower Plant H1 to be matched for other trading varieties of Contract A = The contract electricity quantity of Hydropower Plant H1 for other trading varieties of incremental Contract A - The associated contract electricity quantity of incremental Contract A between Hydropower Plant H1 and Power Sales Company S1 = 70 - 70 = 0; The contract electricity quantity of Hydropower Plant H2 to be matched for other trading varieties of Contract A = The contract electricity quantity transferred by Hydropower Plant H2 for other trading varieties of Contract A = 200,000 kWh; The contract electricity quantity of Hydropower Plant H3 to be matched for other trading varieties of Contract A = The contract electricity quantity transferred by Hydropower Plant H3 for other trading varieties of Contract A = 100,000 kWh; The contract electricity quantity of Power Sales Company S1 to be matched for other trading varieties of Contract A = The contract electricity quantity of Power Sales Company S1 for other trading varieties of incremental Contract A - The associated contract electricity quantity of incremental Contract A between Hydropower Plant H1 and Power Sales Company S1 = 90 - 70 = 200,000 kWh.

[0075] The calculation process for the contract electricity quantity to be matched of non-incremental trading power generation and consumption parties for Contract B is as follows: The contract electricity quantity of Hydropower Plant H2 to be matched for other trading varieties of Contract B = The contract electricity quantity of Hydropower Plant H2 for other trading varieties of incremental Contract B - The associated contract electricity quantity of incremental Contract B between Hydropower Plant H2 and Power Sales Company S2 = 40 - 30 = 100,000 kWh; The contract electricity quantity of Power Sales Company S2 to be matched for other trading varieties of Contract B = The contract electricity quantity of Power Sales Company S2 for other trading varieties of incremental Contract B - The associated contract electricity quantity of incremental Contract B between Hydropower Plant H2 and Power Sales Company S2 = 30 - 30 = 0; The contract electricity quantity of Power Sales Company S3 to be matched for other trading varieties of Contract B = The contract electricity quantity transferred by Power Sales Company S3 for other trading varieties of Contract B = 200,000 kWh.

[0076] The calculation process of the associated contract electricity quantity of non-incremental trading power generation and consumption parties for contract a is as follows: The contract electricity quantity of the power generation side's to-be-matched contract a = 0 + 20 + 10 = 300,000 kWh; The contract electricity quantity of the electricity consumption side's to-be-matched contract a = 200,000 kWh; The contract electricity quantity of the power generation side's to-be-matched contract a > The contract electricity quantity of the electricity consumption side's to-be-matched contract a; The associated contract electricity quantity of non-incremental contract a for other trading varieties between hydropower plant H3 and electricity sales company S1 = The contract electricity quantity of electricity sales company S1's to-be-matched other trading varieties contract a * The contract electricity quantity of hydropower plant H3's to-be-matched other trading varieties contract a / (The contract electricity quantity of hydropower plant H3's to-be-matched other trading varieties contract a + The contract electricity quantity of hydropower plant H2's to-be-matched other trading varieties contract a) = 20 * 10 / (10 + 20) = 66,700 kWh; The associated contract electricity quantity of non-incremental contract a for other trading varieties between hydropower plant H2 and electricity sales company S1 = The contract electricity quantity of electricity sales company S1's to-be-matched other trading varieties contract a * The contract electricity quantity of hydropower plant H2's to-be-matched other trading varieties contract a / (The contract electricity quantity of hydropower plant H3's to-be-matched other trading varieties contract a + The contract electricity quantity of hydropower plant H2's to-be-matched other trading varieties contract a) = 20 * 20 / (10 + 20) = 133,300 kWh.

[0077] The process of calculating the associated contract electricity quantity of non-incremental trading power generation and consumption parties for contract b is as follows: The contract electricity quantity of the power generation side's to-be-matched contract b = 100,000 kWh; The contract electricity quantity of the electricity consumption side's to-be-matched contract a = 0 + 20 = 200,000 kWh; The contract electricity quantity of the power generation side's to-be-matched contract a < The contract electricity quantity of the electricity consumption side's to-be-matched contract a; The associated contract electricity quantity of non-incremental contract b for other trading varieties between hydropower plant H2 and electricity sales company S3 = The contract electricity quantity of hydropower plant H2's to-be-matched other trading varieties contract b * The contract electricity quantity of electricity sales company S3's to-be-matched other trading varieties contract b / (The contract electricity quantity of electricity sales company S3's to-be-matched other trading varieties contract b + The contract electricity quantity of electricity sales company S2's to-be-matched other trading varieties contract b) = 10 * 20 / (20 + 0) = 100,000 kWh.

[0078] In this embodiment, the associated contract electricity quantity between the power generation side and the electricity consumption side in the wholesale market is calculated by calculating the associated contract electricity quantity of incremental trading power generation and consumption parties, calculating the to-be-matched contract electricity quantity of non-incremental trading power generation and consumption parties, and calculating the associated contract electricity quantity of non-incremental trading power generation and consumption parties.

[0079] Other parts of this embodiment are the same as those of the above Embodiment 1 or 2, so they will not be elaborated here.

[0080] Embodiment 4:

[0081] This embodiment is further optimized on the basis of any one of the above embodiments 1-3. In this embodiment, the process of tracing the external power energy of the retained electricity contract is as follows: When the transaction category k is the retained electricity, the retained electricity that has not been traced within the contract on the power generation and consumption sides is preferentially matched and traced within the state. ① When ∑ j The retained electricity in state z that has not been traced within the contract by the electricity consumption side entity j ≤ ∑ i The retained electricity in state z that has not been traced within the contract by the power generation side entity i: The retained electricity traced outside the contract in state z between the power generation side entity i and the electricity consumption side entity j = The retained electricity in state z that has not been traced within the contract by the electricity consumption side entity j * The retained electricity in state z that has not been traced within the contract by the power generation side entity i / ∑ i The retained electricity in state z that has not been traced within the contract by the power generation side entity i; where: State z is the state where the retained electricity transaction is located, which is Ganzi Prefecture, Aba Prefecture or Liangshan Prefecture. ② When the retained electricity in Ganzi that has not been traced within the contract by the electricity consumption side > the retained electricity in Ganzi that has not been traced within the contract by the power generation side. The specific calculation method in ① is: In the tracing of the external power energy of the retained electricity contract in the wholesale market, the retained electricity in Ganzi that has not been traced within the contract by the electricity consumption side ≤ the retained electricity in Ganzi that has not been traced within the contract by the power generation side. For example: In a certain month, the electricity volume of the retained electricity in Ganzi that has not been traced within the contract by the retail user L1 is 600,000 kWh, the electricity volume of the retained electricity in Ganzi that has not been traced within the contract by the wholesale user P2 is 400,000 kWh, the electricity volume of the retained electricity in Ganzi that has not been traced within the contract by the hydropower plant H3 is 500,000 kWh, and the electricity volume of the retained electricity in Ganzi that has not been traced within the contract by the hydropower plant H4 is 700,000 kWh.

[0082] When ∑ j The retained electricity in state z that has not been traced within the contract by the electricity consumption side entity j > ∑ i The retained electricity in state z that has not been traced within the contract by the power generation side entity i within state z:

[0083] The retained electricity traced outside the contract in state z between the power generation side entity i and the electricity consumption side entity j = The retained electricity in state z that has not been traced within the contract by the power generation side entity i * The retained electricity in state z that has not been traced within the contract by the electricity consumption side entity j within state z / ∑ j The retained electricity in state z that has not been traced within the contract by the electricity consumption side entity j;

[0084] An example of the calculation process for preferentially matching and tracing the electricity quantities retained on the power generation and consumption sides that are not traced within the contract within the state is as follows: The electricity quantity retained on the consumption side in Ganzi that is not traced within the contract = 60 + 40 = 1 million kWh; The electricity quantity retained on the power generation side in Ganzi that is not traced within the contract = 50 + 70 = 1.2 million kWh; The electricity quantity retained on the consumption side in Ganzi that is not traced within the contract < The electricity quantity retained on the power generation side in Ganzi that is not traced within the contract; The electricity quantity retained outside the contract in Ganzi between hydropower plant H3 and retail user L1 = 60 * 50 / (50 + 70) = 0.25 million kWh; The electricity quantity retained outside the contract in Ganzi between hydropower plant H4 and retail user L1 = 60 * 70 / (50 + 70) = 0.35 million kWh; The electricity quantity retained outside the contract in Ganzi between hydropower plant H3 and wholesale user P2 = 40 * 50 / (50 + 70) = 0.1667 million kWh; The electricity quantity retained outside the contract in Ganzi between hydropower plant H4 and wholesale user P2 = 40 * 70 / (50 + 70) = 0.2333 million kWh.

[0085] An example of the calculation process for calculating the electricity quantity retained in Ganzi that is not traced is as follows: After preferentially matching and tracing within the state, the remaining electricity quantities retained on the power generation and consumption sides that are not traced are as follows: The electricity quantity retained in Ganzi that is not traced for hydropower plant H3 = 50 - 25 - 16.67 = 8.33 kWh, The electricity quantity retained in Ganzi that is not traced for hydropower plant H4 = 70 - 35 - 23.33 = 11.67 kWh, The electricity quantity retained in Ganzi that is not traced for retail user L1 = 60 - 25 - 35 = 0, The electricity quantity retained in Ganzi that is not traced for wholesale user P2 = 40 - 16.67 - 23.33 = 0. The electricity quantity retained that is not traced, together with the electricity quantities not traced in other categories, is subject to tracing of the electricity energy outside the contract for all trading categories in the wholesale market.

[0086] The tracing of the electricity energy outside the contract for the hydropower consumption demonstration means that when the trading category k is the hydropower consumption demonstration, the hydropower consumption demonstration electricity quantities on the power generation and consumption sides that are not traced within the contract are preferentially matched and traced within this demonstration area.

[0087] 1) When ∑ j The hydropower consumption demonstration electricity quantity of consumption-side entity j not traced within the contract in the q demonstration area ≤ ∑ i The hydropower consumption demonstration electricity quantity of power-generation-side entity i not traced within the contract in the q demonstration area: The electricity quantity of the hydropower consumption demonstration traced outside the contract within the q demonstration area between power-generation-side entity i and consumption-side entity j = The hydropower consumption demonstration electricity quantity of consumption-side entity j not traced within the contract in the q demonstration area * The hydropower consumption demonstration electricity quantity of power-generation-side entity i not traced within the contract in the q demonstration area / ∑ i The hydropower consumption demonstration electricity quantity of power-generation-side entity i not traced within the contract in the q demonstration area where: q demonstration area is the demonstration area where the hydropower consumption demonstration transaction is located, which is Ganzi Prefecture, Aba Prefecture, Liangshan Prefecture, Panzhihua City, Ya'an City or Leshan City, the same below.

[0088] For example: The non - contract - traced hydropower consumption demonstration electricity in Ganzi for power sales company S1 is 600,000 kWh, the non - contract - traced hydropower consumption demonstration electricity in Ganzi for wholesale user P2 is 400,000 kWh, the non - contract - traced hydropower consumption demonstration electricity in Ganzi for hydropower plant H3 is 500,000 kWh, and the non - contract - traced hydropower consumption demonstration electricity in Ganzi for hydropower plant H4 is 700,000 kWh. For the hydropower consumption demonstration electricity on the power generation and consumption sides that is not traced within the contract, priority is given to matching the traceability; the non - contract - traced hydropower consumption demonstration electricity in Ganzi on the consumption side = 60 + 40 = 1,000,000 kWh. The non - contract - traced hydropower consumption demonstration electricity in Ganzi on the power generation side = 50 + 70 = 1,200,000 kWh. The non - contract - traced hydropower consumption demonstration electricity in Ganzi on the consumption side < the non - contract - traced hydropower consumption demonstration electricity in Ganzi on the power generation side; the out - of - contract traced hydropower consumption demonstration electricity in Ganzi between hydropower plant H3 and power sales company S1 = 60 * 50 / (50 + 70)=250,000 kWh. The out - of - contract traced hydropower consumption demonstration electricity in Ganzi between hydropower plant H4 and power sales company S1 = 60 * 70 / (50 + 70)=350,000 kWh. The out - of - contract traced hydropower consumption demonstration electricity in Ganzi between hydropower plant H3 and wholesale user P2 = 40 * 50 / (50 + 70)≈166,700 kWh. The out - of - contract traced hydropower consumption demonstration electricity in Ganzi between hydropower plant H4 and wholesale user P2 = 40 * 70 / (50 + 70)≈233,300 kWh. Calculate the non - traced hydropower consumption demonstration electricity in Ganzi: The non - traced hydropower consumption demonstration electricity in Ganzi for hydropower plant H3 = 50 - 25 - 16.67 = 8.33 kWh, the non - traced hydropower consumption demonstration electricity in Ganzi for hydropower plant H4 = 70 - 35 - 23.33 = 11.67 kWh; the non - traced hydropower consumption demonstration electricity in Ganzi for retail user L1 = 60 - 25 - 35 = 0 kWh; the non - traced hydropower consumption demonstration electricity in Ganzi for wholesale user P2 = 40 - 16.67 - 23.33 = 0 kWh; the non - traced hydropower consumption demonstration electricity and other types of non - traced electricity are jointly used for out - of - contract electricity energy traceability in all trading categories in the wholesale market. The non - contract - traced hydropower consumption demonstration electricity in Ganzi on the consumption side > the non - contract - traced hydropower consumption demonstration electricity in Ganzi on the power generation side.

[0089] 2) When ∑ j The non - contract - traced hydropower consumption demonstration electricity of consumption - side entity j in q demonstration area > ∑ i The non - contract - traced hydropower consumption demonstration electricity of power - generation - side entity i in q demonstration area: The out - of - contract traced hydropower consumption demonstration electricity in q demonstration area between power - generation - side entity i and consumption - side entity j = The non - contract - traced hydropower consumption demonstration electricity of power - generation - side entity i in q demonstration area * The non - contract - traced hydropower consumption demonstration electricity of consumption - side entity j in q demonstration area / ∑ j The non - contract - traced hydropower consumption demonstration electricity of consumption - side entity j in q demonstration area.

[0090] For example: The non - contract - traced hydropower consumption in Ganzi by power company S1 is 600,000 kWh, the non - contract - traced hydropower consumption in Ganzi by wholesale user P2 is 400,000 kWh, the non - contract - traced hydropower consumption in Ganzi by hydropower plant H3 is 500,000 kWh, and the non - contract - traced hydropower consumption in Ganzi by hydropower plant H4 is 300,000 kWh.

[0091] For the demonstration electricity consumption of hydropower generation and consumption on the non - contract - traced side, priority is given to matching the tracing. The non - contract - traced electricity consumption in Ganzi on the power consumption side = 60 + 40 = 1,000,000 kWh. The non - contract - traced electricity consumption in Ganzi on the power generation side = 50 + 30 = 800,000 kWh. The non - contract - traced electricity consumption in Ganzi on the power consumption side > the non - contract - traced electricity consumption in Ganzi on the power generation side. The out - of - contract traced demonstration electricity consumption of hydropower in Ganzi between hydropower plant H3 and power selling company S1 = 50 * 60 / (60 + 40) = 300,000 kWh. The out - of - contract traced demonstration electricity consumption of hydropower in Ganzi between hydropower plant H4 and power selling company S1 = 30 * 60 / (60 + 40) = 180,000 kWh. The out - of - contract traced demonstration electricity consumption of hydropower in Ganzi between hydropower plant H3 and wholesale user P2 = 50 * 40 / (60 + 40) = 200,000 kWh. The out - of - contract traced demonstration electricity consumption of hydropower in Ganzi between hydropower plant H4 and wholesale user P2 = 30 * 40 / (60 + 40) = 120,000 kWh.

[0092] Calculate the non - traced demonstration electricity consumption of hydropower in Ganzi: The non - traced demonstration electricity consumption of hydropower in Ganzi by hydropower plant H3 = 50 - 30 - 20 = 0. The non - traced demonstration electricity consumption of hydropower in Ganzi by hydropower plant H4 = 30 - 18 - 12 = 0. The non - traced demonstration electricity consumption of hydropower in Ganzi by power selling company S1 = 60 - 30 - 18 = 120,000 kWh. The non - traced demonstration electricity consumption of hydropower in Ganzi by wholesale user P2 = 40 - 20 - 12 = 80,000 kWh. The non - traced demonstration electricity consumption and other non - traced electricity are subject to out - of - contract electricity energy tracing for all trading categories in the wholesale market.

[0093] The calculation process of out - of - contract electricity energy tracing for retained electricity: The non - contract - traced electricity consumption of retained electricity in Ganzi by retail user L1 is 600,000 kWh, the non - contract - traced electricity consumption of retained electricity in Ganzi by wholesale user P2 is 400,000 kWh, the non - contract - traced electricity consumption of retained electricity in Ganzi by hydropower plant H3 is 500,000 kWh, and the non - contract - traced electricity consumption of retained electricity in Ganzi by hydropower plant H4 is 300,000 kWh.

[0094] For the electricity volumes retained on the power generation and consumption sides that are not traced within the contract, prioritize matching and tracing: The electricity volume retained on the consumption side in Ganzi that is not traced within the contract = 60 + 40 = 100 million kWh; The electricity volume retained on the power generation side in Ganzi that is not traced within the contract = 50 + 30 = 80 million kWh; The electricity volume retained on the consumption side in Ganzi that is not traced within the contract > The electricity volume retained on the power generation side in Ganzi that is not traced within the contract; The electricity volume traced and retained outside the Ganzi contract between hydropower plant H3 and retail user L1 = 50 * 60 / (60 + 40) = 30 million kWh; The electricity volume traced and retained outside the Ganzi contract between hydropower plant H4 and retail user L1 = 30 * 60 / (60 + 40) = 18 million kWh; The electricity volume traced and retained outside the Ganzi contract between hydropower plant H3 and wholesale user P2 = 50 * 40 / (60 + 40) = 20 million kWh; The electricity volume traced and retained outside the Ganzi contract between hydropower plant H4 and wholesale user P2 = 30 * 40 / (60 + 40) = 12 million kWh.

[0095] Calculate the electricity volume retained in Ganzi that is not traced: After prioritizing matching and tracing within the state, the remaining electricity volumes retained on the power generation and consumption sides that are not traced are as follows: The electricity volume retained in Ganzi that is not traced for hydropower plant H3 = 50 - 30 - 20 = 0; The electricity volume retained in Ganzi that is not traced for hydropower plant H4 = 30 - 18 - 12 = 0; The electricity volume retained in Ganzi that is not traced for retail user L1 = 60 - 30 - 18 = 12 million kWh; The electricity volume retained in Ganzi that is not traced for wholesale user P2 = 40 - 20 - 12 = 8 million kWh; The electricity volumes retained that are not traced are traced for the electricity energy outside the contract for all trading categories in the wholesale market together with other types of electricity volumes that are not traced.

[0096] The other parts of this embodiment are the same as any one of the above embodiments 1 - 3, so they will not be elaborated further.

[0097] Embodiment 5:

[0098] This embodiment is further optimized based on any one of the above embodiments 1 - 4 for the electricity energy tracing outside the contract for all trading categories in the wholesale market.

[0099] After the electricity energy tracing outside the contract for specific trading categories in the wholesale market, if there are still electricity volumes retained on the power generation and consumption sides and hydropower consumption demonstration electricity volumes that are not traced, they are traced together with the electricity volumes of all - wind - and - solar - high - energy - consuming and other trading varieties on the power generation and consumption sides that are not traced within the contract, as well as the over - generated electricity on the power generation side for the electricity energy tracing outside the contract for all trading categories in the wholesale market.

[0100] The electricity volume to be traced outside the contract for all trading categories for consumption - side entity j = ∑ k The settlement electricity volume of consumption - side entity j for trading category k - ∑ i ∑ k The electricity volume traced within the contract between power - generation - side entity i and consumption - side entity j for trading category k - ∑ iThe out-of-contract traceable retained electricity quantity between the power generation side entity i and the electricity consumption side entity j within the state - ∑ i The out-of-contract traceable hydropower consumption demonstration electricity quantity between the power generation side entity i and the electricity consumption side entity j within the demonstration area.

[0101] The out-of-contract electricity quantity to be traced for all trading categories of the power generation side entity i = ∑ k The settlement electricity quantity of the power generation side entity i in trading category k + the over-generated electricity of the power generation side entity i - ∑ j ∑ k The in-contract traceable electricity quantity between the power generation side entity i and the electricity consumption side entity j in trading category k - ∑ j The out-of-contract traceable retained electricity quantity between the power generation side entity i and the electricity consumption side entity j within the state - ∑ j The out-of-contract traceable hydropower consumption demonstration electricity quantity between the power generation side entity i and the electricity consumption side entity j within the demonstration area.

[0102] The out-of-contract traceable electricity quantity for all trading categories between the power generation side entity i and the electricity consumption side entity j = the out-of-contract electricity quantity to be traced for all trading categories of the electricity consumption side entity j * the out-of-contract electricity quantity to be traced for all trading categories of the power generation side entity i / ∑ i The out-of-contract electricity quantity to be traced for all trading categories of the power generation side entity i.

[0103] An example of the out-of-contract electricity energy traceability for all trading categories in the wholesale market is as follows: In a certain month, after the out-of-contract electricity energy traceability for a specific trading category in the provincial wholesale market, there are still retained electricity quantities on the power generation and consumption sides that have not been traced, hydropower consumption demonstration electricity quantities, and electricity quantities of other trading categories on the power generation and consumption sides that have not been traced within the contract as follows:

[0104]

[0105] Statistical analysis of the untraced electricity quantities of power generation and consumption market entities: The out-of-contract electricity quantity to be traced for all trading categories of hydropower plant H1 = the untraced electricity quantity of other trading varieties of hydropower plant H1 + the untraced hydropower consumption electricity quantity in Liangshan of hydropower plant H1 = 180 + 40 = 220 million kWh. The out-of-contract electricity quantity to be traced for all trading categories of hydropower plant H2 = the untraced electricity quantity of other trading varieties of hydropower plant H2 + the untraced retained electricity quantity in Aba of hydropower plant H2 = 400 + 110 = 510 million kWh. The out-of-contract electricity quantity to be traced for all trading categories of wind power plant W1 = 150 million kWh. The out-of-contract electricity quantity to be traced for all trading categories of electricity sales company S1 = 200 + 50 = the untraced electricity quantity of other trading varieties of electricity sales company S1 + the untraced hydropower consumption electricity quantity in Ya'an of electricity sales company S1 = 250 million kWh. The out-of-contract electricity quantity to be traced for all trading categories of electricity sales company S2 = 450 million kWh. The out-of-contract electricity quantity to be traced for all trading categories of retail user L1 = 80 million kWh. The out-of-contract electricity quantity to be traced for all trading categories of wholesale user P1 = 100 million kWh.

[0106] Total traced electricity outside the contract for all trading categories in the wholesale market: Traced electricity outside the contract for all trading categories between hydropower plant H1 and electricity selling company S1 = 2,500,000 * 220 / (220 + 510 + 150) = 625,000 kWh. Traced electricity outside the contract for all trading categories between hydropower plant H2 and electricity selling company S1 = 2,500,000 * 510 / (220 + 510 + 150) = 1,448,900 kWh. Traced electricity outside the contract for all trading categories between wind power plant W1 and electricity selling company S1 = 2,500,000 * 150 / (220 + 510 + 150) = 426,100 kWh. Traced electricity outside the contract for all trading categories between hydropower plant H1 and retail user L1 = 800,000 * 220 / (220 + 510 + 150) = 200,000 kWh. Traced electricity outside the contract for all trading categories between hydropower plant H2 and retail user L1 = 800,000 * 510 / (220 + 510 + 150) = 463,600 kWh. Traced electricity outside the contract for all trading categories between wind power plant W1 and retail user L1 = 800,000 * 150 / (220 + 510 + 150) = 136,400 kWh. Traced electricity outside the contract for all trading categories between hydropower plant H1 and electricity selling company S2 = 4,500,000 * 220 / (220 + 510 + 150) = 1,125,000 kWh. Traced electricity outside the contract for all trading categories between hydropower plant H2 and electricity selling company S2 = 4,500,000 * 510 / (220 + 510 + 150) = 2,608,000 kWh. Traced electricity outside the contract for all trading categories between wind power plant W1 and electricity selling company S2 = 4,500,000 * 150 / (220 + 510 + 150) = 767,000 kWh. Traced electricity outside the contract for all trading categories between hydropower plant H1 and wholesale user P1 = 1,000,000 * 220 / (220 + 510 + 150) = 250,000 kWh. Traced electricity outside the contract for all trading categories between hydropower plant H2 and wholesale user P1 = 1,000,000 * 510 / (220 + 510 + 150) = 579,500 kWh. Traced electricity outside the contract for all trading categories between wind power plant W1 and wholesale user P1 = 1,000,000 * 150 / (220 + 510 + 150) = 170,500 kWh.

[0107] Total traced electricity in the wholesale market, i.e., the total traced electricity between power generation side entity i and power consumption side entity j = ∑ k Traced electricity within contract for trading category k between power generation side entity i and power consumption side entity j + Traced electricity retained outside the contract within the state between power generation side entity i and power consumption side entity j + Traced electricity for hydropower consumption demonstration outside the contract within the demonstration area between power generation side entity i and power consumption side entity j + Traced electricity outside the contract for all trading categories between power generation side entity i and power consumption side entity j.

[0108] For example, the traced electricity quantity within the direct transaction contract between the electricity sales company S1 and the power generation enterprise in the wholesale market in a certain month, the traced hydropower consumption demonstration electricity quantity outside the contract within the demonstration area, the traced electricity quantity retained outside the contract within the state, and the traced electricity quantity outside the contract for all trading categories in the wholesale market are as follows:

[0109]

[0110] The total traced electricity quantity between the hydropower plant H1 and the electricity sales company S1 = the traced electricity quantity within the contract of other trading varieties between the hydropower plant H1 and the electricity sales company S1 + the traced hydropower consumption within the contract of Ganzi between the hydropower plant H1 and the electricity sales company S1 + the traced electricity quantity retained within the contract of Ganzi between the hydropower plant H1 and the electricity sales company S1 = 100 + 30 + 20 = 1500000 kWh.

[0111] The total traced electricity quantity between the hydropower plant H2 and the electricity sales company S1 = the traced hydropower consumption demonstration electricity quantity outside the contract within the Ganzi demonstration area between the hydropower plant H2 and the electricity sales company S1 + the traced electricity quantity outside the contract for all trading categories between the power plant H2 and the electricity sales company S1 = 10 + 5 = 150000 kWh.

[0112] The total traced electricity quantity between the hydropower plant H3 and the electricity sales company S1 = the traced electricity quantity retained outside the contract within Ganzi Prefecture between the hydropower plant H3 and the electricity sales company S1 = 50000 kWh.

[0113] The total traced electricity quantity between the wind power plant W1 and the electricity sales company S1 = the traced electricity quantity outside the contract for all trading categories between the wind power plant W1 and the electricity sales company S1 = 100000 kWh.

[0114] Other parts of this embodiment are the same as any one of the above embodiments 1-4, so they will not be elaborated here.

[0115] Embodiment 6:

[0116] This embodiment is further optimized on the basis of any one of the above embodiments 1-5. In this embodiment, the electricity quantity traceability in the retail market means directly tracing the electricity quantity retained by wholesale users and retail users according to the electricity quantity source tracing principle in the wholesale market, and conducting electricity quantity traceability in the retail market for trading categories other than the retained electricity quantity of retail users. For the electricity quantity traced within the contract in the retail market, for the electricity quantity traced within the contract by the electricity sales company in the wholesale market, it is pre-allocated and the electricity quantity within the contract is traced in the retail market by trading category (the trading category of hydropower consumption demonstration includes the traced hydropower consumption demonstration electricity quantity outside the contract within the demonstration area).

[0117] The pre-allocated electricity includes the pre-allocated electricity on the electricity seller side and the pre-allocated electricity on the retail user side. For the pre-allocated electricity on the electricity seller side, when the transaction category k is non-hydro power consumption demonstration: The pre-allocated electricity within the contract on the electricity seller side for the transaction category k between the electricity seller s and the retail user h = The traceable electricity within the contract of the electricity seller s for the transaction category k * min (the contract electricity for the transaction category k between the electricity seller s and the retail user h, the settlement electricity for the transaction category k of the retail user h of the electricity seller s) / ∑ h min (the contract electricity for the transaction category k between the electricity seller s and the retail user h, the settlement electricity for the transaction category k of the retail user h of the electricity seller s). For the pre-allocated electricity on the electricity seller side, when the transaction category k is hydro power consumption demonstration: The pre-allocated electricity within the contract on the electricity seller side for the hydro power consumption demonstration within the q demonstration area between the electricity seller s and the retail user h = (The traceable electricity within the contract of the electricity seller s for the hydro power consumption demonstration within the q demonstration area + The traceable hydro power consumption demonstration electricity outside the contract of the electricity seller s within the q demonstration area) * min (the contract electricity for the hydro power consumption demonstration within the q demonstration area between the electricity seller s and the retail user h, the settlement electricity for the hydro power consumption demonstration within the q demonstration area of the retail user h of the electricity seller s) / ∑ h min (the contract electricity for the hydro power consumption demonstration within the q demonstration area between the electricity seller s and the retail user h, the settlement electricity for the hydro power consumption demonstration within the q demonstration area of the retail user h of the electricity seller s).

[0118] An example of calculating the pre-allocated electricity on the electricity seller side is as follows: In a certain month, the traceable electricity of electricity seller S1 in the wholesale market is as follows:

[0119] Unit: 10,000 kWh

[0120]

[0121] The contract electricity and settlement electricity of the retail users agented by electricity seller S1 are as follows:

[0122]

[0123] Calculate the pre-allocated electricity on the electricity seller side and the retail user side:

[0124] (1)Pre-allocated electricity on the electricity seller side: For other trading varieties between electricity seller S1 and retail user L1, the pre-allocated hydropower electricity within the contract on the electricity seller side = (200 + 120) * 300 / (300 + 120) = 228.57 million kWh; for other trading varieties between electricity seller S1 and retail user L2, the pre-allocated hydropower electricity within the contract on the electricity seller side = (200 + 120) * 120 / (300 + 120) = 91.43 million kWh; for the hydropower consumption in Ya'an between electricity seller S1 and retail user L3, the pre-allocated electricity within the contract on the electricity seller side = (100 + 180 + 90) * 150 / (150 + 200) = 158.57 million kWh; for the hydropower consumption in Ya'an between electricity seller S1 and retail user L4, the pre-allocated electricity within the contract on the electricity seller side = (100 + 180 + 90) * 200 / (150 + 200) = 211.43 million kWh; for other trading varieties between electricity seller S1 and retail user L5, the pre-allocated wind and solar electricity within the contract on the electricity seller side = (170 + 90) * 180 / (180 + 80) = 180 million kWh; for other trading varieties between electricity seller S1 and retail user L6, the pre-allocated wind and solar electricity within the contract on the electricity seller side = (170 + 90) * 80 / (180 + 80) = 80 million kWh.

[0125] (2)Pre-allocated electricity on the retail user side: The pre-allocated electricity on the retail user side is the settlement electricity for the corresponding trading category and power source category of the retail user. For other trading varieties between electricity seller S1 and retail user L1, the pre-allocated hydropower electricity within the contract on the retail user side = 240 million kWh; for other trading varieties between electricity seller S1 and retail user L2, the pre-allocated hydropower electricity within the contract on the retail user side = 90 million kWh; for the hydropower consumption in Ya'an between electricity seller S1 and retail user L3, the pre-allocated electricity within the contract on the retail user side = 180 million kWh; for the hydropower consumption in Ya'an between electricity seller S1 and retail user L4, the pre-allocated electricity within the contract on the retail user side = 210 million kWh; for other trading varieties between electricity seller S1 and retail user L5, the pre-allocated wind and solar electricity within the contract on the retail user side = 160 million kWh; for other trading varieties between electricity seller S1 and retail user L6, the pre-allocated wind and solar electricity within the contract on the retail user side = 120 million kWh.

[0126] The pre-allocated electricity on the retail user side is the pre-allocated electricity on the retail user side for the trading category k between electricity seller s and retail user h = the settlement electricity for the trading category k between electricity seller s and retail user h. Its calculation method is the same as the method for calculating the pre-allocated electricity on the electricity seller side and the retail user side.

[0127] The contract-included traceable electricity quantity is the contract-included traceable electricity quantity of transaction category k between the electricity selling company s and the retail user h = min (the contract electricity quantity of transaction category k between the electricity selling company s and the retail user h, the pre-allocated electricity quantity on the electricity selling company side of transaction category k between the electricity selling company s and the retail user h, the pre-allocated electricity quantity on the retail user side of transaction category k between the electricity selling company s and the retail user h).

[0128] When the transaction category k is non-hydro power consumption demonstration: the contract-included traceable electricity quantity of transaction category k between the power generation side entity i, the electricity selling company s and the retail user h = the contract-included traceable electricity quantity of transaction category k between the electricity selling company s and the retail user h * the contract-included traceable electricity quantity of transaction category k between the power generation side entity i and the electricity selling company s / ∑ i The contract-included traceable electricity quantity of transaction category k between the power generation side entity i and the electricity selling company s.

[0129] When the transaction category k is hydro power consumption demonstration: the contract-included traceable electricity quantity of hydro power consumption demonstration between the power generation side entity i, the electricity selling company s and the retail user h = the contract-included traceable electricity quantity of hydro power consumption demonstration between the electricity selling company s and the retail user h * (the contract-included traceable electricity quantity of hydro power consumption demonstration between the power generation side entity i and the electricity selling company s + the out-of-contract traceable hydro power consumption demonstration electricity quantity within the demonstration area between the power generation side entity i and the electricity selling company s) / ∑ i (the contract-included traceable electricity quantity of hydro power consumption demonstration between the power generation side entity i and the electricity selling company s + the out-of-contract traceable hydro power consumption demonstration electricity quantity within the demonstration area between the power generation side entity i and the electricity selling company s).

[0130] The calculation process of the contract-included traceable electricity quantity is the process of calculating the contract-included traceable electricity quantity and the electricity quantity not traceable within the contract. First, calculate the contract-included traceable electricity quantity between the electricity selling company and the retail user. Examples are: the contract-included traceable hydro electricity quantity of other transaction varieties between the electricity selling company S1 and the retail user L1 = min(300, 228.57, 240) = 2.2857 million kWh; the contract-included traceable hydro electricity quantity of other transaction varieties between the electricity selling company S1 and the retail user L2 = min(120, 91.43, 90) = 900,000 kWh; the contract-included traceable hydro electricity quantity of Ya'an hydro power consumption demonstration between the electricity selling company S1 and the retail user L3 = min(150, 158.57, 180) = 1500,000 kWh; the contract-included traceable hydro electricity quantity of Ya'an hydro power consumption demonstration between the electricity selling company S1 and the retail user L4 = min(200, 211.43, 210) = 2 million kWh; the contract-included traceable wind and solar electricity quantity of other transaction varieties between the electricity selling company S1 and the retail user L5 = min(180, 180, 160) = 1.6 million kWh; the contract-included traceable wind and solar electricity quantity of other transaction varieties between the electricity selling company S1 and the retail user L6 = min(80, 80, 120) = 800,000 kWh.

[0131] Recalculate the traceable electricity within the contracts between power generation enterprises and retail users, including other trading varieties. For example:

[0132] The traceable electricity within the contract of other trading varieties between hydropower plant H1 and retail user L1 = 228.57 * 200 / (200 + 120) = 142.86 million kWh; The traceable electricity within the contract of other trading varieties between hydropower plant H2 and retail user L1 = 228.57 * 120 / (200 + 120) = 85.71 million kWh; The traceable electricity within the contract of other trading varieties between hydropower plant H1 and retail user L2 = 90 * 200 / (200 + 120) = 56.25 million kWh; The traceable electricity within the contract of other trading varieties between hydropower plant H2 and retail user L2 = 90 * 120 / (200 + 120) = 33.75 million kWh; The traceable electricity within the contract of other trading varieties between wind power plant W1 and retail user L5 = 160 * 170 / (170 + 90) = 104.62 million kWh; The traceable electricity within the contract of other trading varieties between wind power plant W2 and retail user L5 = 160 * 90 / (170 + 90) = 55.38 million kWh; The traceable electricity within the contract of other trading varieties between wind power plant W1 and retail user L6 = 80 * 170 / (170 + 90) = 52.31 million kWh; The traceable electricity within the contract of other trading varieties between wind power plant W2 and retail user L6 = 80 * 90 / (170 + 90) = 27.69 million kWh.

[0133] An example calculation of the demonstration transaction for hydropower consumption: The traceable electricity within the Yaan contract for hydropower consumption between hydropower plant H1 and retail user L3 = 150 * 180 / (180 + 190) = 72.97 million kWh; The traceable electricity within the Yaan contract for hydropower consumption between hydropower plant H2 and retail user L3 = 150 * 190 / (180 + 190) = 77.03 million kWh; The traceable electricity within the Yaan contract for hydropower consumption between hydropower plant H1 and retail user L4 = 200 * 180 / (180 + 190) = 97.3 million kWh; The traceable electricity within the Yaan contract for hydropower consumption between hydropower plant H2 and retail user L4 = 200 * 190 / (180 + 190) = 102.7 million kWh.

[0134] The untraceable electricity quantities of power plants and retail users in the contract include calculating the untraceable electricity quantities of power plants not in the contract and the untraceable electricity quantities of retail users. Among them, the calculation process of the untraceable electricity quantities of power plants not in the contract is as follows: The untraceable electricity quantity of hydropower plant H1 in other trading varieties not in the contract = 200 - (142.86 + 56.25) = 0.89 million kWh; The untraceable electricity quantity of hydropower plant H1 for hydropower consumption in Ya'an not in the contract = 180 - (72.97 + 97.3) = 9.73 million kWh; The untraceable electricity quantity of hydropower plant H2 in other trading varieties not in the contract = 120 - (85.71 + 33.75) = 0.54 million kWh; The untraceable electricity quantity of hydropower plant H2 for hydropower consumption in Ya'an not in the contract = (100 + 90) - (77.03 + 102.7) = 10.27 million kWh; The untraceable electricity quantity of wind power plant W1 in other trading varieties not in the contract = 170 - (104.62 + 52.31) = 13.08 million kWh; The untraceable electricity quantity of wind power plant W2 in other trading varieties not in the contract = 90 - (55.83 + 27.69) = 6.92 million kWh.

[0135] The calculation process of the untraceable electricity quantities of retail users is as follows: The untraceable electricity quantity of retail user L1 in other trading varieties not in the contract = 240 - 228.57 = 11.43 million kWh; The untraceable electricity quantity of retail user L2 in other trading varieties not in the contract = 90 - 90 = 0; The untraceable electricity quantity of retail user L3 for hydropower consumption in Ya'an not in the contract = 180 - 150 = 30 million kWh; The untraceable electricity quantity of retail user L4 for hydropower consumption in Ya'an not in the contract = 210 - 200 = 10 million kWh; The untraceable electricity quantity of retail user L5 in other trading varieties not in the contract = 160 - 160 = 0; The untraceable electricity quantity of retail user L6 in other trading varieties not in the contract = 120 - 80 = 40 million kWh.

[0136] Other parts of this embodiment are the same as any one of the above Embodiments 1-5, so they will not be elaborated here.

[0137] Embodiment 7:

[0138] This embodiment is further optimized on the basis of any one of the above Embodiments 1-6. For the demonstration electricity quantity of hydropower consumption in the retail market and the tracing of the off-contract electricity energy within the demonstration area, that is, when the trading category k is the demonstration of hydropower consumption, for the demonstration electricity quantity of hydropower consumption on the power seller side and the retail user side within the same power seller's scope that is not traced within the contract, it is preferentially traced and matched within this demonstration area.

[0139] The tracing of the off - contract electricity energy within the demonstration area of the retail market's hydropower and electricity consumption demonstration electricity volume includes the tracing of the hydropower and electricity consumption demonstration electricity volume not traced within the contract and the tracing of the off - contract electricity energy within the demonstration area of the hydropower and electricity consumption demonstration electricity volume. Among them, the calculation method for the tracing of the hydropower and electricity consumption demonstration electricity volume not traced within the contract is: The electricity volume of the power generation side entity i not traced within the contract for the hydropower and electricity consumption demonstration of the power selling company s = The electricity volume traced within the hydropower and electricity consumption demonstration contract between the power generation side entity i and the power selling company s+The off - contract traced hydropower and electricity consumption demonstration electricity volume within the demonstration area between the power generation side entity i and the power selling company s - ∑ h The electricity volume traced within the hydropower and electricity consumption demonstration contract between the power generation side entity i, the power selling company s and the retail user h; The electricity volume not traced within the contract on the retail user side of the hydropower and electricity consumption demonstration between the power selling company s and the retail user h = The pre - allocated electricity volume on the retail user side of the hydropower and electricity consumption demonstration between the power selling company s and the retail user h - The electricity volume traced within the hydropower and electricity consumption demonstration contract between the power selling company s and the retail user h. The example of the calculation process is the same as that of the electricity volume traced within the contract, so it will not be elaborated here.

[0140] The calculation method for the tracing of the off - contract electricity energy within the demonstration area of the hydropower and electricity consumption demonstration electricity volume is: The off - contract traced hydropower and electricity consumption demonstration electricity volume within the demonstration area between the power generation side entity i, the power selling company s and the retail user h = The electricity volume of the power generation side entity i not traced within the contract for the hydropower and electricity consumption demonstration of the power selling company s * The electricity volume not traced within the contract on the retail user side of the hydropower and electricity consumption demonstration between the power selling company s and the retail user h / ∑ h The electricity volume not traced within the contract on the retail user side of the hydropower and electricity consumption demonstration between the power selling company s and the retail user h. The example of the calculation process for the off - contract traced hydropower and electricity consumption demonstration electricity volume within the demonstration area is: The off - contract traced hydropower and electricity consumption Ya'an electricity volume within the demonstration area between the hydropower plant H1 and the retail user L3 = 9.73 * 30 / (30 + 10)=73,000 kWh; The off - contract traced hydropower and electricity consumption Ya'an electricity volume within the demonstration area between the hydropower plant H2 and the retail user L3 = 10.27 * 30 / (30 + 10)=77,000 kWh

[0141] The off - contract traced hydropower and electricity consumption Ya'an electricity volume within the demonstration area between the hydropower plant H1 and the retail user L4 = 9.73 * 10 / (30 + 10)=24,300 kWh; The off - contract traced hydropower and electricity consumption Ya'an electricity volume within the demonstration area between the hydropower plant H2 and the retail user L4 = 10.27 * 10 / (30 + 10)=25,700 kWh.

[0142] Other parts of this embodiment are the same as any one of the above - mentioned embodiments 1 - 6, so they will not be elaborated here.

[0143] Embodiment 8:

[0144] This embodiment is further optimized on the basis of any one of the above Embodiments 1-7. For the external electricity energy traceability of all transaction categories in the retail market; for the external electricity energy of the demonstration contract for hydropower consumption in the retail market that remains untraceable after traceability, together with the electricity of the power selling companies and the hydropower consumption demonstration electricity on the retail user side that have not been traced, they are subject to the external electricity energy traceability of all transaction categories in the retail market together with other transaction category electricity on the retail user side of the power selling companies that have not been traced within the contract. The electricity of the power generation side entity i that needs to be traced outside the contract for all transaction categories of the power selling company s = the total traceable electricity between the power generation side entity i and the power selling company s - ∑ h ∑ k The traced electricity within the contract of transaction category k between the power generation side entity i and the retail user h of the power selling company s - ∑ h The traced hydropower consumption demonstration electricity outside the contract within the demonstration area between the power generation side entity i and the retail user h of the power selling company s; the electricity of the retail user h of the power selling company s that needs to be traced outside the contract for all transaction categories = ∑ k The settlement electricity of transaction category k of the retail user h of the power selling company s - ∑ k The traced electricity within the contract of transaction category k between the power selling company s and the retail user h - ∑ i The traced hydropower consumption demonstration electricity outside the contract within the demonstration area between the power generation side entity i and the retail user h of the power selling company s; the traced electricity outside the contract for all transaction categories between the power generation side entity i and the retail user h of the power selling company s = the electricity of the retail user h of the power selling company s that needs to be traced outside the contract for all transaction categories * the electricity of the power generation side entity i that needs to be traced outside the contract for all transaction categories of the power selling company s / ∑ i The electricity of the power generation side entity i that needs to be traced outside the contract for all transaction categories of the power selling company s.

[0145] The specific method for calculating the traced electricity outside the contract for all transaction categories in the retail market is as follows: The electricity of the power generation enterprises that have not been traced within the contract on the power selling company side is as follows: Unit: 10,000 kWh

[0146]

[0147] The traced electricity outside the contract for all transaction categories in the wholesale market of power selling company S1 is as follows: Unit: 10,000 kWh

[0148]

[0149] The electricity that has not been traced within the contract on the retail user side is as follows: Unit: 10,000 kWh

[0150]

[0151] The traced hydropower consumption demonstration electricity outside the contract within the demonstration area is as follows: Unit: 10,000 kWh

[0152]

[0153] Calculate the electricity quantity to be traced back outside the contracts of all trading categories on the electricity seller side:

[0154] The electricity quantity of hydropower plant H1 to be traced back outside the contracts of all trading categories for electricity seller S1 = (0.89 + 9.73) - (7.30 + 2.43) = 0.89 million kWh; The electricity quantity of hydropower plant H2 to be traced back outside the contracts of all trading categories for electricity seller S1 = (0.54 + 10.27) - (7.70 + 2.57) + 30 = 30.54 million kWh; The electricity quantity of hydropower plant H3 to be traced back outside the contracts of all trading categories for electricity seller S1 = (0.89 + 9.73) - (7.30 + 2.43) + 20 = 20 million kWh; The electricity quantity of wind power plant W1 to be traced back outside the contracts of all trading categories for electricity seller S1 = 13.08 million kWh; The electricity quantity of wind power plant W2 to be traced back outside the contracts of all trading categories for electricity seller S1 = 6.92 million kWh.

[0155] Calculate the electricity quantity to be traced back outside the contracts of all trading categories on the retail user side:

[0156] The electricity quantity to be traced back outside the contracts of all trading categories for retail user L1 = 11.43 million kWh; The electricity quantity to be traced back outside the contracts of all trading categories for retail user L2 = 0; The electricity quantity to be traced back outside the contracts of all trading categories for retail user L3 = 30 - (7.3 + 7.7) = 15 million kWh; The electricity quantity to be traced back outside the contracts of all trading categories for retail user L4 = 10 - (2.43 + 2.57) = 5 million kWh; The electricity quantity to be traced back outside the contracts of all trading categories for retail user L5 = 0; The electricity quantity to be traced back outside the contracts of all trading categories for retail user L6 = 40 million kWh.

[0157] The electricity quantity traced back outside the contracts of all trading categories in the retail market:

[0158] The electricity quantity traced back outside the contracts of all trading categories between hydropower plant H1 and retail user L1 = 11.43 * 0.89 / (0.89 + 30.54 + 20 + 13.08 + 6.92) = 0.14 million kWh; The electricity quantity traced back outside the contracts of all trading categories between hydropower plant H2 and retail user L1 = 11.43 * 30.54 / (0.89 + 30.54 + 20 + 13.08 + 6.92) = 4.89 million kWh; The electricity quantity traced back outside the contracts of all trading categories between hydropower plant H3 and retail user L1 = 11.43 * 20 / (0.89 + 30.54 + 20 + 13.08 + 6.92) = 3.2 million kWh; The electricity quantity traced back outside the contracts of all trading categories between wind power plant W1 and retail user L1 = 11.43 * 13.08 / (0.89 + 30.54 + 20 + 13.08 + 6.92) = 2.09 million kWh; The electricity quantity traced back outside the contracts of all trading categories between wind power plant W2 and retail user L1 = 11.43 * 6.92 / (0.89 + 30.54 + 20 + 13.08 + 6.92) = 1.11 million kWh.

[0159] Similarly, the off-contract traceable electricity of all retail users of electricity sales company S1 for all transaction categories is as follows: Unit: 10,000 kWh

[0160]

[0161] Among the total traceable electricity of retail users:

[0162] The total traceable electricity between power generation side entity i and retail user h of electricity sales company s = ∑ k The in-contract traceable electricity of transaction category k between power generation side entity i and retail user h of electricity sales company s + The off-contract traceable hydropower consumption demonstration electricity within the demonstration area between power generation side entity i and retail user h of electricity sales company s + The off-contract traceable electricity of all transaction categories between power generation side entity i and retail user h of electricity sales company s;

[0163] The process of calculating the total traceable electricity of retail users: The total traceable electricity between hydropower plant H1 and retail user L1 = 142.86 + 0 + 0.14 = 143 10,000 kWh; The total traceable electricity between hydropower plant H1 and retail user L2 = 56.25 + 0 + 0 = 56.25 10,000 kWh; The total traceable electricity between hydropower plant H1 and retail user L3 = 72.97 + 7.3 + 0.19 = 80.46 10,000 kWh; The total traceable electricity between hydropower plant H1 and retail user L4 = 97.3 + 2.43 + 0.06 = 99.79 10,000 kWh; The total traceable electricity between hydropower plant H1 and retail user L5 = 0 + 0 + 0 = 0; The total traceable electricity between hydropower plant H1 and retail user L6 = 0 + 0 + 0.5 = 0.5 10,000 kWh; And so on, the total traceable electricity of retail users agented by electricity sales company S1 is as follows: Unit: 10,000 kWh

[0164]

[0165] Traceability of bundled purchased electricity: For electricity users who purchase electricity in bundles (including in-province coal-fired thermal power electricity, inter-provincial purchased electricity, priority electricity of new energy and gas-fired units, and replaced wind and photovoltaic electricity purchased in bundles), the power trading platform automatically matches the electricity of power plants for them, which is the traceable electricity. Specific calculation method: Retail user L1 purchased 2 million kWh of thermal power electricity in bundles in January. The actual thermal power electricity in that month was less than the thermal power electricity that should be purchased in bundles by industrial and commercial users in the market. The insufficient part was made up by the priority electricity of new energy and gas-fired units. The electricity of power plants automatically matched by the power trading platform for retail user L1 was: 1 million kWh of electricity matched by thermal power plant T1, 500,000 kWh of electricity matched by thermal power plant T2, 200,000 kWh of inter-provincial purchased thermal power electricity, 100,000 kWh of electricity matched by wind farm W1, 100,000 kWh of electricity matched by photovoltaic power generation G1, and 100,000 kWh of electricity matched by gas-fired unit R1. The electricity of power plants automatically matched by the power trading platform for retail user L1 is the traceable electricity for the part of the bundled purchased electricity of retail user L1.

[0166] Other parts of this embodiment are the same as any one of the above embodiments 1-7, so they will not be described in detail.

[0167] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention falls within the protection scope of the present invention.

Claims

1. A method for tracing the electrical energy in the electricity market in power trading, characterized in that, Including the following steps: Step S1, conduct power energy traceability in the wholesale market. The power energy traceability in the wholesale market includes power energy traceability between power plants and electricity selling companies and power energy traceability between power plants and wholesale users. The method for conducting power energy traceability in the wholesale market includes first conducting power energy traceability within the wholesale market contracts and judging the transaction categories, then conducting power energy traceability outside the contracts for specific transaction categories in the wholesale market, and finally conducting power energy traceability outside the contracts for all transaction categories in the wholesale market; Step S2, conduct power energy traceability in the retail market. The power energy traceability in the retail market includes power energy traceability between electricity selling companies and retail users. The method for conducting power energy traceability in the retail market includes conducting power energy traceability within the contracts between electricity selling companies and retail users in the retail market and judging the transaction categories based on the power energy traceability between power plants and electricity selling companies in the wholesale market, then conducting power energy traceability outside the contracts for specific transaction categories between electricity selling companies and retail users in the retail market, and finally conducting power energy traceability outside the contracts for all transaction categories between electricity selling companies and retail users in the retail market; Step S3, complete power energy traceability in the power market through power energy traceability in the wholesale market and power energy traceability in the retail market; Among them, the method for conducting power energy traceability within the contracts between power plants and electricity selling companies in the wholesale market in step S1 includes: Step A1, calculate the associated contract electricity quantity between the power generation side market entity and the power consumption side market entity in the wholesale market; Step A2, calculate the pre-allocated electricity quantity between the power generation side market entity and the power consumption side market entity in the wholesale market; Step A3, calculate the traced electricity quantity within the wholesale market contracts; Step A4, calculate the electricity quantity not traced within the contracts; Step A5, judge whether the transaction category is retained electricity quantity or hydropower consumption demonstration. If so, conduct power energy traceability outside the contracts for specific transaction categories in the wholesale market, and then conduct power energy traceability outside the contracts for all transaction categories in the wholesale market. If not, directly conduct power energy traceability outside the contracts for all transaction categories in the wholesale market.

2. The method for tracing the electrical energy in the electricity market in power trading according to claim 1, wherein Step A1 includes: Step A11, calculate the associated contract electricity quantity between the power generation and consumption sides for incremental transactions; Step A12, calculate the contract electricity quantity to be matched between the power generation and consumption sides for non-incremental transactions; Step A13, calculate the associated contract electricity quantity between the power generation and consumption sides for non-incremental transactions.

3. A method for tracing the electrical energy in the power market in power trading according to claim 1, characterized in that, The method for conducting power energy traceability outside the contracts for specific transaction categories between power plants and electricity selling companies in the wholesale market in step S1 includes: Calculate the power energy traceability outside the contracts for retained electricity quantity and the power energy traceability outside the contracts for hydropower consumption demonstration.

4. A method for tracing the electrical energy in the electricity market in power trading according to claim 1, characterized in that, The method for conducting power energy traceability outside the contracts for all transaction categories between power plants and electricity selling companies includes: Statistically calculate the electricity quantity to be traced outside the contracts for all transaction categories on the power generation side and the power consumption side, and calculate the traced electricity quantity outside the contracts for all transaction categories.

5. A method for tracing the electrical energy in the electricity market in power trading according to claim 1, characterized in that, The method for conducting power energy traceability within the contracts between electricity selling companies and retail users in the retail market in step S2 includes: Step B1, calculate the pre-allocated electricity quantity on the electricity selling company side and the retail user side; Step B2, calculate the traced electricity quantity within the contracts; Step B3, calculate the electricity quantity not traced within the contracts; Step B4: Determine whether the transaction category is the demonstration of hydropower consumption. If so, conduct the traceability of the electricity quantity outside the contract for the specific transaction category in the retail market, and then conduct the traceability of the electricity quantity outside the contract for all transaction categories in the retail market. If not, directly conduct the traceability of the electricity quantity outside the contract for all transaction categories in the retail market.

6. A method for tracing the electrical energy in the electricity market in power trading according to claim 1, characterized in that, The method for tracing the electricity quantity outside the contract for the specific transaction category between the electricity selling company and the retail users in the retail market in step S2 includes: Calculate the traced electricity quantity outside the contract for the hydropower consumption demonstration contract.

7. A method for tracing the electrical energy in the electricity market in power trading according to claim 1, characterized in that, The method for tracing the electricity quantity outside the contract for all transaction categories between the electricity selling company and the retail users in the retail market in step S2 includes: Statistically calculate the electricity quantity to be traced outside the contract for all transaction categories on the side of the electricity selling company and the retail users, and calculate the traced electricity quantity outside the contract for all transaction categories.

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