Inter-provincial electricity transaction method and system based on standardized contract

Abstract

The invention discloses an inter-provincial electricity transaction method and system based on a standardized contract. The method comprises the steps of automatically judging whether an admission condition is met or not according to characteristics of an operation subject, determining an intra-month transaction target, an annual transaction target and a monthly transaction target according to a corresponding time unit by taking electric quantity in each time period as a minimum target, and performing on-site transaction and off-site transaction based on a standardized contract; the transaction direction of the declaration node is determined, and the declaration electric quantity and the declaration price of the operation subject with the access condition are determined according to the market constraint and the price constraint of the declaration node; constructing a path set of the inter-provincial standardized contract transaction, searching a declaration record in a direction opposite to the transaction direction by adopting a rolling matching algorithm based on the path set, performing matching calculation on the determined declaration electric quantity and declaration price, determining a transaction transaction price, and respectively converting the transaction transaction price to a declaration node, after transaction clearing is completed, collaborative clearing is carried out to form a final result, and the final result is published to the operation subject; and after transaction clearing is completed, collaborative clearing is carried out to form a final result, and the final result is published to the operation subject. According to the scheme, the transaction operation level is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of smart grids, and particularly relates to an inter-provincial power trading method and system based on standardized contracts. Background Art

[0002] With the advancement of the electricity market reform, the scale and complexity of inter-provincial power trading have been continuously increasing. The gradually and orderly liberalization of the priority power generation plan between provinces, the further increase in the proportion of new energy power generation, the gradual improvement of the professionalism and maturity of business entities, the gradual refinement of the time-of-use period into a 24-point power curve, the substantial improvement in the efficiency of coordinated clearing and security checking, and the gradual transformation of the pilot spot electricity provinces into formal operation. Due to the aforementioned internal and external reasons and driving forces, it is required that the trading targets of inter-provincial power trading be further subdivided, the trading frequency be continuously increased, and the trading cycle be further shortened. There is an urgent need for a flexible contract adjustment mechanism for inter-provincial medium- and long-term trading. Summary of the Invention

[0003] In order to solve the deficiencies existing in the prior art, the present invention provides an inter-provincial power trading method and system based on standardized contracts to solve the technical problems of standardizing and promoting power trading, improving trading efficiency, and ensuring the fairness and security of trading.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions.

[0005] The present invention first discloses an inter-provincial power trading method based on standardized contracts, and the method includes the following steps:

[0006] Step 1: Automatically judge whether the access conditions are met according to the characteristics of business entities. Taking the electricity quantity per time period as the minimum trading target, determine the trading targets within a month, annual trading targets, and monthly trading targets according to the corresponding time unit, and conduct on-exchange trading and over-the-counter trading based on standardized contracts;

[0007] Step 2: Determine the trading direction of the declaration node, and determine the declared electricity quantity and declared price of the business entities meeting the access conditions according to the market constraints and price constraints of the affiliated declaration node;

[0008] Step 3: Construct a path set for inter-provincial standardized contract trading. Based on the path set, use a rolling matching algorithm to search for declaration records in the direction opposite to the trading direction to perform matching and calculation on the determined declared electricity quantity and declared price, determine the trading transaction price, and respectively convert it to the declaration node. After the trading clearing is completed, perform coordinated clearing to form the final result, and release the final result to business entities.

[0009] The present invention further includes the following preferred solutions:

[0010] The characteristics of the operating entity include electricity business license, contract fulfillment rate, performance bond, energy efficiency and environmental protection requirements, total assets, credit rating, business scope or industry.

[0011] The determination of the monthly transaction targets, annual transaction targets and monthly transaction targets according to the corresponding time units further includes:

[0012] The annual transaction target is determined as the electricity amount in each time period of the following year. Transactions are organized as a whole based on the year or month, and the electricity amount is evenly decomposed into each time period of each day. The monthly transaction target is determined as the electricity amount in each time period of the following month. Transactions are organized as a whole based on months, and the electricity amount is evenly decomposed into daily periods. Selling or buying in the monthly market is based on the annual results. The intra-month transaction target is determined as the electricity amount in each time period of the month. Transactions are organized as a whole based on ten days or weeks, and the electricity amount is evenly decomposed into daily periods.

[0013] The market constraint parameters include upper and lower limits of electricity quantity and price, peak-valley price difference coefficient, number of quotation steps, electricity quantity limit adjustment coefficient, arbitrage coefficient, minimum price change or minimum electricity quantity change.

[0014] The method of using a rolling matching algorithm to search for declaration records in a direction opposite to the transaction direction to perform matching calculations on the determined declared electricity quantity and declared price further includes:

[0015] Based on the declaration node and transaction direction of each transaction, the following data in the existing declaration records in the opposite transaction direction are searched and matched and calculated:

[0016] ① Obtain the declaration record with a path connected to the transaction declaration, which has been completed in the previous path set construction;

[0017] ② Convert the peer's quotes to the reporting node where the quotes are located according to the path, and sort them in order of buyer's price from high to low and seller's price from low to high after conversion;

[0018] ③ According to the sorted order, determine whether the following conditions are met at the same time:

[0019] (a) The buyer's price after conversion is greater than or equal to the seller's price;

[0020] (b) The path ATC satisfies the minimum value of the electricity declared by the buyer and the seller;

[0021] ④ If the above two conditions are met, the transaction will be considered completed according to the ranking. The transaction volume is the minimum value of the path ATC and the volume declared by the buyer and the seller, until all the volumes that meet the transaction conditions are completed. After a transaction is completed, the holdings of each business entity and the ATC of the relevant lines will be updated in real time.

[0022] The present invention also discloses an inter-provincial electricity trading system based on standardized contracts using the aforementioned inter-provincial electricity trading method based on standardized contracts, including:

[0023] A trading organization module, configured to automatically determine whether the access conditions are met according to the characteristics of the business entities, use the electricity quantity per period as the minimum trading unit, determine the trading units within a month, annual trading units, and monthly trading units according to the corresponding time unit, and conduct on-exchange trading and over-the-counter trading based on standardized contracts;

[0024] A trading declaration module, configured to determine the trading direction of the declaration node, and determine the declared electricity quantity and declared price of the business entities meeting the access conditions according to the market constraints and price constraints of the affiliated declaration node;

[0025] A trading clearing module, configured to construct a path set for inter-provincial standardized contract trading, and based on the path set, use a rolling matching algorithm to search for declaration records in the direction opposite to the trading direction to perform matching and calculation on the determined declared electricity quantity and declared price, determine the trading transaction price, and convert it to the declaration node respectively. After the trading clearing is completed, coordinated clearing is performed to form the final result, and the final result is released to the business entities.

[0026] Correspondingly, the present application also discloses a terminal, including a processor and a storage medium;

[0027] The storage medium is used to store instructions;

[0028] The processor is configured to operate according to the instructions to execute the steps of the aforementioned inter-provincial electricity trading method based on standardized contracts.

[0029] Correspondingly, the present application also discloses a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the aforementioned inter-provincial electricity trading method based on standardized contracts are implemented.

[0030] The beneficial effects of the present invention are that, compared with the prior art, the present invention provides an inter-provincial electricity trading method and system based on standardized contracts, which improves the trading operation level, and the standardized contract trading mode has flexibility and adaptability. By forming a power market design language, the standardization of power market commodities is realized. Description of the Drawings

[0031] Figure 1 It is a schematic diagram of trading access in the present invention.

[0032] Figure 2 It is a schematic diagram of trading units in the present invention.

[0033] Figure 3 It is a schematic diagram of trading methods in the present invention.

[0034] Figure 4 It is a schematic diagram of the trading clearing standard node in the present invention.

[0035] Figure 5 It is a schematic diagram of collaborative clearing in the present invention. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] The embodiments described in this application are only a part of the embodiments of the present invention, rather than all embodiments. Based on the spirit of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] In order to standardize and promote electricity trading, improve trading efficiency, and ensure the fairness and security of trading, standardized contracts, as a form of contract, have gradually become an important tool in inter-provincial electricity trading. Aiming at the deficiencies of the prior art, the present invention proposes an inter-provincial electricity trading method and system based on standardized contracts, including trading organization steps, trading declaration steps and trading clearing steps; the trading organization includes unified access conditions, trading targets and trading methods; trading declaration includes unified declaration content and standardized declaration nodes; trading clearing includes unified clearing methods and price formation methods.

[0039] The inter-provincial electricity trading method based on standardized contracts disclosed by the present invention includes the following steps:

[0040] Step 1: Automatically judge whether the access conditions are met according to the characteristics of the business entities. Taking the electricity quantity of each time period as the minimum target, determine the trading targets within a month, annual trading targets and monthly trading targets according to the corresponding time units, and conduct on-exchange trading and over-the-counter trading based on standardized contracts.

[0041] The trading organization includes unified access conditions, trading targets and trading methods. In the trading access conditions, to ensure information transparency, the access list is no longer divided, and it is automatically judged whether the access conditions are met according to the characteristics of the business entity information itself, including power business licenses, contract performance rates, performance bonds, energy efficiency and environmental protection requirements, total assets, credit ratings, business scopes, and industries to which they belong. For example, if the trading access conditions require a power business license, it is determined that the business entity with a power business license meets the access conditions; and if the trading access conditions require a contract performance rate of 99%, the business entity with a contract performance rate of 99% meets the access conditions.

[0042] See Figure 1, the buyer and seller are not restricted in their trading roles due to the type of business entity. The buyer unit includes users with electricity purchase needs, electricity retailers, new entities, and power generation enterprises (with contracts signed and having repurchase or reduction requirements); the seller unit includes users with electricity sales needs, electricity retailers, new entities, and power generation enterprises (with contracts signed and having repurchase or reduction requirements).

[0043] See Figure 2 , each hour is regarded as an independent trading object. Each trading cycle takes the electricity quantity of each time period as the minimum object, generally 24 hours. The annual trading object is the electricity quantity of each time period in the following year, and the trading is organized as a whole on an annual or monthly basis and the electricity quantity is evenly decomposed into each time period of each day. The monthly trading object is the electricity quantity of each time period in the next month, and the trading is organized as a whole on a monthly basis and the electricity quantity is evenly decomposed into each day. On the basis of the annual result, it is sold or bought in the monthly market. The within-month trading object is the electricity quantity of each time period within the month, and the trading is organized as a whole on a ten-day or weekly basis and the electricity quantity is evenly decomposed into each day. It is organized on a daily rolling basis, and the object is the electricity quantity of each time period of each day from T+2 day to the specified day.

[0044] During the transition period, trading is conducted based on the total electricity quantity of the year and month, but it is decomposed into the smallest time periods according to the rules. It should be particularly noted that within-month trading can be organized on a daily rolling basis, and the trading object is the electricity quantity of each time period of each day from T+2 day to the specified day. "T" represents "Trading Day". "T+2 day" refers to the second trading day after the trading day. For example, if T day is Monday, then T+2 day is Wednesday.

[0045] The on-site trading opens at fixed cycles and fixed times. Annual and monthly trading is organized regularly and disclosed in advance through the trading calendar; within-month trading is organized at fixed time periods on working days. The on-site trading is organized through a rolling matching method. Business entities can submit electricity purchase and sales declaration information within a fixed time, and the platform conducts rolling matching transactions according to the principles of price priority and time priority. The off-site trading is open continuously. The bilateral negotiation trading of non-standardized contracts is regarded as off-site trading, and the off-site trading is open at fixed time periods every working day. See Figure 3 as shown.

[0046] Step 2: Determine the trading direction of the declaration node. The business entity determines the declared electricity quantity and declared price of the business entity with access conditions according to the market constraints and price constraints of the declared node it belongs to.

[0047] Only the business entities admitted in Step 1 can enter Step 2 for business entity trading declarations, and the quantity and price of the trading declarations are restricted by the declared node to which the business entity belongs.

[0048] The centralized call auction in the exchange trading is consistent with the rolling call auction declaration content. The business entity can submit multiple pairs of electricity quantity and electricity price information (quantity-price pairs). The trading direction is controlled by T+1, that is, only one direction is allowed on the trading day. The electricity quantity declared by the business entity is restricted by the declaration node and the type of business entity, and the electricity price declared by the business entity is restricted by the price at the declaration node. The market constraint parameters include the upper and lower limits of electricity quantity and price, the peak-valley price difference coefficient, the number of bidding steps, the electricity quantity limit adjustment coefficient, the arbitrage coefficient, the minimum variable price, and the minimum variable electricity quantity.

[0049] Step 3: Construct the path set for the inter-provincial standardized contract trading. Based on the path set, use the rolling call auction matching algorithm to search for declaration records in the direction opposite to the trading direction, so as to perform matching and calculation on the declared electricity quantity and declared price of the determined business entity, determine the transaction closing price, and convert them to the declaration node respectively. After the trading clearing is completed, coordinated clearing is carried out to form the final result, and the final result is released to the business entity.

[0050] See Figure 4 , the clearing process is based on grid data to construct the standard node and network topology model. The path set for the inter-provincial standardized contract trading is constructed through depth-first traversal and path planning. The components of this path set are unique, that is, there are no completely duplicate channels, and its comprehensive transmission price is calculated to form parameters such as the path set, the corresponding transmission price, network loss, and distribution coefficient, and they are publicly disclosed. The construction of the path set can be based on the existing path planning, such as all paths like AC channel 1, UHV channel 1, AC section n-. Starting from the sending province node, traverse the paths and finally reach the receiving province node to traverse all the path sets.

[0051] The clearing calculation process uses rolling call auction for matching. Specifically, when each trading declaration is submitted, according to the declaration node where the business entity declares and the trading direction, search for the following data in the existing declaration records in the opposite trading direction to determine the transaction volume and price:

[0052] ① Obtain the declaration records connected to this trading declaration, which means it has been completed in the previous path set construction;

[0053] ② Convert the counterparty quotes to the declaration node where the quote is located according to the path, and sort them in the order of the converted buyer price from high to low and the seller price from low to high;

[0054] ③ In the sorted order, judge whether the following conditions are simultaneously met: (a) The converted buyer price is greater than or equal to the seller price; (b) The path ATC meets the minimum value of the declared electricity quantity of the buyer and the seller;

[0055] ④If the above two conditions are met, the transactions will be considered concluded in sequence according to the sorting. The transaction volume is the minimum of the Available Transfer Capability (ATC) of path ATC and the declared volumes of the buyer and the seller until all the volumes meeting the transaction conditions are concluded. The transaction price is determined according to the matching pricing method. It should be noted that after a transaction is concluded, the positions of each market participant and the ATC of relevant lines need to be updated in real time.

[0056] The matching pricing method adopts one of the following two methods:

[0057] ①Take the declared price of the party with an earlier declaration time as the transaction price and convert it to the declared node respectively;

[0058] ②Match the declared prices of the two parties and convert them to the declared nodes respectively.

[0059] The matching method is as follows:

[0060] (1) When the converted buyer's bid price is greater than the converted seller's bid price, the matching transaction volume is the smaller of the declared volumes of the paired parties, and the transaction price is determined by the price difference of the paired parties' bids multiplied by the coefficient K2.

[0061] When the buyer's bid price P 买方报价 is greater than the seller's bid price P 卖方报价 , the transaction prices P 买方 , P 卖方 of the buyer and the seller are respectively:

[0062] P Δ ’ = P 买方报价 - P 卖方报价

[0063] P 买方 = P 买方报价 - K2 × P Δ ’

[0064] P 卖方 = P 卖方报价 + (1 - K2) × P Δ ’

[0065] Among them, K2 is the coefficient of the price difference of the bids. This coefficient generally takes 0.5. When necessary, it can be determined according to the supply-demand ratio or decided by the Power Market Management Committee, and is announced by the Beijing Power Exchange Center in the market trading announcement. The quantity and price of the trading clearing result are used as the preliminary transaction result for coordinated clearing. See Figure 5, in combination with the channel section limit situation, check the over-limit situation of the channel section. If the check fails, adjust the pre-trade result curve pair of the transaction, then apply the clearing calculation to obtain the detailed transaction results, and check again; if the check passes, push to the national dispatching center and release the transaction results to the market entities.

[0066] The beneficial effects of the present invention are as follows. Compared with the prior art, the present invention provides an inter-provincial power trading method and system based on standardized contracts, which improves the trading operation level. The standardized contract trading mode has flexibility and adaptability. By forming a power market design language, the standardization of power market commodities is realized.

[0067] The present invention can be a system, a method, and / or a computer program product. The present invention also discloses an inter-provincial power trading system based on the aforementioned inter-provincial power trading method based on standardized contracts, including:

[0068] A trading organization module, which is used to automatically judge whether the access conditions are met according to the characteristics of the market entities, take the electricity quantity of each time period as the minimum target, determine the trading targets within a month, annual trading targets, and monthly trading targets according to the corresponding time units, and conduct on-site trading and off-site trading based on standardized contracts;

[0069] A trading declaration module, which is used to determine the trading direction of the declaration node, and determine the declared electricity quantity and declared price of the market entities that meet the access conditions according to the market constraints and price constraints of the affiliated declaration node;

[0070] A trading clearing module, which is used to construct a path set for inter-provincial standardized contract trading. Based on the path set, use a rolling matching algorithm to search for declaration records in the direction opposite to the trading direction to perform matching and clearing calculations on the determined declared electricity quantity and declared price, determine the trading transaction price, and convert it to the declaration node respectively. After the trading clearing is completed, coordinated clearing is performed to form the final result, and the final result is released to the market entities.

[0071] Based on the spirit of the present invention, those skilled in the art can easily think that a computer program product can be obtained based on the aforementioned inter-provincial power trading method based on standardized contracts. The computer program product can include a computer-readable storage medium, on which computer-readable program instructions for enabling a processor to implement various aspects of the present disclosure are uploaded. That is, the present application also includes a terminal, including a processor and a storage medium; the storage medium is used to store instructions; the processor is used to operate according to the instructions to execute the steps of the aforementioned inter-provincial power trading method based on standardized contracts.

[0072] A computer-readable storage medium can be a tangible device that can hold and store instructions for use by an instruction execution device. A computer-readable storage medium may be, for example - but not limited to - an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disc (DVD), a memory stick, a floppy disk, a mechanically encoded device, such as a punched card or raised structures in grooves having instructions stored thereon, and any suitable combination of the foregoing. The computer-readable storage medium as used herein is not construed as an instantaneous signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated through a waveguide or other transmission medium (e.g., an optical pulse through an optical fiber cable), or an electrical signal transmitted through a wire.

[0073] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to various computing / processing devices, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network may include a copper transmission cable, an optical fiber transmission, a wireless transmission, a router, a firewall, a switch, a gateway computer, and / or an edge server. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in each computing / processing device.

[0074] Computer program instructions for performing the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine - related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object - oriented programming languages such as Smalltalk, C++, etc., and conventional procedural programming languages such as the "C" language or similar programming languages. The computer - readable program instructions may be executed entirely on the user's computer, partially on the user's computer, executed as a stand - alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider). In some embodiments, by using the state information of the computer - readable program instructions to customize an electronic circuit, such as a programmable logic circuit, a field - programmable gate array (FPGA), or a programmable logic array (PLA), the electronic circuit can execute the computer - readable program instructions to implement various aspects of the present disclosure.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific embodiments of the present invention. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. An inter-provincial electricity trading method based on standardized contracts, characterized in that, It includes the following steps: Step 1: Automatically determine whether the access conditions are met according to the characteristics of the business entity. Taking the electricity quantity of each time period as the minimum target, determine the trading targets within a month, annual trading targets, and monthly trading targets according to the corresponding time unit, and conduct on-exchange and over-the-counter transactions based on standardized contracts; Step 2: Determine the trading direction of the declaration node, and determine the declared electricity quantity and declared price of the business entities meeting the access conditions according to the market constraints and price constraints of the affiliated declaration node; Step 3: Construct a path set for inter-provincial standardized contract trading. Based on the path set, use the rolling matching algorithm to search for declaration records in the direction opposite to the trading direction to perform matching and calculation on the determined declared electricity quantity and declared price, determine the transaction closing price, and convert it to the declaration node respectively. After the transaction clearing is completed, perform coordinated clearing to form the final result and release the final result to the business entity.

2. The inter-provincial power trading method based on standardized contracts according to claim 1, wherein The characteristics of the business entity include power business license, contract performance rate, performance bond, energy efficiency and environmental protection requirements, total assets, credit rating, business scope, or industry affiliation.

3. The inter-provincial power trading method based on standardized contracts according to claim 2, wherein, The determination of the trading targets within a month, annual trading targets, and monthly trading targets according to the corresponding time unit further includes: Determine the annual trading target as the electricity quantity of each time period in the next year, organize trading as a whole by year or month and evenly decompose the electricity quantity to each time period of each day; determine the monthly trading target as the electricity quantity of each time period in the next month, organize trading as a whole by month and evenly decompose the electricity quantity to each day, and sell or buy in the monthly market based on the annual result. Determine the trading target within a month as the electricity quantity of each time period within a month, organize trading as a whole by ten-day period or week and evenly decompose the electricity quantity to each day.

4. The inter-provincial power trading method based on standardized contracts according to claim 3, wherein The parameters of the market constraints include upper and lower limits of electricity price, peak-valley price difference coefficient, number of quotation steps, electricity quantity limit adjustment coefficient, arbitrage coefficient, minimum change price, or minimum change electricity quantity.

5. The inter-provincial power trading method based on standardized contracts according to claim 4, characterized in that, The use of the rolling matching algorithm to search for declaration records in the direction opposite to the trading direction to perform matching and calculation on the determined declared electricity quantity and declared price further includes: According to each trading declaration's declaration node and trading direction, search for the following data in the existing declaration records in the opposite trading direction and perform matching and calculation: ① Obtain the declaration records connected to this trading declaration, indicating that it has been completed in the previous path set construction; ② Convert the counterparty quotes to the declaration node where the quote is located according to the path respectively, and sort them in descending order of the converted buyer price and ascending order of the converted seller price; ③ In the sorted order, determine whether the following conditions are simultaneously met: (a) The converted buyer price is greater than or equal to the seller price; (b) The path ATC meets the minimum value of the declared electricity quantities of the buyer and the seller; ④ If the above two conditions are met, then consider it a deal in sequence according to the sorting. The deal electricity quantity is the minimum value of the path ATC, the declared electricity quantities of the buyer and the seller, until all the electricity quantities meeting the deal conditions are traded. After a deal is reached, the positions of each business entity and the ATC of the relevant lines are updated in real time.

6. An inter-provincial electricity trading system based on standardized contracts, characterized in that, It includes: A trading organization module, which is used to automatically determine whether the access conditions are met according to the characteristics of the business entity, take the electricity quantity of each time period as the minimum target, determine the trading targets within a month, annual trading targets, and monthly trading targets according to the corresponding time units, and conduct on-exchange and over-the-counter transactions based on standardized contracts; A trading declaration module, which is used to determine the trading direction of the declaration node, and determine the declared electricity quantity and declared price of the business entities meeting the access conditions according to the market constraints and price constraints of the affiliated declaration node; A trading clearing module, which is used to construct a path set for inter-provincial standardized contract trading. Based on the path set, a rolling matching algorithm is used to search for declaration records in the direction opposite to the trading direction to perform matching and calculation on the determined declared electricity quantity and declared price, determine the trading transaction price, and convert it to the declaration node respectively. After the trading clearing is completed, coordinated clearing is carried out to form the final result and release the final result to the business entity.

7. The inter-provincial power trading system based on standardized contracts according to claim 6, characterized in that The characteristics of the business entity include power business license, contract performance rate, performance bond, energy efficiency and environmental protection requirements, total assets, credit rating, business scope, or industry affiliation.

8. The inter-provincial electricity trading system based on standardized contracts according to claim 7, characterized in that, The trading organization module is further used for: Determine the annual trading target as the electricity quantity of each time period in the next year, organize trading as a whole by year or month, and evenly decompose the electricity quantity to each time period of each day; determine the monthly trading target as the electricity quantity of each time period in the next month, organize trading as a whole by month, and evenly decompose the electricity quantity to each day, and sell or buy in the monthly market based on the annual result. Determine the trading target within a month as the electricity quantity of each time period within a month, organize trading as a whole by ten-day period or week, and evenly decompose the electricity quantity to each day.

9. The inter-provincial power trading system based on standardized contracts according to claim 8, characterized in that, The parameters of the market constraints include upper and lower limits of electricity price, peak-valley price difference coefficient, number of quotation steps, electricity quantity limit adjustment coefficient, arbitrage coefficient, minimum price change, or minimum electricity quantity change.

10. The inter-provincial power trading system based on standardized contracts according to claim 9, wherein, The trading clearing module is further used for: According to each trading declaration and the declaration node and trading direction, search for the following data in the existing declaration records in the opposite trading direction and perform matching and calculation: ① Obtain the declaration records connected to this trading declaration, indicating that it has been completed in the previous path set construction; ② Convert the counterparty quotations to the declaration node where the quotation is located according to the path, and sort them in the order of the highest converted buyer price and the lowest converted seller price; ③ In the sorted order, judge whether the following conditions are simultaneously met: (a) The converted buyer price is greater than or equal to the seller price; (b) The path ATC meets the minimum value of the declared electricity quantity of the buyer and the seller; ④ If the above two conditions are met, then consider it a deal in sequence according to the sorting. The deal electricity quantity is the minimum value of the path ATC, the declared electricity quantity of the buyer and the seller, until all the electricity quantity meeting the deal conditions is traded. After a deal is reached, the positions of each business entity and the ATC of the relevant lines are updated in real time.

11. A terminal, including a processor and a storage medium; characterized in that: The storage medium is used to store instructions; The processor is used to operate according to the instructions to execute the steps of the inter-provincial power trading method based on standardized contracts according to any one of claims 1-5.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, the steps of the inter-provincial power trading method based on standardized contracts according to any one of claims 1-5 are implemented.

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