Channel ATC locking method and system supporting inter-provincial medium-and-long-term high-frequency transactions

Abstract

The invention belongs to the technical field of power transaction, and discloses a channel ATC locking method and system supporting inter-provincial medium and long term high-frequency transactions, and the method comprises the steps: obtaining the transaction time of each transaction in a power transaction network, and setting ATC locking identifiers of a power transmission channel at the transaction starting time and the transaction ending time according to the transaction time; reading an ATC locking identifier of the power transmission channel, and judging whether the locking state of the power transmission channel involved in the transaction is a non-locking state or not; and calculating the residual ATC of the channel for the transaction in the non-locking state, and unlocking the transaction channel. According to the method, different transactions relate to different power transmission channels, and related power transmission channels are locked as required instead of all channels, so that efficient operation and organization of the transactions are facilitated; a channel ATC locking identifier design and a library table structure are provided, a locking identifier is bound with a power transmission channel ID and transaction time, the range of a locked channel is minimized as much as possible, and high-frequency organization of interprovincial medium and long term transactions is also facilitated.

Description

Technical Field

[0001] The invention belongs to the field of electric power market, and in particular relates to a locking method and system for a channel ATC supporting medium- and long-term high-frequency transactions between provinces. Background Art

[0002] Due to the physical execution characteristics of inter-provincial medium- and long-term transactions, transactions of different varieties need to consider the ATC of inter-provincial AC and DC channels. With the increase in the scale of new energy installed capacity, the frequency of organizing inter-provincial medium- and long-term transactions is also increasing, and has been pushed from annual and monthly transactions to weekly transactions. There are many types of inter-provincial medium- and long-term transactions, including bilateral negotiated transactions, rolling matching transactions, and multi-channel centralized bidding transactions. Due to the physical execution characteristics of inter-provincial medium- and long-term transactions, transactions of different varieties need to consider the ATC of inter-provincial AC and DC channels during the clearing or review process to ensure that the transaction results can be physically executed. With the increase in the frequency of transactions, it is inevitable that transactions of different varieties will be carried out simultaneously. If different transactions need to use the same transmission channel at the same time, the capacity of the transmission channel will be miscalculated and the clearing results will be wrong. Summary of the invention

[0003] The purpose of the present invention is to provide a locking method and system for channel ATC that supports medium- and long-term high-frequency transactions between provinces, so as to solve the problem that the capacity of the transmission channel is miscalculated and the clearing result is erroneous.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] In a first aspect, the present invention provides a method for locking a channel ATC that supports medium- and long-term high-frequency transactions between provinces, comprising:

[0006] Obtain the transaction time of each transaction in the power trading network, and set the ATC lock mark of the transmission channel at the transaction start and end time according to the transaction time;

[0007] Read the ATC lock mark of the power transmission channel to determine whether the lock status of the power transmission channel involved in the transaction is unlocked;

[0008] Calculate the remaining ATC of the channel for transactions in the unlocked state and unlock the transaction channel.

[0009] Optionally, according to the transaction time, set the ATC lock mark of the transmission channel at the transaction start and end time, including:

[0010] The complete path from the power station to the transmission network and then to the receiving end is used as the transaction access path to determine the transaction access path. According to the access path of each transaction, all DC channels and AC sections on the access path are queried. Then, based on the start and end time of the transaction cycle, before the transaction begins, the current ATC of the relevant transmission channel is queried through the power trading system or the power grid dispatching system; based on the transaction volume and the transmission capacity of the transmission channel, the ATC required for the transaction is calculated, and the set lock mark is updated in real time to the power trading system or the power grid dispatching system.

[0011] Optional, ATC lockout identification, including:

[0012] Section / interconnection line name, section / interconnection line identifier, lock start time, lock end time, lock status and transaction ID.

[0013] Optionally, reading the ATC lock mark of the power transmission channel to determine whether the lock state of the power transmission channel involved in the transaction is unlocked includes:

[0014] At the start time of the transaction, the ATC lock mark of the relevant transmission channel is set to the locked state, and the binary flag is set to 1; at the end time of the transaction, the lock mark is restored to the unlocked state, and the binary flag is set to 0. When the lock state is 0, it is in the unlocked state.

[0015] Optionally, read the ATC lock mark of the transmission channel, and when it is determined that the lock status of the transmission channel involved in the transaction is locked, the transaction cannot be cleared immediately and enters the queue. After all channels related to the transaction are unlocked, the transaction enters the clearing stage again.

[0016] Optionally, calculate the remaining ATC of the channel for the transaction in the unlocked state and unlock the transaction channel, including:

[0017] Clear according to the trading rules, deduct the channel capacity based on the clearing result, calculate the remaining ATC of the channel, and unlock the trading channel, including:

[0018] ATC=TTC-TRM-ETC-CBM

[0019] TTC is the maximum transmission capacity of the line, which is a value given by the power dispatcher;

[0020] TRM and CBM are transmission reliability margin and capacity benefit margin, respectively, and are obtained by multiplying TTC by a fixed proportionality coefficient;

[0021] ETC is the space occupied by completed transactions on the channel, which is calculated by adding the current clearing result to the previous transaction result multiplied by the flow coefficient of the channel;

[0022] ETC = all completed transactions on the channel * the flow coefficient of the channel.

[0023] In a second aspect, the present invention provides a locking system for a channel ATC that supports medium- and long-term high-frequency transactions between provinces, including:

[0024] The lock mark setting module is used to obtain the transaction time of each transaction in the power trading network, and set the ATC lock mark of the transmission channel at the transaction start and end time according to the transaction time;

[0025] A locking status judgment module is used to read the ATC locking mark of the power transmission channel and judge whether the locking status of the power transmission channel involved in the transaction is unlocked;

[0026] The calculation output module is used to calculate the remaining ATC of the channel for the transaction in the unlocked state and unlock the transaction channel.

[0027] Optionally, calculate the remaining ATC of the channel for the transaction in the unlocked state and unlock the transaction channel, including:

[0028] Clear according to the trading rules, deduct the channel capacity based on the clearing result, calculate the remaining ATC of the channel, and unlock the trading channel, including:

[0029] ATC=TTC-TRM-ETC-CBM

[0030] TTC is the maximum transmission capacity of the line, which is a value given by the power dispatcher;

[0031] TRM and CBM are transmission reliability margin and capacity benefit margin, respectively, and are obtained by multiplying TTC by a fixed proportionality coefficient;

[0032] ETC is the space occupied by completed transactions on the channel, which is calculated by adding the current clearing result to the previous transaction result multiplied by the flow coefficient of the channel;

[0033] ETC = all completed transactions on the channel * the flow coefficient of the channel.

[0034] In a third aspect, the present invention provides a computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the processor implements the steps of a method for locking a channel ATC that supports medium- and long-term high-frequency transactions between provinces.

[0035] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of a method for locking a channel ATC that supports medium- and long-term high-frequency transactions between provinces.

[0036] Compared with the prior art, the present invention has the following technical effects:

[0037] The present invention locks the relevant transmission channels involved in the transaction before the transaction is cleared or reviewed. After the clearing is completed, the remaining ATC of the relevant transmission channels is calculated, and then the relevant transmission channels are unlocked. Considering that different transactions involve different transmission channels, the relevant transmission channels are locked on demand instead of locking all channels, which is more conducive to the efficient operation and organization of transactions. The channel ATC locking mark design and library table structure are proposed. The locking mark is bound to the transmission channel ID and the transaction time, which minimizes the scope of the locked channels as much as possible, and is also conducive to the high-frequency organization of medium- and long-term transactions between provinces.

[0038] The present invention reduces manual intervention and errors by automatically obtaining the transaction time and setting the ATC lock mark, making the transaction process more automated and efficient. At the same time, the lock mechanism ensures that the transaction has exclusive access to the transmission channel within the predetermined time, avoiding transaction delays or cancellations due to conflicts.

[0039] The present invention includes all DC channels and AC sections on the transaction access path into the management scope, ensuring the integrity and consistency of the transaction path. By accurately calculating the ATC required for the transaction and locking it before the transaction begins, it effectively prevents transaction failure or interruption caused by insufficient transmission channel capacity.

[0040] The ATC lock mark of the present invention contains rich information (such as section / tie line name, mark, lock time, lock status, transaction ID, etc.), which provides a comprehensive resource status view for the power trading system or power grid dispatching system. By updating the lock mark in real time, the system can dynamically adjust the allocation of transmission channels to optimize resource utilization.

[0041] The present invention sets the ATC lock mark to a locked state at the start time of the transaction and restores it to an unlocked state at the end time of the transaction. This strict locking and unlocking mechanism effectively prevents illegal occupation or misoperation of the power transmission channel. At the same time, when the power transmission channel involved in the transaction is in a locked state, the transaction cannot be cleared immediately, but enters a queue waiting, which further enhances the security and stability of the system.

[0042] The present invention takes into account the transmission reliability margin and capacity benefit margin (TRM and CBM). The introduction of these margins reserves sufficient flexibility for the system to cope with emergencies and uncertainties. At the same time, by calculating the channel residual ATC and updating it in real time, the system can quickly respond to market changes and meet different transaction needs.

[0043] In summary, this technical solution has demonstrated significant technical effects in improving transaction efficiency, enhancing transaction stability, optimizing resource allocation, improving system security, promoting fair competition in the electricity market, and enhancing system flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a flow chart of the present invention.

[0045] Figure 2 This is a system structure diagram of the present invention.

[0046] Figure 3 This is a logic block diagram of the present invention. DETAILED DESCRIPTION

[0047] The present invention is further described below in conjunction with the accompanying drawings:

[0048] See also Figures 1 to 3 In order to support the high-frequency organization and development of medium- and long-term transactions between provinces, it is necessary to resolve the conflict in the use of channels between transactions of different varieties. The present invention proposes a method for locking the channel ATC that supports medium- and long-term high-frequency transactions between provinces. Before the transaction is cleared or reviewed, the relevant power transmission channels involved in the transaction are locked. After the clearing is completed, the remaining ATC of the relevant power transmission channels is calculated, and then the relevant power transmission channels are unlocked.

[0049] Embodiment 1:

[0050] See also Figure 1 The present invention provides a locking method for the channel ATC that supports medium- and long-term high-frequency transactions between provinces, which specifically includes:

[0051] Obtain the transaction time of each transaction in the power trading network, and set the ATC lock mark of the transmission channel at the transaction start and end time according to the transaction time;

[0052] Read the ATC lock mark of the power transmission channel to determine whether the lock status of the power transmission channel involved in the transaction is unlocked;

[0053] Calculate the remaining ATC of the channel for the transaction in the unlocked state and unlock the transaction channel.

[0054] The technical solution of the present invention proposes a locking method for the ATC (Available Transfer Capability) of the transmission channel in the context of supporting medium- and long-term high-frequency power transactions between provinces. The method aims to improve the efficiency, stability and security of the power trading network by finely managing the availability and transaction time of the transmission channel.

[0055] By obtaining the transaction time in real time and setting the ATC lock mark accordingly, it can ensure that the relevant transmission channel is automatically locked at the start of the transaction, avoiding interruption or impact of other non-related transactions during the transaction execution. This instant locking mechanism reduces the need for manual intervention, speeds up the transaction process, and improves overall transaction efficiency.

[0056] The locking and unlocking mechanism in the present invention ensures the exclusivity of the transmission channel during the transaction, reducing the conflicts and uncertainties caused by multiple transactions occupying the same channel at the same time. This stability is crucial to ensure the continuity and reliability of power supply, especially in high-frequency trading environments.

[0057] When the transmission channel is judged to be unlocked, the remaining ATC of the channel is calculated and unlocked. This process not only ensures the effective use of resources, but also allows the system to dynamically adjust the transmission capacity according to real-time conditions to meet the needs of different transactions. This dynamic optimization capability helps to improve the flexibility and responsiveness of the entire power trading network.

[0058] By precisely controlling the locking and unlocking of the transmission channel, this method helps prevent safety issues such as power transmission interruption or overload caused by improper operation or system failure. At the same time, the real-time calculation of the remaining ATC of the channel also reserves sufficient margin for the system to cope with emergencies, further enhancing the safety and stability of the system.

[0059] Example 2, please refer to Figure 3

[0060] More specifically, the present invention provides a method for locking a channel ATC that supports medium- and long-term high-frequency transactions between provinces, including the following steps:

[0061] Obtain the transaction time of each transaction in the power trading network, and set the ATC lock mark of the transmission channel at the transaction start and end time according to the transaction time;

[0062] According to the access path of each transaction, query all DC channels and AC sections on the access path, and then set the ATC lock mark of the relevant transmission channel at the start and end time of the transaction according to the start and end time of the transaction cycle.

[0063] The complete path from the power station to the transmission network and then to the receiving end is used as the transaction access path to determine the transaction access path. According to the access path of each transaction, all DC channels and AC sections on the access path are queried. Then, based on the start and end time of the transaction cycle, before the transaction begins, the current ATC of the relevant transmission channel is queried through the power trading system or the power grid dispatching system; based on the transaction volume and the transmission capacity of the transmission channel, the ATC required for the transaction is calculated, and the set lock mark is updated in real time to the power trading system or the power grid dispatching system.

[0064] The ATC lock mark includes: section / interconnection line name, section / interconnection line identification, lock start time, lock end time, whether locked and transaction ID.

[0065] Read the ATC lock mark of the power transmission channel to determine whether the lock status of the power transmission channel involved in the transaction is unlocked. When the lock status is 0, it is unlocked.

[0066] Read the ATC lock mark of the transmission channel. When it is determined that the lock status of the transmission channel involved in the transaction is locked, the transaction cannot be cleared immediately and enters the queue. After all channels related to the transaction are unlocked, the transaction enters the clearing stage again.

[0067] Calculate the remaining ATC of the channel for the transaction in the unlocked state and unlock the transaction channel.

[0068] Clear according to the trading rules, deduct the channel capacity based on the clearing results, calculate the remaining ATC of the channel, and unlock the trading channel.

[0069] Clear according to the trading rules, deduct the channel capacity based on the clearing result, calculate the remaining ATC of the channel, and unlock the trading channel, including:

[0070] ATC=TTC-TRM-ETC-CBM

[0071] TTC is the maximum transmission capacity of the line, which is a value given by the power dispatcher;

[0072] TRM and CBM are transmission reliability margin and capacity benefit margin, respectively, and are obtained by multiplying TTC by a fixed proportionality coefficient;

[0073] ETC is the space occupied by completed transactions on the channel, which is calculated by adding the current clearing result to the previous transaction result multiplied by the flow coefficient of the channel;

[0074] ETC = all completed transactions on the channel * the flow coefficient of the channel.

[0075] In order to support the high-frequency organization and development of medium- and long-term transactions between provinces, it is necessary to resolve conflicts in the use of channels between transactions of different varieties. Before the transaction is cleared or reviewed, the relevant transmission channels involved in the transaction are locked. After the clearing is completed, the remaining ATC of the relevant transmission channels is calculated, and then the relevant transmission channels are unlocked. The specific process is as follows:

[0076] (1) Channel ATC locking process design

[0077] Before organizing medium- and long-term transactions between provinces, the Beijing Power Exchange will calculate and publish the ATC of the transmission channel, and market entities will declare it on demand. After the declaration is completed, it will enter the clearing stage. Before clearing, read the ATC lock mark of the transaction-related channel first. If it is in a locked state, the transaction cannot be cleared immediately and enters the queue; after all the transaction-related channels are unlocked, the transaction will enter the clearing stage again, first lock the relevant transaction channels, then clear according to the transaction rules, and finally deduct the channel capacity according to the clearing result, calculate the remaining ATC of the channel, and unlock the transaction channel.

[0078] (2) Design of ATC lock mark for remaining available transmission capacity of transmission channel

[0079] Since the transmission capacity of the transmission channel is linked to the trading period, the channel ATC lock mark must be related to the trading period. According to the access path of each transaction, first query the DC channels and AC sections on all access paths, and then set the lock flag of the relevant transmission channel at the start and end time of the transaction according to the start and end time of the transaction cycle.

[0080] In yet another embodiment of the present invention, a locking system for a channel ATC supporting medium- and long-term high-frequency transactions between provinces is provided, which can be used to implement the above-mentioned locking method for a channel ATC supporting medium- and long-term high-frequency transactions between provinces. Specifically, the system includes:

[0081] The lock mark setting module is used to obtain the transaction time of each transaction in the power trading network, and set the ATC lock mark of the transmission channel at the transaction start and end time according to the transaction time;

[0082] A locking status judgment module is used to read the ATC locking mark of the power transmission channel and judge whether the locking status of the power transmission channel involved in the transaction is unlocked;

[0083] The calculation output module is used to calculate the remaining ATC of the channel for the transaction in the unlocked state and unlock the transaction channel.

[0084] The division of modules in the embodiments of the present invention is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present invention may be integrated into one processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0085] In another embodiment of the present invention, a computer device is provided, the computer device including a processor and a memory, the memory is used to store a computer program, the computer program includes program instructions, and the processor is used to execute the program instructions stored in the computer storage medium. The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc., which are the computing core and control core of the terminal, which are suitable for implementing one or more instructions, and are specifically suitable for loading and executing one or more instructions in the computer storage medium to implement the corresponding method flow or corresponding function; the processor described in the embodiment of the present invention can be used to support the operation of the locking method of the channel ATC for medium- and long-term high-frequency transactions between provinces.

[0086] In another embodiment of the present invention, the present invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a computer device for storing programs and data. It is understandable that the computer-readable storage medium here can include both built-in storage media in a computer device and, of course, extended storage media supported by the computer device. The computer-readable storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by a processor are also stored in the storage space, and these instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the corresponding steps of the locking method of the channel ATC supporting medium- and long-term high-frequency transactions between provinces in the above embodiment.

[0087] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0088] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0089] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0090] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. The locking method of the channel ATC that supports medium- and long-term high-frequency transactions between provinces is characterized by: include: Obtain the transaction time of each transaction in the power trading network, and set the ATC lock mark of the transmission channel at the transaction start and end time according to the transaction time; Read the ATC lock mark of the power transmission channel to determine whether the lock status of the power transmission channel involved in the transaction is unlocked; Calculate the remaining ATC of the channel for transactions in the unlocked state and unlock the transaction channel.

2. The locking method of the channel ATC supporting medium- and long-term high-frequency transactions between provinces according to claim 1 is characterized in that: According to the transaction time, set the ATC lock mark of the transmission channel at the transaction start and end time, including: The complete path from the power station to the transmission network and then to the receiving end is used as the transaction access path to determine the transaction access path. According to the access path of each transaction, all DC channels and AC sections on the access path are queried. Then, based on the start and end time of the transaction cycle, before the transaction begins, the current ATC of the relevant transmission channel is queried through the power trading system or the power grid dispatching system; based on the transaction volume and the transmission capacity of the transmission channel, the ATC required for the transaction is calculated, and the set lock mark is updated in real time to the power trading system or the power grid dispatching system.

3. The locking method of the channel ATC supporting medium- and long-term high-frequency transactions between provinces according to claim 2 is characterized in that: ATC lock mark, including: Section / interconnection line name, section / interconnection line identifier, lock start time, lock end time, lock status and transaction ID.

4. The locking method of the channel ATC supporting medium- and long-term high-frequency transactions between provinces according to claim 2 is characterized in that: Read the ATC lock mark of the power transmission channel to determine whether the lock status of the power transmission channel involved in the transaction is unlocked, including: At the start time of the transaction, the ATC lock mark of the relevant transmission channel is set to the locked state, and the binary flag is set to 1; at the end time of the transaction, the lock mark is restored to the unlocked state, and the binary flag is set to 0. When the lock state is 0, it is in the unlocked state.

5. The locking method of the channel ATC supporting medium- and long-term high-frequency transactions between provinces according to claim 2 is characterized in that: Read the ATC lock mark of the transmission channel. When it is determined that the lock status of the transmission channel involved in the transaction is locked, the transaction cannot be cleared immediately and enters the queue. After all channels related to the transaction are unlocked, the transaction enters the clearing stage again.

6. The locking method of the channel ATC supporting medium- and long-term high-frequency transactions between provinces according to claim 1 is characterized in that: Calculate the remaining ATC of the channel for the unlocked transaction and unlock the transaction channel, including: Clear according to the trading rules, deduct the channel capacity based on the clearing result, calculate the remaining ATC of the channel, and unlock the trading channel, including: ATC=TTC-TRM-ETC-CBM TTC is the maximum transmission capacity of the line, which is a value given by the power dispatcher; TRM and CBM are transmission reliability margin and capacity benefit margin, respectively, and are obtained by multiplying TTC by a fixed proportionality coefficient; ETC is the space occupied by completed transactions on the channel, which is calculated by adding the current clearing result to the previous transaction result multiplied by the flow coefficient of the channel; ETC = all completed transactions on the channel * the flow coefficient of the channel.

7. The locking system of the channel ATC that supports medium- and long-term high-frequency transactions between provinces is characterized by: include: The lock mark setting module is used to obtain the transaction time of each transaction in the power trading network, and set the ATC lock mark of the transmission channel at the transaction start and end time according to the transaction time; A locking status judgment module is used to read the ATC locking mark of the power transmission channel and judge whether the locking status of the power transmission channel involved in the transaction is unlocked; The calculation output module is used to calculate the remaining ATC of the channel for the transaction in the unlocked state and unlock the transaction channel.

8. The locking system of the channel ATC supporting medium- and long-term high-frequency transactions between provinces according to claim 7 is characterized in that: Calculate the remaining ATC of the channel for the unlocked transaction and unlock the transaction channel, including: Clear according to the trading rules, deduct the channel capacity based on the clearing result, calculate the remaining ATC of the channel, and unlock the trading channel, including: ATC=TTC-TRM-ETC-CBM TTC is the maximum transmission capacity of the line, which is a value given by the power dispatcher; TRM and CBM are transmission reliability margin and capacity benefit margin, respectively, and are obtained by multiplying TTC by a fixed proportionality coefficient; ETC is the space occupied by completed transactions on the channel, which is calculated by adding the current clearing result to the previous transaction result multiplied by the flow coefficient of the channel; ETC = all completed transactions on the channel * the flow coefficient of the channel.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, it implements the steps of the method for locking the channel ATC that supports medium- and long-term high-frequency transactions between provinces as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by the processor, the steps of the method for locking the channel ATC supporting medium- and long-term high-frequency transactions between provinces as described in any one of claims 1 to 7 are implemented.

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