A relay protection command conversion method, system, electronic device and storage medium

Abstract

The present invention relates to the field of relay protection technology, and discloses a relay protection command conversion method, system, electronic device and storage medium. The system obtains a level change signal of an input terminal and a terminal number of the input terminal through a sampling unit, and then identifies a fiber optic interface number and a message format template according to the terminal number of the input terminal through a configuration unit, generates initial message information from the level change signal using the message format template, and then associates the input terminal with a fiber optic interface corresponding to the matched fiber optic interface number through a virtual circuit, so that the initial message information is sent to the corresponding fiber optic interface through the input terminal, and identifies device information of a second device end externally connected to the fiber optic interface, encapsulates the device information into the initial message information, and sends the final message information to the second device end through the fiber optic interface, thereby facilitating information flow conversion between devices with different types of interfaces.

Description

Technical Field

[0001] The present invention relates to the field of relay protection technology, and in particular to a relay protection command conversion method, system, electronic equipment and storage medium. Background Art

[0002] At present, the protection equipment in the substation mainly includes main transformer protection, line protection, busbar differential protection, etc. For the sake of reliability, the protection devices of 220kV voltage level equipment are all configured in a dual configuration, and the 220kV busbar is a double busbar configuration.

[0003] The busbar protection device in a 220kV substation has interconnected circuits with the 220kV line protection device. Due to the protection device logic, when a busbar fault occurs, the busbar protection device must trip all switches on the busbar, thereby isolating the faulty busbar. When the line protection device operates, to prevent switch failure from preventing the fault point from being isolated, the line protection device must send a start-failure signal to the busbar protection device. Therefore, the line protection device and the busbar protection device must have an indispensable interconnected logic and circuit. These interconnected logic and circuits primarily include the start-failure circuit, the interconnected circuit, and the circuit for blocking the line backup automatic re-transfer function, with information flowing between them.

[0004] Since the protection devices of substations need to be replaced when they reach their service life, the technical transformation project cannot shut down all operating intervals and protection equipment for transformation when replacing the protection devices. In other words, the substation cannot be transformed by shutting down the entire station. It can only be transformed one by one by shutting down one interval or two intervals. This requires that the inter-trip circuits between various protections must also be gradually transformed, and cannot be completed all at once.

[0005] For 220kV substations, in the technical transformation project, the 220kV line protection adopts a transformation mode according to the interval. During the transformation process, it involves the transformation of the inter-trip circuit function (inter-trip circuit command) with the busbar protection device. After the transformation of the line protection device in each line interval is completed, it is necessary to simultaneously improve and realize the inter-trip function between it and the busbar protection.

[0006] However, due to the different interfaces between the old and new protection equipment, the data exchange is not flexible enough, resulting in the need to apply for a power outage of the 220kV voltage level busbar equipment and all line interval equipment in the 220kV substation during the transformation process. This will greatly reduce the reliability of the power grid architecture. If the power grid is affected by external faults at this time, it is very likely that a larger-scale power outage will occur, causing more severe consequences. At the same time, the flexibility of the total power outage transformation mode is poor. Summary of the Invention

[0007] The present invention provides a relay protection command conversion system, method, electronic device and storage medium, which solve the technical problem that the flexibility of data exchange between new and old protection devices is poor due to different interfaces.

[0008] In view of this, a first aspect of the present invention provides a relay protection command conversion system, connected between a first device end and a second device end, comprising: a sampling unit, a configuration unit, a parsing unit and a sending unit;

[0009] The sampling unit includes a plurality of input terminals and a monitoring module;

[0010] The open input terminal is connected to the signal sending end of the first device end, and the open input terminal has a unique terminal number;

[0011] The monitoring module is used to obtain the level change signal of the open input terminal and the terminal number of the open input terminal, and send the level change signal and the terminal number of the open input terminal to the configuration unit;

[0012] The configuration unit is used to match a corresponding configuration file in a preset configuration file database according to the terminal number of the input terminal, the configuration file including the optical fiber interface number and the message format template; and is also used to edit the level change signal according to the message format template to generate initial message information;

[0013] It is also used to associate the input terminal with the optical fiber interface corresponding to the matched optical fiber interface number to form a virtual circuit, and is also used to send the initial message information to the corresponding optical fiber interface through the input terminal;

[0014] The parsing unit is configured to identify device information of a second device end externally connected to the optical fiber interface according to the preset configuration file database, wherein the device information includes an IP address; and is further configured to encapsulate the device information into the initial message information, obtain final message information, and send it to the sending unit;

[0015] The sending unit is used to send the final message information to the second device end through the optical fiber interface.

[0016] Optionally, the open-in terminal uses an optocoupler component.

[0017] Optionally, the system also includes: a jitter determination module, used to obtain the continuous change time of the level change signal, and determine whether the continuous change time is greater than a preset anti-jitter time; if it is determined that the continuous change time is greater than the preset anti-jitter time, the level change signal is determined to be a real signal; if the continuous change time is not greater than the preset anti-jitter time, the level change signal is filtered out.

[0018] Optionally, the system further includes: a time synchronization module and a timestamp module;

[0019] The timing module is used to obtain the occurrence time of the level change signal based on the clock system, and is also used to send the occurrence time to the timestamp module;

[0020] The timestamp module is used to encapsulate the occurrence time into the final message information in a time stamp manner.

[0021] In a second aspect, the present invention provides a relay protection command conversion method for transferring data between a first device end and a second device end, comprising the following steps:

[0022] Acquire a level change signal of a binary input terminal and a terminal number of the binary input terminal, wherein the binary input terminal has a unique terminal number;

[0023] Matching a corresponding configuration file in a preset configuration file database according to the terminal number of the input terminal, the configuration file including the optical fiber interface number and the message format template; editing the level change signal according to the message format template to generate initial message information; and performing a virtual circuit association between the input terminal and the optical fiber interface corresponding to the matched optical fiber interface number;

[0024] Identifying device information of a second device end externally connected to the optical fiber interface according to the preset configuration file database, the device information including an IP address; encapsulating the device information into the initial message information to obtain final message information;

[0025] The final message information is sent to the second device end through the optical fiber interface.

[0026] Optionally, the open-in terminal uses an optocoupler component.

[0027] Optionally, before the step of matching a corresponding configuration file in a preset configuration file database according to the terminal number of the input terminal, wherein the configuration file includes the optical fiber interface number and the message format template, the step further includes:

[0028] Obtaining a continuous change time of the level change signal, and determining whether the continuous change time is greater than a preset anti-shake time; if it is determined that the continuous change time is greater than the preset anti-shake time, determining that the level change signal is a true signal and executing the next step; if the continuous change time is not greater than the preset anti-shake time, filtering the level change signal.

[0029] Optionally, the method further comprises:

[0030] Acquire the occurrence time of the level change signal based on the clock system;

[0031] The occurrence time is encapsulated into the final message information in a time stamp manner.

[0032] In a third aspect, the present invention further provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0033] In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of the above method when executed by a processor.

[0034] It can be seen from the above technical solutions that the present invention has the following advantages:

[0035] The present invention obtains the level change signal of the open-in terminal and the terminal number of the open-in terminal through a sampling unit, and then identifies the optical fiber interface number and the message format template according to the terminal number of the open-in terminal through a configuration unit, generates initial message information from the level change signal using the message format template, and then associates the open-in terminal with the optical fiber interface corresponding to the matched optical fiber interface number through a virtual circuit, so that the initial message information is sent to the corresponding optical fiber interface through the open-in terminal, and identifies the device information of the second device end connected to the outside of the optical fiber interface, encapsulates the device information into the initial message information, and sends the final message information to the second device end through the optical fiber interface, thereby solving the problem of poor flexibility in data intercommunication between the two devices due to different interfaces, and facilitating information flow conversion between devices with different types of interfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic structural diagram of a relay protection command conversion system provided by an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of the connection relationship of the relay protection command conversion system provided in an embodiment of the present invention;

[0038] Figure 3 The present invention provides a flowchart of a relay protection command conversion method. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solutions 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 accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0040] At present, in the transformation of power grids, the different interfaces between old and new protection equipment make the data exchange not flexible enough. As a result, it is necessary to apply for the power outage of the 220kV voltage level busbar equipment and all line interval equipment in the 220kV substation during the transformation process. The transformation of the entire power outage will greatly reduce the reliability of the power grid architecture. If the power grid is affected by external faults at this time, it is very likely to cause a larger-scale power outage accident, causing more severe impacts. At the same time, the flexibility of the transformation mode of the entire power outage is poor.

[0041] In view of the problem that during the technical transformation project of substation protection devices, the flexibility of data intercommunication between old and new protection devices is poor due to different interfaces, in order to improve the flexibility of data intercommunication and reduce the cost of the transformation project, this embodiment provides a data command conversion transition interface device suitable for different interfaces between traditional protection and new intelligent protection, so as to realize the interconnection and intercommunication between new and old equipment and ensure the normal function of the old bus differential protection device.

[0042] For easier understanding, see Figure 1 , a relay protection command conversion system provided by the present invention is connected between a first device end and a second device end, comprising: a sampling unit, a configuration unit, a parsing unit and a sending unit;

[0043] Among them, either the first device end or the second device end can be a new device or an old device.

[0044] The sampling unit includes multiple input terminals and monitoring modules;

[0045] The open input terminal is connected to the signal sending terminal of the first device end, and the open input terminal has a unique terminal number;

[0046] The monitoring module is used to obtain the level change signal of the input terminal and the terminal number of the input terminal, and send the level change signal and the terminal number of the input terminal to the configuration unit;

[0047] In this embodiment, the open input terminal uses an optocoupler component. There can be multiple open input terminals, such as 13 open input terminals, and the terminals can be numbered 1 to 13, with a total of 13 open input terminals available. Each open input terminal is connected to the first device end and is used to receive different functional signals sent by the first device end.

[0048] The optocoupler component configured for each input terminal is passive, and its state change is achieved by detecting the corresponding circuit voltage through the optocoupler unit. Under normal circumstances, there is no voltage at the input terminal, and it is determined that no signal has occurred, with 0 indicating no input; when there is a change in the external or other external device, the external device will transmit 110V DC voltage, and the corresponding input terminal will receive 110V voltage and determine that a signal has occurred, with 1 indicating input. In this way, when the input terminal changes from 0 to 1, it is determined that a level change signal has been generated.

[0049] The configuration unit is used to match a corresponding configuration file in a preset configuration file database according to the terminal number of the input terminal, the configuration file including the optical fiber interface number and the message format template; and is also used to edit the level change signal according to the message format template to generate initial message information;

[0050] It is also used to associate the input terminal with the optical fiber interface corresponding to the matched optical fiber interface number to form a virtual circuit, and is also used to send the initial message information to the corresponding optical fiber interface through the input terminal;

[0051] Among them, the preset configuration file database contains the mapping relationship between the terminal number of the input terminal and the configuration file. The staff can compile and store the configuration file in advance and specify the corresponding relationship between the input terminal and the required optical fiber port according to actual needs. For example, if the command of the input terminal (1) needs to be associated with the optical fiber port (3), the input terminal (1) and the optical fiber port (3) are associated with a virtual circuit through the configuration file. At the same time, the user can configure it arbitrarily, which is convenient for the user.

[0052] The configuration file also includes a message format template, which specifies the length, field, format, and type code of the message. After obtaining the level change signal, it is determined whether the level change content is from 0 to 1 or from 1 to 0. The message is generated and encapsulated according to the message format template, thereby generating a message information suitable for transmission on the optical fiber interface. This message information corresponds to the change in the level change signal, and can reflect the change status issued by the first device end. Finally, the message information is sent to the corresponding optical fiber interface through the open input terminal.

[0053] The parsing unit is used to identify the device information of the second device end externally connected to the optical fiber interface according to a preset configuration file database, the device information including the IP address; and is also used to encapsulate the device information into the initial message information, obtain the final message information and send it to the sending unit;

[0054] The sending unit is used to send the final message information to the second device end through the optical fiber interface.

[0055] Among them, the preset configuration file database also contains the device information of the second device end corresponding to each optical fiber interface. The device information includes the IP address and can also include various device information. The device information is encapsulated into the initial message information. The device information is filled in the corresponding area of ​​the message information according to the protocol format to form a message information chain, and then the whole is encapsulated to form the final message information and sent to the second device end. The final message information is the final message information to be sent to the second device end to complete the command conversion from one device to another.

[0056] The relay protection command conversion system structure provided in this embodiment may adopt a back-plug module, which is convenient for later maintenance and replacement.

[0057] Among them, the open terminal can be connected to the external traditional protection equipment (protection in the form of cable wiring), and the optical fiber interface can be connected to the protection equipment of the optical fiber type interface (protection using optical fiber communication). The data stream sent by the traditional protection equipment is converted into the message information required by the corresponding optical fiber interface through this system, realizing data conversion between two different types of interfaces.

[0058] Among them, this system can also be equipped with a self-test and alarm module, which can detect in real time whether each module in the system is working normally. If there is any abnormality, an alarm information will be generated and output. At the same time, a pair of passive central signal nodes are provided, which can be connected to other monitoring devices to receive the alarm status of this system.

[0059] In a specific embodiment, the system also includes: a jitter judgment module, which is used to obtain the continuous change time of the level change signal and determine whether the continuous change time is greater than the preset anti-jitter time. If it is determined that the continuous change time is greater than the preset anti-jitter time, the level change signal is determined to be a real signal; if the continuous change time is not greater than the preset anti-jitter time, the level change signal is filtered out.

[0060] It can be understood that in order to prevent the influence of the sudden voltage signal of the system itself on the level change recognition result of the input terminal, after the monitoring module obtains the level change signal of the input terminal, the jitter judgment module is used to judge whether the continuous change time of the level change signal meets the conditions of the real signal. Among them, within a certain anti-jitter time, the duration of the change of the level change signal of the input terminal is monitored. If it is determined that the continuous change time is greater than the preset anti-jitter time, the level change signal is determined to be a real signal, and the signal is continued to be processed. If the continuous change time is not greater than the preset anti-jitter time, the level change signal is filtered out.

[0061] In a specific embodiment, the system further includes: a time synchronization module and a timestamp module;

[0062] The timing module is used to obtain the occurrence time of the level change signal based on the clock system, and is also used to send the occurrence time to the timestamp module;

[0063] Among them, the time synchronization module can lock the time stamp information of the occurrence moment of the level change signal and record the year, month, day, hour, minute, second and millisecond.

[0064] The timestamp module is used to encapsulate the occurrence time into the final message information in the form of a timestamp.

[0065] The following is an example of a relay protection command conversion system provided in conjunction with this embodiment:

[0066] Generally speaking, the information exchanged between two devices may include four types of information flows, and this relay protection command conversion system realizes the conversion of these four types of information flows, which include: (1) When a line fault occurs, the 220kV line protection is activated and a start failure signal is sent to the 220kV busbar protection at the same time; (2) When a busbar fault occurs, the 220kV busbar protection is activated and a tripping command is sent to the 220kV line operation box to trip the 220kV line switch; (3) When a busbar fault occurs, the 220kV busbar protection is activated and a tripping command is sent to the 220kV line protection. After receiving the command, the 220kV line protection sends a remote tripping command to trip the switch on the opposite side of the line; 4) When a busbar fault occurs, the 220kV busbar protection is activated and a tripping command is sent to the 220kV line protection. After receiving the command, the 220kV line protection starts its own locking reclosing function to lock the reclosing.

[0067] The above four types of data flow information, if divided according to the direction of data flow, can be summarized into two categories. One category is that the data is converted and sent from the old bus protection to the new intelligent protection, and the old protection electrical signal is converted into the new intelligent protection optical fiber message. The other type of data conversion is that the data command is sent from the new line protection to the old bus protection, and the optical fiber command information of the new intelligent protection is converted into cable strong electric signal information.

[0068] The relay protection command conversion system provided by this embodiment can convert the failure input signal of the new intelligent protection network message into an input command electrical signal that can be recognized by the traditional busbar protection; it can also convert the traditional cable tripping command input into a network command message that can be recognized by the new intelligent protection, and send it to the line protection intelligent terminal to realize the tripping function; it can also convert the traditional cable tripping command input into a network command message that can be recognized by the new intelligent protection. After receiving the message, the new intelligent protection starts the internal remote tripping circuit function, sends a message to the opposite side of the line through the protection optical fiber channel, trips the switch on the opposite side, and realizes the remote tripping function, thereby realizing the tripping function of protection equipment with different types of interfaces and realizing information flow conversion.

[0069] The traditional cable locking command can also be opened and converted into a network command message (locking reclosing network locking command) that can be recognized by the new intelligent protection, thereby realizing the mutual locking function of protection devices with different types of interfaces and realizing information flow conversion.

[0070] like Figure 2 As shown, it illustrates the connection relationship of the relay protection command conversion system. The relay protection command conversion system is connected between the traditional busbar protection device and the new intelligent protection and new intelligent terminal, and adopts a networking mode to transform the substation system.

[0071] Specifically, for 220kV substations, a one-to-one configuration with the new intelligent line protection (already retrofitted) is adopted. A dual-network structure is used to establish a dual-star network for data transmission and reception conversion. Specifically, if the retrofitted protection device is a single unit, a relay protection command conversion system is configured. If the retrofitted protection device is a dual-set redundant configuration, two relay protection command conversion systems are configured, with the relay protection command conversion system configured one-to-one with the retrofitted protection. This system matches the number of retrofitted bay protection devices. For example, if a 220kV** line is retrofitted and two line protection devices are configured, two relay protection command conversion systems corresponding one-to-one to each line protection device are provided, achieving a dual-set configuration.

[0072] In the specific command conversion process, the traditional busbar protection sends a (locking and reclosing) command to the intelligent line protection. The signal is sent by the traditional busbar protection in the form of a strong cable signal through the traditional cable loop and is input into the relay protection command conversion system. After receiving the signal, the relay protection command conversion system converts it into a message internally and sends the network message command to the network through the new optical fiber network (GOOSE network). The new intelligent line protection networked in the form of optical fiber tripping is connected to the network. After identifying the command on the network, it realizes the locking of its own line protection reclosing function through its own logic.

[0073] It should be noted that the relay protection command conversion system provided in this embodiment obtains the level change signal of the input terminal and the terminal number of the input terminal through a sampling unit, and then identifies the optical fiber interface number and the message format template according to the terminal number of the input terminal through a configuration unit, generates initial message information from the level change signal using the message format template, and then associates the input terminal with the optical fiber interface corresponding to the matched optical fiber interface number through a virtual loop, so that the initial message information is sent to the corresponding optical fiber interface through the input terminal, and identifies the device information of the second device end connected to the outside of the optical fiber interface, encapsulates the device information into the initial message information, and sends the final message information to the second device end through the optical fiber interface, thereby solving the problem of poor flexibility in data intercommunication between the two devices due to different interfaces, and facilitating information flow conversion between devices with different types of interfaces.

[0074] The above is a detailed description of an embodiment of a relay protection command conversion system provided by the present invention. The following is a detailed description of an embodiment of a relay protection command conversion method provided by the present invention.

[0075] For easier understanding, see Figure 3 The present invention also provides a relay protection command conversion method for transferring data between a first device end and a second device end, comprising the following steps:

[0076] S1. Obtaining a level change signal of a binary input terminal and a terminal number of the binary input terminal, wherein the binary input terminal has a unique terminal number;

[0077] S2. Matching a corresponding configuration file in a preset configuration file database according to the terminal number of the input terminal, the configuration file including the optical fiber interface number and the message format template; editing the level change signal according to the message format template to generate initial message information; and performing a virtual circuit association between the input terminal and the optical fiber interface corresponding to the matched optical fiber interface number;

[0078] S3. Identifying device information of a second device externally connected to the optical fiber interface according to a preset configuration file database, the device information including an IP address; and encapsulating the device information into the initial message information to obtain final message information;

[0079] S4. Send the final message information to the second device end through the optical fiber interface.

[0080] In a specific embodiment, the open-in terminal uses an optocoupler component.

[0081] In a specific embodiment, before step S2, the method further includes:

[0082] Obtain the continuous change time of the level change signal and determine whether the continuous change time is greater than the preset anti-shake time. If the continuous change time is greater than the preset anti-shake time, the level change signal is determined to be a real signal and the next step is executed; if the continuous change time is not greater than the preset anti-shake time, the level change signal is filtered out.

[0083] In a specific embodiment, the method further comprises:

[0084] S5. Acquire the occurrence time of the level change signal based on the clock system;

[0085] S6. Encapsulate the occurrence time into the final message information in a time stamp manner.

[0086] The present invention provides a relay protection command conversion method, which obtains the level change signal of the input terminal and the terminal number of the input terminal, and then identifies the optical fiber interface number and the message format template according to the terminal number of the input terminal, generates initial message information from the level change signal using the message format template, and then associates the input terminal with the optical fiber interface corresponding to the matched optical fiber interface number through a virtual loop, so that the initial message information is sent to the corresponding optical fiber interface through the input terminal, and identifies the device information of the second device end connected to the outside of the optical fiber interface, encapsulates the device information into the initial message information, and sends the final message information to the second device end through the optical fiber interface, thereby solving the problem of poor flexibility in data intercommunication between two devices due to different interfaces, and facilitating information flow conversion between devices with different types of interfaces.

[0087] The present invention also provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0088] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the above method when the computer program is executed by a processor.

[0089] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the methods, devices and units described above can refer to the corresponding processes in the aforementioned system embodiments and will not be repeated here.

[0090] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0091] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0092] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0093] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for executing all or part of the steps of the method described in each embodiment of the present invention through a computer device (which can be a personal computer, server, or network device, etc.). The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (full name: Read-Only Memory, English abbreviation: ROM), random access memory (full name: Random Access Memory, English abbreviation: RAM), magnetic disk or optical disk, etc. Various media that can store program codes.

[0094] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A relay protection command conversion system, connected between a first device end and a second device end, characterized in that: include: Sampling unit, configuration unit, parsing unit and sending unit; The sampling unit includes a plurality of input terminals and a monitoring module; The open input terminal is connected to the signal sending end of the first device end, and the open input terminal has a unique terminal number; The monitoring module is used to obtain the level change signal of the open input terminal and the terminal number of the open input terminal, and send the level change signal and the terminal number of the open input terminal to the configuration unit; The configuration unit is used to match a corresponding configuration file in a preset configuration file database according to the terminal number of the input terminal, the configuration file including the optical fiber interface number and the message format template; and is also used to edit the level change signal according to the message format template to generate initial message information; It is also used to associate the input terminal with the optical fiber interface corresponding to the matched optical fiber interface number to form a virtual circuit, and is also used to send the initial message information to the corresponding optical fiber interface through the input terminal; The parsing unit is configured to identify device information of a second device end externally connected to the optical fiber interface according to the preset configuration file database, wherein the device information includes an IP address; and is further configured to encapsulate the device information into the initial message information, obtain final message information, and send it to the sending unit; The sending unit is used to send the final message information to the second device end through the optical fiber interface.

2. The relay protection command conversion system according to claim 1, characterized in that: The open-in terminal adopts an optical coupling component.

3. The relay protection command conversion system according to claim 1, characterized in that: Also includes: The jitter determination module is configured to obtain a continuous change time of the level change signal and determine whether the continuous change time is greater than a preset anti-jitter time. If the continuous change time is greater than the preset anti-jitter time, the level change signal is determined to be a true signal; if the continuous change time is not greater than the preset anti-jitter time, the level change signal is filtered out.

4. The relay protection command conversion system according to claim 1, characterized in that: Also includes: Timing module and timestamp module; The timing module is used to obtain the occurrence time of the level change signal based on the clock system, and is also used to send the occurrence time to the timestamp module; The timestamp module is used to encapsulate the occurrence time into the final message information in a time stamp manner.

5. A relay protection command conversion method for transferring data between a first device end and a second device end, characterized in that: The following steps are involved: Acquire a level change signal of a binary input terminal and a terminal number of the binary input terminal, wherein the binary input terminal has a unique terminal number; Matching a corresponding configuration file in a preset configuration file database according to the terminal number of the input terminal, the configuration file including the optical fiber interface number and the message format template; editing the level change signal according to the message format template to generate initial message information; and performing a virtual circuit association between the input terminal and the optical fiber interface corresponding to the matched optical fiber interface number; Identifying device information of a second device end externally connected to the optical fiber interface according to the preset configuration file database, the device information including an IP address; encapsulating the device information into the initial message information to obtain final message information; The final message information is sent to the second device end through the optical fiber interface.

6. The relay protection command conversion method according to claim 5, characterized in that: The open-in terminal adopts an optical coupling component.

7. The relay protection command conversion method according to claim 5, characterized in that: Before the step of matching a corresponding configuration file in a preset configuration file database according to the terminal number of the input terminal, wherein the configuration file includes the optical fiber interface number and the message format template, the step further includes: Obtaining a continuous change time of the level change signal, and determining whether the continuous change time is greater than a preset anti-shake time; if it is determined that the continuous change time is greater than the preset anti-shake time, determining that the level change signal is a true signal and executing the next step; if the continuous change time is not greater than the preset anti-shake time, filtering the level change signal.

8. The relay protection command conversion method according to claim 5, characterized in that: Also includes: Acquire the occurrence time of the level change signal based on the clock system; The occurrence time is encapsulated into the final message information in a time stamp manner.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 5 to 8 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 5 to 8 are implemented.

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