Transformer gear adjustment control method, device, system, equipment and medium

Abstract

Embodiments of the present invention disclose a transformer gear adjustment control method, apparatus, system, equipment, and medium. The method includes: receiving signals sent by a first flexible DC control system and a second flexible DC control system; determining the type of signals received from the first and second flexible DC control systems; when communication between the first and second flexible DC control systems is abnormal and both the first and second flexible DC control systems send duty signals, determining the duty signal of the system that follows the duty signal of the first and second control systems according to the order of the duty signals sent by the first and second flexible DC control systems; and determining the off-duty signal of the other system that follows the first and second flexible DC control systems; feeding back the off-duty signal to the first flexible DC system so that the first control system does not issue a gear adjustment instruction; and feeding back the duty signal to the second flexible DC control system so that the second control system issues a gear adjustment instruction.

Description

Technical Field

[0001] Embodiments of the present invention relate to flexible direct current transmission technology, and in particular to a transformer gear adjustment method, device, system, equipment and medium. Background Art

[0002] Compared to AC transmission, HVDC Flexible offers greater economic efficiency and applicability for long-distance, high-capacity transmission. Furthermore, using HVDC Flexible to interconnect power grids does not increase short-circuit capacity, helping to prevent the spread of AC system failures. Furthermore, HVDC Flexible offers rapid and controllable power flows, enabling stability and frequency control of connected power grids. Due to its economic efficiency, interconnectivity, and controllability, HVDC Flexible has rapidly expanded within power systems in recent years.

[0003] Transformers are crucial components in flexible DC transmission systems. Changing their gears significantly expands the system's power operating range. For reliability, flexible DC transmission control systems typically utilize active / standby redundancy. If inter-system communication within a flexible DC transmission control system is interrupted, both the active and standby control systems become active, maintaining continued operation. However, if the gear adjustment commands of the two systems are inconsistent, this can lead to confusion in transformer gear adjustment, seriously impacting the safe and stable operation of the flexible DC transmission system. Summary of the Invention

[0004] The present invention provides a transformer gear adjustment control method, device, system, equipment and medium to select a gear adjustment command issued by one flexible DC control system, thereby avoiding the situation of receiving gear adjustment commands from two control systems at the same time.

[0005] In a first aspect, an embodiment of the present invention provides a transformer gear adjustment control method, the method comprising:

[0006] receiving signals sent by the first flexible DC control system and the second flexible DC control system;

[0007] Determining types of signals received from the first flexible DC control system and the second flexible DC control system;

[0008] When communication between the first flexible DC control system and the second flexible DC control system is abnormal and duty signals are received from both the first flexible DC control system and the second flexible DC control system, the duty signal of the control system that follows the first flexible DC control system and the second flexible DC control system and sends the duty signal later is determined according to the order of the duty signals sent by the first flexible DC control system and the second flexible DC control system; and the off-duty signal of the control system that follows the other of the first flexible DC control system and the second flexible DC control system is determined;

[0009] feeding back the off-duty signal to the first flexible DC system so that the first flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal;

[0010] The duty signal is fed back to the second flexible DC control system so that the second flexible DC control system issues a gear adjustment instruction according to the received duty signal.

[0011] Optionally, the method further includes:

[0012] When communication between the first flexible DC control system and the second flexible DC control system is normal, receiving an on-duty signal sent by the first flexible DC control system and an off-duty signal sent by the second flexible DC control system;

[0013] feeding back the duty signal to the first flexible DC control system so that the first flexible DC control system issues a gear adjustment instruction according to the received duty signal;

[0014] The off-duty signal is fed back to the second flexible DC control system so that the second flexible DC control system receives the off-duty signal and does not issue a gear adjustment instruction.

[0015] In a second aspect, an embodiment of the present invention further provides a transformer gear adjustment control device, the device comprising:

[0016] a signal receiving module, configured to receive signals sent by the first flexible DC control system and the second flexible DC control system;

[0017] a determination module, configured to determine types of signals received from the first flexible DC control system and the second flexible DC control system;

[0018] a signal following module for determining, when communication between the first flexible DC control system and the first valve control system is abnormal and duty signals are received from both the first flexible DC control system and the second flexible DC control system, to follow the duty signal of one of the first and second flexible DC control systems according to the order of the duty signals sent by the first and second flexible DC control systems; and to follow the off-duty signal of the other of the first and second flexible DC control systems;

[0019] a first feedback module, configured to feed back the off-duty signal to the first flexible DC system so that the first flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal;

[0020] The second feedback module is configured to feed back the duty signal to the second flexible DC control system so that the second flexible DC control system issues a gear adjustment instruction based on the duty signal received.

[0021] Optionally, the device further includes:

[0022] a second follower module, configured to receive an on-duty signal sent by the first flexible DC control system and an off-duty signal sent by the second flexible DC control system when communication between the first flexible DC control system and the second flexible DC control system is normal;

[0023] a third feedback module, configured to feed back the duty signal to the first flexible DC control system so that the first flexible DC control system issues a gear adjustment instruction according to the received duty signal;

[0024] The fourth feedback module is configured to feed back the off-duty signal to the second flexible DC control system so that the second flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal.

[0025] In a third aspect, an embodiment of the present invention further provides a transformer gear adjustment control system, the system comprising a valve control system implementing the first aspect, a first flexible DC control system, and a second flexible DC control system;

[0026] The first flexible DC control system is connected to the second flexible DC control system via optical fiber communication; the first flexible DC control system and the second flexible DC control system are both connected to the valve control system via optical fiber communication.

[0027] Optionally, the valve control system includes a first valve control system and a second valve control system;

[0028] The first valve control system is connected to the second valve control system via optical fiber communication; the first valve control system is connected to the first flexible DC control system via optical fiber communication; the second valve control system is connected to the second flexible DC control system via optical fiber communication;

[0029] the first valve control system is configured to, when communication between the first flexible DC control system and the second flexible DC control system is abnormal, feed back the off-duty signal to the first flexible DC system so that the first flexible DC control system does not issue a gear adjustment instruction based on the received off-duty signal;

[0030] The second valve control system is configured to feed back the duty signal to the second flexible DC control system when communication between the first flexible DC control system and the second flexible DC control system is abnormal, so that the second flexible DC control system issues a gear adjustment instruction according to the received duty signal.

[0031] Optionally, the first valve control system is further configured to, when communication between the first flexible DC control system and the second flexible DC control system is normal, feed back the duty signal to the first flexible DC control system, so that the first flexible DC control system issues a gear adjustment instruction according to the received duty signal;

[0032] The second valve control system is further configured to, when communication between the first flexible DC control system and the second flexible DC control system is normal, feed back the off-duty signal to the second flexible DC control system so that the second flexible DC control system does not issue a gear adjustment instruction upon receiving the off-duty signal.

[0033] Optionally, it further includes a first IO interface device, a second IO interface device and a transformer gear adjustment device;

[0034] The first flexible DC control system is communicatively connected to the first IO interface device and the second IO interface device; the second flexible DC control system is communicatively connected to the first IO interface device and the second IO interface device; the first IO interface device and the second IO interface device are both communicatively connected to the transformer gear adjustment device;

[0035] The first IO interface device and the second IO interface device are used to forward the gear adjustment instruction to the transformer gear adjustment device.

[0036] In a fourth aspect, an embodiment of the present invention further provides a computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the transformer gear adjustment control method as described in the first aspect when executing the program.

[0037] In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements a transformer gear adjustment control method as described in the first aspect above.

[0038] In an embodiment of the present invention, a method is provided for receiving signals sent by a first flexible DC control system and a second flexible DC control system; determining the types of signals received from the first flexible DC control system and the second flexible DC control system; and when communication between the first flexible DC control system and the first flexible DC control system is abnormal and both the first flexible DC control system and the second flexible DC control system send duty signals, determining the duty signal of the control system that follows the first flexible DC control system and the second flexible DC control system and sends the duty signal later according to the order of the duty signals sent by the first flexible DC control system and the second flexible DC control system; and determining the off-duty signal of the control system that follows the other of the first flexible DC control system and the second flexible DC control system; and feeding back the off-duty signal to the first flexible DC control system so that the first flexible DC control system does not issue a gear adjustment instruction based on the received off-duty signal; and feeding back the duty signal to the second flexible DC control system so that the second flexible DC control system issues a gear adjustment instruction based on the received duty signal. In this way, one of the two flexible DC control systems issues a gear adjustment command, avoiding the situation where both flexible DC control systems issue gear adjustment commands at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a flow chart of a transformer gear adjustment control method provided by an embodiment of the present invention;

[0040] Figure 2 This is a structural block diagram of a transformer gear adjustment control system provided by an embodiment of the present invention;

[0041] Figure 3 This is a structural block diagram of another transformer gear adjustment control system provided by an embodiment of the present invention;

[0042] Figure 4 This is a structural block diagram of a transformer gear adjustment control device provided by an embodiment of the present invention;

[0043] Figure 5 It is a structural diagram of a computer device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0045] Figure 1 FIG. 1 is a flow chart of a transformer gear adjustment control method provided by an embodiment of the present invention, such as Figure 1 As shown, the control method includes the following steps:

[0046] S110: Receive signals sent by the first flexible DC control system and the second flexible DC control system.

[0047] Among them, this control method is applied to the transformer gear adjustment control system, Figure 2 This is a block diagram of a transformer gear adjustment control system according to an embodiment of the present invention. This control system includes a valve control system 10, a first flexible DC control system 20, and a second flexible DC control system 30. The first flexible DC control system 20 and the second flexible DC control system 30 are connected via optical fiber communication. Both the first flexible DC control system 20 and the second flexible DC control system 30 are connected to the valve control system 10 via optical fiber communication. In this solution, the valve control system 10 receives signals sent by the first flexible DC control system 20 and the second flexible DC control system 30.

[0048] S120 : Determine the types of signals received from the first flexible DC control system and the second flexible DC control system.

[0049] When the transformer gear adjustment control system is operating normally, only one of the first and second flexible DC control systems 20 and 30 sends an on-duty signal, while the other sends an off-duty signal. When communication between the first and second flexible DC control systems 20 and 30 is abnormal, both the first and second flexible DC control systems 20 and 30 send on-duty signals. The valve control system 10 can receive different signal types from the first and second flexible DC control systems 20 and 30 under different operating conditions of the transformer gear adjustment control system.

[0050] S130. When communication between the first flexible DC control system and the second flexible DC control system is abnormal and duty signals are received from both the first flexible DC control system and the second flexible DC control system, the duty signal of the control system that follows the first flexible DC control system and the second flexible DC control system and sends the duty signal later is determined according to the order of the duty signals sent by the first flexible DC control system and the second flexible DC control system; and the off-duty signal of the control system that follows the other of the first flexible DC control system and the second flexible DC control system is determined.

[0051] Among them, when the communication between the first flexible DC control system 20 and the second flexible DC control system 30 is abnormal, both the first flexible DC control system 20 and the second flexible DC control system 30 send duty signals. For example, when the valve control system 10 first receives the duty signal of the first flexible DC control system 20 and then receives the duty signal of the second flexible DC control system 30, the valve control system 10 follows the off-duty signal of the first flexible DC control system 20 and follows the duty signal of the second flexible DC control system 30.

[0052] S140 : Feedback an off-duty signal to the first flexible DC system so that the first flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal.

[0053] S150 : Feedback the duty signal to the second flexible DC control system so that the second flexible DC control system issues a gear adjustment instruction according to the received duty signal.

[0054] When the valve control system 10 determines to follow the off-duty signal of the first flexible DC control system 20 and the on-duty signal of the second flexible DC control system 30, it feeds back the off-duty signal to the first flexible DC control system 20 so that the first flexible DC control system 20 does not issue a gear adjustment instruction based on the received off-duty signal. It feeds back the on-duty signal to the second flexible DC control system 30 so that the second flexible DC control system 30 issues a gear adjustment instruction based on the received on-duty signal. This ensures that one of the two flexible DC control systems issues a gear adjustment instruction, avoiding the situation where both flexible DC control systems issue gear adjustment instructions simultaneously. This solves the problem in the prior art where, when communication between the first flexible DC control system 20 and the second flexible DC control system 30 is abnormal, both DC control systems send on-duty signals. When both control systems receive an external transformer gear instruction, both DC control systems issue gear adjustment instructions. This causes confusion in the subsequent adjustment of the transformer gear adjustment device, seriously affecting the safe and stable operation of the flexible DC transmission system.

[0055] Optionally, based on the above embodiment, the method further includes:

[0056] When communication between the first flexible DC control system and the second flexible DC control system is normal, receiving an on-duty signal sent by the first flexible DC control system and an off-duty signal sent by the second flexible DC control system;

[0057] Feedback the duty signal to the first flexible DC control system so that the first flexible DC control system issues a gear adjustment instruction according to the received duty signal;

[0058] The off-duty signal is fed back to the second flexible DC control system so that the second flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal.

[0059] Among them, when the transformer gear adjustment control system operates normally, the communication between the first flexible DC control system 20 and the second flexible DC control system 30 is normal, and only one of the first flexible DC control system 20 and the second flexible DC control system 30 sends an on-duty signal, and the other control system sends an off-duty signal; when the two control systems receive an external transformer gear instruction, the control system that sends the on-duty signal in this scheme simultaneously feeds back the on-duty signal to the first flexible DC control system 20 so that the first flexible DC control system 20 issues a gear adjustment instruction; the control system that sends the off-duty signal feeds back the off-duty signal to the second flexible DC control system 30 so that the second flexible DC control system 30 does not issue a gear adjustment instruction; in this way, one of the two flexible DC control systems sends a gear adjustment command, ensuring the normal operation of the transformer gear adjustment control system.

[0060] A transformer gear adjustment control device provided in an embodiment of the present invention can execute a transformer gear adjustment control method provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method. Figure 3 This is a structural block diagram of a transformer gear adjustment control device provided by an embodiment of the present invention. Figure 3 As shown, the device includes:

[0061] Signal receiving module 01, used to receive signals sent by the first flexible DC control system and the second flexible DC control system;

[0062] A judgment module 02 is configured to judge the types of signals received from the first flexible DC control system and the second flexible DC control system;

[0063] Signal following module 03 is configured to, when communication between the first FDC control system and the first valve control system is abnormal and both the first FDC control system and the second FDC control system send duty signals, determine, based on the order of the duty signals sent by the first FDC control system and the second FDC control system, to follow the duty signal of one of the first and second FDC control systems; and determine to follow the off-duty signal of the other of the first and second FDC control systems;

[0064] The first feedback module 04 is configured to feed back an off-duty signal to the first flexible DC system so that the first flexible DC control system does not issue a gear adjustment instruction based on the received off-duty signal;

[0065] The second feedback module 05 is configured to feed back the duty signal to the second flexible DC control system so that the second flexible DC control system issues a gear adjustment instruction according to the received duty signal.

[0066] Optionally, the device further includes:

[0067] The second follower module is configured to receive an on-duty signal sent by the first flexible DC control system and an off-duty signal sent by the second flexible DC control system when communication between the first flexible DC control system and the second flexible DC control system is normal;

[0068] a third feedback module, configured to feed back a duty signal to the first flexible DC control system so that the first flexible DC control system issues a gear adjustment instruction according to the received duty signal;

[0069] The fourth feedback module is configured to feed back an off-duty signal to the second flexible DC control system so that the second flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal.

[0070] The embodiment of the present invention also provides a transformer gear adjustment control system, continue to refer to Figure 2 The control system includes a valve control system 10, a first flexible DC control system 20 and a second flexible DC control system 30; the first flexible DC control system 20 and the second flexible DC control system 30 are connected via optical fiber communication; the first flexible DC control system 20 and the second flexible DC control system 30 are both connected to the valve control system 10 via optical fiber communication.

[0071] The valve control system 10 is configured to receive signals sent by a first flexible DC control system and a second flexible DC control system; determine the types of signals received from the first flexible DC control system and the second flexible DC control system; and when communication between the first flexible DC control system and the second flexible DC control system is abnormal and duty signals are received from both the first flexible DC control system and the second flexible DC control system, determine, based on the order of the duty signals sent by the first flexible DC control system and the second flexible DC control system, an on-duty signal for the control system that follows the first flexible DC control system and the second flexible DC control system and sends the duty signal later; and determine an off-duty signal for the control system that follows the other of the first flexible DC control system and the second flexible DC control system; feed back the off-duty signal to the first flexible DC control system so that the first flexible DC control system does not issue a gear adjustment instruction based on the received off-duty signal; and feed back the duty signal to the second flexible DC control system so that the second flexible DC control system issues a gear adjustment instruction based on the received duty signal.

[0072] Optional, Figure 4 This is a structural block diagram of another transformer gear adjustment control system provided by an embodiment of the present invention. Figure 4As shown, the valve control system 10 includes a first valve control system 11 and a second valve control system 12; the first valve control system 11 and the second valve control system 12 are connected through optical fiber communication; the first valve control system 11 and the first flexible DC control system 20 are connected through optical fiber communication; the second valve control system 12 and the second flexible DC control system 30 are connected through optical fiber communication; the first valve control system 11 or the second valve control system 12 is used to receive signals sent by the first flexible DC control system 20 and the second flexible DC control system 30; judge the type of signals received from the first flexible DC control system 20 and the second flexible DC control system 30; when the communication between the first flexible DC control system 20 and the first flexible DC control system 30 is abnormal, and the first flexible DC control system 20 and the second flexible DC control system 30 both send duty signals, according to the first flexible DC control system 20 and the second flexible DC control system 3 0 determines the on-duty signal of the control system that sends the on-duty signal later than the first flexible DC control system 20 and the second flexible DC control system 30; and determines the off-duty signal of the other control system that follows the first flexible DC control system 20 and the second flexible DC control system 30; the first valve control system 11 is used to feedback the off-duty signal to the first flexible DC system 20 when communication between the first flexible DC control system 20 and the first flexible DC control system 30 is abnormal, so that the first flexible DC control system 20 does not issue the gear adjustment instruction according to the received off-duty signal; the second valve control system 12 is used to feedback the on-duty signal to the second flexible DC control system 30 when communication between the first flexible DC control system 20 and the first flexible DC control system 30 is abnormal, so that the second flexible DC control system 30 issues the gear adjustment instruction according to the received on-duty signal.

[0073] Optionally, the first valve control system 11 is further configured to, when communication between the first flexible DC control system 20 and the second flexible DC control system 30 is normal, feed back a duty signal to the first flexible DC control system 20 so that the first flexible DC control system 20 issues a gear adjustment instruction according to the received duty signal;

[0074] The second valve control system 12 is further configured to, when communication between the first flexible DC control system 20 and the second flexible DC control system 30 is normal, feed back an off-duty signal to the second flexible DC control system 30 so that the second flexible DC control system 30 receives the off-duty signal and does not issue a gear adjustment instruction.

[0075] Optional, see Figure 4The device also includes a first IO interface device 40, a second IO interface device 50, and a transformer gear adjustment device 60; the first flexible DC control system 20 is communicatively connected to the first IO interface device 40 and the second IO interface device 50; the second flexible DC control system 30 is communicatively connected to the first IO interface device 40 and the second IO interface device 50; the first IO interface device 40 and the second IO interface device 50 are both communicatively connected to the transformer gear adjustment device 60; the first IO interface device 40 and the second IO interface device 50 are used to forward gear adjustment instructions to the transformer gear adjustment device 60.

[0076] Figure 5 is a schematic diagram of the structure of a computer device provided by an embodiment of the present invention, such as Figure 5 As shown, the device includes a processor 70, a memory 71, an input device 72 and an output device 73; the number of processors 70 in the device can be one or more. Figure 5 In the embodiment, a processor 70 is used as an example; the processor 70, the memory 71, the input device 72 and the output device 73 in the device can be connected by a bus or other means. Figure 5 The bus connection is taken as an example.

[0077] Memory 71, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as program instructions corresponding to the DC power supply ripple control method in the embodiments of the present invention. Processor 70 executes the software programs, instructions, and modules stored in memory 71 to perform various functional applications and data processing of the device, thereby implementing the aforementioned transformer gear adjustment control method.

[0078] The memory 71 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal, etc. Furthermore, the memory 71 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state memory device. In some instances, the memory 71 may further include memory remotely located relative to the processor 70, and these remote memories may be connected to the device / terminal / server via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0079] The input device 72 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the device. The output device 73 may include a display device such as a display screen.

[0080] An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to execute a transformer gear adjustment control method.

[0081] The method includes:

[0082] receiving signals sent by the first flexible DC control system and the second flexible DC control system;

[0083] Determining types of signals received from the first flexible DC control system and the second flexible DC control system;

[0084] When communication between the first flexible DC control system and the second flexible DC control system is abnormal and duty signals are received from both the first flexible DC control system and the second flexible DC control system, the duty signal of the control system that follows the first flexible DC control system and the second flexible DC control system and sends the duty signal later is determined according to the order of the duty signals sent by the first flexible DC control system and the second flexible DC control system; and the off-duty signal of the control system that follows the other of the first flexible DC control system and the second flexible DC control system is determined;

[0085] feeding back the off-duty signal to the first flexible DC system so that the first flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal;

[0086] The duty signal is fed back to the second flexible DC control system so that the second flexible DC control system issues a gear adjustment instruction according to the received duty signal.

[0087] Of course, the storage medium containing computer-executable instructions provided in an embodiment of the present invention is not limited to the method operations described above, and can also execute related operations in the transformer gear adjustment control method provided in any embodiment of the present invention.

[0088] Through the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented with the help of software and necessary general-purpose hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0089] It is worth noting that in the embodiment of the above-mentioned search device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0090] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A transformer gear adjustment control method, characterized in that: include: receiving signals sent by the first flexible DC control system and the second flexible DC control system; Determining types of signals received from the first flexible DC control system and the second flexible DC control system; When communication between the first flexible DC control system and the second flexible DC control system is abnormal and duty signals are received from both the first flexible DC control system and the second flexible DC control system, the duty signal of the control system that follows the first flexible DC control system and the second flexible DC control system and sends the duty signal later is determined according to the order of the duty signals sent by the first flexible DC control system and the second flexible DC control system; and the off-duty signal of the control system that follows the other of the first flexible DC control system and the second flexible DC control system is determined; feeding back the off-duty signal to the first flexible DC control system or the second flexible DC control system so that the first flexible DC control system or the second flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal; The duty signal is fed back to the corresponding second flexible DC control system or the first flexible DC control system so that the second flexible DC control system or the first flexible DC control system issues a gear adjustment instruction according to the received duty signal.

2. The transformer gear adjustment control method according to claim 1, characterized in that: Also includes: When communication between the first flexible DC control system and the second flexible DC control system is normal, receiving an on-duty signal sent by the first flexible DC control system and an off-duty signal sent by the second flexible DC control system; feeding back the duty signal to the first flexible DC control system so that the first flexible DC control system issues a gear adjustment instruction according to the received duty signal; The off-duty signal is fed back to the second flexible DC control system so that the second flexible DC control system does not issue a gear adjustment instruction upon receiving the off-duty signal.

3. A transformer gear adjustment control device, characterized in that: include: a signal receiving module, configured to receive signals sent by the first flexible DC control system and the second flexible DC control system; a determination module, configured to determine types of signals received from the first flexible DC control system and the second flexible DC control system; a signal following module for determining, when communication between the first flexible DC control system and the second flexible DC control system is abnormal and duty signals are received from both the first flexible DC control system and the second flexible DC control system, to follow the duty signal of one of the first and second flexible DC control systems according to the order of the duty signals sent by the first and second flexible DC control systems; and to follow the off-duty signal of the other of the first and second flexible DC control systems; a first feedback module, configured to feed back the off-duty signal to the first flexible DC control system or the second flexible DC control system so that the first flexible DC control system or the second flexible DC control system does not issue a gear adjustment instruction based on the received off-duty signal; The second feedback module is configured to feed back the duty signal to the second flexible DC control system or the first flexible DC control system so that the second flexible DC control system or the first flexible DC control system issues a gear adjustment instruction according to the received duty signal.

4. The transformer gear adjustment control device according to claim 3, characterized in that: Also includes: a second follower module, configured to receive an on-duty signal sent by the first flexible DC control system and an off-duty signal sent by the second flexible DC control system when communication between the first flexible DC control system and the second flexible DC control system is normal; a third feedback module, configured to feed back the duty signal to the first flexible DC control system so that the first flexible DC control system issues a gear adjustment instruction according to the received duty signal; The fourth feedback module is configured to feed back the off-duty signal to the second flexible DC control system so that the second flexible DC control system does not issue a gear adjustment instruction according to the received off-duty signal.

5. A transformer gear adjustment control system, characterized in that: A transformer gear adjustment control method for executing any one of claims 1-2 above; The first flexible DC control system is connected to the second flexible DC control system via optical fiber communication; the first flexible DC control system and the second flexible DC control system are both connected to the valve control system via optical fiber communication.

6. The transformer gear adjustment control system according to claim 5, characterized in that: The valve control system includes a first valve control system and a second valve control system; The first valve control system is connected to the second valve control system via optical fiber communication; the first valve control system is connected to the first flexible DC control system via optical fiber communication; the second valve control system is connected to the second flexible DC control system via optical fiber communication; the first valve control system is configured to, when communication between the first flexible DC control system and the second flexible DC control system is abnormal, feed back the off-duty signal to the first flexible DC control system so that the first flexible DC control system does not issue a gear adjustment instruction based on the received off-duty signal; The second valve control system is configured to feed back the duty signal to the second flexible DC control system when communication between the first flexible DC control system and the second flexible DC control system is abnormal, so that the second flexible DC control system issues a gear adjustment instruction according to the received duty signal.

7. The transformer gear adjustment control system according to claim 6, characterized in that: The first valve control system is further configured to, when communication between the first flexible DC control system and the second flexible DC control system is normal, feed back the duty signal to the first flexible DC control system so that the first flexible DC control system issues a gear adjustment instruction according to the received duty signal; The second valve control system is further configured to, when communication between the first flexible DC control system and the second flexible DC control system is normal, feed back the off-duty signal to the second flexible DC control system so that the second flexible DC control system does not issue a gear adjustment instruction upon receiving the off-duty signal.

8. The transformer gear adjustment control system according to claim 6, characterized in that: It also includes a first IO interface device, a second IO interface device and a transformer gear adjustment device; The first flexible DC control system is communicatively connected to the first IO interface device and the second IO interface device; the second flexible DC control system is communicatively connected to the first IO interface device and the second IO interface device; the first IO interface device and the second IO interface device are both communicatively connected to the transformer gear adjustment device; The first IO interface device and the second IO interface device are used to forward the gear adjustment instruction to the transformer gear adjustment device.

9. 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 program, the transformer gear adjustment control method as described in any one of claims 1-2 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, a transformer gear adjustment control method according to any one of claims 1 to 2 is implemented.

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