Valve control system protection device, maintenance method, valve control protection system and storage medium

Abstract

The invention relates to a valve control system protection device, a maintenance method, a valve control protection system and a storage medium. The valve control system protection device comprises a two-out-of-three device and a valve protection device connected with the two-out-of-three device, and the two-out-of-three device and the valve protection device are each provided with a maintenance pressing plate; wherein the two-out-of-three device is used for reporting a first message when a fault signal is detected; according to the device, the maintenance pressing plates are arranged on the two-out-of-three device and the valve protection device, so that fault signals can be detected when the maintenance pressing plates are put into use, and the fault device can be processed immediately when the fault signals are detected; and other two-out-of-three devices or valve protection devices which do not have faults in the valve control system protection devices are not limited to various maintenance scenes and still keep normal operation, so that an on-line maintenance method for local control when the faults occur is realized; the operation stability of the valve control protection system where the valve control system protection device is located is improved to a certain extent.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a valve control system protection device, a maintenance method, a valve control protection system and a storage medium. Background Art

[0002] The new high-voltage direct-mounted energy storage technology integrates the VSC (voltage source converter) valve with the DC energy storage valve. It has the advantages of high modularity, good economic benefits, and high operational reliability. It is widely used in various power technology fields.

[0003] In the traditional technology, in order to improve the reliable operation of the new high-pressure direct-mounted energy storage valve control system, redundant configuration of protection equipment is carried out for the new high-pressure direct-mounted energy storage valve control system. Specifically, a redundant three-out-of-two device and a valve protection device are set in the new high-pressure direct-mounted energy storage valve control system to protect the valve device or equipment and ensure that the valve device or equipment can operate normally.

[0004] However, the above-mentioned novel high-pressure direct-mounted energy storage valve control system still has the problem of low reliability. Summary of the invention

[0005] Based on this, it is necessary to provide a valve control system protection device, maintenance method, valve control protection system and storage medium that can improve the operating stability of the valve control protection system to a certain extent in response to the above technical problems.

[0006] In a first aspect, the present application provides a valve control system protection device. The valve control system protection device comprises a three-out-of-two device and a valve protection device connected to the three-out-of-two device, wherein both the three-out-of-two device and the valve protection device are provided with a maintenance pressure plate;

[0007] The three-out-of-two device is used to report a first message when a fault signal is detected; the first message is used to instruct the processing of the fault device corresponding to the fault signal; the fault signal is triggered by the maintenance pressure plate, and the fault device is the three-out-of-two device or the valve protection device.

[0008] The valve control system protection device described in the embodiment of the present application, by arranging a maintenance pressure plate on the three-out-of-two device and the valve protection device, can detect a fault signal when the maintenance pressure plate is put into operation, so that the faulty device can be processed immediately when the fault signal is detected, and other three-out-of-two devices or valve protection devices in the valve control system protection device that have not failed can maintain normal operation without being limited to various maintenance scenarios, thereby realizing an online maintenance method for on-site control when a fault occurs, and to a certain extent improving the stability of the operation of the valve control protection system where the valve control system protection device is located.

[0009] In one of the embodiments, the inspection pressure plate includes a first inspection pressure plate connected to the valve protection device;

[0010] The valve protection device is used to send the fault signal to the three-out-of-two device and switch its own working state to the maintenance state when it detects that the first maintenance pressure plate is put into use; the fault signal includes a maintenance mark indicating the maintenance state.

[0011] The valve control system protection device described in the embodiment of the present application is implemented by setting a first maintenance pressure plate on the valve protection device, so that when the first maintenance pressure plate is put into operation, the three-out-of-two device can detect the fault signal of the faulty valve protection device, so that the faulty valve protection device can be immediately processed when the fault signal is detected, and other three-out-of-two devices or valve protection devices in the valve control system protection device that have not failed are not limited to various maintenance scenarios and can maintain normal operation, thereby realizing an online maintenance method for on-site control when a fault occurs, and to a certain extent improving the stability of the operation of the valve control protection system where the valve control system protection device is located.

[0012] In one of the embodiments, the three-out-of-two device is used to generate the first message when it is determined that the working state indicated by the maintenance identifier is inconsistent with its own working state; the first message is used to instruct fault handling of the valve protection device.

[0013] The valve control system protection device described in the embodiment of the present application can detect the faulty valve protection device through the maintenance mark of the three-out-of-two device, so as to report the alarm of maintenance inconsistency, thereby instructing the peripheral valve control equipment or other equipment to handle the faulty valve protection device, realize automatic detection and processing of faults, and improve maintenance efficiency.

[0014] In one of the embodiments, the valve protection device is further used to send a second message to the three-out-of-two device when detecting that the fault processing of the valve protection device is completed; the second message is used to instruct to verify the valve protection device for which the fault processing is completed;

[0015] The three-out-of-two device is also used to verify the valve protection device after the fault processing is completed according to the second message.

[0016] The valve control system protection device described in the embodiment of the present application can detect the faulty valve protection device through the maintenance mark of the three-out-of-two device, so as to report the alarm of maintenance inconsistency, thereby instructing the peripheral valve control equipment or other equipment to handle the faulty valve protection device, realize automatic detection and processing of faults, and improve maintenance efficiency.

[0017] In one of the embodiments, the valve protection device is further used to send a second message to the three-out-of-two device when detecting that the fault processing of the valve protection device is completed; the second message is used to instruct to verify the valve protection device for which the fault processing is completed;

[0018] The three-out-of-two device is also used to verify the valve protection device after the fault processing is completed according to the second message.

[0019] The embodiment of the present application realizes the verification of the fault handling effect of the valve protection device after the fault handling is completed, which to a certain extent reduces the phenomenon of unstable system operation caused by poor fault handling effect.

[0020] In one embodiment, the maintenance pressure plate further comprises a second maintenance pressure plate connected to the three-out-of-two device.

[0021] The three-out-of-two device is used to parse the second message to obtain a parsing result when it is detected that the second maintenance pressure plate is put into operation and it is determined that the second message carries a maintenance identifier; if the parsing result indicates that the valve protection device is operating normally, it is determined that the valve protection device has passed the verification; if the parsing result indicates that the valve protection device is operating abnormally, it is determined that the valve protection device has not passed the verification.

[0022] The embodiment of the present application verifies the valve protection device that has been repaired through a three-out-of-two device, and automatic verification can be achieved by parsing the second message reported by the valve protection device. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0023] In one embodiment, the valve protection device is further used to switch its own maintenance state to a non-maintenance state upon receiving the first verification pass message, and send a third message to the three-out-of-two device; the third message is used to instruct the three-out-of-two device to switch its own working state;

[0024] The three-out-of-two device is also used to switch its own maintenance state to a non-maintenance state according to the third message.

[0025] After the faulty valve protection device in the device described in this embodiment passes the verification, the corresponding restored valve protection device and the three-out-of-two device used for verification are switched from the maintenance state to the non-maintenance state successively or simultaneously, thereby achieving a seamless transition of the entire valve control and protection system from the online maintenance state to the normal working state, and improving the stability of the operation of the entire valve control and protection system to a certain extent.

[0026] In one of the embodiments, the inspection pressure plate further comprises a second inspection pressure plate connected to the three-out-of-two device;

[0027] The three-out-of-two device is used to report the first message when a fault signal triggered by the second maintenance pressure plate is detected, and the first message is used to instruct fault handling of the three-out-of-two device.

[0028] The valve control system protection device described in the embodiment of the present application is implemented by arranging a second maintenance pressure plate on the three-out-of-two device, so that when the second maintenance pressure plate is put into operation, the peripheral valve control equipment or other equipment can detect the fault signal of the failed three-out-of-two device, so that the failed three-out-of-two device can be immediately processed when the fault signal is detected, and other three-out-of-two devices or valve protection devices in the valve control system protection device that have not failed are not limited to various maintenance scenarios and can maintain normal operation, thereby realizing an online maintenance method of on-site control when a fault occurs, and to a certain extent improving the stability of the operation of the entire valve control system protection device.

[0029] In one of the embodiments, the three-out-of-two device is further used to report a fourth message when detecting that its own fault processing is completed; the fourth message is used to instruct verification of the three-out-of-two device that has completed fault processing.

[0030] The embodiment of the present application realizes the verification of the fault handling effect by the three-out-of-two device after the fault handling is completed, which to a certain extent reduces the phenomenon of unstable system operation caused by poor fault handling effect.

[0031] In one of the embodiments, the three-out-of-two device is further configured to switch its own maintenance state to a non-maintenance state upon receiving a second verification pass message.

[0032] In one of the embodiments, the valve control system protection device includes two of the three-out-of-two devices and three of the valve protection devices, each of the three-out-of-two devices is provided with an inspection pressure plate, and each of the valve protection devices is provided with an inspection pressure plate.

[0033] In a second aspect, the present application further provides a maintenance method, which is applied to a valve control system protection device, wherein the valve control system protection device includes a three-out-of-two device and a valve protection device, and both the three-out-of-two device and the valve protection device are provided with a maintenance pressure plate; the maintenance method includes:

[0034] When the three-out-of-two device detects a fault signal, it reports a first message; the first message is used to instruct the fault device corresponding to the fault signal to be processed; the fault signal is triggered by a maintenance pressure plate connected to the three-out-of-two device, or by a maintenance pressure plate connected to the valve protection device, and the fault device is the three-out-of-two device or the valve protection device.

[0035] In one embodiment, the maintenance pressure plate includes a first maintenance pressure plate connected to the valve protection device, and the method further includes:

[0036] When the valve protection device detects that the first maintenance pressure plate is put into operation, the valve protection device sends the fault signal to the three-out-of-two device and switches its own working state to the maintenance state; the fault signal includes a maintenance mark indicating the maintenance state.

[0037] In one embodiment, the method further comprises:

[0038] The two-out-of-three device generates the first message when determining that the working state indicated by the maintenance mark is inconsistent with its own working state; the first message is used to instruct the valve protection device to perform fault processing.

[0039] In one embodiment, the method further comprises:

[0040] When the valve protection device detects that its own fault processing is completed, it sends a second message to the three-out-of-two device; the second message is used to instruct the verification of the valve protection device whose fault processing has been completed; correspondingly, the three-out-of-two device verifies the valve protection device whose fault processing has been completed according to the second message.

[0041] In one embodiment, when the maintenance pressure plate further includes a second maintenance pressure plate connected to the three-out-of-two device, the method further includes:

[0042] When the two-out-of-three device detects that the second maintenance pressure plate is put into operation and determines that the second message carries a maintenance identifier, it parses the second message to obtain a parsing result; if the parsing result indicates that the valve protection device is operating normally, it is determined that the valve protection device has passed the verification; if the parsing result indicates that the valve protection device is operating abnormally, it is determined that the valve protection device has failed the verification.

[0043] In one embodiment, the method further comprises:

[0044] The valve protection device, when receiving the first verification pass message, switches its own maintenance state to a non-maintenance state and sends a third message to the three-out-of-two device; the third message is used to instruct the three-out-of-two device to switch its own working state; the three-out-of-two device also switches its own maintenance state to a non-maintenance state according to the third message.

[0045] In one embodiment, the method further comprises:

[0046] The maintenance platen includes a second maintenance platen connected to the three-out-of-two device, and the method further includes:

[0047] When the three-out-of-two device detects the fault signal triggered by the second maintenance pressure plate, it reports the first message, and the first message is used to instruct to perform fault processing on the three-out-of-two device.

[0048] In one embodiment, the method further comprises:

[0049] When the two-out-of-three device detects that its own fault processing is completed, it reports a fourth message; the fourth message is used to instruct verification of the two-out-of-three device that has completed the fault processing.

[0050] In one embodiment, the method further comprises:

[0051] When receiving the second verification pass message, the three-out-of-two device switches its own maintenance state to a non-maintenance state.

[0052] In a third aspect, the present application further provides a valve-controlled protection system, which includes a valve-controlled device and a valve-controlled system protection device as described in the first aspect; the three-out-of-two device in the valve-controlled system protection device is connected to the valve-controlled device.

[0053] In a fourth aspect, the present application further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method described in the second solution is implemented.

[0054] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0056] Figure 1 A schematic diagram of the structure of a valve control system protection device in one embodiment;

[0057] Figure 2 A flowchart of a valve control system protection device in one embodiment;

[0058] Figure 3 It is a structural schematic diagram of a valve control system protection device in another embodiment;

[0059] Figure 4 is a working flow chart of a valve control system protection device in another embodiment;

[0060] Figure 5 Schematic diagram of the structure of a valve control system protection device in another embodiment. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0063] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0064] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0065] At present, the new high-voltage direct-mounted energy storage technology integrates the VSC (voltage source converter) converter valve with the DC energy storage valve, which has the advantages of high modularity, good economic benefits, and high operational reliability. Based on the current flexible direct-mounted ultra-high voltage technical specifications, the energy storage valve system architecture is divided into three layers: operator control layer, control protection layer, and field layer. For the energy storage valve control and protection system architecture, it can be further divided into five levels: operation monitoring layer, control and protection equipment layer, submodule control layer, electric cabinet control layer, and electric box control layer. The new high-voltage direct-mounted energy storage valve control system is in the control and protection equipment layer of the system architecture. According to the requirements of the "Zhangbei ±35kV DC Energy Storage Project Flexible Direct-mounted Energy Storage Device Technical Specifications", "the new high-voltage direct-mounted energy storage valve control system should be fully redundant. For other boards except the trigger board and the optical receiving board, the fault handling should be performed without stopping the IGBT valve", that is, the new high-voltage direct-mounted energy storage valve control system supports online maintenance fault handling functions when it is in normal online operation. However, when a valve protection device or a three-out-of-two device in a new high-pressure direct-hung energy storage valve control system fails or is abnormal, it is necessary to perform online maintenance on the valve protection device and the three-out-of-two device to support the normal operation of the system. Therefore, how to provide a reliable online maintenance valve protection device to ensure the reliable and safe operation of the new high-pressure direct-hung energy storage valve control system has become a technical problem that needs to be solved urgently. In response to this problem, this proposal provides a valve protection device and a corresponding maintenance method used in a new high-pressure direct-hung energy storage valve control system. The following embodiments will specifically illustrate the valve protection device and the corresponding maintenance method.

[0066] In some embodiments of the present application, Figure 1 As shown, a valve control system protection device is provided, which includes a three-out-of-two device and a valve protection device connected to the three-out-of-two device, and both the three-out-of-two device and the valve protection device are provided with a maintenance pressure plate; the three-out-of-two device is used to report a first message when a fault signal is detected; the first message is used to indicate that a fault device corresponding to the fault signal is to be processed; the fault signal is triggered by the maintenance pressure plate, and the fault device is the three-out-of-two device or the valve protection device.

[0067] The above-mentioned valve control system protection device may include at least two three-out-of-two devices, corresponding to at least three valve protection devices, and each valve protection device is respectively connected to each three-out-of-two device, and each three-out-of-two device is respectively connected to each valve protection device, that is, each valve protection device is cross-redundantly connected to each three-out-of-two device for data information exchange.

[0068] The valve control system protection device can be applied to a new type of high-pressure direct-hung energy storage valve control system (hereinafter referred to as a valve control protection system) to protect the valve control equipment in the new type of high-pressure direct-hung energy storage valve control system. In this scenario, each valve protection device can be connected to a measuring device in the new type of high-pressure direct-hung energy storage valve control system to receive the measurement data of the measuring device, and each three-out-of-two device can be connected to the valve control device in the new type of high-pressure direct-hung energy storage valve control system to receive protection data, messages, information, requests, etc. related to the valve control device or itself reported by each valve protection device.

[0069] The above-mentioned maintenance pressure plate can be a maintenance hard pressure plate. During actual installation, the maintenance pressure plate can be installed in the panel area below the connected device. For example, the maintenance pressure plate corresponding to each three-out-of-two device is installed in the panel area below the connected three-out-of-two device; the maintenance pressure plate corresponding to each valve protection device is installed in the panel area below the connected valve protection device.

[0070] The above-mentioned fault signal is a fault signal triggered when the maintenance pressure plate corresponding to the fault device in the valve control system protection device is put into operation, and the fault device can be any three-out-of-two device in the valve control system protection device, and the corresponding fault signal is triggered when the maintenance pressure plate of the three-out-of-two device is put into operation; the fault device can also be any valve protection device in the valve control system protection device, and the corresponding fault signal is triggered when the maintenance pressure plate of the valve protection device is put into operation.

[0071] In an embodiment of the present application, in one scenario, when any valve protection device in the valve control system protection device fails or malfunctions, the maintenance pressure plate provided on the valve protection device can be put into operation. After the valve protection device detects that the maintenance pressure plate is put into operation, it can trigger the generation of a fault signal and upload the fault signal to all three-out-of-two devices connected to the valve protection device. Each three-out-of-two device can receive the fault signal uploaded by the above-mentioned valve protection device, so as to determine the valve protection device with fault in the valve control system protection device. After that, the three-out-of-two device can send a first message to the valve control equipment or other monitoring equipment (such as monitoring equipment, recording equipment, maintenance equipment, verification equipment, etc.) connected to the periphery to instruct the valve control equipment or other monitoring equipment to process the faulty valve protection device according to the first message; in another scenario, when any three-out-of-two device in the valve control system protection device fails or is abnormal, the maintenance pressure plate provided on the three-out-of-two device can be put into operation. After the three-out-of-two device detects that the maintenance pressure plate is put into operation, it can trigger the generation of a fault signal. After that, the three-out-of-two device can report a first message to the valve control equipment or other monitoring equipment connected to the periphery to instruct the valve control equipment or other monitoring equipment to process the faulty three-out-of-two device according to the first message. It should be noted that processing a faulty device includes performing operations such as, but not limited to, program upgrades, report log retrieval, variable viewing, problem tracing and location determination on the faulty device through the host computer software, so as to locate the fault, find the fault, analyze the cause of the fault, and solve the fault; optionally, processing a faulty device may also include replacing the faulty device or replacing a board in the faulty device.

[0072] The valve control system protection device described in the embodiment of the present application, by arranging a maintenance pressure plate on the three-out-of-two device and the valve protection device, can detect a fault signal when the maintenance pressure plate is put into operation, so that the faulty device can be processed immediately when the fault signal is detected, and other three-out-of-two devices or valve protection devices in the valve control system protection device that have not failed can maintain normal operation without being limited to various maintenance scenarios, thereby realizing an online maintenance method for on-site control when a fault occurs, and to a certain extent improving the stability of the operation of the valve control protection system where the valve control system protection device is located.

[0073] In one embodiment, the above Figure 1 In the valve control system protection device, the maintenance pressure plate connected to each valve protection device is set as the first maintenance pressure plate. The above-mentioned valve protection device is used to send a fault signal to the three-out-of-two device when it detects that the first maintenance pressure plate is put into use, and switch its own working state to the maintenance state, wherein the fault signal includes a maintenance mark indicating the maintenance state.

[0074] The working status may include an overhaul status and a non-overhaul status.

[0075] The embodiments of the present application relate to a scenario in which the valve protection device is a fault device. In this scenario, after detecting that the first maintenance pressure plate connected to the valve protection device is put into operation, the valve protection device can trigger the generation of a fault signal, and at the same time switch its own working state from a non-maintenance state to a maintenance state, and upload the fault signal to all three-out-of-two devices connected to the valve protection device. Each three-out-of-two device can receive the fault signal uploaded by the above-mentioned valve protection device, thereby determining the valve protection device in the valve control system protection device that has a fault. After that, the three-out-of-two device can send a first message to the externally connected valve control device or other device (for example, a monitoring device, a recording device, a detection device, a verification device, etc.) to instruct the valve control device or other monitoring device (for example, a monitoring device, a recording device, a detection device, a verification device, etc.) to process the faulty valve protection device according to the first message. It should be noted that when the faulty valve protection device switches its working state from a non-maintenance state to a maintenance state, a maintenance identifier can be set on the fault signal, and the fault signal carrying the maintenance identifier can be sent to the three-out-of-two device, so that when the three-out-of-two device receives the fault signal, it can determine the faulty valve protection device in the valve control system protection device according to the maintenance identifier carried by the fault signal.

[0076] The valve control system protection device described in the embodiment of the present application is implemented by setting a first maintenance pressure plate on the valve protection device, so that when the first maintenance pressure plate is put into operation, the three-out-of-two device can detect the fault signal of the faulty valve protection device, so that the faulty valve protection device can be immediately processed when the fault signal is detected, and other three-out-of-two devices or valve protection devices in the valve control system protection device that have not failed are not limited to various maintenance scenarios and can maintain normal operation, thereby realizing an online maintenance method for on-site control when a fault occurs, and to a certain extent improving the stability of the operation of the valve control protection system where the valve control system protection device is located.

[0077] In one embodiment, in the scenario where the valve protection device is a faulty device, when the three-out-of-two device receives a fault signal carrying a maintenance mark sent by the valve protection device, it indicates that the valve protection device is faulty or abnormal. At this time, the three-out-of-two device is used to generate a first message when it is determined that the working state indicated by the maintenance mark is inconsistent with its own working state. The first message is used to instruct the valve protection device to perform fault processing.

[0078] In an embodiment of the present application, when the three-out-of-two device receives a fault signal, it determines whether the fault signal carries a maintenance identifier. If the fault signal carries a maintenance identifier, it means that the valve protection device that triggered the fault signal has a fault and needs to be repaired, that is, it is in a maintenance state. In this case, the three-out-of-two device believes that the maintenance is inconsistent and an alarm needs to be sent, so it generates a first message for reporting, so that the valve control device or other device (such as a monitoring device or a recording device) that receives the first message notifies the maintenance personnel to perform fault processing on the faulty valve protection device, for example, replacing the valve protection device or replacing the board in the valve protection device; optionally, the valve control device or other device (such as a monitoring device or a recording device) that receives the first message can also directly connect to the maintenance device to perform operations such as program upgrades, report log retrieval, variable viewing, problem tracing and location on the faulty valve protection device, so as to achieve problem finding, problem location, problem analysis, and ultimately problem solving.

[0079] The valve control system protection device described in the embodiment of the present application can detect the faulty valve protection device through the maintenance mark of the three-out-of-two device, so as to report the alarm of maintenance inconsistency, thereby instructing the peripheral valve control equipment or other equipment to handle the faulty valve protection device, realize automatic detection and processing of faults, and improve maintenance efficiency.

[0080] In one embodiment, based on the scenario in which the valve protection device involved in the above embodiment fails, the above valve protection device is also used to send a second message to the three-out-of-two device when it detects that its own fault processing is completed; the second message is used to indicate the verification of the valve protection device whose fault processing has been completed; the three-out-of-two device is also used to verify the valve protection device whose fault processing has been completed according to the second message.

[0081] In the embodiment of the present application, following the above embodiment, after the fault handling of the faulty valve protection device is completed, the fault handling device or the maintenance device can send a fault handling completion message to the valve protection device, and the valve protection device can detect that the fault handling of itself has been completed; optionally, the valve protection device can also automatically detect that the fault handling is completed after the fault handling of itself is completed, for example, after the valve protection device is upgraded, it automatically detects that the upgrade is completed. When the valve protection device detects that its own fault handling is completed, it is necessary to verify the fault handling effect to determine whether the valve protection device has returned to normal, or if the valve protection device has been replaced, it is necessary to determine whether the newly replaced valve protection device can be normally connected to the valve control protection system for operation. In this case, the valve protection device sends a second message to the three-out-of-two device. When the three-out-of-two device receives the second message, it can further report the second message so that other devices (such as valve control devices or monitoring devices) that receive the second message notify the maintenance personnel to verify the restored valve protection device; or other devices that receive the second message connect to the verification device to verify the valve protection device. When maintenance personnel verify the restored valve protection device, they can put into operation the inspection pressure plate of any three-out-of-two device to instruct the three-out-of-two device to verify the valve protection device; when other equipment is connected to the verification equipment to verify the valve protection device, they can send a control signal to the inspection pressure plate of any three-out-of-two device to control the inspection pressure plate of the three-out-of-two device to be put into operation, thereby instructing the three-out-of-two device to verify the valve protection device.

[0082] The embodiment of the present application realizes the verification of the fault handling effect of the valve protection device after the fault handling is completed, which to a certain extent reduces the phenomenon of unstable system operation caused by poor fault handling effect.

[0083] In one embodiment, the above Figure 1 In the valve control system protection device, the maintenance pressure plate connected to each three-out-of-two device is set as the second maintenance pressure plate. The above-mentioned three-out-of-two device is used to parse the second message to obtain a parsing result when it is detected that the second maintenance pressure plate is put into use and it is determined that the second message carries a maintenance identifier; if the parsing result indicates that the valve protection device is operating normally, it is determined that the valve protection device has passed the verification; if the parsing result indicates that the valve protection device is operating abnormally, it is determined that the valve protection device has failed the verification.

[0084] The embodiment of the present application relates to a method for restoring and verifying a faulty valve protection device using a three-out-of-two device, that is, following the above embodiment, when maintenance personnel put the second maintenance pressure plate of any three-out-of-two device into operation, or other equipment (such as a verification device) sends a control signal to any three-out-of-two device to control the second maintenance pressure plate of the three-out-of-two device to be put into operation, the three-out-of-two device can detect the second maintenance pressure plate being put into operation, and at the same time, convert its own working state into a maintenance state. In this case, when the three-out-of-two device receives the second message for verification reported by the faulty valve protection device, it can further determine whether the second message carries a maintenance mark. If it carries a maintenance mark, it means that the faulty valve protection device has been repaired and needs to be verified. At this time, the three-out-of-two device can determine whether it is in a maintenance state. If the three-out-of-two device is in a maintenance state and the second message carries a maintenance mark, it means that the maintenance is consistent. The three-out-of-two device reports a message of maintenance consistency, or reports a return maintenance inconsistency alarm information to instruct the peripheral valve control device or other monitoring equipment to eliminate the previous maintenance inconsistency alarm information. At the same time, when the above-mentioned three-out-of-two device receives the second message, it can parse the second message to determine whether the second message is a message sent by the restored valve protection device in a normal state. If so, it means that the valve protection device has been restored to normal, that is, the analysis result indicating the normal operation of the valve protection device is obtained, and the verification passes; if not, it means that the valve protection device is still faulty, that is, the analysis result indicating the abnormal operation of the valve protection device is obtained, and the verification fails; optionally, the second message is parsed to obtain the current working information or status information of the valve protection device, and then according to the current working information or status information of the valve protection device, it is determined whether the function of the originally faulty or abnormal valve protection device is normal. If normal, the analysis result indicating the normal operation of the valve protection device is obtained, and the verification passes; if abnormal, the analysis result indicating the abnormal operation of the valve protection device is obtained, and the verification fails.

[0085] The embodiment of the present application verifies the valve protection device that has been repaired through a three-out-of-two device, and automatic verification can be achieved by parsing the second message reported by the valve protection device. The verification process does not affect the operation of other devices in the valve control system protection device that are not in maintenance status, and there is no need to stop the entire system for separate verification, which greatly improves the verification efficiency and correspondingly improves the stability of the operation of the valve control system where the entire valve control system protection device is located.

[0086] In one embodiment, the above-mentioned valve protection device is also used to switch its own maintenance state to a non-maintenance state and send a third message to the three-out-of-two device when receiving the first verification pass message; the third message is used to instruct the three-out-of-two device to switch its own working state; the three-out-of-two device is also used to switch its own maintenance state to a non-maintenance state according to the third message.

[0087] Continuing with the above embodiment, when the three-out-of-two device determines that the valve protection device that has been repaired has passed the verification, it can also inform the valve protection device by sending a message. Specifically, a first verification pass message can be sent to the valve protection device. After the valve protection device receives the first verification pass message, it indicates that the valve protection device after the repair can operate normally. At this time, the valve protection device can switch its own working state from the maintenance state to the non-maintenance state, and normally connect to the valve control protection system to operate normally. At the same time, the valve protection device sends a third message to the three-out-of-two device. After the three-out-of-two device receives the third message, it can immediately switch its own working state from the maintenance state to the non-maintenance state to restore the normal working state. After the faulty valve protection device in the device described in this embodiment passes the verification, the corresponding restored valve protection device and the three-out-of-two device used for verification are switched from the maintenance state to the non-maintenance state successively or simultaneously, realizing the seamless connection of the entire valve control protection system from the online maintenance state to the normal working state, and to a certain extent improving the stability of the operation of the entire valve control protection system.

[0088] The following embodiments exemplarily illustrate the scenario where the valve protection device is a fault device, namely:

[0089] If a single valve protection device is abnormal or fails and needs to be handled, such as Figure 2As shown, the operator or maintenance personnel puts in the "maintenance pressure plate" on site. After the valve protection device detects that the maintenance is started, the corresponding valve protection device switches to the maintenance state, and the messages sent are all with maintenance marks. When all the three-out-of-two devices in the valve control system protection device receive the message with the maintenance mark, it is determined whether the maintenance pressure plate of the three-out-of-two device itself is put in. If the maintenance pressure plate of the three-out-of-two device is not put in, that is, it is in a non-maintenance state, it is considered that the maintenance is inconsistent and an alarm is sent. At the same time, the message reported by the corresponding valve protection device is considered to be an invalid message, and the message of the valve protection device is not responded. At this time, the three-out-of-two device and other normal valve protection devices in the valve control system protection device are operating normally. Optionally, the operator can perform fault handling or maintenance on the valve protection device through the host computer software, including but not limited to program upgrades, report log extraction, variable viewing, problem tracing and location positioning, etc., until the problem is solved. If it is necessary to replace the device or board, the power is turned off when the maintenance pressure plate is put into use. After the device or board is replaced, the power is turned on. That is to say, the maintenance of the faulty valve protection device is completed, and the message sent by the first frame of the valve protection device carries the maintenance mark, which has no effect on the operation of the system. At this time, any maintenance pressure plate of the three-out-of-two device is put into use to put the three-out-of-two device in the maintenance state, and the message carrying the maintenance mark sent by the first frame of the valve protection device is parsed to verify and operate the message, or the data of the valve protection device is reported to the fault recording device and the monitoring device through the three-out-of-two device according to the link for message verification and functional operation to confirm whether the original faulty or abnormal valve protection device can operate normally. After that, the maintenance pressure plate of the three-out-of-two device can be withdrawn in sequence, and then the maintenance pressure plate of the valve protection device can be withdrawn, and the valve protection device can be put into operation. The above-mentioned valve control system protection device realizes the seamless switching of the system operation mode, and at the same time ensures the safe and stable operation and processing of the valve control system.

[0090] In one embodiment, a valve control system protection device is also provided, such as Figure 3 As shown, the valve control system protection device is Figure 1 On the basis of the valve control system protection device shown in , connected peripheral devices are added, wherein the peripheral devices include multiple test devices, multiple valve control devices, multiple monitoring devices, and multiple recording devices. Any three-out-of-two device in the valve control system protection device can be connected to each valve control device for information exchange, and the corresponding recording device or monitoring device for information exchange, and when the three-out-of-two device is connected to the valve control device, each valve control device can be connected to its corresponding monitoring device; optionally, each valve control device can exchange data information with the monitoring device through the IEC 61850MMS protocol. Each valve protection device in the valve control system protection device can be connected to the corresponding test equipment to obtain test data. Optionally, Figure 3 The valve control device in the figure can be connected to the corresponding maintenance pressure plate (not shown in the figure). Figure 3 The peripheral devices in the figure are only an optional method, and the specific peripheral devices can be set according to the actual valve control system.

[0091] In one embodiment, the above Figure 3 The maintenance pressure plate connected to each three-out-of-two device in the valve control system protection device is set as the second maintenance pressure plate, that is, Figure 3 The maintenance pressure plate also includes a second maintenance pressure plate connected to the three-out-of-two device. The above-mentioned three-out-of-two device is used to report a first message when a fault signal triggered by the second maintenance pressure plate is detected. The first message is used to instruct fault handling of the three-out-of-two device.

[0092] The embodiment of the present application relates to a scenario where a three-out-of-two device is a faulty device. In this scenario, after detecting that the second maintenance pressure plate connected to the three-out-of-two device is put into operation, the second maintenance pressure plate can trigger the generation of a fault signal, and the connected three-out-of-two device can detect the fault signal, and at the same time switch its own working state from a non-maintenance state to a maintenance state, and can further report a first message to an external valve control device or other device (for example, a monitoring device, a recording device, a detection device, a verification device, etc.) to indicate that the valve control device or other device can process the faulty three-out-of-two device according to the first message. It should be noted that when the faulty three-out-of-two device switches its own working state from a non-maintenance state to a maintenance state, a maintenance mark can be set on the fault signal, and the fault signal carrying the maintenance mark can be sent to the valve control device or other device, so that when the valve control device or other device receives the fault signal, it can determine the three-out-of-two device that has a fault in the valve control system protection device according to the maintenance mark carried by the fault signal.

[0093] The valve control system protection device described in the embodiment of the present application is implemented by arranging a second maintenance pressure plate on the three-out-of-two device, so that when the second maintenance pressure plate is put into operation, the peripheral valve control equipment or other equipment can detect the fault signal of the failed three-out-of-two device, so that the failed three-out-of-two device can be immediately processed when the fault signal is detected, and other three-out-of-two devices or valve protection devices in the valve control system protection device that have not failed are not limited to various maintenance scenarios and can maintain normal operation, thereby realizing an online maintenance method of on-site control when a fault occurs, and to a certain extent improving the stability of the operation of the entire valve control system protection device.

[0094] In one embodiment, based on the scenario in which the three-out-of-two device involved in the above embodiment fails, the above three-out-of-two device is also used to report a fourth message when it detects that its own fault processing is completed; the fourth message is used to instruct verification of the three-out-of-two device that has completed fault processing.

[0095] In the embodiment of the present application, following the above embodiment, after the fault handling of the faulty three-out-of-two device is completed, the fault handling device or the detection device can send a fault handling completion message to the three-out-of-two device, and the three-out-of-two device can detect that the fault handling has been completed; optionally, the three-out-of-two device can also automatically detect that the fault handling is completed after the fault handling is completed, for example, after the three-out-of-two device is upgraded, it automatically detects that the upgrade is completed. When the three-out-of-two device detects that its own fault handling is completed, it is necessary to verify the fault handling effect to determine whether the three-out-of-two device has returned to normal, or if the three-out-of-two device has been replaced, it is necessary to determine whether the newly replaced three-out-of-two device can be normally connected to the valve control protection system for operation. In this case, the three-out-of-two device can report a fourth message to the peripheral valve control device or other device (for example, a monitoring device or a recording device). When the valve control device or other device receives the fourth message, it can notify the maintenance personnel to verify the restored three-out-of-two device; or the valve control device or other device that receives the fourth message connects to the verification device to verify the three-out-of-two device. When maintenance personnel verify the restored three-out-of-two device, they can put into operation the maintenance pressure plate of any valve-controlled device or other equipment or change the working state of any valve-controlled device or other equipment, specifically switching from a non-maintenance state to a maintenance state, to instruct the valve-controlled device or other equipment to verify the three-out-of-two device; when the valve-controlled device or other equipment is connected to the verification device to verify the three-out-of-two device, a control signal can be sent to the maintenance pressure plate of any valve-controlled device or other equipment, or a control signal can be sent to any valve-controlled device or other equipment, thereby instructing any valve-controlled device or other equipment to verify the three-out-of-two device.

[0096] The embodiment of the present application realizes the verification of the fault handling effect by the three-out-of-two device after the fault handling is completed, which to a certain extent reduces the phenomenon of unstable system operation caused by poor fault handling effect.

[0097] In one embodiment, the above Figure 3 In the valve control system protection device, the maintenance pressure plate connected to each valve control device is set as the third maintenance pressure plate. The above-mentioned valve control device is used to parse the fifth message to obtain the analysis result when it detects that the third maintenance pressure plate is put into operation and determines that the fifth message reported by the three-out-of-two device carries a maintenance identifier; if the analysis result indicates that the three-out-of-two device is operating normally, it is determined that the three-out-of-two device has passed the verification; if the analysis result indicates that the three-out-of-two device is operating abnormally, it is determined that the three-out-of-two device has failed the verification.

[0098] The embodiment of the present application relates to a method for a valve control device to perform recovery verification on a faulty three-out-of-two device, that is, following the above embodiment, when a maintenance personnel puts in the third maintenance pressure plate of any valve control device, or other equipment (such as a verification device) sends a control signal to any valve control device to control the third maintenance pressure plate of the valve control device to be put in, the valve control device can detect the third maintenance pressure plate being put in, and at the same time, convert its own working state into a maintenance state. In this case, when the valve control device receives the fifth message for verification reported by the faulty three-out-of-two device, it can further determine whether the fifth message carries a maintenance mark. If it carries a maintenance mark, it means that the faulty three-out-of-two device has been repaired and needs to be verified. At this time, the valve control device can determine whether it is in a maintenance state. If the valve control device is in a maintenance state and the fifth message carries a maintenance mark, it means that the maintenance is consistent. The valve control device reports a message of consistent maintenance, or reports a return maintenance inconsistent alarm information to instruct other devices (such as a verification device) to eliminate the previous maintenance inconsistent alarm information. At the same time, when the above-mentioned valve control device receives the fifth message, it can parse the fifth message to determine whether the fifth message is a message sent by the restored three-out-of-two device in normal state. If so, it means that the three-out-of-two device has been restored to normal, that is, the parsing result indicating the normal operation of the three-out-of-two device is obtained, and the verification passes; if not, it means that the three-out-of-two device is still faulty, that is, the parsing result indicating the abnormal operation of the three-out-of-two device is obtained, and the verification fails; optionally, the fifth message is parsed to obtain the current working information or status information of the three-out-of-two device, and then according to the current working information or status information of the three-out-of-two device, it is determined whether the function of the originally faulty or abnormal three-out-of-two device is normal. If normal, the parsing result indicating the normal operation of the three-out-of-two device is obtained, and the verification passes; if abnormal, the parsing result indicating the abnormal operation of the three-out-of-two device is obtained, and the verification fails.

[0099] In one embodiment, the above-mentioned three-out-of-two device is also used to switch its own maintenance state to a non-maintenance state when receiving a second verification pass message, and send a sixth message to the valve control device; the sixth message is used to instruct the valve control device to switch its own working state.

[0100] Continuing with the above embodiment, when the valve control device determines that the three-out-of-two device that has been repaired has passed the verification, it can also inform the three-out-of-two device by sending a message. Specifically, a second verification pass message can be sent to the three-out-of-two device. After the three-out-of-two device receives the second verification pass message, it indicates that the three-out-of-two device after the repair can operate normally. At this time, the three-out-of-two device can switch its own working state from the maintenance state to the non-maintenance state, and normally connect to the valve control protection system to operate normally. At the same time, the three-out-of-two device sends a sixth message to the valve control device. After the valve control device receives the sixth message, it can immediately switch its own working state from the maintenance state to the non-maintenance state to restore the normal working state. After the three-out-of-two device with a fault in the device described in this embodiment passes the verification, the corresponding restored three-out-of-two device and other equipment used for verification are switched from the maintenance state to the non-maintenance state successively or simultaneously, realizing the seamless connection of the entire valve control protection system from the online maintenance state to the normal working state, and to a certain extent improving the stability of the operation of the entire valve control protection system.

[0101] The following embodiments exemplarily illustrate the scenario where the above three-out-of-two device is a faulty device, namely:

[0102] If a single 3-out-of-2 device has an abnormality or failure and needs to be handled, such as Figure 4As shown, the operator or maintenance personnel puts in the "maintenance pressure plate" on site. After the three-out-of-two device detects that the maintenance is turned on, the corresponding three-out-of-two device switches to the maintenance state, and the messages sent are all with maintenance marks. The valve control equipment or other equipment connected to the three-out-of-two device receives the message with the maintenance mark. If the maintenance pressure plate of the valve control equipment or other equipment itself is not put in, that is, it is not in the maintenance state, it is considered that the maintenance is inconsistent and an alarm is sent. At the same time, the message with the maintenance mark of the corresponding three-out-of-two device is considered to be an invalid message, and the message of this device is no longer responded. At this time, the valve control equipment, other equipment, and other normal three-out-of-two devices operate normally. At this time, the operator can use the upper computer software to repair the three-out-of-two device, not limited to program upgrades, report log retrieval, variable viewing, problem tracing and positioning, etc., until the problem is solved. If it is necessary to replace the board in the three-out-of-two device or the three-out-of-two device, the power is turned off when the maintenance pressure plate is put into use. After the board in the three-out-of-two device or the three-out-of-two device is replaced, the power is turned on. The three-out-of-two device sends the message with a maintenance mark in the first frame, which has no effect on the operation of the system. At this time, by verifying whether the three-out-of-two device is in operation after maintenance, any maintenance pressure plate of the valve control device (or valve protection device) is put into use. The valve protection device or the valve control device is in maintenance state at this time, and the message with the maintenance mark of the three-out-of-two device is judged. At this time, the maintenance is consistent, and the maintenance inconsistency alarm is restored. At the same time, the message with the maintenance mark of the three-out-of-two device is parsed to realize the verification and function operation of the message, or the data of the three-out-of-two device is reported to the valve control device or other equipment (fault recording equipment and monitoring equipment) according to the link for message verification and function operation to confirm whether the original faulty or abnormal three-out-of-two device can operate normally. After that, the maintenance platen of the valve control equipment or other equipment can be withdrawn in sequence, and then the maintenance platen of the three-out-of-two device can be withdrawn, and the three-out-of-two device can be put into operation. The above-mentioned valve control system protection device realizes the seamless switching of the system operation mode, and at the same time ensures the safe and stable operation of the valve control system.

[0103] In one embodiment, a valve control system protection device is also provided, such as Figure 5 As shown, the valve control system protection device is Figure 3 On the basis of the structure shown in , it includes two three-out-of-two devices and three valve protection devices, each of the three-out-of-two devices is provided with an inspection pressure plate, and each of the valve protection devices is provided with an inspection pressure plate.

[0104] Regarding the above Figure 5 The description of each device in the valve control system protection device and the corresponding working principle are the same as those described above. Figure 1-Figure 4 The devices described in the embodiments and the corresponding working principles are basically the same. Please refer to the above description for details, which will not be repeated here.

[0105] In one embodiment, a maintenance method is also provided, which is applied to the above Figure 1-Figure 5 The valve control system protection device described in any embodiment, the maintenance pressure plate in the valve control system protection device includes a first maintenance pressure plate connected to the valve protection device, and a second maintenance pressure plate connected to the three-out-of-two device. Specifically, the maintenance method includes: when the three-out-of-two device detects a fault signal, it reports a first message; wherein the first message is used to indicate that the fault device corresponding to the fault signal is to be processed; the fault signal is triggered by the maintenance pressure plate connected to the three-out-of-two device, or by the maintenance pressure plate connected to the valve protection device, and the fault device is the three-out-of-two device or the valve protection device.

[0106] For the scenario where a valve protection device fails in the valve control system protection device, in this scenario, each device in the valve control system protection device performs the following steps:

[0107] When the faulty valve protection device detects that the first maintenance pressure plate is put into operation, it sends a fault signal to the three-out-of-two device and switches its own working state to the maintenance state; the fault signal includes a maintenance mark indicating the maintenance state.

[0108] When the two-out-of-three device determines that the working state indicated by the maintenance mark is inconsistent with its own working state, it generates a first message; the first message is used to instruct the valve protection device to perform fault processing.

[0109] When the valve protection device detects that its own fault processing is completed, it sends a second message to the three-out-of-two device; the second message is used to instruct the verification of the valve protection device whose fault processing has been completed; the corresponding three-out-of-two device verifies the valve protection device whose fault processing has been completed according to the second message.

[0110] When the two-out-of-three device detects that the second maintenance pressure plate is put into operation and determines that the second message carries a maintenance identifier, it parses the second message to obtain a parsing result; if the parsing result indicates that the valve protection device is operating normally, it is determined that the valve protection device has passed the verification; if the parsing result indicates that the valve protection device is operating abnormally, it is determined that the valve protection device has failed the verification.

[0111] The valve protection device, when receiving the first verification pass message, switches its own maintenance state to a non-maintenance state and sends a third message to the three-out-of-two device; the third message is used to instruct the three-out-of-two device to switch its own working state; the three-out-of-two device also switches its own maintenance state to a non-maintenance state according to the third message.

[0112] For the scenario where a three-out-of-two device fails in the valve control system protection device, in this scenario, each device in the valve control system protection device performs the following steps:

[0113] When the faulty three-out-of-two device detects the fault signal triggered by the second maintenance pressure plate, it reports a first message, and the first message is used to instruct to perform fault processing on the three-out-of-two device.

[0114] When the two-out-of-three device detects that its own fault processing is completed, it reports a fourth message; the fourth message is used to instruct verification of the two-out-of-three device that has completed the fault processing.

[0115] When receiving the second verification pass message, the three-out-of-two device switches its own maintenance state to a non-maintenance state.

[0116] The embodiment of the present application relates to the use of the above-mentioned valve protection device in the scenario where the valve protection device fails. Figure 1-Figure 5 The online maintenance method of the valve control system protection device described in any embodiment can be found in the above-mentioned specific method. Figure 1-Figure 5 The description of the embodiments is not repeated here.

[0117] In one embodiment, a valve control protection system is also provided, the valve control protection system comprising a valve control device and the above Figure 1-Figure 5 The valve control system protection device described in any embodiment; the three-out-of-two device in the valve control system protection device is connected to the valve control device. The structure of the valve control protection system described in the embodiment of the present application is similar to the aforementioned Figure 2 The structures described in the embodiments are basically the same. Please refer to the above content for detailed description, which will not be repeated here.

[0118] Each module in the valve control system protection device can be implemented in whole or in part by software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0119] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0120] When the three-out-of-two device detects a fault signal, it reports a first message; the first message is used to instruct the fault device corresponding to the fault signal to be processed; the fault signal is triggered by a maintenance pressure plate connected to the three-out-of-two device, or by a maintenance pressure plate connected to the valve protection device, and the fault device is the three-out-of-two device or the valve protection device.

[0121] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0122] When the valve protection device detects that the first maintenance pressure plate is put into operation, the valve protection device sends the fault signal to the three-out-of-two device and switches its own working state to the maintenance state; the fault signal includes a maintenance mark indicating the maintenance state.

[0123] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0124] When the valve protection device detects that its own fault processing is completed, it sends a second message to the three-out-of-two device; the second message is used to instruct the verification of the valve protection device whose fault processing has been completed; correspondingly, the three-out-of-two device verifies the valve protection device whose fault processing has been completed according to the second message.

[0125] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0126] When the two-out-of-three device detects that the second maintenance pressure plate is put into operation and determines that the second message carries a maintenance identifier, it parses the second message to obtain a parsing result; if the parsing result indicates that the valve protection device is operating normally, it is determined that the valve protection device has passed the verification; if the parsing result indicates that the valve protection device is operating abnormally, it is determined that the valve protection device has failed the verification.

[0127] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0128] The valve protection device, when receiving the first verification pass message, switches its own maintenance state to a non-maintenance state and sends a third message to the three-out-of-two device; the third message is used to instruct the three-out-of-two device to switch its own working state; the three-out-of-two device also switches its own maintenance state to a non-maintenance state according to the third message.

[0129] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0130] The maintenance platen includes a second maintenance platen connected to the three-out-of-two device, and the method further includes:

[0131] When the three-out-of-two device detects the fault signal triggered by the second maintenance pressure plate, it reports the first message, and the first message is used to instruct to perform fault processing on the three-out-of-two device.

[0132] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0133] When the two-out-of-three device detects that its own fault processing is completed, it reports a fourth message; the fourth message is used to instruct verification of the two-out-of-three device that has completed the fault processing.

[0134] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0135] When receiving the second verification pass message, the three-out-of-two device switches its own maintenance state to a non-maintenance state.

[0136] The above embodiment provides a computer-readable storage medium, whose implementation principle and technical effect are similar to those of the above method embodiment, and will not be repeated here.

[0137] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0138] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0139] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the present application. It should be noted that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A valve control system protection device, It is characterized in that The valve control system protection device comprises a three-out-of-two device and a valve protection device connected to the three-out-of-two device, and both the three-out-of-two device and the valve protection device are provided with an inspection pressure plate; The three-out-of-two device is used to report a first message when a fault signal is detected; the first message is used to instruct the processing of the fault device corresponding to the fault signal; the fault signal is triggered by the maintenance pressure plate, and the fault device is the three-out-of-two device or the valve protection device.

2. The valve control system protection device according to claim 1, It is characterized in that The inspection pressure plate includes a first inspection pressure plate connected to the valve protection device; The valve protection device is used to send the fault signal to the three-out-of-two device and switch its own working state to the maintenance state when it detects that the first maintenance pressure plate is put into use; the fault signal includes a maintenance mark indicating the maintenance state.

3. The valve control system protection device according to claim 2, It is characterized in that The two-out-of-three device is used to generate the first message when it is determined that the working state indicated by the maintenance mark is inconsistent with its own working state; the first message is used to instruct the valve protection device to perform fault processing.

4. The valve control system protection device according to claim 3, It is characterized in that The valve protection device is further configured to send a second message to the three-out-of-two device when detecting that the fault processing of the valve protection device is completed; the second message is configured to instruct verification of the valve protection device for which the fault processing is completed; The three-out-of-two device is also used to verify the valve protection device after the fault processing is completed according to the second message.

5. The valve control system protection device according to claim 4, It is characterized in that The maintenance platen also includes a second maintenance platen connected to the three-out-of-two device. The three-out-of-two device is used to parse the second message to obtain a parsing result when it is detected that the second maintenance pressure plate is put into operation and it is determined that the second message carries a maintenance identifier; if the parsing result indicates that the valve protection device is operating normally, it is determined that the valve protection device has passed the verification; if the parsing result indicates that the valve protection device is operating abnormally, it is determined that the valve protection device has not passed the verification.

6. The valve control system protection device according to claim 5, It is characterized in that The valve protection device is further used to switch its own maintenance state to a non-maintenance state and send a third message to the three-out-of-two device when receiving the first verification pass message; the third message is used to instruct the three-out-of-two device to switch its own working state; The three-out-of-two device is also used to switch its own maintenance state to a non-maintenance state according to the third message.

7. The valve control system protection device according to claim 2, It is characterized in that The inspection pressure plate also includes a second inspection pressure plate connected to the three-out-of-two device; The three-out-of-two device is used to report the first message when a fault signal triggered by the second maintenance pressure plate is detected, and the first message is used to instruct fault handling of the three-out-of-two device.

8. The valve control system protection device according to claim 7, It is characterized in that The three-out-of-two device is further used to report a fourth message when detecting that its own fault processing is completed; the fourth message is used to instruct verification of the three-out-of-two device that has completed fault processing.

9. The valve control system protection device according to claim 8, It is characterized in that The three-out-of-two device is also used to switch its own maintenance state to a non-maintenance state when receiving a second verification pass message.

10. The valve control system protection device according to any one of claims 1 to 9, It is characterized in that The valve control system protection device includes two of the three-out-of-two devices and three of the valve protection devices. Each of the three-out-of-two devices is provided with an inspection pressure plate, and each of the valve protection devices is provided with an inspection pressure plate.

11. A maintenance method, It is characterized in that The maintenance method is applied to a valve control system protection device, the valve control system protection device comprises a three-out-of-two device and a valve protection device, both of which are provided with a maintenance pressure plate; the maintenance method comprises: When the three-out-of-two device detects a fault signal, it reports a first message; the first message is used to instruct the fault device corresponding to the fault signal to be processed; the fault signal is triggered by a maintenance pressure plate connected to the three-out-of-two device, or by a maintenance pressure plate connected to the valve protection device, and the fault device is the three-out-of-two device or the valve protection device.

12. The method according to claim 11, It is characterized in that The maintenance pressure plate includes a first maintenance pressure plate connected to the valve protection device, and the method further includes: When the valve protection device detects that the first maintenance pressure plate is put into operation, the valve protection device sends the fault signal to the three-out-of-two device and switches its own working state to the maintenance state; the fault signal includes a maintenance mark indicating the maintenance state.

13. The method according to claim 12, It is characterized in that The method further comprises: The two-out-of-three device generates the first message when determining that the working state indicated by the maintenance mark is inconsistent with its own working state; the first message is used to instruct the valve protection device to perform fault processing.

14. The method according to claim 13, It is characterized in that The method further comprises: When the valve protection device detects that its own fault processing is completed, it sends a second message to the three-out-of-two device; the second message is used to instruct the verification of the valve protection device whose fault processing has been completed; correspondingly, the three-out-of-two device verifies the valve protection device whose fault processing has been completed according to the second message.

15. The method according to claim 14, It is characterized in that When the maintenance pressing plate further includes a second maintenance pressing plate connected to the three-out-of-two device, the method further includes: When the two-out-of-three device detects that the second maintenance pressure plate is put into operation and determines that the second message carries a maintenance identifier, it parses the second message to obtain a parsing result; if the parsing result indicates that the valve protection device is operating normally, it is determined that the valve protection device has passed the verification; if the parsing result indicates that the valve protection device is operating abnormally, it is determined that the valve protection device has failed the verification.

16. The method according to claim 15, It is characterized in that The method further comprises: The valve protection device, when receiving the first verification pass message, switches its own maintenance state to a non-maintenance state and sends a third message to the three-out-of-two device; the third message is used to instruct the three-out-of-two device to switch its own working state; the three-out-of-two device also switches its own maintenance state to a non-maintenance state according to the third message.

17. The method according to claim 12, It is characterized in that The method further comprises: The maintenance platen includes a second maintenance platen connected to the three-out-of-two device, and the method further includes: When the three-out-of-two device detects the fault signal triggered by the second maintenance pressure plate, it reports the first message, and the first message is used to instruct to perform fault processing on the three-out-of-two device.

18. The method according to claim 17, It is characterized in that The method further comprises: When the two-out-of-three device detects that its own fault processing is completed, it reports a fourth message; the fourth message is used to instruct verification of the two-out-of-three device that has completed the fault processing.

19. The method according to claim 18, It is characterized in that The method further comprises: When receiving the second verification pass message, the three-out-of-two device switches its own maintenance state to a non-maintenance state.

20. A valve control protection system, It is characterized in that The valve-controlled protection system comprises a valve-controlled device and a valve-controlled system protection device as described in any one of claims 1 to 10; the three-out-of-two device in the valve-controlled system protection device is connected to the valve-controlled device.

21. A computer-readable storage medium having a computer program stored thereon, It is characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 11 to 19 are implemented.

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