Signal shielding method for power grid maintenance and related device

Abstract

The invention relates to the technical field of power grid operation and maintenance, and particularly provides a power grid maintenance signal shielding method comprising the following steps: obtaining a maintenance list of maintenance equipment, the maintenance equipment being power grid equipment needing to be maintained; acquiring a telecontrol information table of a power transformation station where the maintenance equipment is located according to the maintenance list; generating a corresponding shielding table according to the telecontrol information table; and obtaining the working state of the maintenance equipment, and shielding or unshielding the shielding signal in the shielding table according to the working state. The invention further provides a processing system for implementing the processing method, a medium and electronic equipment. The problems that an existing shielding method depends on manual judgment and disposal, processing time is long, circulation is slow, efficiency is low, leakage monitoring and mistaken monitoring risks are extremely high, stable operation and power supply reliability of a power system are threatened, the automation degree is limited, and distribution network operation and maintenance requirements are difficult to meet can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid operation and maintenance, and in particular to a shielding method, system and medium for signals of power grid maintenance. Background Art

[0002] In recent years, the power grid dispatching center has realized the connection with various power grid nodes such as substations and power plants through a dedicated data communication network, and receives data information sent by the primary and secondary equipment of the substation as the basis for judging whether the power equipment has failed. When the primary and secondary equipment of the substation are under maintenance, a large number of alarm signals will be generated for the test related information, making it difficult for the system to distinguish whether the alarm signal received is a signal of power grid maintenance or a fault tripping signal. In order to prevent the signal of power grid maintenance from interfering with the work of the dispatching center, it is necessary to shield the signal generated by the corresponding equipment during the maintenance process.

[0003] Due to the difference in the degree of automation between primary and secondary equipment, the traditional method of shielding signals for power grid maintenance is to assign corresponding professionals to handle primary equipment maintenance and secondary equipment maintenance respectively. That is, when repairing primary equipment with a low degree of automation, the operation and maintenance personnel report the on-site situation to the dispatching center, and the dispatching duty officer issues the position and listing commands to the primary equipment through the master station, manually screens the signals that need to be shielded and shields them, and then unshields them according to the same process after the maintenance is completed; when repairing secondary equipment with a high degree of automation, the maintenance personnel must first apply to the automation class personnel of the dispatching center to block the relevant interval signals, and the automation class personnel remotely and manually screen the signals that need to be shielded and shield them, and then unshield them according to the same process after the maintenance work is completed. This traditional shielding method relies on manual judgment and disposal, and requires abnormally high judgment ability of the operator. Not only is the processing time long, the flow is slow, and the efficiency is low, but the blocking time is difficult to accurately match the equipment maintenance time. In addition, when multiple plants and stations operate the reorder at the same time, it is very easy to mistakenly shield the operation interval signal, and the risk of missed monitoring and mismonitoring is high, which is not conducive to the stable operation of the power system and the reliability of power supply.

[0004] The existing improved shielding method is that the distribution network OCS programmed sequence operation borrows the interaction between the distribution network OMS and the distribution network OCS to realize the automatic listing operation of certain specific secondary devices. However, the scope of application of this method only covers the distribution network feeder, and the alarm shielding object is limited to the state change of the relevant remotely controlled equipment. The alarm signal of the secondary equipment cannot be shielded at all, and the functional limitations are large, making it difficult to meet the wider distribution network operation and maintenance needs. Summary of the invention

[0005] The purpose of the embodiments of the present disclosure is to solve the problem that the signal shielding method for power grid maintenance in the existing power grid relies on manual judgment and disposal, has a long processing time, slow flow, low efficiency, and a very high risk of missed monitoring and false monitoring, threatening the stable operation of the power system and the reliability of power supply, and has a limited degree of automation and is difficult to meet the distribution network operation and maintenance needs.

[0006] In order to achieve the above objectives, the embodiments of the present disclosure adopt the following technical solutions:

[0007] According to one aspect of the present invention, there is provided 1. a method for shielding a signal of a power grid maintenance, which is applied to a dispatching center server, and the shielding method comprises the following steps:

[0008] Generate a maintenance sheet for the corresponding equipment, and generate a shielding table based on the maintenance sheet;

[0009] According to the maintenance order, the maintenance work information of the corresponding equipment is associated, and the start and stop status of the maintenance work are monitored;

[0010] When the maintenance work starts, shielding the signal of the power grid maintenance of the corresponding equipment according to the shielding table;

[0011] Upon completion of the maintenance work, the shielding is released.

[0012] In some embodiments, wherein the masking table includes operation intervals and / or masking keywords;

[0013] The signal of the power grid maintenance of the corresponding device according to the shielding comprises: suppressing the display of the signal of the power grid maintenance according to the operation interval and / or the shielding keyword in the shielding table, or adding a maintenance tag to the signal of the power grid maintenance;

[0014] The lifting of the shielding includes: displaying the signal normally, or canceling the maintenance label.

[0015] In some embodiments, generating a shielding table according to the maintenance order includes:

[0016] Acquire a telecontrol information table, and generate a shielding table according to the telecontrol information table;

[0017] The telecontrol information table includes the interval and keywords of the sending information of the corresponding device.

[0018] In some embodiments, generating a shielding table according to the maintenance order further includes: after releasing the shielding, adding the shielding table to a historical shielding table.

[0019] In some embodiments, associating the maintenance work information of the corresponding equipment according to the maintenance order and monitoring the start status and stop status of the maintenance work includes:

[0020] Determine whether the corresponding device needs to be dispatched and commanded;

[0021] If not necessary, associate the corresponding maintenance plan and / or work ticket, and shield the signal of power grid maintenance of the corresponding equipment according to the status change of the maintenance plan and / or work ticket;

[0022] If necessary, associate the corresponding on / off operation tasks, and shield the power grid maintenance signal of the corresponding equipment according to the execution status of the on / off operation tasks.

[0023] In some embodiments, the equipment that needs to be dispatched and commanded to operate includes: primary equipment, protection devices, and safety devices.

[0024] In some embodiments, the maintenance status is monitored, and when the shielding is released, the monitored maintenance status is checked to determine whether the shielding needs to continue, and if necessary, the signal of the power grid maintenance of the corresponding device continues to be shielded.

[0025] According to another aspect of the present invention, a signal shielding system for power grid maintenance is provided, including a dispatching center server, wherein the dispatching center server is connected to a dispatching center end and a substation end, and is used to implement the steps of the above-mentioned shielding method.

[0026] According to another aspect of the present invention, a storage medium is provided, storing a computer program, wherein the computer program implements the steps of the above method when executed by a processor.

[0027] According to another aspect of the present invention, an electronic device is provided, comprising at least a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps of the above method when executing the computer program in the memory.

[0028] The disclosed embodiment realizes precise control of the signal shielding time of power grid maintenance by shielding the status of monitoring maintenance work; generates the shielding table according to the telecontrol information table and historical shielding, improves the correctness of signal shielding, eliminates the interference of alarms generated by equipment maintenance on monitoring services, and improves work efficiency; maintains the shielding table historical database, which can further improve the accuracy of automatically generated shielding tables and reduce the time for judgment and confirmation by the dispatching station. Therefore, the disclosed embodiment can solve the problems that the existing shielding method relies on manual judgment and disposal, has a long processing time, slow circulation, low efficiency, and a very high risk of missed monitoring and false monitoring, threatening the stable operation and power supply reliability of the power system, and has a limited degree of automation and is difficult to meet the distribution network operation and maintenance needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 A schematic diagram of the steps of a signal shielding method for power grid maintenance according to an embodiment of the present disclosure;

[0031] Figure 2 A schematic diagram of the steps of generating a shielding table in the shielding method of an embodiment of the present disclosure;

[0032] Figure 3 It is a structural schematic diagram of a shielding system according to an embodiment of the present disclosure; DETAILED DESCRIPTION

[0033] Various aspects and features of the present disclosure are described herein with reference to the drawings.

[0034] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

[0035] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0036] These and other characteristics of the present disclosure will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the attached drawings.

[0037] It should also be understood that, although the present disclosure has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present disclosure that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0038] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0039] Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are merely examples of the present disclosure, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of ways with substantially any suitable detailed structure.

[0040] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present disclosure.

[0041] Embodiment 1

[0042] The present invention discloses a method for shielding a signal of a power grid maintenance, which is applied to a power grid operation management system. Specifically, in this embodiment, Figure 3 The dispatch center server is a server function module arranged in the dispatch center, which is subordinate to the existing OMS system (grid operation management system), and can call the data in the corresponding system of the grid and perform calculations and send instructions according to the needs. In the embodiment of the present disclosure, the OMS system communicates with the OCS system (grid operation management system), the GMP platform (grid management platform), and the DICP system (dispatching command system).

[0043] See also Figure 1 , the shielding method comprises the following steps:

[0044] S1: Obtain a maintenance list of corresponding equipment, wherein the maintenance equipment shown is the power grid equipment that needs to be repaired.

[0045] See also Figure 2 , generate a maintenance order for the corresponding equipment. Specifically, the maintenance order for the corresponding equipment is generated according to the maintenance plan formulated by the personnel. The maintenance plan can be used to determine the maintenance working time, maintenance object, and maintenance status, and generate a maintenance order, which will be submitted to the professional specialists for review.

[0046] In this embodiment, the maintenance list at least includes the type and name of the device, so that the dispatch center server can identify the corresponding device. Optionally, the dispatch center server can send the maintenance list to a port of a specialist for review, and then generate a shielding table and associate maintenance work information after the review is passed.

[0047] Furthermore, according to the type of equipment, the inspection and maintenance forms of the equipment are sent to different specialists for review: the inspection and maintenance forms of primary equipment, protection devices, and safety and automatic devices are sent to the dispatching personnel for review and entered into the DICP system; the inspection and maintenance forms of automation equipment and network security devices are sent to the automation class for review and entered into the OCS system.

[0048] S3: Obtaining the telecontrol information table of the maintenance equipment at the substation according to the maintenance list.

[0049] Specifically, the telecontrol information table corresponding to the maintenance equipment recorded in the maintenance list is obtained from the OCS system. The telecontrol information table is in compliance with relevant regulations and integrates the information such as the collection, access scope, classification and grading of the real-time monitoring signals of the plant and station equipment. The table can reflect which signals are in a certain interval and which signals are combined and sent up. The information table is maintained by the automation class; in this embodiment, the telecontrol information table at least contains the operation interval and keywords of the equipment.

[0050] S3: Generate a corresponding shielding table according to the telecontrol information table.

[0051] Generating a corresponding shielding table according to the telecontrol information table includes: obtaining a shielding signal associated with the maintenance equipment from the telecontrol information table according to the operation interval of the maintenance equipment; or obtaining a shielding signal associated with the maintenance equipment from the telecontrol information table according to a preset keyword. The shielding signal includes at least one of a combined signal and a maintenance alarm signal, and the maintenance alarm signal includes at least one of an operation interval alarm signal and an equipment alarm signal.

[0052] See also Figure 2 , generating a shielding table according to the maintenance order specifically includes: obtaining the maintenance order S300, determining whether there is a historical maintenance order for equipment of the same type as the equipment corresponding to the maintenance order S301; if not, calling the telecontrol information table from the OCS system, and generating a shielding table according to the telecontrol information table S302; if yes, generating a shielding table according to the shielding table corresponding to the historical maintenance order S303; manually reviewing, applying or modifying the shielding table, setting the equipment operation interval and / or shielding words in the shielding table S304, and forming a shielding table S305, wherein the shielding table includes the operation interval and / or shielding keywords.

[0053] Optionally, after the shielding table is generated, it can be sent to different specialists for review based on the type of equipment, similar to the previous step. The specialists can adjust the operating interval and / or shielding keywords based on their professional knowledge or work experience.

[0054] Furthermore, after the shielding is released, the shielding table is added to the historical shielding table, the number of historical shielding tables is increased, and the shielding table historical database is maintained, which is conducive to improving the efficiency and accuracy of subsequent use.

[0055] According to the operating intervals and / or shielding words in the shielding table, all signals associated with the maintenance equipment can be identified, and accurate shielding of the shielding signals can be achieved. Not only can all signals that need to be shielded be shielded, but also wrong shielding or missed shielding can be avoided.

[0056] Therefore, the problems in the prior art that manual judgment and shielding are prone to errors, and that when multiple plants and stations are operating the re-command at the same time, the operating interval signal is easily shielded by mistake, resulting in a high risk of missed monitoring and false monitoring can be solved; the problems in the prior art that the automatic listing operation of certain specific secondary equipment is realized by using the interaction between the distribution network OMS and the distribution network OCS, but the application scope is small and the alarm signals of the secondary equipment cannot be shielded at all, can be solved.

[0057] S4: Acquire the working status of the maintenance equipment, and shield or unshield the shielding signal in the shielding table according to the working status.

[0058] The maintenance work information of the maintenance equipment is associated with the maintenance order to monitor the working status of the maintenance equipment; when the maintenance equipment is in the start-up state, the shielding table is synchronized to the power grid operation control system to suppress the shielding signal in the shielding table or mark the shielding signal; when the maintenance equipment is in the completion state, the power grid operation control system is notified to lift the shielding of the shielding signal.

[0059] In a specific embodiment, obtaining the working status of the maintenance equipment, shielding or unshielding the shielding signal in the shielding table according to the working status includes: associating the maintenance work information of the corresponding equipment, monitoring the start status and shutdown status of the maintenance work, specifically including: reading the maintenance order, judging whether the corresponding equipment needs to be dispatched and ordered; if not, associating the corresponding maintenance plan and / or work ticket, shielding the signal of the power grid maintenance of the corresponding equipment according to the status change of the maintenance plan and / or work ticket; if necessary, associating the corresponding startup and shutdown operation task, shielding the signal of the power grid maintenance of the corresponding equipment according to the execution of the startup and shutdown operation task. It is worth noting that after associating the maintenance work information of the corresponding equipment, the maintenance work status information should also be synchronized.

[0060] Furthermore, the equipment that needs to be dispatched and operated includes: primary equipment, protection devices, and safety devices.

[0061] That is to say, when judging whether the equipment is a primary equipment, protection device, or safety and automatic device, the corresponding DICP system operation tasks are associated to monitor whether the commissioning and decommissioning operation tasks have been started and completed; if it is an automation device or a network security device, the OMS system is used to associate the corresponding maintenance plan and work ticket of the GMP platform to monitor whether the OCS system has received the corresponding maintenance start and completion information. In this way, the maintenance start and completion status information can be obtained in a timely and accurate manner, saving the time spent on the reporting and approval procedures in the existing technology.

[0062] Furthermore, when the maintenance work starts, shielding the power grid maintenance signal of the corresponding equipment according to the shielding table includes: synchronizing the shielding table to the OCS system, suppressing the display of the power grid maintenance signal according to the operating interval and / or the shielding keyword in the shielding table, or adding a maintenance tag to the power grid maintenance signal.

[0063] Specifically, if the equipment is judged to be a primary equipment, a protection device, a safety and automatic device, or other equipment that requires dispatching and commanding operations, when it is detected that the start of the operation task is detected, the power grid maintenance signal of the corresponding equipment is shielded according to the shielding table; if the equipment is judged to be an automation device or a network security device, when the corresponding start-up status information is received, the power grid maintenance signal of the corresponding equipment is shielded according to the shielding table.

[0064] Removing the shielding includes: displaying the signal normally, or canceling the maintenance label.

[0065] Specific, combined Figure 1 From the perspective of the above, if the equipment is judged to be a primary equipment, a protection device, an automatic safety device or other equipment that requires dispatching and commanding operations, the shielding will be lifted when it is monitored that the operation tasks are completed; if the equipment is judged to be an automation device or a network security device, the shielding will be lifted when the corresponding completion status information is received.

[0066] In addition, in a specific fact mode, in addition to the above shielding according to the start and end of the working status, optionally, the shielding start time and shielding duration can be set in the maintenance list and / or shielding table, so as to achieve the timing of shielding.

[0067] In summary, the disclosed embodiments achieve precise control of the signal shielding time of power grid maintenance by shielding the status of the monitoring maintenance work; generate the shielding table according to the telecontrol information table and historical shielding, improve the correctness of signal shielding, eliminate the interference of alarms generated by equipment maintenance on monitoring services, and improve work efficiency; maintain the shielding table history database, which can further improve the accuracy of automatically generated shielding tables and reduce the time for judgment and confirmation by the dispatching station. Therefore, the disclosed embodiments can solve the problems that the existing shielding methods rely on manual judgment and disposal, have long processing time, slow circulation, low efficiency, extremely high risk of missed monitoring and false monitoring, threaten the stable operation and power supply reliability of the power system, have limited automation, and are difficult to meet the distribution network operation and maintenance needs.

[0068] Embodiment 2

[0069] A signal shielding system for power grid maintenance, characterized by comprising a dispatching center server 1, wherein the dispatching center server 1 is a functional module of an OMS system.

[0070] Further, such as Figure 3 As shown, the shielding system also includes:

[0071] The OMS system is preferably configured in network security zone III, connected to the dispatch center server, capable of performing data management operations based on the dispatch center server, capable of retrieving data required for management (such as telecontrol information tables, maintenance status information), and capable of sending maintenance orders and shielding tables.

[0072] The OCS system is preferably configured in network security zone I and connected to the OMS system. It is used to store and control the working information of the dispatching center. It can provide the OMS system with a telecontrol information table and maintenance status information of equipment that requires dispatching and commanding operations, and can receive a shielding table and shield information according to the shielding table.

[0073] The DICP system is preferably configured in safety zone II and connected to the OMS system. It can receive the maintenance order sent by the OMS system, send the corresponding commissioning and decommissioning operation tasks to the equipment end that needs maintenance according to the maintenance order, and report the status of the corresponding equipment end executing and completing the commissioning and decommissioning operation tasks to the OMS system.

[0074] The GMP platform is preferably configured in safety zone IV and connected to the OMS system, so as to import the maintenance plan into the OMS system and generate a maintenance order, and automatically associate the work ticket and the maintenance work order status according to the maintenance order.

[0075] The above system makes use of existing power grid equipment as much as possible, is highly practical, and can implement the steps of the shielding method described in Example 1.

[0076] Embodiment 3

[0077] A storage medium stores a computer program, wherein the computer program, when executed by a processor, implements the steps of the shielding method described in Embodiment 1.

[0078] Embodiment 4

[0079] An electronic device comprises at least a memory and a processor, wherein a computer program is stored in the memory, and wherein the processor implements the steps of the shielding method described in Embodiment 1 when executing the computer program in the memory.

[0080] The storage medium may be included in the electronic device, or may exist independently without being installed in the electronic device.

[0081] The storage medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device: obtains at least two Internet Protocol addresses; sends a node evaluation request including at least two Internet Protocol addresses to a node evaluation device, wherein the node evaluation device selects an Internet Protocol address from the at least two Internet Protocol addresses and returns it; receives the Internet Protocol address returned by the node evaluation device; wherein the obtained Internet Protocol address indicates an edge node in a content distribution network.

[0082] Alternatively, the storage medium carries one or more programs, and when the one or more programs are executed by the electronic device, the electronic device: receives a node evaluation request including at least two Internet Protocol addresses; selects an Internet Protocol address from the at least two Internet Protocol addresses; and returns the selected Internet Protocol address; wherein the received Internet Protocol address indicates an edge node in a content distribution network.

[0083] Computer program code for performing operations of the present disclosure may be written in one or more programming languages, or a combination thereof, including, but not limited to, object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" or similar programming languages. The program code may be executed entirely on the passenger computer, partially on the passenger computer, as a separate software package, partially on the passenger computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the passenger computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0084] It should be noted that the storage medium disclosed above may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The computer readable signal medium may also be any storage medium other than a computer readable storage medium, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0085] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0086] The units involved in the embodiments described in the present disclosure may be implemented by software or hardware, wherein the name of a unit does not, in some cases, limit the unit itself.

[0087] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0088] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0089] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other to form a technical solution.

[0090] In addition, although each operation is described in a specific order, this should not be understood as requiring these operations to be performed in the specific order shown or in a sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although some specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the present disclosure. Some features described in the context of a separate embodiment can also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination mode.

[0091] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

[0092] Multiple embodiments of the present disclosure are described in detail above, but the present disclosure is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications to the embodiments based on the concepts of the present disclosure, and these variations and modifications should all fall within the scope of protection required by the present disclosure.

Claims

1. A signal shielding method for power grid maintenance, characterized in that: Application to power grid operation management system includes the following steps: Obtain a maintenance list of maintenance equipment, wherein the maintenance equipment shown is the power grid equipment that needs to be repaired; Obtaining the telecontrol information table of the substation where the maintenance equipment is located according to the maintenance list; Generate a corresponding shielding table according to the telecontrol information table; The working status of the maintenance equipment is obtained, and the shielding signal in the shielding table is shielded or unshielded according to the working status.

2. The shielding method according to claim 1, characterized in that: in, Generating a corresponding shielding table according to the telecontrol information table includes: According to the operation interval of the maintenance equipment, a shielding signal associated with the maintenance equipment is obtained from the telecontrol information table; or, Acquire a shielding signal associated with the maintenance equipment from the telecontrol information table according to a preset keyword; The shielding signal includes at least one of a combined signal and a maintenance alarm signal, and the maintenance alarm signal includes at least one of an operation interval alarm signal and an equipment alarm signal.

3. The shielding method according to claim 1, characterized in that: in, After obtaining the maintenance order of the maintenance equipment, the method further includes: Determine whether there is a historical maintenance order with the same maintenance type as the maintenance order; If it exists, obtain the historical shielding table corresponding to the historical maintenance order; A corresponding shielding table is generated according to the historical shielding table.

4. The shielding method according to claim 3, characterized in that: Acquiring the working state of the maintenance equipment, and shielding or unshielding the shielding signal in the shielding table according to the working state, including: According to the maintenance order, the maintenance work information of the maintenance equipment is associated to monitor the working status of the maintenance equipment; When the maintenance equipment is in the start-up state, the shielding table is synchronized to the power grid operation control system to suppress the shielding signal in the shielding table or mark the shielding signal; when the maintenance equipment is in the completion state, the power grid operation control system is notified to lift the shielding of the shielding signal.

5. The shielding method according to claim 4, characterized in that: Shielding or unshielding the shielding signal in the shielding table according to the working state, further comprising: The shielding time of the shielding signal is determined according to the maintenance time of the maintenance equipment.

6. The shielding method according to claim 1, characterized in that: The method further comprises: If dispatching and issuing orders are required, the dispatching and issuing orders system is used to obtain the commissioning and decommissioning operation tasks associated with the maintenance order; The shielding signal in the shielding table is shielded or unshielded according to the completion status of the insertion and withdrawal operation task.

7. The shielding method according to claim 6, characterized in that: The method further comprises: Determine whether dispatching and issuing commands are required according to the type of the maintenance equipment; If the maintenance equipment is a primary equipment, a protection device or a safety device, it is determined that scheduling and command operations are required.

8. A signal shielding system for power grid maintenance, characterized in that: It comprises a power grid operation management system, which is used to implement the steps of the shielding method described in any one of claims 1 to 7.

9. A storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the shielding method according to any one of claims 1 to 7 are implemented.

10. An electronic device, comprising at least a memory and a processor, wherein a computer program is stored in the memory, wherein: The processor implements the steps of the shielding method according to any one of claims 1 to 7 when executing the computer program on the memory.

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