A secondary intelligent anti-intrusion control device for a substation

Abstract

The present invention discloses a secondary intelligent anti-defense control device for a substation, which includes an information acquisition module, a maintenance interval anti-defense surface generation module, a maintenance interval five-prevention verification module, a computer key communication module, an anti-defense tool and base installation module. The device isolates the equipment of the substation by using the empty lock, operation handle lock, protection pressure plate lock and padlock provided by the anti-defense tool and base installation module, effectively eliminating the possibility of misoperation accidents of on-site staff. The correct maintenance tasks are generated through the information acquisition module and the maintenance interval anti-defense surface generation module. The accuracy of the maintenance tasks is further ensured through the maintenance interval five-prevention verification module. The opening and closing of the lock are realized through the computer key communication module, transforming the maintenance work from the original human control management mode relying on systems and people's active control into a technical control management mode supervised and restricted by a third-party device, effectively improving work efficiency and ensuring work quality.

Description

Technical Field

[0001] The present invention relates to the technical field of substation equipment maintenance, and in particular to a secondary intelligent defense control device for substations. Background Art

[0002] The maintenance management of substation equipment is the basic and core work of power grid enterprises. In recent years, more and more emphasis has been placed on clarifying the safety control responsibilities in the power grid, requiring operation and maintenance personnel to "control the boundaries of operating equipment and the safety measures of maintenance equipment" according to on-site operations, and strictly controlling various unsafe behaviors and unsafe factors.

[0003] In recent years, due to the rapid economic development and technological breakthroughs, power equipment has been updated and iterated. The development of new technologies has also increased the unsafe factors of power equipment. Especially in the maintenance link, personal accidents caused by misjudgment of breaking through the maintenance work surface or misoperation of secondary equipment show an obvious high incidence.

[0004] Nowadays, Zhongwei area is vigorously developing and constructing cloud bases, industrial parks, grid connection of new energy power stations, realizing reliable power supply for users with multiple power sources, and improving the power supply coverage area of the power grid. In the past 5 years, 15 new substations have been built, and at the same time, multiple 330 kV substations have been newly taken over. The number of equipment such as transformers, indoor enclosed switch cabinets, outdoor open capacitors, and instrument transformers in the substations has also increased significantly, resulting in an increasing annual maintenance workload for the equipment.

[0005] Currently, in the defense link, there is still a lack of effective technical means to cooperate with management and organizational measures to prevent safety risks caused by human factors. The current defense work mainly relies on tools such as red cloth curtains, magnetic warning tapes, and operating equipment identification plates for defense. The existing defense tools have fixed sizes, cannot be targeted for defense according to the size of the equipment, and are easy to fall off. At the same time, in the existing defense process, it is usually necessary to clarify the defense scope according to the information on the work ticket, select a defense tool with a suitable size, conduct defense within the work scope, and re-arrange when the defense measures fall off. These links all waste a lot of time, resulting in an increase in the defense work time and low efficiency.

[0006] With the highly developed intelligent technology, more and more work has introduced intelligent control. Compared with manual control, it has high control accuracy and fast calculation speed, and can be effectively applied to daily life and work. In order to solve the problems encountered in the current substation equipment maintenance management work, it is desired to apply intelligent control to the maintenance management work of substation equipment, improve the maintenance efficiency, ensure the accuracy of maintenance, and guarantee the reliable and stable operation of the power grid. Summary of the Invention

[0007] To overcome the above problems, the object of the present invention is to provide a secondary intelligent anti-intrusion control device for a substation. The device isolates the equipment in the substation by using the empty unlocking tools, operating handle locks, protection pressure plate locks and padlocks provided by the anti-intrusion tools and base installation module. This isolation method is reliable and convenient, effectively eliminating the possibility of misoperation accidents of on-site staff. The correct maintenance tasks are generated through the information acquisition module and the maintenance interval anti-intrusion surface generation module. The accuracy of the maintenance tasks is further ensured through the maintenance interval five-prevention verification module. The opening and closing of the locks are realized through the computer key communication module. The maintenance work is transformed from the original human control management mode relying on systems and people's active control to a technical control management mode supervised and restricted by a third-party device, effectively improving work efficiency and ensuring work quality.

[0008] The technical solution adopted by the present invention is as follows:

[0009] A secondary intelligent anti-intrusion control device for a substation, including an information acquisition module, a maintenance interval anti-intrusion surface generation module, a maintenance interval five-prevention verification module, a computer key communication module, and an anti-intrusion tools and base installation module.

[0010] The information acquisition module uses five-prevention information acquisition to establish the connection between the anti-intrusion computer and the on-site primary equipment and secondary equipment.

[0011] The maintenance interval anti-intrusion surface generation module generates a maintenance anti-intrusion task according to the information collected by the information acquisition module by using the disconnector condition determination.

[0012] The maintenance interval five-prevention verification module is completed by using the topological anti-error verification method, and is determined based on the connection relationship of the wiring diagram of the primary equipment to determine whether the maintenance anti-intrusion task is correct and give the determination result.

[0013] The computer key communication module uses the serial communication method to download the maintenance anti-intrusion task with a correct determination result to the computer key and use the computer key to open the corresponding lock.

[0014] The anti-intrusion tools and base installation module adopts a design with a base padlock.

[0015] As a further description of the present invention, the specific process of the disconnector condition determination of the maintenance interval anti-intrusion surface generation module is as follows:

[0016] S01: Start the generation command;

[0017] S02: Collect the equipment status;

[0018] S03: Five-prevention logic verification;

[0019] S04: Start the generation of the maintenance interval;

[0020] S05: Determine whether there is a circuit breaker in the topological connection between the device and other bays.

[0021] If there is a circuit breaker, determine whether the circuit breaker and the disconnecting switch are in the open position.

[0022] If there is no circuit breaker, determine whether the disconnecting switch is in the open position.

[0023] S06: Generate a maintenance defense task work order based on the judgment result of step S05.

[0024] If all the conditions in step S05 are met, color the maintenance bay topology and complete the generation of the maintenance defense task work order.

[0025] If the conditions in step S05 are not met, the generation of the maintenance defense task work order fails.

[0026] As a further description of the present invention, the inspection steps of the five-prevention verification module for the maintenance bay are specifically as follows:

[0027] The first step: Define the device type in the program code.

[0028] The second step: Dynamically judge the current state of the device by directly calling the five-prevention logic through the connection relationship.

[0029] The third step: Determine whether the generated result of the maintenance bay is correct and give a judgment result.

[0030] As a further description of the present invention, the defense tool and base installation module adopts a detachable defense base, including an air switch lock, an operating handle lock, a protection pressure plate lock, and a padlock. The air switch lock is installed at the switch position of the air switch, the operating handle lock is installed on the operating handle, the protection pressure plate is installed on the secondary equipment cabinet, and the padlock is installed on the corresponding lock holes of the air switch lock, the operating handle lock, and the protection pressure plate lock.

[0031] As a further description of the present invention, the air switch lock includes an elastic lock pin, a lock pin guiding end cover, an installation sleeve, a spring pressing end, a compression release spring, a lock core installation structure, and a lock core. The elastic lock pin is connected to the left side of the lock pin guiding end cover, the installation sleeve is connected to the right side of the lock pin guiding end cover, the spring pressing end is installed at the right end of the installation sleeve, the compression release spring is located inside the installation sleeve, one end is connected inside the installation sleeve, and the other end is installed on the spring pressing end. The lock core installation structure is installed on the right side of the spring pressing end, and the lock core is installed inside the lock core installation structure and extends outward.

[0032] As a further description of the present invention, a lock hole activity groove is provided on the side of the lock core installation structure, and a lock core buckle is provided on the part of the lock core located within the lock core installation structure, and the lock core buckle is snap-fitted within the lock hole activity groove.

[0033] As a further description of the present invention, the operating handle lock includes a hinge, a left anti-tampering cover, a right anti-tampering cover, and a lock hole. The hinge is fixedly installed at the middle position above the operating handle. The left anti-tampering cover is rotatably connected to the left side of the hinge, and the right anti-tampering cover is rotatably connected to the right side of the hinge. The left anti-tampering cover and the right anti-tampering cover have the same structure, and their structures are adapted to the structure of the operating handle. A lock hole is provided at one end of the left anti-tampering cover and the right anti-tampering cover away from the hinge.

[0034] As a further description of the present invention, the protective pressing plate lock includes a left fixing plate, a right fixing plate, a spliced fixed vertical rod, a padlock installation rod, and a closed cover. The left fixing plate is fixedly installed on the left side of the switch cabinet using screws. The right fixing plate is fixedly installed on the right side of the switch cabinet using screws. The left fixing plate and the right fixing plate have the same structure and are of a cylindrical design. A fixing hole is provided at its upper end, and the screw passes through the fixing hole and is fixedly installed on the switch cabinet. A connection hole is provided on the side of its lower end. The spliced fixed vertical rod is fixed using a screw passing through the connection hole on the left fixing plate. The padlock installation rod is fixed using a screw passing through the connection hole on the right fixing plate. There are multiple closed covers, and the closed covers are rotatably connected to the spliced fixed vertical rod. A first padlock hole is provided at the right end of the closed cover.

[0035] As a further description of the present invention, the spliced fixed vertical rod is of a cylindrical structure, and its diameter size is adapted to the diameter of the lower end of the left fixing plate. It includes multiple vertical rods of the same length. The upper end and the lower end of the vertical rod have the same diameter, and its inner diameter is the same as the outer diameter of the lower end of the left fixing plate. The closed cover is rotatably connected to the middle of the vertical rod, and the outer diameter at the middle position of the vertical rod is the same as the outer diameter of the lower end of the left fixing plate.

[0036] The padlock installation rod is of a cylindrical structure, and its diameter size is adapted to the diameter of the lower end of the right fixing plate. It includes multiple installation rods of the same length. The inner diameter of the installation rod is the same as the outer diameter of the lower end of the right fixing plate. A second padlock hole is provided in the middle of the installation rod. The padlock passes through the first padlock hole on the closed cover and is locked with the second padlock hole on the installation rod.

[0037] As a further description of the present invention, the computer key communication module receives the correct maintenance anti-tampering task through the communication adapter, and then opens the corresponding padlock through the communication adapter.

[0038] Advantages of the present invention:

[0039] A secondary intelligent anti-defense control device for a substation according to the present invention includes an information collection module, a maintenance interval anti-defense surface generation module, a maintenance interval five-prevention verification module, a computer key communication module, and an anti-defense tool and base installation module. The device isolates the equipment of the substation by using the air lock, operation handle lock, protection pressure plate lock, and padlock provided by the anti-defense tool and base installation module. This isolation method is reliable and convenient, effectively eliminating the possibility of misoperation accidents of on-site staff. The correct maintenance tasks are generated through the information collection module and the maintenance interval anti-defense surface generation module. The accuracy of the maintenance tasks is further ensured through the maintenance interval five-prevention verification module. The opening and closing of the locks are realized through the computer key communication module, transforming the maintenance work from the original human control management mode relying on systems and people's active control to a technical control management mode supervised and restricted by a third-party device, effectively improving work efficiency and ensuring work quality.

[0040] A secondary intelligent anti-defense control device for a substation according to the present invention is upgraded and expanded based on the existing five-prevention system principle of the substation. An overhaul interval verification module is added, and an overhaul anti-defense control adapter, an overhaul anti-defense authorization key, and a locking lock and its accessories are added. Parallel anti-defense of secondary equipment such as pressure plates and operation handles can be achieved, and the anti-defense work can be completed quickly. Upgrading and transformation are carried out on the original relatively mature system. The new device has a high anti-defense integrity rate, fast speed, smooth operation, and can efficiently complete tasks.

[0041] A secondary intelligent anti-defense control device for a substation according to the present invention transforms the maintenance work from the original human control management mode relying on systems and people's active control to a technical control management mode supervised and restricted by a third-party device, solving the management problems such as the mandatory locking of safety measures for maintenance equipment during the maintenance process from all aspects and multiple dimensions. By adding various maintenance modules, sub-modules, adapters, authorization keys, and locks and their accessories, the anti-defense is physically forced to be managed by the device, realizing intelligent management.

[0042] A secondary intelligent anti-defense control device for a substation according to the present invention is upgraded and transformed on the relatively mature existing five-prevention system, with extremely high reliability. The physical structure used is simple, it can operate independently, does not depend on external interfaces, the data source for on-site equipment collection is stable and reliable, and the requirements for the operating system and operating environment are low. It is a very stable and reliable device. Brief Description of the Drawings

[0043] Figure 1 It is a schematic diagram of the overall structure of a secondary intelligent anti-defense control device for a substation proposed by the present invention;

[0044] Figure 2 It is a specific flowchart for determining the conditions of the disconnector of a secondary intelligent anti-defense control device for a substation proposed by the present invention;

[0045] Figure 3 The cross-sectional view of the air lock of a secondary intelligent anti-intrusion control device for a substation proposed by the present invention;

[0046] Figure 4 The three-dimensional structure diagram of the air lock of a secondary intelligent anti-intrusion control device for a substation proposed by the present invention;

[0047] Figure 5 The installation schematic diagram of the operating handle lock of a secondary intelligent anti-intrusion control device for a substation proposed by the present invention;

[0048] Figure 6 The installation schematic diagram of the protection pressure plate lock of a secondary intelligent anti-intrusion control device for a substation proposed by the present invention.

[0049] Explanation of reference numerals

[0050] 11 - Elastic locking pin, 12 - Locking pin guiding end cover, 13 - Installation sleeve, 14 - Spring pressing end, 15 - Pressing and releasing spring, 16 - Lock core installation structure, 161 - Lock hole movable groove, 17 - Lock core, 171 - Lock core buckle, 18 - Air switch,

[0051] 21 - Hinge, 22 - Left anti-intrusion cover, 23 - Right anti-intrusion cover, 24 - Lock hole, 25 - Operating handle,

[0052] 31 - Left fixing plate, 311 - Fixing hole, 32 - Right fixing plate, 33 - Spliced fixing vertical rod, 34 - Padlock installation rod, 35 - Enclosure. Detailed implementation manners

[0053] The following describes the detailed implementation manners of the present invention in conjunction with the drawings and embodiments:

[0054] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present invention. Any modification of the structure, change of the ratio relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0055] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present invention can implement.

[0056] As Figures 1 to 6 shown, it shows the detailed implementation manners of the present invention:

[0057] Embodiment 1

[0058] A secondary intelligent anti-intrusion control device for a substation, comprising an information acquisition module, a maintenance interval anti-intrusion surface generation module, a maintenance interval five-prevention verification module, a computer key communication module, and an anti-intrusion tool and base installation module.

[0059] The information acquisition module uses five-prevention information acquisition to establish the connection between the anti-intrusion computer and the on-site primary equipment and secondary equipment.

[0060] The maintenance interval anti-intrusion surface generation module generates a maintenance anti-intrusion task according to the information collected by the information acquisition module, using the disconnector condition determination.

[0061] The maintenance interval five-prevention verification module is completed by using the topology anti-error verification method, and is determined based on the connection relationship of the wiring diagram of the primary equipment to determine whether the maintenance anti-intrusion task is correct and gives a determination result.

[0062] The computer key communication module uses the serial communication method to download the maintenance anti-intrusion task with a correct determination result to the computer key, and uses the computer key to open the corresponding lock.

[0063] The anti-intrusion tool and base installation module adopts a design with a base padlock.

[0064] In this embodiment, as Figure 1 shown, the device isolates the substation equipment by using the openable lock, operation handle lock, protection pressure plate lock and padlock provided by the anti-intrusion tool and base installation module. This isolation method is reliable and convenient, effectively eliminating the possibility of misoperation accidents of on-site staff. By using the information acquisition module and the maintenance interval anti-intrusion surface generation module, the correct maintenance task is generated. The accuracy of the maintenance task is further ensured by the maintenance interval five-prevention verification module. The opening and closing of the lock are realized through the computer key communication module. The maintenance work is transformed from the original human control management mode relying on systems and people's initiative to a technical control management mode supervised and restricted by a third-party device, effectively improving work efficiency and ensuring work quality.

[0065] Specifically, the specific process of the disconnector condition determination of the maintenance interval anti-intrusion surface generation module is as follows:

[0066] S01: Start the generation command;

[0067] S02: Collect the equipment status;

[0068] S03: Five-prevention logic verification;

[0069] S04: Start the generation of the maintenance interval;

[0070] S05: Determine whether there is a circuit breaker in the topological connection between the device and other bays.

[0071] If there is a circuit breaker, determine whether the circuit breaker and the disconnecting switch are in the open position.

[0072] If there is no circuit breaker, determine whether the disconnecting switch is in the open position.

[0073] S06: Generate a maintenance prevention task work order based on the judgment result of step S05.

[0074] If all the conditions in step S05 are met, color the topology of the maintenance bay to complete the generation of the maintenance prevention task work order.

[0075] If the conditions in step S05 are not met, the generation of the maintenance prevention task work order fails.

[0076] In this embodiment, as Figure 2 shown, the condition determination of the disconnecting switch is used as the basis for generating the maintenance prevention task work order for the maintenance bay. The condition determination of the disconnecting switch determines the generation of the maintenance bay range based on the fact that the disconnecting switches on both sides of the topological connection of the maintenance equipment are in the open position. The maintenance equipment includes circuit breakers, transformers, capacitors, voltage transformers, etc.

[0077] In actual applications, 10 typical equipment bays including double-winding transformers, three-winding transformers, open-type circuit breakers, gas-insulated switchgear circuit breakers, busbars, open-type voltage transformers, gas-insulated switchgear voltage transformers, 10kV handcart switches, 10kV voltage transformer handcarts, and capacitor banks are selected. For each type of equipment, 15 substations are selected for testing, with a total of 200 tests to test the success rate of generating the maintenance bay, and the specific situation is shown in Table 1 below.

[0078] Table 1 Success rate of generating the maintenance bay and determination time

[0079]

[0080]

[0081] From the results in Table 1 above, it is found that when using the condition determination of the disconnecting switch, the average determination time is 1.54 s, the determination time is short, and the efficiency is high. The success rate of generating the maintenance prevention task work order is 99.5%, the success rate is high, which improves the quality of substation maintenance work and ensures work efficiency.

[0082] Specifically, the inspection steps of the five-prevention verification module for the maintenance bay are as follows:

[0083] The first step: Define the device type in the program code.

[0084] Step 2: Dynamically judge the current state of the device by directly invoking the five-prevention logic through the connection relationship.

[0085] Step 3: Judge whether the generated result of the maintenance interval is correct and give the judgment result.

[0086] In this embodiment, the five-prevention verification module for the maintenance interval is completed by using the topology anti-error verification method. It is judged based on the connection relationship of the wiring diagram of the primary equipment to determine whether the maintenance prevention task is correct and give the judgment result. Through the function of this module, the correctness of the maintenance prevention task work order is guaranteed, thereby further ensuring the maintenance quality. In the actual application process, this judgment rule is directly added to the code program to make the use of this device intelligent.

[0087] Specifically, the anti-prevention tool and base installation module adopts a detachable anti-prevention base, including an air switch lock, an operation handle lock, a protection pressure plate lock, and a padlock. The air switch lock is installed at the switch position of the air switch 18, the operation handle lock is installed on the operation handle, the protection pressure plate is installed on the secondary equipment cabinet, and the padlock is installed on the corresponding lock holes of the air switch lock, the operation handle lock, and the protection pressure plate lock.

[0088] In this embodiment, the anti-prevention tool and base installation module adopts a detachable anti-prevention base. The anti-prevention base can be installed and disassembled as needed, and uses the nuts in the cabinet to provide mechanical support. The anti-prevention base can be disassembled into single units or connected into rows according to the maintenance work content, and can prevent single or row of pressure plates, which is convenient for targeted prevention and reuse in the next maintenance work.

[0089] During actual use, different anti-prevention bases are used for different equipment in the substation. The air switch lock is installed at the switch position of the air switch 18, so that the air switch 18 cannot be opened randomly after installing the air switch lock and adding a padlock, ensuring safety during the maintenance process and preventing safety accidents caused by misoperation. The operation handle lock is installed on the operation handle 25, so that 25 cannot be opened after installing the operation handle lock and adding a padlock, ensuring that the operation handle 25 is not accidentally touched. The protection pressure plate lock is installed on the secondary equipment cabinet, so that the switch on the cabinet will not change its state randomly after installing the protection pressure plate lock and adding a padlock, avoiding accidental touching of the switch on the cabinet and ensuring safety during the maintenance process.

[0090] Specifically, the computer key communication module receives the correct maintenance prevention task through the communication adapter, and then opens the corresponding padlock through the communication adapter.

[0091] In this embodiment, the correct maintenance and deployment tasks are mainly received through the communication adapter. After the communication adapter receives the correct maintenance task, the corresponding lock on the communication adapter is connected and locked for deployment. At the same time, the lock code will be transmitted back to the topology connection relationship diagram and can be displayed at the corresponding position. The deployment work is completed and the maintenance begins. When the maintenance work is completed, the corresponding disarming work order is generated according to the maintenance task work order, and the communication adapter is used again to unlock each lock. Finally, the lock code is transmitted back and the disarming work is completed after verification. During the use of the device, the communication adapter establishes a connection with the padlock as an electronic key to realize the opening and closing of the padlock.

[0092] Embodiment 2

[0093] Specifically, the air-open lock includes an elastic lock pin 11, a lock pin guide end cover 12, a mounting sleeve 13, a spring clamping end 14, a clamping release spring 15, a lock core mounting structure 16, and a lock core 17. The elastic lock pin 11 is connected to the left side of the lock pin guide end cover 12, the mounting sleeve 13 is connected to the right side of the lock pin guide end cover 12, the spring clamping end 14 is mounted on the right end of the mounting sleeve 13, the clamping release spring 15 is located inside the mounting sleeve 13, one end of which is connected to the mounting sleeve 13, and the other end is mounted on the spring clamping end 14, the lock core mounting structure 16 is mounted on the right side of the spring clamping end 14, and the lock core 17 is installed in the lock core mounting structure 16, located inside the lock core mounting structure 16 and extending outward.

[0094] Specifically, a lock hole movable groove 161 is opened on the side of the lock core installation structure 16 , and a lock core buckle 171 is provided on the portion of the lock core 17 located inside the lock core installation structure 16 . The lock core buckle 171 is snapped into the lock hole movable groove 161 .

[0095] In this embodiment, the actual use structure of the air-opening lock is described, such as Figure 3 , Figure 4 As shown, it is a schematic diagram of the specific structure of the air switch lock. In actual use, the elastic lock pin 11 is installed at the switch toggle position of the air switch 18, which limits the switch position of the air switch 18 and avoids safety problems caused by accidental contact during maintenance.

[0096] In this embodiment, the lock core 17 can move within the lock core installation structure 16. During its movement, a force is exerted on the spring pressing end 14. Under the action of this force, the compression release spring 15 within the installation sleeve 13 is compressed and elastically deformed, causing the elastic lock pin 11 to open. The compression release spring 15 enables the elastic lock pin 11 to clamp at the switch position of the air switch 18 under the action of elastic force. At the same time, the presence of the lock pin guiding end cover 12 prevents the switch of the air switch 18 from changing its state, playing a limiting role and avoiding accidental touch. After the maintenance is completed, operating the lock core 17 causes the compression release spring 15 to be subjected to a force again, and then the air switch lock is removed.

[0097] Embodiment III

[0098] Specifically, the operating handle lock includes a hinge 21, a left anti-tampering cover 22, a right anti-tampering cover 23, and a lock hole 24. The hinge 21 is fixedly installed at the middle position above the operating handle 25. The left anti-tampering cover 22 is rotatably connected to the left side of the hinge 21. The right anti-tampering cover 23 is rotatably connected to the right side of the hinge 21. The left anti-tampering cover 22 and the right anti-tampering cover 23 have the same structure, and their structures are adapted to the structure of the operating handle 25. The ends of the left anti-tampering cover 22 and the right anti-tampering cover 23 away from the hinge 21 are provided with lock holes 24.

[0099] In this embodiment, as Figure 5 shown, the position of the operating handle 25 is restricted and cannot move through the rotational action of the left anti-tampering cover 22 and the right anti-tampering cover 23. Lock holes 24 are provided below the left anti-tampering cover 22 and the right anti-tampering cover 23 to facilitate the installation of a padlock, preventing the operating handle 25 from moving during maintenance and anti-tampering work and ensuring maintenance safety.

[0100] Embodiment IV

[0101] Specifically, the protection pressure plate lock includes a left fixing plate 31, a right fixing plate 32, a spliced fixed vertical rod 33, a padlock installation rod 34, and a closed cover 35. The left fixing plate 31 is fixedly installed on the left side of the switch cabinet using screws. The right fixing plate 32 is fixedly installed on the right side of the switch cabinet using screws. The left fixing plate 31 and the right fixing plate 32 have the same structure and are designed as cylinders. A fixing hole 311 is provided at the upper end thereof, and the screws pass through the fixing hole 311 and are fixedly installed on the switch cabinet. A connection hole is provided on the side of the lower end. The spliced fixed vertical rod 33 is fixed using screws passing through the connection hole on the left fixing plate 31. The padlock installation rod 34 is fixed using screws passing through the connection hole on the right fixing plate 32. There are multiple closed covers 35, and the closed covers 35 are rotatably connected to the spliced fixed vertical rod 33. A first padlock hole is provided at the right end of the closed cover 35.

[0102] In this embodiment, as Figure 6As shown, there are multiple switches in the secondary equipment cubicle. During the maintenance process, when operating a switch in a certain area, it is very likely to touch the switches in the adjacent area, resulting in safety accidents and threatening the stable and effective operation of the power grid. A protection pressure plate lock is set to block the corresponding position and lock it with a padlock.

[0103] In this embodiment, the left side of the enclosure 35 of the protection pressure plate lock is installed on the spliced fixed vertical rod 33, and the right side is locked with a padlock. The protection pressure plate lock adopts the design of the spliced fixed vertical rod 33 and is selectively used according to the area to be blocked during use, which can be applicable to different maintenance scenarios.

[0104] Specifically, the spliced fixed vertical rod 33 is a cylindrical structure, the diameter of which is adapted to the diameter of the lower end of the left fixing plate 31, and includes a plurality of vertical rods with the same length. The upper end and the lower end of the vertical rod have the same diameter, the inner diameter thereof is the same as the outer diameter of the lower end of the left fixing plate 31, the enclosure 35 is rotatably connected in the middle of the vertical rod, and the outer diameter at the middle position of the vertical rod is the same as the outer diameter of the lower end of the left fixing plate 31.

[0105] The padlock mounting rod 34 is a cylindrical structure, the diameter of which is adapted to the diameter of the lower end of the right fixing plate 32, and includes a plurality of mounting rods with the same length. The inner diameter of the mounting rod is the same as the outer diameter of the lower end of the right fixing plate 32. A second padlock hole is opened in the middle of the mounting rod, and the padlock passes through the first padlock hole on the enclosure 35 and is locked with the second padlock hole on the mounting rod.

[0106] In this embodiment, the upper end of the spliced fixed vertical rod 22 is connected below the left fixing plate 31 and can be fixed with screws. The length of the spliced fixed vertical rod 33 is selected and adjusted according to the number of protection pressure plate locks actually installed on the cubicle, and the application range is wide.

[0107] Generally speaking, for this secondary intelligent anti-intrusion control device in the substation, this device is upgraded and expanded based on the existing five-prevention system principle of the substation, adding an overhaul interval verification module, adding an overhaul anti-intrusion control adapter, an overhaul anti-intrusion authorization key, and a locking lock and accessories. It can realize the parallel anti-intrusion of secondary equipment such as pressure plates and operating handles, quickly complete the anti-intrusion work, upgrade and transform on the original relatively mature system. The new device has a high anti-intrusion integrity rate, fast speed, smooth operation, and can efficiently complete tasks;

[0108] The overhaul work is transformed from the human control management mode that originally relied on systems and people's active control to the technical control management mode supervised and restricted by a third-party device, so as to solve the management problems such as the mandatory locking of safety measures for overhaul equipment during the overhaul process from all aspects and multiple dimensions. By adding various overhaul modules, sub-modules, adapters, authorized keys, as well as locks and accessories, the physical mandatory management of the defense deployment is realized through the device, achieving intelligent management. Since this device is upgraded and transformed on the existing relatively mature five-prevention system, it has extremely high reliability, the physical structure used is simple, it can operate independently, does not rely on external interfaces, the data source for on-site equipment acquisition is stable and reliable, and it has low requirements for the operating system and operating environment, so it is a very stable and reliable device.

[0109] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

[0110] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A secondary intelligent anti-intrusion control device for a substation, characterized in that, It includes an information collection module, a maintenance interval defense surface generation module, a maintenance interval five-prevention verification module, a computer key communication module, and a defense equipment and base installation module. The information collection module uses five-prevention information collection to establish the connection between the defense computer and the primary equipment and secondary equipment on site. The maintenance interval defense surface generation module generates a maintenance defense task according to the information collected by the information collection module. The specific process of the disconnector condition determination is as follows: S01: Start the generation command. S02: Collect the device status. S03: Perform five-prevention logic verification. S04: Start the generation of the maintenance interval. S05: Judge whether there is a circuit breaker in the topological connection between the device and other intervals. If there is a circuit breaker, judge whether the circuit breaker and the disconnector are in the open position. If there is no circuit breaker, judge whether the disconnector is in the open position. S06: Generate a maintenance defense task work order according to the judgment result of step S05. If all the conditions in step S05 are met, color the maintenance interval topology to complete the generation of the maintenance defense task work order. If the conditions in step S05 are not met, the generation of the maintenance defense task work order fails. The maintenance interval five-prevention verification module is completed by using the topology anti-error verification method. Based on the connection relationship of the wiring diagram of the primary equipment, it determines whether the maintenance defense task is correct and gives a judgment result. The computer key communication module uses the serial communication method to download the maintenance defense task with a correct judgment result to the computer key and uses the computer key to open the corresponding lock. The defense equipment and base installation module adopts a design with a base-mounted padlock.

2. The secondary intelligent anti-intrusion control device for a substation according to claim 1, characterized in that , The inspection steps of the maintenance interval five-prevention verification module are specifically as follows: The first step: Define the device type in the program code. The second step: Dynamically judge the current state of the device by directly calling the five-prevention logic through the connection relationship. The third step: Judge whether the generation result of the maintenance interval is correct and give a judgment result.

3. The secondary intelligent anti-intrusion control device for a substation according to claim 1, characterized in that, The defense equipment and base installation module adopts a detachable defense base, including an air switch lock, an operating handle lock, a protection pressure plate lock, and a padlock. The air switch lock is installed at the switch position of the air switch (18), the operating handle lock is installed on the operating handle, the protection pressure plate is installed on the secondary equipment cabinet, and the padlock is installed on the corresponding lock holes of the air switch lock, the operating handle lock, and the protection pressure plate lock.

4. The secondary intelligent prevention and control device for a substation according to claim 3, wherein , The empty lock includes an elastic lock pin (11), a lock pin guide end cap (12), an installation sleeve (13), a spring pressing end (14), a compression release spring (15), a lock core installation structure (16), and a lock core (17). The elastic lock pin (11) is connected to the left side of the lock pin guide end cap (12). The installation sleeve (13) is connected to the right side of the lock pin guide end cap (12). The spring pressing end (14) is installed at the right end of the installation sleeve (13). The compression release spring (15) is located inside the installation sleeve (13), with one end connected inside the installation sleeve (13) and the other end installed at the spring pressing end (14). The lock core installation structure (16) is installed on the right side of the spring pressing end (14). The lock core (17) is installed inside the lock core installation structure (16) and extends outward inside the lock core installation structure (16).

5. The secondary intelligent anti-intrusion control device for a substation according to claim 4, characterized in that , A lock hole activity slot (161) is provided on the side of the lock core installation structure (16). A lock core buckle (171) is provided on the part of the lock core (17) located inside the lock core installation structure (16). The lock core buckle (171) is snapped into the lock hole activity slot (161).

6. The secondary intelligent anti-intrusion control device for a substation according to claim 3, characterized in that , The operating handle lock includes a hinge (21), a left anti-tampering cover (22), a right anti-tampering cover (23), and a lock hole (24). The hinge (21) is fixedly installed at the middle position above the operating handle (25). The left anti-tampering cover (22) is rotatably connected to the left side of the hinge (21). The right anti-tampering cover (23) is rotatably connected to the right side of the hinge (21). The left anti-tampering cover (22) and the right anti-tampering cover (23) have the same structure, and their structure is adapted to the structure of the operating handle (25). A lock hole (24) is provided at the end of the left anti-tampering cover (22) and the right anti-tampering cover (23) away from the hinge (21).

7. The secondary intelligent anti-intrusion control device for a substation according to claim 3, characterized in that , The protection pressure plate lock includes a left fixed plate (31), a right fixed plate (32), a spliced fixed vertical rod (33), a padlock installation rod (34), and a closed cover (35). The left fixed plate (31) is fixedly installed on the left side of the cabinet using screws. The right fixed plate (32) is fixedly installed on the right side of the cabinet using screws. The left fixed plate (31) and the right fixed plate (32) have the same structure and are designed as a cylinder. A fixing hole (311) is provided at its upper end. The screw passes through the fixing hole (311) and is fixedly installed on the cabinet. A connection hole is provided on the side of its lower end. The spliced fixed vertical rod (33) is fixed using a screw passing through the connection hole on the left fixed plate (31). The padlock installation rod (34) is fixed using a screw passing through the connection hole on the right fixed plate (32). There are multiple closed covers (35), and the closed covers (35) are rotatably connected to the spliced fixed vertical rod (33). A first padlock hole is provided at the right end of the closed cover (35).

8. The secondary intelligent anti-intrusion control device for a substation according to claim 7, characterized in that , The spliced fixed vertical rod (33) is of a cylindrical structure, and its diameter is adapted to the diameter of the lower end of the left fixing plate (31). It includes a plurality of vertical rods of the same length. The upper end and the lower end of the vertical rod have the same diameter, and its inner diameter is the same as the outer diameter of the lower end of the left fixing plate (31). The middle of the vertical rod is rotatably connected to the closed cover (35), and the outer diameter at the middle position of the vertical rod is the same as the outer diameter of the lower end of the left fixing plate (31). , The padlock mounting rod (34) is of a cylindrical structure, and its diameter is adapted to the diameter of the lower end of the right fixing plate (32). It includes a plurality of mounting rods of the same length. The inner diameter of the mounting rod is the same as the outer diameter of the lower end of the right fixing plate (32). A second padlock hole is provided in the middle of the mounting rod. The padlock passes through the first padlock hole on the closed cover (35) and is locked with the second padlock hole on the mounting rod.

9. The secondary intelligent anti-intrusion control device for a substation according to claim 1, wherein , The computer key communication module receives the correct maintenance and defense task through the communication adapter, and then opens the corresponding padlock through the communication adapter.

Images