Intelligent ground wire management system for transformer substation

Abstract

The invention relates to the technical field of power system automation, in particular to an intelligent ground wire management system for a transformer substation, which comprises a plurality of ground wire lock heads, the ground wire end of each ground wire lock head is connected with a ground wire, and the equipment wiring end of each ground wire lock head is connected with an intelligent locking pile and a state ground wire lock; the ground wire management controller is installed on a transformer substation ground wire cabinet and connected with the intelligent locking piles; the regional anti-misoperation system master station server is connected with the ground wire management controller; the five-prevention work station server is connected with the regional anti-error system master station through a physical isolation device and is in wired connection with the ground wire management controller; and the computer key is wirelessly connected with the five-prevention workstation server and the plurality of ground wire locks with states. According to the invention, secure transmission of master station data and control commands can be realized; the device can achieve the function of preventing the ground wire from missing in operation, and effectively avoids the misoperation accidents of hanging the ground wire in an electrified manner and closing the circuit breaker with the ground wire.

Description

Technical Field

[0001] The present invention relates to the technical field of power system automation, and in particular to an intelligent grounding wire management system for a substation. Background Art

[0002] The core business of substation operation is mainly gate operation, accident handling and equipment inspection; for switching operation, with the continuous development of the safety situation of substations, the traditional "five preventions" have achieved certain results in preventing "incorrect opening and closing of circuit breakers", "closing and pulling disconnectors under load", "hanging ground wires (grounding switches) under power", "closing circuit breakers with ground wires (grounding switches)", and "accidentally entering live intervals".

[0003] Grounding wires are commonly used in power systems for inspection and maintenance. They are characterized by large number, simple operation, high demand for use, dispersed operations, and wide distribution. Based on these characteristics, the existing management methods for grounding wires mostly use manual connection and removal of grounding wires, and also require manual records of the use of grounding wires. After the grounding wires are released from the warehouse, the information of the grounding wires can only be obtained through manual records. The information channel is single and the fault tolerance rate is low. It is easy for personnel to neglect registration or removal of grounding wires or fail to clearly hand over the location status of equipment, resulting in grounding faults during power transmission, causing misoperation accidents such as "hanging grounding wires with power on" and "closing circuit breakers with grounding wires on", thereby damaging power equipment and increasing the failure rate of power systems. Summary of the invention

[0004] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that due to personnel negligence, they fail to register or remove the grounding wire or fail to clearly hand over the location status of the equipment, resulting in grounding faults during the power transmission process, leading to erroneous operation accidents such as "hanging the grounding wire with power on" and "closing the circuit breaker with the grounding wire on", thereby damaging the power equipment.

[0005] In order to solve the above technical problems, the present invention provides a substation intelligent grounding wire management system, comprising:

[0006] Multiple grounding wire locks, the grounding wire end of each grounding wire lock is connected to the grounding wire, and the device terminal of each grounding wire lock is connected to an intelligent locking pile and a grounding wire lock with status;

[0007] Multiple intelligent locking posts, each intelligent locking post is used to detect the grounding wire port status of its corresponding grounding wire lock head;

[0008] The ground wire management controller is installed on the ground wire cabinet of the substation and connected to multiple intelligent locking piles; it is used to control the on and off of multiple intelligent locking piles and receive the ground wire port status of each ground wire lock head; it collects the inventory information and hanging information of all ground wires in the ground wire cabinet, updates the storage status of all ground wires in the ground wire cabinet in real time, and records the operation information and usage logs of all ground wires in the ground wire cabinet;

[0009] The regional error prevention system master station server is connected to the ground wire management controller; it is used to receive the inventory information and connection information of all ground wires in the ground wire cabinet, perform logical processing on the inventory information and connection information of all ground wires in the ground wire cabinet, and obtain all logical processing results;

[0010] The five-protection workstation server is placed in the safety zone I, connected to the regional error prevention system master station through a physical isolation device, and connected to the ground wire management controller through a network cable; it is used for the built-in power microcomputer error prevention management system software, receiving the ground wire port status of each ground wire lock, receiving the storage status, operation information, and usage log of all ground wires in the ground wire cabinet, receiving all logical processing results, and simulating invoicing according to the operation tasks issued by the dispatching center, generating operation tickets, and transmitting the control instructions corresponding to the operation tickets to the ground wire management controller;

[0011] The computer key is wirelessly connected to the five-defense workstation server and multiple status ground wire locks; it is used to read the status of the status ground wire lock, control the on and off of the status ground wire lock, determine the identity of the ground wire that needs to be hung or removed from the ground wire lock head corresponding to the status ground wire lock, receive the operation ticket generated by the five-defense workstation server, and transmit the ground wire status after the operation ticket is completed to the five-defense workstation server.

[0012] Preferably, the ground wire management controller and the five-defense workstation use a 10M / 100M Ethernet interface and are connected via a network cable; the ground wire management controller and multiple intelligent locking piles are connected using an RS485 bus.

[0013] Preferably, the physical isolation device is an intelligent ground wire hard isolation input / output device, which is used to achieve two-way transmission and safety isolation between the regional anti-error system master station and the five-protection workstation.

[0014] Preferably, the regional error prevention system master station server includes:

[0015] The graphic display module is used to display the inventory status and connection status of all grounding wires in the grounding cabinet in the form of grounding wire images according to the inventory information and connection information of all grounding wires in the grounding cabinet; if the inventory status of any grounding wire in the grounding cabinet is in inventory, a white light will be on in the grounding wire image; if the connection status of any grounding wire in the grounding cabinet is connected, a green light will be on in the grounding wire image;

[0016] The anti-error verification module is used to detect whether the storage status of each grounding wire in the grounding cabinet displayed in the graphic corresponds to its connection status; if the storage status of any grounding wire in the grounding cabinet displayed in the graphic corresponds to its connection status, the blue light in the current grounding wire image is on; if the storage status of each grounding wire in the grounding cabinet displayed in the graphic does not correspond to its connection status, the red light in the current grounding wire image is on;

[0017] The grounding wire abnormality alarm module is used to make the alarm corresponding to the current grounding wire emit an audible and visual alarm when the red light is on in any grounding wire image.

[0018] Preferably, the logic processing of the inventory information and the connection information of all the grounding wires in the grounding cabinet to obtain all the logic processing results includes:

[0019] The graphic display module in the regional error prevention system master station server is used to display the inventory status and connection status of all grounding wires in the grounding cabinet in the form of grounding wire images according to the inventory information and connection information of all grounding wires in the grounding cabinet.

[0020] The error prevention verification module in the regional error prevention system main station server is used to detect whether the storage status of each grounding wire in the grounding cabinet corresponds to its connection status; if the storage status of any grounding wire in the grounding cabinet corresponds to its connection status, the logical processing result of the current grounding wire is output; if the storage status of each grounding wire in the grounding cabinet does not correspond to its connection status, the logical processing result of the current grounding wire is output, and the grounding wire abnormality alarm module in the regional error prevention system main station server is used to issue an audible and visual alarm; all logical processing results are obtained in sequence.

[0021] Preferably, the power microcomputer error prevention management system software includes:

[0022] The 3D modeling module is used to build a simulation platform according to the requirements of the substation site, and draw the images of each grounding wire in the software according to the distribution and quantity of each grounding wire in the grounding cabinet; when any grounding wire is in place, removed or on standby, the grounding wire image corresponding to the current grounding wire will display the storage status in real time;

[0023] An information receiving module is used to receive the grounding wire port status of each grounding wire lock, receive the storage status, operation information, and usage log of all grounding wires in the grounding cabinet, and receive all logical processing results;

[0024] The simulation invoicing module is used to confirm the simulation invoicing to execute the ground wire hanging task or the ground wire removal task according to the operation task issued by the dispatching center, and generate the operation process of the ground wire hanging task or the ground wire removal task; judge each operation in the current operation process according to the existing ground wire status data. If the operation is correct and complies with the five-prevention operation rules, the next operation is allowed; if the operation is wrong / does not comply with the five-prevention operation rules, the execution device of the wrong operation item is displayed, and the wrong operation type is prompted by voice. After the wrong operation item is corrected, the voice prompt is turned off; until the operation process of the ground wire hanging task or the ground wire removal task is completed, an operation ticket is generated after the simulation is completed;

[0025] The real-time voice prompt module for operation errors is used to provide voice prompts for the type of error operation when an error operation item occurs during the simulated invoicing process;

[0026] The information transmission module is used to transmit the control instructions corresponding to the operation ticket to the ground wire management controller and send the operation ticket to the computer key.

[0027] Preferably, the simulated invoicing according to the operation task issued by the dispatch center to generate the operation ticket includes:

[0028] Use the information receiving module in the power microcomputer error prevention management system software to receive the operation tasks issued by the dispatching center;

[0029] Utilize the simulated invoicing module in the power microcomputer error prevention management system software, confirm the simulated invoicing execution of the ground wire hooking task or ground wire removal task according to the operation task issued by the dispatching center, and generate the operation process of the ground wire hooking task or ground wire removal task; judge each operation in the current operation process according to the existing ground wire status data;

[0030] If the operation is correct and complies with the five-prevention operation rules, the next step is allowed;

[0031] If the operation is wrong / does not comply with the five-prevention operation rules, the execution device of the wrong operation item will be displayed, and the real-time voice prompt module for operation errors in the power microcomputer error prevention management system software will be used to provide voice prompts for the wrong operation type. After the wrong operation item is corrected, the voice prompt will be turned off until the operation process of the ground wire hanging task or the ground wire removal task is completed. After the simulation is completed, an operation ticket will be generated.

[0032] Preferably, the ground line management control includes:

[0033] A control module, used to control the on and off of multiple intelligent locking piles;

[0034] An information receiving module is used to receive the grounding wire port status of each grounding wire lock head and receive the control instruction corresponding to the operation ticket generated by the five-defense workstation server;

[0035] The collection and update module is used to collect the inventory information and connection information of all grounding wires in the grounding cabinet, and update the storage status of all grounding wires in the grounding cabinet in real time;

[0036] The operation record statistics module is used to record the operation information and usage logs of all grounding wires in the grounding cabinet.

[0037] Preferably, a passive coding method is adopted to encode each stateful ground wire lock, and the code of each stateful ground wire lock is unique.

[0038] Preferably, the operation information of each grounding wire includes operator information corresponding to each grounding wire, the grounding wire number, the grounding wire installation location, and the use and return time information of the grounding wire.

[0039] The above technical solution of the present invention has the following beneficial effects compared with the prior art:

[0040] The intelligent grounding wire management system for substations described in the present invention obtains the storage and out-of-stock status, as well as the attachment and removal status of grounding wires in real time through a grounding wire management controller, and transmits the storage status, operation information and usage log to the five-defense workstation server through a wireless network, so as to realize the safe and reliable collection of the storage status of grounding wires and ensure the normal and safe operation of substation equipment; through the regional anti-error system master station server, it is detected whether the storage status and attachment status of each grounding wire are consistent, so as to know in advance whether there are grounding wires that are not recorded, attached or removed, so as to ensure the integrity of the grounding wire information and avoid missing grounding wires. Causing misoperation accidents; connecting the five-protection workstation server and the regional anti-error system main station server through a physical isolation device, and connecting the regional anti-error system main station and the ground wire management controller through a wired connection, the safe transmission of the main station data and control commands can be achieved; the operation and maintenance work is connected in the built-in power microcomputer anti-error management system software of the five-protection workstation server, which can realize the function of preventing the ground wire operation from missing, and effectively prevent the occurrence of misoperation accidents such as "hanging the ground wire with power on, closing the circuit breaker (isolating switch) with the ground wire on", further strengthening the equipment management and operation safety supervision work, which has profound significance for the safe production construction of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein:

[0042] Figure 1 This is an architecture diagram of a substation intelligent grounding management system provided by the present invention;

[0043] Figure 2 It is a flow chart of grounding wire hooking operation based on the substation intelligent grounding management system provided by the present invention;

[0044] Figure 3 The present invention provides a flow chart of grounding wire removal operations based on the intelligent grounding management system for substations. DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0046] Reference Figure 1 As shown, Figure 1 The present invention provides an architecture diagram of a substation intelligent grounding management system, which specifically includes:

[0047] Multiple grounding wire locks, the grounding wire end of each grounding wire lock is connected to the grounding wire, and the device terminal of each grounding wire lock is connected to an intelligent locking pile and a grounding wire lock with status;

[0048] Multiple intelligent locking posts, each intelligent locking post is used to detect the grounding wire port status of its corresponding grounding wire lock head;

[0049] The ground wire management controller is installed on the ground wire cabinet of the substation and connected to multiple intelligent locking piles; it is used to control the on and off of multiple intelligent locking piles and receive the ground wire port status of each ground wire lock; it collects the inventory information and hanging information of all ground wires in the ground wire cabinet, updates the storage status of all ground wires in the ground wire cabinet in real time, and records the operation information and usage log of all ground wires in the ground wire cabinet; wherein, the ground wire management controller is connected to multiple intelligent locking piles using an RS485 bus; the operation information of each ground wire includes the operator information (name, operation authority, etc.) corresponding to each ground wire, the ground wire number, the ground wire installation location, and the ground wire access and return time information;

[0050] Wherein, the ground line management control includes:

[0051] A control module is used to control the on and off of multiple intelligent locking piles; an information receiving module is used to receive the grounding wire port status of each grounding wire lock head and receive the control instructions corresponding to the operation ticket generated by the five-defense workstation server;

[0052] The collection and update module is used to collect the inventory information and connection information of all grounding wires in the grounding cabinet, and update the storage status of all grounding wires in the grounding cabinet in real time;

[0053] The operation record statistics module is used to record the operation information and usage logs of all grounding wires in the grounding cabinet, providing an effective basis for substation management; the maximum number of records in the operation record statistics module can reach 2000, and the circular overwrite storage mode is adopted to realize the data power-off memory function; the historical records of the usage logs of all grounding wires can be queried, retrieved, and printed out;

[0054] The regional error prevention system main station server is connected to the ground wire management controller through a network cable; it is used to receive the inventory information and attachment information of all ground wires in the ground wire cabinet, perform logical processing on the inventory information and attachment information of all ground wires in the ground wire cabinet, and obtain all logical processing results;

[0055] Wherein, the regional error prevention system master station server includes:

[0056] The graphic display module is used to display the inventory status and connection status of all grounding wires in the grounding cabinet in the form of grounding wire images according to the inventory information and connection information of all grounding wires in the grounding cabinet; if the inventory status of any grounding wire in the grounding cabinet is in inventory, a white light will be on in the grounding wire image; if the connection status of any grounding wire in the grounding cabinet is connected, a green light will be on in the grounding wire image;

[0057] The anti-error verification module is used to detect whether the storage status of each grounding wire in the grounding cabinet displayed in the graphic corresponds to its connection status; if the storage status of any grounding wire in the grounding cabinet displayed in the graphic corresponds to its connection status, the blue light in the current grounding wire image is on; if the storage status of each grounding wire in the grounding cabinet displayed in the graphic does not correspond to its connection status, the red light in the current grounding wire image is on;

[0058] The grounding wire abnormality alarm module is used to make the alarm corresponding to the current grounding wire emit an audible and visual alarm when the red light is on in any grounding wire image;

[0059] The logic processing of the inventory information and the connection information of all the grounding wires in the grounding cabinet to obtain all the logic processing results includes:

[0060] The graphic display module in the regional error prevention system master station server is used to display the inventory status and connection status of all grounding wires in the grounding cabinet in the form of grounding wire images according to the inventory information and connection information of all grounding wires in the grounding cabinet.

[0061] The error prevention verification module in the regional error prevention system master station server is used to detect whether the storage status of each grounding wire in the grounding cabinet corresponds to its connection status; if the storage status of any grounding wire in the grounding cabinet corresponds to its connection status, the logic processing result of the current grounding wire is output; if the storage status of each grounding wire in the grounding cabinet does not correspond to its connection status, the logic processing result of the current grounding wire is output, and the grounding wire abnormality alarm module in the regional error prevention system master station server is used to issue an audible and visual alarm; all logic processing results are obtained in sequence;

[0062] The five-defense workstation server is placed in the safety zone I, connected to the regional anti-error system main station through a physical isolation device, and connected to the ground wire management controller through a network cable; it is used for the built-in power microcomputer anti-error management system software, receiving the ground wire port status of each ground wire lock, receiving the storage status, operation information, and usage log of all ground wires in the ground wire cabinet, receiving all logical processing results, and simulating invoicing according to the operation tasks issued by the dispatching center, generating operation tickets, and transmitting the control instructions corresponding to the operation tickets to the ground wire management controller; wherein, the ground wire management controller and the five-defense workstation adopt a 10M / 100M Ethernet interface and are connected through a network cable; the physical isolation device is an intelligent ground wire hard isolation input / output device, which is used to realize two-way transmission and safety isolation between the regional anti-error system main station and the five-defense workstation;

[0063] The power microcomputer error prevention management system software includes:

[0064] The 3D modeling module is used to build a simulation platform according to the requirements of the substation site, and draw the images of each grounding wire in the software according to the distribution and quantity of each grounding wire in the grounding cabinet; when any grounding wire is in place, removed or on standby, the grounding wire image corresponding to the current grounding wire will display the storage status in real time;

[0065] An information receiving module is used to receive the grounding wire port status of each grounding wire lock, receive the storage status, operation information, and usage log of all grounding wires in the grounding cabinet, and receive all logical processing results;

[0066] The simulation invoicing module is used to confirm the simulation invoicing to execute the ground wire hanging task or the ground wire removal task according to the operation task issued by the dispatching center, and generate the operation process of the ground wire hanging task or the ground wire removal task; judge each operation in the current operation process according to the existing ground wire status data. If the operation is correct and complies with the five-prevention operation rules, the next operation is allowed; if the operation is wrong / does not comply with the five-prevention operation rules, the execution device of the wrong operation item is displayed, and the wrong operation type is prompted by voice. After the wrong operation item is corrected, the voice prompt is turned off; until the operation process of the ground wire hanging task or the ground wire removal task is completed, an operation ticket is generated after the simulation is completed;

[0067] The real-time voice prompt module for operation errors is used to provide voice prompts for the type of error operation when an error operation item occurs during the simulated invoicing process;

[0068] An information transmission module is used to transmit the control instructions corresponding to the operation ticket to the ground wire management controller and send the operation ticket to the computer key;

[0069] The power microcomputer error prevention management system software also includes a network equipment working condition query module, which is used to query the working condition of the base station and the collector, etc.

[0070] The simulated invoicing according to the operation task issued by the dispatch center to generate the operation ticket includes:

[0071] Use the information receiving module in the power microcomputer error prevention management system software to receive the operation tasks issued by the dispatching center;

[0072] Utilize the simulated invoicing module in the power microcomputer error prevention management system software, confirm the simulated invoicing execution of the ground wire hooking task or ground wire removal task according to the operation task issued by the dispatching center, and generate the operation process of the ground wire hooking task or ground wire removal task; judge each operation in the current operation process according to the existing ground wire status data;

[0073] If the operation is correct and complies with the five-prevention operation rules, the next step is allowed;

[0074] If the operation is wrong / does not comply with the five-prevention operation rules, the execution device of the wrong operation item will be displayed, and the operation error real-time voice prompt module in the power microcomputer error prevention management system software will be used to prompt the wrong operation type through voice. After the wrong operation item is corrected, the voice prompt will be turned off; until the operation process of the ground wire hanging task or the ground wire removal task is completed, the operation ticket will be generated after the simulation is completed;

[0075] The computer key is wirelessly connected to the five-defense workstation server and multiple status ground wire locks; it is used to read the status of the status ground wire lock, control the on and off of the status ground wire lock, determine the identity of the ground wire that needs to be hung or removed from the ground wire lock head corresponding to the status ground wire lock, receive the operation ticket generated by the five-defense workstation server, and transmit the status of the ground wire after the operation ticket is completed to the five-defense workstation server; wherein, the status ground wire lock adopts a passive coding method, and the code of each status ground wire lock is unique, and the unlocking function is realized by identifying the code through the computer key.

[0076] In summary, the regional error prevention system master station performs logical processing on the inventory information and attachment information of all grounding wires in the grounding cabinet according to business needs, providing a technical basis for the subsequent power microcomputer error prevention management system software; through the regional error prevention system master station server, it detects whether the inventory status and attachment status of each grounding wire are consistent, and can know in advance whether there are unrecorded, unattached or unremoved grounding wires, ensuring the integrity of the grounding wire information, avoiding missing grounding wires and causing misoperation accidents; connecting the five-prevention workstation server and the regional error prevention system master station server through a physical isolation device, and connecting the regional error prevention system master station and the grounding management controller through a wired connection, the master station data and control commands can be safely transmitted; the operation and maintenance work is connected in the built-in power microcomputer error prevention management system software of the five-prevention workstation server, which can realize the function of preventing grounding wire operation from running away, effectively preventing the occurrence of misoperation accidents such as "hanging grounding wires with power on, closing circuit breakers (isolating switches) with grounding wires", further strengthening equipment management and operation safety supervision, and has profound significance for the safe production construction of power systems.

[0077] In addition, the grounding wire management controller can be used alone or in conjunction with the power microcomputer error prevention management system software, including:

[0078] When the ground wire management controller is used alone, it receives, stores and transmits the inventory information and connection information of all ground wires in the ground wire cabinet, updates the storage status of all ground wires in the ground wire cabinet in real time, and records the operation information and usage logs of all ground wires in the ground wire cabinet.

[0079] When the ground wire management controller cooperates with the power microcomputer anti-error management system software to perform ground wire storage management, the ground wire management controller transmits the storage status, operation information and usage logs of all ground wires in the ground wire cabinet to the power microcomputer anti-error management system, and the power microcomputer anti-error management system software receives the storage status, operation information and usage logs of all ground wires; the power microcomputer anti-error management system software transmits the generated operation ticket to the ground wire management controller, and automatically locks and unlocks the intelligent locking pile corresponding to the operation ticket;

[0080] The 3D modeling module in the power microcomputer anti-error management system software will update and display the storage status of all grounding wires in real time. The operation and maintenance personnel can use the power microcomputer anti-error management system software on the terminal host of the five-protection workstation to query the storage status, operation information, and usage log of all grounding wires in the ground cabinet in real time;

[0081] Among them, the grounding wire management refers to the storage and access management of the grounding wire in the grounding cabinet; the substation intelligent grounding management system uses the power microcomputer anti-error management system software to perform radio frequency encoding and identification on the grounding wire, and performs identity recognition management on the storage and access of the grounding wire to ensure that the access and storage of the grounding wire meet the requirements of the line operation task and ensure that the grounding wire can be correctly accessed and stored in time; the operation and maintenance personnel adopt two authorization mechanisms for the access of the grounding wire, namely network authorization and local ID card, and record the access information of the grounding wire to form a grounding wire usage log, which is stored in the power system; at the same time, the five-defense workstation can display the placement of all grounding wires in the grounding cabinet in real time; after the operation and maintenance personnel take the grounding wire out of the grounding cabinet, they must perform actual operations in accordance with the operation sequence permitted by the simulation verification. Any operation that does not comply with the system's pre-set operation will be blocked and warned by the substation intelligent grounding management system, and the operation and maintenance personnel will not be able to obtain the next operation permission, so as to ensure that the operation and maintenance personnel perform disassembly and installation and hanging according to the simulation requirements (operation tasks issued by the dispatcher); when returning the grounding wire, it is required to place the grounding wire in the designated location after use. For errors in the storage location, the substation intelligent grounding management system will give an alarm prompt.

[0082] In summary, from Figure 1 It can be seen that the substation intelligent grounding management system is divided into a device layer, an application layer, and a user layer;

[0083] The equipment layer includes grounding wires, intelligent locking piles, status grounding wire locks, and grounding wire lock heads; it is responsible for interacting with on-site equipment, collecting grounding wire status, and sending control commands to status grounding wire locks to perform operations;

[0084] The application layer includes a ground wire management controller and a regional anti-error system master station; it is responsible for logically processing data according to business needs and displaying the processed data on the front-end user layer page; the regional anti-error system master station is responsible for station-side anti-error data maintenance, electrical diagram data maintenance, anti-error verification, and ground wire / net door / lock status collection and transmission to the master station;

[0085] The user layer includes five-protection workstations, computer keys and power microcomputer anti-error management system software; the user layer is the system front-end layer that users can directly see and operate, and is responsible for displaying the data logic processing results of the application layer according to the role of the currently logged-in user; the power microcomputer anti-error management system software is responsible for the maintenance of anti-error data between stations in the whole system, anti-error verification between stations, operation monitoring of anti-error devices of each substation, interface with the automation system and distribution of remote signals to each substation, and cross-regional data transmission services; among them, the physical isolation device between the application layer and the user layer is responsible for transmitting the data and control commands of the main station.

[0086] Reference Figure 2 As shown, Figure 2The grounding wire hooking operation flow chart based on the substation intelligent grounding management system provided by the present invention specifically includes:

[0087] Operation and maintenance personnel operation process, including:

[0088] The operation and maintenance personnel use the power microcomputer anti-error management system software to simulate the billing and generate an operation ticket. According to the operation ticket, the operation and maintenance personnel determine the smart locking pile and status ground wire lock to be used, and determine the ground wire lock head to be used according to the smart locking pile and status ground wire lock to be used, and select the ground wire to be hung on the ground wire end of the current ground wire lock head;

[0089] The operation and maintenance personnel take the grounding wire that needs to be connected from the grounding cabinet to the site for operation; use the computer key to read the current grounding wire lock with status, confirm the identity of the grounding wire that needs to be connected on the grounding wire end of the current grounding wire lock head, and then connect the current grounding wire to the grounding wire end of the current grounding wire lock head;

[0090] System information processing flow, including:

[0091] After the operation and maintenance personnel use the system to generate an operation ticket, the operation ticket is sent to the computer key through the power microcomputer anti-error management system software; the control command corresponding to the operation ticket is sent to the current state ground wire lock through the computer key to unlock it; at the same time, the unlocking instruction is sent to the ground wire management controller through the network cable through the power microcomputer anti-error management system software; the unlocking instruction is sent to the current intelligent locking pile through the ground wire management controller; the current intelligent locking pile receives the unlocking instruction, and according to the unlocking instruction, releases the mandatory lock of the ground wire lock head corresponding to the current intelligent locking pile;

[0092] After the operation and maintenance personnel complete the grounding wire connection task, they use the computer key to output the current grounding wire connection information, obtain the current grounding wire storage status, and transmit it back to the power microcomputer anti-error management system software deployed in the five-prevention workstation;

[0093] Among them, before performing the grounding wire hanging operation, it is necessary to detect that the grounding wire port status is idle through the intelligent locking pile corresponding to the current grounding wire lock before the hanging operation can be performed.

[0094] Reference Figure 3 As shown, Figure 3 The present invention provides a flow chart of ground wire removal operation based on the substation intelligent grounding management system, which specifically includes:

[0095] Operation and maintenance personnel operation process, including:

[0096] The operation and maintenance personnel use the power microcomputer anti-error management system software to simulate billing and generate an operation ticket; according to the operation ticket, determine the smart locking pile and status ground wire lock to be used, and determine the ground wire lock head to be used according to the smart locking pile and status ground wire lock to be used, and select the ground wire that needs to be removed from the ground wire end of the current ground wire lock head;

[0097] After the operation and maintenance personnel arrive at the site for operation, they use the electronic key to read the status ground wire lock, confirm the identity of the ground wire that needs to be removed on the ground wire end of the current ground wire lock head, and then remove the current ground wire conductor end on the ground wire end of the current ground wire lock head; the operation and maintenance personnel use the power key to unlock the current status ground wire lock and remove the ground end of the current ground wire;

[0098] System information processing flow, including:

[0099] After the operation and maintenance personnel use the system to generate the operation sheet, they send the operation ticket to the computer key through the power microcomputer anti-error management system software; through the computer key, read the current status ground wire lock, and confirm the ground wire identity mark that needs to be removed on the ground wire lock head corresponding to the current status ground wire lock;

[0100] After the operation and maintenance personnel complete the grounding wire hooking task, they store the removal information of the current grounding wire through the grounding wire management controller, and obtain the storage status of the current grounding wire through the computer key, and transmit it back to the power microcomputer anti-error management system software deployed in the five-prevention workstation;

[0101] Among them, before performing the grounding wire removal operation, it is necessary to detect that the grounding wire port status is in the wiring state through the intelligent locking pile corresponding to the current grounding wire lock before the removal operation can be performed.

[0102] In summary, through the operation steps of hanging and removing, the management of the grounding wire during use can be realized, the status of the grounding wire and the equipment status can be intuitively displayed, and the grounding wire status information can be sent to the dispatching, operation and maintenance center or station-side system; effectively prevent the occurrence of misoperation accidents such as "hanging the grounding wire with power on, closing the circuit breaker (isolating switch) with the grounding wire on".

[0103] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A substation intelligent grounding wire management system, characterized in that: include: Multiple grounding wire locks, the grounding wire end of each grounding wire lock is connected to the grounding wire, and the device terminal of each grounding wire lock is connected to an intelligent locking pile and a grounding wire lock with status; Multiple intelligent locking posts, each intelligent locking post is used to detect the grounding wire port status of its corresponding grounding wire lock head; The ground wire management controller is installed on the ground wire cabinet of the substation and connected to multiple intelligent locking piles; it is used to control the on and off of multiple intelligent locking piles and receive the ground wire port status of each ground wire lock head; it collects the inventory information and hanging information of all ground wires in the ground wire cabinet, updates the storage status of all ground wires in the ground wire cabinet in real time, and records the operation information and usage logs of all ground wires in the ground wire cabinet; The regional error prevention system master station server is connected to the ground wire management controller; it is used to receive the inventory information and connection information of all ground wires in the ground wire cabinet, perform logical processing on the inventory information and connection information of all ground wires in the ground wire cabinet, and obtain all logical processing results; The five-defense workstation server is placed in safety zone I, connected to the regional anti-error system master station through a physical isolation device, and connected to the ground wire management controller through a network cable; It is used for the built-in power microcomputer anti-error management system software to receive the grounding wire port status of each grounding wire lock head, receive the storage status, operation information, and usage log of all grounding wires in the grounding cabinet, receive all logical processing results, and simulate invoicing according to the operation tasks issued by the dispatching center, generate operation tickets, and transmit the control instructions corresponding to the operation tickets to the grounding management controller; The computer key is wirelessly connected to the five-defense workstation server and multiple status ground wire locks; it is used to read the status of the status ground wire lock, control the on and off of the status ground wire lock, determine the identity of the ground wire that needs to be hung or removed from the ground wire lock head corresponding to the status ground wire lock, receive the operation ticket generated by the five-defense workstation server, and transmit the ground wire status after the operation ticket is completed to the five-defense workstation server.

2. The intelligent grounding wire management system for substations according to claim 1 is characterized in that: The ground wire management controller and the five-defense workstation use a 10M / 100M Ethernet interface and are connected via a network cable; the ground wire management controller and multiple intelligent locking piles are connected using an RS485 bus.

3. The intelligent grounding wire management system for substations according to claim 1 is characterized in that: The physical isolation device is an intelligent ground wire hard isolation input / output device, which is used to realize two-way transmission and safety isolation between the regional error prevention system master station and the five-protection workstation.

4. The intelligent grounding wire management system for substations according to claim 1, characterized in that: The regional error prevention system master station server includes: The graphic display module is used to display the inventory status and connection status of all grounding wires in the grounding cabinet in the form of grounding wire images according to the inventory information and connection information of all grounding wires in the grounding cabinet; if the inventory status of any grounding wire in the grounding cabinet is in inventory, a white light will be on in the grounding wire image; if the connection status of any grounding wire in the grounding cabinet is connected, a green light will be on in the grounding wire image; The anti-error verification module is used to detect whether the storage status of each grounding wire in the grounding cabinet displayed in the graphic corresponds to its connection status; if the storage status of any grounding wire in the grounding cabinet displayed in the graphic corresponds to its connection status, the blue light in the current grounding wire image is on; if the storage status of each grounding wire in the grounding cabinet displayed in the graphic does not correspond to its connection status, the red light in the current grounding wire image is on; The grounding wire abnormality alarm module is used to make the alarm corresponding to the current grounding wire emit an audible and visual alarm when the red light is on in any grounding wire image.

5. The intelligent grounding wire management system for substations according to claim 4, characterized in that: The logic processing of the inventory information and the connection information of all the grounding wires in the grounding cabinet is performed to obtain all the logic processing results including: The graphic display module in the regional error prevention system master station server is used to display the inventory status and connection status of all grounding wires in the grounding cabinet in the form of grounding wire images according to the inventory information and connection information of all grounding wires in the grounding cabinet. The error prevention verification module in the regional error prevention system main station server is used to detect whether the storage status of each grounding wire in the grounding cabinet corresponds to its connection status; if the storage status of any grounding wire in the grounding cabinet corresponds to its connection status, the logical processing result of the current grounding wire is output; if the storage status of each grounding wire in the grounding cabinet does not correspond to its connection status, the logical processing result of the current grounding wire is output, and the grounding wire abnormality alarm module in the regional error prevention system main station server is used to issue an audible and visual alarm; all logical processing results are obtained in sequence.

6. The intelligent grounding wire management system for substations according to claim 1, characterized in that: The power microcomputer error prevention management system software includes: The 3D modeling module is used to build a simulation platform according to the requirements of the substation site, and draw the images of each grounding wire in the software according to the distribution and quantity of each grounding wire in the grounding cabinet; when any grounding wire is in place, removed or on standby, the grounding wire image corresponding to the current grounding wire will display the storage status in real time; An information receiving module is used to receive the grounding wire port status of each grounding wire lock, receive the storage status, operation information, and usage log of all grounding wires in the grounding cabinet, and receive all logical processing results; The simulation invoicing module is used to confirm the simulation invoicing to execute the ground wire hanging task or the ground wire removal task according to the operation task issued by the dispatching center, and generate the operation process of the ground wire hanging task or the ground wire removal task; judge each operation in the current operation process according to the existing ground wire status data. If the operation is correct and complies with the five-prevention operation rules, the next operation is allowed; if the operation is wrong / does not comply with the five-prevention operation rules, the execution device of the wrong operation item is displayed, and the wrong operation type is prompted by voice. After the wrong operation item is corrected, the voice prompt is turned off; until the operation process of the ground wire hanging task or the ground wire removal task is completed, an operation ticket is generated after the simulation is completed; The real-time voice prompt module for operation errors is used to provide voice prompts for the type of error operation when an error operation item occurs during the simulated invoicing process; The information transmission module is used to transmit the control instructions corresponding to the operation ticket to the ground wire management controller and send the operation ticket to the computer key.

7. The intelligent grounding wire management system for substations according to claim 6, characterized in that: The simulated invoicing according to the operation task issued by the dispatch center and the generation of the operation ticket include: Use the information receiving module in the power microcomputer error prevention management system software to receive the operation tasks issued by the dispatching center; Utilize the simulated invoicing module in the power microcomputer error prevention management system software, confirm the simulated invoicing execution of the ground wire hooking task or ground wire removal task according to the operation task issued by the dispatching center, and generate the operation process of the ground wire hooking task or ground wire removal task; judge each operation in the current operation process according to the existing ground wire status data; If the operation is correct and complies with the five-prevention operation rules, the next step is allowed; If the operation is wrong / does not comply with the five-prevention operation rules, the execution device of the wrong operation item will be displayed, and the real-time voice prompt module for operation errors in the power microcomputer error prevention management system software will be used to provide voice prompts for the wrong operation type. After the wrong operation item is corrected, the voice prompt will be turned off until the operation process of the ground wire hanging task or the ground wire removal task is completed. After the simulation is completed, an operation ticket will be generated.

8. The intelligent grounding wire management system for substations according to claim 1, characterized in that: The ground line management control includes: A control module, used to control the on and off of multiple intelligent locking piles; An information receiving module is used to receive the grounding wire port status of each grounding wire lock head and receive the control instruction corresponding to the operation ticket generated by the five-defense workstation server; The collection and update module is used to collect the inventory information and connection information of all grounding wires in the grounding cabinet, and update the storage status of all grounding wires in the grounding cabinet in real time; The operation record statistics module is used to record the operation information and usage logs of all grounding wires in the grounding cabinet.

9. The intelligent grounding wire management system for substations according to claim 1, characterized in that: A passive coding method is adopted to encode each stateful ground wire lock, and the code of each stateful ground wire lock is unique.

10. The intelligent grounding wire management system for substations according to claim 1, characterized in that: The operation information of each grounding wire includes the operator information corresponding to each grounding wire, the grounding wire number, the grounding wire installation location, and the grounding wire use and return time information.

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