Anti-misoperation intelligent inspection method and system for secondary equipment of transformer substation, and medium

Abstract

The invention relates to an anti-misoperation intelligent inspection method and system for secondary equipment of a transformer substation and a medium. The method comprises the following steps: acquiring operation state data of a secondary soft pressing plate and primary equipment; establishing an equipment relation model based on a power dispatching procedure, a relay protection procedure and a substation field operation procedure; constructing an anti-error rule base; when a switching operation instruction of the transformer substation is received, simulation rehearsal is carried out on the operation sequence based on the anti-error rule base and the operation state data of the secondary soft pressing plate and the primary equipment; the primary equipment and the secondary equipment are operated based on the operation sequence of the simulation rehearsal, and an inspection report is generated; model decomposition, graph-model matching, rule calling and the like of the transformer substation are achieved through the topology technology, misjudgment prevention of primary and secondary equipment operation is further achieved, and it is effectively avoided that a protection pressing plate is missed in the primary equipment operation process; the method has the advantages that the equipment relation model and the anti-error rule base are established, the substation model decomposition and anti-error judgment are realized, and the protection pressing plate is effectively prevented from being missed to be put and withdrawn.

Description

Technical Field

[0001] This invention belongs to the field of substation inspection technology, specifically relating to an intelligent inspection method, system, and medium for preventing malfunctions in substation secondary equipment. Background Technology

[0002] Relay protection and safety automatic devices (hereinafter referred to as "relay protection") are the foundation for ensuring the safe and stable operation of the power grid. Their correct operation is crucial to ensuring the reliability of power supply. The correct engagement and disengagement of relay protection device pressure plates are related to the realization of device functions and whether the action output can function normally. Failure to engage or disengage or incorrect engagement and disengagement will directly affect the realization of device functions, leading to device failure to operate or malfunction. Therefore, ensuring the correct engagement and disengagement of relay protection device pressure plates is of utmost importance. At present, the prevention and control of misoperation for primary equipment is very mature, but the prevention and control of misoperation for relay protection device pressure plates is relatively weak. In many provinces, substation maintenance personnel still operate item by item according to pre-written operation tickets. This mode is prone to errors in filling out operation tickets, missing items, or omissions, which can lead to incorrect engagement and disengagement of relay protection device pressure plates and cause incorrect device operation. With the continuous expansion of the power grid and the increasing number of operating relay protection devices, the per capita maintenance equipment has increased significantly, leading to a certain inadequacy in personnel capacity. The traditional manual management model for relay protection switchboards is no longer adequate for the current power grid requirements. Therefore, a shift from manual to technical management is necessary. In particular, the traditional manual reading and verification of switchboard positions for hard switchboards remains in place, and there is no phase-locking logic between primary and secondary equipment. Accidents caused by missed switchboard activation or deactivation still occur frequently. There have been instances where secondary equipment operation has resulted in primary equipment operating without protection, seriously affecting the safe operation of the power grid, causing considerable inconvenience to operation and management, increasing management difficulty, and creating safety hazards. Therefore, it is essential to provide a smart inspection method, system, and medium for substation secondary equipment to prevent misoperation. This method establishes an equipment relationship model and anti-misoperation rule base, enables substation model decomposition and anti-misoperation judgment, effectively avoids missed switchboard activation or deactivation, improves management quality, and reduces economic losses. Summary of the Invention

[0003] (I) Technical Solution The purpose of this invention is to overcome the shortcomings of the prior art and provide a method, system and medium for intelligent inspection of substation secondary equipment to prevent errors, which can establish equipment relationship models and anti-misoperation rule bases, realize substation model decomposition and anti-misoperation judgment, effectively avoid missing protection pressure plates, improve management quality and reduce economic losses.

[0004] The objective of this invention is achieved as follows: Firstly, a method for intelligent inspection of secondary equipment in a substation to prevent malfunctions, the specific steps of which are as follows: S101: Collect operating status data of the secondary soft pressure plate and primary equipment; S102: Based on power dispatching regulations, relay protection regulations, and substation field operation regulations, establish an equipment relationship model according to the relationship between primary and secondary equipment under different voltage levels and different main wiring methods; S103: Construct a rule base for preventing errors in primary and secondary equipment based on the equipment relationship model; S104: When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the anti-misoperation rule base of primary and secondary equipment, the secondary soft pressure plate, and the operating status data of primary equipment. S105: Based on the simulated operation sequence, operate the primary and secondary equipment. After the operation is completed, perform periodic inspections on the primary and secondary equipment, obtain the inspection results, and generate an inspection report.

[0005] Furthermore, the specific steps of S101 are as follows: S1.1: A magnetic induction status sensor is installed on the hard plate of the substation protection panel, and the magnetic induction status sensor is linked to the hard plate through a magnetic steel accessory; S1.2: When the hard platen is in the activated position, the magnet corresponds to the internal detection component of the magnetic induction state sensor and outputs the activated digital signal; S1.3: When the hard platen is in the retracted position, the magnet moves away from the detection component and outputs a retracted digital signal; S1.4: By establishing a communication connection with the substation monitoring system, the operating status data of the secondary soft pressure plate and primary equipment can be read in real time; S1.5: Transmit the operating status data of the hard pressure plate, the secondary soft pressure plate, and the primary equipment to the station-end five-prevention host.

[0006] Furthermore, the error prevention rule base in S103 includes three types of constraint logic, as follows: The secondary constraint primary logic means that before the primary equipment is put into operation, the corresponding secondary soft pressure plate must be in the correct activation / deactivation state to prevent the primary equipment from operating without protection. The secondary constraint and secondary logic are used to prevent improper operation between secondary devices from causing normal operating equipment to malfunction or fail to operate. The primary constraint secondary logic ensures that the secondary soft pressure plate corresponding to the primary device in operation cannot be arbitrarily disengaged, thus ensuring that the primary device is continuously protected.

[0007] Furthermore, the specific steps of S104 are as follows: S4.1: Decompose and match the primary and secondary equipment models of the substation based on topology technology; S4.2: Verify each operation step to ensure it complies with the error prevention rules; S4.3: If there is an operation that violates the rules, an early warning will be triggered and the operation will be locked. At the same time, the cause of the abnormality and the correction suggestions will be output. The operation that violates the rules includes the primary equipment operation not matching the corresponding secondary pressure plate activation / deactivation, and the secondary pressure plate activation / deactivation conflicting with the primary equipment operating status.

[0008] Furthermore, the topology technique in S4.1 includes the following steps: S4.11: Establish a substation primary and secondary equipment topology model based on topology technology, and define the association identifiers between primary and secondary equipment. The primary equipment includes switches, busbars, and transformers, and the secondary equipment includes hard pressure plates and secondary soft pressure plates. S4.12: Parse the device number in the operation ticket and match it with the corresponding device node in the topology model; S4.13: Call the constraint logic corresponding to the device node in the anti-misoperation rule base, perform condition judgment based on the primary device operation status data, and output the verification result; S4.14: Analyze whether the verification results meet all constraints; S4.15: If all constraints are met, the operation is allowed; otherwise, a latch instruction is generated.

[0009] Furthermore, the specific steps of S105 are as follows: S5.1: When the primary equipment performs a switching operation, the inspection process is triggered to check the activation and deactivation status of the secondary soft pressure plate involved in the operation and determine whether it conforms to the secondary constraint primary logic. S5.2: When the secondary soft pressure plate is engaged or disengaged, the operating status data of the operation object and associated secondary equipment are checked to determine whether they conform to the secondary constraints and secondary logic. S5.3: Real-time monitoring of the status of the secondary pressure plate corresponding to the primary equipment during operation; S5.4: If the secondary soft pressure plate exits abnormally, a warning signal will be issued based on the primary constraint secondary logic.

[0010] Secondly, a substation secondary equipment anti-malfunction intelligent inspection system includes a memory and a processor. The memory includes a program for the substation secondary equipment anti-malfunction intelligent inspection method as described above. When the program for the substation secondary equipment anti-malfunction intelligent inspection method is executed by the processor, it performs the following steps: Collect operational status data of the secondary soft pressure plate and primary equipment; Based on power dispatching regulations, relay protection regulations, and substation field operation regulations, an equipment relationship model is established according to the relationship between primary and secondary equipment under different voltage levels and different main wiring methods. A rule base for preventing errors in primary and secondary equipment is constructed based on an equipment relationship model. When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the anti-misoperation rule library of primary and secondary equipment, as well as the operating status data of the secondary soft pressure plate and the primary equipment. The primary and secondary equipment are operated based on the simulated operation sequence. After the operation is completed, the primary and secondary equipment are periodically inspected to obtain the inspection results and generate an inspection report.

[0011] Furthermore, the acquisition of operating status data for the secondary soft pressure plate and primary equipment specifically includes: A magnetic induction status sensor is installed on the hard plate of the substation protection panel. The magnetic induction status sensor is linked to the hard plate through a magnetic steel accessory. When the hard plate is in the activated position, the magnet corresponds to the internal detection component of the magnetic induction state sensor and outputs the activated digital signal. When the hard plate is in the retracted position, the magnet moves away from the detection component and outputs a retracted digital signal; By establishing a communication connection with the substation monitoring system, the operating status data of the secondary soft pressure plate and primary equipment can be read in real time. The operating status data of the hard pressure plate, the secondary soft pressure plate, and the primary equipment are uniformly transmitted to the station-end five-prevention host.

[0012] Furthermore, based on the dispatching procedures, relay protection procedures, and substation on-site operation procedures, and combined with the main wiring method of the substation's primary equipment and the configuration relationship of the secondary equipment, a rule base for preventing errors in primary and secondary equipment is established. This rule base includes three types of constraint logic: The secondary constraint primary logic means that before the primary equipment is put into operation, the corresponding secondary soft pressure plate must be in the correct activation / deactivation state to prevent the primary equipment from operating without protection. The secondary constraint and secondary logic are used to prevent improper operation between secondary devices from causing normal operating equipment to malfunction or fail to operate. The primary constraint secondary logic ensures that the secondary soft pressure plate corresponding to the primary device in operation cannot be arbitrarily disengaged, thus ensuring that the primary device is continuously protected.

[0013] Thirdly, a computer-readable storage medium includes a substation secondary equipment anti-misoperation intelligent inspection method program, which, when executed by a processor, implements the steps of the substation secondary equipment anti-misoperation intelligent inspection method as described above.

[0014] (ii) Beneficial effects 1. This invention collects operating status data of secondary soft pressure plates and primary equipment, and establishes an equipment relationship model based on power dispatching regulations, relay protection regulations, and substation field operation regulations, according to the correlation between primary and secondary equipment under different voltage levels and different main wiring methods; 2. This invention constructs a rule base for preventing errors in primary and secondary equipment based on an equipment relationship model. When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the rule base for preventing errors in primary and secondary equipment, the secondary soft pressure plate, and the operating status data of the primary equipment. 3. This invention operates primary and secondary equipment based on simulated operation sequences. After the operation is completed, the primary and secondary equipment are periodically inspected to obtain inspection results and generate inspection reports. 4. This invention uses topology technology to achieve substation model decomposition, model matching, and rule calling, thereby enabling error prevention judgment in primary and secondary equipment operations. This effectively avoids the omission of protection pressure plates during primary equipment operation, improves the quality of daily power system management, and reduces economic losses caused by misoperation. Attached Figure Description

[0015] Figure 1 This is a flowchart of the method of the present invention.

[0016] Figure 2 This is a schematic diagram of the magnetic induction acquisition principle of the secondary soft pressure plate of the present invention.

[0017] Figure 3 This is a block diagram of the overall system structure of the present invention. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments and / or accompanying drawings. Example 1

[0019] like Figure 1-2 As shown, a method for intelligent inspection of secondary equipment in a substation to prevent malfunctions is described, and the specific steps of the method are as follows: S101: Collect operating status data of the secondary soft pressure plate and primary equipment; According to an embodiment of the present invention, the specific details are as follows: A magnetic induction status sensor is installed on the hard plate of the substation protection panel. The magnetic induction status sensor is linked to the hard plate through a magnetic steel accessory. When the hard plate is in the activated position, the magnet corresponds to the internal detection component of the magnetic induction state sensor and outputs the activated digital signal. When the hard plate is in the retracted position, the magnet moves away from the detection component and outputs a retracted digital signal; By establishing a communication connection with the substation monitoring system, the operating status data of the secondary soft pressure plate and primary equipment can be read in real time. The operating status data of the hard pressure plate, the secondary soft pressure plate, and the primary equipment are uniformly transmitted to the station-end five-prevention host.

[0020] It should be noted that soft pressure plates mainly read their status by communicating with the monitoring system; hard pressure plates use non-electrical quantity detection technology. Without affecting the function of the protection circuit or the output circuit of the pressure plate, they use a status sensing module to collect the status. Combined with the actual engineering situation, non-electrical quantity detection technology or operation memory method is used to convert the on / off status into a switch signal for acquisition.

[0021] As one possible specific implementation, such as Figure 2 As shown, each protective screen is equipped with a pressure plate status acquisition device to collect signals from the pressure plate status sensors of each row of pressure plates; each row of pressure plates is equipped with a guide rail type pressure plate status sensor. Based on the pressure plate type, a pressure plate accessory with a magnet is made. The pressure plate accessory is snapped onto the rigid pressure plate body. As the pressure plate moves, the magnet corresponds to the detection component inside the guide rail sensor; when the pressure plate is in position, the magnet corresponds to the detection component and outputs a position signal; when the pressure plate is retracted, the magnet moves away from the detection component and outputs a retraction signal.

[0022] By installing position detection devices (such as magnetic induction sensors, infrared receivers, etc.) on the pressure plate, the engagement / retraction status and whether the pressure plate is engaged are detected using the principle of non-electrical contact. Currently, the main method for non-electrical data acquisition is the magnetic induction principle.

[0023] S102: Based on power dispatching regulations, relay protection regulations, and substation field operation regulations, establish an equipment relationship model according to the relationship between primary and secondary equipment under different voltage levels and different main wiring methods; In this embodiment, the specific steps include: analyzing the configuration and application of primary and secondary equipment at various voltage levels, main wiring methods, conventional and intelligent stations, collecting real-time status data of primary and secondary equipment, constructing primary and secondary equipment models, summarizing general rules of primary and secondary equipment to form a primary and secondary anti-misoperation rule base, and analyzing the operation mode in real time through topology anti-misoperation technology to analyze the operational risks of primary and secondary equipment.

[0024] Regarding the verification of primary and secondary equipment for preventing misoperation, in the simulation and rehearsal stage of the station-side anti-misoperation system, the equipment logic verification and anti-misoperation verification between primary and secondary equipment are added, and an operation sequence is generated and transmitted to the anti-misoperation computer key to perform switching operations.

[0025] S103: Construct a rule base for preventing errors in primary and secondary equipment based on the equipment relationship model; According to an embodiment of the present invention, the error prevention rule base includes three types of constraint logic, as follows: The secondary constraint primary logic means that before the primary equipment is put into operation, the corresponding secondary soft pressure plate must be in the correct activation / deactivation state to prevent the primary equipment from operating without protection. The secondary constraint and secondary logic are used to prevent improper operation between secondary devices from causing normal operating equipment to malfunction or fail to operate. The primary constraint secondary logic ensures that the secondary soft pressure plate corresponding to the primary device in operation cannot be arbitrarily disengaged, thus ensuring that the primary device is continuously protected.

[0026] It should be noted that establishing a state-aware intelligent pressure plate secondary anti-misoperation system in the substation enables centralized control and unified management of substation anti-misoperation data, thereby improving the level of substation operation and maintenance management; improving existing conventional anti-misoperation devices, enabling remote anomaly handling and hazard point early warning analysis of anti-misoperation devices; adding anti-misoperation interlocking rules and operation verification functions between primary and secondary equipment, intelligent inspection of secondary pressure plates, and achieving "full anti-misoperation" with primary constraining secondary, secondary constraining secondary, and secondary constraining primary.

[0027] Primary and secondary equipment anti-misoperation interlocking and intelligent status verification: Based on typical technical specifications and the correlation of secondary equipment, establish the status constraint relationship between primary equipment and secondary devices, and between secondary devices and secondary equipment operations; the status of primary equipment and secondary soft pressure plates is obtained through communication with the monitoring system; the status of secondary hard pressure plates is pre-collected using pressure plate status detection devices; during equipment operation, the substation model is decomposed, the model is matched, and rules are called through topology technology to realize the anti-misoperation judgment of primary and secondary equipment operations; the anti-misoperation judgment of primary and secondary equipment operations includes the anti-misoperation of secondary equipment accompanying the operation of primary equipment, as well as the anti-misoperation of pure secondary equipment, thereby constructing a comprehensive anti-misoperation verification system covering primary and secondary equipment.

[0028] S104: When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the anti-misoperation rule base of primary and secondary equipment, the secondary soft pressure plate, and the operating status data of primary equipment. In this embodiment, the specific steps according to the present invention are as follows: The substation primary and secondary equipment models are decomposed and matched using topology technology. Verify that each operation step complies with the error prevention rules; If any operation violates the rules, an early warning will be triggered immediately and the operation will be locked. At the same time, the cause of the abnormality and the correction suggestions will be output. The operation that violates the rules includes the primary equipment operation not matching the corresponding secondary pressure plate activation / deactivation, or the secondary pressure plate activation / deactivation conflicting with the primary equipment operating status.

[0029] According to an embodiment of the present invention, the topology technique includes the following steps: A substation primary and secondary equipment topology model is established based on topology technology, and the association identifiers between primary and secondary equipment are defined. The primary equipment includes switches, busbars, and transformers, and the secondary equipment includes hard pressure plates and secondary soft pressure plates. Parse the device number in the operation ticket and match it with the corresponding device node in the topology model; Call the constraint logic corresponding to the device node in the anti-misoperation rule base, perform condition judgment based on the primary device operation status data, and output the verification result; Analyze whether the verification results meet all constraints; If all constraints are met, the operation is allowed; otherwise, a latching instruction is generated.

[0030] It should be noted that by establishing a secondary equipment description table, the basic attributes of secondary objects are described, and the relationships between secondary objects and between secondary objects and primary objects are formed, including a secondary anti-misoperation device table, an anti-misoperation signal table, etc.; the secondary equipment description table is imported into the anti-misoperation host, and primary and secondary anti-misoperation models are automatically generated, and anti-misoperation logic verification is performed by combining anti-misoperation logic rules and real-time status.

[0031] As a specific implementation method, the method includes: before actual operation, the operator conducts a simulation rehearsal on the anti-misoperation host via a simulation terminal; the host simulates the operation on the relevant equipment according to the equipment scope of the operation ticket, the current status of the equipment, and the operation rules and logic requirements; the system automatically performs anti-misoperation judgment on each simulated operation step, and if the operation is correct, it is allowed to continue; if the operation is incorrect, it is prohibited from execution, and the equipment name and number of the incorrect operation item are displayed, and the operator is helped to correct it through voice prompts and other means.

[0032] Specifically, the anti-misoperation simulation and pre-run technology is applied to the anti-misoperation verification management of secondary equipment to prevent misoperation. By combining the multi-source status information of primary and secondary equipment, the anti-misoperation simulation and pre-run of secondary equipment can be realized, and intelligent warnings and lockouts can be issued for risks that violate logic verification.

[0033] Simulation environment settings: Set up the same environmental conditions in the simulation system as in actual operation, including the status of primary and secondary equipment.

[0034] Simulate operation according to the operation ticket: Operators shall perform the secondary pressure plate insertion and withdrawal operation on the simulation system in accordance with the requirements of the operation ticket; during the operation, the operator shall carefully observe the reaction of the simulation system to ensure that each step of the operation complies with the specifications.

[0035] Identify and correct potential problems: If errors are found in the operation ticket or abnormal reactions occur in the simulation system during the simulation operation, they should be recorded and corrected in a timely manner.

[0036] S105: Based on the simulated operation sequence, operate the primary and secondary equipment. After the operation is completed, perform periodic inspections on the primary and secondary equipment, obtain the inspection results, and generate an inspection report.

[0037] According to an embodiment of the present invention, the specific steps are as follows: When the primary equipment performs a switching operation, the inspection process is triggered to check the activation and deactivation status of the secondary soft pressure plate involved in the operation and determine whether it conforms to the secondary constraint primary logic. When the secondary soft pressure plate is engaged or disengaged, the operating status data of the operation object and associated secondary equipment are checked to determine whether they meet the secondary constraints and secondary logic. Real-time monitoring of the status of the secondary pressure plate corresponding to the primary equipment during operation; If the secondary soft pressure plate exits abnormally, a warning signal will be issued based on the primary constraint secondary logic.

[0038] This invention relates to an intelligent inspection method, system, and medium for preventing malfunctions in substation secondary equipment. In use, this invention collects operational status data from secondary soft pressure plates and primary equipment. Based on power dispatching regulations, relay protection regulations, and substation on-site operation regulations, it establishes an equipment relationship model according to the correlation between primary and secondary equipment under different voltage levels and main wiring methods. Based on this equipment relationship model, this invention constructs a rule base for preventing malfunctions in primary and secondary equipment. When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the rule base and operational status data of the secondary soft pressure plates and primary equipment. This invention is based on a model... The proposed operational sequence involves operating primary and secondary equipment. After the operation is completed, periodic inspections are performed on the primary and secondary equipment to obtain inspection results and generate inspection reports. This invention utilizes topology technology to achieve substation model decomposition, model matching, and rule invocation, thereby enabling error prevention judgment in primary and secondary equipment operations. This effectively avoids the omission of protection switch activation / deactivation during primary equipment operation, improves the quality of daily power system management, and reduces economic losses caused by misoperation. This invention has the advantages of establishing equipment relationship models and error prevention rule bases, realizing substation model decomposition and error prevention judgment, effectively avoiding the omission of protection switch activation / deactivation, improving management quality, and reducing economic losses. Example 2

[0039] like Figure 3 As shown, a substation secondary equipment anti-misoperation intelligent inspection system includes a memory and a processor. The memory includes a program for the substation secondary equipment anti-misoperation intelligent inspection method as described above. When the program for the substation secondary equipment anti-misoperation intelligent inspection method is executed by the processor, it implements the following steps: Collect operational status data of the secondary soft pressure plate and primary equipment; According to an embodiment of the present invention, it specifically includes: A magnetic induction status sensor is installed on the hard plate of the substation protection panel. The magnetic induction status sensor is linked to the hard plate through a magnetic steel accessory. When the hard plate is in the activated position, the magnet corresponds to the internal detection component of the magnetic induction state sensor and outputs the activated digital signal. When the hard plate is in the retracted position, the magnet moves away from the detection component and outputs a retracted digital signal; By establishing a communication connection with the substation monitoring system, the operating status data of the secondary soft pressure plate and primary equipment can be read in real time. The operating status data of the hard pressure plate, the secondary soft pressure plate, and the primary equipment are uniformly transmitted to the station-end five-prevention host.

[0040] Based on power dispatching regulations, relay protection regulations, and substation field operation regulations, an equipment relationship model is established according to the relationship between primary and secondary equipment under different voltage levels and different main wiring methods. A rule base for preventing errors in primary and secondary equipment is constructed based on an equipment relationship model. According to an embodiment of the present invention, the rule base includes three types of constraint logic: The secondary constraint primary logic means that before the primary equipment is put into operation, the corresponding secondary soft pressure plate must be in the correct activation / deactivation state to prevent the primary equipment from operating without protection. The secondary constraint and secondary logic are used to prevent improper operation between secondary devices from causing normal operating equipment to malfunction or fail to operate. The primary constraint secondary logic ensures that the secondary soft pressure plate corresponding to the primary device in operation cannot be arbitrarily disengaged, thus ensuring that the primary device is continuously protected.

[0041] When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the anti-misoperation rule library of primary and secondary equipment, as well as the operating status data of the secondary soft pressure plate and the primary equipment. The primary and secondary equipment are operated based on the simulated operation sequence. After the operation is completed, the primary and secondary equipment are periodically inspected to obtain the inspection results and generate an inspection report.

[0042] This invention relates to an intelligent inspection system for preventing malfunctions in substation secondary equipment. In use, this invention collects operational status data from secondary soft-plate switches and primary equipment. Based on power dispatching regulations, relay protection regulations, and substation on-site operation regulations, it establishes an equipment relationship model according to the correlation between primary and secondary equipment under different voltage levels and main wiring methods. Based on this equipment relationship model, the invention constructs a rule base for preventing malfunctions in primary and secondary equipment. When a substation switching operation command is received, the system simulates and rehearses the operation sequence based on the rule base and the operational status data of the secondary soft-plate switches and primary equipment. This invention is based on simulation and rehearsal. The operation sequence operates on primary and secondary equipment. After the operation is completed, periodic inspections are performed on the primary and secondary equipment to obtain inspection results and generate inspection reports. This invention uses topology technology to realize substation model decomposition, model matching, and rule calling, thereby realizing error prevention judgment for primary and secondary equipment operations. It effectively avoids the omission of protection circuit breakers during primary equipment operation, improves the quality of daily power system management, and reduces economic losses caused by misoperation. This invention has the advantages of establishing equipment relationship models and error prevention rule bases, realizing substation model decomposition and error prevention judgment, effectively avoiding the omission of protection circuit breakers, improving management quality, and reducing economic losses. Example 3

[0043] A computer-readable storage medium includes a program for an intelligent inspection method to prevent malfunctions in substation secondary equipment. When executed by a processor, the program implements the steps of the intelligent inspection method for preventing malfunctions in substation secondary equipment as described above.

[0044] This invention relates to an intelligent inspection method, system, and medium for preventing malfunctions in substation secondary equipment. In use, this invention collects operational status data from secondary soft pressure plates and primary equipment. Based on power dispatching regulations, relay protection regulations, and substation on-site operation regulations, it establishes an equipment relationship model according to the correlation between primary and secondary equipment under different voltage levels and main wiring methods. Based on this equipment relationship model, this invention constructs a rule base for preventing malfunctions in primary and secondary equipment. When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the rule base and operational status data of the secondary soft pressure plates and primary equipment. This invention is based on a model... The proposed operational sequence involves operating primary and secondary equipment. After the operation is completed, periodic inspections are performed on the primary and secondary equipment to obtain inspection results and generate inspection reports. This invention utilizes topology technology to achieve substation model decomposition, model matching, and rule invocation, thereby enabling error prevention judgment in primary and secondary equipment operations. This effectively avoids the omission of protection switch activation / deactivation during primary equipment operation, improves the quality of daily power system management, and reduces economic losses caused by misoperation. This invention has the advantages of establishing equipment relationship models and error prevention rule bases, realizing substation model decomposition and error prevention judgment, effectively avoiding the omission of protection switch activation / deactivation, improving management quality, and reducing economic losses.

[0045] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways; the device embodiments described above are merely illustrative. For example, the division of units is merely a logical functional division, and there may be other division methods in actual implementation, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed; in addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical, or other forms.

[0046] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0047] In addition, in the various embodiments of the present invention, each functional unit can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0048] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0049] Alternatively, if the integrated units of the present invention are implemented as software functional modules and sold or used as independent products, they can also be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROM, RAM, magnetic disks, or optical disks.

Claims

1. A method for intelligent inspection of secondary equipment in a substation to prevent malfunctions, characterized in that: The specific steps of the method are as follows: S101: Collect operating status data of the secondary soft pressure plate and primary equipment; S102: Based on power dispatching regulations, relay protection regulations, and substation field operation regulations, establish an equipment relationship model according to the relationship between primary and secondary equipment under different voltage levels and different main wiring methods; S103: Construct a rule base for preventing errors in primary and secondary equipment based on the equipment relationship model; S104: When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the anti-misoperation rule base of primary and secondary equipment, the secondary soft pressure plate, and the operating status data of primary equipment. S105: Based on the simulated operation sequence, operate the primary and secondary equipment. After the operation is completed, perform periodic inspections on the primary and secondary equipment, obtain the inspection results, and generate an inspection report.

2. The intelligent inspection method for preventing malfunctions in substation secondary equipment as described in claim 1, characterized in that: The specific steps of S101 are as follows: S1.1: A magnetic induction status sensor is installed on the hard plate of the substation protection panel, and the magnetic induction status sensor is linked to the hard plate through a magnetic steel accessory; S1.2: When the hard platen is in the activated position, the magnet corresponds to the internal detection component of the magnetic induction state sensor and outputs the activated digital signal; S1.3: When the hard platen is in the retracted position, the magnet moves away from the detection component and outputs a retracted digital signal; S1.4: By establishing a communication connection with the substation monitoring system, the operating status data of the secondary soft pressure plate and primary equipment can be read in real time; S1.5: Transmit the operating status data of the hard pressure plate, the secondary soft pressure plate, and the primary equipment to the station-end five-prevention host.

3. The intelligent inspection method for preventing malfunctions in substation secondary equipment as described in claim 2, characterized in that: The error prevention rule base in S103 contains three types of constraint logic, as follows: The secondary constraint primary logic means that before the primary equipment is put into operation, the corresponding secondary soft pressure plate must be in the correct activation / deactivation state to prevent the primary equipment from operating without protection. The secondary constraint and secondary logic are used to prevent improper operation between secondary devices from causing normal operating equipment to malfunction or fail to operate. The primary constraint secondary logic ensures that the secondary soft pressure plate corresponding to the primary device in operation cannot be arbitrarily disengaged, thus ensuring that the primary device is continuously protected.

4. The intelligent inspection method for preventing malfunctions in substation secondary equipment as described in claim 3, characterized in that: The specific steps of S104 are as follows: S4.1: Decompose and match the primary and secondary equipment models of the substation based on topology technology; S4.2: Verify each operation step to ensure it complies with the error prevention rules; S4.3: If there is an operation that violates the rules, an early warning will be triggered and the operation will be locked. At the same time, the cause of the abnormality and the correction suggestions will be output. The operation that violates the rules includes the primary equipment operation not matching the corresponding secondary pressure plate activation / deactivation, and the secondary pressure plate activation / deactivation conflicting with the primary equipment operating status.

5. The intelligent inspection method for preventing malfunctions in substation secondary equipment as described in claim 4, characterized in that: The topology technique in S4.1 includes the following steps: S4.11: Establish a substation primary and secondary equipment topology model based on topology technology, and define the association identifiers between primary and secondary equipment. The primary equipment includes switches, busbars, and transformers, and the secondary equipment includes hard pressure plates and secondary soft pressure plates. S4.12: Parse the device number in the operation ticket and match it with the corresponding device node in the topology model; S4.13: Call the constraint logic corresponding to the device node in the anti-misoperation rule base, perform condition judgment based on the primary device operation status data, and output the verification result; S4.14: Analyze whether the verification results meet all constraints; S4.15: If all constraints are met, the operation is allowed; otherwise, a latch instruction is generated.

6. The intelligent inspection method for preventing malfunctions in substation secondary equipment as described in claim 4, characterized in that: The specific steps of S105 are as follows: S5.1: When the primary equipment performs a switching operation, the inspection process is triggered to check the activation and deactivation status of the secondary soft pressure plate involved in the operation and determine whether it conforms to the secondary constraint primary logic. S5.2: When the secondary soft pressure plate is engaged or disengaged, the operating status data of the operation object and associated secondary equipment are checked to determine whether they conform to the secondary constraints and secondary logic. S5.3: Real-time monitoring of the status of the secondary pressure plate corresponding to the primary equipment during operation; S5.4: If the secondary soft pressure plate exits abnormally, a warning signal will be issued based on the primary constraint secondary logic.

7. A substation secondary equipment anti-misoperation intelligent inspection system as described in claim 1, comprising a memory and a processor, wherein the memory includes a program for the substation secondary equipment anti-misoperation intelligent inspection method as described in any one of claims 1-6, characterized in that: When the program of the substation secondary equipment anti-misoperation intelligent inspection method is executed by the processor, the following steps are implemented: Collect operational status data of the secondary soft pressure plate and primary equipment; Based on power dispatching regulations, relay protection regulations, and substation field operation regulations, an equipment relationship model is established according to the relationship between primary and secondary equipment under different voltage levels and different main wiring methods. A rule base for preventing errors in primary and secondary equipment is constructed based on an equipment relationship model. When a substation switching operation command is received, the operation sequence is simulated and rehearsed based on the anti-misoperation rule library of primary and secondary equipment, as well as the operating status data of the secondary soft pressure plate and the primary equipment. The primary and secondary equipment are operated based on the simulated operation sequence. After the operation is completed, the primary and secondary equipment are periodically inspected to obtain the inspection results and generate an inspection report.

8. The intelligent inspection system for preventing malfunctions in substation secondary equipment as described in claim 7, characterized in that: The acquisition of operating status data for the secondary soft pressure plate and primary equipment specifically includes: A magnetic induction status sensor is installed on the hard plate of the substation protection panel. The magnetic induction status sensor is linked to the hard plate through a magnetic steel accessory. When the hard plate is in the activated position, the magnet corresponds to the internal detection component of the magnetic induction state sensor and outputs the activated digital signal. When the hard plate is in the retracted position, the magnet moves away from the detection component and outputs a retracted digital signal; By establishing a communication connection with the substation monitoring system, the operating status data of the secondary soft pressure plate and primary equipment can be read in real time. The operating status data of the hard pressure plate, the secondary soft pressure plate, and the primary equipment are uniformly transmitted to the station-end five-prevention host.

9. The intelligent inspection system for preventing malfunctions in substation secondary equipment as described in claim 8, characterized in that: Based on the dispatching procedures, relay protection procedures, and substation on-site operation procedures, and combined with the main wiring method of the primary equipment and the configuration relationship of the secondary equipment in the substation, a rule base for preventing errors in primary and secondary equipment is established. This rule base includes three types of constraint logic: The secondary constraint primary logic means that before the primary equipment is put into operation, the corresponding secondary soft pressure plate must be in the correct activation / deactivation state to prevent the primary equipment from operating without protection. The secondary constraint and secondary logic are used to prevent improper operation between secondary devices from causing normal operating equipment to malfunction or fail to operate. The primary constraint secondary logic ensures that the secondary soft pressure plate corresponding to the primary device in operation cannot be arbitrarily disengaged, thus ensuring that the primary device is continuously protected.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a substation secondary equipment anti-misoperation intelligent inspection method program. When the substation secondary equipment anti-misoperation intelligent inspection method program is executed by a processor, it implements the steps of the substation secondary equipment anti-misoperation intelligent inspection method as described in any one of claims 1-6.

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