One-key simulation intelligent anti-error method for transformer substation

Abstract

The invention relates to the technical field of anti-misoperation of a power system, in particular to a one-key simulation intelligent anti-misoperation method for a transformer substation, which comprises the steps that a target operation ticket is retrieved in an operation ticket database, the target operation ticket comprises a plurality of operation items, and one operation item comprises an operation sequence number, a switch equipment ID, an initial equipment state and operation content; if the real-time equipment state of each operation item switch equipment ID in the target operation ticket is the initial equipment state, the invoicing succeeds and the target operation ticket is transmitted to the computer key, otherwise, the invoicing fails; and after the computer key is accessed to the control terminal, sequentially executing a plurality of operation items according to the operation sequence numbers. According to the technical scheme, the target operation ticket can be generated through one key, and intelligent error prevention of electrical operation is achieved by integrating the equipment state and the electrical state.

Description

Technical Field

[0001] The present application relates to the technical field of preventing misoperation of power systems, and in particular to a one-button simulation intelligent misoperation prevention method for substations. Background Art

[0002] An operation ticket is a written basis for electrical operations in a power system, which describes in detail the steps, sequence and conditions of the operations in the power system to ensure the accuracy of equipment operation. Generally, an operation ticket includes multiple operation items in a certain sequence. Executing each operation item in sequence can achieve the effect required by the operation ticket.

[0003] At present, a patent application document with publication number CN112351063A discloses an operation ticket-based power equipment operation monitoring system and method, wherein the method includes: firstly, an operation ticket needs to be prepared, and the prepared operation ticket is transmitted to a monitoring terminal, and the operation ticket is then passed to a computer terminal after being reviewed by a guardian; after the operator arrives at the equipment location with a computer key, identity authentication is performed, and the computer key transmits the operator's identity authentication information and positioning information to the monitoring terminal, and the guardian conducts a review. If the review is passed, the operator is authorized to operate, and the operator can use the computer key to open the locking lock on the power equipment. If the guardian does not conduct a review or the review fails, the operator is prohibited from performing the unlocking operation.

[0004] The above method requires manual preparation of an operation ticket and specifying the operator of the operation ticket, and avoids electrical operation errors by verifying the operator's identity. However, after the identity review is passed, it is still impossible to avoid erroneous operations such as improper operation sequence caused by the operator's negligence. Manual preparation of operation tickets requires high professionalism and cannot effectively realize intelligent error prevention of electrical operations. Summary of the invention

[0005] In order to solve the technical problem that intelligent error prevention of electrical operations cannot be effectively realized, the present application provides a one-key simulation intelligent error prevention method for substations, which can generate a target operation ticket with one key, and realize intelligent error prevention of electrical operations by integrating equipment status and electrical status.

[0006] The present application provides a one-key simulation intelligent error prevention method for a substation, the method comprising: retrieving a target operation ticket in an operation ticket database, the target operation ticket comprising a plurality of operation items, one operation item comprising an operation sequence number, a switch device ID, an initial device state and an operation content; in response to the real-time device state of the switch device ID of each operation item in the target operation ticket being the initial device state, the invoice is issued successfully and the target operation ticket is transmitted to a computer key, otherwise, the invoice fails; after the computer key is connected to a control terminal, a plurality of operation items are executed in sequence according to the operation sequence number, comprising: before executing any operation item, if the waiting time of the operation item does not exceed the maximum time, and the electrical state consistency is greater than the consistency threshold, the operation permission of the switch device ID in the operation item is enabled; wherein the maximum time is positively correlated with the operation sequence number of the operation item; the electrical state consistency Y of the operation item i is greater than the consistency threshold. i for: is the theoretical value of the electrical parameter of the associated electrical equipment after the operation item k with the operation sequence number k is executed,

[0007] The actual value of the electrical parameter of the electrical equipment associated with operation item k after the k-th operation item is executed.

[0008] Preferably, the operation ticket database includes a variety of typical operation tickets in the substation, and each typical operation ticket corresponds to an operation ticket ID.

[0009] Preferably, the operation ticket ID is the name of the operation task, and retrieving the target operation ticket in the operation ticket database includes: retrieving typical operation tickets in the operation ticket database according to the name or keyword of the operation task, and using the retrieved typical operation ticket as the target operation ticket.

[0010] Preferably, after the invoicing fails, the method further comprises: issuing an error reminder, and outputting a switch device ID whose real-time device state is not equal to the initial device state, so as to check the operation item corresponding to the switch device ID.

[0011] Preferably, the maximum duration T of operation item i i =T i =(x i -1)×t0,x i is the operation number of operation item i, and t0 is the preset duration.

[0012] Preferably, in response to the operation sequence number of the operation item i being 1, the electrical state consistency of the operation item i is 1.

[0013] Preferably, the process of obtaining the theoretical value of the electrical parameter includes: aligning the equipment in the wiring diagram in the simulation environment so that the simulated state of the switching equipment and the electrical equipment in the wiring diagram is the same as the actual state; executing multiple operation items in the simulation environment in sequence according to the operation sequence number, and recording the simulated value of the electrical parameter of the associated electrical equipment after each operation item is executed, and the simulated value of the electrical parameter corresponds to the theoretical value of the electrical parameter.

[0014] Preferably, the initial device state is the switch state of the switch device ID before executing the target operation ticket.

[0015] Preferably, the switch device comprises a switch, a knife switch and a grounding knife switch.

[0016] The technical solution of this application has the following beneficial technical effects:

[0017] Retrieve the target operation ticket in the operation ticket database. The target operation ticket includes multiple operation items. One operation item includes an operation sequence number, a switch device ID, an initial device state and an operation content. The operation ticket database contains all typical operation tickets. By retrieving the name or keyword of the operation task, the corresponding typical operation ticket can be retrieved, and the invoicing operation can be implemented quickly, concisely and accurately, so as to realize one-click quick invoicing. If the real-time device state of the switch device ID of each operation item in the target operation ticket is the initial device state, the invoicing is successful and the target operation ticket is transmitted to the computer key. After the computer key is connected to the control terminal, multiple operation items are executed in sequence according to the operation sequence number.

[0018] Furthermore, in the process of executing multiple operation items in sequence according to the operation sequence number, the waiting time and electrical state consistency of the comprehensive operation items are used as judgment conditions, and the operation permissions of each operation item in the target operation ticket are opened in sequence; the waiting time is used as the judgment condition for opening the operation permission, forcing the operator to execute each operation item in a timely manner, so that the operator pays more attention to the execution process of the electrical operation to avoid wrong operation. At the same time, the electrical state consistency is used as the judgment condition for opening the operation permission. Only when all the operation items before an operation item have been executed according to the operation sequence number, the operation permission of the switch device ID in the operation item can be opened, ensuring that the operator can execute multiple operation items in sequence according to the operation sequence number, avoiding wrong operation and realizing intelligent error prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0020] Figure 1It is a flow chart of a one-key simulation intelligent error prevention method for a substation according to an embodiment of the present application.

[0021] Figure 2 is a schematic diagram of electrical state consistency according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0023] It should be understood that when the application uses the terms "first", "second", etc., they are only used to distinguish different objects, rather than to describe a specific order. The terms "include" and "comprise" used in the application indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections.

[0024] The present application provides a one-key simulation intelligent error prevention method for a substation, which is used to ensure the accuracy of electrical operation and avoid erroneous operation when performing electrical operation on the switchgear of the substation. The switchgear includes a switch, a knife switch and a grounding knife switch.

[0025] See also Figure 1 , is a flow chart of a one-key simulation intelligent error prevention method for a substation according to an embodiment of the present application. According to different requirements, the order of the steps in the flow chart can be changed, and some steps can be omitted.

[0026] S11, searching the operation ticket database for a target operation ticket, the target operation ticket including a plurality of operation items, one operation item including an operation sequence number, a switch device ID, an initial device state and operation content.

[0027] In one embodiment, the operation ticket database includes a variety of typical operation tickets in the substation. Typical operation tickets are operation tickets frequently used in the daily operation of the substation. The various typical operation tickets in the operation ticket database can meet all electrical operations in the daily operation of the substation.

[0028] It is understandable that in order to avoid erroneous operations caused by errors in the typical operation ticket itself, each typical operation ticket in the operation ticket database needs to be reviewed. Only when the review is passed can it be stored in the operation ticket database as a typical operation ticket.

[0029] Each typical operation ticket corresponds to an operation ticket ID, which can be a number or the name of an operation task. For example, the operation ticket ID is "17 interval hot standby to operation". When it is necessary to switch the electrical equipment 17 from interval hot standby to operation, only the name or keyword of the operation task (such as "17") needs to be entered to retrieve the corresponding typical operation ticket in the operation ticket database, and the retrieved typical operation ticket is used as the target operation ticket.

[0030] In the traditional graphic simulation invoicing method, when electrical operations need to be performed, the operator is required to click on the graphics in the invoicing system in sequence according to the requirements of the operation task, thereby manually preparing an operation ticket; in contrast, in the embodiment of the present application, only the name or keyword of the corresponding operation task needs to be retrieved to call up the corresponding operation ticket, so as to quickly, concisely and accurately implement the invoicing operation, improve the invoicing efficiency, and typical operation tickets are all reviewed and approved in advance to avoid misoperation caused by temporary manual invoicing and cumbersome graphic simulation that leads to errors in the target operation ticket.

[0031] In one embodiment, the target operation ticket includes multiple operation items, and one operation item includes an operation sequence number, a switch device ID, an initial device state, and an operation content. The process of executing the target operation ticket is the process of executing the multiple operation items in the target operation ticket; the initial device state is the switch state of the switch device ID before executing the target operation ticket.

[0032] Exemplarily, a target operation ticket includes 2 operation items, the operation sequence number of operation item 1 is 1, the switch device ID is 341, the initial device state is disconnected, and the operation content is closed 341; the operation sequence number of operation item 2 is 2, the switch device ID is 346, the initial device state is disconnected, and the operation content is closed 346.

[0033] In this way, by building an operation ticket database, the traditional cumbersome graphic simulation invoicing operation is replaced. Only the name or keyword of the operation task needs to be searched to retrieve the corresponding typical operation ticket, so that the invoicing operation can be implemented quickly, concisely and accurately, realizing one-click quick invoicing.

[0034] S12, in response to the real-time device status of the switch device ID of each operation item in the target operation ticket being the initial device status, the ticket is issued successfully and the target operation ticket is transmitted to the computer key, otherwise, the ticket is issued unsuccessfully.

[0035] In one embodiment, the target operation ticket includes multiple operation items. If the real-time device status of the switch device ID of each operation item in the target operation ticket is the initial device status, it means that each operation item in the target operation ticket can be executed. At this time, the invoicing is successful, and the target operation ticket is transferred to the computer key to complete the one-key invoicing process; otherwise, it means that there is a conflict between the operation items in the target operation ticket and the real-time device status. At this time, the invoicing fails, an error reminder is issued, and the switch device ID whose real-time device status is not equal to the initial device status is output, and the operation item corresponding to the switch device ID is checked.

[0036] It can be understood that when the invoicing fails, it means that the typical operation ticket selected from the operation ticket database is wrong, or the target operation ticket is wrong. Therefore, the typical operation ticket is reselected or the target operation ticket is reviewed again.

[0037] S13, after the computer key is connected to the control terminal, multiple operation items are executed in sequence according to the operation sequence numbers.

[0038] In one embodiment, after the computer key is connected to the control terminal, the control terminal will execute multiple operation items in sequence according to the operation sequence number to complete the operation task corresponding to the target operation ticket. In the process of executing multiple operation items in sequence according to the operation sequence number, in order to ensure that the operator can execute according to the operation sequence number, verification is required before executing any operation item. Only after the verification is passed will the operation authority of the switch device ID corresponding to the operation item be opened, and the operator can only perform operations on the switch device ID corresponding to the operation item; that is, the authority of the switch device in each operation item in the target operation ticket is opened in sequence, thereby avoiding erroneous operations caused by improper operation sequence due to negligence of the operator, and effectively realizing intelligent error prevention of electrical operations.

[0039] Specifically, executing multiple operation items in sequence according to the operation sequence number includes: before executing any operation item, if the waiting time of the operation item does not exceed the maximum time, and the electrical state consistency is greater than the consistency threshold, opening the operation permission of the switch device ID in the operation item.

[0040] To enable the operation permission of a switch device ID in an operation item, two conditions must be met.

[0041] First, the waiting time of the operation item does not exceed the maximum time. The waiting time is the time interval between the time when the computer key accesses the control terminal and the current time; the maximum time is positively correlated with the operation sequence number of the operation item. Specifically, the maximum time T of operation item i i T i =(x i -1)×t0,x iis the operation number of operation item i, t0 is the preset time length; the preset time length is 3 seconds, that is, the allowed waiting time length of an operation item is 3 seconds. The value range of the operation number is a positive integer not less than 1.

[0042] For example, if the operation sequence number of operation item i is 1, the maximum duration is 0 seconds, that is, the operation authority of the switch device ID in operation item i can be opened after the computer key is connected to the control terminal; if the operation sequence number of operation item i is 2, the maximum duration is 3 seconds. If the waiting time of operation item i exceeds 3 seconds, it means that the operator has not completed the operation item with the operation sequence number 1 within the allowed waiting time. At this time, the operation authority of the switch device ID in operation item i will not be opened. In this way, in the process of performing electrical operations on the substation, the waiting time is used as the judgment condition for opening the operation authority, forcing the operator to execute each operation item in a timely manner, so that the operator pays more attention to the execution process of the electrical operation and avoids misoperation.

[0043] Secondly, the electrical state consistency of the operation item is greater than the consistency threshold. Each operation item in the target operation ticket corresponds to an electrical state consistency. The electrical state consistency of operation item i is determined by the electrical parameters (voltage and current) of the electrical equipment (transformer, current transformer and voltage transformer, etc.) in the substation to determine whether the operation items before operation item i have been executed according to the operation sequence number. If the operation items before operation item i have been executed according to the operation sequence number, the electrical state consistency of operation item i is a larger value, and operation item i can be executed at this time; otherwise, the electrical state consistency of operation item i is a smaller value. In order to ensure that the operator can execute multiple operation items in sequence according to the operation sequence number, the operation permission of the switch device ID in operation item i will not be opened at this time.

[0044] Specifically, the electrical state consistency of operation item i is the difference between the actual value of the electrical parameter of the associated electrical device and the theoretical value of the electrical parameter after each operation item is executed before the operation item i is executed; wherein the associated electrical device of an operation item is the electrical device connected to the switch device ID in the operation item. i for: is the theoretical value of the electrical parameter of the associated electrical equipment after the operation item k with the operation sequence number k is executed, The actual value of the electrical parameter of the electrical equipment associated with operation item k after the k-th operation item is executed.

[0045] express and The Euclidean distance between them, and the consistency threshold is 0.6.

[0046] It can be understood that the kth operation item executed is the kth operation item executed by the operator during the actual operation process; under the premise that there is no wrong operation, the kth operation item executed is the operation item k with operation sequence number k in the target operation ticket.

[0047] It should be noted that, in response to the operation sequence number of the operation item i being 1, the electrical state consistency of the operation item i is 1.

[0048] For example, see Figure 2 , is a schematic diagram of electrical state consistency according to an embodiment of the present application. The target operation ticket includes 4 operation items, and Figure 2 The theoretical values ​​of the electrical parameters can be obtained in advance in the simulation environment; before executing the third operation item (that is, before executing the operation item with operation sequence number 3), calculate the Euclidean distance 1 and the Euclidean distance 2, the mean of the Euclidean distance 1 and the Euclidean distance 2 corresponds to the electrical state consistency of operation item 3 (that is, the operation item with operation sequence number 3), and the electrical state consistency of operation item 3 is greater than the consistency threshold, indicating that the operation items with operation sequence number 1 and operation sequence number 2 have been executed in sequence, and the operation authority of the switch device ID in operation item 3 can be enabled at this time.

[0049] In one embodiment, the theoretical value of the electrical parameter is generated by simulation of a computer system or a microcomputer system, and the process of obtaining the theoretical value of the electrical parameter includes: aligning the equipment in the wiring diagram in the simulation environment so that the simulated state of the switching equipment and the electrical equipment in the wiring diagram is the same as the real state; executing multiple operation items in the simulation environment in sequence according to the operation sequence number, and recording the simulated value of the electrical parameter of the associated electrical equipment after each operation item is executed, and the simulated value of the electrical parameter corresponds to the theoretical value of the electrical parameter.

[0050] The simulation environment is a virtual environment of the real scene of the substation simulated by a computer system or a microcomputer system (the equipment connection relationship and equipment parameters can be configured according to the real equipment connection relationship and equipment parameters in the substation). The simulation state is the equipment state of the switchgear and electrical equipment in the simulation environment.

[0051] In this way, the waiting time of the comprehensive operation item and the consistency of the electrical status are used as judgment conditions to enable the operation permissions of each operation item in the target operation ticket in turn; for any operation item, the operation permission of the switch device ID in the operation item can be enabled only after the operator executes multiple operation items before the operation item according to the operation sequence number, ensuring that the operator can execute multiple operation items in sequence according to the operation sequence number, avoiding misoperation and realizing intelligent error prevention.

[0052] The one-click simulation intelligent error prevention method for substations provided in the embodiment of the present application retrieves the target operation ticket in the operation ticket database. The target operation ticket includes multiple operation items. One operation item includes an operation sequence number, a switch device ID, an initial device state and an operation content. The operation ticket database contains all typical operation tickets. By retrieving the name or keyword of the operation task, the corresponding typical operation ticket can be retrieved, and the invoicing operation can be implemented quickly, concisely and accurately, realizing one-click quick invoicing. If the real-time device states of the switch device IDs of each operation item in the target operation ticket are all the initial device states, the invoicing is successful and the target operation ticket is transmitted to the computer key. After the computer key is connected to the control terminal, multiple operation items are executed in sequence according to the operation sequence number.

[0053] Furthermore, in the process of executing multiple operation items in sequence according to the operation sequence number, the waiting time and electrical state consistency of the comprehensive operation items are used as judgment conditions, and the operation permissions of each operation item in the target operation ticket are opened in sequence; the waiting time is used as the judgment condition for opening the operation permission, forcing the operator to execute each operation item in a timely manner, so that the operator pays more attention to the execution process of the electrical operation to avoid wrong operation. At the same time, the electrical state consistency is used as the judgment condition for opening the operation permission. Only when all the operation items before an operation item have been executed according to the operation sequence number, the operation permission of the switch device ID in the operation item can be opened, ensuring that the operator can execute multiple operation items in sequence according to the operation sequence number, avoiding wrong operation and realizing intelligent error prevention.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A one-key simulation intelligent error prevention method for a substation, characterized in that: The method comprises: Retrieving a target operation ticket from an operation ticket database, the target operation ticket including multiple operation items, one operation item including an operation sequence number, a switch device ID, an initial device state, and operation content; In response to the real-time device status of the switch device ID of each operation item in the target operation ticket being the initial device status, the ticket is issued successfully and the target operation ticket is transmitted to the computer key; otherwise, the ticket is issued unsuccessfully; After the computer key is connected to the control terminal, multiple operation items are executed in sequence according to the operation sequence number, including: before executing any operation item, if the waiting time of the operation item does not exceed the maximum time, and the electrical state consistency is greater than the consistency threshold, the operation permission of the switch device ID in the operation item is opened; wherein the maximum time is positively correlated with the operation sequence number of the operation item; Electrical status consistency Y of operation item i i for: is the theoretical value of the electrical parameter of the associated electrical equipment after the operation item k with the operation sequence number k is executed, The actual value of the electrical parameter of the electrical equipment associated with operation item k after the k-th operation item is executed.

2. The one-key simulation intelligent error prevention method for substation according to claim 1, characterized in that: The operation ticket database includes a variety of typical operation tickets in the substation, and each typical operation ticket corresponds to an operation ticket ID.

3. The one-key simulation intelligent error prevention method for substation according to claim 2, characterized in that: The operation ticket ID is the name of the operation task, and the step of retrieving the target operation ticket in the operation ticket database includes: Typical operation tickets are retrieved from the operation ticket database according to the name or keyword of the operation task, and the retrieved typical operation tickets are used as target operation tickets.

4. The one-key simulation intelligent error prevention method for substation according to claim 1, characterized in that: After the invoicing fails, the method further comprises: An error reminder is issued, and the switch device ID whose real-time device state is not equal to the initial device state is output to check the operation item corresponding to the switch device ID.

5. The one-key simulation intelligent error prevention method for substation according to claim 1, characterized in that: The maximum duration T of operation item i i for: T i =(x i -1)×t0,x i is the operation number of operation item i, and t0 is the preset duration.

6. The one-key simulation intelligent error prevention method for substation according to claim 1, characterized in that: The associated electrical device of an operation item is the electrical device connected to the switch device ID in the operation item.

7. The one-key simulation intelligent error prevention method for substation according to claim 1, characterized in that: In response to the operation sequence number of the operation item i being 1, the electrical state consistency of the operation item i is 1.

8. The one-key simulation intelligent error prevention method for substation according to claim 1, characterized in that: The process of obtaining the theoretical value of the electrical parameter includes: Perform equipment alignment on the wiring diagram in the simulation environment so that the simulated status of the switchgear and electrical equipment in the wiring diagram is the same as the real status; In a simulation environment, multiple operation items are executed in sequence according to the operation sequence number, and the electrical parameter simulation value of the associated electrical equipment after each operation item is executed is recorded, wherein the electrical parameter simulation value corresponds to the electrical parameter theoretical value.

9. The one-key simulation intelligent error prevention method for substation according to claim 1, characterized in that: The initial device state is the switch state of the switch device ID before executing the target operation ticket.

10. The one-key simulation intelligent error prevention method for substation according to claim 1, characterized in that: The switch device comprises a switch, a knife switch and a grounding knife switch.

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