Double confirmation method, device and equipment for position of switch based on protection information on-off value interaction mechanism

Abstract

The application relates to a switch position double-confirmation method, device and equipment based on a protection information on-off quantity interaction mechanism, which comprises the following steps: obtaining first switch position information of a bus side isolating switch through a bus differential protection device and transmitting the first switch position information to a protection information main station; obtaining second switch position information of the bus side isolating switch through a bus measurement and control device and transmitting the second switch position information to a dispatching control main station; comparing the first switch position information with the second switch position information to determine whether the switch positions are consistent, thereby realizing double confirmation of the switch position of the isolating switch. The method compares and judges the switch position information of the protection information main station and the switch position information of the dispatching control main station, realizes double confirmation of the switch position of the isolating switch, and solves the technical problem that the existing double-confirmation scheme of the switch position of the isolating switch in a substation has uncertainty and cannot achieve the double-confirmation effect.

Description

Technical Field

[0001] This application relates to the field of disconnector switch position confirmation technology, and in particular to a method, apparatus and equipment for dual confirmation of switch position based on protection information switching quantity interaction mechanism. Background Technology

[0002] The existing dual confirmation method for the position of disconnector switches in substations relies on the position of the first microswitch in the original electric mechanism as the primary criterion for transmission to the monitoring and control device. By adding a second microswitch, when the disconnector is closed or open, the mechanical structure drives the contacts of both microswitches to switch, and the sensor uploads the disconnector position signal to the receiving device, providing the monitoring and control device with a second criterion for the disconnector position, thus achieving dual confirmation. However, this dual confirmation method is ineffective if the monitoring and control device malfunctions or malfunctions, as both data acquisitions will fail. For example, the dual confirmation system for the position of disconnector switches in substations based on microswitches (application number 202021073621.X) requires an auxiliary node to be installed at each disconnector in each outgoing line bay connected to each busbar section, increasing hardware investment and maintenance workload. Furthermore, if the auxiliary contacts of the second microswitch are poorly maintained and data acquisition fails, the dual confirmation method will also fail.

[0003] The existing dual-confirmation method for the position of disconnect switches in substations can be based on the position of the first microswitch of the disconnect switch within the existing electric mechanism, which is transmitted to the monitoring and control device as the first criterion. Additionally, the position of the disconnect switch on the bus protection panel in the substation main control room is checked on-site to confirm its correctness, serving as the second criterion. While this dual-confirmation method eliminates the need for a second microswitch because the bus protection device already collects the position data of the disconnect switches connected to the bus, requiring personnel to check the bus protection panel in the substation main control room, it suffers from low efficiency. Summary of the Invention

[0004] This application provides a method, apparatus, and equipment for double confirmation of disconnector position based on a protection information switching quantity interaction mechanism, which is used to solve the technical problem that the existing double confirmation scheme for disconnector position in substations has uncertainty and cannot achieve the double confirmation effect.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] On the one hand, a method for double confirmation of disconnector position based on a protection information switching quantity interaction mechanism is provided and applied to a power data acquisition system. The power data acquisition system includes a bus differential protection device, a busbar monitoring and control device, a protection information master station, and a dispatch control master station. The bus differential protection device is connected to the protection information master station, and the busbar monitoring and control device is connected to the dispatch control master station. The protection information master station communicates with the dispatch control master station through a server. The method for double confirmation of disconnector position includes the following steps:

[0007] The bus differential protection device obtains the position information of the first disconnector of the bus-side disconnector and transmits the position information of the first disconnector to the main protection station.

[0008] The busbar monitoring and control device acquires the position information of the second disconnector of the busbar-side disconnector and transmits the position information of the second disconnector to the dispatch control master station.

[0009] The first disconnector position information is compared with the second disconnector position information to determine whether the disconnector positions are consistent, thereby achieving double confirmation of the disconnector position of the disconnector switch.

[0010] Preferably, the dual confirmation method for disconnector position based on the protection information switching quantity interaction mechanism further includes:

[0011] Obtain the device model association data between the information security master station and the scheduling control master station;

[0012] If the disconnector switch's disconnector state changes, the dispatch control master station obtains the disconnector state change information through the busbar monitoring and control device based on the disconnector state change; the dispatch control master station sends a change information request file to the information protection master station based on the disconnector state change.

[0013] The main station for information protection extracts the bus protection switch status data of the disconnecting switch from the bus differential protection device according to the change information request file. The main station for information protection generates a change information result file according to the bus protection switch status data and transmits the change information result file to the dispatch control main station.

[0014] The scheduling and control master station compares the change information of the disconnector state with the change information result file based on the equipment model association data to obtain a confirmation conclusion of the change in disconnector position.

[0015] Preferably, the content of obtaining the device model association data between the information security master station and the scheduling control master station includes:

[0016] Secondary equipment model data is obtained from the main station of the information security system, and primary equipment model data is obtained from the main station of the scheduling and control system in real time.

[0017] The primary equipment model data and the secondary equipment model data are associated to obtain equipment model association data.

[0018] Preferably, the dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism further includes: converting the disconnector state change information into a CIM file and storing it in the dispatch control master station.

[0019] Preferably, the dual confirmation method for switch position based on protection information switching quantity interaction mechanism further includes: the scheduling control master station sending the change information request file to the protection information master station via the SFTP protocol.

[0020] On the other hand, a dual-confirmation system for disconnector position based on a protection information switching quantity interaction mechanism is provided and applied to a power data acquisition system. The power data acquisition system includes a bus differential protection device, a bus measurement and control device, a protection information master station, and a dispatch control master station. The bus differential protection device is connected to the protection information master station, and the bus measurement and control device is connected to the dispatch control master station. The protection information master station communicates with the dispatch control master station through a server. The dual-confirmation system for disconnector position includes a first data acquisition module, a second data acquisition module, and a position confirmation module.

[0021] The first data acquisition module is used to acquire the first disconnector position information of the busbar side disconnector through the bus differential protection device and transmit the first disconnector position information to the main protection station;

[0022] The second data acquisition module is used to acquire the second disconnector position information of the bus-side disconnector through the bus measurement and control device and transmit the second disconnector position information to the dispatch control master station;

[0023] The position confirmation module is used to compare the first disconnector position information with the second disconnector position information to determine whether the disconnector positions are consistent, so as to achieve double confirmation of the disconnector position of the disconnector switch.

[0024] Preferably, the switch position double confirmation system based on the protection information switch quantity interaction mechanism further includes: an association module, a change request module, a result information acquisition module, and a double confirmation module;

[0025] The association module is used to obtain the device model association data between the information security master station and the scheduling control master station;

[0026] The change request module is used to obtain the change information of the disconnector switch status through the bus monitoring and control device based on the change of the disconnector switch status; the dispatch control master station sends a change information request file to the security master station based on the change of the disconnector switch status.

[0027] The result information acquisition module is used by the security information master station to extract the bus protection switch status data of the disconnecting switch from the bus differential protection device according to the change information request file, and the security information master station to generate a change information result file according to the bus protection switch status data and transmit the change information result file to the dispatch control master station.

[0028] The dual confirmation module is used by the scheduling and control master station to compare the switch status change information with the position change information result file based on the equipment model association data, and obtain a confirmation conclusion on the switch position change.

[0029] Preferably, the association module is further configured to obtain secondary equipment model data from the main station of the information security system and to obtain primary equipment model data from the main station of the scheduling and control system in real time; and to associate the primary equipment model data with the secondary equipment model data to obtain equipment model association data.

[0030] Preferably, the position change request module is further used by the scheduling control master station to send the position change information request file to the information protection master station via the SFTP protocol.

[0031] On the other hand, a terminal device is provided, including a processor and a memory;

[0032] The memory is used to store program code and transmit the program code to the processor;

[0033] The processor is configured to execute the aforementioned method for double confirmation of switch position based on the protection information switch quantity interaction mechanism, according to the instructions in the program code.

[0034] This method, device, and equipment for dual confirmation of disconnector position based on a protection information switching quantity interaction mechanism are applied to a power data acquisition system. The power data acquisition system includes a bus differential protection device, a busbar monitoring and control device, a protection and information master station, and a dispatch control master station. The bus differential protection device is connected to the protection and information master station, and the busbar monitoring and control device is connected to the dispatch control master station. The protection and information master station communicates with the dispatch control master station through a server. The dual confirmation method for disconnector position includes: obtaining the first disconnector position information of the busbar-side disconnector through the bus differential protection device and transmitting the first disconnector position information to the protection and information master station; obtaining the second disconnector position information of the busbar-side disconnector through the busbar monitoring and control device and transmitting the second disconnector position information to the dispatch control master station; comparing the first disconnector position information with the second disconnector position information to determine whether the disconnector positions are consistent, thus achieving dual confirmation of the disconnector position of the disconnector.

[0035] As can be seen from the above technical solutions, this application has the following advantages: The dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism compares and judges the disconnector position information of the protection information master station and the disconnector position information of the dispatch control master station to realize the dual confirmation of the disconnector position of the disconnector switch, which solves the technical problem that the existing dual confirmation scheme for the disconnector position of the disconnector switch in the substation has uncertainty and cannot achieve the dual confirmation effect.

[0036] The disconnector position dual confirmation system based on the protection information switch quantity interaction mechanism realizes the confirmation of the disconnector position through the first data acquisition module, the second data acquisition module and the position confirmation module. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a flowchart of the steps of the dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism described in the embodiments of this application;

[0039] Figure 2 This is a schematic diagram of the framework of the dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism described in the embodiments of this application;

[0040] Figure 3 This is a schematic diagram of the power data acquisition system in the dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism described in the embodiments of this application;

[0041] Figure 4 This is a schematic diagram of the framework of the dual confirmation system for disconnector position based on the protection information switch quantity interaction mechanism described in the embodiments of this application;

[0042] Figure 5 This is a schematic diagram of the terminal device described in an embodiment of this application. Detailed Implementation

[0043] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0045] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0046] This application provides a method, apparatus, and device for double confirmation of disconnector position based on a protection information switching quantity interaction mechanism, which solves the technical problem that the existing double confirmation scheme for the position of disconnector switches in substations has uncertainty and cannot achieve the double confirmation effect.

[0047] Example 1:

[0048] Figure 1 This is a flowchart illustrating the steps of the dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism described in this application embodiment. Figure 2 This is a schematic diagram of the framework of the dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism described in the embodiments of this application. Figure 3 This is a schematic diagram of the power data acquisition system in the dual confirmation method for disconnector position based on the protection information switching quantity interaction mechanism described in the embodiments of this application.

[0049] like Figure 3 As shown in the figure, this application provides a method for double confirmation of disconnector position based on the protection information switch quantity interaction mechanism, which is applied to a power data acquisition system. The power data acquisition system includes a bus differential protection device, a bus measurement and control device, a protection information master station and a dispatch control master station. The bus differential protection device is connected to the protection information master station, the bus measurement and control device is connected to the dispatch control master station, and the protection information master station communicates with the dispatch control master station through a server.

[0050] It should be noted that the power data acquisition system uses the bus differential protection device and the bus measurement and control device as data sources. The protection information is sent to the protection and information master station and the operation measurement information is sent to the dispatch control master station through independent channels. The protection and information master station and the dispatch control master station achieve information exchange under secure isolation conditions through an intermediate server. This ensures independent transmission channels for protection information and dispatch information, and also realizes the integration and sharing of the two types of data at the dispatch level, meeting the power system's dual data acquisition needs for bus protection and operation monitoring.

[0051] In this embodiment, the bus differential protection device is used to collect relevant electrical quantity data of bus differential protection and perform protection logic judgments. The bus measurement and control device is used to collect measurement and control data such as bus voltage, current, and switch status. The data transmission and control master station is used to collect data information sent by the bus differential protection device for data processing and forwarding. The dispatch control master station is used to collect real-time operating data sent by the bus measurement and control device to support dispatch decisions and remote control.

[0052] It should be noted that the bus differential protection device can establish a direct connection with the main protection station via an internal communication network (such as fiber optic Ethernet or IEC61850 protocol communication). The bus differential protection device can transmit protection action information, differential current data, and switch change information (such as the position information of the first disconnector) to the main protection station in real time. The main protection station parses, stores, and forwards the received data. The bus monitoring and control device establishes a direct connection with the dispatch control main station via a remote communication channel (such as the dispatch data network or IEC104 protocol). The bus monitoring and control device can transmit real-time operating data such as bus voltage, current, active and reactive power, and switch status (such as disconnector position information) to the dispatch control main station. The dispatch control main station uses this data to achieve real-time monitoring and remote control operation of the bus operating status.

[0053] In other embodiments, the bus differential protection device and the main control station communicate using the IEC 61850 GOOSE / MMS or IEC 60870-5-104 protocol; the bus measurement and control device and the dispatch control main station communicate using the IEC 60870-5-104 protocol; and the main control station and the dispatch control main station communicate via a server using the IEC 61850 or IEC 60870-5-104 protocol.

[0054] In this embodiment, the security information master station and the scheduling control master station are not directly connected, but communicate through an intermediate server. The server is deployed on the security information master station side or in a network security zone shared by both parties, and undertakes data relay, protocol conversion and security isolation functions. The security information master station sends the sorted data information to the scheduling control master station after it is packaged by the server. The scheduling control master station can also transmit real-time operation data to the security information master station through the server.

[0055] It should be noted that the protection information master station and the dispatch control master station achieve logical isolation between Security Zone I and Security Zone III through a server, and the server is equipped with forward and reverse physical isolation devices. In other embodiments, forward and reverse isolation devices are deployed on both sides of the server to ensure that protection information and dispatch information can interact under the premise of secure isolation. The bus differential protection device, bus measurement and control device, protection information master station, and dispatch control master station are all connected to GPS / BeiDou time synchronization signals to ensure that the data timestamps of the power data acquisition system are consistent.

[0056] like Figure 3 As shown in the embodiment of this application, the power system main grid model information has the characteristics of low change frequency, large amount of data content, and relatively complex structure, so it is advisable to use file-based interaction of the model; intermediate servers are set up between the master stations, wherein the dispatch control master station OCS <—> intermediate server and intermediate server <—> information protection master station both use the SFTP protocol to communicate; the dispatch control master station OCS pushes the primary equipment model data to the intermediate server via the SFTP protocol.

[0057] like Figure 1 and Figure 2 As shown in the figure, this application provides a method for double confirmation of switch position based on protection information switching quantity interaction mechanism, including the following steps:

[0058] S1. Obtain the position information of the first disconnector of the busbar side disconnector through the bus differential protection device and transmit the position information of the first disconnector to the main station of the protection and information system.

[0059] It should be noted that in step S1, the first disconnector position information of the bus-side disconnector is collected by the bus differential protection device and stored in the protection master station to provide data for the subsequent double confirmation of the disconnector position. In this embodiment, the first disconnector position information includes the open or closed position of the bus-side disconnector of each branch outgoing line bay connected to the bus differential protection device. The bus differential protection device aggregates the first disconnector position information through the protection substation and transmits it to the protection master station via the dispatch data network.

[0060] In the embodiments of this application, step S1 can be understood as the bus differential protection device connecting to the auxiliary contacts of the bus-side disconnector via hard wiring, acquiring the closing / opening position status data of the first disconnector in real time through a cyclic scanning method to form the first disconnector position information. After internal encoding and encapsulation, it is actively transmitted to the security information master station via the station Ethernet using the IEC61850MMS or IEC104 protocol. After receiving the data, the security information master station performs parsing, verification, storage, and display, realizing a complete closed loop from field acquisition to master station monitoring of the first disconnector position information, providing reliable remote signaling data support for double confirmation of disconnector position.

[0061] It should be noted that during the process of acquiring the position information of the first disconnector of the bus-side disconnector through the bus differential protection device, the auxiliary contacts (normally open / normally closed contacts) of the bus-side disconnector are connected to the input acquisition terminal of the input acquisition module of the bus differential protection device through hard wiring. The input acquisition module of the bus differential protection device reads the input status (such as on / off status) of the auxiliary contact in real time in a cyclic scanning manner (the scanning period is generally no more than 20ms). The bus differential protection device performs logical mapping according to the input status. The closing of the auxiliary contact is determined as closing, and the opening of the auxiliary contact is determined as opening, thereby generating the position information of the first disconnector. The bus differential protection device encapsulates the position information of the first disconnector into a standard data frame according to a preset encoding rule for data transmission. The data frame contains the disconnector number, position status code (such as 01 representing closing and 00 representing opening), timestamp, and data check code, etc.

[0062] In this embodiment, the bus differential protection device establishes a TCP / IP network connection with the main protection station through an Ethernet switch within the station. It uses the IEC61850MMS (Manufacturing Message Specification) protocol or the IEC60870-5-104 protocol for data transmission. The first disconnector position information is mainly transmitted via change (remote signaling change), that is, it is actively reported immediately when the disconnector status changes. At the same time, it is supplemented by periodic transmission (remote signaling general call), and the disconnector position is fully refreshed periodically (e.g., every 5 seconds) to ensure data integrity.

[0063] S2. Obtain the position information of the second disconnector of the bus-side disconnector through the bus monitoring and control device and transmit the position information of the second disconnector to the dispatch control master station.

[0064] It should be noted that in step S2, the second disconnector position information of the bus-side disconnector is collected by the busbar monitoring and control device and stored in the dispatch control master station to provide data for the subsequent double confirmation of the disconnector position. In this embodiment, the second disconnector position information includes the open or closed position of the busbar-side disconnector of each branch outgoing line bay. The busbar monitoring and control device aggregates the second disconnector position information via a remote motor and transmits it to the dispatch control master station through the dispatch data network.

[0065] In this embodiment, step S2 can be understood as the busbar monitoring and control device connecting to the auxiliary contact of the second disconnector on the busbar side via hard-wired connection, acquiring the open / closed position status of the second disconnector in real time through cyclic scanning, encapsulating it into an IEC104 remote control data frame through internal encoding, and actively uploading it to the dispatch control master station through the dispatch data network; after receiving it, the dispatch control master station performs parsing, verification, storage, display, and linkage logic judgment, realizing a complete closed loop from field acquisition to dispatch monitoring of the second disconnector position information, providing reliable remote signaling data support for dispatchers to grasp the real-time status of the busbar-side disconnector, perform remote control operation interlocking, and cross-verify with the information of the first disconnector.

[0066] It should be noted that the auxiliary contacts (normally open / normally closed contacts) of the second disconnector on the busbar side are connected to the input acquisition terminal of the input acquisition module of the busbar monitoring and control device through hard wiring. The input acquisition module of the busbar monitoring and control device reads the input status (such as on / off status) of the auxiliary contact in real time in a cyclic scanning manner (the scanning period is generally no more than 100ms). The busbar monitoring and control device performs logical mapping based on the input status. For example, if the auxiliary contact is closed, it is determined as closed; if the auxiliary contact is open, it is determined as open. This generates the position information of the second disconnector. The busbar monitoring and control device encapsulates the position information of the second disconnector into a standard remote control data frame according to the preset encoding rules. The data frame contains the disconnector number, position status code (such as 1 for closed and 0 for open), quality flag bit, timestamp, and CRC check code, etc.

[0067] In this embodiment, the bus monitoring and control device establishes a communication connection with the dispatch control master station through a dispatch data network (such as a fiber optic leased line or MSTP network), and uses the IEC 60870-5-104 remote control protocol for data transmission. The second disconnector position information is mainly transmitted via change (remote signaling change), that is, when the disconnector status changes, it is actively reported immediately; at the same time, it is supplemented by periodic transmission (remote signaling general call), and the disconnector position is fully refreshed periodically (such as every 3 to 5 seconds) to ensure the real-time performance and integrity of the dispatch master station data.

[0068] S3. Compare the position information of the first disconnector with the position information of the second disconnector to determine whether the disconnector positions are consistent, thereby achieving double confirmation of the disconnector position of the disconnector switch.

[0069] It should be noted that in step S3, the disconnector position is double-confirmed by checking whether the disconnector position information obtained from the main station in step S1 and the disconnector position information obtained from the dispatch control main station in step S2 are consistent. In this embodiment, double-confirmation of the disconnector position means that the disconnector position information in the main station and the disconnector position information in the dispatch control main station are consistent, that is, the disconnector's open position corresponds to the disconnector's open position, or the disconnector's closed position corresponds to the disconnector's closed position.

[0070] In this embodiment, step S3 can be understood as using the first disconnector position information (from the main data transmission and control station) and the second disconnector position information (from the dispatch control station) as dual data sources, and comparing the two sets of position information in real time bit by bit using the disconnector number as the matching key, through relaying via an intermediate server or actively pulling from the dispatch control station. If the comparison matches, the disconnector position is determined to have passed dual confirmation, allowing subsequent remote control and operation; if the comparison does not match or data is missing, the dual confirmation is determined to have failed, an alarm is immediately triggered, and remote control operation is blocked. This achieves dual-source independent acquisition, cross-comparison confirmation, and automatic blocking of disconnector positions, effectively preventing misjudgment of disconnector positions due to single device failure or false signal alarms, and ensuring the safety and reliability of power system bus operation.

[0071] In other embodiments, step S3 can involve the scheduling control master station periodically (e.g., every 5 seconds) sending a data request to the security information master station via the server. The request content is the location information of the first disconnector with a specified disconnector number. After receiving the request, the security information master station sends the location information of the first disconnector back to the scheduling control master station via the server. The scheduling control master station locally compares the received location information of the first disconnector with the location information of the second disconnector stored in its own memory, and outputs the comparison result. If the comparison result is consistent, the disconnector status is updated to double confirmation; if the comparison result is inconsistent, an alarm is triggered.

[0072] In this embodiment of the application, the disconnector position dual confirmation method based on the protection information switch quantity interaction mechanism realizes the dual confirmation of the disconnector position of the disconnector switch through the disconnector position information of the protection information master station and the disconnector position information of the scheduling control master station.

[0073] It should be noted that before executing remote closing / opening commands for the bus-side disconnector, the dispatch control master station checks the double confirmation result using the disconnector position double confirmation method based on the protection information switch quantity interaction mechanism. If the double confirmation fails (inconsistency or pending confirmation), the remote closing / opening command is automatically blocked and not executed. The dispatch control master station immediately pushes a red alarm screen to the dispatcher workstation and simultaneously pushes an alarm event to the protection information master station, which records the event sequence. In this embodiment, during the remote closing / opening operation of the bus-side disconnector, the double confirmation comparison can be automatically performed every fixed period (e.g., every 30 seconds) using the disconnector position double confirmation method based on the protection information switch quantity interaction mechanism, without manual intervention, ensuring that the disconnector position is always under double confirmation monitoring.

[0074] This application provides a method for dual confirmation of disconnector position based on a protection information switching quantity interaction mechanism, applied to a power data acquisition system. The power data acquisition system includes a bus differential protection device, a busbar monitoring and control device, a protection information master station, and a dispatch control master station. The bus differential protection device is connected to the protection information master station, and the busbar monitoring and control device is connected to the dispatch control master station. The protection information master station communicates with the dispatch control master station through a server. The method for dual confirmation of disconnector position includes: obtaining the first disconnector position information of the busbar-side disconnector through the bus differential protection device and transmitting the first disconnector position information to the protection information master station; obtaining the second disconnector position information of the busbar-side disconnector through the busbar monitoring and control device and transmitting the second disconnector position information to the dispatch control master station; comparing the first disconnector position information with the second disconnector position information to determine whether the disconnector positions are consistent, thus achieving dual confirmation of the disconnector position. This dual-confirmation method for disconnector position based on the protection information switching quantity interaction mechanism compares and judges the disconnector position information of the protection information master station and the disconnector position information of the dispatch control master station to achieve dual confirmation of the disconnector position of the disconnector. It solves the technical problem that the existing dual-confirmation scheme for disconnector position in substations has uncertainty and cannot achieve the dual-confirmation effect.

[0075] like Figure 1 and Figure 2 As shown in one embodiment of this application, the dual confirmation method for switch position based on protection information switch quantity interaction mechanism further includes:

[0076] S4. Obtain the device model association data between the main station of the information security system and the main station of the scheduling control system.

[0077] It should be noted that in step S4, communication is established between the protection information master station and the dispatch control master station through a server. The protection information master station periodically obtains the latest primary equipment model data in CIM format from the dispatch control master station's OCS, parses the primary equipment model data, and associates it with the existing protection secondary equipment model data in the protection information master station to obtain equipment model association data, providing data for subsequent steps. In this embodiment, equipment model association data refers to the mapping data that establishes a one-to-one correspondence between the secondary equipment model of the protection information master station and the primary equipment model of the dispatch control master station. For example, when double confirmation is required for the same disconnecting switch, an accurate correspondence can be established between the two master stations (such as the protection information master station and the dispatch control master station) with a unified equipment identifier, ensuring that the location information of the same equipment is being compared, rather than different equipment.

[0078] In this embodiment, step S4 can be understood as the server simultaneously sending acquisition requests to both the information security master station and the dispatch control master station. The two master stations extract key fields such as the device ID, device name, and associated bay of the disconnector from their respective device model databases and report them to the server via the safety isolation device. The server uses the device name and associated bay as matching keys to perform one-to-one association matching of the data from both sides, generating an association data table containing the correspondence between primary and secondary device IDs as device model association data. This table is then distributed back to both master stations as local cache, ensuring that the association data always remains consistent with the actual equipment on site, providing a reliable basis for accurate comparison of the disconnector position during subsequent double confirmation.

[0079] It should be noted that, in obtaining the associated data of the equipment model, if the names of the 10kV I bus No. 1 disconnector switch of the main station and the 110kV I bus No. 1 disconnector switch of the dispatch control main station are completely identical, they are initially determined to be the same equipment; if there are slight differences in the equipment names, further comparison is made to see if the electrical bays to which they belong are consistent, and double verification is performed; after a successful match, an associated data record is generated and written to the associated database table of the server, in the format: {Secondary Equipment ID, Secondary Equipment ID, Equipment Name, Electrical Bay to which it belongs, Association Type, Association Status}.

[0080] In this embodiment of the application, the content of obtaining the device model association data between the information security master station and the scheduling control master station includes:

[0081] Secondary equipment model data is obtained from the main station of the information security system, and primary equipment model data is obtained in real time from the main station of the dispatch control system;

[0082] The primary equipment model data is associated with the secondary equipment model data to obtain the equipment model association data.

[0083] It should be noted that the dispatch control master station (OCS) completes the primary equipment modeling to obtain primary equipment model data. This data includes substation name, voltage zone, electrical bays, and bay elements. It also connects the disconnector position information collected by the busbar monitoring and control device to the electrical bays or bay elements, forming a primary equipment model data file. The protection master station uses this primary equipment model data file from the dispatch control master station (OCS) as a framework. The electrical bays or bay elements are connected to the busbar differential protection device and its collected datasets. The naming convention for the dataset information point table of the protection master station is determined so that when the protection information substation is implemented, the remote signaling name of the busbar protection disconnector position is instantiated into a specific primary equipment name with a corresponding switch number for easy identification and application of this type of information. Equipment model association data is formed between the primary equipment model and the secondary equipment model, realizing dual-source model association; this data is provided to the dispatch control master station (OCS) for further use. Specifically, the primary equipment model in the dispatch control master station (OCS) establishes relationships such as region-area-substation-voltage level-line, switch, main transformer, disconnector, and electrical bays protected by the busbar differential protection device. For example, in the #1 main transformer bay of a 110kV substation, the corresponding protection is that the #1 main transformer uses protection set A, while the #1 main transformer uses protection set B. Equipment model association data refers to the file that records the corresponding association between the primary equipment model of the dispatch control system (OCS) and the secondary equipment model of the information protection master station.

[0084] S5. If the disconnector switch's disconnector status changes, the dispatch control master station obtains the disconnector status change information through the busbar monitoring and control device based on the disconnector status change; the dispatch control master station sends a change information request file to the security information master station based on the disconnector status change.

[0085] It should be noted that in step S5, i.e., when the disconnector switch status changes, two steps are taken: first, the disconnector switch status change information is obtained from the busbar monitoring and control device; second, a change information request file is sent to the main dispatch control station based on the disconnector switch status change. In this embodiment, the disconnector switch status change information is converted into a CIM file and stored in the dispatch control station. Specifically, when the disconnector switch status changes, the information collected by the main dispatch control station is converted into dispatch control station OCS equipment information in the CIM file through the association relationship of the equipment model association data, so that the dispatch control station OCS can identify it. The change information request file refers to the disconnector switch status request file, which is generated by the dispatch control station OCS. The change information request file is represented in XML file format, and an example of the specific format content of the change information request file is as follows:

[0086]

[0087] In this embodiment, step S5 can be understood as follows: triggered by a change in the disconnector switch status, the dispatch control master station actively acquires (or polls to detect) the switch status change information through the busbar monitoring and control device and updates the local real-time database. Then, based on the updated switch number and change timestamp, a change information request file is automatically generated and sent to the security information master station. After the change information request file is delivered to the security information master station via the server and security isolation device, the security information master station retrieves and sends back the first switch position change information within a specified time range. Upon receiving the response, the dispatch control master station compares the first switch position information with its own second switch position information to complete a double confirmation judgment.

[0088] It should be noted that the dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism achieves closed-loop management through step S5, which includes automatic perception of state changes, active acquisition of position change information, and cross-verification of dual-source data, ensuring the timeliness and accuracy of the dual confirmation of disconnector position.

[0089] In this embodiment of the application, the dual confirmation method for switch position based on the protection information switch quantity interaction mechanism includes: the dispatch control master station sends the change information request file to the protection information master station via the SFTP protocol.

[0090] S6. The main station of the security information system extracts the bus protection switch status data of the disconnecting switch from the bus differential protection device according to the change information request file. The main station of the security information system generates a change information result file based on the bus protection switch status data and transmits the change information result file to the dispatch control main station.

[0091] It should be noted that in step S6, after the main station receives the change information request file, it parses and processes it, finds the disconnector corresponding to the change in the disconnector's status, extracts the bus protection switch status data collected by the bus differential protection device for that disconnector, and then generates a change information result file based on the latest bus protection switch status data of that disconnector according to the corresponding format. This result file is then sent back to the dispatch control main station (OCS) via the SFTP protocol. An example of the specific format of the change information result file is as follows:

[0092]

[0093] In this embodiment, step S6 can be understood as follows: the main station receives a change information request file from the dispatch control main station as a trigger condition. The main station first parses the request file, locates the corresponding bus differential protection device based on the disconnector number, and sends a switch status data extraction command to the bus differential protection device. The bus differential protection device retrieves and sends back the bus protection switch position status data of the disconnector within a specified time range. After verifying the integrity of the sent data, the main station defines it as bus protection switch status data (i.e., the first disconnector position information), and generates a change information result file containing fields such as disconnector number, position status, status change timestamp, and data source identifier. The change information result file is transmitted to the dispatch control main station via security isolation and server for the dispatch control main station to perform dual-source cross-comparison with its own second disconnector position information.

[0094] It should be noted that the disconnector position double confirmation method based on the protection information switch quantity interaction mechanism realizes closed-loop management through step S5, which includes request-driven extraction, direct tracing of bus differential protection, and structured return of result files. This ensures that the dispatch control master station can obtain the first disconnector position information from the protection information master station in a timely manner, providing accurate and reliable data support for the final comparison of disconnector position double confirmation.

[0095] S7. The dispatch control master station compares the switch status change information with the displacement information result file based on the equipment model association data to obtain a confirmation conclusion on the switch position change.

[0096] It should be noted that the dispatch control master station (OCS) compares the disconnector status change information with the position change information result file based on the equipment model association data to obtain a confirmation conclusion of the disconnector position change, and displays the confirmation conclusion on the operation interface of the dispatch control master station. In this embodiment, dispatch monitoring personnel can arrange the next grid operation based on the confirmation conclusion of the double confirmation of the bus disconnector displayed on the operation interface of the dispatch control master station. The confirmation conclusion means that the disconnector status change information and the disconnector position information corresponding to the position change information result file are consistent, which indicates that the disconnector position confirmation is complete; or it means that the disconnector status change information and the disconnector position information corresponding to the position change information result file are inconsistent, which indicates that the disconnector position confirmation is not complete, and the disconnector position confirmation process is repeated according to steps S5 to S7.

[0097] In the embodiments of this application, step S7 can be understood as follows: after receiving the change information result file returned by the protection information master station, firstly, extract the change information of the local disconnector status (second disconnector position information) from the local real-time database, then parse the status data of the opposite bus protection switch (first disconnector position information) from the result file, then confirm that the two describe the same equipment by using the equipment model association data as a bridge, and finally perform a triple bit-by-bit comparison of disconnector number, position status, and timestamp. Based on the comparison results, generate four confirmation conclusions: double confirmation passed, single-sided confirmation, double confirmation failed, and association anomaly, and write the conclusions into the database, push them to the operation interface, and synchronously send them back to the protection information master station. This disconnector position double confirmation method based on the protection information switch quantity interaction mechanism realizes closed-loop management of dual-source data cross-verification, precise equipment association positioning, and hierarchical output of confirmation conclusions, ensuring that the dispatch control master station can accurately determine the true position of the disconnector before performing remote control operations, effectively preventing misoperation caused by single-sided data errors.

[0098] In the embodiments of this application, the dual confirmation method for disconnector position based on the protection information switch quantity interaction mechanism realizes dual confirmation of disconnector position through the dual-source model association method, interface method and dual-source data interaction of the secondary equipment model of the protection information master station and the primary equipment model of the scheduling control master station.

[0099] Example 2:

[0100] Figure 4 This is a schematic diagram of the framework of the dual confirmation system for disconnector position based on the protection information switching quantity interaction mechanism described in the embodiments of this application.

[0101] like Figure 4 As shown, this application embodiment provides a dual confirmation system for disconnector position based on a protection information switch quantity interaction mechanism, which is applied to a power data acquisition system. The power data acquisition system includes a bus differential protection device, a bus measurement and control device, a protection information master station, and a dispatch control master station. The bus differential protection device is connected to the protection information master station, the bus measurement and control device is connected to the dispatch control master station, and the protection information master station communicates with the dispatch control master station through a server.

[0102] It should be noted that the power data acquisition system uses the bus differential protection device and the bus measurement and control device as data sources. The protection information is sent to the protection and information master station and the operation measurement information is sent to the dispatch control master station through independent channels. The protection and information master station and the dispatch control master station achieve information exchange under secure isolation conditions through an intermediate server. This ensures independent transmission channels for protection information and dispatch information, and also realizes the integration and sharing of the two types of data at the dispatch level, meeting the power system's dual data acquisition needs for bus protection and operation monitoring.

[0103] In this embodiment, the bus differential protection device is used to collect relevant electrical quantity data of bus differential protection and perform protection logic judgments. The bus measurement and control device is used to collect measurement and control data such as bus voltage, current, and switch status. The data transmission and control master station is used to collect data information sent by the bus differential protection device for data processing and forwarding. The dispatch control master station is used to collect real-time operating data sent by the bus measurement and control device to support dispatch decisions and remote control.

[0104] It should be noted that the bus differential protection device can establish a direct connection with the main protection station via an internal communication network (such as fiber optic Ethernet or IEC61850 protocol communication). The bus differential protection device can transmit protection action information, differential current data, and switch change information (such as the position information of the first disconnector) to the main protection station in real time. The main protection station parses, stores, and forwards the received data. The bus monitoring and control device establishes a direct connection with the dispatch control main station via a remote communication channel (such as the dispatch data network or IEC104 protocol). The bus monitoring and control device can transmit real-time operating data such as bus voltage, current, active and reactive power, and switch status (such as disconnector position information) to the dispatch control main station. The dispatch control main station uses this data to achieve real-time monitoring and remote control operation of the bus operating status.

[0105] In other embodiments, the bus differential protection device and the main control station communicate using the IEC 61850 GOOSE / MMS or IEC 60870-5-104 protocol; the bus measurement and control device and the dispatch control main station communicate using the IEC 60870-5-104 protocol; and the main control station and the dispatch control main station communicate via a server using the IEC 61850 or IEC 60870-5-104 protocol.

[0106] In this embodiment, the security information master station and the scheduling control master station are not directly connected, but communicate through an intermediate server. The server is deployed on the security information master station side or in a network security zone shared by both parties, and undertakes data relay, protocol conversion and security isolation functions. The security information master station sends the sorted data information to the scheduling control master station after it is packaged by the server. The scheduling control master station can also transmit real-time operation data to the security information master station through the server.

[0107] It should be noted that the protection information master station and the dispatch control master station achieve logical isolation between Security Zone I and Security Zone III through a server, and the server is equipped with forward and reverse physical isolation devices. In other embodiments, forward and reverse isolation devices are deployed on both sides of the server to ensure that protection information and dispatch information can interact under the premise of secure isolation. The bus differential protection device, bus measurement and control device, protection information master station, and dispatch control master station are all connected to GPS / BeiDou time synchronization signals to ensure that the data timestamps of the power data acquisition system are consistent.

[0108] In this embodiment, the power system main grid model information has characteristics such as low change frequency, large amount of data content, and relatively complex structure, so it is advisable to use file-based interaction of the model; intermediate servers are set up between the master stations, wherein the dispatch control master station OCS <—> intermediate server and intermediate server <—> information protection master station both use the SFTP protocol for communication; the dispatch control master station OCS pushes the primary equipment model data to the intermediate server via the SFTP protocol.

[0109] In this embodiment of the application, the dual confirmation system for switch position based on protection information switching quantity interaction mechanism includes a first data acquisition module 10, a second data acquisition module 20 and a position confirmation module 30;

[0110] The first data acquisition module 10 is used to acquire the first disconnector position information of the bus-side disconnector through the bus differential protection device and transmit the first disconnector position information to the main station of the protection and information system.

[0111] The second data acquisition module 20 is used to acquire the position information of the second disconnector of the bus-side disconnector through the bus measurement and control device and transmit the position information of the second disconnector to the dispatch control master station.

[0112] The position confirmation module 30 is used to compare the position information of the first disconnect switch with the position information of the second disconnect switch to determine whether the positions of the disconnect switches are consistent, so as to realize the double confirmation of the disconnect switch position.

[0113] It should be noted that the content of the modules in the device of Embodiment 2 has already been described in the steps of the method of Embodiment 1, and the content of the disconnector position dual confirmation system module based on the protection information switch quantity interaction mechanism will not be described again in this embodiment. In this embodiment, the disconnector position dual confirmation system based on the protection information switch quantity interaction mechanism realizes the confirmation of the disconnector position of the disconnector switch through the first data acquisition module, the second data acquisition module, and the position confirmation module.

[0114] In the first data acquisition module 10 of this application embodiment, the first disconnector position information of the bus-side disconnector is collected by the bus differential protection device and stored in the protection master station to provide data for the subsequent double confirmation of disconnector position. The first disconnector position information includes the open or closed position of the bus-side disconnector of each branch outgoing line bay connected to the bus differential protection device. The bus differential protection device summarizes the first disconnector position information through the protection substation and transmits it to the protection master station via the dispatch data network. In this embodiment, the bus differential protection device connects to the auxiliary contacts of the bus-side disconnector through hard wiring and acquires the closed / open position status data of the first disconnector in real time in a cyclic scanning manner to form the first disconnector position information. After internal encoding and encapsulation, it is actively sent to the protection master station via the station Ethernet using the IEC61850MMS or IEC104 protocol. After receiving the data, the protection master station parses, verifies, stores, and displays it, realizing a complete closed loop from field acquisition to master station monitoring of the first disconnector position information, providing reliable remote signaling data support for double confirmation of disconnector position.

[0115] It should be noted that during the process of acquiring the position information of the first disconnector of the bus-side disconnector through the bus differential protection device, the auxiliary contacts (normally open / normally closed contacts) of the bus-side disconnector are connected to the input acquisition terminal of the input acquisition module of the bus differential protection device through hard wiring. The input acquisition module of the bus differential protection device reads the input status (such as on / off status) of the auxiliary contact in real time in a cyclic scanning manner (the scanning period is generally no more than 20ms). The bus differential protection device performs logical mapping according to the input status. The closing of the auxiliary contact is determined as closing, and the opening of the auxiliary contact is determined as opening, thereby generating the position information of the first disconnector. The bus differential protection device encapsulates the position information of the first disconnector into a standard data frame according to a preset encoding rule for data transmission. The data frame contains the disconnector number, position status code (such as 01 representing closing and 00 representing opening), timestamp, and data check code, etc.

[0116] In this embodiment, the bus differential protection device establishes a TCP / IP network connection with the main protection station through an Ethernet switch within the station. It uses the IEC61850MMS (Manufacturing Message Specification) protocol or the IEC60870-5-104 protocol for data transmission. The first disconnector position information is mainly transmitted via change (remote signaling change), that is, it is actively reported immediately when the disconnector status changes. At the same time, it is supplemented by periodic transmission (remote signaling general call), and the disconnector position is fully refreshed periodically (e.g., every 5 seconds) to ensure data integrity.

[0117] In the second data acquisition module 20 of this application embodiment, the second disconnector position information of the bus-side disconnector is collected by the bus monitoring and control device, and the second disconnector position information is stored in the dispatch control master station to provide data for subsequent double confirmation of disconnector position. The second disconnector position information includes the open or closed position of the bus-side disconnector of each branch outgoing line bay. The bus monitoring and control device aggregates the second disconnector position information via a remote motor and transmits it to the dispatch control master station through the dispatch data network. In this embodiment, the busbar monitoring and control device connects to the auxiliary contacts of the second disconnector on the busbar side via hard-wiring. It acquires the open / closed position status of the second disconnector in real time through a cyclic scanning method. After being internally encoded and encapsulated into an IEC104 remote control data frame, it is actively sent to the dispatch control master station through the dispatch data network. After receiving the data, the dispatch control master station performs parsing, verification, storage, display, and linkage logic judgment, realizing a complete closed loop from field acquisition to dispatch monitoring of the second disconnector position information. This provides reliable remote signaling data support for dispatchers to grasp the real-time status of the busbar-side disconnector, execute remote control operation interlocking, and cross-verify with the information of the first disconnector.

[0118] It should be noted that the auxiliary contacts (normally open / normally closed contacts) of the second disconnector on the busbar side are connected to the input acquisition terminal of the input acquisition module of the busbar monitoring and control device through hard wiring. The input acquisition module of the busbar monitoring and control device reads the input status (such as on / off status) of the auxiliary contact in real time in a cyclic scanning manner (the scanning period is generally no more than 100ms). The busbar monitoring and control device performs logical mapping based on the input status. For example, if the auxiliary contact is closed, it is determined as closed; if the auxiliary contact is open, it is determined as open. This generates the position information of the second disconnector. The busbar monitoring and control device encapsulates the position information of the second disconnector into a standard remote control data frame according to the preset encoding rules. The data frame contains the disconnector number, position status code (such as 1 for closed and 0 for open), quality flag bit, timestamp, and CRC check code, etc.

[0119] In this embodiment, the bus monitoring and control device establishes a communication connection with the dispatch control master station through a dispatch data network (such as a fiber optic leased line or MSTP network), and uses the IEC 60870-5-104 remote control protocol for data transmission. The second disconnector position information is mainly transmitted via change (remote signaling change), that is, when the disconnector status changes, it is actively reported immediately; at the same time, it is supplemented by periodic transmission (remote signaling general call), and the disconnector position is fully refreshed periodically (such as every 3 to 5 seconds) to ensure the real-time performance and integrity of the dispatch master station data.

[0120] In the position confirmation module 30 of this application embodiment, the first data acquisition module 10 and the second data acquisition module 20 obtain whether the disconnector position information of the main station and the dispatch control main station are consistent, thereby realizing the dual confirmation of the disconnector position of the disconnector. Dual confirmation of the disconnector position means that the disconnector position information in the main station and the disconnector position information in the dispatch control main station are consistent, that is, the disconnector's open position corresponds to the disconnector's open position, or the disconnector's closed position corresponds to the disconnector's closed position. In this embodiment, the first disconnector position information (from the main station) and the second disconnector position information (from the dispatch control main station) are used as dual data sources. Through intermediate server relay or active retrieval by the dispatch control main station, the two sets of position information are compared in real time, position by position, using the disconnector number as the matching key. If the comparison is consistent, the position of the disconnector is deemed to have passed the double confirmation, allowing subsequent remote control and operation; if the comparison is inconsistent or the data is missing, the double confirmation is deemed to have failed, an alarm is immediately triggered and remote control operation is blocked. This enables dual-source independent acquisition, cross-comparison confirmation, and automatic blocking of abnormalities for the position of the disconnector, effectively preventing misjudgment of the disconnector position due to single device failure or false signal alarm, and ensuring the safety and reliability of power system bus operation.

[0121] It should be noted that the location confirmation module 30 can periodically (e.g., every 5 seconds) send a data recall request to the security information master station via the server through the scheduling control master station. The request content is the location information of the first disconnector with a specified disconnector number. After receiving the request, the security information master station sends the location information of the first disconnector back to the scheduling control master station via the server. The scheduling control master station compares the received location information of the first disconnector with the location information of the second disconnector stored in its own database, and outputs the comparison result. If the comparison result is consistent, the disconnector status is updated to double confirmation; if the comparison result is inconsistent, an alarm is triggered.

[0122] In this embodiment of the application, the switch position double confirmation system based on the protection information switch quantity interaction mechanism further includes: an association module 40, a change request module 50, a result information acquisition module 60, and a double confirmation module 70;

[0123] The association module 40 is used to obtain the device model association data between the information security master station and the dispatch control master station;

[0124] The change request module 50 is used to obtain the change information of the disconnector switch status according to the change of disconnector switch status. The dispatch control master station obtains the disconnector status change information through the bus monitoring and control device according to the change of disconnector status. The dispatch control master station sends a change information request file to the security information master station according to the change of disconnector status.

[0125] The result information acquisition module 60 is used for the main station to extract the bus protection switch status data of the disconnecting switch from the bus differential protection device according to the change information request file, and the main station to generate the change information result file according to the bus protection switch status data and transmit the change information result file to the dispatch control main station.

[0126] The dual confirmation module 70 is used by the scheduling and control master station to compare the switch status change information with the displacement information result file based on the equipment model association data to obtain a confirmation conclusion on the switch position change.

[0127] In this embodiment, the association module 40 is also used to obtain secondary equipment model data from the main station of the information security system and to obtain primary equipment model data from the main station of the scheduling and control system in real time; and to associate the primary equipment model data with the secondary equipment model data to obtain equipment model association data.

[0128] In this embodiment of the application, the displacement request module 50 is also used to schedule the control master station to send the displacement information request file to the information protection master station via the SFTP protocol.

[0129] Example 3:

[0130] Figure 5 This is a schematic diagram of the terminal device described in an embodiment of this application.

[0131] like Figure 5 As shown, this application provides a terminal device, including a processor and a memory;

[0132] Memory is used to store program code and transfer the program code to the processor;

[0133] The processor is used to execute the above-mentioned double confirmation method for the position of the disconnector based on the protection information switching quantity interaction mechanism according to the instructions in the program code.

[0134] It should be noted that the processor is used to execute the steps in the above-described embodiment of a dual-confirmation method for switch position based on a protection information switch quantity interaction mechanism, according to the instructions in the program code. Alternatively, when the processor executes the computer program, it implements the functions of each module / unit in the above-described system / device embodiments.

[0135] For example, a computer program can be divided into one or more modules / units, one or more of which are stored in memory and executed by a processor to complete this application. One or more modules / units can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in a terminal device.

[0136] Terminal devices can be computing devices such as desktop computers, laptops, handheld computers, and cloud servers. Terminal devices may include, but are not limited to, processors and memory. Those skilled in the art will understand that this does not constitute a limitation on the terminal device, which may include more or fewer components than illustrated, or combinations of certain components, or different components. For example, a terminal device may also include input / output devices, network access devices, buses, etc.

[0137] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0138] Memory can be an internal storage unit of a terminal device, such as a hard drive or RAM. Memory can also be an external storage device, such as a plug-in hard drive, SmartMedia Card (SMC), Secure Digital (SD) card, or Flash Card. Furthermore, memory can include both internal and external storage units. Memory is used to store computer programs and other programs and data required by the terminal device. Memory can also be used to temporarily store data that has been output or will be output.

[0139] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0140] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0141] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0142] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0143] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer 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 steps 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 USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0144] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method for dual confirmation of disconnector position based on a protection information switching quantity interaction mechanism, applied to a power data acquisition system, characterized in that, The power data acquisition system includes a bus differential protection device, a bus measurement and control device, a data protection master station, and a dispatch control master station. The bus differential protection device is connected to the data protection master station, and the bus measurement and control device is connected to the dispatch control master station. The data protection master station communicates with the dispatch control master station through a server. The method for double confirmation of disconnector position includes the following steps: The bus differential protection device obtains the position information of the first disconnector of the bus-side disconnector and transmits the position information of the first disconnector to the main protection station. The busbar monitoring and control device acquires the position information of the second disconnector of the busbar-side disconnector and transmits the position information of the second disconnector to the dispatch control master station. The first disconnector position information is compared with the second disconnector position information to determine whether the disconnector positions are consistent, thereby achieving double confirmation of the disconnector position of the disconnector switch.

2. The method for dual confirmation of switch position based on protection information switching quantity interaction mechanism according to claim 1, characterized in that, The dual confirmation method for the position of the disconnector also includes: Obtain the device model association data between the information security master station and the scheduling control master station; If the disconnector switch's disconnector state changes, the dispatch control master station obtains the disconnector state change information through the busbar monitoring and control device based on the disconnector state change; the dispatch control master station sends a change information request file to the information protection master station based on the disconnector state change. The main station for information protection extracts the bus protection switch status data of the disconnecting switch from the bus differential protection device according to the change information request file. The main station for information protection generates a change information result file according to the bus protection switch status data and transmits the change information result file to the dispatch control main station. The scheduling and control master station compares the change information of the disconnector state with the change information result file based on the equipment model association data to obtain a confirmation conclusion of the change in disconnector position.

3. The method for dual confirmation of switch position based on protection information switching quantity interaction mechanism according to claim 2, characterized in that, The content of obtaining the device model association data between the information security master station and the scheduling control master station includes: Secondary equipment model data is obtained from the main station of the information security system, and primary equipment model data is obtained from the main station of the scheduling and control system in real time. The primary equipment model data is associated with the secondary equipment model data to obtain equipment model association data.

4. The method for dual confirmation of switch position based on protection information switching quantity interaction mechanism according to claim 2, characterized in that, Also includes: The switch status change information is converted into a CIM file and stored in the scheduling and control master station.

5. The method for dual confirmation of switch position based on protection information switching quantity interaction mechanism according to claim 2, characterized in that, Also includes: The scheduling and control master station sends the change information request file to the information protection master station via the SFTP protocol.

6. A dual-confirmation system for disconnector position based on a protection information switching quantity interaction mechanism, applied to a power data acquisition system, characterized in that, The power data acquisition system includes a bus differential protection device, a bus measurement and control device, a data protection master station, and a dispatch control master station. The bus differential protection device is connected to the data protection master station, and the bus measurement and control device is connected to the dispatch control master station. The data protection master station communicates with the dispatch control master station through a server. The disconnector position dual confirmation system includes: a first data acquisition module, a second data acquisition module, and a position confirmation module. The first data acquisition module is used to acquire the first disconnector position information of the busbar side disconnector through the bus differential protection device and transmit the first disconnector position information to the main protection station; The second data acquisition module is used to acquire the second disconnector position information of the bus-side disconnector through the bus measurement and control device and transmit the second disconnector position information to the dispatch control master station; The position confirmation module is used to compare the first disconnector position information with the second disconnector position information to determine whether the disconnector positions are consistent, so as to achieve double confirmation of the disconnector position of the disconnector switch.

7. The dual-confirmation system for disconnector position based on the protection information switching quantity interaction mechanism according to claim 6, characterized in that, Also includes: The module includes an association module, a change request module, a result information acquisition module, and a double confirmation module. The association module is used to obtain the device model association data between the information security master station and the scheduling control master station; The change request module is used to obtain the change information of the disconnector status through the bus monitoring and control device based on the change of the disconnector status of the disconnector. The dispatch control master station sends a change information request file to the information security master station according to the change of the disconnector status; The result information acquisition module is used by the security information master station to extract the bus protection switch status data of the disconnecting switch from the bus differential protection device according to the change information request file, and the security information master station to generate a change information result file according to the bus protection switch status data and transmit the change information result file to the dispatch control master station. The dual confirmation module is used by the scheduling and control master station to compare the switch status change information with the position change information result file based on the equipment model association data, and obtain a confirmation conclusion on the switch position change.

8. The dual-confirmation system for disconnector position based on the protection information switching quantity interaction mechanism according to claim 7, characterized in that, The association module is also used to obtain secondary equipment model data from the main station of the information security system, and to obtain primary equipment model data from the main station of the scheduling and control system in real time; and to associate the primary equipment model data with the secondary equipment model data to obtain equipment model association data.

9. The dual-confirmation system for disconnector position based on the protection information switching quantity interaction mechanism according to claim 7, characterized in that, The change request module is also used by the scheduling control master station to send the change information request file to the information protection master station via the SFTP protocol.

10. A terminal device, characterized in that, Including the processor and memory; The memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the dual confirmation method for switch position based on the protection information switch quantity interaction mechanism as described in any one of claims 1-5, according to the instructions in the program code.

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