A master station remote control automatic acceptance method

Abstract

The application relates to the technical field of power system automation, and discloses a kind of main station remote control automatic acceptance methods, comprising the following steps: S1, system construction: setting secondary equipment simulation device at plant station side, secondary equipment simulation device is simultaneously connected monitoring host computer and remote device, and remote device is connected main station through dispatching data network;S2, start acceptance: for the circuit breaker or switch to be accepted, secondary equipment simulation device sends the switch position remote signal of this switch, and is accompanied by even SOE time, and switch position remote signal is used to trigger main station to start the remote control acceptance of single switch.The main station remote control automatic acceptance method adopts the mode of simulating secondary equipment in transformer substation, takes the accepted monitoring host computer as a reference, triggers the remote control acceptance of single switch by sending remote signal with specific information, realizes automatic acceptance, and reduces information interaction between main plant station.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power system automation, in particular to a main station remote control automatic acceptance method. BACKGROUND

[0002] The main station remote control acceptance, as a core link of the substation acceptance work, is self-evident in importance, and the accuracy of the remote control configuration is directly related to the safe and stable operation of the power grid, and any tiny error can cause unexpected power failure, equipment damage, and even a serious threat to the safety of the entire power grid. When performing the main station remote control acceptance, we not only need to ensure the correctness of the remote control complete loop, which includes the accurate setting of the communication parameters, the correct specification of the message format and the reliable operation of the secondary loop, but also need to simulate the extreme working condition of the breaker remote control function to test whether the main station system can accurately identify the fault interval and instantly display the corresponding interval diagram. Such a test process not only comprehensively tests the performance of the main station system, but also provides a strong guarantee for the safe and stable operation of the power grid. By simulating the fault conditions in the real scene, we can timely find and correct potential problems, and ensure that the main station system can quickly and accurately respond to unexpected situations, providing a solid support for the safe and stable operation of the power grid.

[0003] The traditional main station remote control acceptance method often needs power-off conditions, relies on actual primary and secondary equipment and relay protection testers to simulate faults, and such a long process, large number of personnel and frequent manual operation method is not only low in efficiency, but also increases the complexity of power-off plans, personnel coordination and safety monitoring when the running substation is connected to a new main station. With the rapid development of technology, new acceptance methods have emerged. They use software to simulate secondary equipment, use the dispatching channel of the accepted monitoring host or remote device as a reference, and efficiently accept the main station. This method not only avoids the limitation of power-off, but also significantly reduces manual operation and improves acceptance efficiency. However, although this software simulation-based method brings many conveniences, it still needs close cooperation between the main station and the plant station, especially in information transmission, such as the current remote control point being accepted, the reaction on the graphic interface and the correctness of the acceptance result, which all need efficient and accurate communication and confirmation between the two parties. Therefore, there are certain disadvantages. SUMMARY

[0004] The purpose of the application is to simulate the secondary equipment in the substation, use the accepted monitoring host as a reference, send SOE time even sub-remote signals to trigger the main station to perform remote control acceptance of a single switch, realize automatic acceptance, and reduce information interaction between the main station and the plant station.

[0005] The technical scheme for solving the above technical problems of the present application is as follows:

[0006] A master station remote control automatic acceptance method, comprising the following steps:

[0007] S1, system construction: a secondary device simulation device is arranged at the station side, the secondary device simulation device is connected with a monitoring host and a remote device at the same time, and the remote device is connected with the master station through a dispatching data network;

[0008] S2, start acceptance: the secondary device simulation device sends a split position remote signal of a switch to be accepted, and an even SOE time is attached, the split position remote signal is used for triggering the master station to start remote control acceptance of a single switch, and the switch includes a circuit breaker or a knife switch;

[0009] S3, information recording and checking: the monitoring host and the master station respectively record the name, value and SOE time of the received remote signal, and simultaneously record the name, value and SOE time of the action graph element, and the consistency of the name of the remote signal and the name of the graph element is associated and checked through the unique SOE time;

[0010] S4, sending a remote control command: if the name of the remote signal and the name of the graph element are consistent, the monitoring host and the master station obtain the corresponding remote control object according to the graph element configuration, and respectively send a remote control closing command;

[0011] S5, remote control attribute checking: after the secondary device simulation device receives the remote control closing command, the remote control attributes of the monitoring host and the master station are parsed and compared, if consistent, the switch closing position remote signal is sent, and an odd SOE time is attached;

[0012] S6, fault simulation and checking: if the switch is a circuit breaker, the secondary device simulation device continues to send the split position remote signal of the switch and the interval accident total closing position remote signal of the interval to which the switch belongs to the master station, and the master station checks the identification correctness of the accident interval after receiving the remote signal;

[0013] S7, remote control response and recording: the master station sends a corresponding remote control command to open or close according to the received remote signal, and the secondary device simulation device records the acceptance result;

[0014] S8, cycle acceptance and report generation: repeat the above steps to complete the acceptance of all switches, and the master station sorts the information in the acceptance process to automatically generate an acceptance report.

[0015] Further, the step S1 specifically comprises the following steps:

[0016] S101, preparing a secondary device simulation device: selecting or designing a simulation device conforming to the communication protocol of the secondary device of the substation, to ensure that the simulation device can simulate the communication behavior of the secondary device of the substation, and the secondary device of the substation includes a relay protection device and a measurement and control device;

[0017] S102, connecting the monitoring host: connecting the secondary device simulation device to the monitoring host through a communication interface and configuring communication parameters, the communication interface including an Ethernet interface or a serial port;

[0018] S103, connecting the remote device: connecting the secondary device simulation device to the remote device and configuring communication parameters between the remote device and the simulation device;

[0019] S104, configuring the connection between the remote device and the master station: the remote device establishes a connection with the master station through a dispatching data network and configures network parameters of the remote device, including an IP address, a port number, so as to communicate with the master station;

[0020] S105, verifying the communication link: after the connection is completed, verifying whether the communication link between the simulation device, the monitoring host, the remote device and the master station is normal;

[0021] S106, configuring the simulation device: configuring related parameters of the simulation device according to the actual configuration and needs of the substation, the related parameters of the simulation device including the simulated secondary device type, quantity and communication protocol;

[0022] S107, system initialization: after all the connections and configurations are completed, the secondary device simulation device starts to simulate the secondary devices of the whole station, all the remote signals are initially set to off, and waits for the monitoring host and the master station to complete the communication connection, ensuring that all the devices are in a normal working state.

[0023] Further, the step S2 specifically includes the following steps:

[0024] S201, selecting a switch to be accepted: first, determining a circuit breaker or a knife switch to be subjected to remote control acceptance;

[0025] S202, generating a split position remote signal: the secondary device simulation device generates a corresponding split position remote signal according to the selected switch, the split position remote signal being used to indicate the state that the switch is currently in an off position;

[0026] S203, attaching an even SOE time: attaching an even SOE time in the generated split position remote signal, wherein the SOE time refers to a time stamp of an event sequence record, used to mark the sequence and time of an event, and the even SOE time is used as an identifier for triggering the master station to start the remote control acceptance of a single switch;

[0027] S204, sending the split position remote signal: sending the generated split position remote signal with the even SOE time to the monitoring host and the remote device, and the remote device further forwards the remote signal to the master station through a dispatching data network;

[0028] S205, triggering the master station to accept: after the master station receives the substation remote signaling with even SOE time, the corresponding acceptance process is started, including recording the received remote signaling information, checking the graphic element configuration, and sending the remote control command.

[0029] Further, the step S3 specifically includes the following steps:

[0030] S301, recording remote signaling information: when the monitoring host and the master station receive the remote signaling sent by the secondary device simulation device, the name, value and SOE time of the remote signaling are recorded respectively;

[0031] S302, recording action graphic element information: the monitoring host and the master station record the name, value and SOE time of the action graphic element, which represents the graphic element associated with the remote signaling in the monitoring system;

[0032] S303, associating information based on SOE time: the monitoring host and the master station associate the remote signaling information with the action graphic element information by comparing the recorded SOE time;

[0033] S304, checking the consistency of remote signaling name and graphic element name: after the association is completed, the monitoring host and the master station check the consistency of the remote signaling name and the action graphic element name, and if the remote signaling name and the graphic element name are found to be inconsistent, the system issues a warning or an error prompt so that the operator can further check and adjust;

[0034] S305, recording and checking the results: the monitoring host and the master station record the results of the recording and checking.

[0035] Further, when the SOE time comparison and checking are performed, the time resolution of the SOE time is not greater than 2ms.

[0036] Further, the step S4 specifically includes the following steps:

[0037] S401, confirming the checking result: the monitoring host and the master station confirm the consistency result of the remote signaling name and the graphic element name checked in step S3, and when the checking result is consistent, the subsequent remote control command sending operation is continued;

[0038] S402, obtaining the remote control object: based on the action graphic element information recorded in step S3, the monitoring host and the master station obtain the corresponding remote control object according to the graphic element configuration;

[0039] S403, generating a remote control closing command: based on the obtained remote control object, the monitoring host and the master station generate a remote control closing command, and the remote control attribute information of the remote control closing command includes the identification of the remote control object, the instruction of the closing operation, the priority, and the execution time;

[0040] S404, sending remote control closing command: the monitoring host sends the generated remote control closing command to the remote device, and the remote device forwards the command to the circuit breaker or the switch after receiving the command, and the master station sends the same remote control closing command to the circuit breaker or the switch directly or through the remote device;

[0041] S405, waiting for response and recording: the monitoring host and the master station wait for the response of the circuit breaker or the switch after sending the remote control closing command, and record the response event and the time stamp thereof once the response is received;

[0042] S406, checking execution result: after receiving the response of the circuit breaker or the switch, the monitoring host and the master station check whether the execution result is consistent with the expectation, and trigger an alarm or perform other error handling procedures if the checking result is inconsistent.

[0043] Further, the step S5 specifically comprises the following steps:

[0044] S501, receiving remote control closing command: the secondary equipment simulation device receives the remote control closing command sent by the monitoring host and the master station;

[0045] S502, analyzing remote control closing command: the secondary equipment simulation device analyzes the received remote control closing command and extracts the remote control attribute information therein;

[0046] S503, comparing remote control attribute: the secondary equipment simulation device compares whether the remote control attribute information in the remote control closing command sent by the monitoring host and the master station is consistent;

[0047] S504, checking result judgment: if the remote control attribute information is consistent, the secondary equipment simulation device judges that the checking is passed and continues to perform the subsequent steps, and if the remote control attribute information is inconsistent, error handling or abnormality reporting is performed;

[0048] S505, sending switch closing remote signaling: when the checking is passed, the secondary equipment simulation device sends switch closing remote signaling through the communication interface to notify the system that the switch has been successfully closed;

[0049] S506, attaching odd SOE time: in the sent switch closing remote signaling, the secondary equipment simulation device attaches an odd SOE time, which is used to uniquely identify the event, facilitating subsequent event sequence analysis and recording;

[0050] S507, waiting for confirmation and recording: the secondary equipment simulation device waits for the confirmation of the system to the switch closing remote signaling and records the event and the attached odd SOE time thereof.

[0051] Further, the step S6 specifically comprises the following steps:

[0052] S601, the simulation device sends a split position remote signal: after determining that the switch is a circuit breaker, the secondary equipment simulation device simulates the split position state of the circuit breaker and sends a corresponding split position remote signal, which is used to indicate that the circuit breaker is currently in the split position;

[0053] S602, sending an interval accident total position remote signal: the secondary equipment simulation device sends an interval accident total position remote signal of the interval to which it belongs, which is used to indicate that an accident has occurred in the interval and all related accident signals have been combined into a total accident signal;

[0054] S603, the master station receives and analyzes the remote signal: the master station receives the split position remote signal and the interval accident total position remote signal sent by the secondary equipment simulation device and analyzes them, the master station extracts key information in the remote signal, including circuit breaker identification, split position state, interval identification and accident total position state;

[0055] S604, checking the correctness of the identification of the accident interval: the master station checks the correctness of the identification of the accident interval according to the received remote signal information, the master station checks whether the interval indicated in the accident total position remote signal matches the expected accident interval, and verifies whether the circuit breaker indicated in the split position remote signal is indeed located in the interval and its state is consistent with the accident total position remote signal;

[0056] S605, recording and feedback: if the verification result is correct, the master station records the event and feeds back the related information to the operator or system administrator, if the verification result is incorrect, the master station triggers an alarm or error handling process.

[0057] Further, the step S7 specifically comprises the following steps:

[0058] S701, the master station receives and analyzes the remote signal: the master station receives the remote signal from the secondary equipment simulation device, which reflects the state of the switch and the accident signal, and the master station analyzes the remote signal and extracts the key state information;

[0059] S702, the master station sends a remote control command: based on the analyzed remote signal information, the master station judges the state of the current switch and sends a corresponding remote control command as needed, if the switch needs to be disconnected, the master station sends a split command; if the switch needs to be closed, the master station sends a closing command;

[0060] S703, the simulation device receives the remote control command: the secondary equipment simulation device receives the remote control command sent by the master station and decodes and verifies it to ensure the accuracy and integrity of the command;

[0061] S704, the simulation device executes the remote control command: after verification, the secondary equipment simulation device executes the corresponding split or closing operation according to the remote control command;

[0062] S705, the simulation device records the acceptance result: after executing the remote control command, the secondary equipment simulation device records the result of the execution, including the type of command, opening or closing, execution time, and whether the execution is successful.

[0063] S706, feedback execution result: the secondary equipment simulation device feeds back the execution result to the master station, so that the master station confirms the execution of the remote control command and performs necessary subsequent operations or records.

[0064] Further, the step S8 specifically includes the following steps:

[0065] S801, initialization loop: the master station or automation system starts a loop process for traversing all switches that need to be accepted;

[0066] S802, repeat the acceptance step: for each switch to be accepted, the system repeats steps S1 to S7;

[0067] S803, record acceptance information: during the acceptance process of each switch, the master station records key information, including the sending time of the remote control command, the received remote signaling content, the execution result, any error or abnormal situation;

[0068] S804, arrange acceptance data: when the acceptance of all switches is completed, the master station will arrange all the data collected during the acceptance process, including summarizing the acceptance result of each switch, analyzing whether all switches pass the acceptance, and whether there are any problems or trends that need special attention;

[0069] S805, generate acceptance report: the master station automatically generates an acceptance report using the arranged data, including detailed information of success or failure, any abnormal or error situation, overall success rate of acceptance, possible problems and improvement suggestions;

[0070] S806, review and distribute the acceptance report: the generated acceptance report is reviewed, and after passing the review, the report is distributed to relevant personnel or departments;

[0071] S807, archiving and backup: the acceptance report should be properly archived and backed up so that it can be easily consulted or restored when needed;

[0072] S808, subsequent processing: if any problems or improvements are found during the acceptance process, the system administrator or maintenance personnel take appropriate measures to repair or improve, and re-perform the relevant acceptance test to ensure the stability and reliability of the system.

[0073] Compared with the prior art, the technical scheme of the present application has the following beneficial technical effects:

[0074] 1、The main station remote control automatic acceptance method provided by the present application has obvious advantages in the field of power system automation technology. The method does not need to rely on actual primary and secondary equipment and relay protection testers, but tests the correctness of the main station remote control by simulating the secondary equipment in the substation and taking the accepted monitoring host as the reference. This not only eliminates the limitation of power-off conditions, but also significantly reduces the investment in equipment and resources, greatly improves the flexibility and efficiency of acceptance, and reduces the information interaction time cost between the main station and the station compared with the traditional method. The single switch remote control acceptance is started by the main station through the remote signaling containing specific information, without the need for prior agreement on the number and order of acceptance switches between the two parties, thereby greatly reducing the complexity of information interaction and improving the automation level and efficiency of acceptance.

[0075] 2、The present application also reduces the system deployment cost. The acceptance result information is interacted through the internal remote signaling and remote control of the monitoring system, without the need to introduce external devices or software, thereby simplifying system deployment and configuration, reducing system maintenance and upgrade costs, and improving system stability and reliability. More importantly, the present application realizes comprehensive and efficient acceptance of the main station remote control function through software simulation and automatic process. The system can automatically record, verify and send remote control commands, simulate fault conditions, and automatically judge the correctness of the acceptance result. This automated and intelligent acceptance method not only improves the efficiency and accuracy of acceptance, but also reduces the possibility of human error, providing a solid guarantee for the safe and stable operation of the power grid.

[0076] In summary, the main station remote control automatic acceptance method of the present application realizes significant enhancement of the safe and stable operation capability of the power grid through a number of innovative measures, such as not needing actual primary and secondary equipment, reducing information interaction time cost, reducing system deployment cost, improving acceptance efficiency and accuracy, etc. This method has wide application prospects and promotional value in the field of power system automation technology. BRIEF DESCRIPTION OF DRAWINGS

[0077] Figure 1 The flowchart of the main station remote control automatic acceptance method of the present application is shown. DETAILED DESCRIPTION

[0078] The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0079] In combination with Figure 1 the present application, the present application provides a main station remote control automatic acceptance method, which includes the following steps:

[0080] S1, system construction, set secondary equipment simulation device at the station side, the device is connected to the monitoring host and the remote device at the same time, and the remote device is connected to the main station through the dispatching data network;

[0081] In step S1, the following steps are specifically included:

[0082] S101, prepare secondary equipment simulation device, select or design simulation device conforming to the communication protocol of secondary equipment in the substation, and ensure that the simulation device can simulate the communication behavior of relay protection, measurement and control and other secondary equipment in the substation;

[0083] S102, connect the monitoring host, connect the secondary equipment simulation device to the monitoring host through appropriate communication interfaces such as Ethernet interface, serial port, etc., configure communication parameters, and ensure smooth communication between the simulation device and the monitoring host;

[0084] S103, connect the remote device, also connect the secondary equipment simulation device to the remote device, configure the communication parameters between the remote device and the simulation device, and ensure that the data can be correctly transmitted;

[0085] S104, configure the connection between the remote device and the main station, the remote device establishes connection with the main station through the dispatching data network, and configures the network parameters of the remote device, including IP address, port number, etc., so as to communicate with the main station;

[0086] S105, verify the communication link, after the connection is completed, verify whether the communication link between the simulation device, the monitoring host, the remote device and the main station is normal, which can be verified by sending test messages and other methods;

[0087] S106, configure the simulation device, configure the related parameters of the simulation device according to the actual configuration and needs of the substation, including the type, number and communication protocol of the simulated secondary equipment;

[0088] S107, system initialization, after all connections and configurations are completed, perform initialization operation on the whole system to ensure that all devices are in normal working state, and prepare for subsequent remote control automatic acceptance.

[0089] In the process of building the main station remote control automatic acceptance system, step S1 details the entire process from preparing the simulation device to system initialization. First, a simulation device that can accurately simulate the communication behavior of relay protection, measurement and control, and other secondary devices in the substation needs to be selected or designed to ensure compatibility with the communication protocol actually used in the substation, and the types and quantities of simulated secondary devices meet the testing requirements. Next, connect the simulation device with the monitoring host, configure the corresponding communication parameters to ensure smooth communication between the two. Then, connect the simulation device with the remote device and configure the network parameters of the remote device to establish a stable communication connection with the main station. During this process, network security is crucial, so measures such as encrypted communication and firewall settings should be taken to ensure the security of communication. After completing the connection and configuration, the communication link needs to be verified to ensure normal communication between the simulation device, monitoring host, remote device, and main station by sending test messages, etc. This step needs to consider various abnormal situations such as communication interruption and data loss, and develop appropriate handling measures. Then, according to the actual configuration of the substation and testing requirements, configure the relevant parameters of the simulation device to ensure that the types, quantities, and communication protocols of the simulated secondary devices are consistent with the actual substation configuration. During the configuration process, various configuration changes should be fully considered to ensure the accuracy and comprehensiveness of the test. Finally, initialize the entire system to ensure that all devices are in normal working condition and fully prepare for subsequent remote control automatic acceptance. During system initialization, various abnormal situations should also be considered and appropriate handling measures should be developed. In addition, the system should be thoroughly checked and tested to ensure its normal and stable operation. Through the above steps, a main station remote control automatic acceptance system with perfect functions and stable performance can be built, providing strong support for the safe and stable operation of the power grid.

[0090] S2, start acceptance, for the circuit breaker or knife switch to be accepted, the secondary device simulation device sends the split position remote signal of the switch, and attaches the even SOE time, the remote signal is used to trigger the main station to start the remote control acceptance of the single switch;

[0091] In step S2, the following steps are included:

[0092] S201, select the switch to be accepted, first, determine the circuit breaker or knife switch that needs to be subjected to remote control acceptance;

[0093] S202, generate split position remote signal, the secondary device simulation device generates the corresponding split position remote signal according to the selected switch, which is used to indicate the current split position state of the switch;

[0094] S203, Attached even-numbered SOE time: In the generated remote signaling, an even-numbered SOE time is attached. The SOE time refers to the timestamp of the event sequence record, which is used to mark the order and time of the event occurrence. The even-numbered SOE time is used as an identifier to trigger the master station to start the remote control acceptance of a single switch; while the odd-numbered SOE time is used to transmit ordinary remote signaling change information.

[0095] S204. Send the segmented remote signal. Send the generated segmented remote signal with an even number of SOE times to the monitoring host and the remote control unit. The remote control unit then forwards the remote signal to the master station through the dispatch data network.

[0096] S205. Triggering Master Station Acceptance: After receiving a remote signal with an even number of SOE times, the master station recognizes that this is a signal that triggers remote control acceptance for a single switch. Then, the master station will start the corresponding acceptance process, including recording the received remote signal information, verifying the graphic element configuration, and sending remote control commands.

[0097] In step S2, the switch requiring remote acceptance is first determined, which is usually a circuit breaker or disconnector switch. Next, the secondary equipment simulation device generates a corresponding remote signal based on the selected switch. This signal indicates that the switch is currently in the open position. To identify this remote signal and trigger the master station's acceptance process, the system attaches an even-numbered SOE timestamp to the generated remote signal. This timestamp records the sequence and time of the event, and the even-numbered SOE time is specifically used as an identifier to trigger the master station to perform remote acceptance of a single switch. Subsequently, this remote signal with an even-numbered SOE time is sent to the monitoring host and the remote control unit. The remote control unit then forwards this signal to the master station through the dispatch data network. After receiving this specially marked remote signal, the master station recognizes that this is a signal to initiate remote acceptance of a single switch. Therefore, the master station will operate according to the preset acceptance process, which includes recording the received remote signal information, verifying the configuration of the graphical elements, and sending remote control commands.

[0098] At the same time, the generation rules and verification mechanisms of SOE timestamps can be further clarified to ensure their accuracy and reliability. In addition, the specific steps and problems encountered in the remote acceptance process can be described in more detail and pre-set solutions can be provided so that the acceptance work can be completed more quickly and accurately in actual operation. Meanwhile, considering the security and stability of the system, security measures such as data encryption and authentication during the communication process should also be explained and strengthened.

[0099] S3. Information recording and verification: The monitoring host and the main station record the name, value and SOE time of the received remote signal, and record the name, value and SOE time of the action graphic element. The consistency between the remote signal name and the graphic element name is verified by the unique SOE time.

[0100] In step S3, the following steps are specifically included:

[0101] S301, Record the remote signaling information, the monitoring host and the master station record the name, value and SOE time of the remote signaling sent by the secondary device simulation device, which is the basis for subsequent verification;

[0102] S302, Record the action graph element information, at the same time, the monitoring host and the master station also record the name, value and SOE time of the action graph element, which usually represents the graphical element associated with the remote signaling in the monitoring system, such as the graphical representation of the circuit breaker or the knife switch;

[0103] S303, Based on the SOE time association information, the monitoring host and the master station associate the remote signaling information with the action graph element information by comparing the recorded SOE time, since each SOE time is unique, this can ensure that the remote signaling and the corresponding graph element information are accurately matched;

[0104] S304, Verify the consistency of the remote signaling name and the graph element name, after the association is completed, the monitoring host and the master station will verify the consistency of the remote signaling name and the action graph element name, which is to ensure that in the monitoring system, the change of the remote signaling can correctly reflect the state change of the graph element, if the remote signaling name and the graph element name are found to be inconsistent, the system will issue a warning or error prompt, so that the operator can further check and adjust;

[0105] S305, Record and verify the results, the monitoring host and the master station will record the information recorded and the results of the verification, which can be used for subsequent troubleshooting, system optimization or performance evaluation.

[0106] In step S3, the process of recording, associating and verifying the telesignaling information and the action graphic element information, first, when the monitoring host and the master station receive the telesignaling sent by the secondary equipment simulation device, they will record the name, value and SOE time of this telesignaling, which is crucial for subsequent verification work, because they provide the time point and specific content of the telesignaling change, at the same time, the monitoring host and the master station will also record the name, value and SOE time of the action graphic element, which usually represents the graphic element associated with the telesignaling in the monitoring system, such as the graphic representation of the circuit breaker or the knife switch, the state change of these graphic elements should be synchronized with the change of the telesignaling, to ensure that the monitoring system can accurately reflect the actual state of the power grid equipment, next, the monitoring host and the master station associate the telesignaling information with the action graphic element information by comparing the recorded SOE time, since each SOE time is unique, this association method can ensure that the telesignaling and the corresponding graphic element information are accurately matched, this accurate association is very important for subsequent verification work, because it can ensure the accuracy of verification, after the association is completed, the monitoring host and the master station will verify the consistency of the telesignaling name and the action graphic element name, which is to ensure that in the monitoring system, the change of the telesignaling can be correctly reflected in the state change of the graphic element, if the verification process finds that the telesignaling name and the graphic element name are inconsistent, the system will issue a warning or error prompt, so that the operator can find and solve the problem in time, finally, the monitoring host and the master station will record the verification results, which can be used for subsequent troubleshooting and system optimization, and can also be used as the basis for performance evaluation, by analyzing these results, the running state of the system can be understood, potential problems can be found and corresponding improvement measures can be proposed.

[0107] For the recorded information, more detailed fields can be added, such as the state change history of telesignaling and action graphic element, operator's operation record, etc., which are very valuable for subsequent problem troubleshooting and system optimization, in addition, more verification rules can be added in the verification process, such as verifying the reasonableness of telesignaling value, verifying the legality of graphic element state, etc., to improve the reliability and accuracy of the system.

[0108] When performing SOE time comparison and verification, pay attention to the time resolution of SOE, the time resolution of SOE should be no more than 2ms, to ensure that when multiple events occur at the same time, the system can accurately record and distinguish their order and time.

[0109] When performing SOE (Sequence of Events) time comparison and verification, it is crucial to ensure that the time resolution of SOE is no more than 2ms, because the main purpose of the SOE system is to accurately record and distinguish the sequence and time of various events occurring in the power grid, especially when multiple events occur almost simultaneously, the time resolution defines the minimum time interval that the system can distinguish two consecutive events, when the time resolution is small enough (such as no more than 2ms), the system can record the event timestamp to the millisecond level, ensuring that even in a rapidly changing power grid environment, the sequence and time of each event can be accurately captured and distinguished.

[0110] The SOE system captures the timestamp of events through high-precision time synchronization equipment and accurate timing mechanism, when the state of the equipment in the power grid (such as circuit breaker, protection relay, etc.) changes or signal is generated, the SOE system immediately records the timestamp of this event and related information (such as equipment number, event type, etc.), then the system sorts and stores these events with timestamp for subsequent analysis and verification.

[0111] In the comparison and verification process, the system determines the sequence of events according to the recorded event timestamp, because the time resolution is small enough, even if multiple events occur almost simultaneously, the system can accurately determine their sequence according to their timestamps, which is crucial for fault analysis, accident investigation and system optimization, because it can help engineers and operators accurately understand the complete process of event occurrence, so as to find out the root cause and take corresponding measures.

[0112] There should be higher requirements for the time synchronization accuracy and stability of SOE system, because SOE system relies on accurate time synchronization to capture and record event timestamps, so the system must ensure that the time synchronization accuracy between various parts (such as data acquisition device, processing unit, storage device, etc.) is within an acceptable range, in addition, the system should have sufficient stability and reliability to ensure accurate recording and distinction of events in long time operation and harsh environment, in addition, sufficient consideration should be given to the storage and management of SOE data to ensure data integrity and accessibility.

[0113] S4, send remote control command, if the verification is consistent, the monitoring host and the master station obtain the corresponding remote control object according to the figure element configuration, and send remote control closing command respectively;

[0114] In step S4, the following steps are specifically included:

[0115] S401, confirm the consistency of the check results, the monitoring host and the master station will first confirm the consistency of the check results of the remote signaling name and the graphic element name in step S3. Only when the check results are consistent, will the subsequent remote control command sending operation be continued;

[0116] S402, obtain the remote control object, based on the action graphic element information recorded in step S3, the monitoring host and the master station will obtain the corresponding remote control object according to the graphic element configuration, which usually involves querying the information of the remote control device or switch associated with the graphic element from the database;

[0117] S403, generate a remote control closing command, once the information of the remote control object is obtained, the monitoring host and the master station will generate a remote control closing command, which usually contains the identification of the remote control object, the instruction of the closing operation and other parameters such as priority, execution time, etc;

[0118] S404, send the remote control closing command, the monitoring host will first send the generated remote control closing command to the remote device, and the remote device will forward it to the target device such as a circuit breaker or a knife switch after receiving the command. At the same time, the master station will also send the same remote control closing command to the target device directly or through the remote device, depending on the specific architecture and communication method of the system;

[0119] S405, wait for response and record, after sending the remote control closing command, the monitoring host and the master station will wait for the response of the target device. Once the response such as the confirmation of successful closing is received, they will record this event and its timestamp;

[0120] S406, check the execution result, after receiving the response of the target device, the monitoring host and the master station will check whether the execution result is consistent with the expectation, i.e. whether the closing operation is successful. If the check result is inconsistent, an alarm will be triggered or other error handling procedures will be performed.

[0121] In step S4, the main processes performed are the verification of remote control closing operation, command generation, sending, and result verification. First, in S401, the monitoring host and master station will confirm the consistency of the remote signal name and graphic element name verified in step S3. Only when the verification result is consistent, i.e., the change of remote signal in the monitoring system matches the change of graphic element state in the graphic interface, the system will continue to perform the subsequent remote control command sending operation, which is to ensure the accuracy and safety of remote control operation. Next, in S402, based on the action graphic element information recorded in step S3, the monitoring host and master station will obtain the corresponding remote control object. This process usually involves querying the information of remote control equipment or switch associated with the graphic element from the database, such as device number, location, state, etc. These information is the basis for generating remote control command in the future. In S403, once the information of remote control object is obtained, the monitoring host and master station will generate remote control closing command, which contains the identification of remote control object, the instruction of closing operation and other parameters such as priority, execution time, etc. These parameters ensure the accuracy and reliability of remote control command. Subsequently, in S404, the monitoring host first sends the generated remote control closing command to the remote device, which will forward it to the target device such as circuit breaker or knife switch after receiving the command. At the same time, the master station will also send the same remote control closing command to the target device directly or through the remote device, depending on the specific architecture and communication method of the system. In this way, the reliable transmission and execution of remote control command is ensured. In S405, after sending the remote control closing command, the monitoring host and master station will wait for the response of the target device. Once the response such as closing success confirmation is received, they will record this event and its timestamp, which is helpful for subsequent system monitoring, fault troubleshooting and performance evaluation. Finally, in S406, the monitoring host and master station will verify whether the execution result is consistent with the expected result, i.e., whether the closing operation is successful. This is achieved by comparing the received response with the expected result. If the verification result is inconsistent, i.e., the closing operation fails or an abnormality occurs, the system will trigger an alarm or perform other error handling procedures such as resending remote control command, recording error information or notifying the operator to intervene.

[0122] For the generation and sending process of remote control command, more safety verification and error handling mechanisms can be added, for example, identity verification and permission check can be added when generating remote control command to ensure that only authorized users can send remote control command. Command verification and validation can also be performed before sending remote control command to ensure the accuracy and integrity of the command. In addition, a timeout retry mechanism can be added for the response of target device to deal with network delay or device failure and other abnormal situations. These measures can improve the safety and reliability of the system.

[0123] S5, after receiving the remote control closing command, the secondary device simulation device parses and compares the remote control attributes of the monitoring host and the main station. If they are consistent, send the switch closing remote signal with the odd SOE time;

[0124] In step S5, the following steps are specifically included:

[0125] S501, receive remote control closing command, the secondary device simulation device first receives the remote control closing command sent by the monitoring host and the main station;

[0126] S502, parse remote control closing command, the secondary device simulation device parses the received remote control closing command and extracts the remote control attribute information such as the identification of the target device, the operation type closing, the priority, etc.

[0127] S503, compare remote control attributes, the secondary device simulation device compares whether the remote control attributes in the remote control closing commands sent by the monitoring host and the main station are consistent, which includes the identification of the target device, the operation type and other attributes;

[0128] S504, check result judgment, if the remote control attributes are consistent, the secondary device simulation device will judge that the check is passed and continue to execute the subsequent steps, if the attributes are not consistent, error handling or abnormality reporting is needed;

[0129] S505, send switch closing remote signal, when the check is passed, the secondary device simulation device will generate a remote signal indicating the switch closing and send it out through the communication interface, which is used to notify the system that the switch has been successfully closed;

[0130] S506, with odd SOE time, in the sent switch closing remote signal, the secondary device simulation device will attach an odd SOE time, similar to the previous even SOE time, the odd SOE time here is used to uniquely identify the event and facilitate subsequent event sequence analysis and recording;

[0131] S507, wait for confirmation and record, the secondary device simulation device will wait for the system's confirmation of the switch closing remote signal and record the event and its attached odd SOE time, which is helpful for subsequent system state monitoring and fault analysis.

[0132] In step S5, the secondary device simulation device is responsible for receiving, parsing, and verifying the remote close command from the monitoring host and the master station, and sending the corresponding switch close bit remote signal. In S501, the secondary device simulation device receives the remote close command sent from the monitoring host and the master station. These commands contain the identification of the target device, the operation type (close), and other parameters such as priority and execution time. Then, in S502, the secondary device simulation device parses the received remote close command and extracts the key remote control attribute information, which is crucial for subsequent operations, as it indicates how the device should respond to the command. Then, in S503, the secondary device simulation device compares the remote control attributes in the remote close command from the monitoring host and the master station to ensure that the commands from different sources are the same in content, thereby avoiding misoperation or system errors due to inconsistent commands. In S504, if the comparison result shows that the remote control attributes are consistent, the secondary device simulation device will judge that the verification is passed and continue to execute the subsequent steps. If the attributes are inconsistent, error handling measures such as recording error information, issuing warnings or notifying administrators need to be taken. In S505, when the verification is passed, the secondary device simulation device generates a remote signal indicating the switch close bit, which is used to notify the system that the switch has been successfully closed and ensure that other system components can update their status to reflect this change. Subsequently, in S506, the secondary device simulation device attaches an odd SOE time to the sent switch close bit remote signal. Similar to the previous even SOE time, the odd SOE time here is used to uniquely identify the event and ensure that different events can be accurately distinguished in the event sequence record. Finally, in S507, the secondary device simulation device waits for the system's confirmation of the switch close bit remote signal and records the event and its attached odd SOE time. This record helps subsequent system state monitoring, fault analysis, and performance evaluation,

[0133] Security verification mechanisms for remote close commands can be considered, such as including a security verification code in the command to verify the integrity and authenticity of the command. If the command is tampered with or forged during transmission, the verification code will not match, preventing the device from executing incorrect commands. In addition, state monitoring and fault detection mechanisms for the secondary device simulation device itself can be considered to ensure its continuous and stable operation.

[0134] S6, fault simulation and verification, if the switch is a circuit breaker, the simulation device continues to send the switch open bit remote signal and the interval accident total bit remote signal of the interval to which it belongs, and the master station verifies the correct identification of the accident interval after receiving it;

[0135] In step S6, the following steps are included:

[0136] S601, the simulation device sends the split position remote signal, when it is determined that the switch is a circuit breaker, the simulation device simulates the split position state of the circuit breaker and sends the corresponding split position remote signal, which indicates that the circuit breaker is currently in the split position;

[0137] S602, the simulation device sends the interval accident total bit remote signal, at the same time, the simulation device also sends the interval accident total bit remote signal of the interval, which indicates that an accident has occurred in the interval and all related accident signals have been combined into a total accident signal;

[0138] S603, the master station receives and analyzes the remote signal, the master station receives the split position remote signal and the interval accident total bit remote signal sent by the simulation device and analyzes them, the master station extracts the key information in the remote signal, such as the circuit breaker identification, the split position state, the interval identification and the accident total bit state, etc.;

[0139] S604, check the correctness of the identification of the accident interval, the master station checks the correctness of the identification of the accident interval according to the received remote signal information, the master station checks whether the interval indicated in the accident total bit remote signal matches the expected accident interval, and also verifies whether the circuit breaker indicated in the split position remote signal is indeed located in the interval and whether its state is consistent with the accident total bit remote signal;

[0140] S605, record and feedback, if the verification result is correct, the master station records the event and feeds back the relevant information to the operator or system administrator, if the verification result is incorrect, the master station triggers an alarm or error handling process to correct the problem in time;

[0141] S606, ensure time synchronization, during the whole process, the time synchronization between the simulation device and the master station is very important, in order to ensure the accuracy and consistency of the remote signal information, they should use the same time reference and conduct time synchronization calibration regularly.

[0142] In step S6, the simulation device and the master station cooperate together to simulate and verify the breaker position state and the accident state of the corresponding interval. In S601, after identifying a certain breaker, the simulation device simulates the position state of the breaker and sends the corresponding position remote signal. The remote signal accurately reflects the state that the breaker is currently in the open position, providing important information about the real-time state of the device for the system. Then, in S602, the simulation device not only sends the position remote signal, but also sends the interval accident total position remote signal of the corresponding interval. The function of this remote signal is to integrate and simplify the representation of the accident signal, so that the master station can quickly identify which interval has an accident, and all related accident signals have been combined into a total accident signal. Subsequently, in S603, the master station receives the position remote signal and the interval accident total position remote signal sent by the simulation device and analyzes them. The master station will extract key information from the remote signal, such as breaker identification, position state, interval identification, and accident total position state, which are crucial for subsequent accident processing and analysis. In S604, the master station verifies the correctness of the identification of the accident interval according to the received remote signal information. The master station will check whether the interval indicated by the accident total position remote signal matches the expected accident interval, and also verify whether the breaker indicated by the position remote signal is indeed located in the interval and its state is consistent with the accident total position remote signal. This verification ensures the accuracy of the system's identification of the accident state. If the verification result is correct, the master station will record this event in S605 and feed back the relevant information to the operator or system administrator. In this way, the operator or system administrator can timely understand the system state and take appropriate measures. If the verification result is incorrect, the master station will trigger an alarm or error handling process to correct the problem in time and prevent the situation from further deteriorating. Finally, in S606, time synchronization is emphasized as a very important part of the whole process. The simulation device and the master station should use the same time reference and regularly calibrate the time synchronization. This is because time information is an important part of remote signal information, and accurate time synchronization can ensure the accuracy and consistency of remote signal information, thereby ensuring the accuracy of the system's identification of the accident state.

[0143] The specific implementation and calibration period of time synchronization can be described in more detail. For example, it can be explained how time synchronization is implemented (such as NTP, PTP, etc.), and how the calibration period is determined (such as once a day, once a week, etc.). In addition, it is also possible to consider adding a handling strategy for time synchronization failure to ensure that the system can discover and take appropriate measures in time when time synchronization problems occur.

[0144] S7, remote control response and recording, the master station sends corresponding remote control commands to open or close according to the received remote signal, and the simulation device records the acceptance result;

[0145] In step S7, the following steps are specifically included:

[0146] S701, the master station receives and analyzes the telesign, the master station will first receive the telesign from the analog device, which reflects the status of the switch such as the closing or opening position and the accident signal, the master station will analyze the telesign and extract the key status information to make corresponding control decisions;

[0147] S702, the master station sends the remote control command, based on the analyzed telesign information, the master station will judge the current status of the switch and send the corresponding remote control command according to the need, if the switch needs to be opened, the master station will send the opening command, if the switch needs to be closed, the master station will send the closing command;

[0148] S703, the analog device receives the remote control command, the analog device will receive the remote control command sent by the master station and decode and verify it to ensure the accuracy and integrity of the command;

[0149] S704, the analog device executes the remote control command, after verification, the analog device will execute the corresponding operation according to the remote control command, i.e. opening or closing;

[0150] S705, the analog device records the acceptance result, after executing the remote control command, the analog device will record the execution result, including the type of command, opening or closing, execution time, whether the execution is successful, etc. These records will be used for subsequent acceptance confirmation and system performance analysis;

[0151] S706, feedback the execution result, the analog device will also feedback the execution result to the master station to confirm the execution of the remote control command and perform necessary subsequent operations or records.

[0152] In step S7, remote monitoring and control of the switch state is achieved through telesignaling interaction and remote control commands between the master station and the simulation device. In S701, the master station receives telesignals from the simulation device, which detail the real-time state of the switch, such as the closed position, open position, and potential accident signals. The master station accurately analyzes these telesignals and extracts key state information, such as the current position of the switch, the type and source of the accident signal, etc., which is crucial for the master station to make correct control decisions. Next, in S702, the master station determines the current state of the switch based on the analyzed telesignal information and sends appropriate remote control commands according to actual needs. For example, if the switch is in the closed position but needs to be opened according to system operation requirements, the master station will send an opening command. Conversely, if the switch is in the open position but needs to be closed, the master station will send a closing command. This flexible command sending mechanism ensures that the master station can adjust the position of the switch in real time according to the system state. In S703, the simulation device receives the remote control commands sent by the master station and performs a strict decoding and verification process, which ensures that the received commands are accurate, complete, and have not been tampered with, thereby ensuring the reliability of subsequent operations. Once verified, the simulation device will execute the appropriate operation according to the remote control command in S704. Whether it is opening or closing, the simulation device will accurately adjust the state of the switch according to the command requirements. This rapid response capability is crucial for ensuring the stable operation of the system. After executing the remote control command, the simulation device records the execution results in S705, including the type of command (opening or closing), execution time, and whether the execution was successful. These records are not only used for subsequent acceptance confirmation but also provide valuable data support for system performance analysis. Finally, in S706, the simulation device feeds back the execution results to the master station. This feedback mechanism allows the master station to confirm the execution of the remote control command in real time and make subsequent operations or records as needed. This two-way communication mode enhances the reliability and maintainability of the system.

[0153] Additional processing strategies for abnormal situations encountered during the sending and receiving of remote control commands can be added, such as re-sending commands, recording error logs, or triggering alarms when the simulation device fails to successfully receive or analyze remote control commands. In addition, more detailed analysis and evaluation mechanisms for the execution results of remote control commands can be considered to better understand system performance and potential problems.

[0154] S8, Loop acceptance and report generation, repeat the above steps to complete the acceptance of all switches. The master station organizes the information during the acceptance process to automatically generate an acceptance report.

[0155] In step S8, the following steps are included:

[0156] S801, Initialize the cycle, the master station or automation system will start a cycle process for traversing all switches that need to be accepted;

[0157] S802, Repeat the acceptance steps, for each switch to be accepted, the system will repeat steps S1 to S7;

[0158] S803, Record acceptance information, during the acceptance process of each switch, the master station will record key information such as the sending time of the remote control command, the received remote signaling content, the execution result, any errors or abnormal situations, etc.;

[0159] S804, Organize acceptance data, when all switch acceptance is completed, the master station will start to organize all data collected during the acceptance process, which includes summarizing the acceptance results of each switch, analyzing whether all switches have passed the acceptance, and whether there are any problems or trends that need special attention;

[0160] S805, Generate acceptance report, the master station will use the organized data to automatically generate an acceptance report, which should clearly list the acceptance results of each switch, including detailed information of success or failure, and any abnormal or error conditions, the report should also include some summary information such as the overall success rate of acceptance, problems and improvement suggestions, etc.;

[0161] S806, Review and distribute the acceptance report, the generated acceptance report needs to be reviewed to ensure its accuracy and completeness, after passing the review, the report will be distributed to relevant personnel or departments so that they can understand the status of the system and the acceptance results;

[0162] S807, Archiving and backup, the acceptance report should be properly archived and backed up so that it can be easily consulted or restored when needed;

[0163] S808, Subsequent processing, if any problems or improvements are found during the acceptance process, the system administrator or maintenance personnel should take appropriate measures to repair or improve, and re-perform relevant acceptance tests to ensure the stability and reliability of the system.

[0164] In step S8, the master station or automation system performs a comprehensive acceptance process to ensure that the status and functionality of all switches meet the expected requirements. In S801, the master station or automation system initiates an initialization loop that will iterate through all switches that need to be accepted. This step is the foundation of the entire acceptance process, ensuring that all relevant devices are properly checked and tested. Then, in S802, the system repeats the acceptance steps from S1 to S7 for each switch to be accepted. These steps include receiving telegrams, sending remote control commands, verifying and executing commands, and recording relevant information. This repetitive process ensures that each switch undergoes a complete acceptance process, improving the accuracy and reliability of the acceptance. In S803, the master station records key information during the acceptance process of each switch, including the time of remote control command sending, received telegram content, execution results, and any errors or exceptions. These records provide valuable data support for subsequent data analysis and report generation. After completing the acceptance of all switches, the master station begins to organize all the data collected during the acceptance process in S804. This includes summarizing the acceptance results of each switch, analyzing whether all switches have passed the acceptance, and whether there are any issues or trends that need special attention. This data organization helps to form a comprehensive understanding of the performance of the entire system. Next, in S805, the master station automatically generates an acceptance report using the organized data. This report clearly lists the acceptance results of each switch, including detailed information of success or failure, and any exceptions or errors. The report also contains some summary information, such as the overall success rate of acceptance, existing problems and improvement suggestions, etc. This report is an important output of the acceptance process, providing relevant personnel with comprehensive information about the status and performance of the system. Then, in S806, the generated acceptance report needs to be audited to ensure its accuracy and completeness. After passing the audit, the report will be distributed to relevant personnel or departments to understand the status and acceptance results of the system. This distribution mechanism helps to ensure that all relevant personnel can timely access the latest system information. Finally, in S807, the acceptance report is properly archived and backed up, ensuring long-term accessibility and traceability. When needed, the report can be easily consulted or restored. Archiving and backup are important parts of information management, helping to protect the integrity and security of data.

[0165] In S808, the system administrator or maintenance personnel should follow up on any problems or areas for improvement found during the acceptance process, which includes fixing faults, optimizing system configuration, updating software versions, etc., in addition, for important or complex problems, a team of experts needs to be organized for in-depth analysis and discussion to develop more effective solutions, at the same time, it is necessary to retest the relevant acceptance to ensure that the problem is properly solved and the stability and reliability of the system are guaranteed.

[0166] Overall, the working principle of this master station remote automatic acceptance method is to set up secondary equipment simulation devices at the station side, and use the communication between the devices and the monitoring host, remote device and master station to realize remote acceptance of circuit breakers or switch devices. First, in the system construction stage, the simulation device is deployed at the station side and connected with the monitoring host and remote device, and the remote device communicates with the master station through the dispatching data network. When starting the acceptance process, the simulation device sends the split bit remote signal to the switch to be accepted, with even SOE time to trigger the master station to start remote acceptance. Next, in the information recording and verification stage, the monitoring host and the master station record the received remote signal name, value and SOE time, and at the same time record the action graph element name, value and SOE time. By comparing the SOE time of these information, the system can associate and verify the consistency of the remote signal name and graph element name. If the verification is consistent, the monitoring host and the master station will determine the corresponding remote control object according to the graph element configuration and send the remote control closing command respectively. The secondary equipment simulation device will analyze and compare the remote control attributes of the monitoring host and the master station after receiving these commands. If the attributes are consistent, the simulation device will send the switch closing bit remote signal with odd SOE time. For special switch devices such as circuit breakers, the simulation device will also send the split bit remote signal and the interval accident total bit remote signal of the interval to which it belongs. The master station will verify the correct identification of the accident interval after receiving these remote signals to ensure that the system has accurate identification of the accident state. Subsequently, in the remote response and recording stage, the master station will send the corresponding remote control command (split or close) according to the received remote signal, and the simulation device will record the execution result of these remote control commands. Finally, in the cycle acceptance and report generation stage, the system will repeat the above steps until the acceptance of all switches is completed. The master station will sort out all the information in the acceptance process and automatically generate a detailed acceptance report for relevant personnel to review and analyze. This master station remote automatic acceptance method realizes the comprehensive acceptance of the remote control function of switch devices through the communication and cooperation between the simulation device and the master station, ensuring the stability and reliability of the system.

[0167] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0168] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, numerous modifications are possible without departing from the spirit and scope of the present application as delineated by the claims and their equivalents.

Claims

1. A master station remote control automatic acceptance method, characterized by, The method comprises the following steps: S1, system construction: a secondary device simulation device is arranged at the station side, the secondary device simulation device is connected to a monitoring host and a remote device, and the remote device is connected to a master station through a dispatching data network; S2, starting acceptance: the secondary device simulation device sends a split position remote signal of a switch to be accepted, and an even SOE time is attached, the split position remote signal is used to trigger the master station to start remote control acceptance of a single switch, and the switch includes a circuit breaker or a knife switch; S3, information recording and checking: the monitoring host and the master station record the name, value and SOE time of the received remote signal, and record the name, value and SOE time of the action graph element, and the consistency of the name of the remote signal and the name of the graph element is associated and checked through the unique SOE time; S4, sending a remote control command: if the name of the remote signal and the name of the graph element are consistent, the monitoring host and the master station obtain the corresponding remote control object according to the graph element configuration, and send a remote control closing command respectively; S5, remote control attribute checking: after receiving the remote control closing command, the secondary device simulation device analyzes and compares the remote control attributes of the monitoring host and the master station, and if they are consistent, the secondary device simulation device sends a switch closing position remote signal and attaches an odd SOE time; S6, fault simulation and checking: if the switch is a circuit breaker, the secondary device simulation device continues to send the split position remote signal of the switch and the interval accident total closing position remote signal of the interval to which the switch belongs to the master station, and the master station checks the identification correctness of the accident interval after receiving the remote signal; S7, remote control response and recording: the master station sends a corresponding remote control command to open or close according to the received remote signal, and the secondary device simulation device records the acceptance result; S8, cycle acceptance and report generation: repeat the above steps to complete the acceptance of all switches, and the master station generates an acceptance report automatically by arranging the information in the acceptance process.

2. The method of claim 1, wherein the master station remotely controls the automatic acceptance, and The step S1 specifically comprises the following steps: S101, preparing a secondary device simulation device: selecting or designing a simulation device that conforms to the communication protocol of the secondary device of the substation, to ensure that the simulation device can simulate the communication behavior of the secondary device of the substation, and the secondary device of the substation includes a relay protection device and a measurement and control device; S102, connecting to a monitoring host: connecting the secondary device simulation device to the monitoring host through a communication interface and configuring communication parameters, and the communication interface includes an Ethernet interface or a serial port; S103, connecting to a remote device: connecting the secondary device simulation device to the remote device and configuring the communication parameters between the remote device and the simulation device; S104, configuring the connection between the remote device and the master station: the remote device establishes a connection with the master station through a dispatching data network, and the network parameters of the remote device are configured, including an IP address and a port number, so as to communicate with the master station; S105, verifying the communication link: after the connection is completed, it is verified whether the communication link between the simulation device, the monitoring host, the remote device and the master station is normal; S106, configuring the simulation device: configuring the related parameters of the simulation device according to the actual configuration and needs of the substation, and the related parameters of the simulation device include the type, quantity and communication protocol of the simulated secondary device; S107, system initialization: after all connections and configurations are completed, the secondary device simulation device starts to simulate the secondary equipment of the total station, all remote signaling initial values are split, and the monitoring host and the main station are waited to complete the communication connection to ensure that all devices are in normal working state.

3. The method of claim 1, wherein the master station remotely controls the automatic acceptance, and The step S2 specifically comprises the following steps: S201, selecting a switch to be accepted: first, determine the circuit breaker or knife switch that needs to be remotely accepted; S202, generating split position remote signaling: the secondary device simulation device generates corresponding split position remote signaling according to the selected switch, and the split position remote signaling is used to indicate the state that the switch is currently in the split position; S203, accompanying even SOE time: in the generated split position remote signaling, an even SOE time is attached, wherein the SOE time refers to the time stamp of the event sequence record, which is used to mark the sequence and time of the event occurrence, and the even SOE time is used as an identifier to trigger the main station to start the remote acceptance of a single switch; S204, sending split position remote signaling: the generated split position remote signaling with even SOE time is sent to the monitoring host and the remote device, and the remote device forwards the remote signaling to the main station through the dispatching data network; S205, triggering the main station to accept: after the main station receives the split position remote signaling with even SOE time, the corresponding acceptance process is started, including recording the received remote signaling information, checking the graphic element configuration, and sending a remote control command.

4. The method of claim 1, wherein the master station remotely controls the automatic acceptance, and The step S3 specifically comprises the following steps: S301, recording remote signaling information: when the monitoring host and the main station receive the remote signaling sent by the secondary device simulation device, the name, value and attached SOE time of the remote signaling are recorded respectively; S302, recording action graphic element information: the monitoring host and the main station record the name, value and SOE time of the action graphic element, which represents the graphic element associated with the remote signaling in the monitoring system; S303, associating information based on SOE time: the monitoring host and the main station associate the remote signaling information with the action graphic element information by comparing the recorded SOE times; S304, checking the consistency of the remote signaling name and the graphic element name: after the association is completed, the monitoring host and the main station check the consistency of the remote signaling name and the action graphic element name, and if the consistency of the remote signaling name and the graphic element name is found to be inconsistent, the system issues a warning or an error prompt so that the operator can further check and adjust; S305, recording and checking the results: the monitoring host and the main station record and check the results.

5. A method of remote automatic acceptance by a master station according to claim 4, characterized in that, When the SOE time comparison and checking are performed, the time resolution of the SOE time is not greater than 2 ms.

6. The method of claim 1, wherein, The step S4 specifically comprises the following steps: S401, confirming the checking result: the monitoring host and the main station confirm the consistency result of the remote signaling name and the graphic element name checked in step S3, and when the checking result is consistent, the subsequent remote control command sending operation is continued to be performed; S402, obtaining a remote control object: based on the action graphic element information recorded in step S3, the monitoring host and the main station obtain the corresponding remote control object according to the graphic element configuration; S403, generating a remote control closing command: based on the obtained remote control object, the monitoring host and the master station generate a remote control closing command, the remote control attribute information of the remote control closing command includes the identification of the remote control object, the instruction of the closing operation, the priority, and the execution time; S404, sending the remote control closing command: the monitoring host sends the generated remote control closing command to the remote device, and the remote device forwards the command to the circuit breaker or the switch after receiving the command, and the master station sends the same remote control closing command to the circuit breaker or the switch directly or through the remote device; S405, waiting for response and recording: after sending the remote control closing command, the monitoring host and the master station wait for the response of the circuit breaker or the switch, and record the response event and its timestamp once the response is received; S406, checking the execution result: after receiving the response of the circuit breaker or the switch, the monitoring host and the master station check whether the execution result is consistent with the expectation, and if the checking result is inconsistent, an alarm is triggered or other error handling process is performed.

7. The method of claim 1, wherein the master station remotely controls the automatic acceptance, and The step S5 specifically includes the following steps: S501, receiving the remote control closing command: the secondary equipment simulation device receives the remote control closing command sent by the monitoring host and the master station; S502, analyzing the remote control closing command: the secondary equipment simulation device analyzes the received remote control closing command and extracts the remote control attribute information therein; S503, comparing the remote control attribute: the secondary equipment simulation device compares whether the remote control attribute information in the remote control closing command sent by the monitoring host and the master station is consistent; S504, checking result judgment: if the remote control attribute information is consistent, the secondary equipment simulation device judges that the checking is passed, and continues to execute the subsequent steps, and if the remote control attribute information is inconsistent, error handling or abnormality reporting is performed; S505, sending the switch closing remote signal: when the checking is passed, the secondary equipment simulation device sends the switch closing remote signal through the communication interface to notify the system that the switch has been successfully closed; S506, attaching an odd SOE time: in the sent switch closing remote signal, the secondary equipment simulation device attaches an odd SOE time, which is used to uniquely identify the event, facilitating subsequent event sequence analysis and recording; S507, waiting for confirmation and recording: the secondary equipment simulation device waits for the confirmation of the system on the switch closing remote signal, and records the event and the attached odd SOE time.

8. The method of claim 1, wherein the master station remotely controls the automatic acceptance, and The step S6 specifically includes the following steps: S601, sending the split position remote signal by the simulation device: when it is determined that the switch is a circuit breaker, the secondary equipment simulation device simulates the split position state of the circuit breaker and sends the corresponding split position remote signal, which is used to indicate that the circuit breaker is currently in the split position; S602, sending the interval accident total closing remote signal: the secondary equipment simulation device sends the interval accident total closing remote signal of the interval, which is used to indicate that an accident has occurred in the interval, and all related accident signals have been combined into a total accident signal; S603, the master station receives and analyzes the remote signaling: the master station receives the secondary device analog device sent the split bit remote signaling and interval accident total bit remote signaling, and analyzes, the master station extracts the key information in the remote signaling, including the circuit breaker identification, the split bit state, the interval identification and the accident total bit state; S604, check the identification correctness of the accident interval: the master station checks the identification correctness of the accident interval according to the received remote signaling information, the master station checks whether the interval indicated in the accident total bit remote signaling matches the expected accident interval, and verifies whether the circuit breaker indicated in the split bit remote signaling is indeed located in the interval and whether its state is consistent with the accident total bit remote signaling; S605, record and feedback: if the verification result is correct, the master station records this event and feeds back the related information to the operator or system administrator, if the verification result is incorrect, the master station triggers an alarm or error handling process.

9. The method of claim 1, wherein the master station remotely controls the automatic acceptance, and The step S7 specifically includes the following steps: S701, the master station receives and analyzes the remote signaling: the master station receives the remote signaling from the secondary device analog device, which reflects the state of the switch and the accident signal, and the master station analyzes the remote signaling to extract the key state information; S702, the master station sends remote control command: based on the analyzed remote signaling information, the master station judges the state of the current switch and sends the corresponding remote control command according to the need, if the switch needs to be opened, the master station sends the split command; if the switch needs to be closed, the master station sends the closing command; S703, the analog device receives the remote control command: the secondary device analog device receives the remote control command sent by the master station and decodes and verifies it to ensure the accuracy and integrity of the command; S704, the analog device executes the remote control command: after verification, the secondary device analog device executes the corresponding split or closing operation according to the remote control command; S705, the analog device records the acceptance result: after executing the remote control command, the secondary device analog device records the execution result, including the type of command split or closing, execution time, and whether the execution is successful; S706, feedback execution result: the secondary device analog device feeds back the execution result to the master station, so that the master station confirms the execution of the remote control command and performs the necessary subsequent operation or record.

10. The method of claim 1, wherein the master station remotely controls the automatic acceptance, and The step S8 specifically includes the following steps: S801, initialize the loop: the master station or the automation system starts a loop process for traversing all switches that need to be accepted; S802, repeat the acceptance steps: for each switch to be accepted, the system repeats steps S1 to S7; S803, record acceptance information: during the acceptance process of each switch, the master station records key information, including the sending time of the remote control command, the received remote signaling content, the execution result, and any errors or abnormal situations; S804, sort acceptance data: when the acceptance of all switches is completed, the master station will sort all the data collected during the acceptance process, including summarizing the acceptance result of each switch, analyzing whether all switches pass the acceptance, and whether there are any problems or trends that need special attention; S805, generating acceptance report: the main station uses the sorted data to automatically generate an acceptance report, including detailed information of success or failure, any abnormal or error condition, the overall success rate of acceptance, possible problems and improvement suggestions; S806, auditing and distributing acceptance report: the generated acceptance report is audited, and after the audit is passed, the report is distributed to relevant personnel or departments; S807, archiving and backup: the acceptance report should be properly archived and backed up so that it can be easily consulted or recovered when needed; S808, subsequent processing: if any problems or improvements are found during the acceptance process, the system administrator or maintenance personnel take appropriate measures to repair or improve, and re-perform relevant acceptance tests to ensure the stability and reliability of the system.

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