Remote closed-loop control method and system suitable for multiple cooperation modes

Abstract

The invention discloses a remote closed-loop control method and system suitable for multiple cooperation modes, and the method comprises the steps: constructing a protection information system based on a subscription / release mechanism, and enabling the protection information system to carry out the information interaction with a dispatching order issuing system based on a selected cooperation mode; the scheduling command issuing system sends a remote control task to the information protection system; the information protection system extracts key information of the control task based on a preset operation content extraction template; inputting the control task, the feature character and the operation content into a preset operation sequence generation model to obtain an operation sequence; selecting and executing a security check standard based on the cooperation mode; executing the operation sequence; according to a preset early warning rule and a threshold value, whether risks exist in the operation sequence execution process or not is judged, if yes, an alarm is given, and a control strategy is automatically adjusted; the key information comprises feature characters and operation content; and returning an execution result to the scheduling command issuing system. The system has the advantages of high information real-time performance, high system response speed, high safety, high reliability and high practicability.

Description

Technical Field

[0001] This invention relates to the field of power system monitoring technology, specifically to a remote closed-loop control method and system adaptable to multiple collaborative modes. Background Technology

[0002] When performing dispatching switching and operation mode (primary) switching control, the related secondary control business processes are usually initiated offline by the secondary business, and the actual operation is completed independently by the secondary business. The secondary operation information is communicated offline, which is inefficient and suffers from inaccurate information and delays in information exchange, thus increasing the risk of misoperation.

[0003] Users in different regions and different business operations have different requirements for security verification. Therefore, it is necessary to flexibly adapt to security control verification requirements in order to improve the convenience of operation while ensuring security.

[0004] CN106532660A discloses a master station system, remote system, and control method for modifying relay settings. The master station system includes a security verification module, a setting request module, a setting setting module, an audit module, and a transmission module. The setting request module issues a setting request and obtains a corresponding setting task based on a first relay protection setting. The security verification module sets the setting setting module or audit module to a working state based on requests from external personnel and hardware encryption devices. The setting setting module selects a setting task and obtains a second relay protection setting corresponding to the task. The audit module audits the second relay protection setting and issues a relay protection application request. However, the source of the setting modification task in this patent is unclear, the master station system can freely initiate remote control operations, there is a lack of effective supervision, and the remote control task fails to be linked with the scheduling system for initial control, resulting in low work efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, such as low efficiency, high risk of misoperation, and low ease of operation, this invention provides a remote closed-loop control method and system adaptable to multiple collaborative modes.

[0006] The present invention adopts the following technical solution.

[0007] This invention discloses a remote closed-loop control method adaptable to multiple cooperative modes, comprising:

[0008] The guarantee system is constructed based on a subscription / publishing mechanism. The guarantee system interacts with the scheduling and commanding system based on a selected collaborative mode. The collaborative mode includes the scheduling and commanding system master control mode and the guarantee system master control mode.

[0009] The dispatching and issuing system sends remote control tasks to the information security system;

[0010] The security system extracts key information of the control task based on a preset operation content extraction template; it inputs the control task, feature characters, and operation content into a preset operation sequence generation model to obtain the operation sequence; it selects and executes security check standards based on a collaborative mode, and then executes the operation sequence; according to preset warning rules and thresholds, it determines whether there is a risk during the execution of the operation sequence. If there is, it issues an alarm and automatically adjusts the control strategy; the key information includes feature characters and operation content.

[0011] After the remote control task is completed, the security information system will return the execution result to the dispatching and issuing system.

[0012] More preferably,

[0013] The preset operation content extraction template includes preset feature characters and corresponding operation content; each preset feature character is updated according to the feature character importance coefficient calculated in real time.

[0014] More preferably,

[0015] The insurance information system extracts key information for control tasks based on preset operation content extraction templates:

[0016] When the characteristic characters in the control task include "setting / execution / download" + "protection / device" + "setting sheet / setting sheet", the operation content is determined to be remote modification of the setting; " / " represents "OR" logic, and "+" represents "AND" logic;

[0017] When the characteristic characters in the control task include "activate / deactivate" + "protection / device, pressure plate", it is determined that the operation content is remote modification of the pressure plate;

[0018] When the characteristic characters in the control task include "switch / set" + "protection / device" + "set value area", the operation content is determined to be remote switching of the set value area.

[0019] More preferably,

[0020] The preset feature characters are updated based on the real-time calculated feature character importance coefficients, including:

[0021] Real-time calculation of the importance coefficient of each feature character;

[0022] When the importance coefficient of a certain feature character is greater than the set importance threshold, the feature character is recorded as a standard character, and the text of the feature character is segmented to obtain each sub-text.

[0023] Calculate the importance coefficient of each subtext and take the subtext with the highest importance coefficient as the new feature character.

[0024] More preferably,

[0025] The importance coefficient A is set based on the execution frequency of the feature character / subtext and the shortest edit distance to each standard character, as shown in the following formula:

[0026] A = P e +P s ×P e

[0027] Among them, P e For editing distance correlation coefficient; P s To use the frequency correlation coefficient.

[0028] More preferably,

[0029] When calculating the importance coefficient of a certain feature character / subtext, the edit distance correlation coefficient is shown in the following formula:

[0030]

[0031] Where, d w S is the edit distance from the feature character / subtext to the corresponding standard character. l The standard character is the one corresponding to the feature character / subtext, and the maximum string length in the feature character / subtext; the standard character is a standard term set for different feature characters with the same meaning.

[0032] More preferably,

[0033] When calculating the importance coefficient of a certain feature character / subtext, the frequency correlation coefficient is shown in the following formula:

[0034]

[0035] Where, n o n is the number of times the task for this feature character / subtext is executed. s This represents the total number of executions controlled by the same type as the feature character / subtext.

[0036] More preferably,

[0037] The security inspection standards include basic security requirements and customized security requirements.

[0038] More preferably,

[0039] Security inspection standards were selected based on a collaborative model, including:

[0040] When the collaborative mode is the master control mode of the scheduling and commanding system, the selected security check standard is the basic security requirement;

[0041] When the collaborative mode is the main control mode of the security information protection system, the selected security inspection standards include basic security requirements and customized security requirements.

[0042] More preferably,

[0043] The risks mentioned include potential risks and unusual situations.

[0044] More preferably,

[0045] Based on preset warning rules and thresholds, determine whether a risk exists. If a risk is found, issue an alarm and automatically adjust the control strategy, including:

[0046] When the number of consecutive controls by the dispatching command system or the information protection system exceeds the consecutive control threshold within the first set time period, a potential risk alarm is issued, and confirmation is waited for the control to be correct.

[0047] When the number of protection actions performed by the controlled secondary protection device during remote control exceeds or equals the set first protection threshold, an abnormal situation alarm is issued and the current operation is terminated.

[0048] When the number of Class 1 alarms exceeds the set first alarm threshold or the number of Class 2 alarms exceeds the set second alarm threshold during remote control, an abnormal situation alarm will be issued and the current operation will be terminated.

[0049] If the number of communication interruptions during remote control exceeds the set remote control threshold, an abnormal situation alarm will be issued and the current operation will be terminated.

[0050] Another aspect of this invention discloses a remote closed-loop control system based on a multi-cooperative remote closed-loop control method, comprising a multi-source system interaction module, a control task sending module, a secondary service extraction module, an intelligent security verification module, and a dynamic feedback monitoring module.

[0051] The multi-source system interaction module constructs a security information system based on a subscription / publishing mechanism. The security information system interacts with the scheduling and commanding system based on a selected collaborative mode.

[0052] The control task sending module sends remote control tasks from the scheduling and command system to the information protection system.

[0053] The secondary business extraction module of the insurance system extracts key information of the control task based on a preset operation content extraction template; the key information includes feature characters and operation content; the control task, feature characters and operation content are input into a preset operation sequence generation model to generate a corresponding operation sequence;

[0054] The intelligent security verification module selects and executes security check standards based on the collaborative mode, and then executes the operation sequence generated by the secondary business extraction module.

[0055] The dynamic feedback monitoring module determines whether there is a risk during the execution of the control operation sequence by the intelligent safety verification module, based on preset early warning rules and thresholds. If a risk exists, an alarm is issued and the control strategy is automatically adjusted. After the remote control task is completed, the execution result is returned to the scheduling and command system.

[0056] Another aspect of this application discloses an electronic device, including a processor and a storage medium; characterized in that:

[0057] The storage medium is used to store instructions;

[0058] The processor is used to operate according to the instructions to execute the remote closed-loop control method according to the aforementioned multi-cooperative approach.

[0059] This application also discloses a computer-readable storage medium having a computer program stored thereon, characterized in that the program, when executed by a processor, implements the remote closed-loop control method of the multiple cooperative modes.

[0060] The beneficial effects of this invention are compared with those of the prior art:

[0061] This invention reduces the communication requirements between external systems in different regions by constructing an efficient information channel, improves the real-time performance of information synchronization, and provides a solid foundation for precise control.

[0062] This invention continuously optimizes the information object recognition model through machine learning algorithms. As the running time increases, its recognition accuracy and efficiency will continue to improve, thereby further shortening the process time of control tasks and improving the system response speed.

[0063] This invention, through a three-dimensional security verification mechanism, can customize security strategies according to specific scenarios while meeting basic security requirements. It solves the problem of information silos in traditional remote collaborative control of primary and secondary equipment, effectively prevents misoperation and potential security risks, and ensures the safe execution of control tasks.

[0064] This invention achieves refined management and optimization of the control process through real-time monitoring and automatic adjustment of control strategies, effectively avoiding control failures caused by changes in system state and improving the stability and reliability of the system.

[0065] After the remote control task of this invention is completed, the task operation information will be returned to the scheduling and command system to complete the task loop.

[0066] In summary, this invention addresses the diverse requirements of users in different regions during scheduling operations and secondary equipment maintenance for remote modification of setpoints, remote zone switching, and remote activation / deactivation of control panels. By establishing flexible and configurable safety control and verification measures, it enables on-demand safety verification and closed-loop operation of remote secondary equipment operations. This ensures the safety of remote operations while also providing flexibility and convenience, thus enhancing the practicality of primary and secondary linkage control and providing safety assurance for primary and secondary automatic control. Attached Figure Description

[0067] Figure 1 This is a schematic diagram of the architecture of a remote closed-loop control method and system with multiple collaborative modes;

[0068] Figure 2 This is a schematic diagram of the dispatching and issuing system issuing control commands when the main control mode of the security information system is adopted;

[0069] Figure 3 This is a schematic diagram of a system collaboration mode that adopts the main control mode of the scheduling and command system. Detailed Implementation

[0070] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0071] This application discloses a remote closed-loop control method adaptable to multiple cooperative modes, including:

[0072] The guarantee system is built based on a subscription / publishing mechanism. The guarantee system interacts with the scheduling and commanding system based on a selected collaboration mode. The collaboration mode includes the scheduling and commanding system's master control mode and the guarantee system's master control mode. The collaboration mode can be selected by the user or according to the application scenario.

[0073] Preferably, the collaborative mode is selected based on the application scenario, including: when the application scenario is primary or secondary one-click sequential control, the collaborative mode with the scheduling and issuing system as the main control body is selected; when the application scenario is secondary maintenance, the collaborative mode with the information guarantee system as the main control body is selected. The main control body includes the information guarantee system and the scheduling and issuing system.

[0074] The dispatching and issuing system sends remote control tasks to the information security system;

[0075] The information security system extracts key information about control tasks based on a preset operation content extraction template. The preset operation content extraction template includes preset feature characters and corresponding operation content. Each preset feature character is updated based on a real-time calculated feature character importance coefficient. The key information includes feature characters and operation content.

[0076] The insurance information system extracts key information for control tasks based on preset operation content extraction templates:

[0077] When the characteristic characters in the control task include "setting / execution / download" + "protection / device" + "setting sheet / setting sheet", the operation content is determined to be remote modification of the setting; " / " represents "OR" logic, and "+" represents "AND" logic;

[0078] When the characteristic characters in the control task include "activate / deactivate" + "protection / device, pressure plate", it is determined that the operation content is remote modification of the pressure plate;

[0079] When the characteristic characters in the control task include "switch / set" + "protection / device" + "set value area", the operation content is determined to be remote switching of the set value area.

[0080] The preset feature characters are updated based on the real-time calculated feature character importance coefficients, including:

[0081] Real-time calculation of the importance coefficient of each feature character;

[0082] The importance coefficient A is set based on the execution frequency of the feature character / subtext and the shortest edit distance to each standard character, as shown in the following formula:

[0083] A = P e +P s ×P e

[0084] Among them, P e For editing distance correlation coefficient; P s To use the frequency correlation coefficient.

[0085] When calculating the importance coefficient of a certain feature character / subtext, the edit distance correlation coefficient is shown in the following formula:

[0086]

[0087] Where, d w S is the edit distance from the feature character / subtext to the corresponding standard character. lThe standard character is the one corresponding to the feature character / subtext, and the maximum string length in the feature character / subtext. The standard character is a standard term set for different feature characters with the same meaning. For example, the standard character for feature characters such as execution value order, application value order, and input value order can be set as execution value order. Each feature character has its corresponding standard character.

[0088] When calculating the importance coefficient of a certain feature character / subtext, the frequency correlation coefficient is shown in the following formula:

[0089]

[0090] Where, n o n is the number of times the task for this feature character / subtext is executed. s This represents the total number of executions controlled by the same type as the feature character / subtext.

[0091] When the importance coefficient of a certain feature character is greater than the set importance threshold, the feature character is recorded as a standard character (included in the standard character set), and the text of the feature character is segmented to obtain each sub-text; the preferred value range of the importance threshold is 90% to 95%;

[0092] Calculate the importance coefficient of each subtext and take the subtext with the highest importance coefficient as the new feature character.

[0093] The control task, characteristic characters, and operation content are input into a preset operation sequence generation model to obtain the operation sequence; a security check standard is selected and executed based on the collaborative mode, and then the operation sequence is executed.

[0094] The security inspection standards include basic security requirements and customized security requirements.

[0095] Security inspection standards were selected based on a collaborative model, including:

[0096] When the collaborative mode is the master control mode of the scheduling and commanding system, the selected security check standard is the basic security requirement;

[0097] When the collaborative mode is the main control mode of the security information protection system, the selected security inspection standards include basic security requirements and customized security requirements.

[0098] Based on preset warning rules and thresholds, it is determined whether there are risks during the execution of the operation sequence. If so, an alarm is issued and the control strategy is automatically adjusted. The risks include potential risks and abnormal situations.

[0099] Based on preset warning rules and thresholds, determine whether a risk exists. If a risk is found, issue an alarm and automatically adjust the control strategy, including:

[0100] When the number of consecutive controls by the dispatching system or the security system exceeds the consecutive control threshold within the set first time period, a potential risk alarm is issued, and confirmation is waited for the control to be correct; preferably, the set first time period is 20-60 seconds; the consecutive control threshold is 3 times.

[0101] When the number of operators and supervisors is less than the set threshold, a potential risk alarm is issued, and the number of personnel is awaited for confirmation; preferably, the threshold is 2 people.

[0102] When the number of protection actions generated by the controlled secondary protection device during remote control is greater than or equal to the set first protection threshold, an abnormal situation alarm is issued and the current operation is terminated; preferably, the first protection threshold is set to 1.

[0103] When the number of alarms of type 1 exceeds the set first alarm threshold during remote control, or the number of alarms of type 2 exceeds the set second alarm threshold, an abnormal situation alarm is issued and the current operation is terminated; preferably, the first alarm threshold is set to 1 and the second alarm threshold is set to 2.

[0104] If the number of communication interruptions during remote control exceeds the set remote control count threshold, an abnormal situation alarm is issued, and the current operation is terminated. Preferably, the remote control count threshold is set to 1.

[0105] After the remote control task is completed, the information protection system will return the execution result to the dispatching and issuing system. The execution result includes whether the execution was successful or unsuccessful.

[0106] Example 1

[0107] See Figure 1 A remote closed-loop control method adaptable to multiple cooperative modes according to an embodiment of this application includes the following steps:

[0108] Step S1: Construct a security information system based on a subscription / publishing mechanism. The security information system interacts with the scheduling and commanding system based on the selected collaborative mode. The scheduling and commanding system sends control tasks to the security information system.

[0109] The information protection system uses a publish / subscribe JMS service to interact with the scheduling and command system based on a selected coordination mode (DICP / DCCS).

[0110] Among them, remote control means remote control.

[0111] Table 1. Collaborative Modes and Identification Methods

[0112]

[0113] In the master control mode of the dispatching and commanding system, the dispatching and commanding system issues different control tasks to control the information protection system to execute the subsequent steps. After each step is completed, the information protection system transmits the execution result to the dispatching and commanding system and waits for the next control instruction from the dispatching and commanding system.

[0114] In the master control mode of the security information system, the dispatching and commanding system issues control tasks and authorizes the security information system to be the master control, and the security information system can execute the subsequent steps on its own.

[0115] The aforementioned information protection system is a system that ensures the accuracy of received information and provides a multilateral information interaction service based on a subscription / publishing mechanism. This multilateral information interaction service based on a subscription / publishing mechanism integrates messages and data from different scheduling and issuing systems to build a unified business interaction information channel and provide reliable message transmission services.

[0116] A unified business interaction channel utilizes JMS (ActiveMQ) service, independent of the scheduling and issuing system. JMS is a Java API for sending messages between applications, allowing them to communicate via message queues or topics (publish / subscribe model). JMS aims to facilitate asynchronous communication between loosely coupled systems, supporting reliable message passing and transaction processing. Interactive messages use JSON, a self-describing language, which is an unordered collection of key / value pairs. An object begins with "{" and ends with "}". Each key is followed by a colon (:"), and key / value pairs are separated by commas.

[0117] Example:

[0118]

[0119] This step is a crucial component of the entire remote closed-loop control method. In this step, the information protection system receives messages and data from the dispatching and commanding system (DICP / DCCS), and in step S2, converts the data information into standard operating instructions within the system, determining the subsequent error prevention and verification mode based on the operational task. This improves the system's flexibility and scalability while ensuring safety and controllability, and also serves as the basis for switching between different primary and secondary coordination methods and application scenarios in step S3.

[0120] Table 2 Examples of primary and secondary collaboration methods and application scenarios involved in the collaborative mode of this invention.

[0121]

[0122] JMS services include establishing communication connections, data encryption, data format conversion, information parsing, and verification. Through these steps, the information security system ensures that the control tasks received from the dispatching and commanding system are accurate, complete, and reliable, supporting subsequent control and error prevention decisions.

[0123] The control task is an operation task issued by the dispatching command system, such as: remotely executing the setting sheet No. 2024D-326 for the 728 switch protection device of the 10kV XX line of the 110kV XX station.

[0124] Step S2: The information protection system interprets and standardizes the received control tasks.

[0125] In step S2, the information protection system performs detailed analysis and processing on the received control tasks. This step mainly involves the interpretation and standardization of control task information to ensure that the system can accurately understand and execute the tasks. The interpretation and standardization of control task information involves preprocessing the collected control tasks from the scheduling and issuing system, identifying the target control object, constructing an operation sequence generation model based on machine learning algorithms, automatically identifying and recognizing the control object, and generating a programmed operation sequence. The machine learning algorithm can be Support Vector Machine (SVM), Recurrent Neural Network (RNN), Long Short-Term Memory Network (LSTM), etc., which can be selected by those skilled in the art.

[0126] like Figure 2 When the operation task is as shown in Example 1 or 2 below, and the control object identified by the security system is not completely determined, the security system operation sequence is generated by decomposing the task description. At this time, the collaborative mode of remote control operation is the security system master control mode. Before the security system takes actual control, after obtaining the DCCS / DICP control authorization through the intelligent security verification module, remote control begins.

[0127] When the operation task is as shown in Example 3 below, the security system can accurately identify the target device to be operated and the target value to be modified remotely. The system will automatically switch to DCCS / DICP as the master control mode. At this time, the system executes in DCCS / DICP as the master control mode. The corresponding intelligent security verification module adopts basic security error prevention. When it is ensured that the controlled target device in the security system is in a controllable state, the control authority is quickly transferred to the DCCS / DICP system after passing the error prevention verification.

[0128] Specifically, interpreting control task information means that the security system extracts templates based on preset operation content, matches and parses the control tasks, and extracts key information, including characteristic characters and operation content. Template examples are shown in Table 3.

[0129] Table 3 Preset operation content extraction template

[0130]

[0131] If the received control task cannot match the preset template, an early warning message is generated, and the control task is input into the expert system. The expert system extracts key feature characters and generates a new template and operation sequence. The key feature characters in the template will automatically expand and form a richer feature set as the number of remote control operations increases.

[0132] Based on machine learning algorithms, an operation sequence generation model is constructed to automatically identify and control objects and generate programmed operation sequences.

[0133] This invention improves recognition accuracy by dynamically changing the importance coefficient of feature characters through a graph knowledge base accumulated during the task extraction and recognition process.

[0134] The feature character set consists of feature characters with consistent control objectives. These feature character sets form a knowledge graph, serving as a subset of the standard character set. Standard characters are pre-defined technical terms related to relay protection; they may have the same meaning as the feature characters or be higher-level concepts than the feature characters.

[0135] The importance coefficient A is set based on the execution frequency of the feature character / subtext and the shortest edit distance to each standard character, as shown in the following formula:

[0136] A = P e +P s ×P e

[0137] Among them, P e For editing distance correlation coefficient; P s To use the frequency correlation coefficient.

[0138] When calculating the importance coefficient of a certain feature character / subtext, the edit distance correlation coefficient is shown in the following formula:

[0139]

[0140] Where, d w S is the edit distance from the feature character / subtext to the corresponding standard character. l The standard character is the one corresponding to the feature character / subtext, and the maximum string length in the feature character / subtext. The standard character is a standard term set for different feature characters with the same meaning. For example, the standard character for feature characters such as execution value order, application value order, and input value order can be set as execution value order. Each feature character has its corresponding standard character.

[0141] Among them, the feature characters are key information extracted from the operation task, the standard characters are preset professional technical terms related to relay protection, and the maximum character length is the longest string length among the feature characters and the standard characters.

[0142] When calculating the importance coefficient of a certain feature character / subtext, the frequency correlation coefficient is shown in the following formula:

[0143]

[0144] Where, n o n is the number of times the task for this feature character / subtext is executed. s This represents the total number of executions controlled by the same type as the feature character / subtext.

[0145] This type of control can be determined by the edit distance to the standard character, machine learning model, etc. Those skilled in the art should know how to obtain the total number of executions of the same type of control as the feature character / subtext, which will not be elaborated here.

[0146] For example, when the standard character is used to execute a fixed value sheet, the characteristic character knowledge diagram is shown in Table 4:

[0147] Table 4 Examples of Characteristic Character Knowledge Graphs

[0148] Serial Number Input characters Characteristic characters Standard characters Control type 1 Execute setting order No. XXX Execution of set value sheet Execution of set value sheet Remote control setpoint 2 Application of order number XXX Application configuration order Execution of set value sheet Remote control setpoint 3 Input XXX value sheet Input value sheet Execution of set value sheet Remote control setpoint

[0149] The growth rule of the feature character set, taking remote control fixed value as an example:

[0150] Input character -> Importance coefficient calculation -> Threshold: 1. If the importance coefficient exceeds 90% (can be set), the input character text will be segmented into sub-texts, and the importance coefficient of all segmented sub-texts will be recalculated. The group with the highest importance coefficient will be included in the feature label character set; 2. If the importance coefficient is less than 90%, the existing character set will be used to identify the control type.

[0151] The operation sequence generation model is trained. During the training process, the input of the operation sequence generation model is the control task table, feature characters and operation content, and the output is the operation object in the control task table, the specific content of the operation, and the procedural operation sequence obtained from the expert database.

[0152] Example 1 of analyzing and processing control tasks:

[0153] When the security information system is the main control system, the control tasks received by the security information system are shown in Table 5 as an example 1:

[0154] Table 5 Example 1 of control tasks received by the system

[0155]

[0156] The operation sequence generation model identifies operation type, operation object, and operation content, and generates a programmed operation sequence.

[0157] Operation type identification: Characteristic characters indicate execution, protection, or setting.

[0158] Operation target identification: 728 switch protection device of XX station XX line;

[0159] The specific details of the operation are as follows: remote execution of a setpoint order, setpoint order number 2024D-326;

[0160] The operation sequence is shown in Table 6:

[0161] Table 6 shows the operation sequence for implementing Example 1 of the control task.

[0162]

[0163]

[0164] Example 2 of analyzing and processing control tasks:

[0165] like Figure 2 When the security information system is the main control system, the control tasks received by the security information system are shown in Table 7 as an example 2:

[0166] Table 7 Example 2 of control tasks received by the system

[0167]

[0168] Operation type identification: Keywords: distant, input, soft pressure plate;

[0169] Operation target identification: XX station XX line 635 busbar protection device;

[0170] Operation content recognition: Remote input pressure plate, differential soft pressure plate;

[0171] The operation sequence is shown in Table 8:

[0172] Table 8 shows the operation sequence for implementing control task example 2.

[0173] Serial Number step 1 Dispatch commands are issued to perform basic and customized security checks. 2 Check the condition of the soft pressure plate of the device 3 Check the condition of the rigid plate of the device 4 Check the status of the device control panel 5 Verify the plant and bay to which the equipment belongs. 6 Verify device communication status 7 Status of primary equipment associated with the device (maintenance / operation) 8 The device has no unconfirmed action reports. 9 The device has no Level 1 or Level 2 alarms. 10 Device behavior status (no summoning, local control switching) 11 Remote dual-machine monitoring 12 Gateway license 13 Execute differential soft pressure plate 14 Check the current status of the soft pressure plate. 15 Remote control execution result receipt

[0174] Example 3 of analyzing and processing control tasks:

[0175] As the control entity, DCCS / DICP is shown in Example 3 of the control task received by the information protection system:

[0176] As shown in Table 9, this is the control task for Example 3:

[0177] Table 9 Example 3 of Control Task

[0178]

[0179]

[0180] The main station determines the control type (soft control panel or setpoint) based on the type in the control task; it uniquely identifies the controlled device and the specific control entry in the device based on the device identifier and object name; after the entry is determined, when DCCS / DICP starts executing the first and second sequential control, the main station will directly execute the control entry after the basic safety verification is passed.

[0181] like Figure 3 In the collaborative mode, DCCS / DICP acts as the master control unit, responsible for issuing scheduling and control commands. The information protection system executes these commands directly, and performs basic safety checks based on anti-error strategies. The main anti-error work is undertaken by DCCS / DICP. The operational steps include:

[0182] The Dispatch Control System (DCCS) issues operation commands to the primary-side OCS switch operating system and the secondary-side protection and control system. The primary side includes control switches, disconnectors, circuit breakers, etc.; the secondary side consists of the corresponding protection devices.

[0183] After the system has passed a safety verification, the actual control switch and disconnector are activated.

[0184] After a control operation is completed, the real-time status data is transmitted to the secondary system and the scheduling and command system via an interface.

[0185] After receiving the real-time cross-sectional information from the primary system, the secondary system records it in the information of the secondary protection device associated with the target circuit breaker, and waits for subsequent verification.

[0186] The dispatcher issued a secondary system verification command;

[0187] The secondary system verifies the protection status of the target circuit breaker (after basic and customized safety) and sends the status (maintenance / operation) of the primary equipment associated with the device to the dispatching system.

[0188] The dispatcher issues execution commands to the secondary system.

[0189] The secondary system performs remote control of circuit breaker protection, such as switching setting zones and enabling / disabling pressure plates;

[0190] The secondary system sends the execution information feedback to the scheduling system, thus completing the task loop.

[0191] Step S3: Select and execute security check standards based on the collaborative mode, and then execute the operation sequence generated by the operation sequence generation model;

[0192] Establish "basic security requirements" and "customized security requirements" to implement differentiated security certification and licensing for secondary operation tasks in different scenarios, thereby improving the continuity and timeliness of the operation process.

[0193] The security verification mechanism comprises two parts: basic security requirements and customized security requirements. Basic security requirements are the fundamental security standards that the system must meet, such as remote control soft control panels, remote operation hard control panels, remote operation control boards for the equipment, and the plant / bay to which the equipment belongs. Customized security requirements, on the other hand, are security strategies flexibly set according to specific scenarios and business needs, such as the status of primary equipment associated with the equipment, the absence of anomalies in equipment inspection information (setpoints, control panels, analog quantities), and the absence of unconfirmed action reports from the equipment. By implementing differentiated security authentication and licensing for control tasks, the system can ensure improved operational convenience and flexibility while meeting security requirements.

[0194] This invention automatically switches security verification requirements based on the collaborative mode;

[0195] When the collaborative mode is DCCS / DICP master control mode, the "basic security check" strategy is adopted to quickly verify the remote control conditions of the target device. The basic security check targets the substation secondary protection equipment (line protection, bus protection, bus tie protection, main transformer protection, etc.).

[0196] Basic safety requirements (secondary protection equipment) are shown in Table 10:

[0197] Table 10 Basic Safety Requirements

[0198] Serial Number project 1 Remotely control the status of the soft pressure plate (engaged / deactivated). 2 Remotely control the status of the hard platen (engaged / disengaged). 3 Device remote control panel status (enabled / disabled) 4 Device communication status (on / off) 5 Device malfunction, locked state (closed / open)

[0199] When the collaborative mode is the main control mode of security assurance, the strategy of "basic security check" + "customized security check" is adopted to conduct a detailed security check on the target device to prevent miscontrol and false control.

[0200] The basic safety inspection targets the secondary protection equipment of the substation (line protection, bus protection, bus tie protection, main transformer protection, etc.).

[0201] Customized safety requirements (secondary protection equipment) are shown in Table 11:

[0202] Table 11 Customized Safety Requirements

[0203]

[0204]

[0205] Step S4: Monitor the task execution status of the operated object and the changes in the power system status in real time. Based on the preset early warning rules and thresholds, automatically adjust the control strategy or trigger the emergency response mechanism to ensure the stable achievement of control objectives and system safety.

[0206] As shown in Table 12, during the execution of control tasks, the power protection system monitors the task execution status and power system status changes in real time. Upon detecting any anomalies or potential risks, the system will immediately and automatically adjust the control strategy or terminate the operation to ensure the stable achievement of control objectives and system safety. For example, when receiving a task from the dispatch command system (DICS / DCCS) to execute a remote switching of setting zones, the entire remote control task is expected to take 15 minutes. If a protection action event is detected in the controlled secondary protection device (such as circuit breaker protection) at this time, indicating an anomaly, the setting zone switching operation must be immediately terminated, and the control strategy adjusted to maintain the original device operating state. The linkage task can only be executed again after the action event is confirmed. If an action event occurs in a non-controlled secondary protection device (such as line protection) at the same station, indicating a potential risk, the control strategy is adjusted to immediately suspend the linkage task, and the monitoring results are sent back to the dispatch command system for confirmation.

[0207] Table 12 Monitoring Strategies and Thresholds

[0208]

[0209]

[0210] Triggering the warning rule will pause the linkage process and issue an alarm. The alarm duration is based on statistical analysis of historical remote control operation records. For example, if the main transformer protection attempts to control the trip matrix setting multiple times within one hour without success, the warning period will be automatically extended. The extension rule is the number of executions multiplied by the average time of a single execution, in order to reduce the interference of the warning on the linkage process.

[0211] Based on real-time monitoring of the controlled object's topology, the protection and information system can dynamically assess the safety and reliability during task execution. If the system detects any factors that may affect task execution or power system safety, such as action events, self-test alarms, communication interruptions, or analog quantity abrupt changes during remote control, it will take swift action based on expert database knowledge, such as suspending or terminating the task, to minimize potential losses and risks. For example, if action events, self-test alarms, communication interruptions, or analog quantity abrupt changes occur at a protection device at the same station or at a station belonging to the same primary equipment, remote control should be immediately suspended until the alarm or event is confirmed before execution can resume. If the controlled protection device experiences the above situation, remote control must be terminated immediately.

[0212] A panoramic, visual monitoring interface is constructed to facilitate dispatchers and maintenance personnel in quickly grasping the power grid's operational status and the progress of collaborative tasks. The system presents the complex power grid operational status and collaborative task progress to dispatchers and maintenance personnel in an intuitive and clear manner. It not only provides real-time power grid data and control task information but also supports the playback and analysis of historical data, assisting personnel in better understanding the dynamic changes in the power grid and the execution of control processes, ensuring stable power grid operation.

[0213] This application also discloses a remote closed-loop control system based on a remote closed-loop control method, including a multi-source system interaction module, a control task sending module, a secondary service extraction module, an intelligent security verification module, and a dynamic feedback monitoring module:

[0214] The multi-source system interaction module constructs a security information system based on a subscription / publishing mechanism. The security information system interacts with the scheduling and commanding system based on a selected collaborative mode.

[0215] The control task sending module sends remote control tasks from the scheduling and command system to the information protection system.

[0216] The secondary business extraction module of the insurance system extracts key information of the control task based on a preset operation content extraction template; the key information includes feature characters and operation content; the control task, feature characters and operation content are input into a preset operation sequence generation model to generate a corresponding operation sequence;

[0217] The intelligent security verification module selects and executes security check standards based on the collaborative mode, and then executes the operation sequence generated by the secondary business extraction module.

[0218] The dynamic feedback monitoring module determines whether there is a risk during the execution of the control operation sequence by the intelligent safety verification module, based on preset early warning rules and thresholds. If a risk exists, an alarm is issued and the control strategy is automatically adjusted. After the remote control task is completed, the execution result is returned to the scheduling and command system.

[0219] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0220] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0221] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0222] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0223] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A remote closed-loop control method adaptable to multiple cooperative modes, characterized in that, include: The guarantee system is built based on a subscription / publishing mechanism, and the guarantee system interacts with the scheduling and command system based on the selected collaborative mode. The collaborative modes include the scheduling and command issuing system master control mode and the information security system master control mode; The dispatching and issuing system sends remote control tasks to the information security system; The information security system extracts key information for control tasks based on preset operation content extraction templates; The control task, characteristic characters, and operation content are input into a preset operation sequence to generate a model and obtain the operation sequence. Based on the collaborative mode, the safety inspection standards are selected and executed, and then the operation sequence is executed; according to the preset warning rules and thresholds, it is determined whether there is a risk during the execution of the operation sequence. If there is, an alarm is issued and the control strategy is automatically adjusted. The key information includes characteristic characters and operation content; After the remote control task is completed, the security information system will return the execution result to the dispatching and issuing system.

2. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 1, characterized in that: The preset operation content extraction template includes preset feature characters and corresponding operation content; each preset feature character is updated according to the feature character importance coefficient calculated in real time.

3. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 1 or 2, characterized in that: The insurance information system extracts key information for control tasks based on preset operation content extraction templates: When the characteristic characters in the control task include "setting / execution / download" + "protection / device" + "setting sheet / setting sheet", the operation content is determined to be remote modification of the setting; " / " represents "OR" logic, and "+" represents "AND" logic; When the characteristic characters in the control task include "activate / deactivate" + "protection / device, pressure plate", the operation content is determined to be remote modification of the pressure plate; When the characteristic characters in the control task include "switch / set" + "protection / device" + "set value area", the operation content is determined to be remote switching of the set value area.

4. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 2, characterized in that: The preset feature characters are updated based on the real-time calculated feature character importance coefficients, including: Real-time calculation of the importance coefficient of each feature character; When the importance coefficient of a certain feature character is greater than the set importance threshold, the feature character is recorded as a standard character, and the text of the feature character is segmented to obtain each sub-text. Calculate the importance coefficient of each subtext and take the subtext with the highest importance coefficient as the new feature character.

5. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 2 or 4, characterized in that: The importance coefficient A is set based on the execution frequency of the feature character / subtext and the shortest edit distance to each standard character, as shown in the following formula: A=P e +P s ×P e Among them, P e For editing distance correlation coefficient; P s To use the frequency correlation coefficient.

6. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 5, characterized in that: When calculating the importance coefficient of a certain feature character / subtext, the edit distance correlation coefficient is shown in the following formula: Where, d w S is the edit distance from the feature character / subtext to the corresponding standard character. l The standard character is the one corresponding to the feature character / subtext, and the maximum string length in the feature character / subtext; the standard character is a standard term set for different feature characters with the same meaning.

7. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 5, characterized in that: When calculating the importance coefficient of a certain feature character / subtext, the frequency correlation coefficient is shown in the following formula: Where, n o n is the number of times the task for this feature character / subtext is executed. s This represents the total number of executions controlled by the same type as the feature character / subtext.

8. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 1, characterized in that: The security inspection standards include basic security requirements and customized security requirements.

9. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 1 or 8, characterized in that: Security inspection standards were selected based on a collaborative model, including: When the collaborative mode is the master control mode of the scheduling and commanding system, the selected security check standard is the basic security requirement; When the collaborative mode is the main control mode of the security information protection system, the selected security inspection standards include basic security requirements and customized security requirements.

10. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 1, characterized in that: The risks mentioned include potential risks and unusual situations.

11. The remote closed-loop control method adaptable to multiple cooperative modes according to claim 1 or 10, characterized in that: Based on preset warning rules and thresholds, determine whether a risk exists. If a risk is found, issue an alarm and automatically adjust the control strategy, including: When the number of consecutive controls by the dispatching command system or the information protection system exceeds the consecutive control threshold within the first set time period, a potential risk alarm is issued, and confirmation is waited for the control to be correct. When the number of protection actions performed by the controlled secondary protection device during remote control exceeds or equals the set first protection threshold, an abnormal situation alarm is issued and the current operation is terminated. When the number of Class 1 alarms exceeds the set first alarm threshold or the number of Class 2 alarms exceeds the set second alarm threshold during remote control, an abnormal situation alarm will be issued and the current operation will be terminated. If the number of communication interruptions during remote control exceeds the set remote control threshold, an abnormal situation alarm will be issued and the current operation will be terminated.

12. A remote closed-loop control system adapting to multiple cooperative modes, utilizing the remote closed-loop control method adapting to multiple cooperative modes as described in any one of claims 1-11, characterized in that, It includes a multi-source system interaction module, a control task sending module, a secondary service extraction module, an intelligent security verification module, and a dynamic feedback monitoring module. The multi-source system interaction module constructs a security information system based on a subscription / publishing mechanism. The security information system interacts with the scheduling and commanding system based on a selected collaborative mode. The control task sending module sends remote control tasks from the scheduling and command system to the information protection system. The secondary business extraction module of the credit guarantee system extracts key information of the control task based on a preset operation content extraction template; the key information includes characteristic characters and operation content. Input the control task, feature characters, and operation content into the preset operation sequence generation model to generate the corresponding operation sequence; The intelligent security verification module selects and executes security check standards based on the collaborative mode, and then executes the operation sequence generated by the secondary business extraction module. The dynamic feedback monitoring module determines whether there is a risk during the execution of the control operation sequence by the intelligent safety verification module, based on preset early warning rules and thresholds. If a risk exists, an alarm is issued and the control strategy is automatically adjusted. After the remote control task is completed, the execution result is returned to the scheduling and command system.

13. A terminal, comprising a processor and a storage medium; characterized in that: The storage medium is used to store instructions; The processor is configured to operate according to the instructions to perform the steps of the remote closed-loop control method for adapting to multiple cooperative modes according to any one of claims 1-11.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the remote closed-loop control method for adapting to multiple cooperative modes as described in any one of claims 1-11.

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