Remote centralized control scheduling intelligent interaction method oriented to multistage regulation and control

Abstract

The invention discloses a remote centralized control scheduling intelligent interaction method oriented to multi-level regulation and control, which is characterized in that a system of the method is deployed in a safety II area, comprises an application, a database and an interface server, and is interconnected with each level of scheduling system through a B / S architecture by adopting strategies such as dual-computer hot standby and the like. The system comprises a plurality of modules: an information sharing and real-time communication module for promoting information circulation collaboration; the maintenance work management module is convenient for maintenance operation and display; the starting scheme execution module is responsible for acquiring a scheme from scheduling and executing and reporting the scheme; the safety anti-misoperation module carries out multi-aspect checking; the data analysis and decision support module performs operation decision; the two-factor authentication module ensures information security; the power-off and power-on application module replaces a traditional application process. Through cooperative work of the modules, many problems in the prior art are solved, the dispatching command efficiency and accuracy are improved, and electric power safety production is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of power system automation and informatization, and in particular to an intelligent interaction method for remote centralized control and dispatching oriented to multi-level regulation and control. Background Art

[0002] In the continuous evolution process of the current power industry, the development track of hydropower automation technology can be traced back to the early 1980s. A relatively complete technical system and diverse product series have been gradually established. This system covers many crucial aspects such as on-site automation, plant computer monitoring, basin remote centralized monitoring, basin water regime forecasting, basin water regulation automation, and dam safety monitoring, and largely meets the basic operation requirements for realizing "unattended (few people on duty)" in hydropower centralized control. Among them, the centralized control center, as the core hub in the entire hydropower operation system, shoulders the key missions of power generation operation command and reservoir operation dispatching, plays an irreplaceable important role in aspects such as remote centralized control and joint optimal operation of reservoirs, and effectively guarantees the stable operation of the hydropower system.

[0003] With the continuous progress of technology, a series of advanced technology applications have emerged in the current power field, represented by a certain super fusion screen system. This system adopts an integrated fusion technology and is equipped with self-developed software and hardware, realizing intuitive, efficient monitoring and comprehensive centralized management of business information. Through its powerful function design, it can achieve fast second-switching operations for multiple services and high-resolution screen display effects, and supports complex and practical functions such as one-key cross-system linkage. This not only greatly improves the convenience and efficiency of operation, but also makes the collaborative work between different business systems smoother. In terms of operation and maintenance, the system has an automatic fault location and analysis function, which can quickly and accurately identify the fault point and provide a detailed analysis report, thus greatly improving the operation and maintenance efficiency, reducing the downtime caused by faults, and guaranteeing the continuous and stable operation of the power system. At the architecture level, the fiber optic distributed architecture it adopts has significant advantages, effectively avoiding the interference of the electromagnetic environment on the signal transmission process, ensuring the stability and smoothness of information during transmission, and laying a solid foundation for the reliable operation of the system.

[0004] In terms of human-computer interaction design, a certain super-integrated screen system also demonstrates extremely high convenience. It comes with its own operating system, and users can achieve one-key control functions simply by operating a simple remote control. After startup, the system can automatically and quickly enter the power business navigation portal interface, providing users with a simple and clear operation entry, facilitating users to quickly retrieve and switch various power business scenarios and modes, and greatly improving work efficiency. In addition, the system also supports the physical isolation and integrated presentation and call functions of cross-network multi-services in the power field. In the face of major power business events, it can quickly respond and promptly activate the alarm linkage mechanism to ensure that relevant personnel can obtain information and take corresponding measures in a timely manner. At the same time, it also has powerful functions such as batch system pushing to the large screen, pushing multiple full-screen information to the office, and retrospective analysis of the whole process of events, providing rich means for the management and analysis of power business. Its built-in zero-code visual editing platform is even more of a highlight. It is pre-installed with a rich variety of templates covering various common scenarios. Even non-professional technical personnel can easily get started and quickly achieve the intuitive display and associated display of data, effectively reducing the usage threshold and improving the popularity and practicality of the system.

[0005] Taking a certain technology distributed system as an example, in the aspect of video signal processing, this system adopts advanced shallow compression technology, which can achieve lossless compression while ensuring the quality of video signals, ensuring the clarity and accuracy of video images. In large-screen display applications, it supports the splicing display of various different types of large screens and can achieve flexible windowing operations, meeting diverse display requirements. Through its powerful integration ability, it can connect all business systems to a unified platform to achieve intelligent operations such as automatic startup and shutdown of devices and automatic adjustment of parameters, greatly improving the automation level of device management. Moreover, it also has the ability to deeply integrate with other systems to achieve information linkage and intelligent analysis functions. During the operation of the system, it can automatically identify abnormal signals and quickly activate emergency response plans to effectively respond to various emergencies in a timely manner, ensuring the safe and stable operation of the system. At the same time, it can also visually display various types of information and present it to users in an intuitive and easy-to-understand way, facilitating users to quickly understand and analyze data and make accurate decisions.

[0006] Despite the remarkable progress made in current power technologies, there are still many deficiencies that urgently need to be addressed. Due to historical reasons, different business systems were built by different manufacturers at different times, which has led to a complex and diverse data source situation, different communication methods, and widely varying data interfaces. This chaotic situation has made it extremely difficult to share data information among business systems, and the phenomenon of data islands is severe, making it difficult to carry out effective intelligent analysis work. For example, when conducting comprehensive data analysis, due to the non-uniformity of data formats and interfaces, a large amount of time and effort are required for data cleaning and conversion, seriously affecting work efficiency and the accuracy of analysis results.

[0007] At the same time, limited by the current level of technological development, intelligent business requirements and application scenarios are still in the exploratory and fuzzy stage. Many systems focus on data aggregation management during the design and construction process, but insufficient attention is paid to in-depth data mining and analysis. A large amount of valuable data resources are only simply stored and managed, failing to fully realize their potential value. Intelligent analysis work has not been effectively carried out, and there is still a significant gap between the intelligent level and the development needs of the industry. This has restricted the digital transformation and intelligent upgrade process of the power industry to a certain extent.

[0008] The problems existing in traditional automation systems cannot be ignored either. There are significant differences in the internal subsystem architecture, and the communication standards are not unified, which makes it extremely difficult to share information among different subsystems and seriously insufficient in business collaboration capabilities. During actual operation, it is often impossible to achieve efficient interconnection and collaborative work among subsystems, resulting in low operating efficiency of the entire system and being unable to fully meet the objective requirements of the hydropower industry to further improve the comprehensive information assessment ability, deeply realize information integration and comprehensive application, and improve the operation management level and transform the management mode. For example, when dealing with complex power dispatching tasks, due to the collaborative obstacles among subsystems, it may lead to delays and inaccuracies in dispatching decisions, affecting the safe and stable operation of the power system.

[0009] The limitations of traditional command and dispatching systems are also becoming increasingly prominent. Their functions are relatively single and difficult to meet the increasingly diverse business needs. In terms of information update, the speed is extremely slow, unable to promptly reflect the real-time state changes of the power system and difficult to meet the requirements of rapid decision-making. In the context of the increasingly fierce competition in the current power market and the increasingly complex operation environment of the power system, such a lagging information update mechanism may lead to decision-making mistakes and cause huge economic losses to enterprises. In addition, there are significant potential risks in the data security of traditional command and dispatching systems, being vulnerable to external attacks and internal leaks. Once a data leakage event occurs, it may lead to the theft of key information of the power system, affecting the normal operation of the system and even posing a serious threat to power security.

[0010] Under the traditional dispatching mode, the centralized control operation command faces many severe challenges. With the rapid development of the power industry, the business volume of power generation operation shows a sharp increasing trend, which makes safety risks such as misoperation and misdispatching become increasingly prominent. In a busy working environment, operators may make operational mistakes due to factors such as fatigue and stress, and the traditional dispatching mode lacks effective prevention mechanisms and is difficult to avoid such problems. The dispatching business connection mainly relies on a single dispatching phone method, which has many drawbacks in practical applications. On the one hand, phone communication is easily interfered by the outside world, such as poor signal and line faults, affecting the accurate transmission of information; on the other hand, when dealing with emergencies, the dispatching phone may be interfered by other non-emergency work, resulting in important information not being conveyed in time and delaying the handling time. In addition, the traceability and verification ability of instructions under the traditional dispatching mode is poor, and the process of instruction issuance and execution lacks effective recording and supervision mechanisms, and cannot be used as reliable data for subsequent analysis and improvement work. This makes it difficult to quickly and accurately find the reasons and responsibilities when problems occur, which is not conducive to the continuous optimization and improvement of the system. At the same time, the characteristics of decentralized centralized control operation business also lead to low data sharing ability and informatization collaboration efficiency. Data between different departments cannot be circulated and shared efficiently, seriously affecting work efficiency and the scientific nature of decision-making.

[0011] During the process of the penetration of intelligent tunneling centralized control center technology, a series of technical problems and data security issues are also faced. With the continuous deepening of the application of intelligent technology in the centralized control center, some new technical problems gradually emerge. For example, when applying artificial intelligence algorithms to power equipment fault prediction, problems such as low data quality and poor algorithm adaptability may be encountered, resulting in inaccurate prediction results and unable to effectively guide actual operation and maintenance work. At the same time, data security issues are becoming increasingly severe. With a large amount of power data transmitted and stored in the intelligent system, the risks of data leakage and being attacked are constantly increasing. Once a data security incident occurs, it will not only affect the normal operation of the centralized control center, but may also pose a serious threat to the safety and stability of the entire power system. Therefore, during the process of actively promoting intelligent tunneling management, enterprises must attach great importance to employee training and ideological transformation work. By strengthening employee training, improving employees' understanding and application ability of new technologies so that they can proficiently master the operation methods of intelligent equipment and systems, and at the same time cultivating employees' data security awareness to ensure that they strictly abide by data security regulations in daily work and prevent data risks. Only in this way can the harmonious development of technology and human resources be achieved, give full play to the advantages of intelligent technology, and promote the sustainable development of the power industry. In addition, enterprises should also pay attention to environmental protection and social responsibilities. While improving technical level and economic benefits, actively take environmental protection measures to reduce the impact on the environment and contribute to the sustainable development of society.

[0012] In summary, although the power industry has achieved certain results in hydropower automation technology and the construction of centralized control centers, it still faces many technical challenges and problems. In future development, it is necessary to continuously increase investment in technology research and development, strengthen the formulation of industry standards and standardized management, promote technological innovation and application, improve the intelligent level and security of the system to meet the ever-developing needs of the power industry, ensure the safe and stable operation of the power system, and achieve the sustainable development goals of the power industry. At the same time, it is also necessary to pay attention to talent cultivation and team building, and build a high-quality talent team with professional technical capabilities and innovative spirit to provide strong talent support for the technological progress of the power industry. Summary of the Invention

[0013] The technical problem to be solved by the present invention is a remote centralized control and dispatching intelligent interaction method for multi-level regulation and control. This method constructs a new system to improve the efficiency and accuracy of dispatching and command, replaces the traditional and problem-prone method with an intelligent system, and accelerates information flow and coordination through the information sharing and real-time communication module. It realizes the standardization and normalization of the dispatching and centralized control management of hydropower and new energy power stations, and each functional module operates according to the process. It strengthens the safety and reliability of the system, ensures operation safety through two-factor authentication, and maintains continuous dispatching through dual-machine hot standby and data hot standby. Finally, it ensures safe power production, improves the dispatching efficiency of power stations, and meets industry requirements and policies. To solve the above technical problems, the technical solutions adopted by the present invention are as follows: A remote centralized control and dispatching intelligent interaction method for multi-level regulation and control, characterized in that the system constructed based on this method includes an application server, a database server, and an interface server deployed in Security Zone II; among them, the application server and the database server implement dual-machine hot standby, the application server adopts single-point integration and dual-active operation, the database adopts data hot standby, and the interface server is used for data interaction with the Southern Power Grid General Dispatching, Guizhou Medium Dispatching, and Local Dispatching. The system adopts a technical architecture including but not limited to B / S to achieve interconnection and interoperability with dispatching systems at all levels.

[0014] As a preferred technical solution of the present invention, the system includes the following modules: S1 information sharing and real-time communication module, S2 maintenance work management module, S3 start-up plan execution module, S4 safety anti-misoperation module, S5 data analysis and decision support module, S6 two-factor authentication module, S7 power outage and restoration application module.

[0015] Furthermore, the S1 information sharing and real-time communication module is used for real-time transmission between the centralized control and power station staff including but not limited to text, pictures, and files, and realizes the two-way text transmission communication function between units, making the communication between units efficient and the information widely visible, improving the communication efficiency and coordination effect.

[0016] As a preferred technical solution of the present invention, the S2 maintenance work management module is to obtain maintenance order data from the dispatching systems of China Southern Power Grid General Dispatching, Guizhou Medium Dispatching and Guizhou Local Dispatching, synchronize the real-time status, perform various maintenance application operations to the dispatching and display the maintenance business data of each link; it is convenient for the centralized control personnel to comprehensively grasp the maintenance situation and perform application operations in a timely manner, improving the efficiency and accuracy of maintenance work management and enabling the smooth progress of the maintenance process. Specifically: S2-1 Data Interface and Synchronization Mechanism: In terms of system architecture, this module relies on the overall framework of the intelligent dispatching and command interaction system of the centralized control center, establishes dedicated data interfaces with the dispatching systems of China Southern Power Grid General Dispatching, Guizhou Medium Dispatching and Guizhou Local Dispatching and is based on standardized communication protocols, enabling accurate and stable data transmission; during the data acquisition process, the module sends data requests to the dispatching systems at all levels according to the set time intervals and event trigger mechanisms, including but not limited to the generation or status update of new maintenance orders, obtains the latest maintenance order data in a timely manner and uses data synchronization technologies, including but not limited to the synchronization method based on database transaction processing and the synchronization method driven by message queues, to keep the maintenance data in the local system consistent with the data in the dispatching system in real time, providing an accurate data basis for subsequent management operations; S2-1 Application Operation and Data Display Function: In terms of software function implementation, a set of function-perfect operation interface and logic processing module is developed: when the centralized control personnel submit a maintenance application to the dispatching, relevant information is input through the operation interface, including but not limited to the maintenance type, estimated time, detailed content such as equipment name, etc. These information are encapsulated according to the predetermined format and rules and sent to the corresponding dispatching system through a secure network channel, including but not limited to the encrypted HTTPS connection and the secure transmission channel based on the power dedicated network; at the same time, the system records the log of each application operation for subsequent query and audit; for the display of the maintenance business data of each link, an intuitive visual interface design is adopted, including but not limited to forms such as tables, charts and Gantt charts, presenting clearly the data of each stage of the maintenance, including but not limited to pending start, start application, in progress, extension application, completion application, change application, completed; through data binding and dynamic update technologies, the displayed data is always synchronized with the actual maintenance progress and status, enabling the centralized control personnel to clearly understand the overall picture of the maintenance work and make decisions and adjustments in a timely manner; S2-3 System Integration and Collaborative Work: This module is closely integrated with other functional modules in the system to achieve collaborative work. Through this integration and collaborative mechanism in the entire maintenance process, information flows smoothly between different modules and personnel, further improving the efficiency and accuracy of maintenance work management and enabling the orderly progress of the maintenance process.

[0017] As a preferred technical solution of the present invention, the S3 startup plan execution module is to obtain startup plan data from the command systems of each level of dispatching network and synchronize the status, perform centralized control verification, execution, forward the plan instructions to the substation and report the execution status. Specifically: S3-1 Data acquisition and status synchronization: S3-1-1 Data interface establishment: Establish stable and reliable data interfaces between the system in the centralized control center and the command systems of each level of dispatching network. These interfaces are based on standardized network communication protocols including but not limited to the TCP / IP protocol stack to ensure the stability and compatibility of data transmission. Develop specialized adapters and interface programs for different dispatching systems to adapt to the data formats and communication protocols of different dispatching systems. Obtain startup plan data from the command systems of each level of dispatching network in ways including but not limited to timed polling and event-driven methods. S3-1-2 Status synchronization mechanism: Establish a local database to store the startup plan data and its status information obtained from the dispatching system. After receiving new startup plan data, update the local storage and use a version control mechanism to ensure the consistency and integrity of the data. Utilize database transaction processing technology to place data update operations in a transaction when synchronizing data. For errors occurring during the synchronization process, use the transaction rollback mechanism to ensure data consistency. At the same time, to keep the data real-time, use database triggers and timed tasks to check and update the data status at set time intervals to keep the data status in the local storage synchronized with the data status in the dispatching system. S3-2 Centralized control verification and plan execution: S3-2-1 Centralized control verification function: Develop a user interface to display the startup plan data to the centralized control personnel in an intuitive form, including but not limited to using a graphical interface to display information such as device information, operation steps, and time nodes in the startup plan, facilitating the centralized control personnel to view and understand. On the interface, the centralized control personnel perform verification operations on the startup plan, including but not limited to checking whether the device status in the plan conforms to the current actual situation and whether the operation steps are reasonable. After the centralized control personnel verify and pass, store the verification result in the local database and mark it as the verified status. Set permission management for the verification operation, and only centralized control personnel with corresponding permissions can perform the verification operation. The permission information is stored in the user role and permission management module and is verified when the user logs in and operates. S3-2-2 Plan execution process: After the startup plan is verified, the system will convert the execution instructions into control instructions that the device can recognize through a predefined operation command protocol according to the operation steps and device information in the plan. During the sending process of the execution instructions, use an acknowledgment response mechanism, that is, wait for the feedback from the device or substation after sending an instruction to confirm that the instruction has been successfully received and executed, ensuring that the instruction can be successfully sent and executed. Report on S3-3 Instruction Forwarding and Execution Status: S3-3-1 Instruction Forwarding Function: The centralized control center needs to forward the scheme instructions to the substation. According to the network address and device address of the substation, the converted control instructions are transmitted to the substation system through the network. For the substation system, the IP address and port number are used for identification to ensure that the instructions can be accurately delivered. During the instruction forwarding process, network routing technology is used to correctly route the instructions to the target substation in the network. At the same time, a message queue is used for instruction buffering and forwarding to prevent instruction loss and network congestion transmission problems. For different devices in the substation, the system adapts and converts according to the device type and the protocols supported by the devices, and converts the unified control instructions into the instruction format understood by the substation devices. S3-3-2 Execution Status Report: After receiving and executing the instructions, the substation feeds back the execution status information, including but not limited to successful execution, failure, and partial execution, to the centralized control center through the network. The centralized control center receives these feedback messages and stores them in the local database. The centralized control center encapsulates the execution status in a certain format, including but not limited to XML and JSON, and reports the execution status to the corresponding dispatching system through the interface with the dispatching system. The logging function is used to record the key information during the entire execution and reporting process, including but not limited to the instruction sending time, substation feedback time, and execution result, to facilitate subsequent fault troubleshooting and performance analysis.

[0018] As a preferred technical solution of the present invention, the S4 Safety Anti-Misoperation Module performs checks in multiple aspects including but not limited to ticket terms, device status, and topological structure during the entire operation process, including but not limited to the stages of ticket drafting, order issuing, and order receiving. Specifically: S4-1 Data Collection and Integration: Establish a close data connection with the device management database and operation status monitoring system of the power system to obtain various parameter information of the devices in real time, including but not limited to device model, rated voltage, current, current operation status, and topological connection relationship. These data are the basis for the checks, enabling the module to master the actual situation of the devices and the overall architecture of the system. Establish a dedicated power terminology library, including but not limited to standard terms commonly used in operation tickets, device name specifications, and operation action description contents. This terminology library is continuously updated and improved according to industry standards and the actual usage habits of the enterprise to provide an accurate reference for ticket term checks. S4-2 Ticket Term Check: During the ticket drafting stage, the operator inputs the operation content and uses natural language processing technology to parse the input text. Compare the input terms with the standard terms in the terminology library to check for problems including but not limited to spelling mistakes, improper word usage, or ambiguity. For some complex operation descriptions, semantic analysis technology is used to make the logic of the operation content clear and accurate. S4-3 Equipment Status Verification: In the order-issuing and order-receiving processes, based on the real-time data obtained from the equipment management system and operation monitoring system, judge the equipment status. Specifically: when receiving an order to operate a certain piece of equipment, first check whether the equipment is in an operable state. If the equipment is in a fault state, maintenance lock state, or is undergoing other relevant operations, the module will block the execution of the order and prompt the operator that the current equipment status does not allow operation, and at the same time provide detailed information about the equipment status so that the operator can take corresponding measures; for some operations that require specific equipment status conditions, the module will automatically obtain these parameters, calculate and compare them, and only allow the operation order to pass when the conditions are met; S4-4 Topology Structure Verification: Build a topology model of the power system, use algorithms to analyze and represent the connection structure of the power grid, and predict the impact of operations on the overall structure of the power grid according to the topology model when the operation involves equipment switching or connection; when performing topology verification, the protection configuration of the equipment and the relay protection action logic will also be considered to ensure that the operation will not cause misoperation or refusal of protection, affecting the safe and stable operation of the power system; As a preferred technical solution of the present invention, the S5 data analysis and decision support module is: fuzzy query operation tickets according to multiple condition combinations and automatically synchronize dispatching operation data to the superior dispatching agency.

[0019] As a preferred technical solution of the present invention, the S6 two-factor authentication module performs user identity recognition and authentication through multiple methods including but not limited to face and password and video and password methods during login and network order-issuing operations.

[0020] As a preferred technical solution of the present invention, in the S7 power outage and restoration application module, apply for the power outage and restoration management process to the dispatching network order-issuing system at all levels and generate permission operations and synchronize the status of each link, replacing the traditional telephone application process. Specifically: S7-1 Power Outage Application: Develop a user interface for power outage applications in the centralized control center system. The operator inputs information related to the power outage, including but not limited to the name of the power outage equipment, power outage scope, power outage time, and power outage reason; this information will be encapsulated into a standard data structure, encoded according to the pre-set communication protocol, and then sent to the dispatching network order-issuing system at all levels through the interface program; after the application is sent, set a timeout mechanism. If no response from the dispatching network order-issuing system is received within the set time, the application will be automatically resent and the operator will be prompted that the network is abnormal to ensure that the application information can be successfully delivered; for the verification and processing of the application, the dispatching network order-issuing system will conduct a review according to its internal rules. The centralized control center system receives the review result of the dispatching network order-issuing system. If the review is passed, a power outage permission operation will be generated and the local power outage application status will be updated; S7-2 Re-energization Application: The re-energization application process is the same as the power outage application. The operator inputs re-energization-related information including but not limited to re-energization equipment, re-energization time, and inspection of re-energization conditions, and sends this information to the dispatching network order-issuing system; during the re-energization application process, the system checks according to the power outage application information during the power outage to make the re-energization operation reasonable; after the dispatching network order-issuing system approves the re-energization application, a re-energization permission operation is generated, and the centralized control center system performs the re-energization operation and updates the status of the re-energization application. S7-3 Permission Operation Generation: After the power outage and re-energization applications pass the review of the dispatching network order-issuing system, permission operations are generated according to the review results; the permission operation is an electronic file and data record that records information including but not limited to operation commands, operation permissions, and operation time; different operation permissions are set for the permission operation so that only authorized personnel can execute the corresponding operations: the power outage operation requires authorization from the shift supervisor, and the re-energization operation requires confirmation by the technical supervisor before proceeding. S7-4 Status Synchronization: A local status database is established to store the status of each link of the power outage and re-energization applications, including but not limited to application status and operation status; the status update information is obtained from the dispatching network order-issuing system in a timed polling and event-driven manner. S7-5 User Experience Optimization: Provide an intuitive operation interface where the operator initiates power outage and re-energization applications on the interface, avoiding the problems of inaccurate and untimely information communication in traditional telephone applications; the progress and status of the application are displayed on the interface for the operator to easily grasp the application situation at any time; the records and historical information of the application are stored and managed in detail, and the operator can view the previous power outage and re-energization application records at any time to facilitate the summary and analysis of power outage and re-energization work. S7-6 Automation and Process Flow: Implement automated processing of the application process: After the power outage application is approved, a power outage operation ticket is automatically generated, and according to the information of the power outage equipment, the power outage operation steps and safety measures are automatically filled into the operation ticket to reduce human operation errors; after the re-energization operation is completed, the system automatically completes some subsequent work including but not limited to updating equipment status information and notifying relevant personnel.

[0021] As a preferred technical solution of the present invention, during the interaction of each business module of the system with the South China Grid Main Dispatching, Guizhou Main Dispatching, and Guizhou Local Dispatching, it includes but not limited to that the interface business scope covers functions such as equipment model distribution, network order issuing, maintenance interaction execution, and information collaboration, and is implemented through methods including but not limited to data files and message services.

[0022] The beneficial effects of adopting the above technical solutions are as follows: In the calculation of the transformer temperature field, it breaks through the limitations of traditional stray loss treatment, comprehensively considers various factors, and uses advanced model algorithms to achieve high-precision calculation, accurately determine the hot spot and temperature trend, and provide a key decision-making basis for operation and maintenance. Based on this, operation and maintenance personnel can take effective measures such as optimizing heat dissipation and adjusting the load in advance to prevent overheating faults, enhance power supply stability, and extend the life of the transformer. Regarding the detection of oil-paper insulation moisture and the correction of the equilibrium curve, it overcomes the existing sensor technology problems. When correcting the equilibrium curve, it fully considers the coupling of electric field and temperature, accurately evaluates the moisture distribution, and timely discovers abnormal accumulation sites. Power personnel can quickly implement drying maintenance and other means to prevent the decline of insulation performance, reduce the risks of short circuit and breakdown, and improve operation reliability. In the evaluation of insulation field strength and safety margin, with the help of advanced mathematical models and optimization algorithms, it accurately analyzes the changes in insulation characteristics under different working conditions, provides scientific decision-making support for operation and maintenance management. Based on this, operation and maintenance personnel can formulate reasonable maintenance plans, accurately replace problem components, ensure the stable operation of the transformer, greatly reduce operation and maintenance costs, and improve the economic benefits and operation efficiency of the power system. At the same time, the perfect data management and operation specifications of this technology ensure the security, integrity and traceability of data, improve the consistency and reliability of technology implementation, promote the improvement of industry technology, and lay a solid foundation for the safe and stable operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : System architecture diagram; Figure 2 : System topology diagram; Figure 3 : Functional architecture diagram. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Now, the principles of the present disclosure will be described with reference to several exemplary embodiments shown in the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the description of these embodiments is only for facilitating those skilled in the art to better understand and thereby implement the present disclosure, rather than limiting the scope of the present disclosure in any way. In the following description of the embodiments, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, the detailed descriptions of well-known systems, devices, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0025] It should be understood that when used in the specification of the present application and the appended claims, the term "comprising" indicates the presence of the described features, wholes, steps, operations, components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, components.

[0026] Example 1: Overall Overview I. Overview of the Intelligent Interaction Method for Remote Centralized Control and Dispatching Oriented to Multi-level Regulation The system constructed by this method aims to achieve intelligent interaction for remote centralized control and dispatching under multi-level regulation. The core lies in the construction of the system architecture and the coordinated operation of functional modules. This system is deployed in Security Zone II, covering application servers, database servers, and interface servers. Among them, the application servers and database servers adopt a dual-active hot standby configuration. The application servers use single-point integrated dual-active technology, and the database adopts a data hot standby strategy. The interface server is specifically responsible for data interaction with the Southern Power Grid Total Dispatching Center, Guizhou Medium Dispatching Center, and local dispatching centers. The overall system adopts a B / S technology architecture to ensure smooth interconnection and interoperability with dispatching systems at all levels.

[0027] II. Reference Appendix Figures 1-3 , System Module Composition and Functions 1. Information Sharing and Real-time Communication Module (S1) This module aims to create an efficient information exchange platform for centralized control and substation staff, enabling real-time transmission of information such as text, pictures, and files, and supporting two-way text communication between units. Through this information interaction method, the efficiency of communication between units and the transparency of information have been greatly enhanced, effectively improving the effect of collaborative work and communication efficiency.

[0028] 2. Maintenance Work Management Module (S2) Data Interface and Synchronization Mechanism (S2-1): Relying on the overall architecture of the intelligent dispatching and command interaction system of the centralized control center, this module establishes dedicated data interfaces with the Southern Power Grid Total Dispatching Center, Guizhou Medium Dispatching Center, and Guizhou Local Dispatching Center's network order-issuing systems, and ensures the accuracy and stability of data transmission according to standardized communication protocols. In the data acquisition link, data requests are sent to dispatching systems at all levels at a fixed time interval or event trigger conditions (such as the generation of a new maintenance order or status update), and then the latest maintenance order data is obtained. At the same time, data synchronization technologies (such as database transaction processing synchronization, message queue-driven synchronization, etc.) are used to ensure the real-time consistency of maintenance data in the local system and dispatching systems, laying a solid data foundation for subsequent management operations.

[0029] Application Operation and Data Display Function (S2-2): The system is equipped with a fully functional operation interface and a logic processing module. When the centralized control personnel submit a maintenance application to the dispatcher, rich information can be input on the operation interface, covering details such as the maintenance type, estimated time, equipment name, etc. This information will be encapsulated according to the predetermined format and rules and sent to the corresponding dispatching system through a secure network channel (such as an encrypted HTTPS connection, a dedicated power network security transmission channel). Moreover, the system will record the log of each application operation for subsequent query and audit. In terms of data display, an intuitive visual interface (such as tables, charts, Gantt charts, etc.) is used to present different stages of the maintenance, including data in stages such as to be started, start application, in progress, extension application, completion application, change application, completed, etc. Through data binding and dynamic update technologies, it is ensured that the displayed data is synchronized with the actual maintenance progress and status in real time, facilitating the centralized control personnel to comprehensively grasp the progress of the maintenance work for timely adjustment and decision-making.

[0030] System Integration and Collaborative Work (S2-3): This module is closely integrated with other functional modules within the system to form a collaborative work mechanism, ensuring the efficient flow of information between different modules and personnel, thereby optimizing the efficiency and accuracy of maintenance work management and promoting the orderly progress of the maintenance process.

[0031] 3. Startup Plan Execution Module (S3) Data Acquisition and Status Synchronization (S3-1): Data Interface Establishment (S3-1-1): A stable and reliable data interface is constructed between the centralized control center system and the order-issuing systems of each level of dispatching network. It is based on standardized network communication protocols such as the TCP / IP protocol stack to ensure the stability and compatibility of data transmission. For different dispatching systems, special adapters and interface programs are developed to adapt to their data formats and communication protocols, and the startup plan data is obtained from the order-issuing systems of each level of dispatching network in a timed polling or event-driven manner.

[0032] Status Synchronization Mechanism (S3-1-2): A local database is established to store the startup plan data and status information obtained from the dispatching system. After receiving new startup plan data, the local storage is updated and a version control mechanism is enabled to ensure the consistency and integrity of the data. The database transaction processing technology is adopted to incorporate the data update operation into the transaction processing. If an error occurs during the synchronization process, the data consistency can be guaranteed through the transaction rollback mechanism. At the same time, with the help of database triggers and timed tasks, the data status is checked and updated at regular intervals according to the set time interval to synchronize the data status between the local storage and the dispatching system data.

[0033] Centralized Control Verification and Plan Execution (S3-2): Centralized control verification function (S3-2-1): Develop a user interface to display startup plan information to centralized control personnel in an intuitive form such as graphically, including device information, operation steps, time nodes, etc. Centralized control personnel can verify the startup plan on this interface, check whether the device status matches the actual situation, whether the operation steps are reasonable, etc. The verification results are stored in the local database and marked as verified status, and the verification operation is subject to permission management. Only centralized control personnel with corresponding permissions can operate, and their permission information is stored in the user role and permission management module and verified during login and operation.

[0034] Scheme execution process (S3-2-2): After the startup plan is verified, the system converts the execution instructions into control instructions recognizable by the device according to the predefined operation command protocol. During the instruction sending process, an acknowledgment response mechanism is adopted, that is, wait for feedback from the device or substation after sending the instruction to ensure the successful sending and execution of the instruction.

[0035] Instruction forwarding and execution status reporting (S3-3): Instruction forwarding function (S3-3-1): When the centralized control center forwards the scheme instructions to the substation, according to the substation network address and device address, the converted control instructions are transmitted to the substation system through the network. Use the IP address and port number to identify the substation system to ensure the accurate delivery of the instructions. In the instruction forwarding, network routing technology is used to ensure the correct routing of the instructions, and a message queue is used for instruction buffering and forwarding to prevent instruction loss and network congestion. For different devices in the substation, the unified control instructions are adapted and converted according to the device type and supported protocol.

[0036] Execution status reporting (S3-3-2): After the substation executes the instructions, it feeds back the execution status (such as successful execution, failure, partial execution, etc.) to the centralized control center. The centralized control center stores it in the local database and encapsulates the execution status in formats such as XML or JSON, and reports it to the corresponding dispatching system through the dispatching system interface. At the same time, the log recording function is used to record key information such as the instruction sending time, substation feedback time, execution result, etc., which provides convenience for fault troubleshooting and performance analysis.

[0037] 4. Safety anti-misoperation module (S4) Data collection and integration (S4-1): Establish a close data connection with the device management database and operation status monitoring system of the power system, and collect device parameter information in real time, including device model, rated voltage, current, current operation status, topological connection relationship, etc. These data are the basis for subsequent verification operations and help the module master device and system architecture information. At the same time, build and continuously update and improve the power terminology library, covering common standard terms of operation tickets, device name specifications, operation action descriptions, etc., to provide an accurate reference for ticket term verification.

[0038] Verification of ticket terms (S4-2): In the ticket preparation stage, natural language processing technology is used to parse the operation content input by the operator, compare it with the standard terms in the term library, and check for problems such as spelling mistakes, improper word usage, or ambiguity. For complex operation descriptions, semantic analysis technology is used to ensure that the operation content is logically clear and accurate.

[0039] Verification of equipment status (S4-3): In the order-giving and order-receiving links, the equipment status is judged based on the real-time data of the equipment management system and the operation monitoring system. When an equipment operation command is received, first check whether the equipment is operable. If the equipment is in a fault, maintenance lockout, or is performing other operations, the command execution will be blocked and the operator will be prompted with the equipment status, while detailed information will be provided to help them take measures. For operations with specific equipment status requirements, relevant parameters will be automatically obtained and calculated for comparison, and the operation command will only be allowed to pass when the conditions are met.

[0040] Verification of topological structure (S4-4): Build a topological model of the power system, and use algorithms to analyze and represent the grid connection structure. When it comes to equipment opening or access operations, based on the topological model, predict the impact on the overall grid structure, and at the same time consider the equipment protection configuration and the relay protection action logic to prevent misoperation and refusal of protection caused by operations, and ensure the safe and stable operation of the power system.

[0041] 5. Data Analysis and Decision Support Module (S5) This module can perform fuzzy queries on operation tickets according to various condition combinations, and automatically synchronize the dispatching operation data to the superior dispatching agency.

[0042] 6. Two-Factor Authentication Module (S6) In the login and network order-giving operations, user identity authentication is achieved through various methods, such as multiple combination methods of face and password, video and password, etc.

[0043] 7. Power Outage and Restoration Application Module (S7) Power outage application (S7-1): In the power outage application user interface of the centralized control center system, the operator inputs power outage-related information, including the name of the power outage equipment, the power outage scope, the power outage time, the power outage reason, etc. This information will be encapsulated into a standard data structure, encoded according to the predetermined communication protocol, and sent to the network order-giving systems of each level of dispatching through the interface program. After the application is sent, a timeout mechanism is set. If no response is received, it will be automatically resent and the operator will be prompted with a network exception to ensure that the application information is delivered. The network order-giving system of the dispatching audits the application according to internal rules. After the audit is passed, the centralized control center generates a power outage permission operation and updates the local power outage application status.

[0044] Resume power supply application (S7-2): The resume power supply application process is similar to the power outage application. The operator inputs relevant resume power supply information (such as resume power supply equipment, resume power supply time, inspection of resume power supply conditions, etc.) and sends it to the dispatching network order-issuing system. During the resume power supply application process, the system checks according to the power outage application information to ensure the rationality of the resume power supply operation. After the dispatching network order-issuing system approves the application, a resume power supply permission operation is generated, and the centralized control center conducts the resume power supply operation and updates the status of the resume power supply application.

[0045] Permission operation generation (S7-3): After the power outage and resume power supply applications are approved by the dispatching network order-issuing system, a permission operation is generated, which is an electronic document or data record containing information such as operation commands, operation permissions, and operation times. Different operation permissions are set for permission operations. The power outage operation requires authorization from the duty supervisor, and the resume power supply operation requires confirmation from the technical supervisor.

[0046] Status synchronization (S7-4): A local status database is established to store the status of each link in the power outage and resume power supply applications (such as application status, operation status, etc.). The status update information is obtained from the dispatching network order-issuing system in a timed polling and event-driven manner.

[0047] User experience optimization (S7-5): An intuitive operation interface is provided to facilitate the operator to initiate power outage and resume power supply applications, avoiding information communication problems in traditional telephone applications. The interface displays the application progress and status, making it convenient for the operator to keep track of the situation. At the same time, the application records and historical information are stored and managed in detail, facilitating the operator to view and summarize the power outage and resume power supply work.

[0048] Automation and process flow (S7-6): The application process is automated. After the power outage application is approved, a power outage operation ticket is automatically generated, and the operation steps and safety measures are automatically filled in according to the power outage equipment information, reducing human errors. After the resume power supply operation is completed, the system automatically executes subsequent tasks, such as updating the equipment status information and notifying relevant personnel.

[0049] III. Business interactions between the system and dispatchers at all levels During the interaction of each business module of the system with the South China Grid Main Dispatching, Guizhou Medium Dispatching, and Guizhou Local Dispatching, the interface business scope is extensive, covering functions such as equipment model distribution, network order issuing, maintenance interaction execution, and information collaboration. Information interaction is achieved through various methods such as data files and message services.

[0050] Embodiment 2: Power outage and resume power supply in urban power supply areas In a certain urban power supply area, due to the construction needs of the power access project for a large commercial complex with a building area of 100,000 square meters, power outages need to be carried out in some surrounding areas. The scope of this power outage involves 5 residential communities, a total of 3,000 households, and the commercial electricity consumption of 3 main streets. These commercial users cover various important livelihood service places such as supermarkets, restaurants, and banks. The expected power outage time is 8 hours, and the power outage time is carefully arranged from 0:00 to 8:00 on Sunday morning to minimize the interference to residents' lives and commercial activities. At the same time, after the grid in this area is upgraded and transformed, the power restoration operation needs to be carried out quickly and safely to restore the normal power supply order.

[0051] In the centralized control center system, the operator opens the user interface for power outage applications and carefully enters the detailed information related to the power outage, including the name of the power outage equipment "No. 1 main transformer and related lines of the XX area substation (where the capacity of the No. 1 main transformer is 50 MVA, the total length of the related lines reaches 20 km, and it involves 10 branch lines)", the scope of the power outage "Residential communities No. 1-5 on XX Street (specific house number range from XX to XX), XX Road (commercial user numbers on both sides of the road range from 1 to 50), XX Avenue (covering the commercial electricity consumption within a radius of 1 km around the commercial complex)", the power outage time "00:00-08:00 on XX year XX month XX day", the reason for the power outage "Construction of the power access project for the new commercial complex, and the construction content includes laying 5 km of new cables, installing 10 distribution cabinets, and commissioning the power monitoring system", etc. These information are encapsulated into a data structure that strictly conforms to the IEC60870-5 standard, encoded according to the pre-set communication protocol, and then sent to the dispatching network order-issuing systems at all levels through the interface program. After the application is sent, a 30-second timeout mechanism is set. If no response from the dispatching network order-issuing system is received within the specified time, the system will automatically re-send the application and accurately prompt the operator with the type and possible reasons of the network abnormality to ensure that the application information can be successfully delivered.

[0052] The dispatching network order-issuing system conducts a comprehensive review of power outage applications in accordance with its rigorous internal rules. It not only checks whether the power load transfer plan for the power outage area is scientific and reasonable (such as ensuring through power flow calculation that surrounding substations have sufficient capacity to accept the transferred load and the line overload risk is less than 5%), whether the standby power supply is ready (including the start-up test records of standby generators and whether the fuel reserve meets the requirement of 12-hour continuous operation), but also evaluates whether the construction safety measures are in place (such as whether obvious warning signs are set at the construction site and whether the construction personnel have the corresponding qualifications). After receiving the review results from the dispatching network order-issuing system, the centralized control center system automatically generates a power outage permission operation upon passing the review. At the same time, it updates the local power outage application status to "approved" and immediately sends detailed notifications to relevant departments (such as power operation and maintenance departments, residential community property management, sub-district offices, commercial user management agencies, etc.) and personnel (through various methods such as text messages, system pop-ups, emails, etc.), informing that the power outage plan has been determined. The notification content includes key information such as the power outage time, scope, reason, and expected power restoration time.

[0053] The power restoration application process is similar to the power outage application. After completing the power connection project and grid upgrade and transformation, the operator enters power restoration-related information into the system, such as the power restoration equipment "No. 1 main transformer and related lines in XX area substation (detailed description of the key parameter changes and test results of each equipment after transformation)", the power restoration time "XX year XX month XX day 08:00", the inspection situation of power restoration conditions "The power connection project has passed the acceptance (provide the acceptance report number and the results of the main acceptance indicators), and all grid parameters are normal (list the measured values of parameters such as voltage, frequency, and phase and the comparison with the standard values)", etc., and sends this information to the dispatching network order-issuing system. During the power restoration application process, the system will conduct strict checks based on the power outage application information during the power outage to ensure the rationality and safety of the power restoration operation. For example, check whether the construction site has been cleared, whether all temporary grounding devices have been removed, and whether the insulation resistance of the equipment has returned to the normal range. After the dispatching network order-issuing system approves the power restoration application, it generates a power restoration permission operation, and the centralized control center system performs the power restoration operation and updates the status of the power restoration application to "completed". At the same time, the system will automatically notify relevant departments and users of the successful power restoration and the resumption of normal power supply through various channels (such as the power text message platform, intelligent meter push, community bulletin board information update, etc.), ensuring the rapid resumption of normal life and commercial activities for residents.

[0054] The system builds a local status database to store the status of each link of the power outage and restoration application, including application status (submitted, under review, approved, rejected, completed, etc.) and operation status (not executed, under execution, completed, etc.). The system obtains status update information from the dispatch network command system by combining scheduled polling (once every 10 minutes) and event-driven (such as changes in application status, new instructions issued by the dispatch system, etc.). During the scheduled polling process, the system will send specific query instructions, parse the returned data according to the predefined protocol, and compare and update it with the local data; the event-driven mechanism captures status change events in a timely manner and triggers local data update operations by monitoring the message queue or network port of the dispatch system, ensuring that the status information in the centralized control center system is always highly consistent with the dispatch system.

[0055] The system provides an extremely intuitive and easy-to-use operation interface, on which operators can clearly see the progress and status of the power outage and restoration application, including the overall progress displayed in the form of a progress bar, the status of each link marked with different colors, the key time nodes and the estimated completion time presented in the form of a timeline, etc., so that they can accurately grasp the application status at any time. The system stores and manages the application records and historical information in detail and in a classified manner. Operators can view previous power outage and restoration application records at any time according to multiple dimensions such as time, region, and equipment, which is convenient for comprehensive and in-depth summary and analysis of power outage and restoration work. For example, key indicators such as the number of power outages, average power outage time, power restoration success rate, and the proportion of power outages caused by different reasons are counted, and visual reports are generated to provide a strong reference basis for subsequent power dispatching work and continuously optimize power supply management strategies.

[0056] Example 3: New energy power generation base starts In a certain new energy power generation base, it is large in scale, including 200 wind turbines with a total installed capacity of 100 megawatts and a 50 megawatt photovoltaic power station. After completing the equipment installation and commissioning, it is necessary to connect to the power grid and start formal operation according to the predetermined startup plan. The startup plan is complex in design and involves the precise setting of many equipment parameters, such as the cut-in wind speed of each wind turbine is set to 3 meters / second, the rated wind speed is 12 meters / second, the cut-out wind speed is 25 meters / second, and the maximum power tracking point voltage range of the inverter of the photovoltaic power station is 450-800 volts, etc.; the unit grid connection sequence has also been carefully planned, according to the order of starting wind turbines No. 1-50 first, and then gradually connecting to the photovoltaic power station after they are running stably; at the same time, it is necessary to carry out close and coordinated control with the power grid to ensure that the power generation power is smoothly connected to the power grid to avoid impact on the power grid. This process needs to be completed in close coordination with the Southern Grid General Dispatching and Guizhou Central Dispatching to ensure the safety and efficiency of the entire startup process.

[0057] The startup plan execution module of the system successfully establishes a connection with the order-issuing systems of each level of dispatching network through a highly stable and reliable data interface developed based on the TCP / IP protocol stack. Special adapters and efficient interface programs are developed respectively for the different data formats and communication protocol characteristics of the CSG General Dispatching Center and Guizhou Medium Dispatching Center. The startup plan data is obtained from the order-issuing systems of each level of dispatching network by combining timed polling (once every 30 minutes) and event-driven (when a new startup plan is released by the dispatching system, the plan data is updated, or a device status change notification is received). During the data acquisition process, database transaction processing technology is used to ensure data consistency and integrity, and a version control mechanism is used to manage the update history of the data, facilitating traceability and comparison. After receiving the new startup plan data, the local storage is immediately updated, and database triggers and scheduled tasks are used to check and update the data status at a set time interval of 15 minutes, so that the data status in the local storage is highly synchronized with the data status in the dispatching system.

[0058] A graphical interface with excellent user experience is developed to visually display rich and detailed information in the startup plan to the centralized control personnel, such as device information (e.g., detailed models, rated powers, access point locations accurate to longitude and latitude coordinates, blade lengths and materials of each wind turbine generator, detailed models of inverters in the photovoltaic power station, conversion efficiency curves, battery bank capacities, and charge and discharge characteristics), operation steps (including self-checking processes before unit startup, detailed inspection items and standards for grid connection conditions, specific algorithms and step sizes for power regulation, etc.), time nodes (predicted times accurate to minutes and actual completion times of each key operation). The centralized control personnel carefully verify the startup plan on the interface, for example, checking whether the wind speed sensor data of each wind turbine generator is accurate, whether the temperature sensor is working properly, whether the light intensity of the photovoltaic power station reaches the startup threshold and is evenly distributed, etc. After verification, the verification results are stored in the local database and marked as verified. For the verification operation, the system sets up a strict permission management system. Only centralized control personnel with corresponding permissions can perform the verification operation. The permission information is stored in the user role and permission management module and is strictly verified when the user logs in and operates, including multi-factor authentication methods such as username and password verification, dynamic verification code verification, fingerprint recognition, or face recognition.

[0059] After the startup plan is verified, the system converts the execution instructions into control instructions recognizable by the device according to the operation steps and device information in the plan through a pre-defined operation command protocol that complies with the power industry standards (such as the wind turbine control command of IEC61400-25 standard and the photovoltaic power station control command of IEC60870-5 standard). During the sending process of the execution instructions, an acknowledgement response mechanism is used, that is, wait for the feedback from the device or substation after sending an instruction to confirm the successful reception and execution of the instruction. If no feedback is received within 10 seconds, the system will automatically re-send the instruction, with a maximum of 3 retries to ensure that the instruction can be successfully sent and executed. For example, after sending a startup instruction to the first wind turbine, the system starts a timer to wait for the signal indicating successful startup from the unit control system. If no signal is received, the system automatically re-sends the startup instruction after the timer times out and records the number of retries. If no successful feedback is received after reaching the maximum number of retries, the system will immediately issue an alarm to notify the centralized control personnel and relevant technical personnel for troubleshooting and handling.

[0060] When it is necessary to forward the plan instructions to the substation, the system transmits the converted control instructions to the substation system through the network according to the network address and device address of the substation. For the substation system, the IP address and port number are used for accurate identification to ensure that the instructions can be accurately delivered. During the instruction forwarding process, advanced network routing technology is fully utilized. According to the network topology and real-time traffic conditions, the optimal path is selected to correctly route the instructions to the target substation in the network. At the same time, a high-performance message queue (such as ActiveMQ) is used for instruction buffering and forwarding to prevent instruction loss and network congestion problems during transmission. For different devices in the substation, the system adapts and converts according to the device type and the protocol supported by the device, converting the unified control instructions into the instruction format understood by the substation devices. For example, for wind turbines produced by different manufacturers, it may be necessary to perform secondary conversion of the control instructions according to their specific communication protocols and data formats to ensure that the units can correctly execute the instructions.

[0061] After receiving and executing the instruction, the substation will feedback the execution status information (such as successful execution, failure, partial execution, and specific fault information or abnormal situation description, including fault code, fault occurrence location, possible cause analysis, etc.) to the centralized control center through the network. The centralized control center receives this feedback information and stores it in the local database. The centralized control center encapsulates the execution status in JSON format and reports the execution status to the corresponding dispatching system through the interface with the dispatching system. The logging function is used to record the key information during the entire execution and reporting process, including the instruction sending time accurate to milliseconds, the substation feedback time, the execution result, the change curve of equipment operation parameters, etc., which is convenient for subsequent fault troubleshooting and performance analysis. For example, if a wind turbine generator has an abnormal fault in the blade angle adjustment during the startup process, the substation will feedback the fault information (fault code is 001, fault occurrence location is the blade adjustment motor, possible cause is the communication fault of the motor controller) to the centralized control center. The centralized control center records the log and reports the information to the dispatching system. The dispatching system can adjust the startup plan in a timely manner based on these lessons learned or arrange professional maintenance personnel to go to the site with corresponding tools and spare parts for processing to ensure the smooth progress of the startup process and guarantee that the new energy power generation base is connected to the power grid on time, stably, and realizes efficient power generation.

[0062] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An intelligent interactive method for remote centralized control and dispatching for multi-level regulation, characterized in that: The system constructed based on this method includes an application server, a database server and an interface server deployed in the safety zone II; the application server and the database server implement dual-machine hot standby, the application server adopts single-point integrated dual-active, the database adopts data hot standby, and the interface server is used for data interaction with the Southern Power Grid General Dispatching, Guizhou Central Dispatching and Local Dispatching. The system adopts including but not limited to B / S technical architecture to achieve interconnection with dispatching systems at all levels.

2. According to claim 1, a remote centralized control and dispatching intelligent interactive method for multi-level regulation is characterized in that: The system includes the following modules: S1 information sharing and real-time communication module, S2 maintenance work management module, S3 startup plan execution module, S4 safety error prevention module, S5 data analysis and decision support module, S6 two-factor authentication module, S7 power outage and restoration application module.

3. According to claim 2, a remote centralized control and dispatching intelligent interactive method for multi-level regulation is characterized in that: The S1 information sharing and real-time communication module is used for real-time transmission of information including but not limited to text, pictures, and files between centralized control and plant and station staff, and realizes two-way text transmission and communication functions between units, so that communication between units maintains high efficiency and wide visibility of information, thereby improving communication efficiency and collaborative effects.

4. According to claim 2, a remote centralized control and dispatching intelligent interactive method for multi-level regulation is characterized in that: The S2 maintenance work management module is to obtain maintenance order data from the network dispatching system of the Southern Power Grid, Guizhou Central Dispatching and Guizhou Local Dispatching, and synchronize the real-time status, submit various maintenance application operations to the dispatching system, and display the maintenance business data of each link; it is convenient for the centralized control personnel to fully grasp the maintenance situation and apply for operations in a timely manner, improve the efficiency and accuracy of maintenance work management, and make the maintenance process smooth, specifically: S2-1 Data interface and synchronization mechanism: In terms of system architecture, this module relies on the overall framework of the intelligent dispatching and command interaction system of the centralized control center, establishes a dedicated data interface with the network command system of the Southern Power Grid, Guizhou Central Dispatching and Guizhou Geological Dispatching, and based on standardized communication protocols, enables data to be transmitted accurately and stably; in the process of data acquisition, the module sends data requests to dispatching systems at all levels according to the set time intervals and event trigger mechanisms, including but not limited to the generation of new maintenance orders or status updates, and promptly obtains the latest maintenance order data and uses data synchronization technology, including but not limited to synchronization methods based on database transaction processing and message queue-driven synchronization methods, so that the maintenance data in the local system and the data in the dispatching system are kept consistent in real time, providing an accurate data basis for subsequent management operations; S2-1 Application operation and data display function: In terms of software function implementation, a set of fully functional operation interfaces and logic processing modules have been developed: when the centralized control personnel submit maintenance applications to the dispatcher, they input relevant information including but not limited to maintenance type, estimated time, equipment name and other detailed information through the operation interface. This information is packaged according to the predetermined format and rules, and sent to the corresponding dispatching system through a secure network channel including but not limited to an encrypted HTTPS connection and a secure transmission channel based on a power-specific network; at the same time, the system records the log of each application operation for subsequent query and audit; For the display of maintenance business data in each link, an intuitive visual interface design is adopted, including but not limited to the use of tables, charts and Gantt charts, to clearly present the data of each stage of maintenance, including but not limited to waiting to start, start application, started, extension application, completion application, change application, and completed; through data binding and dynamic update technology, the displayed data is always synchronized with the actual maintenance progress and status, so that the centralized control personnel can understand the overall picture of the maintenance work at a glance and make decisions and adjustments in time; S2-3 System integration and collaborative work: This module is tightly integrated with other functional modules within the system to achieve collaborative work. Through this integration and collaborative mechanism throughout the entire maintenance process, information can flow smoothly between different modules and personnel, further improving the efficiency and accuracy of maintenance work management and enabling the orderly advancement of the maintenance process.

5. The intelligent interactive method for remote centralized control and dispatching for multi-level regulation according to claim 2 is characterized in that: The S3 startup plan execution module is to obtain startup plan data from the dispatching network command systems at all levels and synchronize the status, conduct centralized control verification, execution, forward the plan instructions to the plant station and report the execution status, specifically: S3-1 Data acquisition and status synchronization: S3-1-1 Data interface establishment: Establish stable and reliable data interfaces between the system of the centralized control center and the dispatching network command systems at all levels. These interfaces are based on standardized network communication protocols including but not limited to the TCP / IP protocol stack to ensure data transmission stability and compatibility; develop special adapters and interface programs for different dispatching systems to adapt to the data formats and communication protocols of different dispatching systems; use methods including but not limited to timed polling and event-driven methods to obtain startup plan data from dispatching network command systems at all levels; S3-1-2 Status synchronization mechanism: Establish a local database to store the startup plan data and its status information obtained from the scheduling system; after receiving the new startup plan data, update the local storage and use the version control mechanism to ensure data consistency and integrity; use database transaction processing technology to put data update operations in transactions when synchronizing data, and use the transaction rollback mechanism to ensure data consistency for errors that occur during the synchronization process; at the same time, in order to keep the data real-time, use database triggers and scheduled tasks to check and update the data status according to the set time interval to keep the data status of the local storage synchronized with the data status of the scheduling system; S3-2 Centralized control verification and plan implementation: S3-2-1 Centralized control verification function: Develop a user interface to display the startup plan data to the centralized control personnel in an intuitive form, including but not limited to using a graphical interface to display the startup plan, including but not limited to equipment information, operation steps, and time nodes, so that the centralized control personnel can view and understand it easily; On the interface, the central control personnel shall verify the startup plan, including but not limited to checking whether the equipment status in the plan conforms to the current actual situation and whether the operation steps are reasonable; after verification, the central control personnel shall store the verification results in the local database and mark them as verified; permission management shall be set for the verification operation, and only the central control personnel with corresponding permissions can perform the verification operation. The permission information shall be stored in the user role and permission management module and verified when the user logs in and operates; S3-2-2 Scheme execution process: After the start-up scheme is verified, the system will convert the execution instructions into control instructions that can be recognized by the device according to the operation steps and equipment information in the scheme through the pre-defined operation command protocol; in the process of sending the execution instruction, the confirmation response mechanism is used, that is, after sending a command, wait for the feedback from the equipment or plant station to confirm that the instruction is successfully received and executed, so as to ensure that the instruction can be successfully sent and executed; S3-3 Instruction forwarding and execution report: S3-3-1 Instruction forwarding function: The centralized control center needs to forward the program instructions to the plant station. According to the network address and equipment address of the plant station, the converted control instructions are transmitted to the plant station system through the network; For plant station systems, IP addresses and port numbers are used to identify them so that instructions can be delivered accurately; In the process of command forwarding, network routing technology is used to correctly route the command to the target plant in the network; at the same time, message queues are used to buffer and forward commands to prevent transmission problems such as command loss and network congestion; for different equipment in the plant, the system adapts and converts according to the equipment type and the protocol supported by the equipment, converting unified control instructions into the instruction format understood by the plant equipment; S3-3-2 Execution status report: After receiving and executing the instructions, the plant station will feedback the execution status information including but not limited to execution success, failure, and partial execution to the centralized control center through the network. The centralized control center receives this feedback information and stores it in the local database; the centralized control center will encapsulate the execution status in a certain format including but not limited to XML and JSON, and report the execution status to the corresponding dispatching system through the interface with the dispatching system; the logging function will be used to record the key information of the entire execution and reporting process, including but not limited to the instruction sending time, plant station feedback time, and execution results, to facilitate subsequent troubleshooting and performance analysis.

6. The intelligent interactive method for remote centralized control and dispatching for multi-level regulation according to claim 2 is characterized in that: The S4 safety error prevention module is to check various aspects including but not limited to ticket terminology, equipment status, and topology structure in the whole operation process, including but not limited to the stages of drafting tickets, issuing orders, and receiving orders, specifically: S4-1 Data acquisition and integration: Establish close data connection with the equipment management database and operation status monitoring system of the power system, and obtain various parameter information of the equipment in real time, including but not limited to equipment model, rated voltage, current, current operation status, and topological connection relationship; these data are the basis for verification, so that the module can grasp the actual situation of the equipment and the overall architecture of the system; establish a special power terminology library including but not limited to the standard terms commonly used in operation tickets, equipment name specifications, and operation action descriptions; the terminology library is continuously updated and improved according to industry standards and actual usage habits of enterprises, providing accurate reference for ticket term verification; S4-2 Ticket terminology verification: During the ticket drafting stage, the operator inputs the operation content and uses natural language processing technology to parse the input text; compare the input terms with the standard terms in the terminology database to check whether there are problems including but not limited to spelling errors, non-standard wording or ambiguity; for some complex operation descriptions, semantic analysis technology is used to make the logic of the operation content clear and accurate; S4-3 Equipment status check: In the order-giving and order-receiving stages, the equipment status is judged based on the real-time data obtained from the equipment management system and the operation monitoring system. Specifically, upon receiving an order to operate a certain device, the module first checks whether the device is in an operable state. If the device is in a fault state, maintenance locked state, or other related operations are being performed, the module will block the execution of the command and prompt the operator that the current state of the device does not allow the operation, while providing detailed information on the equipment status so that the operator can take corresponding measures. For some operations that require specific equipment status conditions, the module will automatically obtain these parameters and perform calculations and comparisons. The operation command will only be allowed to pass if the conditions are met. S4-4 Topology structure verification: Construct a topological model of the power system, use algorithms to analyze and represent the connection structure of the power grid, and predict the impact of the operation on the overall structure of the power grid based on the topological model when the operation involves disconnecting or connecting equipment. When performing topology verification, the protection configuration of the equipment and the relay protection action logic are also considered to ensure that the operation does not cause false operation or refusal of protection, affecting the safe and stable operation of the power system.

7. The intelligent interactive method for remote centralized control and dispatching for multi-level regulation according to claim 2 is characterized in that: The S5 data analysis and decision support module is: fuzzy query operation tickets according to multiple condition combinations and automatically synchronize dispatch operation data to the superior dispatch agency.

8. The intelligent interactive method for remote centralized control and dispatching for multi-level regulation according to claim 2 is characterized in that: The S6 two-factor authentication model performs user identity authentication through multiple methods including but not limited to face and password and video and password methods during login and network command operations.

9. The intelligent interactive method for remote centralized control and dispatching for multi-level regulation according to claim 2, characterized in that: In the S7 power outage and restoration application module, the power outage and restoration management process is applied to the dispatching network command system at all levels and the permission operation is generated and the status of each link is synchronized, replacing the traditional telephone application process, specifically: S7-1 Power outage application: Develop a user interface for power outage application in the centralized control center system. Operators input information related to power outage, including but not limited to the name of the power outage equipment, the scope of the power outage, the time of the power outage, and the reason for the power outage. This information will be encapsulated into a standard data structure, encoded according to the preset communication protocol, and then sent to the dispatching network command system at all levels through the interface program. After the application is sent, a timeout mechanism is set. If no response is received from the dispatching network command system within the set time, the application will be automatically resent and the operator will be prompted of network abnormalities to ensure that the application information can be successfully delivered. For the verification and processing of the application, the dispatching network command system will review it according to its internal rules. The centralized control center system receives the review results of the dispatching network command system. If the review is passed, a power outage permission operation will be generated and the local power outage application status will be updated at the same time. S7-2 Power restoration application: The power restoration application process is the same as the power outage application process. The operator inputs the power restoration related information including but not limited to the power restoration equipment, power restoration time, and power restoration condition inspection status, and sends this information to the dispatch network command system. During the power restoration application process, the system checks the power outage application information at the time of the power outage to make the power restoration operation reasonable. After the dispatch network command system reviews and approves the power restoration application, it generates a power restoration permission operation, and the centralized control center system performs the power restoration operation and updates the status of the power restoration application. S7-3 Permitted operation generation: After the power outage and power restoration application is reviewed by the dispatch network command system, a permitted operation is generated based on the review results; a permitted operation is an electronic file and data record that records information including but not limited to operation commands, operation permissions, and operation time; different operation permissions are set for permitted operations so that only authorized personnel can perform the corresponding operations: power outage operations require authorization from the person on duty, and power restoration operations require confirmation from the technical person in charge; S7-4 status synchronization: Establish a local status database to store the status of each link of power outage and restoration application, including but not limited to application status and operation status; use timed polling and event-driven methods to obtain status update information from the dispatching network command system; S7-5 user experience optimization: It provides an intuitive operation interface, where operators can initiate power outage and restoration applications, avoiding the inaccurate and untimely information communication problems that occur in traditional telephone applications. The application progress and status are displayed on the interface, allowing operators to keep track of the application status at any time. The application records and historical information are stored and managed in detail, allowing operators to view previous power outage and restoration application records at any time to facilitate summary and analysis of power outage and restoration work. S7-6 Automation and Process: Realize the automation of the application process: After the power outage application is approved, a power outage operation ticket is automatically generated. According to the information of the power outage equipment, the power outage operation steps and safety measures are automatically filled in the operation ticket to reduce manual operation errors; after the power restoration operation is completed, the system automatically completes some follow-up work including but not limited to updating equipment status information and notifying relevant personnel.

10. The intelligent interactive method for remote centralized control and dispatching for multi-level regulation according to claim 1, characterized in that: The business modules of the system, during the interaction with the Southern Grid General Dispatching, Guizhou Central Dispatching, and Guizhou Geological Dispatching, include but are not limited to interface business scope covering equipment model issuance, network commands, maintenance interaction execution, information collaboration functions and are implemented through methods including but not limited to data files and message services.

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