CN103106555B - Maintaining-managing system based on the integration of online off-line and method - Google Patents

Abstract

The invention provides a kind of maintaining-managing system based on the integration of online off-line and method, described system includes: server, front end display unit, data exchange module, data support module, man-machine service module, communication service module A, communication service module B, unified security management modules A, unified security management module B, common application service module, system administration services module and human-machine exchange module；Described method, by distinguishing the administration authority of different user, is managed and carries out online off-line data rights management to user, sets up effective online off-line integrated management mechanism and realizes the maintenance management of online off-line integration.

Description

Maintenance management system and method based on online and offline integration

technical field

The invention belongs to the field of power system simulation and calculation analysis, and in particular relates to a maintenance management system and method based on online and offline integration.

Background technique

In the new situation where the scale of the power grid is increasing and the connection is closer, the smart grid dispatching technical support system is a newly developed large-scale dispatching production and management system, which involves many new technologies and defines many new specifications. The dispatching technology supports the system's various application functions New requirements are constantly being placed on hardware and network platforms. This requirement is more stringent to optimize the hardware and network structure of the basic platform, improve the modeling and management level of the power grid model, and improve the overall operating performance and reliability of the system. The application function of this technology provides accurate basic data, which can support the "1+3" mutual backup operation of the national survey and the Sanhua network survey.

How to ensure the reliable and fast exchange and timely and accurate update of grid computing data to meet the ever-changing needs of application systems under the circumstances of increasing grid computing scale, large data update volume, and complex operation mode is what the dispatching technical support system needs to face question. This requires effective integration of system servers, operating systems, and data storage facilities into a unified system on the basis of studying the four types of application business relationships and data flow directions of the smart grid dispatching technical support system, and systematically configures network equipment and security protection equipment. Planning makes the hardware and network structure of the smart grid dispatching technical support system clearer, the data flow direction more reasonable, and the network transmission efficiency higher. It is necessary to comprehensively study the status quo and development trend of online and offline application analysis functions, study the unification of model modeling, distributed model modeling maintenance, model synchronization, and plan sharing in the dispatching technical support system, and integrate and adjust the existing systems accordingly, so that It has become a strong and efficient support platform for the intelligent dispatching technical support system.

Therefore, for this purpose, how to effectively and quickly manage and maintain online and offline integrated data is particularly important. At present, there are many deficiencies in online and offline model maintenance and data management. There are mainly the following points:

(1) A unified computing data management and processing platform has not been established

Over the years, with the development of computer technology, the management of power grid equipment parameters has gradually shifted from paper management to electronic document management, calculation data management, and database system management, but no unified calculation data management and processing platform has been established, such as Central China sub-division and provincial The dispatch adopts the management mode of equipment ledger and calculation data, and the sub-dispatches in North China and the provincial dispatches adopt the stand-alone version PSDB power grid calculation database.

(2) There is no unified and standardized national grid system equipment parameter database

After the State Grid Corporation promulgated the enterprise standard "Specifications for Grid Equipment Parameters and Operation Data for Power System Analysis and Calculation", some provincial commissioners established a grid equipment parameter maintenance database according to the requirements of the standard and the actual situation of their respective grids. But so far there is no unified and standardized equipment parameter library for the national grid system.

(3) There is no unified maintenance and calibration data

The monthly maintenance checks carried out every month are mostly within the scope of the adjustment and management of dispatchers at all levels on their respective calculation data, and insufficient attention is paid to the maintenance outside the scope of adjustment and management, and no unified maintenance and check data has been formed.

(4) Data unified and standardized management needs to be further deepened

Data work is a basic work that requires a lot of time and energy. In order to ensure the normal and orderly continuous operation of grid equipment parameter management, an effective data management mechanism must be established.

At present, the data provided by each sub-adjustment and provincial adjustment, some are original nameplate parameters, and some are processed calculation parameters; the display forms of parameters are also different, there are XLS tables, WORD documents, and paper equipment parameter manuals. The data formats are different, and there is no standardized management in accordance with the enterprise standard "Specifications for Power Grid Equipment Parameters and Operation Data for Power System Analysis and Calculation". It may cause inconsistency between the equipment parameter database and the calculation data used in the scheduling operation mode.

(5) There is no data verification management mechanism

Grid equipment parameters are the basis of grid calculation and analysis. In order to ensure the correctness of calculation results, a data verification management mechanism must be established. The data verification management system is determined by the characteristics of each data provider and user unit in terms of calculation data management. At present, the sources of dispatching data are the three levels of national dispatching, sub-dispatching and provincial dispatching, and the calculation data is managed and checked at different levels. The advantage of this model is that power grids at all levels are familiar with the equipment data and calculation data managed by them, but the problem is that different provinces or sub-dispatches have different levels of data management.

Contents of the invention

In order to overcome the above defects, the present invention provides a maintenance management system and method based on online and offline integration. By distinguishing the management authority of different users, the user is managed and the authority management of online and offline data is established to establish an effective online and offline integration. Integrated management mechanism to realize online and offline integrated maintenance management.

In order to achieve the above object, the present invention provides an online and offline integrated maintenance management system, which is based on an online and offline integrated maintenance management system, adopts a distributed network structure, and is based on a database server and a storage device, including: a server and a front-end display unit; The improvement is that the system includes: data exchange module, data support module, man-machine service module, communication service module A, communication service module B, unified security management module A, unified security management module B, public application service module , a system management service module and a man-machine exchange module; the data exchange module, the data support module and the communication service module A transmit the data received from each data source to the unified security management module A; the server receiving the data transmitted by the unified security management module A, and performing data interaction with the public application service module, the man-machine exchange module, the communication service module B and the system management service module respectively; the unified security The management module B receives the data of the man-machine exchange module and the communication service module B respectively; the front-end display unit displays the data of the public application service module, the unified security management module B and the system management service module .

In the preferred technical solution provided by the present invention, the data exchange module provides real-time data exchange for the system according to the requirements of each module.

In the second preferred technical solution provided by the present invention, the data support module provides unified data support for the maintenance management system.

In the third preferred technical solution provided by the present invention, the data support includes: data support with time scale, massive data support and general data service.

In the fourth preferred technical solution provided by the present invention, the man-machine service module includes functions of display and interaction, visualization support, modular function assembly, distributed system mutual access and secure access.

In the fifth preferred technical solution provided by the present invention, the communication service module A and the communication service module B provide communication support for the modules in the system, including: multi-level load balancing and redundancy design functions.

In the sixth preferred technical solution provided by the present invention, the unified security management module includes: physical security, network security, host system security, application security, data security, remote disaster recovery and data backup functions.

In the seventh preferred technical solution provided by the present invention, the public application service module provides the following services for the system: message and alarm service, report service, time service, workflow service, authority service, CASE service and historical data service.

In the eighth preferred technical solution provided by the present invention, the message and alarm service is used for applications to send messages or alarms to people or other applications, and the service provides strategic processing; the report service is used for application report output; the time service is responsible for maintenance Standard time, providing system time synchronization service; workflow service, providing complete workflow service, including workflow designer and workflow engine; authority service, providing corresponding authority management service for each module, so that each module can use the authority of the platform Management function; CASE service, providing CASE generation, management and retrieval; historical data service, responsible for providing required historical data to each module.

In the ninth preferred technical solution provided by the present invention, the system management service module provides each module in the system with: node management, application management, process management, security management, backup/recovery management, application configuration management and user management Features.

In the tenth preferred technical solution provided by the present invention, the data source includes: SCADA data, online data and offline data.

In the preferred technical solution provided by the present invention, a maintenance management method based on online and offline integration is provided. The improvement is that the method includes the following steps:

(1) The project team members report the engineering project faults that occur to the project team leader through the front-end display unit, and inform the consequences that the faults will affect the online calculation;

(2) The project team leader calls the system management service module and public application module, checks the service system equipment to confirm that the error problem affects the online power grid calculation, and after contacting the provincial dispatcher through the communication service module, the provincial dispatcher reports to the national dispatcher, Confirm the existence of the problem again;

(3) After confirming the error problem through the system management service module, public application module and human-computer interaction module, the national investigators will inform the project team members of the correction methods and measures, and the project team members will apply to the national investigators for permission to modify the project at the district level ;

(4) After the national investigators agree to the application, they will issue authorization to the person in charge of the project team, and the person in charge of the project team will dynamically authorize the project members;

(5) After the project team members modify the data in the data source, the project team leader will determine whether the problems related to the online calculation of the power grid have been solved. If not, the project team leader will report the situation to the national investigators, and the national investigators will verify again Issue processing opinions, otherwise proceed to step 6;

(6) The project team leader reports to the national investigators that the problem has been solved, and cancels the dynamic authorization of the project team members after confirming that the problem has been solved.

In the second more preferred technical solution provided by the present invention, in said step 3, the project team member applies upwards for modification authority; the project team leader modifies the authority of the project team member from static authorization to dynamic authorization; static authorization is The user is authorized by the project owner, and the online data cannot be changed with static authorization; the dynamic authorization is authorized by the project team leader when the project is in use, and the online data can be changed with dynamic authorization.

In the third more preferred technical solution provided by the present invention, in the step 3, project faults include: engineering project faults, job-level faults, and partition-level faults; wherein, the priority of engineering project faults is the highest, followed by job faults. level faults, and finally partition-level faults.

In the fourth preferred technical solution provided by the present invention, in the step 5, the data support module and the data exchange module are called to modify the data.

In the fifth preferred technical solution provided by the present invention, in step 6, the unified security management module supervises and monitors data security in the process of solving project failures.

Compared with the prior art, the present invention provides an integrated online and offline maintenance management system and method, which realizes unified maintenance and management of online and offline models through user management and authority management, and distinguishes the management authority of different users. Users manage and manage online and offline data rights, establish an effective online and offline integrated management mechanism to realize online and offline integrated maintenance and management, and can detect data errors in time to achieve online stability, monitoring, and early warning functions. Timely discover potential safety hazards in the power system, propose solutions, and achieve work efficiency.

Description of drawings

Figure 1 is a schematic diagram of the data rights management function.

Fig. 2 is a schematic structural diagram of an online and offline integrated maintenance management system.

detailed description

Provides a maintenance management method based on online and offline integration. This method manages users and manages online and offline data by distinguishing the management rights of different users, and establishes an effective online and offline integrated management mechanism to realize online and offline Integrated maintenance management, the method includes the following steps:

1. Establish an online and offline data management mechanism

The online and offline integrated maintenance and management of the power grid shall be managed by the power dispatching communication center (hereinafter referred to as provincial dispatching). According to the unified guidance of the provincial survey, each region is responsible for dispatching at different levels, and the provincial survey is uniformly maintained.

In the first step, provincial dispatching refers to the management organization of power grid stability calculation and analysis, which is responsible for the collection, review, splicing, archiving, and release of calculation data to the provincial dispatchers in a unified manner.

Among them, the dispatching data management of each region in Step 1 refers to carrying out work under the leadership of the units in each region, and accepting the business management and technical guidance of the provincial dispatch.

Among them, the dispatching at the network and provincial levels should respectively set up a person in charge of dispatching calculation and analysis data at the same level, responsible for the coordination of the upper and lower levels, as well as the collection, sorting, submission, reception and version management of the calculation and analysis data of the local network. All network surveyors shall timely collect, sort out, calculate and analyze data as required, and submit them to the national surveyor. After the network commissioning review, provide the data that can be calculated on the network, and release the calculation data issued by the superior dispatcher to the provincial commissioner.

Power grid planning, production and operation, infrastructure, scientific research and other relevant departments (units) have the responsibility and obligation to provide new (modified, expanded) equipment parameters to the dispatching department, and cooperate with dispatching at all levels to do a good job in the construction of power grid calculation and analysis data.

2. Clarify online and offline integrated data management responsibilities

The network commissioning is responsible for unified guidance and coordination, organizing the formulation of relevant regulations and regulations, and improving the entire network computing data management process system. Fully responsible for the collection, review, splicing, and archiving of power grid calculation and analysis data. Release the calculation and analysis data issued by the superior dispatch to the provincial dispatchers, and do a good job in the version management of the calculation and analysis data. Raise the original data with doubts, and be responsible for requesting relevant provincial commissioners and relevant departments to clarify; for unqualified test calculation and analysis data, be responsible for requesting relevant dispatching and coordinating testing units to conduct re-testing until the provided data is qualified. Establish the original file of the calculation and analysis data of the direct adjustment range of the power grid, be responsible for the collection, sorting, and input of the original data of the calculation and analysis of the direct adjustment range, and be responsible for the integrity, correctness and validity of the data. Formulate power grid calculation and analysis database standards, unify the reporting format and requirements, and build an efficient, safe, and stable network-wide database management platform. Responsible for the establishment of the equipment database under the jurisdiction of the network survey, receive and review the calculation and analysis data of the provincial survey, establish the power grid calculation and analysis database, and be responsible for its correctness and effectiveness. Responsible for power grid calculation data extraction, splicing, and verification, and provide calculation and analysis data and other related services for the entire network. Formulate relevant regulations and regulations for calculation and analysis data management, organize relevant basic scientific research, technical exchanges and training, and implement professional management and technical supervision of power grid calculation and analysis data. Responsible for organizing and holding a power grid data management work conference every year.

The network commissioning is responsible for cooperating with the provincial dispatching department to do a good job in the data management of the power grid in the region. Refer to these Measures to formulate local data management regulations. Responsible for the collection, sorting, entry, and submission of the original data of power grid calculation and analysis in the region, and summarize and form the calculation and analysis data in the region, and be responsible for the integrity, correctness and validity of the data. Accept the calculation and analysis data issued by the State Research Institute, and do a good job in data version management. Cooperate with superior scheduling to review the calculation and analysis data in question in the region. If the data test is unqualified, the relevant testing unit should be required to re-test, and the test report should be submitted to the regional dispatcher in time. Establish the original file of calculation and analysis data in the region; establish the file of calculation and analysis data reported in the region.

The regional dispatchers are responsible for implementing the implementation opinions of the network survey and cooperating with various tasks of the network survey.

3. Implement online and offline integrated data management process

(1) Power grid planning, infrastructure, production departments, and grid-connected power plants have the responsibility and obligation to report the collected new (modified, expanded) equipment parameters to the relevant dispatching department in a timely manner, and attach a copy of the original data certificate submitted on site (or electronically scanned documents).

(2) The power grid planning department should provide the network dispatching department with the planning parameters of the new equipment in the network in the next year in the form of written seal, and be responsible for the correctness and validity of the original data. In case of planning and construction adjustments, the dispatching department shall be notified in time.

(3) The power grid infrastructure department should provide the original data of the equipment in the infrastructure stage to the dispatching department of the network in the form of written seal, and be responsible for the correctness and validity of the original data.

(4) The production technology department shall provide all power transmission and transformation equipment parameters and operating limits within the jurisdiction to the dispatching department of the network in the form of written seal, and shall be responsible for its correctness and effectiveness. Timely collect the measured parameters and operating limits of new (modified, expanded) equipment within the jurisdiction, sign and seal and submit to the dispatching department in writing.

(5) The grid-connected power generation enterprise is responsible for the filing and maintenance of the original data and operating limits of the relevant equipment of the power plant, and is responsible for the correctness and validity of the original equipment data submitted by the factory. The original parameters and actual measured parameters of the generator, excitation, and speed regulation of the factory should be submitted to the dispatching department of the network in a written form with a seal in time according to the regulations.

(6) The test unit completes the parameter test of the power plant unit according to the relevant standards, does a good job of merging the measured parameters, and provides the test report to the tested unit and the relevant dispatching department. and National Grid Data Center.

The data submitted by the network survey received by the provinces should be implemented in accordance with the internal management system, and professionals should be arranged to conduct a comprehensive review as soon as possible. If the data is unreasonable or the measured parameters are unqualified during the review, you should take the initiative to contact the relevant provincial survey personnel to explain the inadequacy. Reasons for qualified parameters, and require them to report again, and inform the network adjustment at the same time. For the data that can be properly modified or corrected by professionals, the data center can modify, but there should be a record after the event, and the relevant local surveyor should be notified.

Among them, in the third step, the power grid dispatching parameters are important basic data for power grid calculation and analysis. The data entry and verification are completed by the cooperation of all parties. They should be backed up in time after the change to ensure the integrity and security of the parameter database.

(7) For new, rebuilt and expanded power generation, transmission, and transformation engineering equipment, all relevant units shall submit various dispatching parameters and wiring diagrams (SVG format) to the network dispatching general office according to the provincial commissioning requirements; then the data flow is transferred to other Each place; after each place checks, supplements and confirms its related parameters, all kinds of parameters are formally put into storage, and the maintenance and management of the parameter library is in charge of the automation department. After the new equipment is officially put into operation, the maintenance personnel of the automation department will import the parameters into the official operating state in order to complete various calculations on the power grid.

(8) The official data issued by the national survey and the network survey will be released to the provincial surveys through OMS in a timely manner. The officially released data shall be implemented by each user unit in accordance with the confidentiality principle of State Grid Corporation, and shall not be modified or transferred without approval.

4. Online and offline integrated management system and management method

Users of the online and offline integrated management system access the database through the Internet. Basic users include: dispatching departments, protection departments, and planning departments of power companies at all levels, system maintenance personnel of the Electric Power Research Institute, and other system-related personnel.

The online and offline integrated management system should adopt a distributed network structure, that is, the system adopts a B/S structure design, based on a network database, and the database server and storage devices are deployed in the province. Provincial survey users access the database through web browsers, and perform data operations such as query, modification, addition, and deletion. The whole system includes: data exchange module, data support module, man-machine service module, communication service module, unified security management module, public application service module, system management service module, etc. Each module is introduced as follows:

(1) Data exchange module: It is the most basic requirement of the system to provide a unified data exchange mechanism for applications and application support software. According to application requirements, the online and offline integrated management system must support real-time, quasi-real-time, and non-real-time applications; support Enterprise-level application integration; support for wide-area applicability; support for general software access and other features.

(2) Data support module: The application of the online and offline integrated management system provides unified data support. It should be designed according to the distributed data center to provide: regular data support; time-scaled data support; massive data support; common data formation services; forming unified data management and maintenance features.

(3) Human-machine service module: a general-purpose human-machine support system, which should be able to realize extensive support for applications under a unified human-machine framework. It is the design goal to realize multiple applications in one set of human-machine, and the provision of human-machine must solve various applications. Human-Machine Support Issues. The system can realize complex display and interaction; visualization support; modular function assembly; distributed system mutual access; unified security access and other functions.

(4) Communication service module: Componentized communication services provide specialized communication support for various applications in the system. Communication services not only support various professional standards, but also provide general communication services to achieve modular multi-application communication Support; covering the current standard communication protocols of various systems; multi-level load balancing and redundancy design and other purposes.

(5) Unified security management module: Unified security management realizes comprehensive security management and support, including: physical security, network security, host system security, application security, data security, remote disaster recovery, data backup, etc. It should meet the requirements of the power secondary security protection scheme; meet the national four-level security protection requirements; unified identity authentication and user role management requirements, etc.

(6) Public application service module: the system provides unified public application services to support applications at a higher level. These services can be directly referenced by applications. In some cases, public application services can quickly generate typical application services through configuration and combination. application. The public application service adopts modular development and continues to grow with the deepening of the application. The system provides the following application services: Message and alarm service: used for the application to send messages or alarms to people or other applications, and the service provides strategic processing. Reporting service: used for application report output. Time service: Responsible for maintaining standard time and providing system time synchronization service. Workflow service: Provide complete workflow service, including workflow designer and workflow engine. Authority service: As a public service, authority service provides corresponding authority management services for each application, so that each application can conveniently use the authority management function of the platform. CASE service: Provide CASE generation, management, retrieval and other functions, which is an important basic service for power applications. Historical data service: responsible for providing the required historical data to the application.

(7) System management service module: system management service, which provides a unified system management service within the entire system, and the service content includes all-round configuration, monitoring and management services such as hardware, process, and system resources. The basic modules include: node management; application management; process management; security management; backup/restore management; application configuration management; user management.

The online and offline integrated management method adopts the authority management method. Among them, authority management refers to the authority control of the types and scope of data that users can access, data operation methods, etc., so as to ensure the security and reliability of system data. The main functions of data permissions are shown in Figure 1.

Three-level data authority verification design at project level, job level, and partition level: project-level verification taking projects as examples; job-level verification taking jobs as examples within projects; partition-level verification taking partitions, data groups, and voltage levels as examples. There is a logical AND relationship between the three data permission views of partition-level verification. For the basic library, because there is no concept of job, the actual two-level verification is engineering level and partition level. All three levels of verification have read and write permissions.

Among them, permissions are designed by operation group. Authorization can be divided into static authorization and static authorization. Static authorization is authorized by the project owner, and dynamic authorization is authorized by the operation team leader when the project is used. The main purpose of the operation group is to realize the dynamic authorization of the project. When a project is created, an operation group is automatically created, and each project has only one operation group. Each operation group has a leader who can reassign permissions to the personnel in the group, but the newly assigned team member permissions cannot be higher than the static permissions assigned to the team members by the project owner. The dynamic permissions of the people in the group are temporary. When the operation group is disbanded, the permissions of the people in the group will be restored to the permissions before the user joined the group.

The difference between the read permission and the write permission is that the write permission includes the read permission (the one with the write permission has the read permission).

Among them, the data authorization rule refers to: the data authority only performs one-way permission (forward) authorization, and does not perform prohibition (reverse) authorization. The priority of the three-level authority management is: project level > job level > partition level. That is, the priority of project-level authorization is higher than that of job-level authorization, that is, only after a certain user has project data permission, can the job-level authorization of a smaller degree within the project be performed; similarly, only after a user has job-level data permission, can partition-level authorization be performed .

The default data permission definition rule means that each user has full read and write permissions for the project data created by himself, and has no permission for project data created by other users belonging to the same enterprise user by default. There is no authority for engineering data created by individual users under other enterprise users.

The data scope of data rights management refers to: component data in the basic library (not including the public parameter part), component data in the power flow calculation library, and component data in the temporary stability calculation library.

User: Users can be divided into enterprise users and non-enterprise users. Non-enterprise users can only access their own data. Enterprise users are divided into four types: enterprise administrator, project owner (creator), operation group leader, and staff. Enterprise administrator rights: manage users; manage project owners; specify who can create projects. Project owner authority: static authority authorization; designate who is the leader of the operation group; set privileged users (read privileges). There can be multiple privileged users, and privileged users can be regarded as project owners. Operation group leader authority: add and subtract team members; dynamically authorize team members. During dynamic authorization, the project owner can also be excluded from the workgroup, but the workgroup can be disbanded and cannot be forcibly entered into the workgroup.

Due to different identities, users are authorized to access different system functions. Rights management assigns and verifies users' function rights. Provide each user with a personalized operation interface through the distribution of functional rights.

The online and offline integrated maintenance management system and method are further described through the following embodiments.

As shown in Figure 2, an online and offline integrated maintenance management system is based on an online and offline integrated maintenance management system, adopts a distributed network structure, and is based on a database server and storage device, including: server, front-end display unit, data exchange module, data support module, man-machine service module, communication service module A, communication service module B, unified security management module A, unified security management module B, public application service module, system management service module and man-machine exchange module; The data exchange module, the data support module and the communication service module A transmit the data received from each data source to the unified security management module A; the server receives the data transmitted by the unified security management module A, and Perform data interaction with the public application service module, the man-machine exchange module, the communication service module B and the system management service module respectively; the unified security management module B receives the man-machine exchange module and the The data of the communication service module B; the front-end display unit displays the data of the public application service module, the unified security management module B and the system management service module.

The data exchange module provides real-time data exchange for the system according to the requirements of each module.

The data support module provides unified data support for the maintenance management system.

In the third preferred technical solution provided by the present invention, the data support includes: data support with time scale, massive data support and general data service.

The human-machine service module includes functions of display and interaction, visualization support, modular function assembly, distributed system mutual access and secure access.

Communication service module A and communication service module B provide communication support for the modules in the system, including: multi-level load balancing and redundancy design functions.

The unified security management module includes: physical security, network security, host system security, application security, data security, remote disaster recovery and data backup functions.

The public application service module provides the following services for the system: message and alarm service, report service, time service, workflow service, authority service, CASE service and historical data service.

Message and alarm service, used for applications to send messages or alarms to people or other applications, and the service provides strategic processing; report service, used for application report output; time service, responsible for maintaining standard time and providing system time synchronization services; workflow Services, providing complete workflow services, including workflow designer and workflow engine; authority services, providing corresponding authority management services for each module, enabling each module to use the authority management functions of the platform; CASE services, providing CASE generation, Management and retrieval; historical data service, responsible for providing required historical data to each module.

The system management service module provides each module in the system with functions of node management, application management, process management, security management, backup/recovery management, application configuration management and user management.

Data sources, including: SCADA data, online data and offline data.

A maintenance management method based on online and offline integration is provided, and the method includes the following steps:

(1) The project team members report the engineering project faults that occur to the project team leader through the front-end display unit, and inform the consequences that the faults will affect the online calculation;

(2) The project team leader calls the system management service module and public application module, checks the service system equipment to confirm that the error problem affects the online power grid calculation, and after contacting the provincial dispatcher through the communication service module, the provincial dispatcher reports to the national dispatcher, Confirm the existence of the problem again;

(3) After confirming the error problem through the system management service module, public application module and human-computer interaction module, the national investigators will inform the project team members of the correction methods and measures, and the project team members will apply to the national investigators for permission to modify the project at the district level ;

(4) After the national investigators agree to the application, they will issue authorization to the person in charge of the project team, and the person in charge of the project team will dynamically authorize the project members;

(5) After the project team members modify the data in the data source, the project team leader will determine whether the problems related to the online calculation of the power grid have been solved. If not, the project team leader will report the situation to the national investigators, and the national investigators will verify again Issue processing opinions, otherwise proceed to step 6;

(6) The project team leader reports to the national investigators that the problem has been solved, and cancels the dynamic authorization of the project team members after confirming that the problem has been solved.

In said step 3, the project team members apply upwards for modification authority; the project team leader modifies the authority of the project team members from static authorization to dynamic authorization; static authorization is to authorize the user by the project owner, static authorization The online data cannot be changed; the dynamic authorization is authorized by the project team leader when the project is used, and the online data can be changed dynamically.

In the step 3, project faults include: engineering project faults, job-level faults and partition-level faults; among them, engineering project faults have the highest priority, followed by job-level faults, and finally partition-level faults.

In said step 5, the data support module and the data exchange module are called to modify the data.

In the step 6, the unified security management module supervises and monitors the data security in the process of solving the project failure.

in,

National Dispatcher: The dispatcher on duty of the State Grid.

Provincial Dispatchers: Dispatchers on duty in provincial power grids.

Project team leader: the person in charge of technical support for various provincial power grid projects under the State Grid.

Project team members: technical support staff for various provincial power grid projects under the State Grid.

Online and offline integrated management system. This system is mainly composed of public application service module, unified security management module, man-machine exchange module, communication service module, system management service module, data support module, data exchange module, public application service module and so on. Take a new construction project in a certain province as an example. Adding a new project means adding a project group. When an error occurs in the system, and the error affects the calculation data of the power system. Need to go through the following steps:

1. The project team members report to the project team leader about errors in the engineering project through the front-end display, and inform that the online data problem will affect the consequences of online calculations.

2. The project team leader checks the service system or equipment through the call of the system management service module and the public application module to confirm that the error problem affects the online power grid calculation. After contacting the provincial investigation through the communication service module, the provincial investigation personnel will immediately report to the relevant personnel of the national investigation. Confirm again that the problem exists.

3. After confirming the error problem through the system management service module, public application module and human-computer interaction module, the national investigators will inform the project team members of the correction methods and measures. Members of the project team apply upward for permission to modify the project partition level. Although the project level usually grants static authorization to project team members, the static authorization is authorized by the project owner to the user. But the authority is not enough to change the online data set of this project.

4. After the national investigators agree to the application, they will issue authorization to the person in charge of the project team. The project team leader dynamically authorizes project members. Dynamic authorization is authorized by the operation group leader when the project is used. In the entire online and offline integration, the engineering project is the highest priority. At this time, if there are other job-level problems or division-level problems, the project team must prioritize engineering problems. Job-level failures follow, and partition-level failures last.

5. After the project team members modify the data in the data source according to the relevant opinions of the national survey. Must be approved by the project team leader. The project team leader determines whether the problems related to grid online calculation have been solved. If there is no solution, the project team leader needs to report the situation to the relevant personnel of the National Research Institute. Relevant personnel of the State Investigation Bureau verified and issued handling opinions again. Among them, the data modification process needs to call the data support module and the data exchange module.

6. If the online data problem has been resolved. That is to say, there is no problem with online power flow calculation. The project team leader gave feedback to the relevant personnel of the national survey. Cancel the dynamic authorization of project team members after confirming that the problem is solved. Among them, the unified security management module supervises and monitors the data security of the whole process.

If there are other problems about online and offline integration, they should generally be dealt with according to the above method. The relationship between online and offline integrated management systems is shown in Figure 2.

It should be declared that the contents and specific implementation methods of the present invention are intended to prove the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the protection scope of the present invention. Those skilled in the art may make various modifications, equivalent replacements, or improvements under the inspiration of the spirit and principles of the present invention. But these changes or modifications are all within the protection scope of the pending application.

Claims (14)

1. A maintenance management system based on online and offline integration adopts a distributed network structure and is based on a database server and a storage device, and comprises: a server and a front-end display unit; characterized in that the system comprises: the system comprises a data exchange module, a data support module, a man-machine service module, a communication service module A, a communication service module B, a unified security management module A, a unified security management module B, a public application service module, a system management service module and a man-machine exchange module; the data exchange module, the data support module and the communication service module A transmit the received data of each data source to the unified security management module A; the server receives the data transmitted by the unified security management module A and performs data interaction with the public application service module, the man-machine exchange module, the communication service module B and the system management service module respectively; the unified security management module B receives the data of the man-machine exchange module and the communication service module B respectively; the front-end display unit displays data of the public application service module, the unified security management module B and the system management service module;

the public application service module provides the following services for the system: message and alarm service, report service, time service, workflow service, authority service, CASE service and historical data service;

the message and alarm service is used for sending messages or alarms to people or other applications by the application and providing strategic processing by the service; the report service is used for outputting an application report; the time service is responsible for maintaining standard time and providing system time setting service; the workflow service provides complete workflow service and comprises a workflow designer and a workflow engine; the authority service provides corresponding authority management service for each module, so that each module uses the authority management function of the platform; the CASE service provides the generation, management and retrieval of the CASE; the historical data service is responsible for providing required historical data for each module;

the permission service includes: the data authority verification design of engineering level, operation level and partition level is carried out; the priority of the three-level data authority verification is as follows: project level > operation level > partition level; and the data authority only carries out one-way permission authorization.

2. The system of claim 1, wherein the data exchange module provides real-time data exchange for the system based on the requirements of each module.

3. The system of claim 1, wherein the data support module provides unified data support for the maintenance management system.

4. The system of claim 3, wherein the data support comprises: the system comprises a time mark data support, a mass data support and a general data service.

5. The system of claim 1, wherein the human machine service module comprises: the functions of display and interaction, visual support, modular function assembly, distributed system mutual access and safe access.

6. The system of claim 1, wherein the communication service module a and the communication service module B provide communication support for the modules in the system, and comprise: multi-level load balancing and redundancy design functions.

7. The system of claim 1, wherein the unified security management module comprises: physical security, network security, host system security, application security, data security, remote disaster recovery, and data backup functions.

8. The system of claim 1, wherein the system management service module provides, for each module in the system: node management, application management, process management, security management, backup/restore management, application configuration management, and user management.

9. The system of claim 1, wherein the data source comprises: SCADA data, online data and offline data.

10. An online-offline integration-based maintenance management method generated by the maintenance management system according to claim 1, characterized by comprising the steps of:

(1) the project group member reports the project fault of the project group leader through the front end display unit and informs that the result of the on-line calculation is influenced by the project fault;

(2) the project group leader calls a system management service module and a public application module, checks equipment and confirms that the fault affects on-line power grid calculation, and after contacting provincial dispatching personnel through a communication service module, the provincial dispatching personnel reports to national dispatching personnel and confirms the existence of the fault again;

(3) after the national coordinator confirms the fault through the system management service module, the public application module and the human-computer interaction module, the national coordinator tells the project group members of the correction method and measure, and the project group members apply for modification permission to the national coordinator;

(4) after the national dispatching personnel approve the application, issuing project group leader authorization, and dynamically authorizing project members by the project group leader;

(5) after the project group members modify data in the data source, the project group leader determines whether the problems related to the online calculation of the power grid are solved, if not, the project group leader reports the situation to a state transfer staff, and the state transfer staff verifies and issues the treatment opinions again, otherwise, the step 6 is carried out;

(6) the project team leader feeds back the problem to the national call manager, and cancels the dynamic authorization of the project team members after confirming the problem is solved.

11. The method of claim 10, wherein in said step (3), project team members apply modification rights upward; the project group leader changes the authority of the project group member from static authorization to dynamic authorization; the static authorization is that the engineering owner authorizes the user, and the static authorization cannot change the online data; dynamic authorization is authorized by the project group leader when the project is in use, and changes are made to the online data by the dynamic authorization.

12. The method of claim 10, wherein in step (3), the item failure comprises: engineering project faults, job level faults and partition level faults; the priority of the project fault is the highest, the next is the job level fault, and the last is the partition level fault.

13. The method of claim 10, wherein in step (5), the data support module and the data exchange module are invoked to modify the data.

14. The method of claim 10, wherein in step (6), a unified safety management module oversees and monitors data safety in resolving a project failure.