CN108539740A - A kind of power grid accident anticipation simulation system and its method - Google Patents
A kind of power grid accident anticipation simulation system and its method Download PDFInfo
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- CN108539740A CN108539740A CN201810453951.2A CN201810453951A CN108539740A CN 108539740 A CN108539740 A CN 108539740A CN 201810453951 A CN201810453951 A CN 201810453951A CN 108539740 A CN108539740 A CN 108539740A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
The present invention relates to a kind of power grid accident anticipation simulation system and its method, which is realized based on D5000 platforms, including：Power grid accident envisions analog subsystem, stable online management subsystem, safety on line and checks subsystem, power flow transfer scheme database and stability control strategy expert system database.The system obtains the stable information for judging to need by stable online management subsystem, pass through stabilization of power grids result of calculation, the power flow transfer scheme system database of various electric network faults occurs for structure, utilize current Power Flow Information, the power flow transfer scheme of electric network fault, actual Policy Table carries out the result of the action simulation of fault simulation and stability control device in stability control device, gives the result of the action of simulated failure and simulation to safety on line nucleus correcting system, carries out Security Checking.Analog form is envisioned using power grid accident, the failure that analog network may occur simultaneously provides corresponding stability control strategy, then result is sent to safety on line analysis computing system and is checked；When actually occurring 1 accidents of N, 2 accidents of N, dispatcher can make decisions immediately prevents transmission line of electricity successive tripping, and accident was eliminated in the budding period.
Description
Technical field
The present invention relates to electric power network technical fields, and in particular to a kind of power grid accident anticipation simulation system and its method.
Background technology
Currently, China's power grid gradually develops to national network by power distribution network, area power grid, provincial power network and interprovincial power networks,
And North America and Europe have formed transnational networking.The stability and reliability of power grid can be improved in Power System Interconnection, can be mutual between power grid
It mutually supports, is spare each other, but being also easy to influence each other because being integrally formed after Power System Interconnection, between power grid.Go out in power grid one
Now exception or when failure, often occurs the accident of linksystem, so as to cause large-area power-cuts in the weak link of power grid.
The cause of bulk power grid large-scale blackout is all common electric power accident, but compared with minor scale power net, the anti-accident of bulk power grid
Ability is stronger, stability higher, frequency and voltage are held in allowable range in most cases, it is ensured that lasting to supply
Electricity.But when there are weak link, transmission systems without spare capacity, network structure is unreasonable and there are electromagnetic looped networks etc. to ask for power grid
When topic, there is the case where overload and successive tripping in power transmission line Louis, eventually leads to system oscillation, electric network from collapsing.
Therefore to prevent large-scale blackout, the method for operation and the safety ten of power grid are analyzed in time using Power System Simulator
Divide important.Existing relay protection and automatic device, Automatic monitoring systems cannot fully meet the requirement of power network development,
SCADA system acquisition is systematic steady state information, and the information that SCADA system provides only is monitored processing, shortage pair by EMS
The decision support of scheduling.
Invention content
The present invention for the technical problems in the prior art, provides a kind of power grid accident anticipation simulation system and its side
Method envisions analog form using power grid accident, and failure that analog network may occur simultaneously provides corresponding stability control strategy, then by result
Safety on line analysis computing system is sent to be checked；When actually occurring N-1 accidents, N-2 accidents, dispatcher can make immediately
Going out decision prevents transmission line of electricity successive tripping, and accident was eliminated in the budding period.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
On the one hand, the present invention provides a kind of power grid accident anticipation simulation system, which is realized based on D5000 platforms,
It is characterized in that, including：Power grid accident envisions analog subsystem, stable online management subsystem, safety on line and checks subsystem, tide
Circulation moves scheme database and stability control strategy expert system database；
The power grid accident envisions analog subsystem, for passing through stable online management system power system operating mode and trend
Data, voltage and current, active reactive Power Flow Information needed for stable judgement, determine the operation object of simulation system；For to closing
Key circuit or equipment carry out accident simulation；
The power flow transfer scheme database, is established by stability Calculation interpretation of result, for storing power flow transfer scheme；
The stability control strategy expert system database passes through the data check of early period, collection and regional power grid stabilimeter
It calculates result to establish, for storing known stability control strategy；
The safety on line checks the accident analog result that subsystem is used to envision the power grid accident analog subsystem
Security Checking is carried out, analyzes whether existing stability control strategy needs to change.
Further, the power grid accident anticipation analog subsystem is also networked with EMS dispatch automated systems, for receiving
The real time data of EMS carries out dynamic security analysis to power grid forecast accident, determines security and stability control strategy.
Further, the power grid accident anticipation analog subsystem includes that stable information collects detection module, fault simulation point
Analyse module, intelligent decision module, result transmission check module；
The stable information is collected detection module and is used for so that current net is presented to user with the formal intuition of statistical graph
The real-time operating conditions and Power Flow Information of network；
The fault simulation analysis module is determined for analysis according to demand needs regional power grid circuit to be simulated or equipment
Information carries out accident simulation, and power flow solutions and accident impact range after intellectual analysis accident distinguish risk size；
The intelligent decision module is used for after analyzing simulated accident, is selected in stability control strategy expert database
Policy Table under the corresponding method of operation, the stability control strategy of simulated accident is provided according to power flow transfer result of calculation；
The result transmission checks module and is used to transmit the flow data and stability control strategy that analysis is calculated, and is by simulation
Safety on line nucleus correcting system is transmitted to when the fructufy of system, whether after practical Load flow calculation, it is appropriate to check the stability control strategy,
Otherwise propose that new steady control is suggested.
Further, the stable online management subsystem includes multiple regions stabilizing control system；
The area stability control system refer to for solve a regional power grid in stable problem be mounted on two and
The safety and stability control device of more than two plant stands, the system for the composition that links together through information channel and Communications Interface Unit,
It includes：One main website and multiple substations, the main website and substation are with multiple terminal stations through information channel and communication interface phase
Connection.
Further,
The main website is arranged in the power plant in load-center substation or with load-center substation same position, for summarizing each station
Operating condition information, state estimation is carried out to regional power grid, identifies the method for operation of regional power grid, to regional power grid by giving
Fixed contingency set carries out dynamic security estimation, it is online form security and stability control Policy Table or install off-line calculation in advance obtain
The control scheme list arrived, and each substation will be transmitted in relation to method of operation information and control scheme list；For receiving master
It stands and when outlet is broken down, according to control scheme list, sending out control command simultaneously to main website and each substation will be controlled by each station
System order is transmitted to terminal station；
The substation is installed in more important substation or the power plant being connected with substation, is used for acquisition substation operating mode
Operation information, and send main website to；For when receiving our station and our station outlet is broken down, according to the control plan in substation
Sketch form sends out control command to main website and each substation and control command is transmitted to terminal station by each station simultaneously；
The terminal station is used to receive the control command that each station transmission comes, and execution controls on the spot, and by control result information
Send higher level station to.
Further, the power flow transfer scheme database and stability control strategy expert system database are when creating, it then follows with
Lower principle：
(1) specification is named
All library name, table name, domain name follow unified naming rule, and carry out necessary explanation, to facilitate design, dimension
Shield, inquiry；
(2) reference of control field
In design, database design management tool appropriate is selected, to facilitate the Distributed Design sum number of developer
Management is audited according to the concentration of group；It can directly be quoted using unified naming rule if the field of design has existed；It is no
Then, it should redesign；
(3) library table Repetitive controller
In the design process, if it find that most of field is all existing, it should suspect whether designed library table is existing；
By the inquiry to library table where field and respective design personnel, confirm whether library table repeats really；
(4) con current control
Con current control should be carried out in design, i.e., for the same library table, have control in same time one-man,
Other people can only inquire.
On the other hand, the present invention is based on above systems, also provide a kind of power grid accident anticipation analogy method, including following step
Suddenly：
Step 1, power system operating mode and flow data, the electricity needed for stable judgement are obtained by stable online management system
Current voltage, active reactive Power Flow Information, determine the operation object of simulation system；
Step 2, by stability Calculation interpretation of result, damp transfer scheme database is built；By the data check of early period, receive
Collection and regional power grid stability Calculation are as a result, structure power grid stability control strategy expert system database；
Step 3, accident simulation is carried out to critical circuits or equipment by accident simulation system, according to power flow transfer database
Flow data after calculating accident analyzes accident impact and risk size；Accident analog result is shown in system in graphical form
On interface, heavy duty and overload circuit indicate its flow data with yellow and red numerical respectively；
Step 4, stability control strategy expert system database is called according to result of calculation, is then transmitted to accident analog result
Safety on line nucleus correcting system carries out Security Checking, analyzes whether existing stability control strategy needs to change.
The beneficial effects of the invention are as follows：Power grid accident anticipation simulation system is application of the framework on Unified Supporting Platform
System, it is complete by acquiring the basic data of static stability analysis, transient stability analysis, dynamic stability analysis, Voltage Stability Analysis
At functions such as information filing, statistical query, intellectual analysis；Realize that control centre in normal epoch, carries out power grid critical circuits
Operation monitoring, accident simulation, the result of the action analysis, result communication, provide accurately for management and running personnel and other professionals
Stability control strategy.
Prediction failure simulation system needs to send result to safety on line nucleus correcting system after simulating accident, online to pacify
Whether the handling result that full nucleus correcting system carries out Load flow calculation check simulation system is reliable, finally gives optimal stability control strategy.
Prediction failure simulation system has the function of electric network swim analysis and given accident treatment strategy.From safety and stability control
After power flow transfer is obtained in the data that device processed uploads than result of calculation, calculated for simulated failure situation, it can be direct
Show that the circuit overloaded under the malfunction and overload degree are obtained easily to analyze region or Partial Load Flow
Accident treatment strategy.Once the hazard model imagined in prediction scheme occurs, people can according to set operation sequence and hints on operation,
Fast reaction, emergency processing, to achieve the purpose that reduce causality loss or avoid accident.
Description of the drawings
Fig. 1 is present system structure diagram；
Fig. 2 is area stability control system structure diagram of the present invention；
Fig. 3 is the method for the present invention flow chart.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
On the one hand, the present invention provides a kind of power grid accident anticipation simulation system, which is realized based on D5000 platforms, such as
Shown in Fig. 1, including：Power grid accident envisions analog subsystem, stable online management subsystem, safety on line and checks subsystem, tide
Circulation moves scheme database and stability control strategy expert system database；
The power grid accident envisions analog subsystem, for passing through stable online management system power system operating mode and trend
Data, voltage and current, active reactive Power Flow Information needed for stable judgement, determine the operation object of simulation system；For to closing
Key circuit or equipment carry out accident simulation；
The power grid accident anticipation analog subsystem is also networked with EMS dispatch automated systems, for receiving the real-time of EMS
Data carry out dynamic security analysis to power grid forecast accident, determine security and stability control strategy.
Power grid accident anticipation analog subsystem include stable information collect detection module, fault simulation analysis module,
Module is checked in intelligent decision module, result transmission；
The stable information is collected detection module and is used for so that current net is presented to user with the formal intuition of statistical graph
The real-time operating conditions and Power Flow Information of network；
The fault simulation analysis module is determined for analysis according to demand needs regional power grid circuit to be simulated or equipment
Information carries out accident simulation, and power flow solutions and accident impact range after intellectual analysis accident distinguish risk size；
The intelligent decision module is used for after analyzing simulated accident, is selected in stability control strategy expert database
Policy Table under the corresponding method of operation, the stability control strategy of simulated accident is provided according to power flow transfer result of calculation；
The result transmission checks module and is used to transmit the flow data and stability control strategy that analysis is calculated, and is by simulation
Safety on line nucleus correcting system is transmitted to when the fructufy of system, whether after practical Load flow calculation, it is appropriate to check the stability control strategy,
Otherwise propose that new steady control is suggested.
The stable online management subsystem includes multiple regions stabilizing control system；
The area stability control system refer to for solve a regional power grid in stable problem be mounted on two and
The safety and stability control device of more than two plant stands, the system for the composition that links together through information channel and Communications Interface Unit,
Such as Fig. 2 so comprising：One main website and multiple substations, the main website and substation with multiple terminal stations through information channel and
Communication interface is connected.
The main website is arranged in the power plant in load-center substation or with load-center substation same position, for summarizing each station
Operating condition information, state estimation is carried out to regional power grid, identifies the method for operation of regional power grid, to regional power grid by giving
Fixed contingency set carries out dynamic security estimation, it is online form security and stability control Policy Table or install off-line calculation in advance obtain
The control scheme list arrived, and each substation will be transmitted in relation to method of operation information and control scheme list；For receiving master
It stands and when outlet is broken down, according to control scheme list, sending out control command simultaneously to main website and each substation will be controlled by each station
System order is transmitted to terminal station；
The substation is installed in more important substation or the power plant being connected with substation, is used for acquisition substation operating mode
Operation information, and send main website to；For when receiving our station and our station outlet is broken down, according to the control plan in substation
Sketch form sends out control command to main website and each substation and control command is transmitted to terminal station by each station simultaneously；
The terminal station is used to receive the control command that each station transmission comes, and execution controls on the spot, and by control result information
Send higher level station to.
The power flow transfer scheme database, is established by stability Calculation interpretation of result, for storing power flow transfer scheme；
The stability control strategy expert system database is built by the data check of early period, collection and regional power grid stability Calculation result
It is vertical, for storing known stability control strategy；
The power flow transfer scheme database and stability control strategy expert system database are when creating, it then follows following principle：
(1) specification is named
All library name, table name, domain name follow unified naming rule, and carry out necessary explanation, to facilitate design, dimension
Shield, inquiry；
(2) reference of control field
In design, database design management tool appropriate is selected, to facilitate the Distributed Design sum number of developer
Management is audited according to the concentration of group；It can directly be quoted using unified naming rule if the field of design has existed；It is no
Then, it should redesign；
(3) library table Repetitive controller
In the design process, if it find that most of field is all existing, it should suspect whether designed library table is existing；
By the inquiry to library table where field and respective design personnel, confirm whether library table repeats really；
(4) con current control
Con current control should be carried out in design, i.e., for the same library table, have control in same time one-man,
Other people can only inquire.
The safety on line checks the accident analog result that subsystem is used to envision the power grid accident analog subsystem
Security Checking is carried out, analyzes whether existing stability control strategy needs to change.
On the other hand, the present invention is based on above systems, also provide a kind of power grid accident anticipation analogy method, as shown in figure 3,
Include the following steps：
Step 1, power system operating mode and flow data, the electricity needed for stable judgement are obtained by stable online management system
Current voltage, active reactive Power Flow Information, determine the operation object of simulation system；
Step 2, by stability Calculation interpretation of result, damp transfer scheme database is built；By the data check of early period, receive
Collection and regional power grid stability Calculation are as a result, structure power grid stability control strategy expert system database；
Step 3, accident simulation is carried out to critical circuits or equipment by accident simulation system, according to power flow transfer database
Flow data after calculating accident analyzes accident impact and risk size；Accident analog result is shown in system in graphical form
On interface, heavy duty and overload circuit indicate its flow data with yellow and red numerical respectively；
Step 4, stability control strategy expert system database is called according to result of calculation, is then transmitted to accident analog result
Safety on line nucleus correcting system carries out Security Checking, analyzes whether existing stability control strategy needs to change.
It is application subsystem of the framework on Unified Supporting Platform that power grid accident, which envisions simulation system, static steady by acquiring
The basic data of setting analysis, transient stability analysis, dynamic stability analysis, Voltage Stability Analysis completes information filing, statistics is looked into
The functions such as inquiry, intellectual analysis；Control centre is realized in normal epoch, power grid critical circuits progress operation monitoring, accident are simulated,
The result of the action analysis, result communication, accurate stability control strategy is provided for management and running personnel and other professionals.
Prediction failure simulation system needs to send result to safety on line nucleus correcting system after simulating accident, online to pacify
Whether the handling result that full nucleus correcting system carries out Load flow calculation check simulation system is reliable, finally gives optimal stability control strategy.
Prediction failure simulation system has the function of electric network swim analysis and given accident treatment strategy.From safety and stability control
After power flow transfer is obtained in the data that device processed uploads than result of calculation, calculated for simulated failure situation, it can be direct
Show that the circuit overloaded under the malfunction and overload degree are obtained easily to analyze region or Partial Load Flow
Accident treatment strategy.Once the hazard model imagined in prediction scheme occurs, people can according to set operation sequence and hints on operation,
Fast reaction, emergency processing, to achieve the purpose that reduce causality loss or avoid accident
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of power grid accident envisions simulation system, which is realized based on D5000 platforms, which is characterized in that including：Power grid thing
Therefore anticipation analog subsystem, stable online management subsystem, safety on line check subsystem, power flow transfer scheme database and steady
The tactful expert system database of control；
The power grid accident envisions analog subsystem, for passing through stable online management system power system operating mode and trend number
According to voltage and current, active reactive Power Flow Information needed for stable judgement determine the operation object of simulation system；For to key
Circuit or equipment carry out accident simulation；
The power flow transfer scheme database, is established by stability Calculation interpretation of result, for storing power flow transfer scheme；
The stability control strategy expert system database passes through the data check of early period, collection and regional power grid stability Calculation knot
Fruit is established, for storing known stability control strategy；
The safety on line checks the accident analog result progress that subsystem is used to envision the power grid accident analog subsystem
Security Checking, analyzes whether existing stability control strategy needs to change.
2. a kind of power grid accident envisions simulation system according to claim 1, which is characterized in that the power grid accident envisions mould
Quasi- subsystem is also networked with EMS dispatch automated systems, the real time data for receiving EMS, to power grid forecast accident into action
State safety analysis determines security and stability control strategy.
3. a kind of power grid accident envisions simulation system according to claim 2, which is characterized in that the power grid accident envisions mould
Quasi- subsystem includes that stable information collects detection module, fault simulation analysis module, intelligent decision module, result transmission check mould
Block；
The stable information is collected detection module and is used for so that current network is presented to user with the formal intuition of statistical graph
Real-time operating conditions and Power Flow Information；
The fault simulation analysis module is determined for analysis according to demand needs regional power grid circuit or facility information to be simulated,
Carry out accident simulation, power flow solutions and accident impact range after intellectual analysis accident, distinguishes risk size；
The intelligent decision module is used for after analyzing simulated accident, selects to correspond in stability control strategy expert database
Policy Table under the method for operation provides the stability control strategy of simulated accident according to power flow transfer result of calculation；
The result transmission checks module and is used to transmit the flow data and stability control strategy that analysis is calculated, by simulation system
Safety on line nucleus correcting system is transmitted to when fructufy, after practical Load flow calculation, whether appropriate, otherwise if checking the stability control strategy
It is proposed that new steady control is suggested.
4. a kind of power grid accident envisions simulation system according to claim 1, which is characterized in that stable online management
System includes multiple regions stabilizing control system；
The area stability control system refers to being mounted on two and two to solve the stable problem in a regional power grid
The safety and stability control device of the above plant stand, the system for the composition that links together through information channel and Communications Interface Unit, packet
It includes：One main website and multiple substations, the main website and substation are connected with multiple terminal stations through information channel and communication interface.
5. a kind of power grid accident envisions simulation system according to claim 4, which is characterized in that
The main website is arranged in the power plant in load-center substation or with load-center substation same position, the fortune for summarizing each station
Row work information carries out state estimation to regional power grid, identifies the method for operation of regional power grid, to regional power grid by given
Contingency set carries out dynamic security estimation, online to form security and stability control Policy Table or install what off-line calculation obtained in advance
Control scheme list, and each substation will be transmitted in relation to method of operation information and control scheme list；For receive main website and
When outlet is broken down, according to control scheme list, sends out control command to main website and each substation and simultaneously ordered control by each station
Order is transmitted to terminal station；
The substation is installed in more important substation or the power plant being connected with substation, is run for acquisition substation operating mode
Information, and send main website to；For when receiving our station and our station outlet is broken down, according to the control strategy in substation
Table sends out control command to main website and each substation and control command is transmitted to terminal station by each station simultaneously；
The terminal station is used to receive the control command that each station transmission comes, and execution controls on the spot, and control result information is transmitted
It stands to higher level.
6. a kind of power grid accident envisions simulation system according to claim 1, which is characterized in that the power flow transfer scheme number
According to library and stability control strategy expert system database when creating, it then follows following principle：
(1) specification is named
All library name, table name, domain name follow unified naming rule, and carry out necessary explanation, to facilitate design, safeguard, look into
It askes；
(2) reference of control field
In design, database design management tool appropriate is selected, it is small with the Distributed Design and data that facilitate developer
The concentration audit management of group；It can directly be quoted using unified naming rule if the field of design has existed；Otherwise, it answers
It redesigns；
(3) library table Repetitive controller
In the design process, if it find that most of field is all existing, it should suspect whether designed library table is existing；Pass through
Inquiry to library table where field and respective design personnel, confirms whether library table repeats really；
(4) con current control
Con current control should be carried out in design, i.e., for the same library table, have control in same time one-man, other people
It can only be inquired.
7. a kind of power grid accident envisions analogy method, which is characterized in that include the following steps：
Step 1, power system operating mode and flow data are obtained by stable online management system, the voltage electricity needed for stable judgement
Stream, active reactive Power Flow Information, determine the operation object of simulation system；
Step 2, by stability Calculation interpretation of result, damp transfer scheme database is built；By the data check of early period, collect and
Regional power grid stability Calculation is as a result, structure power grid stability control strategy expert system database；
Step 3, accident simulation is carried out to critical circuits or equipment by accident simulation system, is calculated according to power flow transfer database
Flow data after accident analyzes accident impact and risk size；Accident analog result is shown in system interface in graphical form
On, heavy duty and overload circuit indicate its flow data with yellow and red numerical respectively；
Step 4, stability control strategy expert system database is called according to result of calculation, is then transmitted to accident analog result online
Security Checking system carries out Security Checking, analyzes whether existing stability control strategy needs to change.
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| CN201810453951.2A CN108539740B (en) | 2018-05-14 | 2018-05-14 | Power grid accident forecast simulation system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810453951.2A CN108539740B (en) | 2018-05-14 | 2018-05-14 | Power grid accident forecast simulation system and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672171A (en) * | 2018-12-06 | 2019-04-23 | 国网天津市电力公司 | Eliminate the Automatic Control Strategy of 500kV transformer overload |
| CN110890755A (en) * | 2019-12-17 | 2020-03-17 | 国电南瑞科技股份有限公司 | Fault disposal plan online checking and intelligent compiling method and system |
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| CN105244865A (en) * | 2015-07-21 | 2016-01-13 | 河南行知专利服务有限公司 | Power system safe and stable operation control method |
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- 2018-05-14 CN CN201810453951.2A patent/CN108539740B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105244865A (en) * | 2015-07-21 | 2016-01-13 | 河南行知专利服务有限公司 | Power system safe and stable operation control method |
Non-Patent Citations (1)
| Title |
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| 江千军等: "基于D5000***的电网事故预案推演***设计", 《上海电力学院学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672171A (en) * | 2018-12-06 | 2019-04-23 | 国网天津市电力公司 | Eliminate the Automatic Control Strategy of 500kV transformer overload |
| CN110890755A (en) * | 2019-12-17 | 2020-03-17 | 国电南瑞科技股份有限公司 | Fault disposal plan online checking and intelligent compiling method and system |
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| Publication number | Publication date |
|---|---|
| CN108539740B (en) | 2020-06-23 |
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