CN108346358A - A kind of system protection experimental provision and method based on multi-source information redundancy testing - Google Patents
A kind of system protection experimental provision and method based on multi-source information redundancy testing Download PDFInfo
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Abstract
The invention discloses a kind of system protection experimental provisions and method based on multi-source information redundancy testing, it is communicated to connect by multi-source information Redundant Test System and more experimental systems, it ensure that the acquisition of system protection multi-source experimental data, according to experimental data redundancy properties, experimental data is cleaned, and automatically analyze the inconsistent reason of experimental data, it is acted by system protection, the reading of information related specifications, system protection experimental data is automatically analyzed, to system protection action logic, trueness error, information system is analyzed, automatic presentment system protects test result；It ensure that the quick analyzing processing of system protection experimental data, improve system protection conventional efficient, safeguards system Protection is smoothed out, and supports bulk power grid safe and stable operation.
Description
Technical field
The present invention relates to a kind of system protection experimental provisions and method based on multi-source information redundancy testing, belong to power train
System and its automatic field.
Background technology
Extra-high voltage grid is built the transitional period, and power grid " tetanic weak friendship " feature protrudes, and the new-energy grid-connecteds such as wind-powered electricity generation and photovoltaic hold
Sustainable growth, power grid pattern and the great change of power supply architecture are measured, operation of power networks characteristic occurs profound change, embodies a concentrated reflection of three
Aspect.It is that basic change occurs for electric network fault form first, power grid fragility increases；Secondly profound change occurs for power supply architecture,
Power grid regulating power degradation；It is that power electronics feature highlights again, stabilization of power grids form is more complicated.Therefore, it is based on
Means of identification, defence theory, the control technology of conventional AC system formation have lagged behind extra-high voltage alternating current-direct current operation of power networks practice,
It ensures that the Control Technology of the power grid security feature new with operation of power networks is incompatible, needs to run control to modern power systems
Theory is examined closely again, reconstructs bulk power grid safety comprehensive defense system, ensures electric power netting safe running.To ensure transitional period big electricity
Net safety, there is an urgent need to open one's minds, it is comprehensive safely to build bulk power grid for research high reliability, the protection control technology of high security
Defense system is closed, i.e., " system protection ".
Compared with traditional Stability Control System, for system protection to Multiple Time Scales policy co-ordination, control structure is multiple
Miscellaneous, control range is wide, control measure amount is big, bears the support mission of bulk power grid safe and stable operation.Therefore, extra-high voltage grid
High speed development transitional period, power grid characteristic occur important change, are greatly reinforced to the dependence of stabilized control system.Extra-high voltage alternating current-direct current electricity
Net dynamic characteristic is complicated, and system protection Control system architecture, strategy are complicated, and experimental verification verifies work difficulty with control strategy
Greatly.Therefore, it is necessary to use kinds of experiments verification means, the system of the diversified forms such as complicated, chain, secondary failure superposition of foundation
The more complicated Run-time scenarios of protection, study system protection each section module and module reciprocal effect characteristic it is functional to system protection and
Reliability effect carries out experimental verification to system protection function policy, Performance And Reliability etc..
In system protection experimentation, lot of experimental data is generated.These experimental data structures differ, data communication delay
Difference is monitored and records to system protection experimentation in all its bearings, forms mass of redundancy data in verification process.System
Uniting, the experimental data that Protection generates is huge, and traditional artificial data analysis is less efficient.Therefore, it is tested to meet system protection
Verification requires, and reduces redundancy testing comparing, verification workload, and fundamentally lifting system Protection data analysis is imitated
Rate reduces system protection experimental verification workload, need to propose a kind of system protection experiment based on multi-source information redundancy testing
Device and method.
Invention content
In order to solve the above technical problem, the present invention provides a kind of, and the system protection based on multi-source information redundancy testing is real
Experiment device and method.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of system protection experimental provision based on multi-source information redundancy testing, including multi-source information Redundant Test System,
System protection controls test system, fault characteristic real-time emulation system, on-line monitoring and analysis system and laboratory auxiliary system
System；
System protection controls test system：It establishes system protection and is tested test system, and its communication conditions is simulated；
Fault characteristic real-time emulation system：Bulk power grid operation and fault characteristic are emulated, realize system protection operation
Experiment scene is simulated；
On-line monitoring and analysis system：Complete on-line monitoring and the analysis of system protection；
Laboratory auxiliary system：Complete the monitoring and control of entire experimental provision；
Multi-source information Redundant Test System：Receive system protection control test system, fault characteristic real-time emulation system,
The experimental data that line monitors and analysis system and laboratory auxiliary system upload, carries out it according to experimental data redundancy properties
Analyzing processing eventually forms system protection test report.
It includes system protection control system and system protection communication system that system protection, which controls test system,；System protection control
System processed：It establishes system protection and is tested test system；System protection communication system：Tested system communication situation is simulated；
During the experiment, the experimental data that system protection control system and system protection communication system generate on send to multi-source information
Redundant Test System；The experimental data sent in system protection control system includes system protection fault recorder data, system protection
Action data and system protection event data；The experimental data sent in system protection communication system includes system protection communication fortune
Row situation and system protection communication failure information.
Fault characteristic real-time emulation system includes real time data display, during the experiment, real-timedigital simulation system
It is sent to multi-source information Redundant Test System in the experimental data generated of uniting, the experimental data sent on real time data display includes
Operation of power networks data, primary equipment status data and system protection access action data.
Laboratory auxiliary system includes Laboratories instrument group, fault recording system and laboratory central control system；Laboratory
Tester group：Actively system protection action situation in experimentation is monitored by test equipment；Fault recording system pair
Fault condition carries out data recording in experimentation；Laboratory central control system controls entire experimental provision；
The behaviour of the detection data of Laboratories instrument group, the recorder data of fault recording system and laboratory central control system
Make data on send to multi-source information Redundant Test System.
On-line monitoring and analysis system include that external disaster is with management with environmental modeling system and cutting load system monitoring
System；External disaster and environmental modeling system obtain external disaster and environmental data, to disaster and environment to effect on power system into
Row analysis modeling, and the influence to electric system is calculated, then system protection applicability and reliability are verified；Cutting load
System monitoring with management system to be monitored to the accurate cutting load function of system protection, and then to system protection functionality and
Reliable letter is verified.
All systems access synchronised clock, meet experimental data and synchronize requirement.
A kind of system protection experimental method based on multi-source information redundancy testing, includes the following steps,
Obtain experimental data；
Processing is analyzed it according to experimental data redundancy properties；
Obtain the code requirement of system protection action and information；
System protection motion analysis；
Form system protection test report.
The process that processing is analyzed it according to experimental data redundancy properties is,
Step 11, experimental data synchronization process；
Step 12, whether judgment experiment data perfect, if perfect, go to step 13, if not perfect, analyse whether be
Communication failure if it is reacquires experimental data after equal communication recoveries, if not communication failure, then to system protection event
Barrier is analyzed, and step 13 is gone to；
Step 13, carrying out divided stages according to the action of system protection will be same according to the synchronous time mark of each experimental data
The experimental data in stage summarizes；
Step 14, judge whether the experimental data of same stage is consistent, if inconsistent go to step 15, if unanimously,
It is compared with corresponding anticipation process data, if it is inconsistent, step 16 is gone to, if unanimously, going to step 17；
Step 15, it is subject to physical fault recorded broadcast data, screens inconsistent experimental data, and judge its source；
Step 16, system protection accident analysis is carried out；
Step 17, after the completion of the experimental data in all stages judges, combination system far obtains system protection
Action report.
The process of system protection motion analysis is,
Step 21, system protection action report is read；Read anticipation process data；Read system protection action and information
Code requirement；Read the stage divided；
Step 22, system protection action is analyzed, judges whether satisfaction action and information norm requirement, if discontented
Foot, then carry out system protection action failure analysis, if it is satisfied, then carrying out system protection motion analysis；
Step 23, after the completion of the system protection motion analysis in all stages, test report is generated.
The advantageous effect that the present invention is reached：Multi-source information Redundant Test System of the present invention and more experimental system communication links
It connects, ensure that the acquisition of system protection multi-source experimental data, according to experimental data redundancy properties, experimental data is cleaned,
And the inconsistent reason of experimental data is automatically analyzed, by system protection action, the reading of information related specifications, to system protection
Experimental data is automatically analyzed, and is analyzed system protection action logic, trueness error, information system, is provided automatically and is
Blanket insurance protects test result；It ensure that the quick analyzing processing of system protection experimental data, improve system protection conventional efficient, ensure
System protection experiment is smoothed out, and supports bulk power grid safe and stable operation.
Description of the drawings
Fig. 1 is the structure diagram of apparatus of the present invention；
Fig. 2 is the flow diagram of the method for the present invention；
Fig. 3 is the flow chart of analysis of experimental data processing；
Fig. 4 is system protection motion analysis flow chart.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of system protection experimental provision based on multi-source information redundancy testing, it is characterised in that：Including
Multi-source information Redundant Test System, system protection control test system, fault characteristic real-time emulation system, on-line monitoring and analysis
System and laboratory auxiliary system.
System protection controls test system：It establishes system protection and is tested test system, and its communication conditions is simulated.System
Blanket insurance shield control test system includes system protection control system and system protection communication system；System protection control system to
It establishes system protection and is tested test system；System protection communication system is simulating tested system communication situation.
During the experiment, the experimental data that system protection control system and system protection communication system generate on send to
Multi-source information Redundant Test System.The experimental data sent in system protection control system include system protection fault recorder data,
System protection action data and system protection event data；Wherein, system protection fault recorder data is COMTRADE recordings
Formatted file (meets 22386 related requests of GB/T), and the power grid Temporal Data of record, action data etc. are system protections in electricity
Under net fault condition, the master data of control system action situation analysis.The experimental data packet sent in system protection communication system
Include system protection communication operation conditions and system protection communication failure information.
Fault characteristic real-time emulation system：Bulk power grid operation and fault characteristic are emulated, realize system protection operation
Experiment scene is simulated.Fault characteristic real-time emulation system includes real time data display, and during the experiment, real-time digital is imitative
It is sent in the experimental data that true system generates to multi-source information Redundant Test System, the experimental data sent on real time data display
Action data is accessed including operation of power networks data, primary equipment status data and system protection；Wherein, operation of power networks data packet
Include the operations of power networks data such as voltage, electric current；Primary equipment data include position of the switch displacement data, load tap changer adjustment number
Data are adjusted according to contributing with generating set.
On-line monitoring and analysis system：Complete on-line monitoring and the analysis of system protection；The system mainly passes through information
Communication conditions and the information content are monitored and analyzed system protection, are passive a monitoring and analysis.On-line monitoring and
Analysis system includes external disaster and environmental modeling system and cutting load system monitoring and management system；External disaster is built with environment
Modular system obtains external disaster and environmental data, and analysis modeling, and calculating pair are carried out to effect on power system to disaster and environment
The influence of electric system then verifies system protection applicability and reliability；Cutting load system monitoring and management system
To be monitored to the accurate cutting load function of system protection, and then system protection functionality and reliable letter are verified.
Laboratory auxiliary system：Complete the monitoring and control of entire experimental provision.Laboratory auxiliary system includes laboratory
Tester group, fault recording system and laboratory central control system；Laboratories instrument group：It is referred to as the multiple testers in laboratory,
Including conventional tester, digital test instrument, PMU testers etc., realize and carry out actively test and monitoring to system protection；Failure
Recording system carries out data recording to fault condition in experimentation, and (opening for data record can be flexibly arranged in failure wave-recording here
Flowing mode starts the parameters such as time and recording time, and access data volume is big, and the failure logging in a wide range of may be implemented；And it is
The failure wave-recording of Protection control system of uniting is the recording function of its own, and failure wave-recording mode is fixed, recording device data on the spot,
It is mainly used for Unit Level analysis of operative action, the two fault record data may overlap, and use purpose difference)；Laboratory
Central control system controls entire experimental provision.The detection data of Laboratories instrument group, the recording number of fault recording system
According to this and the operation data of laboratory central control system on send to multi-source information Redundant Test System.
Multi-source information Redundant Test System：Receive system protection control test system, fault characteristic real-time emulation system,
The experimental data that line monitors and analysis system and laboratory auxiliary system upload, carries out it according to experimental data redundancy properties
Analyzing processing eventually forms system protection test report.
Above-mentioned all systems access synchronised clock, meet experimental data and synchronize requirement.
As shown in Fig. 2, a kind of system protection experimental method based on multi-source information redundancy testing, includes the following steps：
Step 1, experimental data, i.e., the experimental data sent in above-mentioned all systems are obtained.
Step 2, processing is analyzed it according to experimental data redundancy properties.
Detailed process is as shown in Figure 3：
Step 11, experimental data synchronization process；
Experimental data is obtained from multiple systems, is multi-source data, and data structure, data communication delay are different, therefore, need
Processing is synchronized according to each data source markers, ensure the correctness of data time sequence.Experimental data can be divided into analog quantity and
Switching value is handled respectively.The same action process of system protection may have redundant data characteristic by multiple system acquisitions；
Step 12, whether judgment experiment data perfect, if perfect, go to step 13, if not perfect, analyse whether be
Communication failure if it is reacquires experimental data after equal communication recoveries, if not communication failure, then to system protection event
Barrier is analyzed, and step 13 is gone to；
Step 13, carrying out divided stages according to the action of system protection will be same according to the synchronous time mark of each experimental data
The experimental data in stage summarizes；
Step 14, judge whether the experimental data of same stage is consistent, if inconsistent go to step 15, if unanimously,
It is compared with corresponding anticipation process data, if it is inconsistent, step 16 is gone to, if unanimously, going to step 17；
Such as the protection of fault recording system recorder data display system is not operating, and system protection control system action report
Display system protection acts, and experimental data is inconsistent at this time.
Step 15, it is subject to physical fault recorded broadcast data, screens inconsistent experimental data, and judge its source；
Step 16, system protection accident analysis is carried out；
Such as system protection control system action report data are inconsistent, it is system protection control to obtain inconsistent data source
System processed, carries out system protection accident analysis, and conclusion is that system protection control system information reports mistake；
Step 17, after the completion of the experimental data in all stages judges, combination system far obtains system protection
Action report.
Step 3, the code requirement of system protection action and information is obtained.
System protection acts and information norm, including two parts, when system protection action norm, second is that system protection is believed
Cease code requirement.System protection action norm includes system protection action logic, definite value specification, definite value requirement, error requirements etc.；
Information norm includes system protection action report specification, event reporting obligations, send specification etc. in information.
System protection time error calculation is：
Wherein, Δ t is time error as a result, N is experiment number, TiWhen to test the experiment action under current definite value
Between, i ∈ [1, N] and be integer, TsetFor time definite value setting value.
System protection definite value error calculation mode is calculated as：
Wherein, D tests for action message, and N1 is reliable experiment of being failure to actuate, pfiAnd pfjReality to meet certain requirements is moved
Work value, FsetFor definite value setting value, Δ fLStart definite value action error result calculation, Δ f for the amount of owingHStart definite value to be excessive
Action error calculation.
Step 4, system protection motion analysis.
Detailed process is as shown in Figure 4：
Step 21, system protection action report is read；Read anticipation process data；Read system protection action and information
Code requirement；Read the stage divided；
Step 22, system protection action is analyzed, judges whether satisfaction action and information norm requirement, if discontented
Foot, then carry out system protection action failure analysis, if it is satisfied, then carrying out system protection motion analysis；
Step 23, after the completion of the system protection motion analysis in all stages, test report is generated.
Step 5, system protection test report is formed.
System protection test result includes two parts：First, system protection action situation consistency is as a result, second is that system is protected
Protect action situation analysis result.
System protection action situation consistency result is whether system protection redundancy testing result is consistent, system protection experiment
Whether data are consistent, if system protection experimental data is inconsistent, then it represents that system protection is there are failure, and analysis system
Fault condition is protected, obtains corresponding conclusion.Such as system protection action recorder data and information data it is inconsistent, then system protection
There are failures for information system.
System protection action situation analysis result is system protection action logic, performance etc. analysis result, including is
Whether action logic meets the requirements blanket insurance shield, whether system protection definite value trueness error meets the requirements, system protection information system
It displays whether to meet the requirements, send whether data meet the requirements on system protection.
Multi-source information Redundant Test System of the present invention is communicated to connect with more experimental systems, ensure that system protection multi-source is tested
The acquisition of data cleans experimental data according to experimental data redundancy properties, and it is inconsistent to automatically analyze experimental data
Reason automatically analyzes system protection experimental data, by system protection action, the reading of information related specifications to being
Blanket insurance shield action logic, trueness error, information system are analyzed, and automatic presentment system protects test result；It ensure that system
The quick analyzing processing of Protection data improves system protection conventional efficient, and safeguards system Protection is smoothed out, and supports
Bulk power grid safe and stable operation.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of system protection experimental provision based on multi-source information redundancy testing, it is characterised in that：Including multi-source information redundancy
Test system, system protection control test system, fault characteristic real-time emulation system, on-line monitoring and analysis system and experiment
Room auxiliary system；
System protection controls test system：It establishes system protection and is tested test system, and its communication conditions is simulated；
Fault characteristic real-time emulation system：Bulk power grid operation and fault characteristic are emulated, realize system protection running experiment
Scenario simulation；
On-line monitoring and analysis system：Complete on-line monitoring and the analysis of system protection；
Laboratory auxiliary system：Complete the monitoring and control of entire experimental provision；
Multi-source information Redundant Test System：Receive system protection control test system, fault characteristic real-time emulation system, online prison
The experimental data uploaded with analysis system and laboratory auxiliary system is surveyed, is analyzed it according to experimental data redundancy properties
Processing, eventually forms system protection test report.
2. a kind of system protection experimental provision based on multi-source information redundancy testing according to claim 1, feature exist
In：It includes system protection control system and system protection communication system that system protection, which controls test system,；System protection control system
System：It establishes system protection and is tested test system；System protection communication system：Tested system communication situation is simulated；
During the experiment, the experimental data that system protection control system and system protection communication system generate on send to multi-source
Information redundancy tests system；The experimental data sent in system protection control system includes system protection fault recorder data, system
Protection act data and system protection event data；The experimental data sent in system protection communication system includes that system protection is logical
Believe operation conditions and system protection communication failure information.
3. a kind of system protection experimental provision based on multi-source information redundancy testing according to claim 1, feature exist
In：Fault characteristic real-time emulation system includes real time data display, and during the experiment, real time data display generates
Experimental data on send to multi-source information Redundant Test System, the experimental data sent on real time data display includes power grid fortune
Row data, primary equipment status data and system protection access action data.
4. a kind of system protection experimental provision based on multi-source information redundancy testing according to claim 1, feature exist
In：Laboratory auxiliary system includes Laboratories instrument group, fault recording system and laboratory central control system；Laboratories instrument
Group：Actively system protection action situation in experimentation is monitored by test equipment；Fault recording system was to testing
Fault condition carries out data recording in journey；Laboratory central control system controls entire experimental provision；
The operand of the detection data of Laboratories instrument group, the recorder data of fault recording system and laboratory central control system
It is sent to multi-source information Redundant Test System according on.
5. a kind of system protection experimental provision based on multi-source information redundancy testing according to claim 1, feature exist
In：On-line monitoring and analysis system include external disaster and environmental modeling system and cutting load system monitoring and management system；Outside
Portion's disaster obtains external disaster and environmental data with environmental modeling system, is analyzed effect on power system with environment disaster
Modeling, and the influence to electric system is calculated, then system protection applicability and reliability are verified；Cutting load system is supervised
Depending on management system to be monitored to the accurate cutting load function of system protection, and then to system protection functionality and reliable letter
It is verified.
6. a kind of system protection experimental provision based on multi-source information redundancy testing according to claim 1, feature exist
In：All systems access synchronised clock, meet experimental data and synchronize requirement.
7. a kind of system protection experimental method based on multi-source information redundancy testing, it is characterised in that：Include the following steps,
Obtain experimental data；
Processing is analyzed it according to experimental data redundancy properties；
Obtain the code requirement of system protection action and information；
System protection motion analysis；
Form system protection test report.
8. a kind of system protection experimental method based on multi-source information redundancy testing according to claim 7, feature exist
In：The process that processing is analyzed it according to experimental data redundancy properties is,
Step 11, experimental data synchronization process；
Step 12, whether judgment experiment data are perfect, if perfect, go to step 13, if not perfect, analyse whether to be communication
Failure if it is reacquires experimental data after equal communication recoveries, if not communication failure, then to system protection failure into
Row analysis, goes to step 13；
Step 13, divided stages are carried out according to the action of system protection, according to the synchronous time mark of each experimental data, by same stage
Experimental data summarize；
Step 14, judge whether the experimental data of same stage is consistent, if inconsistent go to step 15, if unanimously, and it is right
The anticipation process data answered is compared, if it is inconsistent, step 16 is gone to, if unanimously, going to step 17；
Step 15, it is subject to physical fault recorded broadcast data, screens inconsistent experimental data, and judge its source；
Step 16, system protection accident analysis is carried out；
Step 17, after the completion of the experimental data in all stages judges, combination system far obtains system protection action
Report.
9. a kind of system protection experimental method based on multi-source information redundancy testing according to claim 8, feature exist
In：The process of system protection motion analysis is,
Step 21, system protection action report is read；Read anticipation process data；Read the specification of system protection action and information
It is required that；Read the stage divided；
Step 22, system protection action is analyzed, judges whether satisfaction action and information norm requirement, if conditions are not met,
System protection action failure analysis is then carried out, if it is satisfied, then carrying out system protection motion analysis；
Step 23, after the completion of the system protection motion analysis in all stages, test report is generated.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285464A (en) * | 2020-10-13 | 2021-01-29 | 国网安徽省电力有限公司 | Power grid fault diagnosis method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203909606U (en) * | 2013-12-10 | 2014-10-29 | 国家电网公司 | Test system for distribution automation system |
| CN105093033A (en) * | 2015-09-01 | 2015-11-25 | 华中电网有限公司 | Power grid multi-source information-based fault integrated analysis system and analysis method |
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- 2017-12-22 CN CN201711401054.9A patent/CN108346358A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203909606U (en) * | 2013-12-10 | 2014-10-29 | 国家电网公司 | Test system for distribution automation system |
| CN105093033A (en) * | 2015-09-01 | 2015-11-25 | 华中电网有限公司 | Power grid multi-source information-based fault integrated analysis system and analysis method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285464A (en) * | 2020-10-13 | 2021-01-29 | 国网安徽省电力有限公司 | Power grid fault diagnosis method and system |
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