CN106452945A - Network-based nuclear power plant event significance determining and evaluating method and system - Google Patents
Network-based nuclear power plant event significance determining and evaluating method and system Download PDFInfo
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- CN106452945A CN106452945A CN201610829035.5A CN201610829035A CN106452945A CN 106452945 A CN106452945 A CN 106452945A CN 201610829035 A CN201610829035 A CN 201610829035A CN 106452945 A CN106452945 A CN 106452945A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/06—Generation of reports
- H04L43/062—Generation of reports related to network traffic
Abstract
The present invention belongs to the technical field of nuclear power plant security, and relates to a network-based nuclear power plant event significance determining and evaluating method and system. The evaluating method comprises three phases: description of features of a discovered security event and preliminary screening, calculation of risk significance of a security event with a potential high risk, and detailed risk significance evaluation. The system comprises three modules: an event entry module, an event analysis module, and an event output module. Through adoption of the network-based nuclear power plant event significance determining and evaluating method and system, omission and errors are greatly reduced compared with these of a manual approach, a final report is convenient to check, trace back, share and maintain in following steps, repeated work is reduced and less resource is wasted, and available information can be easily offered for the existing system of the nuclear power plant.
Description
Technical field
The present invention generally relates to nuclear power plant's event severity level and determines evaluation methodology and system.
Background technology
Importance degree determines that program (Significance Determination Process, abbreviation SDP) is to evaluate nuclear power
A kind of method of safety event risk importance degree in factory's phase in full longevity.Risk importance degree refers to performance indications or safety event institute's generation
Core damage frequency increment Delta CDF of table.SDP employs one group of colour code to portray the risk of performance indications and safety event
Importance degree, i.e. the size degree of risk.This group colour code is made up of green, white, yellow and red 4 kinds of colors, representative
Risk importance degree is from low to high.
This program both ensure that the objectivity and accuracy that process of supervision evaluates for safety event, also improves prison simultaneously
Tube efficiency, decreases the supervision burden of regulatory authority and nuclear power owner, is conducive to nuclear power plant's management perfection action.As PSA skill
The important application instrument of art, realizes this program on nuclear power plant's existing network technology platform base and can realize easily and fast
Importance degree evaluation to npp safety item, facilitates full factory employee to understand relevant information in time simultaneously, for raising power plant core
Safety culture and management level have positive role and significance.
Nuclear power plant, when implementing SDP program, is to be completed in the way of artificial at present, including：Fill up a form manually, count manually
Calculate and statistical series value, manual calculations color grade etc..Such mode there is a problem of as follows：Implement to need during SDP analysis
Especially careful, especially to sequence of events will Inspection and analysis one by one, be susceptible to omit or mistake；Formed Final Report be
The mode of traditional manuscript, is not easy to check, recalls, shares and follow-up maintenance；Lack interface with nuclear power plant existed system, make
Become repeated work and the wasting of resources, be also not easy to provide spendable information for nuclear power plant's existed system.
Content of the invention
The primary and foremost purpose of the present invention provides a kind of network nuclear power plant event severity level to determine evaluation methodology, to overcome
Current manual type evaluation is susceptible to omit or mistake；The Final Report being formed is the mode of traditional manuscript, is not easy to look into
See, recall, sharing and follow-up maintenance；Cause repeated work and the wasting of resources, be not easy to provide for nuclear power plant's existed system
The defect of spendable information.
For realizing this purpose, the present invention provides a kind of network nuclear power plant event severity level to determine evaluation methodology, its
Including the following three stage：
1) feature description of the safety event finding and preliminary screening：The safety event distinguishing discovery is to npp safety work(
The impact of energy, assesses its importance, and determines whether safety event screens out using this stage service manual, if can not screen out, enter
Enter the following stage 2)；
2) it is the important safety event calculation risk importance degree of potential risk：If evaluation result is non-green, need
Carry out the stage 3) detailed assessment；
3) carry out detailed Risk importance assessment.
Preferably, stage 1) in preliminary screening be made up of 3 lists, respectively safety event information list, degrade
Safe foundation stone and function list, origination event alleviate system and barrier foundation stone screening list.
Preferably, stage 2) in calculation risk importance degree adopt SDP model.
Preferably, stage 2) in calculation risk importance degree process include select origination event scene, determine origination event
Probability, the risk importance degree determining remaining relief capabilities, estimating safety event.
Preferably, stage 3) in detailed Risk importance assessment adopt PSA model.
Second object of the present invention is to provide the network system realizing preceding method, and it is made up of such as lower module：
Event typing module：For being input to nuclear power plant's event in network system, form network system events
Storehouse；
Event analysis module：The event that this module inputs for event typing module is analyzed processing, including the stage 1),
2) various events, 3)；
Event output module：This module is used for the result output of event analysis module analysis is presented.
Preferably, described network system is SDP network system, and described event typing module is SDP event typing mould
Block, described event analysis module is SDP analysis module, and described event output module is SDP output module.
Preferably, the nuclear power plant's event described in event typing module includes automatic acquisition from state report
Event and the event manually entering.
Preferably, the stage 2 in event analysis module) event analyzing and processing include select origination event classification, originate
The relatedness of event and system, sequence of events worksheet and counting rule table.
Preferably, the analysis result of event output module is shown in different colors, and can be output as individual event
Analysis report and the general analysis report of certain time period.
Brief description
Fig. 1 is SDP implementing procedure figure.
Fig. 2 is SDP online edition software workflow figure.
Fig. 3 is SDP online edition software logic block diagram.
Fig. 4 is SDP online edition software operation handling process.
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated.
1) SDP implementing procedure
The implementing procedure of SDP is shown in Fig. 1, typically can be divided into three phases：
1st stage：The feature description of safety event finding and preliminary screening.Distinguish that the safety event of discovery is pacified to power plant
Full Featured impact, assesses its importance.First stage screens, and is made up of 3 lists：Safety event information list, degrade
Safe foundation stone and function list, origination event alleviate system and barrier foundation stone screening list.Determined using the 1st stage service manual
Whether safety event screens out, if can not screen out, enters for the 2nd stage.
2nd stage：The use of SDP model is the important safety event calculation risk importance degree of potential risk, including：Select to begin
Send out event scene, determine origination event probability, the risk importance degree determining remaining relief capabilities, estimating safety event.If
Evaluation result is non-green, then need to carry out the detailed assessment in the 3rd stage.
3rd stage：Carry out detailed Risk importance assessment using PSA model.This stage belongs to completely PSA method,
The evaluation result that may be given in the 1st and the 2nd stage of change.
2) online edition SDP functional framework
Online edition SDP work platformses (or referred to as SDP software), based on SDP computing module, system are inputted and defeated
Go out as the interface with other Database Systems or management personnel, nuclear power plant user is managed by network entry, data is defeated
Enter, calculate analysis, result is checked and generated the system of report.Online edition SDP system can by analysis result and appraisal report and
When quickly move through network and present to user.
Function definition based on SDP implementing procedure with to online edition SDP, the functional framework of online edition SDP instrument arranges such as
Shown in Fig. 2.Including first stage screening operation table, second stage analysis correlation model and worksheet, result the function such as assume.
3) online edition SDP system composition
According to the function definition of online edition SDP, online edition SDP is made up of such as lower module, as shown in Figure 3.
Event typing module：This module is used for nuclear power plant's event being input in SDP system, including from state report
Automatically the event obtaining in announcement and the event manually entering, form the event base of SDP system；
SDP analysis module：This module is analyzed processing according to the analysis process of SDP for the event of input, including the
The preliminary screening in one stage, the relatedness of the classification of selection origination event, origination event and system of second stage, sequence of events work
Tabulation and counting rule table, finally provide analysis result；
SDP output module：This module is used for assuming the analysis result output of SDP, can be given in certain period of time
SDP analysis result, is shown in different colors, and can be output as the analysis report of individual event and overall point of certain time period
Analysis report.
In addition, for the user of nuclear power plant's different role, it is also different for the authority of SDP software operation, therefore
Need to consider the setting of user right in system design process, divide in system output simultaneously and will take into full account power plant user couple
The demand held in key message, appropriate design output interface and output content.
4) online edition SDP working-flow
The workflow of online edition SDP includes：
Import qualified event or be manually entered event from nuclear power plant's existing system, judge that event whether may
There is potential impact to power plant CDF, judge whether safety event can be analyzed by existing probability analyses model；
In the SDP stage 1, fill in list, safety event extremely low for risk importance degree is screened away in advance；
In the SDP stage 2, the use of SDP model is the important safety event calculation risk importance degree of potential risk；
If the risk importance degree result that the SDP stage 2 calculates is green, show that the risk importance degree of safety event is very low,
Nuclear power plant only need to take correct action for business reasons；If the risk importance degree result that the SDP stage 2 calculates exceedes green etc.
Level, then can be considered as PSA model and calculate finer result.
Safety event importance degree determines that the business processing flow of system is as shown in Figure 4.
5) effect
This system can be with the importance degree of Fast Evaluation npp safety item；
This system can easily safeguard npp safety item and its evaluation result；
This system can realize convenient connection the with nuclear power plant's other system, and realizes data in nuclear power plant's network platform
And information sharing；
This system can facilitate the management of power plant safety information, helps power plant's lifting safety.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications to the present invention and modification belong to the model of the claims in the present invention and its equivalent technology
Within enclosing, then the present invention is also intended to comprise these changes and modification.Above-described embodiment or embodiment are to the present invention
Illustration, the present invention can also be implemented with other ad hoc fashions or other particular form, without departing from the present invention's
Main idea or substitutive characteristics.Therefore, it is regarded as illustrative rather than determinate from the point of view of the embodiment of description is in terms of any.This
The scope of invention should be illustrated by appended claims, and any intention with claim and the equivalent change of scope also should comprise
Within the scope of the invention.
Claims (10)
1. a kind of network nuclear power plant event severity level determines evaluation methodology it is characterised in that including the following three stage：
1) feature description of the safety event finding and preliminary screening：The safety event distinguishing discovery is to npp safety function
Impact, assesses its importance, and determines whether safety event screens out using this stage service manual, if can not screen out, under entering
The face stage 2)；
2) it is the important safety event calculation risk importance degree of potential risk：If evaluation result is non-green, need to carry out
Stage 3) detailed assessment；
3) carry out detailed Risk importance assessment.
2. method according to claim 1 it is characterised in that：Stage 1) in preliminary screening be made up of 3 lists, respectively
The safe foundation stone for safety event information list, degrading and function list, origination event alleviate system and barrier foundation stone screening table
Single.
3. method according to claim 1 it is characterised in that：Stage 2) in calculation risk importance degree adopt SDP model.
4. method according to claim 1 it is characterised in that：Stage 2) in calculation risk importance degree process include select
Origination event scene, the risk importance degree determining the remaining relief capabilities of origination event probability, determination, estimating safety event.
5. method according to claim 1 it is characterised in that：Stage 3) in detailed Risk importance assessment adopt PSA
Model.
6. a kind of network system of the method realizing claim 1 is it is characterised in that be made up of such as lower module：
Event typing module：For being input to nuclear power plant's event in network system, form network system events storehouse；
Event analysis module：The event that this module inputs for event typing module be analyzed process, including the stage 1), 2),
3) various events；
Event output module：This module is used for the result output of event analysis module analysis is presented.
7. network system according to claim 6 it is characterised in that：Described network system is SDP network system, described
Event typing module be SDP event typing module, described event analysis module is SDP analysis module, and described event is defeated
Going out module is SDP output module.
8. network system according to claim 6 it is characterised in that：Nuclear power plant described in event typing module occurs
Event includes the event automatically obtaining from state report and the event manually entering.
9. network system according to claim 6 it is characterised in that：Stage 2 in event analysis module) event analysis
Process relatedness, sequence of events worksheet and the counting rule table including selecting origination event classification, origination event and system.
10. network system according to claim 6 it is characterised in that：The analysis result of event output module is with different face
Color is shown, and can be output as the analysis report of individual event and the general analysis report of certain time period.
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| EP1889193B1 (en) * | 2005-05-20 | 2013-02-13 | ZAO "Diakont" | Deterministic-probabilistic safety analysis and evaluation method and system |
| CN105303018A (en) * | 2014-07-10 | 2016-02-03 | 苏州热工研究院有限公司 | Risk assessment method for item of nuclear power plant |
| WO2016018382A1 (en) * | 2014-07-31 | 2016-02-04 | Hewlett-Packard Development Company, L.P. | Creating a security report for a customer network |
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2016
- 2016-09-18 CN CN201610829035.5A patent/CN106452945A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1889193B1 (en) * | 2005-05-20 | 2013-02-13 | ZAO "Diakont" | Deterministic-probabilistic safety analysis and evaluation method and system |
| CN101710400A (en) * | 2009-12-15 | 2010-05-19 | 中科华核电技术研究院有限公司 | Method and device for evaluating risk of nuclear power station |
| CN105303018A (en) * | 2014-07-10 | 2016-02-03 | 苏州热工研究院有限公司 | Risk assessment method for item of nuclear power plant |
| WO2016018382A1 (en) * | 2014-07-31 | 2016-02-04 | Hewlett-Packard Development Company, L.P. | Creating a security report for a customer network |
Non-Patent Citations (1)
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| 陈丽辉等: "核电厂停堆工况下安全事项重要度确定程序研究", 《中国核科学技术进展报告》 * |
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