CN107292490A - Trial operation substation operation risk evaluation system and appraisal procedure - Google Patents
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Abstract
The invention discloses a kind of trial operation substation operation risk evaluation system and appraisal procedure, the monitoring information data of regulation automatization system are associated and docked with production division data, build monitoring information large database concept and form human-computer interaction interface, for reflection electric network fault accident information, reflection equipment abnormal running abnormal information and the important remote measurement amount of reflection are associated analysis beyond the interval information that transfinites of bound, calculate the weighted sum of the risk information number in trial operation stage and calculate operation risk degree and realize standardization risk assessment, obtain overhaul of the equipments and visit program of the assessment result to transport inspection department door and data supporting is provided.It effectively dynamic evaluation trial operation transformer station in the operation risk of trial operation stage different time, can improve the validity and overall O＆M required level of service of O＆M service work.
Description
Technical field
The present invention relates to electric power network technique field, more particularly, to a kind of trial operation substation operation risk evaluation system and comment
Estimate method.
Background technology
Into 21st century, along with economic leap and the development of society, industry and household electricity demand rapidly increase
Long, the scale and the contradiction of need for electricity that China's hair is powered increasingly show that power network scale also enters the stage developed rapidly,
Power grid construction particularly in recent years based on intelligent grid and extra-high voltage grid is even more to welcome new peak, substantial amounts of new technology
Emerged in an endless stream with new results.By taking the power network of Hangzhou as an example, the power transformation capacity of Hangzhou power network broke through 10,000,000 kilovolts in 2000 first
Peace, by 2012, the power transformation capacity of Hangzhou power network breached 50,000,000 kilovolt-amperes, occupied national provincial capital in the range of state's net
City first.In the Fast Construction of power network, can all there is that substantial amounts of transformer station is new, expands, change mega project every year, wherein on the one hand
Be newly-built transformer station with the expansion of Net Frame of Electric Network, spring up like bamboo shoots after a spring rain and typically layout extensively, be on the other hand that a large amount of operations become
Power station is taped the latent power increase-volume by large-scale technological transformation, the increase mode such as main transformer, expands power transformation capacity.According to statistics, Hangzhou power network in 2015 is total to
Newly-built 25, more than 110kV transformer stations, main transformer 48, operation total capacity is more than 5,000,000 kilovolt-amperes.So huge power network has a net increase of
Capacity is produced, and is that the work of the day-to-day operations such as monitoring, scheduling, O＆M, the maintenance of power system adds huge difficulty.In power network
In actual production operation work, transformer station's trial operation stage typically continues 12 months.Due to trial operation, transformer station has particularity,
The factor such as equipment and system operation break-in demand, the level of skill to operation, monitoring work proposes new requirement.In recent years,
Big data technology is widely used in power industry, achieves great successes.In view of a large amount of increasings of trial operation transformer station in recent years
It is many, the big data characteristic based on Centralized Monitoring information, in the urgent need to a kind of new risk evaluation system and the old change normally run
The risk assessment in power station makes a distinction, and formulates with targetedly O＆M, repair schedule are imperative.
The content of the invention
In view of the shortcomings of the prior art, technical problem to be solved is to provide a kind of trial operation substation operation to the present invention
Risk evaluation system and appraisal procedure, it can effective fortune of the dynamic evaluation trial operation transformer station in trial operation stage different time
Sector-style danger, improves the validity and overall O＆M required level of service of O＆M service work.
The present invention is to be addressed above-mentioned technical problem by the following technical programs.
Trial operation substation operation risk evaluation system, the monitoring information data of regulation automatization system are adjusted with comprising at least
Production division's data of degree technology support system and production management system are associated and docked, and build monitoring information large database concept
And formed with inquiry, screening, the multifunctional man-machine interactive interface counted, set for reflection electric network fault accident information, reflection
Standby abnormal running abnormal information and the important remote measurement amount of reflection are associated analysis beyond the interval information that transfinites of bound, obtain
The three category informations data quantified are respectively according to the risk information number in different Risk rated ratio coefficient weighted calculation trial operation stages
Weighted sum and calculate operation risk degree realize standardization risk assessment, obtain assessment result to transport inspection department door overhaul of the equipments
And visit program provides data supporting.
Preferably, building monitoring information large database concept and based on VBA programming realization big datas with MySQL management systems
The Excel man-machine interface interactive functions in storehouse.
Preferably, human-computer interaction interface can at least pass through different time sections, different substation, unlike signal classification, no
Monitoring information is inquired about and screened with keyword.
Preferably, the selection result at least can be according to date, time, zone of responsibility, information category, transformer station, the information content
Subdivision.
Preferably, production division's data include operation account and the defect record of power transmission and transforming equipment.
Trial operation substation operation risk evaluation method, such as following steps：
Step one：Monitoring information large database concept is cleaned and combed to the data transferred；
Step 2：Inquired about, screened and counted by human-computer interaction interface for the data after cleaning；
Step 3：The data in certain trial operation transformer station section time are taken to be analyzed, by reflection electric network fault accident letter
Breath, reflection equipment abnormal running abnormal information and the important remote measurement amount of reflection are beyond the interval information content difference that transfinites of bound
According to the weighted sum Σ R of the risk information number in different this times of Risk rated ratio coefficient weighted calculation, and calculate operation wind
Dangerous degree K.
Preferably, the weighted sum Σ R of risk information number calculation formula isλi
For weight coefficient (i=1,2,3), Ri is information content (i=1,2,3), and α is monitoring information risk weight coefficient, and t transports for equipment
The row life-span.
Preferably, with reference to monthly maintenance and visit program, operation risk time window is set to one month, t unit is
Month.
Preferably, it is characterized in that：0 ＜ t ＜ 12.
Preferably, operation risk degree K calculation formula is
Σ A are the average value of each transformer station's weighted risk information summation of power network, set the trial operation substation operation risk as 50, and
By each substation operation risk of power network by 0 to 100 standardization.
Sum it up, the trial operation substation operation risk evaluation system of the present invention, can combine test run in area power grid
Row substation operation, maintenance, the reality of work situation of maintenance, the association analysis in application data excavation, dynamic evaluation trial operation
Operation risk of the transformer station in trial operation stage different time.The state that the risk evaluation system can combine power transmission and transforming equipment is commented
Valency system, the formulation for the fortune inspection plan of trial operation transformer station provides data supporting and reference standard, realizes trial operation transformer station
The maintenance of accurate O＆M, and then improve the overall O＆M required level of service of area power grid trial operation transformer station.
The appraisal procedure of the present invention utilizes regulation automatization system, supporting system technology, production management system etc.
The detailed datas such as power transmission and transforming equipment Centralized Monitoring information, operation account, defect record, pass through a variety of data minings such as association analysis
Method, the operation risk of quantitative evaluation trial operation transformer station, and then auxiliary equipment maintenance, the formulation arrangement of visit program, lifting
Power transmission and transforming equipment accident, the management and control ability of defect risk.On the basis of the management and control of trial operation substation operation risk is effectively realized,
Ensure the safety and stability of operation of power networks.
Brief description of the drawings
It is intended to be easy to describe preferred embodiment in conjunction with the following drawings, does not constitute limiting the scope of the invention.
Fig. 1 is the operation risk assessment system schematic diagram of the present invention；
Fig. 2 is the operation risk assessment curve of certain transformer station；
Fig. 3 is the internal risks weight coefficient curve of certain trial operation transformer station；
Fig. 4 is certain trial operation Substation Risk Assessment result.
Embodiment
Understand the present invention for convenience, below in conjunction with the accompanying drawings in the preferred embodiment of the invention that provides the present invention is entered
The detailed description of row.
Trial operation substation operation risk evaluation system of the present invention as shown in Figure 1, the monitoring letter of regulation automatization system
Breath data are associated and docked with production division's data including at least supporting system technology and production management system, supervise
It is the running state information for covering primary equipment in transformer station, secondary device and auxiliary equipment to control information data.Regulate and control daily work
In work, monitor is by monitoring the information alerts such as the unit exception in regulation automatization system, out-of-limit, accident, and discovering device lacks
Fall into or failure, notify the site inspection of O＆M unit, make an inspection tour and handle.Monitoring information data can be with the fortune of effecting reaction grid equipment
Market condition, self-defect and potential safety hazard.Production division's data include the letter such as operation account and defect record of power transmission and transforming equipment
Breath.
Monitoring information data and production division's data correlation are docked and are deployed into monitoring information large database concept by the present invention leads to
A variety of data digging methods such as association analysis are crossed, carry out quantitative evaluation substation operation risk.In real work, operation of power networks
All the time substantial amounts of power system monitor information can be all produced, these information are divided into five classes, the present invention for wherein important
Three category informations are researched and analysed, respectively reflect electric network fault accident information, reflection equipment abnormal running abnormal information and
Reflect important remote measurement amount beyond the interval information that transfinites of bound.
Monitoring information large database concept has inquiry, screening, the multifunctional man-machine interactive interface of statistics.In the present embodiment, fortune
Monitoring information large database concept is built with MySQL management systems and the Excel man-machine interfaces based on VBA programming realization large database concepts are handed over
Mutual function, in terms of human-computer interaction interface can be by different time sections, different substation, unlike signal classification, different keywords
Content is inquired about and screened to monitoring information, the selection result can according to the date, the time, zone of responsibility, information category, transformer station,
Information content etc. is segmented, and Excel man-machine interfaces are integrated into by statistical function, is easy to user's record, the statistics of analysis information
Situation.Then, for reflection electric network fault accident information, reflection equipment abnormal running abnormal information and the important remote measurement amount of reflection
Analysis is associated beyond the interval information that transfinites of bound, the three category informations data quantified are obtained respectively according to different wind
The weighted sum of the risk information number in dangerous weight coefficient weighted calculation trial operation stage simultaneously calculates the realization standardization of operation risk degree
Risk assessment, obtains overhaul of the equipments and visit program of the assessment result to transport inspection department door and provides data supporting.
The trial operation substation operation risk evaluation method of the present invention, such as following steps：
Step one：Monitoring information large database concept is cleaned and combed to the data transferred.By taking the power network of Hangzhou as an example, 2016
March in year, information was total 442392 in the original monitoring information data of Hangzhou power network to September, wherein reflection electric network fault accident letter
Breath 26436, reflection equipment abnormal running abnormal information 198141 reflects important remote measurement amount beyond the super of bound interval
Limit information 217817, after monitoring information large database concept is set up, original monitoring information data need to carry out data cleansing and combing.
Step 2：Inquired about, screened and counted by human-computer interaction interface for the data after cleaning.Monitoring information is big
Database can be by content in terms of different time sections, different substation, unlike signal classification, different keywords to monitoring information
Inquired about and screened, the selection result can be segmented according to date, time, zone of responsibility, information category, transformer station, information content etc.,
Excel man-machine interfaces are integrated into by statistical function, are easy to user's record, the statistical conditions of analysis information.
Step 3：The data in certain trial operation transformer station section time are taken to be analyzed, by reflection electric network fault accident letter
Breath, reflection equipment abnormal running abnormal information and the important remote measurement amount of reflection are beyond the interval information content difference that transfinites of bound
According to the weighted sum Σ R of the risk information number in different this times of Risk rated ratio coefficient weighted calculation, and calculate operation wind
Dangerous degree K.
The weighted sum Σ R of risk information number calculation formula isλ i are to add
Weight coefficient (i=1,2,3), Ri is information content (i=1,2,3), and α is monitoring information risk weight coefficient, and t is that equipment runs the longevity
Life.Monthly maintenance and visit program are such as combined, operation risk time window may be configured as one month, and t unit is set as the moon,
0 ＜ t ＜ 12.
Operation risk degree K calculation formula isΣ A are power network
The average value of each transformer station's weighted risk information summation, sets the trial operation substation operation risk as 50, and power network is each
Substation operation risk is by 0 to 100 standardization.
The calculation formula of above-mentioned trial operation substation operation risk assessment is the monitoring information based on regulation automatization system
The standardization methods of risk assessment of data, among standardization methods of risk assessment, by the original for obtaining regulation automatization system
Beginning monitoring information data, analysis exception, accident, out-of-limit three classes monitoring information situation of change, through association analysis, so that it may to transformer station
Operation risk carry out quantitative evaluation.For example, taking the monitoring information data in certain transformer station section time to be analyzed, by the station
Exception, accident, out-of-limit information content within this time are weighted according to different Risk rated ratio coefficients respectively, can calculate the station
Weighted risk information summation Σ R in the time.During actual verification, the operation risk of transformer station substantially conforms to normal state point
Cloth, and it is linear with the weighted risk information summation of the transformer station.Take the average weighted risk information summation of area power grid
For median, it is assumed that its operation risk degree is 50, and by the substation operation risk of full area power grid by 0 to 100 standardization.Root
According to power network practical experience, the relation of the operation risk degree of certain transformer station and the weighted sum of risk information number meets the fortune in Fig. 2
Row risk assessment curve.
Based on operation risk assessment of the above-mentioned standardization methods of risk assessment to trial operation transformer station, by actual work
Defect record and the development of maintenance work in work, the influence of service work, the monitoring information risk of trial operation transformer station are not considered
Weight coefficient α o, which are obeyed, is desired for 0, and variance is σ o2 normal distribution, as shown in figure 3, utilizing the weighted sum of risk information number
Σ R calculation formula, can calculate the weighted sum Σ Ro of the risk information number of certain trial operation transformer station, wherein, the trial operation
The equipment service life of transformer station takes 0<to<12.Ideally, it is assumed that the trial operation transformer station trial operation done state, i.e.,
Equipment life be December when, without any operation risk, and if take probability confidential interval be 0.9974, this in risk assessment is just too
The variances sigma o values of distribution take 4 (12/3).Described on end, the weighted sum Σ Ro of the risk information number of certain trial operation transformer station can be with
Calculated by following formula：
With《State Grid Corporation of China's substation equipment monitoring information specification》、《Zhejiang electric power saving system regional dispatching control pipe
Manage code》Etc. foundation is defined as, Centralized Monitoring accident, exception, out-of-limit three category information based on actual regulation automatization system and
The detailed datas such as power transmission and transforming equipment operation account, the defect record of supporting system technology, production management system etc. carry out big
Data relation analysis, is deeply excavated, and for the O＆M characteristic of trial operation transformer station, the risk evaluation system of the invention of proposition
And method, realize the quantitative evaluation of trial operation substation operation risk.The assessment result can be the maintenance of transport inspection department door, make an inspection tour
Plan provides data supporting, is that trial operation transformer station formulates more rational fortune inspection work plan, so as to strengthen operation of power networks wind
The management and control of danger, ensures power network safety operation.
As a checking embodiment, it is object analysis to take Hangzhou power network trial operation transformer station, assesses its in March, 2016
To the operation risk degree of September, curve shown in Fig. 4 upper half figures is made.Fig. 4 lower half figures are the monthly trial operation substation accident, different
Often, the result after out-of-limit Information Number is weighted.
As seen from Figure 4, the transformer station is higher in the risk in April and June, reaches more than 200, illustrates transformer station
There is larger operation risk in the two middle of the month.The running log and record of examination at the station by contrast, the station is in April and June
Between occur the urgent defect of equipment, cause corresponding warning message largely frequency brush, arrange service work after, equipment deficiency eliminate,
Recover normal operation.Transformer station's May and April in comparison diagram 4, July and June risk evaluation result, it can be seen that substantially
Decline, this also illustrates that service work effectively eliminates hidden trouble of equipment, ensures the safe operation of transformer station.
It can also be seen that the transformer station 7,8,9 trimestral operation risks are relatively low in Fig. 4,50 are below.This is due to 7
After month, Hangzhou power network enters the just before a battle stage that power supply is protected in summit, and the multidisciplinary integration and cooperation of Hangzhou company utilizes this project data
Achievement is excavated, grid equipment defect is targetedly eliminated, strengthens power grid risk management and control, achieves huge effect.
Some technical terms used in the present invention are intended merely to facilitate description, are not construed as limiting the invention,
The present invention is not limited to above-described preferably embodiment, the public affairs that can be known based on those skilled in the art
Know technology or using the various modifications of equivalence replacement and the embodiment of change is capable of in the prior art, it is every to be based on this hair
Bright spirit or technical concept, should be included in the scope of the protection.
Claims (10)
1. trial operation substation operation risk evaluation system, it is characterized in that：The monitoring information data of regulation automatization system with extremely
Production division's data less comprising supporting system technology and production management system are associated and docked, and build monitoring information
Large database concept is simultaneously formed with inquiry, screening, the multifunctional man-machine interactive interface counted, for reflection electric network fault accident letter
Breath, reflection equipment abnormal running abnormal information and the important remote measurement amount of reflection are associated beyond the interval information that transfinites of bound
Analysis, obtains the three category informations data quantified respectively according to the wind in different Risk rated ratio coefficient weighted calculation trial operation stages
The weighted sum of dangerous Information Number simultaneously calculates the realization standardization risk assessment of operation risk degree, obtains assessment result to transport inspection department door
Overhaul of the equipments and visit program provide data supporting.
2. trial operation substation operation risk evaluation system according to claim 1, it is characterized in that：Managed with MySQL
System building monitoring information large database concept and the Excel man-machine interface interactive functions based on VBA programming realization large database concepts.
3. trial operation substation operation risk evaluation system according to claim 2, it is characterized in that：Human-computer interaction interface is extremely
Monitoring information can be inquired about and sieved by different time sections, different substation, unlike signal classification, different keywords less
Choosing.
4. trial operation substation operation risk evaluation system according to claim 3, it is characterized in that：The selection result at least may be used
According to date, time, zone of responsibility, information category, transformer station, information content subdivision.
5. trial operation substation operation risk evaluation system according to claim 1, it is characterized in that：Monitoring information packet
The running state information of primary equipment in transformer station, secondary device and auxiliary equipment is included, production division's data are set including power transmission and transformation
Standby operation account and defect record.
6. trial operation substation operation risk evaluation method, it is characterized in that：Such as following steps：
Step one：Monitoring information large database concept is cleaned and combed to the data transferred；
Step 2：Inquired about, screened and counted by human-computer interaction interface for the data after cleaning；
Step 3：The data in certain trial operation transformer station section time are taken to be analyzed, by reflection electric network fault accident information, instead
Reflect equipment abnormal running abnormal information and the important remote measurement amount of reflection beyond bound it is interval transfinite information content respectively according to
The weighted sum Σ R of risk information number in different this times of Risk rated ratio coefficient weighted calculation, and calculate operation risk degree
K。
7. trial operation substation operation risk evaluation method according to claim 6, it is characterized in that：Risk information number plus
Power summation Σ R calculation formula isλ i are weight coefficient (i=1,2,3), and Ri is
Information content (i=1,2,3), α is monitoring information risk weight coefficient, and t is equipment service life.
8. trial operation substation operation risk evaluation method according to claim 7, it is characterized in that：With reference to it is monthly maintenance and
Visit program, operation risk time window is set to one month, and t unit is the moon.
9. trial operation substation operation risk evaluation method according to claim 8, it is characterized in that：0 ＜ t ＜ 12.
10. trial operation substation operation risk evaluation method according to claim 7, it is characterized in that：Operation risk degree K's
Calculation formula isΣ A are that each transformer station's weighted risk information of power network is total
The average value of sum, sets the trial operation substation operation risk as 50, and each substation operation risk of power network is pressed into 0 to 100
Standardization.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109492913A (en) * | 2018-11-13 | 2019-03-19 | 广东电网有限责任公司 | A kind of modularization Risk Forecast Method of distribution terminal, device and can storage medium |
| CN110188992A (en) * | 2019-04-26 | 2019-08-30 | 国网江苏省电力有限公司物资分公司 | A kind of substation secondary device risk forecast method |
| CN110826939A (en) * | 2019-11-29 | 2020-02-21 | 国网天津市电力公司电力科学研究院 | Method for evaluating running state of distributed unattended substation |
| CN111639141A (en) * | 2020-05-26 | 2020-09-08 | 李云祥 | Data testing method and device and computer terminal |
| CN111784003A (en) * | 2020-06-11 | 2020-10-16 | 重庆东电通信技术有限公司 | Power transmission and transformation equipment state evaluation method based on big data analysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109492913A (en) * | 2018-11-13 | 2019-03-19 | 广东电网有限责任公司 | A kind of modularization Risk Forecast Method of distribution terminal, device and can storage medium |
| CN109492913B (en) * | 2018-11-13 | 2022-01-25 | 南方电网电力科技股份有限公司 | Modular risk prediction method and device for power distribution terminal and storable medium |
| CN110188992A (en) * | 2019-04-26 | 2019-08-30 | 国网江苏省电力有限公司物资分公司 | A kind of substation secondary device risk forecast method |
| CN110826939A (en) * | 2019-11-29 | 2020-02-21 | 国网天津市电力公司电力科学研究院 | Method for evaluating running state of distributed unattended substation |
| CN111639141A (en) * | 2020-05-26 | 2020-09-08 | 李云祥 | Data testing method and device and computer terminal |
| CN111639141B (en) * | 2020-05-26 | 2023-08-15 | 湖北华中电力科技开发有限责任公司 | Data testing method and device and computer terminal |
| CN111784003A (en) * | 2020-06-11 | 2020-10-16 | 重庆东电通信技术有限公司 | Power transmission and transformation equipment state evaluation method based on big data analysis |
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