CN110276558A - A kind of maintaining method of power grid, system and computer readable storage medium - Google Patents
A kind of maintaining method of power grid, system and computer readable storage medium Download PDFInfo
- Publication number
- CN110276558A CN110276558A CN201910568270.5A CN201910568270A CN110276558A CN 110276558 A CN110276558 A CN 110276558A CN 201910568270 A CN201910568270 A CN 201910568270A CN 110276558 A CN110276558 A CN 110276558A
- Authority
- CN
- China
- Prior art keywords
- value
- network model
- electric network
- assessed
- parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06395—Quality analysis or management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention discloses a kind of maintaining methods of power grid, comprising: assesses the topological relation of electric network model, obtains topological relation assessment result and determine topological relation assessed value；The parameter integrity degree of electric network model is assessed, obtain parameter integrity degree assessment result and determines parameter integrity degree assessed value；The steady state data quality of electric network model is assessed, obtain steady state data quality assessment result and determines steady state data quality assessment value；The total evaluation value of electric network model is determined according to the every assessed value obtained, and when total evaluation value is lower than preset threshold, power grid is safeguarded according to every assessment result.Using the scheme of the application, the quality of electric network model can be assessed more fully hereinafter, to be conducive to safeguard power grid, confidence level and the functionization for improving smart grid control system types of applications are horizontal.Present invention also provides a kind of maintenance system of power grid and computer readable storage mediums, have corresponding effect.
Description
Technical field
The present invention relates to electric power network technical fields, more particularly to a kind of maintaining method of power grid, system and computer
Readable storage medium storing program for executing.
Background technique
In the construction of smart grid Dispatching Control System, the quality of data of electric network model will have a direct impact on intelligent scheduling
The confidence level of the various analytical calculations of technology support system.Since the time of day of actual electric network can not directly acquire, so logical
It is often acquisition steady state data, the quality of steady state data is obtained by the residual error between estimated value and sampled value, that is, is realized pair
The quality evaluation of electric network model safeguards power grid further according to quality assessment result.
And when carrying out the quality evaluation of steady state data, what is generallyd use at present is to measure qualification rate index, that is, is excluded
After obvious undesirable set of data, the metric data of each sampling is compared with corresponding threshold value or threshold range
Compared with whether qualified determining the metric data, to obtain the qualification rate of metric data, pass through the qualification rate and assess electric network model
Quality.
But other than steady state data, the parameter of electric network model itself can also be had an impact the quality of electric network model,
And model parameter mistake as electrical network basic data safeguard in more concealed mistake, do not show directly, and always with
Also not propose evaluation index to the quality of the model parameter of electric network model, the quality of model parameter is caused not draw attention.
In conclusion how to assess more fully hereinafter the quality of electric network model, to be conducive to carry out power grid
Maintenance, confidence level and the functionization for improving smart grid control system types of applications are horizontal, are that current those skilled in the art are anxious
Technical problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of maintaining method of power grid, system and computer readable storage mediums, with more
Comprehensively the quality of electric network model is assessed, to be conducive to safeguard power grid, improves smart grid control system
The confidence level of types of applications and functionization are horizontal.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of maintaining method of power grid, comprising:
The topological relation of electric network model is assessed, obtain topological relation assessment result and determines that topological relation is assessed
Value；
The parameter integrity degree of the electric network model is assessed, obtain parameter integrity degree assessment result and determines parameter
Integrity degree assessed value；
The steady state data quality of the electric network model is assessed, obtain steady state data quality assessment result and is determined
Steady state data quality assessment value；
The total evaluation value of the electric network model is determined according to the every assessed value obtained, and in the total evaluation value
When lower than preset threshold, power grid is safeguarded according to every assessment result.
Preferably, further includes:
The looped network reactance parameter of the electric network model is assessed, obtain looped network reactance parameter assessment result and is determined
Looped network reactance parameter assessed value.
Preferably, the topological relation to electric network model is assessed, and is obtained topological relation assessment result and is determined
Topological relation assessed value, comprising:
For each of electric network model component, when at least one of there is mistake in the topological relation of the component
When, it obtains the corresponding weighted value of each single item mistake and sums, and deduct points summed result as the topological relation of the component
Value；
Preset first initial value is successively subtracted to the topological relation deduction of points of all parts in the electric network model
Value, the topological relation assessed value of the difference obtained as the electric network model；
Including each, there are the lists of the component of topological relation mistake for building, as the topological relation assessment knot obtained
Fruit.
Preferably, the parameter integrity degree to the electric network model is assessed, and obtains parameter integrity degree assessment result
And determine parameter integrity degree assessed value, comprising:
Obtain preset first list；
For each single item parameter name in the first list, judge whether to collect parameter corresponding to this parameter name
Value, and count the not collected number of entry；
By the number of entry counted multiplied by preset first numerical value, as parameter integrity degree deduction of points value；
Preset second initial value is subtracted into the parameter integrity degree deduction of points value, the difference obtained is as the electric network model
The parameter integrity degree assessed value；
Building includes the list of each Items being missed, as the parameter integrity degree assessment result obtained.
Preferably, the steady state data quality to the electric network model is assessed, and obtains steady state data quality evaluation
As a result and steady state data quality assessment value is determined, comprising:
The quantity for counting the invalid data in the steady state data of the electric network model obtains corresponding first deduction of points value；
Preset third initial value is subtracted into the first deduction of points value, the difference obtained is as described in the electric network model
Steady state data quality assessment value；
Building includes the list of each invalid data, as the steady state data quality assessment result obtained.
Preferably, the steady state data quality to the electric network model is assessed, and obtains steady state data quality evaluation
As a result and steady state data quality assessment value is determined, comprising:
The quantity for counting the invalid data in the steady state data of the electric network model obtains corresponding first deduction of points value；
Count the electric network model zero injection bus in there are the quantity of unbalanced bus, obtain corresponding second
Deduction of points value；
Preset third initial value is successively subtracted into the first deduction of points value and the second deduction of points value, the difference obtained
The steady state data quality assessment value as the electric network model；
Building include each described invalid data and including each there are it is unbalanced zero injection bus list,
As the steady state data quality assessment result obtained.
Preferably, the steady state data quality to the electric network model is assessed, and obtains steady state data quality evaluation
As a result and steady state data quality assessment value is determined, comprising:
The quantity for counting the invalid data in the steady state data of the electric network model obtains corresponding first deduction of points value；
Count the electric network model zero injection bus in there are the quantity of unbalanced bus, obtain corresponding second
Deduction of points value；
The set and preset measurement estimated value institute structure that the valid data for the electric network model that counting statistics goes out are constituted
At set between cross entropy, as third deduction of points value；
Preset third initial value is successively subtracted into the first deduction of points value, the second deduction of points value and the third button
Score value, the steady state data quality assessment value of the difference obtained as the electric network model；
Building include each described invalid data, including each there are it is unbalanced zero injection bus, and including
The list of the cross entropy, as the steady state data quality assessment result obtained.
A kind of maintenance system of power grid, comprising:
Topological relation evaluation module is assessed for the topological relation to electric network model, obtains topological relation assessment knot
Fruit simultaneously determines topological relation assessed value；
Parameter integrity degree evaluation module is assessed for the parameter integrity degree to the electric network model, show that parameter is complete
Whole degree assessment result simultaneously determines parameter integrity degree assessed value；
Steady state data quality assessment modules are assessed for the steady state data quality to the electric network model, are obtained steady
State data quality accessment result simultaneously determines steady state data quality assessment value；
Total quality evaluation module, for determining the total evaluation of the electric network model according to the every assessed value obtained
Value, and when the total evaluation value is lower than preset threshold, power grid is safeguarded according to every assessment result.
Preferably, further includes:
Looped network reactance parameter evaluation module is assessed for the looped network reactance parameter to the electric network model, obtains ring
Net reactance parameter assessment result simultaneously determines looped network reactance parameter assessed value.
A kind of computer readable storage medium is stored with computer program on the computer readable storage medium, described
The step of maintaining method of power grid described in any of the above-described is realized when computer program is executed by processor.
In the scheme of the application, it is contemplated that other than steady state data, the model parameter of electric network model itself also can be to electricity
The quality of pessimistic concurrency control has an impact, therefore assesses model parameter and steady state data, passes through the power grid mould determined
The total evaluation value of type carries out the quality evaluation of electric network model, and when total evaluation value is lower than preset threshold, according to items
Assessment result safeguards power grid.When assessing model parameter, specifically include to the parameter integrity degree of electric network model into
Row is assessed and is assessed the topological relation of electric network model, so that when the topological relation of electric network model is incorrect or model
It is able to reflect in total evaluation value when parameter is imperfect, therefore the scheme of the application can be more fully hereinafter to electric network model
Quality assessed, to be conducive to safeguard power grid, improve the confidence level of smart grid control system types of applications
With functionization level.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of implementation flow chart of the maintaining method of power grid in the present invention；
Fig. 2 is a kind of structural schematic diagram of the maintenance system of power grid in the present invention.
Specific embodiment
Core of the invention is to provide a kind of maintaining method of power grid, can more fully hereinafter to the quality of electric network model into
Row assessment improves the confidence level and functionization of smart grid control system types of applications to be conducive to safeguard power grid
It is horizontal.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of implementation flow chart of the maintaining method of power grid in the present invention, the maintenance side of the power grid
Method may comprise steps of:
Step S101: assessing the topological relation of electric network model, obtains topological relation assessment result and determines to open up
Flutter relationship assessment value.
Electric network model described herein is not a virtual model, but what the power grid component of entity was constituted
Electric network model, i.e. all parts in electric network model are the component being actually disposed in power grid, such as the relay in power grid,
Transformer, transmission line of electricity, change of current bus etc..
When assessing the quality of model parameter of electric network model, topological relation is important part.Specifically, can count
Everywhere connection error in topological relation out, thus obtain topological relation assessment result and determine topological relation assessed value, and
It, can also be wrong for different connections and it should be noted that the influence degree as caused by different connection error is different
The corresponding weight of misconfiguration, so that the topological relation assessed value obtained is more advantageous to the error degree of reflection topological relation.
In a kind of specific embodiment of the invention, step S101 may include the following three steps:
First step: for each of electric network model component, when having at least one in the topological relation of the component
When item mistake, obtains the corresponding weighted value of each single item mistake and simultaneously sum, and closed summed result as the topology of the component
Setting fastening score value；
Second step: preset first initial value is successively subtracted to the topological relation button of all parts in electric network model
Score value, topological relation assessed value of the difference obtained as electric network model；
Third step: including each, there are the lists of the component of topological relation mistake for building, as the topology obtained
Relationship assessment result.
In this kind of embodiment, the mistake of the topological relation of electric network model is corresponded on corresponding component, i.e., with component
The statistics of topological relation deduction of points value is carried out for unit, and then obtains the topological relation assessed value of electric network model.For example, in positive reason
Under condition, the B point of the first end connection part of appliance 1 of the first winding of transformer K, the second end of first winding connects part of appliance
2 B point, the A point of the first end connection part of appliance 3 of secondary winding, the A point of the second end connection part of appliance 4 of secondary winding.
And when the topological relation of actually detected transformer K, detect that two connecting pins of first winding coincide with preset data, still
The first end of secondary winding is connected to the A point of part of appliance 5, and the second end of secondary winding is connected to the B of part of appliance 5
Point, transformer K just has two Topology Errors, such as this two wrong weighted values are 2, then the topological relation button of transformer K
Score value is 4.
The specific value of first initial value, which can according to need, to be set and is adjusted, and the first initial value is successively subtracted electricity
The topological relation deduction of points value of all parts in pessimistic concurrency control, can obtain the topological relation assessed value of electric network model.Such as it is pre-
If the first initial value be 30, there is mistake in the topological relation of transformer K, transmission line of electricity M and breaker N in electric network model
Accidentally, specifically, transformer K has connection error at two, weighted value is 2, and the topological relation deduction of points value of transformer K is 4；Transmission of electricity
Route M has connection error at one, and weighted value 3, then the topological relation deduction of points value of transmission line of electricity M is 4；Breaker N has two
Locate connection error, weighted value is respectively 2 and 4, then the topological relation deduction of points value of breaker N is 6, then in this kind of scene, obtains
The topological relation assessed value of electric network model is 20-4-3-6=7.
During the topological relation to electric network model is assessed, can determining each, there are topological relation mistakes
Component accidentally, therefore can construct including each there are the list of the component of topological relation mistake, it is closed as the topology obtained
It is assessment result, when in order to subsequent progress power grid maintenance, can determines to need to be attached relationship tune according to the list
Whole all parts.Such as in above-described embodiment, the list of building may include: transformer K, transmission line of electricity M, breaker N.When
So, specific description can also be added, in the list further for showing the specific of all parts in the list
Topological relation error situation.
Step S102: the parameter integrity degree of electric network model is assessed, obtains parameter integrity degree assessment result and determination
Parameter integrity degree assessed value out.
Other than topological relation, it is contemplated that an important factor for influencing model parameter quality, therefore parameter integrity degree is also
Parameter integrity degree is assessed, obtain parameter integrity degree assessment result and determines parameter integrity degree assessed value.
In a kind of specific embodiment of the invention, step S102 can specifically include following five steps:
Step 1: preset first list is obtained；
Step 2: for each single item parameter name in first list, judge whether to collect corresponding to this parameter name
Parameter value, and count the not collected number of entry；
Step 3: by the number of entry counted multiplied by preset first numerical value, as parameter integrity degree deduction of points value；
Step 4: preset second initial value is subtracted into parameter integrity degree deduction of points value, the difference obtained is as electric network model
Parameter integrity degree assessed value；
Step 5: building includes the list of each Items being missed, as the parameter integrity degree assessment obtained
As a result.
It should include complete Items in first list, in general, required for the advanced computation of available power grid
Each single item parameter parameter name, establish first list, certainly, staff can also according to actual needs to first list into
Row setting and adjustment, have no effect on implementation of the invention.For each single item parameter name in first list, when not collecting this
When parameter value corresponding to item parameter name, just illustrate that the model parameter of acquisition is imperfect.By the number of entry counted multiplied by pre-
If the first numerical value, obtain parameter integrity degree deduction of points value, then preset second initial value is subtracted into parameter integrity degree deduction of points value, just
It can be concluded that the parameter integrity degree assessed value of electric network model.The value of preset first numerical value, which also can according to need, to be set
And adjustment.
It should also be noted that, being the number of entry that will count multiplied by preset first in this kind of specific embodiment
Numerical value, that is to say, that the score value that different types of model parameter is detained when omitting is the same.And in other embodiments,
For the different types of model parameter of omission, different numerical value weights can also be respectively configured, to embody different types of mould
The respective importance of shape parameter, that is, parameter integrity degree assessed value can be made to be more conducive to reflect the something lost of the model parameter of acquisition
Leak situation.
When the parameter integrity degree to electric network model is assessed, each can be found out by first list and be not collected
Parameter, that is, therefore the parameter being missed can construct the list including each Items being missed, as
Parameter integrity degree assessment result out finds out the reason of these Items are missed will pass through power grid maintenance.
In a kind of specific embodiment of the invention, can also include:
The looped network reactance parameter of electric network model is assessed, obtain looped network reactance parameter assessment result and determines looped network
Reactance parameter assessed value.
In this kind of embodiment, other than topological relation and parameter integrity degree, also to the ring in model parameter quality
Net reactance parameter is assessed.
For large-scale power grid, there is close ties, the ring of mistake between looped network power distribution and looped network reactance parameter
Net reactance parameter will lead to looped network power calculated result and actual deviation it is very big.The looped network reactance parameter to electric network model into
When row assessment, looped network reactance parameter can be calculated based on the looped network power allocation case of acquisition, and calculated value and model are joined
Preset looped network reactance parameter is compared in number, if exceeding preset range, can determine preset ring in model parameter
Net reactance parameter is incorrect.For example, when judging that preset looped network reactance parameter is incorrect in model parameter, the looped network that obtains
Reactance parameter assessed value is 0, when judging that preset looped network reactance parameter is correct in model parameter, the looped network reactance parameter that obtains
Assessed value is 10.In addition it is also possible to according further to calculated looped network reactance parameter and preset looped network reactance parameter it
Between deviation size, determine corresponding looped network reactance parameter assessed value, being conducive to looped network reactance parameter assessed value more can be anti-
Mirror the extent of error of the looped network reactance parameter in the model parameter of electric network model.
Looped network reactance parameter assessment result can be reasonable for looped network reactance parameter, or unreasonable for looped network reactance parameter,
It is specific whether reasonable, the looped network reactance parameter assessed value obtained can be depended on.When carrying out power grid maintenance, according to looped network reactance
Parameter evaluation result can determine the need for adjustment looped network reactance parameter.
Step S103: the steady state data quality of electric network model is assessed, obtains steady state data quality assessment result simultaneously
Determine steady state data quality assessment value.
When carrying out the quality evaluation of steady state data, can be assessed based on traditional qualification rate, it will be underproof steady
State data are counted, and obtain steady state data quality assessment result, and calculate corresponding steady state data quality according to qualification rate
Assessed value.Furthermore implementation of the invention can also be had no effect on according to actual needs using other assessment modes.
Step S104: the total evaluation value of electric network model is determined according to the every assessed value obtained, and in total evaluation
When value is lower than preset threshold, power grid is safeguarded according to every assessment result.
In general, directly the every assessed value obtained can be summed, electric network model can also be determined with weighted sum
Total evaluation value, such as the total evaluation value of electric network model determined in a kind of occasion is 87, and staff can obtain
Conclusion out: the satisfactory quality of the electric network model.When total evaluation value is lower than preset threshold, illustrate the entirety of electric network model
Quality is undesirable, then needs to safeguard power grid according to every assessment result, such as wrap in topological relation assessment result
Having included each, there are the components of topological relation mistake, therefore staff can safeguard these components, so that topological
Relationship restores correct.
In the scheme of the application, it is contemplated that other than steady state data, the model parameter of electric network model itself also can be to electricity
The quality of pessimistic concurrency control has an impact, therefore assesses model parameter and steady state data, passes through the power grid mould determined
The total evaluation value of type carries out the quality evaluation of electric network model, and when total evaluation value is lower than preset threshold, according to items
Assessment result safeguards power grid.When assessing model parameter, specifically include to the parameter integrity degree of electric network model into
Row is assessed and is assessed the topological relation of electric network model, so that when the topological relation of electric network model is incorrect or model
It is able to reflect in total evaluation value when parameter is imperfect, therefore the scheme of the application can be more fully hereinafter to electric network model
Quality assessed, to be conducive to safeguard power grid, improve the confidence level of smart grid control system types of applications
With functionization level.
In a kind of specific embodiment of the invention, step S103 may include:
The quantity for counting the invalid data in the steady state data of electric network model, obtains corresponding first deduction of points value；
Preset third initial value is subtracted into the first deduction of points value, steady state data quality of the difference obtained as electric network model
Assessed value；
Building includes the list of each invalid data, as the steady state data quality assessment result obtained.
When in view of using qualification rate as index in traditional scheme, obvious undesirable set of data can be excluded, that is, are arranged
Remove invalid data.Such as in 100 data, 5 data values are 0, hence it is evident that are invalid datas, remaining 95 data pass through threshold value
Determining after judging has 91 as qualified data, then can determine whether out that qualification rate is 91/95.In general, part of appliance to be measured does not work,
Or to will lead to the related data of the component extremely obviously abnormal for detection device.And part of appliance to be measured does not work, usually
Caused by user is shielded, i.e., the part of appliance is removed from electric network model.If in view of invalid data is excluded again
The statistics for carrying out qualification rate, is unfavorable for the case where accurately reflecting electric network model, therefore in this kind of embodiment, counts power grid mould
The quantity of invalid data in the steady state data of type obtains corresponding first deduction of points value.Such as each invalid data needs to detain two
Point, when counting 3 invalid datas, corresponding first deduction of points value is then 6.In addition it is also possible to be different types of steady state data
Different weights is configured, so that the case where the first deduction of points value is more advantageous to the invalid data that reflection counts.Third initial value
Value, which also can according to need, to be set and is adjusted.
Further, since the presence of invalid data can reduce steady state data quality assessment value, therefore it is also beneficial to the scene of improving
Data acquisition integrality, i.e., promotion staff carry out data comprehensive acquisition.The formation in unobservable region is often all
Incomplete related with steady state data acquisition, the coverage rate for improving steady state data acquisition is also beneficial to avoid the shape in unobservable region
At.
Invalid data in the steady state data by electric network model counts finish after, can construct including each
The list of invalid data, as the steady state data quality assessment result obtained, so that when carrying out power grid maintenance, it can be according to this
List is safeguarded, such as some invalid data, whether the acquisition equipment that detection acquires the invalid data is abnormal, if
It is without exception to acquire equipment, then detects in electric network model, whether the associated components equipment that will affect the numerical value of the invalid data is abnormal,
And abnormal part of appliance is safeguarded.
In a kind of specific embodiment of the invention, step S103 may include:
The quantity for counting the invalid data in the steady state data of electric network model, obtains corresponding first deduction of points value；
It counts in the bus of zero injection of electric network model there are the quantity of unbalanced bus, show that corresponding second deducts points
Value；
Preset third initial value is successively subtracted into the first deduction of points value and the second deduction of points value, the difference obtained is as power grid
The steady state data quality assessment value of model；
Building include each invalid data and including each there are it is unbalanced zero injection bus list, as
The steady state data quality assessment result obtained.
In this kind of embodiment, other than measuring to invalid data, the mother of zero injection of electric network model is also counted
There are the quantity of unbalanced bus in line, obtain corresponding second deduction of points value.By the mother for counting zero injection of electric network model
There are the quantity of unbalanced bus in line, be conducive to the trend constraint situation for effectively measuring zero injection bus, and due to
It is zero injection bus, judges that the bus of this type is very convenient with the presence or absence of unbalanced situation, i.e., to the input side of bus
Electric current and outlet side electric current are summed respectively can determine whether.And then can construct including each invalid data, and including
There are the lists of unbalanced zero injection bus for each, as the steady state data quality assessment result obtained.Carrying out power grid
It when maintenance, can be safeguarded according to the list, such as each invalid data can be directed to, carry out the phase for influencing the data
The maintenance for closing part of appliance is found out failure cause by maintenance and is eliminated for each there are unbalanced zero injection bus
Failure.
In a kind of specific embodiment of the invention, step S103 can be specifically included:
The quantity for counting the invalid data in the steady state data of electric network model, obtains corresponding first deduction of points value；
It counts in the bus of zero injection of electric network model there are the quantity of unbalanced bus, show that corresponding second deducts points
Value；
The set that the valid data for the electric network model that counting statistics goes out are constituted is constituted with preset measurement estimated value
Cross entropy between set, as third deduction of points value；
Preset third initial value is successively subtracted into the first deduction of points value, the second deduction of points value and third deduction of points value, is obtained
Steady state data quality assessment value of the difference as electric network model；
Building include each invalid data, including each there are it is unbalanced zero injection bus, and including intersect
The list of entropy, as the steady state data quality assessment result obtained.
It is based on qualification rate, specifically, each adopting in traditional scheme, when carrying out quality evaluation for effective steady state data
The metric data of sample is compared with corresponding threshold value or threshold range, determines whether the metric data is qualified.Associated gate
The setting of threshold value is fixed value, has no stringent theoretical foundation, and when two groups of steady state datas qualification rate having the same, this
The measurement residuals of two groups of steady state datas can also have very big difference, i.e. qualification rate can not preferably reflect the reality of steady state data
Border situation.
Therefore, in this kind of embodiment, set and preset that the valid data for the electric network model that counting statistics goes out are constituted
The set that is constituted of measurement estimated value between cross entropy, as third deduction of points value.
In this kind of embodiment, for invalid steady state data, reflected by the first deduction of points value, for zero injection
Bus existing for imbalance situation, reflected by the second deduction of points value, and be directed to effective steady state data, pass through third
Deduction of points value is reflected, i.e., is reflected by measuring efficient rather than traditional measurement qualification rate.
The measurement accuracy rate for borrowing the concept of cross entropy in information theory and proposing, has stringent theoretical basis, can
Overcome the shortcomings of qualification rate index, is a kind of preferably real system state estimation interpretational criteria based on measurement residuals.It is measuring
When surveying in accuracy rate index to get third deduction of points value out, each valid data are quasi- to measuring according to respectively different measurement residuals
True rate index generates numerical value contribution different between 0~1.
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of maintenance system of power grid, can with it is upper
Text corresponds to each other reference.
Fig. 2 is seen, for a kind of structural schematic diagram of the maintenance system of power grid in the present invention, may include:
Topological relation evaluation module 201 is assessed for the topological relation to electric network model, show that topological relation is assessed
As a result and topological relation assessed value is determined；
Parameter integrity degree evaluation module 202 is assessed for the parameter integrity degree to electric network model, show that parameter is complete
Degree assessment result simultaneously determines parameter integrity degree assessed value；
Steady state data quality assessment modules 203 are assessed for the steady state data quality to electric network model, obtain stable state
Data quality accessment result simultaneously determines steady state data quality assessment value；
Total quality evaluation module 204, for determining the total evaluation of electric network model according to the every assessed value obtained
Value, and when total evaluation value is lower than preset threshold, power grid is safeguarded according to every assessment result.
In a kind of specific embodiment of the invention, further includes:
Looped network reactance parameter evaluation module is assessed for the looped network reactance parameter to electric network model, obtains looped network electricity
Anti- parameter evaluation result simultaneously determines looped network reactance parameter assessed value.
In a kind of specific embodiment of the invention, topological relation evaluation module 201 is specifically used for:
It is obtained for each of electric network model component when there is at least one mistake in the topological relation of the component
It takes the corresponding weighted value of each single item mistake and sums, and using summed result as the topological relation deduction of points value of the component；
The topological relation deduction of points value that preset first initial value is successively subtracted to all parts in electric network model, obtains
Topological relation assessed value of the difference as electric network model；
Including each, there are the lists of the component of topological relation mistake for building, as the topological relation assessment knot obtained
Fruit.
In a kind of specific embodiment of the invention, parameter integrity degree evaluation module 202 is specifically used for:
Obtain preset first list；
For each single item parameter name in first list, judge whether to collect parameter value corresponding to this parameter name,
And count the not collected number of entry；
By the number of entry counted multiplied by preset first numerical value, as parameter integrity degree deduction of points value；
Preset second initial value is subtracted into parameter integrity degree deduction of points value, the difference obtained is complete as the parameter of electric network model
Whole degree assessed value；
Building includes the list of each Items being missed, as the parameter integrity degree assessment result obtained.
In a kind of specific embodiment of the invention, steady state data quality assessment modules 203 are specifically used for:
The quantity for counting the invalid data in the steady state data of electric network model, obtains corresponding first deduction of points value；
Preset third initial value is subtracted into the first deduction of points value, steady state data quality of the difference obtained as electric network model
Assessed value；
Building includes the list of each invalid data, as the steady state data quality assessment result obtained.
In a kind of specific embodiment of the invention, steady state data quality assessment modules 203 are specifically used for:
The quantity for counting the invalid data in the steady state data of electric network model, obtains corresponding first deduction of points value；
It counts in the bus of zero injection of electric network model there are the quantity of unbalanced bus, show that corresponding second deducts points
Value；
Preset third initial value is successively subtracted into the first deduction of points value and the second deduction of points value, the difference obtained is as power grid
The steady state data quality assessment value of model；
Building include each invalid data and including each there are it is unbalanced zero injection bus list, as
The steady state data quality assessment result obtained.
In a kind of specific embodiment of the invention, steady state data quality assessment modules 203 are specifically used for:
The quantity for counting the invalid data in the steady state data of electric network model, obtains corresponding first deduction of points value；
It counts in the bus of zero injection of electric network model there are the quantity of unbalanced bus, show that corresponding second deducts points
Value；
The set that the valid data for the electric network model that counting statistics goes out are constituted is constituted with preset measurement estimated value
Cross entropy between set, as third deduction of points value；
Preset third initial value is successively subtracted into the first deduction of points value, the second deduction of points value and third deduction of points value, is obtained
Steady state data quality assessment value of the difference as electric network model；
Building include each invalid data, including each there are it is unbalanced zero injection bus, and including intersect
The list of entropy, as the steady state data quality assessment result obtained.
Corresponding to above method and system embodiment, the embodiment of the invention also provides a kind of computer-readable storage mediums
Matter can correspond to each other reference with above.Computer program is stored on the computer readable storage medium, computer program is located
Reason device realizes the step of maintaining method of the power grid in any of the above-described embodiment when executing.Computer-readable storage mentioned here
Medium includes random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, posts
Any other form of storage medium well known in storage, hard disk, moveable magnetic disc, CD-ROM or technical field.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including element.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand technical solution of the present invention and its core concept.It should be pointed out that for the common of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for technical staff, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of maintaining method of power grid characterized by comprising
The topological relation of electric network model is assessed, obtain topological relation assessment result and determines topological relation assessed value；
The parameter integrity degree of the electric network model is assessed, obtain parameter integrity degree assessment result and determines that parameter is complete
Spend assessed value；
The steady state data quality of the electric network model is assessed, obtain steady state data quality assessment result and determines stable state
Data quality accessment value；
The total evaluation value of the electric network model is determined according to the every assessed value obtained, and is lower than in the total evaluation value
When preset threshold, power grid is safeguarded according to every assessment result.
2. the maintaining method of power grid according to claim 1, which is characterized in that further include:
The looped network reactance parameter of the electric network model is assessed, obtain looped network reactance parameter assessment result and determines looped network
Reactance parameter assessed value.
3. the maintaining method of power grid according to claim 1, which is characterized in that the topological relation to electric network model into
Row assessment, obtains topological relation assessment result and determines topological relation assessed value, comprising:
It is obtained for each of electric network model component when there is at least one mistake in the topological relation of the component
It takes the corresponding weighted value of each single item mistake and sums, and using summed result as the topological relation deduction of points value of the component；
The topological relation deduction of points value that preset first initial value is successively subtracted to all parts in the electric network model, obtains
The topological relation assessed value of the difference out as the electric network model；
Including each, there are the lists of the component of topological relation mistake for building, as the topological relation assessment result obtained.
4. the maintaining method of power grid according to claim 1, which is characterized in that described complete to the parameter of the electric network model
Whole degree is assessed, and is obtained parameter integrity degree assessment result and is determined parameter integrity degree assessed value, comprising:
Obtain preset first list；
For each single item parameter name in the first list, judge whether to collect parameter value corresponding to this parameter name,
And count the not collected number of entry；
By the number of entry counted multiplied by preset first numerical value, as parameter integrity degree deduction of points value；
Preset second initial value is subtracted into the parameter integrity degree deduction of points value, institute of the difference obtained as the electric network model
State parameter integrity degree assessed value；
Building includes the list of each Items being missed, as the parameter integrity degree assessment result obtained.
5. the maintaining method of power grid according to claim 1, which is characterized in that the stable state number to the electric network model
It is assessed according to quality, obtain steady state data quality assessment result and determines steady state data quality assessment value, comprising:
The quantity for counting the invalid data in the steady state data of the electric network model obtains corresponding first deduction of points value；
Preset third initial value is subtracted into the first deduction of points value, the stable state of the difference obtained as the electric network model
Data quality accessment value；
Building includes the list of each invalid data, as the steady state data quality assessment result obtained.
6. the maintaining method of power grid according to claim 1, which is characterized in that the stable state number to the electric network model
It is assessed according to quality, obtain steady state data quality assessment result and determines steady state data quality assessment value, comprising:
The quantity for counting the invalid data in the steady state data of the electric network model obtains corresponding first deduction of points value；
It counts in the bus of zero injection of the electric network model there are the quantity of unbalanced bus, show that corresponding second deducts points
Value；
Preset third initial value is successively subtracted into the first deduction of points value and the second deduction of points value, the difference conduct obtained
The steady state data quality assessment value of the electric network model；
Building include each described invalid data and including each there are it is unbalanced zero injection bus list, as
The steady state data quality assessment result obtained.
7. the maintaining method of power grid according to claim 1, which is characterized in that the stable state number to the electric network model
It is assessed according to quality, obtain steady state data quality assessment result and determines steady state data quality assessment value, comprising:
The quantity for counting the invalid data in the steady state data of the electric network model obtains corresponding first deduction of points value；
It counts in the bus of zero injection of the electric network model there are the quantity of unbalanced bus, show that corresponding second deducts points
Value；
The set that the valid data for the electric network model that counting statistics goes out are constituted is constituted with preset measurement estimated value
Cross entropy between set, as third deduction of points value；
Preset third initial value is successively subtracted into the first deduction of points value, the second deduction of points value and third deduction of points
Value, the steady state data quality assessment value of the difference obtained as the electric network model；
Building includes each described invalid data, including each there are unbalanced zero injection buses, and including described
The list of cross entropy, as the steady state data quality assessment result obtained.
8. a kind of maintenance system of power grid characterized by comprising
Topological relation evaluation module is assessed for the topological relation to electric network model, obtains topological relation assessment result simultaneously
Determine topological relation assessed value；
Parameter integrity degree evaluation module is assessed for the parameter integrity degree to the electric network model, obtains parameter integrity degree
Assessment result simultaneously determines parameter integrity degree assessed value；
Steady state data quality assessment modules are assessed for the steady state data quality to the electric network model, obtain stable state number
According to quality assessment result and determine steady state data quality assessment value；
Total quality evaluation module, for determining the total evaluation value of the electric network model according to the every assessed value obtained,
And when the total evaluation value is lower than preset threshold, power grid is safeguarded according to every assessment result.
9. the maintenance system of power grid according to claim 8, which is characterized in that further include:
Looped network reactance parameter evaluation module is assessed for the looped network reactance parameter to the electric network model, obtains looped network electricity
Anti- parameter evaluation result simultaneously determines looped network reactance parameter assessed value.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program, realizing the maintaining method of power grid as described in any one of claim 1 to 7 when the computer program is executed by processor
Step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568270.5A CN110276558A (en) | 2019-06-27 | 2019-06-27 | A kind of maintaining method of power grid, system and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568270.5A CN110276558A (en) | 2019-06-27 | 2019-06-27 | A kind of maintaining method of power grid, system and computer readable storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110276558A true CN110276558A (en) | 2019-09-24 |
Family
ID=67962444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910568270.5A Pending CN110276558A (en) | 2019-06-27 | 2019-06-27 | A kind of maintaining method of power grid, system and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110276558A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111210123A (en) * | 2019-12-26 | 2020-05-29 | 国网浙江省电力有限公司杭州供电公司 | Quality evaluation method for big data of operation of regulation and control cloud power grid |
| CN113433408A (en) * | 2021-06-24 | 2021-09-24 | 江苏华旭电力设计有限公司 | Method for evaluating steady-state power quality |
| CN117057666A (en) * | 2023-09-07 | 2023-11-14 | 浙江万胜智通科技有限公司 | Distribution quality evaluation method and system for digital distribution network |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201839073U (en) * | 2009-11-18 | 2011-05-18 | 吉林省电力有限公司长春供电公司 | Intelligent on-line detecting device for power grid measuring information |
| WO2014173131A1 (en) * | 2013-04-23 | 2014-10-30 | 国家电网公司 | Large power grid overall situation on-line integrated quantitative evaluation method based on response |
| CN104933631A (en) * | 2015-05-22 | 2015-09-23 | 北京科东电力控制系统有限责任公司 | Power distribution network operation online analysis and evaluation system |
-
2019
- 2019-06-27 CN CN201910568270.5A patent/CN110276558A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201839073U (en) * | 2009-11-18 | 2011-05-18 | 吉林省电力有限公司长春供电公司 | Intelligent on-line detecting device for power grid measuring information |
| WO2014173131A1 (en) * | 2013-04-23 | 2014-10-30 | 国家电网公司 | Large power grid overall situation on-line integrated quantitative evaluation method based on response |
| CN104933631A (en) * | 2015-05-22 | 2015-09-23 | 北京科东电力控制系统有限责任公司 | Power distribution network operation online analysis and evaluation system |
Non-Patent Citations (2)
| Title |
|---|
| 中国企业联合会管理现代化工作委员会编: "《国家级企业管理创新成果》", 31 March 2018, 北京：企业管理出版社 * |
| 赵旋宇等: "电力系统基础潮流数据准确度评价指标及其应用", 《南方电网技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111210123A (en) * | 2019-12-26 | 2020-05-29 | 国网浙江省电力有限公司杭州供电公司 | Quality evaluation method for big data of operation of regulation and control cloud power grid |
| CN113433408A (en) * | 2021-06-24 | 2021-09-24 | 江苏华旭电力设计有限公司 | Method for evaluating steady-state power quality |
| CN117057666A (en) * | 2023-09-07 | 2023-11-14 | 浙江万胜智通科技有限公司 | Distribution quality evaluation method and system for digital distribution network |
| CN117057666B (en) * | 2023-09-07 | 2024-02-06 | 浙江万胜智通科技有限公司 | Distribution quality evaluation method and system for digital distribution network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110276558A (en) | A kind of maintaining method of power grid, system and computer readable storage medium | |
| CN106338705B (en) | A kind of method and apparatus of the verification error for three-phase electric energy metering device | |
| CN105550499B (en) | A kind of metering device health degree computational methods | |
| CN105588995B (en) | A kind of automatic power-measuring system line loss method for detecting abnormality | |
| CN110108913B (en) | Method for calculating fault compensation electric quantity | |
| CN110888101B (en) | Method and device for diagnosing abnormity of electric energy meter | |
| CN112305492B (en) | Intelligent electric energy meter online error check accurate control system and method thereof | |
| CN105319529B (en) | A kind of electric energy meter error check system and method for calibration | |
| CN109031184A (en) | A kind of monitoring method of electric energy metering device, system and terminal device | |
| CN109298379A (en) | A kind of recognition methods of the intelligent electric meter site error exception based on data monitoring | |
| CN110244256A (en) | A kind of intelligent electric energy meter fault recognition method, device and equipment | |
| CN109270482A (en) | Voltage transformer accuracy of measuring on-line evaluation method and terminal device | |
| CN105548944B (en) | A kind of metering device thermodynamic state verification method | |
| CN111999692B (en) | Multi-table error calibration method and device | |
| Luan et al. | Energy theft detection via integrated distribution state estimation based on AMI and SCADA measurements | |
| CN109284933A (en) | A kind of electronic mutual inductor status assessing system and method based on mathematical statistics | |
| CN109507630A (en) | Wiring judgment method and system | |
| CN110221159A (en) | A kind of fault detection method, system and the equipment of the transformer based on iron core leakage field | |
| CN104991218B (en) | A kind of system for monitoring electric energy metering device operating status | |
| CN105277910A (en) | Method and system for remotely assessing reliability of power quality on-line monitoring device | |
| CN109541520A (en) | The split-phase calculating method of electric energy metering device failure wrong electric energy | |
| CN207036924U (en) | Electric energy measurement multilevel iudge device | |
| KR20200103932A (en) | Apparatus for detecting wrong of electronic watt-hour meter in advanced metering infrastructure system and method thereof | |
| CN108062616A (en) | A kind of multiplexing electric abnormality detection model with constraints | |
| CN115248906B (en) | State error identification method and system for double current transformers on outgoing line of generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190924 |
|
| RJ01 | Rejection of invention patent application after publication |