CN110470264A - The grading ring method for determining size and device of D.C. resistance divider - Google Patents
The grading ring method for determining size and device of D.C. resistance divider Download PDFInfo
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
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Abstract
The present invention provides the grading ring method for determining size and device of a kind of D.C. resistance divider, wherein, this method comprises: based on the D.C. resistance divider limit element artificial module pre-established, first round orthogonal test is executed to emulate maximum field intensity around D.C. resistance divider, obtains the inner ring radius size of first round orthogonal test corresponding optimal main grading ring and auxiliary grading ring；Based on D.C. resistance divider limit element artificial module, and the inner ring radius size of the corresponding optimal major-minor grading ring of first round orthogonal test, execute iteration orthogonal test, the inner ring radius size of corresponding major-minor grading ring when obtaining that maximum field intensity meets predetermined threshold around emulation D.C. resistance divider, as optimal grading ring size；The D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, and the inner ring radius of major-minor grading ring is experimental factor.Above-mentioned technical proposal improves the precision and efficiency that the grading ring size of D.C. resistance divider determines.
Description
Technical field
The present invention relates to technical field of ultrahigh voltage direct current, in particular to a kind of grading ring ruler of D.C. resistance divider
Very little determining method and device.
Background technique
In recent years, the HVDC transmission system of China 500kV or more is just in Fast Construction and development, direct current transportation
The voltage class of route is constantly promoted, and plays huge effect in the strong networking project in China region.With voltage class
It improves, the electric field distortion at certain positions is even more serious.Since certain end surface electric field strengths of D.C. resistance divider are higher,
Most probably occur corona discharge phenomenon in operation, then brings a systems such as corona loss, hot-spot, leakage current increase
Column malicious influences eventually lead to the accuracy of divider.And HVDC transmission line and D.C. resistance divider design
A big Important Economic technical indicator be corona loss, so the external insulation design of 500kV voltage levels direct current voltage transformer,
And if it is particularly critical to study the excessively high field strength of balance end surface.If do not taken measures around D.C. resistance divider
Even field distribution, then the electromagnetic environment problems such as corona loss, electric field distortion will occur in D.C. resistance divider.
The size of optimal settings grading ring can utmostly reduce maximum field intensity and improve electric field distortion problem,
But there are following three problems for the size of grading ring at present: first, the measures of most of selection grading ring are examinations at present
It gathers and is verified with actual tests, specifically enumerate the dimension data of several groups grading ring and carry out emulation testing, select emulation
As a result middle maximum field intensity is one group the smallest；Second, China is not directed to the unified standard and system of the size of grading ring at present
One method；Third, due to the variation of world energy sources environment and the adjustment of China's energy strategy, the pressure of energy-saving and emission-reduction is increasingly
Greatly, the accuracy requirement of electrical energy measurement is being continuously improved, this inevitable requirement further increases the measurement of high voltage direct current divider
Accuracy level.
In view of the above-mentioned problems, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of grading ring method for determining size of D.C. resistance divider, to improve direct current
The precision and efficiency that the grading ring size of resitstance voltage divider determines, this method comprises:
Based on the D.C. resistance divider limit element artificial module pre-established, it is straight to emulate to execute first round orthogonal test
Maximum field intensity around leakage resistance divider, the corresponding optimal master of optimum test result after obtaining first round orthogonal test are equal
The inner ring radius size of the inner ring radius size of pressure ring and optimal auxiliary grading ring；
Based on optimal after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
The inner ring radius size of the corresponding optimal main grading ring of test result and the inner ring radius size of optimal auxiliary grading ring execute iteration
Orthogonal test is to emulate maximum field intensity around D.C. resistance divider, until obtaining around emulation D.C. resistance divider most
The inner ring radius size of the corresponding main grading ring of test result when big electric field strength meets predetermined threshold and auxiliary grading ring it is interior
Ring radius size, the optimal grading ring size as D.C. resistance divider；
Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring
Inner ring radius and auxiliary grading ring inner ring radius be experimental factor.
The embodiment of the invention also provides a kind of grading ring size determining devices of D.C. resistance divider, straight to improve
The precision and efficiency that the grading ring size of leakage resistance divider determines, the device include:
First round optimal solution determination unit, for based on the D.C. resistance divider limit element artificial module pre-established,
First round orthogonal test is executed to emulate maximum field intensity around D.C. resistance divider, after obtaining first round orthogonal test
The inner ring radius size of the corresponding optimal main grading ring of optimum test result and the inner ring radius size of optimal auxiliary grading ring；
Optimal grading ring size determination unit, for based on the D.C. resistance divider finite element simulation mould pre-established
The inner ring radius size of the corresponding optimal main grading ring of optimum test result after type and first round orthogonal test and optimal auxiliary
The inner ring radius size of grading ring executes iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, directly
To obtain emulation D.C. resistance divider around maximum field intensity meet predetermined threshold when the corresponding master of test result press
The inner ring radius size of ring and the inner ring radius size of auxiliary grading ring, the optimal grading ring size as D.C. resistance divider；
Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring
Inner ring radius and auxiliary grading ring inner ring radius be experimental factor.
The embodiment of the invention also provides a kind of computer equipments, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, the processor realize above-mentioned D.C. resistance when executing the computer program
The grading ring method for determining size of divider.
The embodiment of the invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage
There is the computer program for the grading ring method for determining size for executing above-mentioned D.C. resistance divider.
Technical solution provided in an embodiment of the present invention passes through: firstly, limited based on the D.C. resistance divider pre-established
First simulation model executes first round orthogonal test to emulate maximum field intensity around D.C. resistance divider, obtains the first round
The inner ring radius size of the corresponding optimal main grading ring of optimum test result after orthogonal test and the inner ring of optimal auxiliary grading ring
Radius size；Secondly, after based on the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
The corresponding optimal main grading ring of optimum test result inner ring radius size and optimal auxiliary grading ring inner ring radius size, hold
Row iteration orthogonal test is to emulate maximum field intensity around D.C. resistance divider, until obtaining emulation D.C. resistance divider
It the inner ring radius size of the corresponding main grading ring of test result when surrounding maximum field intensity meets predetermined threshold and auxiliary presses
The inner ring radius size of ring, as the optimal grading ring size of D.C. resistance divider, realize quickly and easily determine it is high-precision
Degree best grading ring size, thus significantly reduce electric field strength and improve electric field distortion, farthest avoid corona loss,
Hot-spot, leakage current increase.
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 the flow diagram of the grading ring method for determining size of D.C. resistance divider in the embodiment of the present invention；
Fig. 2 is the schematic illustration of the grading ring method for determining size of D.C. resistance divider in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the grading ring size determining device of D.C. resistance divider in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Fig. 1 is the flow diagram of the grading ring method for determining size of D.C. resistance divider in the embodiment of the present invention, such as
Shown in Fig. 1, the grading ring method for determining size of the D.C. resistance divider includes the following steps:
Step 101: based on the D.C. resistance divider limit element artificial module pre-established, executing first round orthogonal test
To emulate maximum field intensity around D.C. resistance divider, the optimum test result after obtaining first round orthogonal test is corresponding
The inner ring radius size of the inner ring radius size of optimal main grading ring and optimal auxiliary grading ring；
Step 102: based on the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
The inner ring radius size (the optimal inner ring radius size of main grading ring) of the corresponding optimal main grading ring of optimum test result afterwards
With the inner ring radius size (the optimal inner ring radius size of auxiliary grading ring) of optimal auxiliary grading ring, iteration orthogonal test is executed with imitative
Maximum field intensity around true D.C. resistance divider, until obtaining maximum field intensity symbol around emulation D.C. resistance divider
The inner ring radius size of the corresponding main grading ring of test result when conjunction predetermined threshold and the inner ring radius size of auxiliary grading ring, make
For the optimal grading ring size of D.C. resistance divider；
Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring
Inner ring radius and auxiliary grading ring inner ring radius be experimental factor.
In one embodiment, the main grading ring and auxiliary grading ring are not overlapped with D.C. resistance divider ontology respectively.
With reference to the accompanying drawing 2, to the present embodiments relate to each step describe in detail.
One, the step of pre-establishing D.C. resistance divider limit element artificial module is introduced first.
When it is implemented, D.C. resistance divider limit element artificial module is established, the D.C. resistance divider finite element
Simulation model includes main grading ring and auxiliary grading ring, wherein the inner ring radius A of the auxiliary grading ring and inner ring radius B of main grading ring
As experimental factor.
Two, above-mentioned steps 101 are then introduced.
In one embodiment, based on the D.C. resistance divider limit element artificial module pre-established, the first round is executed
Optimum test knot of the orthogonal test to emulate maximum field intensity around D.C. resistance divider, after obtaining first round orthogonal test
The inner ring radius size of the corresponding optimal main grading ring of fruit and the inner ring radius size of optimal auxiliary grading ring may include:
Based on the number and number of levels of D.C. resistance divider limit element artificial module experimental factor, determine that the first round is orthogonal
The orthogonal arrage of test number (TN)；
Based on the orthogonal arrage, the test result after first round orthogonal test is analyzed using method of analysis of variance, is obtained
It the inner ring radius size of the corresponding optimal main grading ring of optimum test result after to first round orthogonal test and optimal auxiliary presses
The inner ring radius size of ring.
When it is implemented, determining the orthogonal arrage L of first round orthogonal test number based on factor number and horizontal numbern(rm),
Method of analysis of variance is analyzed first round orthogonal experiments to find out first round orthogonal test optimal solution, and direct current is improved
Hinder precision and efficiency that the grading ring size of divider determines.
In one embodiment, the number of levels of the orthogonal arrage and the number of levels of experimental factor are consistent, the columns of orthogonal arrage
Not less than the number of experimental factor.
When it is implemented, execute first round orthogonal test to emulate maximum field intensity around D.C. resistance divider,
In, the objective function of first round orthogonal test is 2 experimental factor xiFunction (i=1,2), y=f (x1,x2), wherein x1∈
(A1,A2,…,Ar), Δ Q1=| A1-A2|,x2∈(B1,B2,…,Br), Δ Q2=| B1-B2|, y is first round orthogonal test knot
Fruit, if ybestFor the optimal result after first round orthogonal test, corresponding each factor (inner ring radius size of optimal main grading ring
With the inner ring radius size of optimal auxiliary grading ring) value are as follows: x1best,x2best, r is the horizontal number of each factor, and the first round is orthogonal
Testing difference between the level of i-th of factor is Δ Qi。
Three, above-mentioned steps 102 are then introduced.
In one embodiment, based on the D.C. resistance divider limit element artificial module pre-established and the first round
The inner ring radius size of the corresponding optimal main grading ring of optimum test result after orthogonal test and the inner ring of optimal auxiliary grading ring
Radius size executes iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, until obtaining emulation directly
The inner ring radius of the corresponding main grading ring of test result when maximum field intensity meets predetermined threshold around leakage resistance divider
The inner ring radius size of size and auxiliary grading ring may include: as the optimal grading ring size of D.C. resistance divider
Based on optimal after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
The inner ring radius size of the corresponding optimal main grading ring of test result and the inner ring radius size of optimal auxiliary grading ring execute iteration
Orthogonal test obtains the corresponding test result of more wheel orthogonal tests to emulate maximum field intensity around D.C. resistance divider；
The test result is taken into opposite number, obtains the test result for taking opposite number；
Using method of analysis of variance, the test result for taking opposite number is analyzed, obtains emulation D.C. resistance partial pressure
The inner ring radius size of the corresponding main grading ring of test result when maximum field intensity meets predetermined threshold around device and it is auxiliary
The inner ring radius size of pressure ring, the optimal grading ring size as D.C. resistance divider.
When it is implemented, taking opposite number with maximizing test result, method of analysis of variance divides test result
Analysis improves precision and efficiency that the grading ring size of D.C. resistance divider determines to find out orthogonal test optimal solution.
In one embodiment, based on the D.C. resistance divider limit element artificial module pre-established and the first round
The inner ring radius size of the corresponding optimal main grading ring of optimum test result after orthogonal test and the inner ring of optimal auxiliary grading ring
Radius size executes iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, until obtaining emulation directly
The inner ring radius of the corresponding main grading ring of test result when maximum field intensity meets predetermined threshold around leakage resistance divider
The inner ring radius size of size and auxiliary grading ring may include: as the optimal grading ring size of D.C. resistance divider
Based on optimal after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
The inner ring radius size of the corresponding optimal main grading ring of test result and the inner ring radius size of optimal auxiliary grading ring execute at least
Iteration orthogonal test to be three times to emulate maximum field intensity around D.C. resistance divider, until obtaining last wheel and reciprocal the
The corresponding master of test result when difference between the maximum field intensity of two wheel orthogonal test emulation is less than preset range presses
The inner ring radius size of ring and the inner ring radius size of auxiliary grading ring, the optimal grading ring size as D.C. resistance divider.
When it is implemented, 3 iteration orthogonal tests are at least carried out, so that last wheel and wheel orthogonal test second from the bottom are imitative
Genuine maximum field strength difference is less than preset range, improve precision that the grading ring size of D.C. resistance divider determines and
Efficiency.
When it is implemented, execute iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, until
Maximum field intensity meets predetermined threshold around the emulation D.C. resistance divider, the auxiliary grading ring of experimental factor at this time it is interior
The size of the inner ring radius B of ring radius A and main grading ring is optimal size, wherein the objective function of iteration are as follows: y '=f (x '1,
x′2,…x′n), wherein x '1∈(A′1,A′2,…,A′r), Δ Q '1=| A '1-A′2|,x′2∈(B′1,B′2,…,B′r), Δ Q '2
=| B '1-B′2|,| ε | < Δ Q 'i, Δ Q 'iFor the iteration step length of iteration orthogonal test, i.e.,
Difference between the level of i-th of factor of a new round, Δ Q 'i=μ Δ Qi(μ≤1), wherein μ is iteration coefficient, and ε is deviation ratio.
When it is implemented, experimental factor is gone back in addition to including the inner ring radius of main grading ring and the inner ring radius of auxiliary grading ring
It may include other factors, such as above-mentioned x 'i... .x 'nDeng.
When it is implemented, for a further understanding of the present invention, in one embodiment, as shown in Fig. 2, the present invention is used for
Around 500kV D.C. resistance standard voltage divider in the solution of grading ring optimum size.If 500kV D.C. resistance standard voltage divider week
It encloses and grading ring is not installed, then maximum field intensity is 4212.5V/mm around it.Ensure that maximum field intensity is most around divider
May it is low, so around divider maximum field intensity size, it is the smaller the better.ANSYS in Fig. 2 represents ANSYS software: being
Large-scale general finite element analysis (FEA) software that ANSYS company, the U.S. develops.
It include 2 design variables the present embodiment provides method, i.e. 2 factors specifically include: the inner ring radius of auxiliary grading ring
A, the inner ring radius B of main grading ring.Due to using etc. repeat the calculating of test, to repeat test simpler, convenient compared to not equal,
And wait repetitions test higher compared to not equal test accuracy that repeats, so the embodiment of the present invention uses etc. and to repeat to test, therefore give
Each experimental factor has taken the differences such as 3, i.e., three levels, i.e. r=3, the value of each variable are respectively Ai、Bi, then in this implementation
I value is 1~r in example, as shown in table 1 below.It is Δ Q, respectively Δ Q that the first round, which tests the difference that each level takes every time,A=| A1-
A2|=| 280-290 |=10, Δ QB=| B1-B2|=10, specific value is as shown in table 1.
1 first round of table iteration-each variable of orthogonal test value
When it is implemented, test number (TN) can be effectively reduced with orthogonal arrage come contrived experiment.Orthogonal arrage Ln(rm) selection master
It to be determined by factor number and horizontal number, the principle selected is consistent with the number of levels of factor for the number of levels r of orthogonal arrage, orthogonal
The columns of table cannot be less than the number of factor.In orthogonal arrage, n=9, r=3, m=2, wherein m is experimental factor number, and n is positive
Hand over element number in table.
When it is implemented, determining that optimal grading ring size makes due to needing to find minimum value in the embodiment of the present invention
Maximum field intensity reduces around divider, analyzes for convenience, test result is taken opposite number, becomes maximizing.Make
Experimental result is analyzed with method of analysis of variance, whether judging that design variable (experimental factor) influences significant to test result,
Find out epicycle test optimal solution.Following values: K is calculated firstij、Sj、ST、
Wherein, KijFor upper i-th horizontal calculated result summation of jth column；For sum-total average, wherein t is jth column
The number that upper variable i occurs；SjFor the sum of square of deviations of jth column factor；Interactive sum of square of deviations is equal to corresponding two
The sum of sum of square of deviations of column；STFor the square sum of total departure for calculating test result, wherein T is the summation of all test results,
It is the average value of all test result summations；For it is each side and.
Calculate ST、Sj、SA×BFreedom degree, freedom degree is respectively fT、fjAnd fA×B, fT=n-1, fj=r-1, fA×B=fA×
fB=(r-1) (r-1).
In order to parse orthogonal experiments with method of analysis of variance, need to construct test statistics:
Wherein, SeFor error sum of squares, that is, the sum of square of deviations for all blank columns of summing,
feIt is error sum of squares SeFreedom degree.
fe=fTThe sum of the freedom degree of each column (each factor and each reciprocation),
Point following two situation is needed when constructing test statistics:
Situation one: if respectively arrangeThe step of after then continuing directly to；
Situation two: if respectively arrangeThe influence of specification error column may be bigger than the influence of certain column, then needs
The S that these are arrangedjAdd up and and SeSummation remembers that symbol is as new error sum of squaresThe freedom degree of these column is also wanted
Phase adduction and feSummation remembers that symbol is as new error column freedom degreeThe new test statistics constructed at this time is following formula.
IfIt is believed that the shadow of the factors on test result
It rings than more significant, otherwise it is believed that the influence of the factors on test result is less significant.Test result of embodiment of the present invention yiAnd
Calculate resulting T, Kij、Sj、Se、fe、Deng insert table in, as a result retain a decimal.
Calculate each Fj, list that variance analysis is as shown in table 2, and poor F distribution table is faced with a F value with the F distribution table checked in
Dividing value each variable compared to known to influences the significance degree of result, ifThen think the factors on test knot
Fruit has a significant impact, and conspicuousness is strong to be indicated with No. *.
2 first round of table iteration-orthogonal test analysis of variance table
Orthogonal test may not be able to fully meet engine request, and possible maximum field intensity, which has been still greater than, has stage fright
By force, it is possible to using orthogonal test-iterative method near the optimum producting condition that previous step acquires iteration, more subtly draw
Divide factor level, iteration is until meeting engine request.In present case, iteration is in test combinations, A3=300mm, B2=
150mm.The difference of second wheel each factor level of orthogonal test is denoted as Δ Q 'A、ΔQ′B, take Δ Q ' respectivelyA=| A '1-A′2|=|
294-299 |=5, Δ Q 'B=| B '1-B′2| each horizontal specific value of the=5, second wheel iteration is as shown in table 3.Calculate the same first round
Orthogonal test obtains the second wheel iteration-orthogonal test analysis of variance table 4.
The value of the wheel each variable of iteration of table 3 second
Table 4 second takes turns iteration-orthogonal test analysis of variance table
Second wheel iteration-orthogonal experiments of analysis are it can be found that this time test result is generally speaking more orthogonal than the first round
The experimental result of test method(s) is more excellent, falls below 820.719mm/V by the maximum field intensity around divider after this iteration,
A possibility that corona discharge occurs becomes smaller, and divider accuracy of measurement will be promoted.
The grading ring method for determining size of D.C. resistance divider provided in an embodiment of the present invention is that one kind approaches optimal value
Method, the algorithm can be applied not only to solve 500kV D.C. resistance standard voltage divider around grading ring size and installation position
On confidence breath, the grading ring that can also be applied to other voltage class divider is designed, or is related to applied to electrical engineering field
It is other need on the problem of approaching optimal value, which, which embodies, electrically intersects and merges with mathematical statistics field, hence it is evident that
It shortens and solves the time.
Based on the same inventive concept, a kind of grading ring size of D.C. resistance divider is additionally provided in the embodiment of the present invention
Determining device, as described in the following examples.It is solved the problems, such as due to the grading ring size determining device of D.C. resistance divider
Principle is similar to the grading ring method for determining size of D.C. resistance divider, therefore the grading ring size of D.C. resistance divider is true
Determine device implementation may refer to D.C. resistance divider grading ring method for determining size implementation, it is no longer superfluous to repeat place
It states.Used below, the combination of the software and/or hardware of predetermined function may be implemented in term " unit " or " module ".To the greatest extent
Device described in pipe following embodiment is preferably realized with software, but the combined reality of hardware or software and hardware
Now and may and it be contemplated.
Fig. 3 is the structural schematic diagram of the grading ring size determining device of D.C. resistance divider in the embodiment of the present invention, such as
Shown in Fig. 3, which includes:
First round optimal solution determination unit 01, for based on the D.C. resistance divider finite element simulation mould pre-established
Type executes first round orthogonal test to emulate maximum field intensity around D.C. resistance divider, obtains first round orthogonal test
The inner ring radius size of the corresponding optimal main grading ring of optimum test result afterwards and the inner ring radius size of optimal auxiliary grading ring；
Optimal grading ring size determination unit 02, for based on the D.C. resistance divider finite element simulation mould pre-established
The inner ring radius size of the corresponding optimal main grading ring of optimum test result after type and first round orthogonal test and optimal auxiliary
The inner ring radius size of grading ring executes iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, directly
To obtain emulation D.C. resistance divider around maximum field intensity meet predetermined threshold when the corresponding master of test result press
The inner ring radius size of ring and the inner ring radius size of auxiliary grading ring, the optimal grading ring size as D.C. resistance divider；
Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring
Inner ring radius and auxiliary grading ring inner ring radius be experimental factor.
In one embodiment, the main grading ring and auxiliary grading ring are not overlapped with D.C. resistance divider ontology respectively.
In one embodiment, the first round optimal solution determination unit specifically can be used for:
Based on the number and number of levels of D.C. resistance divider limit element artificial module experimental factor, determine that the first round is orthogonal
The orthogonal arrage of test number (TN)；
Based on the orthogonal arrage, the test result after first round orthogonal test is analyzed using method of analysis of variance, is obtained
It the inner ring radius size of the corresponding optimal main grading ring of optimum test result after to first round orthogonal test and optimal auxiliary presses
The inner ring radius size of ring.
In one embodiment, the number of levels of the orthogonal arrage and the number of levels of experimental factor are consistent, the columns of orthogonal arrage
Not less than the number of experimental factor.
In one embodiment, optimal grading ring size determination unit specifically can be used for:
Based on optimal after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
The inner ring radius size of the corresponding optimal main grading ring of test result and the inner ring radius size of optimal auxiliary grading ring execute iteration
Orthogonal test obtains the corresponding test result of more wheel orthogonal tests to emulate maximum field intensity around D.C. resistance divider；
The test result is taken into opposite number, obtains the test result for taking opposite number；
Using method of analysis of variance, the test result for taking opposite number is analyzed, obtains emulation D.C. resistance partial pressure
The inner ring radius size of the corresponding main grading ring of test result when maximum field intensity meets predetermined threshold around device and it is auxiliary
The inner ring radius size of pressure ring, the optimal grading ring size as D.C. resistance divider.
In one embodiment, optimal grading ring size determination unit specifically can be used for:
Based on optimal after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
The inner ring radius size of the corresponding optimal main grading ring of test result and the inner ring radius size of optimal auxiliary grading ring execute at least
Iteration orthogonal test to be three times to emulate maximum field intensity around D.C. resistance divider, until obtaining last wheel and reciprocal the
The corresponding master of test result when difference between the maximum field intensity of two wheel orthogonal test emulation is less than preset range presses
The inner ring radius size of ring and the inner ring radius size of auxiliary grading ring, the optimal grading ring size as D.C. resistance divider.
The embodiment of the invention also provides a kind of computer equipments, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, the processor realize above-mentioned D.C. resistance when executing the computer program
The grading ring method for determining size of divider.
The embodiment of the invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage
There is the computer program for the grading ring method for determining size for executing above-mentioned D.C. resistance divider.
The embodiment of the present invention provides the advantageous effects that reach of technical solution: realize quickly and easily determine it is high-precision
Degree best grading ring size, thus significantly reduce electric field strength and improve electric field distortion, farthest avoid corona loss,
Hot-spot, leakage current increase.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of grading ring method for determining size of D.C. resistance divider characterized by comprising
Based on the D.C. resistance divider limit element artificial module pre-established, first round orthogonal test is executed to emulate direct current
Hinder maximum field intensity around divider, the corresponding optimal main grading ring of optimum test result after obtaining first round orthogonal test
Inner ring radius size and optimal auxiliary grading ring inner ring radius size；
Based on the optimum test after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
As a result it is orthogonal to execute iteration for the inner ring radius size of corresponding optimal main grading ring and the inner ring radius size of optimal auxiliary grading ring
Test is to emulate maximum field intensity around D.C. resistance divider, until obtaining maximum electricity around emulation D.C. resistance divider
The inner ring radius size of the corresponding main grading ring of test result when field intensity meets predetermined threshold and the inner ring half of auxiliary grading ring
Diameter size, the optimal grading ring size as D.C. resistance divider；
Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring it is interior
The inner ring radius of ring radius and auxiliary grading ring is experimental factor.
2. the grading ring method for determining size of D.C. resistance divider as described in claim 1, which is characterized in that the master is equal
Pressure ring and auxiliary grading ring are not overlapped with D.C. resistance divider ontology respectively.
3. the grading ring method for determining size of D.C. resistance divider as described in claim 1, which is characterized in that based on preparatory
The D.C. resistance divider limit element artificial module of foundation executes first round orthogonal test to emulate around D.C. resistance divider
Maximum field intensity, the inner ring radius ruler of the corresponding optimal main grading ring of optimum test result after obtaining first round orthogonal test
The inner ring radius size of very little and optimal auxiliary grading ring, comprising:
Based on the number and number of levels of D.C. resistance divider limit element artificial module experimental factor, first round orthogonal test is determined
The orthogonal arrage of number；
Based on the orthogonal arrage, the test result after first round orthogonal test is analyzed using method of analysis of variance, obtains
The inner ring radius size of optimum test result corresponding optimal main grading ring after one wheel orthogonal test and optimal auxiliary grading ring
Inner ring radius size.
4. the grading ring method for determining size of D.C. resistance divider as claimed in claim 3, which is characterized in that described orthogonal
The number of levels of table and the number of levels of experimental factor are consistent, and the columns of orthogonal arrage is not less than the number of experimental factor.
5. the grading ring method for determining size of D.C. resistance divider as described in claim 1, which is characterized in that based on preparatory
The D.C. resistance divider limit element artificial module of foundation and optimum test result after first round orthogonal test are corresponding most
The inner ring radius size of the inner ring radius size of excellent main grading ring and optimal auxiliary grading ring, it is straight to emulate to execute iteration orthogonal test
Maximum field intensity around leakage resistance divider, until obtain emulation D.C. resistance divider around maximum field intensity meet it is pre-
The inner ring radius size of the corresponding main grading ring of test result when determining threshold value and the inner ring radius size of auxiliary grading ring, as straight
The optimal grading ring size of leakage resistance divider, comprising:
Based on the optimum test after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
As a result it is orthogonal to execute iteration for the inner ring radius size of corresponding optimal main grading ring and the inner ring radius size of optimal auxiliary grading ring
Test obtains the corresponding test result of more wheel orthogonal tests to emulate maximum field intensity around D.C. resistance divider；
The test result is taken into opposite number, obtains the test result for taking opposite number；
Using method of analysis of variance, the test result for taking opposite number is analyzed, obtains emulation D.C. resistance divider week
Enclose the corresponding main grading ring of test result when maximum field intensity meets predetermined threshold inner ring radius size and auxiliary grading ring
Inner ring radius size, the optimal grading ring size as D.C. resistance divider.
6. the grading ring method for determining size of D.C. resistance divider as described in claim 1, which is characterized in that based on preparatory
The D.C. resistance divider limit element artificial module of foundation and optimum test result after first round orthogonal test are corresponding most
The inner ring radius size of the inner ring radius size of excellent main grading ring and optimal auxiliary grading ring, it is straight to emulate to execute iteration orthogonal test
Maximum field intensity around leakage resistance divider, until obtain emulation D.C. resistance divider around maximum field intensity meet it is pre-
The inner ring radius size of the corresponding main grading ring of test result when determining threshold value and the inner ring radius size of auxiliary grading ring, as straight
The optimal grading ring size of leakage resistance divider, comprising:
Based on the optimum test after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established
As a result the inner ring radius size of corresponding optimal main grading ring and the inner ring radius size of optimal auxiliary grading ring execute at least three times
Iteration orthogonal test is to emulate maximum field intensity around D.C. resistance divider, until obtaining last wheel and wheel second from the bottom
Difference between the maximum field intensity of orthogonal test emulation is less than test result corresponding main grading ring when preset range
The inner ring radius size of inner ring radius size and auxiliary grading ring, the optimal grading ring size as D.C. resistance divider.
7. a kind of grading ring size determining device of D.C. resistance divider characterized by comprising
First round optimal solution determination unit, for executing based on the D.C. resistance divider limit element artificial module pre-established
First round orthogonal test is optimal after obtaining first round orthogonal test to emulate maximum field intensity around D.C. resistance divider
The inner ring radius size of the corresponding optimal main grading ring of test result and the inner ring radius size of optimal auxiliary grading ring；
Optimal grading ring size determination unit, for based on the D.C. resistance divider limit element artificial module pre-established, with
And the corresponding optimal main grading ring of optimum test result after first round orthogonal test inner ring radius size and optimal auxiliary press
The inner ring radius size of ring executes iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, until obtaining
To the corresponding main grading ring of test result emulated when maximum field intensity around D.C. resistance divider meets predetermined threshold
The inner ring radius size of inner ring radius size and auxiliary grading ring, the optimal grading ring size as D.C. resistance divider；
Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring it is interior
The inner ring radius of ring radius and auxiliary grading ring is experimental factor.
8. the grading ring size determining device of D.C. resistance divider as claimed in claim 7, which is characterized in that described first
Wheel optimal solution determination unit is specifically used for:
Based on the number and number of levels of D.C. resistance divider limit element artificial module experimental factor, first round orthogonal test is determined
The orthogonal arrage of number；
Based on the orthogonal arrage, the test result after first round orthogonal test is analyzed using method of analysis of variance, obtains
The inner ring radius size of optimum test result corresponding optimal main grading ring after one wheel orthogonal test and optimal auxiliary grading ring
Inner ring radius size.
9. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes any side of claim 1 to 6 when executing the computer program
Method.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has perform claim
It is required that the computer program of 1 to 6 any the method.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112528534A (en) * | 2020-11-19 | 2021-03-19 | 南方电网科学研究院有限责任公司 | Method, system and device for acquiring surface maximum electric field intensity of direct current voltage divider |
| CN117828902A (en) * | 2024-03-04 | 2024-04-05 | 国网湖南省电力有限公司湘潭供电分公司 | Abnormal heating and string falling prevention method and device applied to composite insulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109408929A (en) * | 2018-10-15 | 2019-03-01 | 中国电力科学研究院有限公司 | Determine the optimum design method of high voltage direct current resistance standard voltage divider grading ring |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109408929A (en) * | 2018-10-15 | 2019-03-01 | 中国电力科学研究院有限公司 | Determine the optimum design method of high voltage direct current resistance standard voltage divider grading ring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112528534A (en) * | 2020-11-19 | 2021-03-19 | 南方电网科学研究院有限责任公司 | Method, system and device for acquiring surface maximum electric field intensity of direct current voltage divider |
| CN112528534B (en) * | 2020-11-19 | 2024-05-28 | 南方电网科学研究院有限责任公司 | Method, system and device for acquiring surface maximum electric field intensity of direct current voltage divider |
| CN117828902A (en) * | 2024-03-04 | 2024-04-05 | 国网湖南省电力有限公司湘潭供电分公司 | Abnormal heating and string falling prevention method and device applied to composite insulator |
| CN117828902B (en) * | 2024-03-04 | 2024-05-28 | 湖南防灾科技有限公司 | Abnormal heating and string falling prevention method and device applied to composite insulator |
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