阅读说明：本技术 直流电阻分压器的均压环尺寸及位置确定方法及装置 (The grading ring size and location of D.C. resistance divider determine method and device ) 是由 高帅 赵林 徐占河 张烁 袁瑞铭 刘影 易忠林 殷庆铎 李文文 燕凯 李海臣 于 2019-09-11 设计创作，主要内容包括：本发明提供一种直流电阻分压器的均压环尺寸及位置确定方法及装置,其中,该方法包括：基于预先建立的直流电阻分压器有限元仿真模型,执行第一轮正交试验以仿真直流电阻分压器周围最大电场强度,得到第一轮正交试验对应的主均压环的最优内环半径尺寸和位置信息,以及辅均压环的最优内环半径尺寸和位置信息；基于该仿真模型,以及第一轮正交试验对应的最优尺寸和位置信息,执行迭代正交试验,直到得到仿真直流电阻分压器周围最大电场强度符合预定阈值时对应的最优均压环尺寸即位置；该直流电阻分压器有限元仿真模型包括主均压环和辅均压环。上述技术方案提高了直流电阻分压器的均压环尺寸及位置确定的精度和效率。(The grading ring size and location that the present invention provides a kind of D.C. resistance divider determine method and device, 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, obtain the optimal inner ring radius size of the corresponding main grading ring of first round orthogonal test and the optimal inner ring radius size and location information of location information and auxiliary grading ring；Based on the simulation model and the corresponding optimal size of first round orthogonal test and location information, iteration orthogonal test is executed, corresponding optimal grading ring size i.e. position when obtaining that maximum field intensity meets predetermined threshold around emulation D.C. resistance divider；The D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring.Above-mentioned technical proposal improves the precision and efficiency that the grading ring size and location of D.C. resistance divider determine.)

1. a kind of grading ring size and location of D.C. resistance divider determine method 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 Maximum field intensity around divider is hindered, the corresponding main grading ring of optimum test result after obtaining first round orthogonal test is most The optimal inner ring radius size and optimal location information of excellent inner ring radius size and optimal location information and auxiliary grading ring；

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 optimal inner ring radius size and optimal location information of corresponding main grading ring and the optimal inner ring radius of auxiliary grading ring Size and optimal location information, execute iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, until Obtain the corresponding main grading ring of test result when maximum field intensity around emulation D.C. resistance divider meets predetermined threshold Inner ring radius size and location information and auxiliary grading ring inner ring radius size and location information, as D.C. resistance point The grading ring optimal size of depressor and position；

Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring it is interior Ring radius, the location information of main grading ring, the inner ring radius of auxiliary grading ring and the location information of auxiliary grading ring are experimental factor.

2. the grading ring size and location of D.C. resistance divider as described in claim 1 determine method, which is characterized in that institute The location information for stating main grading ring includes: distance and the main grading ring center of circle to ground of the main grading ring center of circle to symmetry axis Distance；The location information of the auxiliary grading ring includes: that the auxiliary grading ring center of circle is arrived to the distance of symmetry axis and the auxiliary grading ring center of circle The distance on ground.

3. the grading ring size and location of D.C. resistance divider as described in claim 1 determine method, which is characterized in that institute Main grading ring and auxiliary grading ring is stated not to be overlapped with D.C. resistance divider ontology respectively.

4. the grading ring size and location of D.C. resistance divider as described in claim 1 determine method, which is characterized in that base In the D.C. resistance divider limit element artificial module pre-established, first round orthogonal test is executed to emulate D.C. resistance partial pressure Maximum field intensity around device, the optimal inner ring of the corresponding main grading ring of optimum test result after obtaining first round orthogonal test The optimal inner ring radius size and optimal location information of radius size and optimal location information and 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 optimal inner ring radius size and optimal location information of the corresponding main grading ring of optimum test result after one wheel orthogonal test, with And the optimal inner ring radius size and optimal location information of auxiliary grading ring.

5. the grading ring size and location of D.C. resistance divider as claimed in claim 4 determine method, which is characterized in that institute The number of levels for stating orthogonal arrage is consistent with the number of levels of experimental factor, and the columns of orthogonal arrage is not less than the number of experimental factor.

6. the grading ring size and location of D.C. resistance divider as described in claim 1 determine method, which is characterized in that base Optimum test result pair after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established The optimal inner ring radius size of the optimal inner ring radius size and optimal location information of the main grading ring answered and auxiliary grading ring and Optimal location information executes iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, until being imitated The inner ring of the corresponding main grading ring of test result when maximum field intensity meets predetermined threshold around true D.C. resistance divider The inner ring radius size and location information of radius size and location information and auxiliary grading ring, as D.C. resistance divider Grading ring optimal size and position, comprising:

Based on the D.C. resistance divider limit element artificial module pre-established, the optimal inner ring radius size of main grading ring and most The optimal inner ring radius size and optimal location information of excellent location information and auxiliary grading ring execute iteration orthogonal test with imitative Maximum field intensity around true D.C. resistance divider obtains the corresponding test result of more wheel orthogonal tests；

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 The inner ring radius size and location information of the corresponding main grading ring of test result when maximum field intensity meets predetermined threshold are enclosed, And the inner ring radius size and location information of auxiliary grading ring, as the grading ring optimal size of D.C. resistance divider and position It sets.

7. the grading ring size and location of D.C. resistance divider as described in claim 1 determine method, which is characterized in that base Optimum test result pair after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established The optimal inner ring radius size of the optimal inner ring radius size and optimal location information of the main grading ring answered and auxiliary grading ring and Optimal location information executes iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, until being imitated The inner ring of the corresponding main grading ring of test result when maximum field intensity meets predetermined threshold around true D.C. resistance divider The inner ring radius size and location information of radius size and location information and auxiliary grading ring, as D.C. resistance divider Grading ring optimal size and position, 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 optimal inner ring radius size and optimal location information of corresponding main grading ring and the optimal inner ring radius of auxiliary grading ring Size and optimal location information, at least iteration orthogonal test is strong to emulate maximum field around D.C. resistance divider three times for execution Degree is less than predetermined model until obtaining the difference between last wheel and the maximum field intensity of wheel orthogonal test emulation second from the bottom The inner ring radius size of the corresponding main grading ring of test result when enclosing and the inner ring radius ruler of location information and auxiliary grading ring Very little and location information, as the grading ring optimal size of D.C. resistance divider and position.

8. a kind of grading ring size and location 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 optimal inner ring radius size of the corresponding main grading ring of test result and the optimal inner ring of optimal location information and auxiliary grading ring Radius size and optimal location information；

Optimal size and position determination unit, for based on the D.C. resistance divider limit element artificial module pre-established, with And optimal inner ring radius size and the optimal location letter of the corresponding main grading ring of optimum test result after first round orthogonal test The optimal inner ring radius size and optimal location information of breath and auxiliary grading ring execute iteration orthogonal test to emulate direct current Maximum field intensity around divider is hindered, meets predetermined threshold until obtaining maximum field intensity around emulation D.C. resistance divider The inner ring radius size of the corresponding main grading ring of test result when value and the inner ring radius ruler of location information and auxiliary grading ring Very little and location information, as the grading ring optimal size of D.C. resistance divider and position；

Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring it is interior Ring radius, the location information of main grading ring, the inner ring radius of auxiliary grading ring and the location information of auxiliary grading ring are experimental factor.

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 7 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 7 any the method.

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 and location 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 and its position can utmostly reduce maximum field intensity and improve electric field Aberration problems, but have following three problems for the size of grading ring at present: first, the size of most of selection grading ring at present And its location method is to try to gather to verify with actual tests, specifically enumerates the size and its position data of several groups grading ring And emulation testing is carried out, it is one group the smallest to select maximum field intensity in simulation result；Second, China is not directed to and presses at present The size of ring and its unified standard of position and unified approach；Third, variation and the war of China's energy due to world energy sources environment Slightly adjustment, the pressure of energy-saving and emission-reduction is increasing, the accuracy requirement of electrical energy measurement is being continuously improved, this inevitable requirement into The measuring accuracy that one step improves high voltage direct current divider is horizontal.

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 size and location of D.C. resistance divider to determine method, to mention The precision and efficiency that its position of the grading ring size of high D.C. resistance 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 main grading ring of optimum test result after obtaining first round orthogonal test Optimal inner ring radius size and optimal location information and the optimal inner ring radius size and optimal location of auxiliary grading ring letter Breath；

Based on optimal after the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established The optimal inner ring radius size of the corresponding main grading ring of test result and the optimal inner ring of optimal location information and auxiliary grading ring Radius size and optimal location information, execute iteration orthogonal test to emulate maximum field intensity around D.C. resistance divider, Until obtain emulation D.C. resistance divider around maximum field intensity meet predetermined threshold when the corresponding master of test result it is equal The inner ring radius size and location information of pressure ring and the inner ring radius size and location information of auxiliary grading ring, as direct current Hinder grading ring optimal size and the position of 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, the location information of the location information of main grading ring, the inner ring radius of auxiliary grading ring and auxiliary grading ring is test Factor.

The embodiment of the invention also provides a kind of grading ring size and location determining device of D.C. resistance divider, to Precision and efficiency that the grading ring size and location of D.C. resistance divider determine are improved, which includes:

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 optimal inner ring radius size and optimal location information of the corresponding main grading ring of optimum test result and auxiliary grading ring it is optimal Inner ring radius size and optimal location information；

Optimal size and position determination unit, for based on the D.C. resistance divider finite element simulation mould pre-established The optimal inner ring radius size of the corresponding main grading ring of optimum test result after type and first round orthogonal test and optimal position The optimal inner ring radius size and optimal location information of confidence breath and 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 and location information of the corresponding main grading ring of test result when determining threshold value and the inner ring half of auxiliary grading ring Diameter size and location information, as the grading ring optimal size of D.C. resistance divider and position；

Wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, main grading ring Inner ring radius, the location information of the location information of main grading ring, the inner ring radius of auxiliary grading ring and auxiliary grading ring is test 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 size and location of divider determine method.

The embodiment of the invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage There are the grading ring size and location for executing above-mentioned D.C. resistance divider to determine the computer program of method.

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 optimal inner ring radius size and optimal location information of the corresponding main grading ring of optimum test result after orthogonal test, Yi Jifu The optimal inner ring radius size and optimal location information of grading ring；Secondly, limited based on the D.C. resistance divider pre-established The optimal inner ring radius size of the corresponding main grading ring of optimum test result after first simulation model and first round orthogonal test With the optimal inner ring radius size and optimal location information of optimal location information and auxiliary grading ring, iteration orthogonal test is executed It is strong until obtaining maximum field around emulation D.C. resistance divider to emulate maximum field intensity around D.C. resistance divider The inner ring radius size and location information of the corresponding main grading ring of test result when degree meets predetermined threshold and auxiliary grading ring Inner ring radius size and location information realized simple as the grading ring optimal size of D.C. resistance divider and position High-precision best grading ring size and location are quickly determined, to significantly reduce electric field strength and improve electric field distortion, most Big degree corona loss, hot-spot, leakage current is avoided to 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 that the grading ring size and location of D.C. resistance divider in the embodiment of the present invention determine the process signal of method Figure；

Fig. 2 is that the grading ring size and location of D.C. resistance divider in the embodiment of the present invention determine not installing for method Divider surrounding electric field distribution schematic diagram when pressure ring；

Fig. 3 is that the grading ring size and location of D.C. resistance divider in the embodiment of the present invention determine that the first round of method changes Schematic diagram is emulated for the optimum producting condition of orthogonal solving method；

Fig. 4 is that the grading ring size and location of D.C. resistance divider in the embodiment of the present invention determine that the first time of method changes The optimum producting condition simulation result schematic diagram solved for orthogonal test；

Fig. 5 is the structural representation of the grading ring size and location determining device of D.C. resistance divider in the embodiment of the present invention Figure.

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 optimal inner ring radius size and optimal location information of main grading ring and the optimal inner ring radius size of auxiliary grading ring and optimal Location information；

Step 102: based on the D.C. resistance divider limit element artificial module and first round orthogonal test pre-established The optimal inner ring radius size and optimal location information of the corresponding main grading ring of optimum test result afterwards and auxiliary grading ring Optimal inner ring radius size and optimal location information execute iteration orthogonal test to emulate maximum electricity around D.C. resistance divider Field intensity, until obtaining test result correspondence when maximum field intensity meets predetermined threshold around emulation D.C. resistance divider Main grading ring inner ring radius size and location information and auxiliary grading ring inner ring radius size and location information, as The grading ring optimal size of D.C. resistance divider and position；

Its wherein, the D.C. resistance divider limit element artificial module includes main grading ring and auxiliary grading ring, and master presses The inner ring radius of ring, the location information of main grading ring, the inner ring radius of auxiliary grading ring and the location information of auxiliary grading ring are examination Test 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 Fig. 4, 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.

In one embodiment, the location information of the main grading ring includes: distance of the main grading ring center of circle to symmetry axis, And the main grading ring center of circle is to the distance on ground；The location information of the auxiliary grading ring includes: the auxiliary grading ring center of circle to symmetry axis Distance and the auxiliary grading ring center of circle to ground distance.