CN109948193A - Interconnect the rail traction substation lightning stroke safety evaluation method of integrated ground system - Google Patents
Interconnect the rail traction substation lightning stroke safety evaluation method of integrated ground system Download PDFInfo
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Abstract
The embodiment of the present invention provides the rail traction substation lightning stroke safety evaluation method and system of a kind of interconnection integrated ground system, this method comprises: carrying out lightning impulse simulation calculation, acquisition simulation numerical calculated result to simulation model；Wherein, simulation model is that the structural parameters of the structural parameters based on rail traction substation earthing or grounding means and integrated ground system are established, and rail traction substation and integrated ground system interconnect；The simulation value of the evaluation index obtained from simulation numerical calculated result is compared with corresponding setting value, and obtains the safety evaluatio result of rail traction substation according to comparing result.The safety evaluatio result of the embodiment of the present invention is able to reflect security performance when traction substation earthing or grounding means and the interconnection of railway combined earthed system, the safety of the traction substation after having rated interconnection.
Description
Technical field
The present embodiments relate to high-speed railway fields, more particularly, to a kind of railway for interconnecting integrated ground system
Traction substation lightning stroke safety evaluation method.
Background technique
The ground connection scale of line of high-speed railway traction substation earthing or grounding means is smaller, and when individualism is difficult to hinder ground connection
Resist up to standard.1 Ω of impedance ground < of railway combined earthed system, important function are especially to draw change for rail facility along the line
The there is provided common ground of electricity.After rail traction substation and integrated ground system interconnect, the impedance ground of traction substation is down to 1
Ω hereinafter, and contact voltage, step voltage and ground potential the earth mats security parameters such as rise can be in very extensive electric resistance of soil
Meet standard requirements within the scope of rate.But after traction substation earthing or grounding means and the interconnection of integrated ground system, work as traction substation
When by being struck by lightning, the problem of how evaluating to the safety of traction substation, become urgent need to resolve.
Summary of the invention
To solve the above-mentioned problems, the embodiment of the present invention provides one kind and overcomes the above problem or at least be partially solved
State the rail traction substation lightning stroke safety evaluation method and system of the interconnection integrated ground system of problem.
According to a first aspect of the embodiments of the present invention, a kind of rail traction substation thunder interconnecting integrated ground system is provided
Safety evaluation method is hit, this method comprises: carrying out lightning impulse simulation calculation to simulation model, simulation numerical is obtained and calculates knot
Fruit；Wherein, simulation model is the structure ginseng of the structural parameters based on rail traction substation earthing or grounding means and integrated ground system
What number was established, rail traction substation and integrated ground system interconnect；The evaluation obtained from simulation numerical calculated result is referred to
Target simulation value is compared with corresponding setting value, and the safety evaluatio of rail traction substation is obtained according to comparing result
As a result.
Second aspect according to embodiments of the present invention provides a kind of rail traction substation thunder for interconnecting integrated ground system
Security Evaluation System is hit, which includes: emulation module, for carrying out lightning impulse simulation calculation to simulation model, is obtained
Simulation numerical calculated result；Wherein, simulation model is that structural parameters and synthesis based on rail traction substation earthing or grounding means connect
What the structural parameters of ground system were established, rail traction substation and integrated ground system interconnect；Evaluation module, being used for will be from emulation
The simulation value of the evaluation index obtained in numerical result is compared with corresponding setting value, and is obtained according to comparing result
The safety evaluatio result of rail traction substation.
According to a third aspect of the embodiments of the present invention, a kind of electronic equipment, including memory, processor and storage are provided
On a memory and the computer program that can run on a processor, processor is realized various such as first aspect when executing program
The rail traction substation of interconnection integrated ground system provided by any possible implementation in possible implementation
Be struck by lightning safety evaluation method.
According to a fourth aspect of the embodiments of the present invention, a kind of non-transient computer readable storage medium is provided, is deposited thereon
Computer program is contained, is realized in the various possible implementations such as first aspect when which is executed by processor
The rail traction substation lightning stroke safety evaluatio side of interconnection integrated ground system provided by any possible implementation
Method.
The rail traction substation lightning stroke safety evaluation method of interconnection integrated ground system provided in an embodiment of the present invention
And system obtains simulation numerical calculated result by carrying out lightning impulse simulation calculation to simulation model；And it will be from simulation numerical
The simulation value of the evaluation index obtained in calculated result is compared with corresponding setting value, and obtains railway according to comparing result
The safety evaluatio of traction substation as a result, the safety evaluatio result to be able to reflect traction substation earthing or grounding means comprehensive with railway
Close security performance when earthed system interconnection, the safety of the traction substation after having rated interconnection.
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 evident 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
Other attached drawings are obtained according to these figures.
Fig. 1 is the rail traction substation lightning stroke safety evaluatio of interconnection integrated ground system provided in an embodiment of the present invention
The flow diagram of method；
Fig. 2 be another embodiment of the present invention provides interconnection integrated ground system rail traction substation be struck by lightning safety
The flow diagram of evaluation method；
Fig. 3 is the rail traction substation lightning stroke safety evaluatio of interconnection integrated ground system provided in an embodiment of the present invention
The structural schematic diagram of system；
Fig. 4 is the entity structure schematic diagram of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
In order to which the accumulative safety of the rail traction substation to interconnection integrated ground system is evaluated, the present invention is implemented
Example provides a kind of rail traction substation lightning stroke safety evaluation method for interconnecting integrated ground system, referring to Fig. 1, this method packet
It includes:
Step 10 carries out lightning impulse simulation calculation to simulation model, obtains simulation numerical calculated result；Wherein, it emulates
Model is that the structural parameters of structural parameters and integrated ground system based on rail traction substation earthing or grounding means are established, railway
Traction substation and integrated ground system interconnect.
Wherein, before step 10, simulation model can be first established, which is traction substation interconnection integrated ground
The Simulation Calculation of system.The simulation model is specifically to be based on traction substation ground connection model and railway combined earthed system mould
What the model of type these two aspects obtained, and the traction substation and integrated ground system should be interconnections；In establishment process
Specifically using the structural parameters of high-speed railway traction substation earthing or grounding means and the knot of high-speed railway integrated ground system
Structure parameter is established.In step 10, imitative to this by the simulation model being arranged certain simulated conditions or simulation parameter
True mode carries out lightning impulse simulation calculation, obtains the simulation numerical calculated result of simulation model output.
Step 20 carries out the simulation value of the evaluation index obtained from simulation numerical calculated result with corresponding setting value
Comparison, and according to the safety evaluatio result of comparing result acquisition rail traction substation.
Specifically, it after obtaining simulation numerical calculated result in step 10, can be obtained from simulation numerical calculated result
Obtain the simulation value of evaluation index.Wherein, evaluation index is the parameter for evaluating the safety of rail traction substation, and evaluation refers to
Mark can reflect that traction substation is interconnected to synthesis and connects for one or more, each evaluation index from certain level
Security performance after ground system.Above-mentioned evaluation index includes but is not limited to one of following parameter or a variety of: impulse grounding electricity
Resistance R, integrated ground system power amplitude attenuation factor alpha, integrated ground system conductor maximum potential liter are flowed to by traction substation
Attenuation coefficient β and integrated ground system conductor potential rise section coverage length L.In addition, before step 20, it can be preparatory
The setting value of evaluation index is set, when which reflects that traction substation is safe condition, the value of the evaluation index should be located
In numberical range.Therefore, in step 20, simulation value and setting value can be compared, is based on comparing result
Obtain the safety evaluatio result of rail traction substation.For example, the comparing result is greater than the set value for simulation value, and the setting
Value is the rail traction substation lower corresponding maximum value of the evaluation index in a safe condition, then the peace of the rail traction substation
Full property evaluation result is unqualified.
In addition, if safety evaluatio result in step 20 be it is unqualified, after step 20, can be to integrated ground
System and/or rail traction substation take relevant safety measure, and re-execute above-mentioned steps after completing safety measure
10 and 20, until safety evaluatio result is qualification.
The rail traction substation lightning stroke safety evaluation method of interconnection integrated ground system provided in an embodiment of the present invention,
By carrying out lightning impulse simulation calculation to simulation model, simulation numerical calculated result is obtained；And knot will be calculated from simulation numerical
The simulation value of the evaluation index obtained in fruit is compared with corresponding setting value, and is obtained rail traction according to comparing result and become
Electricity safety evaluatio as a result, the safety evaluatio result is able to reflect traction substation earthing or grounding means and railway combined ground connection
Security performance when system interconnects, the safety of the traction substation after having rated interconnection.
Content based on the above embodiment, as a kind of alternative embodiment, evaluation index include: impulse earthed resistance R, by
Traction substation flows to the current amplitude attenuation coefficient α of integrated ground system, the conductor maximum potential liter of integrated ground system declines
Subtract at least one of the conductor potential rise section coverage length L of factor beta and integrated ground system.Above-mentioned evaluation index
It can reflect the safety for being interconnected to the traction substation of railway combined earthed system from every side.
Correspondingly, a kind of simulation value by the evaluation index obtained from simulation numerical calculated result is provided to set with corresponding
Definite value compares, and the method for the safety evaluatio result according to comparing result acquisition rail traction substation, including but not
It is limited to following steps 201 and step 202:
Step 201 respectively compares the simulation value of each single item evaluation index with corresponding setting value, obtains each single item
The corresponding comparing result of evaluation index.
Specifically, it due to the one or more that evaluation index includes aforementioned four evaluation index, is respectively necessary for being every
A kind of evaluation index is arranged corresponding setting value, and by the simulation value of each evaluation index and the preset evaluation index
Setting value is compared, to obtain the corresponding comparing result of each evaluation index.
If the comparing result of step 202, each single item evaluation index is all satisfied corresponding safety conditions, rail traction becomes
The safety evaluatio result of electric institute is qualified.
It should be noted that only just can determine that rail traction when each single item evaluation index all meets safety conditions
The safety evaluatio result of electric substation is qualification；In other words, as long as any one evaluation index is unsatisfactory for corresponding safety conditions,
Then determine that the safety evaluatio result of rail traction substation is unqualified.
The embodiment of the present invention can be interconnected to railway by thoroughly evaluating from every side by selecting a plurality of types of evaluation indexes
The safety of the traction substation of integrated ground system, and corresponding safety is all satisfied in the comparing result of each evaluation index
The safety evaluatio result of rail traction substation is just confirmed as qualification when condition, ensure that the accurate of safety evaluatio result
Property.
Content based on the above embodiment, as a kind of alternative embodiment, evaluation index is impulse earthed resistance, and evaluation refers to
Target setting value is maximum impact ground resistance；Correspondingly, the corresponding safety conditions of evaluation index are impulse earthed resistance
Simulation value is not more than maximum ground resistance.Specifically, if impulse earthed resistance R is no more than the maximum impact ground resistance set
Rmax, then R meets safety conditions.
Content based on the above embodiment, as a kind of alternative embodiment, evaluation index is current amplitude attenuation coefficient, is commented
The setting value of valence index is maximum current amplitude attenuation coefficient, and current amplitude attenuation coefficient is obtained by following formula:
α=(I1max-I2max)/I1max
In formula, α is current amplitude attenuation coefficient, I1maxFor the amplitude of lightning current for injecting traction substation, I2maxBecome for traction
Electric institute's earthing or grounding means flows to integrated ground system power amplitude；
Correspondingly, the corresponding safety conditions of evaluation index are the simulation value α of current amplitude attenuation coefficient no more than maximum
Current amplitude attenuation coefficient αmax。
Wherein, current amplitude attenuation coefficient is defined as follows: flowing to integrated ground system by traction substation earthing or grounding means
Current amplitude attenuation coefficient α is the amplitude of lightning current I for injecting traction substation1maxSubtract traction substation earthing or grounding means flow to it is comprehensive
Splice grafting ground system power amplitude I2maxAfterwards divided by I1maxGained, i.e. α=(I1max-I2max)/I1max。
Content based on the above embodiment, as a kind of alternative embodiment, evaluation index is that maximum potential rises attenuation coefficient,
The setting value of evaluation index is the maximum that maximum potential rises attenuation coefficient, and maximum potential rises attenuation coefficient and obtained by following formula:
β=(U1max-U2max)/U1max
In formula, β is that maximum potential rises attenuation coefficient, U1maxFor the current potential of traction substation earthing or grounding means lightning current decanting point
Increasing degree value, U2maxFor integrated ground system conductor maximum potential liter；
Correspondingly, the corresponding safety conditions of evaluation index are that maximum potential rises the simulation value β of attenuation coefficient no more than most
The maximum β of big potential rise attenuation coefficientmax。
Wherein, maximum potential rises attenuation coefficient and is defined as follows: integrated ground system conductor maximum potential rises attenuation coefficient β
It is the potential rise amplitude U of traction substation earthing or grounding means lightning current decanting point1maxSubtract integrated ground system conductor maximum potential
Rise U2maxAfterwards divided by U1maxIt obtains, i.e. β=(U1max-U2max)/U1max。
Content based on the above embodiment, as a kind of alternative embodiment, evaluation index is the influence of conductor potential rise section
Extent length, the setting value of evaluation index are largest conductor potential rise section coverage length, and conductor potential rise section influences
Extent length is between the integrated ground system conductor minimum level that integrated ground system conductor maximum potential rises and sets rises
Integrated geophysics length；
Correspondingly, the corresponding safety conditions of evaluation index are the simulation value L of conductor potential rise section coverage length
No more than largest conductor potential rise section coverage length Lmax。
Wherein, conductor potential rise section coverage length is defined as follows: integrated ground system conductor potential rise section
Influencing length L is that integrated ground system conductor maximum potential rises U2maxWith the integrated ground system conductor minimum level liter of setting
U2minBetween integrated geophysics length.
Content based on the above embodiment, as a kind of alternative embodiment, will be calculated from simulation numerical in step 20
As a result before the simulation value of the evaluation index obtained in is compared with corresponding setting value, above-mentioned safety evaluation method is also wrapped
It includes:
Target data is extracted from simulation numerical calculated result, wherein target data includes lightning current decanting point potential rise
The conductor current potential of data, the current data that integrated ground system is flowed to by traction substation earthing or grounding means and integrated ground system
Rise data；
Data Analysis Services are carried out to target data, obtain the simulation value of each evaluation index.
For the rail traction substation lightning stroke safety to above-mentioned interconnection integrated ground system provided in an embodiment of the present invention
Property evaluation method be illustrated, be illustrated below in conjunction with Fig. 2, the evaluation method citing specifically comprises the following steps:
Step 1: establishing Simulation Calculation；It is i.e. comprehensive according to traction substation grounding device constructions parameter and high-speed railway
Earthed system structural parameters establish traction substation interconnection integrated ground system emulation computation model；
Step 2: simulation numerical calculates；Lightning current punching is carried out to traction substation interconnection integrated ground system simulation model
Simulation calculation is hit, simulation numerical calculated result is obtained；
Step 3: extracting simulation calculation data；Lightning current decanting point potential rise number is extracted i.e. from simulation numerical calculated result
According to, integrated ground system power data and integrated ground system conductor potential rise data are flowed to by traction substation earthing or grounding means；
Step 4: data processing；Analysis handles to obtain impulse earthed resistance R, by leading i.e. from the simulation calculation data of extraction
Draw electric substation and flows to integrated ground system power amplitude attenuation factor alpha, integrated ground system conductor maximum potential liter attenuation coefficient β
With integrated ground system conductor potential rise section coverage L；
Step 5: safety evaluatio；I.e. by declining to impulse earthed resistance R, current amplitude attenuation coefficient α, maximum potential liter
Subtract factor beta, potential rise section coverage L is compared with each preset value, obtain safety evaluatio result；
Step 6: if safety evaluatio is unqualified, also needing to take other related measures, then restart from step 1, directly
To safety evaluatio qualification.
Content based on the above embodiment, the embodiment of the invention provides a kind of rail tractions for interconnecting integrated ground system
Electric substation's lightning stroke Security Evaluation System, the rail traction substation lightning stroke Security Evaluation System of the interconnection integrated ground system
For executing the rail traction substation lightning stroke safety evaluation method of the interconnection integrated ground system in above method embodiment.
Referring to Fig. 3, which includes: emulation module 301 and evaluation module 302；Wherein, emulation module 301, for simulation model into
Row lightning impulse simulation calculation obtains simulation numerical calculated result；Wherein, simulation model is grounded based on rail traction substation
What the structural parameters of device and the structural parameters of integrated ground system were established, rail traction substation and integrated ground system are mutual
Connection；Evaluation module 302, the simulation value of the evaluation index for will be obtained from simulation numerical calculated result and corresponding setting value
It compares, and obtains the safety evaluatio result of rail traction substation according to comparing result.
Specifically, emulation module 301 can first establish simulation model, which is traction substation interconnection integrated ground
The Simulation Calculation of system.Emulation module 301 is right by the simulation model being arranged certain simulated conditions or simulation parameter
The simulation model carries out lightning impulse simulation calculation, obtains the simulation numerical calculated result of simulation model output.Evaluation module
302 can obtain the simulation value of evaluation index from simulation numerical calculated result.Wherein, evaluation index is led for evaluating railway
Draw the parameter of the safety of electric substation, evaluation index can be one or more, each evaluation index can be from certain layer
Reflect that traction substation is interconnected to the security performance after integrated ground system on face.Evaluation module 302 can also preset evaluation
The setting value of index, when which reflects that traction substation is safe condition, numerical value that the value of the evaluation index should belong to
Range.
The rail traction substation lightning stroke Security Evaluation System of interconnection integrated ground system provided in an embodiment of the present invention,
By carrying out lightning impulse simulation calculation to simulation model, simulation numerical calculated result is obtained；And knot will be calculated from simulation numerical
The simulation value of the evaluation index obtained in fruit is compared with corresponding setting value, and is obtained rail traction according to comparing result and become
Electricity safety evaluatio as a result, the safety evaluatio result is able to reflect traction substation earthing or grounding means and railway combined ground connection
Security performance when system interconnects, the safety of the traction substation after having rated interconnection.
The embodiment of the invention provides a kind of electronic equipment, as shown in figure 4, the equipment includes: processor (processor)
401, communication interface (Communications Interface) 402, memory (memory) 403 and communication bus 404,
In, processor 401, communication interface 402, memory 403 completes mutual communication by communication bus 404.Processor 401 can
To call the computer program that can be run on memory 403 and on processor 401, to execute the mutual of the various embodiments described above offer
Join the rail traction substation lightning stroke safety evaluation method of integrated ground system, for example, thunder and lightning is carried out to simulation model
Impact Simulation calculates, and obtains simulation numerical calculated result；Wherein, simulation model is based on rail traction substation earthing or grounding means
What structural parameters and the structural parameters of integrated ground system were established, rail traction substation and integrated ground system interconnect；It will be from
The simulation value of the evaluation index obtained in simulation numerical calculated result is compared with corresponding setting value, and according to comparing result
Obtain the safety evaluatio result of rail traction substation.
In addition, the logical order in above-mentioned memory 403 can be realized by way of SFU software functional unit and conduct
Independent product when selling or using, can store in a computer readable storage medium.Based on this understanding, originally
Substantially the part of the part that contributes to existing technology or the technical solution can be in other words for the technical solution of invention
The form of software product embodies, which is stored in a storage medium, including some instructions to
So that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation of the present invention
The all or part of the steps of example method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
The embodiment of the present invention also provides a kind of non-transient computer readable storage medium, is stored thereon with computer program,
The computer program is implemented to carry out the railway of the interconnection integrated ground system of the various embodiments described above offer when being executed by processor
Traction substation lightning stroke safety evaluation method, for example, lightning impulse simulation calculation is carried out to simulation model, is emulated
Numerical result；Wherein, simulation model is the structural parameters based on rail traction substation earthing or grounding means and integrated ground system
What the structural parameters of system were established, rail traction substation and integrated ground system interconnect；It will be obtained from simulation numerical calculated result
The simulation value of the evaluation index taken is compared with corresponding setting value, and obtains rail traction substation according to comparing result
Safety evaluatio result.
The embodiments such as electronic equipment described above are only schematical, wherein unit as illustrated by the separation member
It may or may not be physically separated, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Certain Part Methods of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
- The safety evaluation method 1. a kind of rail traction substation for interconnecting integrated ground system is struck by lightning characterized by comprisingLightning impulse simulation calculation is carried out to simulation model, obtains simulation numerical calculated result；Wherein, the simulation model is base It is established in the structural parameters of rail traction substation earthing or grounding means and the structural parameters of integrated ground system, the rail traction Electric substation and the integrated ground system interconnect；The simulation value of the evaluation index obtained from the simulation numerical calculated result is compared with corresponding setting value, and The safety evaluatio result of the rail traction substation is obtained according to comparing result.
- 2. the method according to claim 1, wherein the evaluation index includes: impulse earthed resistance, by described Traction substation flows to the maximum electricity of conductor of the current amplitude attenuation coefficient of the integrated ground system, the integrated ground system Position rises at least one of the conductor potential rise section coverage length of attenuation coefficient and the integrated ground system；Correspondingly, the simulation value by the evaluation index obtained from the simulation numerical calculated result and corresponding setting value It compares, and obtains the safety evaluatio result of the rail traction substation according to comparing result, comprising:The simulation value of evaluation index described in each single item is compared with corresponding setting value respectively, obtains and is evaluated described in each single item The corresponding comparing result of index；If the comparing result of evaluation index described in each single item is all satisfied corresponding safety conditions, the rail traction substation Safety evaluatio result be qualification.
- 3. according to the method described in claim 2, it is characterized in that, the evaluation index is impulse earthed resistance, the evaluation The setting value of index is maximum impact ground resistance；Correspondingly, the corresponding safety conditions of the evaluation index are the impact The simulation value of ground resistance is no more than the maximum ground resistance.
- 4. according to the method described in claim 2, it is characterized in that, the evaluation index be the current amplitude attenuation coefficient, The setting value of the evaluation index is maximum current amplitude attenuation coefficient, and the current amplitude attenuation coefficient is obtained by following formula:α=(I1max-I2max)/I1maxIn formula, α is current amplitude attenuation coefficient, I1maxFor the amplitude of lightning current for injecting traction substation, I2maxFor traction substation Earthing or grounding means flows to integrated ground system power amplitude；Correspondingly, the corresponding safety conditions of the evaluation index are not more than institute for the simulation value of the current amplitude attenuation coefficient State maximum current amplitude attenuation coefficient.
- 5. according to the method described in claim 2, it is characterized in that, the evaluation index is that the maximum potential rises decaying system Number, the setting value of the evaluation index are the maximum that maximum potential rises attenuation coefficient, and it is logical that the maximum potential rises attenuation coefficient Cross following formula acquisition:β=(U1max-U2max)/U1maxIn formula, β is that maximum potential rises attenuation coefficient, U1maxFor the current potential increasing degree of traction substation earthing or grounding means lightning current decanting point Value, U2maxFor integrated ground system conductor maximum potential liter；Correspondingly, the corresponding safety conditions of the evaluation index are that the simulation value of maximum potential liter attenuation coefficient is not more than The maximum potential rises the maximum of attenuation coefficient.
- 6. according to the method described in claim 2, it is characterized in that, the evaluation index is conductor potential rise section influence Extent length, the setting value of the evaluation index are largest conductor potential rise section coverage length, the conductor potential rise Section coverage length is the integrated ground system conductor minimum level that integrated ground system conductor maximum potential rises and sets Integrated geophysics length between rising；Correspondingly, the corresponding safety conditions of the evaluation index are the emulation of the conductor potential rise section coverage length Value is not more than the largest conductor potential rise section coverage length.
- 7. according to the method described in claim 2, it is characterized in that, the evaluation that will be obtained from the simulation numerical calculated result Before the simulation value of index is compared with corresponding setting value, further includes:Target data is extracted from the simulation numerical calculated result, wherein the target data includes lightning current decanting point electricity Position rises data, flows to the current data of the integrated ground system by the traction substation earthing or grounding means and the synthesis connects The conductor potential rise data of ground system；Data Analysis Services are carried out to the target data, obtain the simulation value of each evaluation index.
- The Security Evaluation System 8. a kind of rail traction substation for interconnecting integrated ground system is struck by lightning characterized by comprisingEmulation module obtains simulation numerical calculated result for carrying out lightning impulse simulation calculation to simulation model；Wherein, institute State the structural parameters foundation that simulation model is the structural parameters based on rail traction substation earthing or grounding means and integrated ground system , the rail traction substation and the integrated ground system interconnect；Evaluation module, the simulation value of the evaluation index for will be obtained from the simulation numerical calculated result and corresponding setting Value compares, and the safety evaluatio result of the rail traction substation is obtained according to comparing result.
- 9. a kind of electronic equipment including memory, processor and stores the calculating that can be run on a memory and on a processor Machine program, which is characterized in that the processor realizes that interconnection is comprehensive as described in any one of claim 1 to 7 when executing described program The step of closing the rail traction substation lightning stroke safety evaluation method of earthed system.
- 10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer The rail traction power transformation that integrated ground system is interconnected as described in any one of claim 1 to 7 is realized when program is executed by processor The step of be struck by lightning safety evaluation method.
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| CN113514774A (en) * | 2021-08-09 | 2021-10-19 | 珠海万力达电气自动化有限公司 | Method and device for judging unstable operation of railway interconnected power supply |
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| US20110040483A1 (en) * | 2009-08-17 | 2011-02-17 | Aws Convergence Technologies, Inc. | Method and Apparatus for Detecting Lightning Activity |
| CN104573267A (en) * | 2015-01-26 | 2015-04-29 | 国家电网公司 | Simulation method for assessing high voltage transformer substation line incoming segment lightning safety |
| CN104657618A (en) * | 2015-03-06 | 2015-05-27 | 南车株洲电力机车研究所有限公司 | Splitting fault modeling method for traction substations and splitting voltage determining method |
| CN105045974A (en) * | 2015-07-01 | 2015-11-11 | 北京科东电力控制系统有限责任公司 | Method for lightning protection measure simulation of HUV transformer |
| CN107609208A (en) * | 2017-07-25 | 2018-01-19 | 西南交通大学 | A kind of traction network modeling method of meter and tunnel road integrated ground system architecture |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113514774A (en) * | 2021-08-09 | 2021-10-19 | 珠海万力达电气自动化有限公司 | Method and device for judging unstable operation of railway interconnected power supply |
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