CN107609208A - A kind of traction network modeling method of meter and tunnel road integrated ground system architecture - Google Patents
A kind of traction network modeling method of meter and tunnel road integrated ground system architecture Download PDFInfo
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Abstract
The invention discloses a kind of meter and the traction network modeling method of tunnel road integrated ground system architecture, including：The traction current network in tunnel is drawn in the SESCAD tools interfaces of CDEGS softwares first；Secondly the initial ground impedance of each ground connection pole unit of MALZ engineering module simulation calculations is utilized；Traction networks chain model is established further according to the actual of the direct electric power system of return wire；Then the tunnel area line residual current coefficient for emulating to obtain with chain model using CDEGS softwares with extracting the line residual current coefficient set during earthing pole impedance almost unanimously for constraints, the integrated ground pole impedance of tunnel road Traction networks chain model is finally determined using alternative manner, and then completes the foundation of tunnel road Traction networks simulation model.The present invention can effectively be modeled on the basis of tunnel section integrated ground system accurate parameters are extracted to the tractive power supply system of tunnel internal.
Description
Technical field
The present invention relates to traction pessimistic concurrency control to establish field, particularly a kind of to be based on MALTAB/Simulink platforms, be applied to
Electrified railway tunnelses are interior, the traction network modeling method with return wire direct feeding system.
Background technology
At present, in view of train overvoltage, rail potential lifting, electromagnetic interference, Traction networks harmonic resonance in electric railway
The problems such as be still in the operation of bullet train, it is urgent and necessary to carry out the related fundamental research of electric railway.Its
In accurate description to electric railway traction net mathematical modeling and the accurate grasp of electric parameter be to carry out tractive power supply system
The premise of research.
Lot of domestic and international scholar is studied Traction networks mathematical modeling using more conductor propagation theories, and many scholars are not to
Different chain models is established with Supplied Catenary System, and it is humorous to be based on voltage's distribiuting, Traction networks along this simulation analysis
The common thunderbolt of wave resonance characteristic, rail potential distribution, leakage current, railway or the offline electric arc of bow net and car body electrical equipment
Deng caused by the problems such as electromagnetic interference.
Chain model combines the reality that Traction networks are the complete complex network structures being made up of plurality of transmission lines, examines
Consider such as contact net, rail, return wire, Through ground wire in Traction networks and do not add the perception and capacitive coupling shielded between layer conductor
Close, can accurately reflect the electric distribution character of Traction networks.Wherein, because Traction networks integrated ground system is both that Along Railway leads to
The earthed system of the weak current equipments such as letter, signal is an important path of traction current again, and integrated ground is considered in chain model
The accurate electric parameter of system is analysis and avoids Through ground wire and its rise of neighbouring current potential very necessary.With subgrade engineering not
Together, the electrical ground system of tunnel road is extremely complex, and parameter, which calculates, is related to steelframe or ring ground rebar, chassis ground pole etc.
The computational methods of impedance parameter.
However, the Traction networks electrical model of tunnel road has been directed to often to the topology and parameter predigesting of its integrated ground
Processing.In consideration of it, it is necessary to consider the electric of tractive power supply system complexity in the Traction networks chain model of tunnel road is established
Earthed system.
The content of the invention
The technical problems to be solved by the invention are to provide the traction of a kind of meter and tunnel road integrated ground system architecture
Network modeling method, the accurate solution of tunnel road earthing pole impedance is obtained, so as to complete the Accurate Model of Traction networks.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
The traction network modeling method of a kind of meter and tunnel road integrated ground system architecture, comprises the following steps：
Step 1：The electrical structure of integrated ground system in tunnel is analyzed, according to Through ground wire, longitudinal ground rebar, ring
Ground rebar, chassis ground net, connection reinforcing bar, horizontal line and the electric topology being interconnected to form according to actual electrical arrangement,
CURRENT DISTRIBUTION, electromagnetic field, ground connection and (the English letter of soil texture analysis software based on the exploitation of Canadian safety engineering technology company
Claim CDEGS softwares) traction current network model in tunnel is established, tunnel area line residual current coefficient primary quantity is set；
Step 2：The driving source of traction current network model in 1 built tunnel of setting steps, using frequency domain Analysis of Grounding mould
Earthing pole impedance of the block (MALZ) to combined through ground wire is extracted；
Step 3：Electrical structure analysis is carried out to the Traction networks with return wire direct-furnish mode of meter and tunnel road, used
MATLAB/Simulink builds corresponding chain model；
Step 4：The earthing pole impedance extracted using MALZ engineerings module at each tie point is substituted into the chain model of step 3
In, the line residual current coefficient of tunnel area is obtained by emulation；
Step 5：To the contact net of roadbed section and tunnel road, rail, return wire, Through ground wire associated electrical parameters
Calculated；The parameter in roadbed section is calculated using Carson formula are simplified, and the parameter of tunnel road uses Tylavsky formula
Calculate；
Step 6：The line residual current coefficient for the tunnel area that step 4 emulation is obtained resets big with CDEGS softwares
Ground reflux to product ratio is contrasted, and judges that MATLAB/Simulink chain models emulate obtained tunnel area line residual current coefficient
Whether the tunnel area line residual current coefficient that sets is approached in corresponding step 1, if so, completing building for traction current network model
It is vertical, if it is not, then performing step 2, step 3, step 4 successively again forms loop iteration, until MATLAB/Simulink chain models
Emulating the tunnel area line residual current coefficient that obtained tunnel area line residual current coefficient approximation is set in corresponding step 1 is
Only, it is finally completed the foundation of traction current network model.
Further, when driving source is set in step 2, if locomotive is located at outside tunnel, setting is relatively distant from traction power transformation
Tunnel face outside traction current electric current be input stimulus source, set close to leading at the tunnel face at traction substation
It is output drive source to draw back flow current；If locomotive is located in tunnel, it is input stimulus source to set locomotive load electric current, sets phase
It is output drive source to the traction current electric current close to the tunnel face of traction substation.
Further, the electrical structure of integrated ground system is specially in analysis tunnel in the step 1：
According to the tunnel integrated ground system electrical attachment structure section with return wire direct-furnish mode, the insertion of up-downgoing
Line is connected by a connection reinforcing bar with a longitudinal ground rebar of relevant position respectively every 100 meters, and left at the tie point
Two longitudinal ground rebar of the right side disconnects；Every a chassis distance, chassis ground pole, ring structure reinforcing bars and other longitudinal ground rebars
The ground networks of composition are connected with longitudinal ground rebar at Through ground wire existing together, and return wire is every 35 meters and ring structural steel
Muscle is connected；It is each to flow back the horizontal company of wire once every 500 meters.
Further, Traction networks chain model includes parallel element and series element in the step 3；Led as parallel more
The series element of body transmission line is every a segment distance by the equipotential transverse connecting line such as backflow network, traction substation, train
Cut Deng parallel element；According to parallel element position, traction pessimistic concurrency control is divided into the sub-network model of multiple series connection, per height
The inductive coupled and capacitive coupling of parallel multi-conductor transmission lines is included in network.
Compared with prior art, the beneficial effects of the invention are as follows：Can accurately it join in extraction tunnel section integrated ground system
The tractive power supply system of tunnel internal is effectively modeled on the basis of number.By becoming more meticulous for tunnel road tractive power supply system
Design, provide correlation to solve the problems such as railroad train overvoltage, rail potential lifting, electromagnetic interference, Traction networks harmonic resonance
Model basis, to overcome and solving to show especially in current railway electrification project or recessive technical problem creates conditions.
Brief description of the drawings
Fig. 1 is the tunnel integrated ground system electrical attachment structure section with return wire direct-furnish mode.
Fig. 2 is to consider the tunnel road Traction networks chain model in tunnel road integrated ground system-based in detail.
Fig. 3 be SESCAD instruments draw tunnel in or tunnel portal to locomotive section traction current network.
Fig. 4 is the accurate iterative process for determining tunnel road Traction networks chain model integrated ground pole impedance.
Fig. 5 is the Traction networks chain model for spreading electric substation's short-circuit test checking near a river.
Fig. 6 is the chain model simulation result for spreading electric substation's short-circuit test checking near a river.
Embodiment
With reference to figure, the present invention is further detailed explanation with embodiment.
The present invention is applied to band return wire direct feeding system tractive power supply system in the electric railway of tunnel road,
The traction network modeling method of integrated ground system in tunnel is considered in detail, is comprised the following steps：
First, the electrical structure of integrated ground system in tunnel is analyzed, is connect according to Through ground wire, longitudinal ground rebar, ring
Ground reinforcing bar, chassis ground net, connection reinforcing bar, horizontal line and the electric topology being interconnected to form according to actual electrical arrangement, base
Traction current network model in tunnel is established in CDEGS softwares.
The 2nd, the driving source of above-mentioned institute's established model is set.Consider that backflow conductor leaks to the electric current of the earth not at model both ends
Know, the up-downgoing insertion ground every 100 meters at is extracted in tunnel under the premise of input stimulus source is equal with the setting of output drive source
Line is with being connected reinforcing bar connecting place earthing pole impedance and up-downgoing return wire and ring ground rebar junction are grounded at 35 meters
Pole impedance.
3rd, electrical structure analysis is carried out to the Traction networks with return wire direct-furnish mode of meter and tunnel road, utilized
MATLAB/Simulink builds corresponding chain model.Respectively to the roadbed section in addition to tunnel integrated ground system and tunnel
Each Traction networks wire of road segment segment carries out electrical parameter calculation.The relevant parameter in roadbed section is using simplified Carson formula meters
Calculate, the relevant parameter of tunnel road is calculated using Tylavsky formula.
4th, the earthing pole impedance for being extracted second step is substituted into the chain model of the 3rd step, and tunnel is obtained by emulation
The line residual current coefficient in region, if simulation result is different from the line residual current coefficient assumed in the 3rd step, according to MATLAB/
Simulink simulation results adjust input and output drive source in the 3rd step, repeat the 3rd step and extract result generation to by corresponding
Enter the process that chain model is emulated and obtain new traction current electric current, and the line residual current reset with CDEGS softwares
Coefficient contrasts again, is thusly-formed loop iteration, until the tunnel area that MATLAB/Simulink chain models emulate to obtain is big
Untill ground reflux to product ratio approaches the tunnel area line residual current coefficient set in corresponding second step, and then finally determine tunnel
The integrated ground pole impedance of section Traction networks chain model.
In the first step, the tunnel integrated ground system electrical attachment structure with return wire direct-furnish mode according to Fig. 1
Section, the Through ground wire of up-downgoing pass through a connection reinforcing bar and a longitudinal ground rebar phase of relevant position respectively every 100 meters
Even, and two longitudinal ground rebars disconnect at the tie point or so；Every a chassis distance, chassis ground pole, ring structural steel
Muscle and the ground networks that other longitudinal ground rebars are formed are connected with longitudinal ground rebar at Through ground wire existing together, return wire
It is connected every 35 meters with ring structure reinforcing bars；It is each to flow back the horizontal company of wire once every 500 meters.In consideration of it, with Through ground wire with indulging
It is a unit to 100 meters between adjacent two junction of ground rebar, if can determine that up-downgoing Through ground wire in each unit
With being connected (1,2,7,8 in such as Fig. 1) the earthing pole impedance of reinforcing bar connecting place and determining every 35 meters of return wires and ring ground rebar
It can reflect tunnel road integrated ground system detailed construction under power frequency if junction (such as in Fig. 13,4,5,6) earthing pole impedance.
With reference to the electrical structure of tunnel integrated ground system as shown in Figure 1, established using SESCAD instruments in tunnel or
Tunnel portal, for Traction networks backflow conductor, defines its resistivity, radius, painting to the traction current network model in locomotive section
The actual parameters such as layer, size and position；For soil where Through ground wire and ground rebar, its soil resistivity, soil are defined
Shape and structure parameter.The traction current network established is as shown in Figure 3.
In second step, if locomotive is located at outside tunnel, the traction being relatively distant from outside the tunnel face of traction substation is set to return
Stream electric current is input stimulus source, and it is output drive to set close to the traction current electric current at the tunnel face at traction substation
Source (refurn electrode)；If locomotive is located in tunnel, it is input stimulus source to set locomotive load electric current, is set close to traction
The traction current electric current of the tunnel face of electric substation is output drive source.The conductor that considers to flow back in tunnel leak to the electric current of the earth compared with
It is less and unknown, by by input stimulus source it is equal with the setting of output drive source using hypothetical ration conductor leak to the electric current of the earth as
Zero.
A series of measurement points are set between grounded screen and distal end refurn electrode, and measurement point is arranged at tunnel road and entirely led
Draw in net and to locate Through ground wire every 100 meters and connect tie point between reinforcing bar and return wire and connect between reinforcing bar at 35 meters
Tie point.The size of current of connection reinforcing bar is tested by ammeter, voltmeter test measurement point current potential size, is connect based on frequency
The simulation calculation of ground analysis module (MALZ) engineering module, the voltage hinder with the initial ground pole that current ratio is relevant position
It is anti-.
In 3rd step, Traction networks chain model includes parallel element and series element.As parallel multi-conductor transmission lines
Series element is every a segment distance by such as the equipotential transverse connecting line of backflow network, traction substation, train parallel element
Cutting.According to parallel element position, traction pessimistic concurrency control can be divided into the sub-network model of multiple series connection.In each sub-network
Inductive coupled and capacitive coupling comprising parallel multi-conductor transmission lines.Because Through ground wire is embedded in underground, with the direct of return wire
Multiple line electric power system chain model considers up-downgoing contact line, carrier cable, return wire, 10 wires of two rail.To reduce
Amount of calculation, more wires are carried out with equivalent merging, it is specific as follows：
Assuming that up return wire, two rail, carrier cable, contact line and descending carrier cable, contact line, two bar steels
The unit length voltage drop of rail, return wire is followed successively by U1、U2、…、U10, the electric current flowed through is followed successively by I1、I2、…、I10, unit length
Degree self-impedance is Zi(i=1,2 ..., 10), unit length mutual impedance are Zij(i, j=1,2 ..., 10), 10 wire voltage drops,
Electric current, the relation of impedance matrix are shown in formula (1).
Formula (1) is converted, obtained：
Up-downgoing contact line everywhere and carrier cable are merged into contact net, two rail merge into an equivalent steel
Rail.Consider that contact net electric current is equal to carrier cable electric current and contact line current sum, contact net, carrier cable and contact line above earth potential
Equal, the two rail sums of up-downgoing everywhere are equal to the rail current after merging, and two rail potential to ground, which are equal to, to be merged
The above earth potential of rail afterwards, shown in the impedance matrix such as formula (3) after must being merged by transform (2), i.e. 6 × 6 rank matrixes.
Assuming that up return wire, two rail, carrier cable, contact line and descending carrier cable, contact line, two bar steels
Rail, the unit length electric charge of return wire are followed successively by q1、q2、…、q10, unit length self-potential coefficient is Zi(i=1,2 ..., 10),
The mutual coefficient of potential of unit length is Zij(i, j=1,2 ..., 10), obtain 10 wire above earth potentials, coefficient of potential matrix and electric charge
The relational expression of matrix is shown in formula (4).
To the coefficient of potential matrix inversion shown in formula (4), obtain：
Consider that contact net electric charge is equal to carrier cable electric charge and contact line charge sum, contact net, carrier cable and contact line pair
Ground potential is equal, and the two rail sums of up-downgoing everywhere are equal to the rail current after merging, two rail potential to ground etc.
The above earth potential of rail after merging, shown in the capacitance matrix such as formula (6) after must being merged by transform (5), i.e. 6 × 6 ranks
Matrix.
To sum up, using the MATLAB/Simulink Traction networks chain models established as shown in figure 3, related parameter calculates
For：
For the Traction networks wire parameter in roadbed section, calculated using the simplification Carson formula generally used.Formula
(3) wire i self-impedance Z iniiWith wire i and wire j mutual impedance Zij, in formula (6) wire i self-potential FACTOR Pii, wire
I and wire j mutual coefficient of potential PijCalculating formula is shown in formula (7) and formula (8) respectively.
In formula (7) and formula (8)：μ0For space permeability (4 π × 10-7H/m)；ω is angular frequency；Ri is wire i radius；
RεiFor wire i equivalence radius, and Rεi=rie-μ/4(μ is wire i magnetic conductivity)；dijFor the distance between wire i and wire j；
DgFor the equivalent depth of the earth, calculating formula is(ρ is ground resistivity；F is frequency).
For the Traction networks wire parameter of tunnel road, using based on the unlimited big ground circular tunnel model of surrounding
Tylavsky formula are calculated.Wire i self-impedance Z in formula (3)iiWith wire i and wire j mutual impedance Zij, in formula (6)
Wire i self-potential FACTOR Pii, wire i and wire j mutual coefficient of potential PijCalculating formula is shown in formula (9) and formula (10) respectively.
In formula (9) and formula (10)：P is multiple depth in ground,(ω is angular frequency)；R is tunnel equivalent half
Footpath；biFor wire i to distance between the tunnel model equivalence center of circle；bjFor wire j to distance between the equivalent circle of tunnel model；θ is wire
I and wire j is to angle between the tunnel model equivalence center of circle；riFor wire i radius；dijFor the distance between wire i and wire j.
The unit length substitutional resistance of Through ground wire, equivalent inductance and the calculating formula of scatter admittance is shown in formula (11) over the ground.
In formula, l is Through ground wire length；A is the radius of conductor；ρ is Through ground wire resistivity；ρ ' is soil resistivity；h
The depth of big underground is embedded in for combined through ground wire.
In addition, Through ground wire impedance ground shown in Fig. 3 is obtained with return wire impedance ground by the modeling and simulating of CDEGS softwares
To set, temporarily from the initial results of second step extraction.
In 4th step, Fig. 1 is substituted into return wire earthing pole impedance in the Through ground wire impedance ground for extracting second step
Under the premise of shown MATLAB/Simulink Traction networks chain model, emulate to obtain tunnel area by MATLAB/Simulink
Line residual current coefficient, if simulation result is different from the line residual current coefficient assumed, according to MATLAB/Simulink simulation results
The input in second step and output drive source are adjusted, then Through ground wire impedance ground is recalculated with returning by MALZ engineering modules
Streamline impedance ground, the result that MALZ engineering modules recalculate then is substituted into MATLAB/Simulink chain models again
In, if the result of emulation still mismatches with the driving sources of CDEGS software design patterns, repeatedly above step again, loop iteration mistake
Journey is as shown in Figure 4.When the tunnel area line residual current coefficient approximation that MATLAB/Simulink chain models emulate to obtain is in corresponding
Second step in the tunnel area line residual current coefficient that sets, Through ground wire impedance ground connects with return wire corresponding to chain model
It is considered as the integrated ground pole impedance finally determined that ground impedance, which is, and can accurately reflect tunnel road integrated ground system under power frequency
System detailed construction.
Detailed checking is done to the inventive method and technique effect below by instantiation.
Selection spreads the short-circuit test of electric substation one and carries out case study near a river, and experiment selection contact line is to rail short circuit, short circuit
Point distance spreads electric substation 14.51km near a river, and 6.711km filoplume mountain tunnel is passed through in centre.Wherein, contact wire use section for
150mm2AgCu alloy contact wire, carrier cable uses section as 120mm2Copper alloy carrier cable, copper alloy carrier cable use
LBGLJ-185 models, tunnel IV level country rocks.It is 12.61kV that feeder voltage is surveyed in experiment, feeder current 2425.37A, circuit
Impedance angle is 252.10 degree, i.e. short-circuit impedance amplitude and phase angle is respectively 5.1042 Ω and 252.10。。
Using the inventive method carry out case verification when, consider filoplume mountain tunnel be related to integrated ground unit it is more, utilize
Limitation, the computing of CDEGS softwares in SESCAD tool modelings to number of steel bars be time-consuming, each integrated ground unit of tunnel internal passes through
Logical ground wire and return wire are grounded the factors, the only insertion to an integrated ground unit in the tunnel of filoplume mountain such as electrode resistance is almost identical
The earthing pole impedance of ground wire and return wire is extracted.Thereafter, with reference to Fig. 4 iterative process, establish meter and spread electric substation near a river
To the Traction networks chain model of circuit between short dot, as shown in Figure 5.Because filoplume mountain length of tunnel is 6.711km, tunnel road
The Traction networks chain model of section is divided into 67 submodules, and each submodule is Traction networks corresponding to unit integrated ground unit
Chain model, the Traction networks chain model of roadbed section are equivalent using lumped parameter.By iteration, the insertion that will eventually determine
The impedance of line earthing pole and the impedance of return wire earthing pole are substituted into chain model, by simulating contact net to rail short circuit, are presented
Line voltage and feeder current waveform as shown in fig. 6, short-circuit impedance amplitude and phase angle are respectively 4.9716 Ω and 254.03 °, with
Experimental results approach.
Claims (4)
1. the traction network modeling method of a kind of meter and tunnel road integrated ground system architecture, it is characterised in that including following step
Suddenly：
Step 1：The electrical structure of integrated ground system in tunnel is analyzed, is grounded according to Through ground wire, longitudinal ground rebar, ring
Reinforcing bar, chassis ground net, connection reinforcing bar, horizontal line and the electric topology being interconnected to form according to actual electrical arrangement, are based on
CURRENT DISTRIBUTION, electromagnetic field, ground connection and the soil texture analysis software of Canadian safety engineering technology company exploitation, i.e. CDEGS are soft
Part establishes traction current network model in tunnel, sets tunnel area line residual current coefficient primary quantity；
Step 2：The driving source of traction current network model in 1 built tunnel of setting steps, using frequency domain Analysis of Grounding module, i.e.,
Earthing pole impedance of the MALZ engineerings module to combined through ground wire is extracted；
Step 3：Electrical structure analysis is carried out to the Traction networks with return wire direct-furnish mode of meter and tunnel road, used
MATLAB/Simulink builds corresponding chain model；
Step 4：The earthing pole impedance extracted using MALZ engineerings module at each tie point is substituted into the chain model of step 3,
The line residual current coefficient of tunnel area is obtained by emulation；
Step 5：The associated electrical parameters of the contact net of roadbed section and tunnel road, rail, return wire, Through ground wire are carried out
Calculate；The parameter in roadbed section is calculated using Carson formula are simplified, and the parameter of tunnel road is calculated using Tylavsky formula；
Step 6：The line residual current coefficient for the tunnel area that step 4 emulation is obtained returns with the earth that CDEGS softwares are reset
Stream coefficient is contrasted, and judges whether MATLAB/Simulink chain models emulate obtained tunnel area line residual current coefficient
The tunnel area line residual current coefficient set is approached in corresponding step 1, if so, the foundation of traction current network model is completed,
If it is not, then performing step 2, step 3, step 4 successively again forms loop iteration, until MATLAB/Simulink chain models are imitated
The tunnel area line residual current coefficient that the tunnel area line residual current coefficient approximation really obtained is set in corresponding step 1 is
Only, it is finally completed the foundation of traction current network model.
2. the traction network modeling method of a kind of meter as claimed in claim 1 and tunnel road integrated ground system architecture, it is special
Sign is,
When driving source is set in step 2, if locomotive is located at outside tunnel, setting is relatively distant from outside the tunnel face of traction substation
Traction current electric current is input stimulus source, and it is defeated to set close to the traction current electric current at the tunnel face at traction substation
Go out driving source；If locomotive is located in tunnel, it is input stimulus source to set locomotive load electric current, is set close to traction power transformation
The traction current electric current of tunnel face be output drive source.
3. the traction network modeling method of a kind of meter as claimed in claim 1 and tunnel road integrated ground system architecture, it is special
Sign is that the electrical structure that integrated ground system in tunnel is analyzed in the step 1 is specially：
It is every according to the tunnel integrated ground system electrical attachment structure section with return wire direct-furnish mode, the Through ground wire of up-downgoing
It is connected respectively by a connection reinforcing bar with a longitudinal ground rebar of relevant position every 100 meters, and two at the tie point or so
Longitudinal ground rebar disconnects；Every a chassis distance, chassis ground pole, ring structure reinforcing bars and other longitudinal ground rebars are formed
Ground networks be connected with longitudinal ground rebar at Through ground wire existing together, return wire is every 35 meters and ring structure reinforcing bars phase
Even；It is each to flow back the horizontal company of wire once every 500 meters.
4. the traction network modeling method of a kind of meter as claimed in claim 1 and tunnel road integrated ground system architecture, it is special
Sign is,
Traction networks chain model includes parallel element and series element in the step 3；String as parallel multi-conductor transmission lines
Connection element is cut every a segment distance by such as the equipotential transverse connecting line of backflow network, traction substation, train parallel element
Cut；According to parallel element position, traction pessimistic concurrency control is divided into the sub-network model of multiple series connection, is included in each sub-network flat
The inductive coupled and capacitive coupling of row multi-conductor transmission lines.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790957A (en) * | 2018-06-29 | 2018-11-13 | 中铁二院工程集团有限责任公司 | A kind of urban track traffic integrated ground system applied to alternating current traction power supply system |
| CN109455110A (en) * | 2018-07-31 | 2019-03-12 | 中铁二院工程集团有限责任公司 | A kind of calculation method of the comprehensive current-carrying capability of tunnel road AT tractive power supply system |
| CN109842092A (en) * | 2019-01-29 | 2019-06-04 | 中铁第四勘察设计院集团有限公司 | Traction substation interconnects power frequency short circuit safety evaluation method after integrated ground system |
| CN109948193A (en) * | 2019-02-26 | 2019-06-28 | 中铁第四勘察设计院集团有限公司 | Interconnect the rail traction substation lightning stroke safety evaluation method of integrated ground system |
| CN110705729A (en) * | 2019-10-14 | 2020-01-17 | 中国铁道科学研究院集团有限公司通信信号研究所 | Fault detection method and device for track power supply system, server and storage medium |
| CN111382509A (en) * | 2020-03-06 | 2020-07-07 | 西南交通大学 | Design and verification method for optimization of train body grounding system of motor train unit |
| CN111709103A (en) * | 2020-05-18 | 2020-09-25 | 中铁二院工程集团有限责任公司 | Multi-conductor loop method-based traction network chain type parameter model with return line direct power supply mode |
| CN112329211A (en) * | 2020-10-19 | 2021-02-05 | 南方电网科学研究院有限责任公司 | Urban railway conductor section leakage current simulation measurement method based on CDEGS |
| CN112327209A (en) * | 2020-11-03 | 2021-02-05 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle traction system leakage current detection method and device and rail vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105653818A (en) * | 2016-01-21 | 2016-06-08 | 中铁二院工程集团有限责任公司 | Electrified railway traction net impedance calculation method |
| CN106080269A (en) * | 2016-06-21 | 2016-11-09 | 西南交通大学 | Band return wire direct feeding system tunnel impedance of traction electric network computational methods |
-
2017
- 2017-07-25 CN CN201710609714.6A patent/CN107609208B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105653818A (en) * | 2016-01-21 | 2016-06-08 | 中铁二院工程集团有限责任公司 | Electrified railway traction net impedance calculation method |
| CN106080269A (en) * | 2016-06-21 | 2016-11-09 | 西南交通大学 | Band return wire direct feeding system tunnel impedance of traction electric network computational methods |
Non-Patent Citations (4)
| Title |
|---|
| WU MINGLI: "Physical Interpretation of Impedance Formulas for Conductors Enclosed in a Cylindrical Tunnel", 《IEEE TRANSACTIONS ON POWER DELIVERY》 * |
| 吴命利: "电气化隧道中的导线_地回路阻抗", 《中国电机工程学报》 * |
| 张桂南等: "高速铁路隧道及高架桥路段牵引网建模与分析", 《铁道学报》 * |
| 郭晓旭: "高速铁路牵引网建模与仿真", 《中国优秀硕士学位论文全文数据库（电子期刊）》 * |
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| CN110705729A (en) * | 2019-10-14 | 2020-01-17 | 中国铁道科学研究院集团有限公司通信信号研究所 | Fault detection method and device for track power supply system, server and storage medium |
| CN111382509A (en) * | 2020-03-06 | 2020-07-07 | 西南交通大学 | Design and verification method for optimization of train body grounding system of motor train unit |
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