CN106443331A - Pulse method based feed catenary fault locating system - Google Patents
Pulse method based feed catenary fault locating system Download PDFInfo
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- CN106443331A CN106443331A CN201610810390.8A CN201610810390A CN106443331A CN 106443331 A CN106443331 A CN 106443331A CN 201610810390 A CN201610810390 A CN 201610810390A CN 106443331 A CN106443331 A CN 106443331A
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- Prior art keywords
- module
- short
- contact net
- feed contact
- short circuit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The invention belongs to the field of maglev engineering traction power supply related equipment, and discloses a pulse method based feed catenary fault locating system. The system comprises an acquisition module, a storage module, a command generation module, a judgement module and a control unit, wherein in the acquisition module is used for acquiring instantaneous current between running rails from the feed catenary at set time; the storage module is pre-stored with a short-circuit current curve reflecting the distance relationship between a short-circuit fault point of the feed catenary and a traction substation, and the command generation module and the judgement module match with each other to judge whether multiple locomotives take current outside at the same time or not; the control unit compares sampled data from the acquisition module with corresponding current values on the short-circuit current curve of the storage module one by one, and combines the judgement results from the judgement module to judge whether short-circuit fault happens or not and realize short-circuit fault point locating. Through the system, feed catenary fault locating of the maglev traction power supply system can be realized in a convenient-to-control and high-precision mode.
Description
Technical field
The invention belongs to magnetic floats engineering traction power supply relevant device field, more particularly, to a kind of based on impulse method
Feed contact net fault location system.
Background technology
The speed of middle low speed magnetic suspension train is generally 100km/h to 200km/h, is suitable for city common-rail traffic,
Including traffic between urban transit system, suburban traffic, downtown to airport, multiple cities etc..One of key technology is floated as magnetic,
The electric power system of reliable and economical rationality is to realize important guarantee and the premise of magnetic suspension train safe operation；And in order to from traction
Electric substation is to magnetic-levitation train locomotive power supply, it is necessary to be between provided with Feed contact net.
However, when DC side is short-circuited fault, Feed contact net can be also short-circuited to rail, and short circuit electricity
Stream can show very big different qualities as short circuit trouble point is different apart from the distance of traction substation.Specifically, when
From traction substation be more nearby short-circuited fault when, as short circuit current climbing is very big, corresponding easily judge residing for fault
Position；And with short circuit trouble point from traction substation increasingly away from, the rising rate of change of short circuit current is less, current amplitude
Less, its current conditions is easy to many locomotives while state when taking stream is mutually obscured, accordingly cause actual fortune in the case
In row distal end be short-circuited fault when be difficult to differentiate between the situation of short circuit current and locomotive starting current, and then cause short trouble to be repaiied
Multiple time delay.For the communication signals such as tunnel are weak etc., GPS location realizes difficult environment for this, and the problem of fault location is more particularly
Prominent.In the case, how for magnetic-suspension tractive electric power system come targeted design more effectively, rational Feed contact net
Fault location scheme, the technical problem for just becoming this area urgent need to resolve is located.
Content of the invention
Disadvantages described above or Improvement requirement for prior art, the invention provides a kind of Feed contact based on impulse method
Net fault location system, wherein passes through application and the work characteristics with reference to magnetic-suspension tractive electric power system itself, mutually tackles which overall
Contexture and multiple key components such as acquisition module, memory module, determination module etc. in structure composition and dispose principle
Etc. aspect make further Curve guide impeller, thus, it is possible in order to manipulate, high accuracy realized to magnetcisuspension with efficient mode
The Feed contact net fault location of suspension tractive electric power system, is therefore particularly suitable for the applied field of middle low speed magnetic suspension engineering etc
Close.
For achieving the above object, the present invention proposes a kind of Feed contact net fault location system based on impulse method, should
Feed contact net fault location system includes that acquisition module, memory module, instruction occur module, judge module and control unit,
It is characterized in that：
The quantity of the acquisition module is multiple, and they are arranged in whole magnetic-levitation along the line along proportional spacing, and
For timing acquiring Feed contact net to the transient current between rail, then sampling data synchronization is transferred to the control
Unit；
The memory module is connected with the judge module, control unit signal respectively, and for prestoring reflection feed
The short circuit current curve of distance relation between contact net short circuit trouble point and traction substation, and the short circuit current curve is presented
The form of exponential function curve；
The instruction occurs module to be connected with the judge module signal, and which is used for real many to external world locomotives while taking stream
Situation executes real-time sampling monitoring, then the case instructions timing of sampling monitoring is sent to the judge module；The judgement mould
Block is then continued to determine whether many locomotives while take stream, and result of determination is transferred to described control unit；
Described control unit is by the short circuit current curve of the sampled data from the acquisition module and the memory module
On corresponding current value be compared one by one, in combination with the result of determination from the judge module, thus judge to occur short
Road fault or many locomotives take stream simultaneously, and according to residing for the acquisition module in the case that judgement is short-circuited fault
The positioning to short circuit trouble point is realized in position.
As it is further preferred that the acquisition module is preferably arranged in whole magnetcisuspension according to the proportional spacing of 2km～4km
Floating track is along the line.
As it is further preferred that the short circuit current curve that prestores of the memory module is preferably by way of simulation test
Draw.
As it is further preferred that the preferred timing transmission of the acquisition module and apply pulse signal, and accordingly gather
Under this pulse signal, Feed contact net is to the transient current between rail.
As it is further preferred that above-mentioned Feed contact net fault location system also includes display module, the display module
For occurring module and the state of control module to show in real time the acquisition module, memory module, instruction.
In general, by the contemplated above technical scheme of the present invention compared with prior art, wherein by combining magnetic
The application of suspension tractive electric power system itself and work characteristics, mutually tackle its unitary construction composition and have re-started design, especially
Taken into full account when short circuit trouble point apart from traction substation farther out when, short circuit current rises that rate of change is less, current amplitude
Less, it is easy with many locomotives while take the technical problem that stream causes to obscure to cause, thus, it is possible in order to manipulate, high accuracy and high
The mode of efficiency is realized the short trouble to magnetic suspension tractive power supply system and is positioned, and is particularly suited for middle low speed magnetic suspension engineering
Etc application scenario.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only in order to explain the present invention
Limit the present invention.As long as additionally, involved technical characteristic in each embodiment of invention described below each other it
Between do not constitute conflict can just be mutually combined.
The basic inventive concept of the present invention first consist in, it is realized that when short circuit trouble point from traction substation increasingly away from
When, short circuit current rising rate of change is less, and current amplitude is also less, and the current conditions of this process are typically with many locomotives while take
Easily cause during stream and obscure, this result in distal end in actual motion be short-circuited fault when be difficult to differentiate between short circuit current and open with locomotive
The situation of streaming current, the time delay for causing short trouble to repair.Additionally, after short trouble and many locomotives is distinguished while taking stream,
The present invention be also further directed to how high accuracy, expeditiously obtain short circuit trouble point and continue to be made that research and design.
More specifically, acquisition module, storage mould are mainly included according to the Feed contact net fault location system of the present invention
There is module, judge module and control unit etc. in block, instruction, which will be specifically described one by one below.
The quantity of the acquisition module is multiple, and they are arranged in whole magnetic-levitation along the line along proportional spacing, and
For timing acquiring Feed contact net to the transient current between rail, then sampling data synchronization is transferred to the control
Unit.
The memory module is connected with the judge module, control unit signal respectively, and for prestoring reflection feed
The short circuit current curve of distance relation between contact net short circuit trouble point and traction substation, and the short circuit current curve is presented
The form of exponential function curve.
The instruction occurs module to be connected with the judge module signal, and which is used for real many to external world locomotives while taking stream
Situation executes real-time sampling monitoring, then the case instructions timing of sampling monitoring is sent to the judge module；The judgement mould
Block is then continued to determine whether many locomotives while take stream, and result of determination is transferred to described control unit.
Described control unit is by the short circuit current curve of the sampled data from the acquisition module and the memory module
On corresponding current value be compared one by one, in combination with the result of determination from the judge module, thus judge to occur short
Road fault or many locomotives take stream simultaneously, and according to residing for the acquisition module in the case that judgement is short-circuited fault
The positioning to short circuit trouble point is realized in position.
According to a preferred embodiment of the present invention, the acquisition module is preferably arranged according to the proportional spacing of 2km～4km
Along the line in whole magnetic-levitation.Additionally, the short circuit current curve that the memory module prestores is preferably by the side of simulation test
Formula draws, the process of its simulation test and principle are well known to those skilled in the art, and therefore will not be described here.
According to another preferred embodiment of the present invention, the preferred timing transmission of the acquisition module and apply pulse signal, and
Feed contact net is accordingly gathered under this pulse signal to the transient current between rail.
Additionally, above-mentioned lightning arrester monitoring device can also include display unit, the display module is used for the collection mould
Block, memory module, instruction occur module and the state of control module to show in real time, are thus easy to center controllers
Grasp in real time and process.
To sum up, passed through with reference to magnetic-suspension tractive electric power system by the contemplated Feed contact net fault location system of the present invention
The application of itself and work characteristics, mutually tackle its unitary construction composition and have re-started design, especially taken into full account when short
Road trouble point apart from traction substation farther out when, short circuit current rises that rate of change is less, current amplitude is also less, cause easily with
Many locomotives take the technical problem that stream causes to obscure simultaneously, thus, it is possible in order to manipulate, high accuracy realized with efficient mode
The short trouble of magnetic suspension tractive power supply system is positioned, and is particularly suited for the applied field of middle low speed magnetic suspension engineering etc
Close.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, not in order to
The restriction present invention, all any modification, equivalent and improvement that is made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (5)
1. a kind of Feed contact net fault location system based on impulse method, the Feed contact net fault location system includes collection
There is module, judge module and control unit in module, memory module, instruction, it is characterised in that：
The quantity of the acquisition module is multiple, and they are arranged in whole magnetic-levitation along the line along proportional spacing, and are used for
Then sampling data synchronization is transferred to the control single to the transient current between rail by timing acquiring Feed contact net
Unit；
The memory module is connected with the judge module, control unit signal respectively, and for prestoring reflection Feed contact
The short circuit current curve of distance relation between network short circuit fault point and traction substation, and the short circuit current curve assumes index
The form of function curve；
The instruction occurs module to be connected with the judge module signal, and which is used for real many to external world locomotives while taking the situation of stream
Real-time sampling monitoring is executed, then the case instructions timing of sampling monitoring is sent to the judge module；The judge module is then
Continue to determine whether many locomotives while stream is taken, and result of determination is transferred to described control unit；
Described control unit is by the short circuit current curve from the sampled data of the acquisition module with the memory module
Corresponding current value is compared one by one, in combination with the result of determination from the judge module, thus judges the event that is short-circuited
Barrier or many locomotives take stream, and the present position in the case that judgement is short-circuited fault according to the acquisition module simultaneously
Realize the positioning to short circuit trouble point.
2. the Feed contact net fault location system based on impulse method as claimed in claim 1, it is characterised in that the collection
It is along the line that module is preferably arranged in whole magnetic-levitation according to the proportional spacing of 2km～4km.
3. the Feed contact net fault location system based on impulse method as claimed in claim 1 or 2, it is characterised in that described
The short circuit current curve that memory module prestores preferably is drawn by way of simulation test.
4. the Feed contact net fault location system based on impulse method as described in claim 1-3 any one, its feature exists
In, the preferred timing transmission of the acquisition module and apply pulse signal, and accordingly gather Feed contact net under this pulse signal
To the transient current between rail.
5. the Feed contact net fault location system based on impulse method as described in claim 1-4 any one, its feature exists
In above-mentioned Feed contact net fault location system also includes display module, and the display module is used for the acquisition module, storage
Module, instruction occur module and the state of control module to show in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610810390.8A CN106443331B (en) | 2016-09-08 | 2016-09-08 | Feed contact net fault location system based on impulse method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610810390.8A CN106443331B (en) | 2016-09-08 | 2016-09-08 | Feed contact net fault location system based on impulse method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106443331A true CN106443331A (en) | 2017-02-22 |
| CN106443331B CN106443331B (en) | 2019-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610810390.8A Active CN106443331B (en) | 2016-09-08 | 2016-09-08 | Feed contact net fault location system based on impulse method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048384A (en) * | 2019-05-14 | 2019-07-23 | 国网北京市电力公司 | A kind of distribution high reliability self-healing method and system |
| CN110221181A (en) * | 2019-07-02 | 2019-09-10 | 西南交通大学 | A kind of AT sections of full Parallel AT tractive power supply system failure short-circuit independent positioning methods |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253308A (en) * | 2011-04-29 | 2011-11-23 | 上海磁浮交通发展有限公司 | Method for determining asymmetric short circuit fault of long stator according to negative sequence voltage |
| CN102279338A (en) * | 2011-04-29 | 2011-12-14 | 上海磁浮交通发展有限公司 | Method for monitoring two-phase grounding fault of magnetic levitation stator coil |
| CN103481793A (en) * | 2013-09-17 | 2014-01-01 | 中国人民解放军国防科学技术大学 | Integrated grounding system for medium-and-low-speed maglev train |
-
2016
- 2016-09-08 CN CN201610810390.8A patent/CN106443331B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253308A (en) * | 2011-04-29 | 2011-11-23 | 上海磁浮交通发展有限公司 | Method for determining asymmetric short circuit fault of long stator according to negative sequence voltage |
| CN102279338A (en) * | 2011-04-29 | 2011-12-14 | 上海磁浮交通发展有限公司 | Method for monitoring two-phase grounding fault of magnetic levitation stator coil |
| CN103481793A (en) * | 2013-09-17 | 2014-01-01 | 中国人民解放军国防科学技术大学 | Integrated grounding system for medium-and-low-speed maglev train |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048384A (en) * | 2019-05-14 | 2019-07-23 | 国网北京市电力公司 | A kind of distribution high reliability self-healing method and system |
| CN110221181A (en) * | 2019-07-02 | 2019-09-10 | 西南交通大学 | A kind of AT sections of full Parallel AT tractive power supply system failure short-circuit independent positioning methods |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106443331B (en) | 2019-03-05 |
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