CN106443331B - Feed contact net fault location system based on impulse method - Google Patents
Feed contact net fault location system based on impulse method Download PDFInfo
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- CN106443331B CN106443331B CN201610810390.8A CN201610810390A CN106443331B CN 106443331 B CN106443331 B CN 106443331B CN 201610810390 A CN201610810390 A CN 201610810390A CN 106443331 B CN106443331 B CN 106443331B
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- module
- contact net
- feed contact
- fault location
- location system
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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 magnetic to float engineering traction power supply relevant device field, and disclose a kind of Feed contact net fault location system based on impulse method, the system includes acquisition module, memory module, instruction generation module, judgment module and control unit, and wherein acquisition module is for timing acquiring Feed contact net to the transient current between rail；Memory module prestores the short circuit current curve of distance relation between reflection Feed contact network short circuit fault point and traction substation, and module occurs for instruction and judgment module cooperation completes whether the external world occurs multimachine vehicle while taking stream；Corresponding current value on the short circuit current curve of sampled data and memory module from acquisition module is compared by control unit one by one, in combination with the judgement from judgment module as a result, thus determining whether to occur short trouble and realizing short trouble point location.By means of the invention it is possible in order to manipulate, high-precision mode realize the Feed contact net fault location to magnetic suspension tractive power supply system.
Description
Technical field
The invention belongs to magnetic to float engineering traction power supply relevant device field, more particularly, to a kind of based on impulse method
Feed contact net fault location system.
Background technique
The speed of middle low speed magnetic suspension train is generally 100km/h to 200km/h, is suitable for city common-rail traffic,
Including the traffic etc. between urban transit system, suburban traffic, downtown to airport, multiple cities.One of key technology is floated as magnetic,
Reliable and economical rationality power supply system is to realize the important guarantee and 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 provided with Feed contact net therebetween.
However, to rail short circuit, and short circuit electricity can also occur for Feed contact net when short trouble occurs for DC side
Stream can distance with short circuit trouble point apart from traction substation it is different and show very big different characteristics.Specifically, working as
It is corresponding to be easy to determine locating for failure since short circuit current climbing is very big when short trouble more nearby occurring from traction substation
Position；And as short circuit trouble point is more and more remoter from traction substation, the rising change rate of short circuit current is smaller, current amplitude
Smaller, its current conditions is easy to take state when stream mutually to obscure simultaneously with multimachine vehicle in the case, accordingly causes practical fortune
Distally there is a situation where being difficult to differentiate between short circuit current and locomotive starting current when short trouble in row, and then short trouble is caused to be repaired
Multiple delay.The problem of this GPS positioning such as weak for communication signals such as tunnels realizes difficult environment, fault location is more especially
It is prominent.In the case, how Feed contact net more effective come targeted design for magnetic-suspension tractive power supply system, reasonable
Fault location scheme, just as this field urgent need to resolve the technical issues of where.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of Feed contacts based on impulse method
Net fault location system, wherein application and work characteristics by combining magnetic-suspension tractive power supply system itself, mutually cope with its entirety
Contexture and multiple key components such as acquisition module, memory module, determination module etc. are in structure composition and disposition principle
Etc. make further Curve guide impeller, thus, it is possible in order to manipulate, high-precision realizes to magnetcisuspension with efficient mode
The Feed contact net fault location of suspension tractive power supply system, is therefore particularly suitable for the applied field of middle low speed magnetic suspension engineering etc
It closes.
To achieve the above object, the invention proposes a kind of Feed contact net fault location system based on impulse method, should
Feed contact net fault location system includes acquisition module, memory module, instructs generation module, judgment module and control unit,
It is characterized by:
The quantity of the acquisition module be it is multiple, they are arranged in along entire magnetic-levitation along proportional spacing, and
For timing acquiring Feed contact net to the transient current between rail, sampling data synchronization is then transferred to the control
Unit；
The memory module is connected with the judgment 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；
Described instruction occurs module and is connected with the judgment module signal, is used for reality to extraneous multimachine vehicle while taking stream
Situation executes real-time sampling monitoring, and the case instructions of sampling monitoring are then periodically sent to the judgment module；The judgement mould
Block then continues to determine whether that multimachine vehicle occurs while taking stream, and will determine that result is transferred to described control unit；
Described control unit by from the acquisition module sampled data and the memory module short circuit current curve
On corresponding current value be compared one by one, in combination with the judgement from the judgment module as a result, thus determine occur it is short
Road failure or multimachine vehicle take stream simultaneously, and in the case where determining to occur short trouble according to locating for the acquisition module
Realize the positioning to short circuit trouble point in position.
As it is further preferred that the acquisition module is preferably arranged in entire magnetcisuspension according to the proportional spacing of 2km~4km
Along floating track.
As it is further preferred that the short circuit current curve that prestores of the memory module preferably by way of simulation test
It obtains.
As it is further preferred that the preferred timing transmission of the acquisition module and apply pulse signal, and accordingly acquire
Feed contact net is to the transient current between rail under this pulse signal.
As it is further preferred that above-mentioned Feed contact net fault location system further includes display module, the display module
State for module and control module to occur to the acquisition module, memory module, instruction gives real-time display.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, wherein by combine magnetic
The application and work characteristics of suspension tractive power supply system itself mutually cope with its overall construction composition and have re-started design, especially
When having fully considered when short circuit trouble point apart from traction substation farther out, short circuit current rises that change rate is smaller, current amplitude
It is smaller, cause to be easy to take stream to cause the technical issues of obscuring simultaneously with multimachine vehicle, thus, it is possible in order to manipulate, high-precision and high
The mode of efficiency realizes the short trouble positioning to magnetic suspension tractive power supply system, and is particularly suitable for middle low speed magnetic suspension engineering
Etc application.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it
Between do not constitute conflict and can be combined with each other.
Basic inventive concept of the invention first consists in, it is realized that when short circuit trouble point is more and more remoter from traction substation
When, short circuit current rising change rate is smaller, and current amplitude is also smaller, and the current conditions of this process generally take with multimachine vehicle simultaneously
It is easy to cause and obscures when stream, this results in distally occurring in actual motion being difficult to differentiate between short circuit current when short trouble opens with locomotive
The case where streaming current, causes the delay of short trouble reparation.In addition, after distinguishing short trouble and multimachine vehicle while taking stream,
The present invention also further directed to how high-precision, expeditiously obtain short circuit trouble point continue to be made that research and design.
More specifically, Feed contact net fault location system according to the invention mainly includes acquisition module, storage mould
Module, judgment module and control unit etc. occur for block, instruction, it will be specifically described one by one below.
The quantity of the acquisition module be it is multiple, they are arranged in along entire magnetic-levitation along proportional spacing, and
For timing acquiring Feed contact net to the transient current between rail, sampling data synchronization is then transferred to the control
Unit.
The memory module is connected with the judgment 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.
Described instruction occurs module and is connected with the judgment module signal, is used for reality to extraneous multimachine vehicle while taking stream
Situation executes real-time sampling monitoring, and the case instructions of sampling monitoring are then periodically sent to the judgment module；The judgement mould
Block then continues to determine whether that multimachine vehicle occurs while taking stream, and will determine that result is transferred to described control unit.
Described control unit by from the acquisition module sampled data and the memory module short circuit current curve
On corresponding current value be compared one by one, in combination with the judgement from the judgment module as a result, thus determine occur it is short
Road failure or multimachine vehicle take stream simultaneously, and in the case where determining to occur short trouble according to locating for the acquisition module
Realize the positioning to short circuit trouble point in position.
A preferred embodiment according to the invention, the acquisition module are preferably arranged according to the proportional spacing of 2km~4km
Along entire magnetic-levitation.In addition, the short circuit current curve that the memory module prestores preferably passes through the side of simulation test
Formula show that the process and principle of simulation test are well known to those skilled in the art, therefore details are not described herein.
Another preferred embodiment according to the invention, the preferred timing transmission of acquisition module and application pulse signal, and
Corresponding acquisition under this pulse signal Feed contact net to the transient current between rail.
In addition, above-mentioned lightning arrester monitoring device can also include display unit, which is used for the acquisition mould
Block, memory module, module occurs for instruction and the state of control module gives real-time display, thus convenient for center controllers
It grasps and handles in real time.
To sum up, contemplated Feed contact net fault location system passes through and combines magnetic-suspension tractive power supply system through the invention
The application and work characteristics of itself mutually cope with its overall construction composition and have re-started design, especially fully considered when short
Road fault point distance traction substation farther out when, short circuit current rises that change rate is smaller, current amplitude is also smaller, cause to be easy with
Multimachine vehicle takes stream to cause the technical issues of obscuring simultaneously, and thus, it is possible to realize in order to manipulate, in high precision with efficient mode
To the positioning of the short trouble of magnetic suspension tractive power supply system, and the applied field for being particularly suitable for middle low speed magnetic suspension engineering etc
It closes.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of Feed contact net fault location system based on impulse method, which includes acquisition
Module, judgment module and control unit occur for module, memory module, instruction, it is characterised in that:
The quantity of the acquisition module be it is multiple, they are arranged in along entire magnetic-levitation along proportional spacing, and are used for
Then sampling data synchronization is transferred to the control list to the transient current between rail by timing acquiring Feed contact net
Member；
The memory module is connected with the judgment 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 index is presented in the short circuit current curve
The form of function curve；
Described instruction occurs module and is connected with the judgment module signal, is used for extraneous multimachine vehicle while the situation of stream being taken to hold
Then the case instructions of sampling monitoring are periodically sent to the judgment module by the monitoring of row real-time sampling；The judgment module then after
It is continuous to determine whether to occur multimachine vehicle while taking stream, and will determine that result is transferred to described control unit；
Described control unit will be on the short circuit current curve of sampled data and the memory module from the acquisition module
Corresponding current value is compared one by one, in combination with the judgement from the judgment module as a result, thus determining that short circuit event occurs
Barrier or multimachine vehicle take stream simultaneously, and in the case where determining to occur short trouble according to the present position of the acquisition module
Realize the positioning to short circuit trouble point.
2. the Feed contact net fault location system based on impulse method as described in claim 1, which is characterized in that the acquisition
Module is arranged in along entire 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, which is characterized in that described
The mode for the short circuit current curve negotiating simulation test that memory module prestores obtains.
4. the Feed contact net fault location system based on impulse method as claimed in claim 1 or 2, which is characterized in that described
Acquisition module is set to timing transmission and applies pulse signal, and accordingly acquires under this pulse signal Feed contact net to walking
Transient current between row rail.
5. the Feed contact net fault location system based on impulse method as claimed in claim 3, which is characterized in that the acquisition
Module is set to timing transmission and applies pulse signal, and accordingly acquires under this pulse signal Feed contact net to rail
Between transient current.
6. the Feed contact net fault location system based on impulse method as claimed in claim 1 or 2, which is characterized in that above-mentioned
Feed contact net fault location system further includes display module, which is used for the acquisition module, memory module, refers to
The state that module and control unit occurs is enabled to give real-time display.
7. the Feed contact net fault location system based on impulse method as claimed in claim 3, which is characterized in that above-mentioned feed
Contact net fault location system further includes display module, which is used to send out the acquisition module, memory module, instruction
The state of raw module and control unit gives real-time display.
8. the Feed contact net fault location system based on impulse method as claimed in claim 4, which is characterized in that above-mentioned feed
Contact net fault location system further includes display module, which is used to send out the acquisition module, memory module, instruction
The state of raw module and control unit gives real-time display.
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 |
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| Publication Number | Publication Date |
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| CN106443331A CN106443331A (en) | 2017-02-22 |
| CN106443331B true CN106443331B (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048384B (en) * | 2019-05-14 | 2021-05-25 | 国网北京市电力公司 | High-reliability self-healing method and system for distribution network |
| CN110221181B (en) * | 2019-07-02 | 2020-06-16 | 西南交通大学 | Method for positioning fault AT section short circuit point of full-parallel AT traction power supply system |
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 |
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| CN106443331A (en) | 2017-02-22 |
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