CN205643598U - High -speed railway pulls AT trouble range unit of net suitable for different methods of operation - Google Patents
High -speed railway pulls AT trouble range unit of net suitable for different methods of operation Download PDFInfo
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- CN205643598U CN205643598U CN201620319585.8U CN201620319585U CN205643598U CN 205643598 U CN205643598 U CN 205643598U CN 201620319585 U CN201620319585 U CN 201620319585U CN 205643598 U CN205643598 U CN 205643598U
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- module
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- speed railway
- range finding
- fault location
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Abstract
The utility model provides a high -speed railway pulls AT trouble range unit of net suitable for different methods of operation, device hardware mainly includes: exchange the module, open the module, leave module, panel module, CPU module, power module. The CPU module with the interchange module open the module leave the module with the panel module links to each other. The utility model provides a fault locating and trouble direction and fault type that the high -speed railway of AT power supply mode pull the net differentiate the function to providing simultaneously and having used the power supply arm as remote control and the telemetering measurement function of the ranging system of unit, can satisfy the comprehensive requirement of fault locating that high -speed railway drew the net, measurement, control, the data acquisition time delay is hanged down, the practicality by force, functionally complete.
Description
Technical field
The present invention relates to high-speed railway tractive power supply system field.The device of its design achieves high-speed railway Traction networks not
With the fault location under the method for operation, fault type and fault direction discrimination function.
Background technology
" the 13 " planning outline (draft) put into effect in the recent period proposes to strengthen great infrastructure construction, to the year two thousand twenty
High ferro revenue kilometres reach 30,000 kilometers, the big city of covering more than 80%.In the end of the year 2015, the operation of domestic high ferro
Journey has reached 1.9 ten thousand kilometers, if the year two thousand twenty high ferro operation mileage to be realized reaches 30,000 kilometers, then needs not
1.1 ten thousand kilometers are increased newly in coming 5 years.High-speed railway will obtain bigger development in the coming five years, and all-parallel AT traction system
Railway transportation, as the pith of high-speed electric railway tractive power supply system, is supplied by the electrification railway contact net of mode
Electricity safe and stable operation plays very important effect.Taking stream owing to using pantograph to slide, contact net probability of malfunction is very
High.Whether instantaneity or permanent fault, quickly repairs circuit most important to the reliability ensureing power supply.Therefore
Special AT fault location device has obtained the biggest application.
AT fault location device uses corresponding range measurement principle for different running method, it is possible to quickly measure position, trouble point
Putting, determine fault type and fault direction, the normal power supply for high-speed railway Traction networks provides guarantee reliably.Due to
The locomotive density of high-speed railway is big, the load reason such as heavily, it is possible in time to fault location after breaking down, be to range finding
The most basic requirement of device, additionally in circuit maintenance process, for guaranteeing that the circuit in non-faulting direction can be properly functioning,
Traction networks will be switched to the special method of operation, and range unit should possess the fault localization merit under this new method of operation
Energy.
At present, the range unit of high-speed railway application can be suitable for all-parallel AT traction system mode, but can adapt to different fortune
Fault location device under line mode is few, and can not realize the measurement monitoring of the line related electric current of whole supply arm and open
Close distant control function, it is impossible to well meet the operation demand of high-speed railway Traction networks.
Summary of the invention
For above-mentioned technical problem, the present invention proposes the AT of a kind of high-speed railway Traction networks being applicable to different running method
Fault location device.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
1, fault location device hardware scheme, device entirety capacity of resisting disturbance is stronger.
Device hardware has mainly comprised: exchange module, CPU module, panel module, opens into module, output module, electricity
Source module.
Exchange module: include the input of multiple voltage and electric current input circuit；
Opening into module: provide multichannel intake, all intakes all carry out electrical isolation by optocoupler after entering device；
Outputing module: provide the multichannel amount of outputing, all amounts of outputing all export with relay idle contact form；
Panel module: include display and input through keyboard；
CPU module: with exchange module, open into module, output module dough-making powder template die part be connected；
Power module: multipath voltage regulation power supply is provided, powers to each module；
CPU module includes ethernet interface, accesses electric substation automation system by ethernet interface；
CPU module also includes special range finding communications network interface, for sending and receive range finding communication message, filters non-
Range finding communication message, improves range finding communication reliability；
Fault location device accesses special ranging passage, the survey on same supply arm by special range finding communications network interface
Communicated by special ranging passage away from device.
Also including GPS receiver module: be integrated in CPU module, during by receiving GPS pair, signal realizes fault survey
Synchronous communication away between device.
Wherein, communicated by SPI interface between CPU module and panel module, it is to avoid CPU module is substantial amounts of always
Line draws outward, improves the reliability of device.
2, using special range finding communications network interface, communication delay is low, and data acquisition time delay is little.
Device is provided with special range finding communications network interface on CPU module, is used for accessing special ranging passage, fall
Di Liao electric substation and AT subregion in one's power range unit between communication delay, it is ensured that the accuracy of measurement data and
Synchronicity.Range unit on same supply arm is communicated by special ranging passage.
Owing to the fault location device of same supply arm connects via range finding communication line by special intercommunication stipulations, institute
Can be monitored the current acquisition data of other each range units by the fault location device residing for power transformation.When monitoring electricity
Amount abnormal conditions, it will send warning information.
Device be equipped with output module, can pass through in background monitoring system or the dispatching patcher in a distant place, opening by device
The idle contact going out relay is remotely controlled operation to line switching.
The method have the advantages that
1, present invention achieves the fault location of the high-speed railway Traction networks of AT power supply mode and fault direction and failure classes
Type discrimination function, device entirety capacity of resisting disturbance is stronger.
2, present invention achieves remote control and the telemetry function of range-measurement system in units of supply arm, it is possible to meet high-speed iron
The fault location of road Traction networks, the composite request measured, control, practical, fully functional.
3, present invention achieves special range finding communications network interface, communication delay is low, and data acquisition time delay is little.
4, the present invention is capable of the distant control function of related switch on supply arm.
5, the fault location device perfect in shape and function of the present invention, automatic control function are complete, adapt to high-speed railway various
The different methods of operation, this is to helping user to determine abort situation accurately and rapidly, shortens power off time and recovers in time to supply
Electricity, it is ensured that the stability of power supply is significant.Utilization has a extensive future.
Accompanying drawing explanation
Fig. 1 is the hardware structure diagram of fault location device in the embodiment of the present invention；
Fig. 2 is the system layout of fault location device in the embodiment of the present invention.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, the present invention is made further with accompanying drawing below in conjunction with embodiment
Bright.
1, hardware scheme
The aspects such as each module is designed by this device, program execution, signal designation, communication realization have all taken into full account anti-interference
Requirement, device entirety capacity of resisting disturbance is relatively strong, is not required to install other anti-interference device additional during group screen, and hardware is mainly by handing over
Stream module, CPU module, panel module, open into module, output module, power module etc. composition.
Each module relation is shown in Fig. 1, and each module function is as follows:
● exchange module provides the input of multiple voltages and electric current input circuit, when calculating for fault distance；
● CPU module: the core module of device, its function includes that the sampling of analog data and process, fault localization are calculated
Method, open into scanning, signal output and panel module and monitoring system communication, receive GPS pair time the basic training such as signal
Can, it is possible to achieve the troubleshooting function of various complexity.This module is integrated with GPS receiver module, is used for receiving GPS
Pair time signal.This module provides ethernet interface and accesses electric substation automation system, and provides special range finding to lead to
Communication network interface, is used for accessing special ranging passage, receives the data message of other range units of same supply arm.Specially
Range finding communications network interface, it is possible to the range finding communication message between sending and receiving device, and can filter non-ranging logical
Letter message, improves range finding communication reliability.
● panel module: be responsible for the function such as Data inputing, liquid crystal display.Module provides Chinese LCD and keyboard
Input, man machine interface is the most understandable, convenient and simple for operation.SPI interface is passed through between panel module and CPU module
Communicate, it is to avoid draw outside CPU module substantial amounts of bus, improve the reliability of device.
● opening into module: module provides multichannel intake, all intakes are all carried out electrically by optocoupler after entering device
Isolation.
● outputing module: module provides the multichannel amount of outputing, all amounts of outputing all export with relay idle contact form.
● power module: multipath voltage regulation power supply is provided, powers to device module.
2, the system configuration of fault location device
As in figure 2 it is shown, for the AT tractive power supply system of high-speed railway, configure 2 surveys at traction substation
Away from device (A type) respectively for the supply arm range finding in 2 directions of up-downgoing, configured 1 survey at AT along the line
Away from device (Type B), subregion is configured 2 range units (Type B).A type device is different with Type B apparatus function, tool
Body difference is as follows: A type device is integrated with of ac data acquisition, fault localization function on, sends range finding calling message
And the function such as fault distance calculating is in one；Type B device then can Real-time Collection of ac data, and receive and response
The range finding calling message of A type device.Range unit on same supply arm is communicated by special ranging passage, and exchange is handed over
Flow measurement data and automatically control data.A type on same supply arm and the range finding system of Type B device composition complete set
System.Concrete configuration is as shown in Figure 2.
Device gathers 8 road electric currents and includes up feeder line T line current IT1, up feeder line F line current IF1, descending feeder line T
Line current IT2, descending feeder line F line current IF2, standby T line current ITB, standby F line current IFB, suct electric current
IG1, suct electric current IG2.2 road voltages of device collection include T line voltage UT1, F line voltage UF1.
3, major failure range measurement principle explanation
The selection of this device range measurement principle is meant to ensure that the fault localization that can be applicable to high-speed railway Traction networks, range measurement principle
Simple and reliable, for the different high-speed railway methods of operation, use different range measurement principles.When circuit communication port along the line
In the case of possessing, when occurring T-R or F-R fault under AT power supply mode, " AT neutral point sucts current ratio in employing
Principle " calculate fault distance；When T-F fault occurs under AT power supply mode, " TF current ratio principle " is used to calculate
Fault distance；When T-R, F-R or T-F fault occurs under direct-furnish mode, " linear reactance method " is used to find range.
If only have end up-downgoing parallel connection on supply arm, " up-downgoing current ratio method " can be used to find range.The most permissible
Guaranteeing when circuit dissimilar fault occurs under different running method, device can use corresponding principle to find range.
1) AT neutral point sucts current ratio principle
When there is T-R or F-R fault, neighbouring two the AT neutral points in trouble point suct the ratio of electric current and trouble point from
The distance of 2 AT is inversely, and on whole supply arm all AT suct the maximum of electric current occur in therefore
Barrier point two ends.Actual proof, both sides, trouble point AT sucts the ratio of electric current with the distance between trouble point and 2 AT not
Preferable inverse relation, and rail leakage reactance, AT self coupling becomes leakage reactance, feeder line length, rail couple conduction situation etc. because of
Have pass.In view of case above, it is modified sucting current ratio principle formula, i.e. can be used for the fault localization of reality.
2) TF current ratio principle
When AT power supply mode circuit occurs T-F type fault between electric substation and AT institute, device uses electric substation
The ratio of the up-downgoing TF resultant current at place calculates fault distance.When AT power supply mode circuit is in AT institute and subregion institute
Between occur T-F type fault time, device use AT institute with subregion synthesis T line current ratio calculate fault away from
From.
3) linear reactance method
" linear reactance method " is applicable to the fault localization under the direct-furnish method of operation, uses piece-wise linearization reactance to approach, this
Device is applicable to the feeder line that Linear Segmentation is at most divided into 10 sections.Device accesses T line and the F line electricity of feeder line up-downgoing
Stream, is respectively used to measure the T-R under the direct-furnish method of operation, fault distance during F-R, T-F type short circuit.
4) up-downgoing current ratio method
" up-downgoing current ratio method " calculates fault distance by using the up-downgoing TF resultant current ratio of electric substation.
The method is suitable for electric arm does not has special ranging passage, and the situation that only end up-downgoing is in parallel along the line.
4, the range unit (A type) residing for power transformation and the range unit (B residing for AT subregion in one's power of same supply arm
Type) use GPS time adjustment function to realize the synchronization of communication.Every table apparatus installs GPS receiver module, is used for receiving GPS
Special timing device pair time signal.When be short-circuited on circuit fault time, range unit residing for power transformation judge be now
No meet entry condition, as met, then start range unit, and found range to other Type Bs along the line by communication port simultaneously
The startup message of hair band markers under device, after other Type B range units receive startup message, calculates at fault moment
The virtual value of of ac, and send to the range unit residing for power transformation.Thus the synchronization realizing many table apparatus of ac is adopted
Collection.When using GPS pair, the advantage of synchronous method is, it doesn't matter with the route communicated in the synchronization of sampling, amount of calculation ratio
Less.It cannot be guaranteed that under the conditions of the real-time of passage, required precision still can be met.
When the GPS time adjustment function of device goes wrong, " Sudden Changing Rate startup " function can be used to ensure that range finding is opened
The synchronous acquisition of each table apparatus data on circuit time dynamic.After " Sudden Changing Rate startup " function puts into, A type and Type B device lead to
Cross the feature that fault moment line voltage distribution falls simultaneously or rise simultaneously and carry out precise synchronization data.
5, fault type and the discrimination function of fault direction are provided.
Range unit is according to the distribution situation of the line current of each near the position of trouble point and trouble point, and intelligence determines line
Road fault type and fault direction.
6, supply arm line related current measurement monitoring function is provided.
All range units on same supply arm use special communication protocol to carry out data exchange, the residing configuration of power transformation
Range unit can detect the route survey electric current that other range units gather.
7, the distant control function of related switch on supply arm is provided.
Fault location device possesses multiple outputs contact, for remote control in or the chopper of Traction networks or keep apart
Close.
Above embodiment is only the technological thought that the present invention is described, it is impossible to limit protection scope of the present invention with this, every
The technological thought proposed according to the present invention, any change done on the basis of technical scheme, each fall within the present invention and protect model
Within enclosing.The technology that the present invention is not directed to all can be realized by existing technology.
Claims (2)
1. it is applicable to the AT fault location device of the high-speed railway Traction networks of different running method, it is characterised in that including:
Exchange module: include the input of multiple voltage and electric current input circuit；
Opening into module: provide multichannel intake, all intakes all carry out electrical isolation by optocoupler after entering device；
Outputing module: provide the multichannel amount of outputing, all amounts of outputing all export with relay idle contact form；
Panel module: include display and input through keyboard；
CPU module: with described exchange module, described in open module, described in output module and described panel module and be connected；
Power module: multipath voltage regulation power supply is provided, powers to each module；
Described CPU module is communicated with described panel module by SPI interface, it is to avoid the described substantial amounts of bus of CPU module
Draw outward；
Described CPU module includes ethernet interface, accesses electric substation automation system by ethernet interface；
Described CPU module also includes special range finding communications network interface, for sending and receive range finding communication message,
Filter non-ranging communication message, improve range finding communication reliability；
Fault location device accesses special ranging passage, on same supply arm by described special range finding communications network interface
Range unit communicated by described special ranging passage.
Fault location device the most according to claim 1, it is characterised in that: described CPU module is also integrated with
GPS receiver module, during by receiving GPS pair, signal realizes the synchronous communication between fault location device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620319585.8U CN205643598U (en) | 2016-04-15 | 2016-04-15 | High -speed railway pulls AT trouble range unit of net suitable for different methods of operation |
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| CN201620319585.8U CN205643598U (en) | 2016-04-15 | 2016-04-15 | High -speed railway pulls AT trouble range unit of net suitable for different methods of operation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015102A (en) * | 2017-05-12 | 2017-08-04 | 武汉中直电气股份有限公司 | The distance-finding method and system of a kind of direct current rail transportation supply line short trouble |
| CN107356839A (en) * | 2017-06-14 | 2017-11-17 | 国电南瑞科技股份有限公司 | A kind of high-speed railway traction power supply gets over area's fault distance-finding method |
| CN110729708A (en) * | 2019-09-30 | 2020-01-24 | 国电南瑞科技股份有限公司 | High-speed railway traction network fault processing decision device based on Ethernet and E1 channel |
| CN111610409A (en) * | 2020-06-10 | 2020-09-01 | 天津凯发电气股份有限公司 | Distance measurement method for electric railway AT power supply system |
| CN112946419A (en) * | 2021-01-29 | 2021-06-11 | 西南交通大学 | Electrified railway AT fault distance measurement correction coefficient calculation method |
| CN112946420A (en) * | 2021-01-29 | 2021-06-11 | 西南交通大学 | Method for identifying fault position of AT section of electrified railway |
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2016
- 2016-04-15 CN CN201620319585.8U patent/CN205643598U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015102A (en) * | 2017-05-12 | 2017-08-04 | 武汉中直电气股份有限公司 | The distance-finding method and system of a kind of direct current rail transportation supply line short trouble |
| CN107356839A (en) * | 2017-06-14 | 2017-11-17 | 国电南瑞科技股份有限公司 | A kind of high-speed railway traction power supply gets over area's fault distance-finding method |
| CN107356839B (en) * | 2017-06-14 | 2020-11-10 | 国电南瑞科技股份有限公司 | High-speed railway traction power supply cross-region fault location method |
| CN110729708A (en) * | 2019-09-30 | 2020-01-24 | 国电南瑞科技股份有限公司 | High-speed railway traction network fault processing decision device based on Ethernet and E1 channel |
| CN110729708B (en) * | 2019-09-30 | 2022-01-28 | 国电南瑞科技股份有限公司 | High-speed railway traction network fault processing decision device based on Ethernet and E1 channel |
| CN111610409A (en) * | 2020-06-10 | 2020-09-01 | 天津凯发电气股份有限公司 | Distance measurement method for electric railway AT power supply system |
| CN111610409B (en) * | 2020-06-10 | 2022-06-07 | 天津凯发电气股份有限公司 | Distance measurement method for electric railway AT power supply system |
| CN112946419A (en) * | 2021-01-29 | 2021-06-11 | 西南交通大学 | Electrified railway AT fault distance measurement correction coefficient calculation method |
| CN112946420A (en) * | 2021-01-29 | 2021-06-11 | 西南交通大学 | Method for identifying fault position of AT section of electrified railway |
| CN112946420B (en) * | 2021-01-29 | 2021-11-23 | 西南交通大学 | Method for identifying fault position of AT section of electrified railway |
| CN112946419B (en) * | 2021-01-29 | 2022-03-08 | 西南交通大学 | Electrified railway AT fault distance measurement correction coefficient calculation method |
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