CN109142964A - A kind of definite value automatic setting method of high-speed railway fault location device - Google Patents
A kind of definite value automatic setting method of high-speed railway fault location device Download PDFInfo
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- CN109142964A CN109142964A CN201710457777.4A CN201710457777A CN109142964A CN 109142964 A CN109142964 A CN 109142964A CN 201710457777 A CN201710457777 A CN 201710457777A CN 109142964 A CN109142964 A CN 109142964A
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- location device
- fault
- definite value
- fault location
- fault localization
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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
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
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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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- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of definite value automatic setting methods of high-speed railway fault location device, the period that daily morning dynamic inspection train detects contact net routine, the parameters such as electric current ratio, uplink and downlink electric current ratio, horizontal-associate line current ratio are sucted according to the calling interval synchronization acquisition of setting and are stored to buffer area, device automatically generates fault localization parameter list and waits user's manual confirmation after dynamic inspection vehicle group leaves this supply arm, selectable portion or ranging parameters table is completely covered to fault location device definite value after confirmation.The present invention solves the problems, such as that fault localization definite value is difficult to adjust, and can automatically generate fault localization parameter list, improves the fault localization precision in the non-homogeneous section of line parameter circuit value.Reduce fault localization short circuit experiment number, saves a large amount of human costs and time cost needed for short-circuit test repeatedly.It only needs to carry out maintenance work to fault localization parameter to the period that contact net routine detects using dynamic inspection train of daily morning, just can increase fault location device precision.
Description
Technical field
The present invention relates to high-speed railway traction power supply technical field more particularly to a kind of high-speed railway fault location devices
Definite value automatic setting method.
Background technique
Electric railway is electric system responsible consumer, and with its fast development, the capacity of Traction Station constantly increases, access electricity
Pressure grade is also being continuously improved, and especially high-speed railway, supply voltage grade are 220kV or more, and low-pressure side generallys use elder generation
Into but complicated AT (auto-transformer) powering mode, the above variation is so that the electrical transient characterisitics of ferroelectric are increasingly complex.
In terms of high-speed rail Traction networks fault localization, parameter is more, Traction networks electricity because being related to for the fixed value adjusting of fault location device
Resist non-linear, this, which allows for definite value, has larger impact for fault localization result, while fixed value adjusting being made to become fault localization
A particularly important link of device.The usually empirically value adjusting of present high-speed railway fault localization parameter, but due to tunnel, stand
Etc. influence, line parameter circuit value is practical simultaneously uneven, it is larger to may cause range error, and later period adjusting parameter is difficult, to leading
The reliability for drawing net fault location device brings hidden danger.
It proposes suitable fault localization fixed value adjusting, and is applied in high-speed railway tractive power supply system, to guarantee
The safe, reliable, efficient transport that tractive power supply system is in good operating condition and the railway system all has great importance.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide a kind of high-speed railway events
Hinder the definite value automatic setting method of range unit, to overcome the electricity of the Traction networks as caused by tunnel, yard etc. in Traction networks route
Resist non-linear, fault location device definite value is difficult to the problem of adjusting.
To achieve the above object, the present invention provides a kind of definite value automatic adjusting sides of high-speed railway fault location device
Method, comprising the following steps:
The period that contact net routine is detected using dynamic inspection train of daily morning, after train enters corresponding supply arm,
By jump-value of current starting traction in fault location device load record function；
Start load data writing function, traction in fault location device by ranging Channel Synchronous acquire failure survey
Away from supplemental characteristic, to form fault localization parameter list 1；
It, will by comparing the temporal information of Train-borne recorder if this time having used Train-borne recorder during load record
Corresponding load record forms failure and surveys in conjunction with the location information of the Train-borne recorder at this moment in fault localization parameter list 1
Away from parameter list 2；If this time judging this load data by the discrete irrelevance of calculating current without using Train-borne recorder
Whether record reasonable；
Fault localization parameter list 2 pushes relevant information, the data reasonability of manual confirmation fault localization parameter list 2 to backstage
Afterwards, fault localization parameter list 2 is covered the fault localization definite value of fault location device Operational Zone by artificial selection or original is modified in part
The fault localization definite value of Operational Zone, the dynamic inspection train load data of fault location device push to monitoring system.
The definite value automatic setting method of above-mentioned a kind of high-speed railway fault location device, which is characterized in that according to failure
Ranging parameters table 2 generates dynamic inspection train and surveys load data figure.
A kind of definite value automatic setting method of above-mentioned high-speed railway fault location device, which is characterized in that the calculating
The discrete irrelevance of electric current specifically:
S=I1+I2+I3+…+In
In formula:
I1、I2、I3…InIndicate per second by the collected load current in ranging channel；
δ is the discrete irrelevance of load current, is equal to 3%；When the discrete irrelevance of the load current being calculated is less than 3%
When, then determine that load record data are effective, vehicle can be regarded as drive at a constant speed at this time, passes through the time data and confession of load record
The length of electric arm can calculate the location information of vehicle；If the discrete irrelevance of the load current being calculated is greater than 3%, assert
This time load data is invalid.
A kind of definite value automatic setting method of above-mentioned high-speed railway fault location device, which is characterized in that the failure
Settable calling interval time, can set according to field channels situation when ranging range unit is by ranging channel acquisition synchrodata
Set the calling interval of 1s to 20s.
A kind of definite value automatic setting method of above-mentioned high-speed railway fault location device, which is characterized in that the failure
Ranging parameters data include but is not limited to: electric substation's feeder voltage, electric substation's uplink and downlink feeder current, AT institute and subregion institute electricity
Pressure, AT institute and subregion institute uplink and downlink electric current and electric current is sucted, sucts current ratio, uplink and downlink electric current ratio with by what is be calculated
Value and horizontal-associate current ratio.
It is above-mentioned by jump-value of current starting traction in fault location device load record function, specially
Δ I=Δ I1-KK235·I1h
Δ I=I1h-I1q-KK235·I1h
ΔI≥(1+K235)·I1h
In formula: I1q,I1h--- vehicle enters two moment of front and back fundamental current；
K235=(I2+I3+I5+I7)/I1For comprehensive harmonic content；
K=Int (10*K235) it is Adaptive Suppression coefficient；
Δ I is that fault location device variable quantity starts definite value.
1. the present invention solves the problems, such as that fault localization definite value is difficult to adjust, fault localization parameter list can be automatically generated, is mentioned
The high fault localization precision in the non-homogeneous section of line parameter circuit value.
2. reducing fault localization short circuit experiment number.Because fault location device definite value is difficult to adjust, only pass through traction
The reasonability of net short-circuit test validation fault ranging definite value repeatedly.Present invention saves a large amount of manpowers needed for short-circuit test repeatedly
Cost and time cost.
3. facilitating the maintenance in fault location device later period.The present invention is only needed using dynamic inspection train of daily morning to contact
The period of the customary detection of net carries out maintenance work to fault localization parameter, just can increase fault location device precision.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, with
It is fully understood from the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is flow diagram of the invention；
Fig. 2 is the dynamic inspection train load datagram that the present invention automatically generates；
Fig. 3 is dynamic inspection train traction net electrical schematic.
Specific embodiment
As shown in Figure 1, a kind of definite value automatic setting method of high-speed railway fault location device, comprising the following steps:
The period that contact net routine is detected using dynamic inspection train of daily morning, after train enters corresponding supply arm,
By jump-value of current starting traction in fault location device load record function；
Start load data writing function, traction in fault location device by ranging Channel Synchronous acquire electric substation
Voltage and uplink and downlink feeder current, AT institute are sucted with subregion institute voltage, AT institute and subregion institute uplink and downlink electric current, AT with subregion
Electric current sucts current ratio, uplink and downlink current ratio and horizontal-associate current ratio to be calculated, to form fault localization ginseng
Number table 1；
It, will by comparing the temporal information of Train-borne recorder if this time having used Train-borne recorder during load record
Corresponding load record forms failure and surveys in conjunction with the location information of the Train-borne recorder at this moment in fault localization parameter list 1
Away from parameter list 2；If this time judging this load data by the discrete irrelevance of calculating current without using Train-borne recorder
Whether record reasonable；
Fault localization parameter list 2 pushes relevant information, the data reasonability of manual confirmation fault localization parameter list 2 to backstage
Afterwards, fault localization parameter list 2 is covered the fault localization definite value of fault location device Operational Zone by artificial selection or original is modified in part
The fault localization definite value of Operational Zone, fault location device push dynamic inspection train load data as shown in Figure 2 to monitoring system.
In the present embodiment, dynamic inspection train is generated according to fault localization parameter list 2 and surveys load data figure.
In the present embodiment, the discrete irrelevance of the calculating current specifically:
S=I1+I2+I3+…+In
In formula:
I1、I2、I3…InIndicate per second by the collected load current in ranging channel；
δ is the discrete irrelevance of load current, is equal to 3%；When the discrete irrelevance of the load current being calculated is less than 3%
When, then determine that load record data are effective, vehicle can be regarded as drive at a constant speed at this time, passes through the time data and confession of load record
The length of electric arm can calculate the location information of vehicle；If the discrete irrelevance of the load current being calculated is greater than 3%, assert
This time load data is invalid, and concrete principle is as shown in Figure 3.
In the present embodiment, when the fault localization range unit is by ranging channel acquisition synchrodata between settable calling
Every the time, according to the calling interval of settable 1s to the 20s of field channels situation.
In the present embodiment, it is described by jump-value of current starting traction in fault location device load record function, tool
Body are as follows:
Δ I=Δ I1-KK235·I1h
Δ I=I1h-I1q-KK235·I1h
ΔI3(1+K235)·I1h
In formula: I1q,I1h--- vehicle enters two moment of front and back fundamental current；
K235=(I2+I3+I5+I7)/I1For comprehensive harmonic content；
K=Int (10*K235) it is Adaptive Suppression coefficient；
Δ I is that fault location device variable quantity starts definite value.
By above-mentioned technological means, the present invention solves the problems, such as that fault localization definite value is difficult to adjust, and can automatically generate event
Hinder ranging parameters table, improves the fault localization precision in the non-homogeneous section of line parameter circuit value.Reduce fault localization short circuit experiment
Number, saves a large amount of human costs and time cost needed for short-circuit test repeatedly.It only needs to utilize dynamic inspection train of daily morning
Maintenance work is carried out to fault localization parameter to the period of contact net routine detection, just can increase fault location device precision.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (6)
1. a kind of definite value automatic setting method of high-speed railway fault location device, which comprises the following steps:
The period that contact net routine is detected using dynamic inspection train of daily morning, after train enters corresponding supply arm, by electricity
Flow Sudden Changing Rate starting traction in fault location device load record function；
Start load data writing function, traction in fault location device by ranging Channel Synchronous acquire fault localization ginseng
Number data, to form fault localization parameter list 1；
If this time Train-borne recorder has been used during load record, by comparing the temporal information of Train-borne recorder, by failure
Corresponding load record forms fault localization ginseng in conjunction with the location information of the Train-borne recorder at this moment in ranging parameters table 1
Number table 2；If judging that this load data records by the discrete irrelevance of calculating current this time without using Train-borne recorder
Whether rationally；
Fault localization parameter list 2 pushes warning information to backstage, after the data reasonability of manual confirmation fault localization parameter list 2,
By artificial selection mode, the definite value in fault localization parameter list 2 is covered to the fault localization definite value of former Operational Zone, or part is repaired
Change the fault localization definite value of former Operational Zone, the dynamic inspection train load data of fault location device push to monitoring system.
2. a kind of definite value automatic setting method of high-speed railway fault location device as described in claim 1, which is characterized in that
Dynamic inspection train, which is generated, according to fault localization parameter list 2 surveys load data figure.
3. a kind of definite value automatic setting method of high-speed railway fault location device as described in claim 1, which is characterized in that
The discrete irrelevance of the calculating current specifically:
S=I1+I2+I3+…+In
In formula:
I1、I2、I3…InIndicate per second by the collected load current in ranging channel；
δ is the discrete irrelevance of load current, is equal to 3%；When the discrete irrelevance of the load current being calculated is less than 3%, then
Determine that load record data are effective, vehicle can be regarded as drive at a constant speed at this time, pass through the time data and supply arm of load record
Length can calculate the location information of vehicle；If the discrete irrelevance of the load current being calculated is greater than 3%, assert this time
Load data is invalid.
4. a kind of definite value automatic setting method of high-speed railway fault location device as described in claim 1, which is characterized in that
Settable calling interval time when the fault localization range unit is by ranging channel acquisition synchrodata, according to field channels
The calling interval of settable 1s to the 20s of situation.
5. a kind of definite value automatic setting method of high-speed railway fault location device as described in claim 1, which is characterized in that
The fault localization supplemental characteristic includes but is not limited to: electric substation's feeder voltage, electric substation's uplink and downlink feeder current, AT institute with point
Institute of area voltage, AT institute and subregion institute uplink and downlink electric current and electric current is sucted, sucts current ratio, uplink and downlink with by what is be calculated
Current ratio and horizontal-associate current ratio.
6. a kind of definite value automatic setting method of high-speed railway fault location device as described in claim 1, which is characterized in that
It is described by jump-value of current starting traction in fault location device load record function, specially
Δ I=Δ I1-KK235·I1h
Δ I=I1h-I1q-KK235·I1h
ΔI≥(1+K235)·I1h
In formula: I1q,I1h--- vehicle enters two moment of front and back fundamental current；
K235=(I2+I3+I5+I7)/I1For comprehensive harmonic content；
K=Int (10*K235) it is Adaptive Suppression coefficient；
Δ I is that fault location device variable quantity starts definite value.
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| CN201710457777.4A CN109142964B (en) | 2017-06-16 | 2017-06-16 | Fixed value automatic setting method of high-speed railway fault distance measuring device |
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| CN201710457777.4A CN109142964B (en) | 2017-06-16 | 2017-06-16 | Fixed value automatic setting method of high-speed railway fault distance measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111913123A (en) * | 2020-06-29 | 2020-11-10 | 中铁第一勘察设计院集团有限公司 | Method and device for identifying backflow state of traction power supply system |
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