CN107346006A - Eliminate supply lines and up-downgoing electric current is powered on AT than method that ranging influences - Google Patents
Eliminate supply lines and up-downgoing electric current is powered on AT than method that ranging influences Download PDFInfo
- Publication number
- CN107346006A CN107346006A CN201710543635.XA CN201710543635A CN107346006A CN 107346006 A CN107346006 A CN 107346006A CN 201710543635 A CN201710543635 A CN 201710543635A CN 107346006 A CN107346006 A CN 107346006A
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- China
- Prior art keywords
- subregion
- ranging
- electric substation
- electric
- supply lines
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
-
- 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
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The invention discloses eliminate supply lines to power up-downgoing electric current than method that ranging influences to AT, including electric substation's range unit and ranging communicator, AT institute's range units and ranging communicator, subregion institute's range unit and ranging communicator, comprise the following steps, step 1：During line failure, electric substation failure communicator send broadcasting packet calling AT institutes and subregion data；Step 2：AT and subregion institute's communication equipment by electric substation's IP address for being provided at its inner portion, send message returned data to the communicator of electric substation；Step 3：The fault location device of electric substation receive AT and subregion message returned data, judge AT power supply modes now, trouble point T, F or TF drawn by AT power supply modes；Supply lines can be eliminated up-downgoing electric current is powered on AT than ranging influence；Under AT electric power thus supplieds, fault localization can reach very high precision.
Description
Technical field
The present invention relates to electric railway field, and in particular to eliminates supply lines and up-downgoing electric current is powered to AT than ranging shadow
Loud method.
Background technology
Under AT power supply modes, up-downgoing electric current is a kind of conventional distance-finding method than principle, and up-downgoing electric current is than ranging not
Being leaked over the ground by AT leakage reactances and rail is influenceed, and without the influence of communication synchronization, can reach the high precision of comparison.But
For up-downgoing electric current than ranging formula when deriving, the distribution of impedance for assuming that electric power system is average, but in electric substation and is divided
Area by have to upper site the presence of supply lines, impedance and the contact net of supply lines have very big difference, can thus made
Up-downgoing electric current produces bigger error than ranging.The present invention is exactly using certain algorithm, eliminates supply lines and AT is powered
Up-downgoing electric current influences than ranging.
The content of the invention
The technical problems to be solved by the invention are overcome the deficiencies in the prior art, improve essence of the up-downgoing electric current than ranging
Degree powers up-downgoing electric current on AT than the method that ranging influences, and it is an object of the present invention to provide eliminating supply lines, solves to overcome prior art
Deficiency, improve up-downgoing electric current than ranging precision the problem of.
The present invention is achieved through the following technical solutions：
Eliminate supply lines and up-downgoing electric current is powered on AT than the method that ranging influences, including electric substation's range unit and ranging
Communicator, AT institute's range units and ranging communicator, subregion institute's range unit and ranging communicator, including following step
Suddenly, step 1：During line failure, electric substation failure communicator send broadcasting packet calling AT institutes and subregion data；
Step 2：AT and subregion institute's communication equipment by electric substation's IP address for being provided at its inner portion, sent to the communicator of electric substation
Message returned data；Step 3：The fault location device of electric substation receive AT and subregion institute message returned data, judgement
Go out AT power supply modes now, trouble point T, F or TF are drawn by AT power supply modes；Step 4：When T breaks down, by formula
(1) fault distance is calculated：
When F breaks down, fault distance is calculated by formula (2)：
When TF breaks down, fault distance is calculated by formula (3)：
In formula,Electric current is fed out for electric substation is descending,Electric current is fed out for electric substation is up, D is power supply arm lengths,
L1, L2, L3 are respectively that electric substation, AT institutes, subregion are powered line length, LTFor the equivalent T line lengths of anti-thunder circle, LFFor anti-thunder circle etc.
Imitate F line lengths, LTFFor the equivalent TF line lengths of anti-thunder circle, LSST、LATT、LSPTFor electric substation, AT institutes, subregion the equivalent T of supply lines
Line length, LSSF、LATF、LSPFFor electric substation, AT institutes, subregion the equivalent F line lengths of supply lines, LSSTF、LATTF、LSPTFFor power transformation
Institute, AT institutes, subregion the equivalent TF line lengths of supply lines.
Above-mentioned 3 formula are that failure is in the first AT section algorithms under full parallel way, such as the failure under AT institutes off-the-line mode,
L1+L2 replaces with L1+L3.
Electric substation, AT be in one's power between subregion institute in the step 1, laying thus survey designated lane, interface uses FE electrical interfaces.
Specifically communication mode is：Electric substation, AT between subregion institute, lay in one's power therefore survey designated lane, interface shape is generally FE electricity
Interface, electric substation, AT and subregion be respectively configured it is special thus survey communicator.
In the step 3, when power supply arm lengths are equal to the first AT segment length, D=d；Power supply arm lengths are equal to the first AT sections
During with the 2nd AT segment length sums, D=d-2*L2, the supply lines in 3 formula of the above is equivalent to the length of contact net, utilizes confession
The impedanoe ratio of electric wire and contact net is converted.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention eliminates supply lines and up-downgoing electric current is powered on AT than the method that ranging influences, and can eliminate supply lines pair
AT powers up-downgoing electric current than ranging influence；
2nd, the present invention eliminates supply lines and up-downgoing electric current is powered on AT than the method that ranging influences, under AT electric power thus supplieds,
Fault localization can reach very high precision；
3rd, the present invention eliminates supply lines and up-downgoing electric current is powered on AT than the method that ranging influences, can after breaking down
Abort situation is quickly and accurately found out, can will in large quantities save the manpower and materials of trouble-shooting point.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of one specific embodiment of fault localization system of the present invention；
Fig. 2 is the schematic diagram of AT power supply modes contact net of the present invention short circuit；
Fig. 3 is a supply arm supply lines distribution map of the invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As shown in figure 1, the present invention, which eliminates supply lines, powers up-downgoing electric current on AT than the method that ranging influences, including power transformation
Institute's range unit and ranging communicator, AT institute's range units and ranging communicator, subregion institute's range unit and ranging communication
Device.The ranging supervisor of electric substation sends commands to AT institutes, subregion institute, and the data of answer again return to the AT surveys of electric substation
Device is controlled, completing ranging by it is calculated, and backstage and scheduling will be sent in result.As shown in Fig. 2 short trouble occurs for contact net circuit
When, AT and subregion fault location device by failure communicator and passage, running status during failure is sent to change
Electricity fault location device；Each gather failure operation state parameter during 80ms after failure occurs.SS is change in Fig. 2
Electric institute, ATP are AT institutes, and SP is subregion institute, and It1, If1, It2, If2 are the electric current that electric substation's up-downgoing is fed out respectively, and D1, D2 divide
Not Wei 1AT sections and 2AT sections distance.L is supply arm total length, X be trouble point to AT distance；
In following equation,Electric current is fed out for electric substation is descending,Electric current is fed out for electric substation is up, D is supply arm
Length, L1, L2, L3 are respectively that electric substation, AT institutes, subregion are powered line length, LTFor the equivalent T line lengths of anti-thunder circle, LFFor anti-thunder
Enclose equivalent F line lengths, LTFFor the equivalent TF line lengths of anti-thunder circle, LSST、LATT、LSPTFor electric substation, AT institutes, subregion supply lines
Equivalent T line lengths, LSSF、LATF、LSPFFor electric substation, AT institutes, subregion the equivalent F line lengths of supply lines, LSSTF、LATTF、LSPTF
For electric substation, AT institutes, subregion the equivalent TF line lengths of supply lines.
Embodiment 1：
The fault location device of electric substation receive AT and subregion institute message returned data, judge now AT confession
Electrically, trouble point T is drawn by AT power supply modes；
When T breaks down, fault distance is calculated by formula (1)：
Fault distance section D calculating, as shown in figure 3, S1, S2, S3 are respectively electric substation, AT institutes, site on subregion
Kilometer post, L1, L2, L3 are respectively that electric substation, AT institutes, subregion are powered line length, and the first AT segment length (D1) is L1+S2-S1+
L2, the 2nd AT sections (D2) length (D1) are L2+S3-S2+L3
Finally trouble point kilometer post is calculated, when kilometer post direction is big mileage (+)：Trouble point kilometer is designated as：S1+(L-
L1)；L is trouble point relative distance, when kilometer post direction is small mileage (-)：Trouble point kilometer is designated as：S1-(L-L1)；L is event
Barrier point relative distance.
Embodiment 2：
Difference from Example 1 is, when F breaks down, fault distance is calculated by formula (2)：
Embodiment 3：
Difference from Example 1 is, when TF breaks down, fault distance is calculated by formula (3)：
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (3)
1. eliminate supply lines to lead to AT power supply up-downgoing electric currents than the method that ranging influences, including electric substation's range unit and ranging
T unit, AT institute's range units and ranging communicator, subregion institute's range unit and ranging communicator, it is characterised in that：Bag
Include following steps,
Step 1：During line failure, electric substation failure communicator send broadcasting packet calling AT institutes and subregion number
According to；
Step 2：AT and subregion institute's communication equipment by electric substation's IP address for being provided at its inner portion, to the communicator of electric substation
Send message returned data；
Step 3：The fault location device of electric substation receive AT and subregion message returned data, judge AT now
Power supply mode, trouble point T, F or TF are drawn by AT power supply modes；
Step 4：When T breaks down, fault distance is calculated by formula (1)：
When F breaks down, fault distance is calculated by formula (2)：
When TF breaks down, fault distance is calculated by formula (3)：
In formula,Electric current is fed out for electric substation is descending,Electric current is fed out for electric substation is up, D is power supply arm lengths, L1,
L2, L3 are respectively that electric substation, AT institutes, subregion are powered line length, LTFor the equivalent T line lengths of anti-thunder circle, LFFor the anti-equivalent F of thunder circle
Line length, LTFFor the equivalent TF line lengths of anti-thunder circle, LSST、LATT、LSPTFor electric substation, AT institutes, subregion the equivalent T lines of supply lines
Length, LSSF、LATF、LSPFFor electric substation, AT institutes, subregion the equivalent F line lengths of supply lines, LSSTF、LATTF、LSPTFFor power transformation
Institute, AT institutes, subregion the equivalent TF line lengths of supply lines.
2. elimination supply lines according to claim 1 is powered on AT, up-downgoing electric current is than the method that ranging influences, its feature
It is：Electric substation, AT be in one's power between subregion institute in the step 1, laying thus survey designated lane, interface uses FE electrical interfaces.
3. elimination supply lines according to claim 1 is powered on AT, up-downgoing electric current is than the method that ranging influences, its feature
It is：In the step 3, when power supply arm lengths are equal to the first AT segment length, D=d；Arm lengths of powering are equal to the first AT sections and the
During two AT segment length sums, D=d-2*L2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543635.XA CN107346006B (en) | 2017-07-05 | 2017-07-05 | It eliminates supply lines and powers uplink and downlink electric current than method that ranging influences to AT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543635.XA CN107346006B (en) | 2017-07-05 | 2017-07-05 | It eliminates supply lines and powers uplink and downlink electric current than method that ranging influences to AT |
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| Publication Number | Publication Date |
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| CN107346006A true CN107346006A (en) | 2017-11-14 |
| CN107346006B CN107346006B (en) | 2019-09-20 |
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| CN201710543635.XA Active CN107346006B (en) | 2017-07-05 | 2017-07-05 | It eliminates supply lines and powers uplink and downlink electric current than method that ranging influences to AT |
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Cited By (5)
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| CN108152669A (en) * | 2017-12-06 | 2018-06-12 | 中国铁建电气化局集团第五工程有限公司 | The method that high ferro dimension pipe traction substation promotes fault localization precision |
| 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 |
| CN113595247A (en) * | 2021-08-05 | 2021-11-02 | 成都交大许继电气有限责任公司 | Centralized monitoring system of electrified railway traction substation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152669A (en) * | 2017-12-06 | 2018-06-12 | 中国铁建电气化局集团第五工程有限公司 | The method that high ferro dimension pipe traction substation promotes fault localization precision |
| CN108152669B (en) * | 2017-12-06 | 2021-03-30 | 中国铁建电气化局集团第五工程有限公司 | Method for improving fault location precision of high-speed rail traction substation |
| 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 |
| CN113595247A (en) * | 2021-08-05 | 2021-11-02 | 成都交大许继电气有限责任公司 | Centralized monitoring system of electrified railway traction substation |
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| CN107346006B (en) | 2019-09-20 |
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