CN103149489B - A kind of electric railway AT Traction networks broken string method of discrimination - Google Patents
A kind of electric railway AT Traction networks broken string method of discrimination Download PDFInfo
- Publication number
- CN103149489B CN103149489B CN201210454398.7A CN201210454398A CN103149489B CN 103149489 B CN103149489 B CN 103149489B CN 201210454398 A CN201210454398 A CN 201210454398A CN 103149489 B CN103149489 B CN 103149489B
- Authority
- CN
- China
- Prior art keywords
- value
- coupling section
- self coupling
- contact net
- negative feeder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001808 coupling Effects 0.000 claims abstract description 45
- 238000010168 coupling process Methods 0.000 claims abstract description 45
- 238000005859 coupling reaction Methods 0.000 claims abstract description 45
- 238000005259 measurement Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
Abstract
The invention discloses a kind of electric railway AT Traction networks broken string method of discrimination, its way mainly, within the scope of normal net pressure, if the absolute value of the current value at self coupling section n ' interior contact net T two ends be greater than setting value with value, and the absolute value of the current value at self coupling section n ' interior negative feeder F two ends be less than setting value with value, then judge self coupling section n ' interior negative feeder F broken string or out of service; If the absolute value of the current value at self coupling section n ' interior negative feeder F two ends be greater than setting value with value, and the absolute value of the current value at self coupling section n ' interior contact net T two ends be less than setting value with value, then judge self coupling section n ' interior contact net T broken string or out of service.The method can facilitate, reliably determine AT Traction networks interrupt line type and broken position, is convenient to process in time and safeguards, to improve the reliability of traction power supply.
Description
Technical field
The present invention relates to a kind of electric railway AT Traction networks broken string method of discrimination.
Background technology
Electric railway traction power supply system is made up of traction substation and Traction networks, and Traction networks is made up of contact net, train, rail (and ground).Traction networks generally adopts the simple direct feeding system of structure.For adapting to the operation demand of the high-power train of high-speed railway, Japan, high-speed railway Traction networks that is French and China all have employed autotransformer (AT) power supply mode.For strengthening power supply capacity further, China also all have employed the power supply mode of up-downgoing in autotransformer (AT) place's parallel connection on nearly 10,000km high-speed railways, is called all-parallel AT traction system mode.Due to the complicacy of the electric power networks that AT Traction networks is formed, and it is severe to be placed in the Nature condition of work, Traction networks disconnection fault occurs inevitable, needs correctly to judge AT Traction networks interrupt line type and broken position.
Summary of the invention
Object of the present invention is just to provide a kind of electric railway AT Traction networks broken string method of discrimination, the method can convenient, reliably determine AT Traction networks interrupt line type and broken position, be convenient to process in time and maintenance, to improve the reliability of traction power supply.
The present invention solves its technical matters, and the technical scheme adopted is: a kind of electric railway AT Traction networks broken string method of discrimination, the steps include:
The negative feeder magnitude of voltage that the contact net magnitude of voltage that the contact net T voltage-to-ground mutual inductor that A, measurement and control center's real-time synchronization gather autotransformer ATn place detects, negative feeder F voltage-to-ground mutual inductor detect; The current value at the contact net T two ends that measurement and control center's current transformer at contact net T two ends that also real-time synchronization gathers in each self coupling section n detects, the current value at the negative feeder F two ends that the current transformer at the negative feeder F two ends that real-time synchronization gathers in each self coupling section n detects; Wherein n is the sequence number of self coupling section, n=1,2,3 ..., N;
B, when the contact net magnitude of voltage at all autotransformer ATn places and negative feeder magnitude of voltage are all greater than setting, if the absolute value of the current value at self coupling section n ' interior contact net T two ends be greater than setting value with value, and the absolute value of the current value at self coupling section n ' interior negative feeder F two ends be less than setting value with value, measurement and control center then judge this self coupling section n ' interior negative feeder F break or out of service;
C, when the magnitude of voltage at all autotransformer ATn places is all greater than setting, if the absolute value of the current value at self coupling section n ' interior negative feeder F two ends be greater than setting value with value, and the absolute value of the current value at self coupling section n ' interior contact net T two ends be less than setting value with value, measurement and control center then judge this self coupling section n ' interior contact net T break or out of service.
Principle of work of the present invention is:
The present invention, by gathering the autotransformer place contact net T of each self coupling section and the voltage-to-ground value of negative feeder F and the current value at each self coupling section two ends, when each magnitude of voltage measured all is greater than setting, shows that the supply voltage of Traction networks is normal; If what have the absolute value of the current value at contact net T two ends in any self coupling section is greater than setting value with value, and in this self coupling section the current value at negative feeder F two ends absolute value be less than setting value with value, then show in this self coupling section, contact net T has normal current to pass through, and negative feeder F does not have due electric current pass through, thus judge negative feeder F broken string or out of service in this self coupling section; Equally, if arbitrarily in self coupling section the current value at negative feeder F two ends absolute value be greater than setting value with value, and in self coupling section the current value at contact net T two ends absolute value be less than setting value with value, then can to judge in self coupling section that contact net T breaks or out of service.
Compared with prior art, the invention has the beneficial effects as follows:
One, conveniently, reliably allow the operator on duty in electric substation or control room grasp Traction networks disconnection fault and particular location by measurement and control center, be convenient to process in time and safeguard, to improve the reliability of traction power supply.
Two, the present invention can be combined with Train Dispatching information further, strengthens controllability and the dirigibility of the Traction networks method of operation.
Three, the invention process is got up to invest less, both can be used for new line construction and has also been applicable to the transformation of old line.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Embodiment
Embodiment
Fig. 1 illustrates, a kind of embodiment of the present invention is: a kind of electric railway AT Traction networks broken string method of discrimination, the steps include:
The negative feeder magnitude of voltage that the contact net magnitude of voltage that the contact net T voltage-to-ground mutual inductor that A, measurement and control center's real-time synchronization gather autotransformer ATn place detects, negative feeder F voltage-to-ground mutual inductor detect; The current value at the contact net T two ends that measurement and control center's current transformer at contact net T two ends that also real-time synchronization gathers in each self coupling section n detects, the current value at the negative feeder F two ends that the current transformer at the negative feeder F two ends that real-time synchronization gathers in each self coupling section n detects; Wherein n is the sequence number of self coupling section, n=1,2,3 ..., N;
B, when the contact net magnitude of voltage at all autotransformer ATn places and negative feeder magnitude of voltage are all greater than setting, if in self coupling section n '=1 i.e. self coupling section 1 current value at contact net T two ends absolute value be greater than setting value with value, and in self coupling section 1 current value at negative feeder F two ends absolute value be less than setting value with value, measurement and control center then to judge in self coupling section 1 that negative feeder F breaks or out of service;
C, as all autotransformer ATn (n=1,2,3, ..., N) when the magnitude of voltage at place is all greater than setting, the absolute value of the current value at self coupling section n '=3 if (i.e. self coupling section 3) interior negative feeder F two ends be greater than setting value with value, and in self coupling section 3 current value at contact net T two ends absolute value be less than setting value with value, measurement and control center then to judge in self coupling section 3 that contact net T breaks or out of service.
Obviously, the specific occurrence that the n ' in the present invention is n is the sequence number that contact net T (or negative feeder F) there occurs broken string or self coupling section out of service, as in Fig. 1, and n '=1 or 3.
The method of operating of this example and step can be applicable to the single line AT Traction networks situation of Fig. 1, also can be applicable to the situation of the parallel connection of multiple line AT Traction networks end and the full Parallel AT Traction networks of multiple line.
Claims (1)
1. an electric railway AT Traction networks broken string method of discrimination, the steps include:
The negative feeder magnitude of voltage that the contact net magnitude of voltage that the contact net T voltage-to-ground mutual inductor that A, measurement and control center's real-time synchronization gather autotransformer ATn place detects, negative feeder F voltage-to-ground mutual inductor detect; The current value at the contact net T two ends that measurement and control center's current transformer at contact net T two ends that also real-time synchronization gathers in each self coupling section n detects, the current value at the negative feeder F two ends that the current transformer at the negative feeder F two ends that real-time synchronization gathers in each self coupling section n detects; Wherein n is the sequence number of self coupling section, n=1,2,3 ..., N;
B, when the contact net magnitude of voltage at all autotransformer ATn places and negative feeder magnitude of voltage are all greater than setting, if in self coupling section n' the current value at contact net T two ends absolute value be greater than setting value with value, and in self coupling section n' the current value at negative feeder F two ends absolute value be less than setting value with value, measurement and control center then to judge in this self coupling section n' that negative feeder F breaks or out of service; Wherein, n' is the specific occurrence of n;
C, when the magnitude of voltage at all autotransformer ATn places is all greater than setting, if in self coupling section n' the current value at negative feeder F two ends absolute value be greater than setting value with value, and in self coupling section n' the current value at contact net T two ends absolute value be less than setting value with value, measurement and control center then to judge in this self coupling section n' that contact net T breaks or out of service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210454398.7A CN103149489B (en) | 2012-09-28 | 2012-11-13 | A kind of electric railway AT Traction networks broken string method of discrimination |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210372419 | 2012-09-28 | ||
| CN201210372419.0 | 2012-09-28 | ||
| CN2012103724190 | 2012-09-28 | ||
| CN201210454398.7A CN103149489B (en) | 2012-09-28 | 2012-11-13 | A kind of electric railway AT Traction networks broken string method of discrimination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103149489A CN103149489A (en) | 2013-06-12 |
| CN103149489B true CN103149489B (en) | 2015-09-30 |
Family
ID=48547683
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210453581.5A Active CN103151763B (en) | 2012-09-28 | 2012-11-13 | A kind of electric railway AT Traction networks fault distinguishing and guard method |
| CN201210453729.5A Active CN103149498B (en) | 2012-09-28 | 2012-11-13 | The charged train operation state of electric railway AT Traction networks and position identifying method |
| CN201210454398.7A Active CN103149489B (en) | 2012-09-28 | 2012-11-13 | A kind of electric railway AT Traction networks broken string method of discrimination |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210453581.5A Active CN103151763B (en) | 2012-09-28 | 2012-11-13 | A kind of electric railway AT Traction networks fault distinguishing and guard method |
| CN201210453729.5A Active CN103149498B (en) | 2012-09-28 | 2012-11-13 | The charged train operation state of electric railway AT Traction networks and position identifying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN103151763B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754240B (en) * | 2014-01-17 | 2016-08-17 | 北京交通大学 | A kind of method for detecting position and position sensor |
| CN104597374B (en) * | 2014-12-26 | 2017-06-27 | 中铁第四勘察设计院集团有限公司 | A kind of failure judgment method for the T-shaped power supply of traction network |
| CN105425113B (en) * | 2015-12-22 | 2019-12-03 | 中国神华能源股份有限公司 | Contact network fault positioning method and system |
| CN105652152B (en) * | 2015-12-31 | 2019-02-22 | 缪弼东 | A kind of Fault Locating Method and system of multiple line direct supply system contact net |
| CN107433883B (en) * | 2016-05-25 | 2020-04-07 | 四川艾德瑞电气有限公司 | Railway traction power supply arm integrated monitoring system |
| CN109142964B (en) * | 2017-06-16 | 2021-02-05 | 国电南瑞科技股份有限公司 | Fixed value automatic setting method of high-speed railway fault distance measuring device |
| CN108490292B (en) * | 2018-03-21 | 2020-08-18 | 中铁第四勘察设计院集团有限公司 | Train running section online monitoring method and system |
| CN108872786B (en) * | 2018-06-15 | 2019-08-02 | 西南交通大学 | A kind of electric railway AT Traction networks AT segment fault localization method |
| CN109347070B (en) * | 2018-09-30 | 2020-10-23 | 成都交大许继电气有限责任公司 | State measurement and control protection system suitable for high-speed railway traction network |
| CN109950862B (en) * | 2018-11-22 | 2021-01-29 | 深圳供电局有限公司 | Self-adaptive current fixed value setting method |
| CN110208653A (en) * | 2019-06-20 | 2019-09-06 | 西南交通大学 | A kind of electric railway perforation tractive power supply system and its fault section recognition methods |
| CN110244182B (en) * | 2019-06-28 | 2021-05-18 | 国电南瑞南京控制系统有限公司 | Fault positioning method and system suitable for electrified railway multi-branch line |
| CN111391894B (en) * | 2020-02-27 | 2021-05-11 | 北京交通大学 | Subway train position detection system |
| CN111391893B (en) * | 2020-02-27 | 2021-05-11 | 北京交通大学 | Subway train position detection system |
| CN111579925B (en) * | 2020-05-21 | 2021-10-08 | 西南交通大学 | Positive rail ground fault positioning method of fourth rail backflow traction power supply system |
| CN111707906B (en) * | 2020-07-14 | 2021-08-03 | 广州地铁集团有限公司 | Method for realizing fault location of subway direct-current traction power supply system |
| CN112350326A (en) * | 2020-10-23 | 2021-02-09 | 株洲中车时代电气股份有限公司 | Rail transit traction power supply system, control method and system thereof, and related components |
| 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 |
| CN113071538B (en) * | 2021-04-28 | 2021-12-10 | 西南交通大学 | Method and system for identifying train running direction of single-line AT traction network |
| CN113479117B (en) * | 2021-09-08 | 2021-11-23 | 西南交通大学 | System and method for identifying train running state of distributed power generation traction network |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3942137B2 (en) * | 2000-07-18 | 2007-07-11 | 中部電力株式会社 | Transmission line protection device |
| JP3844757B2 (en) * | 2003-11-04 | 2006-11-15 | 株式会社近計システム | Feeder fault location system |
| JP4693564B2 (en) * | 2005-09-16 | 2011-06-01 | 株式会社東芝 | Fault location device for AC AT feeder circuit |
| JP4745000B2 (en) * | 2005-09-16 | 2011-08-10 | 株式会社東芝 | Fault detection device for fault location device for AC AT feeder circuit |
| CN201327523Y (en) * | 2008-11-07 | 2009-10-14 | 成都交大许继电气有限责任公司 | Fault location device for all-parallel AT power supply mode in high-speed electrified railway |
| CN101404409B (en) * | 2008-11-17 | 2011-08-10 | 国电南瑞科技股份有限公司 | Cut-off ground fault recognition method for electrified railroad AT power supply contact system |
| JP5319503B2 (en) * | 2009-11-30 | 2013-10-16 | 独立行政法人鉄道建設・運輸施設整備支援機構 | AC AT feeder circuit protection device and method |
| CN201819966U (en) * | 2010-08-09 | 2011-05-04 | 广州锐翔电力科技有限公司 | Railway contact network line-breaking prevention proximity warning indicator |
| CN102508113B (en) * | 2011-10-21 | 2013-11-13 | 南京南瑞继保电气有限公司 | Data collection synchronous method of electrical railway distance measurement device |
-
2012
- 2012-11-13 CN CN201210453581.5A patent/CN103151763B/en active Active
- 2012-11-13 CN CN201210453729.5A patent/CN103149498B/en active Active
- 2012-11-13 CN CN201210454398.7A patent/CN103149489B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103149498B (en) | 2015-08-05 |
| CN103151763A (en) | 2013-06-12 |
| CN103149489A (en) | 2013-06-12 |
| CN103151763B (en) | 2015-08-05 |
| CN103149498A (en) | 2013-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103149489B (en) | A kind of electric railway AT Traction networks broken string method of discrimination | |
| CN102963271A (en) | Section power supply and status measurement and control method of parallel-connected traction networks at tail end of double track railway | |
| CN104325896B (en) | A kind of electric railway traction net sectional power supply distributed protection system | |
| CN202987205U (en) | AT traction power network and electrified train operation state identification system for electrified railway | |
| CN104316830A (en) | Fault location method in case of over-zone power supply by adopting railway AT power supply mode | |
| CN201975860U (en) | Power supply monitoring system used in coal mine | |
| CN203039357U (en) | Section power supply and state measurement and control apparatus for parallel traction net at end of double-line railway | |
| CN202944220U (en) | Segmental power supply and protection system of autotransformer (AT) traction power network of electrified railway | |
| CN106129991A (en) | A kind of high-speed railway Special single-core cable grounding technical scheme | |
| CN202256512U (en) | Multifunctional phase check instrument | |
| CN101552434B (en) | Bypass current working method | |
| CN102543410A (en) | Cascade high-potential energy supply device | |
| CN206781541U (en) | A kind of city rail vehicle storehouse electric power supply control system | |
| CN204045953U (en) | A kind of locking device preventing high voltage power distributing cabinet combined floodgate grounding switch with voltage | |
| CN201587990U (en) | Large-sized aluminum electrolysis plant power supply system | |
| CN104065096B (en) | A kind of direct current transportation is utilized to reduce the method for full cut-off risk under one-end substation fault | |
| CN203812739U (en) | Insulating rod for high-voltage switchgear | |
| CN208522455U (en) | Electric railway AT institute sectionaliser disconnecting switch measure and control device | |
| CN204374393U (en) | Detect the warning device that instantaneous ac scurries into straight-flow system | |
| CN103956743B (en) | A kind of 10KV power distribution network optimization method based on phase difference and device | |
| CN203839224U (en) | Insulating pull rod assembly joint | |
| CN202730548U (en) | Turnout soft connector | |
| CN204008726U (en) | Insulators on HVDC Transmission Line live testing device loop bracket | |
| CN103132765A (en) | Steel pipe pole for transmission lines | |
| CN203084055U (en) | Electrified measuring device for iron core current of transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160705 Address after: 610031 Sichuan City, Chengdu Province, No. two North Ring Road, No. 111 Patentee after: Southwest Jiaotong University Patentee after: Li Qunzhan Address before: 610031 Sichuan City, Chengdu Province, No. two North Ring Road, No. 111 Patentee before: Southwest Jiaotong University |