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 PDF

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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
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value
coupling section
self coupling
contact net
negative feeder
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CN103149489A (en
Inventor
李群湛
贺建闽
黄彦全
李亚楠
陈维荣
吴积钦
陈民武
李子晗
刘炜
郭锴
南晓强
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Southwest Jiaotong University
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Southwest Jiaotong University
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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

A kind of electric railway AT Traction networks broken string method of discrimination
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.
CN201210454398.7A 2012-09-28 2012-11-13 A kind of electric railway AT Traction networks broken string method of discrimination Active CN103149489B (en)

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Families Citing this family (20)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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