CN102121960B - Intelligent fault judging device for self-closed through line of railway distribution network - Google Patents
Intelligent fault judging device for self-closed through line of railway distribution network Download PDFInfo
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- CN102121960B CN102121960B CN2011100398528A CN201110039852A CN102121960B CN 102121960 B CN102121960 B CN 102121960B CN 2011100398528 A CN2011100398528 A CN 2011100398528A CN 201110039852 A CN201110039852 A CN 201110039852A CN 102121960 B CN102121960 B CN 102121960B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000001052 transient effect Effects 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
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- Y02B60/50—
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- Locating Faults (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an intelligent fault judging device for a self-closed through line of a railway distribution network. Acquired parameters after passing through an over-current protection module are transmitted to an over-current fault judging module and a quick-break fault judging module through a current sensor and a voltage sensor; the over-current fault judging module and the quick-break fault judging module respectively transmit the judgment results to a microprocessor; the microprocessor judges fault types and fault phases; a first output port transmits the processed fault data to a fault display control module and respectively gives out two different alarm prompts according to a transient fault or a permanent fault; a second output port transmits a power signal to a power failure detection module, and sends alarm information, stops the microprocessor to work and prevents error operation when the voltage of a monitoring power supply is smaller than a normal working voltage; a third output port transmits a working state signal to a diagnostic module and detects the working states of the fault judging modules; and a fourth fault judging module is connected with a radio-frequency transmission module. Through the device, an over-current fault and a quick-break fault of the line are judged in real time without manually patrolling the line blindly or switching a remote switch on.
Description
Technical field
The present invention relates to a kind of Intelligent fault judging device for self-closed through line of railway distribution network.
Background technology
In recent years, along with the construction of the large-scale speed-raising of railway and high-speed railway, more and more higher to the mains supply reliability requirement.The China railways power distribution network generally adopt self-closing and connect circuit each other standby mode be the railway signal power supply power supply, electric pressure is take 10kV as main.Be to guarantee safety of railway traffic, very high to the requirement of the reliability of self-closing through track and the fast quick-recovery of fault, as producing power failure, will cause automatic block signal chaotic, affect the normal transport of railway.
Existing railway power distribution network adopts the small current neutral grounding system of neutral point indirect earthing more, and it is the difficult problem of puzzlement railway power department line attendant that low current neutral grounding system fault is searched always, does not have at present preferably checkout equipment.When system breaks down, because fault current is little, be difficult to the failure judgement interval, cause troubleshooting time longer, badly influence the power supply reliability of railway power distribution network.
At present lookup method all is to determine fault section (interval) by one by one interval examination drawing telemechanical switch or disconnector, and then makes an inspection tour on foot and find out the trouble spot.The drawback of the method, the one, the drawing switch looks for fault section to bear the character of much blindness.Non-electricity telemechanical section leans on people's drawing, time-consuming, effort; Although the telemechanical section can pass through telemechanical drawing switch, but still by trying to send piecemeal judgement, need certain hour, more disadvantageously, examination is sent and is made systematic electricity equipment repeatedly be subjected to the fault heavy current impact piecemeal, easy damaged equipment can reduce pressure regulator serviceable life such as heavy current impact, causes pressure regulator to burn out when serious; The 2nd, the searching of the unknown cause tripping operation that soft fault or instantaneity are caused, have no way of especially having looked into, at present can only be in the scope of a supply arm (40-70KM) by manpower the searching of formula of looking for a needle in a haystack, and often be difficult to find that trouble spot, hidden danger are difficult to get rid of; The 3rd, because the line switching magnitude setting is restricted by the factors such as construction, operating maintenance cost, magnitude setting is limited.This has just caused in the time need stepping on bar and check disguised fault, and the time of searching that needs to have a power failure is long, and labour intensity is large, the problems such as inefficiency.Under railway uninterrupted power supply character, in the urgent need to exploring science, the efficient detection method of fixing a point.
Summary of the invention
The object of the invention provides a kind of Intelligent fault judging device for self-closed through line of railway distribution network, realizes the fault fast positioning function, thereby guarantees the accuracy of fault-signal transmission.
For achieving the above object; the invention provides a kind of Intelligent fault judging device for self-closed through line of railway distribution network; it is characterized in that: comprise fault judging unit and radio frequency transmission unit; the fault judging unit comprises current sensor; voltage sensor; overcurrent protection module; overvoltage protective module; the over current fault judge module; quick-break fault judge module; microprocessor; the detection of power loss module; diagnostic module; energy supply control module; the fault display control module; current sensor is transferred to over current fault judge module and quick-break fault judge module with the current parameters that gathers behind the overcurrent protection module; voltage sensor also is transferred to over current fault judge module and quick-break fault judge module with the voltage parameter that gathers through the overvoltage protection module; over current fault judge module and quick-break fault judge module are transferred to microprocessor with judged result respectively; microprocessor carries out fault type and fault phase is judged processing; first delivery outlet is that the fault data after processing is transferred to the fault display control module; and provide respectively two kinds of different alarms according to transient fault or permanent fault; second delivery outlet is that power supply signal is transferred to the detection of power loss module; send warning message when monitoring power supply less than normal working voltage; and microprocessor is quit work; prevent misoperation; the 3rd delivery outlet is that working state signal is transferred to diagnostic module; detect Intelligent fault judging device self duty, the 4th outlet connects the radio frequency transmission module.
This device is by carrying out digitized measurement and analysis to fault current, utilize various digital filtering techniques that the signal that gathers is processed real-time judge circuit over current fault and quick-break fault, changed the localization of fault mode, fault need not artificial blindly line walking or examination drawing telemechanical switch when occuring, only need can determine abort situation by Surveillance center control interface.For the managerial personnel that use mobile phone, also can mobile phone as terminal, receive in real time failure message.
Description of drawings
Accompanying drawing is structured flowchart of the present invention.
Embodiment
With reference to accompanying drawing; the present invention mainly comprises fault judging unit and radio frequency transmission unit; the fault judging unit comprises current sensor 101; voltage sensor 102; overcurrent protection module 103; overvoltage protective module 104; over current fault judge module 105; quick-break fault judge module 106; microprocessor 109; detection of power loss module 110; diagnostic module 111; fault display control module 108; current sensor is transferred to over current fault judge module and quick-break fault judge module with the current parameters that gathers behind the overcurrent protection module; voltage sensor also is transferred to over current fault judge module and quick-break fault judge module with the voltage parameter that gathers through the overvoltage protection module; over current fault judge module and quick-break fault judge module are transferred to microprocessor with judged result respectively; microprocessor carries out fault type and fault phase is judged processing; first delivery outlet is that the fault data after processing is transferred to the fault display control module; and provide respectively two kinds of different alarms according to transient fault or permanent fault; second delivery outlet is that power supply signal is transferred to the detection of power loss module; send warning message when monitoring power supply less than normal working voltage; and microprocessor is quit work; prevent misoperation; the 3rd delivery outlet is that working state signal is transferred to diagnostic module; detect Intelligent fault judging device self duty, the 4th outlet connects radio frequency transmission module 112.
Claims (1)
1. Intelligent fault judging device for self-closed through line of railway distribution network; it is characterized in that: comprise fault judging unit and radio frequency transmission unit; the fault judging unit comprises current sensor; voltage sensor; overcurrent protection module; overvoltage protective module; the over current fault judge module; quick-break fault judge module; microprocessor; the detection of power loss module; diagnostic module; energy supply control module; the fault display control module; current sensor is transferred to over current fault judge module and quick-break fault judge module with the current parameters that gathers behind the overcurrent protection module; voltage sensor also is transferred to over current fault judge module and quick-break fault judge module with the voltage parameter that gathers through the overvoltage protection module; over current fault judge module and quick-break fault judge module are transferred to microprocessor with judged result respectively; microprocessor carries out fault type and fault phase is judged processing; first delivery outlet of microprocessor is that the fault data after processing is transferred to the fault display control module; and provide respectively two kinds of different alarms according to transient fault or permanent fault; second delivery outlet of microprocessor is that power supply signal is transferred to the detection of power loss module; send warning message when monitoring power supply less than normal working voltage; and microprocessor is quit work; prevent misoperation; the 3rd delivery outlet of microprocessor is that working state signal is transferred to diagnostic module; detect Intelligent fault judging device self duty, the 4th outlet of microprocessor connects the radio frequency transmission unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100398528A CN102121960B (en) | 2011-02-17 | 2011-02-17 | Intelligent fault judging device for self-closed through line of railway distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100398528A CN102121960B (en) | 2011-02-17 | 2011-02-17 | Intelligent fault judging device for self-closed through line of railway distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102121960A CN102121960A (en) | 2011-07-13 |
| CN102121960B true CN102121960B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100398528A Expired - Fee Related CN102121960B (en) | 2011-02-17 | 2011-02-17 | Intelligent fault judging device for self-closed through line of railway distribution network |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508076B (en) * | 2011-11-09 | 2013-09-25 | 东北大学 | Fault diagnosis device and method based on multi-agent system and wavelet analysis |
| CN110888015A (en) * | 2019-10-16 | 2020-03-17 | 国电南瑞科技股份有限公司 | Single-phase earth fault positioning method for power distribution automation system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6573726B1 (en) * | 2000-05-02 | 2003-06-03 | Schweitzer Engineering Laboratories, Inc. | Sensitive ground fault detection system for use in compensated electric power distribution networks |
| CN101382577B (en) * | 2008-10-24 | 2010-12-01 | 华北电力大学 | Single-phase earth fault positioning device for electrical power distribution network |
| CN201382986Y (en) * | 2009-04-23 | 2010-01-13 | 上海市南供电设计有限公司 | Ground fault diagnosis device for medium-voltage distribution network |
| CN201697993U (en) * | 2010-04-28 | 2011-01-05 | 华北电力大学 | Distribution network single-phase grounded fault live positioning device |
| CN201726119U (en) * | 2010-05-18 | 2011-01-26 | 武汉大学 | Intelligent fault locating and protection system for distribution grid |
| CN202025061U (en) * | 2011-02-17 | 2011-11-02 | 长春吉致科技发展有限公司 | Intelligent fault judgment device for automatic blocking/power continuous lines of railway distribution network |
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| CN102121960A (en) | 2011-07-13 |
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| ASS | Succession or assignment of patent right |
Owner name: CHANGCHUN SHENGDE TECHNOLOGY CO., LTD. DANDONG POW Free format text: FORMER OWNER: CHANGCHUN SHENGDE TECHNOLOGY CO., LTD. DANDONG POWER SUPPLY COMPANY OF LIAONING ELECTRIC POWER CO., LTD. Effective date: 20121113 |
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Effective date of registration: 20121113 Address after: 1013, room 130012, building 4000, Silicon Valley Avenue, Changchun, Jilin Applicant after: Changchun Jizhi Technology Development Co., Ltd. Applicant after: Changchun Shengde Technology Co., Ltd. Applicant after: Dandong Power Supply Company of Liaoning Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: 1013, room 130012, building 4000, Silicon Valley Avenue, Changchun, Jilin Applicant before: Changchun Jizhi Technology Development Co., Ltd. Applicant before: Changchun Shengde Technology Co., Ltd. Applicant before: Dandong Power Supply Company of Liaoning Electric Power Co., Ltd. |
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Owner name: CHANGCHUN ENGINEERING COLLEGE Free format text: FORMER OWNER: CHANGCHUN JIZHI TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20140213 Owner name: CHANGCHUN JIZHI TECHNOLOGY DEVELOPMENT CO., LTD. C Free format text: FORMER OWNER: CHANGCHUN SHENGDE TECHNOLOGY CO., LTD. DANDONG POWER SUPPLY COMPANY OF LIAONING ELECTRIC POWER CO., LTD. STATE GRID CORPORATION OF CHINA Effective date: 20140213 |
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Inventor after: Zhang Guangxin Inventor after: Li Qingchun Inventor after: Wang Minzhen Inventor after: Zhou Yutian Inventor after: Yu Xin Inventor after: Yu Xiaochen Inventor before: Wang Minzhen |
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Free format text: CORRECT: INVENTOR; FROM: CHAI CHUNSHAN TO: CHEN LIDING MO BAORU CHAI CHUNSHAN WANG ZITING LU JUAN WEI WEI |
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Effective date of registration: 20140213 Address after: 130012 Jilin province Changchun wide flat road No. 395 Patentee after: Changchun Engineering College Patentee after: Changchun Jizhi Technology Development Co., Ltd. Patentee after: Changchun Shengde Technology Co., Ltd. Patentee after: Dandong Power Supply Company of Liaoning Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 1013, room 130012, building 4000, Silicon Valley Avenue, Changchun, Jilin Patentee before: Changchun Jizhi Technology Development Co., Ltd. Patentee before: Changchun Shengde Technology Co., Ltd. Patentee before: Dandong Power Supply Company of Liaoning Electric Power Co., Ltd. Patentee before: State Grid Corporation of China |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |