CN106100130B - A kind of guard method of urban track traffic DC power-supply system - Google Patents
A kind of guard method of urban track traffic DC power-supply system Download PDFInfo
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- CN106100130B CN106100130B CN201610632297.2A CN201610632297A CN106100130B CN 106100130 B CN106100130 B CN 106100130B CN 201610632297 A CN201610632297 A CN 201610632297A CN 106100130 B CN106100130 B CN 106100130B
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- 238000000034 method Methods 0.000 title claims description 10
- 241000272814 Anser sp. Species 0.000 claims abstract description 50
- 230000004224 protection Effects 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 230000009194 climbing Effects 0.000 claims description 5
- 238000002955 isolation Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000008033 biological extinction Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 239000013307 optical fiber Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000001268 conjugating effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
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- H02J13/0003—
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of urban track traffic DC power-supply system protection schemes; the equal access communications processing unit of direct current protecting device; difference traction institute between communication processing apparatus cascaded, thus building for entire DC power-supply system direct current protecting device between shunt tripping signal transmit GOOSE network.The shunt tripping signal between protective device is transmitted by GOOSE network; the cable connection between screen can be greatly reduced; guarantee that shunt tripping signal quickly, reliably transmits between protective device, so that dc circuit breaker faster trip, is conducive to the fast arc extinction of dc circuit breaker and the isolation of failure；Chain rupture testing mechanism possessed by GOOSE, can carry out real-time monitoring to the channel GOOSE between protective device can provide corresponding warning message once channel is abnormal at once, to complete the quick positioning of faulty channel.This programme improves the whole reliability of DC power-supply system protection, efficiently reduces operation personnel to the maintenance time and cost of protection system.
Description
Technical field
The present invention relates to the protection of DC power-supply system more particularly to the protections of urban track traffic DC power-supply system.
Background technique
Important component of the DC traction power-supply system as urban track traffic system, by DC Traction Network to electricity
Motor-car provides electric energy.Electric vehicle obtains electric energy by sliding contact Traction networks, and traction load electric current is typical intermittence
Big load, which dictates that the failure rate of traction power supply network is much higher than general transmission line of electricity.Traction power supply network short failure
Not only menace is very big, but also failure will affect the working condition of whole transportation route at list.Compared to AC system, direct current
Electric current does not have natural zero crossing, and more early excision failure, fault current is just smaller, then is more conducive to quickly going out for dc circuit breaker
Arc.Therefore, more stringent requirements are proposed in quick-action and reliability for direct current protecting.
DC traction power-supply system switchgear can be divided into according to purposes at present: direct current incoming line cabinet, DC feeder cabinet, cathode
Four kinds of fundamental types of cabinet and rail current potential protection cabinets, installation site are as shown in Figure 1.Wherein, direct current incoming line cabinet, DC feeder cabinet,
Cathode cabinet is respectively arranged with microcomputer protecting device.
In existing direct current protecting scheme, when contact net breaks down, the DC feeder protection device of nearly fault point is rapid
Movement, and by cable to side-lining institute DC feeder protection device sending shunt tripping order, realize the function of two-sided anti-interference.
When the anode of switchgear breaks down with cabinet body, the frame leakage protection of protective device is acted in cathode cabinet, by cable to institute
Interior direct current incoming line cabinet, DC feeder cabinet and to side-lining DC feeder cabinet protective device send shunt tripping signal.
In actual operation, cable secondary circuit channel status can not real-time monitoring, the exception of cable passage can not by and
Shi Dingwei will cause the risk that shunt tripping signal can not transmit, and above-mentioned risk can only be avoided by regularly inspection；Traction is stood
Between transmit shunt tripping signal secondary cable it is longer, the interference such as capacitive coupling may cause secondary device operation exception, secondary cable
The important hidden danger that traction is safely operated is effectively formed.Although can be evaded by the way that longer acknowledging time of opening is arranged
State risk, but the longer shunt tripping action delay for DC Line Fault, be unfavorable for dc circuit breaker fast arc extinction and
The excision and isolation of failure.
Summary of the invention
The purpose of the present invention is to provide a kind of guard method of urban track traffic DC power-supply system, passes through GOOSE
Network transmits the shunt tripping signal between direct current protecting device.The stronger anti-interference ability of GOOSE optical-fibre channel and GOOSE are fast
Fast retransmission mechanism ensure that shunt tripping signal transmits between protective device rapidity and reliability, to be conducive to direct current interruption
The fast arc extinction of device and the excision of fault point and isolation；The chain rupture testing mechanism of GOOSE, realizes between protective device
The real-time monitoring of GOOSE transmission channel not only improves the reliability of the protection scheme of DC power-supply system, but also reduces screen
Between wiring and operation and maintenance time and cost.In order to achieve the above objectives, solution of the invention is:
A kind of guard method of urban track traffic DC power-supply system, includes the following steps:
(1) in each traction institute setting one be used for the communication processing apparatus of GOOSE information exchange, interior direct current protecting
Device accesses this communication processing apparatus；
(2) by the different tractions in step (1) in communication processing apparatus cascade up；
(3) after needing the protection act of shunt tripping, GOOSE net that direct current protecting device can be set up by step (1) (2)
Network by shunt tripping signal be transmitted in or it is adjacent institute protective device, thus realize failure it is quick cut off and be isolated.
In above-mentioned steps (1) (2), it is described will traction in direct current protecting device pass through intelligent acess institute in setting
Communication processing apparatus, adjacent traction in communication processing apparatus cascaded up by optical fiber, entire direct current may be implemented and supply
The information sharing of direct current protecting device in electric system, can not only complete it is adjacent traction direct current protecting device between shunt tripping
The transmitting of signal can also realize the transmitting across traction institute's shunt tripping signal.
In above-mentioned steps (3), the protection for needing shunt tripping includes climbing protection, frame leakage protection.
Further, after climbing protection act, direct current protecting device passes through GOOSE network to opposite side DC feeder cabinet
Protection issues shunt tripping order, realizes the defencive function of two-sided anti-interference.
Further, when some traction institute it is out of service after, adjacent two side-lining institute protective device detect GOOSE break
After chain, establish across institute GOOSE service channel be used for transmit across shunt tripping signal, realization across two-sided anti-interference function.
Similarly, in above-mentioned steps (3), when frame leakage protection movement after, direct current protecting device by GOOSE network to
In this institute DC feeder cabinet protection, direct current incoming line cabinet protection and it is adjacent institute DC feeder cabinet protection issue shunt tripping order, in fact
The quick excision and isolation of existing failure.
After adopting the above scheme, the beneficial effects of the present invention are: this programme building in station by communication processing apparatus
GOOSE network, will traction in all direct current protecting devices this GOOSE network is accessed by optical fiber, by optical fiber by phase
The communication processing apparatus of adjacent institute is cascaded, so that entirely the protective device of DC power-supply system accesses unified GOOSE
Among network.In this way, this protection scheme can be applicable in a variety of different operating conditions, realize adjacent institute in addition across protective device
The transmitting of shunt tripping signal.Shunt tripping signal between direct current protecting device is transmitted by GOOSE network, not only greatly reduces screen
Between wiring, and the quick repeats mechanism of the strong jamming ability of optical fiber and GOOSE, ensure that shunt tripping signal quickly, it is reliable
Transmitting.Chain rupture testing mechanism possessed by GOOSE once channel interrupt occurs, can found the channel GOOSE real-time monitoring
It provides corresponding warning message quarter, not only improves the whole reliability of DC protection system, but also reduce operation personnel
To the maintenance time and cost of protection system.
Detailed description of the invention
Fig. 1 is urban track traffic DC power-supply system schematic diagram；
In figure, a- rectifier transformer, b- rectifier, c- cathode cabinet disconnecting switch, d- direct current inlet wire cabinet breaker, e- direct current
Feeder line cabinet breaker, f- rail voltage limiting device；
Fig. 2 is the GOOSE networking schematic diagram of protection scheme of the present invention；
Specific embodiment
Below with reference to attached drawing 2, technical solution of the present invention is described in detail.
The present invention provides a kind of guard method of urban track traffic DC power-supply system, includes the following steps:
(1) in each traction institute setting one be used for the communication processing apparatus of GOOSE information exchange, interior direct current protecting
Device accesses this communication processing apparatus；
(2) by the different tractions in step (1) in communication processing apparatus cascade up；
(3) direct current protecting device can be by GOOSE network that step (1) (2) are set up by shunt tripping signal after protection act
Be transmitted in or it is adjacent institute protective device, thus realize failure it is quick cut off and be isolated.
The quick repeats mechanism of GOOSE of the present invention described in detail below, when the switching value letter that GOOSE is transmitted
After breath conjugates, device can issue first frame GOOSE displacement message at once, and then in a short period of time, device can be reissued
Second frame, third frame message ... can make in this way even if certain frame message loss, and corresponding guarantor can be also transmitted to by conjugating information
Protection unit ensure that the reliability of GOOSE transmission；It is serviced since GOOSE is transmitted using rapid message, so that GOOSE is reported
The delays time to control of text transmission ensure that the rapidity of message transmissions within 4ms；The stronger anti-interference ability of optical fiber, can
Effectively to prevent the interference of external environment, the quick confirmation of GOOSE signal validity is realized.It is straight by GOOSE network transmitting
The shunt tripping signal between protective device is flowed, allows dc circuit breaker quickly by shunt tripping, preferably completion dc circuit breaker
Fast arc extinction and fault point isolation.
GOOSE chain rupture testing mechanism of the present invention contains " message time-to-live " parameter in GOOSE message.Such as
Fruit receiving end does not receive message within " message time-to-live ", then receiving end judges message loss；In " message time-to-live "
2 times of times, then be judged as communication disruption.Real-time self-test can be carried out to the channel GOOSE by GOOSE chain rupture testing mechanism,
The quick positioning for realizing abnormal passage, not only increases the reliability of DC protection system, and reduce screen between wiring with
And time and the cost of operation and maintenance.
By taking short trouble occurs for contact net as an example, after failure occurs, direct current protecting is filled in the DC feeder cabinet of nearly fault point
The climbing protection act set, and by GOOSE network to it is adjacent traction institute DC feeder protection device transmission shunt tripping signal,
It realizes two-sided anti-interference protection, completes the quick excision and isolation of failure.
By taking the anode of switchgear breaks down with cabinet body as an example, after failure occurs, the frame of direct current protecting device in cathode cabinet
The movement of frame leak protection, by GOOSE network in direct current incoming line cabinet, DC feeder cabinet and adjacent DC feeder cabinet
Protective device sends shunt tripping signal, realizes that failure quickly cuts off and is isolated.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, this guarantor
The transmission channels of GOOSE signal can be constructed by the direct-connected of direct current protecting apparatus GOOSE port in shield scheme；Protective device
Cascade channel between the connection or communication processing apparatus of communication processing apparatus can be optical fiber or other media；It is logical
Letter processing unit refers to that all can be used for the device of GOOSE information exchange, such as GOOSE interchanger；The number of communication processing apparatus
Amount can be configured according to scene；Not only shunt tripping signal, which can be transmitted, with GOOSE network between protective device to pass
Pass other on-off models.It is all according to the technical idea provided by the invention, any changes made on the basis of the technical scheme,
It falls within the scope of the present invention.
Claims (4)
1. a kind of guard method of urban track traffic DC power-supply system, it is characterised in that include the following steps:
(1) in each traction institute setting one be used for the communication processing apparatus of GOOSE information exchange, interior direct current protecting device
Access this communication processing apparatus；
(2) by the different tractions in step (1) in communication processing apparatus cascade up；
(3) after needing the protection act of shunt tripping, direct current protecting device can be incited somebody to action by the GOOSE network that step (1) (2) are set up
Shunt tripping signal be transmitted in or it is adjacent institute protective device, thus realize failure it is quick cut off and be isolated；
When some traction institute it is out of service after, adjacent two side-lining institute protective device detect GOOSE chain rupture after, foundation across institute
GOOSE service channel be used for transmit across shunt tripping signal, realization across two-sided anti-interference function.
2. a kind of guard method of urban track traffic DC power-supply system as described in claim 1, it is characterised in that: described
The protection for needing shunt tripping in step (3) includes climbing protection, frame leakage protection.
3. a kind of guard method of urban track traffic DC power-supply system as claimed in claim 1 or 2, it is characterised in that:
In the step (3), after climbing protection act, direct current protecting device is protected by GOOSE network to opposite side DC feeder cabinet
Shunt tripping of taking care of hair out order, realizes the defencive function of two-sided anti-interference.
4. a kind of guard method of urban track traffic DC power-supply system as claimed in claim 1 or 2, it is characterised in that:
In the step (3), after frame leakage protection movement, direct current protecting device passes through GOOSE network DC feeder into this institute
The DC feeder cabinet protection of cabinet protection, the protection of direct current incoming line cabinet and adjacent institute issues shunt tripping order, realizes that the quick of failure cuts
It removes and is isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632297.2A CN106100130B (en) | 2016-08-04 | 2016-08-04 | A kind of guard method of urban track traffic DC power-supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632297.2A CN106100130B (en) | 2016-08-04 | 2016-08-04 | A kind of guard method of urban track traffic DC power-supply system |
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| CN106100130A CN106100130A (en) | 2016-11-09 |
| CN106100130B true CN106100130B (en) | 2019-03-08 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147090B (en) * | 2017-06-07 | 2021-06-01 | 广州地铁集团有限公司 | Bilateral united-hop device and bilateral united-hop protection system based on optical fiber communication |
| CN108666883A (en) * | 2018-05-14 | 2018-10-16 | 苏州天鸿电子有限公司 | A kind of power supply switch cabinet |
| CN108957238B (en) * | 2018-08-01 | 2020-11-03 | 广州白云电器设备股份有限公司 | Device and method for positioning faults of urban rail transit contact network |
| CN110492466B (en) * | 2019-08-06 | 2021-07-27 | 南京南瑞继保工程技术有限公司 | Urban rail transit direct-current traction power supply isolating switch interlocking system and method |
| CN111725791A (en) * | 2020-06-18 | 2020-09-29 | 广州市扬新技术研究有限责任公司 | Method for realizing digital hop selection protection by differential optical fiber transmission GOOSE signal |
| CN113162234B (en) * | 2021-04-09 | 2022-06-07 | 中铁第四勘察设计院集团有限公司 | Direct current combined-hop system based on GOOSE communication and monitoring method |
| CN113253058B (en) * | 2021-06-23 | 2022-08-16 | 中铁第四勘察设计院集团有限公司 | Method and system for ranging fault of contact network of direct-current traction power supply system |
| CN114094551B (en) * | 2021-11-23 | 2024-02-27 | 天津凯发电气股份有限公司 | Protection system smooth access method based on intelligent multiport controller |
| CN117074867A (en) * | 2023-10-12 | 2023-11-17 | 广州市扬新技术研究有限责任公司 | Urban rail transit power supply system fault positioning method based on inter-station GOOSE information |
Citations (1)
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| CN103560585A (en) * | 2013-11-07 | 2014-02-05 | 南京国电南自轨道交通工程有限公司 | Digitized line protection measurement and control system suitable for metro industry |
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2016
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560585A (en) * | 2013-11-07 | 2014-02-05 | 南京国电南自轨道交通工程有限公司 | Digitized line protection measurement and control system suitable for metro industry |
Non-Patent Citations (1)
| Title |
|---|
| "基于GOOSE通信的数字化地铁保护的研制与应用";魏巍等;《2013第十四届全国保护和控制学术研讨会论文集》;20131031;第1-7页 |
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