CN107947130A - Electric railway wide area protection TT＆C system - Google Patents
Electric railway wide area protection TT＆C system Download PDFInfo
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- CN107947130A CN107947130A CN201711222784.2A CN201711222784A CN107947130A CN 107947130 A CN107947130 A CN 107947130A CN 201711222784 A CN201711222784 A CN 201711222784A CN 107947130 A CN107947130 A CN 107947130A
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- 230000004224 protection Effects 0.000 title claims abstract description 157
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000005457 optimization Methods 0.000 claims description 8
- 230000004807 localization Effects 0.000 claims description 4
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 102000057593 human F8 Human genes 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 229940047431 recombinate Drugs 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 101100445400 Gibberella fujikuroi (strain CBS 195.34 / IMI 58289 / NRRL A-6831) TF22 gene Proteins 0.000 description 1
- 101000743788 Homo sapiens Zinc finger protein 92 Proteins 0.000 description 1
- 102100039046 Zinc finger protein 92 Human genes 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
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- 238000013517 stratification Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- H02J13/0013—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Electric railway wide area protection TT＆C system,Being exchanged with each other with efficiently sharing based on the IEC61850 communication technologys and device information,Using the supply district of traction substation as unit,The secondary device of each power supply facilities is subjected to function combination,Realize the automatic monitoring to traction power supply facility capital equipment,Measurement,Automatically control,Layered protection,It is layered locking,Self-healing restructuring and automation function,Its equipment used is divided into process layer devices,Bay device,Station level equipment,Bay device is from compass of competency,It is divided into and observing and controlling is protected with regard to ground level,Domain level of standing protects observing and controlling and wide area level protection three levels of observing and controlling,Information is exchanged by process-level network between process layer devices and bay device,Pass through station level network exchange information between bay device and station level equipment,The wide area level protection observing and controlling of bay device passes through wide area protection observing and controlling Channel Exchange information between traction substation.The present invention improves the selectivity and quick-action of protection, so with good application prospect.
Description
Technical field
The invention belongs to electric railway traction power supply technique field, particularly a kind of electric railway wide area protection observing and controlling
System.
Background technology
In recent years, electric railway construction and development in China's achieve huge achievement, hair of the people to electric railway
Exhibition it is also proposed the requirement of higher, as the traction substation automated system of traction power supply core, even more need high standard, tight
It is required that.But traditional complex automatic system does not have a breaker fail protection and bus protection, the back-up protection between device exists
Defect, the quick-action of device has much room for improvement after supply arm failure, due between different device, particularly device between traction substation
Between lack necessary logic blocking, the selectivity of protection act can only be relied on there is an urgent need for strengthening, after protection act manually to be realized and supplies
Electricity restructuring, restore electricity overlong time, has seriously affected power supply quality.
The content of the invention
In order to overcome existing traction substation control system there are the drawbacks of, the present invention provides a kind of to traction substation
All information gatherings, transmission, processing, output procedure are all converted to digital information by past analog information, and establish therewith
Adaptable communication network and system, by IEC61850 technologies, information unification models in digital transformer substation, realizes information
It is shared so that the exchange of information is more easy and convenient between equipment so that stratification protection, over-zone feeding, using supply arm as unit
Layering locking and self-healing restructuring etc. be possibly realized, the selectivity and quick-action of protection are drastically increased, to electrified iron
The electric railway wide area protection TT＆C system that road quality supply is of great significance.
The technical solution adopted by the present invention to solve the technical problems is：
Electric railway wide area protection TT＆C system, it is characterised in that mutual based on the IEC61850 communication technologys and device information
Exchange with efficiently shared, using the supply district of traction substation as unit, the secondary device of each power supply facilities is subjected to function group
Close, realize to traction power supply facility capital equipment it is automatic monitor, measure, automatically control, layered protection, layering locking, self-healing
Restructuring and automation, its equipment used are divided into process layer devices, bay device, station level equipment, bay device from
In compass of competency, it is divided into regard to ground level protection observing and controlling, stand domain level protection observing and controlling and wide area level protection three levels of observing and controlling, ground level is protected
Protecting observing and controlling includes main transformer protection, main transformer observing and controlling, AT changes protection, protection for feed line, fault localization, and domain level protection observing and controlling of standing is based on whole station
The redundancy of information realization protection and optimization, domain level protection observing and controlling of standing are protected except redundancy becomes with regard to ground level main transformer protection, protection for feed line, AT
Shield is outer, also supports breaker fail protection quickly to be protected with busbar, realizes all standing of protection, improve the reliable of protection
Property, wide area level is protected observing and controlling using supply arm as unit, is realized to selectively quickly excision, the self-healing of supply arm uplink and downlink failure
Restructuring, layering locking comprehensive protection control and automation, pass through process layer net between process layer devices and bay device
Network exchanges information, passes through station level network exchange information, the wide area of bay device between bay device and station level equipment
Level protection observing and controlling passes through wide area protection observing and controlling Channel Exchange information between traction substation.
The process layer devices include body assembly, combining unit, intelligent terminal, the merging intelligence list of traction substation
Member, voltage MU, the wherein combining unit of traction substation high voltage side of transformer, intelligent terminal, merge intelligent cell using dual
Change configuration, the process layer device of step down side is preferentially using the single intelligent terminal integrated device of merging.
The measure and control device that the wall is used with regard to ground level protection includes main transformer protection device, main transformer measure and control device, feeder line
Protection supervisory equipment, AT become protection supervisory equipment, fault location device, universal measurement and control and contact line switches monitoring dress
Put, network message recorder analyser, wherein main transformer protection device also uses duplicate system retrofit scheme, the domain level protection observing and controlling and wide of standing
Domain level protection observing and controlling, can be respectively configured station domain protection supervisory equipment, wide area protection measure and control device, and the domain protection that can also stand at one is surveyed
Control and the level protection observing and controlling of station domain and the protection observing and controlling of wide area level are realized in device.
The station level equipment includes integrated monitoring backstage, clock synchronization apparatus, telemechanical communication equipment, ranging supervisor.
Present invention has the advantages that：The present invention based on the IEC61850 communication technologys and device information be exchanged with each other with efficiently
It is shared, using the supply district of traction substation as unit, the secondary device of each power supply facilities is subjected to function combination, is realized to leading
Draw power supply facilities capital equipment it is automatic monitor, measure, automatically controlling, layered protection, layering locking, self-healing restructuring and automatic
Change function.Stand the domain level redundancy protected based on whole station information realization of protection observing and controlling and optimization, except redundancy with regard to ground level main transformer protection,
Protection for feed line, AT become outside the function of protection, also support breaker fail protection quickly to be protected with busbar, realize the complete of protection and cover
Lid, improves the reliability of protection.Wide area level protects observing and controlling, and using supply arm as unit, realize has choosing to supply arm uplink and downlink failure
Quick excision, the self-healing of selecting property recombinate, are layered the comprehensive protection control such as locking and automation function.The present invention improves guarantor
The selectivity and quick-action of shield, so the application prospect that the present invention has had.
Brief description of the drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is wide area protection TT＆C system structure diagram of the present invention；
Fig. 2 is electrified railway power supply arm electrical schematics of the present invention；
Fig. 3 is T lines fault self-recovery restructuring FB(flow block) of the present invention；
Fig. 4 is present invention layering locking schematic diagram.
Embodiment
Shown in Fig. 1, electric railway wide area protection TT＆C system, based on the IEC61850 communication technologys and device information
It is exchanged with each other with efficiently sharing, using the supply district of traction substation as unit, the secondary device of each power supply facilities is subjected to work(
Can combination, realize to traction power supply facility capital equipment it is automatic monitor, measure, automatically control, layered protection, layering locking,
Self-healing restructuring and automation function, its equipment used are divided into process layer devices, bay device, station level equipment, interval
Layer equipment is divided into regard to ground level protection observing and controlling, stand domain level protection observing and controlling and wide area level protection three levels of observing and controlling from compass of competency,
Main transformer protection, main transformer observing and controlling, AT changes protection, protection for feed line, fault localization are included with regard to ground level protection observing and controlling, domain level protection observing and controlling of standing
Redundancy and optimization based on the protection of whole station information realization, domain level protection observing and controlling of standing is except redundancy is with regard to ground level main transformer protection, feeder line guarantor
Shield, AT become outside the function of protection, also support breaker fail protection quickly to be protected with busbar, realize all standing of protection, carry
The high reliability of protection, wide area level protect observing and controlling to be realized selective to supply arm uplink and downlink failure using supply arm as unit
Quick excision, the comprehensive protection control of self-healing restructuring, layering locking and automation function, process layer devices set with wall
Information is exchanged by process-level network between standby, is believed between bay device and station level equipment by station level network exchange
Breath, the wide area level protection observing and controlling of bay device pass through wide area protection observing and controlling Channel Exchange information between traction substation.
Shown in Fig. 1, body assembly of the process layer devices including traction substation, combining unit, intelligent terminal, merging intelligence
Can unit, voltage MU, the wherein combining unit of traction substation high voltage side of transformer, intelligent terminal, merging intelligent cell use
Duplicate system retrofit, the process layer device of step down side is preferentially using the single intelligent terminal integrated device of merging.Wall is just
The measure and control device that ground level protection observing and controlling uses includes main transformer protection device, main transformer measure and control device, protection for feed line measure and control device, AT and becomes
Protection supervisory equipment, fault location device, universal measurement and control and distribution type monitoring device of touch network, network message record and analyze
Instrument, wherein main transformer protection device also use duplicate system retrofit scheme, and stand domain level protection observing and controlling and the protection observing and controlling of wide area level, can distinguish
Configuration station domain protection supervisory equipment, wide area protection measure and control device, can also realize station domain level in a domain protection supervisory equipment of standing
Protect observing and controlling and wide area level protection two functions of observing and controlling.Station level equipment include integrated monitoring backstage, clock synchronization apparatus, far
Dynamic communication equipment, ranging supervisor.
Shown in Fig. 1, wide area protection TT＆C system is using the method for layered configuration, and by protecting, standing with regard to ground level, domain level is protected
Protect three levels composition with wide area level, in system device information share, function synergic, embody system advantage, both ensure to be spaced
The independence and reliability of interior defencive function, and the globality for domain level protection of standing can be utilized, realize also real while protective redundancy
The optimization now protected.Main transformer protection, main transformer observing and controlling, AT changes protection, protection for feed line, fault localization are included with regard to ground level protection observing and controlling
Deng, using protected object self information independent decision-making, realize it is reliable, rapidly cut off failure, and can to protected object into
Row measurement, control, complete the switching logic locking in interval.Stand domain level protection observing and controlling using station in multiple objects electrical quantity,
Switching value and with regard to the ground level protection information such as equipment state, centralized decision-making, realizes redundancy and the optimization of protection, completes and lifts power transformation
The safety automation control function for aspect of standing；It completes the switching logic blocking function between interval, is protected without with regard to ground level, directly
Control instruction is assigned, while is also equipped with the substation function of support wide area level protection control；Domain level protection observing and controlling of standing is believed based on whole station
Breath realizes redundancy and the optimization of protection, increases the reliability of system；It is except redundancy is with regard to ground level main transformer protection, protection for feed line, AT
Become outside the function of protection, also support：
（1）Breaker fail protection.When breaker failure, tripping is located at the breaker of its upper level, then by keeping apart
The breaker of isolation failure is closed, and starts self-healing.
（2）Busbar is quickly protected.Integrated use main transformer low-pressure side and line side electric quantity information, failure judgement region are real
Now to the quick protection of busbar.
Domain level protection observing and controlling stand using new functions such as quick bus protection, breaker fail protections, realizes the complete of protection
Covering, improves the reliability of protection.Meanwhile the function such as power supply restructuring in the switching logic locking and institute of compartment is also equipped with,
Improve the security of control.
Shown in Fig. 2, wide area level protects observing and controlling to be realized selective to supply arm uplink and downlink failure using supply arm as unit
Quick excision, the comprehensive protection control of self-healing restructuring, layering locking etc. and automation function.
（1）The protection observing and controlling of wide area level selectively quickly cuts off function.
Wide area level protects observing and controlling using supply arm as unit, using high-speed data channel between institute, shares in the range of supply arm
The data message such as electrical quantity, switching value between institute, integrated decision-making, realizes and supply arm uplink and downlink failure is selectively quickly cut
Remove.Wherein CB1 ~ 6 are feeder line double-pole cut-out in each, and KF1 ~ 6 are each online net single-pole isolator of institute's outer contacting, and KL is becomes
Electric institute's contact net uplink and downlink parallel connection bipolar isolation switch, KT1 ~ 4 are each external net-fault sectionalizer.Occurred according to failure
Position, uplink and downlink, type are defined as failure removal section the T11/F11/TF11/ T12/F12/TF12/T21/ shown in Fig. 2
F21/TF21/T22/F22/TF22 totally 12 types.Wherein " Txx " represents T line failures, and " Fxx " represents F line failures, " TFxx "
Represent T-F line failures.Wide area level monitoring and protection can fast and accurately distinguish fault section, and realizing has supply arm uplink and downlink failure
The quick excision of selectivity.
（2）Wide area level protects observing and controlling self-healing recombination function.
After failure removal, wide area level protects observing and controlling according to information such as abort situation, can carry out self-healing restructuring to power supply mode,
Isolated fault point or fault element, fast recovery of power supply, reduces power failure section, scope.As shown in Fig. 2, wide area level monitoring and protection
A kind of corresponding self-healing is defined for every kind of fault type and recombinates flow, and each self-healing is recombinated in flow only fault section isolation
Open, remainder restores electricity.Self-healing restructuring logic can adjust configuration according to scene actual needs.When feeder line occurs permanently
After failure and excision, wide area observing and controlling protects the trouble point information according to range unit, starts supply arm self-healing restructuring.To occur
Exemplified by T11 section faults, the flow chart of supply arm self-healing function is as shown in Figure 3.
（3）Wide area level protection observing and controlling layering blocking function.
From hierarchical relationship, locking can be divided into hardwire locking, the logic blocking of cell device, control of standing on the spot
Layer four level of locking and scheduling operation locking.Layering locking realizes the circuit breaker lock function of original five-preventing system, it is not necessary to
Special five-preventing system is reconfigured at, ensures the security of switching manipulation.It is as shown in Figure 4 to be layered locking schematic diagram.
Simple locking between being switched in this interval is mainly realized in hardwire locking with regard to ground level, and modification is difficult.
The logic blocking of wall realizes that it is configured flexibly by software configuration, and operation, safeguard simply, can be very convenient
Realize some very complicated latching logics.
Compared with wall locking, the logic blocking of station level is planned as a whole to utilize complete remote signalling amount, analog quantity, total score
Analysis, judges whether switch is in controllable state.Before remote control command is sent, first judge switch whether in controllable state.If sentence
Break and switch and be blocked, then directly prompt user in station level, do not allow remote control command to issue.The realization of each layer locking is all mutual
Independent, the realization of this layer of latching logic is independent of other levels.The blocking function of wall and station level can pass through soft pressing plate
Carry out throwing to move back, to increase the flexibility of system.
The present invention being exchanged with each other with efficiently sharing, with traction substation based on the IEC61850 communication technologys and device information
Supply district be unit, the secondary device of each power supply facilities is subjected to function combination, realizes and traction power supply facility is mainly set
It is standby it is automatic monitor, measure, automatically controlling, layered protection, layering locking, self-healing restructuring and automation function.Domain level of standing is protected
The redundancy and optimization that shield observing and controlling is protected based on whole station information realization, are protected except redundancy becomes with regard to ground level main transformer protection, protection for feed line, AT
Outside the function of shield, also support breaker fail protection quickly to be protected with busbar, realize all standing of protection, improve protection
Reliability.Wide area level protect observing and controlling using supply arm as unit, realize to supply arm uplink and downlink failure selectively quickly excision,
The comprehensive protection control such as self-healing restructuring, layering locking and automation function.The present invention improves the selectivity and speed of protection
Dynamic property, so the application prospect that the present invention has had.
The present embodiment is preferred embodiments of the present invention, is not intended to limit the invention, all to appoint in spirit of the present invention
What modification, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (4)
1. electric railway wide area protection TT＆C system, it is characterised in that the phase based on the IEC61850 communication technologys and device information
It is interchangeable to be shared with efficient, using the supply district of traction substation as unit, the secondary device of each power supply facilities is subjected to function
Combination, realize to traction power supply facility capital equipment it is automatic monitor, measure, automatically control, layered protection, layering locking, from
More recombinate and automate, its equipment used is divided into process layer devices, bay device, station level equipment, bay device
From compass of competency, it is divided into regard to ground level protection observing and controlling, stand domain level protection observing and controlling and wide area level protection three levels of observing and controlling, with regard to ground level
Observing and controlling is protected to include main transformer protection, main transformer observing and controlling, AT changes protection, protection for feed line, fault localization, domain level protection observing and controlling of standing is based on complete
The redundancy of information realization of standing protection and optimization, domain level protection observing and controlling of standing is except redundancy is with regard to ground level main transformer protection, protection for feed line, AT changes
Protection is outer, also supports breaker fail protection quickly to be protected with busbar, realizes all standing of protection, improve the reliable of protection
Property, wide area level is protected observing and controlling using supply arm as unit, is realized to selectively quickly excision, the self-healing of supply arm uplink and downlink failure
Restructuring, layering locking comprehensive protection control and automation, pass through process layer net between process layer devices and bay device
Network exchanges information, passes through station level network exchange information, the wide area of bay device between bay device and station level equipment
Level protection observing and controlling passes through wide area protection observing and controlling Channel Exchange information between traction substation.
2. electric railway wide area protection TT＆C system according to claim 1, it is characterised in that process layer devices include
Body assembly, combining unit, intelligent terminal, merging intelligent cell, wherein the voltage MU, traction substation transformation of traction substation
The on high-tension side combining unit of device, intelligent terminal, merging intelligent cell use duplicate system retrofit, the process layer dress of step down side
Put preferential using the single intelligent terminal integrated device of merging.
3. electric railway wide area protection TT＆C system according to claim 1, it is characterised in that wall is protected with regard to ground level
The measure and control device that shield uses includes main transformer protection device, main transformer measure and control device, protection for feed line measure and control device, AT and becomes protection observing and controlling dress
Put, fault location device, universal measurement and control and distribution type monitoring device of touch network, network message recorder analyser, wherein main
Become protective device and also use duplicate system retrofit scheme, stand domain level protection observing and controlling and the protection observing and controlling of wide area level, can be respectively configured station domain
Protection supervisory equipment, wide area protection measure and control device, can also realize the level protection observing and controlling of station domain in a domain protection supervisory equipment of standing
Observing and controlling is protected with wide area level.
4. electric railway wide area protection TT＆C system according to claim 1, it is characterised in that station level equipment includes
Integrated monitoring backstage, clock synchronization apparatus, telemechanical communication equipment, ranging supervisor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222784.2A CN107947130A (en) | 2017-11-29 | 2017-11-29 | Electric railway wide area protection TT＆C system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222784.2A CN107947130A (en) | 2017-11-29 | 2017-11-29 | Electric railway wide area protection TT＆C system |
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| Publication Number | Publication Date |
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| CN107947130A true CN107947130A (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711222784.2A Pending CN107947130A (en) | 2017-11-29 | 2017-11-29 | Electric railway wide area protection TT＆C system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421761A (en) * | 2020-11-29 | 2021-02-26 | 西南交通大学 | Relay protection reconstruction self-healing method for hub traction power supply system |
| CN115051311A (en) * | 2022-08-17 | 2022-09-13 | 中国铁路设计集团有限公司 | Test verification method for intelligent traction power supply wide-area protection measurement and control system |
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| CN203166626U (en) * | 2012-12-27 | 2013-08-28 | 天津凯发电气股份有限公司 | Intelligent traction substation |
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| CN207926175U (en) * | 2017-11-29 | 2018-09-28 | 中国铁路总公司 | Electric railway wide area protection TT＆C system |
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| CN203166626U (en) * | 2012-12-27 | 2013-08-28 | 天津凯发电气股份有限公司 | Intelligent traction substation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115051311A (en) * | 2022-08-17 | 2022-09-13 | 中国铁路设计集团有限公司 | Test verification method for intelligent traction power supply wide-area protection measurement and control system |
| CN115051311B (en) * | 2022-08-17 | 2022-12-13 | 中国铁路设计集团有限公司 | Test verification method for intelligent traction power supply wide area protection measurement and control system |
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