CN110239398A - A kind of cophase supply traction substation protection for feed line trip method - Google Patents
A kind of cophase supply traction substation protection for feed line trip method Download PDFInfo
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- CN110239398A CN110239398A CN201910535614.2A CN201910535614A CN110239398A CN 110239398 A CN110239398 A CN 110239398A CN 201910535614 A CN201910535614 A CN 201910535614A CN 110239398 A CN110239398 A CN 110239398A
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- breaker
- neutral section
- contact net
- current
- arm contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of cophase supply traction substation protection for feed line trip methods, belong to electric railway traction power supply technique field.The neutral section of homo-phase traction electric substation outlet setting electrification, when normal operation, left and right arm contact net connection.When left arm perhaps right arm contact net failure, perhaps right arm contact net only makes left arm or right arm contact net have a power failure to protective device disconnection left arm；In the neutral section shunt tripping protective device of neutral section increase, left arm contact net failure, for left arm catenary protection device while issuing trip command to left arm contact net breaker, neutrality section shunt tripping protective device is given in hair shunt tripping order；When neutral section shunt tripping protective device receives shunt tripping order, if current neutrality Duan Shangyou vehicle, and driving direction would be that from right to left, then trip neutral section breaker immediately, makes neutral section power loss；If current neutrality section remembers the shunt tripping order without vehicle within a certain period of time, and whether detect neutral section and have vehicle, within the time, has detected that vehicle trips immediately.
Description
Technical field
The invention belongs to attached wires of AC electrified railway traction power supply technical fields.
Background technique
Structure possessed by monophase system is simple, construction cost is low, with and it is easy to maintain the advantages that, determine electrical
Change railway and generallys use single phase industrial frequence alternating current as railway locomotive power supply.And electric system wishes that all loads all take from power grid
With the fundamental current of three-phase symmetrical, to make full use of equipment, the capacity of route reduces reactive current and harmonic current to system
Harm.To meet the requirement, electric railway uses the scheme of phase sequence rotation, segmentation split-phase power supply, along the railway every 20-
25km is as a power supply section, and each section is successively respectively by the not cophase supply in power grid, and setting 30m is left between each section
Right split phase segment, and split-phase is carried out by neutral section.When the locomotive load run on the section that each phase is powered respectively is identical,
It can make the balance of electric system three-phase load in a large range.
But since the size of the traction load of each section can not be identical at any time, split-phase segmentation scheme is only certain
The influence of three-phase imbalance is alleviated in degree, without fundamentally solving the single-phase electricity consumption of railway load to entire utility network
It influences.Electric railway is forced to modify design scheme due to the problem of influencing power quality, increases investment, situation passively feelings
Condition happens occasionally.
Simultaneously, because the presence of electric neutral section, when locomotive operation is to a power supply segment ends, it is necessary to which process is moved back
The operation of a series of complex such as grade, power-off slides into next section and restores to operate normally again item by item, this had both increased locomotive behaviour
The complexity of work, while the raising of locomotive running speed and the performance of tractive force are seriously constrained again.
There is expert to propose cophase supply technology thus, installs cophase supply device, traction substation additional in traction substation
It exports left and right arms contact net and uses same power voltage supply, cancel and draw exported split-phase.But in cophase supply, work as confession
Electric arm in the event of failure, if left and right arms contact net trips together, when mutually less using cophase supply technology, expands power failure
Range.If only tripping failure arm, there are train on-loads to enter non-Electric region (failure from electric region (non-failure arm contact net)
Trip supply arm contact net) possibility, cause arcing hidden danger, scaling loss even blows contact net.
Summary of the invention
The object of the present invention is to provide a kind of cophase supply traction substation protection for feed line trip methods, it can effectively be solved
Certainly former traction substation exports neutral section electrification, when contact net breaks down, tripping failure arm contact net when failure, simultaneously
The technical issues of neutral section tripping of electrification is controlled.
The present invention solves its technical problem, used technical solution are as follows: a kind of cophase supply traction substation feeder line guarantor
Trip method is protected, the tractive transformer of the traction substation obtains A, B, C three-phase electric energy from public electric wire net, by cophase supply
The a phase electricity exported after device compensation is divided into three tunnels with b phase electricity, a phase electricity, and the first via is through feeder line F12 and breaker DL12And electricity
Current transformer LH12It is connected to left arm contact net T1, the second tunnel is through feeder line F10 and breaker DL10And current transformer LH10Connection
To right arm contact net T2, third road is connected to neutral section Ta through feeder line F1 and breaker DL1 and current transformer LH1；The b phase
It is electrically connected rail and ground；Current transformer LH12, current transformer LH10, current transformer LH1It is separately connected the protection of feeder line F12
The input terminal of device BH12, feeder line F10 protective device BH10 and neutral section Ta shunt tripping protective device LB, and detection left arm connects respectively
The electric current of net-fault T1 and right arm contact net T2 and neutral section Ta；The protective device of the protective device BH12 of feeder line F12, feeder line F10
The output end of the shunt tripping protective device LB of BH10 and neutral section Ta are separately connected breaker DL12, breaker DL10, breaker DL1's
Control terminal；The breaker DL12, breaker DL10, breaker DL1For be each turned off in case of a fault left arm contact net T1,
Right arm contact net T2 and neutral section Ta；Remember that GJ1 is the sectionaliser of left arm contact net T1 and neutral section Ta, GJ2 is right arm contact net
The sectionaliser of T2 and neutral section Ta；When normal operation, breaker DL12, breaker DL10, breaker DL1It is closed, left and right arm connects
Net-fault T1 and T2 connection constitutes cophase supply；
(1) when left arm contact net T1 failure, protective device BH12 cut-off breaker DL12, left arm contact net T1 is caused to stop
Electricity；Similarly, when right arm contact net T2 failure, protective device BH10 cut-off breaker DL10, right arm contact net T2 is caused to have a power failure；
(2) increase shunt tripping protective device LB in neutral section Ta；A, when left arm contact net T1 failure, protective device BH12 is being sent out
Trip command gives breaker DL out12While, the shunt tripping protective device LB of neutral section Ta is given in hair shunt tripping order；Shunt tripping protective device
When LB receives shunt tripping order, if having load on current neutrality section Ta, and This train is bound for XXX from right to left, then to disconnect immediately
Breaker DL1, make neutral section Ta power loss；If current neutrality section Ta is zero load, the shunt tripping order is remembered at the appointed time,
And continue to test whether neutral section has load, once detect load cut-off breaker DL immediately1, exceed schedule time, then
Involution shunt tripping order；B, when right arm contact net T2 failure, protective device BH10 gives breaker DL in sending trip command10It is same
When, shunt tripping protective device LB is given in hair shunt tripping order；When shunt tripping protective device LB receives shunt tripping order, if on current neutrality section Ta
There is load, and This train is bound for XXX for from left to right, then trip breaker DL immediately1, make neutral section Ta power loss；If in current
Property section Ta is zero load, then remembers the shunt tripping order at the appointed time, and continue to test neutral section Ta whether to have load, providing
It in time, has detected that load trips immediately, has exceeded schedule time, then the order of involution shunt tripping；
(3) when neutral section Ta failure, if it is single line electric railway then by breaker DL12, breaker DL1, open circuit
Device DL10It trips simultaneously, makes left arm contact net T1, right arm contact net T2 and neutrality section Ta power loss simultaneously；If multiple line electrification iron
Road is then by breaker DL1Tripping, it is assumed that This train is bound for XXX for from left to right, then tripping circuit breaker DL simultaneously12With breaker DL1
Make left arm contact net and neutrality section Ta power loss simultaneously；If This train is bound for XXX for from right to left, tripping circuit breaker DL simultaneously10
With breaker DL1Make right arm contact net T2 and neutrality section Ta power loss simultaneously；
(4) when This train is bound for XXX according to current transformer LH by neutral section Ta1, current transformer LH12, current transformer
LH10The electric current judgement detected: when train drives towards neutral section Ta and does not enter neutral section Ta from left arm contact net, Current Mutual Inductance
Device LH1Detect electric current very little and close to 0, current transformer LH12With current transformer LH10Detect that size of current is equal,
Current transformer LH10Flow into neutral section Ta, current transformer LH12Flow out neutral section Ta；When vehicle enters neutral section Ta, electric current
Mutual inductor LH1The electric current detected, size are current transformer LH12With current transformer LH10The sum of, current transformer LH12Electricity
Stream direction is become flowing into neutral section Ta, current transformer LH from outflow neutrality section Ta10Current direction it is constant；When train is from right side
When driving towards neutral section Ta and not entering neutral section Ta, current transformer LH1Detect electric current very little and close to 0, Current Mutual Inductance
Device LH12With current transformer LH10The size of current detected is equal, current transformer LH10Flow out neutral section Ta, Current Mutual Inductance
Device LH12Flow into neutral section Ta；When train enters neutral section Ta, current transformer LH1The electric current detected, size are that electric current is mutual
Sensor LH12With current transformer LH10The sum of electric current detected, the electric current LH detected10Current direction is by flowing out neutral section Ta
Become flowing into neutral section Ta, the electric current LH detected12Current direction is constant.
Compared with prior art, the beneficial effects of the present invention are:
One, band electroneutral section is manipulated, its pantograph will non-event when train being avoided to drive into faulty section from non-faulting section
Barrier section contact net and faulty section contact net are shorted and new short circuit accident and train on-load are caused to enter drawing caused by non-Electric region
Arc hidden danger, the phenomenon that not causing arcing and scaling loss, even blow contact net and cause accident.
Two, when cophase supply traction substation left arm contact net failure, tripping left arm contact net；Right arm contact net failure
When, tripping right arm contact net.Scope of power outage is reduced, the reliability of Traction networks power supply is improved.
Three, method of the invention is applicable in single line direct-furnish or AT electric railway, multiple line direct-furnish or AT electric railway.
Detailed description of the invention
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Fig. 2 is the connection schematic diagram of protective device and shunt tripping device of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and detailed description.
Fig. 1 is shown, a kind of specific embodiment of the invention are as follows:
A kind of cophase supply traction substation protection for feed line trip method, the tractive transformer of the traction substation is from public affairs
Common-battery net obtains A, B, C three-phase electric energy, and a phase electricity exported after cophase supply device compensates divides with b phase electricity, a phase electricity
For three tunnels, the first via is through feeder line F12 and breaker DL12And current transformer LH12It is connected to left arm contact net T1, the second road warp
Feeder line F10 and breaker DL10And current transformer LH10It is connected to right arm contact net T2, third road is through feeder line F1 and breaker DL1
And current transformer LH1It is connected to neutral section Ta；The b is electrically connected rail and ground；Current transformer LH12, current transformer
LH10, current transformer LH1It is separately connected protective device BH12, the feeder line F10 protective device BH10 and neutral section Ta of feeder line F12
The input terminal of shunt tripping protective device LB, and the electric current of left arm contact net T1 and right arm contact net T2 and neutral section Ta are detected respectively；
The output end of the shunt tripping protective device LB of the protective device BH12 of feeder line F12, the protective device BH10 of feeder line F10 and neutral section Ta
It is separately connected breaker DL12, breaker DL10, breaker DL1Control terminal；Breaker DL12, breaker DL10, breaker DL1
For being each turned off left arm contact net T1, right arm contact net T2 and neutral section Ta in case of a fault；Note GJ1 is left arm contact net
The sectionaliser of T1 and neutral section Ta, GJ2 are the sectionaliser of right arm contact net T2 and neutral section Ta；When normal operation, breaker
DL12, breaker DL10, breaker DL1It is closed, left and right arm contact net T1 and T2 connection, constitutes cophase supply；Its feature exists
In:
(1) when left arm contact net T1 failure, protective device BH12 cut-off breaker DL12, left arm contact net T1 is caused to stop
Electricity；Similarly, when right arm contact net T2 failure, protective device BH10 cut-off breaker DL10, right arm contact net T2 is caused to have a power failure；
(2) increase shunt tripping protective device LB in neutral section Ta；A, when left arm contact net T1 failure, protective device BH12 is being sent out
Trip command gives breaker DL out12While, the shunt tripping protective device LB of neutral section Ta is given in hair shunt tripping order；Shunt tripping protective device
When LB receives shunt tripping order, if having load on current neutrality section Ta, and This train is bound for XXX from right to left, then to disconnect immediately
Breaker DL1, make neutral section Ta power loss；If current neutrality section Ta is zero load, the shunt tripping order is remembered at the appointed time,
And continue to test whether neutral section has load, once detect load cut-off breaker DL immediately1, exceed schedule time, then
Involution shunt tripping order；B, when right arm contact net T2 failure, protective device BH10 gives breaker DL in sending trip command10It is same
When, shunt tripping protective device LB is given in hair shunt tripping order；When shunt tripping protective device LB receives shunt tripping order, if on current neutrality section Ta
There is load, and This train is bound for XXX for from left to right, then trip breaker DL immediately1, make neutral section Ta power loss；If in current
Property section Ta is zero load, then remembers the shunt tripping order at the appointed time, and continue to test neutral section Ta whether to have load, providing
It in time, has detected that load trips immediately, has exceeded schedule time, then the order of involution shunt tripping；
(3) when neutral section Ta failure, if it is single line electric railway then by breaker DL12, breaker DL1, open circuit
Device DL10It trips simultaneously, makes left arm contact net T1, right arm contact net T2 and neutrality section Ta power loss simultaneously；If multiple line electrification iron
Then breaker DL1 is tripped on road, it is assumed that This train is bound for XXX for from left to right, then tripping circuit breaker DL simultaneously12With breaker DL1
Make left arm contact net and neutrality section Ta power loss simultaneously；If This train is bound for XXX for from right to left, tripping circuit breaker DL simultaneously10
With breaker DL1Make right arm contact net T2 and neutrality section Ta power loss simultaneously；
(4) when This train is bound for XXX according to current transformer LH by neutral section Ta1, current transformer LH12, current transformer
LH10The electric current judgement detected: when train drives towards neutral section Ta and does not enter neutral section Ta from left arm contact net, Current Mutual Inductance
Device LH1Detect electric current very little and close to 0, current transformer LH12With current transformer LH10Detect that size of current is equal,
Current transformer LH10Neutral section Ta is flowed into, current transformer LH12 flows out neutral section Ta；When vehicle enters neutral section Ta, electric current
Mutual inductor LH1The electric current detected, size are current transformer LH12With current transformer LH10The sum of, current transformer LH12Electricity
Stream direction is become flowing into neutral section Ta, current transformer LH from outflow neutrality section Ta10Current direction it is constant；When train is from right side
When driving towards neutral section Ta and not entering neutral section Ta, current transformer LH1Detect electric current very little and close to 0, Current Mutual Inductance
Device LH12With current transformer LH10The size of current detected is equal, current transformer LH10Flow out neutral section Ta, Current Mutual Inductance
Device LH12Flow into neutral section Ta；When train enters neutral section Ta, current transformer LH1The electric current detected, size are that electric current is mutual
Sensor LH12With current transformer LH10The sum of electric current detected, the electric current LH detected10Current direction is by flowing out neutral section Ta
Become flowing into neutral section Ta, the electric current LH detected12Current direction is constant.
Fig. 2 shows the connection relationships of protective device of the present invention and shunt tripping device: current transformer LH12, current transformer
LH10、LH1The electric current of left arm contact net T1, right arm contact net T2 and neutral section Ta are detected respectively, and are separately connected feeder line F12 guarantor
The input terminal of protection unit BH12, feeder line F10 protective device BH10 and neutral section Ta shunt tripping protective device LB；Feeder line F12 protection dress
The output end for setting BH12, feeder line F10 protective device BH10 and neutral section Ta shunt tripping protective device LB is separately connected breaker DL12、
Breaker DL10, breaker DL1Control terminal.
Claims (1)
1. a kind of cophase supply traction substation protection for feed line trip method, the tractive transformer of the traction substation is from public
Power grid obtains A, B, C three-phase electric energy, and a phase electricity exported after cophase supply device compensates is divided into b phase electricity, a phase electricity
Three tunnels, the first via is through feeder line F12 and breaker DL12And current transformer LH12It is connected to left arm contact net T1, the second tunnel is through presenting
Line F10 and breaker DL10And current transformer LH10It is connected to right arm contact net T2, third road is through feeder line F1 and breaker DL1And
Current transformer LH1It is connected to neutral section Ta；The b is electrically connected rail and ground；Current transformer LH12, current transformer
LH10, current transformer LH1It is separately connected protective device BH12, the feeder line F10 protective device BH10 and neutral section Ta of feeder line F12
The input terminal of shunt tripping protective device LB, and the electric current of left arm contact net T1 and right arm contact net T2 and neutral section Ta are detected respectively；
The output end of the shunt tripping protective device LB of the protective device BH12 of feeder line F12, the protective device BH10 of feeder line F10 and neutral section Ta
It is separately connected breaker DL12, breaker DL10, breaker DL1Control terminal；Breaker DL12, breaker DL10, breaker DL1
For being each turned off left arm contact net T1, right arm contact net T2 and neutral section Ta in case of a fault；Note GJ1 is left arm contact net
The sectionaliser of T1 and neutral section Ta, GJ2 are the sectionaliser of right arm contact net T2 and neutral section Ta；When normal operation, breaker
DL12, breaker DL10, breaker DL1It is closed, left and right arm contact net T1 and T2 connection, constitutes cophase supply；Its feature exists
In:
(1) when left arm contact net T1 failure, protective device BH12 cut-off breaker DL12, left arm contact net T1 is caused to have a power failure；Together
Sample, when right arm contact net T2 failure, protective device BH10 cut-off breaker DL10, right arm contact net T2 is caused to have a power failure；
(2) increase shunt tripping protective device LB in neutral section Ta；A, when left arm contact net T1 failure, protective device BH12 is issuing jump
Lock, which instructs, gives breaker DL12While, the shunt tripping protective device LB of neutral section Ta is given in hair shunt tripping order；Shunt tripping protective device LB is received
To when shunt tripping order, if having load on current neutrality section Ta, and This train is bound for XXX from right to left, then to disconnect open circuit immediately
Device DL1, make neutral section Ta power loss；If current neutrality section Ta is zero load, the shunt tripping order is remembered at the appointed time, and after
It is continuous to detect whether neutral section has load, once detect load cut-off breaker DL immediately1, exceed schedule time, then involution
Shunt tripping order；B, when right arm contact net T2 failure, protective device BH10 gives breaker DL in sending trip command10While, hair
Shunt tripping protective device LB is given in shunt tripping order；When shunt tripping protective device LB receives shunt tripping order, if had on current neutrality section Ta negative
Lotus, and This train is bound for XXX for from left to right, then trip breaker DL immediately1, make neutral section Ta power loss；If current neutrality section
Ta is zero load, then remembers the shunt tripping order at the appointed time, and continues to test whether neutral section Ta has load, in the stipulated time
It is interior, it has detected that load trips immediately, has exceeded schedule time, then the order of involution shunt tripping；
(3) when neutral section Ta failure, if it is single line electric railway then by breaker DL12, breaker DL1, breaker DL10
It trips simultaneously, makes left arm contact net T1, right arm contact net T2 and neutrality section Ta power loss simultaneously；If multiple line electric railway then will
Breaker DL1Tripping, it is assumed that This train is bound for XXX for from left to right, then tripping circuit breaker DL simultaneously12With breaker DL1Make left arm
Contact net and neutrality section Ta while power loss；If This train is bound for XXX for from right to left, tripping circuit breaker DL simultaneously10And open circuit
Device DL1Make right arm contact net T2 and neutrality section Ta power loss simultaneously；
(4) when This train is bound for XXX according to current transformer LH by neutral section Ta1, current transformer LH12, current transformer LH10Inspection
The electric current judgement measured: when train drives towards neutral section Ta and does not enter neutral section Ta from left arm contact net, current transformer LH1
Detect electric current very little and close to 0, current transformer LH12With current transformer LH10Detect that size of current is equal, electric current
Mutual inductor LH10Flow into neutral section Ta, current transformer LH12Flow out neutral section Ta；When vehicle enters neutral section Ta, Current Mutual Inductance
Device LH1The electric current detected, size are current transformer LH12With current transformer LH10The sum of, current transformer LH12Electric current side
Become flowing into neutral section Ta, current transformer LH to from outflow neutrality section Ta10Current direction it is constant；When train drives towards from right side
Neutral section Ta and when not entering neutral section Ta, current transformer LH1Detect electric current very little and close to 0, current transformer LH12
With current transformer LH10The size of current detected is equal, current transformer LH10Flow out neutral section Ta, current transformer LH12
Flow into neutral section Ta；When train enters neutral section Ta, current transformer LH1The electric current detected, size are current transformer
LH12With current transformer LH10The sum of electric current detected, the electric current LH detected10Current direction is become from outflow neutrality section Ta
Flow into neutral section Ta, the electric current LH detected12Current direction is constant.
Priority Applications (1)
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|---|---|---|---|
| CN201910535614.2A CN110239398B (en) | 2019-06-20 | 2019-06-20 | In-phase power supply traction substation feeder protection tripping method |
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| CN201910535614.2A CN110239398B (en) | 2019-06-20 | 2019-06-20 | In-phase power supply traction substation feeder protection tripping method |
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| CN110239398B CN110239398B (en) | 2020-12-18 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606000A (en) * | 2019-09-25 | 2019-12-24 | 中铁第一勘察设计院集团有限公司 | Contact network short-circuit protection system and method of through type in-phase power supply system |
| CN113036733A (en) * | 2020-09-21 | 2021-06-25 | 西南交通大学 | Traction network power supply arm relay protection method based on directional current element |
| CN113022389A (en) * | 2020-09-21 | 2021-06-25 | 西南交通大学 | Relay protection method for traction network power supply arm based on directional impedance element |
| CN114094547A (en) * | 2021-10-27 | 2022-02-25 | 南京南瑞继保电气有限公司 | Protection method and protection device for compound line direct supply traction network |
| CN114447907A (en) * | 2022-01-10 | 2022-05-06 | 西南交通大学 | Control method of regenerative braking energy device for direct-current traction power supply system |
| CN114714991A (en) * | 2022-05-07 | 2022-07-08 | 中铁第一勘察设计院集团有限公司 | Power supply and protection scheme for electric split-phase neutral section of electrified railway |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201805212U (en) * | 2010-08-10 | 2011-04-20 | 北京浩天中胜科技有限公司 | Incoming line open-phase protection device of traction substation |
| CN102390290A (en) * | 2011-09-19 | 2012-03-28 | 余家华 | Traction power supply system capable of realizing divided power supply of uplink power supply arm and downlink power supply arm in an asynchronous transmission (AT) way |
| JP2015067241A (en) * | 2013-09-30 | 2015-04-13 | 株式会社東芝 | Dc feeding protection control system |
| CN106786470A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of power network neutral point flexible ground system |
| CN107351730A (en) * | 2017-07-18 | 2017-11-17 | 中铁第四勘察设计院集团有限公司 | A kind of electric railway train does not power off automatic neutral-section passing system and its operation method |
| CN108909541A (en) * | 2018-08-24 | 2018-11-30 | 西南交通大学 | A kind of electric railway AT institute powered construction |
| CN208672745U (en) * | 2018-08-24 | 2019-03-29 | 西南交通大学 | A kind of electric railway switching station fault detection means |
| CN208665010U (en) * | 2018-08-24 | 2019-03-29 | 西南交通大学 | A kind of electric railway AT institute powered construction |
| CN109599849A (en) * | 2018-11-29 | 2019-04-09 | 成都尚华电气有限公司 | A kind of electric railway AT sections of differential protecting methods |
-
2019
- 2019-06-20 CN CN201910535614.2A patent/CN110239398B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201805212U (en) * | 2010-08-10 | 2011-04-20 | 北京浩天中胜科技有限公司 | Incoming line open-phase protection device of traction substation |
| CN102390290A (en) * | 2011-09-19 | 2012-03-28 | 余家华 | Traction power supply system capable of realizing divided power supply of uplink power supply arm and downlink power supply arm in an asynchronous transmission (AT) way |
| JP2015067241A (en) * | 2013-09-30 | 2015-04-13 | 株式会社東芝 | Dc feeding protection control system |
| CN106786470A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of power network neutral point flexible ground system |
| CN107351730A (en) * | 2017-07-18 | 2017-11-17 | 中铁第四勘察设计院集团有限公司 | A kind of electric railway train does not power off automatic neutral-section passing system and its operation method |
| CN108909541A (en) * | 2018-08-24 | 2018-11-30 | 西南交通大学 | A kind of electric railway AT institute powered construction |
| CN208672745U (en) * | 2018-08-24 | 2019-03-29 | 西南交通大学 | A kind of electric railway switching station fault detection means |
| CN208665010U (en) * | 2018-08-24 | 2019-03-29 | 西南交通大学 | A kind of electric railway AT institute powered construction |
| CN109599849A (en) * | 2018-11-29 | 2019-04-09 | 成都尚华电气有限公司 | A kind of electric railway AT sections of differential protecting methods |
Non-Patent Citations (1)
| Title |
|---|
| 李群湛等: "《交流电气化铁路牵引电缆供电分析》", 《西南交通大学学报》 * |
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| CN113036733B (en) * | 2020-09-21 | 2022-11-22 | 西南交通大学 | Relay protection method for traction network power supply arm based on directional current element |
| CN113022389B (en) * | 2020-09-21 | 2022-11-29 | 西南交通大学 | Relay protection method for traction network power supply arm based on directional impedance element |
| CN114094547A (en) * | 2021-10-27 | 2022-02-25 | 南京南瑞继保电气有限公司 | Protection method and protection device for compound line direct supply traction network |
| CN114094547B (en) * | 2021-10-27 | 2023-09-08 | 南京南瑞继保电气有限公司 | Protection method and protection device for compound line direct-supply traction network |
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| CN114447907B (en) * | 2022-01-10 | 2023-06-27 | 西南交通大学 | Control method of regenerative braking energy device for direct-current traction power supply system |
| CN114714991A (en) * | 2022-05-07 | 2022-07-08 | 中铁第一勘察设计院集团有限公司 | Power supply and protection scheme for electric split-phase neutral section of electrified railway |
| CN114714991B (en) * | 2022-05-07 | 2024-04-30 | 中铁第一勘察设计院集团有限公司 | Neutral section power supply and protection method for electrified railway electric split phase |
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