CN110091757A - A kind of ground automatic neutral-section passing device having redundancy feature and control method - Google Patents
A kind of ground automatic neutral-section passing device having redundancy feature and control method Download PDFInfo
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- CN110091757A CN110091757A CN201810096242.3A CN201810096242A CN110091757A CN 110091757 A CN110091757 A CN 110091757A CN 201810096242 A CN201810096242 A CN 201810096242A CN 110091757 A CN110091757 A CN 110091757A
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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
- B60M3/04—Arrangements for cutting in and out of individual track sections
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Abstract
The present invention discloses a kind of ground automatic neutral-section passing device for having redundancy feature and control method, the device includes two main switch units being connected between two sides supply arm and neutral section, by the on-off for successively controlling two main switch units when train crosses phase-separating section, commutation is carried out with control, it further include backup circuit breaker unit and redundancy switch control unit interconnected, the both ends of backup circuit breaker unit are connect with the both ends of two main switch units respectively, redundancy switch control unit is controlled when a main switch cell failure, the main switch unit of switching access backup circuit breaker unit substitution failure.The present invention can be realized the redundancy feature of ground automatic passing over of neutral section, and have many advantages, such as structure it is simple, it is at low cost, do not influence original device operation and using flexible.
Description
Technical field
The present invention relates to electric railway traction power supply technique field more particularly to a kind of ground for having redundancy feature certainly
Dynamic passing phase insulator device and control method.
Background technique
Electrification railway contact net is using single phase industrial frequence ac power supply method, in order to reduce Three-phase Power Systems power supply network
Voltage unbalance factor and improve power grid utilization rate, electric railway using segmentation split-phase power supply, i.e., voltage-phase difference
Two supply arms between be embedded in the differential gap of a Duan Wu electricity, it is smoothed by overlap between each supply arm and differential gap
It crosses.
In order to reduce the adverse effect of contact net electricity phase-separating section, presently mainly certainly using vehicle-mounted automatic passing over of neutral section or ground
Split-phase two ways was moved, wherein vehicle-mounted automatic passing over of neutral section mode is as shown in Figure 1, when train is obtained from the excessive of terrestrial transmission
After phase anticipating signal, confirmed first, the trigger pulse for then blocking traction convertor (is equal to driver when crossing split-phase manually
Traction handle is returned to zero), delay disconnects main circuit breaker, and train coasting is made to pass through non-Electric region；After through non-Electric region, according still further to phase
Anti- sequence restarts train.Above-mentioned vehicle-mounted automatic passing over of neutral section mode be substantially it is a kind of powered off split-phase, power off area head,
Speed loss is big, tractive force is lost seriously, and overvoltage phenomenon is serious, will affect the safe operation of electrical equipment.
Ground automatic passing over of neutral section mode can be divided into mechanical switch ground automatic passing over of neutral section and electricity according to the switchtype of use
Sub switch ground automatic passing over of neutral section is reached by the successive switching of two sets of switches to differential gap when train passes through phase-separating section
The purpose of power supply can greatly reduce time of the train without electricity, while reduce speed and loss of traction.But the automatic mistake in ground
Split-phase mode is necessarily dependent upon the normal work of two sets of switches, this two sets switches may be damaged in the long-term use
Etc. failures, and entirely mistake phase process is unable to complete when any a set of switch breaks down, so that the redundancy of whole device
Reliability is low, cannot ensure reliable and stable operation when train crosses split-phase.Typical ground automatic neutral-section passing device such as Fig. 2 institute
Show, automatic passing over of neutral section is realized by the switching of two groups of thyristor controlled series compensations, but as above-mentioned, when wherein any one group of thyristor controlled series compensation
When breaking down, whole device cisco unity malfunction, equipment dependability is poor.
For the redundant reliability for improving passing phase insulator device, having practitioner to propose is respectively that two sets of switch settings are independent spare
Switch, but be usually all that a set of backup circuit breaker is arranged in respectively every suit switch, when wherein a set of switch breaks down, cut
It changes and uses corresponding a set of backup circuit breaker.But above-mentioned is respectively two sets of modes for switching setting backup circuit breaker, it is same due to needing
When be arranged two sets of backup circuit breakers, increase equipment cost, especially with electronic switch as it is spare when, can greatly promote and set
Standby cost, and the probability that two sets switches break down simultaneously is smaller, is usually all Single Point of Faliure, that is, only has wherein a set of switch and deposit
In failure, two sets of independent backup circuit breakers, which are arranged, can make utilization rate of equipment and installations low.
Summary of the invention
The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one
Kind can be realized the redundancy feature of ground automatic passing over of neutral section, and structure it is simple, it is at low cost, do not influence original device operation and use
Flexible ground automatic neutral-section passing device and control method.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of ground automatic neutral-section passing device having redundancy feature, including it is connected to two sides supply arm and neutral section
Between two main switch units, by successively controlling the on-off of two main switch units when train crosses phase-separating section, with
Control carries out commutation, it is characterised in that: and it further include backup circuit breaker unit and redundancy switch control unit interconnected, it is described
The both ends of backup circuit breaker unit are connect with the both ends of two main switch units respectively, the redundancy switch control unit control
For system when a main switch cell failure, switching accesses the main switch list of the backup circuit breaker unit substitution failure
Member.
Further improvement as apparatus of the present invention: the redundancy switch control unit is by connecting the backup circuit breaker list
Link circuit between member and the main switch unit of failure, control switching access the backup circuit breaker unit substitution failure
The main switch unit.
Further improvement as apparatus of the present invention: the backup circuit breaker unit passes through a high-voltage switch gear and two respectively
The main switch unit connection, each high-voltage switch gear are connect with the redundancy switch control unit, each described by controlling
The on-off of high-voltage switch gear, control switching access the main switch unit of the backup circuit breaker unit substitution respective side.
Further improvement as apparatus of the present invention: the high-voltage switch gear is specially that disconnecting switch, breaker or load are opened
Close etc..
Further improvement as apparatus of the present invention: the backup circuit breaker unit, main switch unit are mechanical switch list
Member or electronic switch unit.
Further improvement as apparatus of the present invention: the mechanical switch unit is breaker or on-load switch；It is described
Electronic switch unit includes more than one thyristor controlled series compensation, and the thyristor controlled series compensation includes the two or more of inverse parallel connection
Thyristor.
Further improvement as apparatus of the present invention: further including the fault detection connecting with the redundancy switch control unit
Unit, for the malfunction of the real-time detection two main switch units, when detecting one of them described main switch unit
When breaking down, corresponding control instruction is sent to the redundancy switch control unit.
Further improvement as apparatus of the present invention: further including logic control element and for detecting train position signal
Position detection unit, the logic control element connect with the position detection unit, two main switch units respectively,
The logic control element is when train crosses phase-separating section, the train position signal detected according to the position detection unit, point
Not Kong Zhi two main switch units closures, disconnect to carry out commutation.
The present invention further provides the control method using above-mentioned ground automatic neutral-section passing device, step includes:
S1. the malfunction of the real-time detection two main switch units；
S2. when detecting the presence of the main switch cell failure, control switching accesses the backup circuit breaker unit to replace
For the main switch unit of failure；
S3. when train crosses phase-separating section, the backup circuit breaker unit and another described main switch unit closure is controlled, is broken
It opens to execute commutation.
Further improvement as control method of the present invention: in the step S2 by connect the backup circuit breaker unit with
Link circuit between the main switch unit of failure, control switching access the backup circuit breaker unit to substitute the institute of failure
State main switch unit.
Further improvement as control method of the present invention: it is connected in the step S2 especially by closure described spare
High-voltage switch gear between switch unit and the main switch unit of failure, switching access the backup circuit breaker unit and substitute failure
The main switch unit.
Further improvement as control method of the present invention: further including the main switch list when failure after the step S3
When member restores normal condition, control disconnects the backup circuit breaker unit to restore to access the corresponding main switch unit.
Compared with the prior art, the advantages of the present invention are as follows:
1) present invention is by the way that on the basis of two main switch units realization automatic passing over of neutral section are arranged, setting one is spare to be opened
Unit and redundancy switch control unit are closed, is connect respectively with two main switch units by backup circuit breaker unit, when any one
When main switch cell failure, the main switch unit of switching access backup circuit breaker unit substitution failure can be by a set of backup circuit breaker
Unit realizes the backup of two sets of main switch units simultaneously, to can still protect when any a set of main switch unit breaks down
It holds the normal operation of device and does not influence device performance, effectively improve the redundant reliability of device, while a set of standby by being multiplexed
With switch unit, cost needed for can greatly reducing device improves the utilization rate of equipment.
2) the further backup circuit breaker unit of the present invention passes through a high-voltage switch gear respectively and connect with two main switch units, leads to
The on-off for controlling each high-voltage switch gear is crossed, control switching access backup circuit breaker unit substitutes the main switch unit of respective side, in situ
On the basis of the automatic neutral-section passing device of face, it is only necessary to increase and a set of backup circuit breaker and two additional high pressure switches, Ji Keshi are set
Now to the spare of two sets of main switches, no setting is required other hardware configurations, the structure of whole device is simple and cost of implementation is low.
Detailed description of the invention
Fig. 1 is the realization principle schematic diagram of vehicle-mounted automatic passing over of neutral section mode.
Fig. 2 is the principle schematic diagram of typical ground automatic passing over of neutral section.
Fig. 3 is the structural schematic diagram for the ground automatic neutral-section passing device that the embodiment of the present invention 1 has redundancy feature.
Fig. 4 is the schematic illustration that redundancy ground automatic passing over of neutral section is realized in the embodiment of the present invention 1.
Fig. 5 is the structural schematic diagram for the ground automatic neutral-section passing device that the embodiment of the present invention 2 has redundancy feature.
Fig. 6 is the structural schematic diagram for the ground automatic neutral-section passing device that the embodiment of the present invention 3 has redundancy feature.
Fig. 7 is the structural schematic diagram for the ground automatic neutral-section passing device that the embodiment of the present invention 4 has redundancy feature.
Specific embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
Embodiment 1:
As shown in figure 3, the present embodiment has the ground automatic neutral-section passing device of redundancy feature, including it is connected to two sides
Two main switches unit V1, V2 between supply arm and neutral section, are connected across two both ends neutral section insulator JY1, JY2 respectively,
One of main switch unit is connected between side supply arm and neutral section, another main switch unit is connected to other side confession
Between electric arm and neutral section, the on-off of two main switch units V1, V2 are successively controlled when train crosses phase-separating section, to control successively
Switching supply arm a, supply arm b is neutral section power supply, realizes automatic passing over of neutral section；It further include backup circuit breaker unit V3 interconnected
And redundancy switch control unit, the both ends of backup circuit breaker unit V3 connect with the both ends of two main switch units V1, V2 respectively
It connects, redundancy switch control unit is controlled when a main switch unit V1/V2 failure, switching access backup circuit breaker unit V3 substitution
The main switch unit V1/V2 of failure.
The present embodiment successively controls two masters when train crosses phase-separating section by two sets of main switch units (V1, V2) of setting
The on-off of switch unit V1, V2 realize ground automatic passing over of neutral section, are based on ground automatic passing over of neutral section mode, can shorten train fortune
The row time improves the service life of high voltage electric equipment on route transport power and vehicle, while can reduce operation maintenance cost.
The present embodiment is on the basis of being arranged two main switch units (V1, V2) realization ground automatic passing over of neutral section, setting one
A backup circuit breaker unit V3 and redundancy switch control unit, by backup circuit breaker unit V3 respectively with two main switch units (V1,
V2 it) connects, when any one main switch unit V1/V2 failure, the master of switching access backup circuit breaker list V3 member substitution failure is opened
Unit V1/V2 is closed, can realize the backup of two sets of main switch units (V1, V2) simultaneously by a set of backup circuit breaker unit V3, thus
When any a set of main switch unit V1/V2 breaks down, still device performance can not be influenced with the normal operation of holding meanss and,
The redundant reliability of device is effectively improved, while by being multiplexed a set of backup circuit breaker unit V3, can be greatly reduced needed for device
Cost, and improve equipment utilization rate.
In the present embodiment, redundancy switch control unit passes through the main switch unit for connecting backup circuit breaker unit V3 and failure
Link circuit between V1/V2, the main switch unit V1/V2 of control switching access backup circuit breaker unit V3 substitution failure.Work as inspection
When measuring main switch unit V1 and breaking down, backup circuit breaker unit V3 and main switch unit are connected in the control of redundancy switch control unit
The link circuit at the both ends V1, i.e., so that backup circuit breaker unit V3 is connected in parallel with main switch unit V1, to switch by backup circuit breaker
Unit V3 replaces main switch unit V1；Backup circuit breaker list is connected when detecting that main switch unit V2 redundancy switch control unit controls
Link circuit between first V3 and main switch unit V2, i.e., so that backup circuit breaker unit V3 is connected in parallel with main switch unit V2,
Main switch unit V2 is replaced by backup circuit breaker unit V3 with switching.
In the present embodiment, backup circuit breaker unit V3 passes through a high-voltage switch gear respectively and two main switch units V1, V2 connect
It connects, each high-voltage switch gear is connect with redundancy switch control unit, and by controlling the on-off of each high-voltage switch gear, control switching access is standby
With the main switch unit of switch unit substitution respective side.As shown in figure 3, the present embodiment high-voltage switch gear specifically includes high-voltage switch gear
QS1, QS2, backup circuit breaker unit V3 are connect by high-voltage switch gear QS1 with the both ends of main switch unit V1, backup circuit breaker unit V3
It is connect by high-voltage switch gear QS2 with the both ends of main switch unit V2, is opened by the way that closed high switch QS1/QS2 control access is spare
Unit V3 is closed to substitute main switch unit V1/V2.
Disconnecting switch can be used in above-mentioned high-voltage switch gear, can also use such as breaker, on-load switch certainly.
The present embodiment realizes the ground automatic passing over of neutral section of redundancy feature as shown in figure 4, wherein figure (a) corresponds to main switch list
First V1 failure, when main switch unit V1 failure, closed high switch QS1 can replace failure master by backup circuit breaker unit V3
Switch unit V1 work；Figure (b) corresponds to main switch unit V2 failure, when main switch unit V2 failure, closed high switch
QS2 can be worked by backup circuit breaker unit V3 instead of failure main switch unit V2.
By using above structure, it is only necessary to increase be arranged a set of backup circuit breaker and two additional high pressures switches (QS1,
QS2), can be realized to the spare of main switch unit V1, V2, no setting is required other hardware configurations, the structure letter of whole device
List and cost of implementation is low.
Further include the fault detection unit being connect with redundancy switch control unit in the present embodiment, is used for real-time detection two
The malfunction of a main switch unit V1, V2, when detecting that one of main switch unit V1/V2 breaks down, transmission pair
The control instruction answered gives redundancy switch control unit.
The ground automatic neutral-section passing device that the present embodiment has redundancy feature further includes logic control element and for examining
Survey train position signal position detection unit, logic control element respectively with position detection unit, two main switch units
(V1, V2) connection, logic control element are believed when train crosses phase-separating section according to the train position that position detection unit detects
Number, two main switch unit closures are controlled respectively, are disconnected to carry out commutation.Position detection unit, which specifically includes, to be separately positioned on
Property section side front end, need at commutation position among neutral section and the neutral setting of section rear end sensor CG1, CG2 and CG3, with point
Not Jian Ce train whether will enter neutral section, whether reach commutation position and whether will leave neutral section.
As shown in figure 3, two main switch units specifically distinguish circuit breaker Q F1 in the automatic neutral-section passing device of the present embodiment ground
~QF3 is connect with two supply arms and neutral section, be can control by circuit breaker Q F1~QF3 and is disconnected connecing for two main switch units
Enter.
The present embodiment utilizes the control method of above-mentioned ground automatic neutral-section passing device, and step includes:
S1. the malfunction of two main switch units of real-time detection；
S2. when detecting the presence of main switch cell failure, control switching access backup circuit breaker unit is to substitute failure
Main switch unit；
S3. when train crosses phase-separating section, control backup circuit breaker unit is with another main switch unit closure, disconnection to execute
Commutation.
In the present embodiment above-mentioned steps S2, especially by connect backup circuit breaker unit V3 and failure main switch unit V1,
Link circuit between V2, control switching access backup circuit breaker unit to substitute the main switch unit of failure, i.e., ought detect master
When switch unit V1 breaks down, the link circuit of backup circuit breaker unit V3 and the both ends main switch unit V1 are connected in control, even if
It obtains backup circuit breaker unit V3 and main switch unit V1 to be connected in parallel, main switch unit is replaced by backup circuit breaker unit V3 with switching
V1；When detect the control of main switch unit V2 redundancy switch control unit connect backup circuit breaker unit V3 and main switch unit V2 it
Between link circuit, i.e., so that backup circuit breaker unit V3 is connected in parallel with main switch unit V2, with switch by backup circuit breaker unit
V3 replaces main switch unit V2.
In the present embodiment, in step S2 especially by closure be connected to backup circuit breaker unit and failure main switch unit it
Between high-voltage switch gear, switching access backup circuit breaker unit substitution failure main switch unit, that is, pass through closed high switch QS1/
Backup circuit breaker unit V3 is to substitute main switch unit V1/V2 for QS2 control access.
Whether the present embodiment judges main switch unit V1, V2 with specific reference to the fault status information of main switch unit V1, V2
It breaks down, after the main switch unit V1/V2 failure that original puts into operation, is closed corresponding high-voltage switch gear QS1/QS2, then by standby
The main switch unit V1/V2 of failure is replaced to work with switch unit V3, by the above method, control is realized simply, and is made
When any one main switch unit V1/V2 failure, it can guarantee that ground automatic neutral-section passing device is still up and property retention
It is constant.
It further include when the main switch unit of failure restores normal condition in the present embodiment, after step S3, control disconnects standby
With switch unit to restore to access corresponding main switch unit.
Embodiment 2:
As shown in figure 5, the present embodiment is substantially the same manner as Example 1, the difference is that main switch unit V1, main switch list
First V2 and backup circuit breaker unit V3 is mechanical switch, and breaker, on-load switch etc. specifically can be used, mechanical switch
It is at low cost, arc extinguishing ability is strong, cost needed for being further reduced device based on fully mechanical construction of switch.
Embodiment 3:
As shown in fig. 6, the present embodiment is substantially the same manner as Example 1, the difference is that main switch unit V1, main switch list
First V2 and backup circuit breaker unit V3 is electronic switch, and electronic switch specifically uses thyristor controlled series compensation, thyristor controlled series compensation
More than two thyristors including inverse parallel connection.
The response speed of mechanical switch is slow and can have the problems such as shoving, overvoltage, the meeting pair after failure is out of service
System performance brings adverse effect, and the present embodiment realizes the connection and disjunction of main circuit, response using full electronic construction of switch
Speed is fast, can accurately control switching-on phase, inhibit to close a floodgate and shove, and zero-crossing switching may be implemented, reduce overvoltage, thus
Realize flexible automatic passing over of neutral section.
Embodiment 4:
As shown in fig. 7, the present embodiment is substantially the same manner as Example 1, the difference is that main switch unit V1, main switch list
The composite switch structure that first V2 and backup circuit breaker unit V3 uses mechanical switch to mix with electronic switch, wherein scheming
(a) electronic switch that backup circuit breaker unit V3 uses thyristor controlled series compensation using mechanical switch, main switch unit, figure are corresponded to
(b) it corresponds to backup circuit breaker unit V3 and uses mechanical switch using electronic switch, the main switch unit of thyristor controlled series compensation.
The composite switch structure that the present embodiment uses mechanical switch to mix with electronic switch, can be in conjunction with mechanical
Switch realizes the connection and disjunction of circuit with the advantage of electronic switch.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (12)
1. a kind of ground automatic neutral-section passing device for having redundancy feature, including be connected to two sides supply arm and neutral section it
Between two main switch units, by successively controlling the on-off of two main switch units when train crosses phase-separating section, with control
System carries out commutation, it is characterised in that: and it further include backup circuit breaker unit and redundancy switch control unit interconnected, it is described standby
It is connect respectively with the both ends of two main switch units with the both ends of switch unit, the redundancy switch control unit control
When a main switch cell failure, switching accesses the main switch unit of the backup circuit breaker unit substitution failure.
2. the ground automatic neutral-section passing device according to claim 1 for having redundancy feature, it is characterised in that: the redundancy
Switch control unit is controlled by the link circuit connected between the backup circuit breaker unit and the main switch unit of failure
Switching accesses the main switch unit of the backup circuit breaker unit substitution failure.
3. the ground automatic neutral-section passing device according to claim 2 for having redundancy feature, it is characterised in that: described spare
Switch unit passes through a high-voltage switch gear respectively and connect with two main switch units, each high-voltage switch gear with it is described superfluous
Remaining switch control unit connection, by controlling the on-off of each high-voltage switch gear, control switching accesses the backup circuit breaker unit
Substitute the main switch unit of respective side.
4. the ground automatic neutral-section passing device according to claim 3 for having redundancy feature, it is characterised in that: the high pressure
Switch is specially one of disconnecting switch, breaker and on-load switch.
5. having the ground automatic neutral-section passing device of redundancy feature, feature described according to claim 1~any one of 4
Be: the backup circuit breaker unit, main switch unit are mechanical switch unit or electronic switch unit.
6. the ground automatic neutral-section passing device according to claim 5 for having redundancy feature, it is characterised in that: the machinery
Formula switch unit is on-load switch or high-voltage switch gear；The electronic switch unit includes more than one thyristor controlled series compensation, institute
State more than two thyristors that thyristor controlled series compensation includes inverse parallel connection.
7. having the ground automatic neutral-section passing device of redundancy feature, feature described according to claim 1~any one of 4
It is: further includes the fault detection unit being connect with the redundancy switch control unit, two masters opens for real-time detection
The malfunction for closing unit sends corresponding control instruction when detecting that one of them described main switch unit breaks down
To the redundancy switch control unit.
8. having the ground automatic neutral-section passing device of redundancy feature, feature described according to claim 1~any one of 4
It is: further includes logic control element and the position detection unit for detecting train position signal, the logic control list
Member is connect with the position detection unit, two main switch units respectively, and the logic control element crosses split-phase in train
Qu Shi, the train position signal detected according to the position detection unit, control respectively two main switch units closures,
It disconnects to carry out commutation.
9. using the control method of ground automatic neutral-section passing device described in any one of claim 1~8, feature exists
In step includes:
S1. the malfunction of the real-time detection two main switch units；
S2. when detecting the presence of the main switch cell failure, control switching accesses the backup circuit breaker unit to substitute event
The main switch unit of barrier；
S3. when train crosses phase-separating section, control the backup circuit breaker unit and another described main switch unit closure, disconnect with
Execute commutation.
10. control method according to claim 9, which is characterized in that by connecting described spare open in the step S2
The link circuit between unit and the main switch unit of failure is closed, control switching accesses the backup circuit breaker unit to substitute
The main switch unit of failure.
11. control method according to claim 10, which is characterized in that be connected in the step S2 especially by closure
High-voltage switch gear between the backup circuit breaker unit and the main switch unit of failure, switching access the backup circuit breaker unit
Substitute the main switch unit of failure.
12. according to control method described in claim 9 or 10 or 11, which is characterized in that further include when event after the step S3
When the main switch unit of barrier restores normal condition, it is corresponding described to restore to access that control disconnects the backup circuit breaker unit
Main switch unit.
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| CN201810096242.3A CN110091757B (en) | 2018-01-31 | 2018-01-31 | Ground automatic neutral section passing device with redundancy function and control method |
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| CN201810096242.3A CN110091757B (en) | 2018-01-31 | 2018-01-31 | Ground automatic neutral section passing device with redundancy function and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103929A (en) * | 2021-03-23 | 2021-07-13 | 北京交通大学 | Composite switch structure applied to railway ground automatic passing neutral section system |
| CN114103737A (en) * | 2020-09-01 | 2022-03-01 | 株洲中车时代电气股份有限公司 | Train power supply system and control equipment for automatic passing through neutral section of train |
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| US20170169976A1 (en) * | 2015-12-09 | 2017-06-15 | Thales Canada Inc | Seamless switchover system and method |
| CN105799553A (en) * | 2016-04-22 | 2016-07-27 | 中国船舶重工集团公司第七〇二研究所 | Electronic ground automatic neutral section passing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103737A (en) * | 2020-09-01 | 2022-03-01 | 株洲中车时代电气股份有限公司 | Train power supply system and control equipment for automatic passing through neutral section of train |
| CN113103929A (en) * | 2021-03-23 | 2021-07-13 | 北京交通大学 | Composite switch structure applied to railway ground automatic passing neutral section system |
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