CN207790398U - Railroad train crosses split-phase power supply system and railroad train - Google Patents
Railroad train crosses split-phase power supply system and railroad train Download PDFInfo
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- CN207790398U CN207790398U CN201721698762.9U CN201721698762U CN207790398U CN 207790398 U CN207790398 U CN 207790398U CN 201721698762 U CN201721698762 U CN 201721698762U CN 207790398 U CN207790398 U CN 207790398U
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Abstract
A kind of railroad train of the utility model embodiment offer crosses split-phase power supply system and railroad train, and railroad train provided by the utility model crosses split-phase power supply system and includes：Main circuit breaker, mobile transformer, adjusts second voltage amplitude is less than first voltage amplitude and second voltage switching frequency is more than first voltage switching frequency first control device and motor at arrester；The both ends of main circuit breaker are connect with the primary side of contact net and mobile transformer respectively, and one end ground connection of arrester, the other end is connect with the primary side of main circuit breaker and mobile transformer, and the both ends of first control device are connect with the secondary side of mobile transformer and motor respectively；First voltage is the voltage that mobile transformer is inputted to first control device；Second voltage is the voltage that motor is inputted by first control device to mobile transformer.The induced voltage of mobile transformer primary side when the utility model can reduce split-phase, provides safe supply voltage when crossing split-phase for railroad train.
Description
Technical field
The utility model embodiment is related to railway electrification technical field more particularly to a kind of railroad train crosses split-phase power supply
System and railroad train.
Background technology
The railway electrification technology in China has obtained development at full speed in recent years.Currently, China's electric railway traction supplies
Electricity uses single phase industrial frequency AC system formula, in order to balance each phase load of three-phase alternating current Force system as far as possible, generally uses subregion
The traction power supply scheme of rotation phase sequence.Phase fault in order to prevent needs one section of setting between the adjacent power supply zone of different phase sequences
Usually uncharged neutral section carries out electric insulation separation, referred to as electric split-phase or split-phase.
It can not be obtained from contact net when electric locomotive and/or EMU (hereafter referred to collectively as " railroad train ") pass through phase-separating section
Energy, railroad train is taken to pass through phase-separating section by the inertia coasting of itself.In order to improve the comfort of vehicle, drawn when crossing split-phase
System needs to be powered to the auxiliary system of railroad train, railroad train power supply system.The mistake split-phase of independent winding power supply supplies
Electric system because it is simple in structure, light-weight, efficient the advantages that, be widely used.It powers when carrying out split-phase independent winding
When, main circuit breaker disconnects, and traction electric machine carries out braking and by the energy feedback of braking to mobile transformer secondary side, according to transformer
Basic functional principle, will produce corresponding induced voltage, can be used for the confession of the auxiliary system and railroad train to railroad train
Electric system is powered.At the same time, very high voltage can be induced in the primary side of mobile transformer, this primary side high induction voltage
Arrester scaling loss and/or main circuit breaker damage are may result in, great security risk is caused.
In conclusion there are security risks for the mistake split-phase power supply system of railroad train in the prior art, reliability is not high, because
This, is there is an urgent need for a kind of safe, the high mistake split-phase power supply system of reliability.
Utility model content
A kind of railroad train of the utility model embodiment offer crosses split-phase power supply system and railroad train, to solve existing iron
It's the problem of split-phase power supply system pasts road train, realizes safe mistake split-phase power supply.
In a first aspect, a kind of railroad train of the utility model embodiment offer crosses split-phase power supply system, including：
Main circuit breaker, mobile transformer, adjusts second voltage amplitude less than first voltage amplitude and second voltage at arrester
Switching frequency is more than the first control device and motor of first voltage switching frequency；
The both ends of main circuit breaker are connect with the primary side of contact net and mobile transformer respectively, one end ground connection of arrester, separately
One end is connect with the primary side of main circuit breaker and mobile transformer, the both ends of first control device respectively with the secondary side of mobile transformer
It is connected with motor；
First voltage is the voltage that mobile transformer is inputted to first control device when main circuit breaker is closed；
Second voltage is the electricity that motor is inputted by first control device to mobile transformer when main circuit breaker disconnects
Pressure.
Further, in one possible implementation, first control device includes：Draw four-quadrant and for controlling
The traction invertor of the amplitude of second voltage；
The both ends of traction four-quadrant are connect with the secondary side of mobile transformer and traction invertor respectively, traction invertor and electricity
Machine connects.
Further, in one possible implementation, traction four-quadrant includes：For controlling second voltage switch frequency
The switching device of rate.
Further, in one possible implementation, parallel filtering electricity between four-quadrant and traction invertor is drawn
Hold.
Further, in one possible implementation, further include：For controlling the voltage regulation for being input to assistant load
The both ends of two control devices, second control device are connect with the secondary side of mobile transformer and assistant load respectively.
Further, in one possible implementation, second control device includes auxiliary four-quadrant and auxiliary inversion
Device；
Auxiliary four-quadrant both ends connect respectively with the secondary side of mobile transformer and subordinate inverter, subordinate inverter with it is auxiliary
Load is helped to connect.
Further, in one possible implementation, parallel filtering electricity between four-quadrant and subordinate inverter is assisted
Hold.
Further, in one possible implementation, further include：Control is input to third of the row for the voltage of load
The both ends of control device, third control device are connected with the secondary side of mobile transformer and row for load respectively.
Further, in one possible implementation, third control device includes row for four-quadrant and filter capacitor,
Row are connected for the secondary side of four-quadrant and mobile transformer, and filter capacitor is in parallel for load for four-quadrant and row with row.
Second aspect, the utility model embodiment provide a kind of railroad train, including vehicle-mounted electrical equipment and any of the above-described
The railroad train of item crosses split-phase power supply system, and vehicle-mounted electrical equipment is crossed split-phase power supply system with railroad train and is electrically connected, railway train
Vehicle is crossed split-phase power supply system and is used for vehicle-mounted power supply for electrical equipment.
The utility model embodiment railroad train crosses split-phase power supply system and railroad train, is carried out by first control device
Control, when main circuit breaker disconnects, reduces the voltage that motor is inputted by first control device to the secondary side of mobile transformer
Amplitude, improve the switching frequency for the voltage that motor is inputted by first control device to the secondary side of mobile transformer, to
The induced voltage for reducing the primary side of mobile transformer eliminated insecurity when split-phase power supply, and provided a kind of peace
Full mistake split-phase power supply system, improves railroad train reliability of operation.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram that the utility model railroad train crosses split-phase power supply system embodiment one；
Fig. 2 is the structural schematic diagram that the utility model railroad train crosses split-phase power supply system embodiment two；
Fig. 3 is the structural schematic diagram that the utility model railroad train crosses split-phase power supply system embodiment three；
Fig. 4 is the structural schematic diagram that the utility model railroad train crosses split-phase power supply system example IV；
Fig. 5 is the structural schematic diagram that the utility model railroad train crosses split-phase power supply system embodiment five；
Fig. 6 is the structural schematic diagram that the utility model railroad train crosses split-phase power supply system embodiment six；
Fig. 7 is the structural schematic diagram of the utility model railroad train embodiment one.
Through the above attached drawings, it has been shown that the specific embodiment of the utility model will be hereinafter described in more detail.These
Attached drawing and verbal description are not intended to limit the range of the utility model design in any manner, but by reference to specific
Embodiment is the concept that those skilled in the art illustrate the utility model.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The range of the utility model protection.
Term " comprising " and " having " in the specification and claims of the utility model and their any deformations,
It is intended to cover and non-exclusive includes.Such as it contains the process of series of steps or unit, method, system, product or sets
Standby the step of being not limited to list or unit, but further include the steps that optionally not listing or unit, or optionally
Further include for the intrinsic other steps of these processes, method, product or equipment or unit.
"and/or" in the utility model describes the incidence relation of affiliated partner, indicates may exist three kinds of relationships, example
Such as, A and/or B can be indicated：Individualism A exists simultaneously A and B, these three situations of individualism B.The general table of character "/"
Show that forward-backward correlation object is a kind of relationship of "or".
" first " and " second " in the utility model only plays mark action, is not understood to indicate or imply sequence and closes
System, relative importance or the quantity for implicitly indicating indicated technical characteristic.
" one embodiment " or " embodiment " that the utility model specification is mentioned in the whole text means have with embodiment
The a particular feature, structure, or characteristic of pass is included at least one embodiment of the application.Therefore, go out everywhere in the whole instruction
Existing " in one embodiment " or " in one embodiment " not necessarily refers to identical embodiment.In addition, these are specific special
Sign, structure or characteristic can in any suitable manner combine in one or more embodiments.
Currently, the railway system in China is most of using single-phase 25KV, 50Hz Alternating Current Power Supply mechanism.Substation is along iron
Curb line is configured, and the online high-voltage electricity of high voltage power transmission, which is converted to 25KV, is input to overhead contact line, and railroad train passes through
Electric energy on overhead contact line is fetched interior driving train operation by pantograph, and through rail return current.In order to balance as far as possible
Each phase load of AC electric power systems, each substation use the traction power supply scheme of subregion rotation phase sequence.Different substation or
Same substation is due to the voltage-phase of output is inconsistent so that there are several not electric electric split-phases on contact net
Section.Railroad train can not obtain electric energy when passing through phase-separating section from contact net, pass through phase-separating section by the inertia coasting of itself.
In order to improve the comfort of vehicle, it is desirable to be able to when railroad train crosses split-phase be its power supply power supply system.In the prior art
Railroad train cross split-phase power supply system there are some potential safety problems, in view of the problems of the existing technology the utility model carries
Go out a kind of safe railroad train and crosses split-phase power supply system.
Fig. 1 is the structural schematic diagram that the utility model railroad train crosses split-phase power supply system embodiment one.As described in Figure 1,
Railroad train provided in this embodiment crosses split-phase power supply system：Main circuit breaker 11, arrester 15, mobile transformer
12, first control device 13 and motor 14.
Wherein, the both ends of main circuit breaker 11 are connect with the primary side of contact net 10 and mobile transformer 12 respectively, arrester 15
One end ground connection, the other end connect with the primary side of main circuit breaker 11 and mobile transformer 12, and the both ends of first control device 13 are divided
It is not connect with the secondary side of mobile transformer 12 and motor 14.
Main circuit breaker 11 is provided for controlling being switched off and between contact net 10 and railroad train according to contact net 10
Voltage and the operating current of railroad train determine its rated voltage and rated current, select specific type according to actual needs
Number, the present embodiment does not limit the concrete model of main circuit breaker 11.Arrester 15 is for protecting railroad train from lightning stroke
When the harm of high transient overvoltage, and limit time of afterflow and afterflow amplitude, be a kind of overvoltage protection device, select according to actual needs
Specific model is selected, the present embodiment does not limit the concrete model of arrester 15.
When railroad train is by non-phase-separating section, main circuit breaker 11 is closed, and railroad train obtains electric energy from contact net 10, is driven
Dynamic railroad train is advanced, and motor 14 is in traction mode at this time.Specifically, when main circuit breaker 11 is closed, mobile transformer 12
By electromagnetic induction, the voltage that contact net 10 is input to 12 primary side of mobile transformer is converted to lower first voltage from vehicle-mounted
The secondary side of transformer 12 exports, and is input to first control device 13, width of the first control device 13 to the first voltage of input
Value and phase are controlled, and to the controllable voltage of the input amplitude of motor 14 and phase, are provided to railroad train for motor 14
Traction power.
When railroad train passes through phase-separating section, main circuit breaker 11 disconnects, and railroad train can not obtain electric energy from contact net 10,
By the inertia coasting of itself by phase-separating section, motor 14 is in power generation mode at this time, and the kinetic energy of railroad train is converted to electricity
Can, provide electric energy to vehicle-mounted electrical equipment.Specifically, when main circuit breaker 11 disconnects, motor 14 is braked, into power generation mould
Formula converts the kinetic energy of railroad train to electric energy and is input to first control device 13, voltage of the first control device 13 to input
It is controlled, the secondary side of output amplitude and the controllable second voltage of switching frequency to mobile transformer 12.Mobile transformer 12 is logical
It crosses electromagnetic induction and generates induced voltage in other secondary sides, for being powered to vehicle-mounted electrical equipment.
When crossing split-phase, in order to avoid generating excessively high induced voltage in the primary side of mobile transformer 12, to main circuit breaker 11
And/or arrester 15 causes irreversible damage, brings insecurity for the operation of railroad train, first control device 13 can
To make the amplitude of second voltage be less than the amplitude of first voltage by adjusting.It is slightly dropped typically for the amplitude of second voltage
Low, certainly, the amplitude that the present embodiment reduces the amplitude of second voltage is not limited, and can be carried out according to actual needs
Adjustment.
Railroad train provided in this embodiment crosses split-phase power supply system, is controlled by first control device, main disconnected
When road device disconnects, the amplitude for the voltage that motor is inputted by first control device to the secondary side of mobile transformer is reduced, to
The induced voltage for reducing the primary side of mobile transformer eliminated insecurity when split-phase power supply, and provided a kind of peace
Full mistake split-phase power supply system, improves railroad train reliability of operation.
When in order to further reduce over split-phase, the induced voltage of mobile transformer primary side improved split-phase power supply system
Safety, on the basis of the above embodiments, first control device can also improve the switching frequency of second voltage so that second
The switching frequency of voltage is higher than the switching frequency of first voltage, i.e., first control device controls internal switch when main circuit breaker disconnects
The switching frequency of first control device internal switch device when the switching frequency of device is closed higher than main circuit breaker, and keep second
The fundamental frequency of voltage is constant, i.e., the fundamental frequency of second voltage is equal to the fundamental frequency of first voltage.
In order to be accurately controlled the amplitude of second voltage, in a kind of possible concrete implementation mode, the first control dress
Set may include traction four-quadrant and traction invertor.Wherein, draw the both ends of four-quadrant respectively with the secondary side of mobile transformer
It is connected with traction invertor, traction invertor is connect with motor.Traction invertor is used to control the amplitude of second voltage.
In order to be accurately controlled the switching frequency of second voltage, in one possible implementation, traction four-quadrant can
To include switching device, switching frequency of the switching device for controlling second voltage.
In order to make the DC voltage smooth steady between traction four-quadrant and traction invertor, can traction four-quadrant and
Parallel filtering capacitance between traction invertor.
On the basis of the above embodiments, the present embodiment is combined the various embodiments described above.Fig. 2 is the utility model iron
Road train crosses the structural schematic diagram of split-phase power supply system embodiment two.As shown in Fig. 2, railroad train provided in this embodiment is excessive
Phase power supply system includes：Main circuit breaker 11, arrester 15, mobile transformer 12, first control device 13 and motor 14, wherein
First control device 13 includes traction four-quadrant 131, filter capacitor 132 and traction invertor 133.Specific connection relation with it is upper
It is identical to state embodiment, details are not described herein again.It may include switching device, the concrete model root of switching device to draw four-quadrant 131
According to operating switch frequency select, the present embodiment is not limited concrete model.
When railroad train is by non-phase-separating section, main circuit breaker 11 is closed, and traction four-quadrant 131 is by mobile transformer 12 times
The exchange first voltage of side output is converted to direct voltage output, and filtered capacitance 132 is filtered, so that traction inversion
The input voltage of device 133 is stable DC voltage.Traction invertor 133 carries out the amplitude and phase of stable DC voltage
Regulation and control, the alternating voltage controllable to the input amplitude of motor 14 and phase, power supply machine 14 operate to railroad train and provide traction power.
When railroad train passes through phase-separating section, main circuit breaker 11 disconnects, and motor 14 enters power generation mode, by braking iron
The kinetic energy of road train is converted to electric energy, inputs traction invertor 133.Traction invertor 133 carries out the amplitude of its input voltage
It adjusts, the amplitude of control 133 output voltage of traction invertor is less than the amplitude of first voltage.Filter capacitor 132 is to drawing inversion
The voltage that device 133 exports is filtered, so that the voltage for being input to traction four-quadrant 131 is stable voltage.Draw four-quadrant
The switching frequency of 131 pairs of its input voltages is adjusted, and control traction four-quadrant 131 is output to the of 12 secondary side of mobile transformer
The switching frequency of two voltages is higher than the switching frequency of first voltage, i.e., traction four-quadrant 131 controls inside when main circuit breaker disconnects
The switching frequency of 131 internal switch device of four-quadrant is drawn when the switching frequency of switching device is closed higher than main circuit breaker.Specifically
, traction four-quadrant 131 can be by controlling the switches frequency of switching device, and then controls the switch frequency of second voltage
Rate.
Railroad train provided in this embodiment crosses split-phase power supply system, when main circuit breaker disconnects, passes through traction invertor
The amplitude for reducing second voltage improves the switching frequency of second voltage by drawing four-quadrant, to reduce vehicle-mounted change
The induced voltage of the primary side of depressor eliminated insecurity when split-phase power supply, provided a kind of safe mistake split-phase confession
Electric system improves railroad train reliability of operation.
Optionally, in one possible implementation, the fundamental frequency of first voltage and contact net voltage fundamental frequency
It is unanimously 50Hz, the HF switch frequency of first voltage is 350Hz, and the railroad train that the utility model embodiment provides crosses split-phase
Power supply system is on the basis of keeping the fundamental frequency 50Hz of second voltage constant, by reducing the amplitude of second voltage, simultaneously
The HF switch frequency of second voltage is improved, for example the switching frequency of second voltage can be improved to the switch frequency of first voltage
6 times of rate, the multiple specifically improved can specifically be set according to actual conditions, and the present embodiment is without limitation, to reduce sense
The voltage magnitude of transformer primary side should be arrived, but does not change the fundamental frequency for sensing original edge voltage.
May be used also in one possible implementation to further increase safety of the railroad train when crossing split-phase
To include second control device, the both ends of second control device are connect with the secondary side of mobile transformer and assistant load respectively, and
Two control devices are for controlling the voltage for being input to assistant load.Assistant load includes mainly that railroad train drives indoor electricity consumption
Equipment, such as the control device of control railroad train operation, communication apparatus, lighting apparatus, the indoor air-conditioning system of driving.
On the basis of the above embodiments, the present embodiment is combined the various embodiments described above.Fig. 3 is the utility model iron
Road train crosses the structural schematic diagram of split-phase power supply system embodiment three.As shown in figure 3, railroad train provided in this embodiment is excessive
Phase power supply system includes：Main circuit breaker 11, arrester 15, mobile transformer 12, first control device 13, motor 14 and second are controlled
Device 16 processed.Specific connection relation is same as the previously described embodiments, and details are not described herein again.
Second control device 16 is for controlling the voltage for being input to assistant load 17.Assistant load 17 includes mainly railway train
Electrical equipment in vehicle driver's cabin, such as drive indoor control device, communication apparatus, display equipment, lighting apparatus.Currently,
The most of railroad train assistant loads in China need the alternating voltage of 380V.Second control device 16 can be used for vehicle-mounted variable pressure
The voltage that device 12 exports is converted to the stabilization alternating current of individual event 380V so that assistant load 17 uses.
Railroad train provided in this embodiment crosses split-phase power supply system, when railroad train crosses split-phase, passes through the second control
The induced voltage of mobile transformer secondary side is converted to the voltage of suitable assistant load work by device, and assistant load is made to cross split-phase
When can work normally, further improve the safety of railroad train.
In order to provide stable operating voltage, in a kind of concrete implementation mode, second control device to assistant load
May include auxiliary four-quadrant and subordinate inverter.Wherein, assist the both ends of four-quadrant respectively with the secondary side of mobile transformer and
Subordinate inverter connects, and subordinate inverter is connect with assistant load.
In order to make the DC voltage smooth steady between auxiliary four-quadrant and subordinate inverter, can auxiliary four-quadrant and
Parallel filtering capacitance between subordinate inverter.
On the basis of the above embodiments, the present embodiment is combined the various embodiments described above.Fig. 4 is the utility model iron
Road train crosses the structural schematic diagram of split-phase power supply system example IV.As shown in figure 4, railroad train provided in this embodiment is excessive
Phase power supply system includes：Main circuit breaker 11, arrester 15, mobile transformer 12, first control device 13, motor 14 and second are controlled
Device 16 processed.Wherein, second control device 16 includes：Assist four-quadrant 161, filter capacitor 162 and subordinate inverter 163.Tool
The connection relation of body is same as the previously described embodiments, and details are not described herein again.
Railroad train provided in this embodiment crosses split-phase power supply system, when railroad train crosses split-phase, by assisting four-quadrant
The induced voltage of mobile transformer secondary side is converted to the voltage of suitable assistant load work by limit and subordinate inverter, keeps auxiliary negative
It can be worked normally when being loaded in split-phase, and further improve the safety of railroad train.
On the basis of the above embodiments, this implementation offer is a kind of can further increase relaxing when railroad train crosses split-phase
The power supply system of adaptive.Fig. 5 is the structural schematic diagram that the utility model railroad train crosses split-phase power supply system embodiment five.Such as figure
Shown in 5, railroad train provided in this embodiment crosses split-phase power supply system and includes：Main circuit breaker 11, arrester 15, mobile transformer
12, first control device 13, motor 14 and third control device 18.Wherein, the both ends of third control device 18 respectively with it is vehicle-mounted
The secondary side and row of transformer 12 are for 19 connection of load, other connection relations are with reference to above-described embodiment, and details are not described herein again.
Third control device 18 is used to control voltage of the input row for load 19.Row include mainly being used for railway for load 19
Electrical equipment in compartment, as the lighting apparatus in passenger train and/or goods train carriage, communication apparatus, display are set
Standby, refrigeration equipment, heating equipment etc..Third control device 18 is converted to the alternating voltage that 12 secondary side of mobile transformer incudes surely
Fixed DC voltage uses for row for load.
Railroad train provided in this embodiment crosses split-phase power supply system, when railroad train crosses split-phase, is controlled by third
The alternating voltage that mobile transformer secondary side incudes is converted to the DC voltage for being suitble to row for loaded work piece by device, makes row for load
It can be worked normally when crossing split-phase, further improve the comfort of railroad train.
On the basis of the above embodiments, in one possible implementation, third control device may include that row supply
Four-quadrant and filter capacitor connect wherein arranging for the secondary side of four-quadrant and mobile transformer, and filter capacitor is parallel to row for four-quadrant
Limit and row are between load.The alternating voltage that mobile transformer exports is converted to DC voltage, filter capacitor by row for four-quadrant
So that by arranging the DC voltage smooth steady for being input to row for load for four-quadrant.
On the basis of the above embodiments, the present embodiment is combined the various embodiments described above.Fig. 6 is the utility model iron
Road train crosses the structural schematic diagram of split-phase power supply system embodiment six.As shown in fig. 6, railroad train provided in this embodiment is excessive
Phase power supply system includes：Main circuit breaker 11, arrester 15, mobile transformer 12, first control device 13, motor 14, second are controlled
Device 16 and third control device 18 processed.Wherein, first control device 13 includes：Draw four-quadrant 131,132 and of filter capacitor
Traction invertor 133；Second control device 16 includes：Assist four-quadrant 161, filter capacitor 162 and subordinate inverter 163；The
Three control devices 18 include：Row are for four-quadrant 181 and filter capacitor 182.Specific connection relation please refers to the various embodiments described above,
Details are not described herein again.
Railroad train provided in this embodiment crosses split-phase power supply system, when railroad train crosses split-phase, passes through the first control
Device is controlled, and is reduced the amplitude for the voltage that motor is inputted by first control device to the secondary side of mobile transformer, is carried
The switching frequency for the voltage that high motor is inputted by first control device to the secondary side of mobile transformer, it is vehicle-mounted to reduce
The induced voltage of the primary side of transformer eliminated insecurity when split-phase power supply, and provided a kind of safe mistake split-phase
Power supply system improves railroad train reliability of operation；By second control device by the induced electricity of mobile transformer secondary side
Pressure is converted to the voltage of suitable assistant load work, so that assistant load is worked normally when crossing split-phase, further improves
The safety of railroad train；Being converted to the alternating voltage that mobile transformer secondary side incudes by third control device is suitble to row to supply
The DC voltage of loaded work piece enables row for being worked normally when being supported on split-phase, further improves relaxing for railroad train
Adaptive.
Fig. 7 is the structural schematic diagram of the utility model railroad train embodiment one.As shown in fig. 7, provided in this embodiment
Railroad train 70 includes：Vehicle-mounted electrical equipment 701 and the railroad train being connected electrically cross split-phase power supply system 702.Railway train
Vehicle crosses split-phase power supply system 702 for powering to vehicle-mounted electrical equipment 701.Wherein, railroad train cross split-phase power supply system 702 can
Split-phase power supply system is crossed with the railroad train provided using any of the above-described embodiment.
Railroad train provided in this embodiment crosses split-phase power supply system by railroad train and provides safety when crossing split-phase
Operating voltage, improve safety and comfort that railroad train crosses split-phase.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer read/write memory medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of railroad train crosses split-phase power supply system, which is characterized in that including：
Main circuit breaker, mobile transformer, adjusts second voltage amplitude less than first voltage amplitude and second voltage switch at arrester
Frequency is more than the first control device and motor of first voltage switching frequency；
The both ends of the main circuit breaker are connect with the primary side of contact net and the mobile transformer respectively, one end of the arrester
Ground connection, the other end are connect with the primary side of the main circuit breaker and the mobile transformer, the both ends point of the first control device
It is not connect with the secondary side of the mobile transformer and the motor；
The first voltage is when the main circuit breaker is closed, and the mobile transformer is inputted to the first control device
Voltage；
The second voltage is when the main circuit breaker disconnects, and the motor is by the first control device to described vehicle-mounted
The voltage of transformer input.
2. system according to claim 1, which is characterized in that the first control device includes：Draw four-quadrant and use
In the traction invertor for the amplitude for controlling the second voltage；
The both ends of the traction four-quadrant are connect with the secondary side of the mobile transformer and the traction invertor respectively, described to lead
Draw inverter to connect with the motor.
3. system according to claim 2, which is characterized in that the traction four-quadrant includes：For controlling described second
The switching device of voltage switching frequency.
4. system according to claim 2, which is characterized in that between the traction four-quadrant and the traction invertor simultaneously
Join filter capacitor.
5. system according to claim 1, which is characterized in that further include：For controlling the voltage for being input to assistant load
The both ends of second control device, the second control device are connect with the secondary side of the mobile transformer and assistant load respectively.
6. system according to claim 5, which is characterized in that the second control device includes auxiliary four-quadrant and auxiliary
Inverter；
The both ends of the auxiliary four-quadrant are connect with the secondary side of the mobile transformer and the subordinate inverter respectively, described auxiliary
Inverter is helped to be connect with the assistant load.
7. system according to claim 6, which is characterized in that between the auxiliary four-quadrant and the subordinate inverter simultaneously
Join filter capacitor.
8. system according to claim 1, which is characterized in that further include：Control be input to row for load voltage the
The both ends of three control devices, the third control device are connected with the secondary side of the mobile transformer and row for load respectively.
9. system according to claim 8, which is characterized in that the third control device includes row for four-quadrant and filtering
Capacitance, the row are connect for four-quadrant with the secondary side of the mobile transformer, the filter capacitor with the row for four-quadrant and
The row are in parallel for load.
10. a kind of railroad train, which is characterized in that including vehicle-mounted electrical equipment and such as claim 1-9 any one of them iron
Road train crosses split-phase power supply system, and the vehicle-mounted electrical equipment is crossed split-phase power supply system with the railroad train and is electrically connected, described
Railroad train is crossed split-phase power supply system and is used for the vehicle-mounted power supply for electrical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698762.9U CN207790398U (en) | 2017-12-08 | 2017-12-08 | Railroad train crosses split-phase power supply system and railroad train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698762.9U CN207790398U (en) | 2017-12-08 | 2017-12-08 | Railroad train crosses split-phase power supply system and railroad train |
Publications (1)
| Publication Number | Publication Date |
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| CN207790398U true CN207790398U (en) | 2018-08-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109716A1 (en) * | 2017-12-08 | 2019-06-13 | 中车大连电力牵引研发中心有限公司 | Power supply system for train traversing phase break, and train |
| WO2021072929A1 (en) * | 2019-10-17 | 2021-04-22 | 株洲中车时代电气股份有限公司 | Train neutral zone passing control method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109716A1 (en) * | 2017-12-08 | 2019-06-13 | 中车大连电力牵引研发中心有限公司 | Power supply system for train traversing phase break, and train |
| WO2021072929A1 (en) * | 2019-10-17 | 2021-04-22 | 株洲中车时代电气股份有限公司 | Train neutral zone passing control method and system |
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