CN105501069B - Double-standard current collecting system and method - Google Patents
Double-standard current collecting system and method Download PDFInfo
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- CN105501069B CN105501069B CN201510881006.9A CN201510881006A CN105501069B CN 105501069 B CN105501069 B CN 105501069B CN 201510881006 A CN201510881006 A CN 201510881006A CN 105501069 B CN105501069 B CN 105501069B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L9/00—Electric propulsion with power supply external to the vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The present invention provides a kind of double-standard current collecting system and method, including：Alternating current-direct current pantograph,Combined-voltage transformer,AC-DC conversion switch,DC circuit,Alternating current circuit and switch control unit,The input of combined-voltage transformer is connected with the output end of alternating current-direct current pantograph,The first end of AC-DC conversion switch is connected with the output end of alternating current-direct current pantograph,The input of second end and DC circuit is connected or is connected with the input of alternating current circuit,First output end of combined-voltage transformer is grounded by first line unit,Second output end is grounded by the second line unit,The first input end of first output end and switch control unit connects,Second input of the second output end and switch control unit connects,First output end of switch control unit passes through tertiary circuit unit and the three-terminal link of AC-DC conversion switch,Second output end is connected by the 4th end of the 4th line unit and AC-DC conversion switch,So as to,Improve the operational efficiency of locomotive.
Description
Technical field
The present invention relates to electrical technology, more particularly to a kind of double-standard current collecting system and method.
Background technology
With expanding economy and the quickening of urbanization process, China's electric railway, which is built, increasingly focuses on networking effect
Benefit.Electric propulsion formula technology of track traffic with its it is efficient, quick and environmentally friendly the characteristics of be used widely, form out of city to
It is intercity, arrive underground-ground-overhead combined polynary networked system again.In the urban rail transit vehicles of underground operation, example
Such as, subway, its tractive power supply system use 1500V direct current；The railway electric locomotive run on the ground, for example, high ferro, its
Tractive power supply system uses 25kV, 50Hz alternating current.In order to realize that same locomotive can run and can on the ground on ground
Lower operation on locomotive, it is necessary to install double-standard current collecting system.
In the prior art, double-standard is provided with two sets of current collecting systems by stream locomotive, is each pacified in two sets of current collecting systems
Equipped with pantograph, one of pantograph be used for by stream 1500V direct current, another pantograph be used for by stream 25kV,
50Hz alternating current.When needing to be flowed, the pantograph rise matched with tractive power supply system flowed.
But in aforesaid way, when locomotive enters another tractive power supply system from a tractive power supply system, need
Speed is reduced to complete the switching of pantograph, reduces the operational efficiency of locomotive.
The content of the invention
The present invention provides a kind of double-standard current collecting system and method, to improve the operational efficiency of locomotive.
The present invention provides a kind of double-standard current collecting system, including：
Alternating current-direct current pantograph, combined-voltage transformer, AC-DC conversion switch, DC circuit, alternating current circuit and cut
Change control unit；
The input of the combined-voltage transformer is connected with the output end of the alternating current-direct current pantograph；
The first end of the AC-DC conversion switch is connected with the output end of the alternating current-direct current pantograph, and the alternating current-direct current turns
The second end for changing switch is connected with the input of the DC circuit or is connected with the input of the alternating current circuit；
First output end of the combined-voltage transformer is grounded by first line unit, and the combined-voltage is mutual
First output end of sensor is connected with the first input end of the switch control unit；The second of the combined-voltage transformer
Output end is grounded by the second line unit, the second output end and the switch control unit of the combined-voltage transformer
The second input connection；First output end of the switch control unit passes through tertiary circuit unit and the AC-DC conversion
The three-terminal link of switch, the second output end of the switch control unit pass through the 4th line unit and the AC-DC conversion
The 4th end connection of switch；Wherein, the first input end of the switch control unit is corresponding with the first output end, the second input
Corresponding with the second output end, when the first line unit turns on, the tertiary circuit unit is also switched on；When second line
During the unit conducting of road, the 4th line unit is also switched on；
The output end of the output end of the DC circuit and the alternating current circuit is connected with traction convertor；
The switch control unit, the alternating current-direct current pantograph is sensed for detecting the combined-voltage transformer and is connect
What is received is alternating current or direct current, and controls the second end of the AC-DC conversion switch and the direct current according to testing result
The input connection of circuit is connected with the input of the alternating current circuit, to carry out direct current supply to the traction convertor
Or Alternating Current Power Supply.
Further, the first line unit includes：The normally closed feedback contact and AC regeneration of DC feedback relay
Relay；
First output end of the combined-voltage transformer and the normally closed feedback contact of the DC feedback relay
First end connects, the second end of the normally closed feedback contact of the DC feedback relay and the first of the AC regeneration relay
End connection, the second end ground connection of the AC regeneration relay；
Second line unit includes：The normally closed feedback contact and DC feedback relay of AC regeneration relay；
Second output end of the combined-voltage transformer and the normally closed feedback contact of the AC regeneration relay
First end connects, the second end of the normally closed feedback contact of the AC regeneration relay and the first of the DC feedback relay
End connection, the second end ground connection of the DC feedback relay；
The tertiary circuit unit includes：The normally opened feedback contact of AC regeneration relay and the DC feedback relay
Normally closed feedback contact；
First output end of the switch control unit and the first of the normally opened feedback contact of the AC regeneration relay
End connection, the second end of the normally opened feedback contact of the AC regeneration relay and the normally closed feedback of the DC feedback relay
The first end connection of contact, the second end and the AC-DC conversion switch of the normally closed feedback contact of the DC feedback relay
Three-terminal link；
4th line unit includes：The normally opened feedback contact of DC feedback relay and the AC relay it is normal
Close feedback contact；
Second output end of the switch control unit and the first of the normally opened feedback contact of the DC feedback relay
End connection, the second end of the normally opened feedback contact of the DC feedback relay and the normally closed feedback of the AC regeneration relay
The first end connection of contact, the second end and the AC-DC conversion switch of the normally closed feedback contact of the AC regeneration relay
The 4th end connection.
Further, the DC circuit includes：High-speed circuit breaker, the first end of the high-speed circuit breaker are handed over directly with described
The second end connection of change-over switch is flowed, the second end of the high-speed circuit breaker is connected with the traction convertor.
Further, the DC circuit also includes：
Direct current arrester, the direct current arrester are connected with the second end of the AC-DC conversion switch.
Further, the alternating current circuit includes：
Vacuum circuit breaker, current transformer and main transformer, the first end of the vacuum circuit breaker turn with the alternating current-direct current
The second end connection of switch is changed, the second end of the vacuum circuit breaker is connected with the first end of the current transformer, the electricity
Second end of current transformer is connected with the first end of the main transformer, the second end and the traction current transformation of the main transformer
Device connects.
Further, the alternating current circuit also includes：
First alternating-current lightning arrestor, first alternating-current lightning arrestor are connected with the second end of the AC-DC conversion switch.
Further, the alternating current circuit also includes：
Second alternating-current lightning arrestor, second alternating-current lightning arrestor are connected with the second end of the vacuum circuit breaker.
The present invention also provides a kind of double-standard and is applied to the system described in any of the above-described, institute by stream method, methods described
The method of stating includes：
What the switch control unit detection combined-voltage transformer sensed the alternating current-direct current pantograph reception is to hand over
Stream electricity or direct current；
If testing result is alternating current for alternating current-direct current pantograph reception, described in the switch control unit control
Second end of AC-DC conversion switch is connected with the input of the alternating current circuit；
If testing result is direct current for alternating current-direct current pantograph reception, described in the switch control unit control
Second end of AC-DC conversion switch is connected with the input of the DC circuit.
Further, the switch control unit controls the second end of the AC-DC conversion switch and the alternating current circuit
Input connection after, in addition to：
The switch control unit controls the high-speed circuit breaker in the DC circuit to disconnect, and controls the alternating current
Vacuum circuit breaker closure in road.
Further, the switch control unit controls the second end of the AC-DC conversion switch and the DC circuit
Input connection after, in addition to：
The switch control unit controls the vacuum circuit breaker closure in the alternating current circuit, and controls the direct current
High-speed circuit breaker in road disconnects.
Double-standard current collecting system provided by the invention and method, by setting alternating current-direct current pantograph, combined-voltage mutual inductance
Device, AC-DC conversion switch, DC circuit, alternating current circuit and switch control unit, the input of combined-voltage transformer
It is connected with the output end of alternating current-direct current pantograph, the first end of AC-DC conversion switch is connected with the output end of alternating current-direct current pantograph,
Second end of AC-DC conversion switch and the input connection of DC circuit are connected, alterating and direct current with the input of alternating current circuit
First output end of pressure transformer is grounded by first line unit, and the first output end and the switching of combined-voltage transformer are controlled
The first input end connection of unit processed, the second output end of combined-voltage transformer are grounded by the second line unit, are handed over straight
Flow the second output end of voltage transformer and the second input of switch control unit connects, the first output of switch control unit
By the three-terminal link of tertiary circuit unit and AC-DC conversion switch, the second output end of switch control unit passes through the at end
4th end of four line units and AC-DC conversion switch connects, wherein, the first input end of switch control unit and first defeated
It is corresponding to go out end, the second input is corresponding with the second output end, and when first line unit turns on, tertiary circuit unit is also switched on；
When the second line unit turns on, the 4th line unit is also switched on, and the output end of DC circuit and the output end of alternating current circuit are equal
It is connected with traction convertor, switch control unit, the reception of alternating current-direct current pantograph is sensed for detecting combined-voltage transformer
Be alternating current or direct current, and the second end of AC-DC conversion switch and the input of DC circuit are controlled according to testing result
End connection is connected with the input of alternating current circuit, to carry out direct current supply or Alternating Current Power Supply to traction convertor, is handed over straight
Flow pantograph and obtain alternating current or direct current from contact net, what combined-voltage transformer sensing alternating current-direct current pantograph obtained is to hand over
Stream electricity or direct current, switch control unit detection according to testing result control AC-DC conversion switch the second end with it is corresponding
Circuit connects, and is powered for traction convertor, realizes being flowed for double-standard, when standard switching is powered, due to making
With same alternating current-direct current pantograph, it is not necessary to reduce locomotive speed, improve the operational efficiency of locomotive.Simultaneously as control electricity
The set-up mode on road, system reliability are high.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the high-tension circuit block diagram of double-standard current collecting system embodiment one provided by the invention；
Fig. 2 is the control circuit block diagram of double-standard current collecting system embodiment one provided by the invention；
Fig. 3 is the high-tension circuit block diagram of double-standard current collecting system embodiment two provided by the invention；
Fig. 4 is the control circuit block diagram of double-standard current collecting system embodiment two provided by the invention；
Fig. 5 is a kind of high-tension circuit connection figure of implementation in the embodiment of the present invention two；
Fig. 6 is schematic flow sheet of the double-standard provided by the invention by stream embodiment of the method.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " " in description and claims of this specification and above-mentioned accompanying drawing
The (if present)s such as four " are for distinguishing similar object, without for describing specific order or precedence.It should manage
The data that solution so uses can exchange in the appropriate case, so as to embodiments of the invention described herein for example can with except
Order beyond those for illustrating or describing herein is implemented.In addition, term " comprising " and " having " and theirs is any
Deformation, it is intended that cover it is non-exclusive include, for example, containing the process of series of steps or device, method, system, product
Or equipment is not necessarily limited to those steps or the device clearly listed, but may include not list clearly or for these mistakes
The intrinsic other steps of journey, method, product or equipment or device.
Technical scheme is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and may be repeated no more for same or analogous concept or process in some embodiments.
Fig. 1 is the high-tension circuit block diagram of double-standard current collecting system embodiment one provided by the invention.Fig. 2 provides for the present invention
Double-standard current collecting system embodiment one control circuit block diagram.Referring to Fig. 1 and Fig. 2, double systems of the present embodiment offer
Formula current collecting system includes：
Alternating current-direct current pantograph 11, combined-voltage transformer 14, AC-DC conversion switch 12, DC circuit 13, alternating current
Road 15 and switch control unit 17, the input of combined-voltage transformer 14 connect with the output end of alternating current-direct current pantograph 11
Connecing, the first end of AC-DC conversion switch 12 is connected with the output end of alternating current-direct current pantograph 11, and the of AC-DC conversion switch 12
Two ends are connected with the input of DC circuit 13 or are connected with the input of alternating current circuit 15.The of combined-voltage transformer 14
One output end is grounded by first line unit 21, the first output end and the switch control unit 17 of combined-voltage transformer 14
First input end connection.Second output end of combined-voltage transformer 14 is grounded by the second line unit 22, alternating current-direct current
Second output end of voltage transformer 14 is connected with the second input of switch control unit 17.The first of switch control unit 17
Output end is defeated by tertiary circuit unit 23 and the three-terminal link of AC-DC conversion switch 12, the second of switch control unit 17
Go out end to be connected with the 4th end of AC-DC conversion switch 12 by the 4th line unit 24.
Wherein, the first input end of switch control unit 17 is corresponding with the first output end, the second input and the second output
End is corresponding.When first line unit 21 turns on, tertiary circuit unit 23 is also switched on；When the second line unit 22 turns on, the
Four line units 24 are also switched on.
The output end of DC circuit 13 and the output end of alternating current circuit 15 are connected with traction convertor 16.Switching control list
Member 17 is used to detecting that combined-voltage transformer 14 to sense the reception of alternating current-direct current pantograph 11 is alternating current or direct current, and
According to testing result control AC-DC conversion switch 12 the second end and DC circuit input connection or with alternating current circuit
Input connects, to carry out direct current supply or Alternating Current Power Supply to traction convertor.
Specifically, the double-standard current collecting system that the present embodiment provides is divided into high-tension circuit part and control circuit part.It is high
Volt circuit part is used for after contact net receives electric energy, according to the control result of control circuit, passes through DC circuit or friendship
Current circuit supplies the electric energy obtained from contact net to traction convertor, so that vehicle is run.
In the double-standard current collecting system that the present embodiment provides, alternating current-direct current pantograph 11 is used to obtain electric energy from contact net.This
In electric energy can be that alternating current can also be direct current, alternating current can be the alternating current that amplitude is 25kV, frequency is 50Hz,
Direct current can be the direct current that amplitude is 1500V.The parameter of specific alternating current and direct current can be according to locomotive in practice
Requirement characteristic determine that the present embodiment is without limitation.
The course of work for the double-standard current collecting system that the present embodiment provides is as follows：
After alternating current-direct current pantograph 11 gets electric energy, output end of the combined-voltage transformer 14 from alternating current-direct current pantograph 11
Electric energy is obtained, and sense the reception of alternating current-direct current pantograph 11 is alternating current or direct current.If combined-voltage transformer 14
Sense the reception of alternating current-direct current pantograph 11 is alternating current, and the first output end of combined-voltage transformer 14 exports low pressure telecommunications
Number, for example, 110V electric signal, first line unit 21 turns on, meanwhile, the first output end of combined-voltage transformer 14 to
The first input end input low pressure electric signal of switch control unit 17, due to the first input end of switch control unit 17 and first
Output end is corresponding, and switch control unit 17 receives low pressure electric signal from first input end and then exports low pressure telecommunications from the first output end
Number, when being turned on due to first line unit 21, tertiary circuit unit 23 is also switched on, and the first output end of switch control unit 17 is led to
The three-terminal link of tertiary circuit unit 23 and AC-DC conversion switch 12 is crossed, then switch control unit 17 is opened to AC-DC conversion
The path conducting at 12 the 3rd end is closed, switch control unit 17 controls the second end and the alternating current circuit 15 of AC-DC conversion switch 12
Input connection.Now, output end of the alternating current-direct current pantograph 11 from the electric energy that contact net obtains by alternating current-direct current pantograph 11
The first end of AC-DC conversion switch 12 is inputted, then in the second end input AC circuit 15 for passing through AC-DC conversion switch 12,
Alternating current circuit 15 exports electric energy to traction convertor 16.Traction convertor 16 drives vehicle operation.
In the running of locomotive, if combined-voltage transformer 14 senses the electricity of the reception of alternating current-direct current pantograph 11
Direct current, the second output end output low pressure electric signal of combined-voltage transformer 14 can be become, the second line unit 22 is led
It is logical, meanwhile, the second output end of combined-voltage transformer 14 inputs low tension to the second input of switch control unit 17
Signal, because the second input of switch control unit 17 is corresponding with the second output end, switch control unit 17 inputs from second
End is received low pressure electric signal and then exports low pressure electric signal, when being turned on due to the second line unit 22, the 4th line from the second output end
Road unit 34 is also switched on, and the second output end of switch control unit 17 passes through the 4th line unit 24 and AC-DC conversion switch 12
The 4th end connection, then switch control unit 17 to AC-DC conversion switch 12 the 4th end path conducting, switching control list
Member 17 controls the second end of AC-DC conversion switch 12 to be connected with the input of DC circuit 13.Now, alternating current-direct current pantograph 11
The first end of AC-DC conversion switch 12 is inputted from the electric energy that contact net obtains by the output end of alternating current-direct current pantograph 11, then is led to
Cross in the second end input direct-current circuit 13 of AC-DC conversion switch 12, DC circuit 13 exports electric energy to traction convertor
16。
It should be noted that it will be appreciated by persons skilled in the art that in another implementation, work as alternating current-direct current
What voltage transformer 14 sensed the reception of alternating current-direct current pantograph 11 is the of alternating current or combined-voltage transformer 14
Two output ends export low pressure electric signal, and the second line unit 22 turns on.Likewise, when combined-voltage transformer 14 senses friendship
What direct current pantograph 11 received is the first output end output low pressure telecommunications of direct current or combined-voltage transformer 14
Number, first line unit 21 turns on.As long as the first output end of combined-voltage transformer 14, the second output end and sensing
Alternating current, direct current correspond.
In the double-standard current collecting system that this implementation provides, sensed in combined-voltage transformer 14 as alternating current or direct current
When electric, for example, combined-voltage transformer 14 senses alternating current, and first line unit 21 turns on, and combined-voltage is mutual
Sensor 14 outputs signal to switch control unit 17, and when first line unit 21 turns on, tertiary circuit unit 23 just turns on, and cuts
Control unit 17 is changed when receiving the input of combined-voltage transformer 14, just meeting output signal, could pass through tertiary circuit
Unit 23 controls the second end of AC-DC conversion switch 12 to be connected with alternating current circuit 15.Output signal is missed in switch control unit 17
When, for example, the first output end of switch control unit 17 misses output signal, due to now first line unit 21 simultaneously
It is not turned on, then tertiary circuit unit 23 does not turn on yet, and AC-DC conversion switch 12 can't carry out switching motion, this raising
The reliability of system.
The double-standard current collecting system that the present embodiment provides, by setting alternating current-direct current pantograph, combined-voltage transformer, handing over
Direct current change-over switch, DC circuit, alternating current circuit and switch control unit, the input of combined-voltage transformer are straight with handing over
The output end connection of pantograph is flowed, the first end of AC-DC conversion switch is connected with the output end of alternating current-direct current pantograph, alternating current-direct current
Second end of change-over switch and the input connection of DC circuit are connected, combined-voltage mutual inductance with the input of alternating current circuit
First output end of device is grounded by first line unit, the first output end and switch control unit of combined-voltage transformer
First input end connection, the second output end of combined-voltage transformer is grounded by the second line unit, combined-voltage
Second output end of transformer and the second input of switch control unit connect, and the first output end of switch control unit passes through
The three-terminal link of tertiary circuit unit and AC-DC conversion switch, the second output end of switch control unit pass through the 4th circuit
4th end of unit and AC-DC conversion switch connects, wherein, the first input end of switch control unit and the first output end pair
Should, the second input is corresponding with the second output end, and when first line unit turns on, tertiary circuit unit is also switched on；When second
When line unit turns on, the 4th line unit is also switched on, the output end of DC circuit and the output end of alternating current circuit with traction
Current transformer connect, switch control unit, for detect combined-voltage transformer sense alternating current-direct current pantograph reception be hand over
Stream electricity or direct current, and control the second end of AC-DC conversion switch and the input of DC circuit to connect according to testing result
Or be connected with the input of alternating current circuit, to carry out direct current supply or Alternating Current Power Supply to traction convertor, alternating current-direct current is by electricity
Bow obtains alternating current or direct current from contact net, what combined-voltage transformer sensing alternating current-direct current pantograph obtained be alternating current also
It is direct current, switch control unit detection controls the second end of AC-DC conversion switch to connect with corresponding circuit according to testing result
Connect, powered for traction convertor, realize being flowed for double-standard, when standard switching is powered, due to using same
Individual alternating current-direct current pantograph, it is not necessary to reduce locomotive speed, improve the operational efficiency of locomotive.Simultaneously as control circuit is set
Mode is put, system reliability is high.
Fig. 3 is the high-tension circuit block diagram of double-standard current collecting system embodiment two provided by the invention.Fig. 4 provides for the present invention
Double-standard current collecting system embodiment two control circuit block diagram.The double-standard current collecting system that the present embodiment provides is in above-mentioned implementation
On the basis of example, as shown in Figure 4 and Figure 5, DC circuit 13 includes：
High-speed circuit breaker 131, the first end of high-speed circuit breaker 131 are connected with the second end of AC-DC conversion switch 12, high
Second end of fast breaker 131 is connected with traction convertor 16.
DC circuit 13 also includes：Direct current arrester 132, direct current arrester 132 and the second of AC-DC conversion switch 12
End connection.
Alternating current circuit 15 includes：Vacuum circuit breaker 151, current transformer 152 and main transformer 153, vacuum circuit breaker 151
First end be connected with the second end of AC-DC conversion switch 12, the second end of vacuum circuit breaker 151 and current transformer 152
First end is connected, and the second end of current transformer 152 is connected with the first end of main transformer 153, the second end of main transformer 153
It is connected with traction convertor 16.Alternating current circuit 15 also includes：First alternating-current lightning arrestor 154, the first alternating-current lightning arrestor 154 are straight with handing over
Flow the second end connection of change-over switch 12.Alternating current circuit 15 also includes：Second alternating-current lightning arrestor 155, the second alternating-current lightning arrestor 155
It is connected with the second end of vacuum circuit breaker 151.
First line unit includes：Normally closed feedback contact K101 and AC regeneration the relay K09 of DC feedback relay,
First output end of combined-voltage transformer 14 is connected with the normally closed feedback contact K101 of DC feedback relay first end,
The normally closed feedback contact K101 of DC feedback relay the second end is connected with AC regeneration relay K09 first end, exchange
Feddback relay device K09 the second end ground connection.
Second line unit includes：Normally closed feedback contact K091 and DC feedback the relay K10 of AC regeneration relay.
Second output end of combined-voltage transformer 14 is connected with the normally closed feedback contact K091 of AC regeneration relay first end,
The normally closed feedback contact K091 of AC regeneration relay the second end is connected with DC feedback relay K10 first end, direct current
Feddback relay device K10 the second end ground connection.
Tertiary circuit unit includes：Normally opened the feedback contact K092's and DC feedback relay of AC regeneration relay is normal
Close feedback contact K101.First output end of switch control unit 17 is with the normally opened feedback contact K092's of AC regeneration relay
First end connects, the normally opened feedback contact K092 of AC regeneration relay the second end and the normally closed feedback of DC feedback relay
Contact K101 first end connection, the normally closed feedback contact K101 of DC feedback relay the second end and AC-DC conversion switch
12 three-terminal link.
4th line unit includes：Normally opened the feedback contact K102's and AC relay of DC feedback relay is normal
Close feedback contact K091.Second output end of switch control unit 17 is with the normally opened feedback contact K102's of DC feedback relay
First end connects, the normally opened feedback contact K102 of DC feedback relay the second end and the normally closed feedback of AC regeneration relay
Contact K091 first end connection, the normally closed feedback contact K091 of AC regeneration relay the second end and AC-DC conversion switch
12 the 4th end connection.
Specifically, in the double-standard current collecting system that the present embodiment provides, AC-DC conversion is controlled in switch control unit 17
When second end of switch 12 is connected with the input of alternating current circuit 15, the vacuum circuit breaker 151 in alternating current circuit 15 can be by cutting
The control closure of control unit 17 is changed, can also be controlled by staff.After vacuum circuit breaker 151 closes, AC energy
Traction convertor 16 is supplied to by current transformer 152 and main transformer 153.Alternating current-direct current is controlled to turn in switch control unit 17
The second end of switch 12 is changed when being connected with the input of DC circuit 13, the high-speed circuit breaker 131 in DC circuit 13 can be by
The control closure of switch control unit 17, can also be controlled closure by staff.After high-speed circuit breaker 131 closes, directly
Stream electric energy is supplied to traction convertor 16.Alternating current circuit 15 exchanges with the first alternating-current lightning arrestor 154 in DC circuit 13, second
Arrester 155 and direct current arrester 132 can improve the security of double-standard current collecting system.
It should be noted that relay includes normally opened feedback contact, normally closed feedback contact and coil：Normally opened feedback contact and
Normally closed feedback contact switchs its essence is one kind；When relay coil not it is electric when, its normally opened feedback contact disconnects, normally closed
Feedback contact closes；When the coil of relay obtains electric, its normally opened feedback contact closure, normally closed feedback contact disconnects.In this reality
Apply in example, the coil of AC regeneration relay is referred to AC regeneration relay K09, then when AC regeneration relay K09 does not have
When obtaining electric, the normally closed feedback contact K091 closures of AC regeneration relay, the normally opened feedback contact K092 of AC regeneration relay
Disconnect；When AC regeneration relay K09 obtains electric, the normally closed feedback contact K091 of AC regeneration relay disconnects, AC regeneration
The normally opened feedback contact K092 closures of relay.In the present embodiment, DC feedback relay is referred to DC feedback relay K10
Coil, then when DC feedback relay K10 not it is electric when, DC feedback relay normally closed feedback contact K101 closure,
The normally opened feedback contact K102 of DC feedback relay disconnects；When DC feedback relay K10 obtains electric, DC feedback relay
Normally closed feedback contact K101 disconnect, the normally opened feedback contact K102 of DC feedback relay closure.
The course of work of the control circuit for the double-standard current collecting system that the present embodiment provides is as follows：
After alternating current-direct current pantograph 11 gets electric energy, output end of the combined-voltage transformer 14 from alternating current-direct current pantograph 11
Electric energy is obtained, and sense the reception of alternating current-direct current pantograph 11 is alternating current or direct current.If combined-voltage transformer 14
Sense the reception of alternating current-direct current pantograph 11 is alternating current, and the first output end of combined-voltage transformer 14 exports low pressure telecommunications
Number, at the same AC regeneration relay K09 obtain it is electric, DC feedback relay K10 must not electricity, K101 closures, K102 disconnects, and K091 breaks
Open, K092 closures, the first output end of combined-voltage transformer 14 exports low pressure electric signal to the of switch control unit 17
One input, the first output end output low pressure electric signal of switch control unit 17, because K092 and K101 is closure state,
Then switch control unit 17 turns on to the path at the 3rd end of AC-DC conversion switch 12, and switch control unit 17 controls alternating current-direct current
Second end of change-over switch is connected with the first end of the vacuum circuit breaker 151 in alternating current circuit.Now, alternating current-direct current pantograph 11 from
The electric energy that contact net obtains is inputted to the first end of AC-DC conversion switch 12 by the output end of alternating current-direct current pantograph 11, then is led to
Cross in the second end input vacuum circuit breaker 151 of AC-DC conversion switch 12, then by current transformer 152 and main transformer
153 export electric energy to traction convertor 16.
If the electric energy that combined-voltage transformer 14 senses the reception of alternating current-direct current pantograph 11 becomes direct current, hand over straight
The second output end output low pressure electric signal of voltage transformer 14 is flowed, meanwhile, DC feedback relay K10 obtains electric, AC regeneration
Relay K09 must not be electric, and K091 closures, K092 disconnects, and K101 disconnects, K102 closures, and the second of combined-voltage transformer 14
It is low to the second input of switch control unit 17, the second output end of switch control unit 17 that output end exports low pressure electric signal
Piezoelectric signal, because K102 and K091 is closure state, then switch control unit 17 arrives the 4th of AC-DC conversion switch 12
The path conducting at end, switch control unit 17 control the second end of AC-DC conversion switch and the high-speed circuit breaker in DC circuit
131 first end connection.Now, output of the alternating current-direct current pantograph 11 from the electric energy that contact net obtains by alternating current-direct current pantograph 11
End is inputted to the first end of AC-DC conversion switch 12, then passes through the second end input high-speed circuit breaker of AC-DC conversion switch 12
In 131, electric energy is exported to traction convertor 16 by high-speed circuit breaker 131.
In the control circuit of the present embodiment, due to being set on hardware：AC regeneration relay K09 and DC feedback relay
K10, the first output end of switch control unit 17 by the normally opened feedback contact K092 of AC regeneration relay, DC feedback after
The normally closed feedback contact K101 of electrical equipment and the three-terminal link of AC-DC conversion switch 12, the second output of switch control unit 17
End is straight with handing over by the normally opened feedback contact K102 of DC feedback relay, the normally closed feedback contact K091 of AC regeneration relay
Flow the 4th end connection of change-over switch 12；The first output end output electric signal of combined-voltage transformer 14 is set on software extremely
The first input end of switch control unit 17, the second output end of combined-voltage transformer 14 export electric signal to switching control
Second input of unit 17, switch control unit 17 is according to the signal inputted from itself respective input, from corresponding output
End output electric signal.Only when the output end of switch control unit 17 has signal output and output end and AC-DC conversion switch 12
Respective end hardware path closure when, switch control unit 17 could control the second end of AC-DC conversion switch 12 with exchanging
The input of circuit or DC circuit connects.Compared to the system for only using software control or hardware controls, the present embodiment provides
Double-standard current collecting system reliability it is high.
Further, alternating current-direct current manual change-over switch can also be included in the double-standard current collecting system that the present embodiment provides
41st, manually operated DC relay K15, manually operated AC relay K14, K141 are K14 normally closed feedback contacts, and K142 is
K14 normally opened feedback contact, K151 are K15 normally closed feedback contacts, and K152 is K15 normally opened feedback contact.Breaker 42 exists
It is closure state under normal condition.Without using it is manually operated when, K141 and K151 are closure states.When alternating current-direct current turns manually
Change switch 41 get to exchange position when, K141 disconnect, K142 closure, K151 closure, K152 disconnect, control AC-DC conversion switch 12
The second end and alternating current circuit input connect.When alternating current-direct current manual change-over switch 41 gets to direct current position, it analyzes process
It is similar with said process, repeat no more.The setting of alternating current-direct current manual change-over switch is easy to debug vehicle.
Fig. 5 is a kind of high-tension circuit connection figure of implementation in the embodiment of the present invention two.Fig. 5 is corresponding with Fig. 2
A kind of concrete implementation mode.As shown in figure 5, in the double-standard current collecting system that this implementation provides, high-speed circuit breaker 60, electricity
Anti- device 61, reactor 62, braking resistor 63, main transformer 65, traction convertor 64 and traction electric machine 66 are located under car, alternating current-direct current
Pantograph 51, AC-DC conversion switch 52, combined-voltage transformer 53, arrester 54, direct current arrester 55, vacuum circuit breaker
56th, earthed switch 57, the second alternating-current lightning arrestor 58 and current transformer 59 are located at roof.Realize to the double-standard of locomotive
Flowed.
In the double-standard current collecting system that the present embodiment provides, by setting DC circuit to include high-speed circuit breaker, high quick-break
The first end of road device and the second end of AC-DC conversion switch are connected, and the second end of high-speed circuit breaker is connected with traction convertor,
DC circuit also includes：The second end connection of direct current arrester, direct current arrester and AC-DC conversion switch, alternating current circuit bag
Include：Vacuum circuit breaker, current transformer and main transformer, the first end of vacuum circuit breaker and the second end of AC-DC conversion switch
Connection, the second end of vacuum circuit breaker and the first end of current transformer connect, the second end of current transformer and main transformer
First end connection, the second end of main transformer is connected with traction convertor, and alternating current circuit also includes：First alternating-current lightning arrestor,
Second end of the first alternating-current lightning arrestor and AC-DC conversion switch connects, and alternating current circuit also includes：Second alternating-current lightning arrestor, second
Second end of alternating-current lightning arrestor and vacuum circuit breaker connects, and realizes being flowed for double-standard, improves the operational efficiency of locomotive,
And because there is provided the security that arrester improves double-standard current collecting system.AC regeneration relay and DC feedback relay
The setting of device improves the reliability of system.
Fig. 6 is schematic flow sheet of the double-standard provided by the invention by stream embodiment of the method.As shown in fig. 6, this implementation carries
The double-standard current collection mode of confession includes：
S601：What switch control unit detection combined-voltage transformer sensed the reception of alternating current-direct current pantograph is alternating current
Or direct current.
S602：If testing result is alternating current for the reception of alternating current-direct current pantograph, switch control unit controls alternating current-direct current
Second end of change-over switch and the input of alternating current circuit connect.
S603：If testing result is direct current for the reception of alternating current-direct current pantograph, switch control unit controls alternating current-direct current
Second end of change-over switch and the input of DC circuit connect.
Also include after S602：Switch control unit controls the high-speed circuit breaker in the DC circuit to disconnect, and
Control the vacuum circuit breaker closure in alternating current circuit.
Also include after S603：Vacuum circuit breaker closure in switch control unit control alternating current circuit, and control
High-speed circuit breaker in DC circuit disconnects.
The double-standard that this implementation provides can apply to any shown double-standard current collecting systems of Fig. 1-Fig. 5 by stream method
In embodiment.
The double-standard that the present embodiment provides is detected combined-voltage transformer by switch control unit and sensed by stream method
What is received to alternating current-direct current pantograph is alternating current or direct current, if testing result is alternating current-direct current pantograph, receive is exchange
The input connection of electricity, then the second end of switch control unit control AC-DC conversion switch and alternating current circuit, if testing result
What it is for the reception of alternating current-direct current pantograph is direct current, then the second end of switch control unit control AC-DC conversion switch and direct current
The input connection on road, realizes being flowed for double-standard, when standard switching is powered, due to being handed over directly using same
Flow pantograph, it is not necessary to reduce locomotive speed, improve the operational efficiency of locomotive.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
- A kind of 1. double-standard current collecting system, it is characterised in that including：Alternating current-direct current pantograph, combined-voltage transformer, AC-DC conversion switch, DC circuit, alternating current circuit and switching control Unit processed；The input of the combined-voltage transformer is connected with the output end of the alternating current-direct current pantograph；The first end of the AC-DC conversion switch is connected with the output end of the alternating current-direct current pantograph, and the AC-DC conversion is opened The second end closed is connected with the input of the DC circuit or is connected with the input of the alternating current circuit；First output end of the combined-voltage transformer is grounded by first line unit, the combined-voltage transformer The first output end be connected with the first input end of the switch control unit；Second output of the combined-voltage transformer End is grounded by the second line unit, and the of the second output end of the combined-voltage transformer and the switch control unit Two inputs connect；First output end of the switch control unit passes through tertiary circuit unit and the AC-DC conversion switch Three-terminal link, the second output end of the switch control unit passes through the 4th line unit and the AC-DC conversion switch The 4th end connection；Wherein, the first input end of the switch control unit is corresponding with the first output end, the second input and Two output ends are corresponding, and when the first line unit turns on, the tertiary circuit unit is also switched on；When the second circuit list During member conducting, the 4th line unit is also switched on；The output end of the output end of the DC circuit and the alternating current circuit is connected with traction convertor；The switch control unit, sense what the alternating current-direct current pantograph received for detecting the combined-voltage transformer It is alternating current or direct current, and the second end of the AC-DC conversion switch and the DC circuit is controlled according to testing result Input connection or be connected with the input of the alternating current circuit, so as to the traction convertor progress direct current supply or Alternating Current Power Supply；The first line unit includes：Normally closed feedback contact and the AC regeneration relay of DC feedback relay；First output end of the combined-voltage transformer and the first of the normally closed feedback contact of the DC feedback relay End connection, the second end of the normally closed feedback contact of the DC feedback relay and the first end of the AC regeneration relay connect Connect, the second end ground connection of the AC regeneration relay；Second line unit includes：The normally closed feedback contact and DC feedback relay of AC regeneration relay；Second output end of the combined-voltage transformer and the first of the normally closed feedback contact of the AC regeneration relay End connection, the second end of the normally closed feedback contact of the AC regeneration relay and the first end of the DC feedback relay connect Connect, the second end ground connection of the DC feedback relay；The tertiary circuit unit includes：The normally opened feedback contact of AC regeneration relay and the DC feedback relay it is normal Close feedback contact；First output end of the switch control unit and the first end of the normally opened feedback contact of the AC regeneration relay connect Connect, the second end of the normally opened feedback contact of the AC regeneration relay and the normally closed feedback contact of the DC feedback relay First end connection, the of the second end of the normally closed feedback contact of the DC feedback relay and the AC-DC conversion switch Three-terminal link；4th line unit includes：The normally opened feedback contact of DC feedback relay and the AC relay it is normally closed anti- Present contact；Second output end of the switch control unit and the first end of the normally opened feedback contact of the DC feedback relay connect Connect, the second end of the normally opened feedback contact of the DC feedback relay and the normally closed feedback contact of the AC regeneration relay First end connection, the of the second end of the normally closed feedback contact of the AC regeneration relay and the AC-DC conversion switch Four ends connect.
- 2. system according to claim 1, it is characterised in that the DC circuit includes：High-speed circuit breaker, the high speed The first end of breaker is connected with the second end of the AC-DC conversion switch, and the second end of the high-speed circuit breaker is led with described Draw current transformer connection.
- 3. system according to claim 2, it is characterised in that the DC circuit also includes：Direct current arrester, the direct current arrester are connected with the second end of the AC-DC conversion switch.
- 4. system according to claim 1, it is characterised in that the alternating current circuit includes：Vacuum circuit breaker, current transformer and main transformer, the first end of the vacuum circuit breaker are opened with the AC-DC conversion The the second end connection closed, the second end of the vacuum circuit breaker are connected with the first end of the current transformer, and the electric current is mutual Second end of sensor is connected with the first end of the main transformer, and the second end and the traction convertor of the main transformer connect Connect.
- 5. system according to claim 4, it is characterised in that the alternating current circuit also includes：First alternating-current lightning arrestor, first alternating-current lightning arrestor are connected with the second end of the AC-DC conversion switch.
- 6. system according to claim 5, it is characterised in that the alternating current circuit also includes：Second alternating-current lightning arrestor, second alternating-current lightning arrestor are connected with the second end of the vacuum circuit breaker.
- 7. a kind of double-standard is by stream method, it is characterised in that methods described is applied to according to any one of claims 1 to 6 System, methods described include：What the switch control unit detection combined-voltage transformer sensed the alternating current-direct current pantograph reception is alternating current Or direct current；If testing result is the alternating current-direct current pantograph, receive is alternating current, switch control unit control is described hand over it is straight Second end of stream change-over switch is connected with the input of the alternating current circuit；If testing result is the alternating current-direct current pantograph, receive is direct current, switch control unit control is described hand over it is straight Second end of stream change-over switch is connected with the input of the DC circuit.
- 8. according to the method for claim 7, it is characterised in that the switch control unit controls the AC-DC conversion to open After the second end closed is connected with the input of the alternating current circuit, in addition to：The switch control unit controls the high-speed circuit breaker in the DC circuit to disconnect, and controls in the alternating current circuit Vacuum circuit breaker closure.
- 9. according to the method for claim 7, it is characterised in that the switch control unit controls the AC-DC conversion to open After the second end closed is connected with the input of the DC circuit, in addition to：The switch control unit controls the vacuum circuit breaker closure in the alternating current circuit, and controls in the DC circuit High-speed circuit breaker disconnect.
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| CN109803848A (en) * | 2016-12-14 | 2019-05-24 | 中车株洲电力机车有限公司 | A kind of electric locomotive main circuit and electric locomotive |
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| CN107640034B (en) * | 2017-08-08 | 2020-02-21 | 中车大连机车车辆有限公司 | System and method for detecting voltage type of contact net of electric locomotive |
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| CN109720357B (en) * | 2017-10-26 | 2020-02-14 | 株洲中车时代电气股份有限公司 | High-voltage reconnection control system and method |
| CN107834525B (en) * | 2017-11-17 | 2019-09-27 | 中车株洲电力机车有限公司 | A kind of protection system and method for rail traffic multithread power supply system |
| CN109278768A (en) * | 2018-10-12 | 2019-01-29 | 株洲时代电子技术有限公司 | A kind of subway Operation Van |
| CN110525230A (en) * | 2019-09-06 | 2019-12-03 | 中车长春轨道客车股份有限公司 | Double-current system vehicle alternating current-direct current switches high-pressure system |
| CN110525275A (en) * | 2019-09-09 | 2019-12-03 | 中车株洲电力机车有限公司 | A kind of EMU alternating current-direct current circuit on side of overhead contact line and its control method |
| CN113690639B (en) * | 2020-05-19 | 2022-09-23 | 中车唐山机车车辆有限公司 | Rail train's grounding system and rail train |
| CN112885637B (en) * | 2021-01-13 | 2022-12-13 | 株洲中车时代电气股份有限公司 | Conversion drum type three-position switch device and control method and system thereof |
| CN113060005A (en) * | 2021-04-23 | 2021-07-02 | 重庆中车长客轨道车辆有限公司 | High-voltage device for double-flow rail transit vehicle |
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