CN207328441U - A kind of electric locomotive traction system - Google Patents
A kind of electric locomotive traction system Download PDFInfo
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- CN207328441U CN207328441U CN201721323511.2U CN201721323511U CN207328441U CN 207328441 U CN207328441 U CN 207328441U CN 201721323511 U CN201721323511 U CN 201721323511U CN 207328441 U CN207328441 U CN 207328441U
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- energy storage
- electric locomotive
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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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- 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
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Abstract
The utility model discloses a kind of electric locomotive traction system, including contact net, pantograph, tractive transformer, four-quadrant rectifier, intermediate dc unit, subordinate inverter, traction invertor and energy storage device, wherein contact net, pantograph, tractive transformer, four-quadrant rectifier, intermediate dc unit are sequentially connected, the output terminal of intermediate dc unit is connected by subordinate inverter with auxiliary circuit, and the output terminal of intermediate dc unit is also connected by traction invertor with traction electric machine；Energy storage device is connected by four-quadrant rectifier with intermediate dc unit.The utility model connects energy storage device and intermediate dc unit on the premise of independent DC/DC modules are not increased, realize the discharge and recharge to middle direct current component, energy storage device energy exports and is recycled when braking the function of braking energy when realizing traction, there is no any influence to the weight, cost and space of original power locomotive, improve the scope of application of electric locomotive.
Description
Technical field
The utility model belongs to electric locomotive technical field, more particularly to a kind of electric locomotive traction system.
Background technology
Electric locomotive is to provide the energy by the contact net of electrified railway power supply system, before driving wheel by traction motor
Into a kind of rail vehicle transportation equipment, trailer system is the core system of electric locomotive, is realized electrified railway power supply system
The electric energy that system provides is converted to the function of vehicle wheel rotation kinetic energy.Traditional electric locomotive traction system include contact net, pantograph,
Tractive transformer, pre-charging device, four-quadrant rectifier, intermediate dc unit, subordinate inverter and traction invertor, wherein connecing
Net-fault, pantograph, tractive transformer, pre-charging device can, four-quadrant rectifier, intermediate dc unit be sequentially connected, it is middle straight
The output terminal of stream unit is connected by subordinate inverter with auxiliary circuit, and the output terminal of intermediate dc unit is also by drawing inversion
Device is connected with traction electric machine.
Since traditional electric locomotive traction system needs to take electricity to run on contact net, and only contact net this
Road dynamical system, thus break down or in some no electric lines in supply line, electric locomotive can not be run completely, example
Such as, part factory connecting line, harbour railroad, also have handling circuit of dedicated container, long cut wood and the like money etc., at this time
Diesel locomotive and extra operation, dispatcher are needed to configure, operation grade and environmental-protecting performance are a greater impact.
The defects of in order to eliminate conventional electric power locomotive traction system, extend the use scope of conventional electric power locomotive, in the world
On there are solution be to increase standby internal combustion power bag and energy storage device, wherein combustion power bag on conventional electric power locomotive to lead to
Four-quadrant rectifier access intermediate dc unit power supply is crossed, during energy storage device is accessed by an extra increased DC/DC module
Between direct current component power, this electric locomotive traction system for adding combustion power bag and energy storage device, although can solve
Conventional electric power locomotive traction system power supply mode is single, power supply reliability is low, is not suitable for the defects of no electric line, still, by
In the extra increase DC/DC modules of its needs, thus the weight and cost of electric locomotive are added, and in existing electric locomotive space
Under limitation, existing on the installation site of original component in electric locomotive influences and restricts.
The content of the invention
In the existing electric locomotive traction system with energy storage device, energy storage device passes through an extra increased DC/DC mould
Block access intermediate dc unit power supply, extra increased DC/DC modules add the weight and cost of original power locomotive, to electric power
The installation site of original component, which exists, on locomotive influences and restricts.The purpose of this utility model is that for the above-mentioned prior art
Deficiency, there is provided a kind of electric locomotive traction system improved, using original four-quadrant rectifier in electric locomotive as cutting
Ripple element uses, and connects energy storage device and intermediate dc unit on the premise of independent DC/DC modules are not increased, and realizes
Discharge and recharge to middle direct current component, energy storage device energy exports and is recycled when braking the function of braking energy when realizing traction,
There is no any influence to the weight, cost and space of original power locomotive, improve the scope of application of electric locomotive.
In order to solve the above technical problems, technical solution is used by the utility model：
A kind of electric locomotive traction system, including contact net, pantograph, tractive transformer, four-quadrant rectifier, centre are directly
It is whole to flow unit, subordinate inverter, traction invertor and energy storage device, wherein contact net, pantograph, tractive transformer, four-quadrant
Stream device, intermediate dc unit are sequentially connected, and the output terminal of intermediate dc unit is connected by subordinate inverter with auxiliary circuit, in
Between the output terminal of direct current component be also connected by traction invertor with traction electric machine；It is structurally characterized in that energy storage device passes through four-quadrant
Limit rectifier is connected with intermediate dc unit.
By said structure, original four-quadrant rectifier in electric locomotive is used as copped wave element, is not being increased
Energy storage device and intermediate dc unit are connected on the premise of independent DC/DC modules, realizes and middle direct current component is filled
Electric discharge, does not have any influence to the weight, cost and space of original power locomotive, improves the scope of application of electric locomotive.
Further, pre-charging device is further included, tractive transformer and energy storage device pass sequentially through pre-charging device, four
Quadrant rectifier is connected with intermediate reflux unit.
Due to being additionally arranged pre-charging device, intermediate dc unit is burnt out due to charging suddenly when can prevent from starting, and is protected
Demonstrate,prove power supply reliability.
Further, train control unit, the control terminal of the four-quadrant rectifier and the control of traction invertor are further included
End processed is electrically connected with train control unit.
In train traction, train control unit controls four-quadrant rectifier as AC/DC modules（Contact net is powered）Or
DC/DC modules（Energy storage device is powered）Use, control traction invertor is used as DC/AC modules, realizes that energy exports.Arranging
When car is braked, train control unit controls four-quadrant rectifier as DC/AC modules（Contact net recovers energy）Or DC/DC modules
（Energy storage device recovers energy）Use, control traction invertor is used as AC/DC modules, realizes recycling braking energy.
Further, combustion power bag is further included, combustion power bag is attempted by the output of subordinate inverter with auxiliary circuit
End, the control terminal of subordinate inverter are electrically connected with train control unit.
Combustion power bag can be used as non-firm power, improve power supply reliability.When there is contact net power supply, Train Control list
Member control subordinate inverter is used as DC/AC modules, and intermediate dc unit is powered by subordinate inverter for auxiliary circuit, in
Between direct current component by traction invertor be traction electric machine power.In contactless net power supply, train control unit control auxiliary
Inverter is used as AC/DC modules, and combustion power bag is powered by subordinate inverter for intermediate dc unit, and traction electric machine leads to
Cross traction invertor and take electricity from middle direct current component.
Further, the overvoltage copped wave unit being connected with intermediate dc unit is further included.
Overvoltage copped wave unit is directly connected in parallel to intermediate dc unit, excessively electric for absorbing intermediate dc unit momentary spike
Pressure, to ensure the safety of IGBT power devices in circuit.
As a kind of preferred embodiment, the energy storage device is made of storage battery or super capacitor, or the energy storage device
Mixed and formed with super capacitor by storage battery.
Compared with prior art, the utility model makes original four-quadrant rectifier in electric locomotive as copped wave element
With energy storage device and intermediate dc unit are connected on the premise of independent DC/DC modules are not increased, realized to middle straight
The discharge and recharge of unit is flowed, energy storage device energy exports and the function of braking energy is recycled when braking when realizing traction, to original power
Weight, cost and the space of locomotive do not have any influence, improve the scope of application of electric locomotive.
Brief description of the drawings
Fig. 1 is one embodiment main circuit functional block diagram of the utility model.
Fig. 2 is pre-charging device schematic diagram.
Fig. 3 is intermediate dc unit schematic diagram.
Fig. 4 is overvoltage copped wave unit schematic diagram.
Wherein, 1 is contact net, and 2 be pantograph, and 3 be tractive transformer, and 4 be energy storage device, and 5 be pre-charging device, and 6 are
Four-quadrant rectifier, 7 be intermediate dc unit, and 8 be overvoltage copped wave unit, and 9 be subordinate inverter, and 10 be traction invertor,
11 be traction electric machine, and 12 be auxiliary circuit, and 13 be combustion power bag, and 14 be train control unit, and R1 is first resistor, R2
Two resistance, R3 are 3rd resistor, and K1 is the first normally open contactor contact, and K2 is the second normally open contactor contact, and C is support electricity
Hold, Q1 manages for the first IGBT, and Q2 manages for the 2nd IGBT.
Embodiment
As shown in Figure 1, an embodiment of the utility model includes contact net 1, pantograph 2, tractive transformer 3, four-quadrant
Rectifier 6, intermediate dc unit 7, subordinate inverter 9, traction invertor 10 and energy storage device 4, wherein contact net 1, pantograph
2nd, tractive transformer 3, four-quadrant rectifier 6, intermediate dc unit 7 are sequentially connected, and the output terminal of intermediate dc unit 7 passes through auxiliary
Inverter 9 is helped to be connected with auxiliary circuit 12, the output terminal of intermediate dc unit 7 also passes through traction invertor 10 and traction electric machine 11
It is connected；It is structurally characterized in that energy storage device 4 is connected by four-quadrant rectifier 6 with intermediate dc unit 7.
The utility model further includes pre-charging device 5, and tractive transformer 3 and energy storage device 4 pass sequentially through preliminary filling Denso
5, four-quadrant rectifier 6 is put with intermediate reflux unit to be connected.
The utility model further includes train control unit 14, the control terminal and traction invertor of the four-quadrant rectifier 6
10 control terminal is electrically connected with train control unit 14.
The utility model further includes combustion power bag 13, and combustion power bag 13 is attempted by subordinate inverter with auxiliary circuit 12
9 output terminal, the control terminal of subordinate inverter 9 are electrically connected with train control unit 14.
The utility model further includes the overvoltage copped wave unit 8 being connected with intermediate dc unit 7.
The energy storage device 4 is made of high density battery or super capacitor, or the energy storage device 4 by storage battery with
Super capacitor mixing composition.Combustion power bag 13 by diesel engine and generating set into.
As shown in Fig. 2, pre-charging device 5 includes the first normally open contactor contact K1（Pre-charge contactor）, it is second normally opened
Contacts of contactor K2（Main contactor）With first resistor R1（Pre-charge resistance）.First normally open contactor contact K1 and first resistor
R1 series connection and then entirety are in parallel with the second normally open contactor contact K2.
As shown in figure 3, the second resistance R2 that intermediate dc unit 7 includes and connects（Discharge resistance）With Support Capacitor C.
As shown in figure 4, overvoltage copped wave unit 8 includes 3rd resistor R3（Energy absorption resistance）, the first IGBT pipes Q1 and
2nd IGBT pipes Q2.
In the present embodiment, four-quadrant rectifier 6 includes eight IGBT (Insulated Gate Bipolar
Transistor, insulated gate bipolar transistor) power device, four-quadrant rectifier 6 is used for realization the conversion of AC and DC；
When locomotive work is in 1 condition of supplying power of contact net, four-quadrant rectifier 6 is in locomotive traction by 33 secondary side winding of tractive transformer
The AC rectification of output is delivered to intermediate dc unit 7 into direct current, during locomotive electric braking by intermediate dc unit 7 again
Raw braking energy is reverse into exchange electricity output and feeds back to contact net 1 to tractive transformer 3, then by pantograph 2, realizes regeneration system
The recycling of electrokinetic energy, achievees the purpose that green energy conservation；When locomotive work energizes operating mode in standby power system, four-quadrant rectification
Device 6 is worked in the form of DC chopped-wave, realizes the function of two-way DC/DC modules, when locomotive needs to climb or accelerates, four-quadrant
Electric energy in energy storage device 4 is exported the realtime power for intermediate dc unit 7, improving locomotive by limit rectifier 6, when locomotive is in
During damped condition, the regenerative electric energy in intermediate dc unit 7 is delivered to energy storage device 4 and stored by four-quadrant rectifier 6, real
Show the recycling of locomotive brake energy and recycle.
In the present embodiment, traction invertor 10 by the conversion of ac/dc electric energy by the electricity in intermediate dc unit 7
Can inversion be voltage and the controllable alternating current of frequency, driving traction electric machine 11 operates, and power is provided for locomotive；When locomotive needs electricity
During braking, pass through the excitation con-trol of traction invertor 10 so that traction electric machine 11 is operated in generator mode, and locomotive kinetic energy is turned
Electric energy is turned to, is output in intermediate dc unit 7 and recycles, realize power saving function.
In the present embodiment, subordinate inverter 9 includes six IGBT power devices, by the electric energy in intermediate dc unit 7
Inversion is alternating current, is powered for auxiliary circuit 12；When locomotive work is in contactless 1 operating mode of net, subordinate inverter 9 is operated in three
Commutating phase pattern, is converted to direct current input intermediate dc unit 7, for vehicle by the AC energy that combustion power bag 13 exports
Traction uses.
When locomotive work is in 1 condition of supplying power of contact net, electrified railway power supply network is supplied by contact net 1 to locomotive
Can, electric current reaches tractive transformer 3 by pantograph 2, is then converted to by four-quadrant rectifier 6 straight among direct current feeding
Flow unit 7；Traction invertor 10 directly takes electricity from middle direct current component 7, powers for traction electric machine 11, traction locomotive operation；It is auxiliary
Help inverter 9 directly to take electricity from middle direct current component 7, power for the auxiliary circuit 12 of locomotive,
When contactless 1 operating mode of net of locomotive work, combustion power bag 13 supplies for subordinate inverter 9 and auxiliary circuit 12 at the same time
Electricity；At this time, subordinate inverter 9 is used as rectification module, and it is defeated that the AC energy that combustion power bag 13 exports is converted to direct current
Enter intermediate dc unit 7, the traction for vehicle uses；When locomotive needs to climb or accelerates, 6 conduct of four-quadrant rectifier
Copped wave element uses, and the electric energy in energy storage device 4 is exported to the realtime power for intermediate dc unit 7, improving locomotive；Work as locomotive
During in damped condition, locomotive kinetic energy is converted into electric energy by traction electric machine 11, and traction invertor 10 converts electrical energy into direct current and send
Enter intermediate dc unit 7, four-quadrant rectifier 6 is stored up the electrical energy transportation in intermediate dc unit 7 to energy storage device 4 by copped wave
Store away, realize the recycling of locomotive brake energy and recycle.
The embodiment of the utility model is described above in conjunction with attached drawing, but the utility model is not limited to
The embodiment stated, above-mentioned embodiment is only schematical, rather than limitation, this area it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the scope of protection of the utility model.
Claims (6)
1. a kind of electric locomotive traction system, including contact net（1）, pantograph（2）, tractive transformer（3）, four-quadrant rectifier
（6）, intermediate dc unit（7）, subordinate inverter（9）, traction invertor（10）And energy storage device（4）, wherein contact net（1）、
Pantograph（2）, tractive transformer（3）, four-quadrant rectifier（6）, intermediate dc unit（7）It is sequentially connected, intermediate dc unit
（7）Output terminal pass through subordinate inverter（9）With auxiliary circuit（12）It is connected, intermediate dc unit（7）Output terminal also pass through
Traction invertor（10）With traction electric machine（11）It is connected；It is characterized in that, energy storage device（4）Pass through four-quadrant rectifier（6）With
Intermediate dc unit（7）It is connected.
2. electric locomotive traction system as claimed in claim 1, it is characterised in that further include pre-charging device（5）, traction change
Depressor（3）And energy storage device（4）Pass sequentially through pre-charging device（5）, four-quadrant rectifier（6）With intermediate reflux unit phase
Even.
3. electric locomotive traction system as claimed in claim 1 or 2, it is characterised in that further include train control unit（14）,
The four-quadrant rectifier（6）Control terminal and traction invertor（10）Control terminal and train control unit（14）It is electrically connected
Connect.
4. electric locomotive traction system as claimed in claim 3, it is characterised in that further include combustion power bag（13）, internal combustion
Power bag（13）With auxiliary circuit（12）It is attempted by subordinate inverter（9）Output terminal, subordinate inverter（9）Control terminal and row
Car control unit（14）It is electrically connected.
5. electric locomotive traction system as claimed in claim 1 or 2, it is characterised in that further include and intermediate dc unit（7）
Connected overvoltage copped wave unit（8）.
6. electric locomotive traction system as claimed in claim 1 or 2, it is characterised in that the energy storage device（4）By storage battery
Or super capacitor composition, or the energy storage device（4）Mixed and formed with super capacitor by storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721323511.2U CN207328441U (en) | 2017-10-16 | 2017-10-16 | A kind of electric locomotive traction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721323511.2U CN207328441U (en) | 2017-10-16 | 2017-10-16 | A kind of electric locomotive traction system |
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| Publication Number | Publication Date |
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| CN207328441U true CN207328441U (en) | 2018-05-08 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859789A (en) * | 2018-05-16 | 2018-11-23 | 苏州中车轨道交通车辆有限公司 | A kind of current dead track system of contact net power supply tramcar |
| CN109050544A (en) * | 2018-09-27 | 2018-12-21 | 中车戚墅堰机车有限公司 | A kind of tramcar pure lithium battery driving trailer system |
| CN110103728A (en) * | 2019-05-10 | 2019-08-09 | 吉林大学青岛汽车研究院 | A kind of long-distance heavy haul transport system based on on-line direct current driving |
| CN111284506A (en) * | 2018-12-07 | 2020-06-16 | 株洲中车时代电气股份有限公司 | Traction transmission system of hybrid power locomotive |
| CN112721958A (en) * | 2021-01-15 | 2021-04-30 | 中车青岛四方机车车辆股份有限公司 | Traction auxiliary system and method suitable for power outage area and vehicle |
| CN112787304A (en) * | 2019-11-08 | 2021-05-11 | 株洲中车时代电气股份有限公司 | Pure solid-state short circuit protection device for ship direct-current power grid |
| CN112787314A (en) * | 2019-11-08 | 2021-05-11 | 上海中车汉格船舶与海洋工程有限公司 | Ship direct-current power grid short-circuit protection device |
| WO2021109456A1 (en) * | 2019-12-04 | 2021-06-10 | 中车株洲电力机车有限公司 | Electric locomotive and traction circuit thereof |
| CN113300579A (en) * | 2020-02-24 | 2021-08-24 | 株洲中车时代电气股份有限公司 | Multisource power supply equipment and system of engineering vehicle |
| CN113829887A (en) * | 2021-09-30 | 2021-12-24 | 株洲中车时代电气股份有限公司 | Energy storage type traction system, control method thereof and rail vehicle |
-
2017
- 2017-10-16 CN CN201721323511.2U patent/CN207328441U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859789A (en) * | 2018-05-16 | 2018-11-23 | 苏州中车轨道交通车辆有限公司 | A kind of current dead track system of contact net power supply tramcar |
| CN109050544A (en) * | 2018-09-27 | 2018-12-21 | 中车戚墅堰机车有限公司 | A kind of tramcar pure lithium battery driving trailer system |
| CN109050544B (en) * | 2018-09-27 | 2023-09-01 | 中车戚墅堰机车有限公司 | Pure lithium battery driven traction system for rail electric vehicle |
| CN111284506A (en) * | 2018-12-07 | 2020-06-16 | 株洲中车时代电气股份有限公司 | Traction transmission system of hybrid power locomotive |
| CN110103728A (en) * | 2019-05-10 | 2019-08-09 | 吉林大学青岛汽车研究院 | A kind of long-distance heavy haul transport system based on on-line direct current driving |
| CN112787304A (en) * | 2019-11-08 | 2021-05-11 | 株洲中车时代电气股份有限公司 | Pure solid-state short circuit protection device for ship direct-current power grid |
| CN112787314A (en) * | 2019-11-08 | 2021-05-11 | 上海中车汉格船舶与海洋工程有限公司 | Ship direct-current power grid short-circuit protection device |
| CN112787314B (en) * | 2019-11-08 | 2023-01-20 | 上海中车汉格船舶与海洋工程有限公司 | Ship direct-current power grid short-circuit protection device |
| WO2021109456A1 (en) * | 2019-12-04 | 2021-06-10 | 中车株洲电力机车有限公司 | Electric locomotive and traction circuit thereof |
| CN113300579A (en) * | 2020-02-24 | 2021-08-24 | 株洲中车时代电气股份有限公司 | Multisource power supply equipment and system of engineering vehicle |
| CN112721958A (en) * | 2021-01-15 | 2021-04-30 | 中车青岛四方机车车辆股份有限公司 | Traction auxiliary system and method suitable for power outage area and vehicle |
| CN113829887A (en) * | 2021-09-30 | 2021-12-24 | 株洲中车时代电气股份有限公司 | Energy storage type traction system, control method thereof and rail vehicle |
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