CN207328441U - A kind of electric locomotive traction system - Google Patents

A kind of electric locomotive traction system Download PDF

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Publication number
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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unit
traction
storage device
energy storage
electric locomotive
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CN201721323511.2U
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Inventor
廖洪涛
樊运新
王位
邢涛
邹焕青
马晓宁
颜宁
李先岭
刘斌
陈哲
刘华
付金
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CRRC Zhuzhou Locomotive Co Ltd
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CRRC Zhuzhou Locomotive Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00Transportation 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

A kind of electric locomotive traction system
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.
CN201721323511.2U 2017-10-16 2017-10-16 A kind of electric locomotive traction system Active CN207328441U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
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
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

Cited By (7)

* Cited by examiner, † Cited by third party
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
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
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
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

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