CN103129564A - Electric locomotive traction system - Google Patents
Electric locomotive traction system Download PDFInfo
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- CN103129564A CN103129564A CN2011103881746A CN201110388174A CN103129564A CN 103129564 A CN103129564 A CN 103129564A CN 2011103881746 A CN2011103881746 A CN 2011103881746A CN 201110388174 A CN201110388174 A CN 201110388174A CN 103129564 A CN103129564 A CN 103129564A
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention provides an electric locomotive traction system. The electric locomotive traction system comprises two traction current conversion cabinets, and each traction current conversion cabinet is provided with a set of traction converter. Each traction converter comprises a rectifier circuit, an intermediate direct current transmission circuit and an inverter circuit, wherein the rectifier circuit, the intermediate direct current transmission circuit and the inverter circuit are in electric connection sequentially. The rectifier circuit comprises two secondary rectifier circuits connected in parallel, the inverter circuit comprises three secondary inverter circuits connected in parallel, and output ends of the secondary inverter circuits are respectively connected with an asynchronous traction motor. The electric locomotive traction system is compact in structure and low in cost.
Description
Technical field
The present invention relates to the electric locomotive traction technology, relate in particular to a kind of high-power AC transmission power car traction system.
Background technology
The AC Drive traction technique is the traction technique that generally uses in present electric locomotive, it is to utilize alternating current to drive motor operation on locomotive, wherein, the electric locomotive traction system is mainly after the High Level AC Voltage that electrical network transmits is passed through transformation, rectification and inversion, for electrical motor provides AC drive voltage.
Fig. 1 is the structural representation of existing AC transmission electric power locomotive traction system.As shown in Figure 1, existing electric locomotive traction system power circuit comprises that 6 overlap independently traction convertor 10, every cover traction convertor 10 is comprised of 1 four-quadrant rectifier 101,1 intermediate dc transmission circuit 102 and 1 three-phase inverter 103, and every cover traction convertor 10 connects an asynchronous traction motor 20; Simultaneously, the electric locomotive traction system disposes 3 traction current transformation cabinets 30 altogether, is provided with two cover traction convertors 10 in each traction current transformation cabinet 30; Have 1 former limit winding and 6 secondary windings with the matching used traction transformer 40 of this traction system, so as for 6 the cover traction convertors 10 input voltage is provided; In addition, be used on locomotive other consumers to provide the AuCT of power supply to be arranged on separately (not shown) in an auxiliary converter cabinet.Can find out, in existing traction system, every cover traction convertor arranges separately, complex structure takes up room large, and cost is higher, and every cover traction convertor all needs to be equipped with independent controller, also is unfavorable for the control of traction system, and the conformability of the electric property of traction system is relatively poor; AuCT is arranged on separately in auxiliary converter cabinet, can take larger space, and structure takes up room greatly; Simultaneously, in the traction transformer that is used in conjunction with this system, 6 secondary windings need to be set, make the traction transformer complex structure, cost is high.
To sum up, in existing AC transmission electric power locomotive traction system, connect all independent complete settings of traction convertor of asynchronous traction motor, each traction convertor all needs to prepare a controller, whole AC transmission electric power locomotive traction system need to configure 3 traction current transformation cabinets, in traction system, the integrated level of circuit is low, huge structure, and cost is high; Simultaneously, 6 cover traction convertors independently arrange, and can make the conformability of electric property of each traction convertor relatively poor, affect stability and the reliability of traction system work.
Summary of the invention
The invention provides a kind of electric locomotive traction system, can effectively overcome the problem that existing traction system exists.
The invention provides a kind of electric locomotive traction system, comprise two traction current transformation cabinets, be respectively arranged with a cover traction convertor in each traction current transformation cabinet;
Described traction convertor comprises rectifier circuit, intermediate dc transmission circuit and the inverter circuit that is electrically connected to successively, wherein, described rectifier circuit comprises two sub-rectifier circuits that are connected in parallel, and described inverter circuit comprises three sub-inverter circuits that are connected in parallel;
The mouth of each sub-inverter circuit is connected with respectively asynchronous traction motor.
Above-mentioned electric locomotive traction system also can comprise traction transformer, and the former limit of described traction transformer has 1 primary winding, and secondary has 4 auxiliary winding;
Four sub-rectifier circuits in described traction current transformation cabinet are connected with corresponding auxiliary winding respectively.
In above-mentioned electric locomotive traction system, also be respectively arranged with subordinate inverter in each traction current transformation cabinet;
Described subordinate inverter is connected to the mouth of described intermediate dc output circuit.
In above-mentioned electric locomotive traction system, be respectively arranged with water cooling system in each traction current transformation cabinet, the traction convertor in each traction current transformation cabinet and subordinate inverter share described water cooling system.
Electric locomotive traction provided by the invention system, 3 sub-inverters that arrange in the traction current transformation cabinet can share 2 sub-rectifier circuits and 1 intermediate dc transmission circuit, thereby can realize the traction output of 3 electrical motors in a traction current transformation cabinet, for traditional traction system, can effectively reduce the quantity of rectifier, middle rectifying circuit, make the structure of traction system compacter, improve the integrated level of circuit in traction system, reduce system cost; In addition, because 3 sub-inverters share sub-rectifier and middle rectification transmission circuit, can reduce the control unit of pull-in control system on locomotive, improve the conformability of traction system electric property, improve stability and the reliability of traction system work.
Description of drawings
Fig. 1 is the structural representation of existing AC transmission electric power locomotive traction system;
The structural representation of Fig. 2 provides for the embodiment of the present invention electric locomotive traction system.
The specific embodiment
The structural representation of Fig. 2 provides for the embodiment of the present invention electric locomotive traction system.As shown in Figure 2, the present embodiment electric locomotive traction system comprises: two traction current transformation cabinets 1 are respectively arranged with a cover traction convertor 2 in each traction current transformation cabinet 1; Each traction convertor 2 comprises respectively rectifier circuit 21, intermediate dc transmission circuit 22 and the inverter circuit 23 that is electrically connected to successively, wherein, rectifier circuit 21 comprises two sub-rectifier circuits 211 that are connected in parallel, and inverter circuit 23 comprises three sub-inverter circuits 231 that are connected in parallel; The mouth of each sub-inverter circuit is connected with respectively asynchronous traction motor 3.The present embodiment electric locomotive traction system has 2 traction current transformation cabinets, three sub-inverter circuits in each traction current transformation cabinet can share 2 sub-rectifier circuits and an intermediate dc transmission circuit, make whole electric locomotive traction system architecture compact, electric equipment used is less, can effectively improve the integrated level of electric locomotive traction system, reduce volume, Cost reduction; Simultaneously, owing to sharing sub-rectifier circuit and intermediate conveyor circuit in each traction current transformation cabinet, can effectively reduce the quantity of each circuit control unit, improve the conformability of circuit performance, and then improve stability and the reliability of traction system work.
In the present embodiment, the input end of traction convertor 2 is connected with traction transformer 4, wherein, the former limit of traction transformer 4 has 1 primary winding 41, be connected on the input electrical network, the secondary of traction transformer 4 has 4 auxiliary winding 42, and each auxiliary winding 42 is connected with the input end of corresponding sub-rectifier circuit 211.Can find out, in the present embodiment, the secondary of traction transformer only needs to arrange 4 secondary windings, makes the simple in structure of traction transformer, and cost is low.
In the present embodiment, 2 sub-rectifier circuits 211 that are positioned at front end in traction current transformation cabinet 1 are four-quadrant rectifier, these two sub-rectifier circuits 211 can carry out rectification to the input power on the auxiliary winding 41 that connects respectively, and the direct supply parallel connection after rectification is inputed to intermediate dc transmission circuit 22; Direct current transmission circuit 22 is comprised of filtering tank circuit 221, secondary filtering circuit 222 and braking chopper circuit 223, have filtering energy storage, secondary filtering and braking copped wave function, export sub-inverter circuit 231 after direct current (DC) is processed to, and the secondary filtering reactor is installed in traction transformer.It will be appreciated by those skilled in the art that, for the traditional traction system shown in Fig. 1, sub-rectifier circuit in the present embodiment is with respect to the rectifier in Fig. 1, brachium pontis device wherein can adopt two-tube parallel connection, improve current class, can have higher power, to satisfy the rectification needs of traction system, wherein the principle of circuit structure and conventional rectifier circuit are similar, do not repeat them here.
In the present embodiment, also can be integrated with subordinate inverter in traction current transformation cabinet 1, thereby can utilize this subordinate inverter to provide electric power for the consumer on locomotive.particularly, as shown in Figure 2, be provided with subordinate inverter 5 in this traction current transformation cabinet 1, be connected to the mouth of intermediate dc output circuit 22, after being used for the dc inverter to rectifier circuit 21 outputs, obtain required alternating current, think that the alternating current consumer on locomotive provides power supply, can find out, in the interior integrated subordinate inverter of traction current transformation cabinet 1, can avoid arranging separately the large problem that takes up room that AuCT brings, also reduced simultaneously the required rectifier of rectifier has been set separately, make subordinate inverter can share rectifier circuit in traction convertor 2, and then reduced again the usage quantity of rectifier, Cost reduction.
In the present embodiment, above-mentioned traction current transformation cabinet 1 is interior can be provided with water cooling system, and traction convertor 2 and shared this water cooling system of subordinate inverter 5, can effectively improve integrated level and the cooling performance of circuit, reduces the volume of whole traction system.In practical application, the water pump in water cooling system, water tank and corresponding pipeline can be arranged on the traction current transformation cabinet and gather, and remaining equipment can be arranged in the cooling tower of locomotive, and be cooling to realize traction system is carried out, and can effectively improve capacity utilization rate.
It will be understood by those skilled in the art that when traction system is worked, need to control wherein sub-rectifier circuit 211 and sub-inverter circuit 231, to obtain the required horsepower output of traction, for each asynchronous traction motor 3 provides power supply.for this reason, for the present embodiment traction system is controlled, each traction current transformation cabinet 1 can adopt the traction control unit, be responsible for the control to two sub-rectifier circuits 211, the over-voltage suppression control of intermediate dc power output circuit and the control of sub-inverter circuit 231, particularly, this traction control unit can comprise that specifically 1 main control unit and 2 are from control unit, wherein, main control unit can be responsible for two sub-rectifier circuits, the over-voltage suppression control of intermediate dc power output circuit and the control of a sub-inverter circuit 231, can be responsible for respectively control to a sub-inverter circuit 231 from control unit for 2, when the pull-in control system on locomotive is controlled the present embodiment traction system like this, can this principal and subordinate control to replace as shown in Figure 1 traditional traction system to control separately every cover traction convertor, can effectively improve the conformability of electric property, simplify control process, improve the control effect of pull-in control system.
It will be understood by those skilled in the art that the pull-in control system on locomotive also comprises Auxiliary Control Element, so that the subordinate inverter in traction convertor is controlled.Like this, for whole traction system, each traction current transformation cabinet can have respectively a cover and control, be that pull-in control system on locomotive is when controlling the present embodiment traction system, only need to there be the two corresponding control units of cover just can realize control to traction system, when control system is controlled traction system, can make traction system have electric property conformability better, improve the serviceability of traction system.
In the present embodiment, input voltage with respect to tradition traction system shown in Figure 1, be that auxiliary winding exports the voltage of rectifier at 2100V, the input voltage of the present embodiment traction system can be 1471V, thereby can reduce the voltage class of system, for the system of high-pressure work, can effectively reduce the system difficulty like this, improve the reliability of design system.
To sum up, the electric locomotive traction system that the present embodiment provides, 3 sub-inverters can share 2 sub-rectifier circuits and 1 intermediate dc transmission circuit in each traction current transformation cabinet, can realize the traction output of 3 electrical motors in a traction current transformation cabinet, for traditional traction system, can effectively reduce the quantity of rectifier, intermediate dc transmission circuit, make the structure of traction system compacter, improve the integrated level of circuit in traction system, reduce system cost; Simultaneously, in the present embodiment traction system, owing to sharing sub-rectifier circuit and intermediate dc transmission circuit in each traction current transformation cabinet, can effectively simplify on locomotive in control system the control to the traction current transformation cabinet, improve the conformability of system electrical performance, improve traction system reliability of operation and stability.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. an electric locomotive traction system, is characterized in that, comprises two traction current transformation cabinets, is respectively arranged with a cover traction convertor in each traction current transformation cabinet;
Described traction convertor comprises rectifier circuit, intermediate dc transmission circuit and the inverter circuit that is electrically connected to successively, wherein, described rectifier circuit comprises two sub-rectifier circuits that are connected in parallel, and described inverter circuit comprises three sub-inverter circuits that are connected in parallel;
The mouth of each sub-inverter circuit is connected with respectively asynchronous traction motor.
2. electric locomotive traction according to claim 1 system, is characterized in that, also comprise traction transformer, the former limit of described traction transformer has 1 primary winding, and secondary has 4 auxiliary winding;
Four sub-rectifier circuits in described traction current transformation cabinet are connected with corresponding auxiliary winding respectively.
3. electric locomotive traction according to claim 1 system, is characterized in that, also is respectively arranged with subordinate inverter in each traction current transformation cabinet;
Described subordinate inverter is connected to the mouth of described intermediate dc output circuit.
4. electric locomotive traction according to claim 3 system, is characterized in that, be respectively arranged with water cooling system in each traction current transformation cabinet, the traction convertor in each traction current transformation cabinet and subordinate inverter share described water cooling system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110388174.6A CN103129564B (en) | 2011-11-29 | 2011-11-29 | Electric locomotive traction system |
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| CN201110388174.6A CN103129564B (en) | 2011-11-29 | 2011-11-29 | Electric locomotive traction system |
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| CN103129564A true CN103129564A (en) | 2013-06-05 |
| CN103129564B CN103129564B (en) | 2016-04-06 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296897A (en) * | 2012-03-05 | 2013-09-11 | 永济新时速电机电器有限责任公司 | Traction converter and electric transmission system of electric locomotive |
| CN104559945A (en) * | 2013-10-21 | 2015-04-29 | 中国石油化工股份有限公司 | Inverter cooling liquid and preparation method thereof |
| CN104648169A (en) * | 2015-01-27 | 2015-05-27 | 株洲南车时代电气股份有限公司 | Power supplying device for electric locomotive and train |
| CN104767398A (en) * | 2015-03-31 | 2015-07-08 | 株洲南车时代电气股份有限公司 | High-integration converter device |
| CN105416304A (en) * | 2015-12-02 | 2016-03-23 | 广州电力机车有限公司 | Tractor for tramcar |
| CN105720893A (en) * | 2014-12-02 | 2016-06-29 | 永济新时速电机电器有限责任公司 | Traction converter with secondary filter circuit |
| CN105720831A (en) * | 2014-12-02 | 2016-06-29 | 永济新时速电机电器有限责任公司 | Traction converter with double-voltage-sensor bus voltage detection circuit |
| CN105720830A (en) * | 2014-12-02 | 2016-06-29 | 永济新时速电机电器有限责任公司 | Traction converter with bus voltage grounding protection voltage-division sampling circuit |
| CN107696873A (en) * | 2017-10-23 | 2018-02-16 | 西南交通大学 | A kind of EMUs Traction Drive electric power system |
| CN109698615A (en) * | 2017-10-20 | 2019-04-30 | 株洲中车时代电气股份有限公司 | A kind of traction convertor of double-current system independent axes control |
| WO2020087599A1 (en) * | 2018-10-31 | 2020-05-07 | 中车永济电机有限公司 | Intermediate direct-current loop of traction converter, and traction converter |
| WO2020093463A1 (en) * | 2018-11-08 | 2020-05-14 | 中车永济电机有限公司 | Megawatt-level direct-drive permanent magnet electric drive system for electric locomotive |
| CN111923742A (en) * | 2020-07-20 | 2020-11-13 | 中车永济电机有限公司 | Direct-drive permanent magnet traction electric transmission system |
| WO2021042557A1 (en) * | 2019-09-03 | 2021-03-11 | 中车永济电机有限公司 | Traction-auxiliary converter and converter cabinet for internal combustion locomotive |
| WO2021088538A1 (en) * | 2019-11-05 | 2021-05-14 | 中车大连机车车辆有限公司 | Axle-controlled internal combustion locomotive, and main transmission system and method therefor |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296897A (en) * | 2012-03-05 | 2013-09-11 | 永济新时速电机电器有限责任公司 | Traction converter and electric transmission system of electric locomotive |
| CN104559945B (en) * | 2013-10-21 | 2018-01-16 | 中国石油化工股份有限公司 | Inverter coolant and preparation method thereof |
| CN104559945A (en) * | 2013-10-21 | 2015-04-29 | 中国石油化工股份有限公司 | Inverter cooling liquid and preparation method thereof |
| CN105720893A (en) * | 2014-12-02 | 2016-06-29 | 永济新时速电机电器有限责任公司 | Traction converter with secondary filter circuit |
| CN105720831A (en) * | 2014-12-02 | 2016-06-29 | 永济新时速电机电器有限责任公司 | Traction converter with double-voltage-sensor bus voltage detection circuit |
| CN105720830A (en) * | 2014-12-02 | 2016-06-29 | 永济新时速电机电器有限责任公司 | Traction converter with bus voltage grounding protection voltage-division sampling circuit |
| CN104648169A (en) * | 2015-01-27 | 2015-05-27 | 株洲南车时代电气股份有限公司 | Power supplying device for electric locomotive and train |
| CN104648169B (en) * | 2015-01-27 | 2017-08-11 | 株洲南车时代电气股份有限公司 | A kind of electric locomotive train power supply device |
| CN104767398A (en) * | 2015-03-31 | 2015-07-08 | 株洲南车时代电气股份有限公司 | High-integration converter device |
| CN105416304A (en) * | 2015-12-02 | 2016-03-23 | 广州电力机车有限公司 | Tractor for tramcar |
| CN109698615A (en) * | 2017-10-20 | 2019-04-30 | 株洲中车时代电气股份有限公司 | A kind of traction convertor of double-current system independent axes control |
| CN109698615B (en) * | 2017-10-20 | 2021-07-20 | 株洲中车时代电气股份有限公司 | Double-flow independent shaft control traction converter |
| CN107696873A (en) * | 2017-10-23 | 2018-02-16 | 西南交通大学 | A kind of EMUs Traction Drive electric power system |
| CN107696873B (en) * | 2017-10-23 | 2023-12-22 | 西南交通大学 | Motor train unit traction transmission power supply system |
| WO2020087599A1 (en) * | 2018-10-31 | 2020-05-07 | 中车永济电机有限公司 | Intermediate direct-current loop of traction converter, and traction converter |
| WO2020093463A1 (en) * | 2018-11-08 | 2020-05-14 | 中车永济电机有限公司 | Megawatt-level direct-drive permanent magnet electric drive system for electric locomotive |
| WO2021042557A1 (en) * | 2019-09-03 | 2021-03-11 | 中车永济电机有限公司 | Traction-auxiliary converter and converter cabinet for internal combustion locomotive |
| WO2021088538A1 (en) * | 2019-11-05 | 2021-05-14 | 中车大连机车车辆有限公司 | Axle-controlled internal combustion locomotive, and main transmission system and method therefor |
| CN111923742A (en) * | 2020-07-20 | 2020-11-13 | 中车永济电机有限公司 | Direct-drive permanent magnet traction electric transmission system |
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