CN206727903U - A kind of AuCT, traction power unit and vehicle - Google Patents
A kind of AuCT, traction power unit and vehicle Download PDFInfo
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- CN206727903U CN206727903U CN201720546722.6U CN201720546722U CN206727903U CN 206727903 U CN206727903 U CN 206727903U CN 201720546722 U CN201720546722 U CN 201720546722U CN 206727903 U CN206727903 U CN 206727903U
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Abstract
The utility model provides a kind of AuCT, traction power unit and vehicle, and AuCT includes input filter unit, precharge unit, prime boosting unit, intermediate frequency isolation DC/DC current transformers, three-phase inversion unit, output filter unit and external output control unit；The input of input filter unit is connected with high voltage dc bus, for filtering out the harmonic wave and common mode disturbances of direct current input；Precharge unit is used to enter line precharge to DC support electric capacity；Prime boosting unit connects precharge unit, for exporting desired DC voltage；Intermediate frequency isolation DC/DC current transformers are used to carry out medium frequency inverter to the DC voltage of prime boosting unit output, generate the square-wave voltage of intermediate frequency, and rectification is middle dc voltage after carrying out isolation transformation to the square-wave voltage of intermediate frequency；It is three-phase main-frequency alternating current that three-phase inversion unit, which is used for middle dc voltage inversion,；Output filter unit is used to be filtered three-phase main-frequency alternating current；External output control unit is used to control and by filtered three-phase main-frequency exchange electricity output to load.
Description
Technical field
It the utility model is related to field of track traffic, more particularly to a kind of AuCT, traction power unit and vehicle.
Background technology
AuCT is the important mobile unit of rail vehicle, can be the threephase loads such as whole-vehicle air-conditioner, air compressor
AC power is provided with part single-phase load.Traditional AuCT is more using Industrial Frequency Transformer isolation and hard switching intermediate frequency transformation
The mode of device isolation.
Industrial Frequency Transformer isolation method is that DC inverter is converted into three-phase by Industrial Frequency Transformer into after three-phase alternating current
Power frequency supply exports, and because the working frequency of Industrial Frequency Transformer is relatively low, the usual volume weight of such transformer is larger.
It is first single-phase mid-frequency alternating current through H-bridge circuit inversion by direct current that hard switching intermediate-frequency transformer isolation method, which is, warp
Rectification obtains 650-700V DC voltages after intermediate-frequency transformer isolation transformation, then exports three-phase main-frequency electricity by three-phase inverter again
Source.Such a mode is due to using hard switching mode, and power switch pipe quantity is more in a whole set of topology, therefore is lost larger.
It should be noted that the introduction to technical background above is intended merely to conveniently carry out clearly the technical solution of the utility model
Chu, complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Can not merely because these schemes in this practicality
New background section is set forth and thinks that above-mentioned technical proposal is known to those skilled in the art.
Utility model content
The utility model embodiment provides a kind of AuCT, traction power unit and vehicle, existing auxiliary to solve
Help the problem of current transformer volume weight is larger, loss is higher.
In order to achieve the above object, a kind of AuCT of the utility model embodiment offer, including input filter unit,
Precharge unit, prime boosting unit, intermediate frequency isolation DC/DC current transformers, three-phase inversion unit, output filter unit and externally
Output control unit；The input of the input filter unit is connected with high voltage dc bus, and output end connects the precharge
Unit, for filtering out the harmonic wave and common mode disturbances of direct current input；The precharge unit connects the input filter unit, is used for
Line precharge is entered to DC support electric capacity；The prime boosting unit connects the precharge unit, desired straight for exporting
Flow voltage；The intermediate frequency isolation DC/DC current transformers connect the prime boosting unit, for being exported to the prime boosting unit
DC voltage carry out medium frequency inverter, generate the square-wave voltage of intermediate frequency, and isolation transformation is carried out to the square-wave voltage of the intermediate frequency
Rectification is middle dc voltage afterwards；The three-phase inversion unit connects the intermediate frequency isolation DC/DC current transformers, used in will be described
Between DC voltage inversion be three-phase main-frequency alternating current；The output filter unit connects the three-phase inversion unit, for institute
Three-phase main-frequency alternating current is stated to be filtered；The externally output control unit connects the output filter unit, for controlling simultaneously
The filtered three-phase main-frequency is exchanged into electricity output to external loading.
Further, in one embodiment, the input filter unit includes positive and negative dc bus filter inductance, positive and negative mother
RC series arms in parallel between line, and the boost function inductance by being multiplexed in the prime boosting unit, form LCL filtering
Device.
Further, in one embodiment, the precharge unit includes main contactor, by-pass switch and precharge electricity
Resistance；The main contactor is used for the high pressure being switched on or switched off on the high voltage dc bus, and the pre-charge resistance is used for straight
Stream Support Capacitor enters line precharge, and the by-pass switch is in parallel with pre-charge resistance progress, for after the completion of precharge
Bypass the pre-charge resistance.
Further, in one embodiment, the prime boosting unit includes boost boost modules, the boost boostings
Module is made up of boost function inductance, diode, IGBT and DC capacitor, for maintaining to export desired DC voltage.
Further, in one embodiment, intermediate frequency isolation DC/DC current transformers include LLC medium frequency inverters unit and not
Control rectification unit；The LLC medium frequency inverters unit includes single-phase inversion unit, resonant capacitor group and intermediate-frequency transformer；It is described
Single-phase inversion unit is connected with the boost boost modules, and the DC voltage for being exported to the boost boost modules is carried out
Medium frequency inverter, generate the square-wave voltage of intermediate frequency；The resonant capacitor group and the intermediate-frequency transformer primary side leakage inductance and excitatory electricity
Sense composition LLC series resonant tanks, the intermediate-frequency transformer carries out transformation processing to the square-wave voltage of the intermediate frequency, and realizes electricity
Air bound from；The uncontrollable rectifier unit includes diode rectifier bridge and capacitor bank；Diode rectifier bridge input with it is described
Intermediate-frequency transformer secondary is connected, and output is connected with the three-phase inversion unit, for by the square wave of the intermediate-frequency transformer secondary
Voltage commutation is the middle dc voltage；The capacitor bank and the output-parallel of the diode rectifier bridge, for eliminating
The influence that circuit stray parameter is controlled LLC.
Further, in one embodiment, the three-phase inversion unit includes the low-voltage direct Support Capacitor and three-phase
Inverter；It is three-phase main-frequency alternating current that the three-phase inverter, which is used for the DC inverter of uncontrollable rectifier unit output,
Export to the output filter unit；The low-voltage direct Support Capacitor is used for the input voltage for stablizing the three-phase inverter.
Further, in one embodiment, the output filter unit includes three-phase alternating current inductance and three-phase alternating current electric capacity,
Three-phase main-frequency alternating current for being exported to the three-phase inverter is filtered.
Further, in one embodiment, the externally output control unit includes three-phase output contactor and storehouse electricity consumption
Pre-charge circuit；The three-phase output contactor connects the output filter unit, auxiliary for being controlled under accidental conditions
Help being switched on or switched off for the load of current transformer；The storehouse electricity consumption pre-charge circuit is used in external storehouse electricity consumption operating mode, passes through institute
The anti-paralleled diode for stating three-phase inverter enters line precharge to the DC support electric capacity, and described three are closed after the completion of precharge
Phase output contactor, powered for charger.
In order to achieve the above object, the utility model embodiment also provides a kind of traction power unit, including traction current transformation
Device and above-mentioned AuCT.
In order to achieve the above object, the utility model embodiment also provides a kind of vehicle, including above-mentioned traction power list
Member.
The AuCT, traction power unit and vehicle of the utility model embodiment, opened up as a result of intermediate frequency isolation
Structure is flutterred, compared to Industrial Frequency Transformer isolation scheme, the volume and weight of AuCT is reduced, improves AuCT
Power density；Also, the output-parallel capacitor bank of the uncontrollable rectifier unit of the utility model embodiment, eliminate never control it is whole
Unit is flowed to influence of the circuit stray parameter to LLC circuit soft switch effects between three-phase inversion unit, ensure that the height of system
Effect property.
With reference to following explanation and accompanying drawing, particular implementation of the present utility model is disclose in detail, specifies this practicality
New principle can be in a manner of adopted.It should be understood that embodiment of the present utility model in scope not thus by
Limitation.In the range of the spirit and terms of appended claims, embodiment of the present utility model includes many changes, modifications
With it is equivalent.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
Used in individual other embodiment, it is combined with the feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more further features, one integral piece, step or component.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those skilled in the art, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the AuCT of the utility model embodiment；
Fig. 2 is the physical circuit figure of the AuCT of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Below with reference to some representative embodiments of the present utility model, principle and essence of the present utility model are explained in detail
God.
The purpose of this utility model is the deficiency for existing AuCT, there is provided a kind of new AuCT,
To realize small-sized AuCT, light weight and efficient purpose.
Fig. 1 is the structural representation of the AuCT of the utility model embodiment.As shown in figure 1, the present embodiment is auxiliary
Current transformer is helped to include：Input filter unit 1, precharge unit 2, prime boosting unit 3, intermediate frequency isolation DC/DC current transformers 4, three
Phase inversion unit 5, output filter unit 6 and external output control unit 7.
The input of the input filter unit 1 is connected with high voltage dc bus, and output end connects the precharge unit
2, for filtering out the harmonic wave and common mode disturbances of direct current input；
The precharge unit 2 connects the input filter unit 1, for entering line precharge to DC support electric capacity；
The prime boosting unit 3 connects the precharge unit 2, for exporting desired DC voltage；
The intermediate frequency isolation DC/DC current transformers 4 connect the prime boosting unit 3, for the prime boosting unit 3
The DC voltage of output carries out medium frequency inverter, generates the square-wave voltage of intermediate frequency, and the square-wave voltage of the intermediate frequency is isolated
Rectification is middle dc voltage after transformation；
The three-phase inversion unit 5 connects intermediate frequency isolation DC/DC current transformers 4, for by the middle dc voltage
Inversion is three-phase main-frequency alternating current；
The output filter unit 6 connects the three-phase inversion unit 5, for being filtered to the three-phase main-frequency alternating current
Ripple；
The externally output control unit 7 connects the output filter unit 6, for controlling and by described filtered three
Phase industrial frequency AC electricity output is to external loading.
Fig. 2 is the physical circuit figure of the AuCT of the utility model embodiment.Below in conjunction with Fig. 1 and Fig. 2, explain in detail
State each component units of the AuCT of the utility model embodiment.
1. input filter unit 1, input is connected with train high voltage dc bus, and it includes：Positive and negative dc bus filtering
RC series arms in parallel (including electric capacity 12 and resistance 13) between inductance 11, positive and negative busbar, and it is multiplexed the boosting work(of boost circuits
Energy inductance 31, forms LCL filter, for reducing current transformer input harmonics and preventing current transformer from producing the injection of switch subharmonic directly
Flow power network.The resistance 13 is used to increase system damping, it is suppressed that the generation of LCL circuit resonances.As shown in Fig. 2 contact net is electric
The LCL filter that pressure forms by line inductance 11, electric capacity 12 and resistance 13, boost functions inductance 31 enters, and has filtered out contact
Online a large amount of harmonic wave interferences, while above-mentioned LCL filter inhibits switch subharmonic injection contact net caused by current transformer.And
And resistance 13 increases system damping, it is suppressed that the generation of LCL circuit resonances.
2. precharge unit 2, for entering line precharge to electric capacity, it includes：Main contactor 21, by-pass switch 22 and preliminary filling
Resistance 23, the main contactor 21 are used to be switched on or switched off high pressure, and the pre-charge resistance 23 is in input filter unit 1
Electric capacity 32 in electric capacity 12 and prime boosting unit 3 enters line precharge, and the by-pass switch 22 bypasses in advance after the completion of precharge
Charging resistor 23.Precharge unit 2 is that the electric capacity 32 in electric capacity 12 and prime boosting unit 3 in input filter unit 1 is carried out
Precharge, it is in order to avoid the high current at the initial stage of charging is caused to damage or destroyed to capacitor.It is when it is implemented, generally right
The capacitor in intermediate dc loop enters line precharge, with the power up phase of current transformer access precharge unit limitation charging current
Amplitude, to prevent excessive dash current caused by direct plungeing into.
3. prime boosting unit 3, including：Boost function inductance 31, diode, IGBT and electric capacity 32, form boost boostings
Module, realize and maintain to export desired DC voltage in contact net voltage change.
4. intermediate frequency isolation DC/DC current transformers 4, including LLC medium frequency inverters unit 41 and uncontrollable rectifier unit 42.Intermediate frequency is phase
For power frequency 50Hz, its working frequency, according to the ability of critical piece, can generally may be used in the range of 5kHz~100kHz
It is arranged in the range of 18kHz~25kHz.In the present embodiment, referring to shown in Fig. 2, the LLC medium frequency inverters unit 41 includes single
Phase inversion unit 411, resonant capacitor group 412 and intermediate-frequency transformer 413.
The single-phase inversion unit 411 is connected with the boost boost modules, for defeated to the boost boost modules
The DC voltage gone out carries out medium frequency inverter, generates the square-wave voltage of intermediate frequency；
The resonant capacitor group 412 is connected humorous with the primary side leakage inductance of intermediate-frequency transformer 413 and magnetizing inductance composition LLC
Shake loop, and the intermediate-frequency transformer 413 carries out transformation processing to the square-wave voltage of the intermediate frequency, and realizes electrical isolation.
The uncontrollable rectifier unit 42 includes diode rectifier bridge 421 and capacitor bank 422；
The input of diode rectifier bridge 421 is connected with the secondary of intermediate-frequency transformer 413, output and the three-phase inversion
Unit 5 is connected, for being the middle dc voltage by the square-wave voltage rectification of the secondary of intermediate-frequency transformer 413；
The capacitor bank 422 and the output-parallel of the diode rectifier bridge 421, for eliminating circuit stray parameter pair
The influence of LLC controls.
Intermediate frequency isolation DC/DC current transformers 4 can use full-bridge or half-bridge LLC patterns, the multiplexing of two of which series resonance inductor
The primary side leakage inductance and magnetizing inductance of intermediate-frequency transformer 413, pass through the switching frequency of single-phase inversion unit 411 and two resonant frequencies
Coordinate so that transformer primary side inverter circuit is operated in Zero-voltage soft switch state, the diode rectifier bridge 421 of transformer secondary
Zero-current soft switch state is operated in, system effectiveness is improved while voltage conversion is completed.
5. three-phase inversion unit 5, input is connected with uncontrollable rectifier unit 42, and output is connected with output filter unit 6, and it is wrapped
Include three-phase inverter 51 and low-voltage direct Support Capacitor group 52.It is three-phase work that the three-phase inverter 51, which is used for DC inverter,
Frequency alternating current, 52 groups of the low-voltage direct Support Capacitor are used to stablize inverter input voltage.Three-phase inverter 51 possesses parallel connection
Control function, the amplitude and frequency of three-phase main-frequency alternating current are adjusted in the margin of tolerance according to bearing power, ensure that permutation is in parallel
The power of the assembling unit balances.
6. filter unit 6 is exported, including three-phase alternating current inductance and three-phase alternating current electric capacity, for defeated to the three-phase inverter
The three-phase main-frequency alternating current gone out is filtered.
7. external output control unit 7, including three-phase output contactor 71 and storehouse electricity consumption pre-charge circuit 72, the three-phase
Output contactor 71 connects the output filter unit, for controlling the load of AuCT to connect under accidental conditions
On-off is opened；The storehouse electricity consumption pre-charge circuit 72 is used in external storehouse electricity consumption operating mode, passes through the anti-of the three-phase inverter
Parallel diode enters line precharge to the DC support electric capacity, and the three-phase output contactor is closed after the completion of precharge, is
Charger is powered, and is easy to debug in Ku Nei or station.
AuCT disclosed in the utility model embodiment can be used for the traction of the rail vehicles such as subway or high ferro
In power unit, also, compared with prior art, there is following technique effect in the utility model：
1. the utility model can tackle the operating mode of input voltage wide variation by prime booster circuit；
2. the utility model input increases RC series arms by being multiplexed boost boost function inductance, LCL is formed
Wave filter, reduce current transformer input harmonics and prevent current transformer from producing switch subharmonic injection direct current network；
3. the utility model series resistance on the electric capacity of LCL filter, increases system damping, it is suppressed that the hair of resonance
It is raw；
4. intermediate frequency isolated topology structure of the present utility model, compared to Industrial Frequency Transformer isolation scheme, reduces auxiliary converter
The volume and weight of device, improve the power density of AuCT；
5. LLC circuit topologies of the present utility model, it is ensured that single-phase inversion unit is operated in Zero-voltage soft switch pattern, no
Control rectification unit is operated in zero-current soft switch pattern, reduces system loss, improves the conversion efficiency of AuCT；
6. the output-parallel capacitor of uncontrollable rectifier unit of the present utility model, eliminate and never control rectification unit to three-phase
Influence of the circuit stray parameter to LLC circuit soft switch effects between inversion unit, ensure that the high efficiency of system；
7. electricity consumption pre-charge circuit in storehouse of the present utility model can pass through the anti-of three-phase inverter under storehouse electricity consumption condition of supplying power
Parallel diode is charged to DC support electric capacity, and output contactor is closed after the completion of precharge, can stabilize to charger confession
Electricity, facilitate in storehouse or station in debugging efforts.
Various illustrative logical blocks described in the utility model embodiment, or unit can pass through general procedure
Device, digital signal processor, application specific integrated circuit (ASIC), field programmable gate array or other programmable logic devices, from
The design of door or transistor logic, discrete hardware components, or any of the above described combination is dissipated come the function described by realizing or operate.It is logical
Can be microprocessor with processor, alternatively, the general processor can also be any traditional processor, controller, micro-
Controller or state machine.Processor can also be realized by the combination of computing device, such as digital signal processor and Wei Chu
Device, multi-microprocessor are managed, one or more microprocessors combine a Digital Signal Processor Core, or any other like
Configure to realize.
Specific embodiment is applied in the utility model to be set forth principle of the present utility model and embodiment, with
The explanation of upper embodiment is only intended to help and understands method and its core concept of the present utility model；Meanwhile for this area
Those skilled in the art, according to thought of the present utility model, there will be changes, comprehensive in specific embodiments and applications
Upper described, this specification content should not be construed as to limitation of the present utility model.
Claims (10)
1. a kind of AuCT, it is characterised in that including input filter unit, precharge unit, prime boosting unit, intermediate frequency
Isolate DC/DC current transformers, three-phase inversion unit, output filter unit and external output control unit；
The input of the input filter unit is connected with high voltage dc bus, and output end connects the precharge unit, is used for
Filter out the harmonic wave and common mode disturbances of direct current input；
The precharge unit connects the input filter unit, for entering line precharge to DC support electric capacity；
The prime boosting unit connects the precharge unit, for exporting desired DC voltage；
The intermediate frequency isolation DC/DC current transformers connect the prime boosting unit, for what is exported to the prime boosting unit
DC voltage carries out medium frequency inverter, generates the square-wave voltage of intermediate frequency, and after carrying out isolation transformation to the square-wave voltage of the intermediate frequency
Rectification is middle dc voltage；
The three-phase inversion unit connects the intermediate frequency isolation DC/DC current transformers, for being by the middle dc voltage inversion
Three-phase main-frequency alternating current；
The output filter unit connects the three-phase inversion unit, for being filtered to the three-phase main-frequency alternating current；
The externally output control unit connects the output filter unit, for controlling and by the filtered three-phase main-frequency
Electricity output is exchanged to external loading.
2. AuCT according to claim 1, it is characterised in that it is female that the input filter unit includes positive and negative direct current
RC series arms in parallel between line filter inductance, positive and negative busbar, and the boost function by being multiplexed in the prime boosting unit
Inductance, form LCL filter.
3. AuCT according to claim 1, it is characterised in that the precharge unit includes main contactor, side
Way switch and pre-charge resistance；
The main contactor is used for the high pressure being switched on or switched off on the high voltage dc bus, and the pre-charge resistance is used for straight
Stream Support Capacitor enters line precharge, and the by-pass switch is in parallel with pre-charge resistance progress, for after the completion of precharge
Bypass the pre-charge resistance.
4. AuCT according to claim 1, it is characterised in that the prime boosting unit boosts including boost
Module, the boost boost modules are made up of boost function inductance, diode, IGBT and DC capacitor, for maintaining the output phase
The DC voltage of prestige.
5. AuCT according to claim 4, it is characterised in that the intermediate frequency isolation DC/DC current transformers include LLC
Medium frequency inverter unit and uncontrollable rectifier unit；
The LLC medium frequency inverters unit includes single-phase inversion unit, resonant capacitor group and intermediate-frequency transformer；
The single-phase inversion unit is connected with the boost boost modules, for the direct current exported to the boost boost modules
Voltage carries out medium frequency inverter, generates the square-wave voltage of intermediate frequency；
The resonant capacitor group and the intermediate-frequency transformer primary side leakage inductance and magnetizing inductance composition LLC series resonant tanks, institute
State intermediate-frequency transformer and transformation processing is carried out to the square-wave voltage of the intermediate frequency, and realize electrical isolation；
The uncontrollable rectifier unit includes diode rectifier bridge and capacitor bank；
The diode rectifier bridge input is connected with the intermediate-frequency transformer secondary, and output is connected with the three-phase inversion unit,
For being the middle dc voltage by the square-wave voltage rectification of the intermediate-frequency transformer secondary；
The output-parallel of the capacitor bank and the diode rectifier bridge, LLC is controlled for eliminating circuit stray parameter
Influence.
6. AuCT according to claim 5, it is characterised in that the three-phase inversion unit includes low-voltage direct branch
Support electric capacity and three-phase inverter；
It is three-phase main-frequency alternating current that the three-phase inverter, which is used for the DC inverter of uncontrollable rectifier unit output, output
To the output filter unit；
The low-voltage direct Support Capacitor is used for the input voltage for stablizing the three-phase inverter.
7. AuCT according to claim 6, it is characterised in that the output filter unit includes three-phase alternating current
Sense and three-phase alternating current electric capacity, the three-phase main-frequency alternating current for being exported to the three-phase inverter are filtered.
8. AuCT according to claim 6, it is characterised in that it is defeated that the externally output control unit includes three-phase
Go out contactor and storehouse electricity consumption pre-charge circuit；
The three-phase output contactor connects the output filter unit, for controlling AuCT under accidental conditions
Load be switched on or switched off；
The storehouse electricity consumption pre-charge circuit is used in external storehouse electricity consumption operating mode, passes through the pole of inverse parallel two of the three-phase inverter
Pipe enters line precharge to the DC support electric capacity, and the three-phase output contactor is closed after the completion of precharge, is supplied for charger
Electricity.
9. a kind of traction power unit, including traction convertor and AuCT, it is characterised in that the AuCT is
AuCT as described in claim any one of 1-8.
10. a kind of vehicle, it is characterised in that including traction power unit as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720546722.6U CN206727903U (en) | 2017-05-17 | 2017-05-17 | A kind of AuCT, traction power unit and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720546722.6U CN206727903U (en) | 2017-05-17 | 2017-05-17 | A kind of AuCT, traction power unit and vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070282A (en) * | 2017-05-17 | 2017-08-18 | 中国铁道科学研究院 | A kind of AuCT, traction power unit and vehicle |
| CN110289764A (en) * | 2019-05-29 | 2019-09-27 | 中国国家铁路集团有限公司 | Power conversion device |
| CN114362561A (en) * | 2021-12-30 | 2022-04-15 | 中车永济电机有限公司 | Locomotive traction converter and control method thereof |
-
2017
- 2017-05-17 CN CN201720546722.6U patent/CN206727903U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070282A (en) * | 2017-05-17 | 2017-08-18 | 中国铁道科学研究院 | A kind of AuCT, traction power unit and vehicle |
| CN110289764A (en) * | 2019-05-29 | 2019-09-27 | 中国国家铁路集团有限公司 | Power conversion device |
| CN114362561A (en) * | 2021-12-30 | 2022-04-15 | 中车永济电机有限公司 | Locomotive traction converter and control method thereof |
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