CN203233317U - Traction converter for diesel locomotive - Google Patents
Traction converter for diesel locomotive Download PDFInfo
- Publication number
- CN203233317U CN203233317U CN 201320284936 CN201320284936U CN203233317U CN 203233317 U CN203233317 U CN 203233317U CN 201320284936 CN201320284936 CN 201320284936 CN 201320284936 U CN201320284936 U CN 201320284936U CN 203233317 U CN203233317 U CN 203233317U
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- CN
- China
- Prior art keywords
- cabinet
- diesel locomotive
- described cabinet
- traction convertor
- air channel
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- Expired - Fee Related
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Abstract
Disclosed in the utility model is a traction converter for a diesel locomotive. The provided traction converter comprises a three-phase diode rectifier, an inverter module, a drive control unit, a signal detection unit, a discharging unit, a busbar, and a cooling channel and the like. According to the provided traction converter, a forced air cooling mode is used to carry out heat radiation on the system, thereby solving a problem of cooling of a power module and improving the efficiency of the power module. And an eddy current effect existing universally can be improved and thus stray losses that is caused by the phenomenon can be reduced.
Description
Technical field
The utility model relates to traction convertor, particularly a kind of diesel locomotive traction convertor.
Background technology
AC drive diesel locomotive generally adopts three-phase diode rectifier+VVVF inverter pattern with the current transformer main circuit at present, AC induction motor of each inverter traction, and diesel locomotive is because the wind-cooling heat dissipating system is adopted in the restriction of its locomotive total arrangement more.According to the characteristics of air cooling system, require the sealing of current transformer to get well since cooling blower integrated dedusting function, can guarantee the cleaning in the air channel to a great extent.
The defective of GE car traction convertor:
1) main generator output inserts traction convertor by fuse, does not realize the isolation of two trailer systems.
2) rectifier band No. six inverters, if rectifier or fault of converter occur, car load power total loss influences the operation of locomotive.
3) adopt IGBT element discrete to arrange that independently copper radiator is installed in each IGBT back, whole cabinet device arrangements is disperseed, and is not easy to assemble and safeguard.
4) the door safety interlocking adopts the mechanical switch interlocking, and the opposite house installation accuracy requires high, easily reports by mistake.
5) do not have the high pressure warning lamp, can't judge that security risk is arranged during maintenance to middle circuit voltage intuitively.
The shortcoming of DF8CJ internal combustion car current transformer:
1) mode of utilizing DC starting generator and gearbox to start main generator causes the cost height, and complex structure also is unfavorable for the space saving.
2) do not have a safety interlocking equipment, have potential safety hazard.
3) do not have the high pressure warning lamp, can't judge that security risk is arranged during maintenance to middle circuit voltage intuitively.
4) current transformer this as water-cooling system, more complicated, cost is higher.
The utility model content
Technical problem to be solved in the utility model is, at the prior art deficiency, provides a kind of diesel locomotive traction convertor, satisfies the operational environment requirement of diesel locomotive vehicular field, makes things convenient for installation and maintenance, structural strength height, internal structure compactness; The electromagnetic interference of minimizing system and the vortex phenomenon between circuit solve the heating problem between circuit; Be convenient to produce, assemble and safeguard.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of diesel locomotive traction convertor, comprise cabinet, and described cabinet is divided into the identical front and back two parts of structure by the air channel; Described cabinet front portion is divided into the left and right sides by a middle vertical beam, is respectively equipped with four cavitys in the cabinet of the left and right sides; Discharge cell and high pressure warning lamp are fixedly arranged in the cavity of left side top, and each fixedly has an inverter module in two cavitys of left side central portion, fixedly has busbar, current sensor, left side to be provided with cabinet door A in the cavity of left bottom; In the cavity at top, right side motion control unit is arranged fixedly, in two cavitys of right side central three-phase diode rectifier and inverter module are arranged fixedly respectively; Fixedly have busbar and current sensor, the cavity at top, right side to be provided with cabinet door B outward in the cavity of bottom, right side, the cabinet of right side central and bottom is provided with cabinet door C outward; Dividing plate in the described air channel is divided into left and right sides two parts with described air channel; Cabinet left side and the right side of described dividing plate correspondence position are provided with air channel dividing plate door; Cooling blower is fixedly arranged at described cabinet top or bottom; Described cabinet one side is provided with two small box, and intermediate dc contactor, three-phase ac contactor, output busbar and wireplint are fixedly arranged in the described small box; Described cabinet one side is provided with air outlet.
As preferred version, described cabinet top is provided with suspension ring; Be equipped with handle on described cabinet door A, cabinet door B, the cabinet door C; Described cabinet right side is provided with the control signal plug; Described cabinet top is provided with for the fixing clamping plate of current transformer top cable.
Compared with prior art, the beneficial effect that the utility model has is: the utility model adopts the mentality of designing of symmetrization, can satisfy the operational environment requirement of diesel locomotive vehicular field, makes things convenient for installation and maintenance, structural strength height, internal structure compactness; All high-voltage electrical apparatus wiring adopt busbar to connect, and have reduced the electromagnetic interference of system and the vortex phenomenon between circuit, have solved the heating problem between circuit; The heat radiation of employing forced air cooling, cooling air channel is positioned at the middle part of current transformer, and is simple and reliable; Be convenient to produce, assemble and safeguard.
Description of drawings
Fig. 1 is the utility model one embodiment cabinet external structure front view;
Fig. 2 is the utility model one embodiment cabinet external structure left view;
Fig. 3 is the utility model one embodiment cabinet external structure vertical view;
Fig. 4 is the utility model one embodiment cabinet external structure right view;
Fig. 5 is the utility model one embodiment cabinet external structure rearview;
Fig. 6 is the utility model one embodiment internal structure front view;
Fig. 7 is the utility model one embodiment internal structure rearview;
Fig. 8 is the utility model one embodiment internal structure right view;
Fig. 9 is the utility model one embodiment air channel structure front view;
Figure 10 is the utility model one embodiment air channel structure left view;
Figure 11 is the utility model one embodiment air channel structure vertical view;
Figure 12 is the utility model current transformer main circuit schematic diagram.
Embodiment
The utility model main circuit adopts three-phase diode rectifier+VVVF inverter pattern, main generator output three-phase alternating current is connected in two three-phase diode rectifiers through two three-phase ac contactors, each three-phase diode rectifier 14 is with three inverter modules 16, be three motor power supplies of a bogie, every unit intermediate loop also is provided with high pressure warning light 17.As Fig. 1～Fig. 8, cabinet door A1 mainly places inverter module 16, discharge cell 18, high pressure warning lamp 17 and busbar etc. in the back; The main motion control unit 15 of placing in cabinet door B2 the inside; Main three-phase diode rectifier 14, inverter module 16, busbar and the parts such as voltage sensor, current sensor 20 placed in cabinet door C3 the inside.The used door in the back side of current transformer is consistent with the front, can exchange fully.Also consistent with the current transformer front of the device arrangements of face equally, behind the door.Two small box are arranged on the right side of current transformer, and in order to place three-phase ac contactor 21 and intermediate dc contactor 22, the door of small box comprises door 6,7,9,10.
Generator output is input to three-phase ac contactor 21 by busbar 24, is connected to three-phase diode rectifier 14 by busbar then, is connected to inverter module 16 by middle busbar and branch road busbar afterwards, is connected to AC induction motor by the output busbar.The cabinet top is provided with the fixedly clamping plate 5 of current transformer top cable; The current transformer bottom is provided with installing rack 11,12; Cabinet left side and right side are respectively equipped with for the door 4,8 that air channel dividing plate 23 is installed; On two the middle vertical beams in the front and back of current transformer safety interlock switch 19 has been installed all, whether has been opened in order to detecting gate; Intermediate dc contactor 22 is used for connecting and the disjunction battery circuit; The effect of air channel dividing plate 23 is that the cooling air that blower fan blows into is shunted, and makes the air mass flow in each sub-air channel approach; The current transformer front and back is respectively two of current transformer, is isolated from each other, and the centre is cooling air channel.The current transformer main circuit structure is simple, adopts the structure of the uncontrollable rectification of three-phase can solve the low and big problem of output harmonic wave of input power factor, and has the low advantage of thermal losses; The VVVF inverter has advantages such as speed-regulating range width, efficient height, dynamic property are good, has reached in the locomotive field widely to use.
Wireplint 25,26 is attached cable effectively, and prevents wearing and tearing.Control signal plug 27 adopts connector to connect, and is easy to change.
The main power consumption of current transformer comes from the loss that turns on and off of switching device, and these losses all show with the form of heat, and how efficiently radiates heat is the major issue that current transformer need be considered.The utility model cooling air blows into from the air inlet at current transformer top, through the shunting of part air channel dividing plate 23, blow over the radiator of three-phase diode rectifier 14 and inverter module 16 respectively, last cooling air is after the bottom, air channel is converged, air outlet by the cabinet right side blows out, and sees Fig. 9～Figure 11.The wiring of current transformer takes into full account control loop, detects the principle of loop, major loop apart arrangement, according to the main circuit principle, arrange each functional unit block according to current trend, main circuit mainly adopts busbar to connect, the power supply signal wiring is according to independent space cabling, input adopts shielding conductor, and each earth terminal is according to contact principle branch ground connection nearby.
The cabinet top is provided with suspension ring 13, makes things convenient for the installation of current transformer.
This high-power converter entrucking power is 3300kVA, and the rated output voltage of current transformer is AC1326V, and output-current rating is AC478A, and maximum output current is AC520A.The current transformer main circuit as shown in figure 12, pulling electric generator output winding is through two three-phase ac contactor 21(K1A, K1B,) cut apart after, by three-phase diode rectifier 14(CONA, CONB), C(is integrated in the inverter module by power capacitor filtering), output DC1700V voltage is through inverter module 16(INV1A, INV2A, INV3A, INV1B, INV2B, INV3B) inversion is that three-phase VVVF voltage is supplied with traction electric machine; The three-phase voltage that traction electric machine sends during the regenerative braking operating mode is after the inverter rectification, by the copped wave resistance release braking energy of current transformer outside.RST1 and RST2 are brake resistance, totally 6 groups, be used for when the pulling motor braking operating mode, consuming motor power, and can also be used for the overvoltage inhibition in intermediate dc loop and the repid discharge after the shutdown.Ground connection is detected resistance (being discharge cell 18) (R1A, R2A, R1B, R2B), and neutral earthing is used for the detection of current transformer main circuit ground connection, simultaneously with the discharge loop that fixes; VH1A, VH1B are voltage sensor, and VH2A, VH3A, VH2B, VH3B are voltage sensor, are respectively applied to detect current transformer DC loop half voltage and full voltage; VH4B is voltage sensor, is used for detecting the voltage at storage battery two ends; Intermediate dc contactor 22(BJ+, BJ-) closure when main generator starts, by 4# and 6# inverter (external CTS switching device) direct current of storage battery is converted into alternating current, to start main generator; LH1A and LH1B are current sensors, in order to detect the intermediate dc electric current; LH1A～LH6A, LH1B～LH6B are current sensor, in order to detect the size of current that inverter outputs to traction electric machine; LH7A～LH9A, LH7B～LH9B are current sensor, in order to detect the electric current that flows through brake resistance under braking or the copped wave operating mode; LH10B is current sensor, the electric current when being used for detecting with storage battery startup main generator.
Claims (6)
1. a diesel locomotive traction convertor comprises cabinet, it is characterized in that, described cabinet is divided into the identical front and back two parts of structure by the air channel; Described cabinet front portion is divided into the left and right sides by a middle vertical beam, is respectively equipped with four cavitys in the cabinet of the left and right sides; Discharge cell and high pressure warning lamp are fixedly arranged in the cavity of left side top, and each fixedly has an inverter module in two cavitys of left side central portion, fixedly has busbar and current sensor, left side to be provided with cabinet door A in the cavity of left bottom; In the cavity at top, right side motion control unit is arranged fixedly, in two cavitys of right side central three-phase diode rectifier and inverter module are arranged fixedly respectively; Fixedly have busbar, current sensor, the cavity at top, right side to be provided with cabinet door B outward in the cavity of bottom, right side, the cabinet of right side central and bottom is provided with cabinet door C outward; Dividing plate in the described air channel is divided into left and right sides two parts with described air channel; Cabinet left side and the right side of described dividing plate correspondence position are provided with air channel dividing plate door; Cooling blower is fixedly arranged at described cabinet top or bottom; Described cabinet one side is provided with two small box, and intermediate dc contactor, three-phase ac contactor, output busbar and wireplint are fixedly arranged in the described small box; Described cabinet one side is provided with air outlet.
2. diesel locomotive traction convertor according to claim 1 is characterized in that, described cabinet top is provided with suspension ring.
3. diesel locomotive traction convertor according to claim 1 is characterized in that, is equipped with handle on described cabinet door A, cabinet door B, the cabinet door C.
4. diesel locomotive traction convertor according to claim 1 is characterized in that, described cabinet right side is provided with the control signal plug.
5. diesel locomotive traction convertor according to claim 1 is characterized in that, described cabinet top is provided with for the fixing clamping plate of current transformer top cable.
6. diesel locomotive traction convertor according to claim 1 is characterized in that, on the middle vertical beam of described cabinet front and rear safety interlock switch is installed all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284936 CN203233317U (en) | 2013-05-22 | 2013-05-22 | Traction converter for diesel locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284936 CN203233317U (en) | 2013-05-22 | 2013-05-22 | Traction converter for diesel locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203233317U true CN203233317U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320284936 Expired - Fee Related CN203233317U (en) | 2013-05-22 | 2013-05-22 | Traction converter for diesel locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203233317U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104038081A (en) * | 2014-05-27 | 2014-09-10 | 株洲变流技术国家工程研究中心有限公司 | Rectifying cabinet |
| CN104953792A (en) * | 2014-03-25 | 2015-09-30 | 株洲南车时代电气股份有限公司 | Traction converter for low-floor vehicle |
| CN105048296A (en) * | 2015-07-09 | 2015-11-11 | 北京赛德高科铁道电气科技有限责任公司 | DC600V train power supply cabinet |
| CN106329948A (en) * | 2016-09-07 | 2017-01-11 | 株洲中车时代电气股份有限公司 | Mine-used electrical wheel autonomous dump truck traction converter |
| CN105048296B (en) * | 2015-07-09 | 2018-06-01 | 北京赛德高科铁道电气科技有限责任公司 | A kind of DC600V train power supplies cabinet |
| CN110797852A (en) * | 2019-10-12 | 2020-02-14 | 中车永济电机有限公司 | High-pressure protection system for diesel locomotive |
| CN112713748A (en) * | 2020-12-17 | 2021-04-27 | 中车永济电机有限公司 | Traction converter for outer corridor type diesel locomotive |
| CN114094798A (en) * | 2021-11-12 | 2022-02-25 | 株洲变流技术国家工程研究中心有限公司 | Traction converter of mining electric wheel dump truck |
-
2013
- 2013-05-22 CN CN 201320284936 patent/CN203233317U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953792A (en) * | 2014-03-25 | 2015-09-30 | 株洲南车时代电气股份有限公司 | Traction converter for low-floor vehicle |
| CN104953792B (en) * | 2014-03-25 | 2017-11-14 | 株洲南车时代电气股份有限公司 | A kind of low floor vehicle traction convertor |
| CN104038081A (en) * | 2014-05-27 | 2014-09-10 | 株洲变流技术国家工程研究中心有限公司 | Rectifying cabinet |
| CN104038081B (en) * | 2014-05-27 | 2017-04-26 | 株洲变流技术国家工程研究中心有限公司 | Rectifying cabinet |
| CN105048296B (en) * | 2015-07-09 | 2018-06-01 | 北京赛德高科铁道电气科技有限责任公司 | A kind of DC600V train power supplies cabinet |
| CN105048296A (en) * | 2015-07-09 | 2015-11-11 | 北京赛德高科铁道电气科技有限责任公司 | DC600V train power supply cabinet |
| CN106329948A (en) * | 2016-09-07 | 2017-01-11 | 株洲中车时代电气股份有限公司 | Mine-used electrical wheel autonomous dump truck traction converter |
| CN106329948B (en) * | 2016-09-07 | 2019-06-28 | 株洲中车时代电气股份有限公司 | A kind of mine electric wheel dump traction convertor |
| CN110797852A (en) * | 2019-10-12 | 2020-02-14 | 中车永济电机有限公司 | High-pressure protection system for diesel locomotive |
| CN112713748A (en) * | 2020-12-17 | 2021-04-27 | 中车永济电机有限公司 | Traction converter for outer corridor type diesel locomotive |
| CN112713748B (en) * | 2020-12-17 | 2022-04-26 | 中车永济电机有限公司 | Traction converter for outer corridor type diesel locomotive |
| CN114094798A (en) * | 2021-11-12 | 2022-02-25 | 株洲变流技术国家工程研究中心有限公司 | Traction converter of mining electric wheel dump truck |
| CN114094798B (en) * | 2021-11-12 | 2023-11-14 | 株洲变流技术国家工程研究中心有限公司 | Traction converter of mining electric wheel dumper |
| RU222936U1 (en) * | 2023-11-03 | 2024-01-24 | Общество с ограниченной ответственностью "Электро СИ" | VOLTAGE CONVERTER FOR MAIN DIESEL LOCOMOTIVE |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20200522 |