CN207630977U - A kind of auxiliary power supply circuit, dumper power supply circuit - Google Patents
A kind of auxiliary power supply circuit, dumper power supply circuit Download PDFInfo
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- CN207630977U CN207630977U CN201721741734.0U CN201721741734U CN207630977U CN 207630977 U CN207630977 U CN 207630977U CN 201721741734 U CN201721741734 U CN 201721741734U CN 207630977 U CN207630977 U CN 207630977U
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- power supply
- supply circuit
- dumper
- circuit
- auxiliary power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The utility model is related to dumper field, a kind of auxiliary power supply circuit, dumper power supply circuit are disclosed.Auxiliary power supply circuit includes sequentially connected inverter bridge, transformer, rectifier bridge, filtering voltage regulation capacitance and inverter module, and the input terminal parallel connection of the inverter bridge accesses the intermediate dc circuit of current transformer, and the inverter module is connect with cooling blower.By changing auxiliary power supply circuit design, so that dumper is under electric braking operating mode, wind turbine is all powered by intermediate dc circuit, and the energy in the intermediate dc circuit then braking energy all from alternating-current actuating system under electric braking operating mode, this power supply circuit is easy to Project Realization, dumper electric braking operating mode capacity usage ratio is greatly improved, save fuel oil, reduce discharge and reduce noise etc., effectively increase economic benefit.
Description
Technical field
The utility model is related to dumper fields, power more particularly, to a kind of auxiliary power supply circuit, dumper electric
Road.
Background technology
In the dumper dynamical system of diesel engine-generator-current transformer-traction electric machine-braking resistor composition, electric braking
Energy almost all is consumed by braking resistor in the form of heat, and the significant wastage of this portion of energy, Brake Energy are caused
It is relatively low to measure utilization rate.Current transformer generally includes rectifier and inverter, and rectifier is connect by intermediate dc circuit with inverter.
As shown in Figure 1, the traditional radiating mode of dumper is then to carry a big aerofoil fan or two by generator
Aerofoil fan is traction electric machine, generator and current transformer provide cooling wind, no matter under traction working condition or damped condition, all by
Generator provides energy, and this portion of energy is all from diesel engine.
Utility model content
The utility model is at least one defect overcome described in the above-mentioned prior art, provides a kind of raising braking energy profit
With rate, auxiliary power supply circuit at low cost.
A kind of auxiliary power supply circuit is provided, sequentially connected inverter bridge, transformer, rectifier bridge, filtering voltage regulation capacitance and
Inverter module, the intermediate dc circuit of the input terminal parallel connection access dumper current transformer of the inverter bridge, the inverter mould
Block is connect with cooling blower.
In the present solution, being reverse into alternating voltage to the DC voltage of intermediate DC loop by inverter bridge, pass through transformer
Decompression isolation processing is carried out, then by rectifier bridge rectification, steady dc voltage is provided after capacitor filtering voltage stabilizing to inversion
Device module, inverter module control cooling blower cool down the power component of dumper.The design of this auxiliary power supply circuit
The power component cooling blower energy for changing dumper in the prior art comes from diesel engine entirely so that the Brake Energy of dumper
It has measured and has efficiently used.
Further, intermediate dc circuit includes chopper and braking resistor, after chopper and braking resistor are serially connected,
Parallel connection access intermediate dc circuit.The intermediate dc circuit adjusts the big of Duty ratio control braking resistor power by chopper
It is small.
Further, the inverter module is equipped with 5, in parallel with filtering voltage regulation capacitance, 5 inverter modules it is defeated
Outlet is separately connected two cooling blowers, traction electric machine cooling blower, current transformer cooling blower and the diesel engine of braking resistor
Cooling blower.
The another object of the utility model is, provides a kind of dumper power supply electricity applying above-mentioned auxiliary power supply circuit
Road, the intermediate dc circuit of the input terminal parallel connection access dumper current transformer of the inverter bridge of the auxiliary power supply circuit.Dumper
For traction working condition when, middle dc voltage controls wind turbine, according to traction power after inversion-decompression-rectification by inverter module
Size cooling blower rotating speed is adjusted in real time；When dumper is electric braking operating mode, middle dc voltage is through inversion-drop
After pressure-rectification, wind turbine is controlled by inverter module, cooling blower rotating speed is adjusted in real time according to the size of braking power.
In the present solution, three-phase alternating current is generated by diesel-electric machine, through the rectifier rectification Cheng Zhi in current transformer
Intermediate dc circuit is accessed after galvanic electricity, then variable-frequency variable-voltage control is carried out to traction electric machine by inverter.Current transformer is according to self-unloading
The conversion that vehicle actual condition demand is drawn and braked.Traction working condition, that is, traction electric machine is in electric motor mode, traction electric machine
It is provided by diesel engine with the motive power of cooling blower power supply, wherein cooling blower is powered by inverter module, according to leading
Draw the size of power, rotation speed of fan is adjusted in variable-frequency variable-voltage.Damped condition, that is, traction electric machine is in generator mode, system
Energy goes back to intermediate dc circuit through inverter fed, then portion of energy therein is supplied to cooling blower.In damped condition
Under, the energy in the auxiliary power supply circuit is directly from intermediate dc circuit, through inverter bridge inversion, transformer pressure-reducing, rectified again
After bridge rectification, the three-phase alternating current of variable ratio frequency changer transformation is converted by inverter module, to diesel engine cooling wind turbine, braking resistor
Cooling blower, traction electric machine cooling blower and current transformer cooling blower etc. are powered.Rotation speed of fan is controlled by inverter module,
Frequency control can be realized to wind turbine according to the size of braking power.This auxiliary circuit structure can realize energy-saving and noise-reducing, raising department
Multiply the comfort level of personnel.Braking resistor series connection chopper after be incorporated in intermediate dc circuit, chopper by adjust duty ratio come
Control the size of braking resistor power.Under damped condition, braking energy returns to intermediate dc circuit, most of braking energy quilt
Braking resistor is dissipated in the form of heat, and another part energy is supplied to diesel engine cooling wind turbine, system through auxiliary power supply circuit
Dynamic resistance cooling blower, traction electric machine cooling blower and current transformer cooling blower etc., the power of these components consumption no longer comes from
Diesel engine, but come from traction electric machine.
Compared with prior art, the beneficial effects of the utility model are：
By changing auxiliary power supply circuit design so that dumper is under electric braking operating mode, and cooling blower is all by centre
DC loop is powered, and the energy in the intermediate dc circuit then system all from alternating-current actuating system under damped condition
Energy, this power supply circuit are easy to Project Realization, and greatly improve dumper damped condition capacity usage ratio, saving fuel oil,
Reduce discharge and reduce noise etc., effectively increase economic benefit.
Description of the drawings
Fig. 1 is the power supply circuit principle schematic of existing dumper.
Fig. 2 is the utility model dumper power supply circuit principle schematic.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to more preferably illustrate that the present embodiment, the certain components of attached drawing have omission, zoom in or out, actual product is not represented
Size；To those skilled in the art, the omitting of some known structures and their instructions in the attached drawings are understandable.
For the ordinary skill in the art, can be understood with concrete condition above-mentioned term the utility model concrete meaning.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Fig. 2, the present embodiment provides a kind of dumper power supply circuit, including sequentially connected diesel engine, generator
And current transformer, current transformer include rectifier and inverter, rectifier is connected with inverter by intermediate dc circuit；The present embodiment
There are two middle inverter is set, it is connect respectively with traction electric machine 1 and traction electric machine 2；Further comprise auxiliary power supply circuit.Auxiliary power supply
Circuit includes sequentially connected inverter bridge H1 bridges, transformer, rectifier bridge H2 bridges, capacitance C3 and inverter module, the inversion
The intermediate dc circuit of the input terminal parallel connection access dumper current transformer of bridge, the inverter module are connect with cooling blower.
Access intermediate dc circuit after braking resistor R1 and braking resistor R2 connects with chopper respectively.Inverter module is set
There are 5, in parallel with capacitance C3, the output end of 5 inverter modules is separately connected the cooling blower M3 of braking resistor, cooling wind
Machine M4, traction electric machine cooling blower M5, current transformer cooling blower M6 and diesel engine cooling wind turbine M7.
The operation principle of the present embodiment is as follows.
The intermediate dc circuit that H1 bridge inverter parallel connections are accessed to current transformer, is reverse into single-phase alternating current, then through H1 bridges
Electrical isolation and decompression are carried out by transformer, the secondary side of transformer accesses H2 bridge inverters, single-phase alternating current is rectified into directly
Stream, DC loop then access the input terminal of inverter module, DC loop shunt capacitance C3, to keep input inverter module
The stabilization of DC voltage, enables inverter module to work normally.
Dumper is under traction working condition, diesel engine cooling wind turbine, current transformer cooling blower and traction electric machine cooling blower etc.
Motive power is provided by diesel engine, it is powered by generator.Corresponding inverter module is according to traction power need
The size asked is powered wind turbine by adjusting the voltage and frequency of three-phase alternating current.At this point, traction electric machine is motor
Operating mode, driving dumper advance.
Dumper diesel engine cooling wind turbine, braking resistor cooling blower, current transformer cooling blower and is led under damped condition
Draw the driving power of the motor cooling blower then intermediate dc circuit from current transformer, the energy in intermediate dc circuit is by drawing
The kinetic energy of dumper is converted into electric energy by motor and inverter, and intermediate dc circuit is given through inverter fed.It is corresponding inverse
Become device module to be powered wind turbine by the voltage and frequency of adjusting three-phase alternating current according to the size of braking power demand,
Adjust the rotating speed of wind turbine.At this point, traction electric machine is the operating mode of generator, dumper is made to slow down.
Cooling blower is powered in damped condition by auxiliary power supply circuit, is controlled using inverter module so that wind
Machine can adjust rotating speed in real time according to the size of dumper braking power；Meanwhile when system is in damped condition, traction electric machine and
Dumper kinetic energy is converted into electric energy and returns to intermediate dc circuit through inverter by inverter, and most of braking energy is braked resistance
It is dissipated in the form of heat, another part energy is then supplied to diesel engine cooling wind turbine, braking resistor through auxiliary power supply circuit
Cooling blower 1, braking resistor cooling blower 2, traction electric machine cooling blower and current transformer cooling blower etc., to realize braking energy
Recycling.In short, capacity usage ratio when the application can greatly improve dumper braking, reduces the consumption of diesel engine fuel oil, carries
High economic benefit realizes the energy-saving and noise-reducing of wind turbine, improves driver and conductor's comfort level.
The dumper power supply circuit of the present embodiment is the new-type circuit that a kind of electric braking energy recycles, which exists
Under dumper electric braking operating mode, the power that cooling blower is consumed can reduce the output work of diesel engine directly from braking power
Rate achievees the purpose that oil-saving discharging-reducing.
The same or similar label correspond to the same or similar components in attached drawing；Position relationship described in attached drawing is only used for
Exemplary illustration should not be understood as the limitation to this patent.Obviously, above-described embodiment of the utility model is only for clearly
Illustrate the utility model example, and is not the restriction to the embodiment of the utility model.For fields
For those of ordinary skill, other different forms of changes or modifications may be made based on the above description.Here without
It needs also be exhaustive all embodiments.It is made within the spirit and principle of the present invention any to repair
Change, equivalent replacement and improvement etc., should be included within the utility model scope of the claims.
Claims (4)
1. a kind of auxiliary power supply circuit, which is characterized in that including sequentially connected inverter bridge, transformer, rectifier bridge, filtering voltage regulation
Capacitance and inverter module, the intermediate dc circuit of the input terminal parallel connection access dumper current transformer of the inverter bridge are described
Inverter module is connect with cooling blower.
2. auxiliary power supply circuit according to claim 1, which is characterized in that the intermediate dc circuit includes chopper and system
After dynamic resistance, chopper and braking resistor are serially connected, parallel connection access intermediate dc circuit.
3. auxiliary power supply circuit according to claim 2, which is characterized in that the inverter module be equipped with 5, with filtering
Electric capacity of voltage regulation is in parallel, and the output end of 5 inverter modules is separately connected two cooling blowers of braking resistor, traction electric machine cooling
Wind turbine, current transformer cooling blower and diesel engine cooling wind turbine.
4. a kind of dumper power supply circuit applying auxiliary power supply circuit described in 1 to 3 any one of the claims, described
The intermediate dc circuit of the input terminal parallel connection access dumper current transformer of the inverter bridge of auxiliary power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721741734.0U CN207630977U (en) | 2017-12-14 | 2017-12-14 | A kind of auxiliary power supply circuit, dumper power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721741734.0U CN207630977U (en) | 2017-12-14 | 2017-12-14 | A kind of auxiliary power supply circuit, dumper power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207630977U true CN207630977U (en) | 2018-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721741734.0U Active CN207630977U (en) | 2017-12-14 | 2017-12-14 | A kind of auxiliary power supply circuit, dumper power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207630977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032734A (en) * | 2017-12-14 | 2018-05-15 | 株洲联诚集团控股股份有限公司 | A kind of auxiliary power supply circuit, dumper power supply circuit and its control method |
| CN110758118A (en) * | 2019-11-18 | 2020-02-07 | 中车大连机车车辆有限公司 | System with expansion brake resistor device in diesel locomotive and use method thereof |
-
2017
- 2017-12-14 CN CN201721741734.0U patent/CN207630977U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032734A (en) * | 2017-12-14 | 2018-05-15 | 株洲联诚集团控股股份有限公司 | A kind of auxiliary power supply circuit, dumper power supply circuit and its control method |
| CN110758118A (en) * | 2019-11-18 | 2020-02-07 | 中车大连机车车辆有限公司 | System with expansion brake resistor device in diesel locomotive and use method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230615 Address after: No. 66 and 68 Liancheng Road, Shifeng District, Zhuzhou City, Hunan Province, 412000 Patentee after: HUNAN LINCE ROLLING STOCK EQUIPMENT Co.,Ltd. Address before: 412000 Hunan Province, Zhuzhou Shifeng District Tian Xin North Gate Patentee before: ZHUZHOU LINCE GROUP Co.,Ltd. |