CN205097964U - Hand over straight electric locomotive braking energy feedback device - Google Patents
Hand over straight electric locomotive braking energy feedback device Download PDFInfo
- Publication number
- CN205097964U CN205097964U CN201520875535.3U CN201520875535U CN205097964U CN 205097964 U CN205097964 U CN 205097964U CN 201520875535 U CN201520875535 U CN 201520875535U CN 205097964 U CN205097964 U CN 205097964U
- Authority
- CN
- China
- Prior art keywords
- braking energy
- brachium pontis
- module
- energy feedback
- electric locomotive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a hand over straight electric locomotive braking energy feedback device, including boost module and contravariant module, boost module's input is connected with braking energy generating device's output, boost module's the output and the input of contravariant module are connected, and boost module steps up the electric energy that braking energy generating device produced, keep boost module's stabilization of output, the output and the train power supply network of contravariant module are connected, and with electric energy repayment to the train power supply network that braking energy generating device produced, the output and the train auxiliary power supply system of perhaps contravariant module are connected, and the electric energy that produces braking energy generating device supplies train other equipment to use. The utility model discloses can realize recycling of braking energy with locomotive braking energy repayment to electric wire netting, have the power output stably, electric energy high quality, advantages such as good reliability.
Description
Technical field
The utility model relates to the straight electric locomotive brake field of a kind of friendship, particularly relates to the straight electric locomotive braking energy feedback device of a kind of friendship.
Background technology
Rheostatic brake is a kind of braking mode that the straight electric locomotive of domestic friendship generally uses, and its groundwork is the invertibility utilizing traction electric machine to run, and generally can be divided into conventional resistive brake mode and back up resistive braking mode.When braking, traction motor changes electrical generator into, i.e. braking energy generating means, the inertia of train is utilized to generate electricity by taking turns the rotation of driving electric machine rotor, thus produce torque reaction to consume the kinetic energy of train, reach the object of braking, the electric current that motor produces then is dissipated with the form of heat energy by the special braking resistor arranged.Although rheostatic brake implementation method is simple, action effect reliable, its braking energy cannot carry out recycling, and needs powerful air cooler to provide heat radiation for resistance, increases energy consumption further.
Straight electric locomotive is handed over for SS4B.As shown in Figure 1, when electric locomotive needs to slow down, electric locomotive is converted to damped condition by traction working condition, and now traction motor is converted to electrical generator and by taking turns being electric energy by the kinetic energy of train, then by braking resistor, electric energy is converted to thermal energy consumption and falls.Now thyristor T5, T6 not conducting, motor, smoothing reactor, diode D3, D4 and braking resistor form electric loop, by regulating the excitation winding voltage of motor series connection, maintain the electric current substantially constant in braking resistor, at this moment braking energy is substantially converted into heat energy by resistance and is consumed, therefore not only not energy-conservation, also need get from drawing electric network on the contrary and can ensure that radiator fan normally works.
As shown in Figure 2, back up resistive braking is exactly for improving the wheel week braking force of locomotive when low cruise, absorbing electric energy, supply in the armature current of motor from electrical network, to obtain desirable wheel week braking force.When locomotive speed declines further, braking current possibly cannot maintain steady state value, at this moment by thyristor T5, T6 being triggered, applies a reverse voltage at brake circuit, thus it is constant to continue to maintain braking current, braking energy is still converted into thermal energy consumption in braking resistor.
Be no matter conventional brake or add feedback braking, braking energy all consumes on resistance, causes energy dissipation and thermal pollution.
Utility model content
The technical problems to be solved in the utility model is just: the technical matters existed for prior art, the utility model provides the friendship straight electric locomotive braking energy feedback device that a kind of power consumption is low, feedback electric energy quality is good, system reliability is high.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is: the straight electric locomotive braking energy feedback device of a kind of friendship, comprises boost module and inversion module; The input end of described boost module is connected with the mouth of braking energy generating means, the mouth of described boost module is connected with the input end of inversion module, the electric energy boosting that braking energy generating means produces by boost module, keeps the output voltage stabilization of boost module; The mouth of described inversion module is connected with train power supply electrical network, the electric energy feedback produced by braking energy generating means is to train power supply electrical network, or the mouth of inversion module is connected with train auxiliary power supply system, the electric energy produced by braking energy generating means is for train miscellaneous equipment.
As further improvement of the utility model, described boost module comprises boost pressure controller K1, booster diode D and electric capacity C; Described boost pressure controller K1 is in parallel with electric capacity C, and described booster diode D forward is connected between the positive pole of boost pressure controller K1 and the positive pole of electric capacity C.
As further improvement of the utility model, described boost pressure controller K1 comprises IGBT thyristor.
As further improvement of the utility model, described boost pressure controller K1 is Redundancy Design, comprises and composes in parallel boost pressure controller group by least two boost pressure controller K1; Described booster diode D is Redundancy Design, comprises and composes in parallel booster diode group by least two booster diode D.
As further improvement of the utility model, described inversion module is voltage source inverter.
As further improvement of the utility model, described voltage source inverter is single-phase full bridge structure, comprise the first brachium pontis Q1, second brachium pontis Q2, 3rd brachium pontis Q3 and four bridge legs Q4, described first brachium pontis Q1 connects with the second brachium pontis Q2, described 3rd brachium pontis Q3 connects with four bridge legs Q4, the upper end of described first brachium pontis Q1 is connected with a pole of described boost module mouth with after the upper end parallel connection of the 3rd brachium pontis Q3, the lower end of described second brachium pontis Q2 is connected with another pole of described boost module mouth with after the lower end parallel connection of four bridge legs Q4, the point of connection of described first brachium pontis Q1 and the second brachium pontis Q2, the point of connection of the 3rd brachium pontis Q3 and four bridge legs Q4 is connected with electrical network as the mouth of inverter, each brachium pontis described includes a brachium pontis controller K2, and described brachium pontis controller K2 comprises IGBT thyristor.
As further improvement of the utility model, described brachium pontis controller K2 is Redundancy Design, comprises and composes in parallel brachium pontis controller group by least two brachium pontis controller K2.
As further improvement of the utility model, also comprise a PWM controller, described PWM controller is connected with described boost module and inversion module, after controlling electric energy boosting that braking energy generating means produces by boost module and inversion module, be fed back to electrical network.
As further improvement of the utility model, also comprise an overcurrent protection resistance R, described overcurrent protection resistance R is connected between boost module two output ports.
As further improvement of the utility model, two braking energy feedback devices are connected with handing over the mouth of two braking energy generating meanss in parallel in straight electric locomotive respectively, and the electric energy feedback produced by two braking energy generating meanss is respectively to electrical network or for train miscellaneous equipment.
Compared with prior art, the utility model has the advantage of:
1, the electric energy feedback that produced under braking mode by traction electric machine by braking energy feedback device of the utility model is to electrical network, or feeds back to locomotive auxiliary power supply system, achieves the recycling of braking energy, is conducive to energy-saving and emission-reduction.
2, the utility model realizes the feedback of braking energy by voltage source inverter, and export stable electric power, the quality of power supply is high.
3, the utility model adopts mutiredundant design, and reliability is high, can the work of assurance device long-time stable.
Accompanying drawing explanation
Fig. 1 is SS4B type electric locomotive conventional brake operating mode circuit theory schematic diagram.
Fig. 2 is that the electric locomotive of SS4B type adds feedback damped condition circuit theory schematic diagram.
Fig. 3 is that the utility model hands over straight electric locomotive braking energy feedback device schematic diagram.
Fig. 4 is that the utility model hands over straight electric locomotive braking energy feedback device mutiredundant design schematic diagram.
Fig. 5 is that the utility model hands over straight electric locomotive braking energy feedback device parallel connection schematic diagram.
Detailed description of the invention
Below in conjunction with Figure of description and concrete preferred embodiment, the utility model is further described, but does not therefore limit protection domain of the present utility model.
As shown in Figure 3, in the present embodiment, the straight electric locomotive braking energy feedback device of a kind of friendship, comprises boost module and inversion module; The input end of boost module is connected with the mouth of braking energy generating means, and the mouth of boost module is connected with the input end of inversion module, and the electric energy boosting that braking energy generating means produces by boost module, keeps the output voltage stabilization of boost module; The mouth of inversion module is connected with train power supply electrical network, the electric energy feedback produced by braking energy generating means is to train power supply electrical network, or the mouth of inversion module is connected with train auxiliary power supply system, the electric energy produced by braking energy generating means is for train miscellaneous equipment.
In the present embodiment, braking energy generating means is the traction electric machine handing over straight electric locomotive, straight electric locomotive braking energy feedback device is handed over to be connected with traction electric machine by leading/making conversion drum, when leading/making conversion drum and be in traction state, traction electric machine is as engine installation, circuit breaker KM2 is communicated with, and being obtained the electric energy of electrical network by tractive winding, is that kinetic energy is to drive train by electric energy conversion; When leading/making conversion drum and be in braking mode, traction electric machine is converted into electrical generator, circuit breaker KM2 disconnects, and utilizing the inertia of train to drive the rotor of traction electric machine to rotate and generate electricity, is electric energy by kinetic transformation, and by boost module, electric energy is boosted, when voltage rises to predetermined voltage, by inversion module, direct current (DC) is converted to alternating current, feeds back to electrical network, or be supplied to the auxiliary power supply system of train, for other consumer of train.In the present embodiment, the output voltage of inversion module through the secondary limit winding a2-x2 of voltage transformer, by electric energy feedback to electrical network.
In the present embodiment, boost module comprises boost pressure controller K1, booster diode D and electric capacity C; Boost pressure controller K1 is in parallel with electric capacity C, and booster diode D forward is connected between the positive pole of boost pressure controller K1 and the positive pole of electric capacity C.Boost pressure controller K1 comprises IGBT thyristor, certainly, also can be the thyristor of other type with identical function.By providing suitable PWM drive pulse to boost pressure controller K1, the voltage of boost module input end being boosted, makes the voltage at electric capacity C two ends meet inversion module by the scheduled voltage required for electric energy feedback to electrical network.In the present embodiment, inversion module is voltage source inverter.This voltage source inverter is single-phase full bridge structure, comprise the first brachium pontis Q1, second brachium pontis Q2, 3rd brachium pontis Q3 and four bridge legs Q4, first brachium pontis Q1 connects with the second brachium pontis Q2, 3rd brachium pontis Q3 connects with four bridge legs Q4, the upper end of the first brachium pontis Q1 is connected with a pole of boost module mouth with after the upper end parallel connection of the 3rd brachium pontis Q3, the lower end of the second brachium pontis Q2 is connected with another pole of boost module mouth with after the lower end parallel connection of four bridge legs Q4, the point of connection of the first brachium pontis Q1 and the second brachium pontis Q2, the point of connection of the 3rd brachium pontis Q3 and four bridge legs Q4 is connected with electrical network as the mouth of inverter, each brachium pontis includes a brachium pontis controller K2, and brachium pontis controller K2 comprises IGBT thyristor, certainly, also can be the thyristor of other type with identical function.An inductance L and a circuit breaker KM1 is also in series with between the mouth of voltage source inverter and electrical network.
In the present embodiment, also comprise a PWM controller, PWM controller is connected with boost module and inversion module, after controlling electric energy boosting that braking energy generating means produces by boost module and inversion module, be fed back to electrical network.Also comprise an overcurrent protection resistance R, overcurrent protection resistance R is connected between boost module two output ports.
In the present embodiment, when braking mode, circuit breaker KM1 adhesive, circuit breaker KM2 disconnects, field voltage and armature voltage is provided to traction electric machine by the minimum braking level under corresponding speed, medium voltage is charged, when braking current starts boost pressure controller K1 lower than during 50A, by adjusting pulsewidth dutycycle, the charging current maintaining 50A charges (i.e. medium voltage) to electric capacity C, reach after 900 ~ 1000V until medium voltage, start the brachium pontis controller K2 of four brachium pontis, when middle voltage stabilization is after predetermined value, namely feedback braking is started, control booster circuit dutycycle by the braking current of the given each braking level of locomotive and do current constant control, keep energy equilibrium, the brachium pontis controller K2 of four brachium pontis keeps medium voltage and the prospective current feedback energy by corresponding given braking current, it should be noted that, the size of current of charging to electric capacity C and the size of medium voltage, can adjust according to actual working state.During system works, traction electric machine is as electrical generator, and electric current is from traction electric machine anode, through lead/make conversion drum dog point, be divided into two-way afterwards, namely through K1, again through D4, D3 afterflow, turn back to traction electric machine negative terminal, this part is the braking current producing pulling motor braking power, is permanent direct current; Another part rouses dog point through leading/making conversion, through booster diode D, and the first brachium pontis Q1, secondary limit winding a2-x2, four bridge legs Q4, then through D4, D3 afterflow, turn back to traction electric machine negative terminal, or through booster diode D, the 3rd brachium pontis Q3, secondary limit winding x2-a2, second brachium pontis Q2, then through D4, D3 afterflow, turn back to traction electric machine negative terminal, this part is feedback current, and the size of its electric current changes according to motor actual power power.
In the present embodiment; the parameter such as braking current and inverter current of intermediate voltage value, traction electric machine is detected; when arbitrary parameter exceeds preset value; by blocking the pulse of the pulse of boost pressure controller K1 and the brachium pontis controller K2 of inversion module four brachium pontis in traction electric machine excitation, boost module; discharged by resistance R, thus realize the protection to energy back feed device.Simultaneously, in the present embodiment, all Redundancy Design is adopted to Primary Component, as shown in Figure 4, boost pressure controller K1 composes in parallel boost pressure controller group by least two boost pressure controller K1, and booster diode D composes in parallel booster diode group by least two booster diode D; Brachium pontis controller K2 composes in parallel brachium pontis controller group by least two brachium pontis controller K2.
In the present embodiment, as shown in Figure 5, for SS4B locomotive, a joint locomotive has two voltage transformers usually, and each voltage transformer has two traction electric machines, namely a joint car has 4 traction electric machines, SS4B locomotive adopts two joint car weight connection, and namely a row locomotive has 8 traction electric machines, and each traction electric machine configures a braking energy feedback device, misphase can be realized control, to improve the quality of feedback electric energy.The braking energy feedback device of single transformer adopts mode in parallel, its topological structure is: two braking energy feedback devices are connected with handing over the mouth of two braking energy generating meanss in parallel in straight electric locomotive respectively, and the electric energy feedback produced by two braking energy generating meanss is respectively to electrical network or for train miscellaneous equipment.
Above-mentioned just preferred embodiment of the present utility model, not does any pro forma restriction to the utility model.Although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model.Therefore, every content not departing from technical solutions of the utility model, according to the utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solutions of the utility model protection.
Claims (10)
1. hand over a straight electric locomotive braking energy feedback device, it is characterized in that: comprise boost module and inversion module; The input end of described boost module is connected with the mouth of braking energy generating means, the mouth of described boost module is connected with the input end of inversion module, the electric energy boosting that braking energy generating means produces by boost module, keeps the output voltage stabilization of boost module; The mouth of described inversion module is connected with train power supply electrical network, the electric energy feedback produced by braking energy generating means is to train power supply electrical network, or the mouth of inversion module is connected with train auxiliary power supply system, the electric energy produced by braking energy generating means is for train miscellaneous equipment.
2. friendship according to claim 1 straight electric locomotive braking energy feedback device, is characterized in that: described boost module comprises boost pressure controller K1, booster diode D and electric capacity C; Described boost pressure controller K1 is in parallel with electric capacity C, and described booster diode D forward is connected between the positive pole of boost pressure controller K1 and the positive pole of electric capacity C.
3. friendship according to claim 2 straight electric locomotive braking energy feedback device, is characterized in that: described boost pressure controller K1 comprises IGBT thyristor.
4. friendship according to claim 3 straight electric locomotive braking energy feedback device, is characterized in that: described boost pressure controller K1 is Redundancy Design, comprises and composes in parallel boost pressure controller group by least two boost pressure controller K1; Described booster diode D is Redundancy Design, comprises and composes in parallel booster diode group by least two booster diode D.
5. friendship according to claim 1 straight electric locomotive braking energy feedback device, is characterized in that: described inversion module is voltage source inverter.
6. friendship according to claim 5 straight electric locomotive braking energy feedback device, it is characterized in that: described voltage source inverter is single-phase full bridge structure, comprise the first brachium pontis Q1, second brachium pontis Q2, 3rd brachium pontis Q3 and four bridge legs Q4, described first brachium pontis Q1 connects with the second brachium pontis Q2, described 3rd brachium pontis Q3 connects with four bridge legs Q4, the upper end of described first brachium pontis Q1 is connected with a pole of described boost module mouth with after the upper end parallel connection of the 3rd brachium pontis Q3, the lower end of described second brachium pontis Q2 is connected with another pole of described boost module mouth with after the lower end parallel connection of four bridge legs Q4, the point of connection of described first brachium pontis Q1 and the second brachium pontis Q2, the point of connection of the 3rd brachium pontis Q3 and four bridge legs Q4 is connected with electrical network as the mouth of inverter, each brachium pontis described includes a brachium pontis controller K2, and described brachium pontis controller K2 comprises IGBT thyristor.
7. friendship according to claim 6 straight electric locomotive braking energy feedback device, is characterized in that: described brachium pontis controller K2 is Redundancy Design, comprises and composes in parallel brachium pontis controller group by least two brachium pontis controller K2.
8. the straight electric locomotive braking energy feedback of the friendship according to any one of claim 1 to 7 device, it is characterized in that: also comprise a PWM controller, described PWM controller is connected with described boost module and inversion module, after controlling electric energy boosting that braking energy generating means produces by boost module and inversion module, be fed back to electrical network.
9. friendship according to claim 8 straight electric locomotive braking energy feedback device, is characterized in that: also comprise an overcurrent protection resistance R, and described overcurrent protection resistance R is connected between boost module two output ports.
10. friendship according to claim 9 straight electric locomotive braking energy feedback device, it is characterized in that: two braking energy feedback devices are connected with handing over the mouth of two braking energy generating meanss in parallel in straight electric locomotive respectively, and the electric energy feedback produced by two braking energy generating meanss is respectively to electrical network or for train miscellaneous equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875535.3U CN205097964U (en) | 2015-11-05 | 2015-11-05 | Hand over straight electric locomotive braking energy feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875535.3U CN205097964U (en) | 2015-11-05 | 2015-11-05 | Hand over straight electric locomotive braking energy feedback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205097964U true CN205097964U (en) | 2016-03-23 |
Family
ID=55513773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520875535.3U Active CN205097964U (en) | 2015-11-05 | 2015-11-05 | Hand over straight electric locomotive braking energy feedback device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205097964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238029A (en) * | 2016-12-26 | 2018-07-03 | 南通曙光机电工程有限公司 | The braking system of high ferro EMU |
-
2015
- 2015-11-05 CN CN201520875535.3U patent/CN205097964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238029A (en) * | 2016-12-26 | 2018-07-03 | 南通曙光机电工程有限公司 | The braking system of high ferro EMU |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101425771B (en) | Control circuit, braking method, energy production method and device for DC motor | |
| CN101599710B (en) | Monopole inverter capable of boosting voltage | |
| CN103023344A (en) | Universal smart grid power electronic device | |
| CN105235546B (en) | A kind of pure electronic AC Drive shunter electrical main drive system of 1000kW power grades | |
| CN201956961U (en) | Energy feedback device based on power unit cascade type high voltage frequency converter | |
| CN103754124A (en) | Control system for electricity hybrid pure electric city-bus | |
| WO2012151935A1 (en) | Safety protection-type power supply system | |
| CN101399459A (en) | Controllable voltage regulating method for permanent magnet electricity generator and apparatus thereof | |
| CN104973472A (en) | Energy saving device and method for dispatching of regenerated electric energy of clustering elevators through direct-current micro-grid | |
| CN106787086A (en) | A kind of pair of PWM permanent magnetism power-driven system and its control method | |
| CN103944439A (en) | Two-motor driving type cascading multi-level inverter system without active front end and control method thereof | |
| CN102139823A (en) | Solar photovoltaic (PV) elevator control system with bidirectional power flow | |
| CN205097964U (en) | Hand over straight electric locomotive braking energy feedback device | |
| CN101789633B (en) | Electric hoist energy storing device based on ultra capacitor | |
| CN104401335A (en) | Main driving system of hybrid power locomotive | |
| CN104883103A (en) | Composite circuit integrating rectification, active filtering and energy consumption braking and control method thereof | |
| CN103754119B (en) | The straight electric locomotive brake unit of a kind of friendship | |
| CN201201829Y (en) | Energy resource feedback system for elevator | |
| CN108649856B (en) | Doubly salient electro-magnetic motor function feedback system and control method | |
| CN207630977U (en) | A kind of auxiliary power supply circuit, dumper power supply circuit | |
| CN206759350U (en) | A kind of shutdown decompression protection device of permagnetic synchronous motor | |
| CN202841050U (en) | Cascaded high-voltage inverter speed regulating system with energy feedback function | |
| CN104795879A (en) | Embedded frequency-conversion potential energy recycling system for port crane | |
| CN202046766U (en) | Solar photovoltaic elevator control system | |
| CN205423064U (en) | Wind power generation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |