CN206487580U - Exchange diesel engine of diesel locomotive variable frequency starting circuit is realized based on four quadrant convertor - Google Patents
Exchange diesel engine of diesel locomotive variable frequency starting circuit is realized based on four quadrant convertor Download PDFInfo
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- CN206487580U CN206487580U CN201620836880.0U CN201620836880U CN206487580U CN 206487580 U CN206487580 U CN 206487580U CN 201620836880 U CN201620836880 U CN 201620836880U CN 206487580 U CN206487580 U CN 206487580U
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- quadrant convertor
- current transformer
- diesel engine
- variable frequency
- main generator
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Abstract
The utility model is related to diesel locomotive electric drive system technical field, it is especially a kind of that exchange diesel engine of diesel locomotive variable frequency starting circuit is realized based on four quadrant convertor, the three-phase alternating current electric rectification that main generator is sent is output to intermediate DC link by four quadrant convertor, and four quadrant convertor exports DC link voltage inversion to main generator for opening machine；Four quadrant convertor, 3 tunnel copped wave bridge arms driving traction electric machine work 2,3, the 4th copped wave bridge arm regulation voltage and current of 6 drag current transformer modules are exported to power battery charging in drag current transformer module, 1,4, the 4th copped wave bridge arm of 5 drag current transformer modules adjust power consumption to braking resistor；Smoothing reactor, pre-charge resistance and contactor are provided between four quadrant convertor electrokinetic cell and drag current transformer module.The utility model need not increase the startup conversion equipment such as change-over switch CTS and high-power contactor, and it is more rapid and easy to open machine using electrokinetic cell high voltage.
Description
Technical field
The utility model is related to diesel locomotive electric drive system technical field, especially a kind of real based on four quadrant convertor
Now exchange diesel engine of diesel locomotive variable frequency starting circuit.
Background technology
Diesel engine of diesel locomotive, which opens machine mode, substantially has electric notor to start, air motor starts, inverter variable frequency starting three
Kind.
Electric notor starts, i.e., using controlling battery 74V or 110V DC driven direct current starter motor to operate, pass through gear
Case or big disk drive diesel engine rotation, until diesel engine speed reaches ignition rotating speed, complete the startup of diesel engine.This mode
It is simple and easy to apply, but mechanical link is more, and motor service life is short, and the requirement to control battery is higher, has been not suitable for exchange and has passed
The auxiliary integrated developing direction of motivation car owner.
Air motor starts, i.e., using the operating of compressed air-driven air motor, drive diesel engine to revolve by drive mechanism
Turn, until diesel engine speed reaches ignition rotating speed, complete the startup of diesel engine.This mode needs compressed air as power,
When total reservoir insufficient pressure, it is necessary to first using direct current air compressor machine work supplement compressed air, poor real, mechanical link compared with
Many, motor and reservoir volume are big, are also not suitable for the major-minor integrated developing direction of AC drive locomotive.
Inverter variable frequency starting, that is, open the machine stage using controlling 74V the or 110V DC voltages of battery to provide excitation, together
When will control battery tension be loaded into intermediate DC link, by drag current transformer module export three-phase alternating current, be loaded into master
Generator output end, now main generator make motor and use, drag current transformer module frequency conversion voltage adjusting coordinate excitation controller, drive
Dynamic main generator rotation, until diesel engine speed reaches ignition rotating speed, then disconnects the control of drag current transformer module, now main hair
Motor makees generator and used, and this mode saves the mechanical structure of complexity, and volume-diminished meets the major-minor one of AC drive locomotive
The developing direction of change, but need to increase the startup other equipment such as change-over switch CTS and high-power contactor, while being stored using control
Start battery voltage is relatively low, is difficult to start.
Utility model content
In order to overcome the shortcomings of existing technology, the utility model is provided a kind of realized based on four quadrant convertor and exchanged
The circuit of diesel engine of diesel locomotive variable frequency starting.
The utility model solves the technical scheme that its technical problem used：
One kind is realized based on four quadrant convertor exchanges diesel engine of diesel locomotive variable frequency starting circuit, including main generator,
Excitation control loop, main variable flow cabinet, electrokinetic cell and load equipment, excitation control loop include Automatic Excitation Controller, excitation
Include four quadrant convertor, several drag current transformer modules and auxiliary converter in transformer and control battery, main variable flow cabinet
Device module, load equipment includes several traction electric machines, one group of braking resistor and auxiliary transformer.
According to another embodiment of the present utility model, further comprise, described main generator connection contactor K1 one end,
The K1 other ends connect four quadrant convertor and exciting transformer, exciting transformer connection Automatic Excitation Controller, automatic magnetic exciting control
Another input connection control battery of device processed, the output end of Automatic Excitation Controller connects the excitation input end of main generator.
According to another embodiment of the present utility model, further comprise, the four quadrant convertor sends out main generator
The three-phase alternating current electric rectification gone out is output to intermediate DC link, is worked for drag current transformer module and auxiliary current transformer module, together
When four quadrant convertor DC link voltage inversion can be exported to main generator and to be used for opening machine.
According to another embodiment of the present utility model, further comprise, 3 tunnel copped wave bridge in the drag current transformer module
Arm driving traction electric machine work, the 4th copped wave bridge arm of 2#, 3#, 6# drag current transformer modules adjust voltage and current export to
Power battery charging, the 4th copped wave bridge arm of 1#, 4#, 5# drag current transformer modules adjusts power consumption to braking resistor；Institute
State and smoothing reactor L1, pre-charge resistance R1 and contactor K2, K3, K4 are provided between electrokinetic cell and drag current transformer module.
The beneficial effects of the utility model are that the machine mode that opens of this circuit realiration saves complicated mechanical structure, simplifies multiple
Miscellaneous opens electromechanical road, it is not necessary to which increase starts the conversion equipment such as change-over switch CTS and high-power contactor, reduces Qi Jipei and is arranged
Apply, be easy to global optimization space layout, will be more rapid and easy while opening machine using the high voltage of electrokinetic cell, also comply with friendship
Spread the auxiliary integrated developing direction of motivation car owner.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is circuit theory diagrams of the present utility model.
1, main generator in figure, 2, excitation control loop, 21, Automatic Excitation Controller, 22, exciting transformer, 23, control
Battery, 3, main variable flow cabinet, 31, four quadrant convertor, 32, drag current transformer module, 33, auxiliary current transformer module, 4, power
Battery, 5, load equipment, 51, traction electric machine, 52, braking resistor, 53, auxiliary transformer.
Embodiment
If Fig. 1 is structural representation of the present utility model, one kind realizes exchange diesel locomotive bavin based on four quadrant convertor
Oil machine variable frequency starting circuit, including main generator 1, excitation control loop 2, main variable flow cabinet 3, electrokinetic cell 4 and load equipment 5,
Excitation control loop 2 is included to be included in Automatic Excitation Controller 21, exciting transformer 22 and control battery 23, main variable flow cabinet 3
Four quadrant convertor 31, several drag current transformer modules 32 and auxiliary current transformer module 33, load equipment 5 are led including several
Draw motor 51, one group of braking resistor 52 and auxiliary transformer 53.The connection contactor K1 of main generator 1 one end, the connection of the K1 other ends
Four quadrant convertor 31 and exciting transformer 22, the connection Automatic Excitation Controller 21 of exciting transformer 22, Automatic Excitation Controller
21 another input connection control batteries 23, the excitation input of the output end connection main generator 1 of Automatic Excitation Controller 21
End.The three-phase alternating current electric rectification that main generator 1 is sent is output to intermediate DC link by four quadrant convertor 31, for traction current transformation
Device module 32 and auxiliary current transformer module 33 work, while four quadrant convertor 31 can export DC link voltage inversion
Used to main generator 1 for opening machine.
3 tunnel copped wave bridge arms driving traction electric machine 51 works in drag current transformer module 32,2#, 3#, 6# traction convertors
The 4th copped wave bridge arm regulation voltage and current of module is exported to power battery charging, 1#, 4#, 5# drag current transformer modules 32
The 4th copped wave bridge arm adjust power consumption in braking resistor 52；Provided with flat between electrokinetic cell 4 and drag current transformer module 32
Wave reactor L1, pre-charge resistance R1 and contactor K2, K3, K4.
Main generator is connected with diesel engine output end, after diesel engine normal work, driving main generator output three-phase alternating current
Voltage provides power source to locomotive, and in the utility model, main generator 1 on startup, is used as motor, is driven in turn
Dynamic diesel engine is rotated, until diesel engine reaches ignition rotating speed, is completed the startup of diesel engine, is then switched to generator operating mode.
Excitation control loop includes Automatic Excitation Controller 21 and the two parts of exciting transformer 22, Automatic Excitation Controller 21
Two kinds of power supply modes are inputted with exchange input and direct current, Automatic Excitation Controller 21 can be exported according to default main generator
Frequency-voltage relationship, chop control exciting current, closed loop adjusts the output voltage of main generator, particularly in startup stage, root
According to diesel engine speed, excitation size is rationally determined so that accelerating torque is optimal；Opening the machine stage, Automatic Excitation Controller 21 makes
Powered with locomotive storage batteries 23；After the completion of diesel engine opens machine, three intersected what main generator 1 was exported using exciting transformer 22
Stream decompression, is used for Automatic Excitation Controller 21.
The uncontrollable rectification module that the original locomotive of four quadrant convertor replacement is used is key of the present utility model.Opening machine
Stage, the high voltage of electrokinetic cell 4 is input to intermediate DC link, and four quadrant convertor 31 exports DC tache voltage inversion
To main generator 1, frequency conversion drive main generator 1 is rotated, while controlling the communication of 21 devices, reasonable computation inversion frequency with automatic magnetic exciting
Rate；After the completion of diesel engine opens machine, four quadrant convertor 31 will turn into rectification operating mode, the three-phase alternating current that main generator 1 is sent,
Through the rectification of four quadrant convertor 31, export to DC link.
The utility model is provided with 6 drag current transformer module 32 1#, #2#, 3#, 4#, 5#, 6# and 1 auxiliary converter altogether
Device module 7#.6 drag current transformer modules 32 are used to drive 6 traction electric machine work, by the voltage inversion of intermediate DC link
Into the three-phase alternating current of needs, driving traction electric machine work；While the 4th road and bridge arm chopper regulation voltage of 1#, 4#, 5# inverter,
It is output in braking resistor 52, consumption excess energy or repid discharge；And the 4th road and bridge arm chopper regulation of 2#, 3#, 6# inverter
Voltage, exports the battery charging to electrokinetic cell 4.
Also one 7# of auxiliary current transformer module module 33, the voltage of intermediate DC link is reverse into the three-phase of needs
Exchange, driving AuCT 33 works.
Electrokinetic cell 4 is another power source of hybrid locomotrives, and the energy is provided to locomotive when diesel engine does not work.When
When being operated in charge mode, contactor K4 and K3 are closed first, and drag current transformer module copped wave exports the voltage of demand voltage value,
Filtered through smoothing reactor, precharged resistance current limliting is pre-charged to electrokinetic cell 4；After charging current reaches initial value, close
Splice grafting tentaculum K2, carries out quick charge.When being operated in discharge mode, contactor K2, K3 and K4 closure, drag current transformer module
Directly open-minded, the voltage of electrokinetic cell 4 is directly output to DC link, is used for load.
The control concrete mode of the utility model circuit is as follows：
Contactor K1 is closed, contactor K3 and K4 is closed, timing closing contactor K2 enables the work of Automatic Excitation Controller 21
Make opening machine excitation mode, four quadrant convertor 31 is operated in inverter mode, coordinates Automatic Excitation Controller 21, drives diesel engine
Rotate；
After the completion of diesel engine opens machine, enable Automatic Excitation Controller 21 and be operated in normal mode of operation, four-quadrant unsteady flow
Device 31 is operated in rectification mode, and machine process is opened in completion.
The machine mode that opens of this circuit realiration saves complicated mechanical structure, and simplify complexity opens electromechanical road, it is not necessary to increase
Start the conversion equipment such as change-over switch CTS and high-power contactor, reduction opens machine auxiliary facility, is easy to global optimization space cloth
Office, will be more rapid and easy while opening machine using the high voltage of electrokinetic cell, also comply with the major-minor integration of AC drive locomotive
Developing direction.
Claims (4)
1. one kind realizes exchange diesel engine of diesel locomotive variable frequency starting circuit based on four quadrant convertor, it is characterized in that, including master
Generator（1）, excitation control loop（2）, main variable flow cabinet（3）, electrokinetic cell（4）And load equipment（5）, the excitation con-trol
Loop（2）Include Automatic Excitation Controller（21）, exciting transformer（22）And control battery（23）, the main variable flow cabinet（3）
It is interior including four quadrant convertor（31）, several drag current transformer modules（32）And auxiliary current transformer module（33）, load equipment
（5）Including several traction electric machines（51）, one group of braking resistor（52）And auxiliary transformer（53）.
2. according to claim 1 realize exchange diesel engine of diesel locomotive variable frequency starting circuit based on four quadrant convertor,
It is characterized in that, the main generator（1）Connect contactor K1 one end, K1 other ends connection four quadrant convertor（31）And excitation-transformation variable
Depressor（22）, exciting transformer（22）Connect Automatic Excitation Controller（21）, Automatic Excitation Controller（21）Another input connects
Connect control battery（23）, Automatic Excitation Controller（21）Output end connection main generator（1）Excitation input end.
3. according to claim 1 realize exchange diesel engine of diesel locomotive variable frequency starting circuit based on four quadrant convertor,
It is characterized in that, the four quadrant convertor（31）By main generator（1）The three-phase alternating current electric rectification sent is output to intermediate dc
Link, for drag current transformer module（32）And auxiliary current transformer module（33）Work, while four quadrant convertor（31）Can be by
Between DC tache voltage inversion export to main generator（1）Used for opening machine.
4. according to claim 1 realize exchange diesel engine of diesel locomotive variable frequency starting circuit based on four quadrant convertor,
It is characterized in that, the drag current transformer module（32）In 3 tunnel copped wave bridge arms driving traction electric machine（51）Work, 2#, 3#, 6# are led
The 4th copped wave bridge arm regulation voltage and current for drawing converter module is exported to power battery charging, 1#, 4#, 5# traction current transformations
Device module（32）The 4th copped wave bridge arm adjust power consumption to braking resistor（52）On；The electrokinetic cell（4）With traction current transformation
Device module（32）Between be provided with smoothing reactor L1, pre-charge resistance R1 and contactor K2, K3, K4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620836880.0U CN206487580U (en) | 2016-08-04 | 2016-08-04 | Exchange diesel engine of diesel locomotive variable frequency starting circuit is realized based on four quadrant convertor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620836880.0U CN206487580U (en) | 2016-08-04 | 2016-08-04 | Exchange diesel engine of diesel locomotive variable frequency starting circuit is realized based on four quadrant convertor |
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|---|---|
| CN206487580U true CN206487580U (en) | 2017-09-12 |
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| CN201620836880.0U Active CN206487580U (en) | 2016-08-04 | 2016-08-04 | Exchange diesel engine of diesel locomotive variable frequency starting circuit is realized based on four quadrant convertor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733055A (en) * | 2017-11-29 | 2018-02-23 | 中车资阳机车有限公司 | A kind of charging system for electric hybrid vehicle vehicle mounted dynamic battery |
-
2016
- 2016-08-04 CN CN201620836880.0U patent/CN206487580U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733055A (en) * | 2017-11-29 | 2018-02-23 | 中车资阳机车有限公司 | A kind of charging system for electric hybrid vehicle vehicle mounted dynamic battery |
| CN107733055B (en) * | 2017-11-29 | 2023-10-10 | 中车资阳机车有限公司 | Charging system for vehicle-mounted power battery of oil-electricity hybrid power locomotive |
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