CN204928613U - Emergency power supply unit among track transportation vehicles - Google Patents
Emergency power supply unit among track transportation vehicles Download PDFInfo
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- CN204928613U CN204928613U CN201520543290.4U CN201520543290U CN204928613U CN 204928613 U CN204928613 U CN 204928613U CN 201520543290 U CN201520543290 U CN 201520543290U CN 204928613 U CN204928613 U CN 204928613U
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Abstract
The utility model discloses an emergency power supply unit among track transportation vehicles, including the dc -to -ac converter, the input of dc -to -ac converter is provided with the protection circuit, and the dc -to -ac converter still is connected with the controller that is used for control inverter output, and the controller includes DSP control module, and DSP control module is connected with analog input processing module, switching value input processing module and switch quantity output processing module, analog input processing module for gather with the input voltage of transform dc -to -ac converter, intermediate voltage and the output voltage of dc -to -ac converter via the DSP control module control after, switching value input process module for incoming signal to IGBT in the dc -to -ac converter handles, and monitoring emergency power supply unit's running state, switch quantity output processing module for alternating current control output, the real time monitoring inverter output state scans the control through DSP control module simultaneously. Maintain with what exist that the degree of difficulty is big among the solution prior art, the power supply is unified, the unstable problem of output voltage.
Description
Technical field
The utility model belongs to technical field of automation, relates to emergency power supply unit in a kind of rail traffic vehicles.
Background technology
Existing power supply device is due to railway systems technological lag and self reason, and existing power supply small product size is huge, and noise is large, and stability is poor, and supply power mode is complicated, adopts multiple-way supply, goes wrong and cannot process in time, and maintenance difficulties is large, generally to be replaced by master.Due to railway systems particularity, present stage does not have a volume little, powers single, and the product that cost performance is high serves railway systems.
Utility model content
The purpose of this utility model is to provide emergency power supply unit in a kind of rail traffic vehicles, large to solve the maintenance difficulties existed in prior art, power supply disunity, the problem of output voltage instability.
The technical scheme that the utility model adopts is, emergency power supply unit in a kind of rail traffic vehicles, comprise inverter, the input of inverter is provided with protective circuit, inverter is also connected with the controller exported for control inverter, controller comprises DSP control module, and DSP control module is connected with analog input processing module, On-off signal processing module and output switch parameter processing module;
Analog input processing module, for gathering and convert the input voltage of inverter, the output voltage via the intermediate voltage after DSP control module control and inverter;
On-off signal processing module, for processing the input signal of IGBT in inverter, and monitors the running status of emergency power supply unit;
Output switch parameter processing module, controls to export for alternating current, simultaneous real-time monitoring inverter output state, carries out scanning monitoring by DSP control module.
Further, analog input processing module comprises for large voltage signal being transformed into the signal conversion circuit of small voltage signal and being used for carrying out small voltage signal the filter circuit of filtering process.
Further, DSP control module is also connected with the control power module for providing power supply for emergency power supply unit.
Further, DSP control module is also connected with human-machine interface module, and human-machine interface module comprises keyboard interface, RS485 communication interface, stem-winder display interface and/or battery detection interface.
Further, DSP control module is also connected with the inverter bridge driver module for DC voltage conversion being become three-phase alternating voltage.
Further, protective circuit comprises diode and filter capacitor, and diode is connected to the input of inverter 1 through filter capacitor.
The beneficial effects of the utility model are, input have employed single-phase full bridge diode, prevents input reverse-connection; Adopt DSP control module to carry out control inverter, the functions such as output overloading protection, overcurrent protection, overtemperature protection can be realized, switching controls can be carried out to the output of inverter simultaneously.
Accompanying drawing explanation
Fig. 1 is the model calling figure of the utility model master control borad experimental rig;
Fig. 2 is the model calling figure of the utility model master control borad experimental rig middle controller.
In figure, 1. inverter, 2. controller, 3. diode, 4. filter capacitor, 5.DSP control module, 6. analog input processing module, 7. On-off signal processing module, 8. output switch parameter processing module, 9. inverter bridge driver module, 10. control power module, 11.RS485 communication interface, 12. battery detection interfaces, 13. keyboard interfaces, 14. stem-winder display interfaces.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model provides emergency power supply unit in a kind of rail traffic vehicles; comprise inverter 1; the input of inverter 1 is provided with protective circuit; protective circuit comprises single-phase full bridge diode 3 and filter capacitor 4; single-phase full bridge diode 3 is connected to the input of described inverter 1 through filter capacitor 4; filter can improve harmonic wave, and single-phase full bridge diode 3 can prevent input reverse-connection.
Inverter 1 is also connected with the controller 2 exported for control inverter 1, and the core of controller 2 is DSP control module 5.DSP control module 5 is connected to analog input processing module 6, On-off signal processing module 7, output switch parameter processing module 8, inverter bridge driver module 9 by each pin of himself, is controlled power module 10, RS485 communication interface 11, battery detection interface 12, keyboard interface 13 and stem-winder display interface 14.
1, DSP control module 5:
Consider the development of computer technology and current fashion trend, usually TI company's T MS320F2808 series DSP control module 5 is adopted in the middle of reality uses, adopt the CPU of 32, the key property of this chip has: flash storage, 18K ram in slice, 16 road PWM outputs, 16 road A/D conversion logics, CAN, I in 32 bit CPUs, 128K sheet
2c, SPI, UART interface.
2, analog input processing module 6:
For gathering and convert the input voltage DC600V of inverter 1, the output voltage via the intermediate voltage after DSP control module 5 control and inverter 1; Wherein, intermediate voltage refers to the three-phase alternating voltage not having filtering, and output voltage refers to voltage during final connection load.
Analog input processing module 6 comprises signal conversion circuit and filter circuit.Signal conversion circuit is mainly used in large voltage signal to be transformed into small voltage signal, then carries out filtering process by filter circuit to little voltage signal.
Consider the requirement of emergency power supply seriation, the processing method of analog input processing module 6 is:
Detect two-way mains input voltage, be used for realizing two-way civil power and automatically switch; Detect road inverter 1 output AC voltage, reach voltage stabilization and current stabilization and export, ensure the quality of output voltage; Detect the multiple-channel output electric current of inverter 1, for overload protection, and it is for you to choose to provide multiple-channel output to control.
3, On-off signal processing module 7:
For processing the input signal of IGBT in inverter 1, specifically referring to and first cycle of input signal and second recurrent pulse are controlled, being transferred to DSP control module 5 again after control, and monitoring the running status of the utility model emergency power supply unit.
4, output switch parameter processing module 8:
Export for controlling alternating current, the output state of simultaneous real-time monitoring inverter 1, and by DSP control module 5, scanning monitoring is carried out to this process.
The output intent of output switch parameter processing module 7 has two types: the first type adopts relay to export, for the output of the polarity and control inverter 1 that switch inverter 1; The second type adopts the pwm signal of the pwm signal and inverter bridge driver module 9 that control power module 10 charging control to export, and could control power switch after this pwm signal need add the drive circuit of power device.
5, inverter bridge driver module 9:
For DC voltage conversion is become three-phase alternating voltage.Inverter 1 adopts three-phase bridge PWM inverter, and power device adopts three-phase bridge IGBT module, and control mode adopts SVPWM to control, and completes controlling functions by system controller.
6, power module 10 is controlled:
Control power module 10 and provide control power supply for emergency power supply unit in a kind of rail traffic vehicles of the present utility model, provide main power source DC600V by for electric car, then be converted to+24V and+5V power supply.Hardware designs for system controller considers corresponding Electro Magnetic Compatibility and antijamming capability, and controlling power module 10 should have hard defencive function simultaneously.
7, RS485 communication interface 11, battery detection interface 12, keyboard interface 13 and stem-winder display interface 14:
DSP control module 5 is also connected with human-machine interface module, and human-machine interface module comprises keyboard interface 13, RS485 communication interface 11, touch screen interface, battery interface and stem-winder display interface 14.Emergency power supply inner parameter can be revised by keyboard interface 13, make output voltage frequency reach the demand of client; Can the voltage of emergency power supply, electric current, frequency parameter be transferred on touch-screen by RS485 interface 11, carry out the operating state of real-time monitoring power supply; Can the data of power supply be presented on screen by touch screen interface, carry out real-time monitoring power supply parameters performance; Battery detection interface 12 is upgrade function, can monitor in real time and power on the state in pond for electric car, by stem-winder display electric current and voltage ripple state.
In a kind of rail traffic vehicles of the present utility model, emergency power supply unit entirety adopts push-pull structure, with handle, convenient mobile; bottom all adopts universal wheel locking device; its terminals adopt internal connecting type, will have protective cover after carefully connecting the wire, and prevent electric shock and metal object from falling in short circuit above.
In a kind of rail traffic vehicles of the present utility model, emergency power supply unit adopts DSP control inverter 1, the functions such as output overloading protection, overcurrent protection, overtemperature protection can be realized, switching controls can be carried out to the output of inverter 1 simultaneously, and can arrange input overvoltage protection be more than or equal to DC700V, under-voltage protection is less than or equal to DC500V; Can in 30KW, normally drive inductive load and resistive load normally to run, load starts emergency power supply output voltage excursion instantaneously and controls between AC365V-AC395V, is stabilized between AC380V ± 5 after normal output.
Claims (6)
1. emergency power supply unit in a rail traffic vehicles, it is characterized in that, comprise inverter (1), the input of described inverter (1) is provided with protective circuit, described inverter (1) is also connected with the controller (2) exported for control inverter (1), described controller (2) comprises DSP control module (5), and described DSP control module (5) is connected with analog input processing module (6), On-off signal processing module (7) and output switch parameter processing module (8);
Described analog input processing module (6), for gathering and convert the input voltage of described inverter (1), the output voltage via the intermediate voltage after DSP control module (5) control and described inverter (1);
Described On-off signal processing module (7), for processing the input signal of IGBT in described inverter (1), and monitors the running status of described emergency power supply unit;
Described output switch parameter processing module (8), controls to export for alternating current, simultaneous real-time monitoring inverter output state, carries out scanning monitoring by DSP control module (5).
2. emergency power supply unit in a kind of rail traffic vehicles as claimed in claim 1, it is characterized in that, described analog input processing module (6) comprises for large voltage signal being transformed into the signal conversion circuit of small voltage signal and being used for carrying out small voltage signal the filter circuit of filtering process.
3. emergency power supply unit in a kind of rail traffic vehicles as claimed in claim 1 or 2, is characterized in that, described DSP control module (5) is also connected with the control power module (10) for providing power supply for emergency power supply unit.
4. emergency power supply unit in a kind of rail traffic vehicles as claimed in claim 1 or 2, it is characterized in that, described DSP control module (5) is also connected with human-machine interface module, and described human-machine interface module comprises keyboard interface (13), RS485 communication interface (11), stem-winder display interface (14) and/or battery detection interface (12).
5. emergency power supply unit in a kind of rail traffic vehicles as claimed in claim 1 or 2, it is characterized in that, described DSP control module (5) is also connected with the inverter bridge driver module (9) for DC voltage conversion being become three-phase alternating voltage.
6. emergency power supply unit in a kind of rail traffic vehicles as claimed in claim 1 or 2; it is characterized in that described protective circuit comprises diode (3) and filter capacitor (4), described diode (3) is connected to the input of described inverter (1) through filter capacitor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520543290.4U CN204928613U (en) | 2015-07-24 | 2015-07-24 | Emergency power supply unit among track transportation vehicles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520543290.4U CN204928613U (en) | 2015-07-24 | 2015-07-24 | Emergency power supply unit among track transportation vehicles |
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| Publication Number | Publication Date |
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| CN204928613U true CN204928613U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520543290.4U Active CN204928613U (en) | 2015-07-24 | 2015-07-24 | Emergency power supply unit among track transportation vehicles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993733A (en) * | 2015-07-24 | 2015-10-21 | 北京九方宏信交通装备有限公司 | Emergency power supply device in rail transit vehicle |
| CN106253722A (en) * | 2016-08-05 | 2016-12-21 | 广东亿鼎新能源汽车有限公司 | Vehicle-mounted discharge and recharge inversion system |
-
2015
- 2015-07-24 CN CN201520543290.4U patent/CN204928613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993733A (en) * | 2015-07-24 | 2015-10-21 | 北京九方宏信交通装备有限公司 | Emergency power supply device in rail transit vehicle |
| CN106253722A (en) * | 2016-08-05 | 2016-12-21 | 广东亿鼎新能源汽车有限公司 | Vehicle-mounted discharge and recharge inversion system |
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