CN201907427U - Auxiliary power-supply system for diesel locomotive - Google Patents
Auxiliary power-supply system for diesel locomotive Download PDFInfo
- Publication number
- CN201907427U CN201907427U CN2010206712971U CN201020671297U CN201907427U CN 201907427 U CN201907427 U CN 201907427U CN 2010206712971 U CN2010206712971 U CN 2010206712971U CN 201020671297 U CN201020671297 U CN 201020671297U CN 201907427 U CN201907427 U CN 201907427U
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- China
- Prior art keywords
- inverter
- power supply
- diesel
- supply system
- diesel locomotive
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- 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.)
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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
- Y02T10/72—Electric energy management in electromobility
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses an auxiliary power-supply system for a diesel locomotive, comprising a diesel engine auxiliary generator set, a storage battery pack and a compressor motor, wherein the diesel engine auxiliary generator set and the storage battery pack are combined to form a direct current power supply; the direct current power supply is further connected with an inverter; the inverter inverses the direct current into an alternating current; a microcomputer controlled system is further connected on the inverter; and the inverter is controlled by the microcomputer controlled system. In the utility model, the inverter inverses a direct-current power supply mode into an alternating-current power supply mode so as to enable the power-supply system for the diesel locomotive to be supplied with power stably, improve the power supply quality of the auxiliary power supply system and save energy; and the mechanical impact force to the compressor set can be reduced, the service life of the compressor set is prolonged and the locomotive noise is lowered.
Description
Technical field
The utility model relates to a kind of auxiliary power supply system that is used for diesel locomotive power supply field.
Background technology
Auxiliary generating system is one of important component part in the diesel locomotive electric system, all providing of the electricity consumption of the brake system air compressor electric motor of diesel locomotive, the electricity consumption of control system, Lighting System by auxiliary generating system with point, synchronous traction generator excitation and battery charge lamp, so, how controlling auxiliary generator well, is about locomotive operation performance quality and stable big problem.But existing diesel locomotive auxiliary power supply all substantially all adopts the power supply of DC auxiliary generator power supply, and when direct current compressor started, starting current was big, and noise is bigger, and bigger to the stability influence of direct supply voltage, and efficient is not high.Moreover existing diesel locomotive compressor electric motor is full voltage starting under auxiliary power supply, and is bigger to the mechanical impact force of Compressor Group, influences the service life of unit, increases the maintaining expense.Above-mentioned two kinds of problems cause the helper motor fault rate higher, increase the maintaining cost; Cause the loss of locomotive auxiliary power excessive, waste energy; It is bigger to make that simultaneously locomotive starts the operation noise, influences the bus attendant working environment.
The utility model content
The purpose of this utility model just is to provide a kind of diesel locomotive auxiliary power supply system, and it can convert the powered by direct current mode to the AC-powered mode, and power supply is stable, can reduce the mechanical impact force to the air compressor unit.
To achieve these goals, the technical solution adopted in the utility model is such: a kind of diesel locomotive auxiliary power supply system, comprise that diesel power generation assists unit, battery pack, compressor electric motor, auxiliary unit of described diesel power generation and the synthetic direct supply of battery pack, it is characterized in that: also be connected with inverter on the described direct supply, inverter is transformed into alternating current with direct current (DC), and also on inverter, also be connected with one by microprocessor control system, by microprocessor control system inverter is controlled.The principle of work of inverter is: direct current (DC) can become alternating current by oscillating circuit; The alternating current that obtains boosts by coil again, and what at this moment obtain is the alternating current of rectangular wave, then the alternating current that obtains is carried out rectification and obtains sinusoidal waveform.In this process, form voltage conversion circuit by MOS switching valve and energy storage inductor, the pulse of input is amplified the rear drive metal-oxide-semiconductor through push pull amplifier and is done switch motion, make vdc discharge and recharge inductance, the other end of inductance just can obtain alternating-current voltage/AC voltage like this.
Because system has certain redundancy, described inverter quantity is two groups, is connected with direct supply after these two groups of inverter parallel connections.Under an inverter et out of order situation, load can be automaticallyed switch, and guarantees that all subsidiary engines still can normally move.Under two current transformer et out of order situations, the cut-out load, the merit operation still can fall in locomotive.The broken probability of machine is reduced greatly.
As preferably, described compressor electric motor is an ac three-phase asynchronous motor, itself and inverter Electricity Federation.
Compared with prior art, advantage of the present utility model is:
Inverter in the utility model converts the powered by direct current mode to the AC-powered mode, makes that the electric power system power supply of diesel locomotive is stable, improves the ancillary system quality of power supply, saves the energy; Can reduce mechanical impact force, prolong the service life of Compressor Group, and reduce the locomotive noise Compressor Group.
Description of drawings
Fig. 1 is a structure principle chart of the present utility model.
Among the figure: 1 direct supply, 2 inverters, 3 compression motors, 4 compressor electric motor electric currents, 5 microprocessor control systems
The specific embodiment
The utility model is described in further detail with concrete enforcement below in conjunction with accompanying drawing;
Referring to Fig. 1, a kind of diesel locomotive auxiliary power supply system, comprise the direct supply 1 that diesel power generation assists unit, the auxiliary unit of the described diesel power generation of battery pack and battery pack to synthesize, described direct supply 1 also is connected with inverter 2, inverter 2 quantity are two groups, these two groups of inverters, 2 backs in parallel are connected with direct supply 1, and also also are connected with one by microprocessor control system 5, compressor electric motor 3 on inverter 2, and inverter 2 carries out work by microprocessor control system 5 controls.The direct current (DC) that sends of direct supply 1 is transformed into alternating current through behind the inverter 2, and then makes the compressor electric motor 3 that is attached thereto work in compressor electric motor alternating current 4 environment, and sends alternating current, for microprocessor control system 5 provides alternating current.Compressor electric motor 3 adopts ac three-phase asynchronous motor to drag, and provides wind regime to locomotive.
Described contrary 2 become device all adopts IGBT as on-off element.By pulsewidth modulation principle (PWM) work, high switching frequency has reduced the harmonic wave of input and output greatly.Received current can reach and the basic homophase of input voltage, and the power factor of inverter 2 is very high.The control system of inverter 2 adopts motor special speed governing dsp chip to realize.This control chip has complete digital control unit, comprises the gate pole control of power switch component, collecting sensor signal, inverter 2 work monitoring, fault detection and CAN bus interface etc.AuCT is by CAN bus and external relation, sending AuCT by big logical block (LCU) by the CAN bus starts and other control signal, when the AuCT et out of order, send breakdown signal by the CAN bus to big logical block (LCU), for system provides foundation as trouble diagnosing.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art the some improvements and modifications not breaking away under the utility model principle prerequisite also should be considered as protection domain of the present utility model.
Claims (3)
1. diesel locomotive auxiliary power supply system, comprise that diesel power generation assists unit, battery pack, compressor electric motor, auxiliary unit of described diesel power generation and the synthetic direct supply of battery pack, it is characterized in that: described direct supply also is connected with inverter, inverter is transformed into alternating current with direct current (DC), and also on inverter, also be connected with one by microprocessor control system, by microprocessor control system inverter is controlled.
2. a kind of diesel locomotive auxiliary power supply system according to claim 1 is characterized in that: described inverter quantity is two groups, is connected with direct supply after these two groups of inverter parallel connections.
3. a kind of diesel locomotive auxiliary power supply system according to claim 1 is characterized in that: described compressor electric motor is an ac three-phase asynchronous motor, itself and inverter Electricity Federation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206712971U CN201907427U (en) | 2010-12-21 | 2010-12-21 | Auxiliary power-supply system for diesel locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206712971U CN201907427U (en) | 2010-12-21 | 2010-12-21 | Auxiliary power-supply system for diesel locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201907427U true CN201907427U (en) | 2011-07-27 |
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ID=44299636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206712971U Expired - Lifetime CN201907427U (en) | 2010-12-21 | 2010-12-21 | Auxiliary power-supply system for diesel locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201907427U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661431A (en) * | 2013-12-19 | 2014-03-26 | 马钢(集团)控股有限公司 | Electrical driving low-voltage control device of mining direct-current locomotive |
| CN111917359A (en) * | 2020-08-05 | 2020-11-10 | 中车大连机车车辆有限公司 | Control method for motor voltage of train alternating current auxiliary transmission system |
-
2010
- 2010-12-21 CN CN2010206712971U patent/CN201907427U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661431A (en) * | 2013-12-19 | 2014-03-26 | 马钢(集团)控股有限公司 | Electrical driving low-voltage control device of mining direct-current locomotive |
| CN111917359A (en) * | 2020-08-05 | 2020-11-10 | 中车大连机车车辆有限公司 | Control method for motor voltage of train alternating current auxiliary transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610065 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31 Patentee after: CRRC CHENGDU CO., LTD. Address before: 610065 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31 Patentee before: CSR Chengdu Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |
|
| CX01 | Expiry of patent term |