CN204304788U - A kind of DC power supply device of city rail vehicle air-conditioning - Google Patents
A kind of DC power supply device of city rail vehicle air-conditioning Download PDFInfo
- Publication number
- CN204304788U CN204304788U CN201420804386.7U CN201420804386U CN204304788U CN 204304788 U CN204304788 U CN 204304788U CN 201420804386 U CN201420804386 U CN 201420804386U CN 204304788 U CN204304788 U CN 204304788U
- Authority
- CN
- China
- Prior art keywords
- power supply
- unit
- electric capacity
- conditioning
- rail vehicle
- 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
Landscapes
- Inverter Devices (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a kind of DC power supply device of city rail vehicle air-conditioning, comprise the DC power supply of access and the power supply processing components for carrying out isolated variable to DC power supply, the output of power supply processing components connects air-conditioning internal inverters; Power supply processing components comprises the input filter unit, precharge unit, medium frequency inverter unit, medium-frequency isolation transformer and the rectification filtering unit that connect successively, and the DC power supply of input is by being supplied to the DC bus powered of air-conditioning internal inverters after the conversion of above-mentioned each unit.The utility model effectively can reduce complexity and cost, the weight of vehicle air conditioning powersupply system, realizes energy-saving and emission-reduction, and achieves the electrical isolation of input and output simultaneously, guarantee Electrical Safety; Have simple and compact for structure, with low cost, volume is little, lightweight, power supply is stable and the advantage that security performance is high.
Description
Technical field
The utility model relates to city rail vehicle power supply technique field, particularly relates to a kind of DC power supply device of city rail vehicle air-conditioning.
Background technology
At present in the air-conditioning electric power system of city rail vehicle, usually be all the mode of being carried out directly power supply by the high-power AuCT of city rail vehicle, such as directly access the DC750V power supply of electrical network, AuCT needs by becoming three-phase alternating current after the mode of direct inversion, filtering, power frequency isolation.But there is following problem in this supply power mode: 1) voltage of power supply network is higher, therefore the 1700V IGBT inverter circuit that AuCT must support the use big current completes inversion, and the cost of the 1700VIGBT inverter circuit of big current is high and power loss is large; 2) multiple stage air-conditioning normally carries out centrally connected power supply by subordinate inverter and controls, and when subordinate inverter breaks down, all controlled air-conditionings all will break down and can not use will affect vehicle operating; 3) 380V also will be rectified into direct current after powering and entering convertible frequency air-conditioner, causes volume, weight, cost to waste; 4) AuCT of car load has very large weight and volume, installs concentratedly on a certain joint of vehicle, is unfavorable for that the weight uniformity of vehicle distributes, also causes the weight of whole vehicle to increase a lot, equally also need to consume more electric energy.
Utility model content
The technical problems to be solved in the utility model is just: the technical problem existed for prior art, the utility model provides a kind of effectively can be reduced inverter circuit cost in air-conditioning internal inverters and realize the DC power supply device of city rail vehicle air-conditioning of voltage intermediate frequency isolation, have simple and compact for structure, with low cost, volume weight is little, power supply is stable and the advantage that security performance is high.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is:
A DC power supply device for city rail vehicle air-conditioning, comprises the DC power supply of access and the power supply processing components for carrying out isolated variable to described DC power supply, and the output of described power supply processing components connects air-conditioning internal inverters; This power supply processing components comprises the input filter unit, precharge unit, medium frequency inverter unit, medium-frequency isolation transformer and the rectification filtering unit that connect successively, DC power supply successively through input filter unit, precharge unit and the inversion of medium frequency inverter unit be medium frequency alternating current, after medium-frequency isolation transformer transformation, carry out rectification post filtering by rectification filtering unit again, finally obtain the DC bus that required DC power supply is supplied to air-conditioning internal inverters.
As further improvement of the utility model: described medium frequency inverter unit comprises two power cells, each described power cell is IGBT full bridge structure, and the output of two described power cells connects one end of described medium-frequency isolation transformer former limit winding respectively.
As further improvement of the utility model: described rectification filtering unit comprises two rectifier circuits and output filter circuit; Described medium-frequency isolation transformer is step-up transformer, and described step-up transformer comprises a vice-side winding, and described two vice-side winding connect a described rectifier circuit respectively, and described rectifier circuit connects air-conditioning internal inverters by output filter circuit.
As further improvement of the utility model: described precharge unit is connected on the positive and negative busbar of power supply network by input filter unit; Described precharge unit comprises pre-charge resistance R0 described in pre-charge resistance R0 and electric capacity subelement and connects described medium frequency inverter unit by electric capacity subelement.
As further improvement of the utility model: described precharge unit also comprises the thyristor VT in parallel with pre-charge resistance R0; Described electric capacity subelement comprises the electric capacity of multiple series connection, and on each described electric capacity, a grading resistor in parallel is used for dividing equally the voltage of electric capacity, has been come to capacitor charging by the switch controlling thyristor VT.
As further improvement of the utility model: described input filter unit comprises the first inductance L 1 and the first electric capacity C21, described first inductance L 1 is connected in the positive electrode bus of power supply network by fuse FU1, described first electric capacity C21 one end connects the positive electrode bus of power supply network, and the other end connects the negative electrode bus of power supply network.
As further improvement of the utility model: described output filter circuit comprises the second inductance L 2 and the second electric capacity C5, the 3rd electric capacity C6, the DC power supply that described rectifier circuit exports exports to the DC bus powered of air-conditioning internal inverters after the filtering of described second inductance L 2 and the second electric capacity C5, the 3rd electric capacity C6.
Compared with prior art, the utility model has the advantage of: 1) the utility model is by processing DC power supply, make little more many than the high-power AuCT power of tradition use, therefore the 1700V IGBT using big current is not needed, as long as use conventional 1200V IGBT, such cost is low and power loss is much little; 2) in the utility model, 1 air-conditioning internal inverters uses 1 power supply device to carry out power supply control, can not affect vehicle and normally run, have good redundancy when 1 covering device breaks down; 3) output of the present utility model directly connects air-conditioning internal inverters, can reduce the waste of volume, weight, cost; 4) single in the utility model power supply device is that dispersion is arranged on the often joint car of vehicle, and the weight uniformity being conducive to vehicle distributes, and the AuCT that the weight of permutation vehicle also adopts than tradition is light, and the same electric energy consumed is also few.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the DC power supply device of the present embodiment city rail vehicle air-conditioning.
Fig. 2 is the detailed circuit schematic of DC power supply device in the present embodiment.
Marginal data:
1, power supply processing components; 11, medium frequency inverter unit; 111, power cell; 12, medium-frequency isolation transformer; 13, rectification filtering unit; 131, rectifier circuit; 132, output filter circuit; 14, precharge unit; 141, electric capacity subelement; 15, input filter unit.
Embodiment
Below in conjunction with Figure of description and concrete preferred embodiment, the utility model is described further, but does not therefore limit protection range of the present utility model.
As shown in Figure 1, the DC power supply device of the present embodiment city rail vehicle air-conditioning comprises the DC power supply of access and the power supply processing components 1 for carrying out isolated variable to DC power supply, and the output of power supply processing components 1 connects air-conditioning internal inverters; Power supply processing components 1 comprises the input filter unit 15, precharge unit 14, medium frequency inverter unit 11, medium-frequency isolation transformer 12 and the rectification filtering unit 13 that connect successively, DC power supply successively through input filter unit 15, precharge unit 14 and medium frequency inverter unit 11 inversion be medium frequency alternating current, after the voltage isolation and boosting of medium-frequency isolation transformer 12, carry out rectification, filtering by rectification filtering unit 13 again, the DC power supply obtained is supplied to air-conditioning internal inverters.
The DC power supply accessed in the present embodiment is the DC750V power supply of power supply network access, the input of power supply processing components 1 connects electrical network, export DC600V after DC power supply is carried out isolated variable, this DC600V DC power supply is powered to air-conditioning internal inverters.Power supply processing components 1 can buck or boost be also the direct voltage of other grades according to demand.
In the present embodiment, power supply processing components 1 adopts the structure of DC-AC-direct current, be midfrequent AC square wave by medium frequency inverter unit 11 by DC power supply inversion, isolation boosting is carried out by medium-frequency isolation transformer 12, be galvanic current source by rectification filtering unit 13 rectification again and be supplied to air-conditioning internal inverters after carrying out filtering, effectively improving stability and the security performance of power supply.
As shown in Figure 2, medium frequency inverter unit 11 comprises two power cells 111, and each power cell 111 is IGBT full bridge structure, and the output of two power cells 111 connects one end of medium-frequency isolation transformer 12 former limit winding respectively.Each power cell 111 specifically comprises two IGBT module (VQ1, VQ2; VQ3, VQ4) and storage capacitor (C23; C24), each IGBT module comprises two IGBT elements.
As shown in Figure 2, rectification filtering unit 13 comprises two rectifier circuits 131 and output filter circuit 132, and rectifier circuit 131 is the full bridge rectifier be made up of four diodes.Medium-frequency isolation transformer 12 is step-up transformer, and step-up transformer comprises two vice-side winding, and two vice-side winding connect a rectifier circuit 131 respectively, and rectifier circuit 131 connects air-conditioning internal inverters by output filter circuit 132.The size of current of medium-frequency isolation transformer 12 input is monitored by current transformer TA1, realize electrical isolation by the former limit of medium-frequency isolation transformer 12 (input) and secondary (output), thus ensure the power supply safety of air-conditioning internal inverters.
As shown in Figure 2, precharge unit 14 is connected on the positive and negative busbar of electrical network by input filter unit 15, precharge unit 14 comprises interconnective pre-charge resistance R0 and electric capacity subelement 141, and pre-charge resistance R0 connects medium frequency inverter unit 11 by electric capacity subelement 141.
As shown in Figure 2, precharge unit 14 also comprises the thyristor VT in parallel with pre-charge resistance R0, electric capacity subelement 141 comprises the electric capacity (C1 ~ C4) of multiple series connection, each Capacitance parallel connection grading resistor (R1 ~ R4), has carried out (C1 ~ C4) charging by the switch controlling thyristor VT.In the present embodiment, thyristor VT adopts the thyristor module comprising diode, and pre-charge resistance R0 is in parallel with thyristor in thyristor module to be used.Ensure that the voltage be applied on each electric capacity is substantially equal by the even resistance be connected in parallel on each electric capacity, thus avoid voltage uneven and damage electric capacity.
In the present embodiment, the input of power supply processing components 1 suppresses the various voltage and current peaks of external electrical network by input filter unit 15, protection late-class circuit safety.See Fig. 2, input filter unit 15 comprises the first inductance L 1 and the first electric capacity C21, first inductance L 1 is connected in the positive electrode bus of electrical network by fuse FU1, and first electric capacity C21 one end connects the positive electrode bus of power supply network, and the other end connects the negative electrode bus of power supply network.
In the present embodiment, the output of power supply processing components is by output filter circuit 132, and the DC power supply of the bridge circuit of self-rectifying in the future 131 carries out the little direct voltage of output ripple after filtering.See Fig. 2, output filter circuit 132 comprises the second electric capacity C5, the 3rd electric capacity C6 of the second inductance L 2 and series connection, second inductance L 2 is located in the positive electrode bus of output, second electric capacity C5 one end connects the output cathode bus of inductance L 2, the other end connects the negative electrode bus exported by the 3rd electric capacity C6, the DC power supply that rectifier circuit 131 exports exports to the DC bus powered of air-conditioning internal inverters through the filtering of the second inductance L 2 and the second electric capacity C5, the 3rd electric capacity C6.The output of the second inductance L 2 is also connected with current sensor SC1, is realized the closed-loop control of electric current by current sensor SC1.
See Fig. 2, power supply processing components 1 is also provided with the protective circuit absorbing power network overvoltage at input, comprises piezo-resistance VR1 in parallel and Absorption Capacitance C22, absorbs input power network overvoltage by piezo-resistance VR1, Absorption Capacitance C22.Y capacitance CY1 ~ CY6 is also respectively equipped with, for absorbing differential mode interference at the input of power supply processing components 1, output.
The power supply processing components 1 of vehicle power supply network passes through fuse FU1 and pre-charge resistance R0 to C1 ~ C4 capacitor charging of electric capacity subelement 141, after charging complete, thyristor VT is open-minded, DC power supply after the filtering of input filter unit 15 successively through medium frequency inverter unit 11, medium-frequency isolation transformer 12 and rectification filtering unit 13, obtained DC power supply by rectifier circuit 131 rectification, carried out the DC600V power supply of stable output after filtering again by output filter circuit 132, be supplied to follow-up air-conditioning internal inverters bus.
In the present embodiment, every platform air-conditioning internal inverters connects an above-mentioned power supply device, thus can avoid the situation that occurs that large quantities of air-conditioning breaks down simultaneously, has good redundancy.
Above-mentioned just preferred embodiment of the present utility model, not does any pro forma restriction to the utility model.Therefore every content not departing from technical solutions of the utility model, according to the utility model technology to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of the utility model technical requirement protection.
Claims (7)
1. the DC power supply device of a city rail vehicle air-conditioning, it is characterized in that comprising: the DC power supply of access and the power supply processing components (1) for carrying out isolated variable to described DC power supply, the output of described power supply processing components (1) connects air-conditioning internal inverters; Described power supply processing components (1) comprises the input filter unit (15), precharge unit (14), medium frequency inverter unit (11), medium-frequency isolation transformer (12) and the rectification filtering unit (13) that connect successively, and DC power supply is by being supplied to the DC bus powered of air-conditioning internal inverters after the conversion of above-mentioned each unit.
2. the DC power supply device of city rail vehicle air-conditioning according to claim 1, it is characterized in that: described medium frequency inverter unit (11) comprises two power cells (111), each described power cell (111) is IGBT full bridge structure, and the output of two described power cells (111) connects one end of described medium-frequency isolation transformer (12) former limit winding respectively.
3. the DC power supply device of city rail vehicle air-conditioning according to claim 2, is characterized in that: described rectification filtering unit (13) comprises two rectifier circuits (131) and output filter circuit (132); Described medium-frequency isolation transformer (12) is step-up transformer, described step-up transformer comprises two vice-side winding, described two vice-side winding connect a described rectifier circuit (131) respectively, and described rectifier circuit (131) connects air-conditioning internal inverters by output filter circuit (132).
4. the DC power supply device of city rail vehicle air-conditioning according to claim 1 or 2 or 3, is characterized in that: described precharge unit (14) is connected on the positive and negative busbar of input electrical network by input filter unit (15); Described precharge unit (14) comprises pre-charge resistance R0 and electric capacity subelement (141), and described pre-charge resistance R0 connects described medium frequency inverter unit (11) by electric capacity subelement (141).
5. the DC power supply device of city rail vehicle air-conditioning according to claim 4, is characterized in that: described precharge unit (14) also comprises the thyristor VT in parallel with pre-charge resistance R0; Described electric capacity subelement (141) comprises the electric capacity of multiple series connection, each Capacitance parallel connection grading resistor, completes capacitor charging by the switch controlling thyristor VT.
6. the DC power supply device of city rail vehicle air-conditioning according to claim 5, it is characterized in that: described input filter unit (15) comprises the first inductance L 1 and the first electric capacity C21, described first inductance L 1 is connected in the positive electrode bus of electrical network by fuse FU1, described first electric capacity C21 one end connects the positive electrode bus of electrical network, and the other end connects the negative electrode bus of power supply network.
7. the DC power supply device of city rail vehicle air-conditioning according to claim 6, it is characterized in that: described output filter circuit (132) comprises the second inductance L 2 and the second electric capacity C5, the 3rd electric capacity C6, the DC power supply that described rectifier circuit (131) exports exports to the DC bus powered of air-conditioning internal inverters after the filtering of described second inductance L 2 and the second electric capacity C5, the 3rd electric capacity C6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804386.7U CN204304788U (en) | 2014-12-17 | 2014-12-17 | A kind of DC power supply device of city rail vehicle air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804386.7U CN204304788U (en) | 2014-12-17 | 2014-12-17 | A kind of DC power supply device of city rail vehicle air-conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204304788U true CN204304788U (en) | 2015-04-29 |
Family
ID=53110295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420804386.7U Active CN204304788U (en) | 2014-12-17 | 2014-12-17 | A kind of DC power supply device of city rail vehicle air-conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204304788U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208640A (en) * | 2015-05-07 | 2016-12-07 | 中车大连电力牵引研发中心有限公司 | Secondary power system for city rail vehicle |
| CN106253734A (en) * | 2016-08-30 | 2016-12-21 | 保定卓尔电气有限公司 | A kind of low-voltage ride-through power source for frequency converter apparatus control system of improvement |
| CN107070282A (en) * | 2017-05-17 | 2017-08-18 | 中国铁道科学研究院 | A kind of AuCT, traction power unit and vehicle |
| CN109552047A (en) * | 2017-09-26 | 2019-04-02 | 株洲中车时代电气股份有限公司 | A kind of secondary power system for subway train |
| CN111308918A (en) * | 2018-12-12 | 2020-06-19 | 西安中车永电捷通电气有限公司 | Air conditioning unit data downloading system for railway passenger car |
| CN111443288A (en) * | 2020-04-27 | 2020-07-24 | 山东沃森电源设备有限公司 | Low-cost new energy automobile motor test power supply |
| CN111614273A (en) * | 2020-06-23 | 2020-09-01 | 山东泰开高压开关有限公司 | Device for suppressing high-frequency oscillation in common high-frequency bus converter and converter |
-
2014
- 2014-12-17 CN CN201420804386.7U patent/CN204304788U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208640A (en) * | 2015-05-07 | 2016-12-07 | 中车大连电力牵引研发中心有限公司 | Secondary power system for city rail vehicle |
| CN106253734A (en) * | 2016-08-30 | 2016-12-21 | 保定卓尔电气有限公司 | A kind of low-voltage ride-through power source for frequency converter apparatus control system of improvement |
| CN107070282A (en) * | 2017-05-17 | 2017-08-18 | 中国铁道科学研究院 | A kind of AuCT, traction power unit and vehicle |
| CN109552047A (en) * | 2017-09-26 | 2019-04-02 | 株洲中车时代电气股份有限公司 | A kind of secondary power system for subway train |
| CN111308918A (en) * | 2018-12-12 | 2020-06-19 | 西安中车永电捷通电气有限公司 | Air conditioning unit data downloading system for railway passenger car |
| CN111308918B (en) * | 2018-12-12 | 2024-05-31 | 西安中车永电捷通电气有限公司 | Data downloading system for air conditioning unit of railway passenger car |
| CN111443288A (en) * | 2020-04-27 | 2020-07-24 | 山东沃森电源设备有限公司 | Low-cost new energy automobile motor test power supply |
| CN111614273A (en) * | 2020-06-23 | 2020-09-01 | 山东泰开高压开关有限公司 | Device for suppressing high-frequency oscillation in common high-frequency bus converter and converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204304788U (en) | A kind of DC power supply device of city rail vehicle air-conditioning | |
| CN102368631B (en) | Efficient and reliable power supply architecture of data center electronic equipment | |
| CN107128183A (en) | A kind of electric EMU is met an urgent need tractive power supply system | |
| WO2016101380A1 (en) | Semi-vehicle-mounted rapid charging method and charging device thereof for electric bus | |
| CN102709994A (en) | Charge-discharge two-way power converter for battery for electric car | |
| CN102355140B (en) | Concatenated multilevel inverter circuit capable of realizing energy feedback and control method | |
| US9379566B2 (en) | Apparatus and method for controlling charge for battery | |
| CN210881738U (en) | High-power bidirectional charger | |
| CN206690886U (en) | A kind of electric EMU is met an urgent need tractive power supply system | |
| CN109888865B (en) | Ship electric power system | |
| CN103618327A (en) | Large power energy storage current transformer and main circuit thereof | |
| CN106711990A (en) | Vehicle concentrated power supply device and system | |
| CN103872761A (en) | Switching method of UPS power supplier and UPS power supplier | |
| CN212435428U (en) | Uninterruptible power supply | |
| CN203747494U (en) | Emergency power supply device | |
| CN105799529A (en) | Vehicle-mounted battery charger and DCDC integrated device for electric automobile | |
| CN103078537B (en) | Auxiliary converter cabinet circuit applicable to electric storage type subway engineering maintenance vehicle | |
| CN204089315U (en) | A kind of high-performance charging circuit of storage battery | |
| CN110707789A (en) | Charging and discharging converter for battery pack of electric automobile | |
| CN203522539U (en) | Driving power supply system for electric car | |
| CN207150225U (en) | A kind of elevator energy recovery system based on high voltage platform | |
| CN205249046U (en) | Converter dynamic braking reaches and goes up electric snubber circuit | |
| CN103208820A (en) | Bidirectional electric energy converter for intelligent power grid | |
| CN205051431U (en) | Ensure alternating current -direct current conversion equipment of incessant output of power | |
| Rahman et al. | Cascaded solid state transformer structure to power fast EV charging stations from medium voltage transmission lines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: DC power supply device in air conditioner of urban rail vehicle Effective date of registration: 20170111 Granted publication date: 20150429 Pledgee: Changsha Bank city branch of Limited by Share Ltd Pledgor: Changsha Guangyi Bianliu Technology Co., Ltd. Registration number: 2017430000004 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210421 Granted publication date: 20150429 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: CHANGSHA GUANGYI CONVERTING TECHNIQUE Co.,Ltd. Registration number: 2017430000004 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |