CN204376511U - Based on the large power, electrically electrical automobile quick charger of universal frequency converter benchmark - Google Patents
Based on the large power, electrically electrical automobile quick charger of universal frequency converter benchmark Download PDFInfo
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- CN204376511U CN204376511U CN201520123079.7U CN201520123079U CN204376511U CN 204376511 U CN204376511 U CN 204376511U CN 201520123079 U CN201520123079 U CN 201520123079U CN 204376511 U CN204376511 U CN 204376511U
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Abstract
Based on the large power, electrically electrical automobile quick charger of universal frequency converter benchmark, relate to technical field of new energies, comprise universal frequency converter unit, high frequency transformer unit, three-phase high-frequency rectification unit and output filtering unit, the uncontrollable rectifier bridge input of three-phase of universal frequency converter unit connects AC power, the output of universal frequency converter unit is connected to the input of three-phase high-frequency rectification unit by high frequency transformer unit, an output of three-phase high-frequency rectification unit is connected with one end of diode, the other end of diode and another output of three-phase high-frequency rectification unit arrange rechargeable battery access interface respectively.The utility model uses the high frequency converter technique, SPWM modulation technique, digital communication technology etc. of IGBT power device, not only can the expansion of simple realization power, reduce the pollution of mains by harmonics, and transformer is miniaturized, reduce the volume of whole system, greatly improve power density, the fair electric demand of different new energy car battery can be met.
Description
Technical field
The utility model relates to technical field of new energies, particularly carries out the charging device charged for vehicle.
Background technology
The solution of the quick charge problem of electric automobile is one of key issue of industry development, and for meeting quick charge requirement, ordinary passenger car needs 50KW-100KW quick charger, and electric bus then needs more than 200KW quick charger.Therefore an of paramount importance technology of quick charger is high-power AC/DC switch technology.
Typical high power charge power supply realizes high-power AC/DC mainly through the mode of controllable silicon phase control rectifier or high-frequency I GBT phase-shifting full-bridge Switching Power Supply and converts.Although controllable silicon phase-controlled power device is simple, reliability is high, bulky, efficiency is lower, harmonic pollution is serious, although high-frequency I GBT Switching Power Supply solves the shortcoming of above-mentioned power frequency supply, power grade is less, is difficult to realize high-power.
Utility model content
The utility model object is to provide a kind of large power, electrically electrical automobile RAPID CHARGING POWER SUPPLY of universal frequency converter benchmark, to overcome above prior art Problems existing.
The utility model comprises universal frequency converter unit, high frequency transformer unit, three-phase high-frequency rectification unit and output filtering unit, the uncontrollable rectifier bridge input of three-phase of universal frequency converter unit connects AC power, the output of universal frequency converter unit is connected to the input of three-phase high-frequency rectification unit by high frequency transformer unit, an output of three-phase high-frequency rectification unit is connected with one end of diode, and the other end of diode and another output of three-phase high-frequency rectification unit arrange rechargeable battery access interface respectively.
The utility model utilizes ripe converter technology, and sinewave inverter combines with high frequency transformer, realizes the quick charge of high-power simple and reliablely, solves a charging difficult problem for electric automobile.The utility model uses the high frequency converter technique, SPWM modulation technique, digital communication technology etc. of IGBT power device, not only can the expansion of simple realization power, reduce the pollution of mains by harmonics, and transformer is miniaturized, reduce the volume of whole system, greatly improve power density, the fair electric demand of different new energy car battery can be met.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the utility model medium/high frequency transformer voltage between lines oscillogram.
Embodiment
As shown in Figure 1, the utility model is made up of universal frequency converter unit 1, three-phase high frequency transformer unit 2, three-phase high-frequency rectification unit 3, output filtering unit 4, diode 5 and battery 6.
The uncontrollable rectifier bridge of three-phase of 380V three-phase alternating-current supply access universal frequency converter unit 1, by tandem electric inductance to improve power factor.The other end of passive PFC inductance receives capacitive bus unit by copper bar, and DC bus also connects the half-bridge cells that lead-out terminal receives three groups of IGBT respectively, and its neutral point receives the simple of three-phase high frequency transformer unit 2 respectively.The sine wave that high frequency transformer unit 2 exports is connected respectively to the neutral point of the half-bridge of three-phase high-frequency rectification unit 3, dither waveform after rectification, after output filtering unit 4 filtering high fdrequency component, is charged to battery 6 to be charged by series diode 5.
Inverter bridge adopts SPWM modulation system, and the elementary of transformer penetrates current Hall, to protect universal frequency converter unit.Adopt Digital Control, possess CAN-USB complex communication interface, simultaneous adaptation vehicle-mounted control and computer monitoring.
The passive PFC inductance of universal frequency converter unit 1 makes electric current and voltage in phase, reduces the harmonic wave of electrical network, improves the utilance of electric energy.Three-phase IGBT full-bridge inverting adopts SPWM modulation, and control waveform is as the square-wave waveform of Fig. 2, and the waveform of the elementary line voltage of three-phase high frequency transformer unit 2 is as the sine waveform of Fig. 2.Three-phase high frequency transformer unit 2 is the sine wave of 1KHz for transmitted frequency, and the no-load voltage ratio of change transformer, can be applicable to the battery of various different brackets voltage.The sine wave of three-phase high frequency produces dither waveform by three-phase high-frequency rectification unit 3, and output filtering unit filtering high fdrequency component, is charged to battery by series diode.
Three-phase high frequency transformer unit 2 transmits the sine wave of 1KHz, and compared with the silicon controlled rectifier of power frequency, the volume of transformer is miniaturized.The output often organizing inverter bridge of general converter unit 1 arranges current sensor, for the protection to IGBT.Simultaneously from battery-end sampling current, voltage signal feeds back to general converter unit 1 and carries out Digital Control.Simultaneously due to the technology comparative maturity of general converter unit 1, easily realize powerful seriation.By the no-load voltage ratio of the transformer of the power grade and high frequency transformer unit 2 of reasonably matching general converter unit 1, the demand to different voltage, power grade New energy electric big bus can be met.
Claims (1)
1. based on the large power, electrically electrical automobile quick charger of universal frequency converter benchmark, it is characterized in that comprising universal frequency converter unit, high frequency transformer unit, three-phase high-frequency rectification unit and output filtering unit, the uncontrollable rectifier bridge input of three-phase of universal frequency converter unit connects AC power, the output of universal frequency converter unit is connected to the input of three-phase high-frequency rectification unit by high frequency transformer unit, an output of three-phase high-frequency rectification unit is connected with one end of diode, the other end of diode and another output of three-phase high-frequency rectification unit arrange rechargeable battery access interface respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520123079.7U CN204376511U (en) | 2015-03-03 | 2015-03-03 | Based on the large power, electrically electrical automobile quick charger of universal frequency converter benchmark |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520123079.7U CN204376511U (en) | 2015-03-03 | 2015-03-03 | Based on the large power, electrically electrical automobile quick charger of universal frequency converter benchmark |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204376511U true CN204376511U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520123079.7U Expired - Fee Related CN204376511U (en) | 2015-03-03 | 2015-03-03 | Based on the large power, electrically electrical automobile quick charger of universal frequency converter benchmark |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204376511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11299051B2 (en) | 2017-05-05 | 2022-04-12 | Siemens Energy AS | Electric charging system and method |
-
2015
- 2015-03-03 CN CN201520123079.7U patent/CN204376511U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11299051B2 (en) | 2017-05-05 | 2022-04-12 | Siemens Energy AS | Electric charging system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20190303 |