CN102157760A - Quick charging method of electric automobile based on flexible direct current (DC) transmission - Google Patents
Quick charging method of electric automobile based on flexible direct current (DC) transmission Download PDFInfo
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- CN102157760A CN102157760A CN2011100655654A CN201110065565A CN102157760A CN 102157760 A CN102157760 A CN 102157760A CN 2011100655654 A CN2011100655654 A CN 2011100655654A CN 201110065565 A CN201110065565 A CN 201110065565A CN 102157760 A CN102157760 A CN 102157760A
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- direct current
- electric automobile
- flexible
- quick charging
- transmission
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a quick charging method of an electric automobile based on flexible direct current (DC) transmission, and the method comprises the following steps: using a flexible DC transmission system to convert an alternative current (AC) provided by an AC system into a stable DC in a converter station at a sending end, transmitting the electric energy to the other side of a DC transmission cable through the DC transmission cable, converting the DC into the AC in a converter station at a receiving end, and then sending the AC to the other AC system; connecting a DC quick charging device with the DC transmission cable of the flexible DC transmission system to obtain a DC power supply; and using the DC quick charging device to provide the DC power supply for the power battery pack of the electric automobile through an electric automobile charging interface so as to realize the quick charging of the electric automobile. According to the quick charging method of the electric automobile based on flexible DC transmission, a high-power supply can be provided for the electric automobile battery pack while a charging appliance for the electric automobile is flexibly arranged to realize the quick charging, thereby effectively promoting the popularization and application of the electric automobile.
Description
Technical field
The invention belongs to the charging electric vehicle method, especially relate to electric vehicle rapid charging method and technology field based on flexible DC power transmission.
Background technology
Along with the anxiety of petroleum resources and the development of battery technology, be the of new generation energy-conservation inexorable trend that becomes big automobile industry development with environmentally friendly vehicle of representative with the electric automobile.Charging system is the important foundation support system of electric automobile for the electric automobile operation provides energy supply.
Centralized charging station need set up special circuit and be equipped with power equipment, and floor space is big, cost is high, can't can not satisfy the demand that electric automobile charges at any time with communal facility flexible configuration such as road, parking lot, sub-districts.Existing alternating-current charging pile provides AC power for vehicle-mounted charging device for electric vehicles, and charge power is less, charging rate is slow.
If a kind of method of electric vehicle rapid charging more flexibly can be provided, possess simultaneously and charge fast and the characteristics of electrically-charging equipment flexible arrangement, must promote the application development of electric automobile.
Summary of the invention
The purpose of this invention is to provide electric vehicle rapid charging method, when arranging the charging electric vehicle facility more neatly, realize electric vehicle rapid charging based on flexible DC power transmission.
The present invention is achieved through the following technical solutions:
Electric vehicle rapid charging method based on flexible DC power transmission, this method is: the alternating current that adopts the flexible DC power transmission system in the sending end current conversion station AC system to be provided becomes galvanic current, by the direct current transportation cable electric energy is delivered to the opposite side of direct current transportation cable, in the receiving end current conversion station, direct current is transformed into alternating current and delivers to another AC system; The direct current quick charge device is connected with the direct current transportation cable of flexible DC power transmission system, obtains DC power supply; And provide DC power supply by the charging electric vehicle interface for the electric automobile power battery group with the direct current quick charge device, realize electric vehicle rapid charging.
The invention has the beneficial effects as follows, can when arranging the charging electric vehicle facility more neatly, provide large power supply by method provided by the invention for the batteries of electric automobile group, realize electric vehicle rapid charging, thereby effectively promote applying of electric automobile.
According to the present invention, the alternating current that the flexible DC power transmission system provides AC system in the sending end current conversion station becomes galvanic current, electric energy is delivered to the opposite side of cable by the direct current transportation cable, in the receiving end current conversion station, direct current is transformed into alternating current and delivers to another AC system, thereby realize flexible DC power transmission; According to the layout demand of charging electric vehicle facility, can set up the direct current transportation cable flexibly; So long as the place of direct current transportation cable process all can be arranged a plurality of direct current quick charge devices that are connected with the direct current transportation cable easily, thereby realize electric vehicle rapid charging.
Below in conjunction with the drawings and specific embodiments to further detailed explanation of the specific embodiment of the present invention.
Description of drawings:
Fig. 1 is the connection diagram of direct current quick charge device and flexible DC power transmission system;
Fig. 2 is a kind of basic structure schematic diagram of direct current quick charge device.
Embodiment:
As shown in Figure 1, direct current quick charge device 6 is connected with the direct current transportation cable 5 of flexible DC power transmission system, obtains DC power supply; Direct current quick charge device 6 provides DC power supply by the charging electric vehicle interface for the power battery pack of electric automobile 7, realizes electric vehicle rapid charging.
The flexible DC power transmission system becomes the alternating current that AC system 1 provides into galvanic current in sending end current conversion station 3, direct current is delivered to electric energy by direct current transportation cable 5 opposite side of cable, in receiving end current conversion station 4, direct current is transformed into alternating current and delivers to AC system 2 or offer AC load, thereby realize flexible DC power transmission.Voltage source converter in the sending end current conversion station 3 is as rectifier, and the voltage source converter in the receiving end current conversion station 4 is as inverter, and the critical piece of voltage source converter comprises full control converter bridge, dc bus capacitor device; Each brachium pontis of full control converter bridge is formed by a plurality of igbts (IGBT) or GTO turn-off devices such as (GTO), can satisfy the capacity requirement under certain technical conditions; The dc bus capacitor device supports for converter provides voltage, and the stable of direct voltage is the assurance of whole converter reliably working.AC side converter transformer and change of current reactor play energy exchange tie and filter action between voltage source converter and AC system; The effect of wave filter on AC side is a filtering AC side harmonic wave.
According to the layout demand of charging electric vehicle facility, can set up direct current transportation cable 5 flexibly.For example, can arrange respectively at the highway two ends and sending end current conversion station and receiving end current conversion station set up the direct current transportation cable on the way.The place of direct current transportation cable process can be arranged easily all that a plurality of direct current quick charge devices are attached thereto to connect, thereby realizes electric vehicle rapid charging.
Direct current quick charge device 6 is realized and being connected of direct current system by being connected with direct current transportation cable 5, for the electric automobile power battery group provides high-power DC power supply.As embodiment, Fig. 2 shows a kind of basic structure of direct current quick charge device.This direct current quick charge device is connected to form by charging device monitoring and processing module and main circuit power supply; Be provided with the direct current voltage reulation module in the main circuit power supply, charging device monitoring and processing module are according to be connected information (information of rechargeable battery and voltage, current information etc.) the control direct current voltage reulation module that communication is obtained, the size of regulating output dc voltage with the BMS battery management system of electric automobile.
Claims (1)
1. based on the electric vehicle rapid charging method of flexible DC power transmission, it is characterized in that, this method is: the alternating current that adopts the flexible DC power transmission system in the sending end current conversion station AC system to be provided becomes galvanic current, by the direct current transportation cable electric energy is delivered to the opposite side of direct current transportation cable, in the receiving end current conversion station, direct current is transformed into alternating current and delivers to another AC system; The direct current quick charge device is connected with the direct current transportation cable of flexible DC power transmission system, obtains DC power supply; And provide DC power supply by the charging electric vehicle interface for the electric automobile power battery group with the direct current quick charge device, realize electric vehicle rapid charging.
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CN2011100655654A CN102157760A (en) | 2011-03-18 | 2011-03-18 | Quick charging method of electric automobile based on flexible direct current (DC) transmission |
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CN2011100655654A CN102157760A (en) | 2011-03-18 | 2011-03-18 | Quick charging method of electric automobile based on flexible direct current (DC) transmission |
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CN2011100655654A Pending CN102157760A (en) | 2011-03-18 | 2011-03-18 | Quick charging method of electric automobile based on flexible direct current (DC) transmission |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103178764A (en) * | 2012-09-26 | 2013-06-26 | 辽宁省电力有限公司大连供电公司 | Method and system for adjusting on-load tapping switch of flexible direct-current transmission connected transformer |
CN103633717A (en) * | 2012-08-24 | 2014-03-12 | 国家电网公司 | Charging system of electric car charging station |
CN105172614A (en) * | 2015-11-01 | 2015-12-23 | 李俊娇 | Flexible charging station of electric vehicle |
CN108493983A (en) * | 2018-06-01 | 2018-09-04 | 中国能源建设集团云南省电力设计院有限公司 | A kind of compact alternating current-direct current GIL substations |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101277839A (en) * | 2005-09-29 | 2008-10-01 | 丰田自动车株式会社 | Charge control apparatus, electrically powered vehicle and electric storage charge control method |
CN201312133Y (en) * | 2008-10-29 | 2009-09-16 | 比亚迪股份有限公司 | Charging device, energy-storing device and charging station |
-
2011
- 2011-03-18 CN CN2011100655654A patent/CN102157760A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101277839A (en) * | 2005-09-29 | 2008-10-01 | 丰田自动车株式会社 | Charge control apparatus, electrically powered vehicle and electric storage charge control method |
CN201312133Y (en) * | 2008-10-29 | 2009-09-16 | 比亚迪股份有限公司 | Charging device, energy-storing device and charging station |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103633717A (en) * | 2012-08-24 | 2014-03-12 | 国家电网公司 | Charging system of electric car charging station |
CN103178764A (en) * | 2012-09-26 | 2013-06-26 | 辽宁省电力有限公司大连供电公司 | Method and system for adjusting on-load tapping switch of flexible direct-current transmission connected transformer |
CN103178764B (en) * | 2012-09-26 | 2016-02-24 | 辽宁省电力有限公司大连供电公司 | The control method of flexible DC power transmission tietransformer on load tap changer and system |
CN105172614A (en) * | 2015-11-01 | 2015-12-23 | 李俊娇 | Flexible charging station of electric vehicle |
CN108493983A (en) * | 2018-06-01 | 2018-09-04 | 中国能源建设集团云南省电力设计院有限公司 | A kind of compact alternating current-direct current GIL substations |
CN108493983B (en) * | 2018-06-01 | 2024-01-30 | 中国能源建设集团云南省电力设计院有限公司 | Compact AC/DC GIL transformer substation |
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Application publication date: 20110817 |