CN107317493A - A kind of electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy - Google Patents
A kind of electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy Download PDFInfo
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- CN107317493A CN107317493A CN201710497688.2A CN201710497688A CN107317493A CN 107317493 A CN107317493 A CN 107317493A CN 201710497688 A CN201710497688 A CN 201710497688A CN 107317493 A CN107317493 A CN 107317493A
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- electric energy
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- type electric
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- bridge circuit
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- 239000003990 capacitor Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
-
- H02J7/025—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy, the submodule block system transmitted including three-phase bridge arm, bridge arm reactor, based on non-contact type electric energy, wherein, each Self-cascading has a plurality of bridge arm reactors and a plurality of submodule block systems respectively on described three-phase bridge arm, the all respective reverse parallel connection of diode being provided with the submodule block system transmitted based on non-contact type electric energy in magnetic core, prime bridge circuit, storage capacitor, rear class bridge circuit, transmitting coil and the skeleton for being wound with coil, bridge circuit has switching tube.The battery bag that submodule block system can be transmitted with non-contact type electric energy is connected.The converter high modularization of the present invention, can reduce floor space using stack manner layout.High modularization greatly reduces cost, it is possible to problem module is changed at any time, greatly improves the life-span of whole electrical changing station, and the series connection of multi-tool block reduces the voltage class of single submodule, and security performance is greatly improved.
Description
Technical field:
The present invention relates to the charging and conversion electric technology of electricity field, more particularly to electric vehicle engineering, more particularly to electric automobile, specifically
Be it is a kind of based on non-contact type electric energy transmit electrical changing station Modular multilevel converter.
Background technology:
Energy and environment turn into the problem of presently most paying close attention to, and in order to solve the energy and environmentally friendly two hang-up, country puts into effect
Many measure Development of EV.But how charging electric vehicle is given, be a problem for allowing its " running farther " must face.
In the prior art, charging modes mainly have：Insert to fill and change and fill.But it is leading as the China such as urban sanitation, public transport electric automobile
Person, it is contemplated that matter of time, is charged unrealistic by the way of insertion charging pile.The powerup issue of Large Electric vehicle is solved,
Preferable method is to build electrical changing station, that is, utilizes the method for changing battery to automobile to replace very long charging process.But limitation
Some key factors that large-scale electrical changing station is built are such as：Fund input is big, and floor space is big, changes electric inconvenience, and electrical changing station place is inclined
Out-of-the-way, electrical changing station is built in down town without idle space, and it is longer to change the electric time, changes that electrical efficiency is low to be solved.
The content of the invention：
It is an object of the invention to provide a kind of electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy,
The described this electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy will solve to build in the prior art
If electrical changing station replacing battery replaces charging to cause, fund input is big, floor space is big, changes electric inconvenience, changes electric time length, changes electricity
The low technical problem of efficiency.
This electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy of the present invention, including three-phase
Bridge arm, a plurality of bridge arm reactors, a plurality of submodule block systems transmitted based on non-contact type electric energy, wherein, described three-phase
Each Self-cascading has a plurality of bridge arm reactors and a plurality of submodule block systems transmitted based on non-contact type electric energy respectively on bridge arm,
Submodule magnetic core, the first bridge circuit, energy storage electricity are provided with the described submodule block system transmitted based on non-contact type electric energy
First coil skeleton is provided with appearance, the second bridge circuit, first coil and first coil skeleton, described submodule magnetic core,
Described first coil is looped around on first coil skeleton, and the two ends of first coil are connected with the second bridge circuit, and described
Provided with four switching tubes in two bridge circuits, described respective four two poles with the second bridge circuit of four switching tubes difference
Pipe reverse parallel connection, described storage capacitor is in parallel with the second bridge circuit, and the output end of the second bridge circuit connects the first bridge-type
Provided with four switching tubes in circuit, described the first bridge circuit, described four switching tubes respectively with the first bridge circuit
Four diode reverse parallel connections.
Further, the electricity that the submodule block system linker transmitted based on non-contact type electric energy is transmitted in non-contact type electric energy
Matrix magnetic core, the second coil, the second coil rack, the 3rd bridge circuit and battery pack, institute are provided with Chi Bao, described battery bag
The second coil rack is provided with the matrix magnetic core stated, the second described coil encircling is on the second coil rack, described
The first coil coupling of two coil and submodule, the two ends of the second described coil are connected with the 3rd bridge circuit, the 3rd bridge-type
Provided with four switching tubes in circuit, described respective four diode reverses with the 3rd bridge circuit of four switching tubes difference
Parallel connection, the output end of the 3rd described bridge circuit is connected with battery pack.
Further, the submodule block system transmitted based on non-contact type electric energy is laid out in a stacked.
Further, switching tube uses wholly-controled device.
Further, submodule magnetic core and matrix magnetic core use same attribute magnetic conductivity identical material.The present invention and
There is technology to compare, its effect is positive and obvious.This of the present invention is used based on the electrical changing station that non-contact type electric energy is transmitted
Modular multilevel converter, including three-phase bridge arm, a plurality of bridge arm reactors, the submodule transmitted based on non-contact type electric energy
System.Modular multilevel converter is made up of three-phase, and per being made up of upper bridge arm and lower bridge arm, each bridge arm is by N number of submodule
Formed with bridge arm reactance cascade, and each bridge arm contains certain amount submodule as redundancy, at any time can be to intersystem problem
Module is changed.Reactor can filter out the harmonic wave produced in the converter course of work and suppress circulation between bridge arm.Submodule
Depending on quantity is according to specific energy grade and submodule self-energy demand, dilatation is simple.Submodule is by prime bridge circuit, energy storage
Electric capacity, rear class bridge circuit, transmitting coil is wound with the skeleton of coil.The switching tube of the bridge circuit（S1、S2、S3、S4、S5、
S6、S7And S8）Use wholly-controled device, and reverse parallel connection fast recovery diode respectively.By controlling S1、S2、S3、S4Switch
Input and excision of the state so as to control submodule.The upper and lower bridge arm of each phase is according to scale and battery energy level bag
Submodule and redundancy submodule containing certain amount, redundant module can be cut off to problem module at any time by control algolithm
And change.During normal work, single-phase bridge arm controls the submodule number of bridge arm and lower bridge arm input on per phase, you can realize and hand over
Stream side energy is exported to modules.Although the switching state of modules is not known in each bridge arm, a certain moment bridge arm
The number of modules of input determines substantially, so that the electric voltage equalization of three-phase bridge arm is to suppress the circulation between three bridge arms.
Submodule can connect the battery bag transmitted based on non-contact type electric energy, and the battery bag includes matrix magnetic core, receives line
The skeleton that encloses, be wound with coil, the bridge circuit being connected with coil, the battery pack being connected with bridge circuit.Described is connect based on non-
Battery bag, when that need to be charged to battery bag, can be inserted directly among submodule, positioned at submodule by the battery bag of touch electric energy transmission
Receiving coil among block in output the connection transmitting coil, with battery bag of bridge inverter main circuit constitutes the former secondary line of transformer
Receiving coil in circle, battery bag is charged by bridge rectifier to battery pack.
When making S in battery charging complete, submodule5And S7Or S6And S8It is in the conduction state, it is disconnected with electric capacity and connect
Connect, in battery bag, make S9And S11Or S10And S12 In on-state, loop is provided for dump energy, simultaneously switch off receiving coil with
The link circuit of battery.Completing can be directly by full electric battery roll after this process.In use, it is wound with the submodule of coil
Magnetic core is mechanically non-contacting with the battery bag magnetic core for being wound with coil, it is ensured that efficient quick in unloading process, simultaneously
Avoid the generation of electric arc.When battery to be charged need to be loaded into, switching tube S need to be made5、S6、S7And S8, switching tube S9、S10、S11With
S12Off-state is completely in, directly battery to be charged is loaded into, charging process is then carried out.Whole process, capacitance voltage it is balanced by
Specific control algolithm ensures.
The described transmitting coil transmitted based on non-contact type electric energy and the turn ratio number and winding method of receiving coil can roots
A certain degree of adjustment is carried out according to needs and actual conditions so that it is electric that the battery bag in the present invention can preferably adjust charging
Pressure.And contactless energy transmission means, the ZVT of switching tube can be realized in full-load range, can also be passed through
The sequential of controlling switch pipe reduces the flowing of reactive power between two bridge circuits, further improves the efficiency of transmission of electric energy.
The present invention proposes the electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy.Converter is high
Modularization is spent, can be laid out using stack manner, floor space is greatly reduced compared to traditional electrical changing station, can directly built
In the down town of an inch of land is an inch of gold.High modularization greatly reduces the cost of converter, and can be at any time to problem mould
Block is changed, and greatly improves the life-span of whole electrical changing station.Battery charging is based on non-contact type apparatus for transmitting electric energy, more sub
The series connection of module reduces the voltage class of single submodule, and security performance is greatly improved.Full electric battery in submodule
It can at any time be dismantled, while battery to be charged can be loaded into, change electric rapid convenient.Due to using contactless, dismantling and being loaded into
Journey is produced without electric arc, and abrasion very little, improves the life-span of submodule.
Brief description of the drawings：
Fig. 1 is that the topological structure of the electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy of the present invention is shown
It is intended to.
Fig. 2 is the submodule in the electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy of the present invention
The structural representation of block.
Fig. 3 is the electrical changing station Modular multilevel converter Neutron module transmitted based on non-contact type electric energy of the present invention
Connect the structural representation of battery bag.
Fig. 4 is the electrical changing station Modular multilevel converter Neutron module transmitted based on non-contact type electric energy of the present invention
The schematic diagram of stack manner layout.
Fig. 5 is the electrical changing station Modular multilevel converter Neutron module transmitted based on non-contact type electric energy of the present invention
The schematic diagram of stack manner layout during not connected battery bag.
Embodiment：
Embodiment 1:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the electrical changing station modularization of the invention based on non-contact type electric energy transmission is more
Level converter, including three-phase bridge arm, a plurality of bridge arm reactor L, a plurality of submodules transmitted based on non-contact type electric energy
System SM, wherein, each Self-cascading has a plurality of bridge arm reactor L and a plurality of based on noncontact respectively on described three-phase bridge arm
Submodule is provided with submodule the block system SM, the submodule block system SM transmitted based on non-contact type electric energy of the transmission of formula electric energy
Block magnetic core（Do not show in figure）, the first bridge circuit B1, storage capacitor C, the second bridge circuit B2, first coil L1 and first coil
Skeleton（Do not show in figure）, first coil skeleton is provided with described submodule magnetic core, and described first coil L1 is looped around
On one coil rack, first coil L1 two ends are connected with the second bridge circuit B2, are provided with the second described bridge circuit B2
Four switching tubes S5, S6, S7, S8, four described switching tubes S5, S6, S7, S8 are respectively each and in the second bridge circuit B2
Four diode L5, L6, L7, L8 reverse parallel connections, described storage capacitor C is in parallel with the second bridge circuit B2, the second bridge-type electricity
In road B2 output end connection the first bridge circuit B1, the first described bridge circuit B1 provided with four switching tube S1, S2, S3,
S4, described four switching tubes S1, S2, S3, S4 are anti-with four diodes L1, L2, L3, L4 in the first bridge circuit B1 respectively
To parallel connection.
Further, what the submodule block system SM connections transmitted based on non-contact type electric energy were transmitted based on non-contact type electric energy
Matrix magnetic core is provided with battery bag, described battery bag（Do not show in figure）, the second coil L2, the second coil rack（In figure not
Show）, the 3rd bridge circuit B3 and battery pack VCC, be provided with the second coil rack, the second described line in described matrix magnetic core
Circle L2 is looped around on the second coil rack, described the second coil L2 and submodule SM first coil L1 couplings, and described the
Two coil L2 two ends are connected with the 3rd bridge circuit B3, in the 3rd bridge circuit B3 provided with four switching tube S9, S10, S11,
S12, described four switching tubes S9, S10, S11, S12 respectively each and four diode L9 in the 3rd bridge circuit B3,
L10, L11, L12 reverse parallel connection, the output end of the 3rd described bridge circuit B3 are connected with battery pack VCC.
Further, the submodule block system SM transmitted based on non-contact type electric energy is laid out in a stacked.
Further, switching tube S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12 uses full-control type device
Part.
Further, submodule magnetic core and matrix magnetic core use same attribute magnetic conductivity identical material.The change of the present invention
Parallel operation high modularization, can be laid out using stack manner, and floor space is greatly reduced compared to traditional electrical changing station, can be straight
Construction is connect in the down town of an inch of land is an inch of gold.High modularization greatly reduces the cost of converter, and can be right at any time
Problem module is changed, and greatly improves the life-span of whole electrical changing station.Battery charging transmits dress based on non-contact type electric energy
Put, the series connection of multi-tool block reduces the voltage class of single submodule, security performance is greatly improved.Expiring in submodule
Battery can be dismantled at any time, while battery to be charged can be loaded into, change electric rapid convenient.Due to using contactless, dismounting
Loading process is produced without electric arc, and abrasion very little, improves the life-span of submodule.
Claims (5)
1. a kind of electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy, including three-phase bridge arm, plural number
Individual bridge arm reactor, a plurality of submodule block systems transmitted based on non-contact type electric energy, it is characterised in that：Described three-phase bridge arm
Upper Self-cascading each respectively has a plurality of bridge arm reactors and a plurality of submodule block systems transmitted based on non-contact type electric energy, described
The submodule block system transmitted based on non-contact type electric energy in be provided with submodule magnetic core, the first bridge circuit, storage capacitor, the
First coil skeleton is provided with two bridge circuits, first coil and first coil skeleton, described submodule magnetic core, it is described
First coil is looped around on first coil skeleton, and the two ends of first coil are connected with the second bridge circuit, the second described bridge-type
Provided with four switching tubes in circuit, described respective four diode reverses with the second bridge circuit of four switching tubes difference
Parallel connection, described storage capacitor is in parallel with the second bridge circuit, and the output end of the second bridge circuit connects the first bridge circuit, institute
Provided with four switching tubes in the first bridge circuit for stating, described four switching tubes respectively with four two in the first bridge circuit
Pole pipe reverse parallel connection.
2. the electrical changing station Modular multilevel converter as claimed in claim 1 transmitted based on non-contact type electric energy, it is special
Levy and be：The battery that the described submodule block system linker transmitted based on non-contact type electric energy is transmitted in non-contact type electric energy
Matrix magnetic core, the second coil, the second coil rack, the 3rd bridge circuit and battery pack are provided with bag, described battery bag, it is described
Matrix magnetic core in be provided with the second coil rack, the second described coil encircling is on the second coil rack, described second
The first coil coupling of coil and submodule, the two ends of the second described coil are connected with the 3rd bridge circuit, the 3rd bridge-type electricity
Provided with four switching tubes in road, described respective four diode reverses with the 3rd bridge circuit of four switching tubes difference are simultaneously
Connection, the output end of the 3rd described bridge circuit is connected with battery pack.
3. the electrical changing station Modular multilevel converter as claimed in claim 1 transmitted based on non-contact type electric energy, it is special
Levy and be：The described submodule block system transmitted based on non-contact type electric energy is laid out in a stacked.
4. the electrical changing station Modular multilevel converter as claimed in claim 2 transmitted based on non-contact type electric energy, it is special
Levy and be：Described switching tube uses wholly-controled device.
5. the electrical changing station Modular multilevel converter as claimed in claim 2 transmitted based on non-contact type electric energy, it is special
Levy and be：Described submodule magnetic core and matrix magnetic core use same attribute magnetic conductivity identical material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497688.2A CN107317493A (en) | 2017-06-27 | 2017-06-27 | A kind of electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497688.2A CN107317493A (en) | 2017-06-27 | 2017-06-27 | A kind of electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy |
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| Publication Number | Publication Date |
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| CN107317493A true CN107317493A (en) | 2017-11-03 |
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|---|---|---|---|
| CN201710497688.2A Pending CN107317493A (en) | 2017-06-27 | 2017-06-27 | A kind of electrical changing station Modular multilevel converter transmitted based on non-contact type electric energy |
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| CN105610325A (en) * | 2016-01-28 | 2016-05-25 | 中国电力科学研究院 | Modular multilevel converter for middle-high voltage direct-current grid connection of high-power sodium-sulfur battery |
| CN106043247A (en) * | 2016-06-23 | 2016-10-26 | 蔚来汽车有限公司 | Modular extensible electrical changing station equipment and charging rack |
| CN207117498U (en) * | 2017-06-27 | 2018-03-16 | 西安电子科技大学 | Electrical changing station modular multilevel converting means based on non-contact type electric energy transmission |
-
2017
- 2017-06-27 CN CN201710497688.2A patent/CN107317493A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092343A1 (en) * | 2008-01-23 | 2009-07-30 | Ina Fischer | Method for changing batteries in electric vehicles and battery changing station |
| CN102158105A (en) * | 2011-04-14 | 2011-08-17 | 北京交通大学 | High-power factor bidirectional single-stage full bridge converter and control method thereof |
| CN103633717A (en) * | 2012-08-24 | 2014-03-12 | 国家电网公司 | Charging system of electric car charging station |
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