CN109546721A - Charging unit and control method - Google Patents
Charging unit and control method Download PDFInfo
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- CN109546721A CN109546721A CN201810036347.XA CN201810036347A CN109546721A CN 109546721 A CN109546721 A CN 109546721A CN 201810036347 A CN201810036347 A CN 201810036347A CN 109546721 A CN109546721 A CN 109546721A
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- 230000005611 electricity Effects 0.000 claims abstract description 163
- 238000006243 chemical reaction Methods 0.000 claims description 40
- 238000001514 detection method Methods 0.000 claims description 35
- 238000012790 confirmation Methods 0.000 claims description 24
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 2
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- H02J7/022—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses a kind of charging unit and control method, the second auxiliary bridge arm that the charging unit contains the first auxiliary bridge arm being connected between second port and the second module and is connected between third port and third module, therefore when input AC electricity is single phase ac electric energy, charging unit can at least be converted input AC electricity using the first module, to charge to battery, it is on the contrary, when input AC electricity is threephase AC electric energy, in addition to the first module can will be other than corresponding single-phase alternating current be converted in input AC electricity, also the first auxiliary bridge arm of control and the second auxiliary bridge arm do not work respectively for second module and third module, so that the second module and third module also convert corresponding single-phase alternating current in input AC electricity respectively.
Description
Technical field
The disclosure is about a kind of charging unit, in particular to a kind of to be applied to electric vehicle, and compatible single-phase input power supply
And three-phase input power supply is come the charging unit that charges.
Background technique
Due to the new line of environmental consciousness, electric vehicle increasingly popularization, and in order to be carried out to the battery inside electric vehicle
It charges, all can include charging unit in electric vehicle.Existing electronic automobile-used charging unit according to received input power phase
Number is different and can be divided into single-phase charging unit and three-phase charging unit, wherein the output power of single-phase charging unit is usually
3.3kW or 6.6kW, and the output power of three-phase charging unit is usually 10kW.And the promotion of the cruising ability with electric vehicle,
The grade of the output power of the charging unit of electric vehicle also increases therewith, therefore high power charging unit becomes the master of existing market in fact
Stream.
So since the input power that existing three-phase charging unit is only capable of receiving three-phase charges, work as electric vehicle institute
When the number of phases of input power provided by the charging station of stop is single-phase input power supply, electric vehicle will be unable to carry out charging operation,
And in order to solve this problem, existing way is only that the electric vehicle with three-phase charging unit is equipped with to one single-phase portable to fill
Single-phase input power supply is provided to three-phase charging unit whereby by electric appliance, but this mode easily causes user to have electricity consumption when in use
The doubt of safety, and the missing with increased costs.
In addition, though existing three-phase charging unit can receive single-phase input power supply using single-phase portable charger,
But since three-phase charging unit is comprising three modules, converted in three-phase input power supply using each module in design
Corresponding single-phase alternating current, therefore when three-phase charging unit receives single-phase input power supply, three-phase charging unit is merely with wherein
One module is run, and since the output power that single module is exported has its limitation, cause three-phase charging unit connecing
Its output power can not increase in response to actual demand, such as the electric current of input power when receiving single-phase input power supply, Lai Tisheng, therefore existing
There is the output power of three-phase charging unit to be limited in fact.
Therefore, how to develop a kind of charging unit for overcoming disadvantages mentioned above and control method, actually demand urgent at present.
Summary of the invention
The main purpose of the disclosure is to provide a kind of charging unit, thus solve existing charging unit be only capable of receiving it is single-phase
Or three-phase input power supply charges, and can not compatible with single phase input power and three-phase input power supply, lead to cost increase
Missing, and existing charging unit is solved if three-phase charging unit and when receiving single-phase input power supply, output power has no
Method is promoted and the missing that is limited.
In order to achieve the above object, a broader embodiment of the disclosure is to provide a kind of charging unit, charging equipment is received
Generated input AC electricity charges, and includes: input terminal, includes first port, second port, third port, middle line
Port and control port, wherein input terminal passes through first port and middle line end when input AC electricity is single phase ac electric energy
Mouthful input AC electricity is received, when input AC electricity is threephase AC electric energy, input terminal passes through first port, second port and the
Three ports receive corresponding single-phase alternating current in input AC electricity respectively；First module is connect with first port and middle line port；
Second module is connect with second port and middle line port；Third module is connect with third port and middle line port, wherein first
The output end of module, the second module and third module three is connected with each other, and first module, second module and the third mould
Block confirms that the input AC electricity is the single phase ac electric energy or the threephase AC electric energy respectively；First auxiliary bridge arm, is connected to the
Between Single port and the second module；Second auxiliary bridge arm, is connected between first port and third module；And detection module,
It connect with control port via the size of current of control port confirmation input alternating current, will confirm that result sends the first mould to
Block, the second module and third module make first module, second module and the third module according to the corresponding control of confirmation result
The operation of first auxiliary bridge arm and the second auxiliary bridge arm；
Wherein, when input AC electricity is threephase AC electric energy, the first module runs and converts corresponding in input AC electricity
Single-phase alternating current, and the second module and third module control respectively the first auxiliary bridge arm and second auxiliary bridge arm do not work,
The second module and third module is set to convert corresponding single-phase alternating current in input AC electricity respectively, when input AC electricity is blow-up
Galvanic electricity energy, and when the output end of the first module, the second module and third module three is connected in parallel, the first module runs and converts
Input AC electricity, and the size of current of input AC electricity that is confirmed according to detection module of the second module and third module and control respectively
The first auxiliary bridge arm of system and the second auxiliary bridge arm selectively work or do not work, with making the second module and third module selective
It runs and converts input AC electricity, when input AC electricity is single phase ac electric energy, and the first module, the second module and third module
When the output end of three is connected in series, the second module and third module control the first auxiliary bridge arm and the second auxiliary bridge arm respectively
Work, and the first module, the second module and third module are operated together and convert input AC electricity.
In order to achieve the above object, another broader embodiment of the disclosure is to provide a kind of control method, it is suitable for charging
Device, wherein charging unit receives input AC electricity caused by a charging equipment and charges, and charging unit includes input terminal,
Input terminal includes first port, second port and third port, and charging unit also includes the first mould connecting with first port
Block, the third module connecting with third port, is connected to first port and the second module at the second module connecting with second port
Between first auxiliary bridge arm and be connected between first port and third module second auxiliary bridge arm, wherein the first module,
The output end of second module and third module three are connected with each other,
Wherein control method includes step: (a) when receiving input AC electricity, confirmation input alternating current is single-phase alternating current
Energy or threephase AC electric energy execute step (b) when confirmation input alternating current is threephase AC electric energy, when confirmation input alternating current
When for single phase ac electric energy, execute step (c)；(b) corresponding single-phase alternating current in the first module conversion input AC electricity, and control
The first auxiliary bridge arm of system and the second auxiliary bridge arm do not work, and convert the second module and third module respectively in input AC electricity
Corresponding single-phase alternating current；And (c) the first module is run, and the first auxiliary bridge arm of control and the second auxiliary bridge arm selection respectively
It works or does not work to property, run with making the second module and third module selective.
In order to achieve the above object, another broader embodiment of the disclosure is to provide a kind of control method, filled suitable for one
Electric installation, wherein charging unit receives input AC electricity caused by charging equipment and charges for single phase ac electric energy, fills
Electric installation include input terminal, input terminal include first port and middle line port, charging unit also include with first port and in
The first module, the second module, third module, the first service bridge being connected between input terminal and the second module of line end mouth connection
Arm and the second auxiliary bridge arm being connected between input terminal and third module, wherein the first module, the second module and third
The output end of module three is connected in parallel,
Wherein control method includes step: (d) when input terminal receives input AC electricity, the first module of control is run；(e)
Judge whether the electric current of input AC electricity is less than or equal to the first electric current preset value, if the electric current of input AC electricity is less than or equal to first
Electric current preset value thens follow the steps (f), no to then follow the steps (g)；(f) control first assists bridge arm and the second auxiliary bridge arm not
Work, runs the second module and third module not；(g) judge whether the electric current of input AC electricity is greater than the first electric current preset value
And it is less than or equal to the second electric current preset value, if the electric current of input AC electricity is greater than the first electric current preset value and is less than or equal to the second electricity
When flowing preset value, execute step (h), it is no to then follow the steps (i)；(h) control the first auxiliary bridge arm work and control second are auxiliary
It helps bridge arm not work, run the second module and the first wired in parallel and converts input AC electricity, and run third module not；
And (i) the first auxiliary bridge arm of control and the second auxiliary bridge arm work, make the second module, third module and the first wired in parallel
Operation and conversion input AC electricity.
Detailed description of the invention
Fig. 1 is the circuit structure diagram of the charging unit of disclosure preferred embodiment.
Fig. 2 is the flow diagram of the control method applied to charging unit shown in FIG. 1.
Fig. 3 is the flow diagram of the sub-step of step shown in Fig. 2 (S3).
When Fig. 4 by the received input AC electricity of charging unit shown in FIG. 1 is single phase ac electric energy, it is applied to the charging
The flow diagram of another control method of device.
Fig. 5 is the circuit structure diagram of the charging unit of the second preferred embodiment of the disclosure.
Fig. 6 is the circuit structure diagram of the charging unit of disclosure third preferred embodiment.
Fig. 7 is the circuit structure diagram of the charging unit of the 4th preferred embodiment of the disclosure.
Description of symbols:
1: charging unit
2: input terminal
21: first port
22: second port
23: third port
24: middle line port
25: control port
250: the first detection mouths
251: the second detection mouths
31: the first modules
311: the first bridge arms
312: the second bridge arms
32: the second modules
321: the first bridge arms
322: the second bridge arms
33: third module
331: the first bridge arms
332: the second bridge arms
41: the first auxiliary bridge arms
42: the second auxiliary bridge arms
5: detection module
P: input AC electricity
M11, M13, M21, M23, M31, M33: upper switch pipe
M12, M14, M22, M24, M32, M34: lower switch pipe
M25, M26, M35, M36: controllable switch components
O1~O8: midpoint
C1, C2, C3: capacitor
L1, L2, L3: inductance
6: conversion circuit
7: control unit
S1~S3, S20~S25, M1~M6: step
Specific embodiment
The some exemplary embodiments for embodying disclosure features and advantages will describe in detail in the explanation of back segment.It should be understood that
It is that the disclosure there can be various variations in different embodiments, does not all depart from the scope of the present disclosure, and therein
Illustrate and illustrate to be illustrated as being used in itself, and nand architecture is in the limitation disclosure.
Referring to Fig. 1, its electrical block diagram for the charging unit of disclosure preferred embodiment.As shown, this
Disclosed charging unit 1 can be but be not limited to the application in electric vehicle, and can receive a charging equipment (not shown), such as charge
Stand, generated input AC electricity P, charging unit 1 input AC electricity P to be converted, whereby generate output electric energy and
It charges to the battery (not shown) of electric vehicle, wherein input AC electricity P can be but not be limited to single-phase alternating current energy or three
Phase AC energy.Charging unit 1 includes input terminal 2, the first module 31, the second module 32, the auxiliary bridge arm of third module 33, first
41, the second auxiliary bridge arm 42 and detection module 5.
Input terminal 2 can be connected with an output port of charging equipment, such as charging gun and receive charging equipment and be provided
Input AC electricity P, and include first port 21, second port 22, third port 23, middle line port 24 and control port
25.In input AC electricity P be single phase ac electric energy when, input terminal 2 be received by first port 21 and middle line port 24 it is defeated
Enter alternating current P, and when input AC electricity P is threephase AC electric energy, input terminal 2 is by first port 21, second port 22
And third port 23 receives corresponding single-phase alternating current in input AC electricity P respectively.It can then reflect input as control port 25
The size of current of alternating current P.Detection module 5 can be used for confirmation input end 2 received input AC electricity P size of current.In
In some embodiments, the middle line port 24 of input terminal 2 can be connected by a middle line (not shown) with the output port of charging equipment
It connects.
First module 31 is connect with first port 21 and middle line port 24, to the received electricity of conversion when operation
Energy.Second module 32 is connect with second port 22 and middle line port 24, to the received electric energy of conversion when operation.The
Three modules 33 are connect with third port 23 and middle line port 24, to the received electric energy of conversion when operation.In addition, the
The output end of 33 three of one module 31, the second module 32 and third module is more connected with each other, such as is connected to parallel way
The battery of electric vehicle.And it is single that first module 31, the second module 32 and third module 33, which can distinguish confirmation input alternating current P,
Phase AC energy or threephase AC electric energy.In some embodiments, the first module 31, the second module 32, third module 33 can divide
It is not made of single phase converter.In addition, no matter input AC electricity P is single phase ac electric energy or threephase AC electric energy, the first mould
Block 31 all runs and carries out the conversion of electric energy.And in some embodiments, the first module 31, the second module 32 and third module 33
Output power can be but it is unlimited be respectively 3.3kW.
First auxiliary bridge arm 41 is connected between first port 21 and the second module 32.Second auxiliary bridge arm 42 is connection
Between first port 21 and third module 33.Detection module 5 is to connect with control port 25 and communicate with control port 25,
Size of current for confirmation input alternating current P.In addition, detection module 5 can also be with the first module 31, the second module 32 and
Three modules 33 connection, by the confirmation result of the size of current of input AC electricity P be sent to the first module 31, the second module 32 and
Third module 33, and the second module 32 and third module 33 more respectively correspond control the first auxiliary bridge arm 41 according to confirmation result
And second auxiliary bridge arm 42 operation.
In above-described embodiment, the output end of first module, second module and third module three is in parallel connects
It connects.
It further explains, when defeated end 2 is received as three-phase by first port 21, second port 22 and third port 23
When the input AC electricity P of AC energy, the first module 31 is operation at this time, therefore the first module 31 is to be received first port 21
To input AC electricity P in corresponding single-phase alternating current converted, while because of the first module 31, the second module 32 and third
It is threephase AC electric energy that module 33, which distinguishes confirmation input alternating current P, and the second module 32 and third module 33 just control the respectively
One auxiliary bridge arm 41 and the second auxiliary bridge arm 42 do not work, and since the first auxiliary bridge arm 41 does not work, therefore first port 21 receives
It corresponding single-phase alternating current and can not be exported to the first auxiliary bridge arm 41 in input AC electricity P, right second port 22 receives input
Corresponding single-phase alternating current is then exported to the second module 32 in alternating current P, so that the second module 32 conversion second port 22 is passed
Corresponding single-phase alternating current in the input AC electricity P come.In addition, since the second auxiliary bridge arm 42 does not work, therefore first port 21
It receives corresponding single-phase alternating current in input AC electricity P and can not export to the second auxiliary bridge arm 42, right third port 23 receives
Corresponding single-phase alternating current is then exported to third module 33 in input AC electricity P, so that third module 33 converts third port 23
Corresponding single-phase alternating current in the input AC electricity P transmitted.
It is received as the input AC electricity of single phase ac electric energy by first port 21 and middle line port 24 when input terminal 2 again
P, and when the output end of first module, second module and third module three is connected in parallel, if the electricity of input AC electricity P
Stream is less than or equal to the first electric current preset value, such as when 16A, and just control first assists respectively for the second module 32 and third module 33
Bridge arm 41 and the second auxiliary bridge arm 42 neither work, and only the first module 31 is the received electric energy of conversion and the second mould at this time
Block 32 and third module 33 neither convert received electric energy, therefore the first module 31 is by first port 21 and middle line end
Input AC electricity P received by mouth 24 is converted, and is charged with being supplied to battery.While in order to make charging unit 1
When receiving single-phase input power supply, output power can be promoted in response to actual demand, therefore when the first module 31, the second module 32
And third module 33 is respectively blow-up via first port 21, second port 22,23 confirmation input alternating current P of third port
When galvanic electricity energy, and the size of current of 5 confirmation input alternating current P of detection module and it will confirm that result sends the first module 31, to
When two modules 32 and third module 33, the first module 31, the second module 32 and third module 33 are to control the first service bridge respectively
Arm 41 and the second auxiliary bridge arm 42 selectively work or do not work, so that the second module 32 and third module 33 are selectively
The received electric energy of conversion, selectivity promotes the output power of charging unit 1 whereby.If the electric current of input AC electricity P is greater than
First electric current preset value, and it is less than or equal to the second electric current preset value, such as when 32A, the second module 32 control the first auxiliary bridge arm
41 work, third module 33 control second auxiliary bridge arm 42 do not work, the received input AC electricity P of first port 21 be export to
First auxiliary bridge arm 41 allows to convert input AC electricity P using the first auxiliary bridge arm 41 and the second module 32.Meanwhile
The received input AC electricity P of first port 21 just can not be exported to the second auxiliary bridge arm 42, so that the second service bridge can not be utilized
Arm 42 and third module 33 carry out electric energy conversion, therefore third module 33 does not convert received electric energy.Second mould at this time
The received electric energy of the conversion in parallel with the first module 31 of block 32 and third module 33 does not convert received electric energy, therefore charge
Output electric energy is provided by the first module 31 and the second module 32 caused by device 1.If the electric current of input AC electricity P is greater than
When the second electric current preset value, the second module 32 and third module 33 control the first auxiliary bridge arm 41 and the second auxiliary bridge arm 42 respectively
Work, the received input AC electricity P of first port 21 is output to the first auxiliary bridge arm 41 and the second auxiliary bridge arm 42, so that can
To convert input AC electricity P using the first auxiliary bridge arm 41, the second module 32, second auxiliary bridge arm 42 and third module 33,
The received electric energy of second module 32, third module 33 conversion in parallel with the first module 31 at this time, therefore produced by charging unit 1
Output electric energy be to be provided by the first module 31, the second module 32 and third module 33.
From the foregoing, it will be observed that due to the charging unit 1 of the disclosure be provided be connected to first port 21 and the second module 32 it
Between the first auxiliary bridge arm 41 and the second auxiliary bridge arm 42 for being connected between first port 21 and third module 33, therefore when defeated
Enter alternating current P be single phase ac electric energy when, charging unit 1 can at least be turned input AC electricity P using the first module 31
It changes, to charge to battery, conversely, when input AC electricity P is threephase AC electric energy, in addition to the first module 31 can will be defeated
Enter in alternating current P outside corresponding single-phase alternating current is converted, it is auxiliary that the second module 32 and third module 33 control first more respectively
Bridge arm 41 and the second auxiliary bridge arm 42 is helped not to work, so that also conversion input is handed over respectively for the second module 32 and third module 33
Corresponding single-phase alternating current in galvanic electricity P, therefore the charging unit 1 of the disclosure and be not required to be equipped with additional portable charger, i.e.,
It is compatible to be single phase ac electric energy or be the input AC electricity P of threephase AC electric energy and convert input AC electricity P, therefore the disclosure
Charging unit 1 can not only promote electrical safety when in use, while reducing the overall cost of electric vehicle.In addition, when input
Alternating current P is connected in parallel for the output end of single phase ac electric energy and 33 three of the first module 31, the second module 32 and third module
Constantly, other than the first module 31 can be converted input AC electricity P, since the detection module 5 of the disclosure is also according to input
The size of current of alternating current P and so that the second module 32 and third module 33 is controlled the first auxiliary bridge arm 41 and the second service bridge respectively
Arm 42 selectively works or does not work, so that the second module 32 and third module 33 selectively convert input AC electricity P,
Therefore charging unit 1 actually can according to input AC electricity P size of current and carried out using the module of at least more than one
The conversion of input AC electricity P, in this way, which charging unit 1 just reaches the advantage for optionally promoting output power.
Please continue to refer to Fig. 1, in this present embodiment, the first module 31 be with the first bridge arm 311 for being connected in parallel and
Second bridge arm 312, wherein the first bridge arm 311 includes two be made of the upper switch pipe M11 and lower switch pipe M12 concatenated
Switch block, the second bridge arm 312 include two switching groups being made of the upper switch pipe M13 and lower switch pipe M14 concatenated
Part.Second module 32 be with the first auxiliary bridge arm 41 the first bridge arm 321 and the second bridge arm 322 for being connected in parallel, wherein
First bridge arm 321 includes two switch blocks being made of the upper switch pipe M21 and lower switch pipe M22 concatenated, the second bridge
Arm 322 then includes two switch blocks being made of the upper switch pipe M23 and lower switch pipe M24 concatenated.Third module 33
It is with the first bridge arm 331 and the second bridge arm 332 being connected in parallel with the second auxiliary bridge arm 42, wherein the first bridge arm 331 wraps
Containing the upper switch pipe M31 and two switch blocks being constituted of lower switch pipe M32 by concatenating, the second bridge arm 332 includes by going here and there
Two switch blocks that the upper switch pipe M33 and lower switch pipe M34 connect is constituted.First auxiliary bridge arm 41 is comprising concatenation
Two controllable switch components (M25, M26), second auxiliary bridge arm 42 be comprising concatenation two controllable switch components (M35,
M36).In some embodiments, the second bridge arm of the upper switch pipe M11 of the first bridge arm 311 of the first module 31, the first module 31
312 upper switch pipe M13, the upper switch pipe M21 of the first bridge arm 321 of the second module 32, the second module 32 the second bridge arm 322
Upper switch pipe M23, third module 33 the first bridge arm 331 upper switch pipe M31 and third module 33 the second bridge arm 332
Upper switch pipe M33 be respectively controlled tr tube, and be preferably respectively thyristor, in addition, the first bridge of the first module 31
The lower switch pipe M12 of arm 311, the lower switch pipe M14 of the second bridge arm 312 of the first module 31, the second module 32 the first bridge arm
321 lower switch pipe M22, the lower switch pipe M24 of the second bridge arm 322 of the second module 32, third module 33 the first bridge arm 331
Lower switch pipe M32 and the lower switch pipe M34 of the second bridge arm 332 of third module 33 be respectively diode.In the implementation
It, can be by controlling the upper switch pipe M11 of the first bridge arm 311 of the first module 31, the second bridge arm 312 of the first module 31 in example
Upper switch pipe M13, the upper switch pipe M21 of the first bridge arm 321 of the second module 32, the second module 32 the second bridge arm 322 it is upper
Switching tube M23, third module 33 the first bridge arm 331 upper switch pipe M31 and third module 33 the second bridge arm 332 it is upper
The angle of flow of switching tube M33 respectively reduces the surge current of the first module 31, the second module 32 and third module 33.
In another embodiment, the lower switch pipe M12 of the first bridge arm 311 of the first module 31, the first module 31 second
The lower switch pipe M14 of bridge arm 312, the lower switch pipe M22 of the first bridge arm 321 of the second module 32, the second module 32 the second bridge
Lower switch pipe M24, the lower switch pipe M32 of the first bridge arm 331 of third module 33 and the second bridge of third module 33 of arm 322
The lower switch pipe M34 of arm 332 is respectively controlled tr tube, and is preferably respectively thyristor, and the first of the first module 31
The upper switch pipe M11 of bridge arm 311, the upper switch pipe M13 of the second bridge arm 312 of the first module 31, the second module 32 the first bridge
The upper switch pipe M21 of arm 321, the upper switch pipe M23 of the second bridge arm 322 of the second module 32, third module 33 the first bridge arm
The upper switch pipe M33 of 331 upper switch pipe M31 and the second bridge arm 332 of third module 33 is respectively diode.Another
In embodiment, the upper switch pipe M11 of the first bridge arm 311 of the first module 31 and the second bridge of lower switch pipe M12, the first module 31
The upper switch pipe M21 and lower switch of the upper switch pipe M13 and lower switch pipe M14 of arm 312, the first bridge arm 321 of the second module 32
Pipe M22, the second module 32 the second bridge arm 322 upper switch pipe M23 and lower switch pipe M24, third module 33 the first bridge arm
331 upper switch pipe M31 and lower switch pipe M32, third module 33 the second bridge arm 332 upper switch pipe M33 and lower switch pipe
M34 is respectively controlled tr tube or diode, wherein in a preferred embodiment, controlled tr tube is thyristor.This
Outside, two controllable switches of two controllable switch components (M25, M26) of the first auxiliary bridge arm 41 and the second auxiliary bridge arm 42
Component (M35, M36) be respectively be, for example, thyristor.
In addition, first port 21 is attached to the upper switch pipe M13 and lower switch of the second bridge arm 312 of the first module 31
The midpoint O5 and the second service bridge of two controllable switch components (M25, M26) of the midpoint O2 of pipe M14, the first auxiliary bridge arm 41
The midpoint O8 of two controllable switch components (M35, M36) of arm 42.Second port 22 is attached to the second bridge of the second module 32
The midpoint O4 of the upper switch pipe M23 and lower switch pipe M24 of arm 322.Third port 23 is attached to the second of third module 33
The midpoint O7 of the upper switch pipe M33 and lower switch pipe M34 of bridge arm 332.Middle line port 24 is attached to the of the first module 31
The upper switch of the midpoint O1 of the upper switch pipe M11 and lower switch pipe M12 of one bridge arm 311, the first bridge arm 321 of the second module 32
The upper switch pipe M31 of the first bridge arm 331 of the midpoint O3 and third module 33 of pipe M21 and lower switch pipe M22 and under open
Close the midpoint O6 of pipe M32.
In some embodiments, the first module 31, the second module 32 and third module 33 more separately include a conversion circuit
6, wherein the input terminal of the conversion circuit 6 of the first module 31 is the first bridge arm 311 and the first module 31 with the first module 31
The connection of the second bridge arm 312, the input terminal of the conversion circuit 6 of the second module 32 is and the first bridge arm 321 of the second module 32, the
Second bridge arm 322 of two modules 32 and the first auxiliary bridge arm 41 connect, the input terminal of the conversion circuit 6 of third module 33 be with
First bridge arm 331 of third module 33, the second bridge arm 332 of third module 33 and the second auxiliary bridge arm 42 connect, in addition, the
The output end of the conversion circuit 6 of one module 31, the second module 32 conversion circuit 6 output end and third module 33 conversion
The output end of circuit 6 is then connected with each other, such as the output end of charging unit 1 is connected to parallel way.In other embodiments,
The conversion circuit 6 of the conversion circuit 6 of first module 31, the conversion circuit 6 of the second module 32 and third module 33 can wrap respectively
Containing a circuit of power factor correction and one direct current/DC converting circuit, but not limited to this.In another embodiment, first
Module 31, the second module 32 and third module 33 more separately include a control unit 7, wherein the control unit 7 of the first module 31
Connect with first port 21 and neutral port 24, the control unit 7 of the second module 32 and first port 21, second port 22 and in
Property port 24 connect, the control unit 7 of third module 33 connect with first port 21, third port 23 and neutral port 24, the
It is single phase ac that the control unit 7 of one module 31, the second module 32 and third module 33, which is to confirmation input alternating current P respectively,
Electric energy or threephase AC electric energy.And first module 31 control unit 7, the control unit 7 and third module 33 of the second module 32
Control unit 7 connect more respectively with detection module 5, the electric current that can receive 5 confirmation input alternating current P of detection module respectively is big
Small confirmation is as a result, and the control unit 7 of the control unit 7 of the second module 32 and third module 33 then can be according to confirmation result point
Not Kong Zhi first auxiliary bridge arm 41 and second auxiliary bridge arm 42 selectively work or do not work.
In some embodiments, control port 25 also includes one first detection mouth 250 and one second detection mouth 251.The
One detection mouth 250 or the second detection mouth 251 are the size of current for detecting input AC electricity P, and the result benefit that will test
Detection module 5 is provided with communication mode.
It please refers to Fig. 2 and cooperates Fig. 1, wherein Fig. 2 is that the process of the control method applied to charging unit shown in FIG. 1 is shown
It is intended to.As shown in Figures 1 and 2, firstly, executing step S1, when receiving input AC electricity P, confirmation input alternating current P is single
Phase AC energy or threephase AC electric energy.When it is threephase AC electric energy that step S1 judging result, which is input AC electricity P, then execute
Step S2, i.e. the first module 31 convert input AC electricity P in corresponding single-phase alternating current, and control first auxiliary bridge arm 41 and
Second auxiliary bridge arm 42 does not work, and converts the second module 32 and third module 33 respectively corresponding single-phase in input AC electricity P
Alternating current.Conversely, thening follow the steps S3, i.e., first when step S1 judging result be input AC electricity P is single phase ac electric energy
Module 31 is run, and the first auxiliary bridge arm 41 of control and the second auxiliary bridge arm 42 selectively work or do not work respectively, make the
Two modules 32 and third module 33 are selectively run.Wherein, selectivity described in step S3 refers to the first auxiliary bridge arm 41
And second auxiliary bridge arm 42 can work according to actual demand and setting, do not work or be cut in work and in not working
It changes.
In this present embodiment, because the output end of 33 three of the first module 31, the second module 32 and third module is connected in parallel,
Therefore in step S3, the first auxiliary is actually controlled respectively also according to the size of current of the input AC electricity P of the confirmation of detection module 5
Bridge arm 41 and the second auxiliary bridge arm 42 selectively work or do not work, so that the second module 32 and third module 33 are selectively
Operation.
It please refers to Fig. 3 and cooperates Fig. 1 and Fig. 2, wherein Fig. 3 is the process signal of the sub-step of step shown in Fig. 2 (S3)
Figure.As shown in figure 3, being single phase ac electric energy in the received input AC electricity P of the institute of charging unit 1, and the first module 31, the second mould
It is to execute step S20 when the output end of 33 three of block 32 and third module is connected in parallel, control the first module 31 operation.Then,
Step S21 is executed, judges whether the electric current of input AC electricity P is less than or equal to the first electric current preset value.If step S21 is judged as
It is to execute step S22, that is, controls the first auxiliary bridge arm 41 and the second auxiliary bridge arm 42 does not work, make the second module 32 and the
Three modules 33 are not run.If step S21 is judged as NO, step S23 is executed, judges whether the electric current of input AC electricity P is greater than the
One electric current preset value and it is less than or equal to the second electric current preset value, if step S23 is judged as YES, executes step S24, control is first auxiliary
It helps bridge arm 41 to work and control the second auxiliary bridge arm 42 not work, makes the second module 32 and 31 parallel running of the first module and turn
Input AC electricity P is changed, and runs third module 33 not, if step S23 is judged as NO, executes step S25, the first auxiliary of control
Bridge arm 41 and the second auxiliary bridge arm 42 work, and make the second module 32, third module 33 and 31 parallel running of the first module and turn
Change input AC electricity P.
It please refers to Fig. 4 and cooperates Fig. 1, Fig. 4 is single phase ac by the received input AC electricity of charging unit shown in FIG. 1
When electric energy, the flow diagram of another control method applied to the charging unit.As shown in figure 4, being received in charging unit 1
Input AC electricity P be single phase ac electric energy, and the output end of 33 three of the first module 31, the second module 32 and third module is simultaneously
When connection connection, the control method of the present embodiment is to first carry out step M1, when input terminal 2 receives input AC electricity P, control first
Module 31 is run.It executes step M2 again after step M1 has been executed, that is, judges whether the electric current of input AC electricity P is less than or equal to
One electric current preset value.If step M2 is judged as YES, step M3 is executed, that is, controls the first auxiliary bridge arm 41 and the second auxiliary bridge arm
42 do not work, and run the second module 32 and third module 33 not.If step M2 is judged as NO, step M4 is executed, judges to input
Whether the electric current of alternating current P is greater than the first electric current preset value and is less than or equal to the second electric current preset value, if step M4 is judged as YES,
Execute step M5, control the first auxiliary bridge arm 41 work and control the second auxiliary bridge arm 42 do not work, make the second module 32 with
First module, 31 parallel running and conversion input AC electricity P, and run third module 33 not, if step M4 is judged as NO, hold
Row step M6, the first auxiliary bridge arm 41 of control and the second auxiliary bridge arm 42 work, and make the second module 32, third module 33 and the
One module, 31 parallel running and conversion input AC electricity P.
Certainly, the output end of 33 three of the first module 31, the second module 32 and third module is not limited merely to such as Fig. 1
It is shown, it is to be connected with each other with parallel way, it also can be as shown in figure 5, the first module 31, the second module 32 and third module 33 3
The output end of person changes to be connected in a series arrangement.And the output of corresponding first module 31,33 three of the second module 32 and third module
End is connected in series, if therefore input terminal 2 is received as the input friendship of single phase ac electric energy by first port 21 and middle line port 24
Galvanic electricity P, then the second module 32 and third module 33 control the first auxiliary bridge arm 41 respectively and the second auxiliary bridge arm 42 all works,
And first module 31, the second module 32 and third module 33 are to be operated together and convert input AC electricity P, therefore 1 institute of charging unit
The output electric energy of generation is provided by the first module 31, the second module 32 and third module 33.In addition, because of the first module 31,
The output end of 33 three of two modules 32 and third module changes to be connected in a series arrangement, therefore the conversion circuit 6 of the first module 31
Output end, the second module 32 conversion circuit 6 output end and third module 33 conversion circuit 6 output end be with connect
Mode is connected to the output end of charging unit 1.
In addition, the control method for being applied to charging unit shown in fig. 5 is actually to be similar to controlling party shown in Fig. 2
Method, so the output end in response to 33 three of the first module 31, the second module 32 and third module is to be connected with each other in a series arrangement,
Therefore under conditions of the step S2 of control method shown in Fig. 2, the step S2 of control method shown in Fig. 2 is actually then controlled respectively
The first auxiliary bridge arm 41 of system and the second auxiliary bridge arm 42 work, so that the first module 31, the second module 32 and third module 33 are
It is operated together.And since Fig. 1 is most of all similar to actuation to circuit framework shown in fig. 5, therefore only illustrate two in above content
The otherness of person is then repeated no more for identical content.
Referring to Fig. 6, the circuit structure diagram of the charging unit for disclosure third preferred embodiment.As shown, this reality
The charging unit 1 for applying example includes that input terminal 2, the first module 31, the second module 32, third module 33, first assist bridge arm 41, the
Two auxiliary bridge arms 42 and detection module 5, structure and actuation are all similar to input terminal 2 shown in FIG. 1, the first module respectively
31, the second module 32, third module 33, first assist bridge arm 41, second to assist bridge arm 42 and detection module 5, therefore only in this
It is similar with identical label representative structure and function and repeat no more.And in this present embodiment, the first bridge arm of the first module 31
311 two switch blocks can be transistor, and two switch blocks of the first bridge arm 321 of the second module 32 can be transistor,
Two switch blocks of the first bridge arm 331 of third module 33 can be transistor.
In addition, first module 31 of the present embodiment has more capacitor C1 and inductance L1, the of capacitor C1 and the first module 31
One bridge arm 311 is connected in parallel, and one end of inductance L1 is two switch blocks for being connected to the first bridge arm 311 of the first module 31
Midpoint O1, the other end of inductance L1 are to be connected to middle line port 24.Second module 32 of the present embodiment has more capacitor C2 and electricity
Feel L2, capacitor C2 and the first bridge arm 321 of the second module 32 are connected in parallel, and one end of inductance L2 is connected to the second module 32
The midpoint O2 of two switch blocks of the first bridge arm 321, the other end of inductance L2 are to be connected to middle line port 24.The present embodiment
Third module 33 has more capacitor C3 and inductance L3, and capacitor C3 and the first bridge arm 331 of third module 33 are connected in parallel, inductance L3
One end be the midpoint 3 for being connected to two switch blocks of the first bridge arm 331 of third module 33, the other end of inductance L3 is to connect
It is connected to middle line port 24.
In embodiment shown in fig. 6, two switch blocks of the first bridge arm 311 of the first module 31, the first module 31
Capacitor C1 and the first module 31 inductance L1 be constitute one first totem circuit of power factor correction.Second module 32
The inductance L2 of two switch blocks of the first bridge arm 321, the capacitor C2 of the second module 32 and the second module 32 is to constitute one the
Two totem circuit of power factor correction.The electricity of two switch blocks of the first bridge arm 331 of third module 33, third module 33
The inductance L3 for holding C3 and third module 33 is to constitute a third totem circuit of power factor correction.And due to the first module 31
The inductance L1 of two switch blocks of the first bridge arm 311, the capacitor C1 of the first module 31 and the first module 31 may make up totem
Column circuit of power factor correction.Two switch blocks of the first bridge arm 321 of the second module 32, the second module 32 capacitor C2 with
And second the inductance L2 of module 32 may make up totem circuit of power factor correction.The two of first bridge arm 331 of third module 33
The inductance L3 of a switch block, the capacitor C3 of third module 33 and third module 33 may make up totem PFC electricity
Road, therefore the conversion circuit 6 of the first module 31 shown in fig. 6, the second module 32, third module 33 can be respectively only comprising always
Stream/DC converting circuit (not shown), without being additionally arranged circuit of power factor correction, therefore charging unit shown in fig. 61
Lower-cost advantage can relatively be simplified and be reached to component, and because the first module 31 of the charging unit of embodiment shown in fig. 61,
Second module 32 and third module 33 are respectively using corresponding totem circuit of power factor correction to carry out PFC
Operation, therefore have the higher advantage of efficiency.
Certainly, the output end of 33 three of the first module 31, the second module 32 and third module is not limited to such as Fig. 6 institute
Show, the battery of electric vehicle can be connected in parallel to, it, can be as shown in fig. 7, the first module 31, the second module in some embodiments
32 and the output end of 33 three of third module can be serially connected and be connected to the battery of electric vehicle.Certainly, disclosure Fig. 2,
Fig. 3 and control method shown in Fig. 4 are equally applicable for charging unit shown in fig. 6, and disclosure control method shown in fig. 5 also may be used
Applied to charging unit shown in Fig. 7, therefore repeated no more in this.
In Fig. 6 and embodiment shown in Fig. 7, two switch blocks of the second bridge arm 312 of the first module 31 are controllable
Switching device, such as thyristor, two switch blocks of the second bridge arm 322 of the second module 32 are controllable switch device, such as
Thyristor, two switch blocks of the second bridge arm 332 of third module 33 are controllable switch device, such as thyristor.Another
In embodiment, two switch blocks of the second bridge arm 312 of the first module 31 can also be uncontrollable switching device, such as two poles
Pipe, two switch blocks of the second bridge arm 322 of the second module 32 can also be uncontrollable switching device, such as diode, third
Two switch blocks of the second bridge arm 332 of module 33 can also be uncontrollable switching device, such as diode.
In conclusion the application discloses a kind of charging unit, since the charging unit is to contain to be connected to first port
And second the first auxiliary bridge arm between module and the second auxiliary bridge arm for being connected between first port and third module, therefore
When input AC electricity is threephase AC electric energy, in addition to the first module can carry out corresponding single-phase alternating current in input AC electricity
Conversion is outer, and the second module and third module control first more respectively and bridge arm and the second auxiliary bridge arm assisted not to work, so that the
Two modules and third module also convert corresponding single-phase alternating current in input AC electricity respectively, conversely, when input AC electricity is
When single phase ac electric energy, charging unit can at least be converted input AC electricity using the first module, with to battery into
Row charging, therefore the charging unit of the disclosure and be not required to be equipped with additional portable charger, i.e., compatible is single-phase alternating current
Can or for threephase AC electric energy input AC electricity and convert input AC electricity, therefore the charging unit of the disclosure is not only when in use
Electrical safety can be promoted, while reducing the overall cost of electric vehicle.
In addition, when input AC electricity is the defeated of single phase ac electric energy and the first module, the second module and third module three
Outlet is connected in parallel constantly, other than the first module can be converted input AC electricity, since the detection module of the disclosure can
The second module and third module is set to control the first auxiliary bridge arm and the second auxiliary respectively according to the size of current of input AC electricity
Bridge arm selectively works or does not work so that the second module and third module selective convert input AC electricity, therefore
Charging unit actually can according to input AC electricity size of current and carry out input friendship using the module of at least more than one
The conversion of galvanic electricity, in this way, which the charging unit of the disclosure reaches the advantage for optionally promoting output power.
Claims (27)
1. a kind of charging unit receives an input AC electricity caused by a charging equipment and charges, which is characterized in that packet
Contain:
One input terminal, include a first port, a second port, a third port, a middle line port and a control port,
In when the input AC electricity is a single phase ac electric energy, it is defeated which by the first port and the middle line port receives this
Enter alternating current, in the input AC electricity be a threephase AC electric energy when, the input terminal by the first port, the second port and
The third port receives corresponding single-phase alternating current in input AC electricity respectively；
One first module is connect with the first port and the middle line port；
One second module is connect with the second port and the middle line port；
One third module is connect with the third port and the middle line port, wherein first module, second module and the third
The output end of module three is connected with each other, and first module, second module and the third module confirm that the input is handed over respectively
Galvanic electricity is the single phase ac electric energy or the threephase AC electric energy；
One first auxiliary bridge arm, is connected between the first port and second module；
One second auxiliary bridge arm, is connected between the first port and the third module；And
One detection module for confirming the size of current of input AC electricity, and will confirm that result sends first module to, is somebody's turn to do
Second module and the third module make first module, second module and the third module according to the corresponding control of confirmation result
The operation of the first auxiliary bridge arm and the second auxiliary bridge arm；
Wherein, when the input AC electricity is the threephase AC electric energy, which runs and converts in input AC electricity
Corresponding single-phase alternating current, and second module and the third module control the first auxiliary bridge arm and second auxiliary respectively
Bridge arm does not work, and second module and the third module is made to convert corresponding single-phase alternating current in input AC electricity respectively, when
The input AC electricity is the single phase ac electric energy, and the output end of first module, second module and third module three
When being connected in parallel, which runs and converts input AC electricity, and second module and the third module are according to the inspection
It surveys the size of current of the input AC electricity of module confirmation and controls the first auxiliary bridge arm and the second auxiliary bridge arm choosing respectively
It works to selecting property or does not work, run with making second module and the third module selective and convert input AC electricity, when
The input AC electricity is the single phase ac electric energy, and the output end of first module, second module and third module three
When series connection, second module and the third module control the first auxiliary bridge arm and the second auxiliary bridge arm work respectively
Make, and first module, second module and the third module are operated together and convert input AC electricity.
2. charging unit as described in claim 1, wherein being the single phase ac electric energy, first mould in the input AC electricity
The output end of block, second module and third module three is connected in parallel, and second module and the third module are via this
When detection module confirms that the electric current of input AC electricity is less than or equal to first electric current preset value, second module and the third mould
Block controls the first auxiliary bridge arm respectively and the second auxiliary bridge arm does not work, and first module is made to convert input AC electricity
And second module and the third module neither convert input AC electricity.
3. charging unit as described in claim 1, wherein being the single phase ac electric energy, first mould in the input AC electricity
The output end of block, second module and third module three is connected in parallel, and second module and the third module are via this
Detection module confirms that the electric current of input AC electricity is greater than one first electric current preset value and is less than or equal to one second electric current preset value
When, which controls the first auxiliary bridge arm work and the third module controls the second auxiliary bridge arm and do not work, and makes
Second module and first wired in parallel run and convert input AC electricity, and the third module is made not convert input friendship
Galvanic electricity.
4. the charging unit as described in any in Claims 2 or 3, which is 16A.
5. charging unit as described in claim 1, wherein being the single phase ac electric energy, first mould in the input AC electricity
The output end of block, second module and third module three is connected in parallel, and second module and the third module are via this
When detection module confirms that the electric current of input AC electricity is greater than second electric current preset value, second module and the third module point
The first auxiliary bridge arm and the second auxiliary bridge arm work are not controlled, make second module, the third module and first mould
Block parallel running simultaneously converts input AC electricity.
6. the charging unit as described in any in claim 3 or 5, which is 32A.
7. charging unit as described in claim 1, wherein first module, second module and the third module have respectively
There are one first bridge arm and one second bridge arm, each first bridge arm and each second bridge arm separately include on one by concatenating
Two switch blocks that switching tube and once switching tube are constituted, the first auxiliary bridge arm and the second auxiliary bridge arm wrap respectively
Two controllable switch components containing concatenation.
8. charging unit as claimed in claim 7, wherein each upper switch pipe is controllable switch components.
9. charging unit as claimed in claim 7, wherein each lower switch pipe is controllable switch components.
10. the charging unit as described in claim 7,8 or 9, wherein each controllable switch components are thyristor.
11. charging unit as claimed in claim 7, wherein the first port is connected to second bridge arm of first module
The midpoint of two switch blocks, this first auxiliary bridge arm two controllable switch components midpoint and second service bridge
The midpoint of two controllable switch components of arm, the second port be connected to two of second bridge arm of second module this open
The midpoint of component is closed, which is connected to the midpoint of two switch blocks of second bridge arm of the third module, should
Middle line port is connected to the midpoint of two switch blocks of first bridge arm of first module, second module this first
The midpoint of two switch blocks of first bridge arm of the switch block midpoint of two of bridge arm and the third module.
12. charging unit as claimed in claim 7, wherein two of first bridge arm of first module switch blocks,
Two of first bridge arm of second module switch blocks and two of first bridge arm of the third module switches
Component is respectively a transistor, and first module, second module and the third module are also respectively provided with a capacitor and one
Inductance, each capacitor are connected in parallel with corresponding first bridge arm respectively, and one end of each inductance is respectively connected to correspond to
First bridge arm two transistors midpoint, the other end of each inductance is respectively connected to the middle line port.
13. charging unit as claimed in claim 12, wherein two of second bridge arm of first module switch blocks,
Two of second bridge arm of second module switch blocks and two of second bridge arm of the third module switches
Component is respectively a controllable switch device.
14. charging unit as claimed in claim 12, charging unit as claimed in claim 12, wherein first module
Two of second bridge arm switch blocks, two of second bridge arm of second module switch blocks and the third mould
Two of second bridge arm of the block switch blocks are respectively a uncontrollable switching device.
15. charging unit as described in claim 1, wherein first module, second module and the third module are also distinguished
Comprising a conversion circuit, first bridge arm of the input terminal of the conversion circuit of first module and first module and this
Second bridge arm of one module connects, first bridge of the input terminal of the conversion circuit of second module and second module
Arm, second bridge arm of second module and the first auxiliary bridge arm connection, the input of the conversion circuit of the third module
It holds and is connect with first bridge arm of the third module, second bridge arm of the third module and the second auxiliary bridge arm, and should
The output end of the conversion circuit of the first module, the output end of the conversion circuit of second module and being somebody's turn to do for the third module
The output end of conversion circuit is connected with each other.
16. charging unit as described in claim 1, wherein first module, second module and the third module are distinguished
Comprising a control unit, the control unit of first module is connect with the detection module, the first port and the middle line port,
The control unit of second module is connect with the detection module, the first port, the second port and the middle line port, this
The control unit of three modules is connect with the detection module, the first port, the third port and the middle line port, first mould
The control unit of the control unit of block, the control unit of second module and the third module to confirm this respectively
Input AC electricity is the single phase ac electric energy or the threephase AC electric energy, and control unit and the third of second module
The control unit of module controls the first auxiliary bridge arm and second service bridge according to the confirmation result of the detection module respectively
Arm selectively works or does not work.
17. charging unit as described in claim 1, wherein the control port also includes one first detection mouth and one second inspection
Mouth is surveyed, first detection mouth or second detection mouth are the size of current for detecting input AC electricity, and will test
As a result the detection module is provided using communication mode.
18. charging unit as described in claim 1, the power that wherein first module is exported is 3.3kW, second module
The power exported is 3.3kW, and the power which is exported is 3.3kW.
19. a kind of control method, it is suitable for a charging unit, wherein it is defeated to receive caused by a charging equipment one for the charging unit
Enter alternating current to charge, the charging unit include an input terminal, the input terminal include a first port, a second port and
One third port, the charging unit also include one first module connecting with the first port, connect with the second port one
Second module, the third module being connect with the third port, be connected between the first port and second module one
One auxiliary bridge arm and be connected between the first port and the third module one second auxiliary bridge arm, wherein first module,
The output end of second module and third module three are connected with each other, and wherein the control method includes step:
(a) when receiving the input AC electricity, confirm the input AC electricity be a single phase ac electric energy or a threephase AC electric energy,
Step (b) is executed when confirming that the input AC electricity is the threephase AC electric energy, the input AC electricity is the blow-up when confirmation
When galvanic electricity energy, execute step (c)；
(b) first module convert the input AC electricity in corresponding single-phase alternating current, and control this first auxiliary bridge arm and
The second auxiliary bridge arm does not work, and converts second module and the third module respectively corresponding single-phase in input AC electricity
Alternating current；And
(c) first module run, and control respectively this first auxiliary bridge arm and this second auxiliary bridge arm selectively work or
It does not work, runs with making second module and the third module selective.
20. control method as claimed in claim 19, wherein first module, second module and third module three
Output end is connected in parallel, and in the step (c), is divided according to the size of current of the input AC electricity of detection module confirmation
The first auxiliary bridge arm is not controlled and the second auxiliary bridge arm selectively works or do not work, and makes second module and the third
Run to module selective.
21. control method as claimed in claim 19, wherein first module, second module and third module three
Output end is connected in series, and in the step (c), controls the first auxiliary bridge arm and the second auxiliary bridge arm work respectively,
It is operated together first module, second module and the third module.
22. control method as claimed in claim 19, wherein first module, second module and the third module are distinguished
With one first bridge arm and one second bridge arm, each first bridge arm and each second bridge arm separately include two switching groups
Part, the first auxiliary bridge arm and the second auxiliary bridge arm separately include two controllable switch components, and the first port connects
To two switch blocks of second bridge arm of first module midpoint, this first auxiliary bridge arm two controllable switches
The midpoint of two controllable switch components of the midpoint of component and the second auxiliary bridge arm, the second port be connected to this
The midpoint of two switch blocks of second bridge arm of two modules, the third port be connected to the third module this second
The midpoint of two switch blocks of bridge arm.
23. control method as claimed in claim 22, wherein two of first bridge arm of first module switch blocks,
Two of first bridge arm of second module switch blocks and two of first bridge arm of the third module switches
Component is respectively a transistor, and first module, second module and the third module are also respectively provided with a capacitor and one
Inductance, each capacitor are connected in parallel with corresponding first bridge arm respectively, and one end of each inductance is respectively connected to correspond to
First bridge arm two transistors midpoint, the other end of each inductance is respectively connected to the middle line port.
24. control method as claimed in claim 20, wherein the sub-step of the step (c) also includes:
(c1) first module operation is controlled；
(c2) judge whether the electric current of input AC electricity is less than or equal to one first electric current preset value, if the electricity of input AC electricity
Stream is less than or equal to first electric current preset value and thens follow the steps (c3), no to then follow the steps (c4)；
(c3) it controls the first auxiliary bridge arm and the second auxiliary bridge arm does not work, make second module and the third module not
Operation；
(c4) judge the electric current of input AC electricity whether be greater than first electric current preset value and be less than or equal to one second electric current it is pre-
If value, if the electric current of input AC electricity is greater than first electric current preset value and is less than or equal to second electric current preset value, hold
Row step (c5), it is no to then follow the steps (c6)；
(b5) control the first auxiliary bridge arm work and control the second auxiliary bridge arm and do not work, make second module and this
One wired in parallel runs and converts input AC electricity, and runs the third module not；And
(b6) the first auxiliary bridge arm and the second auxiliary bridge arm work are controlled, makes second module, the third module and is somebody's turn to do
First wired in parallel runs and converts input AC electricity.
25. a kind of control method, it is suitable for a charging unit, wherein it is defeated to receive caused by a charging equipment one for the charging unit
Enter alternating current to charge for a single phase ac electric energy, which includes an input terminal, which includes one first
Port and a middle line port, the charging unit also include one first module connecting with the first port and middle line port, one
Second module, a third module, one first auxiliary being connected between the input terminal and second module and are connected to bridge arm
One second between the input terminal and the third module assists bridge arm, wherein first module, second module and the third
The output end of module three is connected in parallel, and wherein the control method includes step:
(a) when the input terminal receives the input AC electricity, first module operation is controlled；
(b) judge whether the electric current of input AC electricity is less than or equal to one first electric current preset value, if the electricity of input AC electricity
Stream is less than or equal to first electric current preset value and thens follow the steps (c), no to then follow the steps (d)；
(c) it controls the first auxiliary bridge arm and the second auxiliary bridge arm does not work, make second module and the third module not
Operation；
(d) judge whether the electric current of input AC electricity is greater than first electric current preset value and is less than or equal to one second electric current to preset
Value executes if the electric current of input AC electricity is greater than first electric current preset value and is less than or equal to second electric current preset value
Step (e), it is no to then follow the steps (f)；
(e) control the first auxiliary bridge arm work and control the second auxiliary bridge arm and do not work, make second module and this
One wired in parallel runs and converts input AC electricity, and runs the third module not；And
(f) the first auxiliary bridge arm and the second auxiliary bridge arm work are controlled, make second module, the third module and this
One wired in parallel runs and converts input AC electricity.
26. control method as claimed in claim 25, wherein first module, second module and the third module are distinguished
With one first bridge arm and one second bridge arm, each first bridge arm and each second bridge arm separately include two switching groups
Part, the first auxiliary bridge arm and the second auxiliary bridge arm separately include two controllable switch components, and the first port connects
To two switch blocks of second bridge arm of first module midpoint, this first auxiliary bridge arm two controllable switches
The midpoint of component and this second auxiliary bridge arm two controllable switch components midpoint, the middle line port be connected to this first
The midpoint of two switch blocks of first bridge arm of module, two of first bridge arm of second module switch blocks
The midpoint of two switch blocks of first bridge arm of midpoint and the third module.
27. control method as claimed in claim 26, wherein two of first bridge arm of first module switch blocks,
Two of first bridge arm of second module switch blocks and two of first bridge arm of the third module switches
Component is respectively a transistor, and first module, second module and the third module are also respectively provided with a capacitor and one
Inductance, each capacitor are connected in parallel with corresponding first bridge arm respectively, and one end of each inductance is respectively connected to correspond to
First bridge arm two transistors midpoint, the other end of each inductance is respectively connected to the middle line port.
Priority Applications (2)
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| US16/122,395 US10530173B2 (en) | 2017-09-21 | 2018-09-05 | Charging device and control method therefor |
| EP18193029.8A EP3460969B1 (en) | 2017-09-21 | 2018-09-06 | Charging device and control method therefor |
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| CN2017108596435 | 2017-09-21 | ||
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010154613A (en) * | 2008-12-24 | 2010-07-08 | Ntt Facilities Inc | Dc power supply device |
| CN103427463A (en) * | 2012-05-17 | 2013-12-04 | 台达电子工业股份有限公司 | Charging system |
| CN104471824A (en) * | 2012-06-07 | 2015-03-25 | 智能电子系统公司 | Charging device having adaptive input |
| EP2869445A1 (en) * | 2013-11-01 | 2015-05-06 | DET International Holding Limited | Adaptable rectifier arrangement for operation with different AC grids |
| US20150155772A1 (en) * | 2012-06-06 | 2015-06-04 | Valeo Systemes De Controle Moteur | Absorption circuit for absorbing a power ripple and associated method |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010154613A (en) * | 2008-12-24 | 2010-07-08 | Ntt Facilities Inc | Dc power supply device |
| CN103427463A (en) * | 2012-05-17 | 2013-12-04 | 台达电子工业股份有限公司 | Charging system |
| US20150155772A1 (en) * | 2012-06-06 | 2015-06-04 | Valeo Systemes De Controle Moteur | Absorption circuit for absorbing a power ripple and associated method |
| CN104471824A (en) * | 2012-06-07 | 2015-03-25 | 智能电子系统公司 | Charging device having adaptive input |
| EP2869445A1 (en) * | 2013-11-01 | 2015-05-06 | DET International Holding Limited | Adaptable rectifier arrangement for operation with different AC grids |
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