CN110311563A - DCDC circulation control device, control method, electronic equipment, medium - Google Patents
DCDC circulation control device, control method, electronic equipment, medium Download PDFInfo
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- CN110311563A CN110311563A CN201910692176.0A CN201910692176A CN110311563A CN 110311563 A CN110311563 A CN 110311563A CN 201910692176 A CN201910692176 A CN 201910692176A CN 110311563 A CN110311563 A CN 110311563A
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Classifications
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- 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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
Abstract
The present invention relates to converter technical fields, disclose a kind of DCDC circulation control device comprising load R, at least two converter, converter includes: power input；Voltage output end, voltage output end include anode interface and cathode interface, and the electric current that anode interface flows through is set as i1, and the electric current that cathode interface flows through is set as i2；First module is connected between power input and the second module, adjusts the current value of i1；Second module, for constituting second level DC-DC transformation, and adjust the current value of i2, the power input of converter is coupled to DC source, the anode interface of converter is both coupled to wherein one end of load R, the cathode interface of converter is both coupled to the other end of load R, makes the i1 of different converters equal by the first module and the second module, the i2 of different converters is equal.The present invention also provides a kind of DCDC circular current control method, electronic equipment and computer readable storage mediums.
Description
Technical field
The present invention relates to converter technical fields more particularly to a kind of DCDC circulation control device, control method, electronics to set
Standby, medium.
Background technique
If a DC voltage can be converted into other DC voltages by a converter (to be such as converted to 3.0V
1.5V or 5.0V), our this converter is referred to as dcdc converter, or referred to as Switching Power Supply or switch adjuster.Due to big
Type equipment generally requires high-capacity direct current power supply power supply.But the power capacity of single power supply module is limited, and is being needed greatly
In the case that capacity is powered, distributed power supply system is generallyd use.Distributed power supply system is the power supply mould by several low capacities
The power-supply system for the large capacity that block is combined into.
In theory, the composition of distributed power supply system can have series, parallel and series connection to mix etc. just in parallel
Formula, but it is usually very high to the output current requirements of power supply in practical application, and the requirement to output voltage is not high, therefore phase
Comparatively, parallel power supply system has obtained wider application.
Power module in the prior art forms power supply after non-isolation DC/DC converter, this quasi-converter can be used in parallel
System, but when this quasi-converter is in parallel connection, can have circulation between converter, so as to cause the positive negative electricity of same converter
It flows unequal, and then makes each converter uneven heating, converter is easy to cause to damage.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of DCDC circulation control device,
Keep the i1 of different converters equal by the first module and the second module, the i2 of different converters is equal, i.e., same converter
The sum of i1 and i2 are zero, so as to reduce the circulation between converter, to reduce the probability of device failure in converter.
An object of the present invention adopts the following technical scheme that realization: a kind of DCDC circulation control device, including load R,
At least two converter, the converter include:
Power input connect with DC source and receives the voltage that the needs that the DC source is formed convert；
Voltage output end, the voltage after output transform, voltage output end includes anode interface and cathode interface, anode interface
The electric current flowed through is set as i1, and the electric current that cathode interface flows through is set as i2；
First module is connected between power input and the second module, for constituting first order DC-DC transformation, and is adjusted
Save the current value of the i1；
Second module is connected between the first module and voltage output end, for constituting second level DC-DC transformation, and is adjusted
The current value of the i2 is saved,
The power input of the converter is coupled to DC source, and the anode interface of the converter is both coupled to load
Wherein one end of R, the cathode interface of the converter are both coupled to the other end of load R, pass through the first module and the second mould
Block makes the sum of i1 and i2 of same converter be zero.
Further, first module includes inductance L1, switching tube S1, diode D7, capacitor C1, the switching tube S1
With control terminal, forward end, backward end, control terminal is connected to PWM Width adjusting device, and the voltage of forward end is higher than the electricity of backward end
Pressure,
One end of the inductance L1 is coupled to the anode of power input, and the other end is coupled to the anode of diode D7；Institute
The forward end for stating switching tube S1 is coupled to the anode of diode D7, and backward end is coupled to the cathode of power input；The capacitor
The both ends of C1 are respectively coupled to the backward end of the cathode of diode D7, switching tube S1；Cathode, the switching tube S1 of the diode D7
Backward end respectively with the positive input terminal of the second module, negative input end couple.
Further, first module includes inductance L3, switching tube S3, diode D9, capacitor C3, the switching tube S3
With control terminal, forward end, backward end, control terminal is connected to PWM Width adjusting device, and the voltage of forward end is higher than the electricity of backward end
Pressure,
The forward end of the switching tube S3 is coupled to the anode of power input, and backward end is coupled to one end of inductance L3,
The other end of inductance L3 is coupled to the positive input terminal of the second module；The cathode of the diode D9 is coupled to the reversed of switching tube S3
End, anode are coupled to the negative output terminal of the cathode of power input, the second module, and the both ends of the capacitor C3 are respectively coupled to two
The positive input terminal of the anode of pole pipe D9, the second module.
Further, second module includes inductance L2, diode D8, switching tube S2, capacitor C2, the switching tube S2
With control terminal, forward end, backward end, control terminal is connected to PWM Width adjusting device, and the voltage of forward end is higher than the electricity of backward end
Pressure,
The forward end of the switching tube S2 is coupled to the anode of diode D8, and switching tube S2 backward end is coupled to the first module
Negative output terminal；The cathode of diode D8 is coupled to the positive output end of the first module, anode interface；One end coupling of the inductance L2
It is connected to the anode of diode D8, the other end is coupled to cathode interface；The both ends of the capacitor C2 are respectively coupled to anode interface and bear
Pole interface.
Further, second module includes inductance L4, diode D10, switching tube S4, capacitor C4, the switching tube
S4 has control terminal, forward end, backward end, and control terminal is connected to PWM Width adjusting device, and the voltage of forward end is higher than the electricity of backward end
Pressure,
One end of the inductance L4 is coupled to the negative output terminal of the first module, and the other end is coupled to the reversed of switching tube S4
End；The forward end of the switching tube S4 is coupled to the positive output end of the first module, anode interface；The cathode of diode D10 couples
In the backward end of switching tube S4, anode is coupled to cathode interface, and the both ends of capacitor 4 are respectively coupled to anode interface and cathode connects
Mouthful.
Further, the DC source includes AC power source and rectification module, and the AC power source is via the rectification
Module forms the power input.
The second object of the present invention is to provide a kind of DCDC circular current control method, quickly to control the i1 of each converter
It is equal with the numerical value of i2, so that the circulation between converter is reduced, to reduce the probability of device failure in converter.
The third object of the present invention adopts the following technical scheme that realization: a kind of DCDC circular current control method, using above-mentioned
DCDC circulation control device comprising:
It obtains the total quantity of converter and is set as N；
It obtains the electric current through overload R and is set as iout；
Obtain the electric current i1 and electric current i2 of each converter；
Judge the numerical value of electric current i1 in each converter, whether the numerical value of electric current i2 is equal to the iout divided by the number of N
Value, if it is not, then corresponding first module of synchronously control, the second module make the numerical value of i1 and i2 in each converter be equal to iout
Divided by the numerical value of N.
The third object of the present invention is to provide three electronic equipment for executing goal of the invention comprising processor, storage
Medium and computer program, the computer program are stored in storage medium, and the computer program is executed by processor
Shi Shixian above-mentioned DCDC circular current control method.
The fourth object of the present invention is to provide three computer readable storage medium of storage goal of the invention, store thereon
There is computer program, the computer program realizes above-mentioned DCDC circular current control method when being executed by processor.
Compared with prior art, the beneficial effects of the present invention are: in DCDC circulation control device, by the first module and
Second module makes the i1 of different converters equal, and the i2 of different converters is equal, i.e., the sum of the i1 and i2 of same converter are
Zero, so as to reduce the circulation between converter, to reduce the probability of device failure in converter.
Detailed description of the invention
Fig. 1 is one DCDC circulation control device system block diagram of the embodiment of the present invention；
Fig. 2 is the circuit diagram of the first module of two DCDC circulation control device of the embodiment of the present invention；
Fig. 3 is the circuit diagram of the first module of three DCDC circulation control device of the embodiment of the present invention；
Fig. 4 is the circuit diagram of the second module of four DCDC circulation control device of the embodiment of the present invention；
Fig. 5 is the circuit diagram of the second module of five DCDC circulation control device of the embodiment of the present invention；
Fig. 6 is the circuit diagram of the DC source of six DCDC circulation control device of the embodiment of the present invention；
Fig. 7 is the flow diagram of DCDC circular current control method in the embodiment of the present invention seven；
Fig. 8 is the structural block diagram of electronic equipment in the embodiment of the present invention eight.
In figure: 1, converter；2, the first module；3, the second module；4, DC source；41, AC power source；42, rectification module；
5, electronic equipment；51, processor；52, memory；53, input unit；54, output device.
Specific embodiment
Below with reference to attached drawing, the present invention is described in more detail, it should be noted that right referring to the drawings
The description that the present invention carries out is only illustrative, and not restrictive.It can be combined with each other between each difference embodiment,
To constitute the other embodiments not shown in the following description.
Embodiment one
Embodiment one is to provide a kind of DCDC circulation control device, after 1 parallel connection of converter, passes through 2 He of the first module
Second module 3 keeps the i1 of different converters 1 equal, and the i2 of different converters 1 is equal, i.e., the sum of the i1 and i2 of same converter 1
It is zero, so as to reduce the circulation between converter 1, to reduce the probability of device failure in converter 1, improves converter 1
Service life.
Specifically, with reference to Fig. 1, above-mentioned DCDC circulation control device includes converter 1 and load R, wherein converter 1 to
It is set as 2 less.Converter 1 has power input, voltage output end, the first module 2, the second module 3, voltage output end tool
There are anode interface and cathode interface.Wherein power input is connect with DC source 4, and receive DC source 4 formation need to convert
Voltage, the voltage be DC voltage.
Wherein voltage output end can connect external equipment, be powered with realizing to external equipment.Wherein voltage output end packet
Anode interface and cathode interface are included, sets i1 for the electric current for flowing to external equipment from anode interface, will be flowed to from external equipment
The electric current of cathode interface is set as i2.
First module 2 is connected between power input and the second module 3 and for constituting first order DC-DC transformation, the
One module 2 is also used to adjust the current value of i1；Second module 3 is connected between the first module 2 and voltage output end and for structure
It is converted at second level DC-DC, the second module 3 is also used to adjust the current value of i2.
The power input of each converter 1 is coupled to DC source 4, and the anode interface of converter 1 is both coupled to load R
Wherein one end, the cathode interface of converter 1 be both coupled to load R other end, to realize the parallel connection of converter 1.
Make the i1 of different converters 1 equal by the first module 2 and the second module 3, the i2 of different converters 1 is equal, i.e., same change
The sum of i1 and i2 of parallel operation 1 are zero.So as to reduce the circulation between converter 1, to reduce device failure in converter 1
Probability.
Embodiment two
Embodiment with reference to Fig. 1 and Fig. 2, provides a kind of DCDC circulation control second is that carry out on the basis of example 1
Device processed realizes first order DC-DC transformation to the voltage that needs convert, is also realized respectively by the first module 2 to i1 tune
Section.
First module 2 may include inductance L1, switching tube S1, diode D7, capacitor C1.One end of inductance L1 is coupled to electricity
The anode of source output terminal, the other end are coupled to the anode of diode D7.
Switching tube S1 can be any one in MOSFET, IGBT, GaN, triode, preferably depletion type N-
MOSFET.Switching tube S1 has control terminal, forward end, backward end, and control terminal is connected to PWM Width adjusting device, the voltage of forward end
Higher than the voltage of backward end, i.e., the control terminal of switching tube S1, forward end, backward end can with the grid of depletion type N-MOSFET,
Drain electrode, source electrode are corresponding.
One end of inductance L1 is coupled to the anode of power input, and the other end is coupled to the anode of diode D7；Switching tube
The forward end of S1 is coupled to the anode of diode D7, and backward end is coupled to the cathode of power input；Distinguish at the both ends of capacitor C1
It is coupled to the cathode of diode D7, the backward end of switching tube S1；The cathode of diode D7, switching tube S1 backward end respectively with
The positive input terminal of two modules 3, negative input end coupling.
Wherein, capacitor C1 is preferably electrolytic capacitor, has the advantages that capacitance is big, at low cost, during installation, the electrolysis
The positive plate of capacitor and the cathode of diode D7 couple, and the backward end of negative plate and switching tube S1 couple.
By the PWM Width adjusting device of regulating switch pipe S1 connection, thus the duty ratio of regulating switch pipe S1, to adjust capacitor
The voltage at the both ends C1, thus realize the adjusting to i1, so that the i1 of each converter 1 is equal, i.e., the number of i1 in each converter 1
Value and direction are equal.
Embodiment three
Embodiment with reference to Fig. 1 and Fig. 3, provides a kind of DCDC circulation control third is that carry out on the basis of example 1
Device processed realizes first order DC-DC transformation to the voltage that needs convert, is also realized respectively by the first module 2 to i1's
It adjusts.
First module 2 includes inductance L3, switching tube S3, diode D9, capacitor C3.
Switching tube S3 can be any one in MOSFET, IGBT, GaN, triode, preferably depletion type N-
MOSFET.Switching tube S3 has control terminal, forward end, backward end, and control terminal is connected to PWM Width adjusting device, the voltage of forward end
Higher than the voltage of backward end, i.e., the control terminal of switching tube S3, forward end, backward end can with the grid of depletion type N-MOSFET,
Drain electrode, source electrode are corresponding.
The forward end of switching tube S3 is coupled to the anode of power input, and backward end is coupled to one end of inductance L3, inductance
The other end of L3 is coupled to the positive input terminal of the second module 3；The cathode of diode D9 is coupled to the backward end of switching tube S3, anode
It is coupled to the cathode of power input, the negative output terminal of the second module 3.
Capacitor C3 is preferably electrolytic capacitor, has the advantages that capacitance is big, at low cost, during installation, the electrolytic capacitor
Positive plate and inductance L3 coupled far from one end of switching tube S3, the anode of negative plate and diode D9 couple
By the PWM Width adjusting device of regulating switch pipe S3 connection, thus the duty ratio of regulating switch pipe S3, to adjust capacitor
The voltage at the both ends C3, thus realize the adjusting to i1, so that the i1 of each converter 1 is equal, i.e., the number of i1 in each converter 1
Value and direction are equal.
Example IV
Example IV is carried out on the basis of embodiment one or embodiment two or embodiment three, with reference to Fig. 1 and Fig. 4,
A kind of DCDC circulation control device is provided, DC-DC transformation in the second level is realized to the voltage of the first module 2 output, it is also logical
It crosses the second module 3 and realizes adjusting to i2 respectively.
Second module 3 may include inductance L2, switching tube S2, diode D8, capacitor C2.
Switching tube S2 can be any one in MOSFET, IGBT, GaN, triode, preferably depletion type N-
MOSFET.Switching tube S2 has control terminal, forward end, backward end, and the voltage of forward end is higher than the voltage of backward end, i.e. switching tube
The control terminal of S2, forward end, backward end are corresponding with the grid of depletion type N-MOSFET, drain electrode, source electrode.
The forward end of switching tube S2 is coupled to the anode of diode D8, and the negative output terminal of the first module of backward end 2 couples,
The cathode of middle diode D8 is coupled to the positive output end of the first module 2, and one end of inductance L2 is coupled to the forward end of switching tube S2.
One end of capacitor C2 is coupled to the cathode of diode D8, and the other end is coupled to one of inductance L2 far from switching tube S2
End, i.e., capacitor C2 is parallel between anode interface and cathode interface.Capacitor C2 is preferably electrolytic capacitor, big with capacitance,
At low cost a little during installation, the positive plate and anode interface of the electrolytic capacitor couple, negative plate and the coupling of cathode interface.
By the PWM Width adjusting device of regulating switch pipe S2 connection, thus the duty ratio of regulating switch pipe S2, to adjust capacitor
The voltage at the both ends C2, thus realize the adjusting to i2, so that the i2 of each converter 1 is equal, i.e., the number of i2 in each converter 1
Value and direction are equal.
Embodiment five
Embodiment is fifth is that carry out on the basis of embodiment one or embodiment two or embodiment three, with reference to Fig. 1 and Fig. 5,
A kind of DCDC circulation control device is provided, DC-DC transformation in the second level is realized to the voltage of the first module 2 output, it is also logical
It crosses the second module 3 and realizes adjusting to i2 respectively.
Second module 3 includes inductance L4, diode D10, switching tube S4, capacitor C4.Switching tube S4 can for MOSFET,
Any one in IGBT, GaN, triode, preferably depletion type N-MOSFET.Switching tube S4 has control terminal, forward end, anti-
Xiang Duan, the voltage of forward end are higher than the voltage of backward end.
One end of inductance L4 is coupled to the negative output terminal of the first module 2, and the other end is coupled to the backward end of switching tube S4；It opens
The forward end for closing pipe S4 is coupled to the positive output end of the first module 2, anode interface；The cathode of diode D10 is coupled to switching tube
The backward end of S4, anode are coupled to cathode interface.
Capacitor C4 is parallel between anode interface and cathode interface.Capacitor C4 is preferably electrolytic capacitor, with capacitance
Greatly, it is at low cost a little, during installation, the positive plate of the electrolytic capacitor and anode interface couple, negative plate and cathode interface coupling
It connects.
By the PWM Width adjusting device of regulating switch pipe S4 connection, thus the duty ratio of regulating switch pipe S4, to adjust capacitor
The voltage at the both ends C4, thus realize the adjusting to i2, so that the i2 of each converter 1 is equal, i.e., the number of i2 in each converter 1
Value and direction are equal.
Embodiment six
Embodiment provides one kind sixth is that can carry out on the basis of embodiment one to five any one of embodiment
DCDC circulation control device may be set to be friendship specifically, DC source 4 can be set to DC power supply with reference to Fig. 1 and Fig. 6
The combination in galvanic electricity source 41 and rectification module 42, wherein AC power source 41 forms power input via rectification module 42.
With reference to Fig. 6, AC power source 41 can be set to multiphase AC electricity or individual event AC electricity, and the AC power source 41 in Fig. 6 is set as
For three-phase AC electricity, rectification module 42 may include several diode D1 and diode D2, and wherein diode D1 and diode D2 are equal
There are three can be set, realize corresponding with three-phase AC electricity.The anode of diode D1 corresponds pair for being coupled to AC power source 41
Answer interface, the corresponding coupling of cathode；The cathode of diode D2 is coupled to the anode of corresponding diode D1 one by one respectively, and anode is right
It should couple.
Wherein the quantity of rectification module 42 is identical as the quantity of converter 1 and is arranged in a one-to-one correspondence, two in rectification module 42
The cathode of pole pipe D1 is coupled to the positive input terminal of the first module 2 in converter 1, and the anode of diode D2 is equal in rectification module 42
It is coupled to the negative input end of the first module 2, to realize that the output of self-rectifying module 42 is direct current.
Embodiment seven
Embodiment seven is to provide a kind of circular current control method, with reference to Fig. 1 and Fig. 7, can use above-mentioned circulation control
Device processed, quickly to adjust the current value of each i1, i2.
The circular current control method the following steps are included:
Step S1, it obtains the total quantity of converter 1 and is set as N, wherein N is more than or equal to 2.
Step S2, the electric current through overload R is obtained, sets iout for the electric current, and after each 1 parallel connection of converter, N
The i1 of a converter 1 is equal to the numerical value of iout in numerical value summation after being added, and the i2 of N number of converter 1 is total in numerical value after being added
With the numerical value for being also equal to iout.
Step S3, electric current i2, i1 and the i2 of the electric current i1, cathode interface of anode interface in each converter 1 are obtained
To be obtained by detection devices such as mutual inductor, ammeter, oscillograph, the various sample circuits built.
Step S4, whether the numerical value of the numerical value, electric current i2 that judge each 1 electric current i1 of converter is equal to iout divided by N's
Numerical value (| iout/N |).
If it is not, then corresponding first module 2 of synchronously control, the second module 3 keep the numerical value of the i1 and i2 of each converter 1 equal
Equal to iout divided by the numerical value (| iout/N |) of N.
Work as | i2 | > | iout/N | when, it can control the voltage that corresponding equipment changes capacitor C2 or C4, make capacitor C2
Or the corresponding voltage at the both ends C4 reduces, and to make | i2 | be decreased to be equal to | iout/N |；When | i2 | < | iout/N | when, it can control
The voltage that corresponding equipment changes capacitor C2 or C4 is made, makes the voltage at the both ends capacitor C2 or C4 is corresponding to increase, to make | i2 | increase
It is big to equal than | iout/N |；When | i1 | > | iout/N | when, it can control the voltage that corresponding equipment changes capacitor C1 or C3, make
The voltage at the both ends capacitor C1 or C3 is corresponding to be reduced, to make | i1 | be decreased to be equal to | iout/N |；When | i1 | < | iout/N | when,
It can control the voltage that corresponding equipment changes capacitor C1 or C3, make the voltage at the both ends capacitor C1 or C3 is corresponding to increase, to make |
I1 | increase to and be equal to | iout/N |.
Step S5, terminate operation.
By the circular current control method, last available same converter 1 | i1 |=| i2 |=| iout/N |, and it is each
The numerical value of i1, i2 between a converter 1 are equal, thus after 1 parallel connection of converter, the reversal phase of same converter 1
Deng, and aspergillus ficuum between each converter 1, generated heat uneven probability with reducing converter 1, to improve the use of converter 1
Service life.
Embodiment eight
Fig. 8 is the structural schematic diagram for a kind of electronic equipment that the embodiment of the present invention eight provides, as shown in figure 8, the electronics is set
Standby 5 include processor 51, memory 52, input unit 53 and output device 54；The quantity of processor 51 can in computer equipment
Be it is one or more, in Fig. 4 by taking a processor 51 as an example；Processor 51, memory 52, input dress in electronic equipment 5
Setting 53 can be connected with output device 54 by bus or other modes, in Fig. 8 for being connected by bus.
Memory 52 is used as a kind of computer readable storage medium, can be used for storing software program, journey can be performed in computer
Sequence and module, such as the circulation control device in the embodiment of the present invention.Processor 51 is stored in memory 52 by operation
Software program, instruction and module are realized above-mentioned thereby executing the various function application and data processing of electronic equipment 5
The DCDC circular current control method of embodiment seven.
Memory 52 can mainly include storing program area and storage data area, wherein storing program area can store operation system
Application program needed for system, at least one function；Storage data area, which can be stored, uses created data etc. according to terminal.This
Outside, memory 52 may include high-speed random access memory, can also include nonvolatile memory, for example, at least a magnetic
Disk storage device, flush memory device or other non-volatile solid state memory parts.In some instances, memory 52 can be further
Including the memory remotely located relative to processor 51, these remote memories can pass through network connection to electronic equipment 5.
The example of above-mentioned network includes but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
Input unit 53 is connected with corresponding detection device, and for receiving corresponding data；54 output phase of output device
The corresponding control equipment of the instruction answered, capacitor C1 and capacitor C2 executes corresponding instruction.
Embodiment nine
The embodiment of the present invention nine also provides a kind of computer readable storage medium, and it includes computer executable instructions, meters
Calculation machine executable instruction by computer processor when being executed for executing above-mentioned DCDC circular current control method, this method packet
It includes:
It obtains the total quantity of converter 1 and is set as N；
It obtains the electric current through overload R and is set as iout；
Obtain the electric current i1 and electric current i2 of each converter 1；
Judge whether the numerical value of electric current i1 in each converter 1, the numerical value of electric current i2 are equal to iout divided by the numerical value of N,
If it is not, then corresponding first module 2 of synchronously control, the second module 3 make the numerical value of i1 and i2 in each converter 1 be equal to iout
Divided by the numerical value of N.
Certainly, a kind of computer readable storage medium provided by the embodiment of the present invention, computer executable instructions are not
It is limited to method operation as above.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but in many cases, the former is more
Good embodiment.Based on this understanding, technical solution of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which can store in computer readable storage medium
In, floppy disk, read-only memory (Read-OnlyMemory, ROM), random access memory such as computer
(RandomAccessMemory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are used so that an electricity
Sub- equipment (can be mobile phone, personal computer, server or the network equipment etc.) executes the side of each embodiment of the present invention
Method.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (9)
1. a kind of DCDC circulation control device, which is characterized in that including loading R, at least two converter, the converter is wrapped
It includes:
Power input connect with DC source and receives the voltage that the needs that the DC source is formed convert；
Voltage output end, the voltage after output transform, voltage output end includes anode interface and cathode interface, and anode interface flows through
Electric current be set as i1, the electric current that cathode interface flows through is set as i2；
First module is connected between power input and the second module, for constituting first order DC-DC transformation, and adjusts institute
State the current value of i1；
Second module is connected between the first module and voltage output end, for constituting second level DC-DC transformation, and adjusts institute
The current value of i2 is stated,
The power input of the converter is coupled to DC source, and the anode interface of the converter is both coupled to load R's
Wherein one end, the cathode interface of the converter are both coupled to the other end of load R, are made by the first module and the second module
The i1 for obtaining different converters is equal, and the i2 of different converters is equal.
2. a kind of DCDC circulation control device according to claim 1, which is characterized in that first module includes inductance
L1, switching tube S1, diode D7, capacitor C1, the switching tube S1 have control terminal, forward end, backward end, and control terminal is connected to
PWM Width adjusting device, the voltage of forward end are higher than the voltage of backward end,
One end of the inductance L1 is coupled to the anode of power input, and the other end is coupled to the anode of diode D7；It is described to open
The forward end for closing pipe S1 is coupled to the anode of diode D7, and backward end is coupled to the cathode of power input；The capacitor C1's
Both ends are respectively coupled to the backward end of the cathode of diode D7, switching tube S1；The cathode of the diode D7, switching tube S1 it is anti-
It is coupled respectively with the positive input terminal of the second module, negative input end to end.
3. a kind of DCDC circulation control device according to claim 1, which is characterized in that first module includes inductance
L3, switching tube S3, diode D9, capacitor C3, the switching tube S3 have control terminal, forward end, backward end, and control terminal is connected to
PWM Width adjusting device, the voltage of forward end are higher than the voltage of backward end,
The forward end of the switching tube S3 is coupled to the anode of power input, and backward end is coupled to one end of inductance L3, inductance
The other end of L3 is coupled to the positive input terminal of the second module；The cathode of the diode D9 is coupled to the backward end of switching tube S3,
Anode is coupled to the negative output terminal of the cathode of power input, the second module, and the both ends of the capacitor C3 are respectively coupled to two poles
The positive input terminal of the anode of pipe D9, the second module.
4. a kind of DCDC circulation control device according to claim 1, which is characterized in that second module includes inductance
L2, diode D8, switching tube S2, capacitor C2, the switching tube S2 have control terminal, forward end, backward end, and control terminal is connected to
PWM Width adjusting device, the voltage of forward end are higher than the voltage of backward end,
The forward end of the switching tube S2 is coupled to the anode of diode D8, and switching tube S2 backward end is coupled to the negative of the first module
Output end；The cathode of diode D8 is coupled to the positive output end of the first module, anode interface；One end of the inductance L2 is coupled to
The anode of diode D8, the other end are coupled to cathode interface；The both ends of the capacitor C2 are respectively coupled to anode interface and cathode connects
Mouthful.
5. a kind of DCDC circulation control device according to claim 1, which is characterized in that second module includes inductance
L4, diode D10, switching tube S4, capacitor C4, the switching tube S4 have control terminal, forward end, backward end, control terminal connection
In PWM Width adjusting device, the voltage of forward end is higher than the voltage of backward end,
One end of the inductance L4 is coupled to the negative output terminal of the first module, and the other end is coupled to the backward end of switching tube S4；Institute
The forward end for stating switching tube S4 is coupled to the positive output end of the first module, anode interface；The cathode of diode D10 is coupled to switch
The backward end of pipe S4, anode are coupled to cathode interface, and the both ends of capacitor 4 are respectively coupled to anode interface and cathode interface.
6. a kind of DCDC circulation control device described in -5 any one according to claim 1, which is characterized in that the DC source
Including AC power source and rectification module, the AC power source forms the power input via the rectification module.
7. a kind of DCDC circular current control method, which is characterized in that use DCDC circulation control as claimed in any one of claims 1 to 6
Device processed comprising:
It obtains the total quantity of converter and is set as N；
It obtains the electric current through overload R and is set as iout；
Obtain the electric current i1 and electric current i2 of each converter；
Judge the numerical value of electric current i1 in each converter, whether the numerical value of electric current i2 is equal to the iout divided by the numerical value of N, if
No, then corresponding first module of synchronously control, the second module make the numerical value of i1 and i2 in each converter be equal to iout divided by N
Numerical value.
8. a kind of electronic equipment comprising processor, storage medium and computer program, the computer program are stored in
In storage media, which is characterized in that the computer program realizes DCDC circulation control as claimed in claim 7 when being executed by processor
Method processed.
9. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
Processor realizes DCDC circular current control method as claimed in claim 7 when executing.
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| CN201910692176.0A CN110311563B (en) | 2019-07-29 | 2019-07-29 | DCDC circulation control device, DCDC circulation control method, electronic apparatus, and medium |
| PCT/CN2019/128544 WO2021017390A1 (en) | 2019-07-29 | 2019-12-26 | Dcdc circulation control apparatus and control method, electronic device, and medium |
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| CN201910692176.0A CN110311563B (en) | 2019-07-29 | 2019-07-29 | DCDC circulation control device, DCDC circulation control method, electronic apparatus, and medium |
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| CN115632545A (en) * | 2022-12-06 | 2023-01-20 | 深圳市永联科技股份有限公司 | Control method and system for power supply circulation |
| WO2023202411A1 (en) * | 2022-04-19 | 2023-10-26 | 华为数字能源技术有限公司 | Power module, charging pile, and power supply device |
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Also Published As
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| WO2021017390A1 (en) | 2021-02-04 |
| CN110311563B (en) | 2021-05-07 |
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Application publication date: 20191008 Assignee: Hangzhou Fuyang Zhongheng Electric Co.,Ltd. Assignor: HANGZHOU ZHONHEN ELECTRIC Co.,Ltd. Contract record no.: X2021330000442 Denomination of invention: DCDC circulating current control device, control method, electronic equipment, medium Granted publication date: 20210507 License type: Common License Record date: 20211018 |
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