CN109412138A - Sharing control system and method - Google Patents
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- CN109412138A CN109412138A CN201811648940.6A CN201811648940A CN109412138A CN 109412138 A CN109412138 A CN 109412138A CN 201811648940 A CN201811648940 A CN 201811648940A CN 109412138 A CN109412138 A CN 109412138A
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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Abstract
The invention discloses a kind of sharing control system and method.Wherein, which includes: multiple to current-sharing module；Current equalizing bus bar module is connected with described to current-sharing module, for determining the average current of multiple current-sharing module outputs；Multiple current sharing control modules, with it is multiple it is described to current-sharing module correspond, the average current for output voltage, output electric current and the current equalizing bus bar according to current-sharing module, determine reference current, and according to the output electric current and the reference current, control is described to export equal galvanic electricity stream to current-sharing module.The present invention solves the technical issues of can not carrying out sharing control.
Description
Technical field
The present invention relates to control fields, in particular to a kind of sharing control system and method.
Background technique
Parallel power supply system, by multiple power module parallel runnings, to provide high-power output.
Due to the limitation of technological level and the inevitable property of error, modules in parallel are participated in real system,
Mutual parameter can not accomplish completely the same, if multiple power modules are directly in parallel, also be bound to it is difficult to ensure that each electricity
The uniform load sharing electric current of source module, it is possible that the electric current of certain power modules output is bigger, certain power modules are defeated
Electric current out is smaller, or even and the case where some modules may not export electric current at all.
It is above-mentioned can not carry out sharing control aiming at the problem that, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of sharing control system and method, at least to solve that sharing control can not be carried out
Technical problem.
According to an aspect of an embodiment of the present invention, a kind of sharing control system is provided, comprising: multiple to flow mould
Block；Current equalizing bus bar, for determining the average current of multiple current-sharing module outputs；Multiple current sharing control modules, with multiple institutes
It states and is corresponded to current-sharing module, for according to the output voltage, output electric current and the average current to current-sharing module,
Determine reference current, and according to the output electric current and the reference current, control is described to export equal galvanic electricity stream to current-sharing module.
Further, current equalizing bus bar module includes: current sampling module, with the multiple output end phase to current-sharing module
Even, for acquiring the output electric current；Flows resistance is connected between the current sampling module and current equalizing bus bar；It is described equal
Bus is flowed, described is connected respectively to the corresponding multiple flows resistances of current-sharing module with multiple.
Further, the current sharing control module includes: Voltage loop, for determining the output voltage and predetermined benchmark electricity
The voltage error value of pressure；Flow equalizing ring, for determining the first current error value of the average current and the output electric current；Electric current
Ring is connected with the Voltage loop and the flow equalizing ring, is used for according to the voltage error value and the first current error value, really
The fixed reference current；Controller is connected with the electric current loop, for according to the reference current, control to be described to flow mould
Block exports equal galvanic electricity stream.
Further, the Voltage loop includes: voltage sample module, for acquiring the output voltage；First amplifier,
Wherein, the first input end of first amplifier is connected with the voltage sample module, for obtaining the output voltage；Institute
The second input terminal for stating the first amplifier, for obtaining the predetermined reference voltage；The output end of first amplifier, is used for
Export the voltage error value.
Further, the flow equalizing ring includes: current sampling module, with the multiple output end phase to current-sharing module
Even, for acquiring the output electric current；Second amplifier, wherein the first input end and the electric current of second amplifier
Sampling module is connected, for obtaining the output electric current；Second input terminal of second amplifier and the current equalizing bus bar phase
Even, for obtaining the average current；The output end of second amplifier, for exporting the first current error value.
Further, the flow equalizing ring further include: flows resistance, be connected to second amplifier first input end and
Between second input terminal of second amplifier.
Further, the electric current loop includes: current sampling module, with the multiple output end phase to current-sharing module
Even, for acquiring the output electric current；Third amplifier, wherein the first input end and the electric current of the third amplifier
Sample circuit is connected, for obtaining the output electric current；Second input terminal of the third amplifier, with the Voltage loop and institute
It states flow equalizing ring to be connected, for obtaining the voltage error value and the first current error value；The output of the third amplifier
End, for exporting the reference current.
According to another aspect of an embodiment of the present invention, a kind of current-sharing control method is additionally provided, comprising: acquisition is to flow mould
The average current that output voltage, output electric current and the multiple current-sharing modules of block export；According to the output voltage, described
Electric current and the average current are exported, determines reference current；According to the output electric current and the reference current, control it is described to
Current-sharing module exports equal galvanic electricity stream.
Further, according to the output voltage, the output electric current and the average current, reference current packet is determined
It includes: determining the voltage error value of the output voltage and predetermined reference voltage；Determine the average current and the output electric current
The first current error value；According to the voltage error value and the first current error value, the reference current is determined.
As a kind of optional embodiment, according to the reference current and the output electric current, control is described to flow mould
Block exports equal galvanic electricity stream and comprises determining that according to the second current error value for exporting electric current and the reference current；According to institute
The second current error value is stated, sharing control signal is generated；According to the sharing control signal, control is described to be exported to current-sharing module
The equal galvanic electricity stream.
Another aspect according to an embodiment of the present invention additionally provides a kind of sharing control device, comprising: acquisition unit is used
In acquisition to the output voltage of current-sharing module, the average current of output electric current and multiple current-sharing module outputs；It determines single
Member, for determining reference current according to the output voltage, the output electric current and the average current；Control unit is used for
According to the output electric current and the reference current, control is described to export equal galvanic electricity stream to current-sharing module.
In embodiments of the present invention, setting current equalizing bus bar determines the average current of multiple current-sharing module outputs, and is multiple
Corresponding current sharing control module is set to current-sharing module, by current sharing control module, the output electricity to current-sharing module can be acquired
The average current of stream and output voltage and current equalizing bus bar, and according to the output voltage of acquisition, output electric current and average current,
Determine reference current, then according to output electric current and reference current, control exports equal galvanic electricity stream to current-sharing module, to realize
It treats current-sharing module and carries out the technical effect of sharing control, and then solve the technical issues of can not carrying out sharing control.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of sharing control system according to an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of parallel current-sharing three close-loop control system according to an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of Dual module parallel current-sharing three close-loop control system according to an embodiment of the present invention；
Fig. 4 is a kind of flow chart of current-sharing control method according to an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of sharing control device according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Fig. 1 is a kind of schematic diagram of sharing control system according to an embodiment of the present invention, as shown in Figure 1, the system includes:
It is multiple to current-sharing module 11；Current equalizing bus bar 13, for determining the average current of multiple current-sharing module outputs；Multiple sharing control moulds
Block 15 is corresponded with multiple to current-sharing module, for according to output voltage, output electric current and the average electricity to current-sharing module
Stream determines reference current, and according to output electric current and reference current, control exports equal galvanic electricity stream to current-sharing module.
The above embodiment of the present invention, setting current equalizing bus bar determine the average current of multiple current-sharing module outputs, and are multiple
Corresponding current sharing control module is set to current-sharing module, by current sharing control module, the output electricity to current-sharing module can be acquired
The average current of stream and output voltage and current equalizing bus bar, and according to the output voltage of acquisition, output electric current and average current,
Determine reference current, then according to output electric current and reference current, control exports equal galvanic electricity stream to current-sharing module, to realize
It treats current-sharing module and carries out the technical effect of sharing control, and then solve the technical issues of can not carrying out sharing control.
As a kind of optional embodiment, current sharing control module includes: Voltage loop, for determining output voltage and predetermined base
The voltage error value of quasi- voltage；Flow equalizing ring, for determining average current and exporting the first current error value of electric current；Electric current loop,
It is connected with Voltage loop and flow equalizing ring, for determining reference current according to voltage error value and the first current error value；Controller,
It is connected with electric current loop, for according to reference current, control to export equal galvanic electricity stream to current-sharing module.
As a kind of optional embodiment, Voltage loop includes: voltage sample module, for acquiring output voltage；First puts
Big device, wherein the first input end of the first amplifier is connected with voltage sample module, for obtaining output voltage；First amplification
Second input terminal of device, for obtaining predetermined reference voltage；The output end of first amplifier is used for output voltage error value.
As a kind of optional embodiment, flow equalizing ring includes: current sampling module, with multiple output ends to current-sharing module
It is connected, for acquiring output electric current；Second amplifier, wherein the first input end of the second amplifier and current sampling module phase
Even, for obtaining output electric current；Second input terminal of the second amplifier is connected with current equalizing bus bar, for obtaining average current；The
The output end of two amplifiers, for exporting the first current error value.
As a kind of optional embodiment, flow equalizing ring further include: flows resistance is connected to the first input of the second amplifier
Between end and the second input terminal of the second amplifier.
As a kind of optional embodiment, electric current loop includes: current sampling module, with multiple output ends to current-sharing module
It is connected, for acquiring output electric current；Third amplifier, wherein the first input end of third amplifier and current sampling circuit phase
Even, for obtaining output electric current；Second input terminal of third amplifier, is connected, for obtaining voltage with Voltage loop and flow equalizing ring
Error amount and the first current error value；The output end of third amplifier is used for outputting reference electric current.
The present invention also provides a kind of preferred embodiment, the preferred embodiment provides a kind of parallel current-sharing three close-loop control system
System.
For the system of high-power DC power supply parallel system namely multiple power modules (i.e. to current-sharing module) parallel connection,
It not only needs system that there is good error resilience performance and reliability, but also needs to realize precise current-equalizing between different parallel modules,
So the present invention determines to select average current model, in control structure in such a way that average current model adds bicyclic adjusting, i.e.,
Fig. 2 is a kind of schematic diagram of parallel current-sharing three close-loop control system according to an embodiment of the present invention, as shown in Fig. 2,
In three close-loop control system, corresponding current sharing control module is arranged in each power module (i.e. to current-sharing module), wherein Voltage loop is made
For control system outer ring, electric current loop is as control system inner ring, while outer voltage and flow equalizing ring are mutually parallel, wherein Voltage loop
It include: voltage sample module SV, amplifier A1；Flow equalizing ring includes: amplifier A2, current equalizing bus bar CSB and flows resistance RS；Electric current
Ring includes: current sampling module SA, amplifier A3.
Optionally, in parallel current-sharing three close-loop control system, the input terminal of multiple power modules (i.e. to current-sharing module) and
Output end is connected in parallel respectively, the corresponding current sampling module S of power module in parallel (i.e. to current-sharing module)a, lead to respectively
Cross corresponding flows resistance RS, it is connected with current equalizing bus bar CSB.
It should be noted that the electric current on current equalizing bus bar CSB is that each power module (i.e. to current-sharing module) exports electric current
Average value (i.e. average current).
Optionally, parallel current-sharing three close-loop control system is replaced according to the output electric current of power module (i.e. to current-sharing module)
Inductive current carries out three close-loop control.
Next it by taking two groups of power modules (i.e. to current-sharing module) as an example, is described in detail.
Fig. 3 is a kind of schematic diagram of Dual module parallel current-sharing three close-loop control system according to an embodiment of the present invention, such as Fig. 3 institute
Show, the input terminal and output end of two power module D1 and D2 (i.e. to current-sharing module) are connected in parallel respectively.
Wherein, in the corresponding current sharing control module of power module D1, Voltage loop includes: voltage sample module SV1, amplifier
A11；Flow equalizing ring includes: amplifier A12, current equalizing bus bar CSB and flows resistance RS1；Electric current loop includes: current sampling module SA1,
Amplifier A13；In the corresponding current sharing control module of power module D2, Voltage loop includes: voltage sample module SV2, amplifier A21；
Flow equalizing ring includes: amplifier A22, current equalizing bus bar CSB and flows resistance RS2；Electric current loop includes: current sampling module SA2, amplification
Device A23；
It should be noted that so-called sharing control is exactly to realize that each power module is (i.e. to flow in parallel system
Module) output electric current it is equal.
Optionally, by parallel system on current equalizing bus bar CSB current signal (i.e. average current) and each submodule (i.e. to
Current-sharing module) output sampled current signals (i.e. output electric current) make it is poor, by obtained error signal (i.e. the first current error
Value) after amplifier A2 amplification, after being added with signal (i.e. voltage error value) of the Voltage loop after error amplifier A1, obtain
A reference value (i.e. reference current) of the value arrived as electric current loop.When in system some power module (i.e. to current-sharing module) it is defeated
Out when current reduction, it will the error signal (i.e. the first current error value) for exporting the error amplifier A2 of flow equalizing ring increases
Greatly, it so that the reference current of electric current loop be made to increase, increase the output electric current of this module (i.e. to current-sharing module) will, thus
Realize parallel current-sharing function；If actual output current value is equal between each module (i.e. to current-sharing module), each module is (i.e. at this time
To current-sharing module) output electric current is equal with the average current on current equalizing bus bar, and there is no electric current to flow through on flows resistance, therefore flow equalizing ring
The error signal (i.e. the first current error value) of output is zero.
The above embodiment of the present invention, since electric current loop has the characteristics that dynamic response is fast, electric current loop is as control system
The inner ring of system can be such that the dynamic property of whole system is significantly improved.Secondly, simultaneously with voltage inter-loop phase by flow equalizing ring
Row can carry out jointly according to equal stream error signal (i.e. the first current error value) and voltage error signal (i.e. voltage error value)
Sharing control.
Technical solution provided by the invention, outer voltage no longer limit the frequency bandwidth of flow equalizing ring, make whole system dynamic
Performance is greatly improved.
According to embodiments of the present invention, a kind of current-sharing control method embodiment is provided, it should be noted that in the stream of attached drawing
The step of journey illustrates can execute in a computer system such as a set of computer executable instructions, although also, flowing
Logical order is shown in journey figure, but in some cases, it can be to be different from shown or described by sequence execution herein
The step of.
Fig. 4 is a kind of flow chart of current-sharing control method according to an embodiment of the present invention, as shown in figure 4, this method includes
Following steps:
Step S402 acquires the average electricity of the output voltage to current-sharing module, output electric current and the output of multiple current-sharing modules
Stream；
Step S404 determines reference current according to output voltage, output electric current and average current；
Step S406, according to output electric current and reference current, control exports equal galvanic electricity stream to current-sharing module.
Through the above steps, it can acquire to the output electric current and output voltage of current-sharing module and putting down for current equalizing bus bar
Equal electric current, and according to the output voltage of acquisition, output electric current and average current, reference current is determined, then according to output electric current
And reference current, control export equal galvanic electricity stream to current-sharing module, treat the skill that current-sharing module carries out sharing control to realize
Art effect, and then solve the technical issues of can not carrying out sharing control.
Reference current packet is determined according to output voltage, output electric current and average current as a kind of optional embodiment
It includes: determining the voltage error value of output voltage and predetermined reference voltage；It determines average current and exports the first electric current mistake of electric current
Difference；According to voltage error value and the first current error value, reference current is determined.
As a kind of optional embodiment, according to reference current and output electric current, control exports equal galvanic electricity to current-sharing module
Stream comprises determining that the second current error value according to output electric current and reference current；According to the second current error value, generation is flowed
Control signal；According to sharing control signal, control exports equal galvanic electricity stream to current-sharing module.
According to embodiments of the present invention, a kind of sharing control Installation practice is additionally provided, it should be noted that the equal flow control
Device processed can be used for executing the current-sharing control method in the embodiment of the present invention, and the current-sharing control method in the embodiment of the present invention can
To be executed in the sharing control device.
Fig. 5 is a kind of schematic diagram of sharing control device according to an embodiment of the present invention, as shown in figure 5, the device can be with
It include: acquisition unit 51, for acquiring the output voltage to current-sharing module, output electric current and multiple current-sharing module outputs
Average current；Determination unit 53, for determining base according to the output voltage, the output electric current and the average current
Quasi- electric current；Control unit 55, for according to the output electric current and the reference current, control to be described equal to current-sharing module output
Galvanic electricity stream.
It should be noted that the acquisition unit 51 in the embodiment can be used for executing the step in the embodiment of the present application
S102, the determination unit 534 in the embodiment can be used for executing the step S104 in the embodiment of the present application, in the embodiment
Control unit 55 can be used for executing the step S106 in the embodiment of the present application.Said units are shown with what corresponding step was realized
Example is identical with application scenarios, but is not limited to the above embodiments disclosure of that.
The above embodiment of the present invention is acquired to the output electric current and output voltage of current-sharing module and putting down for current equalizing bus bar
Equal electric current, and according to the output voltage of acquisition, output electric current and average current, reference current is determined, then according to output electric current
And reference current, control export equal galvanic electricity stream to current-sharing module, treat the skill that current-sharing module carries out sharing control to realize
Art effect, and then solve the technical issues of can not carrying out sharing control.
As a kind of optional embodiment, root determination unit includes: the first determining module, for determining output voltage and pre-
Determine the voltage error value of reference voltage；Second determining module, for determining average current and exporting the first current error of electric current
Value；Third determining module, for determining reference current according to voltage error value and the first current error value.
As a kind of optional embodiment, control unit includes: the 4th determining module, for determine according to output electric current and
Second current error value of reference current；Generation module, for generating sharing control signal according to the second current error value；Control
Molding block, for according to sharing control signal, control to export equal galvanic electricity stream to current-sharing module.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of sharing control system characterized by comprising
It is multiple to current-sharing module；
Current equalizing bus bar, for determining the average current of multiple current-sharing module outputs；
Multiple current sharing control modules, with it is multiple it is described corresponded to current-sharing module, for according to described to the defeated of current-sharing module
Voltage, the output electric current and average current out, determine reference current, and according to the output electric current and the reference current,
Control is described to export equal galvanic electricity stream to current-sharing module.
2. system according to claim 1, which is characterized in that the current sharing control module includes:
Voltage loop, for determining the voltage error value of the output voltage and predetermined reference voltage；
Flow equalizing ring, for determining the first current error value of the average current and the output electric current；
Electric current loop is connected with the Voltage loop and the flow equalizing ring, for according to the voltage error value and first electric current
Error amount determines the reference current；
Controller is connected with the electric current loop, for according to the reference current, control is described to export equal galvanic electricity to current-sharing module
Stream.
3. system according to claim 2, which is characterized in that the Voltage loop includes:
Voltage sample module, for acquiring the output voltage；
First amplifier, wherein the first input end of first amplifier is connected with the voltage sample module, for obtaining
The output voltage；Second input terminal of first amplifier, for obtaining the predetermined reference voltage；First amplification
The output end of device, for exporting the voltage error value.
4. system according to claim 2, which is characterized in that the flow equalizing ring includes:
Current sampling module is connected with the multiple output end to current-sharing module, for acquiring the output electric current；
Second amplifier, wherein the first input end of second amplifier is connected with the current sampling module, for obtaining
The output electric current；Second input terminal of second amplifier is connected with the current equalizing bus bar, for obtaining the average electricity
Stream；The output end of second amplifier, for exporting the first current error value.
5. system according to claim 4, which is characterized in that the flow equalizing ring further include:
Flows resistance, be connected to second amplifier first input end and second amplifier the second input terminal it
Between.
6. system according to claim 2, which is characterized in that the electric current loop includes:
Current sampling module is connected with the multiple output end to current-sharing module, for acquiring the output electric current；
Third amplifier, wherein the first input end of the third amplifier is connected with the current sampling circuit, for obtaining
The output electric current；Second input terminal of the third amplifier, is connected, for obtaining with the Voltage loop and the flow equalizing ring
The voltage error value and the first current error value；The output end of the third amplifier, for exporting the benchmark electricity
Stream.
7. a kind of current-sharing control method characterized by comprising
Acquire the average current of the output voltage to current-sharing module, output electric current and multiple current-sharing module outputs；
According to the output voltage, the output electric current and the average current, reference current is determined；
According to the output electric current and the reference current, control is described to export equal galvanic electricity stream to current-sharing module.
8. the method according to the description of claim 7 is characterized in that according to the output voltage, the output electric current and described
Average current determines that reference current includes:
Determine the voltage error value of the output voltage and predetermined reference voltage；
Determine the first current error value of the average current and the output electric current；
According to the voltage error value and the first current error value, the reference current is determined.
9. the method according to the description of claim 7 is characterized in that being controlled according to the reference current and the output electric current
It is described to include: to the equal galvanic electricity stream of current-sharing module output
Determine the second current error value according to the output electric current and the reference current；
According to the second current error value, sharing control signal is generated；
According to the sharing control signal, control is described to export the equal galvanic electricity stream to current-sharing module.
10. a kind of sharing control device characterized by comprising
Acquisition unit, for acquiring the flat of the output voltage to current-sharing module, output electric current and multiple current-sharing module outputs
Equal electric current；
Determination unit, for determining reference current according to the output voltage, the output electric current and the average current；
Control unit, for according to the output electric current and the reference current, control is described to export equal galvanic electricity to current-sharing module
Stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648940.6A CN109412138A (en) | 2018-12-30 | 2018-12-30 | Sharing control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648940.6A CN109412138A (en) | 2018-12-30 | 2018-12-30 | Sharing control system and method |
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| CN109412138A true CN109412138A (en) | 2019-03-01 |
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| CN201811648940.6A Pending CN109412138A (en) | 2018-12-30 | 2018-12-30 | Sharing control system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932383A (en) * | 2019-12-04 | 2020-03-27 | 厦门市爱维达电子有限公司 | UPS parallel current-sharing control method sharing DC bus |
| CN112510677A (en) * | 2020-11-26 | 2021-03-16 | 武汉中直电气股份有限公司 | Current equalizing method, device and system for interleaved Buck converters |
| CN114336574A (en) * | 2021-11-02 | 2022-04-12 | 陕西科技大学 | Parallel current-sharing control method for direct-current power supply modules |
-
2018
- 2018-12-30 CN CN201811648940.6A patent/CN109412138A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932383A (en) * | 2019-12-04 | 2020-03-27 | 厦门市爱维达电子有限公司 | UPS parallel current-sharing control method sharing DC bus |
| CN112510677A (en) * | 2020-11-26 | 2021-03-16 | 武汉中直电气股份有限公司 | Current equalizing method, device and system for interleaved Buck converters |
| CN112510677B (en) * | 2020-11-26 | 2024-05-28 | 武汉中直电气股份有限公司 | Flow equalizing method, device and system for staggered parallel Buck converter |
| CN114336574A (en) * | 2021-11-02 | 2022-04-12 | 陕西科技大学 | Parallel current-sharing control method for direct-current power supply modules |
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Application publication date: 20190301 |