CN107591792A - A kind of current sharing control method and device - Google Patents
A kind of current sharing control method and device Download PDFInfo
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- CN107591792A CN107591792A CN201710959644.7A CN201710959644A CN107591792A CN 107591792 A CN107591792 A CN 107591792A CN 201710959644 A CN201710959644 A CN 201710959644A CN 107591792 A CN107591792 A CN 107591792A
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Abstract
The embodiment of the present invention proposes a kind of current sharing control method and device, is related to power technique fields.This method and device are first depending on circuit parameter information and presetting circuit parameter reference value calculates first and flows specified rate, the the second stream specified rate for flowing specified rate and multiple second source module transfers based on described first again determines that the 3rd flows specified rate, it is next based on the 3rd voltage specified rate for flowing specified rate and the first output current sampled value the first power module of calculating, it is achieved thereby that the sharing control of multiple power modules, due to master slave relation being not present between each power module, thus when any one power module exits or adds in parallel, it can again and promptly determine that new first flows specified rate, the fluctuation of system output during so as to fully weaken power module input or cut out, reach new stable state in short period, improve the stability of system and sufficient redundancy.
Description
Technical field
The present invention relates to power technique fields, in particular to a kind of current sharing control method and device.
Background technology
High-power high-frequency switch power supply, due to being limited by the devices such as IGBT power tubes and high frequency transformer, and meanwhile it is small
Type, switching frequency needs are higher, and individual module power is typically not too large, it is therefore desirable to which multiple wired in parallel improve defeated
Go out the ability of power.
In the prior art, Parallel opertation control program mainly has two kinds.First, using master slave mode, it is individually with a master
Machine controls multiple slave moulds simultaneously, but main frame once goes wrong, and whole system will be in failure holding state.Second, it can pass through
Current equalizing bus bar interconnection is simulated, each module gathers the stream that current equalizing bus bar value does system simultaneously, but this mode needs to calculate and born
Load rate and outer shroud gain, it is required for changing giving for the control characteristic of outer shroud, its complex disposal process, and inner ring electric current loop at any time
Fixed each module is individually to calculate, although have modified outer shroud proportional gain, is compensated by current correction amount, each module warp
Outer shroud voltage acquisition and internal calculation process are crossed, it is difficult to ensure that without any deviation；Even if each modular power is consistent simultaneously,
This method all cannot be guaranteed each module after Voltage loop and compensation, the electric current loop of inner ring it is given just the same, from
And it cannot be guaranteed the equal properties of flow of each module；In addition, when module exit it is in parallel or when entering parallel connection, its initial procedure compared with
Long, module can not immediately enter equal stream mode, and system complexity is high, and is easily disturbed.
The content of the invention
It is an object of the invention to provide a kind of current sharing control method and device, to solve the above problems.
To achieve these goals, the technical scheme that the embodiment of the present invention uses is as follows：
In a first aspect, the embodiments of the invention provide a kind of current sharing control method, applied to the first power module, institute
The first power module and multiple second source wired in parallel are stated, first power module leads to multiple second source modules
Letter connection, the current sharing control method include：
The circuit parameter sampled value of first power module is gathered, the circuit parameter sampled value includes the first output electricity
Flow sampled value；
Calculated according to the circuit parameter sampled value, presetting circuit parameter reference value and presetting computation rule
First flows specified rate using the output quantity as an adjuster；
Receive multiple second source module transfers second flows specified rate；
Output quantity based on the adjuster, multiple described second flow specified rate and determine that the 3rd flows specified rate；
The output quantity of the adjuster is updated to the described 3rd and flows specified rate；
Specified rate is flowed according to the described 3rd and the first output current sampled value adjusts first power module
Output current.
Second aspect, the embodiment of the present invention additionally provide a kind of current sharing control device,
Applied to the first power module, first power module and multiple second source wired in parallel, first electricity
Source module communicates to connect with multiple second source modules, and the current sharing control device includes：
Circuit parameter collecting unit, for gathering the circuit parameter sampled value of first power module, the circuit ginseng
Number sampled value includes the first output current sampled value；
Computing unit, it is equal for calculating first according to the circuit parameter sampled value and presetting circuit parameter reference value
Specified rate is flowed using the output as an adjuster；
Receiving unit, second for receiving multiple second source module transfers flows specified rate；
3rd flow specified rate determining unit, for the output quantity based on the adjuster, multiple described second flow to
Quantitative and presetting computation rule determines that the 3rd flows specified rate；
Updating block, flow specified rate for the output quantity of the adjuster to be updated into the described 3rd；
Adjustment unit, for flowing specified rate and the first output current sampled value adjustment described the according to the described 3rd
The output current of one power module.
Current sharing control method and device provided in an embodiment of the present invention, it is first depending on circuit parameter information and presetting
Circuit parameter reference value calculate first and flow specified rate, then flow specified rate and multiple second source modules based on described first
The stream specified rate of the second of transmission determines that the 3rd flows specified rate, is next based on the 3rd stream specified rate and the first output current and adopts
Sample value calculates the voltage specified rate of the first power module, it is achieved thereby that the sharing control of multiple power modules, due to each electricity
Master slave relation is not present between source module, thus when any one power module goes wrong and exits parallel connection, can weigh
Determine newly and that promptly new first flows specified rate, so as to ensure that the stability of output and sufficient redundancy；Together
When by power module internal processing algorithms, the fluctuation of system output when can fully weaken power module input or cut out, compared with
Reach new stable state in short time, avoid output mutation excessive or shut down the influence to user load, avoid bringing damage to user
Lose.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows the circuit structure block diagram of parallel power supply system provided in an embodiment of the present invention.
Fig. 2 shows the flow chart for the current sharing control method that first embodiment of the invention provides.
Fig. 3 shows the flow chart for the current sharing control method that second embodiment of the invention provides.
Fig. 4 shows the functional block diagram for the current sharing control device that third embodiment of the invention provides.
Icon：100- parallel power supply systems；110- power modules；120- fieldbus；200- current sharing control devices；
210- circuit parameter collecting units；220- computing units；230- receiving units；240- the 3rd flows specified rate determining unit；
250- updating blocks；260- adjustment units；270- transmission units.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be configured to arrange and design with a variety of herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.Meanwhile the present invention's
In description, term " first ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
Referring to Fig. 1, the circuit structure block diagram for parallel power supply system 100 provided in an embodiment of the present invention.Parallel connection electricity
Source system 100 is used to provide operating voltage for load.Specifically, parallel power supply system 100 include multiple power modules 110 and
Fieldbus 120, multiple power modules 110 are parallel with one another, and are communicated to connect by fieldbus 120.
Specifically, each power module 110 includes voltage regulator, MUX selectors, current regulator and pulsewidth tune
Make (PWM) module.Voltage regulator, MUX selectors, current regulator and pulse width modulation module are sequentially connected electrically, MUX selections
Device is also connected with fieldbus 120.
Fieldbus 120 is used to realize that the information between multiple power modules 110 to exchange.In a kind of preferred embodiment
In, the fieldbus 120 is CAN, and CAN has the advantages that efficiency of transmission is fast, stable；It should be noted that at it
In his embodiment, fieldbus 120 can also be other kinds of bus, such as Ethernet.
First embodiment
The embodiments of the invention provide a kind of current sharing control method, applied to the first power module, for controlling simultaneously
Join the output current of power-supply system 100.It should be noted that in embodiments of the present invention, by appointing in multiple power modules 110
One power module 110 of meaning is used as the first power module, then remaining all power module 110 is second source module.
Referring to Fig. 2, the flow chart for current sharing control method provided in an embodiment of the present invention.The current sharing control
Method includes：
Step S201：Gather the circuit parameter sampled value of the first power module.
The circuit parameter sampled value includes but are not limited to the output voltage sampled value of the first power module and first defeated
Go out current sampling data etc..
Step S202：First, which is calculated, according to circuit parameter sampled value and presetting circuit parameter reference value flows specified rate
Using the output quantity as an adjuster.
It should be noted that to ensure that each power module 110 has an identical output characteristics, the first power module it is pre-
The presetting circuit parameter reference value of the circuit parameter reference value of setting and multiple second source modules is consistent.
Meanwhile the presetting circuit parameter reference value can make different changes with the real needs of user.Such as
When user's request parallel power supply system 100 exports constant voltage, the circuit parameter reference value is voltage reference value；Work as user
When demand parallel power supply system 100 exports constant current, the circuit parameter reference value is current reference value；When user's request simultaneously
When joining the output firm power of power-supply system 100, the circuit parameter reference value is value and power reference.
Step S203：Receive multiple second source module transfers second flows specified rate.
It is to be appreciated that each second source module can be according to the circuit parameter sampled value and presetting of itself
Circuit parameter reference value calculates the stream specified rate of itself, and as second flows specified rate.Meanwhile each second source module
Second stream specified rate can be broadcasted to the first power module or other second source modules by fieldbus 120.
Thus the first power module can flow specified rate to receive the second of all second source modules.
Step S204：Output quantity based on adjuster, multiple second flow specified rate and presetting computation rule is true
Fixed 3rd flows specified rate.
It should be noted that all second stream specified rate can be transmitted to the MUX selectors of the first power module, should
MUX selectors determine that the 3rd stream is given according to the multiple second output quantities for flowing adjuster in specified rate and the first power module
Amount.
Specifically, the presetting computation rule includes but are not limited to three kinds：
The first：
Using maximum value-based algorithm, i.e., flow specified rate from multiple second and the first power module itself first flow and given
The value that maximum is selected in amount flows specified rate as the 3rd.
Second：
Using minimum value-based algorithm, i.e., flow specified rate from multiple second and the first power module itself first flow and given
The value that minimum is selected in amount flows specified rate as the 3rd.
The third：
Using average algorithm, i.e., multiple second are flowed specified rate and the first power module itself first flow and given
Amount adds up, then divided by the quantity of all power modules 110 flow specified rate so as to obtain the 3rd.
The 3rd mode for flowing specified rate is determined by using this, can to work as any in parallel power supply system 100
One module go wrong exit it is in parallel or suddenly loading input when, the first power module can promptly redefine the
Three flow specified rate, so as to which the 3rd stream specified rate ensured between power module 110 is able to maintain that, will not become big moment suddenly
Or diminish, parallel power supply system 100 is ensure that when there is power module 110 to go offline or load, and the stable state of system fading margin, which is crossed, to be tided over
Journey.
Step S205：The output quantity of adjuster is updated to the 3rd and flows specified rate.
It is to be appreciated that the output quantity of adjuster is updated to the 3rd flow specified rate after, MUX selectors then again meeting
Specified rate is flowed with the output quantity after renewal and second after renewal redefine new the 3rd and flow specified rate；Followed with this
Ring, thereby may be ensured that the uniformity of all power modules 110, can avoid each power module 110 outer shroud adjust because
Error calculation and sideslip, module regulation output is retracted toward stablizing unified direction all the time.
Step S206：Specified rate is flowed according to the 3rd and the first output current sampled value adjusts the output of the first power module
Electric current.
The output current that specified rate and the first output current sampled value adjust the first power module is flowed by the 3rd, can be with
Ensure the current sharing of the first power module.
It is to be appreciated that above-mentioned steps are the outer shroud control process of parallel power supply system 100.In the embodiment of the present invention
In, the outer shroud control of parallel power supply system 100 includes but are not limited to outer shroud Isobarically Control, outer shroud current constant control and outer shroud perseverance
Power Control.
It should be noted that due to second source module be also required to according to the first power module first flow specified rate and
The second of other second source modules flows specified rate to determine that the 3rd flows specified rate, thus it is provided in an embodiment of the present invention simultaneously
Connection current-sharing control method also includes：First stream specified rate is transmitted to second source module.
Second embodiment
Referring to Fig. 3, Fig. 3 is a kind of current sharing control method that present pre-ferred embodiments provide.Need what is illustrated
It is the current sharing control method that the present embodiment is provided, its general principle and caused technique effect and above-described embodiment phase
Together, to briefly describe, the present embodiment part does not refer to part, refers to corresponding contents in the above embodiments.The parallel current-sharing
Control method includes：
Step S301：Gather the output voltage sampled value of the first power module.
Step S302：First, which is calculated, according to output voltage sampled value and presetting voltage reference value flows specified rate to make
For the output quantity of a voltage regulator.
Step S303：Receive multiple second source module transfers second flows specified rate.
Step S304：Output quantity based on voltage regulator, multiple second flow specified rate and presetting calculating rule
Then determine that the 3rd flows specified rate.
Step S305：The output quantity of the voltage regulator is updated to the described 3rd and flows specified rate.
Step S306：Specified rate is flowed according to the 3rd and the first output current sampled value adjusts the output of the first power module
Electric current.
It is to be appreciated that in embodiments of the present invention, circuit parameter sampled value includes the output voltage of the first power module
Sampled value, presetting circuit parameter reference value include voltage reference value.Meanwhile above-mentioned steps are the control of outer shroud constant pressure
Journey.
It should be noted that the output voltage that the first power module is included but are not limited to due to circuit parameter sampled value is adopted
Sample value and the first output current sampled value etc.；Correspondingly, presetting circuit parameter reference value is also included but not only
It is limited to voltage reference value, current reference value and value and power reference etc..
Thus in a kind of preferred embodiment, when user's request outer shroud current constant control, it will be carried in above-described embodiment
And voltage regulator be adjusted to current regulator, thus multiple second source modules can by fieldbus 120 by itself
Second output current sampled value is transmitted to the first power module, the first power module and is being superimposed multiple second output current sampled values
And first output current sampled value so as to obtain the 3rd output current sampled value after, then according to the 3rd output current sampled value and pre-
The current reference value of setting calculates first and flows specified rate using the output as the current regulator.
In another preferred embodiment, when user's request outer shroud power limitation control, it will be carried in above-described embodiment
And voltage regulator be adjusted to power governor, thus multiple second source modules can by fieldbus 120 by itself
Second output current sampled value is transmitted to the first power module, the first power module be superimposed multiple second output current sampled values and
First output current sampled value is so as to obtain the 3rd output current sampled value, and based on the 3rd output current sampled value and output
After voltage sample value calculates power samples value, it is given to calculate the first stream according to power samples value and presetting value and power reference
Measure using the output as the power governor.
3rd embodiment
Referring to Fig. 4, Fig. 4 is a kind of current sharing control device 200 that present pre-ferred embodiments provide.Need to illustrate
, current sharing control device 200 that the present embodiment is provided, its general principle and caused technique effect and above-mentioned implementation
Example is identical, and to briefly describe, the present embodiment part does not refer to part, refers to corresponding contents in the above embodiments.The parallel connection
Sharing control device 200 includes：Circuit parameter collecting unit 210, computing unit 220, receiving unit the 230, the 3rd flow given
Measure determining unit 240, updating block 250, adjustment unit 260 and transmission unit 270.
Circuit parameter collecting unit 210 is used for the circuit parameter sampled value for gathering the first power module, circuit parameter sampling
Value includes the first output current sampled value.
It is to be appreciated that in a kind of preferred embodiment, circuit parameter collecting unit 210 can be used for performing step
S201。
Computing unit 220 is used to flow according to circuit parameter sampled value and presetting circuit parameter reference value calculating first
Specified rate is using the output as an adjuster.
It is to be appreciated that in a kind of preferred embodiment, computing unit 220 can be used for performing step S202.
Receiving unit 230, which is additionally operable to receive the second of multiple second source module transfers, flows specified rate.
It is to be appreciated that in a kind of preferred embodiment, receiving unit 230 can be used for performing step S203.
3rd flow specified rate determining unit 240 be used for the output quantity based on adjuster, multiple second flow specified rate with
And presetting computation rule determines that the 3rd flows specified rate.
It is to be appreciated that in a kind of preferred embodiment, the 3rd, which flows specified rate determining unit 240, can be used for performing step
Rapid S204.
Updating block 250 flows specified rate for the output quantity of adjuster to be updated into the 3rd.
It is to be appreciated that in a kind of preferred embodiment, updating block 250 can be used for performing step S205.
Adjustment unit 260 is used to flow specified rate according to the 3rd and the first output current sampled value adjusts the first power module
Output current.
It is to be appreciated that in a kind of preferred embodiment, adjustment unit 260 can be used for performing step S206.
It should be noted that due to second source module be also required to according to the first power module first flow specified rate and
The second of other second source modules flows specified rate to determine that the 3rd flows specified rate, thus transmission unit 270 is used for the
One stream specified rate is transmitted to second source module.
In summary, current sharing control method and device provided in an embodiment of the present invention, it is first depending on circuit parameter letter
Breath and presetting circuit parameter reference value calculate first and flow specified rate, then flow specified rate and multiple the based on described first
The stream specified rate of the second of two power modules transmission determines that the 3rd flows specified rate, is next based on the 3rd and flows specified rate and first
Output current sampled value calculates the voltage specified rate of the first power module, it is achieved thereby that the sharing control of multiple power modules,
Due to being not present master slave relation between each power module, thus when any one power module goes wrong and exits parallel connection
When, can again and promptly determine that new first flows specified rate, so as to ensure that the stability of output and fully
Redundancy；Simultaneously by power module internal processing algorithms, system is defeated when can fully weaken power module input or cut out
The fluctuation gone out, new stable state is reached in the short period, avoids output mutation excessive or shut down influence to user load, avoid to
User brings loss.
It should be noted that herein, such as first and 3rd or the like relational terms be used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.It should be noted that：Similar label and letter exists
Similar terms is represented in following accompanying drawing, therefore, once being defined in a certain Xiang Yi accompanying drawing, is then not required in subsequent accompanying drawing
It is further defined and explained.
Claims (10)
- A kind of 1. current sharing control method, it is characterised in that applied to the first power module, first power module with it is more Individual second source wired in parallel, first power module communicate to connect with multiple second source modules, described in parallel equal Method of flow control includes：The circuit parameter sampled value of first power module is gathered, the circuit parameter sampled value is adopted including the first output current Sample value；First is calculated according to the circuit parameter sampled value, presetting circuit parameter reference value and presetting computation rule Specified rate is flowed using the output quantity as an adjuster；Receive multiple second source module transfers second flows specified rate；Output quantity based on the adjuster, multiple described second flow specified rate and determine that the 3rd flows specified rate；The output quantity of the adjuster is updated to the described 3rd and flows specified rate；Specified rate is flowed according to the described 3rd and the first output current sampled value adjusts the output of first power module Electric current.
- 2. current sharing control method as claimed in claim 1, it is characterised in that the circuit parameter sampled value also includes institute The output voltage sampled value of the first power module is stated, the presetting circuit parameter reference value includes voltage reference value, described Adjuster includes voltage regulator, described to calculate the according to the circuit parameter sampled value and presetting circuit parameter reference value One, which flows specified rate, was included using the step of output as an adjuster：Described first, which is calculated, according to the output voltage sampled value and presetting voltage reference value flows specified rate to be used as institute State the output of voltage regulator.
- 3. current sharing control method as claimed in claim 1, it is characterised in that the presetting circuit parameter reference value Including current reference value, the adjuster includes current regulator, described according to the circuit parameter sampled value and presetting Circuit parameter reference value calculate first flow specified rate the step of before, the current sharing control method also includes：Receive the second output current sampled value of multiple second source module transfers；Multiple second output current sampled values and the first output current sampled value are superimposed so as to obtain the 3rd output electricity Flow sampled value；It is described to calculate the first stream specified rate to be used as one according to circuit parameter sampled value and presetting circuit parameter reference value The step of output of adjuster, includes：Described first, which is calculated, according to the 3rd output current sampled value and presetting current reference value flows specified rate to make For the output of the current regulator.
- 4. current sharing control method as claimed in claim 3, it is characterised in that the circuit parameter sampled value includes described The output voltage sampled value of first power module, the presetting circuit parameter reference value also includes value and power reference, described Adjuster includes power governor, is adopted in the multiple second output current sampled values of the superposition and first output current After the step of sample value is so as to obtain the 3rd output current sampled value, the current sharing control method also includes：Power samples value is calculated based on the 3rd output current sampled value and the output voltage sampled value；It is described to calculate the first stream specified rate to be used as one according to circuit parameter sampled value and presetting circuit parameter reference value The step of output of adjuster, also includes：First, which is calculated, according to the power samples value and presetting value and power reference flows specified rate to be adjusted as the power Save the output of device.
- 5. the current sharing control method as described in any one in claim 1-4, it is characterised in that the parallel current-sharing control Method processed also includes：Described first stream specified rate is transmitted to the second source module.
- A kind of 6. current sharing control device, it is characterised in that applied to the first power module, first power module with it is more Individual second source wired in parallel, first power module communicate to connect with multiple second source modules, described in parallel equal Flow control device includes：Circuit parameter collecting unit, for gathering the circuit parameter sampled value of first power module, the circuit parameter is adopted Sample value includes the first output current sampled value；Computing unit, for according to the circuit parameter sampled value and presetting circuit parameter reference value calculate first flow to Quantify using the output as an adjuster；Receiving unit, second for receiving multiple second source module transfers flows specified rate；3rd flows specified rate determining unit, flows specified rate for the output quantity based on the adjuster, multiple described second And presetting computation rule determines that the 3rd flows specified rate；Updating block, flow specified rate for the output quantity of the adjuster to be updated into the described 3rd；Adjustment unit, for flowing specified rate and the first output current sampled value adjustment first electricity according to the described 3rd The output current of source module.
- 7. current sharing control device as claimed in claim 6, it is characterised in that the circuit parameter sampled value also includes institute The output voltage sampled value of the first power module is stated, the presetting circuit parameter reference value includes voltage reference value, described Adjuster includes voltage regulator, and the computing unit is additionally operable to according to the output voltage sampled value and presetting voltage ginseng Examine value calculating described first and flow specified rate using the output as the voltage regulator.
- 8. current sharing control device as claimed in claim 6, it is characterised in that the presetting circuit parameter reference value Including current reference value, the adjuster includes current regulator, and the receiving unit is additionally operable to receive multiple second electricity Second output current sampled value of source module transmission；The current sharing control device also includes：Superpositing unit, for be superimposed multiple second output current sampled values and The first output current sampled value is so as to obtaining the 3rd output current sampled value；The computing unit is additionally operable to calculate first according to the 3rd output current sampled value and presetting current reference value Specified rate is flowed using the output as the current regulator.
- 9. current sharing control device as claimed in claim 8, it is characterised in that the circuit parameter sampled value includes described The output voltage sampled value of first power module, the presetting circuit parameter reference value also includes value and power reference, described Adjuster includes power governor, and the computing unit is additionally operable to based on the 3rd output current sampled value and the output electricity Sampled value is pressed to calculate power samples value；The computing unit is additionally operable to given according to the power samples value and the stream of presetting value and power reference calculating first Measure using the output as the power governor.
- 10. the current sharing control device as described in any one in claim 6-9, it is characterised in that the parallel current-sharing Control device also includes transmission unit, for the described first stream specified rate to be transmitted to the second source module.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769664A (en) * | 2021-01-07 | 2021-05-07 | 易事特集团(河南)有限公司 | Current sharing control method, multi-power-supply parallel system and storage medium |
| CN118759349A (en) * | 2024-09-05 | 2024-10-11 | 杭州长川科技股份有限公司 | Multi-channel power supply board and semiconductor test system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005903A (en) * | 2009-08-28 | 2011-04-06 | 华为技术有限公司 | Digital current equalizing method of power source module, power source module and communication equipment |
| CN102013826A (en) * | 2010-12-01 | 2011-04-13 | 北京理工大学 | Stable current control method for input-series output-parallel high-frequency link inverter module |
| CN102122896A (en) * | 2011-04-15 | 2011-07-13 | 国网电力科学研究院 | Sine wave inverter parallel system with variable current ratio |
| CN102263496A (en) * | 2011-07-20 | 2011-11-30 | 北京理工大学 | A Power Sharing Control Method for Multi-module DC-DC Converters |
| CN102769385A (en) * | 2012-05-28 | 2012-11-07 | 华为技术有限公司 | Multi-phase parallel current sharing control method, device and system |
| CN103219906A (en) * | 2013-04-10 | 2013-07-24 | 哈尔滨工程大学 | Method for suppressing active circulation with parallel three-phase inverters |
| CN103455079A (en) * | 2013-09-10 | 2013-12-18 | 昆山奥德鲁自动化技术有限公司 | Digital voltage-sharing method of voltage sources |
-
2017
- 2017-10-16 CN CN201710959644.7A patent/CN107591792A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005903A (en) * | 2009-08-28 | 2011-04-06 | 华为技术有限公司 | Digital current equalizing method of power source module, power source module and communication equipment |
| CN102013826A (en) * | 2010-12-01 | 2011-04-13 | 北京理工大学 | Stable current control method for input-series output-parallel high-frequency link inverter module |
| CN102122896A (en) * | 2011-04-15 | 2011-07-13 | 国网电力科学研究院 | Sine wave inverter parallel system with variable current ratio |
| CN102263496A (en) * | 2011-07-20 | 2011-11-30 | 北京理工大学 | A Power Sharing Control Method for Multi-module DC-DC Converters |
| CN102769385A (en) * | 2012-05-28 | 2012-11-07 | 华为技术有限公司 | Multi-phase parallel current sharing control method, device and system |
| CN103219906A (en) * | 2013-04-10 | 2013-07-24 | 哈尔滨工程大学 | Method for suppressing active circulation with parallel three-phase inverters |
| CN103455079A (en) * | 2013-09-10 | 2013-12-18 | 昆山奥德鲁自动化技术有限公司 | Digital voltage-sharing method of voltage sources |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769664A (en) * | 2021-01-07 | 2021-05-07 | 易事特集团(河南)有限公司 | Current sharing control method, multi-power-supply parallel system and storage medium |
| CN118759349A (en) * | 2024-09-05 | 2024-10-11 | 杭州长川科技股份有限公司 | Multi-channel power supply board and semiconductor test system |
| CN118759349B (en) * | 2024-09-05 | 2025-01-21 | 杭州长川科技股份有限公司 | Multi-channel power supply board and semiconductor test system |
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