CN104967309A - Series-input voltage equalization control method of independent-output direct current converter - Google Patents
Series-input voltage equalization control method of independent-output direct current converter Download PDFInfo
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Abstract
The invention relates to a series-input voltage equalization control method of an independent-output direct current converter and belongs to the high-frequency switching converter direction technical field. The objective of the invention is to solve the problem of adverse effects caused by unequal voltage in the input of an existing input-series and output-independent direct current converter system. The method of the invention is suitable for controlling constant voltage output or constant current output of an input-series and output-independent (ISOI) combined converter system; N modules exist in the system, wherein N is a positive integer larger than 1, and the first module is a master module, and the rest modules are slave modules; feedback control is performed on the output voltage or output current of the master module, so that constant voltage output or constant current output of the master module can be realized; and the equal division of the input voltage of the system can be ensured through controlling the input voltage of the slave modules, and at the same time, the output voltage or current of the slave modules can be consistent with that of the main module.
Description
Technical field
The invention belongs to high frequency switching converter device direction technical field.
Background technology
Electric energy is the most important energy form of current era, and the suitable electric energy supply through conversion is social production, smooth precondition of living.In the electric and electronic technical field of research transformation of electrical energy, switch converters is paid close attention to its high efficiency advantage, and be the emphasis of research, switch converters has penetrated into the every field of productive life, applies very extensive always.Along with the progress of technology, switch converters is just towards high frequency, modularization, intellectuality, digitized future development.
In middle high input voltage (being greater than 1kV) occasion, the subject matter that DC converter faces is that the voltage stress of switching device is higher, withstand voltage higher switching device must be selected, but selectable withstand voltage high switching device is less, and the performance of high tension apparatus is generally poor than conventional low pressure (600V ~ 1200V) device.Therefore, in middle high input voltage occasion, more employings be DC converter input series connection form, namely adopt identical modular DC converter, utilize the characteristic that it is identical, make it divide equally total input voltage, thus reduce the voltage stress of each module breaker in middle device, so just can select low tension switch device, transducer performance is improved, also comply with the modular development trend of switch converters.
The input series connection of DC converter module, its output generally adopts parallel form, there is constant voltage output characteristic, each module divides equally total current (i.e. gross output), so-called input series and output parallel that Here it is (Input Series Out Parallel-ISOP) combined converter system.Method for equalizing voltage for ISOP system adds even pressure controller in the converter, can obtain higher all pressures precision and good dynamic voltage balancing effect.The main feature of method for equalizing voltage take output voltage as control object structure Voltage loop controller, the error signal that controller provides is sent into each module and is produced pwm signal, the ring of Pressure and Control is simultaneously according to each module input voltage situation, revise the error signal obtained from voltage control loop respectively, utilize the difference of pwm signal duty ratio to control the power output adjusting each module, thus realize dividing equally input voltage.For realizing modular needs, researcher is had to propose control method voltage control and Pressure and Control are all distributed in the middle of modules, the main feature of the method is, each module is all that control object constructs respective Voltage loop controller with output voltage, simultaneously according to each module input voltage situation, revise the output voltage Setting signal of oneself respectively, utilize so-called " upwarping " characteristic (namely as input voltage is high, then increasing the voltage given signal of this module) to realize all pressing.
For ISOP system, each module needs accessory power supply to power to its control circuit, drive circuit etc., and due to each module input series connection, not publicly, therefore accessory power supply must be mutually isolated or separate.Adopt one using total input voltage as the anti exciting converter of input as accessory power supply, can carry the output voltage of more than enough road isolation, structure is comparatively simple, but can face the higher problem of voltage stress.Also can be adopted as the method for each block configuration accessory power supply, i.e. the input of each accessory power supply using module input voltage as oneself, its output is separate, and such voltage stress reduces, and also meets modular needs simultaneously.Each accessory power supply in the method, can regard the combined converter system that input series connection exports independent (InputSeries Output Independent-ISOI) as.
Obviously, ISOI system is also faced with input voltage-sharing.If accessory power supply composition ISOI system, main converter composition ISOP system, because accessory power supply power is generally much smaller than main converter, when normal work, ISOP system Pressure and Control ring can ensure that input is all pressed, now ISOI system is hardly with considering voltage-sharing, but (initially power on or zero load) when main converter no-output power, ISOI system just must add Pressure and Control, otherwise input voltage un-balance not only also can cause adverse effect even to damage to main converter to accessory power supply.Certainly, also Pressure and Control must be added for independent ISOI system.
Summary of the invention
There is the problem that voltage un-balance easily causes adverse effect in the input that the object of the invention is to export independent direct current changer system to solve existing input series connection, the invention provides a kind of independent series connection input pressure equalizing control method exporting DC converter.
The independent series connection input pressure equalizing control method exporting DC converter of the present invention, described method is applicable to the output of combined converter system constant voltage or the constant current output that control inputs series connection exports independent (Input Series Output Independent-ISOI), N number of module in described system, N be greater than 1 positive integer, arranging the 1st module is primary module, and residue module is from module; By carrying out FEEDBACK CONTROL to primary module output voltage or output current, realize primary module constant voltage to export or constant current output, by ensureing that system input voltage is divided equally to respectively carrying out control from module input voltage, be consistent from module output voltage or electric current and primary module simultaneously.
The method that the combined converter system constant voltage that control inputs series connection exports independent (Input Series Output Independent-ISOI) exports comprises:
Step one, the output voltage Setting signal u of the 1st module is set
ref;
Step 2, output voltage u to the 1st module
o1sample, voltage sample coefficient k is set
m, by voltage sample coefficient k
mwith output voltage u
o1output voltage feedback signal u is obtained after being multiplied
oc1;
Step 3, by the output voltage Setting signal u of the 1st module
refwith output voltage feedback signal u
oc1difference send into Voltage loop controller G
vo1, obtain the error signal u that Voltage loop controller exports
ea1, for generation of pulse-width signal;
Step 4, acquisition benchmark triangular carrier u
c1, u
c2... u
cN;
Step 5, by error signal u
ea1with benchmark triangular signal u
c1send into comparator, producing the signal for driving the 1st module breaker in middle pipe, making output voltage u
o1keep stable;
Step 6, to total input voltage signal u
isample, arranging voltage sample coefficient is k
s/ N, by voltage sample coefficient k
s/ N and total input voltage signal u
isignal is obtained as all input voltage Setting signal u from module after being multiplied
iref;
Step 7, input voltage u to the 2nd module
i2sample, voltage sample coefficient k is set
s, by voltage sample coefficient k
swith input voltage u
i2input voltage feedback signal u is obtained after being multiplied
oc2;
Step 8, by the input voltage Setting signal u of the 2nd module
irefwith input voltage feedback signal u
oc2difference send into grading ring controller G
vi2, obtain the error signal u that grading ring controller exports
ea2;
Step 9, by the error signal u of the 2nd module
ea2with benchmark triangular signal u
c2send into comparator, producing the signal for driving the 2nd module breaker in middle pipe, making the input voltage u of the 2nd module
i2remain total input voltage u
i1/N;
Step 10, other from module repeat step 7 to step 9, complete input and all press, constant voltage export control.
The method that control inputs series connection exports the combined converter system constant current output of independent (Input Series Output Independent-ISOI) comprises:
Step one, the output current Setting signal i of the 1st module is set
ref;
Step 2, output current i to the 1st module
o1sample, current sample coefficient k is set
m, by current sample coefficient k
mwith output current i
o1output current feedback signal i is obtained after being multiplied
oc1;
Step 3, by the output current Setting signal i of the 1st module
refwith output current feedback signal i
oc1difference send into current loop controller G
io1, obtain the error signal u that current loop controller exports
ea1, for generation of pulse-width signal;
Step 4, acquisition benchmark triangular carrier u
c1, u
c2... u
cN;
Step 5, by error signal u
ea1with benchmark triangular signal u
c1send into comparator, producing the signal for driving the 1st module breaker in middle pipe, making output current i
o1keep stable;
Step 6, to total input voltage signal u
isample, arranging voltage sample coefficient is k
s/ N, by voltage sample coefficient k
s/ N and total input voltage signal u
isignal is obtained as all input voltage Setting signal u from module after being multiplied
iref;
Step 7, input voltage u to the 2nd module
i2sample, voltage sample coefficient k is set
s, by voltage sample coefficient k
swith input voltage u
i2input voltage feedback signal u is obtained after being multiplied
oc2;
Step 8, by the input voltage Setting signal u of the 2nd module
irefwith input voltage feedback signal u
oc2difference send into grading ring controller G
vi2, obtain the error signal u that grading ring controller exports
ea2;
Step 9, by the error signal u of the 2nd module
ea2with benchmark triangular signal u
c2send into comparator, producing the signal for driving the 2nd module breaker in middle pipe, making the input voltage u of the 2nd module
i2remain total input voltage u
i1/N;
Step 10, other from module repeat step 7 to step 9, complete input and all press, the control of output constant current.
In described step 5 and step 9, producing the signal being used for driver module breaker in middle pipe is pwm signal or the pwm signal with phase shift.
Beneficial effect of the present invention is, the present invention compared with prior art, in system, primary module this module output voltage (or electric current) that only needs to sample forms voltage (or electric current) controller, only need from module this module input voltage formation even pressure controller of sampling, input can be realized and all press.This pressure equalizing control method is without the need to total Centralized Controller, and each module also without the need to the transmission of control signal, achieves and completely independently controls.This pressure equalizing control method can meet modularized design needs, and each module controller can CONTROLLER DESIGN parameter separately, and Controller gain variations is simple.
Accompanying drawing explanation
Fig. 1 exports the principle schematic of the combined converter system (being called for short ISOI system) of independent (Input Series Output Independent-ISOI) for input series connection;
Fig. 2 is the control principle schematic diagram exporting the series connection input pressure equalizing control method of DC converter independent described in embodiment one;
Fig. 3 is the control principle schematic diagram exporting the series connection input pressure equalizing control method of DC converter independent described in embodiment two.
Embodiment
Embodiment one: composition graphs 1 and Fig. 2 illustrate present embodiment, a kind of independent series connection input pressure equalizing control method exporting DC converter described in present embodiment, exports independently combined converter system, u for input series connection as shown in Figure 1
i, i
itotal input voltage and total input current respectively, u
i1~ u
iN, i
i1~ i
iN, i
o1~ i
oN, u
o1~ u
oNbe respectively each module input voltage, input current, output current and output voltage, i
c1~ i
cNbe respectively each module input derided capacitors electric current.
Present embodiment is applicable to the combined converter system constant voltage output that control inputs series connection exports independent (Input Series Output Independent-ISOI), ISOI system is exported for constant voltage, N number of module in described system, arranging the 1st module is primary module, residue module is from module, as shown in Figure 2, each module is corresponding comprises a controller; Primary module that is the 1st module adopt voltage controller, namely with the 1st module output voltage for feedback, by control action ensure the 1st module output voltage stabilization.Specific implementation is:
To output voltage u
o1sample, with the voltage sample coefficient k arranged
moutput voltage feedback signal u is obtained after being multiplied
oc1, by u
oc1the output voltage Setting signal u of signal and setting
refdifference send into Voltage loop controller G
vo1, obtain the error signal u that controller exports
ea1, utilize u
ea1signal and benchmark triangular carrier u
c1relatively, producing the pwm signal as driving, sending in the switching device of the 1st module main circuit, maintaining the 1st module output voltage stabilization.
Respectively adopt even pressure controller from module, namely using respective input voltage as feedback, be given with the 1/N of total input voltage, ensure that each module divides equally total input voltage, specific implementation is: to respective input voltage u
in(n=2,3 ... N) sample, with the voltage sample coefficient k arranged
sinput voltage feedback signal u is obtained after being multiplied
ocn, by u
ocnsignal and input voltage Setting signal u
ref=u
ik
sthe difference of/N sends into grading ring controller G
vin, obtain the error signal u that controller exports
ean, utilize u
eansignal and benchmark triangular carrier u
cnrelatively, generation, as the pwm signal driven or the pwm signal (in the topologys such as phase-shifting full-bridge) with phase shift, is sent into each from the switching device of module main circuit respectively, and final maintenance input voltage is the 1/N of total input voltage.
By numeral or analog circuit, produce benchmark triangular carrier u
c1, u
c2... u
cN;
After the system electrification of present embodiment, each controller is started working, the duty ratio of the pwm signal that each controller exports, under voltage controller effect, and output voltage u
o1keep stable, each from the even pressure controller effect of module, respectively remain total input voltage u from the input voltage of module
i1/N, namely achieve input and all press.In essence, each module is the power output by adjusting oneself, makes it identical with the 1st module power output, thus maintenance is all pressed, and therefore modules power output is identical.
The following describes the pressure equalizing control method that present embodiment proposes and be applied to the validity that constant voltage exports ISOI system.To simplify the analysis, be that the Buck race isolated form topological circuit of 1:1 is example with transformer voltage ratio, for Buck race topology, have U
o=DU
i, I
i=DI
o.Supposing the system each module main circuit is identical with control circuit parameter, and conversion efficiency is all 100%, then have u to the modules that constant voltage exports in ISOI system
on=D
nu
in, P
in=u
ini
in=P
on=u
oni
on, D
nfor the duty ratio of each module pwm signal, P
inand P
onbe respectively each module input and output power, n=1,2,3 ... N.System be in input voltage divide equally state time, have u
i1=u
i2=...=u
iNand i
i1=i
i2=...=i
iN, therefore have P
o1=P
o2=...=P
oNif, module load R
nidentical, i.e. R
1=R
2=...=R
n, then u is had
o1=u
o2=...=u
oN, namely each module exports identical power, exports identical voltage.
Respectively from module not to its respective output voltage u
oncontrol, but to be subject to output voltage u
on, power output P
onthe input voltage u of impact
inas control object, when departing from the u of requirement from module input voltage
i/ N, the duty ratio of meeting adjusting module, in fact also just have adjusted the power output P of module
on, as each module power output P
onwhen reaching unanimity, the input voltage u of each module
inalso reach unanimity, output voltage u
onalso will reach unanimity.Certain output voltage u
onthe prerequisite reached unanimity is the load R of each module
nidentical, as load R
ntime different, output voltage u
onalso there will be difference.
Because the 1st module is primary module, under Voltage loop controls, its output voltage u
o1keep stable, and other the voltage from module is
In fact, ISOI system, the load difference particularly as the ISOI system of accessory power supply in ISOP system is very little, therefore also very little from module output voltage difference.
Embodiment two: composition graphs 1 and Fig. 3 illustrate present embodiment, a kind of independent series connection input pressure equalizing control method exporting DC converter described in present embodiment, present embodiment is applicable to the combined converter system constant current output that control inputs series connection exports independent (InputSeries Output Independent-ISOI), for constant current output ISOI system, N number of module in described system, arranging the 1st module is primary module, residue module is from module, as shown in Figure 3, each module relative set separate controller; Primary module i.e. the 1st module adopts current controller, using the output current of the 1st module as feedback, ensures that the 1st module output current is stablized by control action.Specific implementation is: to the 1st module output current i
o1sample, with the current sample coefficient k arranged
moutput current feedback signal i is obtained after being multiplied
oc1, by i
oc1the output current Setting signal i of signal and setting
refdifference send into current loop controller G
io1, obtain the error signal u that controller exports
ea1, utilize u
ea1signal and benchmark triangular carrier u
c1relatively, producing the pwm signal as driving, sending in the switching device of the 1st module main circuit, final the 1st module output current that maintains is stablized.
By numeral or analog circuit, produce benchmark triangular carrier u
c1, u
c2... u
cN;
For constant current output ISOI system, respectively identical with the control method exported ISOI system in constant voltage from the control method of module.
After the system electrification of present embodiment, each controller is started working, the duty ratio of the pwm signal that each controller exports, under current controller effect, and output current i
o1keep stable, each from the even pressure controller effect of module, respectively remain total input voltage u from the input voltage of module
i1/N, namely achieve input and all press.In essence, each module is the power output by adjusting oneself, makes it identical with the 1st module power output, thus maintenance is all pressed, and therefore modules power output is identical.
The following describes the validity that pressure equalizing control method that present embodiment proposes is applied to constant current output ISOI system.To simplify the analysis, be that the Buck race isolated form topological circuit of 1:1 is example with transformer voltage ratio, for Buck race topology, have U
o=DU
i, I
i=DI
o.
Supposing the system each module main circuit is identical with control circuit parameter, and conversion efficiency is all 100%, then have i to the modules in constant current output ISOI system
in=D
ni
on, P
in=u
ini
in=P
on=u
oni
on, D
nfor the duty ratio of each module pwm signal, P
inand P
onbe respectively each module input and output power, n=1,2,3 ... N.System be in input voltage divide equally state time, have u
i1=u
i2=...=u
iNand i
i1=i
i2=...=i
iN, therefore have P
o1=P
o2=...=P
oNif, module load R
nidentical, i.e. R
1=R
2=...=R
n, then i is had
o1=i
o2=...=i
oN, namely each module exports identical power, exports identical electric current.
Because the 1st module is primary module, under current loop control, its output current i
o1keep stable, and other the electric current from module is
In fact, ISOI system, the load difference particularly as the ISOI system of accessory power supply in ISOP system is very little, therefore also very little from module output voltage difference.
To sum up, present embodiment proposes a kind of series connection input pressure equalizing control method of independent output DC converter, is applicable to the independent output of series connection input (ISOI) system of constant voltage output or constant current output.Use the method, primary module only needs to sample the output voltage of this module or output current, form Voltage loop or current loop controller, and from module only need to sample this module input voltage and coordinate total input voltage, form grading ring controller, each module input voltage can be realized divide equally, simultaneously because the load difference of each module is less, from the output voltage of module or output current and primary module difference very little.The outstanding advantages of the method is: each module has respective controller, and module works alone completely, without the need to the control signal transmission of total Centralized Controller or intermodule, meets modular requirement.
The module topology of present system can be all kinds of isolated converters of normal shock, flyback, half-bridge, full-bridge etc., also can be all kinds of non-isolated converter.
Claims (4)
1. the independent series connection input pressure equalizing control method exporting DC converter, it is characterized in that, described method is applicable to the output of combined converter system constant voltage or the constant current output that control inputs series connection exports independent (Input Series Output Independent-ISOI), N number of module in described system, N be greater than 1 positive integer, arranging the 1st module is primary module, and residue module is from module; By carrying out FEEDBACK CONTROL to primary module output voltage or output current, realize primary module constant voltage to export or constant current output, by ensureing that system input voltage is divided equally to respectively carrying out control from module input voltage, be consistent from module output voltage or electric current and primary module simultaneously.
2. the independent series connection input pressure equalizing control method exporting DC converter according to claim 1, it is characterized in that, the method that the combined converter system constant voltage that control inputs series connection exports independent (Input Series Output Independent-ISOI) exports comprises:
Step one, the output voltage Setting signal u of the 1st module is set
ref;
Step 2, output voltage u to the 1st module
o1sample, voltage sample coefficient k is set
m, by voltage sample coefficient k
mwith output voltage u
o1output voltage feedback signal u is obtained after being multiplied
oc1;
Step 3, by the output voltage Setting signal u of the 1st module
refwith output voltage feedback signal u
oc1difference send into Voltage loop controller G
vo1, obtain the error signal u that Voltage loop controller exports
ea1, for generation of pulse-width signal;
Step 4, acquisition benchmark triangular carrier u
c1, u
c2... u
cN;
Step 5, by error signal u
ea1with benchmark triangular signal u
c1send into comparator, producing the signal for driving the 1st module breaker in middle pipe, making output voltage u
o1keep stable;
Step 6, to total input voltage signal u
isample, arranging voltage sample coefficient is k
s/ N, by voltage sample coefficient k
s/ N and total input voltage signal u
isignal is obtained as all input voltage Setting signal u from module after being multiplied
iref;
Step 7, input voltage u to the 2nd module
i2sample, voltage sample coefficient k is set
s, by voltage sample coefficient k
swith input voltage u
i2input voltage feedback signal u is obtained after being multiplied
oc2;
Step 8, by the input voltage Setting signal u of the 2nd module
irefwith input voltage feedback signal u
oc2difference send into grading ring controller G
vi2, obtain the error signal u that grading ring controller exports
ea2;
Step 9, by the error signal u of the 2nd module
ea2with benchmark triangular signal u
c2send into comparator, producing the signal for driving the 2nd module breaker in middle pipe, making the input voltage u of the 2nd module
i2remain total input voltage u
i1/N;
Step 10, other from module repeat step 7 to step 9, complete input and all press, constant voltage export control.
3. the independent series connection input pressure equalizing control method exporting DC converter according to claim 1, it is characterized in that, the method that control inputs series connection exports the combined converter system constant current output of independent (Input Series Output Independent-ISOI) comprises:
Step one, the output current Setting signal i of the 1st module is set
ref;
Step 2, output current i to the 1st module
o1sample, current sample coefficient k is set
m, by current sample coefficient k
mwith output current i
o1output current feedback signal i is obtained after being multiplied
oc1;
Step 3, by the output current Setting signal i of the 1st module
refwith output current feedback signal i
oc1difference send into current loop controller G
io1, obtain the error signal u that current loop controller exports
ea1, for generation of pulse-width signal;
Step 4, acquisition benchmark triangular carrier u
c1, u
c2... u
cN;
Step 5, by error signal u
ea1with benchmark triangular signal u
c1send into comparator, producing the signal for driving the 1st module breaker in middle pipe, making output current i
o1keep stable;
Step 6, to total input voltage signal u
isample, arranging voltage sample coefficient is k
s/ N, by voltage sample coefficient k
s/ N and total input voltage signal u
isignal is obtained as all input voltage Setting signal u from module after being multiplied
iref;
Step 7, input voltage u to the 2nd module
i2sample, voltage sample coefficient k is set
s, by voltage sample coefficient k
swith input voltage u
i2input voltage feedback signal u is obtained after being multiplied
oc2;
Step 8, by the input voltage Setting signal u of the 2nd module
irefwith input voltage feedback signal u
oc2difference send into grading ring controller G
vi2, obtain the error signal u that grading ring controller exports
ea2;
Step 9, by the error signal u of the 2nd module
ea2with benchmark triangular signal u
c2send into comparator, producing the signal for driving the 2nd module breaker in middle pipe, making the input voltage u of the 2nd module
i2remain total input voltage u
i1/N;
Step 10, other from module repeat step 7 to step 9, complete input and all press, the control of output constant current.
4. independence according to Claims 2 or 3 exports the series connection input pressure equalizing control method of DC converter, it is characterized in that, in described step 5 and step 9, producing the signal being used for driver module breaker in middle pipe is pwm signal or the pwm signal with phase shift.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787627A (en) * | 2017-01-12 | 2017-05-31 | 广州金升阳科技有限公司 | The pressure equalizing control method of converter interacted system and the feedback control circuit of converter |
| CN108695840A (en) * | 2018-06-01 | 2018-10-23 | 中国电力科学研究院有限公司 | A kind of DC distribution net voltage control method and system |
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| CN109861523A (en) * | 2019-03-21 | 2019-06-07 | 广州致远电子有限公司 | Pressure equalizing control method, device and the chip of constant flow module series connection output |
| CN109861537A (en) * | 2018-10-30 | 2019-06-07 | 中国船舶工业系统工程研究院 | A kind of independent flyback accessory power supply of input series connection output |
| CN112134296A (en) * | 2020-09-16 | 2020-12-25 | 西安爱科赛博电气股份有限公司 | Three-level static var generator with auxiliary voltage sharing and voltage sharing method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050275290A1 (en) * | 2004-06-09 | 2005-12-15 | Micrel, Incorporated | Elimination of recirculation current loss in load-shared switching mode power supplies |
| CN102158095A (en) * | 2011-05-24 | 2011-08-17 | 卢其威 | Full-bridge power inverter with series-input and series-output and control method thereof |
| US20120007431A1 (en) * | 2010-07-08 | 2012-01-12 | Delta Electronics Inc. | Power supply having converters with serially connected inputs and parallel connected outputs |
| CN103856061A (en) * | 2014-02-25 | 2014-06-11 | 北京理工大学 | Full-range soft switching method of input-series output-paralleled phase-shifted full-bridge convertor |
-
2015
- 2015-07-09 CN CN201510400509.XA patent/CN104967309A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050275290A1 (en) * | 2004-06-09 | 2005-12-15 | Micrel, Incorporated | Elimination of recirculation current loss in load-shared switching mode power supplies |
| US20120007431A1 (en) * | 2010-07-08 | 2012-01-12 | Delta Electronics Inc. | Power supply having converters with serially connected inputs and parallel connected outputs |
| CN102158095A (en) * | 2011-05-24 | 2011-08-17 | 卢其威 | Full-bridge power inverter with series-input and series-output and control method thereof |
| CN103856061A (en) * | 2014-02-25 | 2014-06-11 | 北京理工大学 | Full-range soft switching method of input-series output-paralleled phase-shifted full-bridge convertor |
Non-Patent Citations (2)
| Title |
|---|
| PETER J.GRBOVIC: "Master/Slave Control of Input-Series- and Output-Parallel-Connected converters: Concept for Low-Cost High-Voltage Auxiliary Power Supplies", 《IEEE TRANSACTIONS ON POWER ELECTRONICS》 * |
| 陈武等: "多变换器模块化串并联组合系统", 《电工技术学报》 * |
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