CN105958816B - A kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter - Google Patents
A kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter Download PDFInfo
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- CN105958816B CN105958816B CN201610370587.4A CN201610370587A CN105958816B CN 105958816 B CN105958816 B CN 105958816B CN 201610370587 A CN201610370587 A CN 201610370587A CN 105958816 B CN105958816 B CN 105958816B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/0077—Plural converter units whose outputs are connected in series
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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Abstract
The present invention discloses a kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter, and main circuit topology fully combines Multiple coil coupling inductance and the characteristic of diode capacitance boost network, has following clear superiority：1) voltage gain is improved, reduces power device voltage stress；2) zero output voltage ripple is realized, significantly reduces the demand of LC wave filters；3) turn ratio of coupling inductance is reduced, reduces magnetics volume, improves power density；4) suppress switching tube shut-off due to voltage spikes, reduce switching loss, improve energy conversion efficiency；5) basic boosting unit modularized design, flexibility are strong；The present invention has broad application prospects in new energy distributed generation system.
Description
【Technical field】
The invention belongs to new energy photovoltaic, fuel cell distributed power field, it is related to high-gain DC converter technique,
Specifically a kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter.
【Background technology】
The utilization of the green energy resources such as solar energy, fuel cell, for optimizing China's energy resource structure, realize economy, ring
The sustainable development in border has important strategic importance.With traditional dc source, such as dc generator, battery characteristics not
Together, there is the characteristics of output voltage is low and Voltage Drop is obvious in photovoltaic, fuel cell, and its is minimum, ceiling voltage ratio can reach 1:
2, even more greatly, turn into one of many technical bottlenecks in grid-connected power generation system.
Typical photovoltaic, fuel cell generation are divided into two kinds of single-stage type and two-stage type.Single step arrangement inverter (DC-
AC) only one-level energy conversion is passed through, with circuit is simple, component is few, efficiency high, high reliability.However, voltage source
Type inverter can only realize reduction regulation.Usual array needs to connect to improve voltage class, and cascaded structure is due to portion
Divide cell panel to be covered by external factor such as cloud layers, cause power output heavy losses, Voltage Drop, possibly can not ensure current transformer
Input voltage any time is more than line voltage peak value, so that system cisco unity malfunction.Equally, according to multiple individual fuels
Battery series connection obtains higher output voltage, may cause whole battery pack can not normal work because of the failure of some battery pack.
Two-stage type electrification structure is made up of the voltage boosting dc converter (DC-DC) and rear class inverter (DC-AC) of prime.DC circuit
By the voltage class of relatively low cell voltage lifting to 200V, 400V even more high, battery pack is set to be operated in one wide output electricity
In the range of pressure.Rear class inverter (DC-AC) obtains the alternating current needed for grid-connected or load.Two-layer configuration can realize Interest frequency
Design and control, have broader practice prospect, cause most attention.
Basic DC converter with boost function, in theory when dutycycle is close to 1, voltage gain convergence is infinite
Greatly.However, parasitic parameter and controller performance influence in acceptor's circuit inductance loop, even if dutycycle reaches the pole close to 1
Limit state, it is also difficult to which there is higher voltage gain.Diode turns within the extremely short time, and bears relatively large electricity
Pressure, current stress, certainly will cause serious switching loss and EMI problems.In addition, high-gain application scenario, converter it is strong non-
Linear and non-minimum phase system characteristic so that dynamic property is substantially deteriorated.Therefore, high-gain DC converter technique is to realize electricity
Power electronic inverter wide input range voltage-regulation, efficient transformation of electrical energy, the most important theories basis of high power density, are new energy
One of distributed generation system crucial matter of science and technology urgently to be resolved hurrily.
Coupling inductance is substantially the transformer for having certain coefficient of coup, by the turn ratio for designing former and deputy side inductance
Realize voltage-regulation.However, the transformer action for fully relying on coupling inductance improves voltage gain, it is necessary to the of a relatively high number of turn
Than.So, volume and the loss of magnetic element can on the one hand be increased, on the other hand former and deputy side coupling is poor, can influence voltage increasing
The linearity of benefit.
Of a relatively high voltage gain is obtained using diode capacitance network, reduces the demand of magnetic original paper, in high-gain
Application scenario has obvious efficiency and power density advantage.Based on the high-gain DC converter of diode capacitance network, such as
Shown in Fig. 1.Fig. 1 (a) dexterously realizes the charged in parallel and discharged in series of two electric capacity using the unilateral conduction of diode,
Improve output voltage, (existing literature Ismail E H, AlSaffar M A, Sabzali A J, et al.A Family of
Single-Switch PWM Converters With High Step-Up Conversion Ratio[J].IEEE
Transactions on Circuits and Systems,vol.55,no.4,pp.1159-1171,May.2008).To enter
One step improves voltage gain, multiple diode capacitance fundamental voltage gains can be expanded into unit and be cascaded, main circuit such as Fig. 1
(b).Fig. 1 (a) circuits are as S=ON, the electric discharge of two Diode series, as S=OFF, two electric capacity charged in parallels.Diode capacitance
Boosting unit exports impulse type square wave direct current voltage.High-gain application scenario, output current relative value is smaller, to reduce electric current line
Ripple and output voltage ripple are, it is necessary to choose larger inductance value.Fig. 1 (b) is multiple-unit diode capacitance network high-gain DC
Converter, as S=ON, two electric capacity in unit 1 are connected to two electric capacity charging in unit 2, have voltage source characteristic
Multiple electric capacity be directly over power semiconductor device short circuit charging, discharge process, produce great dash current, add device
Part is lost.(existing literature " Hou Shiying, Chen Jianfei, Sun Tao ' the single switch boosting inverter based on Switch-Capacitor networks
Device ', electrotechnics journal, vol.28, no.10, pp.206-216, Oct.2013).
【The content of the invention】
It is an object of the invention to overcome the impulse type square-wave output voltage and dash current of diode capacitance boost network
Inherent shortcoming, with reference to the characteristic of Multiple coil coupling inductance, propose that a kind of multiple-unit diode capacitance network and coupling inductance are high
Gain DC converter.The coupling inductance pair with controlled voltage source characteristic is added in Two-port netwerk diode capacitance network input
Side winding, avoid being directly over power semiconductor device short circuit charging, discharge process between electric capacity.Each boosting unit output voltage
Complementation, zero output voltage ripple is realized, significantly reduce the demand of LC wave filters.
To reach above-mentioned purpose, the present invention is achieved using following technical scheme：
A kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter, including input power supply Vdc、
Controlled tr tube S, the coupling inductance of Multiple coil, multiple Two-port netwerk diode capacitance boosting units, LC filter circuits and output
End load RL；Wherein coupling inductance is equivalent to ideal transformer and magnetizing inductance L with fixed no-load voltage ratiomAfter parallel connection again with it is equivalent
To the leakage inductance L of primary sidekSeries connection；LC filter circuits are by filter inductance LfWith filter capacitor CfForm；Input power supply VdcPositive pole connect
Coupling inductance primary side winding positive pole, controlled tr tube S are connected on input power supply VdcNegative pole and coupling inductance primary side negative pole both ends,
Meanwhile power supply VdcNegative pole and coupling inductance primary side negative pole be connected with the first Two-port netwerk diode capacitance boosting unit input,
The winding of coupling inductance second is connected with the second Two-port netwerk diode capacitance boosting unit input, the like, coupling inductance
N-1 windings are connected with N-1 Two-port netwerk diode capacitance boosting unit input anodes, coupling inductance N windings and N bis-
Port diode capacitance boosting unit input reversed polarity is connected, and the output end of N number of Two-port netwerk diode capacitance boosting unit is suitable
Sequence, which is connected, is followed by the input of LC filter circuits, the output side joint load R of LC filter circuitsL, wherein N is positive even numbers.
Further improve of the invention is：
The basic boosting unit of diode capacitance includes the first diode Di1, the second diode Di2, the first DC capacitor
Ci1With the second DC capacitor Ci2；First DC capacitor Ci1Positive pole meet the first diode Di1Anode, the second DC capacitor Ci2
Positive pole meet the first diode Di1Negative electrode；First DC capacitor Ci1Negative pole meet the second diode Di2Anode, the second direct current
Electric capacity Ci2Negative pole meet the second diode Di2Negative electrode；First diode Di1Negative electrode and the second diode Di2Anode be two
The output end of port diode capacitance boosting unit；Wherein 1≤i≤N.
The turn ratio of each winding of coupling inductance meets n1=n2, nj:n1=n, 3≤j≤N.
Compared with prior art, the invention has the advantages that：
The present invention proposes a kind of multiple-unit diode capacitance network and the high increasing DC converter of coupling inductance, main circuit topology
Fully with reference to Multiple coil coupling inductance and the characteristic of diode capacitance boost network, there is following clear superiority：1) voltage is improved
Gain, reduce power device voltage stress；2) zero output voltage ripple is realized, significantly reduces the demand of LC wave filters；3) reduce
The turn ratio of coupling inductance, reduce magnetics volume, improve power density；4) suppress switching tube shut-off due to voltage spikes, reduce
Switching loss, improve energy conversion efficiency；5) basic boosting unit modularized design, flexibility are strong.The present invention is in new energy point
In cloth electricity generation system, have broad application prospects.
【Brief description of the drawings】
Fig. 1 is diode capacitance network high-gain DC converter；Wherein (a) is basic diode capacitance network high-gain
DC converter, (b) are multiple-unit cascade type diode capacitance network high-gain DC converter；
Fig. 2 is multiple-unit diode capacitance network and coupling inductance high-gain DC converter (N=2)；
Fig. 3 is Two-port netwerk diode capacitance boosting unit；
Fig. 4 is the high-gain DC converter based on multiple-unit diode capacitance network and Multiple coil coupling inductance；
Fig. 5 is the voltage gain and boosting dutycycle D, coupling inductance turn ratio n and basic boosting unit number N of the present invention
Between relation；
Fig. 6 is power device voltage stress and boosting dutycycle D, coupling inductance turn ratio n and the basic boosting of the present invention
Relation between number of unit N；
Fig. 7 is the simulation waveform (V of the present inventiondc=48V, vo_ref=200V, dson=0.368, RL=100 Ω)；Wherein,
(a) magnetizing inductance and leakage inductance electric current, (b) main switch S voltage and currents, (c) diode voltage and electric current, (d) electric capacity C11With
C21Voltage, voltage v before (e) output filteringPNWith output voltage vo；
Fig. 8 is the simulation waveform (V of the present inventiondc=30V, vo_ref=200V, dson=0.647, RL=100 Ω)；Wherein,
(a) magnetizing inductance and leakage inductance electric current, (b) main switch S voltage and currents, (c) diode voltage and electric current, (d) electric capacity C11With
C21Voltage, voltage v before (e) output filteringPNWith output voltage vo。
【Embodiment】
The present invention is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 3 and Fig. 4, the present invention includes input power supply Vdc, controlled tr tube S, the coupling inductance, multiple of Multiple coil
Two-port netwerk diode capacitance boosting unit, LC filter circuits and output end load RL；Wherein coupling inductance can be equivalent to have
There are the ideal transformer and magnetizing inductance L of fixed no-load voltage ratiomAfter parallel connection again with the equivalent leakage inductance L to primary sidekSeries connection；LC filter circuits
By filter inductance LfWith filter capacitor CfForm；Two-port netwerk diode capacitance boosting unit includes the first diode D11, the two or two
Pole pipe D12, the first DC capacitor C11With the second DC capacitor C12；First DC capacitor C11Positive pole meet the first diode D11's
Anode, the second DC capacitor C12Positive pole meet the first diode D11Negative electrode；First DC capacitor C11Negative pole connect the two or two pole
Pipe D12Anode, the second DC capacitor C12Negative pole meet the second diode D12Negative electrode；First diode D11Negative electrode and second
Diode D12Anode be Two-port netwerk diode capacitance boosting unit output end.Input power supply VdcPositive pole connect coupling electricity
Feel primary side winding positive pole, controlled tr tube S is connected on input power supply VdcNegative pole and coupling inductance primary side negative pole both ends, meanwhile,
Power supply VdcNegative pole be connected with coupling inductance primary side negative pole with the first Two-port netwerk diode capacitance boosting unit input, coupling electricity
Feel the second winding (vs2) be connected with the second Two-port netwerk diode capacitance boosting unit input, the like, coupling inductance N-1
Winding (vs(N-1)) be connected with N-1 Two-port netwerk diode capacitance boosting unit input anodes, coupling inductance N windings
(vsN) be connected with N Two-port netwerk diode capacitance boosting unit input reversed polarity, N number of Two-port netwerk diode capacitance boosting unit
Output end sequential series be followed by the inputs of LC filter circuits, the output termination load resistance R of LC filter circuitsL, wherein N is
Positive even numbers.
The principle of the present invention：
To simplify the analysis, it is assumed that magnetizing inductance LmSufficiently large, exciting current is continuous, leakage inductance LkMuch smaller than Lm.Based on diode
The high-gain DC converter of capacitance network and coupling inductance, as shown in Fig. 2 basic functional principle is as follows：
As S=ON, ignore leakage inductance influence, supply voltage VdcIt is added in primary side n1On winding, charged to magnetizing inductance, inductance
Electric current linearly increase and energy storage, diode D11And D12By two electric capacity C11And C12Connect and powered to outlet side.Coupling inductance n1
And n2Winding voltage relation meets：
vU1 (S=ON)≈2VC11 (3)
Wherein：n1、n2The respectively number of turn of two winding coils of coupling inductance.
n2Winding induced electromotive force vs2On just lower negative, diode D21And D22Conducting, n2Winding gives two shunt capacitance C21And C22
Charging.
As S=OFF, storage energy passes through n in coupling inductance1And n2Winding discharges to outlet side.Diode D11And D12
Conducting, power supply VdcWith n1Windings in series gives two shunt capacitance C11And C12Charging, coupling inductance n1And n2Winding voltage relation meets：
vU1 (S=OFF)=vS1 (S=OFF)=VC11 (5)
vP (S=OFF)=Vdc-VC11 (6)
n2Winding induced electromotive force vs2Under above bearing just, diode D21And D22By n2Winding and two electric capacity C21And C22Series connection
Powered to outlet side.
vU2 (S=OFF)=-vS2 (S=OFF)+2VC21 (8)
In one switch periods, magnetizing inductance LmStorage is identical with the energy of release, and both end voltage average value is zero.With reference to
And (6) (1)：
D·vP (S=ON)+(1-D)·vP (S=OFF)=0 (9)
Then：
When obtaining S=ON by (3), (4) and (10), LC wave filter input side voltages are：
When obtaining S=OFF by (5), (7), (8) and (10), LC wave filter input side voltages are：
The n when two umber of turns of coupling inductance are identical1=n2.(11) show with (12)：No matter switching tube S=ON or S=
During OFF, DC side vPNVoltage is identical and approximately constant.
Therefore, outlet side inductance LfOnly need to eliminate caused switching noise in power device commutation course, significantly subtract
Small output inductor value.
The voltage stress born during stable state, during switching tube S=OFF is electric capacity C11And C12Shunt voltage, calculated by (10)
：
Diode D21And D22End in S=OFF, device voltage stress is capacitance voltage vC21With coupling inductance n2Winding
Voltage vs2Opposite polarities in series sum, diode D11And D12End in S=ON, device voltage stress is capacitance voltage vC11.By
(4), (7) and (10) calculate：
Further to improve voltage gain, meet more high-gain application scenario demand, Multiple coil coupling inductance can be designed
(N is even number), each winding of coupling inductance connect Two-port netwerk diode capacitance boosting unit respectively, and main circuit topology is as shown in figure 4, coupling
The turn ratio for closing each winding of inductance meets n1=n2, nj:n1=n (3≤j≤N).During stable state, voltage gain expression formula is：
Wherein：N is that unit number is expanded in diode capacitor voltage gain；D is switching tube S on-state dutycycles.
Switching tube and diode voltage stress can be rewritten as：
Fig. 5 provides the voltage gain of the present invention and dutycycle, the coupling inductance number of turn when basic boosting unit number of boosting
Between relation.Fig. 6 provides the power device voltage stress of the present invention and boosting dutycycle, the coupling inductance number of turn are when boosted substantially
Relation between number of unit.
Based on MATLAB/Simulink simulating, verifyings operation principle of the present invention and theory analysis.Main circuit parameter：Vdc=30
~48V, vo_ref=200V, Lk=10uH, Lm=400uH, C11=C12=C21=C22=200uF, Lf=5uH, Cf=250uF,
RLoad=100 Ω, Ts=50us.
Fig. 7 is the simulation waveform (V of the present inventiondc=48V, vo_ref=200V, RL=100 Ω)；Including static exciter electricity
Inducing current, leakage inductance electric current, main switch S voltage and currents, diode voltage and electric current, intermediate capacitance voltage, and output filtering
Preceding voltage vPNWith output voltage vo.During stable state, dutycycle dson=0.368, intermediate capacitance voltage vC11=vC12=74.3V, vC21
=vC22=46V and output voltage vo=198V is slightly below theoretical value 76V, 48V and 200V, mainly due to transformer leakage inductance pressure
Drop and power semiconductor device pressure drop cause.The shut-off voltage of main switch S and diode is clamped, about 74.3V, actual to answer
With the MOSFET that can select low-voltage-grade.
Fig. 8 is provided under identical load operating mode, input voltage VdcDuring=30V, simulation waveform of the invention, during stable state, duty
Compare dson=0.647, simulation result is basically identical with calculated value.Obviously, high-gain DC converter proposed by the present invention,
Voltage gain is improved, avoids limit dutycycle, while reduces power device voltage stress and magnetic element demand, is improved
Energy conversion efficiency and power density.In new energy distributed generation system, have broad application prospects.
The technological thought of above content only to illustrate the invention, it is impossible to protection scope of the present invention is limited with this, it is every to press
According to technological thought proposed by the present invention, any change done on the basis of technical scheme, claims of the present invention is each fallen within
Protection domain within.
Claims (1)
1. a kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter, it is characterised in that including input
Hold power supply Vdc, controlled tr tube S, the coupling inductance of Multiple coil, multiple Two-port netwerk diode capacitance boosting units, LC filter circuits
And output end load RL；Wherein coupling inductance is equivalent to ideal transformer and magnetizing inductance L with fixed no-load voltage ratiomAfter parallel connection
Again with the equivalent leakage inductance L to primary sidekSeries connection；LC filter circuits are by filter inductance LfWith filter capacitor CfForm；Input power supply Vdc
Positive pole connect coupling inductance primary side winding positive pole, controlled tr tube S is connected on input power supply VdcNegative pole and coupling inductance primary side
Negative pole both ends, meanwhile, power supply VdcNegative pole and coupling inductance primary side negative pole and the first Two-port netwerk diode capacitance boosting unit it is defeated
Enter end to be connected, the second winding of coupling inductance (vs2) be connected with the second Two-port netwerk diode capacitance boosting unit input reversed polarity,
The like, coupling inductance N-1 windings (vs(N-1)) and N-1 Two-port netwerk diode capacitance boosting unit input anodes
It is connected, coupling inductance N windings (vsN) be connected with N Two-port netwerk diode capacitance boosting unit input reversed polarity, N number of two end
The output end sequential series of mouth diode capacitance boosting unit are followed by the input of LC filter circuits, the outlet side of LC filter circuits
Meet load RL, wherein N is positive even numbers；
The Two-port netwerk diode capacitance boosting unit includes the first diode Di1, the second diode Di2, the first DC capacitor Ci1
With the second DC capacitor Ci2；First DC capacitor Ci1Positive pole meet the first diode Di1Anode, the second DC capacitor Ci2Just
Pole meets the first diode Di1Negative electrode；First DC capacitor Ci1Negative pole meet the second diode Di2Anode, the second DC capacitor
Ci2Negative pole meet the second diode Di2Negative electrode；First diode Di1Negative electrode and the second diode Di2Anode be Two-port netwerk
The output end of diode capacitance boosting unit；Wherein 1≤i≤N；
The turn ratio of each winding of coupling inductance meets n1=n2, nj:n1=n, 3≤j≤N.
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| CN107733221B (en) * | 2017-10-30 | 2020-07-28 | 西安交通大学 | Multi-unit coupling inductance switch capacitor network high-gain direct current converter |
| CN108694270B (en) * | 2018-03-27 | 2022-03-18 | 东北电力大学 | Transformer AC/DC hybrid operation excitation state-component loss mapping method |
| CN108768169B (en) * | 2018-05-04 | 2023-08-25 | 南通科技职业学院 | Dual-coupling staggered boost converter for fuel cell and control method thereof |
| CN109462330A (en) * | 2018-11-13 | 2019-03-12 | 天津大学 | The high voltage boosting dc converter of belt switch inductance and switching capacity |
| CN109599855B (en) * | 2018-12-24 | 2022-04-29 | 华北电力大学（保定） | Cascaded direct current-to-direct current collection grid-connected topology and phase-shifting control method |
| CN111446855B (en) * | 2020-04-30 | 2023-05-02 | 三峡大学 | Boost DC-DC converter with multiple basic units |
| CN111697826B (en) * | 2020-06-02 | 2021-08-31 | 上海交通大学 | Parallel charging and serial discharging type high-power booster circuit and control method thereof |
| CN117239885B (en) * | 2023-11-16 | 2024-03-15 | 中山市宝利金电子有限公司 | Energy storage charging circuit with wide voltage range |
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| CN204068691U (en) * | 2014-07-01 | 2014-12-31 | 国家电网公司 | Based on the multi input booster converter of switched capacitor network series connection |
| JP6511248B2 (en) * | 2014-11-05 | 2019-05-15 | 三星エスディアイ株式会社ＳＡＭＳＵＮＧ ＳＤＩ Ｃｏ．， ＬＴＤ． | DC boost circuit |
| CN205123579U (en) * | 2015-11-26 | 2016-03-30 | 国网河南省电力公司平顶山供电公司 | High -gain DC -DC photovoltaic booster converter based on coupling inductance |
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