CN107231089A - A kind of bidirectional three-level H bridges non-isolated dcdc converter - Google Patents
A kind of bidirectional three-level H bridges non-isolated dcdc converter Download PDFInfo
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- CN107231089A CN107231089A CN201710372256.9A CN201710372256A CN107231089A CN 107231089 A CN107231089 A CN 107231089A CN 201710372256 A CN201710372256 A CN 201710372256A CN 107231089 A CN107231089 A CN 107231089A
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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
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of bidirectional three-level H bridges non-isolated dcdc converter.This converter is mainly used in battery detecting and Battery formation equipment, DC chopped-wave function is realized to carry out high accuracy and wide-voltage range discharge and recharge to battery, advantage becomes apparent in high input voltage (1000V or so), powerful application scenarios.By using the hardware topology of three level, switch tube voltage stress is reduced, switch type selecting is simplified, equivalent output switch frequency is improved, inductance volume and equipment volume is reduced.The present apparatus is main to be made up of two derided capacitors, two level bridge arms of diode clamp type three, and two groups of energy storage inductors and filter capacitor.By being control effectively to design Topology Switch array, output voltage, the change of electric current wide scope, and polarity continuously adjustable between positive and negative can be achieved, and maintain neutral point voltage balance.
Description
Technical field
Field is converted the present invention relates to non-isolation DC-DC, high output voltage, voltage x current wide scope is particularly suitable for use in two-way
The application places of control.
Background technology
For high output voltage, the application scenarios of voltage x current wide scope double-direction control, retrieval existing literature and product, not
There is suitable power electronics topology to meet to require.Paper《The research of multiple two-way H bridges DC/DC converters》Two level proposed are double
It can realize that wide-voltage range is exported to H bridges DC-DC converter, but be only applicable to low voltage grade occasion.Three-level topology knot
Structure may be adapted to high voltage place, but be applied at present in two-way AC/DC more, such as patent CN201510846654.0.
In view of the above-mentioned problems, through research, present applicant proposes the two-way non-isolated DC-DC converter of three level H-bridges, by H bridges
Two bridge arms replace with three level bridge arms of neutral-point-clamped formula, combine the two-fold advantage of three level and H bridges.This topological structure
The switching tube that stress levels can be selected relatively low, switching loss reduction.In addition, improving equivalent output switch frequency, reduce inductance.
The content of the invention
The application is related to a kind of bidirectional three-level H bridges non-isolated DC-DC converter, and this converter topology mainly includes electricity
Source, derided capacitors, the level bridge arm of diode clamp type three and energy storage inductor and filter capacitor.With derided capacitors come equal independent power source
Voltage, forms 1/2nd supply voltage current potentials, and bearing voltage for reduction switching tube provides primary condition.Two bridge arms and two
Group energy storage inductor, filter capacitor constitute the main loop of power circuit of H bridges.H bridges can regard two groups of BUCK-BOOST as in the course of the work
The differential concatenation composition of circuit, the level bridge arm of left side three is one group with left side filter capacitor, energy storage inductor, constitutes half-bridge circuit
H1, right side is another group of half-bridge circuit H2.
One three level bridge arm is connected in series using four switching tubes, four switching tube head and the tail, the both sides of every switching tube
One diode of inverse parallel.There is the diode of two positive series connection in addition, its negative electrode is connected between both the above switching tube, its
Anode is connected between two following switching tubes, and its connection is connected at the midpoint Z of two derided capacitors.It is middle two
Energy storage inductor is connected at the tie point of switching tube, the opposite side of energy storage inductor is connected with the positive pole of filter capacitor, filter capacitor
Negative pole is connected to the negative pole of power supply.
Operationally, there are two every time to simultaneously turn on, remaining two switching tubes do not opened bear 1/2nd electricity
Source voltage.Compared with two level blocks, the voltage drop that switching tube is born when off is half lower, so in parts selection,
The withstanding voltage value of switching tube also reduces half.P shapes are defined as when two switching tubes above three level bridge arms are simultaneously turned on
State, middle two pipes, which are simultaneously turned on, is defined as O state, and following two pipe, which is simultaneously turned on, is defined as N-state.The then main work of switching tube
Make in P and N-state, and two state complementary duties.O state is the transition state in two mutual handoff procedures of on off state.
By calculating P or N-state action time, and triangular wave carrier modulation is carried out, every switching tube can be obtained and triggered accordingly
Pulse.Circuit is operated in BUCK patterns, and derided capacitors electric current can be flowed out in O state by midpoint, when circuit is operated in BOOST
During pattern, electric current can flow into derided capacitors in O state.Outflow is extremely difficult to natural equilibrium with the electric current flowed into so that following
The voltage of derided capacitors is difficult to maintain 1/2nd supply voltage.Adjusted according to the departure of the voltage of two derided capacitors
The O state action time of whole H1, H2 bridge arm, it can control outflow and flow into the electric current dynamic equilibrium at midpoint, realize that mid-point voltage is put down
Weighing apparatus.
The innovation of the application mainly have it is following some：
1. it can realize that output voltage and electric current steadily switch between positive-negative polarity.
2. output voltage, electric current wide scope and high accuracy change can be realized.
3. the balance of voltage of equalizing capacitance midpoint potential can be realized.
Brief description of the drawings
Accompanying drawing 1 shows a kind of topological diagram of bidirectional three-level H bridges non-isolated DC-DC converter；
Accompanying drawing 2 shows electric capacity neutral-point voltage balance strategic process figure；
Accompanying drawing 3 shows voltage oscillogram of two derided capacitors after control in operation.
Embodiment
Below, the embodiment of the application will be illustrated with reference to accompanying drawing.
It is connected in parallel between power supply DC both positive and negative polarities, uses as shown in figure 1, two derided capacitors C1, C2 head and the tail are cascaded
To carry out partial pressure to power supply.H bridges are made up of two tri-level half-bridge circuits H1, H2, and H1, H2 are connected in parallel between power positive cathode.
In half-bridge circuit H1, there are four switch transistor T 1-T4 head and the tail to be cascaded, and in every pipe both sides inverse parallel
One diode D1-D4, referred to as diode clamp bit-type three-level topology.In addition, two diode D9, D10 forward directions are connected,
Negative electrode is connected between T1 and T2 switching tubes, anode is connected between T3 and T4 switching tubes, D9, D10 connection are connected to two
At derided capacitors C1 and C2 midpoint Z.Then energy storage inductor L1, L1 opposite side is connected at the tie point of T2 and T3 switching tubes
It is connected with filter capacitor C3 positive poles, C3 negative pole is connected to power supply DC negative pole.
Half-bridge circuit H2 with half-bridge circuit H1 to build mode identical.Half-bridge circuit H2 has four switch transistor T 5-
T8 head and the tail are cascaded, and in one diode D5-D8 of every pipe both sides inverse parallel, the referred to as electricity of diode clamp bit-type three
Flat topology.In addition, two diode D11, D12 forward directions are connected, negative electrode is connected between T5 and T6 switching tubes, anode is connected to T7
Between T8 switching tubes, D11, D12 connection are connected at two derided capacitors C1 and C2 midpoint Z.Then from T6 and T7
The opposite side that energy storage inductor L2, L2 are connected at the tie point of switching tube is connected with filter capacitor C4 positive poles, and C4 negative pole is connected to electricity
Source DC negative pole.
So just the Basic Topological of three level H-bridges is built intact.Below using H bridges be applied to battery charging and discharging as
Illustrate the control principle for releasing this topological structure.
Three level H-bridges are controlled, mainly realized according to preset value to battery charging and discharging and to electric capacity mid-point voltage
Balance control.For convenience of analyzing, circuit is simplified, can be two DC sources, two DC sources by H1 and H2 circuit equivalents
Negative pole is connected together, and battery is accessed between positive pole.Ideally, two DC source output voltage ranges all can be from zero to mother
Line voltage.Therefore by the cooperation of left and right lateral circuit, zero volt can be achieved to the output of any voltage value between busbar voltage, as long as
Kirchhoff's second law is met, therefore, same output voltage, two lateral circuits there can be a variety of working conditions to combine.
Anode is connected to half-bridge circuit H1, negative pole is connected to half-bridge circuit H2, i.e., is connected respectively to battery plus-negative plate
Two energy storage inductors and filter capacitor junction, H1 and H2 cooperate to battery charging and discharging.Battery is connected between two groups of circuits,
When battery positive and negative electrode is connected on H1, H2 respectively：If being charged to battery, H1 is operated in BUCK patterns, and energy is obtained from power supply
Amount flows to battery, and H2 is operated in BOOST patterns, sends the electric current reverse pumping that battery flows out back to power supply so that electric current is from anode
Flow into negative pole outflow；If battery is discharged, H1 is just operated in BOOST patterns, sends the energy that battery is released back to power supply,
H2 is operated in BUCK patterns, and the electric current that power supply flows out is sent into battery so that electric current flows into positive pole outflow from GND.Work as electricity
During the both positive and negative polarity reversal connection of pond, H1 and H2 mode of operation are in contrast.
Half-bridge circuit H1 and H2 using four switching tubes, during work, have two and simultaneously turned on every time respectively, remaining two
The switching tube do not opened bears 1/2nd supply voltages.Compared with two level blocks, the electricity that switching tube is born when off
Pressure drop is half lower, so in parts selection, the withstanding voltage value of switching tube also reduces half.Above three level bridge arms
Two switch transistor Ts 1-T2 or T5-T6 are defined as P-state when simultaneously turning on, centre two pipes T2-T3 or T6-T7 simultaneously turn on fixed
Justice is O state, and following two pipe T3-T4 or T7-T8, which are simultaneously turned on, is defined as N-state.Switching tube operates mainly in P and N-state,
And two state complementary duties.O state is the transition state in two mutual handoff procedures of on off state.By calculating P or N shapes
The action time of state, and triangular wave carrier modulation is carried out, the corresponding trigger pulse of every switching tube can be obtained.
Circuit is operated in BUCK patterns, and derided capacitors electric current can be flowed out in O state by midpoint, when circuit is operated in
During BOOST patterns, electric current can flow into derided capacitors in O state.Outflow is extremely difficult to natural equilibrium with the electric current flowed into so that
The voltage of following derided capacitors is difficult to maintain 1/2nd supply voltage.
The O state action time of H1, H2 bridge arm, controllable flow are adjusted according to the departure of the voltage of two derided capacitors
Go out and flow into the electric current dynamic equilibrium at midpoint, realize neutral point voltage balance.
For simplify control step, H2 switching tube is given into fixed duty cycle, on the premise of without midpoint control, H2
The P of bridge arm, O, N-state action time account for respectively switch periods 0.2,0.1, the O state action time of 0.7, H1 bridge arms
Closed loop regulation need to be carried out by accounting for switch periods and obtaining 0.1, P and the action time of N-state, with according to predetermined voltage or current value to electricity
Pond discharge and recharge.
In order to realize the balance control of mid-point voltage, it is necessary to H1, H2 O state action time be adjusted, during the effect of O state
Between scope be set to 0.05-0.15 times of switch periods.When charging the battery, if downside capacitance voltage is less than 1/2nd power supplys electricity
Pressure, now needs to increase H2 O state action time Δ T, reduces H1 O state action time Δ T；If downside capacitance voltage is more than
/ 2nd supply voltages, now need to reduce H2 O state action time Δ T, increase H1 O state action time Δ T, treat electricity
When holding voltage deviation value less than the deviation allowed, both sides O state action time keeps constant.H1 and H2 O during battery discharge
In contrast, in O state action time change procedure, P and N-state action time respectively become for the change of state action time
Change Δ T/2.The mid-point voltage regulation flow process is as shown in Figure 2：According to derided capacitors C1, C2 voltage swing relation, control respectively
H1 and H2 processed P, O, N-state action time.According to this principle, the Initial Voltage Value to derided capacitors is respectively 200V and 800V
Emulated, through overregulating both sides O state action time, the voltage of two derided capacitors reaches equilibrium state, explains and proposes control
The validity of method processed, the voltage change waveform of derided capacitors is as shown in Figure 3.
Claims (10)
1. a kind of bidirectional three-level H bridges non-isolated DC-DC converter, the topology of the converter includes power supply, derided capacitors, two
The level bridge arm of pole pipe clamping type three, energy storage inductor and filter capacitor, it is characterised in that：Including two derided capacitors, two
The level bridge arm of diode clamp type three, energy storage inductor and filter capacitor described in two groups；The level of diode clamp type three
Bridge arm, the energy storage inductor and filter capacitor constitute the main loop of power circuit of H bridges, and the main loop of power circuit of H bridges includes half-bridge circuit H1
With half-bridge circuit H2, the main loop of power circuit of H bridges is equivalent to the differential concatenation of two groups of BUCK-BOOST circuits in the course of the work；
The half-bridge circuit H1 and half-bridge circuit H2 are connected in parallel between the positive pole of the power supply and negative pole.
2. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to claim 1, it is characterised in that：Half-bridge electricity
Road H1 is made up of the level bridge arm of diode clamp type three in left side, energy storage inductor described in one group and filter capacitor；Half
Bridge circuit H2 is as another level bridge arm of diode clamp type three on right side, energy storage inductor and filter capacitor described in another group
Constitute.
3. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to claim 2, it is characterised in that：The electricity
The voltage in source is divided equally by the derided capacitors, forms 1/2nd supply voltage current potentials.
4. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to any one of claim 3, it is characterised in that：
Each level bridge arm of diode clamp type three includes four switching tubes of head and the tail series connection, four switching tubes of the series connection according to
Secondary is first switch pipe, second switch pipe, the 3rd switching tube and the 4th switching tube, the both sides inverse parallel one of every switching tube
Individual diode.
5. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to claim 4, it is characterised in that：Half-bridge electricity
Road H1 and H2 respectively further comprise the diodes of two positive series connection, and the negative electrodes of two diodes of the series connection is connected to described the
Between one switching tube and the second switch pipe, the anodes of two diodes of the series connection be connected to the 3rd switching tube and
Between 4th switching tube, the connection of two switching tubes of the series connection is connected to the midpoint of two derided capacitors
At Z.
6. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to claim 5, it is characterised in that：Described
Be connected to the energy storage inductor at the tie point of two switching tubes and the 3rd switching tube, the opposite side of the energy storage inductor with it is described
Filter capacitor positive pole is connected, and the negative pole of the filter capacitor is connected to the negative pole of the power supply.
7. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to claim 6, it is characterised in that：Described
One and second switch pipe be defined as P-state when simultaneously turning on, described second and the 3rd switching tube simultaneously turn on and be defined as O state,
Third and fourth switching tube, which is simultaneously turned on, is defined as N-state, and the switching tube is operated in the P and N-state, and two institutes
State complementary duty is stated, the O state is the transition state in the mutual handoff procedure of state described in two switching tubes.
8. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to claim 7, it is characterised in that：Pass through meter
Calculate the action time of the P or N-state, and carry out triangular wave carrier modulation, obtain every switching tube and trigger arteries and veins accordingly
Punching.
9. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to claim 8, it is characterised in that：When described
When half-bridge circuit H1 or H2 are operated in BUCK patterns, the derided capacitors electric current can be flowed out in O state by midpoint；When described
When half-bridge circuit H1 or H2 are operated in BOOST patterns, electric current can flow into the derided capacitors in O state.
10. a kind of bidirectional three-level H bridges non-isolated DC-DC converter according to claim 9, it is characterised in that：According to
When the departure of the voltage of two derided capacitors acts on to adjust the O state of the level bridge arm of diode clamp type three
Between, with the electric current dynamic equilibrium for controlling to flow out and flowing into midpoint, realize neutral point voltage balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372256.9A CN107231089B (en) | 2017-05-23 | 2017-05-23 | Bidirectional three-level H-bridge non-isolated DC-DC converter |
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|---|---|---|---|
| CN201710372256.9A CN107231089B (en) | 2017-05-23 | 2017-05-23 | Bidirectional three-level H-bridge non-isolated DC-DC converter |
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| CN107231089B CN107231089B (en) | 2020-04-10 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054920A (en) * | 2017-12-22 | 2018-05-18 | 厦门科华恒盛股份有限公司 | A kind of dcdc converter |
| CN108054919A (en) * | 2017-12-22 | 2018-05-18 | 厦门科华恒盛股份有限公司 | A kind of control method of dcdc converter |
| CN110031679A (en) * | 2019-03-28 | 2019-07-19 | 广东工业大学 | A kind of inner walkway technology based on forming and capacity dividing power supply |
| CN110868092A (en) * | 2019-11-28 | 2020-03-06 | 湖北嘉辰达新能源科技有限公司 | Three-level phase-shifted full-bridge high-power supply |
| CN111525815A (en) * | 2020-06-05 | 2020-08-11 | 阳光电源股份有限公司 | Bidirectional DCDC conversion circuit, energy storage converter and charge-discharge control method |
| WO2021138912A1 (en) * | 2020-01-10 | 2021-07-15 | 西门子股份公司 | Direct current-direct current converter |
| CN113131742A (en) * | 2021-03-09 | 2021-07-16 | 广州金升阳科技有限公司 | Wide voltage input four-tube Buck-Boost circuit |
| CN114070042A (en) * | 2020-08-06 | 2022-02-18 | 华为数字能源技术有限公司 | Three-level resonance DCDC converter and voltage-sharing control method |
| CN114172381A (en) * | 2022-02-11 | 2022-03-11 | 四川大学 | Capacitive energy storage type isolation DC-DC converter and control method thereof |
| CN115378276A (en) * | 2022-09-09 | 2022-11-22 | 山东大学 | Bidirectional power conversion topology, method and system for power battery test excitation power supply |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1599233A (en) * | 2004-08-20 | 2005-03-23 | 清华大学 | Variable frequency driving device of 3KV-10KV middle-high voltage multi-level three-phase AC motor |
| CN1913321A (en) * | 2006-08-09 | 2007-02-14 | 北京四方清能电气电子有限公司 | DC voltage balance control method of three-level inverter |
| CN101515763A (en) * | 2009-03-27 | 2009-08-26 | 南京航空航天大学 | Series-parallel connection output tri-level half-bridge inverter and half period hysteresis control method thereof |
| CN102957151A (en) * | 2011-08-22 | 2013-03-06 | 台达电子企业管理（上海）有限公司 | Power compensation device and power compensation method for renewable energy source system |
| CN105703621A (en) * | 2016-04-06 | 2016-06-22 | 重庆大学 | ISOP (Input-Series-Output-Parallel) three-level Buck converter and neutral point potential balance control method |
| CN106374596A (en) * | 2016-09-13 | 2017-02-01 | 华北电力大学（保定） | Non-isolation type three-phase three-level V2G charge-discharge topological structure and control method therefor |
-
2017
- 2017-05-23 CN CN201710372256.9A patent/CN107231089B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1599233A (en) * | 2004-08-20 | 2005-03-23 | 清华大学 | Variable frequency driving device of 3KV-10KV middle-high voltage multi-level three-phase AC motor |
| CN1913321A (en) * | 2006-08-09 | 2007-02-14 | 北京四方清能电气电子有限公司 | DC voltage balance control method of three-level inverter |
| CN101515763A (en) * | 2009-03-27 | 2009-08-26 | 南京航空航天大学 | Series-parallel connection output tri-level half-bridge inverter and half period hysteresis control method thereof |
| CN102957151A (en) * | 2011-08-22 | 2013-03-06 | 台达电子企业管理（上海）有限公司 | Power compensation device and power compensation method for renewable energy source system |
| CN105703621A (en) * | 2016-04-06 | 2016-06-22 | 重庆大学 | ISOP (Input-Series-Output-Parallel) three-level Buck converter and neutral point potential balance control method |
| CN106374596A (en) * | 2016-09-13 | 2017-02-01 | 华北电力大学（保定） | Non-isolation type three-phase three-level V2G charge-discharge topological structure and control method therefor |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054919A (en) * | 2017-12-22 | 2018-05-18 | 厦门科华恒盛股份有限公司 | A kind of control method of dcdc converter |
| CN108054919B (en) * | 2017-12-22 | 2019-06-14 | 科华恒盛股份有限公司 | A kind of control method of dcdc converter |
| CN108054920B (en) * | 2017-12-22 | 2020-06-02 | 科华恒盛股份有限公司 | DCDC converter |
| CN108054920A (en) * | 2017-12-22 | 2018-05-18 | 厦门科华恒盛股份有限公司 | A kind of dcdc converter |
| CN110031679A (en) * | 2019-03-28 | 2019-07-19 | 广东工业大学 | A kind of inner walkway technology based on forming and capacity dividing power supply |
| CN110868092A (en) * | 2019-11-28 | 2020-03-06 | 湖北嘉辰达新能源科技有限公司 | Three-level phase-shifted full-bridge high-power supply |
| WO2021138912A1 (en) * | 2020-01-10 | 2021-07-15 | 西门子股份公司 | Direct current-direct current converter |
| CN111525815A (en) * | 2020-06-05 | 2020-08-11 | 阳光电源股份有限公司 | Bidirectional DCDC conversion circuit, energy storage converter and charge-discharge control method |
| CN111525815B (en) * | 2020-06-05 | 2021-09-03 | 阳光电源股份有限公司 | Bidirectional DCDC conversion circuit, energy storage converter and charge-discharge control method |
| CN114070042A (en) * | 2020-08-06 | 2022-02-18 | 华为数字能源技术有限公司 | Three-level resonance DCDC converter and voltage-sharing control method |
| CN114070042B (en) * | 2020-08-06 | 2024-06-04 | 华为数字能源技术有限公司 | Three-level resonant DCDC converter and voltage equalizing control method |
| CN113131742A (en) * | 2021-03-09 | 2021-07-16 | 广州金升阳科技有限公司 | Wide voltage input four-tube Buck-Boost circuit |
| CN114172381A (en) * | 2022-02-11 | 2022-03-11 | 四川大学 | Capacitive energy storage type isolation DC-DC converter and control method thereof |
| CN115378276A (en) * | 2022-09-09 | 2022-11-22 | 山东大学 | Bidirectional power conversion topology, method and system for power battery test excitation power supply |
| WO2024050925A1 (en) * | 2022-09-09 | 2024-03-14 | 山东大学 | Bidirectional power conversion topology for power battery test excitation power supply, method and system |
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