CN108964494A - It is a kind of to press five-level voltage source type conversion device and control method certainly - Google Patents
It is a kind of to press five-level voltage source type conversion device and control method certainly Download PDFInfo
- Publication number
- CN108964494A CN108964494A CN201811167927.9A CN201811167927A CN108964494A CN 108964494 A CN108964494 A CN 108964494A CN 201811167927 A CN201811167927 A CN 201811167927A CN 108964494 A CN108964494 A CN 108964494A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- power module
- voltage
- electric connecting
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims abstract description 133
- 230000005611 electricity Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 description 7
- 239000003381 stabilizer Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
A bridge arm is formed from pressure five-level voltage source type conversion device, including by the identical power module of three structures and three identical capacitors the invention discloses a kind of；The power module is divided into power module M1, power module M2 and power module M3, and there are five electric connecting points for each power module；The capacitor is divided into capacitor C1, capacitor C2 and capacitor C3；It also discloses simultaneously a kind of from pressure five-power level voltage source type conversion control method；The present invention has the characteristics that structure is simple, is not necessarily to multiple independent DC sources compared to the five LCU level conversion unit present invention of H bridge cascade connection type, while the direct series connection of switching tube being not present in circuit, there is no more Redundanter schalter state, control is more simple, and practicability is stronger, it is easier to promote and use.
Description
Technical field
The present invention relates to a kind of from five-level voltage source type conversion device and control method is pressed, and belongs to Technics of Power Electronic Conversion
Device technical field.
Background technique
In recent years, with the development in an all-round way of power electronic technique and control technology, power electronic equipment is made extensively
With requirement of the people to the high-power, high pressure resistant of power electronic equipment, low harmony wave disturbance is higher and higher.
Multilevel device has that power is big, switching frequency is low, output harmonic wave is small, rapid dynamic response speed, electromagnetism are simultaneous
The advantages that capacitive is good, and the power electronic devices reliability application that pressure voltage can be made low is in high-power field, and effectively
Reduce the higher hamonic wave that pulsewidth modulation abbreviation PWM control generates.
But since the number of diodes of well known five LCU level conversion unit of diode clamp bit-type is more, capacitor flies across type
The control of five LCU level conversion units is complicated, five LCU level conversion unit of H bridge cascade connection type needs multiple independent DC sources, active midpoint pincers
There are five LCU level conversion units such as tandem tap pipe voltage un-balance all there is inherent defect for bit-type five-level converter, it is suppressed that five electricity
The popularization and use of flat converting means in practice.
Summary of the invention
That the purpose of the present invention is to provide a kind of structures and control is simple, can be from without independent direct current sourc, switching device
The five-power level voltage source converting means and control method of pressure, to solve the problems in above-mentioned background technique.
To achieve the above object, the invention provides the following technical scheme: it is a kind of from pressure five-power level voltage source type transformation dress
It sets, it includes:
One bridge arm is formed by the identical power module of three structures and three capacitors；
The power module is divided into power module M1, power module M2 and power module M3, and each power module
There are five electric connecting points；
The capacitor is divided into capacitor C1, capacitor C2 and capacitor C3；
Wherein, the electric connecting point one, five of power module M1 is connect with capacitor C1, the electric connecting point of power module M2
One, it five is connect with capacitor C2, the electric connecting point five of power module M1 is connect with the electric connecting point one of power module M2, function
The electric connecting point one of rate module M3 is connect with the electric connecting point three of power module M1, the electric connecting point five of power module M3
It is connect with the electric connecting point three of power module M2, the electrical connection of the electric connecting point four and power module M2 of power module M1
Point two is connected respectively to the both ends of capacitor C3, output point of the electric connecting point three of power module M3 as converting means.
Each power module is by power device S1, S2, S3, S4, capacitor C, resistance R composition；Power device S1, S2,
S3, S4 are sequentially connected connect in the same direction, and then separate 5 electric connecting points one, two, three, four, five, resistance R and electric connecting point one,
Five are connected, and capacitor C is connected with electric connecting point two, four.
Described power device S1, S2, S3, S4 are insulated gate bipolar transistor, silicon carbide device, gate electrode capable of switching off crystalline substance lock
Any one of pipe, integrated gate commutated thyristor, power transistor, Power MOSFET.
The power module M1, power module M2 internal capacitance C and capacitor C3 are used for equal power inside modules derailing switch
Part both end voltage is not involved in the output of converter voltage.
The power module M1 internal resistance R has the function of the capacitor C1 electric energy of release, power module M2 internal resistance R
Have the function of that the capacitor C2 electric energy of release, power module M3 internal resistance R have the function of discharging capacitor C3 electric energy.
Power module M3 internal resistance R has the function of voltage clamping, power module M3 internal electric tie point one, five
In the current potential clamper to the same potential point of two o'clock.
It is a kind of to press five-level voltage source type conversion device control method certainly, comprising the following steps:
1) control method of power module M3 internal capacitance C both end voltage:
Voltage and the bridge arm current direction for detecting the both ends power module M3 internal capacitance C first, according to the capacitor C two of detection
The voltage value and the suitable switch state of bridge arm current direction selection at end, are charged or are discharged to capacitor C to reach, with
Realize the stability contorting to the voltage value at the both ends capacitor C；
2) power module M1, power module M2 internal capacitance C both end voltage control method:
When power module M1, M2 internal switch device S1, S2 conducting, it is equivalent to inside power module M1 after simplifying circuit
Capacitor C connect with capacitor C3 after in parallel with capacitor C1 again, the capacity of widened Up Highway UHW capacitor, at this time in power module M1
The sum of the voltage at the both ends capacitor C and capacitor C3 in portion is equal to the voltage at the both ends capacitor C1, if the electricity inside power module M1
Appearance C is equal with the voltage at the both ends capacitor C3, then meets the capacitor C both end voltage value inside power module M1 and stablize in capacitor C1
The requirement of the half of the voltage at both ends；
Similarly, when power module M1, M2 internal switch device S3, S4 are connected, power module is equivalent to after simplifying circuit
Capacitor C inside M2 is in parallel with capacitor C2 again after connecting with capacitor C3, the capacity of widened Up Highway UHW capacitor, at this time power mould
The sum of voltage of capacitor C and the both ends capacitor C3 inside block M2 is equal to the voltage at the both ends capacitor C2, if in power module M2
The voltage at the both ends capacitor C and capacitor C3 in portion is equal, then meets the capacitor C both end voltage value inside power module M2 and stablize
The requirement of the half of the voltage at the both ends capacitor C2.
The control method of three power module M1, M2, M3 internal capacitance C both end voltages is different, wherein power module M1,
The control method of M2 internal capacitance C both end voltage is identical.
Power module M1, M2 internal capacitance C and capacitor C3 have the effect of expanding bus capacitor string branch capacitance.
Fly that there is knot across five LCU level conversion unit of type compared to five LCU level conversion unit of conventional diode clamper type and capacitor
The simple feature of structure is not necessarily to multiple independent DC sources, while circuit compared to the five LCU level conversion unit present invention of H bridge cascade connection type
In be not present switching tube direct series connection, due to first capacitor string branch not as commutation branch, not more Redundanter schalter
State, control is more simple, and practicability is stronger, it is easier to promote and use.
Detailed description of the invention
Fig. 1 is topology diagram of the present invention from pressure five-level voltage source type conversion device；
Fig. 2 is the topology diagram of converting means internal power module of the present invention；
Fig. 3 is the topology diagram of the embodiment of the present invention one.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of from five-level voltage source type conversion device is pressed, it includes:
One bridge arm is formed by the identical power module of three structures and three capacitors；
The power module is divided into power module M1, power module M2 and power module M3, and each power module
There are five electric connecting points；
The capacitor is divided into capacitor C1, capacitor C2 and capacitor C3；
Wherein, the electric connecting point one, five of power module M1 is connect with capacitor C1, the electric connecting point of power module M2
One, it five is connect with capacitor C2, the electric connecting point five of power module M1 is connect with the electric connecting point one of power module M2, function
The electric connecting point one of rate module M3 is connect with the electric connecting point three of power module M1, the electric connecting point five of power module M3
It is connect with the electric connecting point three of power module M2, the electrical connection of the electric connecting point four and power module M2 of power module M1
Point two is connected respectively to the both ends of capacitor C3, output point of the electric connecting point three of power module M3 as converting means.
The tie point of power module of the Fig. 1 into Fig. 3 is indicated with Arabic numerals 1,2,3,4, is all made of in the literature
The numerical value one, two, three, four of capitalization Chinese state distinguishing；The 1.2.3 marked in Fig. 1 and Fig. 3 is to cross
Place, illustrates herein.
Capacitor C1 in Fig. 1, C2 can be that each bridge arm institute is exclusive can also be with common to multiple bridge arms, capacitor C3 be every
A bridge arm institute is exclusive.Three bridge arms of same structure can form a three phase rectifier topology, can be used for fairing, active filter
Wave, reactive compensation, three-phase imbalance compensation device.Three bridge arms of same structure can also form a three-phase inversion topological,
It can be used for photovoltaic DC-to-AC converter, vehicle-mounted inverter.It is topological back-to-back that six bridge arms of same structure can form three-phase.
Such as Fig. 2: each power module is by power device S1, S2, S3, S4, capacitor C, resistance R composition；Power device
S1, S2, S3, S4 are sequentially connected connect in the same direction, and then separate 5 electric connecting points one, two, three, four, five, resistance R and electrical connection
Point one, five is connected, and capacitor C is connected with electric connecting point two, four.
Described power device S1, S2, S3, S4 are insulated gate bipolar transistor, silicon carbide device, gate electrode capable of switching off crystalline substance lock
Any one of pipe, integrated gate commutated thyristor, power transistor, Power MOSFET.
Power module M1, M2 internal capacitance C and capacitor C3 is for equal power inside modules switching device both ends electricity
Pressure, is not involved in the output of converter voltage.
The power module M1 internal resistance R has the function of the capacitor C1 electric energy of release, power module M2 internal resistance R
Have the function of that the capacitor C2 electric energy of release, power module M3 internal resistance R have the function of discharging capacitor C3 electric energy.
The effect of power module internal resistance R is the work that release internal capacitance C electric energy is played when equipment downtime or power-off
With.Power module M3 internal resistance R also has the function of voltage clamping, and power module M3 inner attachment points one, five current potentials are clamped
On position to the same potential point.
It is a kind of to press five-level voltage source type conversion device control method certainly, comprising the following steps:
1) control method of power module M3 internal capacitance C both end voltage:
Voltage and the bridge arm current direction for detecting the both ends power module M3 internal capacitance C first, according to the capacitor C two of detection
The voltage value and the suitable switch state of bridge arm current direction selection at end, are charged or are discharged to capacitor C to reach, with
Realize the stability contorting to the voltage value at the both ends capacitor C；
2) control method of power module M1, M2 internal capacitance C both end voltage:
When power module M1, M2 internal switch device S1, S2 conducting, it is equivalent to inside power module M1 after simplifying circuit
Capacitor C connect with capacitor C3 after in parallel with capacitor C1 again, the capacity of widened Up Highway UHW capacitor, at this time in power module M1
The sum of the voltage at the both ends capacitor C and capacitor C3 in portion is equal to the voltage at the both ends capacitor C1, if the electricity inside power module M1
Appearance C is equal with the voltage at the both ends capacitor C3, then meets the capacitor C both end voltage value inside power module M1 and stablize in capacitor C1
The requirement of the half of the voltage at both ends；
Similarly, when power module M1, M2 internal switch device S3, S4 are connected, power module is equivalent to after simplifying circuit
Capacitor C inside M2 is in parallel with capacitor C2 again after connecting with capacitor C3, the capacity of widened Up Highway UHW capacitor, at this time power mould
The sum of voltage of capacitor C and the both ends capacitor C3 inside block M2 is equal to the voltage at the both ends capacitor C2, if in power module M2
The voltage at the both ends capacitor C and capacitor C3 in portion is equal, then meets the capacitor C both end voltage value inside power module M2 and stablize
The requirement of the half of the voltage at the both ends capacitor C2.
Wherein, the control method of three power module M1, M2, M3 internal capacitance C both end voltages is different, wherein power mould
The control method of block M1, M2 internal capacitance C both end voltage is identical.
Wherein, power module M1, M2 internal capacitance C and capacitor C3 have the effect for expanding bus capacitor string branch capacitance
Fruit.
Fig. 3 is the embodiment of the present invention one, in example 1, the electrical connection of power module M1, M2 in Fig. 1 structure
Point two, four and power module M1 electric connecting point four and the electric connecting point two of power module M2 between respectively one in parallel by
The pressure stabilizing branch of voltage-stabiliser tube and resistance composition；
Wherein, the electric connecting point two, four of power module M1 and pressure stabilizing branch Z1, R1 are in parallel, and power module M2's is electrical
Tie point two, four and pressure stabilizing branch Z3, R3 are in parallel, the electrical connection of the electric connecting point four and power module M2 of power module M1
Point two and pressure stabilizing branch Z2, R2 are in parallel.
The characteristics of embodiment, can be reached inside balance power module M1, M2 by the setting of voltage-stabiliser tube pressure stabilizing value
The purpose of capacitor C and capacitor C3 both end voltage, by assisting voltage regulator circuit that can fast implement power module M1, M2 internal capacitance
The equilibrium of C and capacitor C3 both end voltage so that power module M1, M2 internal switch device S1-S2, S3-S4 have it is good it is dynamic,
Steady-state pressure effect.
The voltage-stabiliser tube of each pressure stabilizing branch can be single voltage-stabiliser tube in the present embodiment, and it is real to be also possible to multiple voltage-stabiliser tube series connection
Realization or series and parallel mixing existing or in parallel are realized.
The resistance of each pressure stabilizing branch in the present embodiment can be single resistance, be also possible to the series connection of multiple resistance realize or
Parallel connection is realized or series and parallel mixing is realized.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of from pressure five-level voltage source type conversion device, which is characterized in that it includes:
One bridge arm is formed by the identical power module of three structures and three capacitors；
The power module is divided into power module M1, power module M2 and power module M3, and each power module has
Five electric connecting points；
The capacitor is divided into capacitor C1, capacitor C2 and capacitor C3；
Wherein, the electric connecting point one, five of power module M1 is connect with capacitor C1, the electric connecting point one of power module M2,
Five connect with capacitor C2, and the electric connecting point five of power module M1 is connect with the electric connecting point one of power module M2, power
The electric connecting point one of module M3 is connect with the electric connecting point three of power module M1, the electric connecting point five of power module M3 with
The electric connecting point three of power module M2 connects, the electric connecting point four of power module M1 and the electric connecting point of power module M2
Two are connected respectively to the both ends of capacitor C3, output point of the electric connecting point three of power module M3 as converting means.
2. according to claim 1 a kind of from pressure five-level voltage source type conversion device, it is characterised in that: each power
Module is by power device S1, S2, S3, S4, capacitor C, resistance R composition；Power device S1, S2, S3, S4 are sequentially connected in the same direction
It connects, and then separates 5 electric connecting points one, two, three, four, five, resistance R is connected with electric connecting point one, five, capacitor C and electrical
Tie point two, four is connected.
3. according to claim 2 a kind of from pressure five-level voltage source type conversion device, it is characterised in that: the power
Device S1, S2, S3, S4 be insulated gate bipolar transistor, silicon carbide device, gate level turn-off thyristor, integrated gate commutated
Any one of thyristor, power transistor, Power MOSFET.
4. according to claim 2 a kind of from pressure five-level voltage source type conversion device, it is characterised in that: the power
Module M1, M2 internal capacitance C and capacitor C3 is used for equal power inside modules switching device both end voltage, is not involved in converter electricity
The output of pressure.
5. according to claim 2 a kind of from pressure five-level voltage source type conversion device, it is characterised in that: the power
Module M1 internal resistance R has the function of that the capacitor C1 electric energy of release, power module M2 internal resistance R have the capacitor C2 of release
The effect of electric energy, power module M3 internal resistance R have the function of discharging capacitor C3 electric energy.
6. converting means internal power module according to claim 2, which is characterized in that power module M3 internal resistance R
Have the function of voltage clamping, power module M3 internal electric tie point one, five two o'clocks current potential clamper to the same current potential
Point on.
7. a kind of from pressure five-level voltage source type conversion device control method, which comprises the following steps:
1) control method of power module M3 internal capacitance C both end voltage:
Voltage and the bridge arm current direction for detecting the both ends power module M3 internal capacitance C first, according to the both ends capacitor C of detection
Voltage value and the suitable switch state of bridge arm current direction selection, are charged or are discharged to capacitor C to reach, to realize
To the stability contorting of the voltage value at the both ends capacitor C；
2) control method of power module M1, M2 internal capacitance C both end voltage:
When power module M1, M2 internal switch device S1, S2 conducting, electricity inside power module M1 is equivalent to after simplifying circuit
Hold in parallel with capacitor C1 again, the capacity of widened Up Highway UHW capacitor after C connects with capacitor C3, at this time inside power module M1
The sum of the voltage at capacitor C and the both ends capacitor C3 is equal to the voltage at the both ends capacitor C1, if the capacitor C inside power module M1 with
The voltage at the both ends capacitor C3 is equal, then meets the capacitor C both end voltage value inside power module M1 and stablize at the both ends capacitor C1
Voltage half requirement；
Similarly, it when power module M1, M2 internal switch device S3, S4 are connected, is equivalent in power module M2 after simplifying circuit
The capacitor C in portion is in parallel with capacitor C2 again after connecting with capacitor C3, the capacity of widened Up Highway UHW capacitor, at this time power module M2
The sum of internal voltage of capacitor C and the both ends capacitor C3 is equal to the voltage at the both ends capacitor C2, if inside power module M2
Capacitor C is equal with the voltage at the both ends capacitor C3, then meets the capacitor C both end voltage value inside power module M2 and stablize in capacitor
The requirement of the half of the voltage at the both ends C2.
8. according to claim 7 a kind of from pressure five-level voltage source type conversion device control method, which is characterized in that
The control method of three power module M1, M2, M3 internal capacitance C both end voltages is different, wherein electricity inside power module M1, M2
The control method for holding C both end voltage is identical.
9. according to claim 7 a kind of from pressure five-level voltage source type conversion device control method, which is characterized in that
Power module M1, M2 internal capacitance C and capacitor C3 have the effect of expanding bus capacitor string branch capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811167927.9A CN108964494A (en) | 2018-10-08 | 2018-10-08 | It is a kind of to press five-level voltage source type conversion device and control method certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811167927.9A CN108964494A (en) | 2018-10-08 | 2018-10-08 | It is a kind of to press five-level voltage source type conversion device and control method certainly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108964494A true CN108964494A (en) | 2018-12-07 |
Family
ID=64472849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811167927.9A Pending CN108964494A (en) | 2018-10-08 | 2018-10-08 | It is a kind of to press five-level voltage source type conversion device and control method certainly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108964494A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262180A (en) * | 2008-04-25 | 2008-09-10 | 清华大学 | Single-phase circuit topology structure for clamp multi-level converter |
| CN102664546A (en) * | 2012-05-18 | 2012-09-12 | 浙江大学 | Five-level current transformation topological structure with bi-directional power switch and applications thereof |
| CN102710244A (en) * | 2012-05-17 | 2012-10-03 | 广东电网公司电力科学研究院 | Middle-high voltage series-connection electronic switch |
| JP2012210066A (en) * | 2011-03-30 | 2012-10-25 | Meidensha Corp | Multilevel conversion apparatus |
| CN203103966U (en) * | 2012-12-26 | 2013-07-31 | 江苏博纬新能源科技有限公司 | High-voltage dynamic reactive power compensation device |
| CN103595281A (en) * | 2013-10-09 | 2014-02-19 | 徐州中矿大传动与自动化有限公司 | Five-level voltage source type conversion device |
| CN107070276A (en) * | 2017-04-20 | 2017-08-18 | 上海交通大学 | Active neutral point clamp Five-level converter DC side charging soft starting circuit and method |
| CN107070274A (en) * | 2016-12-16 | 2017-08-18 | 中冶赛迪电气技术有限公司 | A kind of five level inverse conversion units |
| CN208986844U (en) * | 2018-10-08 | 2019-06-14 | 江苏师范大学 | It is a kind of to press five-level voltage source type conversion device certainly |
-
2018
- 2018-10-08 CN CN201811167927.9A patent/CN108964494A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262180A (en) * | 2008-04-25 | 2008-09-10 | 清华大学 | Single-phase circuit topology structure for clamp multi-level converter |
| JP2012210066A (en) * | 2011-03-30 | 2012-10-25 | Meidensha Corp | Multilevel conversion apparatus |
| CN102710244A (en) * | 2012-05-17 | 2012-10-03 | 广东电网公司电力科学研究院 | Middle-high voltage series-connection electronic switch |
| CN102664546A (en) * | 2012-05-18 | 2012-09-12 | 浙江大学 | Five-level current transformation topological structure with bi-directional power switch and applications thereof |
| CN203103966U (en) * | 2012-12-26 | 2013-07-31 | 江苏博纬新能源科技有限公司 | High-voltage dynamic reactive power compensation device |
| CN103595281A (en) * | 2013-10-09 | 2014-02-19 | 徐州中矿大传动与自动化有限公司 | Five-level voltage source type conversion device |
| CN107070274A (en) * | 2016-12-16 | 2017-08-18 | 中冶赛迪电气技术有限公司 | A kind of five level inverse conversion units |
| CN107070276A (en) * | 2017-04-20 | 2017-08-18 | 上海交通大学 | Active neutral point clamp Five-level converter DC side charging soft starting circuit and method |
| CN208986844U (en) * | 2018-10-08 | 2019-06-14 | 江苏师范大学 | It is a kind of to press five-level voltage source type conversion device certainly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5928928B2 (en) | 5-stage power converter, control method and control apparatus therefor | |
| US20130301314A1 (en) | Multilevel Inverter Device and Method | |
| CN102594187B (en) | Four-level topological unit and application circuit thereof | |
| Dhara et al. | A transformerless 1-φ, 5-level half-bridge PV inverter configuration based on switched-capacitor technique | |
| CN107210684A (en) | Five level topology units and five-electrical level inverter | |
| WO2012041020A1 (en) | Single-phase five-level power converter | |
| Liu et al. | A modified single-phase transformerless Y-source PV grid-connected inverter | |
| CN108023494B (en) | Modular multilevel converter and submodule structure thereof | |
| CN103595281A (en) | Five-level voltage source type conversion device | |
| CN102969881B (en) | A kind of voltage equalizing protection circuit and diode clamp many level topology apparatus | |
| CN102594185B (en) | Four-level topology unit and application circuit thereof | |
| CN103956927A (en) | Voltage-active-clamping non-transformer-type single-phase photovoltaic inverter | |
| CN109067226A (en) | Five lever boosting type inverters of one kind and its control method | |
| CN108141147A (en) | The five-electrical level inverter topological circuit of high voltage gain | |
| CN203491923U (en) | Five-level voltage source converter | |
| CN105897004B (en) | A kind of electric power electric transformer topological structure of more level DC bus self-balancings | |
| CN104065293A (en) | Transformer-free type single-phase photovoltaic inverter with mixed voltage clamping | |
| CN102594188B (en) | Four-level topological unit and application circuit of four-level topological unit | |
| CN208986844U (en) | It is a kind of to press five-level voltage source type conversion device certainly | |
| CN103944433A (en) | Three-phase three-level inverter circuit and uninterruptible power supply | |
| JPH09322546A (en) | Ac current source circuit | |
| CN109873570A (en) | Three level T font topological structures of one kind and single-phase inverter and three-phase inverter | |
| CN104410309B (en) | Five-level voltage source type conversion device | |
| CN108964494A (en) | It is a kind of to press five-level voltage source type conversion device and control method certainly | |
| CN106998138B (en) | Bidirectional DC-DC converter without Pressure and Control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |