CN115864833B - Embedded multi-level reconfigurable switched capacitor converter - Google Patents
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- CN115864833B CN115864833B CN202211587559.XA CN202211587559A CN115864833B CN 115864833 B CN115864833 B CN 115864833B CN 202211587559 A CN202211587559 A CN 202211587559A CN 115864833 B CN115864833 B CN 115864833B
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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
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- 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
Abstract
The invention discloses an embedded multi-level reconfigurable switch capacitor converter, which is characterized in that the circuit topology structure of the embedded multi-level reconfigurable switch capacitor converter can be reconfigured, an energy transmission path is changed, 7 ladder waves with different voltage levels are output, and the embedded multi-level reconfigurable switch capacitor converter can realize both voltage boosting and voltage dropping and mainly comprises an input voltage source, eighteen power switching tubes, four energy storage capacitors, an output capacitor and an output load. Compared with the traditional power electronic converter with a single energy transmission path, the embedded multi-level reconfigurable switch capacitor converter has multiple energy transmission, has strong fault tolerance, is easy to topology while realizing multi-level output, and can obtain more voltages with different levels through an embedded multi-layer multi-level network.
Description
Technical Field
The invention relates to the technical field of voltage conversion, in particular to an embedded multi-level reconfigurable switch capacitor converter.
Background
In order to alleviate the energy crisis and environmental pollution caused by excessive consumption of traditional fossil fuels, new energy power generation systems mainly comprising solar energy, wind energy and wave energy are widely concerned, and power electronic converters play an indispensable role in the new energy power generation systems. In the distributed power generation system, the high boost converter can boost the voltage output by the new energy power generation system to the voltage level required by direct current grid connection; the resonant converter reduces power loss generated when the switching tube switches the working state by using a soft switching technology, and can realize high-efficiency electric energy transmission.
With the increasing industrial demand, new energy power generation systems are more and more complex, and the high efficiency of the power electronic converter becomes a key for electric energy conversion. However, the topology structure and the energy transmission path of the traditional power electronic converter are relatively fixed, the voltage conversion ratio is also relatively single, and only one working condition can be met, so that the efficient conversion of electric energy is difficult to realize in industrial application occasions requiring wide-range voltage output, and the power electronic converter is not suitable for systems requiring compatibility with different voltage levels.
Therefore, how to design a converter with strong fault tolerance and easy expansion, which can reconstruct a circuit topology structure to change an energy transmission path and realize multi-level output, so that a new energy power generation system can realize wide-range voltage output and is compatible with systems with different output voltage levels is a key problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an embedded multi-level reconfigurable switched capacitor converter, which can reconstruct a circuit topology structure to change an energy transmission path, output 7 different voltage classes, realize boosting and lowering, has a wider output voltage range, is compatible with systems of different output voltage classes, and solves the problem that the output voltage of the traditional converter is single due to the fixed topology structure and the energy transmission path, and includes: the power supply comprises a direct current input power supply, a first power switch tube, a second power switch tube, a third power switch tube, a fourth power switch tube, a fifth power switch tube, a sixth power switch tube, a seventh power switch tube, an eighth power switch tube, a ninth power switch tube, a tenth power switch tube, an eleventh power switch tube, a twelfth power switch tube, a thirteenth power switch tube, a fourteenth power switch tube, a fifteenth power switch tube, a sixteenth power switch tube, a seventeenth power switch tube, an eighteenth power switch tube, a first intermediate energy storage capacitor, a second intermediate energy storage capacitor, a third intermediate energy storage capacitor, a fourth intermediate energy storage capacitor, an output capacitor and an output load;
the direct current power supply V in Positive electrode of (a) and first power switch tube S 1 A first end of a second power switch tube S 2 Is connected to the first end of the housing;
the direct current power supply V in Anode of (c) and eighteenth power switch tube S 18 Second terminal of (2), output capacitance C O Second end of (2), output load R O Is connected with the second end of the first connecting piece;
the first power switch tube S 1 Is a second end of (2)And a first intermediate energy storage capacitor C 1 A first end, a third power switch tube S 3 A first end, a fourth power switch tube S 4 Is connected with the second end of the first connecting piece;
s of the second power switch tube 2 And a first intermediate energy storage capacitor C 1 Second end of fifth power switch tube S 5 Second end of (a) eighth power switch tube S 8 A second end of the fifteenth power switch tube S 15 Is connected to the first end of the housing;
the fifteenth power switch tube S 15 Is connected with the sixteenth power switch tube S 16 A second end, a fourth intermediate energy storage capacitor C 4 A second end of seventeenth power switching tube S 17 A second end of the eighteenth power switch tube S 18 Is connected to the first end of the housing;
the fifth power switch tube S 5 First and third power switch tube S 3 Second end of (a) sixth power switch tube S 6 A first end, a seventh power switch tube S 7 Is connected with the second end of the first connecting piece;
the sixth power switch tube S 6 And a second intermediate energy storage capacitor C 2 Is connected to the first end of the housing;
the eighth power switch tube S 8 A first end and a second intermediate energy storage capacitor C 2 A second end of the ninth power switch tube S 9 A second end of the twelfth power switch tube S 12 Is connected to the first end of the housing;
the twelfth power switch tube S 12 And a third intermediate energy storage capacitor C 3 A second end of the fourteenth power switch tube S 14 Sixteenth power switching tube S 16 Is connected to the first end of the housing;
the third intermediate energy storage capacitor C 3 First end of (d) and thirteenth power switch tube S 13 Is connected to the first end of the housing;
the ninth power switch tube S 9 First and seventh power switch tube S 7 A tenth power switching tube S 10 Second end of thirteenth power switch tubeS 13 Is connected with the second end of the first connecting piece;
the tenth power switch tube S 10 First and fourth power switch tubes S 4 First end of eleventh power switch tube S 11 A second end of the fourteenth power switch tube S 14 A second end, a fourth intermediate energy storage capacitor C 4 Is connected to the first end of the housing;
the eleventh power switch tube S 11 A first end of the seventeenth power switch tube S 17 First end of (C) output capacitance (C) O Is connected with the first end of the output load R O Is connected to the first end of the housing.
From the above technical solution, the embodiment of the present invention has the following benefits:
compared with the traditional power electronic converter with single voltage conversion ratio, the converter changes the energy transmission path by reconstructing the circuit topology structure, outputs 7 different levels, can realize voltage boosting and voltage reducing, has a wider voltage output range and has stronger fault tolerance capability. Based on the circuit topology structure, more ladder waves with different output voltage levels are realized through an embedded multilayer multi-level network.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the following brief description of the drawings used in the prior art and the embodiments is given, the following drawings being only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic circuit structure and topology of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention;
fig. 2 to 8 are schematic diagrams illustrating a main operation mode of an embedded multi-level reconfigurable switched capacitor converter in a switching cycle according to an embodiment of the present invention, wherein:
fig. 2 is a schematic diagram of a topology of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention in the case of operation mode 1;
FIG. 3 is a schematic diagram of a topology of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention in the case of operation mode 2;
FIG. 4 is a schematic diagram of a topology of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention in the case of operation mode 3;
FIG. 5 is a schematic diagram of a topology of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention in the case of operation mode 6;
FIG. 6 is a schematic diagram of a topology of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention in the case of operation mode 7;
FIG. 7 is a schematic diagram of a topology of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention in the case of operation mode 8;
FIG. 8 is a schematic diagram of a topology of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention in the case of operation mode 9;
FIG. 9 is a schematic diagram illustrating the operation of each power switch of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention;
FIG. 10 is a graph showing waveforms of output voltages of an embedded multi-level reconfigurable switched capacitor converter in various operating modes according to one embodiment of the present invention;
FIG. 11 is a schematic diagram of an embedded multi-level network of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention;
fig. 12 is a circuit structure and a topology diagram of an embedded n-layer multi-level network of an embedded multi-level reconfigurable switched capacitor converter according to an embodiment of the present invention.
Wherein: v (V) in Is a direct current input power supply S 1 Is a first power switch tube、S 2 Is a second power switch tube S 3 Is a third power switch tube S 4 Is a fourth power switch tube S 5 Is a fifth power switch tube S 6 Is a sixth power switch tube S 7 Is a seventh power switch tube S 8 Is an eighth power switch tube, S 9 Is a ninth power switch tube S 10 Is a tenth power switch tube S 11 Is an eleventh power switch tube, S 12 Is a twelfth power switch tube S 13 Is a thirteenth power switch tube, S 14 Is a fourteenth power switch tube, S 15 Is a fifteenth power switch tube, S 16 Is a sixteenth power switch tube, S 17 Seventeenth power switch tube, S 18 Is an eighteenth power switch tube, C 1 Is a first intermediate energy storage capacitor C 2 Is a second intermediate energy storage capacitor C 3 Is a third intermediate energy storage capacitor C 4 Is a fourth intermediate energy storage capacitor C O For outputting capacitance, R O For outputting the load.
Since the modes of operation 4, 5 of the converter are identical to modes of operation 2, 1; the operating modes 10, 11 are identical to the operating modes 8, 7; the operation mode 12 is the same as the operation mode 6 and will not be repeated in the drawing part of the specification.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is if there is a transfer of electric signals or data between objects to be connected. It should be understood as "electrically connected," "communicatively connected," etc.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
In one embodiment of the present invention, as shown in fig. 1, there is provided an embedded multi-level reconfigurable switched capacitor converter, comprising: DC input power V in First power switch tube S 1 Second power switch tube S 2 Third power switch tube S 3 Fourth power switching tube S 4 Fifth power switch tube S 5 Sixth power switching tube S 6 Seventh Power switch tube S 7 Eighth power switch tube S 8 Ninth power switch tube S 9 Tenth power switching tube S 10 Eleventh power switch tube S 11 Twelfth power switching tube S 12 Thirteenth power switch tube S 13 Fourteenth power switching tube S 14 Fifteenth power switching tube S 15 Sixteenth power switch tube S 16 Seventeenth power switching tube S 17 Eighteenth power switch tube S 18 First intermediate energy storage electricCapacitor C 1 A second intermediate energy storage capacitor C 2 A third intermediate energy storage capacitor C 3 Fourth intermediate energy storage capacitor C 4 Output capacitance C O Output load R O 。
The direct current power supply V in Positive electrode of (a) and first power switch tube S 1 A first end of a second power switch tube S 2 Is connected to the first end of the housing;
the direct current power supply V in Anode of (c) and eighteenth power switch tube S 18 Second terminal of (2), output capacitance C O Second end of (2), output load R O Is connected with the second end of the first connecting piece;
the first power switch tube S 1 And a first intermediate energy storage capacitor C 1 A first end, a third power switch tube S 3 A first end, a fourth power switch tube S 4 Is connected with the second end of the first connecting piece;
s of the second power switch tube 2 And a first intermediate energy storage capacitor C 1 Second end of fifth power switch tube S 5 Second end of (a) eighth power switch tube S 8 A second end of the fifteenth power switch tube S 15 Is connected to the first end of the housing;
the fifteenth power switch tube S 15 Is connected with the sixteenth power switch tube S 16 A second end, a fourth intermediate energy storage capacitor C 4 A second end of seventeenth power switching tube S 17 A second end of the eighteenth power switch tube S 18 Is connected to the first end of the housing;
the fifth power switch tube S 5 First and third power switch tube S 3 Second end of (a) sixth power switch tube S 6 A first end, a seventh power switch tube S 7 Is connected with the second end of the first connecting piece;
the sixth power switch tube S 6 And a second intermediate energy storage capacitor C 2 Is connected to the first end of the housing;
the eighth power switch tube S 8 A first end and a second intermediate energy storage capacitor C 2 A second end of the ninth power switch tube S 9 Is a second end of (2)Twelfth power switching tube S 12 Is connected to the first end of the housing;
the twelfth power switch tube S 12 And a third intermediate energy storage capacitor C 3 A second end of the fourteenth power switch tube S 14 Sixteenth power switching tube S 16 Is connected to the first end of the housing;
the third intermediate energy storage capacitor C 3 First end of (d) and thirteenth power switch tube S 13 Is connected to the first end of the housing;
the ninth power switch tube S 9 First and seventh power switch tube S 7 A tenth power switching tube S 10 Second terminal of thirteenth power switch tube S 13 Is connected with the second end of the first connecting piece;
the tenth power switch tube S 10 First and fourth power switch tubes S 4 First end of eleventh power switch tube S 11 A second end of the fourteenth power switch tube S 14 A second end, a fourth intermediate energy storage capacitor C 4 Is connected to the first end of the housing;
the eleventh power switch tube S 11 A first end of the seventeenth power switch tube S 17 First end of (C) output capacitance (C) O Is connected with the first end of the output load R O Is connected to the first end of the housing.
It should be noted that, in the embodiment of the present invention, an embedded multi-level reconfigurable switched capacitor converter is divided into 12 working modes according to the on and off states of a power switching tube, refer to fig. 2 to 8 specifically, wherein the working modes 4 and 5 of the converter are the same as the working modes 2 and 1; the operating modes 10, 11 are identical to the operating modes 8, 7; the operation mode 12 is the same as the operation mode 6, and thus a description thereof will not be repeated. The working principle of the embedded multi-level reconfigurable switched capacitor converter in the embodiment of the invention can be described as follows:
a schematic diagram of the operation mode 1 is shown in fig. 2:
first power switch tube S 1 Third power switch tube S 3 Fourth power switching tube S 4 Sixth power switching tube S 6 Seventh Power switch tube S 7 Eleventh power switch tube S 11 Twelfth power switching tube S 12 Thirteenth power switch tube S 13 Fifteenth power switching tube S 15 Sixteenth power switch tube S 16 Eighteenth power switch tube S 18 Conduction, direct current input power V in Respectively to the first intermediate energy storage capacitor C 1 A second intermediate energy storage capacitor C 2 A third intermediate energy storage capacitor C 3 Fourth intermediate energy storage capacitor C 4 Output capacitance C O Output load R O Providing energy, i.e. V O ＝V C1 ＝V C2 ＝V C3 ＝V C4 ＝V in 。
A schematic diagram of the operation mode 2 is shown in fig. 3:
second power switch tube S 2 Fourth power switching tube S 4 Sixth power switching tube S 6 Seventh Power switch tube S 7 Eighth power switch tube S 8 Tenth power switching tube S 10 Eleventh power switch tube S 11 Twelfth power switching tube S 12 Thirteenth power switch tube S 13 Fifteenth power switching tube S 15 Conduction, first intermediate energy storage capacitor C 1 A second intermediate energy storage capacitor C 2 A third intermediate energy storage capacitor C 3 Fourth intermediate energy storage capacitor C 4 Parallel with DC input power V in Connected in series and directed to output capacitor C O Output load R O Providing energy, i.e. V O ＝2V in 。
A schematic diagram of the operation mode 3 is shown in fig. 4:
second power switch tube S 2 Third power switch tube S 3 Seventh Power switch tube S 7 Ninth power switch tube S 9 Eleventh power switch tube S 11 Twelfth power switching tube S 12 Sixteenth power switch tube S 16 Conduction, direct current input power V in And a first intermediate energy storage capacitor C 1 Fourth intermediate energy storage capacitor C 4 Are connected in series and are connected to an output capacitor C O Output load R O Providing energy, i.e. V O ＝3V in 。
The schematic diagrams of the working modes 4 and 5 are shown in fig. 3 and 2, respectively, and the output voltages are V O ＝2V in 、V O ＝V in The operation principle is the same as that of the operation modes 2 and 1, respectively, and thus a description thereof will not be repeated here.
A schematic diagram of the operation mode 6 is shown in fig. 5:
first power switch tube S 1 Fifth power switch tube S 5 Sixth power switching tube S 6 Tenth power switching tube S 10 Eleventh power switch tube S 11 Twelfth power switching tube S 12 Thirteenth power switch tube S 13 Sixteenth power switch tube S 16 Conduction, direct current input power V in Respectively to the first intermediate energy storage capacitor C 1 And a second intermediate energy storage capacitor C 2 Providing energy, a third intermediate energy storage capacitor C 3 And a fourth intermediate energy storage capacitor C 4 In parallel, in a state of releasing energy, i.e. V O ＝0。
A schematic diagram of the operation mode 7 is shown in fig. 6:
first power switch tube S 1 Third power switch tube S 3 Sixth power switching tube S 6 Eighth power switch tube S 8 Ninth power switch tube S 9 Tenth power switching tube S 10 Thirteenth power switch tube S 13 Sixteenth power switch tube S 16 Seventeenth power switching tube S 17 Conduction, first intermediate energy storage capacitor C 1 And a second intermediate energy storage capacitor C 2 In parallel, in a state of storing energy, a third intermediate energy storage capacitor C 3 And a fourth intermediate energy storage capacitor C 4 In parallel, in a state of storing energy, i.e. V O ＝-V in 。
A schematic diagram of the operation mode 8 is shown in fig. 7:
first power switch tube S 1 Fifth power switch tube S 5 Sixth power switching tube S 6 Ninth power switch tube S 9 Tenth power switching tube S 10 Thirteenth power switch tube S 13 Sixteenth power switch tube S 16 Seventeenth power switching tube S 17 Conduction and third intermediate energy storage capacitor C 3 And a fourth intermediate energy storage capacitor C 4 In parallel with the DC input power V in First intermediate energy storage capacitor C 1 A second intermediate energy storage capacitor C 2 In series, i.e. V O ＝-2V in 。
A schematic diagram of the operation mode 9 is shown in fig. 8:
first power switch tube S 1 Fifth power switch tube S 5 Sixth power switching tube S 6 Ninth power switch tube S 9 Thirteenth power switch tube S 13 Fourteenth power switching tube S 14 Seventeenth power switching tube S 17 Conduction, direct current input power V in And a first intermediate energy storage capacitor C 1 A second intermediate energy storage capacitor C 2 A third intermediate energy storage capacitor C 3 Fourth intermediate energy storage capacitor C 4 In series, i.e. V O ＝-3V in 。
The schematic diagrams of the working modes 10, 11 and 12 are shown in fig. 7, 6 and 5, respectively, and the output voltages are V O ＝-2V in 、V O ＝-V in 、V O The operation principle is the same as that of the operation modes 8, 7 and 6, respectively, and thus the description thereof will not be repeated here.
When the operation mode 12 is finished, one switching cycle of the embedded multi-level reconfigurable switched capacitor converter is finished, and the cycle is started to the next switching cycle.
As shown in fig. 10, the embedded multi-level reconfigurable switched capacitor converter can output 7 ladder waves with different voltage levels through different energy transmission paths.
As shown in fig. 12, the reconfigurable switched capacitor converter embedded with n layers of multi-level network as shown in fig. 11 can output (7+4n) ladder waves with different voltage levels.
Claims (5)
1. An embedded multi-level reconfigurable switched capacitor converter, comprising: DC input power V in First power switch tube S 1 Second power switch tube S 2 Third power switch tube S 3 Fourth power switching tube S 4 Fifth power switch tube S 5 Sixth power switching tube S 6 Seventh Power switch tube S 7 Eighth power switch tube S 8 Ninth power switch tube S 9 Tenth power switching tube S 10 Eleventh power switch tube S 11 Twelfth power switching tube S 12 Thirteenth power switch tube S 13 Fourteenth power switching tube S 14 Fifteenth power switching tube S 15 Sixteenth power switch tube S 16 Seventeenth power switching tube S 17 Eighteenth power switch tube S 18 First intermediate energy storage capacitor C 1 A second intermediate energy storage capacitor C 2 A third intermediate energy storage capacitor C 3 Fourth intermediate energy storage capacitor C 4 Output capacitance C O Output load R O ；
The direct current input power supply V in Positive electrode of (a) and first power switch tube S 1 A first end of a second power switch tube S 2 Is connected to the first end of the housing;
the direct current input power supply V in Anode of (c) and eighteenth power switch tube S 18 Second terminal of (2), output capacitance C O Second end of (2), output load R O Is connected with the second end of the first connecting piece;
the first power switch tube S 1 And a first intermediate energy storage capacitor C 1 A first end, a third power switch tube S 3 A first end, a fourth power switch tube S 4 Is connected with the second end of the first connecting piece;
the second power switch tube S 2 And a first intermediate energy storage capacitor C 1 Second end of fifth power switch tube S 5 Second end of (a) eighth power switch tube S 8 A second end of the fifteenth power switch tube S 15 Is connected to the first end of the housing;
the fifteenth power switch tube S 15 Is connected with the sixteenth power switch tube S 16 A second end, a fourth intermediate energy storage capacitor C 4 A second end of seventeenth power switching tube S 17 A second end of the eighteenth power switch tube S 18 Is connected to the first end of the housing;
the fifth power switch tube S 5 First and third power switch tube S 3 Second end of (a) sixth power switch tube S 6 A first end, a seventh power switch tube S 7 Is connected with the second end of the first connecting piece;
the sixth power switch tube S 6 And a second intermediate energy storage capacitor C 2 Is connected to the first end of the housing;
the eighth power switch tube S 8 A first end and a second intermediate energy storage capacitor C 2 A second end of the ninth power switch tube S 9 A second end of the twelfth power switch tube S 12 Is connected to the first end of the housing;
the twelfth power switch tube S 12 And a third intermediate energy storage capacitor C 3 A second end of the fourteenth power switch tube S 14 Sixteenth power switching tube S 16 Is connected to the first end of the housing;
the third intermediate energy storage capacitor C 3 First end of (d) and thirteenth power switch tube S 13 Is connected to the first end of the housing;
the ninth power switch tube S 9 First and seventh power switch tube S 7 A tenth power switching tube S 10 Second terminal of thirteenth power switch tube S 13 Is connected with the second end of the first connecting piece;
the tenth power switch tube S 10 First and fourth power switch tubes S 4 First end of eleventh power switch tube S 11 A second end of the fourteenth power switch tube S 14 A second end, a fourth intermediate energy storage capacitor C 4 Is connected to the first end of the housing;
the eleventh power switch tube S 11 A first end of the seventeenth power switch tube S 17 First end of (C) output capacitance (C) O Is connected with the first end of the output load R O Is connected to the first end of the housing.
2. An embedded multi-level reconfigurable switched capacitor converter according to claim 1 wherein 7 different levels are output, each 3V in 、2V in 、V in 、0、-V in 、-2V in 、-3V in 。
3. An embedded multi-level reconfigurable switched capacitor converter according to claim 1, wherein an embedded multi-level network is formed by the third power switching transistor S 3 Fifth power switch tube S 5 Sixth power switching tube S 6 Seventh Power switch tube S 7 Eighth power switch tube S 8 Tenth power switching tube S 10 Twelfth power switching tube S 12 Thirteenth power switch tube S 13 Fourteenth power switching tube S 14 Sixteenth power switch tube S 16 A second intermediate energy storage capacitor C 2 A third intermediate energy storage capacitor C 3 Composition is prepared.
4. An embedded multi-level reconfigurable switched capacitor converter according to claim 1, wherein the embedded multi-level network enables more level outputs; each embedded multi-level network, the embedded multi-level reconfigurable switched capacitor conversion can be added with 4 different output levels.
5. An embedded multi-level reconfigurable switched capacitor converter according to claim 1 wherein the fault tolerance is high and the level of the required output is not limited to a fixed energy transmission path.
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| CN111740624A (en) * | 2020-05-30 | 2020-10-02 | 郑州大学 | High-gain multi-level DC/AC (direct current/alternating current) conversion topology and method |
| CN213754352U (en) * | 2020-11-13 | 2021-07-20 | 珠海格力电器股份有限公司 | Hybrid multilevel inverter topology circuit and inverter |
| CN112564529A (en) * | 2020-12-09 | 2021-03-26 | 广东工业大学 | Boost seven-level inverter |
| CN115149831A (en) * | 2022-08-09 | 2022-10-04 | 南京理工大学 | Common-ground type switched capacitor multi-level inverter |
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