CN114301279B - Switch modulation method and device of boost converter - Google Patents
Switch modulation method and device of boost converter Download PDFInfo
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- CN114301279B CN114301279B CN202111547756.4A CN202111547756A CN114301279B CN 114301279 B CN114301279 B CN 114301279B CN 202111547756 A CN202111547756 A CN 202111547756A CN 114301279 B CN114301279 B CN 114301279B
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Abstract
The application provides a switch modulation method and device of a boost converter, a storage medium and electronic equipment. The method comprises the steps of determining charge and discharge state information of a boost converter, wherein the charge and discharge state information at least comprises: a first charge-discharge state of the target phase main circuit, a second charge-discharge state of the slave circuit corresponding to the target phase main circuit, a third charge-discharge state of the other main circuits except the target phase main circuit, and a fourth charge-discharge state of the other slave circuits; and adjusting the states of the switches arranged on the other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state. The technical effect of improving the working efficiency of the boost converter is achieved by simultaneously controlling the charging and discharging of the plurality of inductors.
Description
Technical Field
The invention relates to the field of converter control, in particular to a switch modulation method and device of a boost converter, a storage medium and electronic equipment.
Background
The switch modulation method of the prior art is mainly applied to a traditional two-phase interleaved parallel boost converter, a single-phase stacked interleaved boost converter and the like, and as shown in fig. 1 and 2, the charging state or the discharging state of an inductor is respectively controlled through each switch.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a switch modulation method and device of a boost converter, a storage medium and electronic equipment, which at least solve the problem of low working efficiency of the converter caused by the fact that the existing switch modulation method of the staggered boost converter needs to gradually analyze charging and discharging of a plurality of inductors.
According to an aspect of an embodiment of the present invention, there is provided a switch modulation method of a boost converter, the method being applied to a multiphase stacked interleaved boost converter, the boost converter including a first number of main loops, slave loops, and bridge arms, wherein each of the bridge arms is provided with a second number of switches, including: determining charge and discharge state information of the boost converter, wherein the charge and discharge state information at least comprises: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the states of the switches arranged on the bridge arms connected with the target phase main loop based on the first charge-discharge state, and adjusting the states of the switches arranged on the other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state.
Further, determining charge-discharge state information of the boost converter includes: determining that the first charge-discharge state is opposite to the second charge-discharge state and the third charge-discharge state; and determining that the first charge-discharge state is the same as the fourth charge-discharge state.
Further, the boost converter is a three-phase boost converter, and the sequence of the switches arranged on the bridge arms of the three-phase boost converter is represented asWherein S is 11 、S 12 Is a first bridge arm switch S 21 、S 22 Is a second bridge arm switch S 31 、S 32 Is a third bridge arm switch, by controlling S 11 、S 12 、S 21 、S 22 、S 31 、S 32 To control the charge and discharge states of the three-phase main circuit and the three-phase slave circuit.
Further, determining charge-discharge state information of the boost converter includes: control the first bridge arm switch S 11 、S 12 Closing to make the first phase main loop be in a charging state; control the third bridge arm switch S 32 Disconnecting, so that the first phase is discharged from the circuit; control the second bridge arm switch S2 2 Closing the second bridge arm switch S 21 Opening the third bridge arm switch S 31 And the second phase secondary loop and the third phase secondary loop are disconnected to control the second phase primary loop and the third phase primary loop to be in a discharging state, and the second phase secondary loop and the third phase secondary loop are in a charging state.
Further, determining charge-discharge state information of the boost converter includes: control the second bridge arm switch S 21 、S 22 Closing to make the second phase main loop be in a charging state; control the first bridge arm switch S 12 Disconnecting, so that the second phase slave circuit is in a discharge state; control the third bridge arm switch S 32 Closing the first bridge arm switch S 11 Opening the third bridge arm switch S 31 And the first phase slave circuit and the third phase slave circuit are disconnected to control the first phase master circuit and the third phase master circuit to be in a discharging state, and the first phase slave circuit and the third phase slave circuit are in a charging state.
Further, determining charge-discharge state information of the boost converter includes: control the third bridge arm switch S 31 、S 32 Closing to enable the third phase main loop to be in a charging state; control the second bridge arm switch S 22 Disconnecting so that the third phase slave circuit is in a discharge state; control the first bridge arm switch S 12 Closing the second bridge arm switch S 21 Opening the second bridge arm switch S 21 And the first phase secondary loop and the second phase secondary loop are disconnected to control the first phase primary loop and the second phase primary loop to be in a discharging state, and the first phase secondary loop and the second phase secondary loop are in a charging state.
Further, determining charge-discharge state information of the boost converter includes: control the first bridge arm switch S 12 The second bridge arm switch S 22 The third bridge arm switch S 32 Closing and controlling the first bridge arm switch S 11 The second bridge arm switch S 21 The third bridge arm switch S 31 And the three-phase secondary loops are disconnected so that the three-phase primary loops are in a discharging state and the three-phase secondary loops are in a charging state.
Further, when S i,j When=1 (i=1, 2; j=1, 2, 3), the bridge arm switch is in a closed state; when S is i,j When=0, the bridge arm switch is in an off state, and if the target phase main circuit is in a charging state, the bridge arm switch connected with the target phase main circuit is in a state ofThe bridge arm switch state connected with the target phase slave circuit is +.>The switch state of the other bridge arm is +.>The target phase slave circuit is connected with the targetAnd a slave loop corresponding to the phase-marked master loop.
According to another aspect of an embodiment of the present invention, there is provided a switch modulation device of a boost converter, the device being applied to a multiphase stacked interleaved boost converter, the boost converter including a first number of main loops, slave loops, and bridge arms, wherein a second number of switches are provided on each of the bridge arms, including: the determining module is configured to determine charge and discharge state information of the boost converter, where the charge and discharge state information at least includes: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits; the adjusting module is used for adjusting the states of the switches arranged on the bridge arms connected with the target phase main loop based on the first charge-discharge state, and adjusting the states of the switches arranged on the other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state.
According to a further aspect of an embodiment of the present invention, there is provided a non-volatile storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform any of the switching modulation methods of the converter.
According to a further aspect of an embodiment of the invention there is provided an electronic device comprising a memory having stored therein a computer program and a processor arranged to run the computer program to perform the switching modulation method of any one of the converters.
By applying the scheme, the charge and discharge state information of the boost converter is determined, wherein the charge and discharge state information at least comprises: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the states of the switches arranged on the bridge arms connected with the target phase main loop based on the first charge-discharge state, and adjusting the states of the switches arranged on the other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state. The purpose of simultaneously controlling the charge and discharge of a plurality of inductors is achieved, and therefore the technical effect of improving the working efficiency of the boost converter is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 shows a schematic diagram of a standard two-phase interleaved parallel boost converter;
FIG. 2 shows a schematic diagram of a single-phase stacked interleaved boost converter;
FIG. 3 shows a multiphase stacked interleaved boost converter;
FIG. 4 shows a flow chart of a switch modulation method of a boost converter according to an embodiment of the present application;
FIG. 5 illustrates a three-phase stacked interleaved boost converter according to an embodiment of the present application;
FIG. 6 illustrates a two-phase stacked interleaved boost converter according to an embodiment of the present application;
fig. 7 shows a schematic diagram of a switching modulation device of a boost converter according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
The switching modulation method of the interleaved boost converter mainly relates to three converters, namely a traditional two-phase interleaved parallel boost converter, a single-phase stacked interleaved boost converter and a multi-phase stacked interleaved boost converter.
FIG. 1 is a schematic diagram of a conventional two-phase interleaved parallel boost converter, wherein the switching sequence is [ S ] as shown in FIG. 1 11 S 21 ]Switch S 11 Control the charge and discharge of inductance Lp, switch S 21 The charge and discharge of the inductance Ls is controlled. The single switch controls the charge and discharge of the single inductor, so as to obtain the state of the switch by further analyzing the state of the inductor, the working efficiency is reduced.
FIG. 2 is a schematic circuit diagram of a single-phase stacked interleaved converter, as shown in FIG. 2, with a switching sequence of [ S ] 11 S 21 ]Switch S 11 Control the charge and discharge of inductance Lp, switch S 21 The charge and discharge of the inductance Ls is controlled. The single switch controls the charge and discharge of the single inductor, and each switch only controls the state of one inductor, so that for the state of the switch, the state of the switch is needed to be obtained through further analysis of the state of the inductor, and the working efficiency is reduced.
Fig. 3 is a schematic circuit diagram of a multi-phase stacked interleaved converter, as shown in fig. 3, in which a switch of the multi-phase stacked interleaved converter can control the charge or discharge of two inductors, so that the inductors are analyzed one by one when determining the state of the switch, which consumes much time and greatly reduces the working efficiency.
Aiming at the defects, the invention provides a parallel staggered switch modulation method based on a multi-phase boost stacked staggered topological structure, and the charge and discharge of a plurality of inductors can be controlled by controlling the switching of a switch, so that the time for analyzing the state of the switch is saved, and the working efficiency of the converter is greatly improved.
According to an embodiment of the present invention, there is provided a switch modulation method embodiment of a boost converter, it should be noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different from that herein.
In accordance with an embodiment of the present invention, there is provided a method embodiment of the switch modulation of a boost converter, it being noted that the steps illustrated in the flowchart of the figures may be performed in a computer system, such as a set of computer executable instructions, and that, although a logical sequence is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in a different order than what is illustrated herein.
Fig. 4 is a method for modulating switches of a boost converter according to an embodiment of the present invention, as shown in fig. 4, where the method is applied to a multiphase stacked interleaved boost converter, and the boost converter includes a first number of main loops, slave loops, and bridge arms, where each bridge arm is provided with a second number of switches, and includes:
step S102, determining charge and discharge state information of the boost converter, where the charge and discharge state information at least includes: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits;
step S104, adjusting the states of the switches disposed on the bridge arms connected to the main loop of the target phase based on the first charge-discharge state, and adjusting the states of the switches disposed on the other bridge arms based on the second charge-discharge state, the third charge-discharge state, and the fourth charge-discharge state.
By applying the scheme, the charge and discharge state information of the boost converter is determined, wherein the charge and discharge state information at least comprises: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the states of the switches arranged on the bridge arms connected with the target phase main loop based on the first charge-discharge state, and adjusting the states of the switches arranged on the other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state. The purpose of simultaneously controlling the charge and discharge of a plurality of inductors is achieved, and therefore the technical effect of improving the working efficiency of the boost converter is achieved.
In an alternative embodiment, determining charge and discharge status information of the boost converter includes: determining that the first charge-discharge state is opposite to the second charge-discharge state and the third charge-discharge state; and determining that the first charge-discharge state is the same as the fourth charge-discharge state.
In an alternative embodiment, as shown in fig. 5, the boost converter is a three-phase boost converter, and the sequence of switches provided on the legs of the three-phase boost converter is shown asWherein S is 11 、S 12 Is a first bridge arm switch S 21 、S 22 Is a second bridge arm switch S 31 、S 32 Is a third bridge arm switch, by controlling S 11 、S 12 、S 21 、S 22 、S 31 、S 32 To control the charge and discharge states of the three-phase main circuit and the three-phase slave circuit.
In an alternative embodiment, determining charge and discharge status information of the boost converter includes: control the first bridge arm switch S 11 、S 12 Closing to make the first phase main loop be in a charging state; control the third bridge arm switch S 32 Disconnecting, so that the first phase is discharged from the circuit; control the second bridge arm switch S 22 Closing the second bridge arm switch S 21 Opening the third bridge arm switch S 31 The second phase main circuit and the third phase main circuit are disconnected to be in a discharging state, the second phase auxiliary circuit and the third phase auxiliary circuit are in a charging state, and the state of the switch in the state is expressed asWherein 1 represents closed and 0 represents open.
In an alternative embodiment, determining charge and discharge status information of the boost converter includes: control the second bridge arm switch S 21 、S 22 Closing to make the second phase main loop be in a charging state; control the first bridge arm switch S 12 Disconnecting, so that the second phase slave circuit is in a discharge state; control the third bridge arm switch S 32 Closing the first bridge arm switch S 11 Opening the third bridge arm switch S 31 The first phase main loop and the third phase main loop are disconnected to be in a discharging state, the first phase auxiliary loop and the third phase auxiliary loop are in a charging state, and the state of the switch in the state is expressed asWherein 1 represents closed and 0 represents open.
In an alternative embodiment, determining charge and discharge status information of the boost converter includes: control the third bridge arm switch S 31 、S 32 Closing to enable the third phase main loop to be in a charging state; control the second bridge arm switch S 22 Disconnecting so that the third phase slave circuit is in a discharge state; control the first bridge arm switch S 12 Closing the second bridge arm switch S 21 Opening the second bridge arm switch S 21 The first phase main circuit and the second phase main circuit are disconnected to be in a discharging state, the first phase auxiliary circuit and the second phase auxiliary circuit are in a charging state, and the state of the switch in the state is expressed asWherein 1 represents closed and 0 represents open.
In an alternative embodiment, determining charge and discharge status information of the boost converter includes controlling the first leg switch S 12 The second bridge arm switch S 22 The third bridge arm switch S 32 Closing and controlling the first bridge arm switch S 11 The second bridge arm switch S 21 The third bridge arm switch S 31 The three-phase main loop is disconnected to be in a discharging state, the three-phase auxiliary loop is in a charging state, and the state of the switch in the state is expressed asWherein 1 represents closed and 0 represents open.
In an alternative embodiment, when S i,j When=1 (i=1, 2; j=1, 2, 3), the bridge arm switch is in a closed state; when S is i,j When=0, the bridge arm switch is in an off state, and if the target phase main circuit is in a charging state, the bridge arm switch connected with the target phase main circuit is in a state ofThe bridge arm switch state connected with the target phase slave circuit isThe switch state of the other bridge arm is +.>The target phase slave circuit is a slave circuit corresponding to the target phase master circuit.
The embodiment shown in fig. 6 shows a two-phase stacked interleaved boost converter with two leg switches distributed as:the method is divided into the following cases:
1) Charging the primary circuit of the first phase, discharging the primary circuit of the second phase, charging the secondary circuit of the second phase, and the state of the switch in this state is expressed asWherein 1 represents closed and 0 represents open;
2) Charging the second phase main circuit, discharging the second phase secondary circuit, discharging the first phase main circuit, charging the first phase secondary circuit, the state of the switch in this state being expressed asWherein 1 represents closed and 0 represents open;
3) When the first phase main loop and the second phase main loop are all discharged, both secondary loops are charged, and the state of the switch in the state is expressed asWherein 1 represents closed and 0 represents open;
in summary, the modulation method of the switch can be obtained: which phase of main circuit is charged, the switch state of the bridge arm connected with the phase of main circuit isThe bridge arm connected with this phase slave circuit has a switch state of +>The switch state of other bridge arms is->
Example 2
According to an embodiment of the present invention, there is further provided an apparatus embodiment for implementing a switching modulation method of the above-mentioned boost converter, and fig. 7 is a schematic structural diagram of a switching modulation apparatus of a boost converter according to an embodiment of the present invention, and as shown in fig. 7, the apparatus is applied to a multiphase stacked interleaved boost converter, where the boost converter includes a first number of main loops, slave loops, and bridge arms, and each bridge arm is provided with a second number of switches, and includes:
a determining module 71, configured to determine charge and discharge state information of the boost converter, where the charge and discharge state information at least includes: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits;
the adjusting module 72 is configured to adjust a state of a switch disposed on a bridge arm connected to the target phase main circuit based on the first charge-discharge state, and adjust states of switches disposed on other bridge arms based on the second charge-discharge state, the third charge-discharge state, and the fourth charge-discharge state.
It should be noted that each of the above modules may be implemented by software or hardware, for example, in the latter case, it may be implemented by: the above modules may be located in the same processor; alternatively, the various modules described above may be located in different processors in any combination.
It should be noted that, the optional or preferred implementation manner of this embodiment may be referred to the related description in embodiment 1, and will not be repeated here.
The switch modulation device of the converter may further include a processor and a memory, wherein the determining module 71, the adjusting module 72, and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to implement the corresponding functions.
The processor comprises a kernel, the kernel fetches corresponding program units from the memory, and one or more of the kernels can be arranged. The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.
According to an embodiment of the present application, there is also provided an embodiment of a nonvolatile storage medium. Optionally, in this embodiment, the nonvolatile storage medium includes a stored program, where when the program runs, the device in which the nonvolatile storage medium is controlled to execute the switching modulation method of any one of the converters.
Alternatively, in this embodiment, the above-mentioned nonvolatile storage medium may be located in any one of the computer terminals in the computer terminal group in the computer network or in any one of the mobile terminals in the mobile terminal group, and the above-mentioned nonvolatile storage medium includes a stored program.
Optionally, the program controls the device in which the nonvolatile storage medium is located to perform the following functions when running: determining charge and discharge state information of the boost converter, wherein the charge and discharge state information at least comprises: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the states of the switches arranged on the bridge arms connected with the target phase main loop based on the first charge-discharge state, and adjusting the states of the switches arranged on the other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state.
According to an embodiment of the present application, there is also provided an embodiment of a processor. Optionally, in this embodiment, the processor is configured to run a program, where the program executes any one of the switching modulation methods of the converter during running.
According to an embodiment of the present application, there is also provided an embodiment of a computer program product adapted to perform a program for initializing the steps of a switch modulation method of any of the converters described above when executed on a data processing device.
Optionally, the computer program product mentioned above, when executed on a data processing device, is adapted to perform a program initialized with the method steps of: determining charge and discharge state information of the boost converter, wherein the charge and discharge state information at least comprises: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the states of the switches arranged on the bridge arms connected with the target phase main loop based on the first charge-discharge state, and adjusting the states of the switches arranged on the other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state.
According to an embodiment of the present application, there is also provided an embodiment of an electronic device, including a memory, and a processor, the memory storing a computer program, the processor being configured to run the computer program to perform the switching modulation method of any one of the converters described above.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable non-volatile storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a non-volatile storage medium, including instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned nonvolatile storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (9)
1. A method of switching modulation of a boost converter, the method being applied to a multiphase stacked interleaved boost converter, the boost converter comprising a first number of master loops, slave loops and legs, wherein a second number of switches are provided on each of the legs, comprising:
determining charge and discharge state information of the boost converter, wherein the charge and discharge state information at least comprises: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits;
adjusting states of switches arranged on bridge arms connected with the target phase main loop based on the first charge-discharge state, and adjusting states of switches arranged on other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state;
wherein the boost converter is a three-phase boost converter, and the sequence of switches arranged on bridge arms of the three-phase boost converter is represented asWherein S is 11 、S 12 Is a first bridge arm switch S 21 、S 22 Is a second bridge arm switch S 31 、S 32 Is a third bridge arm switch, by controlling S 11 、S 12 、S 21 、S 22 、S 31 、S 32 To control the charge and discharge states of the three-phase main loop and the three-phase slave loop;
wherein, when S ij When=1, where i=1, 2,3; j=1, 2, the bridge arm switch is in a closed state; when S is ij When=0, the bridge arm switch is in an off state, if the targetThe phase main loop is in a charging state, and the bridge arm switch state connected with the target phase main loop is thatThe bridge arm switch state connected with the target phase slave circuit is +.>The switch state of the other bridge arm is +.>The target phase slave circuit is a slave circuit corresponding to the target phase master circuit.
2. The method of claim 1, wherein determining charge-discharge status information of the boost converter comprises:
determining that the first charge-discharge state is opposite to the second charge-discharge state and the third charge-discharge state;
and determining that the first charge-discharge state is the same as the fourth charge-discharge state.
3. The method of claim 1, wherein determining charge-discharge status information of the boost converter comprises:
control the first bridge arm switch S 11 、S 12 Closing to make the first phase main loop be in a charging state;
control the third bridge arm switch S 32 Disconnecting, so that the first phase is discharged from the circuit;
control the second bridge arm switch S 22 Closing the second bridge arm switch S 21 Opening the third bridge arm switch S 31 And the second phase secondary loop and the third phase secondary loop are disconnected to control the second phase primary loop and the third phase primary loop to be in a discharging state, and the second phase secondary loop and the third phase secondary loop are in a charging state.
4. The method of claim 1, wherein determining charge-discharge status information of the boost converter comprises:
control the second bridge arm switch S 21 、S 22 Closing to make the second phase main loop be in a charging state;
control the first bridge arm switch S 12 Disconnecting, so that the second phase slave circuit is in a discharge state;
control the third bridge arm switch S 32 Closing the first bridge arm switch S 11 Opening the third bridge arm switch S 31 And the first phase slave circuit and the third phase slave circuit are disconnected to control the first phase master circuit and the third phase master circuit to be in a discharging state, and the first phase slave circuit and the third phase slave circuit are in a charging state.
5. The method of claim 1, wherein determining charge-discharge status information of the boost converter comprises:
control the third bridge arm switch S 31 、S 32 Closing to enable the third phase main loop to be in a charging state;
control the second bridge arm switch S 22 Disconnecting so that the third phase slave circuit is in a discharge state;
control the first bridge arm switch S 12 Closing the first bridge arm switch S 11 Opening the second bridge arm switch S 21 And the first phase secondary loop and the second phase secondary loop are disconnected to control the first phase primary loop and the second phase primary loop to be in a discharging state, and the first phase secondary loop and the second phase secondary loop are in a charging state.
6. The method of claim 1, wherein determining charge-discharge status information of the boost converter comprises:
control the first bridge arm switch S 12 The second bridge arm switch S 22 The third bridge arm switch S 32 Closing and controlling the first bridge arm switch S 11 The second bridge arm switch S 21 The third bridge arm switch S 31 The three-phase main loop is disconnected to enable the three-phase auxiliary loop to be in a discharge stateA state of charge.
7. A switching modulation device for a boost converter, wherein the device is applied to a multiphase stacked interleaved boost converter, the boost converter comprising a first number of main loops, secondary loops, and bridge legs, wherein a second number of switches are disposed on each of the bridge legs, comprising:
the determining module is configured to determine charge and discharge state information of the boost converter, where the charge and discharge state information at least includes: a first charge-discharge state of a target phase main circuit, a second charge-discharge state of a slave circuit corresponding to the target phase main circuit, a third charge-discharge state of other main circuits except the target phase main circuit, and a fourth charge-discharge state of other slave circuits;
the adjusting module is used for adjusting the states of the switches arranged on the bridge arms connected with the target phase main loop based on the first charge-discharge state and adjusting the states of the switches arranged on other bridge arms based on the second charge-discharge state, the third charge-discharge state and the fourth charge-discharge state;
wherein the boost converter is a three-phase boost converter, and the sequence of switches arranged on bridge arms of the three-phase boost converter is represented asWherein S is 11 、S 12 Is a first bridge arm switch S 21 、S 22 Is a second bridge arm switch S 31 、S 32 Is a third bridge arm switch, by controlling S 11 、S 12 、S 21 、S 22 、S 31 、S 32 To control the charge and discharge states of the three-phase main loop and the three-phase slave loop;
wherein, when S ij When=1, where i=1, 2,3; j=1, 2, the bridge arm switch is in a closed state; when S is ij When=0, the bridge arm switch is in an off state, and if the target phase main circuit is in a charging state, the bridge arm switch is connected with the target phaseThe bridge arm switch state of the main circuit connection isThe bridge arm switch state connected with the target phase slave circuit is +.>The switch state of the other bridge arm is +.>The target phase slave circuit is a slave circuit corresponding to the target phase master circuit.
8. A non-volatile storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to perform the switching modulation method of the converter of any of claims 1 to 6.
9. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to run the computer program to perform the switching modulation method of the converter of any of claims 1 to 6.
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| CN101976999A (en) * | 2010-11-30 | 2011-02-16 | 中国汽车技术研究中心 | Three-leg nine-switch inverter for driving double-alternating current motor |
| JP2017153244A (en) * | 2016-02-24 | 2017-08-31 | 本田技研工業株式会社 | Power supply device, equipment, and control method |
| CN111277139A (en) * | 2018-12-04 | 2020-06-12 | 意法半导体股份有限公司 | Stacked buck converter |
| CN113541489A (en) * | 2021-07-02 | 2021-10-22 | 燕山大学 | Composite type staggered parallel direct current conversion circuit and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11418125B2 (en) * | 2019-10-25 | 2022-08-16 | The Research Foundation For The State University Of New York | Three phase bidirectional AC-DC converter with bipolar voltage fed resonant stages |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976999A (en) * | 2010-11-30 | 2011-02-16 | 中国汽车技术研究中心 | Three-leg nine-switch inverter for driving double-alternating current motor |
| JP2017153244A (en) * | 2016-02-24 | 2017-08-31 | 本田技研工業株式会社 | Power supply device, equipment, and control method |
| CN111277139A (en) * | 2018-12-04 | 2020-06-12 | 意法半导体股份有限公司 | Stacked buck converter |
| CN113541489A (en) * | 2021-07-02 | 2021-10-22 | 燕山大学 | Composite type staggered parallel direct current conversion circuit and control method |
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