CN114301279A - Switch modulation method and device of boost converter - Google Patents
Switch modulation method and device of boost converter Download PDFInfo
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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 the following steps: 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 state 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 state 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. The purpose of simultaneously controlling the charging and discharging of a plurality of inductors is achieved, and therefore the technical effect of improving the working efficiency of the boost converter is achieved.
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 switching modulation method of the interleaved converter in 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, as shown in fig. 1 and fig. 2, the charging state or the discharging state of an inductor is controlled by each switch respectively, the method needs to obtain the state of the switch by analyzing the state of the inductor step by step, and the interleaved converter has low working efficiency.
In view of the above problems, no effective solution has been proposed.
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 are used for at least solving 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 carry out gradual analysis on charging and discharging of a plurality of inductors in the prior art.
According to an aspect of the embodiments of the present invention, there is provided a switch modulation method of a boost converter, the method is applied to a multiphase stacked interleaved boost converter, the boost converter includes a first number of master loops, slave loops and legs, wherein each of the legs has a second number of switches disposed thereon, and the method includes: 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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the state of switches arranged on the bridge arm connected with the target phase main loop based on the first charge-discharge state, and adjusting the state 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.
Further, determining charge and discharge state 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.
Further, the boost converter is a three-phase boost converter, and the sequence of the switches arranged on the arms of the three-phase boost converter is represented as
Wherein S is11、S12Is a first bridge arm switch, S21、S22Is a second leg switch, S31、S32For the third arm switch by controlling S11、S12、S21、S22、S31、S32To control the charge and discharge state of the three-phase main circuit and the charge and discharge state of the three-phase slave circuit.
Further, determining charge and discharge state information of the boost converter comprises: controlling the first bridge arm switch S11、S12Closing to enable the first phase main loop to be in a charging state; controlling the third bridge arm switch S32Is disconnected to make the first phaseThe slave loop is in a discharging state; controlling said second leg switch S22Closed, the second leg switch S21Off, the third arm switch S31And disconnecting the circuit to control the second-phase main circuit and the third-phase main circuit to be in a discharging state, and the second-phase slave circuit and the third-phase slave circuit to be in a charging state.
Further, determining charge and discharge state information of the boost converter comprises: controlling the second bridge arm switch S21、S22Closing to enable the second phase main loop to be in a charging state; controlling the first bridge arm switch S12Disconnecting to make the second phase in a discharging state from the loop; controlling the third bridge arm switch S32Closed, the first bridge arm switch S11Off, the third arm switch S31And disconnecting the first phase main circuit and the third phase main circuit to control the first phase main circuit and the third phase main circuit to be in a discharging state, and controlling the first phase slave circuit and the third phase slave circuit to be in a charging state.
Further, determining charge and discharge state information of the boost converter comprises: controlling the third bridge arm switch S31、S32Closing to enable the third phase main loop to be in a charging state; controlling the second bridge arm switch S22Disconnecting to make the third phase in a discharging state from the loop; controlling the first bridge arm switch S12Closed, the second leg switch S21Off, the second bridge arm switch S21And disconnecting the first phase main loop and the second phase main loop to control the first phase main loop and the second phase main loop to be in a discharging state, and controlling the first phase slave loop and the second phase slave loop to be in a charging state.
Further, determining charge and discharge state information of the boost converter comprises: controlling the first bridge arm switch S12The second bridge arm switch S22The third bridge arm switch S32Closed and controls the first bridge arm switch S11The second bridge arm switch S21The third bridge arm switch S31And disconnecting the three-phase main loop and the three-phase auxiliary loop so that the three-phase main loop and the three-phase auxiliary loop are in a discharging state and a charging state respectively.
Further, when S isi,j＝1(i＝1,2；j＝1,2,3) When the bridge arm switch is in a closed state, the bridge arm switch is in a closed state; when S isi,jWhen the target phase main loop is in a charging state, the bridge arm switch connected with the target phase main loop is in a disconnected state
The bridge arm connected with the target phase slave loop has a switch state of
The switching states of the other bridge arms are
The target phase slave circuit is a slave circuit corresponding to the target phase master circuit.
According to another aspect of the embodiments of the present invention, there is provided a switching modulation apparatus for a boost converter, the apparatus being applied to a multiphase stacked interleaved boost converter, the boost converter including a first number of master loops, slave loops and legs, wherein each of the legs has a second number of switches disposed thereon, the apparatus including: a determining module, 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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and the adjusting module is used for adjusting the state of the switch arranged on the bridge arm connected with the target phase main loop based on the first charging and discharging state and adjusting the state of the switch arranged on other bridge arms based on the second charging and discharging state, the third charging and discharging state and the fourth charging and discharging state.
According to a further aspect of embodiments 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 one of the above described switching modulation methods of a converter.
According to a further aspect of the embodiments of the present invention, there is provided an electronic device, including a memory and a processor, the memory having a computer program stored therein, the processor being configured to execute the computer program to perform any one of the switching modulation methods of the converter.
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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the state of switches arranged on the bridge arm connected with the target phase main loop based on the first charge-discharge state, and adjusting the state 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. The purpose of simultaneously controlling the charging and discharging 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 embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 shows a schematic diagram of a standard two-phase interleaved boost converter;
FIG. 2 shows a single phase stacked interleaved boost converter schematic;
FIG. 3 shows a multiphase stacked interleaved boost converter;
FIG. 4 shows a flow chart of a method of switching modulation of a boost converter according to an embodiment of the 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 arrangement of a boost converter according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or 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 multiphase stacked interleaved boost converter.
FIG. 1 is a schematic circuit diagram of a conventional two-phase interleaved boost converter, as shown in FIG. 1, with a switching sequence of [ S ]11 S21]Switch S11Controlling the charging and discharging of the inductor Lp, the switch S21Controlling the charging and discharging of the inductor Ls. A single switch controls the charging and discharging of a single inductor, soIn the switching state, the state of the switch needs to be obtained through further analyzing the state of the inductor, and 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 ]11S21]Switch S11Controlling the charging and discharging of the inductor Lp, the switch S21Controlling the charging and discharging of the inductor Ls. The single switch controls the charging and discharging of the single inductor, and each switch only controls the state of one inductor, so that for the switch state, the state of the switch needs to be obtained through further analyzing the state of the inductor, and the working efficiency is reduced.
Fig. 3 is a schematic circuit diagram of a multiphase stacked interleaved converter, as shown in fig. 3, unlike the single-phase stacked interleaved converter, a switch in the multiphase stacked interleaved converter can control the charging or discharging of two inductors, so that the inductors are analyzed one by one when determining the switch states, which consumes much time and greatly reduces the work efficiency.
In view of the above disadvantages, the present invention provides a parallel interleaved switch modulation method based on a multi-phase boost stacked interleaved topology structure, which can control the charging and discharging of a plurality of inductors by controlling the switching of switches, thereby saving the time for analyzing the switch state and greatly improving the working efficiency of the converter.
In accordance with an embodiment of the present invention, there is provided an embodiment of a method for switching modulation of a boost converter, it is 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 while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
In accordance with an embodiment of the present invention, there is provided an embodiment of a method for switching modulation of a boost converter, it is 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 than that presented herein.
Fig. 4 is a switching modulation method of a boost converter according to an embodiment of the present invention, as shown in fig. 4, the method is applied to a multiphase stacked interleaved boost converter, the boost converter includes a first number of master loops, slave loops, and legs, wherein each of the legs has a second number of switches disposed thereon, and includes:
step S102, 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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits;
and step S104, adjusting the state of a switch arranged on an arm connected with the target phase main loop based on the first charge-discharge state, and adjusting the state of switches arranged on other 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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the state of switches arranged on the bridge arm connected with the target phase main loop based on the first charge-discharge state, and adjusting the state 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. The purpose of simultaneously controlling the charging and discharging 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 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.
In an alternative embodiment, as shown in fig. 5, the boost converter is a three-phase boost converter, the order of the switches arranged on the legs of the three-phase boost converter being indicated as
Wherein S is11、S12Is a first bridge arm switch, S21、S22Is a second leg switch, S31、S32For the third arm switch by controlling S11、S12、S21、S22、S31、S32To control the charge and discharge state of the three-phase main circuit and the charge and discharge state of the three-phase slave circuit.
In an alternative embodiment, determining charge and discharge state information of the boost converter includes: controlling the first bridge arm switch S11、S12Closing to enable the first phase main loop to be in a charging state; controlling the third bridge arm switch S32Disconnecting to make the first phase in a discharging state from the loop; controlling the second bridge arm switch S22Closed, the second leg switch S21Off, the third arm switch S31Disconnecting the switch to control the second phase main circuit and the third phase main circuit to be in a discharging state, controlling the second phase slave circuit and the third phase slave circuit to be in a charging state, and indicating the state of the switch in the state
Where 1 indicates closed and 0 indicates open.
In an alternative embodiment, determining charge and discharge state information of the boost converter includes: controlling the second bridge arm switch S21、S22Closing to enable the second phase main loop to be in a charging state; controlling the first bridge arm switch S12Disconnecting to make the second phase in a discharging state from the loop; controlling the third bridge armSwitch S32Closed, the first bridge arm switch S11Off, the third arm switch S31Disconnecting the first phase main circuit and the third phase main circuit to be in a discharging state, enabling the first phase slave circuit and the third phase slave circuit to be in a charging state, and representing the state of the switch in the state
Where 1 indicates closed and 0 indicates open.
In an alternative embodiment, determining charge and discharge state information of the boost converter includes: controlling the third bridge arm switch S31、S32Closing to enable the third phase main loop to be in a charging state; controlling the second bridge arm switch S22Disconnecting to make the third phase in a discharging state from the loop; controlling the first bridge arm switch S12Closed, the second leg switch S21Off, the second bridge arm switch S21Disconnecting the switch to control the first phase main loop and the second phase main loop to be in a discharging state, and controlling the first phase slave loop and the second phase slave loop to be in a charging state, wherein the state of the switch in the state is expressed as
Where 1 indicates closed and 0 indicates open.
In an alternative embodiment, determining the charge-discharge state information of the boost converter includes controlling the first bridge arm switch S12The second bridge arm switch S22The third bridge arm switch S32Closed and controls the first bridge arm switch S11The second bridge arm switch S21The third bridge arm switch S31Is disconnected so that the three-phase main circuit is in a discharge state and the three-phase auxiliary circuit is in a charge state, and the state of the switch in the state is expressed as
Where 1 indicates closed and 0 indicates open.
In an alternative embodiment, when Si,jWhen the value is 1(i is 1, 2; j is 1,2,3), the bridge arm switch is in a closed state; when S isi,jWhen the target phase main loop is in a charging state, the bridge arm switch connected with the target phase main loop is in a disconnected state
The bridge arm connected with the target phase slave loop has a switch state of
The switching states of the other bridge arms are
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 following cases are classified:
1) charging the first phase main loop, discharging the first phase slave loop, discharging the second phase main loop, charging the second phase slave loop, and expressing the state of the switch in the state
Wherein 1 represents closed and 0 represents open;
2) charging the second phase main loop, discharging the second phase slave loop, discharging the first phase main loop, charging the first phase slave loop, and expressing the state of the switch in the state
Wherein 1 represents closed and 0 represents open;
3) when the first phase main loop and the second phase main loop are discharged, the two slave loops are charged, and the state of the switch in the state is expressed as
Wherein 1 represents closed and 0 represents open;
in summary, a modulation method of the switch can be obtained: which phase main loop is charged, the bridge arm connected with the phase main loop has the switch state of
The bridge arm connected to this phase slave circuit has a switching state of
The switching states of the other bridge arms are
Example 2
According to an embodiment of the present invention, there is also provided an embodiment of an apparatus for implementing a switching modulation method of a boost converter, 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 switching modulation apparatus of the converter is applied to a multiphase stacked interleaved boost converter, the boost converter includes a first number of master loops, slave loops, and legs, wherein each of the legs has a second number of switches disposed thereon, and includes:
a determining module 71, configured to determine charge/discharge state information of the boost converter, where the charge/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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits;
and an adjusting module 72, configured to adjust states of switches arranged on an arm connected to the target phase main circuit based on the first charge-discharge state, and adjust states of switches arranged on other arms based on the second charge-discharge state, the third charge-discharge state, and the fourth charge-discharge state.
It should be noted that the above modules may be implemented by software or hardware, for example, for the latter, the following may be implemented: the modules can be located in the same processor; alternatively, the modules may be located in different processors in any combination.
It should be noted that, reference may be made to the relevant description in embodiment 1 for alternative or preferred embodiments of this embodiment, and details are not described here again.
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 corresponding functions.
The processor comprises a kernel, and the kernel calls a corresponding program unit from the memory, wherein one or more than one kernel can be arranged. The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
According to an embodiment of the present application, there is also provided an embodiment of a non-volatile storage medium. Optionally, in this embodiment, the nonvolatile storage medium includes a stored program, and when the program runs, the apparatus in which the nonvolatile storage medium is located is controlled to execute the switching modulation method of any one of the converters.
Optionally, in this embodiment, the nonvolatile storage medium may be located in any one of a group of computer terminals in a computer network, or in any one of a group of mobile terminals, and the nonvolatile storage medium includes a stored program.
Optionally, the apparatus in which the non-volatile storage medium is controlled to perform the following functions when the program is executed: 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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the state of switches arranged on the bridge arm connected with the target phase main loop based on the first charge-discharge state, and adjusting the state 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.
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 is run to execute the switching modulation method of any one of the converters.
There is further provided, according to an embodiment of the present application, an embodiment of a computer program product, which, when being executed on a data processing device, is adapted to execute a program for initializing the steps of the switching modulation method of any of the converters described above.
Optionally, the computer program product described above, when being executed on a data processing device, is adapted to perform a procedure for initializing the following method steps: 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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits; and adjusting the state of switches arranged on the bridge arm connected with the target phase main loop based on the first charge-discharge state, and adjusting the state 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.
According to an embodiment of the present application, there is further provided an embodiment of an electronic device, including a memory and a processor, where the memory stores a computer program, and the processor is configured to execute the computer program to perform the switching modulation method of the converter according to any one of the above methods.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
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 in the form of a software product, which is stored in a non-volatile storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) 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), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (11)
1. A method of switching modulation for a boost converter, the method being applied to a multiphase stacked interleaved boost converter, the boost converter including a first number of master loops, slave loops, and legs, wherein each of the legs has a second number of switches disposed thereon, 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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits;
and adjusting the state of switches arranged on the bridge arm connected with the target phase main loop based on the first charge-discharge state, and adjusting the state 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.
2. The method of claim 1, wherein determining charge and discharge state 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 the boost converter is a three-phase boost converter, and the sequence of switches arranged on the legs of the three-phase boost converter is represented as
Wherein S is11、S12Is a first bridge arm switch, S21、S22Is a second leg switch, S31、S32For the third arm switch by controlling S11、S12、S21、S22、S31、S32To control the charge and discharge state of the three-phase main circuit and the charge and discharge state of the three-phase slave circuit.
4. The method of claim 3, wherein determining charge and discharge state information of the boost converter comprises:
controlling the first bridge arm switch S11、S12Closing to enable the first phase main loop to be in a charging state;
controlling the third bridge arm switch S32Disconnecting to make the first phase in a discharging state from the loop;
controlling the second bridge arm switch S22Closed, the second leg switch S21Off, the third arm switch S31And disconnecting the circuit to control the second-phase main circuit and the third-phase main circuit to be in a discharging state, and the second-phase slave circuit and the third-phase slave circuit to be in a charging state.
5. The method of claim 3, wherein determining charge and discharge state information of the boost converter comprises:
controlling the second bridge arm switch S21、S22Closing to enable the second phase main loop to be in a charging state;
controlling the first bridge arm switch S12Disconnecting to make the second phase in a discharging state from the loop;
controlling the third bridge arm switch S32Closed, the first bridge arm switch S11Off, the third arm switch S31And disconnecting the first phase main circuit and the third phase main circuit to control the first phase main circuit and the third phase main circuit to be in a discharging state, and controlling the first phase slave circuit and the third phase slave circuit to be in a charging state.
6. The method of claim 3, wherein determining charge and discharge state information of the boost converter comprises:
controlling the third bridge arm switch S31、S32Closing to enable the third phase main loop to be in a charging state;
controlling the second bridge arm switch S22Disconnecting to make the third phase in a discharging state from the loop;
controlling the first bridge arm switch S12Closed, the second leg switch S21Off, the second bridge arm switch S21And disconnecting the first phase main loop and the second phase main loop to control the first phase main loop and the second phase main loop to be in a discharging state, and controlling the first phase slave loop and the second phase slave loop to be in a charging state.
7. The method of claim 3, wherein determining charge and discharge state information of the boost converter comprises:
controlling the first bridge arm switch S12The second bridge arm switch S22The third bridge arm switch S32Closed and controls the first bridge arm switch S11The second bridge arm switch S21The third bridge arm switch S31And disconnecting the three-phase main loop and the three-phase auxiliary loop so that the three-phase main loop and the three-phase auxiliary loop are in a discharging state and a charging state respectively.
8. The method according to any one of claims 3 to 7, wherein S is measured asi,jWhen the value is 1(i is 1, 2; j is 1,2,3), the bridge arm switch is in a closed state; when S isi,jWhen the target phase main loop is in a charging state, the bridge arm switch connected with the target phase main loop is in a disconnected state
The bridge arm connected with the target phase slave loop has a switch state of
The switching states of the other bridge arms are
The target phase slave circuit is a slave circuit corresponding to the target phase master circuit.
9. A switching modulation apparatus for a boost converter, the apparatus being applied to a multiphase stacked interleaved boost converter, the boost converter including a first number of master loops, slave loops, and legs, wherein each of the legs has a second number of switches disposed thereon, comprising:
a determining module, 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 a master circuit other than the target phase main circuit, and a fourth charge-discharge state of other slave circuits;
and the adjusting module is used for adjusting the state of the switch arranged on the bridge arm connected with the target phase main loop based on the first charging and discharging state and adjusting the state of the switch arranged on other bridge arms based on the second charging and discharging state, the third charging and discharging state and the fourth charging and discharging state.
10. A non-volatile storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to execute the method of switching modulation of a converter according to any one of claims 1 to 8.
11. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and the processor is configured to execute the computer program to perform the method of switching modulation of a converter according to any one of claims 1 to 8.
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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 |
| US20210126550A1 (en) * | 2019-10-25 | 2021-04-29 | The Research Foundation For The State University Of New York | Three phase bidirectional ac-dc converter with bipolar voltage fed resonant stages |
| 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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|---|---|---|---|---|
| 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 |
| US20210126550A1 (en) * | 2019-10-25 | 2021-04-29 | 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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