CN113110683A - Power efficiency adjusting method, terminal and computer readable storage medium - Google Patents
Power efficiency adjusting method, terminal and computer readable storage medium Download PDFInfo
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- CN113110683A CN113110683A CN202110341730.8A CN202110341730A CN113110683A CN 113110683 A CN113110683 A CN 113110683A CN 202110341730 A CN202110341730 A CN 202110341730A CN 113110683 A CN113110683 A CN 113110683A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/625—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc
Abstract
The invention is applicable to the technical field of power supply regulation, and provides a power supply efficiency regulation method, a terminal and a computer readable storage medium. The power supply comprises a preceding-stage voltage conversion circuit, a bus and a rear-stage voltage conversion circuit which are sequentially connected, and the power supply efficiency adjusting method comprises the following steps: acquiring the ratio of the bus voltage to the input voltage of the preceding-stage voltage conversion circuit as the preceding-stage voltage conversion ratio; acquiring the ratio of the output voltage of the rear-stage voltage conversion circuit to the bus voltage as a rear-stage voltage conversion ratio; and based on the preset bus voltage range, regulating the bus voltage according to the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio so as to enable the power supply to work at the optimal efficiency. The invention can automatically adjust the efficiency of the power supply equipment and improve the working efficiency of the power supply equipment.
Description
Technical Field
The invention belongs to the technical field of power supply regulation, and particularly relates to a power supply efficiency regulation method, a power supply efficiency regulation device, a power supply efficiency regulation terminal and a computer readable storage medium.
Background
At present, power supplies, especially switching power supplies, are applied in many fields, and with the development of society, the application range will be wider and wider, and efficiency is receiving more and more attention as an important performance index of power supply equipment.
Generally, a power supply, particularly a switching power supply, is divided into a preceding-stage voltage conversion circuit and a subsequent-stage voltage conversion circuit, efficiency of the preceding-stage voltage conversion circuit and efficiency of the subsequent-stage voltage conversion circuit are main factors influencing efficiency of the whole power supply equipment, and most of the prior art only adjusts efficiency of the preceding-stage voltage conversion circuit so as to adjust efficiency of the power supply, or only adjusts efficiency of the subsequent-stage voltage conversion circuit so as to adjust efficiency of the power supply, so that efficiency of adjusting the power supply is not comprehensive and accurate.
Disclosure of Invention
In view of the above, the present invention provides a power efficiency adjusting method, an apparatus, a terminal and a computer-readable storage medium, so as to solve the problem that in the prior art, most efficiency adjustment is performed only on a preceding-stage voltage conversion circuit to adjust power efficiency, or efficiency adjustment is performed only on a subsequent-stage voltage conversion circuit to adjust power efficiency, and the power efficiency adjustment is not comprehensive and accurate.
A first aspect of an embodiment of the present invention provides a power supply efficiency adjusting method, where a power supply includes a preceding-stage voltage conversion circuit, a bus, and a succeeding-stage voltage conversion circuit, which are connected in sequence, and the power supply efficiency adjusting method includes:
acquiring the ratio of the bus voltage to the input voltage of the preceding-stage voltage conversion circuit as the preceding-stage voltage conversion ratio;
acquiring the ratio of the output voltage of the rear-stage voltage conversion circuit to the bus voltage as a rear-stage voltage conversion ratio;
and based on the preset bus voltage range, regulating the bus voltage according to the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio so as to enable the power supply to work at the optimal efficiency.
A second aspect of embodiments of the present invention provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the power efficiency adjusting method according to the first aspect when executing the computer program.
A third aspect of embodiments of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the power efficiency adjustment method according to the first aspect.
Compared with the prior art, the invention has the following beneficial effects:
the ratio of the bus voltage to the input voltage of the preceding-stage voltage conversion circuit is obtained and used as the preceding-stage voltage conversion ratio; acquiring the ratio of the output voltage of the rear-stage voltage conversion circuit to the bus voltage as a rear-stage voltage conversion ratio; and based on the preset bus voltage range, regulating the bus voltage according to the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio so as to enable the power supply to work at the optimal efficiency. According to the invention, the power efficiency is automatically adjusted by acquiring two parameters of the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio, so that the power supply can work at the integral optimal efficiency, convenience and rapidness are realized, the energy utilization rate is improved, and the high efficiency of the power supply equipment in the working process is further improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a power supply according to an embodiment of the present invention;
FIG. 2 is a flow chart of an implementation of a power efficiency adjustment method provided by an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a power conditioning device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description is made by way of specific embodiments with reference to the accompanying drawings.
Referring to fig. 1, a schematic diagram of a power supply provided by an embodiment of the invention is shown.
As shown in fig. 1, in some embodiments of the present invention, the power supply 1 may include a front-stage voltage converting circuit 10, a bus 11, and a rear-stage voltage converting circuit 12 connected in sequence, and in general, the power supply 1 converts a three-phase power supply voltage into a voltage usable by an output load.
Referring to fig. 2, it shows a flowchart of an implementation of the power efficiency adjusting method provided by the embodiment of the invention.
As shown in fig. 2, in some embodiments of the present invention, the power supply may include a preceding-stage voltage conversion circuit, a bus bar, and a succeeding-stage voltage conversion circuit connected in sequence, and the power supply efficiency adjustment method may include:
s101, acquiring a ratio of a bus voltage to an input voltage of a preceding-stage voltage conversion circuit as a preceding-stage voltage conversion ratio;
optionally, the input voltage of the preceding-stage voltage conversion circuit is the input voltage of the power supply, and the bus voltage is the output voltage of the preceding-stage voltage conversion circuit.
Optionally, the preceding-stage voltage conversion ratio may be obtained in real time at a first preset time interval in the power supply working process; the first preset time interval can be set according to actual needs.
S102, acquiring the ratio of the output voltage of the rear-stage voltage conversion circuit to the bus voltage as a rear-stage voltage conversion ratio;
optionally, the bus voltage is an input voltage of the post-stage voltage conversion circuit, and an output voltage of the post-stage voltage conversion circuit is an output voltage of the power supply.
Optionally, the post-stage voltage conversion ratio may be obtained in real time at a second preset time interval during the power supply operation; the second preset time interval can be set according to actual needs, and the first preset time interval and the second preset time interval can be the same or different.
S103, based on the preset bus voltage range, the bus voltage is adjusted according to the former-stage voltage conversion ratio and the latter-stage voltage conversion ratio, so that the power supply works at the optimal efficiency.
Optionally, under the general condition, for guaranteeing that the power supply is stable, the input voltage and the output voltage of power are stable, and bus voltage can change, but bus voltage need change in certain extent, surpass and probably lead to the power unstability behind the voltage variation scope, can predetermine bus voltage scope according to actual need to guarantee that bus voltage can not cause the influence to the stability of power in predetermineeing bus voltage within range.
The ratio of the bus voltage to the input voltage of the preceding-stage voltage conversion circuit is obtained and used as the preceding-stage voltage conversion ratio; acquiring the ratio of the output voltage of the rear-stage voltage conversion circuit to the bus voltage as a rear-stage voltage conversion ratio; and based on the preset bus voltage range, regulating the bus voltage according to the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio so as to enable the power supply to work at the optimal efficiency. According to the invention, the power efficiency is automatically adjusted by acquiring two parameters of the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio, so that the power supply can work at the integral optimal efficiency, convenience and rapidness are realized, the energy utilization rate is improved, and the high efficiency of the power supply equipment in the working process is further improved.
In some embodiments of the present invention, the step S103 "based on the preset bus voltage range, adjusting the bus voltage according to the previous-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio so that the power supply operates at the optimal efficiency" may include;
and S1031, if the preceding-stage voltage conversion ratio is smaller than a first preset ratio and the subsequent-stage voltage conversion ratio is not smaller than a second preset ratio, performing voltage boost regulation on the bus voltage within a preset bus voltage range according to a first preset rule so as to enable the power supply to work at the optimal efficiency.
Illustratively, when the front-stage voltage conversion ratio is smaller than a first preset ratio and the rear-stage voltage conversion ratio is not smaller than a second preset ratio, the bus voltage is boosted and adjusted, so that the efficiency of the front-stage voltage conversion circuit and the efficiency of the rear-stage voltage conversion circuit are both improved, and the overall efficiency of the power supply is improved.
And S1032, if the preceding-stage voltage conversion ratio is not smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is smaller than the second preset ratio, carrying out voltage reduction regulation on the bus voltage within a preset bus voltage range according to a second preset rule so as to enable the power supply to work at the optimal efficiency.
Illustratively, when the front-stage voltage conversion ratio is not less than the first preset ratio and the rear-stage voltage conversion ratio is less than the second preset ratio, the bus voltage is subjected to voltage reduction regulation, so that the efficiency of both the front-stage voltage conversion circuit and the rear-stage voltage conversion circuit of the front-stage voltage conversion circuit can be improved, and the overall efficiency of the power supply can be improved.
S1033, if the preceding-stage voltage conversion ratio is smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is smaller than the second preset ratio, or the preceding-stage voltage conversion ratio is not smaller than the first preset ratio and the subsequent-stage voltage conversion circuit is not smaller than the second preset ratio, the bus voltage is adjusted within the preset bus voltage range according to a third preset rule, so that the power supply operates at the optimal efficiency.
Optionally, if the preceding-stage voltage conversion ratio is smaller than the first preset ratio and the subsequent-stage voltage conversion circuit is smaller than the second preset ratio, the bus voltage is adjusted within the preset bus voltage range according to a third preset rule, so that the power supply works at the optimal efficiency; and if the conversion ratio of the preceding-stage voltage is not less than the first preset ratio and the output voltage conversion circuit of the later stage is not less than the second preset ratio, regulating the bus voltage within the preset bus voltage range according to a third preset rule so as to enable the power supply to work at the optimal efficiency.
In some embodiments of the present invention, if the preceding-stage voltage conversion circuit is a resonant circuit, the first preset ratio is a preceding-stage voltage conversion ratio corresponding to a resonant point of the preceding-stage voltage conversion circuit;
if the rear-stage voltage conversion circuit is a resonant circuit, the second preset ratio is a rear-stage voltage conversion ratio corresponding to the resonant point of the rear-stage voltage conversion circuit.
Optionally, for the resonant circuit, the resonant point may be determined when the resonant circuit is designed.
For example, if the subsequent voltage conversion circuit is a resonant circuit, the relationship between the input voltage and the bus voltage for the previous voltage conversion circuit can be expressed as:
bus voltage (input voltage) preceding stage voltage conversion ratio M1
The preceding-stage voltage conversion ratio M1 is a ratio of the bus voltage to the input voltage of the preceding-stage voltage conversion circuit.
The relationship between the output voltage of the voltage conversion circuit of the subsequent stage and the bus voltage can be expressed as:
output voltage (bus voltage) post-stage voltage conversion ratio M2
The rear-stage voltage conversion ratio M2 is a ratio of the output voltage of the rear-stage voltage conversion circuit to the bus voltage.
Illustratively, the output voltage is the input voltage by the preceding voltage conversion ratio M1 by the following voltage conversion ratio M2;
the power supply efficiency can be adjusted by adjusting the preceding-stage voltage conversion ratio M1 and the subsequent-stage voltage conversion ratio M2 while ensuring that the output voltage and the input voltage are not changed.
The power efficiency adjustment can be expressed as efficiency adjustment of a preceding-stage voltage conversion circuit and efficiency adjustment of a subsequent-stage voltage conversion circuit, the power efficiency is improved when the efficiency of the preceding-stage voltage conversion circuit and the efficiency of the subsequent-stage voltage conversion circuit are both improved, and under the condition that the input and the output of a power supply are not changed, the efficiency of the preceding-stage voltage conversion circuit and the efficiency of the subsequent-stage voltage conversion circuit can be adjusted by adjusting the bus voltage, so that the key for changing the power efficiency is to adjust the bus voltage.
Optionally, the first preset ratio is a voltage conversion ratio corresponding to the front-stage voltage conversion circuit with the highest efficiency, the second preset ratio is a voltage conversion ratio corresponding to the rear-stage voltage conversion circuit with the highest efficiency, and both the first preset ratio and the second preset ratio can be determined by using the existing method.
In some embodiments of the present invention, the performing the boost regulation on the bus voltage according to the first preset rule within the preset bus voltage range may include:
carrying out voltage boost adjustment on the bus voltage within a preset bus voltage range according to a first preset increment; in the process of carrying out voltage boost regulation on the bus voltage, the conversion ratio of the front-stage voltage is always smaller than a first preset ratio, and the conversion ratio of the rear-stage voltage is always not smaller than a second preset ratio.
Optionally, the first preset increment may be set according to actual needs.
In some embodiments of the present invention, the voltage reduction and regulation of the bus voltage according to the second preset rule in the preset bus voltage range may include:
carrying out decompression adjustment on the bus voltage within a preset bus voltage range according to a first preset decrement; in the process of carrying out voltage reduction regulation on the bus voltage, the voltage conversion ratio of the front stage is not smaller than a first preset ratio all the time, and the voltage conversion ratio of the rear stage is smaller than a second preset ratio all the time.
Optionally, the first preset decrement may be set according to actual needs.
In some embodiments of the present invention, adjusting the bus voltage according to a third preset rule within the preset bus voltage range may include:
within a preset bus voltage range:
performing voltage boosting adjustment on the current bus voltage according to a second preset increment, and calculating the power supply efficiency corresponding to the voltage-boosted and adjusted bus voltage;
if the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment is greater than the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment, skipping to the step of performing the voltage boost adjustment on the current bus voltage according to a second preset increment for cyclic execution;
if the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment is not greater than the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment, performing voltage reduction adjustment on the current bus voltage according to a second preset decrement, and calculating the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment;
if the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment is larger than the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment, skipping to the step of performing the voltage reduction adjustment on the current bus voltage according to a second preset decrement for cyclic execution;
if the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment is not greater than the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment, taking a third preset increment as a new second preset increment, taking a third preset decrement as a new second preset decrement, and jumping to the step of performing voltage boost adjustment on the current bus voltage according to the second preset increment for cyclic execution until the absolute value of the difference between the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment and the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment is smaller than a preset difference, or the absolute value of the difference between the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment and the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment is smaller than the preset difference; and the third increment is smaller than the second preset increment, and the third preset decrement is smaller than the second preset decrement.
Optionally, when the previous-stage voltage conversion ratio is smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is smaller than the second preset ratio, or the previous-stage voltage conversion ratio is not smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is not smaller than the second preset ratio, the power efficiency corresponding to each bus voltage within the preset bus voltage range may be calculated, and the current bus voltage is adjusted to the bus voltage corresponding to the point where the power efficiency is maximum.
Optionally, if the preceding-stage voltage conversion ratio is smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is not smaller than the second preset ratio in the process of adjusting the bus voltage according to the third preset rule, the bus voltage is adjusted in a preset bus voltage range according to the first preset rule.
If the preceding-stage voltage conversion ratio is not smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is smaller than the second preset ratio in the process of regulating the bus voltage according to the third preset rule, the bus voltage is subjected to voltage reduction regulation according to the second preset rule within the preset bus voltage range.
In some embodiments of the present invention, the first stage voltage converting circuit may be a boost converting circuit or a buck converting circuit, and the second stage voltage converting circuit may be a boost converting circuit or a buck converting circuit.
Optionally, the front-stage voltage conversion circuit or the rear-stage voltage conversion circuit may be a boost conversion circuit or a buck conversion circuit including a Power Factor Correction (PFC) circuit.
In some embodiments of the present invention, at least one of the preceding-stage voltage conversion circuit and the succeeding-stage voltage conversion circuit may be a resonant circuit.
Optionally, the front-stage voltage conversion circuit and the rear-stage voltage conversion circuit may both be resonant circuits, and the resonant circuit may be an LLC resonant voltage conversion circuit.
Illustratively, the former stage voltage conversion circuit is a PFC boost conversion circuit, and the latter stage voltage conversion circuit is an LLC resonant voltage conversion circuit, or the former stage voltage conversion circuit is an LLC resonant voltage conversion circuit, and the latter stage voltage conversion circuit is a PFC boost conversion circuit, and so on.
The invention can directionally and automatically adjust the power supply efficiency under a certain condition according to the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio, is more convenient, quicker and more accurate compared with a mode of manually adjusting the power supply efficiency, and greatly improves the working efficiency of the power supply.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Corresponding to the power efficiency adjusting method, the embodiment of the invention also provides a power efficiency adjusting device, and the power efficiency adjusting device and the power efficiency adjusting method have the same beneficial effects. Referring to fig. 3, which is a schematic diagram illustrating a power efficiency adjusting apparatus provided in an embodiment of the present invention, as shown in fig. 3, in some embodiments of the present invention, a power efficiency adjusting apparatus 30 may include:
a first obtaining module 301, configured to obtain a ratio between a bus voltage and an input voltage of a preceding-stage voltage conversion circuit as a preceding-stage voltage conversion ratio;
a second obtaining module 302, configured to obtain a ratio between an output of the subsequent voltage conversion circuit and a bus voltage as a subsequent voltage conversion ratio;
and the efficiency adjusting module 303 is configured to adjust the bus voltage according to the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio based on a preset bus voltage range, so that the power supply operates at the optimal efficiency.
In some embodiments of the present invention, the efficiency adjustment module 303 may include a boost adjustment unit, a decompression adjustment unit, and an optimization adjustment unit;
the voltage boost regulating unit is used for carrying out voltage boost regulation on the bus voltage according to a first preset rule in a preset bus voltage range so as to enable the power supply to work at the optimal efficiency if the preceding-stage voltage conversion ratio is smaller than a first preset ratio and the subsequent-stage voltage conversion ratio is not smaller than a second preset ratio;
the voltage reduction regulation unit is used for carrying out voltage reduction regulation on the bus voltage within a preset bus voltage range according to a second preset rule if the preceding-stage voltage conversion ratio is not smaller than a first preset ratio and the subsequent-stage voltage conversion ratio is smaller than a second preset ratio so as to enable the power supply to work at the optimal efficiency;
and the optimization adjusting unit is used for adjusting the bus voltage according to a third preset rule in a preset bus voltage range if the preceding-stage voltage conversion ratio is smaller than a first preset ratio and the subsequent-stage voltage conversion ratio is smaller than a second preset ratio, or the preceding-stage voltage conversion ratio is not smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is not smaller than the second preset ratio, so that the power supply works at the optimal efficiency.
Optionally, if the preceding-stage voltage conversion circuit is a resonant circuit, the first preset ratio is a preceding-stage voltage conversion ratio corresponding to a resonant point of the preceding-stage voltage conversion circuit;
if the rear-stage voltage conversion circuit is a resonant circuit, the second preset ratio is a rear-stage voltage conversion ratio corresponding to the resonant point of the rear-stage voltage conversion circuit.
In some embodiments of the present invention, the boost regulator unit may include a boost regulator subunit;
the voltage boost regulating subunit is used for performing voltage boost regulation on the bus voltage within a preset bus voltage range according to a first preset increment; in the process of carrying out voltage boost regulation on the bus voltage, the conversion ratio of the front-stage voltage is always smaller than a first preset ratio, and the conversion ratio of the rear-stage voltage is always not smaller than a second preset ratio.
In some embodiments of the present invention, the reduced pressure adjustment unit may include a reduced pressure adjustment subunit;
the voltage reduction regulation subunit is used for carrying out voltage reduction regulation on the bus voltage within a preset bus voltage range according to a first preset decrement; in the process of carrying out voltage reduction regulation on the bus voltage, the conversion ratio of the front-stage voltage is not smaller than the preset ratio all the time, and the conversion ratio of the rear-stage voltage is smaller than the second preset ratio all the time.
In some embodiments of the present invention, the optimization tuning unit may include an optimization tuning subunit;
the optimizing regulation subunit is used for, within a preset bus voltage range:
performing voltage boosting adjustment on the current bus voltage according to a second preset increment, and calculating the power supply efficiency corresponding to the voltage-boosted and adjusted bus voltage;
if the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment is greater than the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment, skipping to the step of performing the voltage boost adjustment on the current bus voltage according to a second preset increment for cyclic execution;
if the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment is not greater than the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment, performing voltage reduction adjustment on the current bus voltage according to a second preset decrement, and calculating the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment;
if the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment is larger than the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment, skipping to the step of performing the voltage reduction adjustment on the current bus voltage according to a second preset decrement for cyclic execution;
if the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment is not greater than the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment, taking a third preset increment as a new second preset increment, taking a third preset decrement as a new second preset decrement, and jumping to the step of performing voltage boost adjustment on the current bus voltage according to the second preset increment for cyclic execution until the absolute value of the difference between the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment and the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment is smaller than a preset difference, or the absolute value of the difference between the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment and the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment is smaller than the preset difference; and the third increment is smaller than the second preset increment, and the third preset decrement is smaller than the second preset decrement.
Optionally, the first-stage voltage conversion circuit is a boost conversion circuit or a buck conversion circuit, and the second-stage voltage conversion circuit is a boost conversion circuit or a buck conversion circuit.
Optionally, at least one of the front-stage voltage conversion circuit and the rear-stage voltage conversion circuit is a resonant circuit.
Fig. 4 is a schematic diagram of a terminal according to an embodiment of the present invention. As shown in fig. 4, the terminal 40 of this embodiment includes: a processor 401, a memory 402, and a computer program 403 stored in the memory 402 and executable on the processor 401. The processor 401, when executing the computer program 403, implements the steps in the various embodiments of the power efficiency adjustment method described above, such as the steps 101 to 103 shown in fig. 2. Alternatively, the processor 401, when executing the computer program 403, implements the functions of the modules/units in the above-described device embodiments, such as the functions of the units 301 to 303 shown in fig. 3.
Illustratively, the computer program 403 may be partitioned into one or more modules/units, which are stored in the memory 402 and executed by the processor 401 to implement the present invention. One or more of the modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 403 in the terminal 40. For example, the computer program 403 may be divided into the first acquisition module 301, the second acquisition module 302 and the efficiency adjustment module 303, and the specific functions of each unit are as follows:
a first obtaining module 301, configured to obtain a ratio between a bus voltage and an input voltage of a preceding-stage voltage conversion circuit as a preceding-stage voltage conversion ratio;
a second obtaining module 302, configured to obtain a ratio between an output of the subsequent voltage conversion circuit and a bus voltage as a subsequent voltage conversion ratio;
and the efficiency adjusting module 303 is configured to adjust the bus voltage according to the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio based on a preset bus voltage range, so that the power supply operates at the optimal efficiency.
The terminal 40 may be a computing device such as a desktop computer, a notebook, a palm top computer, and a cloud server. The terminal may include, but is not limited to, a processor 401, a memory 402. Those skilled in the art will appreciate that fig. 4 is merely an example of a terminal 40 and does not constitute a limitation of terminal 40, and may include more or fewer components than shown, or some components in combination, or different components, e.g., the terminal may also include input-output devices, network access devices, buses, etc.
The Processor 401 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 402 may be an internal storage unit of the terminal 40, such as a hard disk or a memory of the terminal 40. The memory 402 may also be an external storage device of the terminal 40, such as a plug-in hard disk provided on the terminal 40, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 402 may also include both internal and external memory units of the terminal 40. The memory 402 is used for storing computer programs and other programs and data required by the terminal. The memory 402 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules, so as to perform all or part of the functions described above. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal and method may be implemented in other ways. For example, the above-described apparatus/terminal embodiments are merely illustrative, and for example, a module or a unit may be divided into only one logical function, and may be implemented in other ways, for example, a plurality of 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, devices or units, and may be in an electrical, mechanical or other form.
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 network 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 modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method according to the embodiments of the present invention may also be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of the embodiments of the method. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may include any suitable increase or decrease as required by legislation and patent practice in the jurisdiction, for example, in some jurisdictions, computer readable media may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A power efficiency adjusting method is characterized in that a power supply comprises a preceding-stage voltage conversion circuit, a bus and a subsequent-stage voltage conversion circuit which are connected in sequence, and the power efficiency adjusting method comprises the following steps:
acquiring the ratio of the bus voltage to the input voltage of the preceding-stage voltage conversion circuit as a preceding-stage voltage conversion ratio;
acquiring the ratio of the output voltage of the rear-stage voltage conversion circuit to the bus voltage as a rear-stage voltage conversion ratio;
and based on a preset bus voltage range, regulating the bus voltage according to the preceding-stage voltage conversion ratio and the subsequent-stage voltage conversion ratio so as to enable the power supply to work at the optimal efficiency.
2. The power supply efficiency adjusting method according to claim 1, wherein the adjusting the bus voltage according to the preceding stage voltage conversion ratio and the succeeding stage voltage conversion ratio based on a preset bus voltage range so that the power supply operates at an optimum efficiency includes:
if the preceding-stage voltage conversion ratio is smaller than a first preset ratio and the subsequent-stage voltage conversion ratio is not smaller than a second preset ratio, performing voltage boosting regulation on the bus voltage within the preset bus voltage range according to a first preset rule so that the power supply works at the optimal efficiency;
if the preceding-stage voltage conversion ratio is not smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is smaller than the second preset ratio, carrying out voltage reduction regulation on the bus voltage within the preset bus voltage range according to a second preset rule so as to enable the power supply to work at the optimal efficiency;
if the preceding-stage voltage conversion ratio is smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is smaller than the second preset ratio, or the preceding-stage voltage conversion ratio is not smaller than the first preset ratio and the subsequent-stage voltage conversion ratio is not smaller than the second preset ratio, the bus voltage is adjusted within the preset bus voltage range according to a third preset rule, so that the power supply works at the optimal efficiency.
3. The power supply efficiency adjustment method according to claim 2,
if the preceding-stage voltage conversion circuit is a resonant circuit, the first preset ratio is a preceding-stage voltage conversion ratio corresponding to a resonant point of the preceding-stage voltage conversion circuit;
and if the rear-stage voltage conversion circuit is a resonant circuit, the second preset ratio is a rear-stage voltage conversion ratio corresponding to the resonant point of the rear-stage voltage conversion circuit.
4. The power supply efficiency regulating method according to claim 2, wherein the step-up regulating the bus voltage according to a first preset rule within the preset bus voltage range comprises:
carrying out voltage boost adjustment on the bus voltage within the range of the preset bus voltage according to a first preset increment; in the process of carrying out voltage boost adjustment on the bus voltage, the front-stage voltage conversion ratio is always smaller than the first preset ratio, and the rear-stage voltage conversion ratio is always not smaller than the second preset ratio.
5. The power supply efficiency adjusting method according to claim 2, wherein the step of performing voltage reduction adjustment on the bus voltage within the preset bus voltage range according to a second preset rule comprises:
carrying out decompression adjustment on the bus voltage within the range of the preset bus voltage according to a first preset decrement; in the process of carrying out voltage reduction adjustment on the bus voltage, the former-stage voltage conversion ratio is not smaller than the first preset ratio all the time, and the latter-stage voltage conversion ratio is smaller than the second preset ratio all the time.
6. The power efficiency adjustment method according to claim 2, wherein the adjusting the bus voltage within the preset bus voltage range according to a third preset rule comprises:
within the preset bus voltage range:
performing voltage boosting adjustment on the current bus voltage according to a second preset increment, and calculating the power supply efficiency corresponding to the voltage-boosted and adjusted bus voltage;
if the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment is greater than the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment, skipping to the step of performing the voltage boost adjustment on the current bus voltage according to a second preset increment for cyclic execution;
if the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment is not greater than the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment, performing voltage reduction adjustment on the current bus voltage according to a second preset decrement, and calculating the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment;
if the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment is larger than the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment, skipping to the step of performing the voltage reduction adjustment on the current bus voltage according to a second preset decrement for cyclic execution;
if the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment is not greater than the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment, taking a third preset increment as a new second preset increment, taking a third preset decrement as a new second preset decrement, and jumping to the step of performing voltage boost adjustment on the current bus voltage according to the second preset increment for cyclic execution until the absolute value of the difference between the power supply efficiency corresponding to the bus voltage after the voltage boost adjustment and the power supply efficiency corresponding to the bus voltage before the voltage boost adjustment is smaller than a preset difference, or the absolute value of the difference between the power supply efficiency corresponding to the bus voltage after the voltage reduction adjustment and the power supply efficiency corresponding to the bus voltage before the voltage reduction adjustment is smaller than the preset difference; and the third increment is smaller than the second preset increment, and the third preset decrement is smaller than the second preset decrement.
7. The power supply efficiency adjusting method according to any one of claims 1 to 6, wherein the preceding-stage voltage converting circuit is a step-up converting circuit or a step-down converting circuit, and the succeeding-stage voltage converting circuit is a step-up converting circuit or a step-down converting circuit.
8. The power supply efficiency adjusting method according to any one of claims 1 to 6, wherein at least one of the preceding-stage voltage converting circuit and the succeeding-stage voltage converting circuit is a resonant circuit.
9. A terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the power efficiency adjustment method according to any one of claims 1 to 8 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, carries out the steps of the power supply efficiency adjustment method according to any one of claims 1 to 8 above.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626196A (en) * | 2009-08-05 | 2010-01-13 | 华东交通大学 | Control method for improving efficiency of two-stage current transformer |
| CN103762828A (en) * | 2013-12-31 | 2014-04-30 | 上海科世达-华阳汽车电器有限公司 | Method and device for controlling multistage power electronic converter system |
| CN104426402A (en) * | 2013-09-09 | 2015-03-18 | 南京博兰得电子科技有限公司 | Inverter and adjusting method for direct current bus voltage of inverter |
| WO2016168999A1 (en) * | 2015-04-22 | 2016-10-27 | 阳光电源股份有限公司 | Miniature photovoltaic inverter and control method therefor |
| CN106230261A (en) * | 2016-09-23 | 2016-12-14 | 江苏由甲申田新能源科技有限公司 | A kind of DC DC two-stage pressure-regulating module-cascade circuit |
| CN106469990A (en) * | 2016-05-20 | 2017-03-01 | 上海钧功电子科技有限公司 | A kind of efficient AC-DC supply convertor |
| CN106961151A (en) * | 2017-03-28 | 2017-07-18 | 易事特集团股份有限公司 | The coordination control strategy of two-stage type DC converter based on efficiency optimization |
| CN109104783A (en) * | 2017-06-21 | 2018-12-28 | 通用电气照明解决方案有限公司 | Driving circuit and LED light including driving circuit |
| CN110429837A (en) * | 2019-08-02 | 2019-11-08 | 矽力杰半导体技术(杭州)有限公司 | Wide scope input and output AC-DC converter |
| CN111030470A (en) * | 2019-12-31 | 2020-04-17 | 深圳市永联科技股份有限公司 | Bus voltage regulating circuit and method of two-stage converter |
| CN111049376A (en) * | 2019-12-02 | 2020-04-21 | 浙江大学 | Two-stage type serial photovoltaic power optimizer system communication-free bus modulation method |
| CN112366970A (en) * | 2021-01-14 | 2021-02-12 | 深圳市正浩创新科技有限公司 | Inversion system, inversion system control method and parallel inversion system |
-
2021
- 2021-03-30 CN CN202110341730.8A patent/CN113110683B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626196A (en) * | 2009-08-05 | 2010-01-13 | 华东交通大学 | Control method for improving efficiency of two-stage current transformer |
| CN104426402A (en) * | 2013-09-09 | 2015-03-18 | 南京博兰得电子科技有限公司 | Inverter and adjusting method for direct current bus voltage of inverter |
| CN103762828A (en) * | 2013-12-31 | 2014-04-30 | 上海科世达-华阳汽车电器有限公司 | Method and device for controlling multistage power electronic converter system |
| WO2016168999A1 (en) * | 2015-04-22 | 2016-10-27 | 阳光电源股份有限公司 | Miniature photovoltaic inverter and control method therefor |
| CN106469990A (en) * | 2016-05-20 | 2017-03-01 | 上海钧功电子科技有限公司 | A kind of efficient AC-DC supply convertor |
| CN106230261A (en) * | 2016-09-23 | 2016-12-14 | 江苏由甲申田新能源科技有限公司 | A kind of DC DC two-stage pressure-regulating module-cascade circuit |
| CN106961151A (en) * | 2017-03-28 | 2017-07-18 | 易事特集团股份有限公司 | The coordination control strategy of two-stage type DC converter based on efficiency optimization |
| CN109104783A (en) * | 2017-06-21 | 2018-12-28 | 通用电气照明解决方案有限公司 | Driving circuit and LED light including driving circuit |
| CN110429837A (en) * | 2019-08-02 | 2019-11-08 | 矽力杰半导体技术(杭州)有限公司 | Wide scope input and output AC-DC converter |
| CN111049376A (en) * | 2019-12-02 | 2020-04-21 | 浙江大学 | Two-stage type serial photovoltaic power optimizer system communication-free bus modulation method |
| CN111030470A (en) * | 2019-12-31 | 2020-04-17 | 深圳市永联科技股份有限公司 | Bus voltage regulating circuit and method of two-stage converter |
| CN112366970A (en) * | 2021-01-14 | 2021-02-12 | 深圳市正浩创新科技有限公司 | Inversion system, inversion system control method and parallel inversion system |
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|---|---|
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