CN114069821A - Switching power supply circuit control method and device and power supply system - Google Patents
Switching power supply circuit control method and device and power supply system Download PDFInfo
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- CN114069821A CN114069821A CN202111164313.7A CN202111164313A CN114069821A CN 114069821 A CN114069821 A CN 114069821A CN 202111164313 A CN202111164313 A CN 202111164313A CN 114069821 A CN114069821 A CN 114069821A
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 31
- 230000001276 controlling effect Effects 0.000 claims abstract description 12
- 238000004590 computer program Methods 0.000 claims description 14
- 230000015654 memory Effects 0.000 claims description 14
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- 238000004364 calculation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
Abstract
The invention provides a switching power supply circuit control method, a switching power supply circuit control device and a power supply system, wherein the method is applied to a target switching process, the target switching process is a process of switching the power supply system from a first power supply mode to a second power supply mode after the target switching process is started, and a power supply circuit corresponding to the second power supply mode is a target switching power supply circuit; the method comprises the following steps: after the target switching power supply circuit is detected to be switched on, acquiring a voltage direct-current component and a current direct-current component output by the target switching power supply circuit, determining a voltage direct-current component error based on the voltage direct-current component, and determining a current direct-current component regulating quantity based on the current direct-current component; determining a reference phase voltage adjustment amount based on the voltage direct-current component error and the current direct-current component adjustment amount; and adjusting the preset reference phase voltage according to the reference phase voltage adjustment amount, and controlling the target switching power supply circuit based on the adjusted reference phase voltage. The invention can ensure the smooth switching of the power supply mode, thereby ensuring the power supply quality.
Description
Technical Field
The invention belongs to the technical field of parallel operation control, and particularly relates to a switching power supply circuit control method and device and a power supply system.
Background
For a dynamic voltage restorer or a UPS working in an energy-saving operation mode, it may be necessary to switch the power supply mode according to the quality of the power grid.
In this process, the inventors of the present application found the following problems: when the power supply mode is switched, if a direct current component exists in a system circuit or a load has a direct current component, an SCR (Silicon Controlled Rectifier) in the existing power supply circuit may not be turned off (especially in a zero-line-free system), thereby affecting the switching of the power supply mode and further affecting the power supply quality.
Disclosure of Invention
The invention aims to provide a switching power supply circuit control method, a switching power supply circuit control device and a power supply system, and aims to solve the problem that power supply mode switching is influenced due to the existence of a direct current component in the prior art.
In a first aspect of the embodiments of the present invention, a method for controlling a switching power supply circuit is provided, where after a target switching process is started, the target switching process is a process in which a power supply system switches from a first power supply mode to a second power supply mode, and a power supply circuit corresponding to the second power supply mode is a controlled target switching power supply circuit; the switching power supply circuit control method comprises the following steps:
after the target switching power supply circuit is detected to be conducted, acquiring a voltage direct-current component output by the target switching power supply circuit, and determining a voltage direct-current component error of the target switching power supply circuit based on the voltage direct-current component;
acquiring a current direct-current component output by a target switching power supply circuit, and determining a current direct-current component regulating quantity of the target switching power supply circuit based on the current direct-current component;
determining a reference phase voltage adjustment quantity of a target switching power supply circuit based on the voltage direct-current component error and the current direct-current component adjustment quantity;
and adjusting a preset reference phase voltage according to the reference phase voltage adjustment amount, and controlling the target switching power supply circuit based on the adjusted reference phase voltage.
In one possible implementation, before it is detected that the target switching power supply circuit is turned on, the switching power supply circuit control method further includes:
and after receiving a starting instruction of a target switching process, controlling the output voltage of a target switching power supply circuit to be synchronous with the output voltage of the power supply circuit corresponding to the first power supply mode, and controlling the target switching power supply circuit to be conducted after the output voltage of the target switching power supply circuit is synchronous with the output voltage of the power supply circuit corresponding to the first power supply mode.
In one possible implementation, the determining a voltage dc component error of the target switching power supply circuit based on the voltage dc component includes:
and taking the difference between a preset voltage direct-current component reference value and the voltage direct-current component as the voltage direct-current component error of the target switching power supply circuit.
In one possible implementation, the determining a dc current component adjustment amount of the target switching power supply circuit based on the dc current component includes:
determining a current direct-current component error of a target switching power supply circuit based on a preset current direct-current component reference value and the current direct-current component;
and inputting the current direct-current component error into a first preset controller to obtain the direct-current component regulating quantity of the target switching power supply circuit.
In one possible implementation, the determining a reference phase voltage adjustment amount of a target switching power supply circuit based on the voltage dc component error and the current dc component adjustment amount includes:
adjusting the voltage direct-current component error based on the current direct-current component adjustment quantity to obtain an adjusted voltage direct-current component error;
inputting the adjusted voltage direct-current component error into a second preset controller to obtain an initial reference phase voltage adjustment quantity of the target switching power supply circuit;
and adjusting the initial reference phase voltage adjustment amount based on the current direct current component adjustment amount to obtain the reference phase voltage adjustment amount of the target switching power supply circuit.
In one possible implementation manner, before the initial reference phase voltage adjustment amount is adjusted based on the current dc component adjustment amount, the switching power supply circuit control method further includes:
the initial reference phase voltage adjustment is clipped.
In a possible implementation manner, the adjusting the voltage dc component error based on the current dc component adjustment amount to obtain an adjusted voltage dc component error includes:
and superposing the current direct-current component regulating quantity on the voltage direct-current component error to obtain the regulated voltage direct-current component error.
In a possible implementation manner, the adjusting an initial reference phase voltage adjustment amount based on the current dc component adjustment amount to obtain a reference phase voltage adjustment amount of a target switching power supply circuit includes:
and superposing the current direct-current component regulating quantity on the initial reference phase voltage regulating quantity to obtain the reference phase voltage regulating quantity of the target switching power supply circuit.
In a third aspect of the embodiments of the present invention, there is provided a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the switching power supply circuit control method when executing the computer program.
In a fourth aspect of the embodiments of the present invention, there is provided a power supply system including:
a power supply device and the switching power supply circuit control device;
the switching power supply circuit control device is connected with a switching power supply circuit in the power supply device.
The switch power supply circuit control method and device and the power supply system have the advantages that:
first, the present invention presents an unobvious problem, namely the presence of a dc component that affects the switching of the power supply modes. On the basis, the invention also provides a direct current component adjusting scheme different from the prior art, and different from the prior art, the invention also obtains the current direct current component of the target switching power supply circuit, determines the current direct current component adjusting quantity of the target switching power supply circuit based on the current direct current component of the target switching power supply circuit, and achieves the effect of adjusting the voltage direct current and the current direct current at the same time by introducing the current direct current component adjusting quantity into the calculation of the reference phase voltage adjusting quantity. That is to say, the invention can better adjust the direct current component to realize the smooth switching of the power supply mode, thereby improving the power supply quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for 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 without creative efforts.
Fig. 1 is a schematic flowchart of a control method of a switching power supply circuit according to an embodiment of the invention;
fig. 2 is a block diagram of a switching power supply circuit control device according to an embodiment of the present invention;
fig. 3 is a block diagram of a power supply system according to an embodiment of the present invention;
fig. 4 is a loop diagram corresponding to the calculation of the reference phase voltage adjustment 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, fig. 1 is a schematic flow chart of a switching power supply circuit control method according to an embodiment of the present invention, where the switching power supply circuit control method is applied to a target switching process (that is, after the switching power supply circuit control method provided by the embodiment of the present invention starts a domain target switching process), the target switching process is a process in which a power supply system switches from a first power supply mode to a second power supply mode, and a power supply circuit corresponding to the second power supply mode is a controlled target switching power supply circuit. The switching power supply circuit control method comprises the following steps:
s101: and after the target switching power supply circuit is detected to be switched on, acquiring a voltage direct-current component output by the target switching power supply circuit, and determining a voltage direct-current component error of the target switching power supply circuit based on the voltage direct-current component.
In this embodiment, the on state of the target switching power supply circuit can be detected in real time, and the control process of the scheme can be started after the target switching power supply circuit is detected to be on.
In one possible implementation, determining a voltage dc component error of a target switching power supply circuit based on a voltage dc component includes:
and taking the difference between the preset voltage direct-current component reference value and the voltage direct-current component as the voltage direct-current component error of the target switching power supply circuit.
In this embodiment, the preset reference value of the voltage dc component may be 0, or may be a reference value calculated according to the dc component carried by the load.
S102: and acquiring a current direct-current component output by the target switching power supply circuit, and determining the current direct-current component regulating quantity of the target switching power supply circuit based on the current direct-current component.
In one possible implementation, determining a dc current component adjustment amount of a target switching power supply circuit based on a dc current component includes:
and determining the current direct-current component error of the target switching power supply circuit based on the preset current direct-current component reference value and the current direct-current component.
And inputting the current direct-current component error into a first preset controller to obtain the direct-current component regulating quantity of the target switching power supply circuit.
In this embodiment, the preset reference value of the dc component of the current may be 0, or may be a reference value calculated according to the dc component carried by the load.
In this embodiment, the difference between the preset reference value of the dc component and the dc component of the current may be used as the error of the dc component of the target switching power supply circuit.
In this embodiment, the first predetermined controller may be an integral controller.
Referring to FIG. 4, the reference value I of the DC component of the currentDC_refWith the direct current component I of the target switching power supply circuitDC_fdbAnd the difference is used as the current direct-current component error of the target switching power supply circuit, and the current direct-current component error is input into the proportional controller to obtain the direct-current component regulating quantity of the target switching power supply circuit.
S103: and determining a reference phase voltage adjustment quantity of the target switching power supply circuit based on the voltage direct-current component error and the current direct-current component adjustment quantity.
In the embodiment, the reference phase voltage adjustment amount is calculated based on the voltage direct current component error, and the voltage direct current component is applied to the calculation process of the reference phase voltage adjustment amount, so that the voltage direct current is adjusted and the current direct current is adjusted at the same time.
S104: and adjusting the preset reference phase voltage according to the reference phase voltage adjustment amount, and controlling the target switching power supply circuit based on the adjusted reference phase voltage.
In this embodiment, the reference phase voltage adjustment amount may be superimposed on a preset reference phase voltage of the local machine to obtain an adjusted reference phase voltage, and current sharing control may be performed on the target switching power supply circuit based on the adjusted reference phase voltage. The control of the target switching power supply circuit based on the reference phase voltage belongs to the prior art, and is not described in detail in the embodiment of the invention.
The beneficial effects of the embodiment of the invention can be obtained as follows:
first, the embodiment of the present invention provides an unobvious problem, that is, the existence of the dc component affects the switching of the power supply mode.
Secondly, on the basis, the embodiment of the invention also provides a direct current component adjusting scheme which is different from the prior art. In the prior art, only the voltage dc component is usually adjusted, because the prior art generally considers that the current dc component can be ensured to be zero as long as the voltage dc component is controlled to be zero, but in practical application, the current dc is not necessarily zero when the voltage dc component is controlled to be zero due to factors such as matching characteristics of devices or wiring, which causes that the dc component cannot be effectively adjusted in some scenes. Therefore, different from the prior art, the embodiment of the invention also obtains the current direct-current component of the target switching power supply circuit, determines the current direct-current component regulating quantity of the target switching power supply circuit based on the current direct-current component of the target switching power supply circuit, and achieves the effect of regulating the voltage direct current and the current direct current at the same time by introducing the current direct-current component regulating quantity into the calculation of the reference phase voltage regulating quantity. That is to say, the embodiment of the present invention can better adjust the dc component to realize smooth switching of the power supply mode, thereby improving the power supply quality.
Specifically, the method of the embodiment of the invention can specifically solve the following two problems:
firstly, a direct current component exists in the target switching power supply circuit, which may cause a direct current voltage difference to exist between the target switching power supply circuit and a power supply circuit (marked as a first power supply circuit) corresponding to the first power supply mode, resulting in that the SCR of the first power supply circuit cannot be turned off.
Secondly, if the load has a direct current component, the scheme can control and output the corresponding direct current component so as to offset the direct current component remained on the first power supply circuit by the load, thereby realizing the smooth turn-off of the SCR.
That is to say, the method of the embodiment of the present invention can solve the two problems, and ensure the smooth turn-off of the SCR, thereby ensuring the smooth switching of the power supply mode and ensuring the power supply quality.
In one possible implementation, before it is detected that the target switching power supply circuit is turned on, the switching power supply circuit control method further includes:
and after receiving a starting instruction of a target switching process, controlling the output voltage of the target switching power supply circuit to be synchronous with the output voltage of the power supply circuit corresponding to the first power supply mode, and controlling the target switching power supply circuit to be switched on after the output voltage of the target switching power supply circuit is synchronous with the output voltage of the power supply circuit corresponding to the first power supply mode.
In this embodiment, the method for controlling the switching power supply circuit may further include a control process before the target switching power supply circuit is turned on, that is, the voltage synchronization is controlled in the switching preparation stage, and the target switching power supply circuit is controlled to be turned on after the control voltage synchronization.
In one possible implementation, determining a reference phase voltage adjustment amount of a target switching power supply circuit based on a voltage dc component error and a current dc component adjustment amount includes:
and adjusting the voltage direct-current component error based on the current direct-current component adjustment quantity to obtain the adjusted voltage direct-current component error.
And inputting the adjusted voltage direct-current component error into a second preset controller to obtain the initial reference phase voltage adjustment quantity of the target switching power supply circuit.
And adjusting the initial reference phase voltage adjustment quantity based on the current direct current component adjustment quantity to obtain the reference phase voltage adjustment quantity of the target switching power supply circuit.
In a possible implementation manner, adjusting a voltage dc component error based on a current dc component adjustment amount to obtain an adjusted voltage dc component error includes:
and superposing the current direct-current component regulating quantity on the voltage direct-current component error to obtain the regulated voltage direct-current component error.
In one possible implementation manner, adjusting an initial reference phase voltage adjustment amount based on a current dc component adjustment amount to obtain a reference phase voltage adjustment amount of a target switching power supply circuit includes:
and superposing the current direct-current component regulating quantity on the initial reference phase voltage regulating quantity to obtain the reference phase voltage regulating quantity of the target switching power supply circuit.
Referring to fig. 4, a predetermined reference value U of the dc component of the voltage can be obtainedDC_refDC component U of voltage of target switch power circuitDC_fdbThe difference is used as a voltage direct-current component error of a target switching power supply circuit, then the current direct-current component regulating quantity is respectively superposed on the voltage direct-current component error and the initial reference phase voltage regulating quantity so as to realize the regulation of the reference phase voltage regulating quantity, and the current direct-current regulating quantity is introduced into the voltage direct-current regulation so as to better regulate the direct-current component. The current direct-current component adjustment quantity is superposed on the initial reference phase voltage adjustment quantity (namely, the current direct-current component adjustment quantity directly acts on the loop output in fig. 4), so that the response speed of the target switching power supply circuit control can be effectively improved.
In one possible implementation, before the initial reference phase voltage adjustment amount is adjusted based on the current dc component adjustment amount, the switching power supply circuit control method further includes:
the initial reference phase voltage adjustment is clipped.
In this embodiment, before the initial reference phase voltage adjustment amount is adjusted, the initial reference phase voltage adjustment amount may be limited. For example, the initial reference phase voltage adjustment (i.e., the loop output) may be limited to 0.1V to avoid over-control, which may cause the circuit to oscillate. In practical application, the operation can be directly integrated into the controller for realization.
In this embodiment, the second preset controller may be a proportional integral controller.
In a second aspect of the embodiment of the present invention, a switching power supply circuit control device is provided, referring to fig. 2, and fig. 2 is a schematic block diagram of the switching power supply circuit control device according to the embodiment of the present invention. The switching power supply circuit control device 200 in the present embodiment as shown in fig. 2 may include: one or more processors 201, one or more input devices 202, one or more output devices 203, and one or more memories 204. The processor 201, the input device 202, the output device 203 and the memory 204 are communicated with each other through a communication bus 205. The memory 204 is used to store a computer program comprising program instructions. The processor 201 is operable to execute program instructions stored by the memory 204. The processor 201 is configured to call a program instruction to execute the above steps, such as the functions of step S101 to step S104 shown in fig. 1.
It should be understood that, in the embodiment of the present invention, the Processor 201 may be a Central Processing Unit (CPU), and the Processor may also be other general processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The input device 202 may include a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of the fingerprint), a microphone, etc., and the output device 203 may include a display (LCD, etc.), a speaker, etc.
The memory 204 may include both read-only memory and random access memory and provides instructions and data to the processor 201. A portion of memory 204 may also include non-volatile random access memory. For example, memory 204 may also store device type information.
In specific implementation, the processor 201, the input device 202, and the output device 203 described in this embodiment of the present invention may execute the implementation manners described in the first embodiment and the second embodiment of the switching power supply circuit control method provided in this embodiment of the present invention, and may also execute the implementation manners of the switching power supply circuit control apparatus described in this embodiment of the present invention, which is not described herein again.
In another embodiment of the present invention, a computer-readable storage medium is provided, in which a computer program is stored, where the computer program includes program instructions, and the program instructions, when executed by a processor, implement all or part of the processes in the method of the above embodiments, and may also be implemented by a computer program instructing associated hardware, and the computer program may be stored in a computer-readable storage medium, and the computer program, when executed by a processor, may implement the steps of the above methods embodiments. 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 computer readable storage medium may be an internal storage unit of the switching power supply circuit control device of any of the foregoing embodiments, for example, a hard disk or a memory of the switching power supply circuit control device. The computer readable storage medium may also be an external storage device of the switching power supply circuit control apparatus, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the switching power supply circuit control apparatus. Further, the computer-readable storage medium may also include both an internal storage unit of the switching power supply circuit control apparatus and an external storage device. The computer-readable storage medium is used for storing computer programs and other programs and data required for the switching power supply circuit control device. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. 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.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the switching power supply circuit control apparatus described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again. In the several embodiments provided in the present application, it should be understood that the disclosed switching power supply circuit control apparatus and method may be implemented in other manners.
In a third aspect of the embodiments of the present invention, there is provided a power supply system 30, including:
a power supply device 31 and the switching power supply circuit control device 200;
the switching power supply circuit control device 200 is connected to a switching power supply circuit in the power supply device 31.
That is, the switching power supply circuit in the power supply device 31 is the target switching power supply circuit in the above-described method embodiment. In the present embodiment, the Power Supply device 31 may be a UPS (Uninterruptible Power Supply) device, or may be another Power Supply device including a DVR (Dynamic voltage restorer).
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A switching power supply circuit control method is characterized in that after the switching power supply circuit control method is applied to starting of a target switching process, the target switching process is a process of switching a power supply system from a first power supply mode to a second power supply mode, and a power supply circuit corresponding to the second power supply mode is a controlled target switching power supply circuit; the switching power supply circuit control method comprises the following steps:
after the target switching power supply circuit is detected to be conducted, acquiring a voltage direct-current component output by the target switching power supply circuit, and determining a voltage direct-current component error of the target switching power supply circuit based on the voltage direct-current component;
acquiring a current direct-current component output by a target switching power supply circuit, and determining a current direct-current component regulating quantity of the target switching power supply circuit based on the current direct-current component;
determining a reference phase voltage adjustment quantity of a target switching power supply circuit based on the voltage direct-current component error and the current direct-current component adjustment quantity;
and adjusting a preset reference phase voltage according to the reference phase voltage adjustment amount, and controlling the target switching power supply circuit based on the adjusted reference phase voltage.
2. The switching power supply circuit control method according to claim 1, wherein before detecting that the target switching power supply circuit is turned on, the switching power supply circuit control method further comprises:
and after receiving a starting instruction of a target switching process, controlling the output voltage of a target switching power supply circuit to be synchronous with the output voltage of the power supply circuit corresponding to the first power supply mode, and controlling the target switching power supply circuit to be conducted after the output voltage of the target switching power supply circuit is synchronous with the output voltage of the power supply circuit corresponding to the first power supply mode.
3. The switching power supply circuit control method according to claim 1, wherein the determining a voltage dc component error of the target switching power supply circuit based on the voltage dc component includes:
and taking the difference between a preset voltage direct-current component reference value and the voltage direct-current component as the voltage direct-current component error of the target switching power supply circuit.
4. The switching power supply circuit control method according to claim 1, wherein said determining a dc current component adjustment amount of a target switching power supply circuit based on the current dc component includes:
determining a current direct-current component error of a target switching power supply circuit based on a preset current direct-current component reference value and the current direct-current component;
and inputting the current direct-current component error into a first preset controller to obtain the direct-current component regulating quantity of the target switching power supply circuit.
5. The switching power supply circuit control method according to claim 1, wherein the determining a reference phase voltage adjustment amount of a target switching power supply circuit based on the voltage dc component error and the current dc component adjustment amount includes:
adjusting the voltage direct-current component error based on the current direct-current component adjustment quantity to obtain an adjusted voltage direct-current component error;
inputting the adjusted voltage direct-current component error into a second preset controller to obtain an initial reference phase voltage adjustment quantity of the target switching power supply circuit;
and adjusting the initial reference phase voltage adjustment amount based on the current direct current component adjustment amount to obtain the reference phase voltage adjustment amount of the target switching power supply circuit.
6. The switching power supply circuit control method according to claim 5, wherein before adjusting an initial reference phase voltage adjustment amount based on the current direct-current component adjustment amount, the switching power supply circuit control method further comprises:
the initial reference phase voltage adjustment is clipped.
7. The method according to claim 5, wherein the adjusting the voltage dc component error based on the current dc component adjustment amount to obtain an adjusted voltage dc component error comprises:
and superposing the current direct-current component regulating quantity on the voltage direct-current component error to obtain the regulated voltage direct-current component error.
8. The method according to claim 5, wherein the adjusting an initial reference phase voltage adjustment amount based on the current dc component adjustment amount to obtain a reference phase voltage adjustment amount of a target switching power supply circuit comprises:
and superposing the current direct-current component regulating quantity on the initial reference phase voltage regulating quantity to obtain the reference phase voltage regulating quantity of the target switching power supply circuit.
9. A switching power supply circuit control device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, characterized in that said processor implements the steps of the method according to any one of claims 1 to 8 when executing said computer program.
10. A power supply system, comprising:
a power supply device, and the switching power supply circuit control device according to claim 9;
the switching power supply circuit control device is connected with a switching power supply circuit in the power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111164313.7A CN114069821A (en) | 2021-09-30 | 2021-09-30 | Switching power supply circuit control method and device and power supply system |
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| CN202111164313.7A CN114069821A (en) | 2021-09-30 | 2021-09-30 | Switching power supply circuit control method and device and power supply system |
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| CN202111164313.7A Pending CN114069821A (en) | 2021-09-30 | 2021-09-30 | Switching power supply circuit control method and device and power supply system |
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