Power supply control method, device, storage medium and electronic equipment

Abstract

The present application proposes a power supply control method, device, storage medium and electronic device, the method including: obtaining a first parameter, the first parameter being the power parameter currently transmitted to the load module through the conversion module; determining a control mode based on the first parameter and a preset power threshold, and obtaining an electrical information set; determining a duty cycle fence value based on the control mode, the preset power threshold and the electrical information set, the duty cycle fence value being used to control the conversion module; determining a second parameter based on the duty cycle fence value; controlling the conversion module to supply power to the load module based on the second parameter so that the power transmitted to the load module with a third parameter is within the preset power threshold; realizing real-time determination of the duty cycle fence value based on the detected first parameter and further control of the conversion module based on the duty cycle fence value, which can quickly and stably output the current to the load module, reduce output overvoltage and overcurrent problems, and thereby reduce the occurrence of power supply or load damage.

Description

Technical Field

[0001] The present invention relates to the field of power supply control technology, and in particular to a power supply control method, device, storage medium and electronic equipment. Background Art

[0002] During operation, a DC power supply not only powers conventional linear loads such as motors, batteries, and resistors, but also nonlinear loads. Some nonlinear loads have poor stability, and their inherent impedance characteristics fluctuate with the external environment. This requires the DC power supply to maintain stable output even when the load fluctuates significantly. Conventional DC power supplies rely on traditional PID control methods, but these methods struggle to adapt to high-frequency load fluctuations. This can easily lead to overcurrent when the load is effectively short-circuited, potentially damaging the power supply. Furthermore, when the load is effectively open-circuited, the output current cannot be maintained, causing arc extinction and output overvoltage.

[0003] Currently, for nonlinear loads, it is impossible to ensure that the output current is always stable when the high-frequency load changes, and there is a problem that the output current cannot be stabilized quickly. Summary of the Invention

[0004] The embodiments of the present application provide a power supply control method, device, storage medium and electronic device, which can quickly and stably output current.

[0005] In a first aspect, an embodiment of the present application provides a power supply control method, which is applied to a control module of a target circuit, wherein the target circuit further includes a power supply module, a conversion module, and a load module connected in sequence, and the control module is used to control the conversion module; the method includes:

[0006] Acquire a first parameter, where the first parameter is a parameter of power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module;

[0007] determining a control mode based on the first parameter and a preset power threshold, and acquiring an electrical information set, the electrical information set including electrical parameter information of a plurality of the conversion modules and / or the power supply modules;

[0008] determining a duty cycle fence value based on the control mode, a preset power threshold, and an electrical information set, wherein the duty cycle fence value is used to control the conversion module;

[0009] determining a second parameter based on the duty cycle fence value, where the second parameter is an electrical parameter for regulating the conversion module;

[0010] The conversion module is controlled to supply power to the load module based on the second parameter so that a third parameter supplied to the load module is within a preset power threshold, wherein the third parameter is a power parameter supplied to the load module through the conversion module.

[0011] In a possible embodiment, the control mode includes a first control mode and a second control mode, the preset power threshold includes a first preset power threshold and a second preset power threshold, and the first preset power threshold is less than the second preset power threshold; and determining the control mode and the electrical information set based on the first parameter and the preset power threshold includes:

[0012] If the first parameter is lower than the first preset power threshold range, determining that the control mode is the first control mode, the first control mode is used to quickly increase the power parameter supplied to the load module;

[0013] If the first parameter is higher than the second preset power threshold range, the control mode is determined to be the second control mode, and the second control mode is used to quickly reduce the power parameter delivered to the load module.

[0014] In a possible embodiment, determining the duty cycle fence value based on the control mode, the preset power threshold, and the electrical information set includes:

[0015] If the control mode is the first control mode, determining a first duty cycle parameter and a second duty cycle parameter based on the electrical information set, and determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter;

[0016] If the control mode is the second control mode, the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient are determined based on the electrical information set and the preset power threshold, and the duty cycle fence value is determined based on the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient.

[0017] In a possible embodiment, if the control mode is the first control mode, determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter includes: calculating the duty cycle fence value according to the following first formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes a duty cycle loss portion; if the control mode is the second control mode, determining the duty cycle fence value based on the first duty cycle parameter, the second duty cycle parameter, and the overcurrent coefficient includes: calculating the duty cycle fence value according to the following second formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes the duty cycle loss part, and K0 is the overcurrent coefficient.

[0018] In a possible embodiment, the electrical information set includes transformation module parameters of the transformation module and power module parameters of the power module, the transformation module parameters include at least one of the following: transformer turns, resonant inductance, excitation inductance, switching frequency, dead zone duty cycle, output voltage; the power module parameters include at least bus voltage.

[0019] In a possible embodiment, the duty cycle fence value is a duty cycle for regulation, and determining the second parameter based on the duty cycle fence value includes:

[0020] Controlling the conversion module to adjust the duty cycle based on the duty cycle fence value;

[0021] detecting a fourth parameter, where the fourth parameter is a parameter of the power transmitted to the load module through the conversion module after the duty cycle is adjusted;

[0022] A relationship between the fourth parameter and the preset power threshold is detected, and if the fourth parameter is within a range of the preset power threshold, the second parameter is determined based on the duty cycle fence value and a loop calculation method.

[0023] In a possible embodiment, if the fourth parameter is within the range of the preset power threshold, determining the second parameter based on the duty cycle fence value includes:

[0024] Acquire a power parameter information set, the power parameter information set including a plurality of power parameters when the fourth parameter is within a range of the preset power threshold;

[0025] A loop calculation is performed based on the duty cycle fence value and the power parameter information set to determine the second parameter, which is a duty cycle parameter.

[0026] In a second aspect, an embodiment of the present application provides a power supply control device, which is applied to a control module of a target circuit, wherein the target circuit further includes a power supply module, a conversion module, and a load module connected in sequence, and the control module is used to control the conversion module; the device includes:

[0027] an acquisition module, configured to acquire a first parameter, where the first parameter is a parameter of the power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module;

[0028] a first determining module, configured to determine a control mode based on the first parameter and a preset power threshold, and to obtain an electrical information set, the electrical information set including electrical parameter information of a plurality of the conversion modules and / or the power supply modules;

[0029] a second determining module, configured to determine a duty cycle fence value based on the control mode, a preset power threshold, and an electrical information set, wherein the duty cycle fence value is used to control the conversion module;

[0030] a third determining module, configured to determine a second parameter based on the duty cycle fence value, wherein the second parameter is an electrical parameter for regulating the conversion module;

[0031] a power supply control module, configured to control the conversion module to supply power to the load module based on the second parameter, so that the power supplied to the load module with a third parameter is within a preset power threshold, wherein the third parameter is a power parameter supplied to the load module through the conversion module.

[0032] In a third aspect, an embodiment of the present application provides an electronic device comprising a processor, a memory, a communication interface, and one or more programs. The memory stores the one or more programs and is configured to be executed by the processor. When the processor executes the one or more programs stored in the memory, the processor executes instructions for some or all of the steps described in the first aspect of the embodiment of the present application.

[0033] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium on which a power supply control program is stored. The power supply control includes program instructions. When the processor of the electronic device executes the above-mentioned execution instructions, the processor executes some or all of the steps described in the first aspect.

[0034] In a fifth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a computer-readable storage medium storing a power supply control program, wherein the power supply control program is operable to cause a computer to execute some or all of the steps described in the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

[0035] By implementing the embodiments of the present application: obtaining a first parameter, the first parameter being the power parameter currently transmitted to the load module through the conversion module, and the first parameter being associated with the load module; determining a control mode based on the first parameter and a preset power threshold, and obtaining an electrical information set, the electrical information set including electrical parameter information of a plurality of the conversion modules and / or the power supply module; determining a duty cycle fence value based on the control mode, the preset power threshold and the electrical information set, the duty cycle fence value being used to control the conversion module; determining a second parameter based on the duty cycle fence value, the second parameter being the electrical parameter used to control the conversion module; controlling the conversion module to supply power to the load module based on the second parameter so that the power transmitted to the load module with a third parameter is within the preset power threshold, the third parameter being the power parameter transmitted to the load module through the conversion module; and realizing real-time determination of the duty cycle fence value based on the detected first parameter and further control of the conversion module based on the duty cycle fence value, thereby being able to quickly and stably output the current to the load module, reduce output overvoltage and overcurrent problems, and thereby reduce the occurrence of power supply or load damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the drawings required for use in the embodiments of the present invention or the background technology will be described below.

[0037] Figure 1 is a schematic structural diagram of a target circuit provided in an embodiment of the present application;

[0038] Figure 2 This is a flow chart of a power supply control method provided in an embodiment of the present application;

[0039] Figure 3 Schematic diagram of a preset power threshold value of a power supply control method provided in an embodiment of the present application;

[0040] Figure 4 This is a flow chart of another power supply control method provided in an embodiment of the present application;

[0041] Figure 5 This is a schematic structural diagram of a power supply control device provided in an embodiment of the present application;

[0042] Figure 6 This is a structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or electronic device comprising a series of steps or units is not limited to the listed steps or units, but may, in an optional example, also include steps or units not listed, or may, in an optional example, include other steps or units inherent to the process, method, product, or electronic device.

[0045] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] See also Figure 1 , Figure 1 is a schematic diagram of a target circuit structure provided by an embodiment of the present application, such as Figure 1 As shown, the target circuit 100 includes: a control module 110 , a power module 120 , a conversion module 130 and a load module 140 .

[0047] Among them, the control module 110 is used to control the conversion module 130 to regulate the power signal output by the power module 120, the load module 140 is connected to the conversion module 130, and the control module 110 is connected to the conversion module 130, which can be an electrical connection or a wireless connection. The control module 110 can be a separate module or can be coupled and embedded in the conversion module 130.

[0048] Specifically, the control module 110 can be an electronic device, which may include a terminal, a server, a processor, etc. The above examples are merely non-exhaustive and include, but are not limited to, the aforementioned electronic devices. The control module 110 can also be a single-chip microcomputer, a chip, an integrated circuit, a circuit component, etc., without limitation herein. The power module 120 can be a DC power supply, such as a DC plasma torch power supply, a battery, a DC generator, etc. In some cases, it can also be an AC power supply, such as an AC arc welding power supply, an AC motor, etc. The conversion module 130 can be a DC-DC conversion module, or in some cases, an AC-DC conversion module. For example, depending on whether the power module 120 is a DC power supply or an AC power supply, the conversion module 130 can be a DC-DC conversion module or an AC-DC conversion module. The load module 140 can be a linear load or a nonlinear load. A linear load refers to a load in which the voltage applied across the load and the current passing through the load have a linear relationship. A nonlinear load refers to a load in which the voltage across the load and the current passing through the load do not have a linear relationship. Some nonlinear loads have poor stability, and the load's impedance characteristics change with the external environment.

[0049] Based on this, the present application provides a power supply control method, device, storage medium and electronic device, and the present application is described in detail below with reference to the accompanying drawings.

[0050] See also Figure 2 , Figure 2 is a flow chart of a power supply control method provided in an embodiment of the present application, the method is applied to a control module of a target circuit, the target circuit further comprising a power supply module, a conversion module and a load module connected in sequence, the control module being used to control the conversion module; Figure 2 As shown, the method includes the following steps:

[0051] S210 , obtaining a first parameter, where the first parameter is a parameter of the power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module.

[0052] Among them, the first parameter is the output power parameter generated in the target circuit, that is, the power parameter transmitted by the power module to the load module through the conversion module. The association between the first parameter and the load module can be that the first parameter may have different degrees of random fluctuations due to different load types included in the load module or different situations.

[0053] Specifically, the first parameter may be a current parameter output to the load module, and in some possible cases may also be a voltage parameter output to the load module, which is not limited here, and the current parameter is used for illustration here.

[0054] The first parameter may be obtained through a sensor, an ammeter, a voltmeter, or through indirect calculation. Indirect calculation may be performed through analysis and calculation of other parameters such as resistance value. The method for obtaining the first parameter is not limited here.

[0055] S220: Determine a control mode based on the first parameter and a preset power threshold, and obtain an electrical information set, where the electrical information set includes electrical parameter information of a plurality of the conversion modules and / or the power supply modules.

[0056] The preset power threshold is used to determine the range of the first parameter and determine the control mode based on the range of the first parameter. The preset power threshold can be a preset current threshold, a preset voltage threshold, or other preset thresholds, depending on the data type of the first parameter. If the first parameter is current, the preset power threshold can be a preset current threshold; if the first parameter is voltage, the preset power threshold can be a preset voltage threshold. The control mode is used to constrain the specific content of the control of the conversion module. Different control modes may correspond to different control contents. The electrical information set includes electrical parameter information obtained from at least one of the conversion module and the power supply module, which can specifically be some current information, voltage information, device information, etc.

[0057] In a possible embodiment, the control mode includes a first control mode and a second control mode, the preset power threshold includes a first preset power threshold and a second preset power threshold, and the first preset power threshold is less than the second preset power threshold; the determination of the control mode and the electrical information set based on the first parameter and the preset power threshold includes: if the first parameter is lower than the first preset power threshold range, then the control mode is determined to be the first control mode, and the first control mode is used to quickly increase the power parameter supplied to the load module; if the first parameter is higher than the second preset power threshold range, then the control mode is determined to be the second control mode, and the second control mode is used to quickly reduce the power parameter supplied to the load module.

[0058] The control mode may include a first control mode and a second control mode, wherein the first control mode corresponds to a relationship between a first parameter and a preset power threshold, and the second control mode corresponds to a relationship between another first parameter and a preset power threshold. The preset power threshold may be one or more threshold ranges, including multiple threshold boundaries, and the multiple threshold boundaries may include a first preset power threshold and a second preset power threshold, wherein the first preset power threshold is less than the second preset power threshold. Specifically, when the first parameter is current, the preset power threshold is a current threshold, and the first preset power threshold and the second preset power threshold are also current thresholds.

[0059] Specifically, if the first parameter is lower than the first preset power threshold range, it means that the current first parameter is too low, and the corresponding matching is the first control mode, and the first control mode is entered. The first control mode is used to adjust the low first parameter so that the first parameter increases to a reasonable range. If the first parameter is higher than the second preset power threshold range, it means that the current first parameter is too high, and the corresponding matching is the second control mode, and the second control mode is entered. The second control mode is used to adjust the high first parameter so that the first parameter decreases to a reasonable range.

[0060] Among them, the preset power threshold can also include a preset reference power threshold, which can be a single reference value. The first preset power threshold and the second preset power threshold can be distributed on both sides of the preset reference power threshold. Specifically, they can be symmetrically distributed or asymmetrically distributed.

[0061] For details, please refer to Figure 3 , Figure 3 This is a schematic diagram of the preset power thresholds of a power supply control method provided in an embodiment of the present application. The preset power thresholds include a first preset power threshold I1 and a second preset power threshold I2, and may also include a third preset power threshold I3 and a fourth preset power threshold I4. The third preset power threshold is less than the fourth preset power threshold, and the third preset power threshold is greater than the first preset threshold, and the fourth preset power threshold is less than the second preset power threshold; the reasonable range may be a range greater than the third preset power threshold and less than the fourth preset power threshold. The third preset power threshold and the fourth preset power threshold may be distributed on both sides of the preset reference power threshold I5, specifically, they may be symmetrically distributed or asymmetrically distributed. The difference between the third preset power threshold and the first preset power threshold may be the same as or different from the difference between the fourth preset power threshold and the second preset power threshold, and is not limited here.

[0062] It can be seen that in this embodiment, the control mode is switched by the relationship between the first parameter and the preset power threshold, and the first parameter is regulated based on different situations, which is conducive to realizing real-time determination of the duty cycle fence value based on the detected first parameter and further regulation of the conversion module based on the duty cycle fence value, quickly and stably outputting the current to the load module, reducing the problems of output overvoltage and overcurrent, and thereby reducing the occurrence of power supply or load damage.

[0063] S230 , determining a duty cycle fence value based on the control mode, a preset power threshold, and an electrical information set, wherein the duty cycle fence value is used to control the conversion module.

[0064] Among them, the duty cycle fence value is used to regulate the conversion module so that the current or voltage output to the load module is within a reasonable range. In some cases, it can be so that the current or voltage output to the load module is within a range greater than the first preset power threshold and less than the third preset power threshold. In some cases, if there is a third preset power threshold and a fourth power threshold, it can be so that the current or voltage output to the load module is within a range greater than the third preset power threshold and less than the fourth preset power threshold.

[0065] Among them, the duty cycle fence value is a value calculated based on the parameters contained in the electrical information set and the preset power threshold, and corresponds to different calculation methods in different control modes.

[0066] In a possible embodiment, determining the duty cycle fence value based on the control mode, the preset power threshold and the electrical information set includes: if the control mode is the first control mode, determining the first duty cycle parameter and the second duty cycle parameter based on the electrical information set, and determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter; if the control mode is the second control mode, determining the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient based on the electrical information set and the preset power threshold, and determining the duty cycle fence value based on the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient.

[0067] Among them, if the control mode is the first control mode, that is, the current first parameter is less than the first preset power threshold, and the first parameter needs to be increased, the first duty cycle parameter and the second duty cycle parameter are determined based on the electrical information set, and then the duty cycle fence value is determined based on the first duty cycle parameter and the second duty cycle parameter; if the control mode is the second control mode, that is, the current first parameter is greater than the second preset power threshold, and the first parameter needs to be reduced, the first duty cycle parameter and the second duty cycle parameter are determined based on the electrical information set, the overcurrent coefficient is determined based on the electrical information set and the preset power threshold, and then the duty cycle fence value is determined based on the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient.

[0068] The first duty cycle can be the ideal duty cycle, and the second duty cycle can be the missing duty cycle. The ideal duty cycle is determined based on the circuit's theoretical model and desired output. The missing duty cycle refers to the difference between the actual duty cycle and the ideal duty cycle due to various non-ideal factors in the target circuit. The overcurrent factor can be the multiple by which the actual operating current exceeds the rated current.

[0069] Specifically, if the control mode is the first control mode, determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter includes: calculating the duty cycle fence value according to the following first formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes a duty cycle loss portion; if the control mode is the second control mode, determining the duty cycle fence value based on the first duty cycle parameter, the second duty cycle parameter, and the overcurrent coefficient includes: calculating the duty cycle fence value according to the following second formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes the duty cycle loss part, and K0 is the overcurrent coefficient.

[0070] Among them, the electrical information set includes the transformation module parameters of the transformation module and the power module parameters of the power module, and the transformation module parameters include at least one of the following: transformer turns, resonant inductance, excitation inductance, switching frequency, dead zone duty cycle, and output voltage; the power module parameters include at least the bus voltage.

[0071] The conversion module further includes multiple modules, for example, a power factor correction module. When the control mode is the first control mode, determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter includes calculating the duty cycle fence value according to the following first formula: ,in, and Calculated by the following third and fourth formulas respectively:

[0072] , ,

[0073] is the output voltage, is the bus voltage, and is the number of transformer turns, specifically, It can be the resonant inductance in the conversion module, It can be the number of turns on the secondary side of the transformer in the conversion module. is the output current, is the transformer in the conversion module, is the transformer excitation inductance in the conversion module, is the switching frequency, is the voltage of the power factor correction module in the conversion module, When the control mode is the second control mode, determining the duty cycle fence value based on the first duty cycle parameter, the second duty cycle parameter, and the overcurrent coefficient includes: calculating the duty cycle fence value according to the following second formula: ,in, and The calculation method can be the same as the third and fourth formulas, which will not be repeated here. Calculated by the following fifth formula:

[0074] .

[0075] It can be seen that in this embodiment, by performing the above calculations, it is possible to quickly identify current instability and quickly calculate the duty cycle fence value based on the specific numerical value of the instability, which can make the regulation more accurate and rapid. As a result, due to the rapid and stable output current to the load module, the problems of output overvoltage and overcurrent are reduced, and the occurrence of power supply or load damage is reduced.

[0076] S240: Determine a second parameter based on the duty cycle fence value, where the second parameter is an electrical parameter used to regulate the conversion module.

[0077] Among them, the second parameter is a parameter that can keep the power parameter output from the conversion module to the load module stable within a reasonable range. Specifically, the second parameter is determined based on the duty cycle fence value after regulation based on the duty cycle fence value.

[0078] In a possible embodiment, the duty cycle fence value is a duty cycle for regulation, and determining the second parameter based on the duty cycle fence value includes: controlling the conversion module to adjust the duty cycle based on the duty cycle fence value; detecting a fourth parameter, which is the power parameter transmitted to the load module through the conversion module after the duty cycle adjustment; detecting the relationship between the fourth parameter and the preset power threshold, and if the fourth parameter is within the range of the preset power threshold, determining the second parameter based on the duty cycle fence value and the loop calculation method.

[0079] In this case, the duty cycle is adjusted by controlling the conversion module based on the duty cycle fence value. Since the duty cycle fence value is the duty cycle, the duty cycle fence value can be used as the duty cycle of the conversion module for oscillation. Then, the power parameter transmitted from the conversion module to the load module, i.e., the fourth parameter, is continuously detected. The relationship between the fourth parameter and the preset power threshold is determined. The range of the preset power threshold can be within the reasonable range mentioned above, i.e., it can be a range greater than the third preset power threshold and less than the fourth preset power threshold, or it can be a range greater than the first preset power threshold and less than the second preset power threshold. When it is detected that the fourth parameter falls back into the range of the preset power threshold, the second parameter is further determined based on the duty cycle fence value. The second parameter is used for subsequent stable power output. The second parameter can be a parameter determined by loop calculation based on the duty cycle fence value.

[0080] It can be seen that in this embodiment, by determining the second parameter based on the calculated duty cycle fence value, the precise duty cycle can be determined, so that the output power drops back to a stable output, the accuracy and precision of the loop calculation are optimized, and the regulation can be further made more accurate and rapid. As a result, due to the rapid and stable output current to the load module, the problems of output overvoltage and overcurrent are reduced, and the occurrence of power supply or load damage is reduced.

[0081] In a possible embodiment, if the fourth parameter is within the range of the preset power threshold, determining the second parameter based on the duty cycle fence value includes: obtaining a power parameter information set, the power parameter information set including multiple power parameters when the fourth parameter is within the range of the preset power threshold; performing a loop calculation based on the duty cycle fence value and the power parameter information set to determine the second parameter, the second parameter being a duty cycle parameter.

[0082] The conversion module collects relevant feedback signals as a power parameter information set and feeds them back to the control module. The feedback signals may include the conversion module's output voltage and output current, representing the actual state of the conversion module's output. An appropriate loop control algorithm is selected based on the conversion module, such as proportional-integral-derivative (PID) control, voltage-mode control, or current-mode control, though these are not limited here. A new duty cycle, the second parameter, is then calculated based on the acquired power parameter information set and the loop.

[0083] It can be seen that in this embodiment, by determining the second parameter based on the calculated duty cycle fence value, the precise duty cycle can be determined, so that the output power drops back to a stable output, the accuracy and precision of the loop calculation are optimized, and the regulation can be further made more accurate and rapid. As a result, due to the rapid and stable output current to the load module, the problems of output overvoltage and overcurrent are reduced, and the occurrence of power supply or load damage is reduced.

[0084] S250, controlling the conversion module to supply power to the load module based on the second parameter so that the power supplied to the load module with a third parameter is within a preset power threshold, wherein the third parameter is a power parameter supplied to the load module through the conversion module.

[0085] After obtaining the new duty cycle, i.e., the second parameter, the control conversion module generates power based on the new duty cycle, i.e., supplies power to the load module at the new duty cycle. This ensures that the third parameter delivered to the load module remains relatively stable, i.e., within a preset power threshold. Specifically, this may be within the range of greater than the third preset power threshold and less than the fourth preset power threshold, or greater than the first preset power threshold and less than the second preset power threshold. The third parameter is the power parameter delivered after generating power at the new duty cycle, and may be either a current value or a voltage value.

[0086] For example, consider a DC plasma torch power supply module. This power supply is used in applications such as metal cutting, boiler ignition, and metal spraying, as well as for metal melting, smelting, and welding. AC power from the grid is rectified and converted to a DC voltage, which is then applied to the plasma load. The DC plasma torch power supply starts as follows: A high voltage is applied by the power supply, causing the gas between the load's two electrodes to break down, forming an arc. The high temperature and energy generated by the arc discharge cause gas molecules to collide and ionize, forming plasma. Because the amount of plasma generated by a single breakdown is too small, the arc extinguishes after a short time. The power supply then applies a high voltage, breaking down the gas between the load electrodes again. After multiple cycles, the amount of plasma increases, and the arc stabilizes. During startup, the load is short-circuited at the moment of electrode breakdown. After the arc extinguishes, the load is open-circuited. Therefore, during the arc ignition phase, the plasma torch power supply alternates between short-circuit and open-circuit conditions at a high frequency. During load fluctuations, the system detects whether the output current, or the first parameter, reaches a preset power threshold. For example, if the first parameter falls below the first preset power threshold, the system enters the first control mode, or if the first parameter rises above the second preset power threshold, the system enters the second control mode. The system then immediately adjusts the duty cycle of the conversion module from the loop calculation result to the duty cycle fence value, thereby achieving a rapid response. If the output current, or the first parameter, is not detected, the system does not enter the first or second control mode and generates a pulse according to the duty cycle calculated by the loop. If the system exits the first or second control mode, the duty cycle fence value is set to the initial value calculated by the loop.

[0087] It can be seen that in this embodiment, a first parameter is obtained, where the first parameter is a parameter of the power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module; a control mode is determined based on the first parameter and a preset power threshold, and an electrical information set is obtained, where the electrical information set includes electrical parameter information of multiple conversion modules and / or the power supply module; a duty cycle fence value is determined based on the control mode, the preset power threshold, and the electrical information set, where the duty cycle fence value is used to control the conversion module; a second parameter is determined based on the duty cycle fence value, where the second parameter is an electrical parameter used to control the conversion module; the conversion module is controlled to supply power to the load module based on the second parameter so that the power transmitted to the load module is within the preset power threshold with a third parameter, where the third parameter is a parameter of the power transmitted to the load module through the conversion module; and the duty cycle fence value is determined in real time based on the detected first parameter and further control of the conversion module based on the duty cycle fence value, so that the current output to the load module can be quickly and stabilized, reducing output overvoltage and overcurrent problems, and thereby reducing the occurrence of power supply or load damage.

[0088] See also Figure 4 and Figure 3 , Figure 4 is a flow chart of another power supply control method provided in an embodiment of the present application, wherein the method is applied to a control module of a target circuit, wherein the target circuit further comprises a power supply module, a conversion module and a load module connected in sequence, and the control module is used to control the conversion module; Figure 4 As shown, the method includes the following steps:

[0089] S410: Set a preset power threshold and obtain a first parameter.

[0090] After the system is started, the preset power threshold is set and the first parameter is obtained. The preset power threshold includes a first preset power threshold, a second preset power threshold, a third preset power threshold, a fourth preset power threshold and a preset reference power threshold.

[0091] S420, determining whether the difference between the preset reference power threshold and the first parameter is smaller than the difference between the preset reference power threshold and the first preset power threshold;

[0092] If yes, execute step S421, otherwise execute step S430. In some possible cases, it may also be determined whether the absolute value of the difference between the preset reference power threshold and the first parameter is smaller than the absolute value of the difference between the preset reference power threshold and the first preset power threshold.

[0093] S421, entering the first control mode, and determining the duty cycle fence value.

[0094] Among them, if it is the first control mode, the first duty cycle parameter and the second duty cycle parameter are determined based on the electrical information set, and the duty cycle fence value is determined based on the first duty cycle parameter and the second duty cycle parameter.

[0095] S422, controlling the conversion module to adjust the duty cycle based on the duty cycle fence value to obtain a fourth parameter;

[0096] S423 , determining whether the difference between the preset reference power threshold and the fourth parameter is smaller than the difference between the preset reference power threshold and the third preset power threshold.

[0097] If yes, execute step S442, otherwise execute step S422. In some possible cases, it may also be determined whether the absolute value of the difference between the preset reference power threshold and the fourth parameter is less than the absolute value of the difference between the preset reference power threshold and the third preset power threshold.

[0098] S430, determining whether the difference between the preset reference power threshold and the first parameter is greater than the difference between the preset reference power threshold and the second preset power threshold;

[0099] If yes, step S431 is executed, otherwise step S441 is executed. In some possible cases, it is also possible to determine whether the absolute value of the difference between the preset reference power threshold and the first parameter is greater than the absolute value of the difference between the preset reference power threshold and the second preset power threshold.

[0100] S431, entering the second control mode, and determining the duty cycle fence value.

[0101] Among them, if it is the second control mode, the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient are determined based on the electrical information set, and the duty cycle fence value is determined based on the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient.

[0102] S432, controlling the conversion module to adjust the duty cycle based on the duty cycle fence value to obtain a fourth parameter;

[0103] S433 , determining whether the difference between the preset reference power threshold and the fourth parameter is smaller than the difference between the preset reference power threshold and the fourth preset power threshold.

[0104] If yes, execute step S442, otherwise execute step S432. In some possible cases, it is also possible to determine whether the absolute value of the difference between the preset reference power threshold and the fourth parameter is less than the absolute value of the difference between the preset reference power threshold and the fourth preset power threshold.

[0105] S441, determining a second parameter based on the current duty cycle value and loop calculation.

[0106] The current duty cycle value is a duty cycle value when the duty cycle state of the conversion module is maintained when the first parameter exceeds the preset power threshold.

[0107] S442: Determine a second parameter based on the duty cycle fence value and loop calculation.

[0108] S450: Control the conversion module to supply power to the load module based on the second parameter.

[0109] It should be noted that the above mentioned content is Figure 2 All are described in the examples, please refer to Figure 2 The details are described in the embodiments and will not be repeated here.

[0110] It can be seen that in this embodiment, the duty cycle fence is set by obtaining the first parameter and judging the first parameter and the power threshold, that is, the second parameter is determined by loop calculation based on the duty cycle fence value, and then the duty cycle of the conversion module is adjusted based on the second parameter. This can achieve real-time determination of the duty cycle fence value based on the detected first parameter and further regulation of the conversion module based on the duty cycle fence value, which can quickly and stably output the current to the load module, reduce output overvoltage and overcurrent problems, and thereby reduce the occurrence of power supply or load damage.

[0111] See Figure 5 , Figure 5 : is a structural diagram of a power supply control device provided in an embodiment of the present application. The device is applied to a control module of a target circuit. The target circuit also includes a power supply module, a conversion module and a load module connected in sequence. The control module is used to control the conversion module. The power supply control device 500 includes: an acquisition module 510, a first determination module 520, a second determination module 530, a third determination module 540 and a power supply control module 550, wherein:

[0112] The acquisition module 510 is configured to acquire a first parameter, where the first parameter is a parameter of the power currently transmitted from the conversion module to the load module, and the first parameter is associated with the load module.

[0113] The first determination module 520 is configured to determine a control mode based on the first parameter and a preset power threshold, and to obtain an electrical information set, wherein the electrical information set includes electrical parameter information of a plurality of the conversion modules and / or the power supply modules.

[0114] The second determining module 530 is configured to determine a duty cycle fence value based on the control mode, the preset power threshold, and the electrical information set, wherein the duty cycle fence value is used to control the conversion module.

[0115] The third determination module 540 is configured to determine a second parameter based on the duty cycle fence value, where the second parameter is an electrical parameter used to regulate the conversion module.

[0116] The power supply control module 550 is used to control the conversion module to supply power to the load module based on the second parameter so that the power supplied to the load module with a third parameter is within a preset power threshold, and the third parameter is the power parameter supplied to the load module through the conversion module.

[0117] In a possible embodiment, the control mode includes a first control mode and a second control mode, the preset power threshold includes a first preset power threshold and a second preset power threshold, and the first preset power threshold is less than the second preset power threshold; the first determination module 520, in determining the control mode and the electrical information set based on the first parameter and the preset power threshold, is specifically configured to:

[0118] If the first parameter is lower than the first preset power threshold range, determining that the control mode is the first control mode, the first control mode is used to quickly increase the power parameter supplied to the load module;

[0119] If the first parameter is higher than the second preset power threshold range, the control mode is determined to be the second control mode, and the second control mode is used to quickly reduce the power parameter delivered to the load module.

[0120] In a possible embodiment, the second determining module 530 is specifically configured to:

[0121] If the control mode is the first control mode, determining a first duty cycle parameter and a second duty cycle parameter based on the electrical information set, and determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter;

[0122] If the control mode is the second control mode, the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient are determined based on the electrical information set and the preset power threshold, and the duty cycle fence value is determined based on the first duty cycle parameter, the second duty cycle parameter and the overcurrent coefficient.

[0123] Wherein, if the control mode is the first control mode, determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter includes:

[0124] The duty cycle fence value is calculated according to the following first formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, wherein the second duty cycle parameter includes a duty cycle loss portion;

[0125] If the control mode is the second control mode, determining the duty cycle fence value based on the first duty cycle parameter, the second duty cycle parameter, and the overcurrent coefficient includes:

[0126] The duty cycle fence value is calculated according to the following second formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes the duty cycle loss part, and K0 is the overcurrent coefficient.

[0127] Among them, the electrical information set includes the transformation module parameters of the transformation module and the power module parameters of the power module, and the transformation module parameters include at least one of the following: transformer turns, resonant inductance, excitation inductance, switching frequency, dead zone duty cycle, and output voltage; the power module parameters include at least the bus voltage.

[0128] In a possible embodiment, the duty cycle fence value is a duty cycle for regulation, and the third determination module 540 is specifically configured to:

[0129] Controlling the conversion module to adjust the duty cycle based on the duty cycle fence value;

[0130] detecting a fourth parameter, where the fourth parameter is a parameter of the power transmitted to the load module through the conversion module after the duty cycle is adjusted;

[0131] A relationship between the fourth parameter and the preset power threshold is detected, and if the fourth parameter is within a range of the preset power threshold, the second parameter is determined based on the duty cycle fence value and a loop calculation method.

[0132] In a possible embodiment, the duty cycle fence value is a duty cycle for regulation. When the fourth parameter is within the range of the preset power threshold, the third determination module 540 is specifically configured to:

[0133] Acquire a power parameter information set, the power parameter information set including a plurality of power parameters when the fourth parameter is within a range of the preset power threshold;

[0134] A loop calculation is performed based on the duty cycle fence value and the power parameter information set to determine the second parameter, which is a duty cycle parameter.

[0135] It is worth noting that the specific functional implementation of the power supply control device can be found in the above Figure 2 The description of the power supply control method shown in FIG. 5 is for example the acquisition module 510 for implementing the relevant content of executing S210. The various units or modules in the power supply control device 500 can be individually or completely combined into one or several other units or modules to form a structure, or one (or some) of the units or modules can be further divided into multiple functionally smaller units or modules to form a structure, which can achieve the same operation without affecting the realization of the technical effects of the embodiments of the present invention. The above-mentioned units or modules are divided based on logical functions. In actual applications, the functions of one unit (or module) are implemented by multiple units (or modules), or the functions of multiple units (or modules) are implemented by one unit (or module).

[0136] It can be seen that the power supply control device described in the embodiment of the present application obtains a first parameter, where the first parameter is a parameter of the power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module; determines a control mode based on the first parameter and a preset power threshold, and obtains an electrical information set, where the electrical information set includes electrical parameter information of multiple conversion modules and / or the power module; determines a duty cycle fence value based on the control mode, the preset power threshold, and the electrical information set, where the duty cycle fence value is used to control the conversion module; determines a second parameter based on the duty cycle fence value, where the second parameter is an electrical parameter used to control the conversion module; controls the conversion module to supply power to the load module based on the second parameter so that the power transmitted to the load module is within the preset power threshold with a third parameter, where the third parameter is a parameter of the power transmitted to the load module through the conversion module; and realizes real-time determination of the duty cycle fence value based on the detected first parameter and further control of the conversion module based on the duty cycle fence value, thereby being able to quickly stabilize the current output to the load module, reduce output overvoltage and overcurrent problems, and thereby reduce the occurrence of power supply or load damage.

[0137] See also Figure 6 , Figure 6 This is a structural diagram of an electronic device provided in an embodiment of the present application. As shown in the figure, the electronic device 600 includes a processor 610, a memory 620, a communication interface 630 and one or more programs 621. The one or more programs 621 are stored in the memory 620 and are configured to be executed by the processor 610.

[0138] The processor 610, the memory 620, and the communication interface 630 are interconnected and perform communication between them.

[0139] The memory 620 may be a volatile memory such as a dynamic random access memory (DRAM) or a non-volatile memory such as a mechanical hard disk. The memory 620 is used to store a set of executable program codes, and the processor 610 is used to call one or more programs 621 stored in the memory 620 to execute some or all of the steps of the power supply control method described in the above embodiment.

[0140] Among them, the electronic device 600 may include smart phones (such as Android phones, iOS phones, Windows Phone phones, etc.), tablet computers, PDAs, driving recorders, vehicle-mounted electronic devices, servers, laptops, mobile Internet electronic devices (MID, Mobile Internet Devices) or wearable electronic devices (such as smart watches, Bluetooth headsets), etc. The above are only examples and not exhaustive, including but not limited to the above electronic devices.

[0141] It can be seen that the electronic device obtains a first parameter, which is a parameter of the power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module; determines a control mode based on the first parameter and a preset power threshold, and obtains an electrical information set, wherein the electrical information set includes electrical parameter information of multiple conversion modules and / or the power supply module; determines a duty cycle fence value based on the control mode, the preset power threshold and the electrical information set, and the duty cycle fence value is used to control the conversion module; determines a second parameter based on the duty cycle fence value, and the second parameter is an electrical parameter used to control the conversion module; controls the conversion module to supply power to the load module based on the second parameter so that the power transmitted to the load module is within the preset power threshold with a third parameter, and the third parameter is the power parameter transmitted to the load module through the conversion module; realizes real-time determination of the duty cycle fence value based on the detected first parameter and further control of the conversion module based on the duty cycle fence value, so as to quickly stabilize the current output to the load module, reduce output overvoltage and overcurrent problems, and thereby reduce the occurrence of power supply or load damage.

[0142] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method described in the above method embodiments, and the above computer includes an electronic device.

[0143] The present application also provides a computer program product comprising a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments. The computer program product may be a software installation package, and the computer may comprise an electronic device.

[0144] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0145] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0146] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0147] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0148] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0149] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory and includes a number of instructions for enabling a computer electronic device (which can be a personal computer, electronic device, or network electronic device, etc.) to execute all or part of the steps of the above-mentioned methods in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program code.

[0150] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments can be completed by a program instructing related hardware. The program can be stored in a computer-readable memory, which may include a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0151] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A power supply control method, characterized in that: A control module applied to a target circuit, wherein the target circuit further comprises a power module, a conversion module, and a load module connected in sequence, wherein the control module is used to control the conversion module; and the method comprises: Acquire a first parameter, where the first parameter is a parameter of power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module; Determine a control mode based on the first parameter and a preset power threshold, and obtain an electrical information set, the electrical information set including electrical parameter information of a plurality of the conversion modules and / or the power module; wherein the control mode includes a first control mode and a second control mode; the electrical information set includes conversion module parameters of the conversion module and power module parameters of the power module, the conversion module parameters including at least one of the following: number of transformer turns, resonant inductance, excitation inductance, switching frequency, dead zone duty cycle, and output voltage; the power module parameters include at least bus voltage; Determining a duty cycle fence value based on the control mode, the preset power threshold, and the electrical information set, where the duty cycle fence value is used to control the conversion module; wherein, if the control mode is the first control mode, determining a first duty cycle parameter and a second duty cycle parameter based on the electrical information set, and determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter, includes: calculating the duty cycle fence value according to the following first formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes a duty cycle loss portion; if the control mode is the second control mode, determining the first duty cycle parameter, the second duty cycle parameter, and the overcurrent coefficient based on the electrical information set and the preset power threshold, and determining the duty cycle fence value based on the first duty cycle parameter, the second duty cycle parameter, and the overcurrent coefficient, including: calculating the duty cycle fence value according to the following second formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes the duty cycle loss part, and K0 is the overcurrent coefficient; and Calculated by the following third and fourth formulas respectively: , ,in, is the output voltage, is the bus voltage, and is the number of turns of the transformer, is the output current, is the transformer in the conversion module, is the transformer excitation inductance in the conversion module, is the switching frequency, is the voltage of the power factor correction module in the conversion module, is the dead zone duty cycle; determining a second parameter based on the duty cycle fence value, where the second parameter is an electrical parameter for regulating the conversion module; The conversion module is controlled to supply power to the load module based on the second parameter so that a third parameter supplied to the load module is within a preset power threshold, wherein the third parameter is a power parameter supplied to the load module through the conversion module.

2. The method according to claim 1, characterized in that The preset power threshold includes a first preset power threshold and a second preset power threshold, the first preset power threshold being smaller than the second preset power threshold; Determining the control mode based on the first parameter and the preset power threshold includes: If the first parameter is lower than the first preset power threshold range, determining that the control mode is the first control mode, the first control mode is used to quickly increase the power parameter supplied to the load module; If the first parameter is higher than the second preset power threshold range, the control mode is determined to be the second control mode, and the second control mode is used to quickly reduce the power parameter delivered to the load module.

3. The method according to any one of claims 1-2, characterized in that The duty cycle fence value is a duty cycle for regulation, and determining the second parameter based on the duty cycle fence value includes: Controlling the conversion module to adjust the duty cycle based on the duty cycle fence value; detecting a fourth parameter, where the fourth parameter is a parameter of the power transmitted to the load module through the conversion module after the duty cycle is adjusted; A relationship between the fourth parameter and the preset power threshold is detected, and if the fourth parameter is within a range of the preset power threshold, the second parameter is determined based on the duty cycle fence value and a loop calculation method.

4. The method according to claim 3, characterized in that If the fourth parameter is within the range of the preset power threshold, determining the second parameter based on the duty cycle fence value includes: Acquire a power parameter information set, the power parameter information set including a plurality of power parameters when the fourth parameter is within a range of the preset power threshold; A loop calculation is performed based on the duty cycle fence value and the power parameter information set to determine the second parameter, which is a duty cycle parameter.

5. A power supply control device, characterized in that: A control module applied to a target circuit, wherein the target circuit further includes a power module, a conversion module, and a load module connected in sequence, and the control module is used to control the conversion module; the device includes: an acquisition module, configured to acquire a first parameter, where the first parameter is a parameter of the power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module; a first determination module, configured to determine a control mode based on the first parameter and a preset power threshold, and to obtain an electrical information set, the electrical information set including electrical parameter information of a plurality of the conversion modules and / or the power module; wherein the control mode includes a first control mode and a second control mode; the electrical information set includes conversion module parameters of the conversion module and power module parameters of the power module, the conversion module parameters including at least one of the following: number of transformer turns, resonant inductance, excitation inductance, switching frequency, dead zone duty cycle, and output voltage; and the power module parameters including at least bus voltage; A second determination module is configured to determine a duty cycle fence value based on the control mode, a preset power threshold, and an electrical information set, wherein the duty cycle fence value is used to control the conversion module; wherein if the control mode is the first control mode, determining a first duty cycle parameter and a second duty cycle parameter based on the electrical information set, and determining the duty cycle fence value based on the first duty cycle parameter and the second duty cycle parameter, comprises: calculating the duty cycle fence value according to the following first formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes a duty cycle loss portion; if the control mode is the second control mode, determining the first duty cycle parameter, the second duty cycle parameter, and the overcurrent coefficient based on the electrical information set and the preset power threshold, and determining the duty cycle fence value based on the first duty cycle parameter, the second duty cycle parameter, and the overcurrent coefficient, including: calculating the duty cycle fence value according to the following second formula: , wherein D0 is the first duty cycle parameter, the first duty cycle parameter includes the ideal duty cycle, D loss is the second duty cycle parameter, the second duty cycle parameter includes the duty cycle loss part, and K0 is the overcurrent coefficient; and Calculated by the following third and fourth formulas respectively: , ,in, is the output voltage, is the bus voltage, and is the number of turns of the transformer, is the output current, is the transformer in the conversion module, is the transformer excitation inductance in the conversion module, is the switching frequency, is the voltage of the power factor correction module in the conversion module, is the dead zone duty cycle; a third determining module, configured to determine a second parameter based on the duty cycle fence value, wherein the second parameter is an electrical parameter for regulating the conversion module; a power supply control module, configured to control the conversion module to supply power to the load module based on the second parameter, so that the power supplied to the load module with a third parameter is within a preset power threshold, wherein the third parameter is a power parameter supplied to the load module through the conversion module.

6. A computer-readable storage medium, characterized in that A power supply control program is stored, including execution instructions. When a processor of the electronic device executes the execution instructions, the processor executes the method according to any one of claims 1 to 4.

7. An electronic device, characterized in that: The method comprises a processor and a memory storing execution instructions, wherein the memory stores one or more programs; when the processor executes the execution instructions stored in the memory, the processor executes the method according to any one of claims 1 to 4.

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