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

Abstract

The invention provides a power supply control method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining a first parameter which is an electric power parameter transmitted to a load module through a conversion module at present; determining a regulation and 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 regulation and control mode, a preset power threshold and the electrical information set, wherein the duty cycle fence value is used for regulating and controlling the conversion module; determining a second parameter based on the duty cycle fence value; the control conversion module supplies power to the load module based on the second parameter, so that the third parameter transmitted to the load module is within a preset power threshold; the duty ratio fence value is determined in real time based on the detected first parameter, further regulation and control of the conversion module are carried out based on the duty ratio fence value, the current output to the load module can be rapidly and stably output, the problems of output overvoltage and overcurrent are reduced, and the occurrence of power supply or load damage conditions is further reduced.

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] When the DC power supply is working, it not only supplies power to conventional linear loads such as motors, batteries, resistors, but also to nonlinear loads. Some nonlinear loads have poor stability, and the impedance characteristics of the load itself change with the external environment. This requires the DC power supply to maintain stable output when the load continues to fluctuate significantly. Conventional DC power supplies rely on traditional PID adjustment methods for adjustment, but it is difficult to adapt to high-frequency changes in the load: it will cause overcurrent to occur when the load is equivalent to a short circuit, which will cause damage to the power supply; when the load is equivalent to an open circuit, the output current cannot be maintained, resulting in arc extinguishing and output overvoltage.

[0003] Currently, for nonlinear loads, it is impossible to ensure that the output current is always in a stable state when the high-frequency load changes, and there is a problem that the output current cannot be quickly stabilized. 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: 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, wherein the electrical information set includes electrical parameter information of a plurality of the conversion modules and / or the power supply modules; Determining 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; Determining a second parameter based on the duty cycle fence value, wherein the second parameter is an electrical parameter used to regulate 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.

[0006] 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: 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 delivered 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.

[0007] 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 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; 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.

[0008] 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, and the first duty cycle parameter includes an 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, the 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, and the first duty cycle parameter includes an 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.

[0009] In a possible embodiment, the electrical information set includes transformation module parameters of the transformation module and 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 bus voltage.

[0010] 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, wherein the fourth parameter is a parameter of the electric power transmitted to the load module through the conversion module after the duty cycle is adjusted; The relationship between the fourth parameter and the preset power threshold is detected, and if the fourth parameter is within the range of the preset power threshold, the second parameter is determined based on the duty cycle fence value and the loop calculation method.

[0011] 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: Acquire a power parameter information set, the power parameter information set including a plurality of power parameters when the fourth parameter is within the 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, where the second parameter is a duty cycle parameter.

[0012] 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: An acquisition module, used for acquiring a first parameter, where the first parameter is a parameter of the electric 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, wherein the electrical information set includes electrical parameter information of a plurality of the transformation modules and / or the power supply module; a second determination 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; a third determination 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 is used to control the conversion module to supply power to the load module based on the second parameter so that the third parameter delivered to the load module is within a preset power threshold, and the third parameter is the power parameter delivered to the load module through the conversion module.

[0013] 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 of some or all of the steps described in the first aspect of the embodiment of the present application.

[0014] 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 part or all of the steps described in the first aspect.

[0015] In a fifth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a computer-readable storage medium storing a power supply control program, and 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 embodiment of the present application. The computer program product may be a software installation package.

[0016] By implementing the embodiment of the present application: obtaining a first parameter, the first parameter is the power parameter currently transmitted to the load module through the conversion module, and the first parameter is 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 multiple 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 is used to control the conversion module; determining a second parameter based on the duty cycle fence value, the second parameter is 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 is the power parameter transmitted to the load module through the conversion module; 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 stabilize the current output to the load module, reduce the problems of output overvoltage and overcurrent, and thereby reduce the occurrence of power supply or load damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 is a schematic diagram of a target circuit provided by an embodiment of the present application; Figure 2 It is a flowchart of a power supply control method provided in an embodiment of the present application; Figure 3 is a schematic diagram of a preset power threshold of a power supply control method provided in an embodiment of the present application; Figure 4 It is a flowchart of another power supply control method provided in an embodiment of the present application; Figure 5 It is a structural schematic diagram of a power supply control device provided in an embodiment of the present application; Figure 6 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or electronic device that includes a series of steps or units is not limited to the listed steps or units, but in an optional example also includes steps or units that are not listed, or in an optional example also includes other steps or units inherent to these processes, methods, products, or electronic devices.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] See also Figure 1 , Figure 1 is a schematic diagram of a target circuit provided in 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 transformation module 130 and a load module 140 .

[0023] 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.

[0024] Specifically, the control module 110 can be an electronic device, and the electronic device can include a terminal, a server, a processor, etc. The above is only an example, not an exhaustive list, including but not limited to the above electronic devices; the control module 110 can also be a single-chip microcomputer, a chip, an integrated circuit, a circuit composition, etc., which is not limited here. The power module 120 can be a DC power supply, for example, a DC plasma torch power supply, a battery, a DC generator, etc., and in some possible cases, it can also be an AC power supply or other power supplies, such as an AC arc welding machine power supply, an AC motor, etc. The conversion module 130 can be a DC-DC conversion module, and in some possible cases, it can also be an AC-DC conversion module. For example, according to the different situations where the power module 120 is a DC power supply or an AC power supply, the conversion module 130 can correspond to 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 when the voltage applied to both ends of the load is linearly related to the current passing through the load. A nonlinear load refers to a load when the voltage across the load and the current passing through the load are not linearly related. Some nonlinear loads have poor stability, and the impedance characteristics of the load itself change with the external environment.

[0025] 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 in conjunction with the accompanying drawings.

[0026] 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 is used to control the conversion module; Figure 2 As shown, the method comprises the following steps: S210, obtaining a first parameter, where the first parameter is a parameter of electric power currently transmitted to the load module through the conversion module, and the first parameter is associated with the load module.

[0027] 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.

[0028] 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 is described here with reference to the current parameter.

[0029] The first parameter may be obtained through a sensor, an ammeter, a voltmeter, or through indirect calculation. The indirect calculation may be performed by analyzing and calculating other parameters such as resistance value. The method for obtaining the first parameter is not limited herein.

[0030] S220, determining a control mode based on the first parameter and a preset power threshold, and acquiring 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.

[0031] Among them, the preset power threshold is used to determine the range of the first parameter, and the control mode is determined based on the range of the first parameter; the preset power threshold can be a preset current threshold or 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, and 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 module, which may specifically be some current information, voltage information, device information, etc.

[0032] 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 delivered 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 delivered to the load module.

[0033] Wherein, the control mode may include a first control mode and a second control mode, the first control mode corresponds to a relationship between a first parameter and a preset power threshold, and the second control mode corresponds to another relationship between a 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, and 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.

[0034] 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 match is the first control mode, and the first control mode is entered. The first control mode is used to adjust the first parameter that is too low 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 match is the second control mode, and the second control mode is entered. The second control mode is used to adjust the first parameter that is too high so that the first parameter decreases to a reasonable range.

[0035] 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.

[0036] For details, please refer to Figure 3 , Figure 3It is a schematic diagram of a preset power threshold of a power supply control method provided in an embodiment of the present application. The preset power threshold includes 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, wherein 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, and specifically, 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.

[0037] 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, so as to quickly and stably output the current to the load module, reduce the problems of output overvoltage and overcurrent, and thereby reduce the occurrence of power supply or load damage.

[0038] 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.

[0039] 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 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 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] The first duty cycle can be an ideal duty cycle, and the second duty cycle can be a duty cycle loss portion; the ideal duty cycle is a duty cycle determined based on the theoretical model of the circuit and the expected output; the duty cycle loss portion refers to the difference between the actual duty cycle and the ideal duty cycle in the target circuit due to the existence of various non-ideal factors. The overcurrent coefficient can be the multiple of the actual operating current exceeding its rated current.

[0044] 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, and the first duty cycle parameter includes an 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, the 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, and the first duty cycle parameter includes an 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.

[0045] Among them, the electrical information set includes transformation module parameters of the transformation module and 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, output voltage; the power module parameters include at least bus voltage.

[0046] Wherein, the conversion module also 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 third and fourth formulas as follows: , , 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 fifth formula: .

[0047] 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 values ​​of the instability, which can make the regulation more accurate and rapid. As a result, the current output to the load module is quickly and stably output, which reduces output overvoltage and overcurrent problems and reduces the occurrence of power supply or load damage.

[0048] S240, determining a second parameter based on the duty cycle fence value, where the second parameter is an electrical parameter used to regulate the conversion module.

[0049] 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.

[0050] 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 an electric power parameter transmitted to the load module through the conversion module after the duty cycle adjustment; detecting a 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 a loop calculation method.

[0051] Among them, 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 waving, and then the power parameter transmitted from the conversion module to the load module, that is, the fourth parameter, is continuously detected, and the relationship between the fourth parameter and the preset power threshold is determined. The range of the preset power threshold can be within the above-mentioned reasonable range, that is, 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 to the range of the above-mentioned 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.

[0052] 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.

[0053] 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.

[0054] Among them, the conversion module collects relevant feedback signals as a power parameter information set and feeds them back to the control module. The feedback signal may include the output voltage and output current of the conversion module, and the feedback signal represents the actual state of the current conversion module output. According to the conversion module, a suitable loop control algorithm is selected, such as a proportional-integral-differential (PID) control algorithm, voltage mode control, current mode control, etc., which are not limited here. Then, based on the acquired power parameter information set and the loop calculation, a new duty cycle, i.e., the second parameter, is obtained.

[0055] 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.

[0056] 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.

[0057] Among them, after obtaining the new duty cycle, that is, the second parameter, the control conversion module is waved based on the new duty cycle, that is, the load module is supplied with power at the new duty cycle, so that the third parameter delivered to the load module can be in a relatively stable state, that is, within the preset power threshold, specifically, it can be in the range greater than the third preset power threshold and less than the fourth preset power threshold, or it can be greater than the first preset power threshold and less than the second preset power threshold. The third parameter is the power parameter delivered after the wave is generated with the new duty cycle, which can be a current value or a voltage value.

[0058] For example, the power module is a DC plasma torch power supply, which is used in metal cutting, boiler ignition, metal spraying and other occasions, as well as metal melting, smelting and welding. The AC power input from the power grid generates a DC voltage through the rectification part and the DC-DC conversion part, which is added to the plasma load. The starting method of the DC plasma torch power supply is as follows: a high voltage is applied by the power supply to break down the gas between the two electrodes of the load to form an arc. The high temperature and high energy generated by the arc discharge cause the gas molecules to collide and ionize to form plasma. Since the amount of plasma generated by a single breakdown is too small, the arc goes out after a short time. Then the power supply continues to apply high voltage to break down the gas between the load electrodes again. After multiple cycles, the number of plasmas increases and the arc tends to be stable. During the startup process, the load is in a short-circuit state at the moment of electrode breakdown, and the load is in an open-circuit state after the arc is extinguished. Therefore, the load of the plasma torch power supply in the arc initiation stage is in a short-circuit and open-circuit state alternating with high frequency conversion. When the load fluctuates, the output current, i.e., the first parameter, is detected to see whether it reaches the preset power threshold. For example, if the first parameter is lower than the first preset power threshold range, the system enters the first control mode, or if the first parameter is higher than the second preset power threshold range, the system enters the second control mode. The duty cycle of the conversion module is immediately adjusted from the loop calculation result to the duty cycle fence value, thereby achieving the purpose of rapid response. If the output current, i.e., the first parameter, is not detected, the system does not enter the first control mode or the second control mode, and the system generates the wave according to the duty cycle calculated by the loop. If the system exits from the first control mode or the second control mode, the duty cycle fence value is set to the initial value calculated by the loop.

[0059] It can be seen that in this embodiment, a first parameter is obtained, the first parameter is the power parameter 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 the preset power threshold, and an electrical information set is obtained, 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, and the duty cycle fence value is used to control the conversion module; a second parameter is determined based on the duty cycle fence value, and 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, and the third parameter is the power parameter transmitted to the load module through the conversion module; the duty cycle fence value is determined in real time based on the detected first parameter and the conversion module is further regulated based on the duty cycle fence value, so that the current output to the load module can be quickly and stably stabilized, and the problems of output overvoltage and overcurrent can be reduced, thereby reducing the occurrence of power supply or load damage.

[0060] 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, the method is applied to a control module of a target circuit, the target circuit further comprising a power module, a conversion module and a load module connected in sequence, the control module being used to control the conversion module; Figure 4 As shown, the method comprises the following steps: S410, setting a preset power threshold and obtaining a first parameter.

[0061] 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.

[0062] S420, determining whether the difference between the preset reference power threshold and the first parameter is less than the difference between the preset reference power threshold and the first preset power threshold; If yes, execute step S421, if no, 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 less than the absolute value of the difference between the preset reference power threshold and the first preset power threshold.

[0063] S421, entering the first control mode and determining the duty cycle fence value.

[0064] 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.

[0065] S422, controlling the conversion module to adjust the duty cycle based on the duty cycle fence value to obtain a fourth parameter; 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.

[0066] If yes, execute step S442, otherwise execute step S422. 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 third preset power threshold.

[0067] 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; If yes, step S431 is executed, if no, 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.

[0068] S431, entering the second control mode and determining the duty cycle fence value.

[0069] 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.

[0070] S432, controlling the conversion module to adjust the duty cycle based on the duty cycle fence value to obtain a fourth parameter; 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.

[0071] If yes, execute step S442, if no, 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.

[0072] S441, determining a second parameter based on the current duty cycle value and loop calculation.

[0073] 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 a preset power threshold.

[0074] S442, determining a second parameter based on the duty cycle fence value and loop calculation.

[0075] S450: Control the conversion module to supply power to the load module based on the second parameter.

[0076] It should be noted that the above mentioned contents are Figure 2 All are described in the embodiments, please refer to Figure 2 The details are described in the embodiments and will not be repeated here.

[0077] It can be seen that in this embodiment, the duty cycle fence is set by acquiring 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. It is possible to determine the duty cycle fence value based on the detected first parameter in real time and further adjust 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.

[0078] See also Figure 5 , Figure 5 : is a structural schematic 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, The acquisition module 510 is used 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.

[0079] The first determination module 520 is used to determine the control mode based on the first parameter and the preset power threshold, and to obtain an electrical information set, wherein the electrical information set includes electrical parameter information of a plurality of the transformation modules and / or the power supply modules.

[0080] The second determination module 530 is used to determine a duty cycle fence value based on the control mode, a preset power threshold and an electrical information set, and the duty cycle fence value is used to control the conversion module.

[0081] The third determination module 540 is used 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.

[0082] 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 third parameter supplied to the load module is within a preset power threshold, and the third parameter is the power parameter supplied to the load module through the conversion module.

[0083] 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 used to: 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 delivered 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.

[0084] In a possible embodiment, the second determination module 530 is specifically used to determine the duty cycle fence value based on the control mode, the preset power threshold and the electrical information set: 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; 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.

[0085] 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: The duty cycle fence value is calculated according to the following first formula: , wherein D0 is the first duty cycle parameter, and the first duty cycle parameter includes an ideal duty cycle, D loss is the second duty cycle parameter, wherein 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: The duty cycle fence value is calculated according to the following second formula: , wherein D0 is the first duty cycle parameter, and the first duty cycle parameter includes an 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.

[0086] Among them, the electrical information set includes transformation module parameters of the transformation module and 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, output voltage; the power module parameters include at least bus voltage.

[0087] In a possible embodiment, the duty cycle fence value is a duty cycle for regulation, and the third determination module 540 is specifically used to determine the second parameter based on the duty cycle fence value: Controlling the conversion module to adjust the duty cycle based on the duty cycle fence value; detecting a fourth parameter, wherein the fourth parameter is a parameter of the electric power transmitted to the load module through the conversion module after the duty cycle is adjusted; The relationship between the fourth parameter and the preset power threshold is detected, and if the fourth parameter is within the range of the preset power threshold, the second parameter is determined based on the duty cycle fence value and the loop calculation method.

[0088] In a possible embodiment, the duty cycle fence value is a duty cycle for regulation, and the third determination module 540 determines the second parameter based on the duty cycle fence value if the fourth parameter is within the range of the preset power threshold, specifically for: Acquire a power parameter information set, the power parameter information set including a plurality of power parameters when the fourth parameter is within the 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, where the second parameter is a duty cycle parameter.

[0089] It is worth pointing out 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, for example, the acquisition module 510 is used to implement the relevant content of executing S210. The various units or modules in the power supply control device 500 can be respectively or completely combined into one or several other units or modules to constitute, or one (some) of the units or modules can be further divided into multiple functionally smaller units or modules to constitute, 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).

[0090] It can be seen that the power supply control device described in the embodiment of the present application obtains a first parameter, wherein the first parameter is the power parameter 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 module; determines 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; determines a second parameter based on the duty cycle fence value, wherein 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, wherein the third parameter is the power parameter transmitted to the load module through the conversion module; determines the duty cycle fence value based on the detected first parameter in real time and further controls the conversion module based on the duty cycle fence value, so that the current output to the load module can be quickly and stably output, and the problems of output overvoltage and overcurrent can be reduced, thereby reducing the occurrence of power supply or load damage.

[0091] See also Figure 6 , Figure 6 It 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.

[0092] The processor 610, the memory 620, and the communication interface 630 are connected to each other and perform communication work with each other; 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, and may execute some or all steps of the power supply control method described in the above embodiment.

[0093] 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.

[0094] It can be seen that the electronic device obtains a first parameter, the first parameter is the power parameter 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, 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; determines the duty cycle fence value based on the detected first parameter in real time and further controls the conversion module based on the duty cycle fence value, so that the current output to the load module can be quickly and stably output, reduce the problems of output overvoltage and overcurrent, and thus reduce the occurrence of power supply or load damage.

[0095] 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, wherein 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.

[0096] The embodiment of the present application also provides a computer program product, the computer program product includes a non-transitory computer-readable storage medium storing a computer program, the computer program is operable to cause a computer to execute some or all of the steps of any method described in the method embodiment. The computer program product may be a software installation package, and the computer includes an electronic device.

[0097] 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 the present application is not limited by the described order of actions, because according to the present 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 the present application.

[0098] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0099] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, 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.

[0100] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0101] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0102] 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 is essentially or the part that contributes to the prior art 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, including a number of instructions to enable a computer electronic device (which can be a personal computer, electronic device or network electronic device, etc.) to perform 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, disk or optical disk and other media that can store program codes.

[0103] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructing related hardware through a program, and the program may 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, etc.

[0104] The embodiments of the present application are introduced in detail above. Specific examples are used in this article 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 general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method 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, and the control module is used to control the conversion module; 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, wherein the electrical information set includes electrical parameter information of a plurality of the conversion modules and / or the power supply modules; Determining 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; Determining a second parameter based on the duty cycle fence value, wherein the second parameter is an electrical parameter used to regulate 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 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 determining of the control mode and the electrical information set based on the first parameter and the preset power threshold comprises: 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 delivered 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 claim 2, characterized in that 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 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; 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.

4. The method according to claim 3, characterized in that 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: The duty cycle fence value is calculated according to the following first formula: , wherein D0 is the first duty cycle parameter, and the first duty cycle parameter includes an ideal duty cycle, D loss is the second duty cycle parameter, wherein 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: The duty cycle fence value is calculated according to the following second formula: , wherein D0 is the first duty cycle parameter, and the first duty cycle parameter includes an 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.

5. The method according to claim 4, characterized in that 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, and output voltage; the power module parameters include at least bus voltage.

6. The method according to any one of claims 1 to 5, 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, wherein the fourth parameter is a parameter of the electric power transmitted to the load module through the conversion module after the duty cycle is adjusted; The relationship between the fourth parameter and the preset power threshold is detected, and if the fourth parameter is within the range of the preset power threshold, the second parameter is determined based on the duty cycle fence value and the loop calculation method.

7. The method according to claim 6, 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 the 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, where the second parameter is a duty cycle parameter.

8. A power supply control device, 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, and the control module is used to control the conversion module; the device comprises: An acquisition module, used for acquiring a first parameter, where the first parameter is a parameter of the electric 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, wherein the electrical information set includes electrical parameter information of a plurality of the transformation modules and / or the power supply module; a second determination 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; a third determination 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 is used to control the conversion module to supply power to the load module based on the second parameter so that the third parameter delivered to the load module is within a preset power threshold, and the third parameter is the power parameter delivered to the load module through the conversion module.

9. 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 as claimed in any one of claims 1 to 7.

10. An electronic device, characterized in that: It 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 7.

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