Auxiliary power supply control method, device, equipment, uninterruptible power supply and medium

Abstract

The present invention provides a method, device, equipment, uninterruptible power supply and medium for controlling power supply of an auxiliary power supply, wherein the method alternately switches the power supply mode of the auxiliary power supply according to a preset switching mode when a fan of the uninterruptible power supply fails; wherein the preset switching mode is a switching mode that makes the power of the battery not less than a preset over-discharge amount. By using a charging board and a battery to alternately supply power to the auxiliary power supply when the fan fails, and when the charging board supplies power to the auxiliary power supply, the charging board can charge the battery in the same direction, thereby effectively avoiding over-discharge of the battery while ensuring that the internal temperature of the uninterruptible power supply is not too high.

Description

Technical Field

[0001] The present invention belongs to the technical field of power equipment control, and in particular relates to an auxiliary power supply control method, device, equipment, uninterruptible power supply and medium. Background Art

[0002] Uninterruptible Power System (UPS) is a device that contains an energy storage device and an inverter as its main component. It is mainly used to provide a constant voltage, constant frequency and uninterrupted power supply to a single computer, a computer network system or other power control equipment. The auxiliary power supply in the UPS usually has two power supply modes: AC power supply and battery power supply. When the auxiliary power supply is operating normally, the AC power supply is generally provided by a charging board. However, when the UPS fan fails, if the charging board continues to supply power, the internal temperature of the auxiliary power supply will rise too high, damaging the equipment.

[0003] In the prior art, when the fan of the UPS fails, the UPS is generally shut down to protect the equipment in the UPS. In some specific scenarios, the UPS is required not to be shut down, so the auxiliary power supply must be guaranteed to work continuously. In the prior art, the auxiliary power supply can be powered by the battery equipped in the UPS, but long-term power supply can easily lead to over-discharge of the battery and reduce the battery life. Summary of the invention

[0004] In view of this, the present invention provides an auxiliary power supply control method, device, equipment, uninterruptible power supply and medium, aiming to solve the problem of short life of batteries equipped in UPS due to over-discharge in the prior art.

[0005] The first aspect of an embodiment of the present invention provides an auxiliary power supply control method, which is applied to an uninterruptible power supply; the uninterruptible power supply includes a main power unit and an auxiliary power unit; the main power unit and the auxiliary power unit are both powered by AC power; the auxiliary power unit includes a fan unit, an auxiliary power supply, a charging board and a battery; the charging board is connected to the AC power; the power supply mode of the auxiliary power supply includes a charging board power supply mode and a battery power supply mode; the battery is charged through the charging board; the fan unit is used to dissipate heat from the auxiliary power unit.

[0006] The method includes:

[0007] When the fan unit of the uninterruptible power supply fails, the power supply mode of the auxiliary power supply is alternately switched according to a preset switching method; wherein the preset switching method is a switching method that ensures that the battery power is not less than a preset over-discharge amount.

[0008] The second aspect of an embodiment of the present invention provides an auxiliary power supply control device, which is applied to an uninterruptible power supply; the uninterruptible power supply includes a main power unit and an auxiliary power unit; the main power unit and the auxiliary power unit are both powered by AC power; the auxiliary power unit includes a fan unit, an auxiliary power supply, a charging board and a battery; the charging board is connected to the AC power; the power supply mode of the auxiliary power supply includes a charging board power supply mode and a battery power supply mode; the battery is charged through the charging board; the fan unit is used to dissipate heat from the auxiliary power unit.

[0009] The device includes:

[0010] The control module is used to alternately switch the power supply mode of the auxiliary power supply according to a preset switching method when the fan unit of the uninterruptible power supply fails; wherein the preset switching method is a switching method that makes the battery power not less than a preset over-discharge amount.

[0011] A third aspect of an embodiment of the present invention provides a control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the auxiliary power supply control method of the first aspect above are implemented.

[0012] A fourth aspect of the embodiments of the present invention provides an uninterruptible power supply, comprising: the control device of the third aspect above.

[0013] A fifth aspect of an embodiment of the present invention provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the auxiliary power supply control method of the first aspect above are implemented.

[0014] The auxiliary power supply control method, device, equipment, uninterruptible power supply and medium provided by the embodiments of the present invention, wherein the method alternately switches the power supply mode of the auxiliary power supply according to a preset switching mode when the fan of the uninterruptible power supply fails; wherein the preset switching mode is a switching mode that makes the battery power not less than a preset over-discharge amount. By using the charging board and the battery to alternately supply power to the auxiliary power supply when the fan fails, and when the charging board supplies power to the auxiliary power supply, the charging board can charge the battery in the same direction, thereby effectively avoiding over-discharge of the battery while ensuring that the internal temperature of the uninterruptible power supply is not too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1is a schematic diagram of the structure of an uninterruptible power supply provided by an embodiment of the present invention;

[0017] Figure 2 is a flow chart of an implementation of an auxiliary power supply control method provided by an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the auxiliary power supply control device provided by the embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of a control device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0021] Figure 1 Schematic diagram of the structure of the uninterruptible power supply provided by the embodiment of the present invention. Figure 1 As shown, the uninterruptible power supply includes a main power unit 11 and an auxiliary power unit 12, both of which are powered by AC power; the auxiliary power unit 12 includes an auxiliary power supply 121, a charging plate 122, a battery 123, a control device 124, and a fan unit 125; the charging plate 122 is connected to the AC power; the power supply mode of the auxiliary power supply 121 includes a charging plate power supply mode and a battery power supply mode; the battery 122 is charged through the charging plate 121; and the fan unit 125 is used to dissipate heat for the auxiliary power unit 12.

[0022] In an embodiment of the present invention, the auxiliary power supply 121 may be a DC-DC conversion module. The charging board 122 may be an AC-DC conversion module. The battery 123 may be a single battery or a battery pack composed of multiple batteries, which is not limited here. The control device 124 may be a single chip microcomputer, an MCU, a computer, etc., which is not limited here. The fan unit 125 may be a single fan or a unit composed of multiple fans, which is not limited here. The fan in the fan unit 125 is an AC fan, which is powered by AC power. The main power unit 11 has its own dedicated heat dissipation module, and the failure of the fan unit 125 will not affect it.

[0023] The control device 124 is used to monitor the current of the auxiliary power supply 121, the charging plate 122, and the battery 123 and control the switching of the working mode of the auxiliary power supply 121. When the working mode is switched, the charging plate 121 and the battery 123 can be controlled at the same time, for example, the charging plate 121 is turned off and the switch of the battery 123 is turned on, so that the power supply mode of the auxiliary power supply 121 is switched from the charging plate power supply mode to the battery power supply mode; or only the charging plate 121 can be controlled, for example, when there is no switch on the battery 123, the charging plate is turned on, and since the output voltage of the charging plate is high, the battery 123 and the auxiliary power supply 121 will be automatically powered, and the charging plate is closed, the battery 123 automatically powers the auxiliary power supply 121.

[0024] Figure 2 FIG. 1 is a flow chart of an implementation of the auxiliary power supply control method provided by an embodiment of the present invention. Figure 2 As shown, the auxiliary power supply control method is applied to Figure 1 The uninterruptible power supply shown in the embodiment of the present invention comprises:

[0025] S210, when the fan unit of the uninterruptible power supply fails, the power supply mode of the auxiliary power supply is alternately switched according to a preset switching method; wherein the preset switching method is a switching method that makes the battery power not less than a preset over-discharge amount.

[0026] In the embodiment of the present invention, the fan failure of the uninterruptible power supply does not only mean that the fan fails to stop, but it may also mean that the fan is in operation but cannot effectively dissipate heat due to insufficient speed or software failure. When a fan failure is detected, in order to ensure the safe operation of the auxiliary power supply, the battery power supply mode is immediately switched to avoid excessive internal temperature of the uninterruptible power supply.

[0027] In the embodiment of the present invention, the charging board power supply mode can be switched to charge the battery at any time before the battery is over-discharged. However, after switching to the charging board power supply mode, in order to avoid UPS shutdown due to overheating, the battery power supply mode should be switched back after a period of time.

[0028] In an embodiment of the present invention, when the fan of the uninterruptible power supply fails, the method alternately switches the power supply mode of the auxiliary power supply according to a preset switching mode; wherein the preset switching mode is a switching mode that makes the power of the battery not less than a preset over-discharge amount. By using the charging board and the battery to alternately supply power to the auxiliary power supply when the fan fails, and when the charging board supplies power to the auxiliary power supply, the charging board can charge the battery in the same direction, thereby effectively avoiding over-discharge of the battery while ensuring that the internal temperature of the uninterruptible power supply is not too high.

[0029] In some embodiments, S220 may include: when the power supply mode of the auxiliary power supply is a battery power supply mode, after a preset time interval, the power supply mode of the auxiliary power supply is switched from the battery power supply mode to the charging board power supply mode; when the power supply mode of the auxiliary power supply is a charging board power supply mode, after a first preset time length, the power supply mode of the auxiliary power supply is switched from the charging board power supply mode to the battery power supply mode; wherein the battery discharge capacity within the preset time interval is not greater than the battery charging capacity within the first preset time length.

[0030] In the embodiment of the present invention, the preset time interval is less than or equal to the full discharge time of the battery. The first preset time length can be the time length required for the battery to be fully charged, or the time length required for the temperature of the UPS to rise to near the shutdown temperature, which is not limited here.

[0031] In some embodiments, the auxiliary power supply control method further includes: determining a ratio of a first preset duration to a preset time interval based on a ratio of a charging current of a charging board to a current input to the auxiliary power supply.

[0032] In the embodiment of the present invention, when the ratio of the charging current of the charging board to the current input to the auxiliary power supply is k, the ratio of the first preset time length to the preset time interval is greater than or equal to 1 / (k-1).

[0033] In some embodiments, the ratio of the first preset time length to the preset time interval is determined based on the ratio of the charging current of the charging plate and the current input to the auxiliary power supply, including: when the ratio of the charging current of the charging plate and the current input to the auxiliary power supply is k, the ratio of the first preset time length to the preset time interval is set to 1 / (k-1).

[0034] In the embodiment of the present invention, the ratio of the charging current of the charging plate to the current input to the auxiliary power supply is k, that is, the power ratio of the charging plate to the auxiliary power supply is k, that is, assuming that the power of the charging plate is k watts per second, the power of the auxiliary power supply is 1 watt per second, and the charging power of the battery is k-1 watt per second. At this time, the first preset time length can be set to 30 seconds or 1 minute, and the corresponding preset time interval is set to 30 (k-1) seconds or 60 (k-1) seconds. At this time, within the preset time interval, the battery is in a discharging state, and the discharge power is 30 (k-1) * 1 watt. The battery is in a charging state within the first preset time length, and the charging power is 30 * (k-1) watts. It can be concluded that under the above settings, the battery charging power within each first preset time length is equal to the battery discharging power within the preset time interval, and the charge and discharge are balanced, which can avoid over-discharge of the battery.

[0035] In some embodiments, the auxiliary power supply control method further includes: obtaining the current ambient temperature; determining a ratio adjustment coefficient according to the current ambient temperature; and adjusting the ratio of the first preset duration to the preset time interval according to the ratio adjustment coefficient.

[0036] In the previous embodiment, in order to prevent the battery from being over-discharged, a charge-discharge balance control method was set. However, in some cases, it is not necessary to ensure charge-discharge balance.

[0037] For example, when the ambient temperature is low, even if the fan fails, the time required for the UPS to heat up to the shutdown temperature will be relatively long. Therefore, the charging time of the charging board can be appropriately increased, that is, the duration of one switching cycle is increased (i.e., the duration from the charging board power supply mode switching to the battery power supply mode and then switching back to the charging board power supply mode), thereby effectively reducing the number of switches and avoiding the impact of frequent switching on the auxiliary power supply, ensuring the stable operation of the auxiliary power supply.

[0038] When the ambient temperature is high, the time required for the UPS to heat up to the shutdown temperature will be relatively short. Since it is necessary to give priority to ensuring the stable operation of the auxiliary power supply, the discharge time of the battery in each switching cycle can be slightly extended. Although it may cause the battery to be over-discharged after several switching cycles, compared with the prior art where only the battery power supply mode is used, it can greatly extend the time to reach over-discharge, so it can also increase the service life of the battery.

[0039] Therefore, in the embodiments of the present invention, when the ambient temperature is low, a positive feedback ratio adjustment coefficient is calculated to make the ratio of the first preset duration to the preset time interval larger. When the ambient temperature is high, a negative feedback ratio adjustment coefficient is calculated to make the ratio of the first preset duration to the preset time interval smaller. For example, let the ambient temperature be T, the first adjustment temperature be T1, the second adjustment temperature be T2, T1 < T2, the ratio adjustment coefficient be λ, and the ratio of the first preset duration to the preset time interval be set to 1 / (k - 1). When T < T1, λ ∈ (1, 2) and the adjusted ratio = 1 / (k - 1) * λ, or λ ∈ (0, 1 / (k - 1)) and the adjusted ratio = 1 / (k - 1) + λ. When T > T1, λ ∈ (0, 1) and the adjusted ratio = 1 / (k - 1) * λ, or λ ∈ (-1 / (k - 1), 0) and the adjusted ratio = 1 / (k - 1) + λ.

[0040] In some embodiments, the fan unit includes multiple fans; the fan unit failure is partial fan failure or all fan failures. Correspondingly, the auxiliary power supply control method further includes: when the fan unit failure is partial fan failure, starting the fans that have not failed; and adjusting the ratio of the first preset duration to the preset time interval according to the number of started fans and the total number of fans.

[0041] In an embodiment of the present invention, if the total number of fans is C, the fan turned on is C1, and the ratio of the first preset duration to the preset time interval is set to 1 / (k-1), then the adjusted ratio is: [1 / (k-1)]*[C / (C-C1)].

[0042] When C1=0, that is, when all fans fail, the adjusted ratio is: 1 / (k-1)*1, maintaining the ratio in the above embodiment.

[0043] When C1>0, that is, some fans are faulty, as C1 increases, C / (C-C1) gradually increases, the corresponding first preset time length increases, and the preset time interval decreases, that is, the charging board is turned on for a longer time.

[0044] When C1=C, that is, all fans are normal, C-C1=0, C / (C-C1)→∞, and the adjusted ratio is: 1 / (k-1)*∞, that is, the charging board is always working and the battery is not working.

[0045] In some embodiments, in some embodiments, S220 may include: obtaining the operating temperature of the uninterruptible power supply; if the operating temperature is lower than a first preset temperature, switching the power supply mode of the auxiliary power supply from a battery power supply mode to a charging board power supply mode; if the operating temperature is higher than a second preset temperature, switching the power supply mode of the auxiliary power supply from a charging board power supply mode to a battery power supply mode; wherein the first preset temperature is lower than the second preset temperature; and the second preset temperature is lower than the shutdown temperature.

[0046] In an embodiment of the present invention, when the operating temperature is lower than the first preset temperature, it is considered that there is no risk of shutdown, so it can be switched to the charging board power supply mode; when the operating temperature is higher than the second preset temperature, there is a greater risk of shutdown, so it is switched to the battery power supply mode; when the temperature is between the first preset temperature and the second preset temperature, power can be supplied according to the alternating power supply mode in the above embodiment.

[0047] In summary, the beneficial effects of the present invention are:

[0048] First, when the fan of the uninterruptible power supply fails, the power supply mode of the auxiliary power supply is switched from the charging board power supply mode to the battery power supply mode; then the power supply mode of the auxiliary power supply is switched alternately between the charging board power supply mode and the battery power supply mode according to a preset switching method, wherein the preset switching method is used to ensure that the battery is not over-discharged. By using the charging board and the battery to alternately supply power to the auxiliary power supply when the fan fails, and when the charging board supplies power to the auxiliary power supply, the charging board can charge the battery in the same direction, thereby effectively avoiding over-discharge of the battery while ensuring that the internal temperature of the uninterruptible power supply is not too high.

[0049] 2. The working time ratio of the charging board and the battery can be adjusted according to the ambient temperature, which can be adaptively changed according to the actual situation to avoid auxiliary power shutdown caused by overheating.

[0050] 3. By adaptively adjusting the working time of the charging board according to the fault conditions of the fan, the discharge time of the battery can be reduced when some fans fail, effectively avoiding over-discharge of the battery.

[0051] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0052] Figure 3 Schematic diagram of the structure of the auxiliary power supply control device provided by the embodiment of the present invention. Figure 3 As shown, the auxiliary power supply control device is used for Figure 1 The uninterruptible power supply shown in FIG. 1 includes:

[0053] The control module 310 is used to alternately switch the power supply mode of the auxiliary power supply according to a preset switching mode when the fan unit of the uninterruptible power supply fails; wherein the preset switching mode is a switching mode that makes the battery power not less than a preset over-discharge amount.

[0054] Optionally, the control module 310 is specifically configured to switch the power supply mode of the auxiliary power source from the battery power supply mode to the charging board power supply mode at every preset time interval, and switch to the battery power supply mode after a first preset time period.

[0055] Optionally, the auxiliary power supply control device also includes: a calculation module, used to determine the ratio of the first preset time length to the preset time interval based on the ratio of the charging current of the charging plate and the current input to the auxiliary power supply.

[0056] Optionally, the calculation module is specifically used to set the ratio of the first preset time length to the preset time interval to 1 / (k-1) when the ratio of the charging current of the charging plate to the current input to the auxiliary power supply is k.

[0057] Optionally, the calculation module is also used to obtain the current ambient temperature; determine the ratio adjustment coefficient according to the current ambient temperature; and adjust the ratio of the first preset duration to the preset time interval according to the ratio adjustment coefficient.

[0058] Optionally, the fan unit includes a plurality of fans; the fan unit failure is a partial fan failure or a full fan failure. Accordingly, the calculation module is further used to start the fans that have not failed when the fan unit failure is a partial fan failure; and adjust the ratio of the first preset duration to the preset time interval according to the number of fans that are started and the total number of fans.

[0059] Optionally, the control module 310 is specifically used to obtain the operating temperature of the uninterruptible power supply; if the operating temperature is less than a first preset temperature, the power supply mode of the auxiliary power supply is switched from a battery power supply mode to a charging board power supply mode; if the operating temperature is greater than a second preset temperature, the power supply mode of the auxiliary power supply is switched from a charging board power supply mode to a battery power supply mode. The first preset temperature is less than the second preset temperature; and the second preset temperature is less than the shutdown temperature.

[0060] The auxiliary power supply control device provided in this embodiment can be used to execute the above method embodiment. Its implementation principle and technical effect are similar, and this embodiment will not be repeated here.

[0061] Figure 4 Schematic diagram of the structure of the control device provided by the embodiment of the present invention. Figure 4 As shown, a control device 4 provided in one embodiment of the present invention includes: a processor 40, a memory 41, and a computer program 42 stored in the memory 41 and executable on the processor 40. When the processor 40 executes the computer program 42, the steps in the above-mentioned auxiliary power supply control method embodiments are implemented, for example Figure 2 Alternatively, when the processor 40 executes the computer program 42, the functions of each module / unit in the above-mentioned system embodiments are implemented, for example Figure 3 The functionality of module 310 is shown.

[0062] Exemplarily, the computer program 42 may be divided into one or more modules / units, one or more modules / units are stored in the memory 41, and are executed by the processor 40 to implement the present invention. One or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program 42 in the control device 4.

[0063] The control device 4 may be a mobile phone, MCU, ECU, etc., which is not limited here. The control device 4 may include, but is not limited to, a processor 40 and a memory 41. Those skilled in the art will understand that Figure 4 It is only an example of the control device 4 and does not constitute a limitation on the control device 4. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal may also include input and output devices, network access devices, buses, etc.

[0064] The processor 40 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0065] The memory 41 may be an internal storage unit of the control device 4, such as a hard disk or memory of the control device 4. The memory 41 may also be an external storage device of the control device 4, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the control device 4. Further, the memory 41 may also include both an internal storage unit and an external storage device of the control device 4. The memory 41 is used to store computer programs and other programs and data required by the terminal. The memory 41 may also be used to temporarily store data that has been output or is to be output.

[0066] An embodiment of the present invention provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in the auxiliary power supply control method embodiment are implemented.

[0067] The computer readable storage medium stores a computer program 42, which includes program instructions. When the program instructions are executed by the processor 40, all or part of the processes in the above-mentioned embodiment method are implemented. The computer program 42 can also be used to instruct the relevant hardware to complete. The computer program 42 can be stored in a computer readable storage medium. When the computer program 42 is executed by the processor 40, the steps of each of the above-mentioned method embodiments can be implemented. Among them, the computer program 42 includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electric carrier signal and telecommunication signal.

[0068] The computer-readable storage medium may be an internal storage unit of the terminal of any of the foregoing embodiments, such as a hard disk or memory of the terminal. The computer-readable storage medium may also be an external storage device of the terminal, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the terminal. Further, the computer-readable storage medium may also include both an internal storage unit of the terminal and an external storage device. The computer-readable storage medium is used to store computer programs and other programs and data required by the terminal. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

[0069] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0070] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0071] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0072] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0073] In the embodiments provided by the present invention, it should be understood that the disclosed devices / terminals and methods can be implemented in other ways. For example, the device / terminal embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and 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, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0074] The units described 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.

[0075] In addition, each functional unit in each embodiment of the present invention 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.

[0076] If the integrated module / 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 storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electric carrier signals and telecommunication signals.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A method for controlling an auxiliary power supply, characterized in that: Applicable to an uninterruptible power supply; the uninterruptible power supply comprises a main power unit and an auxiliary power unit; the main power unit and the auxiliary power unit are both powered by mains electricity; the auxiliary power unit comprises a fan unit, an auxiliary power supply, a charging board and a battery; the charging board is connected to the mains electricity; the power supply mode of the auxiliary power supply comprises a charging board power supply mode and a battery power supply mode; the battery is charged by the charging board, and when the charging board is powered by the auxiliary power supply, the charging board charges the battery; the fan unit is used to dissipate heat for the auxiliary power unit; the method comprises: When the fan unit of the uninterruptible power supply fails, the power supply mode of the auxiliary power supply is alternately switched according to a preset switching method; wherein the preset switching method is a switching method that makes the temperature of the auxiliary power supply lower than the shutdown temperature and makes the power of the battery not lower than the preset over-discharge amount.

2. The auxiliary power supply control method according to claim 1, characterized in that: The step of alternately switching the power supply mode of the auxiliary power supply between the charging board power supply mode and the battery power supply mode according to a preset switching mode includes: When the power supply mode of the auxiliary power source is the battery power supply mode, after a preset time interval, the power supply mode of the auxiliary power source is switched from the battery power supply mode to the charging board power supply mode; When the power supply mode of the auxiliary power source is the charging board power supply mode, after a first preset time period, the power supply mode of the auxiliary power source is switched from the charging board power supply mode to the battery power supply mode; Wherein, the battery discharge power within the preset time interval is not greater than the battery charge power within the first preset time period.

3. The auxiliary power supply control method according to claim 2, characterized in that: The method further comprises: The ratio of the first preset time length to the preset time interval is determined according to the ratio of the charging current of the charging plate to the current input to the auxiliary power supply.

4. The auxiliary power supply control method according to claim 3, characterized in that: The determining, according to the ratio of the charging current of the charging board to the current input to the auxiliary power supply, a ratio of the first preset time length to the preset time interval includes: When the ratio of the charging current of the charging plate to the current input to the auxiliary power supply is k, the ratio of the first preset time length to the preset time interval is set to 1 / (k-1).

5. The auxiliary power supply control method according to claim 3, characterized in that: The method further comprises: Get the current ambient temperature; Determining a ratio adjustment coefficient according to the current ambient temperature; The ratio of the first preset duration to the preset time interval is adjusted according to the ratio adjustment coefficient.

6. The auxiliary power supply control method according to claim 3, characterized in that: The fan unit includes a plurality of fans; the fan unit failure is a partial fan failure or a full fan failure; the method further includes: When the fan unit failure is a partial fan failure, starting the fans that have not failed; The ratio of the first preset duration to the preset time interval is adjusted according to the number of turned-on fans and the total number of fans.

7. The auxiliary power supply control method according to any one of claims 1 to 6, characterized in that: The step of alternately switching the power supply mode of the auxiliary power supply between the charging board power supply mode and the battery power supply mode according to a preset switching mode includes: Obtaining the operating temperature of the uninterruptible power supply; If the operating temperature is lower than a first preset temperature, switching the power supply mode of the auxiliary power supply from the battery power supply mode to the charging board power supply mode; If the operating temperature is not lower than a second preset temperature, switching the power supply mode of the auxiliary power supply from the charging plate power supply mode to the battery power supply mode; Among them, the first preset temperature is lower than the second preset temperature; the second preset temperature is lower than the shutdown temperature.

8. A control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the auxiliary power supply control method as described in any one of claims 1 to 7 are implemented.

9. An uninterruptible power supply, characterized in that: Comprising a control device as claimed in claim 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the auxiliary power supply control method as described in any one of claims 1 to 7 are implemented.

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