Control method, device, electronic device and readable storage medium of power supply system

Abstract

The present disclosure provides a control method, device and related equipment of a power supply system, which relates to the field of Internet of Things technology. The method is applied to a base station power supply system, which includes a control unit and a power storage device, a MOS tube, a controllable fuse and a load device connected in sequence; the first control end of the MOS tube and the second control end of the controllable fuse are both connected to the control unit, and the method includes: when the MOS tube is in an off state, collecting the first current value of the MOS tube based on the control unit; when the first current value is greater than 0, issuing a fuse instruction to the controllable fuse based on the control unit to blow the controllable fuse. By adding a controllable fuse to the base station power supply system, and when a short circuit is detected in the MOS tube, the controllable fuse is blown to disconnect the charging circuit or discharging circuit of the power storage device connected based on the MOS tube, the overcharging or over-discharging problem of the power storage device is avoided, thereby reducing the probability of fire of the power storage device.

Description

Technical Field

[0001] The present disclosure relates to the technical field of Internet of Things, and in particular to a control method, device, electronic device and readable storage medium of a power supply system. Background Art

[0002] Currently, a power storage device (eg, a storage battery or a retired battery) is usually provided in a power supply system of a base station to ensure power supply safety of the base station in the event of a city power outage.

[0003] At present, related technologies mostly complete the charge and discharge management of power storage devices by turning on or off MOS tubes. However, it is found in applications that when the MOS tube is damaged, a short circuit may occur in the MOS tube, which will cause the management of the charge and discharge circuit of the power storage device to be out of control and will create a greater fire hazard. Summary of the invention

[0004] The purpose of the embodiments of the present disclosure is to provide a control method, device, electronic device and readable storage medium for a power supply system, which are used to solve the technical problem that there is a great fire hazard in the power storage equipment of the base station.

[0005] In a first aspect, an embodiment of the present disclosure provides a control method for a power supply system, the method being applied to a base station power supply system, the base station power supply system comprising a power storage device, a MOS tube, a controllable fuse, a load device, and a control unit, the output end of the power storage device being connected to the input end of the MOS tube, the output end of the MOS tube being connected to the input end of the controllable fuse, the output end of the controllable fuse being connected to the load device, the first control end of the MOS tube and the second control end of the controllable fuse being connected to the control unit, the method comprising:

[0006] When the MOS tube is in an off state, collecting a first current value of the MOS tube based on the control unit;

[0007] When the first current value is greater than 0, a blowing instruction is issued to the controllable fuse based on the control unit, so that the controllable fuse blows.

[0008] In one embodiment, the acquisition time of the first current value is after the shut-off time of the MOS tube, and the time difference between the acquisition time and the shut-off time is greater than or equal to a preset time threshold.

[0009] In one embodiment, the method further comprises:

[0010] Based on the control unit, the operating current value and the operating voltage value of the power storage device are collected;

[0011] When the working current value is 0 and the working voltage value is greater than or equal to a preset voltage threshold, the fusing instruction is issued to the controllable fuse based on the control unit.

[0012] In one embodiment, before collecting the first current value of the MOS tube based on the control unit, the method further includes:

[0013] When the MOS tube is in an on state, collecting a temperature rise parameter of the MOS tube based on the control unit, wherein the temperature rise parameter is used to characterize a temperature increase rate of the MOS tube;

[0014] When the temperature rise parameter is greater than or equal to a preset temperature rise threshold, a shutdown instruction is sent to the MOS tube based on the control unit, so that the MOS tube is adjusted from the on state to the off state.

[0015] In one embodiment, the power storage device includes a plurality of battery cells, and the method further includes:

[0016] Based on the control unit collecting voltage data of each of the multiple battery cells, a plurality of voltage data are obtained, wherein the plurality of voltage data correspond to the multiple battery cells one by one;

[0017] Calculating the plurality of voltage data based on the control unit to obtain a target voltage difference, the target voltage difference being the difference between a maximum voltage and a minimum voltage, the maximum voltage being the voltage data with the largest value among the plurality of voltage data, and the minimum voltage being the voltage data with the smallest value among the plurality of voltage data;

[0018] When the target voltage difference is greater than or equal to a preset voltage difference threshold, the fusing instruction is issued to the controllable fuse based on the control unit.

[0019] In one embodiment, the method further comprises:

[0020] collecting a charging voltage of the power storage device based on the control unit;

[0021] When the charging voltage is greater than or equal to a preset overcharge voltage threshold, a charging protection instruction is sent to the power storage device based on the control unit to shut down the charging circuit of the power storage device.

[0022] In one embodiment, after the control unit issues a charging protection instruction to the power storage device, the method further includes:

[0023] collecting a discharge current of the electrical storage device based on the control unit;

[0024] When the discharge current meets a preset condition, the control unit sends a recovery instruction to the power storage device to reopen the charging circuit of the power storage device;

[0025] The preset condition includes at least one of the following:

[0026] The discharge current is greater than or equal to a first current threshold;

[0027] The discharge current is always greater than or equal to a second current threshold within a preset detection period, and the first current threshold is greater than the second current threshold.

[0028] In a second aspect, an embodiment of the present disclosure further provides a control device for a power supply system, the device being applied to a base station power supply system, the base station power supply system comprising a power storage device, a MOS tube, a controllable fuse, a load device and a control unit, the output end of the power storage device being connected to the input end of the MOS tube, the output end of the MOS tube being connected to the input end of the controllable fuse, the output end of the controllable fuse being connected to the load device, the first control end of the MOS tube and the second control end of the controllable fuse being connected to the control unit, the device comprising:

[0029] A current acquisition module, configured to acquire a first current value of the MOS tube based on the control unit when the MOS tube is in an off state;

[0030] An instruction issuing module is used to issue a blowing instruction to the controllable fuse based on the control unit when the first current value is greater than 0, so as to blow the controllable fuse.

[0031] In a third aspect, an embodiment of the present disclosure further provides an electronic device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the above-mentioned power supply system control method when executed by the processor.

[0032] In a fourth aspect, an embodiment of the present disclosure further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned power supply system control method are implemented.

[0033] In the embodiment of the present disclosure, a controllable fuse is added to the power supply system of the base station, and when a short circuit is detected after the MOS tube is turned off, a blowing instruction is sent to the controllable fuse based on the controllable fuse, so that the charging circuit or discharging circuit of the power storage device based on the MOS tube is disconnected by the blowing of the controllable fuse, thereby avoiding overcharging or over-discharging of the power storage device, thereby reducing the probability of fire of the power storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the description of the embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 is a flow chart of a control method of a power supply system provided by an embodiment of the present disclosure;

[0036] Figure 2 A schematic diagram of the structure of a base station power supply system provided by an embodiment of the present disclosure;

[0037] Figure 3 A schematic diagram of the structure of a control device for a power supply system provided in an embodiment of the present disclosure;

[0038] Figure 4 A schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0040] The present disclosure provides a control method for a power supply system, which is applied to a base station power supply system. The base station power supply system includes a power storage device, a MOS tube, a controllable fuse, a load device, and a control unit. The output end of the power storage device is connected to the input end of the MOS tube, the output end of the MOS tube is connected to the input end of the controllable fuse, the output end of the controllable fuse is connected to the load device, and the first control end of the MOS tube and the second control end of the controllable fuse are both connected to the control unit. Figure 1 , Figure 1 is a flow chart of a control method for a power supply system provided by an embodiment of the present disclosure, such as Figure 1 As shown, the control method of the power supply system includes the following steps:

[0041] Step 101: When the MOS tube is in an off state, a first current value of the MOS tube is collected based on the control unit.

[0042] Step 102: When the first current value is greater than 0, the control unit sends a blowing instruction to the controllable fuse to blow the controllable fuse.

[0043] In the embodiment of the present disclosure, a controllable fuse is added to the power supply system of the base station, and when a short circuit is detected after the MOS tube is turned off, a blowing instruction is sent to the controllable fuse based on the controllable fuse, so that the charging circuit or discharging circuit of the power storage device based on the MOS tube is disconnected by the blowing of the controllable fuse, thereby avoiding overcharging or over-discharging of the power storage device, thereby reducing the probability of fire of the power storage device.

[0044] It should be noted that after outputting the fuse instruction, the control unit can also output a maintenance instruction through the communication serial port of the base station, so that the base station maintenance personnel can locate the position of the base station based on the maintenance instruction and go to the located base station to perform fault inspection and repair of the MOS tube and replace the new controllable fuse.

[0045] In one embodiment, the acquisition time of the first current value is after the shut-off time of the MOS tube, and the time difference between the acquisition time and the shut-off time is greater than or equal to a preset time threshold.

[0046] In this embodiment, by setting a time threshold, the time interval between the collection moment of the first current value and the shutdown moment of the MOS tube is limited to a certain time, so as to ensure the accuracy and reliability of the collected first current value, avoid the situation where the instantaneous current generated at the moment of the MOS tube being shut down is used as the first current value, reduce the probability of a normally shut-down MOS tube being misjudged as a MOS tube with a short-circuit fault, and make the issuance of the fuse instruction more reliable.

[0047] Exemplarily, the time threshold may be 5 seconds, that is, current collection is performed 5 seconds after the MOS tube is turned off, and the collected current value is used as the first current value.

[0048] In one embodiment, the method further comprises:

[0049] Based on the control unit, the operating current value and the operating voltage value of the power storage device are collected;

[0050] When the working current value is 0 and the working voltage value is greater than or equal to a preset voltage threshold, the fusing instruction is issued to the controllable fuse based on the control unit.

[0051] In this embodiment, when a controllable fuse is added to the base station power supply system, the working current value and working voltage value of the power storage device are monitored and collected, and when the working current value is 0 and the working voltage value is greater than or equal to the preset voltage threshold, it is determined that the power storage device is currently in an open circuit state. As the voltage of the power storage device continues to increase, the risk of fire in the power storage device will also increase accordingly. At this time, the circuit connection between the power storage device and the related equipment is disconnected by controlling the controllable fuse to melt, so as to prevent the voltage of the power storage device from continuing to increase, thereby achieving the purpose of reducing the fire hazard of the power storage device and ensuring the safety of the base station power supply system. Among them, when the power storage device is in a discharging state, the related equipment can be the aforementioned load equipment; when the power storage device is in a charging state, the related equipment can be the AC power supply equipment connected to the base station.

[0052] Exemplarily, the voltage threshold may be 4V.

[0053] In one embodiment, before collecting the first current value of the MOS tube based on the control unit, the method further includes:

[0054] When the MOS tube is in an on state, collecting a temperature rise parameter of the MOS tube based on the control unit, wherein the temperature rise parameter is used to characterize a temperature increase rate of the MOS tube;

[0055] When the temperature rise parameter is greater than or equal to a preset temperature rise threshold, a shutdown instruction is sent to the MOS tube based on the control unit, so that the MOS tube is adjusted from the on state to the off state.

[0056] In this embodiment, the temperature rise parameters of the MOS tube in the on state are collected and compared with the preset temperature rise threshold to determine whether the MOS tube is abnormal. When it is determined that the MOS tube is abnormal, the MOS tube is adjusted from the on state to the off state to avoid the abnormal problem of the MOS tube interfering with the charging and discharging of the power storage device.

[0057] When the temperature rise parameter is greater than or equal to the preset temperature rise threshold, the MOS tube will be judged as having an abnormality; and when the temperature rise parameter is less than the preset temperature rise threshold, the MOS tube will be judged as not having an abnormality.

[0058] Exemplarily, the temperature rise parameter of the MOS tube collected by the control unit may be:

[0059] When the MOS tube is in an on state, first temperature data of the MOS tube at a first sampling moment and second temperature data of the MOS tube at a second sampling moment are obtained, and a difference between the first temperature data and the second temperature data is calculated, and the calculated difference is divided by a preset sampling time interval to obtain a temperature rise parameter of the MOS tube, wherein the first sampling moment is a sampling moment with the shortest interval with the current moment among multiple sampling moments of the MOS tube, and the second sampling moment is a sampling moment before the first sampling moment and adjacent to the first sampling moment among multiple sampling moments of the MOS tube, and the interval between any two adjacent sampling moments among the multiple sampling moments of the MOS tube is the same.

[0060] In one embodiment, the power storage device includes a plurality of battery cells, and the method further includes:

[0061] Based on the control unit collecting voltage data of each of the multiple battery cells, a plurality of voltage data are obtained, wherein the plurality of voltage data correspond to the multiple battery cells one by one;

[0062] Calculating the plurality of voltage data based on the control unit to obtain a target voltage difference, the target voltage difference being the difference between a maximum voltage and a minimum voltage, the maximum voltage being the voltage data with the largest value among the plurality of voltage data, and the minimum voltage being the voltage data with the smallest value among the plurality of voltage data;

[0063] When the target voltage difference is greater than or equal to a preset voltage difference threshold, the fusing instruction is issued to the controllable fuse based on the control unit.

[0064] In this embodiment, a power battery for an automobile whose capacity has decayed to less than 80% of the rated capacity can be used as the aforementioned power storage device. In this case, the power storage device will include multiple battery cells. In view of the performance differences between the multiple battery cells, multiple voltage data corresponding to the multiple battery cells are collected, a target voltage difference is calculated based on the multiple voltage data, and the target voltage difference is compared with a preset voltage difference threshold to determine whether there is a problem of excessive pressure difference inside the power storage device. If it is determined that there is a problem of excessive pressure difference inside the power storage device, the controllable fuse is controlled to blow accordingly to disconnect the charging and discharging circuit of the power storage device, thereby avoiding further development of the problem of excessive pressure difference inside the power storage device and reducing the probability of fire of the power storage device.

[0065] Among them, if the target voltage difference is greater than or equal to the preset voltage difference threshold, it can be determined that there is a problem of excessive voltage difference inside the power storage device; and if the target voltage difference is less than the preset voltage difference threshold, it can be determined that there is no problem of excessive voltage difference inside the power storage device.

[0066] In one embodiment, the method further comprises:

[0067] collecting a charging voltage of the power storage device based on the control unit;

[0068] When the charging voltage is greater than or equal to a preset overcharge voltage threshold, a charging protection instruction is sent to the power storage device based on the control unit to shut down the charging circuit of the power storage device.

[0069] In this embodiment, the overcharge voltage threshold is set to achieve overcharge protection for the power storage device. That is, when the charging voltage of the power storage device is greater than or equal to the overcharge voltage threshold, the charging circuit of the power storage device is shut down to prevent the AC power supply device or the photovoltaic power supply device from continuing to charge the power storage device, thereby avoiding overcharging of the power storage device and reducing the probability of fire of the power storage device.

[0070] In one embodiment, after the control unit issues a charging protection instruction to the power storage device, the method further includes:

[0071] collecting a discharge current of the electrical storage device based on the control unit;

[0072] When the discharge current meets a preset condition, the control unit sends a recovery instruction to the power storage device to reopen the charging circuit of the power storage device;

[0073] The preset condition includes at least one of the following:

[0074] The discharge current is greater than or equal to a first current threshold;

[0075] The discharge current is always greater than or equal to a second current threshold within a preset detection period, and the first current threshold is greater than the second current threshold.

[0076] After the power storage device triggers the overcharge protection, as the discharge current of the power storage device is generated, the overcharge protection of the power storage device will be released, and the power storage device can continue to be charged. It is found in the application that the power storage device will frequently trigger and release the charging protection due to the unstable voltage jump, which will cause the MOS tube to be frequently turned on and off, and increase the failure probability of the MOS tube, thereby increasing the fire probability of the power storage device. In response to the above problem, this embodiment sets preset conditions to reduce the frequency of the charging protection of the power storage device being released due to unstable voltage jump, reduce the on-off frequency of the MOS tube, reduce the failure probability of the MOS tube, and correspondingly reduce the fire probability of the power storage device.

[0077] Exemplarily, the first current threshold may be 30A, the second current threshold may be 10A, and the preset detection period may be 20 seconds, that is, after the power storage device triggers the charging protection, if it is detected that the power storage device has a discharge current greater than 10A and less than 30A, and the duration exceeds 20 seconds, or, when it is detected that the power storage device has a discharge current greater than 30A, the charging protection of the power storage device may be released accordingly.

[0078] For ease of understanding, the following examples are provided:

[0079] like Figure 2 As shown, an embodiment of the present disclosure also provides a base station power supply system, which includes a microcontroller unit (MCU), a power storage device, a MOS tube, a three-terminal fuse and a load device, wherein the power storage device, the MOS tube, the three-terminal fuse and the load device are electrically connected in sequence, and the microcontroller unit is electrically connected to the power storage device, the MOS tube and the three-terminal fuse respectively.

[0080] Among them, the microcontroller unit can collect data such as the total voltage of the power storage device, the single cell voltage of a single battery cell included in the power storage device, the current of the power storage device, the voltage of the MOS tube, the current of the MOS tube, the temperature of the MOS tube, etc.; the microcontroller unit also has an external RS485 communication function (referring to the function of communicating with other base station external systems through the RS485 serial port).

[0081] During the operation of the base station power supply system, if the micro-control unit detects that current can still be detected within 2 seconds after the MOS tube is turned off, it will determine that the MOS tube cannot be turned off normally due to a short circuit fault. At this time, the micro-control unit will control the three-terminal fuse to blow to disconnect the connection between the power storage device and the load device, thereby reducing the probability of fire in the base station power supply system.

[0082] In addition, the microcontroller unit will also monitor the temperature growth rate and real-time temperature of the MOS tube during operation. If it is monitored that the temperature growth rate of the MOS tube during operation is greater than or equal to the temperature rise threshold, and / or the real-time temperature is greater than or equal to the preset temperature threshold, it will be determined that the MOS tube cannot be used normally due to a fault. At this time, the microcontroller unit will also control the three-terminal fuse to blow to disconnect the connection between the power storage device and the load device, thereby reducing the probability of fire in the base station power supply system.

[0083] See also Figure 3 , Figure 3A control device 300 of a power supply system provided in an embodiment of the present disclosure is applied to a base station power supply system. The base station power supply system includes a power storage device, a MOS tube, a controllable fuse, a load device and a control unit. The output end of the power storage device is connected to the input end of the MOS tube, the output end of the MOS tube is connected to the input end of the controllable fuse, the output end of the controllable fuse is connected to the load device, and the first control end of the MOS tube and the second control end of the controllable fuse are both connected to the control unit; Figure 3 As shown, the device 300 includes:

[0084] A current acquisition module 301, configured to acquire a first current value of the MOS tube based on the control unit when the MOS tube is in an off state;

[0085] The instruction issuing module 302 is used for issuing a blowing instruction to the controllable fuse based on the control unit when the first current value is greater than 0, so as to blow the controllable fuse.

[0086] In one embodiment, the acquisition time of the first current value is after the shut-off time of the MOS tube, and the time difference between the acquisition time and the shut-off time is greater than or equal to a preset time threshold.

[0087] In one embodiment, the apparatus 300 further includes:

[0088] An electrical data acquisition module, used for acquiring an operating current value and an operating voltage value of the electrical storage device based on the control unit;

[0089] The instruction issuing module 302 is also used for:

[0090] When the working current value is 0 and the working voltage value is greater than or equal to a preset voltage threshold, the fusing instruction is issued to the controllable fuse based on the control unit.

[0091] In one embodiment, the apparatus 300 further includes:

[0092] A temperature acquisition module, used for acquiring a temperature rise parameter of the MOS tube based on the control unit when the MOS tube is in an on state, wherein the temperature rise parameter is used to characterize a temperature growth rate of the MOS tube;

[0093] The instruction issuing module 302 is also used for:

[0094] When the temperature rise parameter is greater than or equal to a preset temperature rise threshold, a shutdown instruction is sent to the MOS tube based on the control unit, so that the MOS tube is adjusted from the on state to the off state.

[0095] In one embodiment, the power storage device includes a plurality of battery cells, and the apparatus 300 further includes:

[0096] A voltage collection module, configured to collect voltage data of each of the plurality of battery cells based on the control unit to obtain a plurality of voltage data, wherein the plurality of voltage data corresponds to the plurality of battery cells one by one;

[0097] a voltage difference calculation module, configured to calculate the plurality of voltage data based on the control unit to obtain a target voltage difference, wherein the target voltage difference is a difference between a maximum voltage and a minimum voltage, wherein the maximum voltage is the voltage data with the largest value among the plurality of voltage data, and the minimum voltage is the voltage data with the smallest value among the plurality of voltage data;

[0098] The instruction issuing module 302 is also used for:

[0099] When the target voltage difference is greater than or equal to a preset voltage difference threshold, the fusing instruction is issued to the controllable fuse based on the control unit.

[0100] In one embodiment, the apparatus 300 further includes:

[0101] A charging voltage acquisition module, used for acquiring the charging voltage of the power storage device based on the control unit;

[0102] The instruction issuing module 302 is also used for:

[0103] When the charging voltage is greater than or equal to a preset overcharge voltage threshold, a charging protection instruction is sent to the power storage device based on the control unit to shut down the charging circuit of the power storage device.

[0104] In one embodiment, the apparatus 300 further includes:

[0105] A discharge current acquisition module, used for acquiring the discharge current of the power storage device based on the control unit;

[0106] The instruction issuing module 302 is also used for:

[0107] When the discharge current meets a preset condition, the control unit sends a recovery instruction to the power storage device to reopen the charging circuit of the power storage device;

[0108] The preset condition includes at least one of the following:

[0109] The discharge current is greater than or equal to a first current threshold;

[0110] The discharge current is always greater than or equal to a second current threshold within a preset detection period, and the first current threshold is greater than the second current threshold.

[0111] The control device 300 of the power supply system provided in the embodiment of the present disclosure can implement each process in the above method embodiment, and will not be described again here to avoid repetition.

[0112] See also Figure 4 , Figure 4 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure, such as Figure 4 As shown, the electronic device includes: a processor 401 , a memory 402 , and a program 4021 stored in the memory 402 and executable on the processor 401 .

[0113] When the program 4021 is executed by the processor 401, it can achieve Figure 1 Any steps in the corresponding method embodiments and achieving the same beneficial effects will not be repeated here.

[0114] Those skilled in the art will appreciate that all or part of the steps of implementing the above-mentioned embodiment method can be completed by hardware associated with program instructions, and the program can be stored in a readable medium.

[0115] The present disclosure also provides a readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the above-mentioned Figure 1 Any steps in the corresponding method embodiments can achieve the same technical effect and will not be repeated here to avoid repetition.

[0116] The computer-readable storage medium of the embodiment of the present disclosure may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by an instruction execution system, device or device or used in combination with it.

[0117] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0118] The program code contained on the storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wire, optical cable, RF, etc., or any suitable combination of the foregoing.

[0119] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or terminal. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0120] The above is a preferred implementation of the embodiment of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present disclosure. These improvements and modifications should also be regarded as the scope of protection of the present disclosure.

Claims

1. A control method for a power supply system, characterized in that: The method is applied to a base station power supply system, which includes a power storage device, a MOS tube, a controllable fuse, a load device and a control unit, wherein the output end of the power storage device is connected to the input end of the MOS tube, the output end of the MOS tube is connected to the input end of the controllable fuse, the output end of the controllable fuse is connected to the load device, the first control end of the MOS tube and the second control end of the controllable fuse are both connected to the control unit, and the method includes: When the MOS tube is in an off state, collecting a first current value of the MOS tube based on the control unit; When the first current value is greater than 0, the control unit sends a fusing instruction to the controllable fuse to blow the controllable fuse; Wherein, the method further comprises: Based on the control unit, the operating current value and the operating voltage value of the power storage device are collected; When the working current value is 0 and the working voltage value is greater than or equal to a preset voltage threshold, the control unit sends the fusing instruction to the controllable fuse; The power storage device is a power battery for an automobile whose capacity decays to less than 80% of the rated capacity, and the power storage device includes a plurality of battery cells. The method further includes: Based on the control unit collecting voltage data of each of the multiple battery cells, a plurality of voltage data are obtained, wherein the plurality of voltage data correspond to the multiple battery cells one by one; Calculating the plurality of voltage data based on the control unit to obtain a target voltage difference, the target voltage difference being the difference between a maximum voltage and a minimum voltage, the maximum voltage being the voltage data with the largest value among the plurality of voltage data, and the minimum voltage being the voltage data with the smallest value among the plurality of voltage data; When the target voltage difference is greater than or equal to a preset voltage difference threshold, issuing the fusing instruction to the controllable fuse based on the control unit; Before collecting the first current value of the MOS tube based on the control unit, the method further includes: When the MOS tube is in an on state, collecting a temperature rise parameter of the MOS tube based on the control unit, wherein the temperature rise parameter is used to characterize a temperature increase rate of the MOS tube; When the temperature rise parameter is greater than or equal to a preset temperature rise threshold, a shutdown instruction is sent to the MOS tube based on the control unit, so that the MOS tube is adjusted from the on state to the off state.

2. The method according to claim 1, characterized in that: The acquisition time of the first current value is after the shut-off time of the MOS tube, and the time difference between the acquisition time and the shut-off time is greater than or equal to a preset time threshold.

3. The method according to claim 1, characterized in that: The method further comprises: collecting a charging voltage of the power storage device based on the control unit; When the charging voltage is greater than or equal to a preset overcharge voltage threshold, a charging protection instruction is sent to the power storage device based on the control unit to shut down the charging circuit of the power storage device.

4. The method according to claim 3, characterized in that After the control unit issues a charging protection instruction to the power storage device, the method further includes: collecting a discharge current of the electrical storage device based on the control unit; When the discharge current meets a preset condition, the control unit sends a recovery instruction to the power storage device to reopen the charging circuit of the power storage device; The preset condition includes at least one of the following: The discharge current is greater than or equal to a first current threshold; The discharge current is always greater than or equal to a second current threshold within a preset detection period, and the first current threshold is greater than the second current threshold.

5. A control device for a power supply system, characterized in that: The device is applied to a base station power supply system, which includes a power storage device, a MOS tube, a controllable fuse, a load device and a control unit. The output end of the power storage device is connected to the input end of the MOS tube, the output end of the MOS tube is connected to the input end of the controllable fuse, the output end of the controllable fuse is connected to the load device, the first control end of the MOS tube and the second control end of the controllable fuse are both connected to the control unit. The device includes: A current acquisition module, configured to acquire a first current value of the MOS tube based on the control unit when the MOS tube is in an off state; an instruction issuing module, configured to issue a fusing instruction to the controllable fuse based on the control unit when the first current value is greater than 0, so as to cause the controllable fuse to blow; The device also includes: An electrical data acquisition module, used for acquiring an operating current value and an operating voltage value of the electrical storage device based on the control unit; The instruction issuing module is also used for: When the working current value is 0 and the working voltage value is greater than or equal to a preset voltage threshold, the control unit sends the fusing instruction to the controllable fuse; The power storage device is a power battery for automobiles whose capacity decays to less than 80% of the rated capacity. The power storage device includes a plurality of battery cells. The device also includes: A voltage collection module, configured to collect voltage data of each of the plurality of battery cells based on the control unit to obtain a plurality of voltage data, wherein the plurality of voltage data corresponds to the plurality of battery cells one by one; a voltage difference calculation module, configured to calculate the plurality of voltage data based on the control unit to obtain a target voltage difference, wherein the target voltage difference is a difference between a maximum voltage and a minimum voltage, wherein the maximum voltage is the voltage data with the largest value among the plurality of voltage data, and the minimum voltage is the voltage data with the smallest value among the plurality of voltage data; The instruction issuing module is also used for: When the target voltage difference is greater than or equal to a preset voltage difference threshold, issuing the fusing instruction to the controllable fuse based on the control unit; The device also includes: A temperature acquisition module, used for acquiring a temperature rise parameter of the MOS tube based on the control unit when the MOS tube is in an on state, wherein the temperature rise parameter is used to characterize a temperature growth rate of the MOS tube; The instruction issuing module is also used for: When the temperature rise parameter is greater than or equal to a preset temperature rise threshold, a shutdown instruction is sent to the MOS tube based on the control unit, so that the MOS tube is adjusted from the on state to the off state.

6. An electronic device, characterized in that: The invention comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the control method of the power supply system as claimed in any one of claims 1 to 4.

7. A readable storage medium, characterized in that: The readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the control method of the power supply system according to any one of claims 1 to 4 are implemented.

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