Method and device for adjusting working state of power supply apparatus, and electronic device

Abstract

A method and device for adjusting the working state of a power supply apparatus, and an electronic device. The method comprises: acquiring parameter information of a first connection point of a power supply apparatus, wherein the parameter information comprises electrical parameters and a first temperature (S202); determining fault prediction information of the first connection point on the basis of the parameter information (S204); and when the fault prediction information indicates a fault occurring at the first connection point, adjusting the working state of the power supply apparatus on the basis of the fault prediction information (S206). The present disclosure solves the problem in the related art that a power supply apparatus is only equipped with an alarm system for after a major event caused by a fault has occurred, and cannot avoid major events.

Description

Method and device for adjusting working state of power supply equipment, and electronic device

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on June 27, 2023, with application number 202310776984.1 and invention name “Method and device for adjusting the working state of power supply equipment, electronic device”, the entire content of which is incorporated by reference in this disclosure. Technical Field

[0002] The embodiments of the present disclosure relate to the field of communications, and in particular, to a method and device for adjusting the working state of a power supply device, and an electronic device. Background Art

[0003] Currently, power supply equipment in the industry (for example, high-voltage DC power supply cabinets) is only equipped with an alarm system for abnormal conditions, and does not have an early warning function. It is difficult for operation and maintenance personnel to predict the time and location of faults in advance. In addition, the presence of the casing makes it difficult to detect faults inside the equipment. They can only be discovered after the fault is severe enough to cause destructive phenomena. At this time, the loss is often unavoidable, so many serious accidents cannot be prevented in time.

[0004] Existing HVDC manufacturers have struggled to prevent catastrophic failures. For example, internal faults in power cabinets can worsen to the point of fire, destroying equipment and even computer rooms, causing immeasurable loss of life and property. Considering the characteristics of HVDC and industry failure cases, power supply equipment failures typically begin at the connection points.

[0005] Therefore, in the prior art, the power supply equipment is only equipped with an alarm system after a malicious event caused by a fault occurs, which cannot avoid the problem of the malicious event occurring.

[0006] Summary of the Invention

[0007] The embodiments of the present disclosure provide a method and device for adjusting the working state of a power supply device, and an electronic device, so as to at least solve the problem in the related art that the power supply device is only equipped with an alarm system after a malicious event caused by a fault occurs, and cannot avoid the occurrence of the malicious event.

[0008] According to an embodiment of the present disclosure, a method for adjusting the working state of a power supply device is provided, comprising: obtaining parameter information of a first connection point of the power supply device, wherein the parameter information comprises: an electrical parameter, a first temperature; determining fault prediction information of the first connection point based on the parameter information; and adjusting the working state of the power supply device based on the fault prediction information when the fault prediction information indicates that a fault exists at the first connection point.

[0009] According to another embodiment of the present disclosure, a device for adjusting the working state of a power supply device is provided, including: an acquisition module, configured to obtain parameter information of a first connection point of the power supply device, wherein the parameter information includes: electrical parameters, a first temperature; a determination module, configured to determine fault prediction information of the first connection point based on the parameter information; and an adjustment module, configured to adjust the working state of the power supply device according to the fault prediction information when the fault prediction information indicates that the first connection point has a fault.

[0010] According to another embodiment of the present disclosure, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to execute the steps of any one of the above method embodiments when running.

[0011] According to another embodiment of the present disclosure, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments.

[0012] Through the present disclosure, based on the electrical parameters and temperature of the first connection point of a power supply device, a prediction is made as to whether the first connection point will fail. If a failure is predicted, the operating state of the power supply device is automatically adjusted to provide intelligent protection for the power supply device. This solves the problem in related art where power supply devices are only equipped with an alarm system after a malicious event caused by a fault occurs, but are unable to prevent the occurrence of malicious events. This further achieves the technical effect of improving the safety of the power supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a hardware structure block diagram of a computer terminal for a method for adjusting the working state of a power supply device according to an embodiment of the present disclosure;

[0014] FIG2 is a flow chart of a method for adjusting the working state of a power supply device according to an embodiment of the present disclosure;

[0015] FIG3 is a system block diagram of a high-voltage direct current temperature early warning intelligent control system according to an embodiment of the present disclosure;

[0016] FIG4 is a block diagram of a typical configuration of a high-voltage DC power supply cabinet according to an embodiment of the present disclosure;

[0017] FIG5 is a structural block diagram of a device for adjusting the working state of a power supply device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0018] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings and in conjunction with embodiments.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0020] The method embodiments provided in the embodiments of the present disclosure can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking operation on a computer terminal as an example, FIG1 is a hardware structure block diagram of a computer terminal of a method for adjusting the working state of a power supply device according to an embodiment of the present disclosure. As shown in FIG1 , the computer terminal may include one or more (only one is shown in FIG1 ) processors 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (Microcontroller Unit, MCU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data, wherein the above-mentioned computer terminal may also include a transmission device 106 and an input and output device 108 for a communication function. It will be understood by those skilled in the art that the structure shown in FIG1 is only for illustration and does not limit the structure of the above-mentioned computer terminal. For example, the computer terminal may also include more or fewer components than those shown in FIG1 , or have a configuration different from that shown in FIG1 .

[0021] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as a computer program corresponding to a method for adjusting the working state of a power supply device in an embodiment of the present disclosure. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implementing the above-mentioned method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely located relative to the processor 102, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0022] The transmission device 106 is used to receive or transmit data via a network. A specific example of the aforementioned network may include a wireless network provided by a computer terminal's communications provider. In one embodiment, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0023] FIG2 is a flow chart of adjusting the working state of a power supply device according to an embodiment of the present disclosure. As shown in FIG2 , the flow chart includes the following steps:

[0024] Step S202: Acquire parameter information of a first bonding point of a power supply device, wherein the parameter information includes: electrical parameters and a first temperature;

[0025] Electrical parameters include but are not limited to: current, voltage, and load rate.

[0026] Step S204, determining fault prediction information of the first joint according to the parameter information;

[0027] Optionally, determining the fault prediction information of the first connection point based on the parameter information includes: determining whether the prediction function of the intelligent protection unit of the power supply device is turned on, and when the prediction function of the intelligent protection unit of the power supply device is turned on, determining the fault prediction information of the first connection point based on the parameter information.

[0028] Step S206 : When the fault prediction information indicates that the first connection point has a fault, adjust the working state of the power supply device according to the fault prediction information.

[0029] The above-mentioned faults include: level one faults, level two faults and level three faults, wherein the risk level of the level one fault is lower than the risk level of the level two fault, and the risk level of the level two fault is lower than the risk level of the level three fault; or, the risk level of the level one fault is higher than the risk level of the level two fault, and the risk level of the level two fault is higher than the risk level of the level three fault.

[0030] When the risk level of the first-level fault is lower than the risk level of the second-level fault, and the risk level of the second-level fault is lower than the risk level of the third-level fault, it can be understood that the first-level fault is a mild fault; the second-level fault is a moderate fault, and the third-level fault is a severe fault; when the risk level of the first-level fault is greater than the risk level of the second-level fault, and the risk level of the second-level fault is greater than the risk level of the third-level fault, it can be understood that the first-level fault is a severe fault; the second-level fault is a moderate fault, and the third-level fault is a mild fault.

[0031] Among them, the probability of a malicious incident caused by a minor fault is less than or equal to the first preset probability; the probability of a malicious incident caused by a moderate fault is greater than the first preset probability and less than or equal to the second preset probability, and the power supply equipment can reduce the probability of a malicious incident by reducing the load corresponding to the tapping point; the probability of a malicious incident caused by a severe fault is greater than the second preset probability, and the power supply equipment can reduce the probability of a malicious incident by disconnecting all loads at the tapping point.

[0032] Through the above steps, parameter information of the first connection point of the power supply device is obtained, wherein the parameter information includes: electrical parameters and a first temperature; fault prediction information of the first connection point is determined based on the parameter information; and when the fault prediction information indicates a fault at the first connection point, the operating state of the power supply device is adjusted based on the fault prediction information. This solves the problem in related art where power supply devices are only equipped with an alarm system for after an abnormal condition occurs, and the fault is not detected until it becomes severe enough to cause destructive phenomena, thus failing to prevent the occurrence of malicious events. This thereby achieves the technical effect of improving the safety of the power supply device.

[0033] Optionally, the above step S204 can be implemented in various ways. Two implementations are provided in the embodiment of the present disclosure, including:

[0034] 1) Determine a second temperature corresponding to each electrical parameter, and determine a temperature difference between the first temperature and each second temperature; and determine fault prediction information of the first joint according to the temperature difference between the first temperature and each second temperature.

[0035] Optionally, when the risk level of the first-level fault is lower than the risk level of the second-level fault, and the risk level of the second-level fault is lower than the risk level of the third-level fault, the fault prediction information of the first joint is determined according to the following method: when the temperature difference between the first temperature and any second temperature is greater than a first preset threshold and less than a second preset threshold, it is determined that there is a first-level fault at the first joint; when the temperature difference between the first temperature and any second temperature is greater than or equal to the second preset threshold and less than a third preset threshold, it is determined that there is a second-level fault at the first joint; when the temperature difference between the first temperature and any second temperature is greater than or equal to the third preset threshold, it is determined that there is a third-level fault at the first joint.

[0036] When the risk level of the first-level fault is greater than the risk level of the second-level fault, and the risk level of the second-level fault is greater than the risk level of the third-level fault, the fault prediction information of the first joint is determined according to the following method: when the temperature difference between the first temperature and any second temperature is greater than a first preset threshold and less than a second preset threshold, it is determined that the first joint has a third-level fault; when the temperature difference between the first temperature and any second temperature is greater than or equal to the second preset threshold and less than the third preset threshold, it is determined that the first joint has a second-level fault; when the temperature difference between the first temperature and any second temperature is greater than or equal to the third preset threshold, it is determined that the first joint has a first-level fault.

[0037] It can be understood that the first temperature and the second temperature are substituted into the diagnostic model for comparison to determine the fault prediction information. The diagnostic model represents the functional relationship between the first temperature and multiple second temperatures. It is a regression model with the minimum error calculated by the least squares method between the first temperature and the second temperature under normal equipment operation conditions. Due to the strong correlation between the first temperature and the second temperature, the quadratic regression model can meet the error requirements. For example, the regression model of a certain joint position is as follows: T = k(a1[X1]^2+b1X1+c1); T = k(a2[X2]^2+b2X2+c2); T = k(a3[X3]^2+b3X3+c3)...T = k(an[Xn]^2+bnXn+cn), where T represents the joint temperature value; X1, X2, X3...Xn represent electrical parameters such as current, voltage, and load rate set for fault diagnosis; a1, b1, c1, a2, b2, c2, a3, b3, c3...an, bn, cn represent the variable coefficients in the regression model of each electrical parameter; k represents the correlation coefficient of the diagnostic model, which can be corrected according to the altitude, ambient temperature, and equipment operating time. When determining the fault prediction information of the first joint, each electrical parameter value is substituted into the corresponding regression model to calculate the theoretical temperature value (equivalent to the second temperature in the above embodiment). As long as the first temperature value does not meet the range of any calculated theoretical temperature value, it is determined that there is a fault at the first joint.

[0038] Furthermore, the electrical parameters in the embodiment of the present disclosure are electrical parameters obtained in real time, and the first temperature is a temperature value obtained in real time. The corresponding real-time theoretical temperature value is determined based on the real-time electrical parameters, and the difference between the real-time theoretical temperature value and the real-time temperature value is used to determine the fault prediction information of the first joint. Therefore, through the embodiment of the present disclosure, it is possible to determine in real time whether there is a fault at the joint of the power supply equipment, thereby improving the safety of the power supply equipment.

[0039] For example, the first preset threshold is 5°C, the second preset threshold is 10°C, and the third preset threshold is 20°C. If the temperature difference between the first temperature and any second temperature is greater than 5°C and less than 10°C, it is determined that the first connection point has a first-level fault; if the temperature difference between the first temperature and any second temperature is greater than or equal to 10°C and less than 20°C, it is determined that the first connection point has a second-level fault; if the temperature difference between the first temperature and any second temperature is greater than or equal to 20°C, it is determined that the first connection point has a third-level fault. It should be noted that the embodiments of the present disclosure do not limit the specific values ​​of the first preset threshold, the second preset threshold, and the third preset threshold.

[0040] 2) Determine the group corresponding to the first joint, wherein the types of equipment units corresponding to the joints in the same group are consistent; determine the average temperature of the second joint in the group, and determine the temperature difference between the first temperature and the average temperature, wherein the second joint is the other joint in the group except the first joint; determine the fault prediction information of the first joint based on the temperature difference between the first temperature and the average temperature.

[0041] Optionally, when the risk level of the first-level fault is lower than the risk level of the second-level fault, and the risk level of the second-level fault is lower than the risk level of the third-level fault, the fault prediction information of the first joint is determined according to the following method: when the temperature difference between the first temperature and the average temperature is greater than a first preset threshold and less than a second preset threshold, it is determined that there is a first-level fault at the first joint; when the temperature difference between the first temperature and the average temperature is greater than or equal to the second preset threshold and less than a third preset threshold, it is determined that there is a second-level fault at the first joint; when the temperature difference between the first temperature and the average temperature is greater than or equal to the third preset threshold, it is determined that there is a third-level fault at the first joint.

[0042] When the risk level of the first-level fault is greater than the risk level of the second-level fault, and the risk level of the second-level fault is greater than the risk level of the third-level fault, the fault prediction information of the first joint is determined according to the following method: when the temperature difference between the first temperature and the average temperature is greater than a first preset threshold and less than a second preset threshold, it is determined that the first joint has a third-level fault; when the temperature difference between the first temperature and the average temperature is greater than or equal to the second preset threshold and less than the third preset threshold, it is determined that the first joint has a second-level fault; when the temperature difference between the first temperature and the average temperature is greater than or equal to the third preset threshold, it is determined that the first joint has a first-level fault.

[0043] It is understandable that when the equipment is operating normally, the temperature values ​​of the joints in the same group are generally close. Therefore, if the difference between the first temperature of a particular joint and the average temperature is too large, it indicates that there is a fault at that joint. For example, joints at the same location are grouped together, and the temperature values ​​of the joints at the same location are T1, T2, T3, ..., Tn. When the equipment is operating normally, the temperature values ​​of the joints at the same location are theoretically consistent, that is, T1 ≈ T2 ≈ T3 ≈ ... ≈ Tn. If the temperature value T1 of a particular joint is found to differ significantly from the average value of the temperature values ​​of the other rectifiers (T2 + T3 + ... + Tn) / (n-1), it indicates that there is a fault at that joint.

[0044] It is understandable that, for example, the first preset threshold is 5°C, the second preset threshold is 10°C, and the third preset threshold is 20°C. When the temperature difference between the first temperature and the average temperature is greater than 5°C and less than 10°C, it is determined that the first joint has a primary fault; when the temperature difference between the first temperature and the average temperature is greater than or equal to 10°C and less than 20°C, it is determined that the first joint has a secondary fault; and when the temperature difference between the first temperature and the average temperature is greater than or equal to 20°C, it is determined that the first joint has a tertiary fault. It should be noted that the embodiments of the present disclosure do not limit the specific values ​​of the first preset threshold, the second preset threshold, and the third preset threshold.

[0045] Optionally, the above-mentioned step S206 can be implemented in the following manner: when the fault prediction information indicates that there is a first-level fault at the first joint, control the alarm module of the power supply device to issue an alarm message; when the fault prediction information indicates that there is a second-level fault or a third-level fault at the first joint, determine the location area of ​​the first joint; and adjust the working status of the power supply device according to the location area and the fault prediction information.

[0046] The alarm module of the power supply device is controlled to send an alarm message in one of the following ways: 1) controlling the alarm module of the power supply device to send an alarm prompt sound; 2) controlling the display component of the alarm module of the power supply device to display an alarm prompt light.

[0047] Optionally, the working state of the power supply device is adjusted according to the location area and the fault prediction information, including: when the first connection point is located in the first area, the third area, or the seventh area, and the fault prediction information indicates that there is a secondary fault at the first connection point, prohibiting the first load device from being powered by the rectifier of the power supply device, and controlling the power supply to the first load device through the DC power supply unit, wherein the first area is the power supply line from the AC power supply unit of the power supply device to the circuit breaker connected to the AC power supply unit, the third area is the power supply line from the monitoring unit of the power supply device to the AC busbar of the power supply device, and the The seventh area is the area corresponding to the power supply lines between the DC busbar of the power supply device and the load circuit breaker and the DC busbar and the battery circuit breaker. The load circuit breaker is a circuit breaker connected to the load device corresponding to the power supply device, and the battery circuit breaker is a circuit breaker connected to the DC power supply unit. When the first connection point is located in the first area, the third area, or the seventh area, and the fault prediction information indicates that there is a third-level fault at the first connection point, the circuit breaker is controlled to disconnect, and the DC power supply unit is controlled to supply power to the second load device corresponding to the power supply device, wherein the second load device includes at least: the first load device.

[0048] The monitoring unit may be understood as: a circuit breaker connected to the AC power supply unit, or an automatic transfer switch connected to the AC power supply unit.

[0049] It can be understood that the first area can be understood as area A in scenario 1 as shown in Figure 4, which is mainly the power supply line from the AC power (equivalent to the AC power supply unit in the above embodiment) to the circuit breaker (equivalent to the circuit breaker connected to the AC power supply unit in the above embodiment); the third area can be understood as area B as shown in Figure 4, which is mainly the power supply line from the circuit breaker or automatic transfer switch of the power supply equipment to the AC busbar of the power supply equipment; the seventh area can be understood as area F as shown in Figure 4, which is mainly the power supply line between the DC busbar and the load circuit breaker and the battery circuit breaker.

[0050] When the first tapping point is located at a certain position on A, B or F in scenario 1 in Figure 4 and the fault prediction information indicates that there is a secondary fault at the first tapping point, some or all of the rectifiers are adjusted to reduce the load, and part of the load is shared by the DC power supply unit (for example, a battery) to reduce the current carrying capacity at the fault tapping point; when the first tapping point is located at a certain position on A, B or F in scenario 1 in Figure 4 and the fault prediction information indicates that there is a tertiary fault at the first tapping point, the circuit breaker is controlled to disconnect, and the load is completely powered by the DC power supply unit.

[0051] Optionally, the working state of the power supply device is adjusted according to the location area and the fault prediction information, including: when the first tapping point is located in the second area and the fault prediction information indicates that there is a secondary fault at the first tapping point, controlling the automatic transfer switch of the power supply device to disconnect the connection with the AC power unit with risk, and establishing a connection with the AC power unit without risk, wherein the second area is the power supply line from the AC power unit of the power supply device to the automatic transfer switch connected to the AC power unit, and the AC power unit includes: the AC power unit with risk and the AC power unit without risk; when the first tapping point is located in the second area and the fault prediction information indicates that there is a tertiary fault at the first tapping point, controlling the automatic transfer switch of the power supply device to disconnect the connection with the AC power unit with risk, and establishing a connection with the AC power unit without risk.

[0052] It is understandable that the second area can be understood as area A in scenario 2 as shown in Figure 4, which is mainly the power supply line from the mains to the ATS (automatic transfer switch). When the first connection point is located at a certain position on A in scenario 2 in Figure 4 and the fault prediction information indicates that the first connection point has a secondary fault, the ATS is controlled to switch to the mains that does not cause any risk; when the first connection point is located at a certain position on A in scenario 2 in Figure 4 and the fault prediction information indicates that the first connection point has a tertiary fault, the ATS is controlled to switch to the mains that does not cause any risk.

[0053] Optionally, adjusting the working state of the power supply device according to the location area and the fault prediction information includes: when the first tapping point is located in the fourth area, the fifth area, or the sixth area, and the fault prediction information indicates that there is a secondary fault at the first tapping point, prohibiting the third load device from being powered by the rectifier corresponding to the first tapping point, and powering the third load device through other rectifiers of the power supply device, wherein the fourth area is the power supply line from the AC busbar of the power supply device to the rectifier circuit breaker of the power supply device, the fifth area is the power supply line from the rectifier circuit breaker to the rectifier of the power supply device, and the sixth area is the power supply line from the rectifier to the DC busbar of the power supply device, and the rectifier circuit breaker is a circuit breaker connected to the rectifier; when the first tapping point is located in the fourth area, the fifth area, or the sixth area, and the fault prediction information indicates that there is a third fault at the first tapping point, controlling the rectifier circuit breaker corresponding to the first tapping point to be disconnected, and controlling the second load device corresponding to the power supply device to be powered by the DC power supply unit, wherein the second load device at least includes: the third load device.

[0054] It can be understood that the fourth area can be understood as area C as shown in Figure 4, which is mainly the power supply line between the AC busbar and each rectifier circuit breaker; the fifth area can be understood as area D as shown in Figure 4, which is mainly the power supply line between the rectifier circuit breaker and the input end of the rectifier; the sixth area can be understood as area E as shown in Figure 4, which is mainly the power supply line between the output end of each rectifier and the DC busbar.

[0055] When the first jumper point is located at a position on C, D or E in Figure 4 and the fault prediction information indicates that there is a secondary fault at the first jumper point, the rectifier corresponding to the fault position is adjusted to reduce the load, and the other rectifiers are adjusted to load to share the load; when the first jumper point is located at a position on C, D or E in Figure 4 and the fault prediction information indicates that there is a tertiary fault at the first jumper point, the circuit breaker of the rectifier at the fault position is controlled to disconnect, and the other rectifiers are adjusted to load to share the load.

[0056] Optionally, the working state of the power supply device is adjusted according to the location area and the fault prediction information, including: when the first tapping point is located in the eighth area and the fault prediction information indicates that there is a secondary fault at the first tapping point, prohibiting the DC power supply unit corresponding to the first tapping point from supplying power to the fourth load device, and controlling the rectifier of the power supply device to supply power to the fourth load device, wherein the eighth area is the power supply line between the battery circuit breaker corresponding to the DC power supply unit and the DC power supply unit; when the first tapping point is located in the eighth area and the fault prediction information indicates that there is a third-level fault at the first tapping point, controlling the battery circuit breaker to disconnect, and controlling the load device corresponding to the DC power supply unit to supply power.

[0057] It can be understood that the eighth area can be understood as the G area shown in FIG4 , which is mainly the power supply line between the battery circuit breaker and the battery.

[0058] When the first tapping point is located at a certain position on G in Figure 4 and the fault prediction information indicates that there is a secondary fault at the first tapping point, the rectifier load is adjusted and the battery load is reduced; when the first tapping point is located at a certain position on G in Figure 4 and the fault prediction information indicates that there is a tertiary fault at the first tapping point, the battery circuit breaker is disconnected.

[0059] Optionally, the working state of the power supply device is adjusted according to the location area and the fault prediction information, including: when the first tapping point is located in the ninth area and the fault prediction information indicates that there is a secondary fault at the first tapping point, controlling the load circuit breaker corresponding to the first tapping point to disconnect, and controlling the fifth load device corresponding to the load circuit breaker to be powered through the DC power supply unit, wherein the ninth area is the power supply line between the load circuit breaker and the load device corresponding to the load circuit breaker; when the first tapping point is located in the ninth area and the fault prediction information indicates that there is a third-level fault at the first tapping point, controlling the load circuit breaker corresponding to the first tapping point to disconnect, and controlling the fifth load device corresponding to the load circuit breaker to be powered through the DC power supply unit.

[0060] It can be understood that the ninth area can be understood as the H area shown in FIG4 , which is mainly the power supply line between the load circuit breaker and the load.

[0061] When the first tapping point is located at a certain position on H in Figure 4 and the fault prediction information indicates that there is a secondary fault at the first tapping point, the load circuit breaker is disconnected and the backup power supply line of the load is enabled; when the first tapping point is located at a certain position on H in Figure 4 and the fault prediction information indicates that there is a tertiary fault at the first tapping point, the load circuit breaker is disconnected and the backup power supply line of the load is enabled.

[0062] In order to better understand the process of the above-mentioned method for determining the running time, the implementation process of the above-mentioned method for determining the running time is described below in combination with an optional embodiment, but it is not intended to limit the technical solution of the embodiment of the present disclosure.

[0063] FIG3 is a system block diagram of a high-voltage direct current temperature early warning intelligent control system according to an embodiment of the present disclosure. As shown in FIG3 , the system block diagram mainly includes a data acquisition unit, a fault diagnosis unit, and an intelligent protection unit.

[0064] The data acquisition unit is configured to collect temperature and electrical parameters of multiple important connection points on the high-voltage DC equipment and upload them to the fault diagnosis unit.

[0065] The fault diagnosis unit is configured to predict the fault risk point by using an algorithm to analyze the received temperature and electrical parameter data, and to send an alarm to the intelligent protection unit based on the prediction result.

[0066] The intelligent protection unit is set to prompt operation and maintenance personnel to go to the site to inspect and maintain the specific fault location of the equipment based on the alarm information. For risk points predicted to be malicious faults, the intelligent protection unit will also automatically adjust the working status of the equipment according to the location of the risk point to provide intelligent protection for the equipment.

[0067] In an optional embodiment, the temperature warning control system mainly includes three parts: a data acquisition unit, a fault diagnosis unit, and an intelligent protection unit. It needs to have communication interfaces such as CAN, RS485, RS232, RS422, and an Internet port. The processor chip needs to meet the computing requirements, and a certain amount of data storage space needs to be reserved on the hardware.

[0068] In an optional embodiment, the data acquisition unit mainly collects the temperature and electrical parameters of multiple important bonding points on the high-voltage DC equipment and uploads them to the fault diagnosis unit.

[0069] 1) Temperature acquisition can be achieved by using sensor measurement circuit solutions such as platinum resistance, NTC, PTC, thermocouple, and optical fiber;

[0070] 2) Electrical parameters include: voltage, current, power, load rate, harmonics, frequency, power factor, etc. Electrical parameters can be collected through current sensors combined with analog detection circuits, or through electric meters with communication functions;

[0071] 3) The joint locations where data needs to be collected cover all spatial areas of the high-voltage DC power supply cabinet, especially the joint locations with high failure rates, such as the input and output ends of the rectifier, the joints between batteries, the joints between load wiring and copper busbars, the joints between copper busbars and battery wiring, and the joints between copper busbars of parallel cabinets.

[0072] In an optional embodiment, the fault diagnosis unit performs fault prediction on the received connection point temperature and electrical parameters through algorithm analysis, and sends an alarm to the intelligent protection unit based on the prediction result.

[0073] 1) The fault diagnosis unit mainly performs fault diagnosis through a comparative analysis method. The embodiment of the present disclosure provides two comparative analysis methods. When it is confirmed that the high-voltage DC power supply cabinet has a fault through one of the comparative analysis methods, it is determined that the high-voltage DC power supply cabinet has a fault:

[0074] Method 1: Substitute the received temperature and electrical parameter data into the diagnostic model for comparative analysis to determine abnormal temperature values. The diagnostic model represents the functional relationship between the joint temperature and multiple electrical parameters. It is a regression model with the minimum error calculated using the least squares method using the joint temperature and electrical parameter data (factory test data) under normal equipment operating conditions (no faults). Due to the strong correlation between temperature and electrical parameters, a quadratic regression model can meet the error requirements. For example, the regression model for a particular joint location is as follows:

[0075] T=k(a1X1 2 +b1X1+c1);

[0076] T=k(a2X22 +b2X2+c2);

[0077] T=k(a3X3 2 +b3X3+c3);

[0078] …

[0079] T=k(anXn 2 +bnXn+cn);

[0080] T represents the temperature value of the joint; X1, X2, X3, Xn represent the electrical parameters set for fault diagnosis, such as current, voltage, and load rate; a1, b1, c1, a2, b2, c2, a3, b3, c3...an, bn, cn represent the variable coefficients in the regression model of each electrical parameter; k represents the correlation coefficient of the diagnostic model, which can be corrected according to the altitude, ambient temperature, and equipment operating time.

[0081] During comparative analysis, each real-time electrical parameter value will be substituted into the corresponding regression model to calculate the theoretical temperature value. As long as the real-time temperature value does not meet the theoretical temperature value range calculated by any regression model, it is determined that there is a failure risk in the high-voltage DC power supply cabinet.

[0082] Method 2: Group the joint locations on the high-voltage DC power supply cabinet. Under normal equipment operation, the temperature values ​​of the joint locations in the same group are basically similar, and the diagnostic model is also the same. By comparing and analyzing the temperature data of the joint locations in the same group, the abnormal joint locations are determined.

[0083] For example, the joints at the same position of each rectifier in a high-voltage DC power supply cabinet can be grouped together, and their real-time temperature values ​​are T1, T2, T3, ..., Tn. When the equipment is working normally, the load conditions of each rectifier are consistent, and the temperature values ​​are theoretically consistent, that is, T1≈T2≈T3≈...≈Tn. If the temperature value T1 of a certain joint point of a rectifier is found to be the average of the temperature values ​​of other rectifiers, If the phase difference is too large, it indicates that there is a fault at the corresponding joint position of the rectifier.

[0084] 2) Number each joint position and group the joints according to their characteristics. Then, cyclically collect the electrical parameters and temperature data of each joint position, correspond them to the position number, and then substitute them into the corresponding diagnostic model for comparative analysis. The difference between the real-time temperature value and the theoretical temperature value is used to predict whether the joint has a fault risk. At the same time, the temperature values ​​between the joint positions in the same group are also compared and analyzed to screen out abnormal temperature values ​​in the joints in the same group. Then, according to the preset judgment logic, predict the degree of fault risk of the joint corresponding to the abnormal temperature value, and send an alarm and the corresponding joint position number to the intelligent protection unit for further processing.

[0085] Refer to Table 1 for the fault judgment logic. T0 represents the real-time temperature value of the joint at position M; T1 represents the theoretical temperature value of the joint at position M in the absence of a fault, which is calculated by substituting a real-time electrical parameter value into the corresponding diagnostic model; T2 represents the average real-time temperature value of other joints in the same group at position M.

[0086] Table 1 Fault analysis and judgment logic

[0087] In an optional embodiment, upon receiving the alarm information and risk point location from the fault diagnosis unit, the intelligent protection unit will immediately prompt operations personnel to inspect and maintain the abnormal temperature location. For predicted level 1 or level 2 critical fault risk points (equivalent to level 2 and level 3 faults in this disclosure), the intelligent protection unit will also automatically adjust the device's operating state based on the risk point location to provide intelligent protection.

[0088] 1) The function of the intelligent protection unit to automatically adjust the device can be set to on or off. After it is turned on, the intelligent protection unit will automatically adjust the operating status of the high-voltage DC power supply cabinet to avoid risks;

[0089] 2) The intelligent protection unit divides and manages the tapping points of the high-voltage DC power supply cabinet by area. Figure 4 is a typical configuration block diagram of the high-voltage DC power supply cabinet according to an embodiment of the present disclosure. There are a total of eight tapping point areas: A, B, C, D, E, F, G, and H. The intelligent protection strategies for the tapping points in the same area are the same. The connection points in area A are mainly the connection points of the power supply line from the mains input to the ATS (automatic transfer switch) or circuit breaker; the connection points in area B are the connection points of the AC output busbar power supply line; the connection points in area C are the connection points of the power supply line from the AC busbar to each rectifier circuit breaker; the connection points in area D are the connection points of the power supply line from the rectifier circuit breaker to the rectifier input terminal; the connection points in area E are the connection points of the power supply line from each rectifier output terminal to the DC busbar; the connection points in area F are the connection points of the power supply line from the DC busbar to the load circuit breaker and the battery circuit breaker; the connection points in area G are the connection points of the power supply line from the battery circuit breaker to the battery; the connection points in area H are the connection points of the power supply line from the load circuit breaker to the load;

[0090] 3) When the intelligent protection unit receives the first and second level critical fault risk point alarms and risk point location numbers from the fault diagnosis unit, it will match the risk point location numbers to the eight areas mentioned above and then initiate corresponding protection measures based on the intelligent protection strategies for the corresponding areas;

[0091] 4) The intelligent protection strategy primarily shares the current carrying capacity of the fault location by adjusting the operating state of the HVDC equipment at the fault-free location, thereby reducing the temperature at the fault point and mitigating the risk. There are generally two adjustment methods: the first is to control the rectifier output through the communication bus to adjust the voltage, current, operating state, etc., and the other is to control the disconnection of the circuit breaker corresponding to the tapping point to achieve adjustment. For the first-level malignant fault risk point, the main method of adjustment is to reduce the current carrying capacity at that location, thereby reducing the tapping point temperature. For the second-level malignant fault risk point, due to the excessive temperature exceeding the standard and the high risk level, the power supply line at that location is disconnected to isolate the fault.

[0092] 5) The specific implementation strategy of the intelligent protection function in each area of ​​the high-voltage DC power supply cabinet is detailed in Table 2;

[0093] Table 2. Intelligent protection strategy

[0094] In the disclosed embodiment, the failure risk of high-voltage DC power supply cabinet equipment is effectively identified by temperature warning, and the risk is nipped in the bud. In addition, it is equipped with an intelligent protection function, which automatically takes measures to protect the equipment when the risk is high, preventing the spread of failures due to untimely manual response, and effectively solving the problem of serious failures, thereby improving the reliability of high-voltage DC equipment.

[0095] This embodiment also provides a device for adjusting the operating state of a power supply device. This device is used to implement the above-mentioned embodiments and preferred embodiments, and details already described will not be repeated. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0096] FIG5 is a structural block diagram of a device for adjusting the working state of a power supply device according to an embodiment of the present disclosure. As shown in FIG5 , the device includes:

[0097] An acquisition module 52 is configured to acquire parameter information of a first bonding point of a power supply device, wherein the parameter information includes: electrical parameters and a first temperature;

[0098] A determination module 54 is configured to determine fault prediction information of the first joint point based on the parameter information;

[0099] The adjustment module 56 is configured to adjust the working state of the power supply device according to the fault prediction information when the fault prediction information indicates that the first connection point has a fault.

[0100] The above-mentioned device obtains parameter information of a first connection point of a power supply device, wherein the parameter information includes: electrical parameters and a first temperature; determines fault prediction information of the first connection point based on the parameter information; and, if the fault prediction information indicates a fault at the first connection point, adjusts the operating state of the power supply device based on the fault prediction information. This disclosure solves the problem in related art where power supply devices are only equipped with an alarm system for after an abnormal condition occurs, and the fault can only be detected after it becomes severe enough to cause destructive phenomena, thus failing to prevent the occurrence of serious faults. This improves the safety of power supply devices.

[0101] In an exemplary embodiment, the determination module includes: a first determination module, determining the second temperature corresponding to each electrical parameter, and determining the temperature difference between the first temperature and each second temperature; determining the fault prediction information of the first joint based on the temperature difference between the first temperature and each second temperature.

[0102] In an exemplary embodiment, the first determination module is further configured to determine a parameter value corresponding to each electrical parameter, and to determine a square value of each parameter value; and to determine the second temperature based on the parameter value, the first weight corresponding to the parameter value, the square value, and the second weight corresponding to the square value.

[0103] In an exemplary embodiment, the first determining module is further configured to determine that a primary fault exists at the first joint when a temperature difference between the first temperature and any second temperature is greater than a first preset threshold and less than a second preset threshold;

[0104] When the temperature difference between the first temperature and any second temperature is greater than or equal to the second preset threshold and less than the third preset threshold, it is determined that the first joint has a second-level fault; when the temperature difference between the first temperature and any second temperature is greater than or equal to the third preset threshold, it is determined that the first joint has a third-level fault, wherein the risk levels indicated by the first-level fault, the second-level fault, and the third-level fault are different.

[0105] In an exemplary embodiment, the determination module further includes: a second determination module, determining the group corresponding to the first joint point, wherein the types of equipment units corresponding to the joint points in the same group are consistent; determining the average temperature of the second joint point in the group, and determining the temperature difference between the first temperature and the average temperature, wherein the second joint point is the other joint point in the group except the first joint point; determining the fault prediction information of the first joint point based on the temperature difference between the first temperature and the average temperature.

[0106] In an exemplary embodiment, the second determination module is further configured to determine that a first-level fault exists at the first joint when the temperature difference between the first temperature and the average temperature is greater than a first preset threshold and less than a second preset threshold; to determine that a second-level fault exists at the first joint when the temperature difference between the first temperature and the average temperature is greater than or equal to a second preset threshold and less than a third preset threshold; and to determine that a third-level fault exists at the first joint when the temperature difference between the first temperature and the average temperature is greater than or equal to a third preset threshold, wherein the risk levels indicated by the first-level fault, the second-level fault, and the third-level fault are different.

[0107] In an exemplary embodiment, the adjustment module includes: a control module, which controls the alarm module of the power supply device to issue an alarm message when the fault prediction information indicates that there is a first-level fault at the first joint; a third determination module, which determines the location area of ​​the first joint when the fault prediction information indicates that there is a second-level fault or a third-level fault at the first joint; and adjusts the working state of the power supply device according to the location area and the fault prediction information.

[0108] In an exemplary embodiment, the third determination module is further configured to: when the first tapping point is located in the first area, the third area, or the seventh area, and the fault prediction information indicates that there is a secondary fault at the first tapping point, prohibit the first load device from being supplied with power through the rectifier of the power supply device, and control the supply of power to the first load device through the DC power supply unit, wherein the first area is the power supply line from the AC power supply unit of the power supply device to the circuit breaker connected to the AC power supply unit, the third area is the power supply line from the monitoring unit of the power supply device to the AC busbar of the power supply device, and the seventh area is the The areas corresponding to the power supply lines from the DC busbar of the power supply device to the load circuit breaker and from the DC busbar to the battery circuit breaker, the load circuit breaker is a circuit breaker connected to the load device corresponding to the power supply device, and the battery circuit breaker is a circuit breaker connected to the DC power supply unit; when the first tapping point is located in the first area, the third area, or the seventh area, and the fault prediction information indicates that there is a level 3 fault at the first tapping point, the circuit breaker is controlled to be disconnected, and the DC power supply unit is controlled to supply power to the second load device corresponding to the power supply device, wherein the second load device at least includes: the first load device.

[0109] In an exemplary embodiment, the third determination module is further configured to: when the first tapping point is located in the second area and the fault prediction information indicates that there is a secondary fault at the first tapping point, control the automatic transfer switch of the power supply device to disconnect the connection with the mains power unit with risk, and establish a connection with the mains power unit without risk, wherein the second area is the power supply line from the AC power unit of the power supply device to the automatic transfer switch connected to the AC power unit, and the AC power unit includes: the mains power unit with risk and the mains power unit without risk; when the first tapping point is located in the second area and the fault prediction information indicates that there is a tertiary fault at the first tapping point, control the automatic transfer switch of the power supply device to disconnect the connection with the mains power unit with risk, and establish a connection with the mains power unit without risk.

[0110] In an exemplary embodiment, the third determination module is further configured to: when the first connection point is located in a fourth area, a fifth area, or a sixth area, and the fault prediction information indicates that a level 2 fault exists at the first connection point, prohibit powering the third load device through the rectifier corresponding to the first connection point, and power the third load device through other rectifiers of the power supply device, wherein the fourth area is a power supply line from the AC busbar of the power supply device to the rectifier circuit breaker of the power supply device, the fifth area is a power supply line from the rectifier circuit breaker to the rectifier of the power supply device, and the sixth area is a power supply line from the rectifier to the DC busbar of the power supply device, and the rectifier circuit breaker is a circuit breaker connected to the rectifier; when the first connection point is located in the fourth area, the fifth area, or the sixth area, and the fault prediction information indicates that a level 3 fault exists at the first connection point, control the rectifier circuit breaker corresponding to the first connection point to be disconnected, and control powering the second load device corresponding to the power supply device through the DC power supply unit, wherein the second load device at least includes: the third load device.

[0111] In an exemplary embodiment, the third determination module is further configured to: when the first tapping point is located in the eighth area and the fault prediction information indicates that there is a secondary fault at the first tapping point, prohibit the DC power supply unit corresponding to the first tapping point from supplying power to the fourth load device, and control the rectifier of the power supply device to supply power to the fourth load device, wherein the eighth area is the power supply line between the battery circuit breaker corresponding to the DC power supply unit and the DC power supply unit; when the first tapping point is located in the eighth area and the fault prediction information indicates that there is a third fault at the first tapping point, control the battery circuit breaker to disconnect, and control the load device corresponding to the DC power supply unit to supply power.

[0112] In an exemplary embodiment, the third determination module is further configured to: when the first tapping point is located in the ninth area and the fault prediction information indicates that there is a secondary fault at the first tapping point, control the load circuit breaker corresponding to the first tapping point to be disconnected, and control the fifth load device corresponding to the load circuit breaker to be powered through the DC power supply unit, wherein the ninth area is the power supply line between the load circuit breaker and the load device corresponding to the load circuit breaker; when the first tapping point is located in the ninth area and the fault prediction information indicates that there is a tertiary fault at the first tapping point, control the load circuit breaker corresponding to the first tapping point to be disconnected, and control the fifth load device corresponding to the load circuit breaker to be powered through the DC power supply unit.

[0113] It should be noted that the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0114] An embodiment of the present disclosure further provides a computer-readable storage medium, in which a computer program is stored. The computer program is configured to execute the steps of any one of the above method embodiments when run.

[0115] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0116] An embodiment of the present disclosure further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0117] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0118] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail here.

[0119] Obviously, those skilled in the art should understand that the modules or steps of the present disclosure described above can be implemented using a general-purpose computing device, they can be concentrated on a single computing device, or distributed across a network composed of multiple computing devices, they can be implemented using program code executable by the computing device, and thus, they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be performed in a different order than herein, or they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. Thus, the present disclosure is not limited to any particular combination of hardware and software.

[0120] The foregoing description is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, or improvements made within the principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A method for adjusting the working state of a power supply device, comprising: Acquire parameter information of a first bonding point of a power supply device, wherein the parameter information includes: electrical parameters and a first temperature; Determine the fault prediction information of the first joint point according to the parameter information; When the fault prediction information indicates that a fault exists at the first bonding point, the working state of the power supply device is adjusted according to the fault prediction information.

2. The method according to claim 1, wherein: Determining the fault prediction information of the first joint point according to the parameter information includes: Determine a second temperature corresponding to each electrical parameter, and determine a temperature difference between the first temperature and each second temperature; Fault prediction information of the first joint is determined according to a temperature difference between the first temperature and each second temperature.

3. The method according to claim 2, wherein: Determining a second temperature corresponding to each electrical parameter includes: Determine a parameter value corresponding to each electrical parameter, and determine a square value of each parameter value; The second temperature is determined according to the parameter value, the first weight corresponding to the parameter value, the square value, and the second weight corresponding to the square value.

4. The method according to claim 2, wherein: Determining the fault prediction information of the first joint point according to the temperature difference between the first temperature and each second temperature includes: When the temperature difference between the first temperature and any second temperature is greater than a first preset threshold value and less than a second preset threshold value, it is determined that a primary fault exists at the first joint; When the temperature difference between the first temperature and any second temperature is greater than or equal to a second preset threshold value and less than a third preset threshold value, it is determined that a secondary fault exists at the first joint; When the temperature difference between the first temperature and any second temperature is greater than or equal to a third preset threshold, it is determined that a third-level fault exists at the first joint, wherein the first-level fault, the second-level fault, and the third-level fault indicate different risk levels.

5. The method according to claim 1, wherein: Determining the fault prediction information of the first joint point according to the parameter information includes: Determine a group corresponding to the first bonding point, wherein the bonding points in the same group correspond to the same type of equipment units; Determine an average temperature of a second lap point in the group, and determine a temperature difference between the first temperature and the average temperature, wherein the second lap point is another lap point in the group except the first lap point; Fault prediction information of the first joint is determined according to a temperature difference between the first temperature and the average temperature.

6. The method according to claim 5, wherein: Determining fault prediction information of the first joint point according to a temperature difference between the first temperature and the average temperature includes: When the temperature difference between the first temperature and the average temperature is greater than a first preset threshold value and less than a second preset threshold value, it is determined that a primary fault exists at the first joint; When the temperature difference between the first temperature and the average temperature is greater than or equal to a second preset threshold and less than a third preset threshold, it is determined that a secondary fault exists at the first joint; When the temperature difference between the first temperature and the average temperature is greater than or equal to a third preset threshold, it is determined that a third-level fault exists at the first joint, wherein the first-level fault, the second-level fault, and the third-level fault indicate different risk levels.

7. The method according to claim 1, wherein: Adjusting the working state of the power supply device according to the fault prediction information includes: When the fault prediction information indicates that the first connection point has a primary fault, controlling an alarm module of the power supply device to issue an alarm message; When the fault prediction information indicates that the first connection point has a secondary fault or a tertiary fault, a location area of ​​the first connection point is determined; and a working state of the power supply device is adjusted according to the location area and the fault prediction information.

8. The method according to claim 7, wherein: Adjusting the working state of the power supply device according to the location area and the fault prediction information includes: When the first connection point is located in the first area, the third area, or the seventh area, and the fault prediction information indicates that there is a secondary fault at the first connection point, it is prohibited to supply power to the first load device through the rectifier of the power supply device, and the first load device is controlled to be supplied power through the DC power supply unit, wherein the first area is a power supply line from the AC power supply unit of the power supply device to the circuit breaker connected to the AC power supply unit, the third area is a power supply line from the monitoring unit of the power supply device to the AC busbar of the power supply device, and the seventh area is an area corresponding to the power supply line from the DC busbar of the power supply device to the load circuit breaker and from the DC busbar to the battery circuit breaker, the load circuit breaker is a circuit breaker connected to the load device corresponding to the power supply device, and the battery circuit breaker is a circuit breaker connected to the DC power supply unit; When the first tapping point is located in the first area, the third area or the seventh area, and the fault prediction information indicates that there is a third-level fault at the first tapping point, the circuit breaker is controlled to be disconnected, and the DC power supply unit is controlled to supply power to a second load device corresponding to the power supply device, wherein the second load device at least includes: the first load device.

9. The method according to claim 7, wherein: Adjusting the working state of the power supply device according to the location area and the fault prediction information includes: When the first connection point is located in the second area and the fault prediction information indicates that the first connection point has a secondary fault, the automatic transfer switch of the power supply device is controlled to disconnect the connection with the mains power unit with risk, and to establish a connection with the mains power unit without risk, wherein the second area is a power supply line from the AC power supply unit of the power supply device to the automatic transfer switch connected to the AC power supply unit, and the AC power supply unit includes: The mains power unit with risk and the mains power unit without risk; When the first tapping point is located in the second area and the fault prediction information indicates that there is a third-level fault at the first tapping point, the automatic transfer switch of the power supply device is controlled to disconnect the connection with the AC power unit with risk and establish a connection with the AC power unit without risk.

10. The method according to claim 7, wherein: Adjusting the working state of the power supply device according to the location area and the fault prediction information includes: When the first connection point is located in the fourth area, the fifth area, or the sixth area, and the fault prediction information indicates that there is a secondary fault at the first connection point, it is prohibited to power the third load device through the rectifier corresponding to the first connection point, and to power the third load device through other rectifiers of the power supply device, wherein the fourth area is a power supply line from the AC busbar of the power supply device to the rectifier circuit breaker of the power supply device, the fifth area is a power supply line from the rectifier circuit breaker to the rectifier of the power supply device, and the sixth area is a power supply line from the rectifier to the DC busbar of the power supply device, and the rectifier circuit breaker is a circuit breaker connected to the rectifier; When the first tapping point is located in the fourth area, the fifth area or the sixth area, and the fault prediction information indicates that there is a third-level fault at the first tapping point, the rectifier circuit breaker corresponding to the first tapping point is controlled to be disconnected, and the second load device corresponding to the power supply device is controlled to be powered through the DC power supply unit, wherein the second load device at least includes: the third load device.

11. The method according to claim 7, wherein: Adjusting the working state of the power supply device according to the location area and the fault prediction information includes: When the first connection point is located in an eighth area and the fault prediction information indicates that the first connection point has a secondary fault, it is prohibited to supply power to a fourth load device through a DC power supply unit corresponding to the first connection point, and the rectifier of the power supply device is controlled to supply power to the fourth load device, wherein the eighth area is a power supply line between a battery circuit breaker corresponding to the DC power supply unit and the DC power supply unit; When the first tapping point is located in the eighth area and the fault prediction information indicates that a third-level fault exists at the first tapping point, the battery circuit breaker is controlled to be disconnected, and a load device corresponding to the DC power supply unit is controlled to supply power.

12. The method according to claim 7, wherein: Adjusting the working state of the power supply device according to the location area and the fault prediction information includes: When the first connection point is located in a ninth area and the fault prediction information indicates that the first connection point has a secondary fault, the load circuit breaker corresponding to the first connection point is controlled to be disconnected, and the fifth load device corresponding to the load circuit breaker is controlled to be powered through a DC power supply unit, wherein the ninth area is a power supply line from the load circuit breaker to the load device corresponding to the load circuit breaker; When the first tapping point is located in the ninth area and the fault prediction information indicates that there is a third-level fault at the first tapping point, the load circuit breaker corresponding to the first tapping point is controlled to be disconnected, and the fifth load device corresponding to the load circuit breaker is powered by a DC power supply unit.

13. A device for adjusting the working state of a power supply device, comprising: An acquisition module is configured to acquire parameter information of a first bonding point of a power supply device, wherein the parameter information includes: an electrical parameter and a first temperature; a determination module, configured to determine fault prediction information of the first joint point according to the parameter information; The adjustment module is configured to adjust the working state of the power supply device according to the fault prediction information when the fault prediction information indicates that the first bonding point has a fault.

14. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method described in any one of claims 1 to 12 when executing the computer program.

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