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

Abstract

The embodiment of the invention provides a method and device for adjusting the working state of power equipment and an electronic device.The method comprises the steps that parameter information of a first lap joint point of the power equipment is obtained, and the parameter information comprises an electrical parameter and a first temperature; determining fault prediction information of the first lapping point according to the parameter information; and adjusting the working state of the power supply equipment according to the fault prediction information under the condition that the fault prediction information indicates that the first lap joint point has the fault. Through the method and the device, the problem that the occurrence of malignant events cannot be avoided because the power supply equipment is only equipped with an alarm system after the malignant events caused by faults in the prior art is solved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and specifically, to a method and device for adjusting the working state of a power supply device, and an electronic device. Background Art

[0002] At present, the power supply equipment in the industry (for example, high-voltage DC power supply cabinets) is only equipped with an alarm system after an abnormal situation occurs, and there is no early warning function. It is difficult for operation and maintenance personnel to predict the time and location of the failure in advance. In addition, the existence of the casing makes it difficult to detect internal faults of the equipment. They can only be discovered when the fault is severe enough to cause destructive phenomena. Often at this time, the loss is unavoidable, so many serious accidents cannot be prevented in time.

[0003] The problem that existing high-voltage DC manufacturers on the market have been unable to solve is how to avoid serious failures. For example, when the internal failure of the power cabinet deteriorates to a certain extent, it will cause fire and burn equipment and computer rooms, causing immeasurable losses to life and property. Combined with the characteristics of high-voltage DC and failure cases in the industry, the failure of power supply equipment is exposed from the connection point.

[0004] Therefore, the power supply equipment in the prior art is only equipped with an alarm system after a malicious event caused by a fault occurs, and the problem of the malicious event occurring cannot be avoided. Summary of the invention

[0005] The embodiments of the present application 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.

[0006] According to an embodiment of the present application, 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 according to the parameter information; and when the fault prediction information indicates that a fault exists at the first connection point, adjusting the working state of the power supply device according to the fault prediction information.

[0007] In an exemplary embodiment, determining the fault prediction information of the first joint based on the parameter information includes: 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.

[0008] In an exemplary embodiment, determining the second temperature corresponding to each electrical parameter includes: determining a parameter value corresponding to each electrical parameter, and determining a square value of each parameter value; determining the second temperature based on the parameter value, a first weight corresponding to the parameter value, the square value, and a second weight corresponding to the square value.

[0009] In an exemplary embodiment, fault prediction information of the first joint is determined based on the temperature difference between the first temperature and each second temperature, including: 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, determining that the first joint has a primary 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 a third preset threshold, determining that the first joint has a secondary fault; when the temperature difference between the first temperature and any second temperature is greater than or equal to the third preset threshold, determining that the first joint has a tertiary fault, wherein the risk levels indicated by the primary fault, the secondary fault, and the tertiary fault are different.

[0010] In an exemplary embodiment, fault prediction information of the first joint is determined based on the parameter information, including: determining a group corresponding to the first joint, wherein the types of equipment units corresponding to the joints in the same group are consistent; determining an average temperature of a second joint in the group, and determining a temperature difference between the first temperature and the average temperature, wherein the second joint is a joint point in the group other than the first joint; and determining the fault prediction information of the first joint based on the temperature difference between the first temperature and the average temperature.

[0011] In an exemplary embodiment, fault prediction information of the first joint is determined based on the temperature difference between the first temperature and the average temperature, including: 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, determining 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 the second preset threshold and less than a third preset threshold, determining that the first joint has a secondary fault; when the temperature difference between the first temperature and the average temperature is greater than or equal to the third preset threshold, determining that the first joint has a tertiary fault, wherein the risk levels indicated by the primary fault, the secondary fault, and the tertiary fault are different.

[0012] In an exemplary embodiment, 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 joint has a primary fault, controlling the alarm module of the power supply device to issue an alarm message; when the fault prediction information indicates that the first joint has a secondary fault or a tertiary fault, determining the location area of ​​the first joint; and adjusting the working state of the power supply device according to the location area and the fault prediction information.

[0013] In an exemplary embodiment, 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 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, 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 a power supply line from the AC power supply unit of the power supply device to a circuit breaker connected to the AC power supply unit, and 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. , the seventh area is the 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 connection point is located in the first area or 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 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.

[0014] In an exemplary embodiment, 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 the first tapping point has a secondary fault, controlling the automatic transfer switch of the power supply device to disconnect the connection with the mains power unit with risk, and establishing a connection with the mains power unit without risk, wherein the second area is a 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 the first tapping point has a tertiary fault, controlling the automatic transfer switch of the power supply device to disconnect the connection with the mains power unit with risk, and establishing a connection with the mains power unit without risk.

[0015] In an exemplary embodiment, 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 the first connection point has a secondary fault, prohibiting the rectifier corresponding to the first connection point from supplying power to the third load device, and supplying power to 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 the first connection point has a tertiary fault, controlling the rectifier circuit breaker corresponding to the first connection point to be disconnected, and controlling the DC power supply unit to supply power to the second load device corresponding to the power supply device, wherein the second load device at least includes: the third load device.

[0016] In an exemplary embodiment, 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 the first tapping point has a secondary fault, 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 the first tapping point has a tertiary fault, controlling the battery circuit breaker to disconnect, and controlling the load device corresponding to the DC power supply unit to supply power.

[0017] In an exemplary embodiment, 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 ninth area and the fault prediction information indicates that the first tapping point has a secondary fault, controlling the load circuit breaker corresponding to the first tapping point to be disconnected, and controlling the fifth load device corresponding to the load circuit breaker 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 the first tapping point has a tertiary fault, controlling the load circuit breaker corresponding to the first tapping point to be disconnected, and controlling the fifth load device corresponding to the load circuit breaker to be powered through a DC power supply unit.

[0018] According to another embodiment of the present application, a device for adjusting the working state of a power supply device is provided, including: an acquisition module for acquiring parameter information of a first connection point of the power supply device, wherein the parameter information includes: an electrical parameter, a first temperature; a determination module for determining fault prediction information of the first connection point based on the parameter information; and an adjustment module for adjusting the working state of the power supply device according to the fault prediction information when the fault prediction information indicates that a fault exists at the first connection point.

[0019] According to another embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when run.

[0020] According to another embodiment of the present application, 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 execute the steps in any one of the above method embodiments.

[0021] Through the present application, it is predicted whether the first connection point will fail based on the electrical parameters and temperature of the first connection point of the power supply device, and when a failure is predicted, the working state of the power supply device is automatically adjusted to intelligently protect the power supply device. Therefore, the problem that the power supply device in the related art is only equipped with an alarm system after a malicious event caused by a fault occurs, and the malicious event cannot be avoided, can be solved, thereby achieving the technical effect of improving the safety of the power supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It 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 application;

[0023] Figure 2 is a flow chart of a method for adjusting the working state of a power supply device according to an embodiment of the present application;

[0024] Figure 3 is a system block diagram of a high-voltage direct current temperature early warning intelligent control system according to an embodiment of the present application;

[0025] Figure 4 is a typical configuration block diagram of a high-voltage DC power supply cabinet according to an embodiment of the present application;

[0026] Figure 5 It 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 application. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0029] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 1 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 application. Figure 1 As shown, the computer terminal may include one or more ( Figure 1Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (Central Processing 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 communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0030] 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 application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above 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 examples, the memory 104 may further include a memory remotely arranged 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.

[0031] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0032] Figure 2 is a flow chart of adjusting the working state of a power supply device according to an embodiment of the present application, such as Figure 2 As shown, the process includes the following steps:

[0033] Step S202, obtaining parameter information of a first bonding point of a power supply device, wherein the parameter information includes: electrical parameters and a first temperature;

[0034] Electrical parameters include but are not limited to: current, voltage, and load rate.

[0035] Step S204, determining the fault prediction information of the first joint point according to the parameter information;

[0036] Optionally, determining the fault prediction information of the first connection point according to 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 according to the parameter information.

[0037] 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.

[0038] 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, 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, the risk level of the level two fault is higher than the risk level of the level three fault.

[0039] 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 minor 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 minor fault.

[0040] Among them, the probability of a malicious event caused by a minor fault is less than or equal to the first preset probability; the probability of a malicious event 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 device can reduce the probability of a malicious event by reducing the load corresponding to the tapping point; the probability of a malicious event caused by a severe fault is greater than the second preset probability, and the power supply device can reduce the probability of a malicious event by disconnecting all loads at the tapping point.

[0041] Through the above steps, the parameter information of the first connection point of the power supply device is obtained, wherein the parameter information includes: electrical parameters, first temperature; the fault prediction information of the first connection point is determined according to the parameter information; when the fault prediction information indicates that the first connection point has a fault, the working state of the power supply device is adjusted according to the fault prediction information. The problem that the power supply device in the related art is only equipped with an alarm system after an abnormal condition occurs, and the fault can only be discovered after it is severe enough to cause destructive phenomena, and the occurrence of malicious events cannot be avoided, thereby achieving the technical effect of improving the safety of the power supply device.

[0042] Optionally, the above step S204 can be implemented in a variety of ways. Two implementation methods are provided in the embodiment of the present application, including:

[0043] 1) Determine a second temperature corresponding to each electrical parameter, and determine a temperature difference between the first temperature and each second temperature; determine fault prediction information of the first joint according to the temperature difference between the first temperature and each second temperature.

[0044] Specifically, 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 value and less than a second preset threshold value, it is determined that the first joint has a first-level fault; when the temperature difference between the first temperature and any second temperature is greater than or equal to the second preset threshold value and less than the third preset threshold value, 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 value, it is determined that the first joint has a third-level fault.

[0045] 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.

[0046] 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 overlap point 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 overlap point temperature value; X1, X2, X3…Xn represent electrical parameters such as current, voltage, and load rate used for fault diagnosis respectively; 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 overlap point, 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 satisfy any range of the calculated theoretical temperature values, it is determined that there is a fault at the first overlap point.

[0047] Furthermore, the electrical parameters in the embodiment of the present invention are electrical parameters obtained in real time, the first temperature is a temperature value obtained in real time, the corresponding real-time theoretical temperature value is determined according to the real-time electrical parameters, and the fault prediction information of the first joint is determined by the difference between the real-time theoretical temperature value and the real-time temperature value. Therefore, through the embodiment of the present invention, 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.

[0048] 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 any second 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 any second 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; when 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 joint has a tertiary fault. It should be noted that the embodiments of the present application do not limit the specific values ​​of the first preset threshold, the second preset threshold, and the third preset threshold.

[0049] 2) Determine the group corresponding to the first overlap point, wherein the types of equipment units corresponding to the overlap points in the same group are consistent; determine the average temperature of the second overlap point in the group, and determine the temperature difference between the first temperature and the average temperature, wherein the second overlap point is the overlap point other than the first overlap point in the group; determine the fault prediction information of the first overlap point according to the temperature difference between the first temperature and the average temperature.

[0050] Specifically, 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 the first joint has a first-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 third-level fault.

[0051] 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.

[0052] It is understandable that when the equipment is operating normally, the temperature values ​​of the joints in the same group are basically close, so if the difference between the first temperature and the average temperature of a joint is too large, it means that there is a fault at the joint. For example, the joints at the same position are grouped together, and the temperature values ​​of the joints at the same position are T1, T2, T3...Tn. When the equipment is operating normally, the temperature values ​​of the joints at the same position are theoretically consistent, that is, T1≈T2≈T3≈...≈Tn. If it is found that the temperature value T1 of a joint is too different from the average value of the temperature values ​​of other rectifiers (T2+T3+...+Tn) / (n-1), it means that there is a fault at the joint.

[0053] It can be understood 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; 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 application do not limit the specific values ​​of the above-mentioned first preset threshold, the second preset threshold, and the third preset threshold.

[0054] Optionally, the above-mentioned step S206 can be implemented in the following ways: when the fault prediction information indicates that there is a first-level fault at the first joint, controlling 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, determining the location area of ​​the first joint; and adjusting the working state of the power supply device according to the location area and the fault prediction information.

[0055] The alarm module of the power supply device is controlled to send alarm information in one of the following ways: 1) the alarm module of the power supply device is controlled to send an alarm prompt sound; 2) the display component of the alarm module of the power supply device is controlled to display an alarm prompt light.

[0056] 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 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, 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 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 The seventh area is an area 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 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 the second load device corresponding to the power supply device, wherein the second load device at least includes: the first load device.

[0057] The above monitoring unit can be understood as: a circuit breaker connected to the AC power supply unit, and an automatic transfer switch connected to the AC power supply unit.

[0058] It is understandable that the first region can be understood as follows Figure 4 The A area in the scene 1 shown is mainly the power supply line from the mains (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 follows Figure 4 The B area shown 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 follows Figure 4 The F area shown is mainly the power supply line from the DC busbar to the load circuit breaker and the battery circuit breaker.

[0059] When the first lap point is located Figure 4 When the fault prediction information indicates that the first connection point has a secondary fault, some or all rectifiers are adjusted to reduce the load, and a DC power supply unit (for example, a battery) is used to share part of the load to reduce the current carrying capacity of the fault connection point; when the first connection point is located at Figure 4In the case where the fault prediction information indicates that there is a third-level fault at a certain position on A, B or F in scenario 1, the circuit breaker is controlled to be disconnected and the load is completely powered by the DC power supply unit.

[0060] 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 the first tapping point has a secondary fault, controlling the automatic transfer switch of the power supply device to disconnect the connection with the mains power unit with risk, and establishing 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 the first tapping point has a tertiary fault, controlling the automatic transfer switch of the power supply device to disconnect the connection with the mains power unit with risk, and establishing a connection with the mains power unit without risk.

[0061] It is understandable that the second region can be understood as follows Figure 4 Area A in the second scenario shown is mainly the power supply line from the mains to the ATS (automatic transfer switch). Figure 4 When the fault prediction information indicates that the first connection point has a secondary fault, the ATS is controlled to switch to the mains without risk; when the first connection point is located at a certain position on A in scenario 2, the fault prediction information indicates that the first connection point has a secondary fault, the ATS is controlled to switch to the mains without risk; Figure 4 In a certain position on A in scenario 2 and when the fault prediction information indicates that there is a third-level fault at the first connection point, the ATS is controlled to switch to the mains power without risk.

[0062] Optionally, 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 the first connection point has a secondary fault, prohibiting the third load device from being powered by the rectifier corresponding to the first connection point, and powering 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 the first connection point has a tertiary fault, controlling the rectifier circuit breaker corresponding to the first connection 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.

[0063] It is understandable that the fourth region can be understood as follows Figure 4 The C area shown is mainly the power supply line between the AC busbar and each rectifier circuit breaker; the fifth area can be understood as follows Figure 4 The D area shown 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 follows Figure 4 The E region shown is mainly the power supply line between the output end of each rectifier and the DC busbar.

[0064] When the first lap point is located Figure 4 When the fault prediction information indicates that the first connection point has a secondary fault, the rectifier corresponding to the fault position is adjusted to reduce the load, and other rectifiers are adjusted to load to share the load; when the first connection point is located at Figure 4 When a certain position on C, D or E and the fault prediction information indicates that there is a third-level fault at the first connection point, the circuit breaker of the rectifier at the fault position is controlled to be disconnected, and the loading of other rectifiers is adjusted to share the load.

[0065] 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 tertiary 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.

[0066] It is understandable that the eighth region can be understood as follows Figure 4 The G area shown is mainly the power supply line from the battery circuit breaker to the battery.

[0067] When the first lap point is located Figure 4 When the fault prediction information indicates that the first connection point has a secondary fault, the rectifier load is adjusted and the battery load is reduced; when the first connection point is located at a certain position on the G Figure 4 When the battery circuit breaker is disconnected from a certain position on the G and the fault prediction information indicates that the first connection point has a third-level fault.

[0068] 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 ninth area and the fault prediction information indicates that the first tapping point has a secondary fault, controlling the load circuit breaker corresponding to the first tapping point to be disconnected, and controlling the fifth load device corresponding to the load circuit breaker to be powered through a DC power supply unit, wherein the ninth area is a 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 the first tapping point has a tertiary fault, controlling the load circuit breaker corresponding to the first tapping point to be disconnected, and controlling the fifth load device corresponding to the load circuit breaker to be powered through a DC power supply unit.

[0069] It is understandable that the ninth area can be understood as follows Figure 4 The H area shown is mainly the power supply line from the load circuit breaker to the load.

[0070] When the first lap point is located Figure 4When the first connection point is at a certain position on the H and the fault prediction information indicates that the first connection point has a secondary fault, the load circuit breaker is disconnected and the backup power supply line of the load is enabled; when the first connection point is at Figure 4 When the load circuit breaker is disconnected and the backup power supply line of the load is enabled, the load circuit breaker is disconnected and the backup power supply line of the load is enabled.

[0071] 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 used to limit the technical solution of the embodiment of the present application.

[0072] like Figure 3 is a system block diagram of a high voltage direct current temperature early warning intelligent control system according to an embodiment of the present application, such as Figure 3 As shown, the system block diagram mainly includes a data acquisition unit, a fault diagnosis unit, and an intelligent protection unit.

[0073] The data acquisition unit is used to collect the temperature and electrical parameters of multiple important bonding points on the high-voltage DC equipment and upload them to the fault diagnosis unit.

[0074] The fault diagnosis unit is used to predict the fault risk point through algorithm analysis of the received temperature and electrical parameter data, and send an alarm to the intelligent protection unit based on the prediction result.

[0075] The intelligent protection unit is used to prompt the operation and maintenance personnel to go to the site to inspect and maintain the specific fault location of the equipment according to the alarm information. For risk points predicted to be malignant faults, the intelligent protection unit will automatically adjust the working status of the equipment according to the location of the risk point to provide intelligent protection for the equipment.

[0076] 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 in the hardware.

[0077] 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.

[0078] 1) Temperature acquisition can be achieved by using sensor measurement circuit solutions such as platinum resistance, NTC, PTC, thermocouple, optical fiber, etc.;

[0079] 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;

[0080] 3) The joint points where data needs to be collected cover all spatial areas of the high-voltage DC power supply cabinet, especially the joint points 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.

[0081] In an optional embodiment, the fault diagnosis unit performs fault prediction on the received joint temperature and electrical parameters through algorithm analysis, and sends an alarm to the intelligent protection unit according to the prediction result.

[0082] 1) The fault diagnosis unit mainly performs fault diagnosis by comparative analysis. The embodiment of the present application provides two comparative analysis methods. When it is confirmed that the high-voltage DC power supply cabinet has a fault by one of the comparative analysis methods, it is determined that the high-voltage DC power supply cabinet has a fault:

[0083] Method 1: Substitute the received temperature and electrical parameter data into the diagnostic model for comparative analysis to determine the abnormal temperature value; 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 by the least squares method using the joint temperature and electrical parameter data (factory test data) under normal equipment operation conditions (no faults). Due to the strong correlation between temperature and electrical parameters, the quadratic regression model can meet the error requirements; for example, the regression model of a joint position is as follows:

[0084] T=k(a1X1 2 +b1X1+c1)

[0085] T=k(a2X2 2 +b2X2+c2)

[0086] T=k(a3X3 2 +b3X3+c3)

[0087] …

[0088] T=k(anXn 2 +bnXn+cn)

[0089] T represents the temperature value of the joint point; X1, X2, X3, Xn represent electrical parameters such as current, voltage, and load rate used for fault diagnosis respectively; 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.

[0090] When performing 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 the high-voltage DC power supply cabinet has a failure risk.

[0091] Method 2: The joint points on the high-voltage DC power supply cabinet are grouped. When the equipment is operating normally, the temperature values ​​of the joint points in the same group are basically close, and the diagnostic model is the same. The abnormal joint points are determined by comparing and analyzing the temperature data of the joint points in the same group.

[0092] For example, the joints at the same position of each rectifier in a high-voltage DC power supply cabinet can be divided into a group, and the 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 position of a rectifier is found to be the average of the temperature values ​​of other rectifiers, If the phase difference is too large, it means that there is a fault at the corresponding overlap point of the rectifier.

[0093] 2) Number each joint position and group the joints according to their characteristics. Then, collect the electrical parameters and temperature data of each joint position cyclically, correspond them to the position number, and substitute them into the corresponding diagnostic model for comparative analysis. According to the difference between the real-time temperature value and the theoretical temperature value, predict whether there is a fault risk at the joint. 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.

[0094] The fault judgment logic refers to Table 1, 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 value of the real-time temperature values ​​of other joints in the same group at position M;

[0095] Table 1 Fault analysis judgment logic

[0096]

[0097] In an optional embodiment, after receiving the alarm information and risk point location number sent by the fault diagnosis unit, the intelligent protection unit will immediately prompt the operation and maintenance personnel to check and maintain the abnormal temperature location. For the predicted results of the first and second level malignant fault risk points (equivalent to the second level fault and third level fault in this application), the intelligent protection unit will also automatically adjust the working state of the equipment according to the risk point location to perform intelligent protection on the equipment.

[0098] 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;

[0099] 2) The intelligent protection unit manages the connection points of the high-voltage DC power supply cabinet by area. Figure 4 This is a typical configuration block diagram of a high-voltage DC power supply cabinet according to an embodiment of the present application, which is divided into eight tapping point areas, namely A, B, C, D, E, F, G, and H. The tapping points in the same area have the same intelligent protection strategy. The tapping points in area A are mainly the tapping points of the power supply line from the AC input to the ATS (automatic transfer switch) or the circuit breaker; the tapping points in area B are the tapping points of the AC output busbar power supply line; the tapping points in area C are the tapping points of the power supply line from the AC busbar to each rectifier circuit breaker; the tapping points in area D are the tapping points of the power supply line from the rectifier circuit breaker to the rectifier input terminal; the tapping points in area E are the tapping points of the power supply line from each rectifier output terminal to the DC busbar; the tapping points in area F are the tapping points of the power supply line from the DC busbar to the load circuit breaker and the battery circuit breaker; the tapping points in area G are the tapping points of the power supply line from the battery circuit breaker to the battery; the tapping points in area H are the tapping points of the power supply line from the load circuit breaker to the load;

[0100] 3) When the intelligent protection unit receives the first-level and second-level malignant fault risk point alarms and risk point location numbers issued by the fault diagnosis unit, it will match the risk point location numbers to the above eight areas, and then start the corresponding protection measures according to the intelligent protection strategies of the corresponding areas;

[0101] 4) The strategy of intelligent protection is mainly to share the current carrying capacity of the faulty position by adjusting the working state of the fault-free position of the high-voltage DC equipment, thereby reducing the temperature of the fault point and reducing the risk; there are generally two ways of adjustment. The first is to control the rectifier output through the communication bus to adjust the voltage, current, working state, etc. The other is to adjust by controlling the disconnection of the circuit breaker corresponding to the joint position; for the first-level malignant fault risk point, it is mainly adjusted by reducing the current carrying capacity of the position, thereby reducing the temperature of the joint point; for the second-level malignant fault risk point, because the temperature exceeds the standard too much and the risk level is high, it is adjusted by disconnecting the power supply line at the position to play the role of isolating the fault;

[0102] 5) The specific implementation strategies of the intelligent protection functions in each area of ​​the high-voltage DC power supply cabinet are detailed in Table 2;

[0103] Table 2. Intelligent protection strategy

[0104]

[0105]

[0106] In the embodiment of the present application, the failure risk of the high-voltage DC power supply cabinet equipment is effectively identified by means of temperature warning, and the risk is nipped in the bud. In addition, it is equipped with an intelligent protection function. When the risk is high, measures are automatically taken to protect the equipment to prevent the spread of failures due to untimely manual response, effectively solve the problem of malicious failures, and thus improve the reliability of high-voltage DC equipment.

[0107] In this embodiment, a device for adjusting the working state of a power supply device is also provided, and the device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made are not repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0108] Figure 5 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 application, such as Figure 5 As shown, the device comprises:

[0109] The acquisition module 52 is used to acquire parameter information of a first bonding point of the power supply device, wherein the parameter information includes: electrical parameters and a first temperature;

[0110] A determination module 54, configured to determine fault prediction information of the first joint point according to the parameter information;

[0111] 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 bonding point has a fault.

[0112] Through the above device, the parameter information of the first connection point of the power supply device is obtained, wherein the parameter information includes: electrical parameters, first temperature; the fault prediction information of the first connection point is determined according to the parameter information; when the fault prediction information indicates that the first connection point has a fault, the working state of the power supply device is adjusted according to the fault prediction information. Through this application, the problem that the power supply device in the related art is only equipped with an alarm system after an abnormal condition occurs, and the fault can only be discovered after it is severe enough to cause destructive phenomena, and the occurrence of malicious faults cannot be avoided is solved, thereby achieving the technical effect of improving the safety of the power supply device.

[0113] 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 according to the temperature difference between the first temperature and each second temperature.

[0114] In an exemplary embodiment, the first determination module is also used 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 according to the parameter value, a first weight corresponding to the parameter value, the square value, and a second weight corresponding to the square value.

[0115] In an exemplary embodiment, the first determination 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;

[0116] 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.

[0117] In an exemplary embodiment, the determination module also 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.

[0118] In an exemplary embodiment, the second determination module is further used to determine that the first joint has a primary fault 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 the first joint has a secondary fault 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 the first joint has a tertiary fault 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 primary fault, the secondary fault, and the tertiary fault are different.

[0119] 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 the first joint has a primary fault; a third determination module, which determines the location area of ​​the first joint when the fault prediction information indicates that the first joint has a secondary fault or a tertiary fault; and adjusts the working state of the power supply device according to the location area and the fault prediction information.

[0120] In an exemplary embodiment, the third determination module is also used 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 powered by the rectifier of the power supply device, and control the first load device to be powered by 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 The area corresponding to the power supply line from the DC busbar to the load circuit breaker and from the DC busbar to the battery circuit breaker of the power supply device, 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 the second load device corresponding to the power supply device, wherein the second load device at least includes: the first load device.

[0121] In an exemplary embodiment, the third determination module is also used 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.

[0122] In an exemplary embodiment, the third determination module is further used for: 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 the first connection point has a secondary fault, prohibiting the third load device from being powered by the rectifier corresponding to the first connection point, and powering 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 the first connection point has a third fault, controlling the rectifier circuit breaker corresponding to the first connection 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.

[0123] In an exemplary embodiment, the third determination module is also used for: when the first tapping point is located in the eighth area and the fault prediction information indicates that the first tapping point has a secondary fault, prohibiting the fourth load device from being powered by the DC power supply unit corresponding to the first tapping point, and controlling the fourth load device to be powered by the rectifier of the power supply 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 the first tapping point has a tertiary fault, controlling the battery circuit breaker to be disconnected, and controlling the load device corresponding to the DC power supply unit to be powered.

[0124] In an exemplary embodiment, the third determination module is also used to: when the first tapping point is located in the ninth area and the fault prediction information indicates that the first tapping point has a secondary fault, 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 by a 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 the first tapping point has a tertiary fault, 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 by a DC power supply unit.

[0125] It should be noted that the above modules can be implemented by 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.

[0126] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0127] 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.

[0128] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0129] 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.

[0130] 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 herein.

[0131] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that 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 executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0132] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for adjusting the working state of a power supply device, characterized in that: include: 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, characterized in that 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, characterized in that 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, characterized in that: 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that: 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 a second area and the fault prediction information indicates that the first tapping 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 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 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that: include: An acquisition module, used 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; An adjustment module is used 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, characterized in that: When the processor executes the computer program, the steps of the method described in any one of claims 1 to 12 are implemented.

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