Automatic transfer method and system, and computer-readable storage medium

Abstract

Provided in the embodiments of the present application are an automatic transfer method and system, and a computer-readable storage medium, which are applied to a power system, wherein the power system comprises: a first bus section, a second bus section, a first incoming line, a second incoming line, a third incoming line and a segmented circuit. The automatic transfer method comprises: in an initial state, a first bus section being energized by means of a first incoming line, and a first circuit breaker being in a closed state; a second bus section being energized by means of a second incoming line, and a second circuit breaker being in the closed state; a third circuit breaker being in an open state; a fourth circuit breaker being in the open state; and in the case where a third power supply is in a power supply state, when the first incoming line is de-energized and the second incoming line is de-energized, or when the first incoming line is de-energized, the second incoming line is energized and the fourth circuit breaker is in a state of being unable to be closed, triggering the third circuit breaker to be closed. By using the embodiment, it is beneficial to improving the operation stability of an automatic transfer system.

Description

A backup power supply automatic switching method, system and computer readable storage medium

[0001] The present application claims priority from the Chinese patent application No. 202411001387.2 filed on July 24, 2024 in the China Patent Office and entitled "A backup power supply automatic switching method, system and computer readable storage medium", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of power systems, in particular to a backup power supply automatic switching method, system and computer readable storage medium. BACKGROUND

[0003] Single-bus sectionalization connection mode is commonly used in power systems, which usually includes two incoming lines, two bus sections, and a sectionalizing switch connecting the two bus sections. In the prior art, an incoming line backup power supply automatic switching device or a sectionalization backup power supply automatic switching device is usually configured. When the power supply of an incoming line is lost, an incoming line self-recovery backup power supply automatic switching device needs to be added. However, when both incoming lines lose power, the related backup power supply automatic switching device cannot guarantee normal power supply for the load.

[0004] Therefore, how to provide a backup power supply automatic switching method that can adapt to various working conditions to improve the stability of the backup power supply automatic switching system is a technical problem to be solved. TECHNICAL PROBLEM

[0005] The present application provides a backup power supply automatic switching method, system and computer readable storage medium, which can improve the stability of the backup power supply automatic switching system. TECHNICAL SOLUTION

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions.

[0007] In a first aspect, an embodiment of the present application provides a backup power supply automatic throw-in method, applied to a power system, the power system comprising: a first bus section, a second bus section, a first incoming line comprising a first power supply and a first circuit breaker, a second incoming line comprising a second power supply and a second circuit breaker, a third incoming line comprising a third power supply and a third circuit breaker, and a sectional circuit comprising a fourth circuit breaker connected with the first bus section and the second bus section; wherein the first power supply supplies power to the first bus section through the first circuit breaker, the second power supply supplies power to the second bus section through the second circuit breaker, and the third power supply supplies power to the first bus section through the third circuit breaker; the method comprising: in an initial state, the first bus section obtains power through the first incoming line, and the first circuit breaker is in a closed state; the second bus section obtains power through the second incoming line, and the second circuit breaker is in a closed state; the third circuit breaker is in an open state; and the fourth circuit breaker is in an open state; when the third power supply is in a power supply state, the first incoming line has no power, and at the same time, the second incoming line has no power, or the first incoming line has no power, the second incoming line has power, and at the same time, the fourth circuit breaker is in a state of being unable to be closed, the third circuit breaker is triggered to be closed.

[0008] The technical scheme provided by the embodiment adds the third power supply and the corresponding circuit relative to the traditional backup power supply automatic throw-in system, so that when the first incoming line and the second incoming line have no power, the third circuit breaker is triggered to be closed, and the first bus can be supplied with power by the third power supply. Similarly, when the first incoming line has no power, the second incoming line has power, and at the same time, the fourth circuit breaker is in a state of being unable to be closed, the third circuit breaker is triggered to be closed, and the first bus can be supplied with power by the third power supply. Therefore, the embodiment is beneficial to improving the stability of the operation of the backup power supply automatic throw-in system.

[0009] In a possible implementation, the method further comprises: when the first bus section and the second bus section are in a normal operation state, if it is detected that the first bus section loses voltage, the first circuit breaker is triggered to be opened, and the fourth circuit breaker is triggered to be closed.

[0010] In the above scheme, the sectional backup power supply automatic throw-in method when the first bus loses power is introduced, the first circuit breaker is triggered to be opened, and the fourth circuit breaker is triggered to be closed.

[0011] In a possible implementation, the method further comprises: when the first bus section and the second bus section are in a normal operation state, if it is detected that the second bus section loses voltage, the second circuit breaker is triggered to be opened, and the fourth circuit breaker is triggered to be closed.

[0012] In the above scheme, the sectional backup power supply automatic throw-in method when the second bus loses power is introduced, the second circuit breaker is triggered to be opened, and the fourth circuit breaker is triggered to be closed.

[0013] In a possible implementation, the method further includes: when the first bus section and the second bus section are both voltage-loss and the second incoming line is energized, triggering the first breaker to trip and triggering the second breaker to close, when the first power supply supplies power to the first bus section and the second bus section.

[0014] In the foregoing solution, when the first bus section and the second bus section are both voltage-loss and the second incoming line is energized, triggering the first breaker to trip and triggering the second breaker to close, when the first power supply supplies power to the first bus section and the second bus section, this embodiment describes the first incoming line backup power supply.

[0015] In a possible implementation, the method further includes: when the first bus section and the second bus section are both voltage-loss and the first incoming line is energized, triggering the second breaker to trip and triggering the first breaker to close, when the second power supply supplies power to the first bus section and the second bus section.

[0016] In the foregoing solution, when the first bus section and the second bus section are both voltage-loss and the first incoming line is energized, triggering the second breaker to trip and triggering the first breaker to close, when the second power supply supplies power to the first bus section and the second bus section, this embodiment describes the second incoming line backup power supply.

[0017] In a possible implementation, the method further includes: when the fourth breaker is in a closed state and the first bus section and the second bus section are supplied with power by the second power supply, if the first incoming line is energized, triggering the fourth breaker to trip and triggering the first breaker to close.

[0018] In the foregoing solution, when the fourth breaker is in a closed state and the first bus section and the second bus section are supplied with power by the second power supply, if the first incoming line is energized, triggering the fourth breaker to trip and triggering the first breaker to close, this embodiment describes the first incoming line self-recovery.

[0019] In a possible implementation, the method further includes: when the fourth breaker is in a closed state and the first bus section and the second bus section are supplied with power by the first power supply, if the second incoming line is energized, triggering the fourth breaker to trip and triggering the second breaker to close.

[0020] In the foregoing solution, when the fourth breaker is in a closed state and the first bus section and the second bus section are supplied with power by the first power supply, if the second incoming line is energized, triggering the fourth breaker to trip and triggering the second breaker to close, this embodiment describes the second incoming line self-recovery.

[0021] In a possible implementation, the power supply priority of the load connected to the first bus section is higher than the power supply priority of the load connected to the second bus section.

[0022] In the above solution, the power supply priority of the load connected to the first bus section is higher than the power supply priority of the load connected to the second bus section, so that the load with higher power supply priority can be ensured to operate more stably.

[0023] In a possible implementation, when the first bus section is connected to multiple loads, the connection of the load with a power supply priority lower than a first preset value to the first bus section is disconnected when the third circuit breaker is closed.

[0024] In the above solution, the connection of the load with a power supply priority lower than a first preset value to the first bus section is disconnected when the third circuit breaker is closed. In this way, the load with higher power supply priority can be ensured to operate more stably.

[0025] In a second aspect, an example of the present application provides a backup power automatic switching system, comprising: a processor, a first bus section, a second bus section, a first incoming line comprising a first power supply and a first circuit breaker, a second incoming line comprising a second power supply and a second circuit breaker, a third incoming line comprising a third power supply and a third circuit breaker, and a sectional circuit comprising a fourth circuit breaker connected to the first bus section and the second bus section; wherein the first power supply supplies power to the first bus section through the first circuit breaker, the second power supply supplies power to the second bus section through the second circuit breaker, and the third power supply supplies power to the first bus section through the third circuit breaker; in an initial state, the first bus section is powered through the first incoming line, and the first circuit breaker is in a closed state; the second bus section is powered through the second incoming line, and the second circuit breaker is in a closed state; the third circuit breaker is in an open state; the fourth circuit breaker is in an open state; when the third power supply is in a power supply state, the first incoming line is unpowered, and the second incoming line is unpowered at the same time, or the first incoming line is unpowered, the second incoming line is powered, and the fourth circuit breaker is in a state where it cannot be closed at the same time, the processor triggers the third circuit breaker to be closed.

[0026] In a third aspect, an example of the present application provides a computer readable storage medium, comprising computer instructions, when the computer instructions run on an electronic device, the electronic device executes the method provided by the first aspect and any possible implementation manner thereof.

[0027] It can be understood that the beneficial effects that can be achieved by the backup power automatic switching system of the second aspect and the computer readable storage medium of the third aspect provided above can refer to the beneficial effects of the first aspect, and will not be described again. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1A is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0029] Fig. 1B is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0030] Fig. 1C is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0031] Fig. 1D is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0032] Fig. 1E is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0033] Fig. 1F is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0034] Fig. 1G is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0035] Fig. 1H is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0036] Fig. 2A is a schematic diagram of a logic of a backup power automatic throw-over system according to an embodiment of the present application;

[0037] Fig. 2B is a schematic diagram of a logic of a backup power automatic throw-over system according to an embodiment of the present application;

[0038] Fig. 3A is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0039] Fig. 3B is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application;

[0040] Fig. 4 is a schematic diagram of one state of a backup power automatic throw-over system according to an embodiment of the present application. Embodiments of the present application

[0041] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B; "and / or" in this document only represents the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0042] Hereinafter, the terms "first", "second", "third" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can be explicitly or implicitly included one or more of the features.

[0043] Fig. 1A is a schematic diagram of one state of the backup power supply system provided by an embodiment of the present application, as can be seen from Fig. 1A, the power system comprises: a first bus section Bus1, a second bus section Bus2, a first incoming line 101 comprising a first power supply and a first circuit breaker CB01, a second incoming line 102 comprising a second power supply and a second circuit breaker CB02, a third incoming line 103 comprising a third power supply and a third circuit breaker CB03, and a section circuit 104 comprising a fourth circuit breaker CB04 connected with the first bus section Bus1 and the second bus section Bus2; wherein the first power supply supplies power to the first bus section Bus1 through the first circuit breaker CB01, the second power supply supplies power to the second bus section Bus2 through the second circuit breaker CB02, and the third power supply supplies power to the first bus section Bus1 through the third circuit breaker CB03; the backup power supply method comprises: in the initial state, the first bus section Bus1 is powered through the first incoming line 101, and the first circuit breaker CB01 is in a closed state; the second bus section Bus2 is powered through the second incoming line 102, and the second circuit breaker CB02 is in a closed state; the third circuit breaker CB03 is in an open state; the fourth circuit breaker CB04 in the section circuit 104 is in an open state; as shown in Fig. 1B and Fig. 1C, in the third power supply state, the first incoming line 101 loses power, and at the same time the second incoming line 102 loses power (wherein Fig. 1B corresponds to the scenario that the fourth circuit breaker CB04 is in a state that cannot be closed, and Fig. 1C corresponds to the scenario that the fourth circuit breaker CB04 is in a closed state), or as shown in Fig. 1D, the first incoming line 101 loses power, the second incoming line 102 is powered, and at the same time the fourth circuit breaker CB04 is in a state that cannot be closed, the third circuit breaker CB03 is closed.

[0044] The technical solution provided by the embodiment adds a third power supply and corresponding circuit relative to the traditional backup power supply system, so that when both the first incoming line and the second incoming line lose power, the third circuit breaker is triggered to be closed, and the third power supply can be used to supply power to the first bus section. Similarly, when the first incoming line loses power, the second incoming line is powered, and at the same time the fourth circuit breaker is in a state that cannot be closed, the third circuit breaker is triggered to be closed, and the third power supply can be used to supply power to the first bus section. Therefore, the embodiment is conducive to improving the stability of the backup power supply system.

[0045] It should be noted that the backup power supply generally includes: sectional backup power supply, incoming line backup power supply, incoming line self-recovery backup power supply, third power supply backup power supply, etc., and the embodiments of the present application are applicable to several typical backup power supply modes under the single bus sectional wiring mode.

[0046] In some possible implementation manners, the third power supply can be a diesel engine, and of course can also be other types of power supply, which are not limited herein.

[0047] In some possible implementation manners, since the third incoming line is connected to the first bus section Bus1, the first bus section Bus1 can be powered in specific cases, and in order to improve the stability of load operation, the power supply priority of the load connected to the first bus section Bus1 can be higher than the power supply priority of the load connected to the second bus section Bus2. As shown in FIG. 1A, in one possible implementation manner, the load of the first bus section Bus1 is the branch corresponding to identifier 105 in FIG. 1A, and specifically, the load (not shown in the figure) is connected through three circuit breakers CB05, CB06 and CB07. The load of the second bus section Bus2 is the branch corresponding to identifier 106 in FIG. 1A, and specifically, the load (not shown in the figure) is connected through circuit breaker CB08.

[0048] In this embodiment, in order to guarantee the stable operation of the load with high power supply priority, the third incoming line can be connected to the bus section connected to the load with high power supply priority, and when the load with high power supply priority is connected to the first bus section Bus1, the third incoming line is connected to the first bus section Bus1. For example, the power supply priority of the load connected through circuit breakers CB05, CB06 and CB07 can be higher than the power supply priority of the load connected through circuit breaker CB08, and the first bus section Bus1 is powered by the third power supply. As shown in FIG. 1E, the circuit breakers CB05, CB06 and CB07 are in the closed state, so that the loads connected to the circuit breakers CB05, CB06 and CB07 can continue to operate and are not affected by the power failure of the first incoming line. It can be understood that the number of loads connected to the first bus section Bus1 and the second bus section Bus2 is not fixed to 3 and 1, and according to actual conditions, the number of loads can also be other values, which are all feasible, and are not limited herein.

[0049] By using this embodiment, since the first bus section can be powered by the third power supply, the power supply priority of the load connected to the first bus section is higher than the power supply priority of the load connected to the second bus section, so that the load with high power supply priority can be guaranteed to operate more stably.

[0050] It can be understood that in some possible embodiments, in addition to some important loads with high power supply priority as the loads of the first bus section Bus1, the power supply priority of part of the loads of the first bus section Bus1 can be the same as the power supply priority of the loads of the second bus section Bus2, or lower than the power supply priority of at least part of the loads of the second bus section Bus2, which is also feasible.

[0051] In some possible implementation manners, when the first bus section is connected with multiple loads, the connection of the load with a supply priority lower than a first preset value is disconnected from the first bus section when the third circuit breaker is closed. For example, if the third power supply has limited energy and cannot drive all the loads connected with the first bus section, in order to preferentially guarantee the power supply of the load with a higher supply priority, the load with a lower supply priority can be disconnected from the first bus section. For example, if the load connected with the circuit breaker CB05 has a higher supply priority than the loads connected with the circuit breakers CB06 and CB07, in some possible implementation manners, when the third power supply is used as the backup power supply, only the load connected with the circuit breaker CB05 can be powered, that is, the circuit breaker CB05 is in the closed state, and the circuit breakers CB06 and CB07 are in the open state, as shown in FIG. 1F.

[0052] In some possible embodiments, the backup power supply method further includes: when the first bus section and the second bus section are in normal operation, if it is detected that the first bus section loses voltage, triggering the first circuit breaker to open and triggering the fourth circuit breaker to close, as shown in FIG. 1G; and when the first bus section and the second bus section are in normal operation, if it is detected that the second bus section loses voltage, triggering the second circuit breaker to open and triggering the fourth circuit breaker to close, as shown in FIG. 1H.

[0053] In some possible embodiments, whether the first bus section Bus1 loses voltage can be determined by using the logic diagram shown in FIG. 2A. It is determined that the first bus section Bus1 loses voltage if the phase-to-phase voltages Uab1, Ubc1 and Uca1 are all less than a preset value U0. Similarly, whether the second bus section Bus2 loses voltage can be determined by using the logic diagram shown in FIG. 2B. It is determined that the second bus section Bus2 loses voltage if the phase-to-phase voltages Uab2, Ubc2 and Uca2 are all less than the preset value U0. It can be understood that the specific value of the preset value U0 is not limited and can be determined according to experience or the like.

[0054] In some possible embodiments, when the first power supply supplies power to the first bus section Bus1 and the second bus section Bus2, when the first bus section Bus1 and the second bus section Bus2 both lose voltage and the second incoming line regains power, the first circuit breaker CB01 is triggered to open and the second circuit breaker CB02 is triggered to close, as shown in FIG. 3A.

[0055] In some possible embodiments, when the second power supply supplies power to the first bus section Bus1 and the second bus section Bus2, when both the first bus section Bus1 and the second bus section Bus2 lose voltage and the first incoming line has power, the second circuit breaker CB02 is triggered to trip and the first circuit breaker CB01 is triggered to close, as shown in FIG. 3B.

[0056] In some possible embodiments, when the fourth circuit breaker CB04 is in a closed state, the first bus section Bus1 and the second bus section Bus2 are supplied with power by the second power supply, if the first incoming line has power, the fourth circuit breaker CB04 is triggered to trip and the first circuit breaker CB01 is triggered to close, as shown in FIG. 4.

[0057] In some possible embodiments, when the fourth circuit breaker CB04 is in a closed state, the first bus section Bus1 and the second bus section Bus2 are supplied with power by the first power supply, if the second incoming line has power, the fourth circuit breaker CB04 is triggered to trip and the second circuit breaker CB02 is triggered to close, as shown in FIG. 4.

[0058] Those skilled in the art can understand that the structure shown in FIG. 1A is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. A specific electronic device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0059] The present application also provides a backup power supply system, comprising: a processor, a first bus section, a second bus section, a first incoming line comprising a first power supply and a first circuit breaker, a second incoming line comprising a second power supply and a second circuit breaker, a third incoming line comprising a third power supply and a third circuit breaker, and a segmented circuit comprising a fourth circuit breaker connected to the first bus section and the second bus section; wherein the first power supply supplies power to the first bus section through the first circuit breaker, the second power supply supplies power to the second bus section through the second circuit breaker, and the third power supply supplies power to the first bus section through the third circuit breaker; in an initial state, the first bus section has power through the first incoming line, and the first circuit breaker is in a closed state; the second bus section has power through the second incoming line, and the second circuit breaker is in a closed state; the third circuit breaker is in a tripped state; and the fourth circuit breaker is in a tripped state; when the third power supply is in a power supply state, the first incoming line has no power and the second incoming line has no power, or the first incoming line has no power, the second incoming line has power, and the fourth circuit breaker is in a state in which it cannot close, the processor triggers the third circuit breaker to close.

[0060] The present application also provides a computer program product, which, when executed by a processor, implements the backup power supply method of any method embodiment of the present application.

[0061] The application further provides a computer readable storage medium, which comprises instructions, when the instructions are executed on an electronic device, causing the electronic device to perform the backup power injection method according to any one of the preceding method embodiments. The backup power injection method is specifically implemented as described in the preceding embodiments, which will not be repeated here.

[0062] The application further provides a chip, which is coupled with a memory, and is used to read and execute a computer program or instructions stored in the memory, so as to execute the method in the embodiments. The chip can be a general processor or a special processor.

[0063] The backup power injection system, the computer readable storage medium, the computer program product and the chip provided in the embodiments of the application are all used to execute the method provided in the embodiments, and thus the beneficial effects that can be achieved by the backup power injection system, the computer readable storage medium, the computer program product and the chip can refer to the beneficial effects of the method provided in the embodiments, which will not be repeated here.

[0064] In several embodiments provided in the application, it should be understood that the disclosed apparatus and method can be implemented in other manners. For example, the apparatus embodiments described above are merely schematic; the division of the modules or units is merely a logical function division; an actual implementation can be another division manner, for example, multiple units or components can be combined or integrated into another apparatus, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, apparatuses or units, and the replaced units can or can not be physically separate, and can or can not be located at one place, or can be distributed to multiple places. In actual implementation, some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments.

[0065] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software function unit. When the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application essentially or say the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product, which is stored in a computer readable storage medium, includes a plurality of instructions to make a device (which can be a single chip microcomputer, a chip, etc.) or a processor (processor) execute all or part of the steps of the method of each embodiment of the present application. The foregoing computer readable storage medium includes: a U disk, a mobile hard disk, a read only memory (read only memory, ROM), a random access memory (random access memory, RAM), a magnetic disk or an optical disk and various program codes that can be stored in the medium. The above content is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A backup power supply automatic throw-in method characterized by comprising: The application is applied to a power system, and the power system comprises a first bus section, a second bus section, a first incoming line comprising a first power supply and a first circuit breaker, a second incoming line comprising a second power supply and a second circuit breaker, a third incoming line comprising a third power supply and a third circuit breaker, and a sectionalizing circuit comprising a fourth circuit breaker connected with the first bus section and the second bus section; wherein the first power supply supplies power to the first bus section through the first circuit breaker, the second power supply supplies power to the second bus section through the second circuit breaker, and the third power supply supplies power to the first bus section through the third circuit breaker; the method comprises the following steps of: In an initial state, the first bus section is powered through the first incoming line, and the first circuit breaker is in a closed state; the second bus section is powered through the second incoming line, and the second circuit breaker is in a closed state; the third circuit breaker is in an open state; and the fourth circuit breaker is in an open state. In a third power supply power supply state, when the first incoming line loses power and the second incoming line loses power at the same time, or when the first incoming line loses power, the second incoming line gains power, and the fourth circuit breaker is in a state of being unable to close, the third circuit breaker is triggered to close.

2. The method of claim 1, wherein, The method further comprises the following steps of: When the first bus section and the second bus section are in a normal operation state, if it is detected that the first bus section loses voltage, the first circuit breaker is triggered to open, and the fourth circuit breaker is triggered to close.

3. The method according to claim 1 or 2, characterized in that, The method further comprises the following steps of: When the first bus section and the second bus section are in a normal operation state, if it is detected that the second bus section loses voltage, the second circuit breaker is triggered to open, and the fourth circuit breaker is triggered to close.

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises the following steps of: When the first bus section and the second bus section are powered by the first power supply, if the first bus section and the second bus section both lose voltage, and the second incoming line gains power, the first circuit breaker is triggered to open, and the second circuit breaker is triggered to close.

5. The method according to any one of claims 1 to 4, characterized in that, The method further comprises the following steps of: When the first bus section and the second bus section are powered by the second power supply, if the first bus section and the second bus section both lose voltage, and the first incoming line gains power, the second circuit breaker is triggered to open, and the first circuit breaker is triggered to close.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises the following steps of: When the fourth circuit breaker is in a closed state, and the first bus section and the second bus section are powered by the second power supply, if the first incoming line gains power, the fourth circuit breaker is triggered to open, and the first circuit breaker is triggered to close.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises the following steps of: when the fourth circuit breaker is in a closed state, and the first bus section and the second bus section are powered by the first power supply, if the second incoming line gains power, the fourth circuit breaker is triggered to open, and the second circuit breaker is triggered to close.

8. The method according to any one of claims 1 to 7, wherein a power supply priority of a load connected with the first bus section is higher than a power supply priority of a load connected with the second bus section. The method further comprises the following steps of:

9. A backup power supply automatic throw-in system characterized by comprising: ​ The processor, the first bus section, the second bus section, the first incoming line comprising the first power supply and the first circuit breaker, the second incoming line comprising the second power supply and the second circuit breaker, the third incoming line comprising the third power supply and the third circuit breaker, and the sectional circuit comprising the fourth circuit breaker connected with the first bus section and the second bus section; wherein the first power supply supplies power to the first bus section through the first circuit breaker, the second power supply supplies power to the second bus section through the second circuit breaker, and the third power supply supplies power to the first bus section through the third circuit breaker; In the initial state, the first bus section is powered through the first incoming line, and the first circuit breaker is in the closed state; the second bus section is powered through the second incoming line, and the second circuit breaker is in the closed state; the third circuit breaker is in the open state; and the fourth circuit breaker is in the open state; When the third power supply is in the power supply state, the first incoming line is not powered, and at the same time, the second incoming line is not powered, or the first incoming line is not powered, the second incoming line is powered, and at the same time, the fourth circuit breaker is in the state that cannot be closed, the processor triggers the third circuit breaker to be closed.

10. A computer-readable storage medium, characterized in that, The computer instructions, when executed on an electronic device, cause the electronic device to perform the method of any one of claims 1 to 8.

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