Spare power automatic switching system, method and device, electronic equipment and medium

Abstract

The invention discloses a plant power backup power automatic switching system, method and device, electronic equipment and a storage medium, the plant power backup power automatic switching system comprises a main power supply, an external incoming line, buses, a first power switch and a second power switch, and the buses comprise a first bus, a second bus and a third bus; two ends of the first bus are respectively connected with the second bus and the third bus through interconnection switches, a first interconnection switch is arranged between the first bus and the second bus, a second interconnection switch is arranged between the first bus and the third bus, the first bus is connected to a main power supply through a first power switch, and the first bus is connected with an external incoming line through a second power switch; the second bus, the third bus and the external incoming line can be used as standby power supplies to supply power to the first bus, a looped network structure model is simplified, a complex structure is converted into a simple structure, the design workload and the tedious degree of subsequent control logic are reduced, and operation and maintenance of operation and maintenance personnel are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of automatic power supply backup, and in particular to a factory power backup automatic power supply system, method, device, electronic equipment and medium. Background Art

[0002] The function of the automatic backup power supply (automatic backup power supply device) is to cut off the working power supply and quickly switch to the backup power supply (automatic backup power supply function) after a section of the busbar loses power, and to cut off the backup power supply and switch to the working power supply after the working power supply is restored (self-recovery function). The ring network type 10kV plant power system has the characteristics of a large number of equipment, complex wiring, and high power supply reliability requirements.

[0003] In the related technology, the traditional automatic switching device logic is generally designed by exhaustive method, that is, by exhaustively enumerating the possible operating modes of the system, different action logics are designed. In the actual application of the automatic switching device of the ring network type 10kV plant power system, the following problems often exist: the plant power system model is not completely simplified or unreasonable, which increases the difficulty and workload of the automatic switching device design, resulting in lengthy and complex automatic switching device logic, and increasing the difficulty of maintenance. Summary of the invention

[0004] In view of the above problems, the present application provides a factory power backup automatic switching system, method, device, electronic equipment and medium to at least solve the problems existing in the related technology.

[0005] In a first aspect, an embodiment of the present application provides a plant power standby automatic switching system, including:

[0006] Main power supply, external incoming line, busbar, first power switch and second power switch, including:

[0007] The busbars include a first busbar, a second busbar and a third busbar;

[0008] The two ends of the first busbar are connected to the second busbar and the third busbar through connecting switches respectively, a first connecting switch is provided between the first busbar and the second busbar, and a second connecting switch is provided between the first busbar and the third busbar;

[0009] The first busbar is connected to the main power supply through the first power switch, and the first busbar is connected to the external incoming line through the second power switch.

[0010] In a second aspect, an embodiment of the present application provides a plant power standby automatic switching method, which is applied to the plant power standby automatic switching system of the first aspect. The plant power standby automatic switching method includes:

[0011] Obtaining voltage information of the main power supply, external incoming lines and busbars, and switch quantity information of the auxiliary power automatic switching system;

[0012] A backup automatic switching control strategy is determined based on the voltage information and the switch quantity information to control the operation of the factory power backup automatic switching system.

[0013] In some embodiments, determining the backup automatic switching control strategy based on the voltage information and the switch quantity information includes:

[0014] When the first bus loses voltage, the status information of the second bus, the third bus and the external incoming line is obtained, wherein the status information includes the condition information of the second bus, the third bus and the external incoming line as backup power supplies and the input status of the backup power supplies;

[0015] The first bus is put into standby operation based on the condition information and the operation status.

[0016] In some embodiments, the step of performing standby operation on the first bus based on the condition information and the operation status includes:

[0017] When the second bus meets the condition information, the second bus is used as the backup power supply and is put into the first bus;

[0018] When the third bus meets the condition information and the second bus does not meet the condition information or the third bus meets the condition information and the second bus fails to be put into operation, the third bus is used as the backup power supply and is put into operation into the second bus;

[0019] When the external incoming line meets the condition information and the second bus and the third bus do not meet the condition information and / or fail to be put into operation, the external incoming line is used as the backup power supply and is put into operation in the third bus.

[0020] In some embodiments, the determining of the backup automatic switching control strategy based on the voltage information and the switch quantity information further includes:

[0021] Based on the switch quantity information, determine the standby status of the first bus, the second bus, the third bus and the external incoming line;

[0022] When the switch quantity information meets the first preset condition, the second bus, the third bus and the external incoming line are allowed to be switched to the first bus;

[0023] When the switch quantity information meets the second preset condition, the first bus is allowed to be switched to the second bus, the third bus and the external incoming line.

[0024] In some embodiments, the allowing the first bus to be switched to the second bus, the third bus and the external incoming line includes:

[0025] When the first busbar is operated in sections, the first busbar is used as a backup power source to be switched to the second busbar, the third busbar and the external incoming line.

[0026] In some embodiments, controlling the operation of the auxiliary power backup automatic switching system includes:

[0027] The control switch handle adjusts the operation mode of the factory power backup automatic switching system, wherein the operation mode includes a full-automatic mode, a semi-automatic mode and an exit mode.

[0028] In a third aspect, an embodiment of the present application provides a plant power standby automatic switching device, including:

[0029] An acquisition module is used to obtain voltage information of the main power supply, external incoming lines and busbars, and switch quantity information of the plant power backup automatic switching system;

[0030] A control module is used to determine a standby automatic switching control strategy based on the voltage information and the switch quantity information to control the operation of the factory power standby automatic switching system.

[0031] In a fourth aspect, an embodiment of the present application provides an electronic device, comprising a memory and a processor, wherein the memory stores a program code that can be executed on the processor, and when the program code is executed by the processor, the factory power backup automatic switching method as described in any implementation method of the second aspect is implemented.

[0032] In a fifth aspect, an embodiment of the present application provides a computer storage medium storing one or more programs, which can be executed by an electronic device as described in the fourth aspect to implement the factory power backup automatic start-up method as described in any implementation method of the second aspect.

[0033] The embodiments of the present application provide a system, method, device, electronic device and storage medium for automatic backup of power supply for a factory. The system for automatic backup of power supply for a factory includes: a main power supply, an external incoming line, a bus, a first power switch and a second power switch, wherein: the bus includes a first bus, a second bus and a third bus, the two ends of the first bus are connected to the second bus and the third bus respectively through a connecting switch, a first connecting switch is arranged between the first bus and the second bus, and a second connecting switch is arranged between the first bus and the third bus, the first bus is connected to the main power supply through the first power switch, and the first bus is connected to the external incoming line through the second power switch, so that the second bus, the third bus and the external incoming line can be used as backup power supplies to power the first bus respectively, and the ring network structure model is simplified, and the complex structure is converted into a simple structure, thereby reducing the design workload and the complexity of the subsequent control logic, and facilitating operation and maintenance by operation and maintenance personnel.

[0034] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Hereinafter, the present application will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0036] Figure 1 A schematic diagram of the structure of a factory power backup automatic switching system proposed in an embodiment of the present application is shown;

[0037] Figure 2 A schematic diagram of a process flow of a factory power standby automatic switching method proposed in an embodiment of the present application is shown;

[0038] Figure 3 A first backup power supply input logic schematic diagram proposed in an embodiment of the present application is shown;

[0039] Figure 4 A second backup power supply input logic schematic diagram proposed in an embodiment of the present application is shown;

[0040] Figure 5 A third backup power supply input logic schematic diagram proposed in an embodiment of the present application is shown;

[0041] Figure 6 A self-recovery logic schematic diagram proposed in an embodiment of the present application is shown;

[0042] Figure 7 A structural block diagram of a factory power standby automatic switching device proposed in an embodiment of the present application is shown;

[0043] Figure 8 A structural block diagram of an electronic device for executing the plant power standby automatic switching method according to an embodiment of the present application is shown;

[0044] Fig. 9 A computer-readable storage medium for storing or carrying a method for implementing a plant power standby automatic switching-in method according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0046] The ring network type 10kV plant power system has the characteristics of a large number of equipment, complex wiring, and high power supply reliability requirements. The logic of the traditional backup automatic switching device is generally designed using the exhaustive method, that is, by exhaustively enumerating the possible operating modes of the system, different action logics are designed.

[0047] In the study of relevant technologies, the applicant found that the problems are: in the actual use of the ring network type 10kV plant power system, the following problems often exist:

[0048] 1. The simplification of the plant power system model is not thorough or reasonable, which increases the difficulty and workload of the backup and automatic start-up design, resulting in lengthy and complex backup and automatic start-up logic, and increases the difficulty of maintenance.

[0049] 2. There are many operating modes for the ring network power supply system, and some of them are incomplete or difficult to list. Under special operating modes, the backup operation may fail, reducing the operating reliability of the power supply system.

[0050] 3. The automatic start-up device designed by exhaustive method needs to write a subroutine for each operation mode, which makes the logic of the automatic start-up device very complicated and increases the difficulty of logic modification and problem analysis. At the same time, during the automatic start-up device operation, process variables may trigger different subroutines, causing the subroutines to run at the same time, resulting in abnormal operation of the automatic start-up device.

[0051] Based on this, the applicant took into account the above-mentioned problems and made comprehensive improvements to the ring network structure, transforming it into a simple structure, and designed backup rules to reduce the design workload, solving the problems of complex backup logic and incompleteness.

[0052] Among them, the factory power backup automatic switching system, method, device, electronic equipment and storage medium are described in detail in subsequent embodiments.

[0053] The following is an introduction to the application scenarios of the factory power backup automatic switching method provided in the embodiment of the present application: Figure 2 , Figure 2 FIG. 1 is a flow chart of a method for automatically switching on a power plant backup power plant provided in an embodiment of the present application. In this embodiment, the method for automatically switching on a power plant backup power plant can be applied to the following situations: Figure 7 The factory power standby automatic switching device 300 shown in FIG. Figure 8 In the electronic device 200 shown, the electronic device may include one or more electronic devices, and information may be transmitted between the multiple electronic devices in a wireless and / or wired manner, and the multiple electronic devices may cooperate to complete the factory power backup self-transfer method. Figure 2 The process shown in the figure is described in detail. The power reserve automatic switching method of the plant is applied as follows Figure 1 A plant power backup automatic switching system is shown, the plant power backup automatic switching system comprises: a main power supply, an external incoming line, a busbar, a first power switch and a second power switch, wherein:

[0054] See also Figure 1 In the figure, the busbars include a first busbar, a second busbar and a third busbar. The two ends of the first busbar are connected to the second busbar and the third busbar through connecting switches respectively. A first connecting switch is provided between the first busbar and the second busbar, and a second connecting switch is provided between the first busbar and the third busbar. The first busbar is connected to the main power supply through the first power switch, and the first busbar is connected to the external incoming line through the second power switch.

[0055] Exemplarily, the first bus, the second bus and the third bus are bus A, bus B and bus C in the figure respectively, the first power switch is 1DL, the first connecting switch is 2DL, the second connecting switch is 3DL, the second power switch is 4DL, the factory high-voltage transformer serves as the main power supply of mother A, mother B is the first backup power supply of mother A, mother C is the second backup power supply of mother A, the external incoming line is the third backup power supply of mother A, 1DL is the main incoming line power switch of mother A, 2DL is the connecting switch between mother A and mother B, 3DL is the connecting switch between mother B and mother C, and 4DL is the external incoming line power switch.

[0056] In this embodiment, the conventional ring network structure model is simplified, and the complex structure is transformed into a simple structure, thereby reducing the design workload.

[0057] In some embodiments, see Figure 2 , Figure 2 The method for automatic switching on of power backup for a middle-sized factory may include S110 to S120.

[0058] S110: Obtain voltage information of the main power supply, external incoming lines and busbars, and switch quantity information of the plant power backup automatic switching system.

[0059] In the embodiment of the present application, the analog quantity and switch quantity in the factory power backup automatic switching system can be collected separately. In some aspects, the main power supply voltage, that is, the factory high-voltage, the external incoming line voltage and the voltage of the first bus can be obtained. In other aspects, the switch quantity 1DL position, 1DL position, 1DL working position, 2DL position, 2DL position, 2DL position, 2DL working position, 3DL position, 3DL position, 3DL working position, 4DL position, 4DL position, 4DL working position, the first backup is valid (B mother allows backup to A mother), the second backup is valid (C mother allows backup to A mother), full-automatic mode, semi-automatic mode, exit mode, arc protection action, factory transformer backup protection action, busbar PT circuit breaker tripping can be obtained.

[0060] S120: Determine the backup automatic start-up control strategy based on the voltage information and the switch quantity information to control the operation of the factory power backup automatic start-up system.

[0061] In an embodiment of the present application, the standby automatic start-up control strategy may include: standby start-up principle conditions, automatic start-up preparation conditions, automatic start-up charging conditions, automatic start-up power supply conditions, self-recovery preparation conditions, self-recovery charging conditions, self-recovery discharge conditions, standby start-up permission conditions and action logic conditions.

[0062] Taking into account that the existing ring network type plant power system may cause standby failure under special operating modes, reducing the operating reliability of the plant power system, in order to overcome this problem.

[0063] In some embodiments, determining the backup automatic switching control strategy based on the voltage information and the switch quantity information in step S120 may include S121 to S122.

[0064] S121: When the first bus loses voltage, status information of the second bus, the third bus and the external incoming line is obtained, wherein the status information includes condition information of the second bus, the third bus and the external incoming line as backup power supplies and the input status of the backup power supplies.

[0065] S122: The first bus is put into standby operation based on the condition information and the operation status.

[0066] In the embodiment of the present application, the principle condition for standby power supply is whether the second bus, the third bus and the external incoming line meet their input conditions as backup power supplies, wherein the first backup condition is that the second bus allows standby power supply to the first bus (B bus to A bus), the second backup condition is that the third bus allows standby power supply to the first bus (C bus to A bus), and the third backup condition is that the external incoming line allows standby power supply to the first bus, wherein the input status of the backup power supply includes the success or failure of the second bus, the third bus and the external incoming line to be respectively put into the first bus.

[0067] In this embodiment, the backup principle is set by setting conditional information and input conditions in a simplified plant power backup automatic input system, so that precise control is achieved without the need for more complex control logic, thereby improving operational reliability.

[0068] In order to further optimize the busbar backup strategy and improve reliability.

[0069] In some embodiments, step S122 may include S1221 to S1223.

[0070] S1221: When the second bus meets the condition information, the second bus is put into the first bus as a backup power source.

[0071] S1222: When the third bus meets the condition information and the second bus does not meet the condition information or the third bus meets the condition information and the second bus fails to be put into operation, the third bus is used as a backup power source and is put into operation into the second bus.

[0072] S1223: When the external incoming line meets the condition information and the second bus and the third bus do not meet the condition information and / or fail to be put into operation, the external incoming line is used as a backup power source and is put into the third bus.

[0073] In the embodiment of the present application, the principle condition of standby input is: when bus A loses pressure, if the condition of one standby is met, the first standby is automatically put into operation. When bus A loses pressure, if the condition of two standbys is met and the condition of one standby is not met, the second standby is automatically put into operation; if the condition of two standbys is met and the input of one standby fails, the second standby is automatically put into operation. When bus A loses pressure, if the condition of three standbys is met and the conditions of one standby and two standbys are not met, the third standby is automatically put into operation; if the condition of three standbys is met and the input of one standby fails and the condition of two standbys is not met, the third standby is automatically put into operation; if the condition of three standbys is met and the input of two standbys fails and the condition of one standby is not met, the third standby is automatically put into operation; if the condition of three standbys is met and the input of two standbys fails and the condition of one standby is not met, the third standby is automatically put into operation; if the condition of three standbys is met and the input of one standby and two standbys fails ....

[0074] In some embodiments, determining the backup automatic switching control strategy based on the voltage information and the switch quantity information in step S120 may also include S123 to S125.

[0075] S123: Determine the backup status of the first bus, the second bus, the third bus and the external incoming line based on the switch quantity information.

[0076] In the embodiment of the present application, the switch quantity information may also include an output quantity, and the mutual backup status of the first bus and the second bus, the third bus and the external incoming line can be obtained according to the output quantity.

[0077] S124: When the switch quantity information meets the first preset condition, the second bus, the third bus and the external incoming line are allowed to be switched to the first bus.

[0078] S125: When the switch quantity information meets the second preset condition, the first bus is allowed to be switched to the second bus, the third bus and the external incoming line.

[0079] In this embodiment, when the switching quantity meets the first preset condition, the second bus, the third bus and the external incoming line can supply power to the first bus when the first bus loses voltage. When the second preset condition is met, the first bus can supply power to the second bus, the third bus and the external incoming line.

[0080] Exemplarily, the output quantity is: jump 1DL, jump 2DL, jump 3DL, jump 4DL, close 1DL, close 2DL, close 3DL, close 4DL, 2DL allows standby outlet (A mother allows standby outlet to B mother), 3DL allows standby outlet (A mother allows standby outlet to C mother), self-charging is completed, and self-recovery charging is completed.

[0081] 2DL allows the standby exit to be opened only if four conditions are met simultaneously: ① 1DL is in the closed position and in the working position, ② A mother has pressure, ③ 2DL is in the open position and in the working position, ④ 3DL is in the open position or in the non-working position.

[0082] 3DL allows the standby exit to be opened only if four conditions are met simultaneously: ① 1DL is in closed position and in working position, ② A mother has pressure, ③ 3DL is open and in working position, ④ 2DL is open or in non-working position.

[0083] Considering the actual usage.

[0084] In some embodiments, in step S125, allowing the first busbar to be switched to the second busbar, the third busbar, and the external incoming line includes:

[0085] When the first busbar is operated in sections, the first busbar is used as a backup power source to be switched to the second busbar, the third busbar and the external incoming line.

[0086] In this embodiment, since the main power supply is relatively stable, it can only be used as a backup power supply for other busbars when the main incoming line is operating with busbar sections. It cannot be used as a backup power supply for other busbars when the busbars are in interconnection operation or when the external incoming power supply is operating with busbar sections.

[0087] In some embodiments, controlling the operation of the plant power backup automatic switching system in step S120 includes:

[0088] The control switch handle adjusts the operating mode of the factory power backup automatic switching system, where the operating modes include full-automatic mode, semi-automatic mode and exit mode.

[0089] In the embodiment of the present application, the automatic start-up device is designed with three operating modes: full-automatic mode, semi-automatic mode, and exit mode. The mode is switched by the automatic start-up switch handle. In the full-automatic mode, both the automatic start-up function and the self-recovery function are put into operation; in the semi-automatic mode, the automatic start-up function is put into operation and the self-recovery function is exited; in the exit mode, both the automatic start-up function and the self-recovery function are exited.

[0090] In some embodiments, three functional soft pressure plates are designed in the standby automatic throwing device, namely, a standby automatic throwing function soft pressure plate, a self-throwing mode soft pressure plate, and a self-recovering mode soft pressure plate, which are thrown and withdrawn on the standby automatic throwing device. When the standby automatic throwing function soft pressure plate is thrown, both the self-throwing function and the self-recovering function are thrown; when the self-throwing mode soft pressure plate is thrown, the self-throwing function is thrown; when the self-recovering mode soft pressure plate is thrown, the self-recovering function is thrown.

[0091] In some embodiments, two control words, automatic mode control word and self-recovery mode control word, are designed in the standby automatic switching device to perform switching on and off on the standby automatic switching device. When the automatic mode control word is switched on, the automatic switching function is switched on; when the self-recovery mode control word is switched on, the self-recovery function is switched on.

[0092] In some embodiments, the self-administration preparation conditions include:

[0093] After the conditions for automatic charging are met but the conditions for automatic charging are not met, charging is completed after the "standby automatic charging time".

[0094] In some embodiments, the self-charging conditions include:

[0095] Mother A is under pressure, and the first backup is valid, the second backup is valid, and the third backup is valid.

[0096] In some embodiments, the self-delivery conditions include:

[0097] ① The first and second backup switches are both invalid and are discharged after a 15s delay; ② The backup automatic switch handle is set to "exit"; ③ The backup automatic switch handle is set to "full automatic" or "semi-automatic"; ④ Any switch of 1DL, 2DL, and 3DL refuses to trip; ⑤ Arc protection, plant transformer backup protection, and busbar protection, any of which blocks the backup automatic switch; ⑥ The busbar PT circuit breaker trips and blocks the backup automatic switch; ⑦ The automatic switch mode control word exits; ⑧ The backup automatic switch function soft pressure plate exits; ⑨ The automatic switch mode soft pressure plate exits; ⑩ The self-recovery mode operates; The first backup investment is successful or the second backup investment is successful; The busbar is without voltage through “busbar without voltage discharge delay”.

[0098] In some embodiments, the self-recovery preparation conditions include:

[0099] After the self-recovery charging conditions are met but the self-recovery discharging conditions are not met, the charging is completed after the "standby self-charging time".

[0100] In some embodiments, the self-recovery charging conditions include:

[0101] Mother A is under pressure, 1DL is in position and in working position.

[0102] In some embodiments, the self-recovery discharge conditions include:

[0103] ① The main incoming line switch is in the closed position or in the non-working position; ② The standby automatic switching handle is not in "semi-automatic" or "exit"; ③ The standby automatic switching handle is not in "full automatic mode"; ④ Any switch of 2DL, 3DL, and 4DL refuses to trip; ⑤ The self-recovery mode control word exits; ⑥ The standby automatic switching function soft pressure plate exits; ⑦ The self-recovery mode soft pressure plate exits; ⑧ Any of the arc protection, plant transformer backup protection, and busbar protection is in action.

[0104] It should be noted that the above-mentioned handle control operation mode in the present application is not limited to manual control, but can also include controlling the handle through program operation to adjust the operation mode.

[0105] In some implementations, the conditions for allowing standby investment include:

[0106] ① The conditions for A mother to be switched to B mother are: A mother has pressure, 1DL switch is in the working position, 2DL switch is in the working position, 3DL switch is in the open position or non-working position.

[0107] ②The conditions under which mother A is allowed to be put into standby mode to mother C are: mother A has pressure, 1DL switch is in the working position, closed position, 3DL switch is in the working position, open position, 2DL switch is in the open position or non-working position.

[0108] Please refer to the attached Figure 3 , attached Figure 3 This is a logical diagram of the first backup power supply input proposed in an embodiment of the present application.

[0109] Figure 3 Middle: After the A mother completes the automatic charging, the first standby 2DL is valid (i.e., the B mother allows the standby transfer to the A mother). When the A mother loses pressure, the automatic transfer starts, and the 1DL and 3DL switches in the working position are tripped after the "automatic transfer mode tripping time". After confirming the tripping, the first standby 2DL switch is closed after the "automatic transfer mode closing time". After closing, after the "switch closing busbar pressure recovery time", if the A mother recovers the pressure, the first standby transfer is successful. If the A mother does not recover the pressure, the first standby transfer fails. If the first standby transfer fails and the second standby is valid or the third standby is valid, the first standby 2DL switch is tripped.

[0110] Please refer to the attached Figure 4 , attached Figure 4 This is a logic diagram of a second backup power supply being put into use proposed in an embodiment of the present application.

[0111] Figure 4 Middle: After the A mother self-throwing charging is completed and any of the following conditions are met, when the A mother loses pressure, the self-throwing starts, and the 1DL and 2DL switches in the working position are tripped after the "self-throwing mode tripping time". After confirming the tripping, the second standby 3DL switch is closed after the "self-throwing mode closing time". After closing, after the "switch closing busbar pressure recovery time", if the A mother recovers the pressure, the second standby throw is successful. If the A mother does not recover the pressure, the second standby throw fails. ① The first standby throw fails and the second standby 2DL of the A mother is valid (that is, the C mother allows the standby throw to the B mother), ② The first standby 2DL is invalid and the second standby 3DL is valid, and the standby self-throwing does not issue a command to close the first standby 2DL.

[0112] Please refer to the attached Figure 5 , attached Figure 5 This is a third backup power supply input logic diagram proposed in an embodiment of the present application.

[0113] Figure 5Middle: After the A mother automatic charging is completed and any of the following conditions are met, when the A mother loses pressure, the automatic start-up will be activated, and the 1DL, 2DL and 3DL switches in the working position will be tripped after the "automatic tripping time". After confirming the tripping, the third standby 4DL switch will be closed after the "automatic closing time". After closing, if the A mother recovers pressure after the "switch closing busbar pressure recovery time", the third standby will be successfully thrown. If the A mother does not recover pressure, the third standby will fail. ① The first backup throw fails and the second backup throw fails and the third backup throw 4DL is valid; ② The first backup throw 2DL is invalid and the second backup throw fails and the third backup throw 4DL is valid and the automatic backup throw does not issue a command to close the first backup throw 2DL; ③ The first backup throw fails and the second backup throw 3DL is invalid and the third backup throw 4DL is valid and the automatic backup throw does not issue a command to close the second backup throw 3DL; ④ The automatic backup throw does not issue a command to close the first backup throw 2DL and the automatic backup throw does not issue a command to close the second backup throw 3DL and the first backup throw 2DL is invalid and the second backup throw 3DL is invalid and the third backup throw 4DL is valid, and the "automatic throw mode tripping time" expires.

[0114] Please refer to the attached Figure 6 , attached Figure 6 A schematic diagram of a self-recovery logic proposed in an embodiment of the present application.

[0115] Figure 6 Middle: After the self-recovery mode charging is completed, when the incoming line of mother A 1DL has pressure, the self-recovery starts, and the 2DL, 3DL and 4DL switches in the working position are tripped after the "self-recovery mode tripping time". After confirming that they are tripped and mother A has no pressure, the 1DL switch is closed after the "self-recovery mode closing time". After closing, the busbar restores pressure time after the "switch closing busbar restores pressure time". If mother A restores pressure, the self-recovery is successful. If mother A does not restore pressure, the self-recovery fails.

[0116] In the embodiment of the present application, the number and level of backup power supplies for each bus are determined, the ring network structure model is simplified, the complex structure is converted into a simple structure, the design workload is reduced, and the backup automatic switching program of each bus is consistent, which reduces the difficulty of program management. After determining the backup automatic switching principle, the analog quantity and switch quantity collected by the backup automatic switching, and the backup automatic switching output, the backup automatic switching logic is designed, and the design idea of ​​the exhaustive method in the prior art is abandoned. The backup automatic switching action process does not judge the bus operation mode. Instead, after the backup automatic switching is started, all the main incoming power switches and backup power switches of the bus in the working position can be tripped (except the backup power switch to be closed) to make the bus in an "empty bus" state. After confirming that all switches are tripped, the backup power switch is closed, which solves the problems of complex backup automatic switching logic and incomplete exhaustiveness. The backup automatic switching logic is more concise and clear, with high reliability, which is beneficial to the operation and maintenance of operation and maintenance personnel, and improves the operation reliability of the factory power system.

[0117] See also Figure 7 , Figure 7This is a structural block diagram of a power reserve automatic switching device for a factory provided in the present application. The power reserve automatic switching device for a factory 300 includes: an acquisition module 310 and a control module 320, wherein:

[0118] The acquisition module 310 is used to obtain the voltage information of the main power supply, external incoming lines and busbars, and the switch quantity information of the auxiliary power automatic switching system.

[0119] The control module 320 is used to determine the backup automatic switching control strategy based on the voltage information and the switch quantity information to control the operation of the factory power backup automatic switching system.

[0120] The device embodiment in the present application may also include other modules, which specifically correspond to part of the content of the above method.

[0121] It should be noted that the device embodiments in the present application correspond to each other with the aforementioned method embodiments. The specific principles in the device embodiments can be found in the contents of the aforementioned method embodiments and will not be repeated here.

[0122] In several embodiments provided in this embodiment, the coupling between modules may be electrical, mechanical or other forms of coupling.

[0123] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0124] See also Figure 8 , Figure 8 The present application provides a structural block diagram of an electronic device 200 that can execute the above-mentioned factory power backup automatic switching method. The electronic device 200 can be a smart phone, tablet computer, computer or portable computer and other devices.

[0125] The electronic device 200 further includes a processor 202 and a memory 204. The memory 204 stores a program that can execute the contents of the aforementioned embodiments, and the processor 202 can execute the program stored in the memory 204.

[0126] Among them, the processor 202 may include one or more cores and message matrix units for processing data. The processor 202 uses various interfaces and lines to connect various parts of the entire electronic device 200, and executes various functions and processes data of the electronic device 200 by running or executing instructions, programs, code sets or instruction sets stored in the memory 204, and calling data stored in the memory 204. Optionally, the processor 202 can be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). The processor 202 can integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU) and a modulation decoder. Among them, the CPU mainly processes the operating system, user interface and application programs; the GPU is responsible for rendering and drawing display content; and the modem is used to process wireless communications. It can be understood that the above-mentioned modulation decoder may not be integrated into the processor, but may be implemented separately through a communication chip.

[0127] The memory 204 may include a random access memory (RAM) or a read-only memory (ROM). The memory 204 may be used to store instructions, programs, codes, code sets or instruction sets. The memory 204 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (e.g., instructions for a user to obtain a random number), instructions for implementing the following various method embodiments, etc. The data storage area may also store data (e.g., random numbers) created by the terminal during use, etc.

[0128] The electronic device 200 may also include a network module and a screen. The network module is used to receive and send electromagnetic waves, realize the mutual conversion between electromagnetic waves and electrical signals, and thus communicate with a communication network or other devices, such as communicating with an audio playback device. The network module may include various existing circuit components for performing these functions, such as antennas, radio frequency transceivers, digital signal processors, encryption / decryption chips, user identity modules (SIM) cards, memories, etc. The network module may communicate with various networks such as the Internet, corporate intranets, wireless networks, or communicate with other devices via wireless networks. The above-mentioned wireless networks may include cellular telephone networks, wireless local area networks, or metropolitan area networks. The screen may display interface content and perform data interaction.

[0129] Please refer to Fig. 9 , Fig. 9 The computer-readable storage medium 400 stores program code 410, which can be called by a processor to execute the method described in the above method embodiment.

[0130] The computer-readable storage medium 400 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk, or a ROM. Optionally, the computer-readable storage medium includes a non-transitory computer-readable storage medium. The computer-readable storage medium 400 has storage space for program codes 410 that perform any method steps in the above method. These program codes 410 can be read from or written to one or more computer program products. The program codes 410 can be compressed, for example, in an appropriate form.

[0131] The embodiment of the present application also provides a computer program product or a computer program, which includes a computer instruction stored in a computer-readable storage medium. The processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the plant power backup automatic switching method described in the above various optional implementations.

[0132] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A factory power backup automatic switching system, characterized in that: The plant power backup automatic switching system includes: a main power supply, an external incoming line, a busbar, a first power switch and a second power switch, wherein: The busbars include a first busbar, a second busbar and a third busbar; The two ends of the first busbar are connected to the second busbar and the third busbar through connecting switches respectively, a first connecting switch is provided between the first busbar and the second busbar, and a second connecting switch is provided between the first busbar and the third busbar; The first busbar is connected to the main power supply through the first power switch, and the first busbar is connected to the external incoming line through the second power switch.

2. A method for automatic switching on of power supply for factory use, characterized in that: Applied to the automatic power supply system for power supply used in the plant as claimed in claim 1, the automatic power supply method for power supply used in the plant comprises: Obtaining voltage information of the main power supply, external incoming lines and busbars, and switch quantity information of the auxiliary power automatic switching system; A backup automatic switching control strategy is determined based on the voltage information and the switch quantity information to control the operation of the factory power backup automatic switching system.

3. The method for automatic switching of power supply for factory use according to claim 2, characterized in that: The step of determining the standby automatic switching control strategy based on the voltage information and the switch quantity information includes: When the first bus loses voltage, the status information of the second bus, the third bus and the external incoming line is obtained, wherein the status information includes the condition information of the second bus, the third bus and the external incoming line as backup power supplies and the input status of the backup power supplies; The first bus is put into standby operation based on the condition information and the operation status.

4. The method for automatic switching of power supply for factory use according to claim 3 is characterized in that: The performing standby operation on the first bus based on the condition information and the operation status includes: When the second bus meets the condition information, the second bus is used as the backup power supply and is put into the first bus; When the third bus meets the condition information and the second bus does not meet the condition information or the third bus meets the condition information and the second bus fails to be put into operation, the third bus is used as the backup power supply and is put into operation into the second bus; When the external incoming line meets the condition information and the second bus and the third bus do not meet the condition information and / or fail to be put into operation, the external incoming line is used as the backup power supply and is put into operation in the third bus.

5. The method for automatic switching of power supply for factory use according to claim 2, characterized in that: The step of determining the standby automatic switching control strategy based on the voltage information and the switch quantity information further includes: Based on the switch quantity information, determine the standby status of the first bus, the second bus, the third bus and the external incoming line; When the switch quantity information meets the first preset condition, the second bus, the third bus and the external incoming line are allowed to be switched to the first bus; When the switch quantity information meets the second preset condition, the first bus is allowed to be switched to the second bus, the third bus and the external incoming line.

6. The method for automatic switching on of power backup for factory use according to claim 5, characterized in that: The permission for the first busbar to be switched to the second busbar, the third busbar and the external incoming line includes: When the first busbar is operated in sections, the first busbar is used as a backup power source to be switched to the second busbar, the third busbar and the external incoming line.

7. The method for automatic switching of power supply for factory use according to claim 2, characterized in that: The controlling the operation of the plant power standby automatic switching system includes: The control switch handle adjusts the operation mode of the factory power backup automatic switching system, wherein the operation mode includes a full-automatic mode, a semi-automatic mode and an exit mode.

8. A factory power backup automatic switching device, characterized in that: The device comprises: An acquisition module is used to obtain voltage information of the main power supply, external incoming lines and busbars, and switch quantity information of the plant power backup automatic switching system; A control module is used to determine a standby automatic switching control strategy based on the voltage information and the switch quantity information to control the operation of the factory power standby automatic switching system.

9. An electronic device, characterized in that: The electronic device includes a memory and a processor, wherein the memory stores program codes that can be run on the processor, and when the program codes are executed by the processor, the plant power backup automatic switching method as described in any one of claims 2-7 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores program codes, and the program codes can be called by one or more processors to execute the plant power backup automatic switching method as described in any one of claims 2-7.

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