Combined power supply cabinet and control method thereof

Abstract

The invention provides a combined power supply cabinet and a control method thereof, and belongs to the technical field of power supply equipment, and the combined power supply cabinet comprises a monitor which is used for monitoring the state of a power supply module in real time, controlling program switching and controlling operation; a plurality of power modules connected in parallel, wherein the programs of the power modules adopt a double-program design; wherein the main program is matched with the monitor to realize hierarchical dormancy and multi-power redundant backup functions, the hierarchical dormancy is divided into light-load dormancy and heavy-load awakening, the light-load dormancy only keeps one power module to work, and the heavy-load awakening starts all the power modules; when the main program is abnormal, the monitor automatically triggers switching of the standby program; and when the power supply module working in the light-load dormancy fails, the standby power supply module is started. According to the combined power supply cabinet and the control method thereof provided by the invention, the functions of dual-program redundancy, hierarchical sleep control and multi-power-supply redundancy backup are realized, the power consumption of the combined power supply cabinet can be effectively reduced, the reliability is improved, and the power supply continuity is ensured.

Description

Technical Field

[0001] This invention relates to the field of power supply equipment technology, and in particular to a combined power supply cabinet and its control method. Background Technology

[0002] With the development of technology and the demand for upgrading modern equipment, power supply and distribution systems are evolving towards higher reliability, higher fault tolerance, modularity, intelligence, and standardization. The increasing complexity of equipment functions leads to a greater number of components, which in turn lowers the reliability coefficient. Therefore, there is a strong demand for power distribution equipment to incorporate features such as multi-machine redundancy, high reliability, high fault tolerance, standardization, modularity, and intelligence.

[0003] A combined power supply cabinet is a rack-mounted power device that integrates rectifier modules, power distribution units, and an intelligent management system. Its working principle involves the conversion of alternating current (AC) to direct current (DC). The combined power supply cabinet consists of a monitor and multiple power modules. The monitor manages and controls the power modules, which perform the AC-to-DC conversion.

[0004] Currently, most combined power supply cabinets have dual power supply redundancy backup, resulting in poor efficiency optimization and reliability. Summary of the Invention

[0005] This invention provides a combined power supply cabinet and its control method to overcome at least one deficiency in the prior art.

[0006] In a first aspect, the present invention provides a combined power supply cabinet, comprising: The monitor is used to monitor the power module status, control program switching, and control operations in real time. Multiple power modules are connected in parallel, and the power module program adopts a dual-program design. The main program, together with the monitor, realizes hibernation and multi-power redundancy backup functions. Hibernation is divided into light-load hibernation and heavy-load wake-up. Light-load hibernation keeps only one power module working, while heavy-load wake-up starts all power modules. When the main program malfunctions, the monitor automatically triggers a switchover to the backup program; when the power module operating in a light-load hibernation state fails, the backup power module is activated.

[0007] According to the combined power supply cabinet provided by the present invention, the dual-program design includes program A and program B: program A is configured as a backup program to take over control when program B is abnormal; program B is configured as the main program to perform hierarchical hibernation control and multi-power redundancy backup functions.

[0008] According to the combined power supply cabinet provided by the present invention, program A and program B are stored independently in different Flash partitions, and the storage areas are physically isolated.

[0009] According to the combined power supply cabinet provided by the present invention, when the monitor detects an abnormality in the main program, it controls the power module to switch to the backup program and obtains the program types of all modules to verify the switching result.

[0010] According to the combined power supply cabinet provided by the present invention, the monitor triggers control operations by comparing a set current value with a preset threshold: Compare the set current value with the preset threshold. When the set current value is less than the threshold, execute light-load sleep control, keeping only one power module working and gradually shutting down the other power modules as backup power. When the set current value is not less than the threshold, overload wake-up control is executed, and all backup power modules are started up gradually. In light-load sleep mode, if the working power module fails, the next backup power module will automatically start until all backup power modules fail.

[0011] Secondly, the present invention also provides a control method for a combined power supply cabinet, applied to a combined power supply cabinet containing a monitor and multiple parallel power modules, comprising the following steps: Compare the set current value with the preset threshold. When the set current value is less than the threshold, execute light-load sleep control, keeping only one power module working and gradually shutting down the other power modules as backup power. When the set current value is not less than the threshold, overload wake-up control is executed, and all backup power modules are started up gradually. In light-load sleep mode, if the working power module fails, the next backup power module will automatically start until all backup power modules fail.

[0012] According to the control method of the combined power supply cabinet provided by the present invention, the power supply module adopts an AB dual-program design, including program A and program B, wherein: program A is configured as a backup program to take over control when program B is abnormal; program B is configured as the main program to perform hierarchical hibernation control and multi-power supply redundancy backup functions.

[0013] According to the control method of the combined power supply cabinet provided by the present invention, program A and program B are stored independently in different Flash partitions, and the storage areas are physically isolated.

[0014] The control method for the combined power supply cabinet provided by the present invention further includes: monitoring the working status of all power modules in real time through the monitor; and switching to the standby program when an abnormality is detected in the currently operating main program.

[0015] The control method for the combined power supply cabinet provided by the present invention further includes: the monitor acquiring the program type of all power modules after switching programs to confirm that the switching is complete.

[0016] The combined power supply cabinet and its control method provided by this invention have the following advantages compared with the prior art: (1) The present invention uses a hierarchical hibernation function to achieve energy saving and efficiency optimization by dynamically adjusting the number of working modules; on the basis of the hierarchical hibernation function, a multi-power redundancy backup function is added, and the working status of the power modules is monitored in real time by a monitor. When the main power supply fails, it can automatically switch to the backup power supply to ensure power supply continuity.

[0017] (2) The power module program of the present invention uses AB dual programs. When the main program is malfunctioning, it can switch to the backup program to run, further enhancing the reliability of the combined power cabinet. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the combined power supply cabinet provided by the present invention; Figure 2 This is a flowchart of the dual-program switching implementation provided by the present invention; Figure 3 This is the control flowchart of the combined power supply cabinet under changing operating conditions provided by the present invention; Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0021] It should be noted that, in the description of the embodiments of the present invention, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0022] Most current combined power supply cabinet control solutions are as follows: (1) Patent No. CN118693774A: adopts dual redundancy backup, installs two identical power distribution modules inside the same box. When any one of the power distribution modules fails, it will automatically isolate and go offline without affecting the normal operation of the other module.

[0023] (2) Patent No.: CN119813539A: By integrating an intelligent collaborative control unit in the central processing unit, the intelligent collaboration of the multi-module high-voltage switching power supply can realize redundant design to ensure the continuous and stable operation of the power system. The intelligent collaborative system monitors the working status of each module in real time and dynamically adjusts the load distribution of each module according to actual needs to achieve more efficient energy utilization.

[0024] (3) Patent No. CN120185185A: The two power conversion modules have the function of mutual redundancy. When one power supply fails, the other power supply can continue to supply power to the load.

[0025] (4) Patent No. CN119813501A: The first power supply and the second power supply are connected in series to the normally open and normally closed contacts of the intermediate relay. The automatic switch to the second power supply is completed when the first power supply fails, based on the power supply status of the intermediate relay.

[0026] Currently, most combined power supply cabinets have dual power supply redundancy backup, but lack AB dual program redundancy, hierarchical hibernation, and multi-power supply redundancy backup functions, resulting in a low level of intelligence.

[0027] The purpose of this invention is to design a control method suitable for combined power supply cabinets when outputting low current. It realizes AB dual program redundancy, hierarchical sleep control, and multi-power supply redundancy backup functions, which can effectively reduce the power consumption of combined power supply cabinets, improve the reliability of combined power supply cabinets, and enhance the continuity of power supply.

[0028] The following is combined Figures 1-4 This invention describes the combined power supply cabinet and its control method provided in embodiments of the present invention.

[0029] Figure 1 This is a structural schematic diagram of the combined power supply cabinet provided by the present invention, as shown below. Figure 1 As shown, the combined power supply cabinet includes: Monitor 101 is used to monitor the status of the power module, control program switching, and control operations in real time.

[0030] The monitor manages all power modules and displays their status information.

[0031] Multiple power modules 102 are connected in parallel, and the power module program adopts an AB dual program design.

[0032] All power modules are identical and output in parallel to supply power to the outside. The power module program uses an AB dual-program design. Program A is a mature and stable version that is commonly used and serves as a backup program. Program B, in conjunction with the monitor, can realize hierarchical hibernation control and multi-power redundancy backup functions and serves as the main program. When the main program malfunctions, it can switch to the backup program to run. The AB dual programs are stored independently in different Flash partitions for physical isolation to avoid the spread of single-point failures.

[0033] Optionally, the present invention uses a hierarchical hibernation function, which is divided into light-load hibernation and heavy-load wake-up; when the set current is less than a threshold, light-load hibernation is executed, only one power module is kept working, and other power modules are gradually shut down as backup power; when the set current is greater than a threshold, heavy-load wake-up is executed, the backup power modules are gradually started, and all power modules are turned on.

[0034] Optionally, the present invention uses a multi-power redundancy backup function. When the combined power supply cabinet is in light-load hibernation, only one power module is kept working. When the working power module fails, the combined power supply cabinet automatically detects the abnormality and quickly starts the backup power module until all backup power supplies fail.

[0035] Based on the above embodiments, as an optional embodiment, the control method for the combined power supply cabinet provided by the present invention includes: monitoring the working status of all power modules in real time through the monitor; when an abnormality is detected in the currently working main program, switching to the standby program; and after switching the program, the monitor obtains the program type of all power modules to confirm that the switching is complete.

[0036] Specifically, Figure 2 This is a flowchart of the dual-program switching implementation provided by the present invention, such as... Figure 2 As shown, the process includes the following: 201: Real-time monitoring of power module operating status The monitor tracks the operating status of all power modules to determine if any abnormal conditions exist.

[0037] Optionally, the monitor continuously scans the operating status of all parallel power modules, including voltage output stability, program execution logs, and fault code detection. Monitoring occurs once per second, collecting data via built-in sensors and communication protocols. When an abnormal state is detected (e.g., program crash, output current fluctuation exceeding ±5%), the monitor immediately marks the module as "high-risk" and triggers a subsequent switching mechanism.

[0038] 202: When the main program malfunctions, switch to the backup program. When the main program malfunctions, the monitor controls the power module to switch to the backup program.

[0039] Optionally, if the monitor detects an anomaly in the main program (Program B) in step 201, it immediately sends a switching command to the power module. The switching process is completed within 100 milliseconds: the power module suspends its current task, switches from the main Flash partition (storing Program B) to the backup Flash partition (storing Program A), and reinitializes the control logic. The monitor forcibly takes over control of the module via a hardware interrupt signal to ensure uninterrupted power supply.

[0040] 203: Obtain all power module program types and confirm program switching is complete.

[0041] Optionally, after the switchover is complete, the monitor initiates a full module scan command to obtain the current program type (A or B) running for each power module. By comparing the program type data before and after the switchover, it confirms that the target module has successfully switched to the standby program (program A). If all modules return a verification response, the monitor updates the combined power supply cabinet status display to "standby program activated"; otherwise, it retryes the switchover process or triggers an alarm.

[0042] Based on the above embodiments, as an optional embodiment, the control method for a combined power supply cabinet provided by the present invention is applied to a combined power supply cabinet containing a monitor and multiple parallel power modules, and includes the following steps: comparing a set current value with a preset threshold; when the set current value is less than the threshold, executing light-load sleep control, keeping only one power module working, and gradually shutting down other power modules as backup power; when the set current value is not less than the threshold, executing heavy-load wake-up control, and gradually starting all backup power modules; in the light-load sleep state, when a working power module fails, automatically starting the next backup power module, until all backup power modules fail.

[0043] Specifically, Figure 3 This is a control flowchart of the combined power supply cabinet under changing operating conditions provided by the present invention, such as... Figure 3 As shown, it includes the following steps: 301: Set the current value to be less than the threshold.

[0044] By comparing the set current value with the threshold, if the set current value is less than the threshold, it is considered that the required output current of the combined power supply cabinet is relatively small.

[0045] Alternatively, one implementation method is as follows: The monitor continuously collects the set current value of the combined power supply cabinet (such as the load demand current) and compares it with a preset threshold (such as 10A) in real time. When the set current value is less than the threshold, it is determined that the combined power supply cabinet is in a light load condition, triggering a graded sleep mechanism.

[0046] 302: Light-load hibernation that performs hibernation levels.

[0047] Implement light-load hibernation, keeping only one power module working while gradually shutting down the other power modules as backup power.

[0048] Alternatively, one implementation method is as follows: Keep one power module (e.g., power module 1) continuously operating; gradually shut down the remaining modules in reverse order of their serial numbers (e.g., power module N → power module N-1 → ... → power module 2), with a 5-second interval between shutdowns to avoid current surges.

[0049] 303: Multi-machine redundancy backup function.

[0050] When a light-load hibernation is executed, if the currently operating power module fails, the monitor will automatically start the next power module until all backup power supplies fail.

[0051] Alternatively, one implementation method is as follows: (1) The monitor detects abnormalities in real time (such as the output current returning to zero); (2) Automatically start the next power module (such as power module 2) according to the spare serial number sequence; (3) If module 2 fails, continue to start module 3 until all backup modules are exhausted; (4) Ensure zero power supply interruption by controlling the switching time throughout the process within the preset range.

[0052] 304: Set the current value to be no less than the threshold.

[0053] Exit light-load hibernation.

[0054] 305: Perform a tiered hibernation reload wake-up.

[0055] A reload wake-up is executed, the backup power modules are started up gradually, and all power modules are turned on.

[0056] Alternatively, one implementation method is as follows: (1) Start all power modules sequentially according to the spare serial number (power module 2 → power module 3 → ... → power module N); (2) The start interval is 3 seconds (which can be set according to the actual situation), and the output voltage is calibrated synchronously (error ±0.5V); (3) After all modules are running stably, the combined power supply cabinet is switched to full power output mode.

[0057] In summary, the combined power supply cabinet and its control method provided by this invention have the following advantages compared with the prior art: (1) The present invention uses a hierarchical hibernation function to achieve energy saving and efficiency optimization by dynamically adjusting the number of working modules; on the basis of the hierarchical hibernation function, a multi-power redundancy backup function is added, and the working status of the power modules is monitored in real time by a monitor. When the main power supply fails, it can automatically switch to the backup power supply to ensure power supply continuity.

[0058] (2) The power module program of the present invention uses AB dual programs. When the main program is abnormal, it can switch to the backup program to run, further enhancing the reliability of the combined power cabinet.

[0059] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention, such as... Figure 4 As shown, the electronic device may include a processor 410, a communications interface 420, a memory 430, and a communications bus 440. The processor 410, communications interface 420, and memory 430 communicate with each other via the communications bus 440. The processor 410 can call logic instructions from the memory 430 to execute control methods for the combined power supply cabinet.

[0060] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0061] On the other hand, the present invention also provides a computer program product, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer is able to execute the control method of the combined power supply cabinet provided in the above embodiments, the method including: comparing a set current value with a preset threshold; when the set current value is less than the threshold, performing light-load sleep control, keeping only one power module working, and gradually shutting down other power modules as backup power; when the set current value is not less than the threshold, performing heavy-load wake-up control, and gradually starting all backup power modules; in the light-load sleep state, when a working power module fails, automatically starting the next backup power module, until all backup power modules fail.

[0062] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the control method for the combined power supply cabinet provided in the above embodiments. The method includes: comparing a set current value with a preset threshold; when the set current value is less than the threshold, performing light-load sleep control, keeping only one power module working while gradually shutting down other power modules as backup power; when the set current value is not less than the threshold, performing heavy-load wake-up control, gradually starting all backup power modules; and in the light-load sleep state, when a working power module fails, automatically starting the next backup power module until all backup power modules fail.

[0063] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions 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 invention.

Claims

1. A combined power supply cabinet, characterized in that, include: The monitor is used to monitor the power module status, control program switching, and control operations in real time. Multiple power modules are connected in parallel, and the power module program adopts a dual-program design. The main program, together with the monitor, realizes hibernation and multi-power redundancy backup functions. Hibernation is divided into light-load hibernation and heavy-load wake-up. Light-load hibernation keeps only one power module working, while heavy-load wake-up starts all power modules. When the main program malfunctions, the monitor automatically triggers a switchover to the backup program; when the power module operating in a light-load hibernation state fails, the backup power module is activated.

2. The combined power supply cabinet according to claim 1, characterized in that, Dual-program design includes program A and program B: Program A is configured as a backup program to take over control in the event of an error in Program B. Program B is configured as the main program to perform hierarchical hibernation control and multi-power redundancy backup functions.

3. The combined power supply cabinet according to claim 2, characterized in that, Program A and Program B are stored independently in different Flash partitions, and the storage areas are physically isolated.

4. The combined power supply cabinet according to claim 1, characterized in that, When the monitor detects an anomaly in the main program, it controls the power module to switch to the backup program and obtains the program types of all modules to verify the switching result.

5. The combined power supply cabinet according to claim 1, characterized in that, The monitor triggers control operations by comparing a set current value with a preset threshold. Compare the set current value with the preset threshold. When the set current value is less than the threshold, execute light-load sleep control, keeping only one power module working and gradually shutting down the other power modules as backup power. When the set current value is not less than the threshold, overload wake-up control is executed, and all backup power modules are started up gradually. In light-load sleep mode, if the working power module fails, the next backup power module will automatically start until all backup power modules fail.

6. A control method for a combined power supply cabinet, applied to a combined power supply cabinet comprising a monitor and multiple parallel power modules, characterized in that, Includes the following steps: Compare the set current value with the preset threshold. When the set current value is less than the threshold, execute light-load sleep control, keeping only one power module working and gradually shutting down the other power modules as backup power. When the set current value is not less than the threshold, overload wake-up control is executed, and all backup power modules are started up gradually. In light-load sleep mode, if the working power module fails, the next backup power module will automatically start until all backup power modules fail.

7. The control method for the combined power supply cabinet according to claim 6, characterized in that, The power module adopts an AB dual-program design, including program A and program B, wherein: Program A is configured as a backup program to take over control in the event of an error in Program B. Program B is configured as the main program to perform hierarchical hibernation control and multi-power redundancy backup functions.

8. The control method for the combined power supply cabinet according to claim 6, characterized in that, Program A and Program B are stored independently in different Flash partitions, and the storage areas are physically isolated.

9. The control method for the combined power supply cabinet according to claim 7, characterized in that, Also includes: The monitor can monitor the operating status of all power modules in real time. When an error is detected in the currently running main program, switch to the backup program.

10. The control method for the combined power supply cabinet according to claim 9, characterized in that, Also includes: After switching programs, the monitor obtains the program type of all power modules to confirm that the switching is complete.

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