CN112731194B - A method, system, device and medium for testing power supply current sharing adjustment capability - Google Patents

Abstract

The invention discloses a method, a system, equipment and a storage medium for testing the current-sharing and energy-adjusting capacity of a power supply, wherein the method comprises the following steps: defining current-sharing regulation capacity, reference current-sharing unbalance and reference output voltage corresponding to each power supply according to the specification of the power supplies, and determining upper limit voltage and lower limit voltage of the power supplies based on the current-sharing regulation capacity and the reference output voltage; respectively adjusting the output voltage of one power supply of the equipment to be tested into a lower limit voltage and an upper limit voltage, acquiring the current of each power supply, calculating a first current-sharing unbalance degree corresponding to the lower limit voltage and a second current-sharing unbalance degree corresponding to the upper limit voltage according to the currents, and judging whether the first current-sharing unbalance degree and/or the second current-sharing unbalance degree are/is greater than a reference current-sharing unbalance degree or not; and responding to the first current-sharing unbalance degree and the second current-sharing unbalance degree which are less than or equal to the reference current-sharing unbalance degree, confirming that the current-sharing adjusting capability of the power supply is normal, and repeating the steps to test the next power supply of the equipment to be tested.

Description

A method, system, device and medium for testing power supply current sharing adjustment capability

technical field

The present invention relates to the field of servers, and more particularly, to a method, a system, a computer device and a readable medium for testing the current sharing adjustment capability of a power supply.

Background technique

In a server using two or more power supplies, usually in order to consider the life of the power supplies, the redundant load is used for power supply; in order to consider the difference in the output voltage of the power supply or the difference in the contact impedance of the system, the power supply usually has a certain current sharing. Adjustment ability, so as to better achieve the status of redundant load sharing, thus creating a test requirement for the current sharing adjustment ability.

The existing current sharing regulation capability test scheme usually verifies the regulation capability of the power supply by stringing power supplies on the main circuit of a single power supply to form a voltage difference and confirming that the output voltage is maintained within a normal range. The prior art can only simply judge by the voltage, cannot test the actual current sharing unbalance, cannot accurately test whether the adjustment capability meets the specification requirements, and cannot automatically test in mass production.

SUMMARY OF THE INVENTION

In view of this, the purpose of the embodiments of the present invention is to propose a method, system, computer equipment and computer-readable storage medium for testing the current sharing adjustment capability of a power supply, and the upper limit voltage and the lower limit voltage are used to obtain the current sharing unbalance respectively, so as to measure the current sharing unbalance. Power supplies are accurately measured and can be tested automatically in high volume production.

Based on the above purpose, one aspect of the embodiments of the present invention provides a method for testing the current sharing adjustment capability of a power supply, including the following steps: defining the current sharing adjustment capability, the reference current sharing unbalance degree, and the reference output voltage, and determine the upper limit voltage and lower limit voltage of the power supply based on the current sharing adjustment capability and the reference output voltage; adjust the output voltage of one of the power supplies of the device under test to the lower limit voltage, and obtain each the current of the power supply, calculate the first current current sharing imbalance degree corresponding to the lower limit voltage according to the current, and determine whether the first current current sharing imbalance degree is less than or equal to the reference current sharing imbalance degree; in response to The first current current sharing unbalance degree is less than or equal to the reference current sharing unbalance degree, the output voltage is adjusted to the upper limit voltage, the current of each power supply is obtained, and the upper limit voltage is calculated according to the current corresponding to the second current current sharing unbalance degree and judging whether the second current current sharing imbalance degree is less than or equal to the reference current sharing imbalance degree; and in response to the second current current sharing imbalance degree being less than or equal to the unbalance degree of the reference current sharing, confirm that the current sharing adjustment capability of the power supply is normal, and repeat the above steps to test the next power supply of the device under test.

In some embodiments, the method further includes: in response to the first current current sharing unbalance degree being greater than the reference current sharing unbalance degree, confirming that the current sharing adjustment capability of the power supply is abnormal and restoring the output voltage to the reference output voltage.

In some embodiments, the calculating the first current current sharing imbalance degree corresponding to the lower limit voltage according to the current includes: calculating an average current of all currents, and calculating a difference between the current of the power supply and the average current and obtaining a first current current sharing imbalance degree based on the ratio of the difference value to the average current.

In some embodiments, the obtaining the first current current sharing imbalance degree based on the ratio of the difference to the average current includes: calculating a variance of the acquired current, and judging whether the variance is greater than a threshold; and responding to The variance is not greater than the threshold, and the first current current sharing imbalance degree is calculated.

Another aspect of the embodiments of the present invention further provides a system for testing the current sharing adjustment capability of a power supply, including: a preset module configured to define the current sharing adjustment capability corresponding to each power supply and the reference current sharing adjustment capability according to the specifications of the power supply. balance and reference output voltage, and determine the upper limit voltage and lower limit voltage of the power supply based on the current sharing adjustment capability and the reference output voltage; the first test module is configured to measure the output of one of the power supplies of the device under test The voltage is adjusted to the lower limit voltage, the current of each power supply is obtained, the first current current sharing unbalance corresponding to the lower limit voltage is calculated according to the current, and whether the first current current sharing unbalance is less than or equal to the reference current sharing unbalance degree; a second test module configured to adjust the output voltage to the upper limit voltage, obtain the current of each power supply, calculate the second current current sharing unbalance corresponding to the upper limit voltage according to the current, and determine whether the second current current sharing unbalance is less than or equal to the reference current sharing an unbalance degree; and an execution module configured to confirm that the current sharing adjustment capability of the power supply is normal and repeat the above steps in response to the second current current sharing unbalance degree being less than or equal to the reference current sharing unbalance degree Carry out the test of the next power supply of the device under test.

In some embodiments, the system further includes: a second execution module configured to confirm that the current sharing adjustment capability of the power supply is abnormal in response to the first current current sharing imbalance degree being greater than the reference current sharing imbalance degree and restore the output voltage to the reference output voltage.

In some embodiments, the first test module is configured to: calculate an average current of all currents, and calculate a difference between the current of the power supply and the average current; and based on the difference and the average current The ratio of , obtains the first current current sharing unbalance degree.

In some embodiments, the first test module is configured to: calculate the variance of the acquired current, and determine whether the variance is greater than a threshold; and in response to the variance not greater than the threshold, calculate the first current Current unbalance.

In yet another aspect of the embodiments of the present invention, there is also provided a computer device, comprising: at least one processor; and a memory, where the memory stores computer instructions that can be executed on the processor, and the instructions are executed by the processor. The processor implements the steps of the above method when executed.

In yet another aspect of the embodiments of the present invention, a computer-readable storage medium is also provided, where the computer-readable storage medium stores a computer program that implements the above method steps when executed by a processor.

The invention has the following beneficial technical effects: the upper limit voltage and the lower limit voltage are used to obtain the current sharing unbalance respectively, so that the power supply can be accurately measured and can be automatically tested in mass production.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other embodiments can also be obtained according to these drawings without creative efforts.

1 is a schematic diagram of an embodiment of a method for testing the current sharing adjustment capability of a power supply provided by the present invention;

FIG. 2 is a schematic diagram of a hardware structure of an embodiment of a computer device for testing the current sharing adjustment capability of a power supply provided by the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be further described in detail below with reference to the specific embodiments and the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two entities with the same name but not the same or non-identical parameters. It can be seen that "first" and "second" It is only for the convenience of expression and should not be construed as a limitation on the embodiments of the present invention, and subsequent embodiments will not describe them one by one.

Based on the above purpose, in a first aspect of the embodiments of the present invention, an embodiment of a method for testing the current sharing adjustment capability of a power supply is provided. FIG. 1 shows a schematic diagram of an embodiment of a method for testing the current sharing regulation capability of a power supply provided by the present invention. As shown in Figure 1, the embodiment of the present invention includes the following steps:

S1. Define the current sharing regulation capability, the reference current sharing unbalance and the reference output voltage corresponding to each power supply according to the specifications of the power supply, and determine the upper and lower voltage limits of the power supply based on the current sharing regulation capability and the reference output voltage;

S2. Adjust the output voltage of one of the power supplies of the device to be tested to the lower limit voltage, obtain the current of each power supply, calculate the first current current sharing unbalance corresponding to the lower limit voltage according to the current, and determine the first current current sharing imbalance Whether it is less than or equal to the reference current sharing imbalance;

S3. In response to the first current current sharing unbalance degree being less than or equal to the reference current sharing unbalance degree, adjust the output voltage to the upper limit voltage, obtain the current of each power supply, and calculate the second current current sharing imbalance corresponding to the upper limit voltage according to the current. balance degree and determine whether the second current current sharing imbalance degree is less than or equal to the reference current sharing imbalance degree; and

S4. In response to the second current current sharing unbalance degree being less than or equal to the reference current sharing unbalance degree, confirm that the current sharing adjustment capability of the power supply is normal and repeat the above steps to test the next power supply of the device under test.

The embodiment of the present invention takes two power supplies as an example for description, but this does not limit the number of power supplies, and other numbers of power supplies may be used in other embodiments.

According to the specifications of the power supply, define the current sharing regulation capability, the reference current sharing unbalance and the reference output voltage corresponding to each power supply, and determine the upper and lower voltage limits of the power supply based on the current sharing regulation capability and the reference output voltage. In this embodiment, ΔV represents the current sharing adjustment capability, Vout represents the reference output voltage of the power supply, δrate represents the reference current sharing unbalance, Vout1 represents the upper limit voltage, Vout2 represents the lower limit voltage, Vout1=Vout-ΔV, Vout2=Vout+ΔV.

Adjust the output voltage of one of the power supplies of the device under test to the lower limit voltage, obtain the current of each power supply, calculate the first current current sharing imbalance corresponding to the lower limit voltage according to the current, and determine whether the first current current sharing imbalance is less than or equal to the reference current sharing imbalance. The test host computer sends a command to the first power supply according to the address signal to enter the "current sharing adjustment capability test program 1". After the first power supply receives this signal, it adjusts the output voltage to Vout1, and the test host computer obtains the current of the two power supplies from the register. Iout1 and Iout2, and calculate the value δ1 of the first current current sharing unbalance at this time according to the current, and determine whether the first current current sharing unbalance is less than or equal to δrate.

In some embodiments, the calculating the first current current sharing imbalance degree corresponding to the lower limit voltage according to the current includes: calculating an average current of all currents, and calculating a difference between the current of the power supply and the average current and obtaining a first current current sharing imbalance degree based on the ratio of the difference value to the average current. Average current Iavg=(Iout1+Iout2)/2, δ1=(Iout1-Iavg)/Iavg*100%.

In some embodiments, the obtaining the first current current sharing imbalance degree based on the ratio of the difference to the average current includes: calculating a variance of the acquired current, and judging whether the variance is greater than a threshold; and responding to The variance is not greater than the threshold, and the first current current sharing imbalance degree is calculated. If the variance of the current is too large, it means that the performance between the power supplies is not stable, and the specifications of the power supplies can be adjusted so that the overall performance of the power supplies is not much different.

In some embodiments, the method further includes: in response to the first current current sharing unbalance degree being greater than the reference current sharing unbalance degree, confirming that the current sharing adjustment capability of the power supply is abnormal and restoring the output voltage to the reference output voltage. If δ1>δrate, restore the output voltage to the default Vout and report that the test fails.

In response to the first current unbalance degree of current sharing being less than or equal to the reference current sharing unbalance degree, the output voltage is adjusted to the upper limit voltage, the current of each power supply is obtained, and the second current current sharing unbalance degree corresponding to the upper limit voltage is calculated according to the current And it is judged whether the second current current sharing imbalance degree is less than or equal to the reference current sharing imbalance degree. If δ1<=δrate, restore the output voltage to the default Vout, and report that the test is passed. The host computer sends an order to the first power supply to enter the "current sharing adjustment capability test program 2". After the first power supply receives this signal, it adjusts the output voltage to vout2, and the test host computer obtains the currents Iout1 and Iout2 of the two power supplies from the register. The value δ2 of the second current current sharing unbalance degree at this time is calculated according to the current, and it is judged whether the second current current sharing unbalance degree is less than or equal to δrate.

In response to the second current current sharing unbalance degree being less than or equal to the reference current sharing unbalance degree, it is confirmed that the current sharing adjustment capability of the power supply is normal and the above steps are repeated to test the next power supply of the device under test. If δ2<=δrate, restore the output voltage to the default Vout, and report that the test is passed, the first power supply test ends, and the second power supply test is performed. Repeat the above steps until all power supplies have completed the test.

The embodiment of the present invention realizes the test of the current sharing adjustment capability in the actual manufacturing production line, and can accurately and automatically test the current sharing adjustment capability in the R&D laboratory and the manufacturing production line, thereby improving the accuracy and efficiency. Reduce costs; and improve product quality, reduce the uneven flow problem caused by insufficient flow adjustment ability in subsequent applications.

It should be particularly pointed out that the steps in each embodiment of the above-mentioned method for testing the current sharing adjustment capability of the power supply can be crossed, replaced, added, and deleted. The method of capability should also belong to the protection scope of the present invention, and the protection scope of the present invention should not be limited to the embodiments.

Based on the above purpose, in a second aspect of the embodiments of the present invention, a system for testing the current sharing adjustment capability of a power supply is proposed, including: a preset module configured to define the current sharing adjustment capability corresponding to each power supply according to the specifications of the power supply , the reference current sharing unbalance and the reference output voltage, and determine the upper limit voltage and lower limit voltage of the power supply based on the current sharing adjustment capability and the reference output voltage; the first test module is configured to The output voltage of one of the power supplies is adjusted to the lower limit voltage, the current of each power supply is obtained, the first current current sharing unbalance corresponding to the lower limit voltage is calculated according to the current, and the first current current sharing unbalance is judged whether the degree is less than or equal to the reference current-sharing unbalance degree; the second test module is configured to respond to the first current current-sharing unbalance degree being less than or equal to the reference current-sharing unbalance degree, send the output The voltage is adjusted to the upper limit voltage, the current of each power supply is obtained, the second current current sharing unbalance corresponding to the upper limit voltage is calculated according to the current, and whether the second current current sharing unbalance is less than or equal to the reference current sharing unbalance degree; and an execution module configured to confirm that the current sharing adjustment capability of the power supply is normal in response to the second current current sharing unbalance degree being less than or equal to the reference current sharing unbalance degree And repeat the above steps to test the next power supply of the device under test.

In some embodiments, the system further includes: a second execution module configured to confirm that the current sharing adjustment capability of the power supply is abnormal in response to the first current current sharing imbalance degree being greater than the reference current sharing imbalance degree and restore the output voltage to the reference output voltage.

In some embodiments, the first test module is configured to: calculate an average current of all currents, and calculate a difference between the current of the power supply and the average current; and based on the difference and the average current The ratio of , obtains the first current current sharing unbalance degree.

In some embodiments, the first test module is configured to: calculate the variance of the acquired current, and determine whether the variance is greater than a threshold; and in response to the variance not greater than the threshold, calculate the first current Current unbalance.

Based on the above objective, in a third aspect of the embodiments of the present invention, a computer device is provided, including: at least one processor; and a memory, where the memory stores computer instructions that can be executed on the processor, and the instructions are executed by the processor to The following steps are implemented: S1. Define the current sharing regulation capability, the reference current sharing unbalance and the reference output voltage corresponding to each power supply according to the specifications of the power supply, and determine the upper limit voltage and lower limit voltage of the power supply based on the current sharing regulation capability and the reference output voltage. ; S2, adjust the output voltage of one of the power supplies of the device to be tested to the lower limit voltage, obtain the current of each power supply, calculate the first current current-sharing unbalance corresponding to the lower limit voltage according to the current, and judge the first current current-sharing imbalance whether the current sharing unbalance degree is less than or equal to the reference current sharing unbalance degree; S3. In response to the first current current sharing unbalance degree being less than or equal to the reference current sharing unbalance degree, adjust the output voltage to the upper limit voltage, and obtain the current of each power supply, according The current calculates the second current current sharing imbalance degree corresponding to the upper limit voltage and determines whether the second current current sharing imbalance degree is less than or equal to the reference current sharing imbalance degree; and S4, in response to the second current current sharing imbalance degree being less than or Equal to the reference current sharing unbalance, confirm that the current sharing adjustment capability of the power supply is normal and repeat the above steps to test the next power supply of the device under test.

In some embodiments, the step further includes: in response to the first current current sharing unbalance degree being greater than the reference current sharing unbalance degree, confirming that the current sharing adjustment capability of the power supply is abnormal and restoring the output voltage to the reference output voltage.

In some embodiments, the calculating the first current current sharing imbalance degree corresponding to the lower limit voltage according to the current includes: calculating an average current of all currents, and calculating a difference between the current of the power supply and the average current and obtaining a first current current sharing imbalance degree based on the ratio of the difference value to the average current.

In some embodiments, the obtaining the first current current sharing imbalance degree based on the ratio of the difference to the average current includes: calculating a variance of the acquired current, and judging whether the variance is greater than a threshold; and responding to The variance is not greater than the threshold, and the first current current sharing imbalance degree is calculated.

As shown in FIG. 2 , it is a schematic diagram of the hardware structure of an embodiment of the computer device for testing the current sharing adjustment capability of the power supply provided by the present invention.

Taking the device shown in FIG. 2 as an example, the device includes a processor 301 and a memory 302 , and may also include an input device 303 and an output device 304 .

The processor 301 , the memory 302 , the input device 303 and the output device 304 may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 2 .

As a non-volatile computer-readable storage medium, the memory 302 can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the test power supply current sharing adjustment capability in the embodiment of the present application. The program instruction/module corresponding to the method. The processor 301 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 302, that is, implementing the method for testing the current sharing adjustment capability of the above method embodiments.

The memory 302 may include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required by at least one function; data etc. Additionally, memory 302 may include high speed random access memory, and may also include nonvolatile memory, such as at least one magnetic disk storage device, flash memory device, or other nonvolatile solid state storage device. In some embodiments, memory 302 may optionally include memory located remotely from processor 301, which may be connected to the local module via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The input device 303 can receive input information such as user name and password. The output device 304 may include a display device such as a display screen.

The program instructions/modules corresponding to one or more methods for testing the current sharing regulation capability of the power supply are stored in the memory 302, and when executed by the processor 301, the method for testing the current sharing regulation capability of the power supply in any of the above method embodiments is executed.

Any embodiment of the computer device that executes the above-mentioned method for testing the current sharing adjustment capability of a power supply can achieve the same or similar effects as any of the foregoing method embodiments corresponding to it.

The present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program that executes the above method when executed by a processor.

Finally, it should be noted that those of ordinary skill in the art can understand that all or part of the process in the method of the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. In the computer-readable storage medium, when the program is executed, it may include the processes of the foregoing method embodiments. Wherein, the storage medium of the program may be a magnetic disk, an optical disk, a read only memory (ROM) or a random access memory (RAM) or the like. The above computer program embodiments can achieve the same or similar effects as any of the foregoing method embodiments corresponding thereto.

The above are exemplary embodiments of the present disclosure, but it should be noted that various changes and modifications may be made without departing from the scope of the disclosure of the embodiments of the present invention as defined in the claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements disclosed in the embodiments of the present invention may be described or claimed in the singular, unless explicitly limited to the singular, the plural may also be construed.

It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It will also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

The above-mentioned embodiments of the present invention disclose the serial numbers of the embodiments only for description, and do not represent the advantages and disadvantages of the embodiments.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above embodiments can be completed by hardware, or can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. The storage medium can be a read-only memory, a magnetic disk or an optical disk, and the like.

Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope (including the claims) disclosed by the embodiments of the present invention is limited to these examples; under the idea of the embodiments of the present invention , the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention should be included within the protection scope of the embodiments of the present invention.

Claims (10)

1. A method for testing current sharing and regulating energy of a power supply is characterized by comprising the following steps:

defining current-sharing regulation capacity, reference current-sharing unbalance and reference output voltage corresponding to each power supply according to the specification of the power supplies, and determining the upper limit voltage and the lower limit voltage of the power supplies based on the current-sharing regulation capacity and the reference output voltage;

adjusting the output voltage of one power supply of the equipment to be tested to the lower limit voltage, acquiring the current of each power supply, calculating a first current-sharing unbalance degree corresponding to the lower limit voltage according to the current, and judging whether the first current-sharing unbalance degree is smaller than or equal to the reference current-sharing unbalance degree;

responding to the first current sharing unbalance degree being smaller than or equal to the reference current sharing unbalance degree, adjusting the output voltage to be the upper limit voltage, obtaining the current of each power supply, calculating a second current sharing unbalance degree corresponding to the upper limit voltage according to the current, and judging whether the second current sharing unbalance degree is smaller than or equal to the reference current sharing unbalance degree; and

and in response to the second current sharing unbalance degree being smaller than or equal to the reference current sharing unbalance degree, confirming that the current sharing regulation capability of the power supply is normal and repeating the steps to test the next power supply of the equipment to be tested.

2. The method of claim 1, further comprising:

and responding to the first current sharing unbalance degree being larger than the reference current sharing unbalance degree, confirming that the current sharing regulation capacity of the power supply is abnormal and restoring the output voltage to the reference output voltage.

3. The method of claim 1, wherein the calculating a first current share unbalance degree corresponding to the lower limit voltage according to the current comprises:

calculating the average current of all the currents and calculating the difference value of the current of the power supply and the average current; and

and obtaining a first current mean-current unbalance degree based on the ratio of the difference value to the average current.

4. The method of claim 3, wherein the deriving a first current share imbalance based on the ratio of the difference to the average current comprises:

calculating the variance of the obtained current, and judging whether the variance is greater than a threshold value; and

in response to the variance not being greater than the threshold, calculating the first current degree of current share unbalance.

5. A system for testing current share regulation capability of a power supply, comprising:

the preset module is configured to define current-sharing regulation capacity, reference current-sharing unbalance and reference output voltage corresponding to each power supply according to the specification of the power supply, and determine the upper limit voltage and the lower limit voltage of the power supply based on the current-sharing regulation capacity and the reference output voltage;

the first test module is configured to adjust the output voltage of one of the power supplies of the device to be tested to the lower limit voltage, obtain the current of each power supply, calculate a first current unbalance degree corresponding to the lower limit voltage according to the current, and judge whether the first current unbalance degree is less than or equal to the reference unbalance degree;

the second testing module is configured to respond that the first current sharing unbalance degree is smaller than or equal to the reference current sharing unbalance degree, adjust the output voltage to the upper limit voltage, obtain the current of each power supply, calculate a second current sharing unbalance degree corresponding to the upper limit voltage according to the current and judge whether the second current sharing unbalance degree is smaller than or equal to the reference current sharing unbalance degree; and

and the execution module is configured to respond that the second current sharing unbalance degree is smaller than or equal to the reference current sharing unbalance degree, confirm that the current sharing regulation capability of the power supply is normal, and repeatedly run the execution module to test the next power supply of the device to be tested.

6. The system of claim 5, further comprising:

and the second execution module is configured to respond to the first current sharing unbalance degree being larger than the reference current sharing unbalance degree, confirm that the current sharing regulation capacity of the power supply is abnormal and restore the output voltage to the reference output voltage.

7. The system of claim 5, wherein the first testing module is configured to:

calculating the average current of all the currents and calculating the difference value of the current of the power supply and the average current; and

and obtaining a first current mean-current unbalance degree based on the ratio of the difference value to the average current.

8. The system of claim 7, wherein the first testing module is configured to:

calculating the variance of the obtained current, and judging whether the variance is greater than a threshold value; and

in response to the variance not being greater than the threshold, calculating the first current degree of current share unbalance.

9. A computer device, comprising:

at least one processor; and

a memory storing computer instructions executable on the processor, the instructions when executed by the processor implementing the steps of the method of any one of claims 1 to 4.

10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.

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