CN110687994A - Control method of redundant power supply device - Google Patents

Abstract

A control method of redundant power supply device is suitable for the redundant power supply device which is connected with a power demand device and is provided with a plurality of power supplies. The control method comprises the steps of detecting and calculating the power demand wattage of the power demand device, judging the value of the operation quantity of the power supply according to the power demand wattage and the efficiency operation data, generating a control command according to the value, and selectively controlling the redundant power supply device according to the control command. The efficiency operation data indicates a relationship between the power supply wattage of the redundant power supply device and the operation number of the plurality of power supplies, and the relationship is related to the power supply efficiency of the redundant power supply device.

Description

Control method of redundant power supply device

technical field

The present invention relates to a control method of a power supply device, in particular to a control method of a redundant power supply device.

Background technique

A power supply device containing two or more power supplies is often seen in servers or other high-end computers, called a redundant power supply, each of which can provide power independently to the server. When one of the power supplies fails, the other power supplies will continue to operate to supply power to the server to ensure the normal operation of the server.

Generally speaking, the number of power supplies of the redundant power supply device matched with the server is determined according to the highest power demand of the server. For example, when the highest power demand of the server is the total power that N power supplies can provide, a redundant power supply device with (N+1) power supplies will be selected to execute the server's power supply. Power supply, wherein N power supplies will provide power to the server equally according to the current power demand of the server.

However, when the server system is in normal operation and light load, the N power supplies provide power equally, so that each power supply is not operating at the optimal power supply efficiency point, that is, a lot of power loss will be generated during the conversion process. , and cannot be used effectively.

SUMMARY OF THE INVENTION

In view of the above, an object of the present invention is to provide a control method of a redundant power supply device.

According to a control method of a redundant power supply device according to an embodiment of the present invention, the applicable redundant power supply device is connected to a power demand device and has a plurality of power supplies. The control method includes detecting and calculating the power demand wattage of the power demand device, judging the value of the operation quantity of the power supply according to the power demand wattage and the efficiency operation data and generating a control command accordingly, and selectively according to the control command Controls redundant power supplies. The efficiency operation data indicates the relationship between the power supply wattage of the redundant power supply device and the operating quantity of the plurality of power supplies, and the relationship is related to the power supply efficiency of the redundant power supply device.

According to a control method of a redundant power supply device according to another embodiment of the present invention, the applicable redundant power supply device is connected to the power demand device and has N power supplies, wherein each power supply has a maximum Operating wattage W watts. The control method includes detecting and calculating the power demand wattage of the power demand device, judging the value of the operating quantity of the power supply according to the power demand wattage and the switching wattage threshold, and generating a control command accordingly, and selectively controlling Commands control redundant power supplies. The switching wattage threshold is between W times M watts and W times (M+1) watts. When the power demand wattage changes from less than the switching wattage threshold to greater than the switching wattage threshold, the value of the number of operations From (M+1) to (M+2), and M is a non-negative integer.

With the above structure, the control method of the redundant power supply device disclosed in the present application can dynamically determine the operating quantity of the power supply of the redundant power supply device according to the power demand wattage and the efficiency operation data of the power demand device. value, or dynamically according to the power demand wattage and switching wattage threshold to determine the value of the operating quantity of the power supply, so that the redundant power supply device can maintain the operation with the best power supply efficiency and reduce the waste of power .

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

Description of drawings

1 is a schematic diagram of a system architecture of a control method applicable to a redundant power supply device according to an embodiment of the present invention;

2 is a flowchart of a control method of a redundant power supply device according to an embodiment of the present invention;

3 is a detailed flowchart of a control method of a redundant power supply device according to an embodiment of the present invention;

4 is a detailed flowchart of a method for controlling a redundant power supply device according to another embodiment of the present invention;

5 is a schematic diagram of efficiency operation data according to an embodiment of the present invention;

6 is a detailed flowchart of a control method of a redundant power supply device according to an embodiment of the present invention.

where the reference number

1 Redundant power supply control system

10 Redundant power supply units

101a Power Supply

101b Power Supply

20 Controller

30 Power Demand Devices

C1 Efficiency Curve

C11 First Scenario Efficiency Curve

C12 Second Scenario Efficiency Curve

O1 rendezvous point

Detailed ways

The detailed features and advantages of the present invention are described in detail in the following embodiments, and the content is sufficient to enable any person skilled in the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of claims and the accompanying drawings , any person skilled in the related art can easily understand the related objects and advantages of the present invention. The following examples are intended to further illustrate the point of view of the present invention in detail, but are not intended to limit the scope of the present invention in any point of view.

Please refer to FIG. 1 and FIG. 2, wherein FIG. 1 is a schematic diagram of a system architecture of a control method for a redundant power supply according to an embodiment of the present invention. FIG. 1 exemplarily shows a redundant power supply device control system 1 to which the control method provided by the present invention is applied. The structure of the redundant power supply device control system 1 will be described below, and the detailed control method will be described in the following. described later. As shown in FIG. 1 , the redundant power supply device control system 1 includes a redundant power supply device 10 , a controller 20 and a power demand device 30 , wherein the redundant power supply device 10 communicates with the power demand device 30 through the controller 20 . Electrical connection.

The redundant power supply device 10 includes a plurality of power supplies. In the embodiment shown in FIG. 1, the redundant power supply device 10 includes two power supplies 101a and 101b; in another embodiment, the control method provided by the present invention can also be applied to include five or other A redundant power supply unit for the number of power supplies. The power provided by each power supply has a maximum operating wattage respectively, and the maximum power supply wattage of the redundant power supply device is at most the sum of the power supplies minus one and then multiplied by the maximum operating wattage. The wattage value obtained. Taking the maximum operating wattage of each power supply as 1200 watts as an example, in the embodiment shown in FIG. 1 , the maximum power supply wattage of the redundant power supply device 10 is (2-1)*1200 watts, That is, 1200 watts; and for a redundant power supply device including five power supplies, the maximum power supply wattage is (5-1)*1200 watts, or 4800 watts.

The controller 20 is, for example, a chassis management controller (CMC) or a rack management controller (RMC), which can be respectively connected to the redundant power supply devices through a power management bus (PMBus) 10 and the power demand device 30 to detect and calculate the power required by the power demand device 30, and then execute the control of the redundant power supply device 10 according to the control method provided in this application. Wherein, the power demand device 30 is, for example, a server or other high-end computer.

Next, please refer to FIG. 1 and FIG. 2 together to describe a control method of the redundant power supply device 10 provided by an embodiment of the present invention, wherein FIG. 2 is a flowchart of the control method. In step S11 of FIG. 2 , the controller 20 detects and calculates the power demand wattage of the power demand device 30 . Next, in step S13, the controller 20 determines the value of the operating quantity of the power supplies 101a and 101b according to the obtained power demand wattage and the efficiency operation data, that is, the quantity of the power supplies 101a and 101b to be turned on, so as to generate a control instruction. Then in step S15, the controller 20 selectively outputs the control command to the redundant power supply device 10, so as to control the redundant power supply device 10 according to the control command. In one embodiment, the controller 20 can detect the power demand wattage of the power demand device 30 at a preset frequency, and determine the value of the operating quantity of the power supply devices 101 a and 101 b accordingly, so as to control the redundant power supply device 10 . , to achieve the effect of dynamic control.

1, please refer to FIG. 1, FIG. 2 and FIG. 3 together, wherein FIG. 3 is a detailed flowchart of step S11 of FIG. 1 according to an embodiment of the present invention. In step S101, the controller 20 may control the power supplies 101a and 101b of the redundant power supply device 10 to supply power to the power demand device 30, and detect the real-time power consumption of each power supply 101a and 101b. Next, in step S103, the controller 20 calculates the power demand wattage of the power demand device 30 according to the real-time power consumption of each power supply 101a and 101b. For example, the controller 20 calculates the sum of the real-time power consumption of the power supplies 101 a and 101 b as the power demand wattage of the power demand device 30 . In addition, the controller 20 can also set the real-time power consumption of the power supplies 101a and 101b to have different weights respectively to calculate the power demand wattage of the power demand device 30, which is not limited in the present invention.

In another embodiment, please refer to FIG. 1 , FIG. 3 and FIG. 4 , wherein FIG. 4 is a detailed flowchart of a control method of the redundant power supply device 10 according to another embodiment of the present invention. In this embodiment, after detecting the real-time power consumption of each of the power supplies 101 a and 101 b of the redundant power supply device 10 (ie, step S101 in FIG. 3 ), the controller 20 determines the power supply according to the real-time power consumption Whether the suppliers 101a and 101b operate normally, as shown in step S102. For example, when the power supplies 101a and 101b are set to have the same power supply weight, the power supplies 101a and 101b should have the same real-time power consumption. In this case, if the power supply 101a detected by the controller 20 The real-time power consumption of 101b and 101b are very different, indicating that the operation of the power supply 101a or 101b is abnormal. In step S104, when the controller 20 determines that one of the power supplies 101a and 101b operates abnormally, both the power supplies 101a and 101b controlling the redundant power supply device 10 are supplied with power to the power demand device. In other words, when the controller 20 determines that the redundant power supply device 10 is abnormal, the dynamic control method will be terminated. On the other hand, when the controller 20 determines that both the power supplies 101a and 101b are operating normally, the controller 20 will continue to perform the calculation of the power demand wattage of the power demand device 30 (i.e., step S103 in FIG. 3 ).

After obtaining the power demand wattage of the power demand device 30, the controller 20 will determine the value of the operating quantity of the power supplies 101a and 101b according to the power demand wattage and the efficiency operation data, as described in step S13 of FIG. 1 . For a detailed description of this step, please refer to FIG. 1 , FIG. 2 and FIG. 5 , wherein FIG. 5 is a schematic diagram of efficiency operation data according to an embodiment of the present invention. As mentioned above, the controller 20 determines the value of the operating quantities of the power supplies 101 a and 101 b according to the power demand wattage and the efficiency operation data of the power demand device 30 , wherein the efficiency operation data indicates the redundant power supply device 10 The relationship between the power supply wattage and the operating quantity of the power supplies 101 a and 101 b is related to the power supply efficiency of the redundant power supply device 10 . Further, the efficiency operation data can be pre-stored in the memory of the controller 20, and as shown in FIG. 5, the form can be an efficiency curve C1 with the power supply wattage as the X-axis and the power supply efficiency as the Y-axis, wherein, The points on the efficiency curve C1 respectively contain the corresponding operating quantities. FIG. 5 exemplarily shows the efficiency curve C1 corresponding to the redundant power supply device 10 including two power supplies 101a and 101b.

In more detail, the efficiency curve C1 is composed of a first situational efficiency curve C11 and a second situational efficiency curve C12, wherein the first situational efficiency curve C11 indicates that in the situation where one power supply 101a or 101b is turned on, the redundant The relationship between the power supply wattage and the power supply efficiency of the power supply device 10; the second scenario efficiency curve C12 indicates the power supply wattage and power supply of the redundant power supply device 10 in the scenario where the two power supplies 101a and 101b are turned on The relationship between efficiencies; the efficiency curve C1 is composed of the part with the maximum efficiency value compared to the first situational efficiency curve C11 and the second situational efficiency curve C12. In this embodiment, the power supply wattage corresponding to the intersection point O1 of the partial line segment from the first situational efficiency curve C11 and the second situational efficiency curve C12 in the efficiency curve C1 is set as the switching wattage threshold. When the power demand wattage of the power demand device 30 changes from less than the switching wattage threshold to greater than the switching wattage threshold, the value of the operating quantity of the power supplies 101a and 101b will change from one to two.

In another embodiment, the efficiency operation data can also be stored in the memory of the controller 20 in the form of a look-up table, wherein the way of generating the look-up table is similar to the way of generating the efficiency curve described above. For details, please refer to Table 1. The first column of Table 1 includes a plurality of power supply wattage ranges, wherein the power supply wattage ranges are from zero to the maximum power supply wattage of the redundant power supply device 10 at preset intervals. divided into, in this embodiment, the maximum power supply wattage is 1200 watts and the preset spacing is 120 watts as an example, but this case does not limit the actual values of these parameters; the second column of Table 1 includes a plurality of first contextual efficiency values, wherein each first contextual efficiency value indicates a context in which one power supply 101a or 101b is turned on to supply watts in the corresponding power supply wattage range (ie, the power supply wattage range in the same column in the table) , the power supply efficiency of the redundant power supply device 10; the third column includes a plurality of second situational efficiency values, wherein each second situational efficiency value indicates that the two power supplies 101a and 101b are turned on to supply the corresponding power supply watts The power supply efficiency of the redundant power supply device 10 in the context of the wattage in the number range; the fourth column indicates the maximum efficiency value compared to the first context efficiency value and the second context efficiency value; and the fifth column The row indicates the operating quantity of the power supplies 101a and 101b corresponding to the maximum efficiency value of the fourth column.

Table 1

In this embodiment, the lookup table stored in the controller 20 may include the first and fifth columns or the first, fourth and fifth columns of Table 1. Wherein, the efficiency curve C1 in the foregoing embodiment can be drawn according to the data of the first and fourth vertical rows.

To put it simply, in one embodiment, the control method of the redundant power supply device 10 may further include obtaining the aforementioned first situational efficiency value and second situational efficiency value; when the first situational efficiency value is greater than the second situational efficiency value When the value of the operation quantity corresponding to the first situation efficiency value (the first value) and the corresponding power supply wattage range, the efficiency operation data is generated; and when the second situation efficiency value is greater than the first situation efficiency value, the Efficiency operation data including an operation quantity value (a second value) corresponding to the second situational efficiency value and a corresponding power supply wattage range is generated.

The above embodiment takes the control of the redundant power supply device 10 including two power supplies 101a and 101b as an example, however, the control method provided by the present invention can also be implemented in a redundant power supply including more than two power supplies device. For example, for a redundant power supply device including three power supplies, the method of generating the efficiency operation data includes comparing the efficiency values in three scenarios (one, two, and three power supplies turned on), The value of the operation quantity corresponding to the maximum efficiency value is stored in the efficiency operation data, and the same is true for a redundant power supply device including other quantities of power supplies. The above-mentioned generation method of the efficiency operation data can be executed by the controller 20 or an external processor, and then the efficiency operation data can be stored in the memory of the controller 20 .

Furthermore, as described in the prior art paragraph, the existing method of controlling a redundant power supply device is to keep all the power supplies in the device in an on state. Therefore, when the redundant power supply device 10 with two power supplies 101a and 101b is controlled by the existing method, the power supply efficiency is equivalent to the aforementioned second situational efficiency value (ie, the third column of Table 1). In contrast, the control method provided in this application can dynamically adjust the value of the operating quantities of the power supplies 101a and 101b according to the power demand wattage of the power demand device 30, so as to have better power supply efficiency (ie, the power supply efficiency in Table 1). fourth column).

1 , please refer to FIG. 1 , FIG. 2 and FIG. 6 , wherein FIG. 6 is a detailed flowchart of step S15 in FIG. 1 according to an embodiment of the present invention. Step S15 of FIG. 1 may include steps S151 to S157 of FIG. 6 . In steps S151-S153, the controller 20 receives an option command and determines the content of the option command. Further, the option command can be set in a basic input/output system (BIOS). As shown in step S155, when the option command instructs to control the redundant power supply device 10 according to the control command, the controller 20 outputs the control command to the redundant power supply device 10 to control the redundant power supply device 10 according to the control command; In contrast, as shown in step S157 , when the option command indicates not to control the redundant power supply device 10 according to the control command, the controller 20 will generate another control command to control all the power sources of the redundant power supply device 10 Both the suppliers 101a and 101b supply power to the power demand device 30 .

In another embodiment, the controller 20 may simultaneously detect the voltage, current, temperature, etc. of the redundant power supply device 10 by using a plurality of pins during the execution of the dynamic control methods described in the above-mentioned embodiments. The operating parameter, the controller 20 will generate a warning signal when the supply voltage is too low (Under voltage), the supply current is too high (Over current) or the device internal temperature is too high (Over temperature). In this embodiment, step S15 of FIG. 1 includes determining whether an alarm signal is generated by the controller 20; when no alarm signal is generated, the controller 20 controls the redundant power supply device 10 according to the control command; and when there is an alarm When the signal is generated, the controller 20 supplies power to all the power supply devices 101 a and 101 b controlling the redundant power supply device 10 to the power demand device 30 . In yet another embodiment, during the execution of steps S11 to S15 of the dynamic control method, once a warning signal is generated, the controller 20 can immediately terminate the dynamic control method and use all the power supplies of the redundant power supply device 10 instead. A control method in which both the suppliers 101a and 101b are turned on.

Each of the above-mentioned embodiments takes controlling the redundant power supply device 10 including two power supplies 101a and 101b as an example, however, the control method provided by the present invention can also be implemented in a redundant power supply including more than two power supplies power supply device. To illustrate with algebra, please refer to FIG. 1 and FIG. 6 , wherein FIG. 6 is a flowchart of a control method of a redundant power supply device according to another embodiment of the present invention. The control method provided in this embodiment can be implemented by a control system including a redundant power supply device, a controller, and a power demand device, wherein the types and connection relationships between the above-mentioned components are similar to those shown in FIG. 1 . The control system will not be repeated here. The control method shown in FIG. 6 is applicable to a redundant power supply device having N power supplies, where N is a natural number, and each power supply has a maximum operating wattage W, where W is a non-negative real number. Therefore, the maximum power supply wattage of the redundant power supply device is at most W*(N-1) watts.

In step S21, the controller detects and calculates the power demand wattage of the power demand device, and the detailed process is similar to the aforementioned step S11 shown in FIG. 2, and will not be repeated here. In step S23, the controller determines the value of the operating quantity of the power supply, that is, the quantity of the power supply to be turned on, according to the obtained power demand wattage and the switching wattage threshold, and generates a control command accordingly. The switching wattage threshold is bounded between W*M watts and W*(M+1) watts, where M is a non-negative integer and less than or equal to (N-2). When the power demand wattage of the power demand device changes from less than the switching wattage threshold to greater than the switching wattage threshold, the controller will determine that the value of the operating quantity of the power supply is changed from (M+1) to (M+2) indivual. Further, when M is zero, the switching wattage threshold is 50-80% of W. Then in step S25, the controller selectively outputs the control command generated in step S23 to the redundant power supply device, so as to control the redundant power supply device according to the control command. The detailed flow of this step is similar to the previous one Step S13 shown in FIG. 2 will not be repeated here. In addition, in one embodiment, when the multiple power supplies of the redundant power supply device have different power supply efficiency levels, such as copper, silver, gold, platinum or titanium levels, the controller 20 will The determined number of operations is prioritized to turn on the power supply with a higher conversion efficiency level, so that the overall power supply efficiency of the redundant power supply device is optimal.

With the above structure, the control method of the redundant power supply device disclosed in the present application can dynamically determine the operating quantity of the power supply of the redundant power supply device according to the power demand wattage and the efficiency operation data of the power demand device. value, or dynamically according to the power demand wattage and switching wattage threshold to determine the value of the operating quantity of the power supply, so that the redundant power supply device can maintain the operation with the best power supply efficiency and reduce the waste of power .

Of course, the present invention can also have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding Changes and deformations should belong to the protection scope of the appended claims of the present invention.

Claims (14)

1. A control method for a redundant power supply device, the redundant power supply device is connected to a power demand device and has a plurality of power supplies, the control method comprises:

detecting and calculating a power demand wattage of the power demand device;

judging the operation quantity values of the power supplies according to the power demand wattage and efficiency operation data so as to generate a control instruction; and

selectively controlling the redundant power supply device according to the control command;

the efficiency operation data indicates a relation between the power supply wattage of the redundant power supply device and the operation number of the power supplies, and the relation is related to the power supply efficiency of the redundant power supply device.

2. The method of claim 1, further comprising:

obtaining a first situation efficiency value, wherein the first situation efficiency value indicates the power supply efficiency of the redundant power supply device when the redundant power supply device operates in a power supply wattage range and the operation number of the power supplies has a first value;

obtaining a second situation efficiency value, wherein the second situation efficiency value indicates the power supply efficiency of the redundant power supply device when the redundant power supply device operates in the power supply wattage range and the operation number of the power supplies has a second value; and

when the first scenario efficiency value is greater than the second scenario efficiency value, the efficiency operation data including the first value and the corresponding power supply wattage range is generated.

3. The control method of claim 1, wherein the step of detecting and calculating the power demand wattage of the power demand device comprises:

controlling the power supplies to supply power to the power demand device, and detecting a plurality of instant power consumptions of the power supplies; and

selectively calculating the wattage of the power demand device according to the instant power consumptions.

4. The control method of claim 3, wherein the step of calculating the wattage required by the power-requiring device selectively based on the instantaneous power consumptions comprises:

judging whether the power supplies operate normally according to the instant power consumptions;

when the power supplies are all in normal operation, the step of calculating the power demand wattage of the power demand device according to the instant power consumptions is executed; and

when one of the power supplies is abnormal, the power supplies are controlled to supply power to the power demand device.

5. The method as claimed in claim 1, wherein the step of selectively controlling the redundant power supply device according to the control command comprises:

receiving an option instruction;

when the option instruction indicates to control the redundant power supply device according to the control instruction, controlling the redundant power supply device according to the control instruction; and

and when the option instruction indicates that the redundant power supply is not controlled according to the control instruction, controlling the power supplies to supply power to the power demand device.

6. The method as claimed in claim 1, wherein the step of selectively controlling the redundant power supply device according to the control command comprises:

judging whether a warning signal is generated;

when the warning signal is not generated, controlling the redundant power supply device according to the control command; and

when the warning signal is generated, the power supplies are controlled to supply power to the power demand device.

7. The method of claim 1, further comprising controlling the power supplies to supply power to the power demand device according to an alarm signal.

8. A control method for redundant power supply device, the redundant power supply device is connected to a power demand device and has N power supplies, each of the power supplies has a maximum operation wattage W watt, the control method comprises:

detecting and calculating a power demand wattage of the power demand device;

judging the operation number values of the power supplies according to the power demand wattage and a switching wattage threshold value so as to generate a control instruction; and

selectively controlling the redundant power supply device according to the control command;

wherein the switching wattage threshold is bounded between W multiplied by M watts and W multiplied by (M +1) watts, the value of the number of operations is changed from (M +1) to (M +2) when the power demand wattage is changed from being less than the switching wattage threshold to being greater than the switching wattage threshold, and M is a non-negative integer.

9. The control method of claim 8, wherein the switching wattage threshold is 50-80% of W when M is zero.

10. The control method of claim 8, wherein the step of detecting and calculating the power demand wattage of the power demand device comprises:

controlling the power supplies to supply power to the power demand device, and detecting a plurality of instant power consumptions of the power supplies; and

selectively calculating the wattage of the power demand device according to the instant power consumptions.

11. The method of claim 10, wherein the step of calculating the wattage of the power demand device selectively according to the instantaneous power consumptions comprises:

judging whether the power supplies operate normally according to the instant power consumptions;

when the power supplies are all in normal operation, the step of calculating the power demand wattage of the power demand device according to the instant power consumptions is executed; and

when one of the power supplies is abnormal, the power supplies are controlled to supply power to the power demand device.

12. The method as claimed in claim 8, wherein the step of selectively controlling the redundant power supply device according to the control command comprises:

receiving an option instruction;

when the option instruction indicates to control the redundant power supply device according to the control instruction, controlling the redundant power supply device according to the control instruction; and

and when the option instruction indicates that the redundant power supply is not controlled according to the control instruction, controlling the power supplies to supply power to the power demand device.

13. The method as claimed in claim 8, wherein the step of selectively controlling the redundant power supply device according to the control command comprises:

judging whether a warning signal is generated;

when the warning signal is not generated, controlling the redundant power supply device according to the control command; and

when the warning signal is generated, the power supplies are controlled to supply power to the power demand device.

14. The method of claim 8, further comprising controlling the power supplies to supply power to the power demand device according to an alarm signal.

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