Current sharing method and system of power supply module and manager

A technology of power module and manager, applied in emergency power arrangement, electrical components, circuit devices, etc., can solve the problem of PSU current sharing and energy consumption, etc.

Active Publication Date: 2015-05-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a current sharing method, system and manager of a power module, which can solve the problem of large current sharing and energy consumption of the PSU under the mixed power supply architecture in the prior art

Method used

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  • Current sharing method and system of power supply module and manager
  • Current sharing method and system of power supply module and manager
  • Current sharing method and system of power supply module and manager

Examples

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Embodiment 1

[0068] An embodiment of the present invention provides a current sharing method for a power module, which is applicable to figure 1 Power system shown. see figure 2 , the method flow includes:

[0069] Step 101: The manager determines the first output current ratio of the first PSU group and the second PSU group connected in parallel, and obtains that each PSU in the first PSU group and the second PSU group adjusts its respective output with the first output current ratio After the current flow, the sum of the first power loss of all PSUs and power supply systems in the first PSU group and the second PSU group.

[0070] Wherein, the first PSU group includes one or more parallel-connected PSUs and each PSU is powered by the HVDC system, and the second PSU group includes one or more parallel-connected PSUs and each PSU is powered by the AC system. see figure 1 , the first PSU group has N PSUs, including the PSU HVDC _i, i takes [0, 1, ..., N-1]; the second PSU group has M ...

Embodiment 2

[0079] An embodiment of the present invention provides a current sharing method for a power module, which is applicable to figure 1 Power system shown. see image 3 , the method flow includes:

[0080] Step 201: The manager determines a first output current ratio of the first PSU group and the second PSU group connected in parallel.

[0081] Wherein, the first PSU group includes one or more parallel-connected PSUs and each PSU is powered by the HVDC system, and the second PSU group includes one or more parallel-connected PSUs and each PSU is powered by the AC system.

[0082] In this embodiment, assuming that the first output current ratio is the output current ratio determined by the manager for the first time, then the first output current ratio may be a set initial output current ratio. The set initial output current ratio can be 1:1, or A:B, where both A and B are natural numbers.

[0083] It should be noted that this embodiment does not limit the timing for the manage...

Embodiment 3

[0122] The embodiment of the present invention provides a manager, applicable to figure 1 Power system shown. see Figure 5 , the apparatus includes a first determining module 301 , a second determining module 302 , a third determining module 303 , and a sending module 304 .

[0123] The first determination module 301 is used to determine the first output current ratio of the first power supply module PSU group and the second PSU group connected in parallel, and obtain the first output current ratio of each PSU in the first PSU group and the second PSU group After adjusting their respective output currents, the sum of the first power loss of all PSUs and power supply systems in the first PSU group and the second PSU group; wherein, the first PSU group includes one or more parallel-connected PSUs and each PSU is composed of The high-voltage DC system supplies power, and the second PSU group includes one or more parallel-connected PSUs, and each PSU is powered by the AC system...

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Abstract

The invention discloses a current sharing method and a current sharing system of a power supply module and a manager, and belongs to the field of power supply modules. The method includes the steps that: the manager determines a first output current ratio of a first PSU (Power Supply Module) set to a second PSU set which are in parallel, and obtains the sum of first power loss of all PSUs and a power supply system in the first PSU set and the second PSU set after the output current of each PSU in the PSU set and the second PSU set is regulated according to the first output current ratio; the first PSU set includes one or more parallel PSUs and is directly powered by a high voltage direct current system, and the second PSU set is powered by an alternating current system; a second output current ratio is determined and the sum of second power loss is obtained according to the first output current ratio; the sum of the first power loss is compared with the sum of the second power loss, and a third output current ratio is determined according to the comparison result and the second output current ratio; the third output current ratio is sent to the PSUs in the first PSU set and the second PSU set to allow the PSUs in the first PSU set and the second PSU set to regulate the output current according to the third output current ratio.

Description

technical field [0001] The present invention relates to the field of power modules, in particular to a current sharing method, system and manager of a power module. Background technique [0002] In order to meet the reliability requirements of the system, multiple power supply units (Power Supply Units, PSUs for short) are often used in parallel by using hot backup. However, due to differences among PSUs, after PSUs are connected in parallel, some PSUs may be overloaded, while some PSUs may be too lightly loaded, which is not good for the PSU itself. Therefore, a means is needed to make the output current of each PSU relatively average. This means, we call current sharing technology. [0003] There are many kinds of current sharing technologies. One current sharing technology is 1:1 current sharing, that is, the output current ratio of each PSU is 1:1. Another current sharing technology is to share current according to a fixed N:M (both N and M are natural numbers), where...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/00
Inventor 赵胜求陈玉堂张希俊李迎
Owner HUAWEI TECH CO LTD
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