Digital current equalizing method of power source module, power source module and communication equipment

A technology for power modules and communication equipment, applied in the field of power supply, can solve problems such as system instability and high failure risk, and achieve the effect of improving safety

Active Publication Date: 2011-04-06
HUAWEI DIGITAL POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a digital current sharing method for a power module, a power module and a communication device to solve the problem of system instability and high failure risk caused by the existing digital current sharing scheme relying too much on the current sharing controller

Method used

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  • Digital current equalizing method of power source module, power source module and communication equipment
  • Digital current equalizing method of power source module, power source module and communication equipment
  • Digital current equalizing method of power source module, power source module and communication equipment

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Embodiment 1

[0027] This embodiment provides a digital current sharing method for a power module, which is used to reduce risks in existing digital current sharing solutions and improve the safety of a power supply system.

[0028] The method of this embodiment includes: establishing a high-speed digital communication channel between each power module, and each power module transmits the current load current value of this module to other power modules in a broadcast manner, and at the same time receives the data transmitted by other power modules. The load current value coming over is stored (such as stored in the internal register of the DSP chip), each power module calculates the load average current value of a system according to the current load current value of all power modules, and according to the load average current value to The output current of each module is adjusted so that the output current value of each module is adjusted to the average current value of the load.

[0029] ...

Embodiment 2

[0044] This embodiment provides a digital current sharing method for a power module, which is used to reduce risks in existing digital current sharing solutions and improve the safety of a power supply system. image 3 It is a flow chart of the digital current sharing method of this embodiment, and the method includes the following steps:

[0045] Step S300, system initialization, setting initial parameter values;

[0046] For example, the initial parameter value may include the adjustment coefficients a and b required for the calculation of the disturbance value Δ described in Embodiment 1, and the proportional coefficient K required for generating the control voltage u(k) P and integral coefficient K I . Among them, K P and K I It can be obtained by conventional means of those skilled in the art, and will not be repeated here.

[0047] Step S301, sampling its own load current value, generating its own current load current value I, and broadcasting its own current load c...

Embodiment 3

[0072] This embodiment also provides a power supply module for realizing digital current sharing, which is used to reduce the risks of existing digital current sharing solutions and improve the safety of the power supply system. Figure 5 It is one of the functional block diagrams of the power module of this embodiment, such as Figure 5 Shown: the power module 50 includes:

[0073] The broadcast information receiving unit 501 is configured to receive the current load current value of each power module sent by at least one parallel power module through broadcast; the average current generation unit 502 is configured to receive the current load current value of the at least one parallel power module and its own current load current value to generate the load average current value of all power modules; the output current adjustment unit 503 is used to adjust its own output current according to the load average current value, so that its own output current value is adjusted to th...

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Abstract

The embodiment of the invention provides a digital current equalizing method of power source modules, power source modules and communication equipment. The method comprises the steps of: receiving current load current values of power source modules sent by at least one parallel power source module in a broadcasting manner; according to the received current load current values of the at least one parallel power source module and own current load current value, generating a load average current value of all the power source modules; and adjusting own output current according to the load averagecurrent value so that the own output current value is adjusted to the load average current value. The method adopts the way of broadcasting, each power source module self-controls own load current, all the power source modules are equal and not classified as master modules and slave modules, in case of the fault of a certain power source module, the power source module stops operation automatically, causing no influence to the current system; the method solves the risk problem in the traditional digital current equalizing technology that the fault of a current equalization controller or a main module results in the breakdown of the entire current equalization control.

Description

technical field [0001] The present invention relates to the technical field of power supplies, in particular to a digital current sharing method for a power supply module, a power supply module and communication equipment. Background technique [0002] In the field of communication power supply, it is a very important technology to use multiple power modules in parallel to achieve high power output. The parallel connection of power supply has the advantages of centralized management of power supply, easy expansion, good compatibility, redundant backup, high reliability, and high cost performance. Advantages, and because of its strong advantages, radiate and promote the research, progress and development of the power module parallel technology in the entire power field. Power supply parallel technology has become the core technology of high-power distributed power system, and the core of power supply parallel operation is current sharing technology. Current sharing technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02M7/02H02M3/00H02M7/42H02M5/00H04M19/00
Inventor 李方林
Owner HUAWEI DIGITAL POWER TECH CO LTD
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