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Current control method and system for interleaved parallel topology

A current control and parallel technology, applied in the field of electric power, can solve the problems of current phase difference, uncontrollable current sharing, etc.

Active Publication Date: 2020-11-27
KEHUA DATA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, an embodiment of the present invention provides a current control method and system of an interleaved parallel topology to solve the problem that in the interleaved parallel topology, due to the phase difference between the collected parallel branch currents, it is impossible to control and realize current sharing.

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  • Current control method and system for interleaved parallel topology
  • Current control method and system for interleaved parallel topology
  • Current control method and system for interleaved parallel topology

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Embodiment Construction

[0022] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0023] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0024] The first aspect of the embodiments of the present application provides a current control method for an interleaved parallel topology, referring to figure 1 As shown, the method may include the following steps:

[0025] Step S101, acquiring phase information of...

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Abstract

The invention is suitable for the technical field of electric power, and provides a current control method and system for an interleaved parallel topology. The method comprises the following steps: obtaining the phase information of each parallel branch current in the interleaved parallel topology, and determining the phase difference of each parallel branch current according to the phase information; determining a sampling time difference of each parallel branch according to the phase difference; and acquiring and controlling the current of each parallel branch based on the sampling time difference. According to the invention, the phases of the collected currents of the parallel branches are the same, so that the currents of the parallel branches are controlled according to the collectedcurrent values, and current sharing is realized.

Description

technical field [0001] The invention belongs to the field of electric power technology, and in particular relates to a current control method and system of an interleaved parallel topology. Background technique [0002] The interleaved parallel topology is widely used in high-power power supply systems because of its low current ripple, easy electromagnetic interference design, and fast dynamic response. [0003] However, due to the inconsistency of component parameters in the interleaved parallel topology, the output current of each parallel branch cannot be evenly distributed, which will not only reduce the reliability and stability of the power system, but even shorten the service life of the power supply, causing serious consequences , therefore, it is very necessary to collect the current of each parallel branch for control and realize the current sharing of each parallel branch. [0004] However, in the interleaved parallel topology, there is a phase difference betwee...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/088
CPCH02M1/088H02M1/0009
Inventor 卢雄伟许永志陈海飞林炎坤
Owner KEHUA DATA CO LTD