Interleaved parallel magnetic-integration bidirectional full-bridge LLC resonant converter

Abstract

The invention provides an interleaved parallel magnetic-integration bidirectional full-bridge LLC resonant converter and relates to the technical field of power and electronic applications. The interleaved magnetic-integration bidirectional full-bridge LLC resonant converter comprises two paths of an interleaved parallel bidirectional full-bridge LLC resonant converter. The first path of the bidirectional full-bridge LLC resonant converter comprises a first primary-side circuit, a first secondary-side circuit, a resonant transformer and a magnetic inductor thereof. The second path of the bidirectional full-bridge LLC resonant converter comprises a second primary-side circuit, a second secondary-side circuit, a resonant transformer and a magnetic inductor thereof. The primary-side circuit and the secondary-side circuit of each path of the bidirectional full-bridge LLC resonant converter are respectively in the form of a full-bridge LLC resonant circuit and are used for realizing the bidirectional energy flow. The two resonant transformers, the magnetic inductors thereof and four resonant inductors of the two paths of the interleaved parallel bidirectional full-bridge LLC resonant converter are magnetically integrated through integrated magnetic pieces. According to the technical scheme of the invention, the large-power, high-transformation-ratio, small-volume, bidirectional and high-efficiency operation of the electric energy is realized.

Description

technical field

[0001] The invention relates to the technical field of power electronics applications, in particular to an interleaved parallel magnetically integrated bidirectional full-bridge LLC resonant converter. Background technique

[0002] In recent years, switching power supplies that provide electrical energy for various electrical equipment are developing in the direction of low voltage, high current, small size, light weight, high efficiency, thinness and integration, including for the central processing unit (Central Processing Unit) of computers. , CPU) and digital signal processors (Digital Signal Processing, DSP) and other high-precision, high-speed microprocessors to provide precision power supply voltage adjustment modules, as well as widely used in electric vehicles, hybrid vehicles, uninterruptible power supplies that have emerged in recent years , power quality regulation power supply, aviation power supply, new energy power generation and superconductin...

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