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Three-phase single-stage isolation bidirectional AC-DC converter topological structure and control method thereof

A topology and converter technology, applied in the field of three-phase single-stage isolated bidirectional AC-DC converter topology and its control, can solve the problems of high cost and low efficiency of the whole machine, and achieve high power density, low cost, high performance effect

Pending Publication Date: 2022-05-06
南京君海数能科技有限公司
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Problems solved by technology

[0007] The present invention provides a three-phase single-stage isolated bidirectional AC-DC converter topology and its control method, which are used to solve the problems of high cost and low overall efficiency of the bidirectional AC-DC power converter with medium and high frequency isolation in the prior art Defects, realize cost-effective and high power density three-phase isolated bidirectional AC-DC power conversion

Method used

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  • Three-phase single-stage isolation bidirectional AC-DC converter topological structure and control method thereof
  • Three-phase single-stage isolation bidirectional AC-DC converter topological structure and control method thereof
  • Three-phase single-stage isolation bidirectional AC-DC converter topological structure and control method thereof

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] Combine below Figure 1-Figure 7The topological structure and control method of the three-phase single-stage isolated bidirectional AC-DC converter of the present invention are described.

[0039] Please refer to figure 1 and figure 2 , in the embodiment of the present invention, the topology of the three-phase single-stage isolated bidirectional AC-DC converter includes:

[0040]...

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Abstract

The invention relates to the technical field of power electronic converters, and provides a three-phase single-stage isolation bidirectional AC-DC converter topological structure and a control method thereof. The three-phase single-stage isolation bidirectional AC-DC converter topological structure comprises a three-phase AC side filter and a three-phase AC side converter, and the three-phase AC side converter is composed of three AC side H half bridges; a high-frequency transformer; a DC-side converter; and a DC-side filter. According to the three-phase single-stage isolation bidirectional AC-DC converter topological structure provided by the invention, bidirectional AC-DC power conversion with low cost, high power density and high performance is realized.

Description

technical field [0001] The invention relates to the technical field of power electronic converters, in particular to a topology structure of a three-phase single-stage isolated bidirectional AC-DC converter and a control method thereof. Background technique [0002] With the development of energy storage technology, portable consumer applications based on energy storage components such as lithium batteries and supercapacitors have a high demand for AC-DC (alternating current-direct current) power with high cost performance, high power density, electrical isolation, and bidirectional power conversion. Converters create a huge demand. [0003] At present, for three-phase AC-DC power conversion applications, typical bidirectional isolation AC-DC power converters include two technical routes of power frequency isolation and high frequency isolation. Among them, the use of high-frequency isolation conversion technology to realize three-phase isolation bidirectional AC-DC convers...

Claims

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Application Information

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IPC IPC(8): H02M7/797H02M1/14H02M1/12
CPCH02M7/797H02M1/14H02M1/12
Inventor 孙驰何娜
Owner 南京君海数能科技有限公司
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