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High-integration three-port power converter

A power converter, three-port technology, applied in the direction of converting DC power input to DC power output, output power conversion device, collector, etc., can solve the problem of narrow application range, low power density, and three-port power converter conversion efficiency. Low and other problems, to achieve the effect of wide application range, high power density, and easy hardware circuit implementation

Active Publication Date: 2021-10-01
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the existing technology, the present invention proposes a highly integrated three-port power converter, which is used to solve the problems of low conversion efficiency, low power density, and narrow application range of traditional three-port power converters, and meets the requirements of highly integrated power conversion Application requirements

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Embodiment Construction

[0018] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0019] It should be noted that the terms "comprising" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to expressly instead of those steps or elements listed, may include other steps or eleme...

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Abstract

The invention discloses a high-integration three-port power converter, belonging to the technical field of power converters. The high-integration three-port power converter comprises three coupling inductors sharing one magnetic core, wherein the left side terminal of the first coupling inductor is connected with the positive electrode of a solar cell array, and the right side terminal of the first coupling inductor is connected with the negative electrode of the solar cell array through a first power tube; the right side terminal of the first coupling inductor is connected with the negative electrode of the solar cell array through a second power tube and a bus end load in sequence; the left side terminal of the second coupling inductor is connected with the positive electrode of a storage battery pack, the right side terminal of the second coupling inductor is connected with the negative electrode of the storage battery pack through a third power tube, and the right side terminal of the second coupling inductor is connected with the negative electrode of the storage battery pack through a fourth power tube and a second filtering and voltage-stabilizing capacitor in sequence; the left side terminal of the third coupling inductor is connected with the negative electrode of the storage battery pack through a second filtering and voltage-stabilizing capacitor; and the right terminal of the third coupling inductor is connected with the positive electrode of the solar cell array through the second power tube and the first coupling inductor in sequence.

Description

technical field [0001] The invention belongs to the technical field of power converters, in particular to a highly integrated three-port power converter. Background technique [0002] Three-port power converters are widely used in aerospace, new energy power generation and other fields. A three-port converter can realize power conversion and energy transfer among the three ports of the power generation unit, the energy storage battery and the power supply bus. By increasing or decreasing the number of converters connected in parallel, it is very easy to realize flexible expansion of power. Moreover, the multiplexing of power devices and magnetic devices significantly improves the power density of the converter. [0003] In the traditional three-port power converter design, in order to ensure lower ripple, a single-stage or multi-stage passive filtering link is usually added at the input and output ends to achieve mutual cancellation of input currents. The converter circui...

Claims

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Application Information

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IPC IPC(8): H02J7/35H02M3/158H01F37/00H01F27/30H02J1/10H02J7/00
CPCH02J7/35H02M3/158H01F37/00H01F27/306H02J1/10H02J7/0068H02J7/0063H02J2300/24H02J2207/20Y02E10/56
Inventor 鲁伟王保平赵春阳陈洪涛张泰峰赵秋山代磊韩娜
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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