A Family of Soft-Switching DC-DC Converters With Two Degrees of Freedom

被引：5

作者：

Mohammadi, Mohammad ^{[1
]}

Dehbashi, Arsalan ^{[1
]}

Gharehpetian, Gevork B. ^{[1
]}

Khoshsaadat, Alireza ^{[2
]}

Mattavelli, Paolo ^{[3
]}

机构：

[1] Amirkabir Univ Technol, Elect Engn Dept, Tehran 1591634311, Iran

[2] Ayatollah Boroujerdi Univ, Dept Elect Engn, Boroujerd 6919969737, Iran

[3] Univ Padua, Dept Management & Engn DTG, I-36100 Vicenza, Italy

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2021年 / 68卷 / 10期

关键词：

Capacitors; Inductors; DC-DC power converters; Zero voltage switching; Soft switching; Switches; Equivalent circuits; DC-DC converter; interleaved converter; reverse recovery; soft switching; two degrees of freedom (2DoF);

D O I：

10.1109/TIE.2020.3021639

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Switching losses including reverse recovery losses, have a significant impact on total losses of DC-DC converters especially in high voltage applications. This article introduces a new family of DC-DC converters with two degrees of freedom, which can handle the mentioned issue. The proposed family of DC-DC converters contains a bidirectional and a unidirectional cell, and provides an additional control parameter. This parameter can be adjusted so that there are soft switching conditions for all the switches of the converter within the entire range of loading. In addition, properly tuning the new parameter can decrease the circulating current and consequently decrease the conduction losses considerably. Besides, the unidirectional cell contributes to power transfer, especially under full load condition. Moreover, the filter capacitor is one fourth in comparison with the conventional dc-dc converters. The proposed converter is modeled and its operation modes are studied. Also, in order to verify the findings, a 500 W prototype with a frequency of 100 kHz is implemented, and the results are compared.

引用

页码：9398 / 9409

页数：12

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