The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 22, 2023

Filed:

Feb. 04, 2021
Applicant:

Southeast University, Nanjing, CN;

Inventors:

Zheng Wang, Nanjing, CN;

Yang Xu, Nanjing, CN;

Pengcheng Liu, Nanjing, CN;

Zhixiang Zou, Nanjing, CN;

Ming Cheng, Nanjing, CN;

Assignee:

SOUTHEAST UNIVERSITY, Nanjing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/48 (2007.01); H02M 1/00 (2006.01); H02M 7/5387 (2007.01);
U.S. Cl.
CPC ...
H02M 7/4807 (2013.01); H02M 1/0058 (2021.05); H02M 7/53876 (2021.05);
Abstract

A current fed high-frequency isolated matrix converter and the corresponding modulation and control schemes are provided. The converter includes a current source full-bridge converter, a high-frequency transformer, a matrix converter, and a three-phase filter. An optimized space vector modulation solution is used for controlling the converter, and by comparing magnitudes of three-phase filter capacitor voltages to determine an action sequence of space vectors, switch tubes are turned on at zero voltage. A current source full-bridge circuit adopts a commutation strategy of a secondary clamping, and by calculating a leakage inductive current commutation time, full-bridge switch tubes are turned off at zero current to achieve safe and reliable commutation, and having advantages of a low system loss, a high efficiency, and a high power density.


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