Next Article in Journal
Sky Imager-Based Forecast of Solar Irradiance Using Machine Learning
Next Article in Special Issue
Requirements for Validation of Dynamic Wind Turbine Models: An International Grid Code Review
Previous Article in Journal
Temporal Auditory Coding Features for Causal Speech Enhancement
Previous Article in Special Issue
Analysis of the Implementation of the Primary and/or Inertial Frequency Control in Variable Speed Wind Turbines in an Isolated Power System with High Renewable Penetration. Case Study: El Hierro Power System
Open AccessArticle

A DC-DC Center-Tapped Resonant Dual-Active Bridge with Two Modulation Techniques

1
Key Laboratory of Control of Power Transmission and Conversion of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
2
State Grid Changzhou Power Supply Branch Company of Jiangsu Power Electronic Co., Ltd., Changzhou 213000, China
*
Author to whom correspondence should be addressed.
Electronics 2020, 9(10), 1699; https://doi.org/10.3390/electronics9101699
Received: 24 September 2020 / Revised: 9 October 2020 / Accepted: 12 October 2020 / Published: 16 October 2020
Power converters with higher efficiency in a wide load range are important for reducing the overall energy consumption of renewable energy generation systems. A center-tapped LC series resonant dual-active bridge (LC-DAB) converter for DC-DC conversion is proposed in this paper. The proposed converter utilizes a center-tapped bridge to block reverse current and eliminate back flow power to reduce conduction losses. Two modulation methods for the proposed topology (i.e., fixed frequency modulation (FFM), and variable frequency modulation (VFM)) are proposed and analyzed. Both modulation methods can realize soft switch over the entire load range to reduce switching losses. In addition, the proposed modulation techniques guarantee soft switching for all devices and synchronous rectifier is realized by the center-tapped bridge to further reduce the conduction losses. Furthermore, a comprehensive comparison in terms of conduction losses and switching losses has been carried out to highlight the superiority of the proposed converter over the existing LC resonant converters. Finally, simulated and experimental results for a 1.5 kW prototype are presented to validate the theoretical analysis and performance of the proposed converter. View Full-Text
Keywords: LC series resonant; dual-active bridge; fixed frequency modulation; variable frequency modulation; border conduction mode LC series resonant; dual-active bridge; fixed frequency modulation; variable frequency modulation; border conduction mode
Show Figures

Figure 1

MDPI and ACS Style

Chen, G.; Xu, N.; Yuan, L.; Humayun, M.; Khan, M.M. A DC-DC Center-Tapped Resonant Dual-Active Bridge with Two Modulation Techniques. Electronics 2020, 9, 1699.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop