Design Methodology of Bidirectional CLLC Resonant Converter for High-Frequency Isolation of DC Distribution Systems

2013 ◽  
Vol 28 (4) ◽  
pp. 1741-1755 ◽  
Author(s):  
Jee-Hoon Jung ◽  
Ho-Sung Kim ◽  
Myung-Hyo Ryu ◽  
Ju-Won Baek
Keyword(s):  
High Frequency ◽  
Design Methodology ◽  
Distribution Systems ◽  
Resonant Converter ◽  
Dc Distribution

scholarly journals Isolated AC/AC Converter with LLC Resonant Converter High Frequency Link and Four-Quadrant Switches in the Output Stage

2020 ◽  
Author(s):  
Leonardo Freire Pacheco ◽  
Ivo Barbi ◽  
Kaio Cesar Maciel Nascimento
Keyword(s):  
Power Distribution ◽  
High Frequency ◽  
Distribution Systems ◽  
Soft Switching ◽  
Switching Frequency ◽  
Resonant Converter ◽  
Output Stage ◽  
Llc Resonant Converter ◽  
Four Quadrant ◽  
High Frequency Ac

An AC-AC converter with high-frequency link employing LLC resonant converter operating in the vicinity of the resonance frequency is studied, in which the output stage is unique and formed by a high-frequency AC-AC converter employing four quadrant switches. The topology, its operation and the modulation strategy are presented. The high-frequency stage switches located on the primary side of the transformer operate with soft switching of the ZVS type, while the four quadrant switches that form the output stage operate with soft switching of the ZCS type. Experimental data on a 1.5 kW experimental prototype that was designed, built and tested in the laboratory, with 220 VRMS input, 220 VRMS output and 40 kHz switching frequency are given in the paper. The studied converter can be considered a candidate for the building block of medium voltage solid-state transformers (SST) for power distribution systems.<br>

scholarly journals Transient High-Frequency Impedance Comparison-Based Protection for Flexible DC Distribution Systems

2020 ◽  
Vol 11 (1) ◽  
pp. 323-333 ◽  
Author(s):  
Ke Jia ◽  
Zhenwen Xuan ◽  
Tao Feng ◽  
Congbo Wang ◽  
Tianshu Bi ◽  
...  
Keyword(s):  
High Frequency ◽  
Distribution Systems ◽  
Dc Distribution

scholarly journals Isolated AC/AC Converter with LLC Resonant Converter High Frequency Link and Four-Quadrant Switches in the Output Stage

2020 ◽  
Author(s):  
Leonardo Freire Pacheco ◽  
Ivo Barbi ◽  
Kaio Cesar Maciel Nascimento
Keyword(s):  
Power Distribution ◽  
High Frequency ◽  
Distribution Systems ◽  
Soft Switching ◽  
Switching Frequency ◽  
Resonant Converter ◽  
Output Stage ◽  
Llc Resonant Converter ◽  
Four Quadrant ◽  
High Frequency Ac

An AC-AC converter with high-frequency link employing LLC resonant converter operating in the vicinity of the resonance frequency is studied, in which the output stage is unique and formed by a high-frequency AC-AC converter employing four quadrant switches. The topology, its operation and the modulation strategy are presented. The high-frequency stage switches located on the primary side of the transformer operate with soft switching of the ZVS type, while the four quadrant switches that form the output stage operate with soft switching of the ZCS type. Experimental data on a 1.5 kW experimental prototype that was designed, built and tested in the laboratory, with 220 VRMS input, 220 VRMS output and 40 kHz switching frequency are given in the paper. The studied converter can be considered a candidate for the building block of medium voltage solid-state transformers (SST) for power distribution systems.<br>

Improved Litz wire manufacture process using resonant power converter-based induction heating

2017 ◽  
Vol 36 (2) ◽  
pp. 476-482 ◽  
Author(s):  
Alejandro Naval ◽  
Hector Sarnago ◽  
Ignacio Lope ◽  
Oscar Lucia ◽  
José M. Burdio
Keyword(s):  
Induction Heating ◽  
Power Supply ◽  
Manufacturing Process ◽  
High Frequency ◽  
High Performance ◽  
Design Methodology ◽  
Power Converter ◽  
Resonant Converter ◽  
Content Type ◽  
Manufacture Process

Purpose Litz wire manufacturing using mechanical procedures presents several limitations regarding reliability and repeatability, especially when a small strand diameter is used. This paper aims to propose a power supply design for Litz wire manufacturing using a high-frequency high-performance resonant converter. Design/methodology/approach This paper proposes the design of a resonant power supply for induction heating specially designed to tackle with the challenge of heating Litz wires quickly. Findings The proposed converter enables the removal of the isolating coating from the Litz wire through induction heating, improving significantly the manufacturing process. Originality/value The proposed converter improves significantly the manufacturing process of Litz wire through induction heating, with economic and reliability benefits.

Full-current-based directional pilot protection for VSC-DC distribution systems

2019 ◽  
Vol 13 (16) ◽  
pp. 3713-3724 ◽  
Author(s):  
Meng Li ◽  
Ke Jia ◽  
Tianshu Bi ◽  
Congbo Wang ◽  
Rui Zhu ◽  
...  
Keyword(s):  
Distribution Systems ◽  
Dc Distribution ◽  
Pilot Protection
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