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| Presentation | 2021-01-25 15:45 High-Order Harmonics-involved Frequency Domain Analysis on a Current-fed Snubber-less ZCS Step-Up DC-DC Converter Ryusei Miyazaki, Tomokazu Mishima (Kobe Univ.)  EE2020-36 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, the installation of smart grids has been actively promoted from the viewpoint of stabilizing power supply and highly efficient usage of green energy, whereby fuel cells play an important role in the power processing. The authors have proposed a current-fed boost converter as a high-frequency link DC-DC converter (DC-X) that is applied to the front stage of a grid-connected inverter in a fuel cell interface. Since the proposed dc-dc converter is based on the principle of quasi-resonance for soft switching but non-load resonant manner, the derivation of the output voltage conversion ratio by AC analysis taking only the fundamental component into consideration causes a large error between the theoretical and computer-aided calculation values, needless to say the measured results. In order to obtain more precise analysis of the proposed converter, a time-domain analysis is newly employed for analyzing the high-order harmonics in the stepwise voltage of the quasi-resonant high frequency inverter. The effectiveness of the analytical method is verified by comparing with the simulation results, after which the measured results obtained from a $rm{1,MHz}$-$rm{55,W}$ prototype with GaN-HEMT are demonstrated for consolidating the analytical approach. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | current-fed step-up dc-dc converter / DC-X / fuel cell / high-frequency planar-transformer(HFPT) / magnetically coupled inductors / time-domain analysis / zero current soft-switching(ZCS) / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 340, EE2020-36, pp. 69-74, Jan. 2021. | |
| Paper # | EE2020-36 | |
| Date of Issue | 2021-01-18 (EE) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EE2020-36 |
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| Conference Information | |
| Committee | EE |
| Conference Date | 2021-01-25 - 2021-01-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online (Zoom) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | DC/DC converter, New circuit for power conversion and control, others |
| Paper Information | |
| Registration To | EE |
| Conference Code | 2021-01-EE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High-Order Harmonics-involved Frequency Domain Analysis on a Current-fed Snubber-less ZCS Step-Up DC-DC Converter |
| Sub Title (in English) | |
| Keyword(1) | current-fed step-up dc-dc converter |
| Keyword(2) | DC-X |
| Keyword(3) | fuel cell |
| Keyword(4) | high-frequency planar-transformer(HFPT) |
| Keyword(5) | magnetically coupled inductors |
| Keyword(6) | time-domain analysis |
| Keyword(7) | zero current soft-switching(ZCS) |
| Keyword(8) | |
| 1st Author's Name | Ryusei Miyazaki |
| 1st Author's Affiliation | Kobe University (Kobe Univ.) |
| 2nd Author's Name | Tomokazu Mishima |
| 2nd Author's Affiliation | Kobe University (Kobe Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-01-25 15:45:00 |
| Presentation Time | 25 minutes |
| Registration for | EE |
| Paper # | EE2020-36 |
| Volume (vol) | vol.120 |
| Number (no) | no.340 |
| Page | pp.69-74 |
| #Pages | 6 |
| Date of Issue | 2021-01-18 (EE) |
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