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https://hdl.handle.net/20.500.14094/90004790

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メタデータID
90004790
アクセス権
open access
出版タイプ
Accepted Manuscript
タイトル
A Sensitivity-Improved PFM LLC Resonant Full-Bridge DC-DC Converter With LC Antiresonant Circuitry
その他のタイトル
A Sensitivity-Improved PFM LLC Resonant Full-Bridge DC-DC Converter with LC Anti-Resonant Circuitry
著者
Mishima, Tomokazu ; Mizutani, Hiroto ; Nakaoka, Mutsuo
著者ID
A1733
研究者ID
1000040370019
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=c3bfabda904cb619520e17560c007669
著者名
Mishima, Tomokazu
三島, 智和
ミシマ, トモカズ
所属機関名
海事科学研究科
著者名
Mizutani, Hiroto
著者名
Nakaoka, Mutsuo
収録物名
IEEE Transactions on Power Electronics
巻(号)
32(1)
ページ
310-324
出版者
Institute of Electrical and Electronics Engineers (IEEE)
刊行日
2017-01
公開日
2018-04-16
抄録
An LLC resonant circuit-based full-bridge dc-dc converter with an LC anti-resonant tank for improving the performance of pulse-frequency-modulation (PFM) is proposed in this paper. The proposed resonant dc-dc converter, named as LLC-LC converter can extend a voltage regulation area below the unity gain with a smaller frequency variation of PFM by the effect of the anti-resonant tank. This advantageous property contributes for protecting over-current in the case of the short-circuit load condition as well as the start-up interval in the designed band of switching frequency. The circuit topology and operating principle of the proposed converter is described, after which the design procedure of the operating frequency and circuit parameters is presented. The performances on the soft switching and the steady-state PFM characteristics of the LLC-LC converter are evaluated under the open-loop control in experiment of a 2.5kW prototype, and its actual efficiency is compared with a LLC converter prototype. For revealing the effectiveness of the LLC-LC resonant circuitry, voltages and currents of the series and anti-resonant tanks are analyzed respectively with state-plane trajectories based on calculation and experiment, whereby the power and energy of each resonant tank are demonstrated. Finally, the feasibility of the proposed converter is evaluated from the practical point of view.
キーワード
Antiresonant tank
buck and boost voltage regulations
LLC resonant converter
LLC-LC resonant converter
overcurrent protection (OCP)
pulse frequency modulation
zero-current soft switching (ZCS)
zero-voltage soft switching (ZVS)
カテゴリ
海事科学研究科
学術雑誌論文
権利
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.