検索結果 375件中 1-20 を表示

  • DIGITAL LEARNING CONTROLLER DESIGN FOR THE BOOSTER RING AC POWER SUPPLIES IN TAIWAN PHOTON SOURCE

    CHIEN YUANCHEN , LIU CHENYAO , WONG YONGSENG , LIU KUOBIN , WANG BAOSHENG

    ICIC express letters. Part B, Applications : an international journal of research and surveys 8(5), 827-834, 2017-05

  • インバータ電源で電力供給する自立マイクログリッドにおけるインバータ電源の制御方式

    直井 伸也 , 荒井 純一 , 野呂 康宏

    … These power sources require inverters to connect to ac network. … There is a possibility that sub-network, called as microgrid, containing inverter power sources will be disconnected from the utility network and operated as standalone mode. … This paper focuses on a standalone microgrid supplied by inverter power sources without synchronous generator, and proposes new inverter control in the microgrid. …

    電気学会論文誌. B 137(6), 426-433, 2017

    DOI

  • 2ステージ方式単相AC/DC変換器の直流側コンデンサに流れるスイッチングリプル電流の低減制御手法

    金子 恭大 , 和田 圭二 , 徳舛 彰

    … The reduction effect of the switching ripple current is confirmed by analysis and the results of an experiment in which a DC-DC converter with power factor correction was used under the conditions of a source voltage 100V and an output power 1 kW.</p> …

    電気学会論文誌. D, 産業応用部門誌 137(3), 220-229, 2017

    DOI

  • Development and fundamental characteristics of co-axial MHD energy conversion device

    TAKANA Hidemasa , TANIDA Akira

    … The static and dynamic characteristics of the device have experimentally investigated with AC servo-motor as a driving source. … The experimental results show that the rotational torque can be controlled with electric power extraction by applied magnetic field and external load resistance. …

    Mechanical Engineering Journal 4(1), 16-00500-16-00500, 2017

    DOI

  • 電力系統用新方式自励交直変換器の技術動向 : モジュラーマルチレベル変換器(MMC)を中心として

    電力系統用新方式自励交直変換器調査専門委員会

    電気学会技術報告 (1374), 1-59,裏表紙, 2016-04

  • 高周波IH金属熱処理応用シングルステージAC-ACコンバータの検討

    坂本 修一 , 三島 智和 , 井出 千明

    … paper presents a new single-stage utility frequency ac-high frequency ac resonant power converter for high frequency induction heating applications.The newly-proposed ac-ac converter features a boost converter and full bridge resonant inverter integrated circuit with a source voltage sensorless control system.The experimental results of a 3.0kW-40kHz prototype are demonstrated on zero voltage soft switching(ZVS) …

    パワーエレクトロニクス学会誌 42(0), 67-73, 2016

    DOI

  • コモンモード電流を考慮した空心偏平型経皮電力伝送システムの効率測定―1 MHzの理論値と実測値の比較―

    加我 正 , 柴 建次

    … Previously, an AC-AC energy transmission efficiency of TETS has been measured. … However, a common-mode current that flows into the ground through the AC source and measuring equipment prevents an accurate efficiency measurement. … In this paper, to reduce common-mode current, a common-mode choke coil (CMCC), uninterruptible power supply (UPS), and differential probes were used to measure the efficiency of TETS. …

    生体医工学 54Annual(27PM-Abstract), S189-S189, 2016

    DOI

  • Fundamental Characteristics of Arc Extinction at DC Low Current Interruption with High Voltage (<500V)

    SAWA Koichiro , TSURUOKA Masatoshi , MORII Makito

    … <p>Various DC power supply systems such as photovoltaic power generation, fuel cell and others have been gradually spreading, so that DC power distribution systems are expected as one of energy-saving technologies at houses and business-related buildings as well as data centers and factories. … Under such circumstances switches for electric appliances are requested to interrupt DC current safely in DC power systems (DC 300-400V). …

    IEICE Transactions on Electronics E99.C(9), 1016-1022, 2016

    DOI

  • 小規模事務所建物における空調設備の稼働実態に関する基礎的研究

    天野 雄一朗 , 堀岡 建吾 , 安岡 稔弘 , 田島 昌樹

    … It is essential to have drastic overall power savings, including energy saving during peak usage times, continuous less environment impact. … Another route to energy conservation is the strict temperature control of Air Conditioning (AC) units in buildings. …

    日本建築学会環境系論文集 81(729), 997-1005, 2016

    DOI

  • 高周波プラズマ電子源を用いたホールスラスタの作動特性

    渡邊 裕樹 , 市村 正範 , 竹ヶ原 春貴

    … Radio frequency (RF) plasma cathodes have been researched and developed as an electron source to remove the drawbacks with dispenser hollow cathodes from ion and Hall thrusters. … For the RF plasma cathode, an anode current of 3.5A is obtained at an RF power of 140W, a xenon mass flow rate of 0.2mg/s. … However, because of the high RF power consumption, the total efficiency of the RF plasma cathode is lower than that of the hollow cathode at anode mass flow rates of 2.0mg/s and 2.9mg/s. …

    日本航空宇宙学会論文集 64(3), 171-181, 2016

    J-STAGE DOI

  • An Analytical Model of AC-DC Charge Pump Voltage Multipliers

    TANZAWA Toru

    … This paper proposes an analytical, closed-form AC-DC voltage multiplier model and investigates the dependency of output current and input power on circuit and device parameters. … In addition, design optimizations and the impact of AC power source impedance on output power are also investigated. …

    IEICE Transactions on Electronics E99.C(1), 108-118, 2016

    J-STAGE DOI

  • ICT活用教育のための「学べる」情報ネットワーク演習環境の改善

    佐藤 亮一 , 畠山 森魚 , 佐藤 雄二 , 早川 潤 , 平賀 保博 , 高橋 洋子 , 下保 敏和 , 平尾 篤利 , 鈴木 賢治 , Sato Ryoichi , Hatakeyama Morio , Sato Yuji , Hayakawa Jun , Hiraga Yasuhiro , Takahashi Yoko , Kaho Toshikazu , Hirao Atsutoshi , Suzuki Kenji

    … The rooms are equipped with large number of information receptacles connecting to the Internet and power receptacles connecting to AC 100V electric source, so more than 200 students can simultaneously do the fundamental information network practice or information security practice. …

    新潟大学教育学部研究紀要 自然科学編 8(1), 67-75, 2015-10

    機関リポジトリ

  • Low-power wireless on-chip microparticle manipulation system

    Dei Yoshiaki , Kishiwada Yasushi , Yamane Rie , Inoue Taisuke , Matsuoka Toshimasa

    … In order to realize an easy-to-use on-chip microparticle manipulation system, a chip that can manipulate microparticles by pulse-driven dielectrophoresis (DEP) in a solution with wireless power reception function was designed. … Considering both of the DEP operation and power consumption of the chip, the internal supply voltage and the DEP driving signal frequency for CMOS digital circuits including the ring oscillator were assigned to about 0.5 V and about 1 MHz, respectively. …

    Jpn. J. Appl. Phys. 54(4S), 04DE10, 2015-03-25

    応用物理学会

  • 異種吸着材を用いた二段式吸着ヒートポンプのサイクル特性評価

    江﨑 丈裕 , 小林 敬幸

    本研究では,吸着ヒートポンプの低温駆動特性に特化した二段式システムについて検討した.一段目にゼオライト吸着材FAM-Z05,二段目に活性炭吸着材を用いることで,50 <sup>0</sup>C 以下の低温廃熱でも 15 <sup>0</sup>C の冷熱生成可能なシステムを提案する.吸着材と熱交換器を一体とした吸着コアを用いた実験検討により,本システ …

    日本冷凍空調学会論文集 32(4), 427-433, 2015

    DOI

  • 適応フィルタによる電気生理的信号中の交流雑音除去

    戸田 尚宏

    … Especially, in the case of electroretinogram (ERG), the periodic interference included in the signal presents a significant hindrance, because the electric potential of the response is minute and includes the fundamental frequency of the AC power source and its several harmonic frequencies. …

    生体医工学 53(Supplement), S153_03-S153_03, 2015

    DOI

  • 単相AC-AC電流形コンバータの改良回路

    根葉 保彦 , 松本 洋和 , 川崎 裕太

    … This paper proposes a single-phase AC-AC current source converter with improved current waveforms. … The main circuit of the converter is a three-phase bridge circuit that contains a capacitor for the management of instantaneous power with twice the source frequency. … Two types of pulse width modulated (PWM) switching patterns are employed to regulate the output power and to obtain the smoothing DC current. …

    電気学会論文誌D(産業応用部門誌) 135(12), 1237-1238, 2015

    J-STAGE DOI

  • ロスレススナバを組み入れたインターリーブ式ソフトスイッチングPFC回路

    安東 至 , 阿部 晃大 , 中村 友陽 [他] , 荒木 雄志 , 大石 潔

    … This paper describes a soft-switching interleaved power factor correction (PFC) converter with a lossless snubber. … AC/DC converters require a unity input power factor characteristic with highly efficient operation to prevent the inflow of harmonic current to the power source. …

    電気学会論文誌D(産業応用部門誌) 135(12), 1217-1224, 2015

    J-STAGE DOI

  • 異種吸着材を用いた二段式吸着ヒートポンプのサイクル特性評価

    江﨑 丈裕 , 小林 敬幸

    <tt>本研究では,吸着ヒートポンプの低温駆動特性に特化した二段式システムについて検討した.一段目にゼオライト吸着材</tt>FAM-Z05<tt>,二段目に活性炭吸着材を用いることで,</tt>50 <sup>0</sup>C <tt>以下の低温廃熱でも </tt>15 <sup>0< …

    日本冷凍空調学会論文集 advpub(0), 427-433, 2015

    J-STAGE DOI

  • A New Distributed MPPT Technique using Buck-only MICs Linked with Controlled String Current

    Matsui Mikihiko , Sai Toru , Yu Byung-Gyu [他] , Sun Xiang-Dong

    … A novel idea to realize the distributed maximum power point tracking (DMPPT) control of a photovoltaic system interfaced with an AC grid is proposed. … However, those studies focused on working together with a voltage source inverter (VSI) in a constant DC voltage mode. … In contrast to past works, the proposed system uses controlled string current with a current source inverter (CSI) to link MICs. …

    IEEJ Journal of Industry Applications 4(6), 674-680, 2015

    J-STAGE DOI

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