研究者詳細 - 平木　英治

論文 - 平木　英治

分割表示 309 件中 141 - 160 件目／全件表示 >>

Loss Evaluation of an AC-AC Direct Converter with a New GaN HEMT SPICE Model

Masayuki Okamoto, Genki Toyoda, Eiji Hiraki, Toshihiko Tanaka, Tamotsu Hashizume, Tetsu Kachi

2011 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) 1795 - 1800 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

Wide-band-gap semiconductors, such as gallium nitride (GaN) and silicon carbide (SiC), are expected to be used as materials for new switching devices with low loss and high switching speed. The authors have recently developed a GaN-based high-electron-mobility-transistor (HEMT) for application to power electronics. In this paper we present models of a GaN-based transistor and Schottky barrier diode (SBD) for a simulation program with integrated circuit emphasis (SPICE). The results of the SPICE simulation show that the static and dynamic characteristics of GaN- based devices are precisely simulated by the SPICE models. The application of a GaN-based device to a single-phase AC-AC direct converter results in a reduction of power loss of over 30% compared with a silicon-based one.

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直流電圧一定制御を用いた単相三線式配電用電流バランサの制御法

馬場雄介, 福井博一, 岡本昌幸, 平木英治, 田中俊彦

パワーエレクトロニクス学会誌 36 ( 36 ) 168 - 168 2011年

非接触給電用高周波電力変換回路のシミュレーション評価

河野真吾, 岡本昌幸, 平木英治, 田中俊彦

パワーエレクトロニクス学会誌 36 ( 36 ) 187 - 187 2011年

直列抵抗を模擬可能な大容量キャパシタシミュレータ

田中敦士, 岡本昌幸, 平木英治, 田中俊彦

パワーエレクトロニクス学会誌 36 ( 36 ) 190 - 190 2011年

A Half-Bridge Inverter Based Current Balancer with the Reduced DC Capacitors in Single-Phase Three-Wire Distribution Feeders

Yusuke Baba, Masayuki Okamoto, Eiji Hiraki, Toshihiko Tanaka

2011 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) 4233 - 4239 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

This paper proposes a half-bridge inverter based current balancer in single-phase three-wire distribution systems with the reduced dc capacitors. The proposed current balancer can use a 6-in-1 IGBT module. Two legs perform a half-bridge inverter based current balancer, which compensates the reactive and unbalanced active components on the source-side. The third-leg performs a power de-coupler with a dc-capacitor voltage balancer. This power de-coupler sinks the power fluctuation, which flows into the dc capacitors, caused by the unbalanced conditions of two half-bridge inverters. Thus the capacity of the dc capacitors of the half-bridge inverter based current balancer can be dramatically reduced as compared to those of the previously proposed current balancer. The basic principle of the proposed half-bridge inverter based current balancer with the reduced dc capacitors is discussed in detail, and then confirmed by digital computer simulation using PSIM software. A prototype experimental model is constructed and tested. Experimental results demonstrate that the balanced source currents are obtained on the secondary-side of the pole-mounted distribution transformer, reducing the capacity of the dc capacitors of the half-bridge inverter based current balancer.

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立体駐車場非接触給電システム用周波リンクAC-ACコンバータ

河野真吾, 岡本昌幸, 平木英治, 田中俊彦

信学技報, IEICE Technical Report 2011 ( 305(EE2011 24-30) ) 7 - 12 2011年

記述言語：日本語出版者・発行元：一般社団法人電子情報通信学会

近年のEVやPHVの普及に伴い,立体駐車場での充電が必要となってきた.立体駐車場では,車両の乗ったパレットが移動を行うため,立体駐車場ビル本体からパレットを介して車両を充電することになる.本稿では,ビル本体に設置された電源系統からパレットヘ200V/60(50)Hzの商用交流を非接触で供給する高周波リンクAC-ACコンパータを提案し,実験とシミュレーションにより有用性を明らかにする.

学界情報国際会議レポート：The 36th Annual Conference of the IEEE Industrial Electronics Society (IECON2010) November 7 - 10, 2010, Glendale, USA

平木英治

電気学会論文誌. D, 産業応用部門誌 131 ( 3 ) NL3_4 2011年

ＩＨクッキングヒータ用チャージブースト型２出力フルブリッジインバータの実証評価

銭谷紳, 岡本昌幸, 平木英治, 田中俊彦, 定方秀樹, 藤田篤志, 中岡睦雄

パワーエレクトロニクス学会誌 36 ( 36 ) 103 - 109 2011年

記述言語：日本語出版者・発行元：パワーエレクトロニクス学会

In this paper, a multi output high frequency soft switching inverter topology is presented for home use IH cooking appliances. The proposed inverter system is comprised of simple power circuitry and unique control scheme. The detailed analysis shows that the proposed inverter has low harmonic distortion, low switching losses and wide output powerrange. A detailed PWM procedure is illustrated as well. Through simulation and experimental results, the proposed IH system is verified.

DOI： 10.5416/jipe.36.103

電気自動車用スマートチャージャ

田中秀典, 関谷司, 岡本昌幸, 平木英治, 田中俊彦

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 62nd 2011年

マルチレベルインバータを用いた無効電力補償装置

伊藤北斗, 岡本昌幸, 平木英治, 田中俊彦

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 62nd 2011年

高周波ソフトスイッチングハーフブリッジインバータにおける寄生インダクタンスを考慮した動作解析

松井光生, 岡本昌幸, 平木英治, 田中俊彦

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 62nd 2011年

高い降圧比を有するインダクタ結合形DC-DCコンバータの損失分析

渡辺潤, 岡本昌幸, 平木英治, 田中俊彦

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 62nd 2011年

A half-bridge inverter based active power quality compensator with a DC voltage balancer for electrified railways

Tint Soe Win, Yusuke Baba, Masayuki Okamoto, Eiji Hiraki, Toshihiko Tanaka

Proceedings of the International Conference on Power Electronics and Drive Systems 185 - 190 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

This paper proposes a half-bridge inverter based Active Power Quality Compensator (APQC) with a DC voltage balancer for electrified railways. The APQC is composed of three-leg structured power devices with two common DC capacitors. The first two legs perform as two half-bridge inverters to generate compensation currents and the third-leg is used for DC voltage balancer. The first-leg is connected to β-phase and the second-leg is connected to α-phase. Two DC capacitors are connected in series and midpoint is grounded. These two half-bridge inverters exchange and balance active power for two feeders through two common DC capacitors and compensate reactive and harmonic components of the distorted load currents. The third-leg controls two common DC capacitors to balance voltage level of each other. Using proposed APQC, the primary side of Scott transformer attains balanced and sinusoidal source currents. The principle and control algorithm of proposed a half-bridge inverter based APQC is discussed in detail. The proposed APQC is confirmed by both the PSIM computer simulation software and prototype experiment system. Simulation results show that the proposed APQC can achieve balanced and sinusoidal source currents in secondary side of Scott transformer. © 2011 IEEE.

DOI： 10.1109/PEDS.2011.6147244

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Control strategies of active power line conditioners in single-phase circuits

Toshihiko Tanaka, Masayuki Okamoto, Eiji Hiraki

8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia 1813 - 1820 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

This paper deals with two control strategies for the active power line conditioners in single-phase circuits. The first one is a constant dc capacitor voltage control based strategy, which is commonly used in the active power line conditioners. Any detection blocks of the fundamental active, reactive, and harmonic components are not necessary in this method. Thus we offer the simplest way to compensate the fundamental reactive and harmonic currents on the source-side. The other is a reactive power control based strategy, which is with the correlation and cross-correlation coefficients between the feeder voltage and load current. Controlling the detected fundamental reactive component with the cross-correlation coefficient on the source-side reduces the capacity of the PWM inverter, which performs the active power line conditioners. The basic principles of the proposed control strategies are discussed in detail, and then applied to the single-phase active power line conditioners in single-phase based distribution systems. These sigle-phase distributin systems are used in the single-phase three-wire systems and electrified railways. The validity and excellent practicability of the proposed control strategies are confirmed by experimental results. © 2011 IEEE.

DOI： 10.1109/ICPE.2011.5944516

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An isolated bi-directional soft switching DC-DC converter for energy storage system and its voltage stress suppression approach

Kazumasa Hirao, Masayuki Okamoto, Eiji Hiraki, Toshihiko Tanaka

Proceedings of the International Conference on Power Electronics and Drive Systems 555 - 560 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

In recent years, kinetic energy storage systems with electric double layered capacitor (EDLC) bank have been widely studied and developed for the fuel cell electric vehicles(FCEV). In this paper, a full-bridge/push-pull inverter based isolated bi-directional DC-DC soft switching converter for EDLC interface is proposed. The DC-DC converter mentioned here has the great advantage that the number of the switching power devices can be reduced compared to the conventional full-bridge/full-bridge inverter based DC-DC converter. The lower conduction losses can be achieved by this advantage as well as cost reduction. Though, a non-negligible drawback of the full-bridge/push-pull inverter based DC-DC converter has been revealed that is high voltage stress caused by the voltage ringing through the lossless snubber capacitor and leakage inductance of the high frequency transformer. To eliminate this drawback, a low leakage transformer is implemented to the DC-DC converter. The computer aided simulation and the experimental results demonstrate that the adequacy of the proposed circuit and its voltage suppression technique. © 2011 IEEE.

DOI： 10.1109/PEDS.2011.6147304

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A ubiquitous power with DC micro-grid for sctional compact emergency shelters

Keiichi Kato, Masayuki Okamoto, Eiji Hiraki, Toshihiko Tanaka, Makoto Koganei, Fusanori Miura

Proceedings of the International Conference on Power Electronics and Drive Systems 436 - 440 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

This paper proposes a mobile power for the Sectional Compact Emergency Shelter (SCES), which is used under the great disaster. The proposed mobile power consists of the Fuel Cells (FCs), photovoltaic cells (PVs) and lithium-ion rechargeable batteries. This mobile power is constructed in a container car. Therefore, the constructed mobile power is easily moveable and constructible with the SCESs. The authors have named it a "ubiquitous power". The FCs in the ubiquitous power can supply electrical power and waste-heated water. The waste-heated water can be used to the SCESs for a floor heating in winter. The lithium-ion rechargeable batteries level the difference between generated power and consumed power in the SCESs. The number of the SCESs, which proposed one ubiquitous power can supply power continuously, is decided considering both the depth of discharge (DOD) of the batteries and the thermal energy of the waste-heated water from the FCs. It is shown that proposed one ubiquitous power can supply twenty SCESs in winter in Japan. © 2011 IEEE.

DOI： 10.1109/PEDS.2011.6147285

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直列抵抗を模擬可能な大容量キャパシタシミュレータの制御法

田中敦士, 平木英治, 田中俊彦

電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 130 ( 10 ) 1189 - 1190 2010年10月

記述言語：日本語出版者・発行元：一般社団法人電気学会

This paper proposes a new control method for the previously proposed large-capacity capacitor simulator, which can perform an inner series resistor of the EDLCs. In the proposed large-capacity capacitor simulator, one of three legs performs a bi-directional dc-dc converter. The others are used for a single-phase PWM rectifier. In the charging operation of the proposed large-capacity simulator, one-leg is used as a boost converter. Most power, which is stored in the proposed simulator, is injected to the utility through the PWM rectifier. In the discharging operation, the one-leg performs a buck converter. Most power, which is supplied to the load, is from the utility through the PWM rectifier. Thus the proposed simulator performs a large-capacity capacitor with an inner resistor in both charging and discharging operations. The basic principle of the proposed simulator is discussed in detail. The validity and excellent practicability of the proposed control method for the large-capacity capacitor simulator are confirmed using PSIM software.

DOI： 10.1541/ieejias.130.1189

絶縁型双方向DC-DCコンバータの動作解析 (電子通信エネルギー技術)

平生和雅, 岡本昌幸, 平木英治

電子情報通信学会技術研究報告 110 ( 151 ) 23 - 28 2010年7月

直流電圧一定制御を用いた単相三線式配電用電流バランサの制御法

福井博一, 平木英治, 田中俊彦

電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 130 ( 7 ) 935 - 936 2010年7月

記述言語：日本語出版者・発行元：一般社団法人電気学会

This paper deals with applying the constant dc voltage control based algorithm to the current balancer in single-phase three-wire secondary distribution systems. The power flows into a three-leg inverter, which performs the current balancer, are discussed, and then we show that only the reactive power flows into the three-leg inverter. This demonstrates that the required-capacity of the dc capacitor can be reduced as compared to that of the active power quality compensator used in the electrified railways. This reduced-capacity dc capacitor results in the rapid and stable balancing. The basic principle of the proposed method is discussed in detail, and then confirmed by digital computer simulation. Digital computer simulation results demonstrate that the balanced source currents with unity power factor are obtained remaining the unbalanced load currents conditions.

DOI： 10.1541/ieejias.130.935

高周波リンク非対称ZCS-PWM制御DC-DCコンバータの実証評価と検討

三島智和, 平木英治, 中岡睦雄

電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 130 ( 5 ) 605 - 613 2010年5月

記述言語：日本語出版者・発行元：一般社団法人電気学会

This paper presents a novel Zero Current Switching (ZCS)-PWM controlled half-bridge DC-DC converter with High-Frequency (HF)-link. The newly-proposed soft switching DC-DC converter consists of a multi-resonant half-bridge HF-isolated inverter controlled by an asymmetrical PWM scheme and a center-tapped diode rectifier with a choke input filter. In order to attain the wide range of soft-commutation under the condition of constant switching frequency, the single Active Edge-Resonant Cell (AERC) that is composed of a lossless inductor and a switched resonant capacitor is originally employed for the half-bridge inverter arm, providing and assisting ZCS operations in the switching power devices. The ZCS-PWMDC-DC converter treated here is evaluated in experiments using the 800 W-55 kHz prototype. The practical effectiveness of the proposed soft switching DC-DC converter is actually demonstrated and discussed with the experimental results under open loop and closed loop configurations. Finally, the feasibility of the DC-DC converter topology is discussed from the view points of the high efficiency and high power density.

DOI： 10.1541/ieejias.130.605

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論文 - 平木 英治

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論文 - 平木　英治