研究者詳細 - 平木　英治

論文 - 平木　英治

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Stand-alone photovoltaic generation system with combined storage system using EDLC

Hiroaki Nakayama, Eiji Hiraki, Toshihiko Tanaka, Noriaki Koda, Nobuo Takahashi, Shuji Noda

IECON Proceedings (Industrial Electronics Conference) 883 - 888 2009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 is mainly concerned with a newly proposed stand-alone photovoltaic (PV) generation system. This system permanently drives the load with the capacity of about several W, such as the security camera devices, street light and outdoor measurement system, by the electric power by the solar cell. Its fundamentals of operating performances are illustrated and evaluated on the experimental results. Its effectiveness is proved on the basis of the experimental results from a practical point of view. Because of its possibility to drive without the electric power from the commercial power line, this system is especially effective in the out-door use where the commercial electric power line is not supported. ©2009 IEEE.

DOI： 10.1109/IECON.2009.5415035

A Large-Capacity Capacitor Simulator with a PWM Rectifier and Bi-directional DC-to-DC Converter

A. Tanaka, E. Hiraki, T. Tanaka

2009 INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS, VOLS 1 AND 2 1318 - 1323 2009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 universal large-capacity capacitor simulator consisting of a chemical capacitor and three-leg converter. One of three legs performs a bi-directional dc-to-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 in both charging and discharging operations. The basic principle of the proposed simulator is discussed in detail. For an EDLC simulator operation, series resistors should be considered. A new control method, which performs the series resistor, is also proposed. The validity and excellent practicability of the proposed large-capacity capacitor simulator are confirmed using the PSIM software.

DOI： 10.1109/PEDS.2009.5385902

Basic study of a phase-shifted soft switching high-frequency inverter with boost PFC converter for induction heating

Yuki Kawaguchi, Eiji Hiraki, Toshihiko Tanaka, Mutsuo Nakaoka

JOURNAL OF POWER ELECTRONICS 8 ( 2 ) 192 - 199 2008年4月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER HEIDELBERG

This paper is mainly concerned with a high frequency soft-switching PWM inverter suitable for consumer induction heating systems. The proposed system is composed of a soft switching chopper based boost PFC converter stage with passive snubber and phase shifted PWM controlled full bridge ZVZCS high frequency inverter stage. Its fundamental operating performances are illustrated and evaluated in the experimental results. Its effectiveness is substantially proved on the basis of the experimental results from a practical point of view.

直流電圧一定制御を用いた電気鉄道用パワーラインコンディショナの制御法

田中俊彦, 石倉規雄, 福井博一, 平木英治

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 128 ( 2 ) 145 - 146 2008年2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 novel control method for the active power quality compensator used in electrified railways. In the proposed method, only the constant dc voltage control is used to compensate the non-active and unbalanced active currents on the secondary side of the Scott transformer. Any schemes to detect the reactive and harmonic currents are not needed. Thus we can provide the simplest way to improve the power quality in electrified railways. The basic principle of the proposed control method is discussed. The validity and excellent practicability are confirmed by digital computer simulation using PSIM soft ware.

DOI： 10.1541/ieejias.128.145

電源電圧と負荷電流の相関と相互相関に着目し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, 福間慎治

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 128 ( 1 ) 34 - 40 2008年1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 of the current balancer for single-phase three-wire secondary distribution systems using the correlation and cross-correlation coefficients. The components of the load currents correlative and cross-correlative to the primary side voltage waveform, which correspond to the active and reactive currents, are detected in each feeder, then the reactive and unbalanced-active components are compensated on the source side. The balanced currents with the variable power factor are obtained in each feeder. The basic principle of the proposed method is discussed in detail, and then confirmed by digital computer simulation. A proto-type experimental system is constructed and tested. Experimental results demonstrate that the balanced source currents with the power factor of 0.9 are obtained in spite of unbalanced load currents.

DOI： 10.1541/ieejias.128.34

Stand-alone Photovoltaic Generation System with Combined Storage using lead Battery and EDLC

Hiroaki Nakayama, Eiji Hiraki, Toshihiko Tanaka, Noriaki Koda, Nobuo Takahashi, Shuji Node

2008 13TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, VOLS 1-5 1877 - + 2008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 research is mainly concerned with a stand-alone photovoltaic (PV) generation system for low power DC applications placed where the commercial AC grid connection is not supported. In this paper, basic and improved circuit topologies and the control schemes of stand-alone photovoltaic generation system are proposed. To prevent battery from deep discharge, Electric Double Layer Capacitor (EDLC) is incorporated into the proposed systems as combined energy storage device in parallel with conventional lead battery. The fundamentals of operating performances and effectiveness of proposed stand-alone PV system are illustrated and evaluated on the basis of a practical point of view.

A Novel Type Single-Stage ZVS-PWM High-Frequency Load Resonant Inverter with High Performance PFC Rectifier for Consumer IH Appliances

Hisayuki Sugimura, Sang-Pil Mun, Soon-Kurl Kwon, Shinichiro Sumiyoshi, Hideki Omori, Eiji Hiraki, Mutsuo Nakaoka

ICEMS 2008: PROCEEDINGS OF THE 11TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1- 8 1215 - + 2008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：WORLD PUBLISHING CORPORATION

This paper presents a high-efficiency-high power density one stage ZVS-PWM single-ended push-pull (SEPP) high frequency Inverter with new PFC functional scheme. This high-frequency resonant series load resonant inverter with lossless snubbing capacitors is composed of a passive PFC converter operating at one diode conducting bridge circuit and asymmetrical ZVS-PWM high frequency resonant direct inverter without the bulky electrolytic capacitor stage for boosted DC voltage smoothing. In addition, this one stage utility frequency AC (UFAC) to high frequency AC (HFAC) conversion circuit has only one diode conducting mode in the diode bridge rectifier with boost inductor. The operating principle of the one stage UFAC to HFAC series load resonant inverter with lossless capacitors is described by using the switching mode equivalent circuits in addition to the simulated operating voltage and current waveforms. The operating performances of this high-frequency ZVS-PWM resonant direct inverter with lossless snubbing capacitors are illustrated on the basis of simulation analysis which includes its UFAC-to-HFAC power regulation characteristics, soft switching operating range, UFAC side power factor characteristics and UFAC side line current harmonics characteristics by FFT analysis. In principle, the effectiveness of this UFAC-to-HFAC direct power frequency converter using IGBTs for consumer high-frequency IH appliances is evaluated and proved on the basis of simulation results.

Active Voltage Clamped Edge-Resonant Soft Switching PWM High Frequency Cyclo-Converter Using Bidirectional Switches

Hisayuki Sugimura, Sang-Pil Mun, Soon-Kurl Kwon, Eiji Hiraki, Mutsuo Nakaoka

2008 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-10 3917 - + 2008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 presents a utility frequency AC (UFAC) to high frequency AC (HFAC) direct power frequency conversion pulse modulated conditioning circuit using bidirectional power switches. This power converter can efficiently operate under a principle of active zero voltage clamped soft commutation for consumer induction heating (IH) fixing roller for copy machine and printer. This HFAC direct power frequency converter defined as resonant high frequency PWM controlled power frequency converter using bidirectional switches is developed and evaluated in this paper for consumer IH fixing heat roller using industrial HFAC power supply. Its operating principle is described on the basis of switching mode equivalent circuits during switching one cycle period. It is evaluated on the basis of its simulation and experimental results on the performances of HFAC direct power frequency converter treated here including various duty factor control variable vs. HFAC power regulation characteristics as well as zero voltage soft switching ranges.

New Built-in Induction Heating Cooker Using High-Frequency ZVS-PWM Converter with Single Stage Circuit Topology

Hisayuki Sugimura, Bishwajit Saha, Shinichiro Sumiyoshi, Hideki Omori, Sang-Pil Mun, Soon-Kurl Kwon, Eiji Hiraki, Mutsuo Nakaoka

2008 IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING, VOLS 1-5 1010 - + 2008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 presents a novel soft-switching PWM utility frequency AC to high frequency (HF) AC power conversion circuit incorporating boost-active clamp single stage inverter topology. This power converter is more suitable and acceptable for cost effective HF consumer induction heating (IH) applications. Its operating principle and the operation modes are presented using the switching mode equivalent circuits in addition to the operating voltage and current waveforms. The operating performances of this high frequency inverter using the latest IGBTs are illustrated, which includes HFAC power regulation ranges and actual efficiency characteristics based on zero voltage soft switching (ZVS) operation ranges and the power dissipation analysis as compared with those of the previously developed high frequency inverter. In addition, a dual mode selected control scheme of this high frequency inverter based on a constant frequency asymmetrical pulse width modulation (PWM) and pulse density modulation (PDM) control scheme is discussed in this paper in order to extend the soft switching operation ranges and to improve the power conversion efficiency at the low power settings. This power frequency converter practical effectiveness is substantially proved on the basis of experimental results from practical design example.

A New Soft-Switching PWM High Frequency Half-Bridge Inverter Linked DC-DC Converter with Diode-Clamped Active Edge Resonant Snubbers

Hisayuki Sugimura, Tetsuya Etoh, Toshimitsu Doi, Keiki Morimoto, Bishwajit Saha, Sang Pil Mun, Eiji Hiraki, Mutsuo Nakaoka

2008 IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING, VOLS 1-5 2410 - + 2008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

In this paper, the novel circuit topology of half-bridge soft switching PWM DC-DC power converter with a high frequency planar transformer link was presented. The operating principle and switching pattern of the half-bridge soft switching PWM DC-DC power converter described for 40 kHz, 36V and 400A output were illustrated and discussed for low voltage and large current output applications such as telecommunication and automotive applications. The power loss analysis of the proposed soft switching DC-DC power converter was discussed and evaluated as compared with hard switching PWM DC-DC power converter with a high frequency link. The practical effectiveness of the proposed DC-DC power converter operation under soft switching PWM scheme was actually proved from a practical point of view and the high efficiency and power density of this converter could be achieved on the basis of experimental results for low voltage and large current power supplies.

Feasible Evaluation of a Full-Bridge Inverter for Induction Heating Cooking Appliances with Discontinuous Current Mode PFC Control

Yuki Kawaguchi, Eiji Hiraki, Toshihiko Tanaka, Mutsuo Nakaoka, Atsushi Fujita, Hideki Omori

2008 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-10 2948 - + 2008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

A high frequency soft-switching PWM inverter with PFC function suitable for consumer IH cooking appliance is presented in this paper. The proposed system is composed of a soft switching chopper based boost PFC converter with passive snubber and phase shifted PWM controlled full bridge ZVZCS high frequency inverter. In order to meet the utility AC grid current harmonic regulation, a simple PFC control technique with discontinuous current mode is introduced and tested in addition to the fundamental operating performances of the proposed system. Effectiveness of proposed IH system is substantially proved on the basis of the experimental results from a practical point of view.

A Single Active Edge-Resonant Snubber Cell-assisted ZCS Half-Bridge DC-DC Converter with Constant Frequency Asymmetrical PWM Scheme

Tomokazu Mishima, Mutsuo Nakaoka, Eiji Hiraki

2008 13TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, VOLS 1-5 119 - + 2008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

A newly-developed zero current soft-switching (ZCS)-PWM cell-assisted asymmetrical half-bridge (AHB) DC-DC converter topology with a high frequency (HF) link is presented in this paper. The soft-switching half-bridge DC-DC converter consists of a PWM-controlled single-ended half-bridge HF inverter and a center-tapped rectifier linked by a HF transformer. In order to attain the wide range of ZCS commutation in the primary-side HF inverter, the active edge resonant snubber cell composed of a switched capacitor and a lossless inductor is adopted in the half-bridge leg, providing ZCS commutation for a wide range of output power under constant switching frequency. The operation characteristics of the proposed DC-DC converter are described, and its feasibility data is demonstrated and evaluated with simulation and experimental results.

ZCSセルを用いたソフトスイッチングPWM-SEPP高周波インバータとIHクッキングヒータへの応用

三浦祐太, 藤田篤志, 大森英樹, 平木英治, 中岡睦雄

パワーエレクトロニクス学会誌 34 103 - 110 2008年

出版者・発行元：パワーエレクトロニクス学会

In this paper, multi-resonant zero current soft switching (ZCS) -PWM single ended push pull (SEPP) high frequency inverter is newly demonstrated for consumer induction heating (IH) appliances. The proposed inverter circuit has a novel ZCS cell consisting of high side main switch with lossless inductor snubber and active edge-resonant commutation cell (AERCC). The AERCC consisting of auxiliary diode, auxiliary resonant capacitor, auxiliary resonant inductor and auxiliary switch in parallel with the high side main switch arm. In the newly proposed inverter, heating power of IH cooking heater is controlled continuously during all heating power range under a principle of ZCS. The operating principle and performance analysis of the newly proposed inverter with asymmetrical pulse width modulation (PWM) control scheme are described using equivalent circuits in switching mode. This high frequency inverter can regulate heating power continuously from 0.25kW to 2.74kW in experiment with asymmetrical PWM control scheme. Finally, compared with conventional ZVS-PWM-SEPP high frequency inverter with asymmetrical PWM scheme, its power conversion efficiency of is high enough even in at low power range. The feasible effectiveness and practicability of the high frequency inverter treated here are substantially proved on the basis of experimental results for consumer IH cooking heater.

DOI： 10.5416/jipe2003.34.0_103

EPE-PEMC2008 (Poznan: Poland) 国際会議報告

平木英治

パワーエレクトロニクス学会誌 34 226 - 226 2008年

スタンドアローン駆動型太陽光発電システム用ソフトスイッチングコンバータ (第174回[パワーエレクトロニクス学会]定例研究会)

中山浩昭, 平木英治, 田中俊彦

パワーエレクトロニクス学会誌 34 143 - 150 2008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

This paper deals with stand-alone photovoltaic (PV) generation systems low power DC applications, where a combined energy storage device consisting of an acid battery and Electric Double Layer Capacitor (EDLC) to avoid the deep discharge of the acid battery. Two types of the stand-alone PV generation systems, with a conventional converters and soft-switching converter, are constructed and tested. Experimental results demonstrate that the conventional type is very simple, but a large capacity EDLC is needed because of low efficiency. Efficiency of the PV generation system with soft-switching converters is high compared with that of the conventional type, and reduces the capacity of the EDLC. The PV generation system with soft-switching converters is useful for practical applications.

DOI： 10.5416/jipe2003.34.0_143

A Novel Simple Control Method of an Active Power Quality Compensator Used in Electrified Railways with Constant DC Voltage Control

T. Tanaka, N. Ishikura, E. Hiraki

IECON 2008: 34TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1-5, PROCEEDINGS 451 - 456 2008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 novel and simple control method for an active power quality compensator (APQC) used in electrified railways. The proposed method consists of only constant dc capacitor voltage control, which is generally used in APQCs. No detection method for harmonic, reactive and negative-sequence components is necessary. Thus we offer the simplest way to compensate the harmonic, reactive and negative-sequence currents on the primary side of the Scott transformer in the traction substation. The basic principle of the proposed control method 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 balanced source currents with unity power factor are obtained on the primary side with the proposed control method, which uses only constant dc capacitor voltage control.

DOI： 10.1109/IECON.2008.4758004

A novel half-bridge asymmetrical ZCS-PWM DC-DC converter with high frequency-link

Tomokazu Mishima, Eiji Hiraki, Toshihiko Tanaka, Mutsuo Nakaoka

IEEJ Transactions on Industry Applications 128 ( 4 ) 5 - 395 2008年

記述言語：英語掲載種別：研究論文（学術雑誌）

A novel zero current soft-switching (ZCS)-PWM cell-assisted half-bridge DC-DC converter topology with a high frequency link is proposed in this paper. The newly-proposed DC-DC converter consists of a PWM-controlled singleended half-bridge high frequency (HF) inverter and a current doubler rectifier linked with a HF transformer. In order to attain the wide range of ZCS-PWM operation in the primary-side HF inverter, an active edge resonant snubber cell composed by a switched capacitor and a lossless inductor is adopted in the half-bridge leg, providing ZCS commutation for a wide range of output power. The operation characteristics of the DC-DC converter proposed here are described, and its feasibility data is demonstrated and evaluated with simulation and experimental results. © 2008 The Institute of Electrical Engineers of Japan.

DOI： 10.1541/ieejias.128.388

High-frequency link symmetrical active edge resonant snubbers-assisted ZCS-PWM DC-DC converter

T. Mishima, E. Hiraki, T. Tanaka, M. Nakaoka

IET ELECTRIC POWER APPLICATIONS 1 ( 6 ) 907 - 914 2007年11月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：INST ENGINEERING TECHNOLOGY-IET

A novel symmetrical zero current switching (ZCS)-pulse width modulation (PWM) cells-assisted high-frequency transformer link DC-DC converter using insulated gate bipolar transistor (IGBT) modules is presented. The proposed soft switching scheme is based on the switched-capacitor and inductive snubber in the high-voltage side inverter, assisted by active switching of MOSFET synchronous rectifier in the secondary-side low-voltage converter stage. By introducing the ZCS-PWM snubber cells, soft switching commutation which is less sensitive to the current level through the IGBTs can be achieved under the wide output power ranges. The converter circuit topology and the ZCS snubber cell operation are examined and evaluated with simulation results, and the feasibility of the converter topology is verified by experiments using a 1.0 kW - 25 kHz prototype system.

DOI： 10.1049/iet-epa:20060508

A novel detection method of active and reactive currents in single-phase circuits using the correlation and cross-correlation coefficients and its applications

Toshihiko Tanaka, Eiji Hiraki, Kengo Ueda, Kuniaki Sato, Shinji Fukuma

IEEE TRANSACTIONS ON POWER DELIVERY 22 ( 4 ) 2450 - 2456 2007年10月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

This paper proposes a novel method of detecting the active and reactive currents in single-phase circuits using the correlation and cross-correlation coefficients in the time domain. The active current is detected using the correlation coefficient between the source voltage and load current waveforms, and the reactive current is detected using the cross-correlation coefficient. The basic principle of the proposed detection method is discussed, and the proposed method is applied to a previously proposed single-phase shunt active filter for consumer electronic equipment. Simulation and experimental results demonstrate the excellent practicability of the proposed detection method.

DOI： 10.1109/TPWRD.2007.905359

スーパーキャパシタインターフェイス用双方向絶縁形ソフトスイッチングDC-DCコンバータの特性評価

山本剛司, 平木英治, 田中俊彦, 三島智和

電子情報通信学会技術研究報告. EE, 電子通信エネルギー技術 107 ( 149 ) 21 - 26 2007年7月

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,人口増加に伴うエネルギー問題や環境保全といった地球問題から,電気自動車(EV)やハイブリッド自動車(HEV)の研究・開発が進められている。本論文では, EVやHEVの走行エネルギー回収用スーパーキャパシタ回生システムを想定したフルブリッジ-プッシュプル構成の双方向絶縁型ソフトスイッチングDC-DCコンバータを提案し,容量を低減した小型実験回路による基本的な特性評価を行った結果について報告している。

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