The main objective of Frontier in Education Committee is to discuss the Engineering Education at higher education institutions in Japan and to publish the paper or technical reports of many good efforts in education. Thi ... more
Recent Activities of History of Electrical Engineering Committee (HEE)
論文No: ページ数: 2 日付: 2019/01/01
著者: 日髙 邦彦（東京大学大学院工学系研究科）
キーワード : 電気技術史，オーラルヒストリー，21世紀における電力系統技術，卓越研究データベース，ニューズレター，国際活動 history of electrical engineering，oral history，power systems in the 21st century，database on noteworthy contribution for science and technology，newsletter，international activities
The main objective of HEE is to examine the direction in which electrical engineering should move in the years ahead by studying the past. Electrical engineering history constitutes the basis of technologies that we shou ... more
Activities of Technical Committee on Electromagnetic Theory and its Research Topics
論文No: ページ数: 2 日付: 2019/01/01
著者: 後藤 啓次（防衛大学校）
キーワード : 電磁界理論技術委員会の活動，研究事例 activities of Technical Committee on Electromagnetic Theory，research topics
This report briefly presents activities of Technical Committee on Electromagnetic Theory (EMT), IEEJ. Our committee is now implementing the activities on 2018, which includes three times of the technical committee meetin ... more
The technical committee on electromagnetic compatibility (EMC) was established under the Fundamentals and Materials Society (FMS), the Institute of Electrical Engineers in Japan (IEEJ) in 1999. Since then, researches and ... more
Recent plasma and pulsed power technologies have been used in various areas involving organic/inorganic materials processing, environmental protection, biology, medicine, nuclear fusion, propulsion, high-energy particle ... more
This report introduces recent activities of the Technical Committee on Electrical Discharges. The major research subjects and aims of the technical committee on electrical discharges, and the recent activities of the tec ... more
This article reports the topics of the field in light application and visual science, the activities of the technical committee (TC-LAV) and the introduction of research of technical meeting on light application and visu ... more
The IEEJ Technical Committee on Instrumentation and Measurement has explored key technologies in this field through technical meetings and research committees. Its recent activities and some leading research results are ... more
This is a review of the 49th Symposium on Electrical and Electronic Insulating Materials and Application in Systems hosted by Technical Committee on Dielectrics and Electrical Insulation (TC-DEI) in IEEJ in order to over ... more
In this report, we represent current status of quantum computer researches using superconducting technologies and show the direction of the future research and development. A superconducting quantum computer system combi ... more
Effective Utilization Technology of Power Magnetic Materials
論文No: ページ数: 2 日付: 2019/01/01
著者: 榎園 正人（ベクトル磁気特性技術研究所）
キーワード : 電力用磁性材料用，電磁鋼板，電気機器，磁気特性，高効率，低損失 power magnetic material，electrical steel sheet，electrical machine，magnetic characteristic，high efficiency，low loss
This explanation paper is described on positioning and content of the activity of an investigation expert committee of the power magnetic material for the utilization technique of electrical machinery and apparatus. The ... more
N2O gas is a causative substance of global warming, and it must reduce the discharge to the atmosphere. We have been developing the compact type of plasma reactor for decomposing the exhaust gas of N2O. We fabricated the ... more
Combined Effect of Temperature and Humidity on Partial Discharge Inception Voltage of Magnet Wires under Inverter-Surge Voltage
論文No: ページ数: 8 日付: 2019/01/01
著者: 梶 武文（（株）デンソー／名古屋大学大学院工学研究科電気工学専攻），浅井 洋光（（株）デンソー），小島 寛樹（名古屋大学大学院工学研究科電気工学専攻），早川 直樹（名古屋大学大学院工学研究科電気工学専攻）
キーワード : 巻線，インバータサージ電圧，部分放電開始電圧，温度，湿度，初期電子発生確率 magnet wire，inverter-surge voltage，partial discharge inception voltage，temperature，humidity，generation probability of initial electron
We investigated the combined effect of temperature and humidity on partial discharge inception voltage (PDIV) of magnet wires under repetitive surge-wave voltages. As the results, the PDIV increased as the temperature in ... more
Study on Wireless Temperature Measurement Induction Heating System using Magnetic Properties of Mixture of ResovistR and Ferromagnetic Implant with Low Curie Temperature
The aim of this paper is to clarify the treatable distance of Ferromagnetic Implant with Low Curie Temperature (FILCT), superparamagnetic nanoparticles ResovistR (Resovist) and the mixture of FILCT and Resovis ... more
Charging Voltage Dependence of Discharge Characteristics seen from Measured Waveforms of Transient Electric Fields due to Collision ESD of Low Voltage between Spherical Electrodes using Optical Electric Field Probe
論文No: ページ数: 2 日付: 2019/01/01
著者: 川又 憲（東北学院大学情報基盤工学科），石上 忍（東北学院大学情報基盤工学科），嶺岸 茂樹（東北学院大学情報基盤工学科），高 義礼（釧路工業高等専門学校創造工学科電子工学分野），藤原 修（電気通信大学 産学官連携センター）
キーワード : 球電極対，衝突ESD，過渡電界，光電界プローブ，充電電圧依存性 spherical electrode pair，collision ESD，transient electric field，optical electric field probe，charging voltage dependence
Measurements of transient electric fields due to collision electrostatic discharges (ESDs) between charged spherical electrodes with a diameter of 30 mm were conducted at charge voltages from 300 V to 600 V with an optic ... more
During the high economic growth period when electric power demand was continuously growing, installation and renewal of electric power equipment were actively conducted. Therefore, facility failures owing to aging were r ... more
We have proposed a concept model of emergency islanded operation by using distributed generators (DGs) such as PVs, EVs or batteries which can provide power to customers via undamaged distribution network in order to dev ... more
Three Phase Unbalance Elimination in Distribution System by Optimal Inverter Dispatch of PCS
論文No: ページ数: 14 日付: 2019/01/01
著者: Hieu Xuan Nguyen (Graduate School of Engineering, Yokohama National University/Faculty of Engineering, Vietnam National University of Agriculture), Takao Tsuji (Graduate School of Engineering, Yokohama National University), Tsutomu Oyama (Graduate School
キーワード : optimal power flow (OPF)，photovoltaic (PV) system，distribution system，power quality，reactive power control
The increasing introduction of photovoltaic (PV) units into low voltage distribution system causes serious power quality issues, e. g. voltage variation and three phase voltage unbalance (VU) which limit the rating and n ... more
The power grid model, which represents the state of the power grid connection and characteristics of grid components such as loads and generators, is utilized for the fault analysis of the power grid and the necessary ca ... more
The DC series arc-faults lead a risk due to an aging of photovoltaic system components enhanced by environmental factors and high DC voltages in already existing photovoltaic systems. Until recently, many research activi ... more
In this paper, a synthesis of a complex RiCR filter is proposed. The proposed prototype filter includes terminating resistors, floating capacitors and grounded imaginary resistors only. Because the proposed RiCR filter i ... more
External Oscillator-less TDC based All-digital Temperature Sensor
論文No: ページ数: 7 日付: 2019/01/01
著者: 嶋田 英人（（株）豊田中央研究所），水野 健太朗（（株）豊田中央研究所）
キーワード : 温度センサ，車載センサ，ダイオード，時間-デジタル変換器，高温動作 temperature sensor，in-vehicle sensor，diode，Time-to-Digital Converter，high temperature operation
This paper presents a TDC based all-digital temperature sensor with small inaccuracy even at wide temperature range. The proposed sensor utilized CMOS inverters show different temperature characteristics to embed an osci ... more
We propose a unified high precision SPICE model miniature triode tube series. The model formula was devised by high precision measurement data of 12AX7, 12AU7, 12AY7, 12AT7. In the conventional model, the perveance value ... more
In this paper, two passive complex coefficient filters using piezoelectric transformers are proposed. The proposed frequency transformation is specialized for a complex coefficient filter using piezoelectric transformers ... more
A technique to improve the power efficiency of switched capacitor DC-DC converters, which reuses the charge of parasitic capacitance in the circuit, has been reported. In this research, the charge recycling method is app ... more
This paper presents a new FinFET 4T-SRAM that is operated with differential write and single-end read mode, in the near-threshold region. To improve the read margin and the write stability, a 3T read/write assist circuit ... more
In recent years, there is a movement to realize wireless sensor network by energy harvest. However, the power obtained by energy harvesting is very low. Therefore, ADC used for sensors need to have low power consumption. ... more
This paper proposes a systematic derivation of highly linear MOSFET-C filters using two control voltages. This method is an extension of the method given in Ref. (8). A reduction method in the number of MOSFETs is also s ... more
A new method for realizing a zero voltage switching DC-DC converter is proposed. An additional circuit named charging and discharging circuit is introduced to realize zero voltage switching. Efficiency of a DC-DC convert ... more
