The optical rotation angle sensor is characterized in that it is excellent in resolution and angle detection accuracy, and the magnetic sensor is characterized in that it is resistant to foreign matter such as dust and d ... more
Electrostatic discharge (ESD) immunity testing for consumer or industry electronic equipment is specified by the International Electrotechnical Committee (IEC) as IEC 61000-4-2, and has to be in compliance with both the ... more
The initiating process of vacuum breakdown is still unknown despite the efforts of many researchers in the long history of vacuum insulation. This paper reports the results of Particle-In-Cell Monte Carlo Collision simul ... more
To investigate the breakdown mechanism in oil/PB composite insulation systems applied to power transformers, we have measured the electric field in partial discharge occurrence by the application of lightning impulse vol ... more
Magnetoencephalography (MEG) requires a magnetically shielded room (MSR) for protection against very slow and micro magnetic noise. An index called initial permeability, μi, is generally used to evaluate the performance ... more
Under the theme of raising the efficiency of whiteーcollar business tasks using software robots, we performed a study of industryーacademia bidirectional learning in which project leaders from a university and a company ac ... more
This paper presents the active control system for Resistive Wall Mode (RWM) stabilization in the low-aspect-ratio Reversed Field Pinch (RFP) machine RELAX. In magnetic confinement fusion research, RWM is MHD instability ... more
This paper describes measurements, causes, and countermeasures of voltage reduction, spread of voltage unbalance, and voltage flicker, which are technical issues of voltage regulation in distribution system in recent yea ... more
A Voltage Control Method in Coordination with an SVR using Distributed Energy Resources in Customers for System Voltage Stabilization
論文No: ページ数: 11 日付: 2020/06/01
著者: 石原 浩毅（三菱電機（株）先端技術総合研究所），灘 香帆（三菱電機（株）先端技術総合研究所），田中 美和子（三菱電機（株）先端技術総合研究所），井上 禎之（三菱電機（株）先端技術総合研究所），桑田 朗子（三菱電機（株）先端技術総合研究所），高野 富裕（三菱電機（株）先端技術総合研究所）
キーワード : 配電系統，電圧制御，太陽光発電，パワーコンディショナ，無効電力制御 distribution system，voltage control，photovoltaic，power conditioning system，reactive power control
According to the increase of the amount of renewable energy, voltage control of the distribution system is becoming more important. Thus we propose a voltage control method of power conditioning systems (PCSs) in the cus ... more
An optimization of distribution system with Distributed Generators (DGs) is a big challenge in recent power systems. In our previous study(23) a real-time control method has been proposed to track an optimal operating po ... more
Techniques for Each Problem of the Voltage Regulator for Distribution Line, and their Advantages and Disadvantages Evaluation
論文No: ページ数: 9 日付: 2020/06/01
著者: 白土 紀明（（株）ダイヘン 配電システム事業部 技術部），平野 南洋（（株）ダイヘン 配電システム事業部 技術部）
キーワード : 電圧調整機器，高速電圧調整，移動平均制御，不平衡抑制 voltage regulator，high-speed voltage regulation，moving average control，unbalanced voltage improving
Recent years, many issues about voltage and power quality arise in distribution lines by the spread of distributed power supplies. To cope with this, many voltage control techniques of the voltage regulator for distribut ... more
Promotion of photovoltaic power generation (PV) is accelerated in the world, however, large voltage fluctuation by massive PVs in distribution system may cause frequently operation of voltage regulation device such as LR ... more
Operation of Voltage Reactive Power Control Devices based on Cooperation between Two-Voltage Class Transmission Network with PV Systems to Reduce Power Loss
論文No: ページ数: 11 日付: 2020/06/01
著者: 金子 曜久（早稲田大学 先進理工学研究科 電気・情報生命専攻），芳澤 信哉（早稲田大学 先進理工学研究科 電気・情報生命専攻），林 泰弘（早稲田大学 先進理工学研究科 電気・情報生命専攻），杉村 修平（（株）明電舎），植田 喜延（（株）明電舎），田邊 隆之（（株）明電舎）
キーワード : 電圧無効電力制御，送電損失，最適潮流計算，タブーサーチ，太陽光発電システム，送電系統 voltage reactive power control (VQC)，power loss，optimal power flow，tabu-search，photovoltaic system，transmission network
Transmission system operators (TSO) are responsible to manage the power quality within a proper range and to reduce power loss. Voltage reactive power control (VQC) is mainly utilized to manage the power flow. In the con ... more
A Study on Voltage Estimation Methodology using Regression Tree for High Voltage System
論文No: ページ数: 9 日付: 2020/06/01
著者: 説田 貴旭（名古屋工業大学大学院 工学研究科），青木 睦（名古屋工業大学大学院 工学研究科），大堀 良介（名古屋工業大学大学院 工学研究科），Suresh Chand Verma（中部電力（株）技術開発本部 電力技術研究所），下野 晃裕（中部電力（株）技術開発本部 電力技術研究所）
キーワード : 電圧推定，特高系統，再生可能エネルギー，回帰木 voltage estimation，high voltage system，renewable energy，regression tree
In a power system, when a large amount of renewable energy sources (RES) are introduced, there is a possibility that the voltage can't be maintained because of output fluctuation. In order to maintain voltage even for su ... more
Verification of Voltage Fluctuation Suppression by use of a Large-Scale Battery System in Minami Soma Substation
論文No: ページ数: 7 日付: 2020/06/01
著者: 植田 喜延（（株）明電舎），金山 哲也（（株）明電舎），疋田 裕幸（（株）明電舎），飛田 雄一（東北電力（株）），関沼 和浩（東北電力（株））
キーワード : 電圧変動，再生可能エネルギー，無効電力制御 voltage fluctuation，renewable energy，reactive power control
Voltage fluctuations caused by output fluctuations of renewable energies are becoming an issue where a large amount of renewable energies interconnect to a localized area. We have developed a reactive power control syste ... more
Recently, distributed generation using renewable energy sources has increased in power systems to solve environmental problems and resource exhaustion problems. However, conventional reliability evaluation methods of pow ... more
Long-term Transition of the Value of PV and Wind Power Installation based on the Renewable Energy Penetration Scenario
論文No: ページ数: 10 日付: 2020/06/01
著者: 鈴木 郁海（東京農工大学大学院 生物システム応用科学府），根岸 信太郎（東京農工大学大学院 生物システム応用科学府），池上 貴志（東京農工大学大学院 工学研究院 先端機械システム部門）
キーワード : 起動停止計画，再エネ普及シナリオ，出力抑制，混合整数線形計画法 unit commitment，renewable energy installation scenario，curtailment，mixed integer linear programing
It is expected to promote the introduction of renewable energy (RE), such as photovoltaic (PV) and wind power (WP), from the view points of carbon dioxide reduction and diversification of energy sources. However, as the ... more
Virtual Synchronous Generator Control of Power System including Large-scale Wind Farm by Cooperative Operation between Battery and LFC Hydro Power Plant
Penetration level of large-scale wind farm into the existing power system has been increasing significantly, which impacts on the transient stability during a network fault. This is because wind farm can be disconnected ... more
A Study for Grounding Method of a Voltage Source Converter Type Back-to-Back System
論文No: ページ数: 9 日付: 2020/06/01
著者: 中村 文則（三菱電機（株）系統変電システム製作所），田畠 和順（三菱電機（株）系統変電システム製作所），大西 亮太（三菱電機（株）系統変電システム製作所），伊瀬 敏史（学校法人奈良学園）
キーワード : 自励式BTB，接地方式，中性点接地リアクトル voltage source converter type BTB，grounding method，neutral point reactor
The grounding of a Back-to-Back system is necessary in order to determine the valve insulation level. The commonly used method is direct grounding of the negative side of the DC voltage but this method requires the full ... more
Surface charge accumulation phenomena on insulating epoxy spacer are measured under DC-GIS simulated environment. Homo-charges are accumulated near the electrodes, and charge injection from the electrodes is assumed to b ... more
In this paper, received power levels in 420M/ 920M/ 2.4G/ 5.3GHz bands for sensor networks and WLANs are obtained by ray-trace analysis in an office environment and the detail properties of propagation paths are analyzed ... more
Various devices such as computer and peripheral device contribute to our lives. Because there is a wide variety of device, the types of device connector standard are increasing. A converter for converting the electrical ... more
Combined Resource Allocation for Fronthaul and Backhaul to Improve Throughput and Fairness in HetNet Environment
論文No: ページ数: 8 日付: 2020/06/01
著者: Gaku Kato (University of Fukui), Takuji Tachibana (University of Fukui)
キーワード : HetNet，Throughput，Fairness，Fronthaul，Backhaul，Optimization problem
In this paper, in order to improve throughput and fairness in HetNet environment that consists of two different types of base stations (BSs), we propose a combined resource allocation for fronthaul and backhaul. In our p ... more
In the market increased diversification and globalization, manufacturing companies are making efforts to improve their business operations to enhance competitiveness. Business management, such as visualizing and analyzin ... more
Machine-to-machine (M2M) services that connect devices and provide many services are drawing increasing attention. We propose an information-centric networking-based wireless sensor network (ICSN) design for cost reducti ... more
A 7.21-bit ENOB 100MS/s 1.51mW Inverter based Pipelined ADC with Digital Calibration for Breast Cancer Detection System
論文No: ページ数: 7 日付: 2020/06/01
著者: Yoshihiro Masui (Department of Electronics and Computer Engineering, Hiroshima Institute of Technology), Tsukasa Nishimiya (Department of Electronics and Computer Engineering, Hiroshima Institute of Technology), Allex Uemi (Department of Electronics and C
キーワード : medical applications，ADC，pipelined，high-speed operation，digital calibration
A new pipelined ADC architecture is proposed for medical applications. We evaluated the proposed ADC architecture using a 180 nm CMOS-process. The designed pipelined ADC achieved 58.24 dB SFDR and 45.14 dB SNDR (ENOB = 7 ... more
A Deep Learning Approach Based on Sparse Autoencoder with Long Short-Term Memory for Network Intrusion Detection
論文No: ページ数: 8 日付: 2020/06/01
著者: Zolzaya Kherlenchimeg (Department of Design and Media Technology, Graduate School of Engineering, Iwate University), Naoshi Nakaya (Department of Design and Media Technology, Graduate School of Engineering, Iwate University)
キーワード : intrusion detection，sparse autoencoder，long short-term memory，dimension reduction，deep learning
In recent years, a deep neural network has been solving a variety of complex problems of science and engineering fields ranging from healthcare to transportation. Among them, one of the most crucial issues is to protect ... more
The received signal strength indicator (RSSI) is used to estimate the distance between a transmitter and receiver. We focus on the RSSI to localize the transmitter because it can be used to determine whether a receiver i ... more
