IEEJ Journal of Industry Applications最新文献_第10页

Power Decoupling Control of Electrolytic Capacitor-Less Dual-Inverter to Reduce Interharmonic Currents Under Periodic Load Fluctuation 负载周期性波动下无电解电容双逆变器功率解耦控制减小谐波电流

IF 1.7

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.22011386

T. Sakurai, H. Haga

引用次数: 0

Feasible Power Control Method with a Low Sampling Frequency for Bidirectional Wireless Power Transfer in Battery-Powered Railway Vehicle Systems 可行的低采样频率的电池供电轨道车辆双向无线电力传输功率控制方法

IF 1.7

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.23001645

Eita Sato, K. Kondo

引用次数: 0

Application of Frequency-Domain Noise-Source Model to Simulation of Time-Synchronized Near-Magnetic-Field Distribution above a Power Circuit 频域噪声源模型在电源电路上时间同步近磁场分布仿真中的应用

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.23005684

Keita Takahashi, Takaaki Ibuchi, Tsuyoshi Funaki

{"title":"Application of Frequency-Domain Noise-Source Model to Simulation of Time-Synchronized Near-Magnetic-Field Distribution above a Power Circuit","authors":"Keita Takahashi, Takaaki Ibuchi, Tsuyoshi Funaki","doi":"10.1541/ieejjia.23005684","DOIUrl":"https://doi.org/10.1541/ieejjia.23005684","url":null,"abstract":"The high-electromagnetic-interference (EMI)-noise area in a power circuit should be clarified when designing a low-EMI-noise power converter. For example, shielding of the power circuit prevents the EMI noise propagation to other circuits via near field couplings. It is important to know the high-EMI-noise area which should be shielded. The EMI noise distribution can be visualized by measuring the near-magnetic-field distribution above the power circuit. However, we cannot measure the near-magnetic-field distribution if there is not enough space for scanning a magnetic field probe between the power circuit and other circuits. Therefore, we propose to adopt a three-dimensional electromagnetic simulation for acquiring the near-magnetic-field distribution above a power circuit. In this paper, we study the validity of the frequency-domain noise-source model for the simulation of the near-magnetic field distribution. We evaluate the near-magnetic-field distribution maps for turn-on and turn-off of the transistor, respectively. The high-EMI-noise area differs depending on frequencies. The high-EMI-noise area for turn-on is different from that for turn-off. We have clarified that each high-EMI-noise area can be predicted by the simulation.","PeriodicalId":45552,"journal":{"name":"IEEJ Journal of Industry Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135442909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism of the Sliding Contact of a Ag Ag–Graphite Brush against a Au Au-plated Slip Ring for Varying Ag Content 银-银-石墨电刷与镀金滑环在不同银含量下的滑动接触机理

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.23003850

Naoki Fukuda, Koichiro Sawa, Minoru Aoyagi, Takahiro Ueno

{"title":"Mechanism of the Sliding Contact of a Ag Ag–Graphite Brush against a Au Au-plated Slip Ring for Varying Ag Content","authors":"Naoki Fukuda, Koichiro Sawa, Minoru Aoyagi, Takahiro Ueno","doi":"10.1541/ieejjia.23003850","DOIUrl":"https://doi.org/10.1541/ieejjia.23003850","url":null,"abstract":"Brushes enable the transfer of electrical current between stationary and moving conductors. Typical contacting components are a brush and commutator in direct-current machines and a brush and slip ring in alternating-current machines. In recent years, Ag–graphite brushes and noble-metal-coated slip rings have often been applied. However, there are many aspects concerning the sliding contact of these components that require clarification. This paper focuses on characteristics relating to the brush wear and contact voltage drop of Ag–graphite brushes when the Ag content is varied for a Au-plated slip ring. In this study, we conducted sliding tests, using Ag–graphite brushes (coated with Ag contents of 50, 60, 70, 80, and 90 wt%) and a Au-coated slip ring. The results showed the effects of the interposing layer on the brush wear and drop in contact voltage. In particular, there were three distinct compositional zones, namely a zone where the effect of graphite was dominant (Ag content of the brush of 50 wt%), a zone where both the graphite and Ag powder had influence (60–80 wt%), and a zone where the effect of Ag powder was dominant (90 wt%).","PeriodicalId":45552,"journal":{"name":"IEEJ Journal of Industry Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135800454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observer-based Robust Control: Its Application to Permanent Magnet Synchronous Motors 基于观测器的鲁棒控制在永磁同步电机中的应用

IF 1.7

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.22005294

Yong Woo Jeong, C. Chung

引用次数: 0

Motion-Copying System with In-Tool Sensing 具有工具内传感的运动复制系统

IF 1.7

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.22004640

K. Fujisaki, S. Katsura

引用次数: 0

Machine-learning-based prediction of the three-dimensional (3D) position coordinates of 3D proximity sensing frames 基于机器学习的三维接近感测帧的三维(3D)位置坐标预测

IF 1.7

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.22004763

T. Kashiwao, Masayuki Hiro, Keita Hayashi, Mikio Deguchi

引用次数: 0

Continuous Operation of a Half-Bridge with Multi-Parallel GaN Power Devices for Increased Current Capability 多并联GaN功率器件的半桥连续运行以提高电流能力

IF 1.7

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.22007958

Takashi Sawada, H. Tadano, K. Shiozaki, T. Isobe

引用次数: 1

Examination of Non-Sinusoidal Current Drive in Direct Current excited Reluctance Motor 直流励磁电机非正弦电流驱动的研究

IF 1.7

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.22008145

Y. Koishi, A. Yamaguchi, Hiroki Goto

引用次数: 0

Wireless Power Transfer System for Mobile Robots with Impedance Matching by Adjusting Position of Driver Coil 基于驱动线圈位置调整阻抗匹配的移动机器人无线电力传输系统

IF 1.7

IEEJ Journal of Industry Applications Pub Date : 2023-01-01 DOI: 10.1541/ieejjia.22009525

Toshiki Ohori, Xiang Li, Hideyuki Nakanishi, Shigeki Ozawa, W. Hijikata

引用次数: 0