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Electrical Engineering in Japan

Subject Areas: Energy Engineering and Power Technology; ;
Publisher: Wiley Subscription Services, Inc., A Wiley Company - Wiley
ISSN: 0424-7760
SJR: 29

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Journal Article

Issue Information

2024 Electrical Engineering in Japan

doi:10.1002/eej.23421
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Journal Article

An experimental study on fire ignition in collector cable in wind power generation system caused by direct lightning strike

Seki, Ken‐ichi; Tsuchida, Takashi; Akiba, Atsushi; Tada, Hiroyuki; Sekioka, Shozo

2024 Electrical Engineering in Japan

doi:10.1002/eej.23462

A separable connector is used for the power cables and apparatuses in renewable energy systems. The shield of the collector cable is sometimes an open circuit at one end to reduce power loss due to the shield current. However, this has a disadvantage from the viewpoint of lightning protection....
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Analysis of interference of electromagnetic noise in an electric compressor for vehicle air‐conditioning systems with an integrated mechanical and electrical structure

Uda, Iori; Ogasawara, Satoshi; Orikawa, Koji; Kobayashi, Koji; Yoshida, Hiroshi; Kashihara, Tatsuki; Takada, Kohei

2024 Electrical Engineering in Japan

doi:10.1002/eej.23454

Since a motor drive system contains an inverter (high‐voltage circuit) and gate drive circuits (low‐voltage circit) with a switching regulator, electromagnetic noise is generated in each of these two circuits, and noise interference between these circuits can occur. This paper discusses noise...
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Journal Article

Analysis of high‐frequency electromagnetic ringing phenomenon under GaN‐FET inverter excitation

Ogishima, Norihiro; Thao, Nguyen Gia Minh; Fujisaki, Keisuke

2024 Electrical Engineering in Japan

doi:10.1002/eej.23464

In this study, the ringing phenomenon of gallium nitride‐field effect transistor (GaN‐FET) and silicon‐insulated gate bipolar transistor (Si‐IGBT) inverter excitations in a ring sample was thoroughly measured and analyzed by using a high‐quality oscilloscope with a very high sampling rate of 5...
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Journal Article

A circuit model of electrical wiring nearby building structure for lightning surge analysis

Dei, Hideyuki; Ikeda, Yoki; Nagaoka, Naoto

2024 Electrical Engineering in Japan

doi:10.1002/eej.23456

A model expressing beams, pillars, and electrical wiring in a building for lightning surge simulation by circuit analysis method is proposed in this paper. The proposed model expresses the self‐surge impedance of the electrical wiring as a function of the distance between conductors and the...
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Experimental verification of voltage boost control in a hybrid system using D‐EPC

Matsuno, Hiroki; Akiyama, Hiromu; Yoshimoto, Kantaro; Yokoyama, Tomoki

2024 Electrical Engineering in Japan

doi:10.1002/eej.23460

A novel voltage boost system using DC‐inputs direct electric‐power converter (D‐EPC) is proposed. D‐EPC is an inverter that can control the distribution of power from two sources. In this study, a voltage boost system without boost chopper was developed using the power distribution control of...
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Journal Article

Transformer‐less drive and operation stability analysis of dielectric barrier discharge using a double resonance circuit

Tamida, Taichiro; Nagata, Ryota; Itani, Taiga

2024 Electrical Engineering in Japan

doi:10.1002/eej.23455

A dielectric barrier discharge load (DBD) with a maintenance voltage of 1.5 kV has been successfully driven stably from a 48 V inverter only by resonance voltage boost and no transformer. The proposed circuit consists of a two‐stage resonant circuit. The circuit operation is investigated using...
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Development of event‐based centralized excitation control method of synchronous generators for improving the transient stability

Yamaoka, Fumichika; Kawabe, Kenichi

2024 Electrical Engineering in Japan

doi:10.1002/eej.23458

Maintenance of transient stability is important for the stable operation of power systems. However, as a large amount of renewable energy sources are concerned that the transient stability deteriorates. Excitation control systems have been widely used to improve the transient stability. The...
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Circuit equation in power superimposition for position sensor using single‐phase transformer on PMSM power lines

Kiribuchi, Takeshi; Inoue, Yukinori; Morimoto, Shigeo

2024 Electrical Engineering in Japan

doi:10.1002/eej.23459

Permanent magnet synchronous motors (PMSM) are very popular in the industrial market. Recently, robots are installed to compensate for the shortage of labor. Due to the increase in motors, the number of power lines and position sensor cable wiring are increased; this increase in complicated...
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Journal Article

Atmospheric pressure argon plasma jets I – Measurements of spatial distribution for visible emission spectrum and vacuum ultraviolet

Suzuki, Susumu; Teranishi, Kenji; Itoh, Haruo

2024 Electrical Engineering in Japan

doi:10.1002/eej.23457

This paper describes the observed position dependent emission spectrum and vacuum ultraviolet (VUV) to clarify the optical structure of argon atmospheric pressure plasma jets (APJs). Visible emission spectra of argon, nitrogen, and OH molecules were measured as a function of position from the...

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