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Featured researches published by S. Akatsuka.


ieee international magnetics conference | 2000

Analysis of orthogonal-core type linear variable inductor and application to VAr compensator

Kenji Nakamura; O. Ichinokura; Mitsuru Maeda; S. Akatsuka; Kazuo Takasugi; Hiromichi Sato

This paper presents a quantitative analysis of the orthogonal-core type linear variable inductor. The orthogonal-core has wedge gaps for reduction of harmonics of the output currents. The analysis is based on a 3-dimensional nonlinear magnetic circuit of the orthogonal-core. Using the magnetic circuit, one can calculate accurately the operating characteristics of the variable inductor. Furthermore, they develop a VAr compensator for a 6.6 kV AC distribution system using the three-phase variable inductor.


ieee international magnetics conference | 2005

Three-dimensional reluctance network analysis considering an iron loss characteristic for an EIE-core variable inductor

Kenji Nakamura; Shuichi Hayakawa; S. Akatsuka; Takashi Ohinata; Kazuo Minazawa; Osamu Ichinokura


Journal of The Magnetics Society of Japan | 2004

Analysis of Operating Characteristics of EIE-Core Variable Inductor Based on Three-Dimensional Magnetic Circuit

S. Hayakawa; Kenji Nakamura; S. Akatsuka; T. Aoki; M. Kawakami; Takashi Ohinata; K. Minazawa; O. Ichinokura


Journal of The Magnetics Society of Japan | 2001

Development of a Magnetic-Flux-Control-Type Variable Inductor

S. Akatsuka; Takashi Ohinata; M. Kawakami; M. Maeda; Hiromichi Sato; Kenji Nakamura; O. Ichinokura


Journal of The Magnetics Society of Japan | 2001

Development of a Magnetic-Flux-Control-Type Transformer

Takashi Ohinata; S. Akatsuka; M. Kawakami; M. Maeda; Hiromichi Sato; Akira Sasaki; N. Seki; O. Ichinokura


Journal of The Magnetics Society of Japan | 2003

Basic Characteristics of a Magnetic-Flux-Control Variable Inductor.

S. Akatsuka; T. Aoki; Takashi Ohinata; M. Kawakami; Hiromichi Sato; O. Ichinokura


Transactions of the Magnetics Society of Japan | 2005

Development of a Variable Inductor for an Electric Power System

O. Ichinokura; Kenji Nakamura; S. Akatsuka; Takashi Ohinata; K. Minazawa


The transactions of the Institute of Electrical Engineers of Japan.A | 2006

Development of a Magnetic Flux Control Type Variable Inductor and Application for Voltage Stabilization

Takashi Ohinata; S. Akatsuka; M. Kawakami; Kenji Arimatsu; Kazuo Minazawa; Jinichi Hirano; Akira Sasaki; Yukihiro Agatsuma; O. Ichinokura


Journal of The Magnetics Society of Japan | 2005

Consideration of Optimal Construction of EIE-Core

S. Hayakawa; Kenji Nakamura; S. Akatsuka; M. Kawakami; Takashi Ohinata; K. Minazawa; O. Ichinokura


Electrical Engineering in Japan | 2003

Characteristics of an EIE-core variable inductor

Mitsuru Maeda; Takashi Ohinata; T. Aoki; S. Akatsuka; M. Kawakami; Hiromichi Sato; O. Ichinokura

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T. Aoki

Tohoku Electric Power

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