Kouji Obayashi
Ashikaga Institute of Technology
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Publication
Featured researches published by Kouji Obayashi.
power conversion conference | 2002
Toshiyuki Baba; Isao Masukane; Kouki Matsuse; Hisayoshi Ohta; Kouji Obayashi
This paper describes a method to estimate rotor position at stand-still mode and characteristics of motor efficiency at driving mode of a permanent magnet synchronous motor without position sensor. The motor, which is additionally examined for the stator core and has a structure with closed stator slot, is partially saturated at saturable yoke by small armature current. The estimation is performed by using a vector locus of armature current response at partial magnetic saturation. We can obtain the estimation result of a maximum error, 11 degrees, in electrical angle with 6 percent of rated current.
Transactions of the Institute of Systems, Control and Information Engineers | 2001
Kouji Obayashi; Yoshitomo Okada; Kazuaki Kitamura
Transactions of the Institute of Systems, Control and Information Engineers | 2000
Yoshitomo Okada; Kouji Obayashi; Kazuaki Kitamura; Zenjiro Osawa
Transactions of the Institute of Systems, Control and Information Engineers | 1998
Kouji Obayashi; Yoshitomo Okada; Tatuya Doi
Transactions of the Institute of Systems, Control and Information Engineers | 1997
Yoshitomo Okada; Kouji Obayashi
Ieej Transactions on Industry Applications | 2001
Kouji Obayashi; Yoshitomo Okada; Shinva Dobashi; Shinji Ikeda
Ieej Transactions on Industry Applications | 1998
Yoshitomo Okada; Kouji Obayashi; Kimio Yamashita
Journal of the Society of Instrument and Control Engineers | 1994
Yoshitomo Okada; Kouji Obayashi; Thoru Hosokawa; Hao Feng; Kimio Yamashita
Ieej Transactions on Industry Applications | 1990
Yoshitomo Okada; Sakae Shinomiya; Kouji Obayashi; Kimio Yamashita
Electrical Engineering in Japan | 1990
Yoshitomo Okada; Sakae Shinomiya; Kouji Obayashi; Kimio Yamashita
