Low-Speed Sensorless Control of Permanent Magnet Synchronous Motors by Three-phase Balanced High Frequency Signal Injection
Kazuki Matsumoto; Yoshitaka Iwaji
2025 28th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2025
20251116, 20251119
Speed-Sensorless Control Method for Induction Motors Using Phase Locked Loop Control and Mutual Inductance Identification
Ayumu Sato; Yoshitaka Iwaji
2025 28th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2025
20251116, 20251119
Detection Accuracy Improvement of Periodic Impulse Disturbances to Detect Machine Anomalies Using Motor Current and Voltage
Shoma Sakata; Yoshitaka Iwaji
2025 28th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2025
20251116, 20251119
Application of Minor Sampling Processing to Permanent Magnet Synchronous Motor Sensorless Control Using Induced Voltage Caused by Magnetic Saturation
Mistuho Sakai; Yoshitaka Iwaji
2025 28th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2025
20251116, 20251119
Permanent Magnet Synchronous Motor Drive System with Synchronous Minor Sampling Processing and Voltage Feedback
Haru Ishigami; Yoshitaka Iwaji
2025 28th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2025
20251116, 20251119
High-efficiency Drive Technology for High-speed, Multi-pole Motors with Minor Sampling Process
Katsuya Haruki; Yoshitaka Iwaji
2024 27th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2024
20241126, 20241129
Position Sensorless Control in Low-Speed Regions for Non-Saliency and Concentrated Winding Motors
Kohei Hayashi; Yoshitaka Iwaji
2024 27th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2024
20241126, 20241129
Study on Minimization of Smoothing Capacitor by Increasing Response of Power Supply Converter
Yoshiya Sato; Yoshitaka Iwaji
2024 27th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2024
20241126, 20241129
Initial Speed Estimation Method for Induction Motors using Regression Analysis and Self-Excited Vibration Phenomenon
Hiroto Kominami; Yoshitaka Iwaji; Naoki Kunihiro; Kazuma Okuda; Takashi Kaneko
2024 27th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2024
20241126, 20241129
Fundamental Study of On-Line Inductance Identification for IPMSM
Keita Ui; Yoshitaka Iwaji
2024 27th International Conference on Electrical Machines and Systems（ICEMS）, Nov. 2024
20241126, 20241129
Motor Current Reconstruction Method using Single Shunt Resistance by High-Frequency Voltage Injection
Takuji Mitsui; Yoshitaka Iwaji
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia), May 2022
20220515, 20220519
Harmonic Reduction Method Using Minor Sampling Process for Signal Injection Position Sensorless Technique
Yuuki Itou; Yoshitaka Iwaji
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia), May 2022
20220515, 20220519
Position sensorless control of switched reluctance motor with mutual-inductance
S.Sumita; Y.Iwaji
2016 19th International Conference on Electrical Machines and Systems (ICEMS), Nov. 2016
20161114, 20161116
Low speed position sensorless method for permanent magnet synchronous motors with closed-slot stator structure
Y.Iwaji; K.Tobari; Y.Onuma
2015 IEEE Energy Conversion Congress and Exposition (ECCE), Sep. 2015
20150920, 20150924
Automatic tuning technique for low speed position sensorless method based on block commutation drive
Y.Iwaji; M.Hano; N.Okamoto; R.Takahata
2015 IEEE International Electric Machines & Drives Conference (IEMDC), May 2015
20150510, 20150513
Sensorless control method using differentiation circuit for switched reluctance motor
S.Sumita; Y.Iwaji; K.Deguchi; Y.Enomoto
2014 IEEE Energy Conversion Congress and Exposition (ECCE), Sep. 2014
20140914, 20140918
Position sensorless control method at zero speed region for permanent magnet synchronous motors using the neutral point voltage of stator windings
Y.Iwaji; R.Takahata; T.Suzuki; S.Aoyagi
2014 IEEE Energy Conversion Congress and Exposition (ECCE), Sep. 2014
20140914, 20140918
Development of frequency-analysis equipment capable of judging propagation direction of conductive EMI
N.Nosaka; S.Ogasawara; M.Takemoto; Y.Iwaji; K.Ogawa
2014 IEEE Energy Conversion Congress and Exposition (ECCE), Sep. 2014
20140914, 20140918
Motor drive system using nonlinear mathematical model for permanent magnet synchronous motors
Y.Iwaji; J.Nakatsugawa; T.Sakai; S.Aoyagi; H.Nagura
2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA), May 2014
20140518, 20140521
All-speed-range drive for surface permanent magnet synchronous motors by combined use of two position sensorless methods
Y.Iwaji; R.Takahata; T.Suzuki; M.Hano
2014 IEEE 5th International Symposium on Sensorless Control for Electrical Drives, May 2014
20140517, 20140518
Low-speed position sensorless drive for highly efficient permanent magnet synchronous motor without rare-earth metals
Y.Iwaji; R.Takahata; T.Suzuki; T.Hirooki; E.Yuji
2013 IEEE Energy Conversion Congress and Exposition, Sep. 2013
20130915, 20130919
Energy saving start-up method by combined use of two position sensorless controls
T.Suzuki; Y.Iwaji; S.Aoyagi; Y.Shimizu; R.Takahata
2013 IEEE Energy Conversion Congress and Exposition, Sep. 2013
20130915, 20130919
Sensorless vector control suitable for position-dependent load torque applications
T.Suzuki; Y.Notohara; Y.Shimizu; Y.Iwaji
2013 IEEE Energy Conversion Congress and Exposition, Sep. 2013
20130915, 20130919
Position sensorless control method at zero speed region for permanent magnet synchronous motors based on block commutation drive
Y.Iwaji; S.Aoyagi; R.Takahata; K.Tobari; I.Suzuki; M.Hano
2013 International Electric Machines & Drives Conference, May 2013
20130512, 20130515
New vector controller for PM motors which modeled the cross-coupling magnetic flux saturation
H.Nagura; Y.Iwaji; J.Nakatsugawa; N.Iwasaki
The 2010 International Power Electronics Conference - ECCE ASIA -, Jun. 2010
20100621, 20100624
Position-sensorless control method at low speed for permanent magnet synchronous motors using induced voltage caused by magnetic saturation
Y.Iwaji; Y.Kokami; M.Kurosawa
The 2010 International Power Electronics Conference - ECCE ASIA -, Jun. 2010
20100621, 20100624
A novel PWM pulse modifying method for reconstructing three-phase AC currents from DC bus currents of inverter
S.Aoyagi; Y.Iwaji; K.Tobari; K.Sakamoto
2009 International Conference on Electrical Machines and Systems, Nov. 2009
20091115, 20091118
Adaptive back EMF parameter adjustment of simplified vector control for position sensorless permanent magnet synchronous motors
K.Sakamoto; Y.Iwaji; D.Kaneko; T.Takeuchi; T.Endo; A.Kawamura
2008 18th International Conference on Electrical Machines, Sep. 2008
20080906, 20080909
Inductance measurement method for permanent magnet synchronous motors using AC with DC bias
J.Nakatsugawa; Y.Notohara; D.Li; Y.Iwaji
2008 18th International Conference on Electrical Machines, Sep. 2008
20080906, 20080909
Position Sensorless Vector Control of Permanent Magnet Synchronous Motors for Electrical Household Appliances
K.Sakamoto; Y.Iwaji; T.Endo; T.Taniguchi; T.Niki; M.Kawamata; A.Kawamura
2007 Power Conversion Conference – Nagoya, Apr. 2007
20070402, 20070405
Position and speed sensorless control for PMSM drive using direct position error estimation
K.Sakamoto; Y.Iwaji; T.Endo; T.Takakura
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE, Nov. 2001
20011129, 20011202
Initial rotor position estimation of the interior permanent magnet synchronous motor
D.Kaneko; Y.Iwaji; K.Sakamoto; T.Endo
Proceedings of the Power Conversion Conference-Osaka 2002, Apr. 2001
20010402, 20010405
A new PWM method to reduce beat phenomenon in large capacity inverters with low-switching frequency
Y.Iwaji; T.Sukegawa; T.Okuyama; T.Ikimi; M.Shigyou; M.Tobise
Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE, 1997
19971005, 19971009
Harmonic evaluation of an NPC PWM inverter employing the harmonic distortion determining factor
S.Fukuda; K.Suzuki; Y.Iwaji
Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE, Oct. 1995
19951008, 19951012
Introduction of the harmonic distortion determining factor and its application to evaluating real time PWM inverters
S.Fukuda; Y.Iwaji
Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting, Oct. 1993
19931002, 19931008
Modelling and control of sinusoidal PWM rectifiers
S.Fukuda; Y.Iwaji; T. Aoyama
1993 Fifth European Conference on Power Electronics and Applications, Sep. 1993
19930913, 19930916
A PWM Control Method Using Pulse Frequency Modulation Technique
Y.Iwaji; S.Fukuda
4th European Conference on Power Electronics and Applications, 1991. EPE'91 Record, Sep. 1991
19910903, 19910906
A pulse frequency modulated PWM scheme for sinusoidal inverters
S.Fukuda; Y.Iwaji
Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE, Jun. 1991
19910624, 19910627
Sinusoidal PWM Control Method Using A Single-chip Microprocessor
Y.Iwaji; S.Fukuda
Proceedings.14 Annual Conference of Industrial Electronics Society, Oct. 1988
19881024, 19881028
A single-chip microprocessor-based PWM technique for sinusoidal inverters
S.Fukuda; Y.Iwaji
Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting, Oct. 1988
19881002, 19881007
PWM technique for inverter with sinusoidal output current
S.Fukuda; H.Hasegawa; Y.Iwaji
Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE, Apr. 1988
19880411, 19880414
