Research activities -Motor drive-

Original paper
  • T. Kumagai, H. Sakurai, T. shioi, H.Kato, J. Itoh, K. Kusaka, etc: "Experimental Evaluation of Switched Reluctance Motor Made by Blanking Amorphous Alloy Foil", IEEJ Transactions on Industry Applications, Vol. 11, No. 1, pp. 1-11 (2021)
  • K. Nishizawa, J. Itoh, A. Odaka, A. Toba, H. Umida: "Input Current Harmonic Reduction based on Space Vector PWM for Three-level Inverter Operating over a Wide Range Power Factor", IEEJ Journal of Industry Applications, Vol. 8, No. 6, pp. 904-914 (2020)
  • K. Nishizawa, J. Itoh, A. Odaka, A. Toba, H. Umida, S. Fujita: "Current Stress Reduction for DC-Link Capacitors of Three-Phase VSI With Carrier-Based Continuous PWM", IEEE Transactions on Industry Applications, Vol. 55, No. 6, pp. 6061-6072 (2019)
  • K. Nishizawa, J. Itoh, A. Odaka, A. Toba, H. Umida: "Microcomputer-based Discontinuous PWM for DC-link Current Harmonic Reduction in Three-phase VSIs", IEEJ Transactions on Industry Applications, Vol. 8, No. 6, pp. 904-914 (2019)
  • K. Nishizawa, J. Itoh, A. Odaka, A. Toba, H. Umida: "Microcomputer-based Discontinuous PWM for DC-link Current Harmonic Reduction in Three-phase VSIs", IEEJ Journal of Industry Applications, Vol. 8, No. 6, pp. 904-914 (2019)
  • J. Itoh, K. Kawamura, K. Kusaka, Y. Ohnuma, H. Koshikizawa, Kazuyuki Abe: "Control of Starter Generator in a UAV with a Micro Jet Engine", IEEJ Transactions on Industry Applications, Vol. 8, No. 3, pp. 421-429 (2019)
  • K. Nishizawa, J. Itoh, A. Odaka, A. Toba, H. Umida: "Current Harmonic Reduction Based on Space Vector PWM for DC-Link Capacitors in Three-Phase VSIs Operating Over a Wide Range of Power Factor", IEEE Transactions on Power Electronics, Vol. 34, No. 5, pp. 4853-4867 (2019)
  • D. Sato, J. Itoh: "Improvement of the Electric Energy Consumption of Permanent Magnet Synchronous Motor Drive System Using Three-level Inverter ", IEEJ Transactions on Industry Applications, Vol. 135, No. 6, pp. 632-640 (2015)
  • D. Sato, J. Itoh: "Loss Minimization Design Using Permeance Method for Interior Permanent Magnet Synchronous Motor", IEEJ Transactions on Industry Applications, Vol. 135, No. 2, pp. 138-146 (2015)
  • T. Nagano, J. Itoh: "Parallel Connected Multiple Motor Drive System Using Small Auxiliary Inverter for Permanent Magnet Synchronous Motors", IEEJ Journal of Industry Applications, Vol. 4, No. 1, pp. 40-48 (2014)
  • J. Itoh, N. Ohtani: "Square-Wave Operation for a Single-phase-PFC Three-Phase Motor Drive System Without a Reactor", IEEE Trans. On IA, Vol. 47, No. 2, pp. 805-811 (2011)
  • T. Hoshino, J. Itoh: "Output Voltage Correction for a Voltage Source Type Inverter of an Induction Motor Drive" Power Electronics, IEEE Transactions on , vol.25, no.9, pp.2440-2449, Sept. (2010)
  • J. Itoh, Y.Nakajima, G.T.Chiang: "Maximum Torque per Ampere and Maximum Efficiency Control Methods based on V/f Control for IPM Synchronous Motors", IEEJ Journal of Industry Applications, Vol. 3, No. 2, pp. 112-120 (2013)
  • International conference
  • G. Tanaka, H. Watanabe, J. Itoh: ""Current Control Bandwidth Required for Current Source Type Motor Emulator"", S2PC2023(Symposium on Semiconductor Power Conversion), Vol. , No. , pp. (2023)
  • Yusuke Omi, Takumi Yasuda, Takahiro Kumagai, Hiroki Watanabe, Jun-ichi Itoh: "Vibration Reduction Method by Instantaneous Current Control in 120-degree Conduction Mode of Compressor Motor ", EPE'23 ECCE Europe, Vol. , No. 329, pp. (2023)
  • 「Iron Loss Reduction Method of V/f Control for Switched Reluctance Motor」, , Vol. , No. S3-1, pp. (2023)
  • G. Tanaka, K. Miura, J. Itoh, I. Sato: "Analysis of current control bandwidth in current source type motor emulator", 11th International Conference on Power Electronics -ECCE Asia, Vol. , No. , pp. (2023)
  • K. Miura, H. Watanabe, J. Itoh, T. Kiribuchi, H. Tokusaki: "Damping Controller Integrated into Output Current Control Loop and Design for Multiple Servo Drive Systems Connected to Common DC-Bus Line", 2023 IEEE Applied Power Electronics Conference and Exposition (APEC), Vol. , No. , pp. (2023)
  • T. Kumagai, J. Itoh, M. Kato: "V/f control for Switched Reluctance Motor", 2022 IEEE Energy Conversion Congress and Exposition (ECCE), Vol. , No. , pp. (2022)
  • K. Miura, H. Watanabe, K. Kusaka, J. Itoh, T. Kiribuchi, H. Tokusaki: "Simplified Stability Analysis Method for Multiple Servo Drive Systems Connected to Common DC Bus Line", 2022 IEEE Energy Conversion Congress and Exposition (ECCE), Vol. , No. , pp. (2022)
  • "T. Kumagai, J. Itoh, K. Kusaka, D. Sato: ""Miniaturization Design for SRM Satisfying the Requirements of N-T characteristic Focusing Magnetic Saturation"", The 23rd International Conference on Electrical Machines and Systems, Vol. , No. LS2D-3, pp. 269-274 (2020)"
  • T. Kumagai, H. Sakurai, J. Itoh, K. Kusaka, T. Yamaguchi, M. Nakagawa, D. Sato: "Experimental Evaluation of Characteristic of Switched Reluctance Motor Made by Blanking Amorphous Alloy Foil", The 23rd International Conference on Electrical Machines and Systems, Vol. , No. LS2D-1, pp. 258-262 (2020)
  • T. Kumagai, J. Itoh, K.Kusaka: "Reduction Method of Torque Ripple, DC Current Ripple, and Radial Force Ripple with Control Flexibility of Five-Phase SRM", Energy Conversion Congress and Exposition 2020, Vol. , No. , pp. (2020)
  • T. Kumagai, K. Kusaka, J. Itoh: "Reduction Method of Current RMS Value, DC Current Ripple, and Radial Force Ripple for SRM based on Mathematical Model of Magnetization Characteristic", IEEE INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE IFEEC2019, Vol. , No. 1123, pp. (2019)
  • 【Best Paper Award】
  • K. Nishizawa, J. Itoh, S. Fujita, A. Odaka, A. Toba, H. Umida: "Thermal Stress Reduction for DC-link Capacitors of Three-phase VSI with Multiple PWM Switching Patterns", Energy Conversion Congress Exposition 2019, pp. 1584-1591 (2019)
  • J. Itoh, K. kawai, K. Nishizawa, H. Watanabe: "Design of Flux-Axis Angular Speed Estimation using Induced Voltage in Speed Sensor-less Field Oriented Control for Induction Motor", ICPE 2019 , TuC1-2 (2019)
  • K. Nishizawa, J. Itoh, S. Fujita, A. Odaka, A. Toba, H. Umida: "Reduction of DC-link Current Harmonics over Wide Power-Factor Range for Three-Phase VSI using Single-Carrier-Comparison Continuous PWM", Energy Conversion Congress Exposition 2018, Vol. , No. , pp. (2018)
  • T. Kumagai, K. Kusaka, J. Itoh: "Torque Ripple Reduction Method with Minimized Current RMS Value for SRM Based on Mathematical Model of Magnetization Characteristic", 20th European Conference on Power Electronics and Applications, Vol. LS2d, No. 368, pp. (2018)
  • J. Itoh, K. Kawamura, H. Koshikizawa, K.Abe: "Control Strategy for Starter Generator in UAV with Micro Jet Engine", The 2018 International Power Electronics Conference, Vol. , No. 22P21-4, pp. 1567-1574 (2018)
  • J. Itoh, T. Toi, K. Nishizawa: "Stabilization Method Using Equivalent Resistance Gain Based on V/f Control for IPMSM with Long Electrical Time Constant", The 2018 International Power Electronics Conference, Vol. , No. 23E1-5, pp. 2229-2236 (2018)
  • 【Student Paper Award】
  • K. Nishizawa, J. Itoh, Y. Nishizawa: "Quick Compensation Method of Motor Phase Current Sensor Offsets without Motor Parameters for PMSM Drive", Energy Conversion Congress Exposition 2017, Vol. , No. 908, pp. 5877-5883 (2017)
  • T. Kumagai, D. Sato, J. Itoh: "Torque Ripple Reduction Method for SRM based on Mathematical Model considering Voltage Limitation", EPE2017, Vol. DS1g, No. 0392, pp. (2017)
  • K. Nishizawa, J. Itoh, A. Odaka, A. Toba, H. Umida: "Reduction of DC-link current harmonics for Three-phase VSI over Wide Power Factor Range using Single-Carrier-Comparison Discontinuous PWM", EPE2017, Vol. DS2c, No. 0297, pp. (2017)
  • M. Kato, J. Itoh: "Stabilization Method of Current Regulator for Electric Vehicle Motor Drive Systems under Motor Parameter Mismatch Conditions", The Applied Power Electronics Conference and Exposition 2017, Vol. , No. 1983, pp. 599-606 (2017)
  • J. Itoh, T. Masuda, D. Sato, T. Nagano, T. Suzuki: "Development of Magnetic Assist System in Flywheel Energy Storage System for Power Load-Leveling", ICRERA2016, Vol. , No. 52, pp. (2016)
  • T. Nagano, J. Itoh, A. Toba: "Suppression of Short-circuit Current in Halt Sequence to StopTwo-level Inverter connected to PMSM during Regeneration Mode", ICRERA2016, Vol. , No. , pp. (2016)
  • T. Nagano, J. Itoh: "Halt Sequence for Matrix Converter to Suppress Increase of Snubber Capacitor Voltage during Motor Regeneration", IECON2016, Vol. , No. , pp. (2016)
  • D. Sato, J. Itoh: "Open-loop Control for Permanent Magnet Synchronous Motor Driven by Square-wave Voltage and Stabilization Control", IEEE Energy Conversion Congress and Exposition, Vol. , No. , pp. (2016)
  • J. Itoh, T. Toi, M. Kato: "Maximum Torque per Ampere Control Using Hill Climbing Method Without Motor Parameters Based on V/f Control", 18th European Conference on Power Electronics and Applications (EPE'16), Vol. , No. DS3d-Topic 4-0283, pp. (2016)
  • J. Itoh, K.Tanimukai: "Seamless Star-Delta Winding Changeover Circuit for AC Generators", ICRERA2015, Vol. , No. 281, pp. (2015)
  • D. Sato, J. Itoh: "Evaluation Method of Energy Consumption for Permanent Magnet Synchronous Motor Drive System", 41st Annual Conference of the IEEE Industrial Electronics Society, Vol. , No. YF-025275, pp. 5267-5272 (2015)
  • J. Itoh, Y. Ikarashi, K. Nishizawa, H. Tamura: "Torque Ripple Reduction Method of Permanent Magnet Synchronous Motor by Current Sensor Gain Unbalance Correction", IFEEC2015, Vol. , No. , pp. (2015)
  • M. Kato, J.Itoh: "On-line Copper Loss Minimization Control Method of Induction and PM Motors with Periodic Fuluctuation Load", 17th European Conference on Power Electronics and Applications(EPE'15), Vol. , No. , pp. (2015)
  • T. Nagano, K. Orikawa, J. Itoh, A. Toba: "Simplification of Halt Sequence to Suppress Increase of DC-link Voltage during Motor Regeneration", 9th International Conference on Power Electronics, Vol. , No. TuC2-3, pp. (2015)
  • T. Nagano, J. Itoh: "Direct Grid Connection of Permanent Magnet Synchronus Motor Using Auxiliary Inverter and Matrix Converter with Transition Control", IECON2014, Vol. , No. , pp. 21-527 (2015)
  • J. Itoh, D. Sato, T. Nagano, K. Tanaka, N. Yamada: "Development of High Efficiency Flywheel Energy Storage System for Power Load-Leveling", 36th International Conmmunications Energy Conference, Vol. , No. CS2-02, pp. (2014)
  • J. Itoh, T. Nagano, K. Tanaka, K. Orikawa, N. Yamada: "Development of Flywheel Energy Storage System with Multiple Parallel Drives", 2014 IEEE Energy Conversion Congress and Exposition, Vol. , No. , pp. 4568-4575 (2014)
  • D. Sato, J. Itoh: "Loss Minimization Design Using Magnetic Equivalent Circuit for a Permanent Magnet Synchronous Motor", The 2014 International Power Electronics Conference, Vol. , No. 21F4-3, pp. 3815-3822 (2014)
  • T. Nagano, J. Itoh: "Parallel Connected Multiple Drive System Using Small Auxiliary Inverter for Numbers of PMSM", The 2014 International Power Electronics Conference, Vol. , No. 20G1-4, pp. 1253-1260 (2014)
  • M. Kato, K. Orikawa, J. Itoh, N. Saitoh: "Fast Starting Method using both Inverter and Delta-Star Starter for Weaving Machine Drive Systems", IFEEC2013, No. 1182 (2013)
  • W. Aoki, G.T.Chiang, J. Itoh, A. Toba: "Suppression Method of Rising DC Voltage for the Halt Sequence of an Inverter in the Motor Regeneration", IEEE Energy Conversion Congress and Expo 2013, pp. 188-195 (2013)
  • T. Nagano, G. T. Chiang, J. Itoh, K. Kato: "Verification of Parallel Connected Multiple Motor Drive System with Numbers of Permanent Magnet Synchronous Motors", EPE ‘13-ECCE Europe, the 15th European Conference on Power Electronics and Applications (2013)
  • D. Sato, J. Itoh: "Total Loss Comparison of Inverter Circuit Topologies with Interior Permanent Magnet Synchronous Motor Drive System", 5th IEEE Annual International Energy Conversion Congress and Exhibition, Vol. , No. 5-5-4, pp. 537-543 (2013)
  • J. Itoh, Y. Nakajima, M. Kato: "Maximum Torque per Ampere Control Method for IPM Synchronous Motor based on V/f Control", The 10th IEEE International Conference on Power Electronics and Drive Systems,pp. 1322-1327 (2013)"
  • T. Nagano, J. Itoh: "Design of Multi-Parallel Drive Technique for System with Numbers of Permanent Magnet Synchronous Motors", The 10th IEEE International Conference on Power Electronics and Drive Systems,pp. 193-198 (2013)
  • J. Itoh, D. Sato, T. Tanaka: "Investigation of Optimal Operation Method for Permanent Magnet Synchronous Motor Drive System with 3-level Inverter", ICRERA (2012)
  • J. Itoh, Y. Nakajima: "A Study of Quantitative Design Method of Adaptive Currrent Control System with Armature Resistance Identification Function", ECCE Asia, pp. 746-752 (2012)
  • R. Tateno, J. Itoh, N. Saitoh: "Experimental Verification of On-line High Efficiency Control for a Weaving Machine", IEEE 9th PEDS, No. 345 (2011)
  • T. Hoshino, J. Itoh: "Improvement of DC-link Voltage Control Performance using a Disturbance Observer for PWM Rectifier and PM Generator," International Symposium on Global Multidisciplinary Engineering, P-11, 24 Jan. (2011)
  • T. Hoshino, J. Itoh: "Improvement of Output Current Waveform using High-Speed Sampling for Voltage Source Inverter" International Symposium on Global Multidisciplinary Engineering, P-11, 13 Mar. (2010)
  • J. Itoh, D. Ikarashi: "Loss Evaluation of a Two-stage Boost Converter using the Neutral Point of a Motor", IEEE ECCE2010, pp. 2600-2606 (2010)
  • [IEEE Power Electronics Society Student Travel Award]
  • J. Itoh, T. Ogura: "Evaluation of Total Loss for an Inverter and Motor by Applying Modulation Strategies", EPE-PEMC, No. S12, pp. 21-28 (2010)
  • J. Itoh, D. Ikarashi: "Investigation of a Two-stage Boost Converter using the Neutral Point of a Motor", IPEC2010 (2010)
  • [IPEC2010 Student Paper Award]
  • J. Itoh, N. Ohtani: "Square Wave Operation for a Single-phase PFC Three-phase Motor Drive System without a Reactor", ICEMS, LS3F-3 (2009)
  • [Student Paper Award]
  • T. Hoshino, J. Itoh: "Output voltage correction of an induction motor drive using a disturbance observer with speed sensor-less vector control method," Power Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International , pp.607-612, 17-20 May (2009)
  • T. Hoshino, J. Itoh, T. Kaneko: "Dead-Time Voltage Error Correction with Parallel Disturbance Observers for High Performance V/f Control," Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE , pp.2038-2044, 23-27 Sept. (2007)
  • J. Itoh, T. Hoshino, T. Kaneko: "A Performance Improvement of V/f Control Using a Disturbance Observer," Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International , pp.1167-1172, Aug. 30 2006-Sept. 1 (2006)