Improvement of motor and power converter sutable for control undre magnetic saturation and six-step drive

2016 Fiscal Year Final Research Report

• Project/Area Number: 25249030
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Nagoya University
• Principal Investigator: DOKI Shinji 名古屋大学, 工学研究科, 教授 (10273260)
• Research Collaborator: NASHIKI Masayuki 名古屋大学, 大学院工学研究科, 非常勤研究員
• Project Period (FY): 2013-05-31 – 2016-03-31
• Keywords: 駆動用モータ / 界磁巻線 / 非接触給電 / 電気自動車 / 高トルク密度

Outline of Final Research Achievements

In this research, Motor drive system, which consist of motor, inverter and its control technology, has been developed for traction motor of Electric Vehicle(EV). At first, novel winding field type synchronous motor driven by 4-phase inverter was proposed. The system can supply the power from a stator winding to a rotor field winding without any physical contact and be driven as ordinary 3 phase AC synchronous motor. And independent current control between the field current and the torque current can be also realized. By using this proposed motor and control technique, power factor even in "Low-speed and High-torque" region for hill climb drive and "High-speed" region for highway drive are kept over 90% under a voltage limitation.

Free Research Field

電力工学・電力変換・電気機器