|Elemental Technologies and Recent Advances in Reluctance Torque Assisted Motors|
|Investigating R&D Committee on Elemental Technologies and Recent Advances in Reluctance Torque Assisted Motors|
|The reluctance torque assisted motors such as a switched reluctance motor, a synchronous reluctance motor and an interior permanent magnet synchronous motor use the reluctance torque in chiefly or auxiliary. They have been applied to practical use according to the application and the purpose. Especially, increasing efficiency and decreasing noise are rapidly advanced in recent years, and thus they are attracted as a high-performance motor in various fields such as air conditioners and EV/HEV.
This report is a summary of the activity of the investigating R&D committee, which aims to clarify the trend of development and application of the reluctance torque assisted motor with relation to the progress of the elemental technologies such as electromagnetic material technology, computer-aided design technology, control technique, and drive circuit technology. In Chapter 1, the background of this investigating R&D committee and the research trend of the reluctance torque assisted motors are described. In Chapter 2, the classification and the feature of the reluctance torque assisted motors and the relation to elemental technologies are described. In Chapter 3, the relation between the technology trend of electromagnetic materials such as permanent magnets and electrical steels and the advances of the reluctance torque assisted motor are described, and the evaluation technology of electromagnetic materials are also described. In Chapter 4, the advances of performances due to the computer-aided design technology such as FEM are described. In Chapter 5, the advances of performances due to control technique such as a high-performance control and a sensorless control are explained. In Chapter 6, the recent advances and applications are described from the relation of elemental technologies.
©2005. The Institute of Electrical Engineers of Japan