Interior Winding Synchronous Motor for Reducing AC Loss in Ultra High Speed Rotation Range

Abstract

　Currently, there is a need for ultra-high-speed motors that exceed 100,000 rpm, such as turbochargers and compressors. Conventional motors have a problem that when they are driven in an ultra-high speed rotation region, frequency-dependent losses such as iron loss and eddy current loss become large. In contrast, the authors have proposed interior winding synchronous motor, and in this paper we compare the loss reduction effect with a conventional motor.