Research on an integration motor to achieve high efficiency and high torque density

Kan Akatsu
Dept. of Electric Engineering, Shibaura Institute of Technology


A concept of many power electronics for the electric machine is explained. As an example, a MATRIX motor which has many inverters in the machine is introduced. Some results such as expanding high efficiency area by the winding change over technique, the iron loss reduction by controlling the instantaneous tooth flux, and the high torque generation due to the instantaneous gap flux density control are explained.

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