Investigation of a New Flux-Modulated Permanent Magnet Brushless Motor for EVs

Table 1

Specifications of proposed PM motor.

Rated power (W)	500
Rated phase voltage (V)	75
Rated speed of outer-rotor (rpm)	400
Rated frequency (Hz)	153
Outer-rotor pole-pair number	23
Stationary ring modulation block number	27
Stator slot number	18
Outside diameter of outer-rotor (mm)	155.2
Inside diameter of outer-rotor (mm)	136.2
Outside diameter of stator (mm)	120
Air-gap length (mm)	0.6
Active axial length (mm)	48
Voltage constants 𝐾𝑒 (volts/1000 rpm)	480.7
Torque constants 𝐾𝑡 (oz-in/A)	650