On new type permanent magnet synchronous motor used in AGV system

Halbach motor is a novel permanent magnet (PM) motor. One-sided and sinusoidal field is produced by the special distribution of permanent magnets. The field can increase air-gap flux and decrease the rotor yoke flux, which can improve power density, efficiency and reduce volume and pulsating torque of motor. It accords with automated guided vehicle system´s need: high efficiency, high power density, low pulsating torque. Full-digital drive system of AGV based on ADSP2188 is designed according to Halbach motor´s distinguishing feature, Experiment results prove that Halbach motor has much more advantages in the AGV system than with traditional permanent magnetic motor.