System napędowy taśmociągu z wolnobieżnym silnikiem PMSM

摘要

The drive system of belt conveyor with low-speed PMSM motor rated at 250 kW is presented in the paper. The motor has been optimized so that it would attain maximum torque value in overload range. This has been achieved by introducing additional packing of ferromagnetic material along the rotor circumference. To determine rotor position, an estimation system basing on perturbed test signal from absolute encoder with SSI serial communication has been used. The position estimator has been verified in the model circuit and real drive system.