In order to reduce the costs of implementing radial position control system a three-phase bearingless machine with split winding, this article proposes driving method that uses only two phases instead traditional one. It reduces from six four number inverter legs, drivers, sensors, and current controllers necessary drive system. To justify proposal, new power configuration was applied 250 W con...

The vibration originated from the rotor’s unbalance mass impacts on the current oscillation. When the rotor rotating at high speed, power amplifier circuit will be burned down by excessive vibration control current, and at the same time the excessive control force will be generated. The vibrating force transfers to frame, which causes the system vibration and influence the dynamic properties an...

In this paper it is proposed the displacement control of a bearingless induction machine (BIM) with split winding and optimized drive structure using Active Disturbance Rejection Control (ADRC). Considering that BIM multivariable, nonlinear, time-varying system coupled variables, advanced techniques can be useful in order to make operate efficiently good dynamic performance. The ADRC considers ...