Speed/position sensorless control of two-phase induction motor drive system using virtual injection method

摘要

The paper deals with speed/position servosystem with 2-phase electrical induction motor for robotic applications. The new developed method has been used for speed/position control. The precision of position determination is less than 2.5° el. in steady-state operation in spite of virtual sensorless method. It needs - for real time control - high computing power for control algorithms and very small time sampling interval. Maximum of motor electromagnetic torque is providing by field oriented control (FOC).