High-performance motion control of linear motor drives

This paper presents a high-performance linear drive control featuring encoder signal correction, oscillation damping and an advanced feedforward control for friction, speed and acceleration to reduce the dynamic trajectory errors. These measures and tools aiming at control optimization are investigated concerning their performance and benefits with linear drive systems. Major costs can be reduced by using magneto-resistive or hall effect based sensors. Different methods for determining the commutation angle allow to replace the absolute position encoders by incremental encoders. Specific analysis and commissioning tools allow an easy handling of the advanced features