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Hybrid servo control system for highly dynamic axes

: Brecher, C.; Merz, M.; Lindemann, D.; Zavelberg, M.

PCIM Europe 2010 : International Exhibition & Conference for POWER ELECTRONICS INTELLIGENT MOTION POWER QUALITY, 4 - 6 May 2010, Exhibition Centre Nuremberg, Proceedings
Stuttgart: Mesago PCIM, 2010
ISBN: 978-3-8007-3229-6
PCIM Europe <2010, Nürnberg>
Fraunhofer IPT ()

The developments presented in the paper focus on the implementation of a combined servo system for mechanically coupled highly-dynamic axes used in production machines. Lowly dynamic movements with a bandwidth of up to 100 Hz and a stroke of several mm are generated by an electro-magnetically driven axis. For highly dynamic movements with a bandwidth of up to 2 kHz a piezo-actuator is used. The control of the dynamic axes bases on an FPGA (Field Programmable Gate Array) system for the feedback control and a microprocessor-based system for low level setpoint generation. This system enables position control clocks of above 200 kHz for high-bandwidth axes.