Abstract

Highly accurate drives must be modelled as elastic systems when designing and implementing feedback position controllers. If not all states can be measured, static output feedback can be well suited for position control. For the design of static output feedback for elastic drives a new method called approximate pole placement is suggested. In particular the stability problems arising when controlling weakly damped elastic drives are taken into account by this method. Approximate pole placement is applied to the design of static output feedback for representative drive models with three degrees of freedom and thereby compared to a well proven method for the design of optimal output feedback

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