Multi-periodic repetitive control

Dr G. Weiss (Exeter University)

Abstract

We discuss the concept of a repetitive control system, and recall the main stability theorem for such systems. We give new, improved estimates on the error signal in a repetitive control system. As an extension of repetitive control, we introduce a new control system which is capable of tracking (or rejecting) a superposition of several periodic signals with different periods. We show some simulation results and compare them with results obtained by H-infinity control (without internal model).