Repetitive control for systems with uncertain period-time

Repetitive control is useful if periodic disturbances act on a control system. Perfect (asymptotic) disturbance rejection is achieved if the period-time is exactly known. For those cases where the period-time changes and cannot be measured directly by an auxiliary signal, a robust repetitive controller structure is proposed. It uses multiple memory-loops in a certain feedback con

• Type: Journal
• Year: 2002
• Where: AUTOMATICA
• Authors: Maarten Steinbuch
• Keywords: AUTOMATICA 2002, Disturbance Rejection, Repetitive Controller Structure, Robust Repetitive Controller