repetitive control

A Multirate Fractional-Order Repetitive Control for Laser-Aided Additive Manufacturing

This paper discusses fractional-order repetitive control (RC) to advance the quality of periodic energy deposition in laser-based additive manufacturing (AM). It addresses an intrinsic RC limitation when the exogenous signal frequency cannot divide …

New Repetitive Control with Improved Steady-State Performance and Accelerated Transient

In repetitive control (RC), the enhanced servo performance at the fundamental frequency and its higher order harmonics is usually followed by undesired error amplifications at other frequencies. In this paper, we discuss a new structural …

An Enhanced Repetitive Control Algorithm using the Structure of Disturbance Observer