Repetitive control for systems with time-delays and application to robotic servo motor
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In many industrial robotic applications there is a need to track periodic reference signals and/or reject periodic disturbances. This paper presents a novel repetitive control design for systems with constant time-delays in both forward and feedback control channels. An additional delay is introduced together with plant delays to construct an internal model for periodic signals, and a simple proportional control is utilized to stabilize the closed-loop system. Sufficient stability conditions of the closed-loop system and the robustness analysis under modeling uncertainties are studied. Experimental results are included to evaluate the validity and effectiveness of the proposed method.
CitationJ. Na [et al.]. Repetitive control for systems with time-delays and application to robotic servo motor. "Lecture notes in computer science", 20 Agost 2012, vol. 7429, p. 377-389.