DOI: 10.1016/J.AUTOMATICA.2016.04.021
关键词: Compact space 、 PID controller 、 Mathematics 、 Minimum phase 、 Class (set theory) 、 Degree (graph theory) 、 Control theory 、 Generalization 、 Inverse system 、 Nonlinear system
摘要: A generalization of the PID ź - 1 control has been recently presented in Marino etźal. (2012), which guarantees output tracking smooth periodic reference signals (with known period) for uncertain minimum phase nonlinear systems feedback form with any relative degree . In this note, we show that repetitive learning proposed (2012) also solves same problem a larger class normal form, provided inverse system dynamics satisfy Demidovich condition on suitable compact sets.