Robust decomposed system control for an electro‐mechanical linear actuator mechanism under input constraints
Mehdi Heydari Shahna,
Mohammad Bahari,
Jouni Mattila
Abstract:This paper aims to develop a robust decomposed system control (RDSC) strategy under input constraints for an electro‐mechanical linear actuator (EMLA) facing model uncertainty and external disturbances. At first, a state‐space model of a complex multi‐stage gearbox EMLA system, driven by a permanent magnet synchronous motor (PMSM), is developed, and the non‐ideal characteristics of the ball screw are presented through the model. The result is a four‐order nonlinear strict‐feedback form (NSFF) system decomposed… Show more
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