U-Model Based 2DoF Multi-Variable IMC for Improved Input-Disturbance Rejection: A Case Study on a 2-Link Robot Manipulator

A 2-degree-of-freedom internal model control strategy based on U-model is presented for an unknown multivariable nonlinear systems. The proposed algorithm focuses the case where the noise is added at the input of the system and makes use of a local disturbance rejector. The unknown multivariable non...

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Bibliographic Details
Main Authors: Syed Saad Azhar Ali, Fouad M. AL-Sunni, M. Shafiq
Format: Article
Language:English
Published: SAGE Publishing 2011-09-01
Series:International Journal of Advanced Robotic Systems
Online Access:https://doi.org/10.5772/45689
Description
Summary:A 2-degree-of-freedom internal model control strategy based on U-model is presented for an unknown multivariable nonlinear systems. The proposed algorithm focuses the case where the noise is added at the input of the system and makes use of a local disturbance rejector. The unknown multivariable nonlinear system is identified by the control oriented U-model and the inverse controller is established using Newton-Raphson method. The proposed algorithm is tested in real-time on a 2-link robot manipulator.
ISSN:1729-8814