ANZCC 2017 Paper Abstract

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Paper TuBOr.1

Strecker, Timm (Norwegian University of Science and Technology), Aamo, Ole Morten (NTNU)

Frequency Domain Analysis of Backstepping-Based Disturbance Rejection in a Linear Hyperbolic System

Scheduled for presentation during the Regular Session "Robust Control and Optimal Control" (TuBOr), Tuesday, December 19, 2017, 11:00−11:15, Room 7

2017 Australian and New Zealand Control Conference, December 17-20, 2017, Gold Coast Convention Centre, Australia

This information is tentative and subject to change. Compiled on March 29, 2024

Keywords Control Applications, Linear Systems, Robust Control and Systems

Abstract

We perform a frequency-domain analysis of a second-order linear hyperbolic system modeling the so-called heave problem in offshore Managed Pressure Drilling (MPD) in closed loop with a backstepping controller with disturbance feedforward. A measureable disturbance enters at one boundary of the domain and the objective is to track a reference at the same boundary. Both sensing and actuation are restricted to the opposite boundary of the domain. The effect of model uncertainty on closed-loop stability and on the controller performance is investigated and compared to the performance of simpler strategies not using feedforward. The approach is directly applicable to tracking problems in other stable 2x2 linear hyperbolic systems controlled by backstepping.

 

 

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