@inproceedings{c16c9c51af084bfabdc995fb15dc8655,
title = "Controller parameters selection through bifurcation analysis in a piecewise-smooth system",
abstract = "Classical linear and nonlinear control techniques applied to piecewise-smooth (PWS) systems can be ineffective if an additional bifurcation analysis is not made. Due to the presence of discontinuities, PWS systems present a wide variety of standard and non-standard bifurcations. Safe ranges of system and controller parameters can be established lest these bifurcations appear. This is studied by means of a simplified torsional model of an oilwell drillstring of three degrees of freedom (DOF). A PID-type controller is applied. The bifurcation analysis of the open-loop and the closed-loop systems is used to choose the controller parameters for which non-desired bit sticking situations are avoided. The control goal of driving the rotary velocities to a constant positive value is achieved despite the existence of a sliding motion.",
keywords = "Bifurcation analysis, Discontinuous systems, Dry friction, Oilwell drillstrings, Sliding motions, Stick-slip oscillations",
author = "Navarro-L{\'o}pez, {Eva M.} and Domingo Cort{\'e}s",
year = "2007",
doi = "10.1007/978-3-540-71493-4_73",
language = "Ingl{\'e}s",
isbn = "9783540714927",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "736--740",
booktitle = "Hybrid Systems",
address = "Alemania",
note = "10th International Conference on Hybrid Systems: Computation and Control, HSCC 2007 ; Conference date: 03-04-2007 Through 05-04-2007",
}