A GLOBAL STABILIZATION STRATEGY FOR AN INVERTED PENDULUM
B. Srinivasan, P. Huguenin, K. Guemghar, and D. Bonvin
Labaratoire dAutomatique, Ècole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland. e-mail: bala.srinivasan@epfl.ch
The problems of swinging up an inverted pendulum on a cart and controlling it around the upright position have been traditionally treated as two separate problems. This paper proposes a strategy that is globally asymptotically stabilizing under actuator saturation and, in addition, locally exponentially stabilizing. The proposed methodology performs swing up and control simultaneously and uses elements from input-output linearization, energy control, and singular perturbation theory. Experimental results on a laboratory-scale setup are presented to illustrate the applicability of the method.
Keywords: Nonlinear Systems, Stabilization, Feedback Linearization, Energy Control, Singular Perturbation
Session slot T-Tu-A08: Stabilization II/Area code 2c : Non-linear Systems

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