12. APPLICATION OF DUAL CONTROLLERS TO A LABORATORY SCALE VERTICAL TAKE-OFF AIRPLANE

Abstract

The application of dual control with direct adaptation to the roll-angle control of a laboratory scale vertical take-off airplane (Patra et al., 1994) will be described below. The bicriterial approach will be applied for the synthesis of a dual controller based on pole-zero-placement. At first, the pole-zero placement adaptive control law for linear SISO plants will be discussed. After describing the experimental setup, the results of an adaptive controller for the mechanical laboratory pilot-plant will be presented. It will be pointed out that adaptive control is necessary and presents the most suitable approach for this plant. The dual control algorithm with direct adaptation will be compared to indirect and direct adaptive control strategies based on the standard CE assumption.