Application of Adaptive Dual Controllers to Twin-Screw Unstable Plant

The traditional adaptive controller based on certainty equivalence (CE) assumption and cautious controller can not provide good control quality for systems with unknown and time-varying parameters. The dual control algorithm with direct adaptive pole placement is presented. An experimental plant is built up for the roll angle control of a pilot-plant by means of two propellers. The dual control has provided improved control quality in comparison with traditional adaptive control based on the CE assumption and the cautious control. The relative parameters is adjust with off line simulation. The basical analysis and debugging of hardware-in-the-loop simulation is discussed