H#x221e;-Robust Optimal Controller with Integral Action for a Coupled Tank System

摘要

The design of anH#x221e;-optimal controller incorporating integral action via polynomial approach for a coupled tank system and a PC based implementation are described. The suboptimalH#x221e;-controller obtained via state space method is reduced to an optimal controller with the insight obtained from the polynomial approach. The choice of the weighting functions forH#x221e;#x2014;optimal controller, advantages and limitations of state space and polynomial techniques are discussed in full detail.