Anti-windup for marginally stable plants applied to open water channels

In this paper we apply anti-windup bumpless transfer (AWBT) techniques for marginally stable linear plants to the windup-prone control systems of an open-water channel. AWBT constructions are carried out both for the continuous time and for the discrete time case and are based on preliminary results on L/sub 2/ (respectively l/sub 2/) anti-windup design. The anti-windup properties of these compensation laws (already published in the literature) are recalled and their bumpless transfer properties (corresponding to recent research results) are also discussed. Although the controller and AWBT designs are carried out on simplified linear models of the open water channel, the simulation results are carried out on an experimentally validated high fidelity model of the Haughton Main Channel (Queensland, AU) and show excellent behavior of the AWBT compensation laws, both in continuous and in discrete time.