Parameter Uncertainty and Time-Delay System Control

摘要

A general scheme for time-delay control systems is presented which shows that with particular choice of system elements and loop gain, many of the existing time-delay systems can be recovered. The effects of plant/model mismatch on optimal control and sensitivity expressions are discussed. A relationship between time delay controllers with mismatch and a delay-free system with delay added in a controller is established. Various L.Q.P. cases are discussed and the suboptimality of published schemes induced by mismatch is exposed.