MODEL-REFERENCE CONTROL OF A GAS-TURBINE ENGINE

A simple control law is developed that guarantees that the outputs of a linear time invariant plant with feedthrough elements will converge asymptotically to a pre-specified set of desired trajectories. This co ntrol law is illustrated on a gas turbine engine to demonstrate its ap plicability to higher dimensional problems and to highlight the fast a symptotic convergence towards the desired trajectories. The algorithm presented here is fairly straight forward to implement, and should be a useful tool for model reference control. The desired model is implem ented off-line, thus allowing for a potential real-time application. T he only assumption made in this work is that the modes of the 'actual' plant are controllable. No assumptions are made or required on the 'd esired' plant. The dynamic characteristics of both the 'actual' and th e 'desired' plant can actually be quite different. The control law gen erates an input that forces the 'actual' outputs to follow the 'desire d' trajectories.