Smart Controller for Pneumatic Actuator

Abstract Accurate position control of a pneumatic actuator is difficult to obtain, because of a strong non-linear characteristics of the valve flow and the friction in the mechanical system. This contribution presents a smart controller strategy with applications on a real plant. Its basic scheme comprises essentially a pole assignment controller with additional input and a block decision. Aspects of valve design, physical system modelling, identification, controller synthesise and experimental results are presented.