Delay compensation, design and simulation of controllers for distributed control systems

This paper is focused on controller design for distributed control systems. The performance degradation due to time varying control delays in the loop closed through a network has been addressed by a novel predictor based delay compensation method supported by an adaptive sampling scheme when the control delay exceeds the sampling period. Both continuous and discrete time domains have been considered in the design and a methodology has been derived to transform a continuous time design to discrete time implementation without loosing performance. Since the existing simulation tools support only constant sampling frequencies, a different approach based on a set of differential equations representing the system has also been presented.