Distributed control systems: Linear design options and analysis for a reactor hot water layer system

This paper presents results and commentary on the design of a back-calculation anti-windup PID controller at an open-pool research reactor. The design and analysis was performed offline. The target for the control design was the reactors pre-existing qualified distributed control system, hence the control solution was limited in scope to the existing control block algorithms. This posed some technical constraints which are discussed. The continued relevance of PID control in larger scale industrial systems including safety systems is also discussed.