Self-adaptive and self-tuning control of a nutrient film technique (NFT) system

Abstract There has been considerable interest during the past few years in the development of self-adaptive and self-tuning control methods for systems whose dynamic characteristics change over time. In this paper, we report the develoment of new approaches to adaptive control based on the Proportional-Integral-Plus (PIP) controller applied to Nutrient Film Technique (NFT) Systems used in glasshouse horticulture.