ABSTRACT
This paper is about design and analysis of Multi-Model PI and PI controller for a non-linear system. The system chosen is a benchmark system, Interacting Two Tank Hybrid System (ITTHS) which is a non-linear system with variable area tanks and interaction between the tanks. The PI and Multi-Model PI controllers are tuned using ZN-Closed loop method. The efficacy of the Multi-Model PI and PI has been validated on this benchmark process, Interacting Two Tank Hybrid System (ITTHS).
