Limit cycle approach for identification and control of processes

Abstract

The thesis is concerned with identification and control of single input single output SISO and two input two out TITI processes based on relay induced limit cycles A relay based on line identification method for stable and unstable SISO processes is proposed where the process model parameters are estimated from a single relay test An ideal relay in parallel with a proportional integral derivative PID controller induces a limit cycle oscillation whose frequency and amplitude are used for