Memory‐based IMC tuning of PID controllers for nonlinear systems

This paper describes a new memory-based proportional, integral, derivative (PID) controller design. These PID parameters are tuned by the IMC-PID method, which is derived from the relationship between the internal model control (IMC) and PID control. The IMC-PID has a user-specified parameter that greatly influences the control performance. The authors have already proposed a system identification scheme based on the memory-based approach. In this paper, a new controller design scheme is discussed, whose system parameters and the corresponding suitable user-specified parameter are simultaneously computed. Finally, the behavior of the newly proposed control scheme is examined in a simulation example. © 2006 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.