Strongly stable GPC-based PID controller
by T. Sato
International Journal of Advanced Mechatronic Systems (IJAMECHS), Vol. 1, No. 3, 2009

Abstract: This paper proposes a new method for designing a self-tuning PID controller. A PID controller is designed on the basis of generalised predictive control with a terminal matching condition (γGPC) to automatically tune its PID parameters. The proposed PID controller has a time-varying proportional gain to precisely achieve γGPC performance. Furthermore, a PID controller is designed on the basis of γGPC extended by using coprime factorisation to obtain stable proportional gain. Hence, γGPC can be well approximated by the proposed PID controller. A numerical example demonstrates its effectiveness.

Online publication date: Fri, 13-Feb-2009

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