PID control for nonlinear discretized systems

Author

Okuyama, Yoshifumi

Author_Institution

Humanitech Lab. Co., Ltd., Tottori

fYear

2007

fDate

17-20 Sept. 2007

Firstpage

116

Lastpage

119

Abstract

This paper describes the robust stability and PID control for discrete-time and discrete-value (discretized/quantized) systems. Although all control systems are currently realized by discretized signal, the analysis and design of that type of control systems has not been elucidated. In this paper, the robust stability of discrete-time and discrete-value control systems that accompany discretizing units on the input and output sides of a nonlinear element are examined, and a designing (stabilizing) method of PID control for nonlinear discretized systems is proposed based on the modified Nichols diagram. Numerical examples are shown using two types of PID control scheme.

Keywords

discrete time systems; nonlinear control systems; robust control; three-term control; PID control system; discrete-time control system; discrete-value control system; modified Nichols diagram; nonlinear discretized system; robust stability; Actuators; Control systems; Digital control; Laboratories; Neodymium; Nonlinear control systems; Robust stability; Signal analysis; Signal design; Three-term control; Nonlinear control systems; PID control; discrete-time systems; discretization; modified Nichols diagram; robust stability;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE, 2007 Annual Conference

Conference_Location

Takamatsu

Print_ISBN

978-4-907764-27-2

Electronic_ISBN

978-4-907764-27-2

Type

conf

DOI

10.1109/SICE.2007.4420961

Filename

4420961