Stability checking of a real digital control system with a neuro-fuzzy PD-controller

Author

Piegat, Andrzej

Author_Institution

Inst. of Comput. Sci. & Eng., Tech. Univ. of Szczecin, Szczecin, Poland

fYear

1997

fDate

1-7 July 1997

Firstpage

512

Lastpage

518

Abstract

Technical regulations in many countries require stability proof for control systems. Neuro-fuzzy (nf-) controllers realize strongly nonlinear input/output mappings. Therefore they make the stability checking very difficult what hampers their implementation in the practice. The paper presents a systematic method for stability proof basing on hyperstability theory of Popov applied for a digital control system of the underwater vehicle. Owing to considerable reduction of the analytical part of the proof the method is relatively easy, understandable and practical. It allows strict stability proof of fuzzy MIMO-control systems.

Keywords

MIMO systems; PD control; Popov criterion; digital control; fuzzy control; neurocontrollers; nonlinear control systems; stability; underwater vehicles; Popov hyperstability theory; digital control system; fuzzy MIMO-control system; neuro-fuzzy PD-controller; nonlinear input-output mapping; stability checking; stability proof; underwater vehicle; Aerospace electronics; Control systems; Numerical stability; Propellers; Stability criteria; Transfer functions; fuzzy control; intelligent control; stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 1997 European

Conference_Location

Brussels

Print_ISBN

978-3-9524269-0-6

Type

conf

Filename

7082146