Instantaneous switch state fuzzy vector controller for 3-phase switch controlled rectifiers

Author

Hoffman, K.

Author_Institution

Res. Concentration in Electr. Energy, Queensland Univ. of Technol., Brisbane, Qld., Australia

Volume

1

fYear

1998

fDate

17-22 May 1998

Firstpage

524

Abstract

Conventional feedback control of a switch controlled 3-phase rectifier usually utilises PI control in the forward path. Studies have shown that fuzzy logic control (FLC) can provide advantages when power system and other parameters change in a nonlinear and nonpredictable way. In microprocessor control applications power semiconductor switching speeds are often limited by the microprocessor calculation times. This paper studies a method of simplifying the fuzzy control circuit and reducing the fuzzy logic calculation times

Keywords

control system synthesis; electric current control; feedback; fuzzy control; microcomputer applications; rectifying circuits; switching circuits; two-term control; 3-phase switch controlled rectifiers; PI control; coarse fuzzy logic control; current feedback; feedback control; instantaneous switch state fuzzy vector controller; microprocessor control applications; power semiconductor switching speeds; Control systems; Feedback control; Fuzzy control; Fuzzy logic; Microprocessors; Nonlinear control systems; Pi control; Power semiconductor switches; Power system control; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.701948

Filename

701948