A fuzzy set theory based control of a phase-controlled converter DC machine drive

Author

Sousa, Gilberto C D ; Bose, Bimal K.

Author_Institution

Dept. of Electr. Eng., Tennessee Univ., Knoxville, TN, USA

fYear

1991

fDate

Sept. 28 1991-Oct. 4 1991

Firstpage

854

Abstract

A description is presented of the application of fuzzy logic in a speed control system that uses a phase-controlled bridge converter and a separately excited DC machine. The fuzzy control is used to linearize the transfer characteristics of the converter in the discontinuous conduction mode occurring at light load and/or high speed. The fuzzy control is then extended to the current and speed control loops replacing the conventional proportional-integral (PI) control method. The compensation and control algorithms have been developed in detail and verified by digital simulation of a drive system. The simulation study indicates the superiority of fuzzy control over the conventional control methods. Fuzzy logic seems to have a lot of promise in the application of power electronics.<>

Keywords

DC motors; compensation; electric drives; fuzzy set theory; phase control; bridge converter; compensation; control algorithms; digital simulation; discontinuous conduction mode; fuzzy logic; fuzzy set theory; high speed; light load; phase-controlled converter DC machine drive; speed control system; transfer characteristics; Bridges; Control systems; DC machines; Digital simulation; Fuzzy control; Fuzzy logic; Fuzzy set theory; Pi control; Proportional control; Velocity control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE

Conference_Location

Dearborn, MI, USA

Print_ISBN

0-7803-0453-5

Type

conf

DOI

10.1109/IAS.1991.178338

Filename

178338