Title :
Instantaneous switch state fuzzy vector controller for 3-phase switch controlled rectifiers
Author_Institution :
Res. Concentration in Electr. Energy, Queensland Univ. of Technol., Brisbane, Qld., Australia
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;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.701948
