S. Saetieo et Da. Torrey, FUZZY-LOGIC CONTROL OF A SPACE-VECTOR PWM CURRENT REGULATOR FOR 3-PHASE POWER CONVERTERS, IEEE transactions on power electronics, 13(3), 1998, pp. 419-426
This paper presents a fuzzy logic implementation of space-vector pulse
-width modulation (PWM) for three-phase power converters. The conventi
onal space-vector PWM current regulator implementation is generally co
mputationally complex. The fuzzy logic controller implementation relie
ves the processor of a number of computations, thereby accommodating a
less expensive microprocessor, The ac-side rectifier voltages are use
d as fuzzy-state variables. The fuzzy logic control has two outputs: m
agnitude and angle of reference voltage. Both conventional space-vecto
r PWM and the fuzzy logic controller are implemented to evaluate perfo
rmance using a 16-b microcontroller (68HC16), Experimental results are
provided for both controllers at the same operating point, where the
power drawn by the load is about 3 kW, The fuzzy logic controller redu
ces the computational burden on the processor by about 30%.