FUZZY-TUNING CURRENT-VECTOR CONTROL OF A 3-PHASE PWM INVERTER FOR HIGH-PERFORMANCE AC DRIVES

This paper proposes a new discrete fuzzy-tuning current-vector control (FTC) scheme for three-phase pulsewidth modulation (PWM) inverters. T he proposed current control scheme can achieve fast transient response s and, at the same time, have very low total harmonic distortion in ou tput current during steady-state operation. The proposed FTC scheme ge nerates quasi-optimum PWM patterns by using a closed-loop control tech nique with instantaneous current feedback. The proposed PTC scheme has been realized using a single-chip digital signal processor (TMS320C14 ) from Texas Instruments. Experimental results are given to verify the proposed fuzzy-tuning current control strategy for three-phase PWM in verters.