Fuzzy-Tuning Current-Vector Control of a Three-Phase PWM Inverter for High-Performance AC Drives

Ying-Yu Tzou and Hsu-Yuan Lin

IEEE Trans. on Power Electronics, vol. 45, no. 5, pp. 782-791, Oct. 1998.

Index Terms: Current vector control, digital signal processor, fuzzy control, pulsewidth modulation inverter.


This paper proposes a new discrete fuzzy-tuning current-vector control (FTC) scheme for three-phase pulsewidth modulation (PWM) inverters. The proposed current control scheme can achieve fast transient responses and, at the same time, have very low total harmonic distortion in output current during steady-state operation. The proposed FTC scheme generates quasi-optimum PWM patterns by using a closed-loop control technique with instantaneous current feedback. The proposed FTC 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 inverters.

Power Electronics Systems & Chips Lab., Advanced Power Electronics Center

National Chiao Tung University, Hsinchu, TAIWAN.