Title :
Analysis and design on the reduction of DC-link electrolytic capacitor for AC/DC/AC converter applied to AC motor drives
Author :
Chien, Wen-Song ; Tzou, Ying-Yu
Author_Institution :
Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
This paper presents the design of a three-phase quasi-direct AC/DC/AC converter with minimum energy storage in the DC-link capacitor. The proposed digital control scheme can achieve unity power factor, lower current distortion on the utility side, and fast response to DC-link voltage regulation. A power balancing control scheme is used to minimize the required DC-link capacitor. The design procedure of the proposed method, accompanied with given simulation results, has been described
Keywords :
AC motor drives; AC-AC power convertors; AC-DC power convertors; DC-AC power convertors; capacitor storage; digital control; electric current control; power control; power factor; voltage control; AC motor drives; AC/DC/AC converter; DC-link electrolytic capacitor; current control; digital control; lower current distortion; minimum energy storage; power balancing control; three-phase quasi-direct AC/DC/AC converter; unity power factor; voltage control; AC-DC power converters; Analog-digital conversion; Capacitors; Circuits; Current control; Energy storage; Power system harmonics; Reactive power; Rectifiers; Voltage;
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.1998.701911
