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Analysis and design on the reduction of DC-link electrolytic capacitor for AC/DC/AC converter applied to AC motor drives

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2 Author(s)
Wen-Song Chien ; Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Ying-Yu Tzou

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

Published in:

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE  (Volume:1 )

Date of Conference:

17-22 May 1998