NDLI: A simplified auto-connected electronic transformer (SACET) approach upgrades standard 6-pulse rectifier equipment with 12-pulse characteristics to facilitate harmonic compliance

Content Provider	IEEE Xplore Digital Library
Author	Moonshik Kang Enjeti, P.N. Pitel, I.J.
Copyright Year	1999
Description	Author affiliation: Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA (Moonshik Kang)
Abstract	In this paper, a simplified auto-connected electronic transformer (SACET) is proposed to upgrade standard 6-pulse rectifier equipment with 12-pulse characteristics. The SACET is an auto-connected high frequency transformer powered by a static converter. The system is connected in a shunt manner between the 6-pulse rectifier equipment and the utility. It is shown that SACET suitably alters the characteristic of the 6-pulse rectifier equipment to 12-pulse and achieves cancellation of 5/sup th/ and 7/sup th/ harmonics. In addition, 11/sup th/ and 13/sup th/ harmonic magnitudes are also significantly reduced. In the event that the SACET faults, the rectifier system characteristics revert to a 6-pulse. The per-unit rating of the SACET is 0.34 and its size and weight are related inversely to the switching frequency. The cancellation of 5/sup th/ and 7/sup th/ harmonics with the proposed approach is achieved entirely through open loop. Analysis and simulation of the proposed system along with a design example and experimental results from a 480 V, 10 kVA prototype system are presented.
Starting Page	199
Ending Page	204
File Size	458051
Page Count	6
File Format	PDF
ISBN	0780354214
ISSN	02759306
DOI	10.1109/PESC.1999.789003
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-07-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rectifiers Power harmonic filters IEC standards Active filters Windings Power system harmonics Frequency conversion Static power converters Pulse transformers Power electronics
Content Type	Text
Resource Type	Article

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