NDLI: A study on zero-passing transformer in harmonics reduction

Content Provider	IEEE Xplore Digital Library
Author	Hadzer, C.M. Masri, S. Mahamad, N.
Copyright Year	2003
Description	Author affiliation: Power Res. Group, Univ. Sains Malaysia, Nibong Tebal, Malaysia (Hadzer, C.M.; Masri, S.; Mahamad, N.)
Abstract	In this paper, a simple and practical approach to minimize the zero-sequence current harmonics in 3-phase 4-wire power distribution system is proposed. The zero-sequence current harmonic is minimized by using a very low zero-sequence impedance transformer. The very low zero-sequence impedance transformer is shunt connected to the load. Besides having very low zero-sequence impedance, this transformer also has very high both positive and negative sequence impedances. Thus, the zero-passing transformer has no effect on the positive and negative sequence harmonics. Because not all the harmonic can be reduced by zero-passing transformer, the LC filter is provided to cancel the entire harmonic. This LC filter is also shunt connected to the load. The dominant zero-sequence harmonic that is 3/sup rd/ harmonic current, which is generated by the load, will flow through the shunt load connected transformer and other harmonics current will flow through the LC filter. The practical excellency and validity of reduction technique are demonstrated experimentally.
Starting Page	180
Ending Page	184
File Size	1258890
Page Count	5
File Format	PDF
ISBN	0780382080
DOI	10.1109/PECON.2003.1437440
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-12-15
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power harmonic filters Power system harmonics Frequency Impedance Voltage Conductors Solid state circuits Power engineering and energy Active filters Power distribution
Content Type	Text
Resource Type	Article

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