The Symmetrical Zig Zag Transformer for Harmonic Currents Reduction in Distribution Load Systems

Authors

  • Mohd Izhar A Bakar

Abstract

Non-linear loads in a three-phase three-wire system can cause distortion of line current and voltage waveform due to harmonic currents.  The analysis on harmonic currents shows that the dominant are 5th and 7th orders.  In increasing of harmonic currents in the power system will affect the power system performance.   An investigations on using symmetrical zigzag transformer technique to minimize harmonic currents 5th and 7th order are proposed. This technique is used in a three-phase three-wire system where it is mainly contaminated by negative sequence harmonics (e.g. 5th order) and positive sequence harmonics (e.g. 7th order) to be minimized.  The mechanism for minimizing the 5th and 7th order of harmonic currents in the electrical power distribution system is presented in this paper. An experimental results are presented to validate the proposed approach.

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Published

2020-05-10

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Section

Articles