REDUCTION OF HARMONIC DISTORTION IN 40MVA 132/33KV POWER TRANSFORMER USING PASSIVE FOURIER FILTERING TECHNIQUE

Subject Area: Engineering

This paper presents the reduction of harmonic distortion in power transmission system using passive Fourier filtering technique The aim was to minimize the percentage of harmonic on the 19 bus, 40MVA, 132/33KV Abuja injection feeder. This method is characterization of the feeder to determine the harmonic percentage which is 6.0277 and did not satisfy the International Electrical Electronics Engineering (IEEE) requirements for harmonic tolerance in power transmission system. To solve the problem, Fourier passive filter was developed and then implemented on the power system using Simulink. The result showed that voltage harmonic was reduced to 0.82% after validation. The result when integrated on the 19bus feeder injection system showed that the average harmonic was 4.943 which is good as it satisfied the IEEE standard. The results when comparatively analyzed showed that with the passive filter, the percentage mitigation of harmonic achieved is 17.99%.