Harmonic Reduction by Shunt Active Filter in a Transformer LT Distribution Network

Harmonic Reduction by Shunt Active Filter in a Transformer LT Distribution Network

Atul Choudhary 1, Dr Shailendra Verma2, Sujit Kumar Singh 3 Deepak Baghel 4

1 M- Tech Scholar, EE Department, CCET, CSVTU BHILAI, C.G

2Head of Department, EE Department, CCET, CSVTU BHILAI, C.G

3 M- Tech Scholar, EE Department, CCET, CSVTU BHILAI, C.G

4 M- Tech Scholar, EE Department, CCET, CSVTU BHILAI, C.G

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Abstract – This paper is about the modelling of a power distribution network in which nonlinear loads are also placed for the generation of harmonics. Now a day’s various electronic variable drives and other devices that generates harmonics are extensively used by the commercial and industrial consumers. The amount of harmonics generated by a single device is negligible but if the devices are in a large numbers that will make a considerable impacts at the point of common coupling. Several problems occur in the system like sag swell, voltage flicker, unwanted heating of the instruments or the circuit in which the devices connected so this becomes an important issue to resolve. In this a shunt active filter has been modelled with the system for the reduction of harmonics in a permissible limit. IEEE set up the standards for the harmonic limitations and the baseline standards has to follow strictly for all the industrial and commercial consumers.

Key Words:  Total harmonic distortion, non-linear loads, distribution transformer, linear-loads, SAPF shunt active power filter, Phase control, Harmonics reduction, nonlinear loads, and PCC point of common coupling