Comparison of Effects on Three Phase Supply due to Linear and Nonlinear Loads

Abstract

Grid connected 3-phase 4-wire electrical distribution networks are commonly utilized by
industrial and commercial consumers for their high authoritative ordinance of electrical
energy. This type of distribution system faces many issues cognate to power quality like
harmonics, reactive power, unbalanced load and extortionate neutral current due to Linear
and nonlinear loads. This paper analyzes the effects of different loads on the supply grid so
as to amend the potency quality in 3-phase 4-wire electrical distribution system. An
incrementing non-linear load in the potency sector causes different unwanted effects and
harmonic issues. Industrial and domestic consumers use power electronic contrivances and
many non-linear loads. These contrivances draw more non-linear current from the AC mains
than of traditional loads like motors, refrigerators and heating elements. This causes
distortion of potency supplied to consumers. The performance of the loads and power supply
effect demonstrated utilizing MATLAB simulation.