Efficiency Comparison of Alternating Current (AC) and Direct Current (DC) Distribution System at Residential Level with Load Characterization and Daily Load Variation: Efficiency Comparison of Alternating Current (AC) and Direct Current (DC) Distribution System

Hasan Erteza  Gelani; Mashood  Nasir; Faizan  Dastgeer; Haseeb  Hussain

Authors

Hasan Erteza Gelani Department of Electrical Engineering, University of Engineering and Technology Lahore, Faisalabad Campus, Faisalabad, Pakistan
Mashood Nasir Department of Electrical Engineering, Lahore University of Management Sciences, Syed Babar Ali School of Science and Engineering, opposite Sector U, Defence Housing Authority, Lahore 54792, Pakistan
Faizan Dastgeer Department of Electrical Engineering, University of Engineering and Technology Lahore, Faisalabad Campus, Faisalabad, Pakistan
Haseeb Hussain Department of Electrical Engineering, University of Engineering and Technology Lahore, Faisalabad Campus, Faisalabad, Pakistan

Keywords:

AC, DC, efficiency, residential, load categories, load variation

Abstract

The war of currents between alternating current (AC) and direct current (DC) is decades old. The DC has proved itself in the fields of generation and transmission; now it is making its way at distribution level in quite an efficient fashion. The DC seems to be challenging the AC, as a result of efficient DC to DC as well as to and from AC conversion with the development of efficient power electronic converters. This paper presents efficiency comparison of the two paradigms for a residential colony. The model is separately simulated for AC and DC supply from the grid keeping the infrastructure for both schemes unchanged. The residential loads are divided in to three categories depending upon their supply requirements. The loads are further classified according to their time of usage during the whole day. The efficiency comparison between AC and DC system is established on the basis of daily load variation.

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Efficiency Comparison of Alternating Current (AC) and Direct Current (DC) Distribution System at Residential Level with Load Characterization and Daily Load Variation