Power Quality Enhancement by DC Distribution

Elizabeth Cherian, Bindu G. R.,P. S. Chandramohanan Nair



Most of the electric equipment used in residential buildings operate with electric energy in the form of direct current (dc) in their internal circuits. The advent of many modern equipment in residential buildings which operate on dc has necessitated an in-depth study of their impact on
the distribution system. This paper presents an analysis of the performance of distribution system if these appliances are directly supplied by dc. As a part of this investigation a prototype conventional alternating current (ac) distribution system is analysed for different combinations of utility and load conditions by simulation. A hybrid ac-dc distribution network with minimum conversion stages is proposed.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ),Vol. 1, Nº. 14
Pages:791-795 Date of Publication: 2016/5/20
ISSN: 2172-038X Date of Current Version:2016/5/4
REF:454-16 Issue Date: May 2016
DOI:10.24084/repqj14.454 Publisher: EA4EPQ

Authors and affiliations

Elizabeth Cherian(1),Bindu G.R(2), P.S. Chandramohanan Nair(3)
1. Department of Electrical Engineering, Govt. Engineering College Wayanad. Kerala.India
2. Department of Electrical Engineering, College of Engineering Trivandrum. Kerala. India
3. V K College of Engineering & Technology, Parippally, Kerala. India

Key words

Harmonics, Total harmonic distortion, Rectifier, DC distribution.


[1] A. Sannino, G. Postiglione, and M. Bollen, “Feasibility of a dc network for commercial facilities,” Industry Applications, IEEE Transactions on, vol. 39, pp. 1499–1507, Sept 2003.
[2] K. Engelen, E. Leung Shun, P. Vermeyen, I. Pardon, R. D’hulst, J. Driesen, and R. Belmans, “The feasibility of small-scale residential dc distribution systems,” in IEEE Industrial Electronics, IECON - 32nd Annual Conference on, pp. 2618–2623, Nov 2006.
[3] F. Wicks, “Evaluating alternatives for integrating distributed dc generation with ac power systems,” in Energy Conversion Engineering Conference and Exhibit, (IECEC) 35th Intersociety, vol. 2, pp. 763– 766 vol.2, 2000.
[4] P. Wang, X. Liu, C. Jin, P. Loh, and F. Choo, “A hybrid ac/dc microgrid architecture, operation and control,” in Power and Energy Society General Meeting, IEEE, pp. 1–8, July 2011.
[5] J. S. Park, J.-H. Choi, B.-G. Gu, and I.-S. Jung, “Feasibility study of dc electrical distribution system,” in Power Electronics and ECCE Asia (ICPE ECCE), IEEE 8th International Conference on, pp. 2935–2938, May 2011.
[6] M. Starke, L. Tolbert, and B. Ozpineci, “Ac vs. dc distribution: A loss comparison,” in Transmission and Distribution Conference and Exposition, IEEE/PES, pp. 1–7, April 2008.
[7] D. Hammerstrom, “Ac versus dc distribution systems did we get it right?,” in Power Engineering Society General Meeting, IEEE, pp. 1–5, June 2007.
[8] C. Xu and K. Cheng, “A survey of distributed power system; ac versus dc distributed power system,” in Power Electronics Systems and Applications (PESA), 4th International Conference on, pp. 1–12, June 2011.
[9] S. S. H. W. B. Roger C. Dugan, Mark F. McGranaghan, Electrical Power systems Quality. Tata McGraw Hill Education Private Limited, third ed., 2012.
[10] M. M. Enrique Acha, Power systems Harmonics, Computer modelling and Analysis. John Wiley and Sons, Ltd, second ed., 2001.
[11] IEEE Recommended Practices and Requirements for Harmonic Control in Electric Power Systems IEEE Std 519-1992.
[12] T. M. U. Ned Mohan, Power Electronics Converters, Applications and Design. John Wiley and Sons, Ltd, third ed., 2001.
[13] M. H. Rashid, Power Electronics Circuit Devices And Applications. John Wiley and Sons, Ltd, second ed., 2001.