PFC Topologies for AC to DC Converters in DC Micro-Grid

Rashad, M., Minhas, D. M., Ashraf, M. and Hussain, S. (2016) PFC Topologies for AC to DC Converters in DC Micro-Grid. In: 18th Mediterranean Electrotechnical Conference (MELECON), Limassol, Cyprus, 18-20 Apr 2016, ISBN 9781509000586 (doi: 10.1109/MELCON.2016.7495376)

123543.pdf - Accepted Version



With increasing dominance of renewable energy resources and DC household appliances, the novelty of DC micro grid is attracting significant attention. The key interface between the main supply grid and DC micro grid is AC to DC converter. The conventional AC to DC converter with large output capacitor introduces undesirable power quality problems in the main supply current. It reduces system efficiency due to low power factor and high harmonic distortion. Power Factor Correction (PFC) circuits are used to make supply currents sinusoidal and in-phase with supply voltages. This paper presents different PFC topologies for single phase AC to DC converters which are analyzed for power factor (PF), total harmonic distortion (THD) and system efficiency by varying output power. Two-quadrant shunt active filter topology attains a power factor of 0.999, 3.03% THD and 98% system efficiency. Output voltage regulation of the presented active PFC topologies is simulated by applying a step load. Two-quadrant shunt active filter achieves better output voltage regulation compared to other topologies and can be used as grid interface.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Hussain, Dr Sajjad
Authors: Rashad, M., Minhas, D. M., Ashraf, M., and Hussain, S.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Published Online:23 June 2016
Copyright Holders:Copyright © 2016 IEEE
First Published:First published in 18th Mediterranean Electrotechnical Conference (MELECON) Proceedings
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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