Title: Investigation into the compatibility and effectiveness of a new mathematical online voltage sag index

Authors: Alexis Polycarpou, Hassan Nouri

Addresses: Frederick University, 7, Y. Frederickou Str., Pallouriotisa, Nicosia 1036, Cyprus. ' Power Systems and Electronics Research Group, University of the West of England, Bristol, UK

Abstract: A new mathematical index is investigated in this paper which improves the power quality of a system through providing a tool for online voltage sag mitigation. The index is developed mathematically and applied on transmission and distribution networks. Furthermore, it is verified for its compatibility through the use of a tap changing transformer scheme. Two loading variation scenarios, consisting of induction motors are investigated for each type of network, in order to establish the effectiveness and accuracy of the index.

Keywords: voltage sag; induction motors; tap changer; mathematical index; power quality; transmission networks; distribution networks; loading variation.

DOI: 10.1504/IJPEC.2010.030860

International Journal of Power and Energy Conversion, 2010 Vol.2 No.1, pp.46 - 58

Published online: 10 Jan 2010 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article