Upec 2003, 38Th International Universities' Power Engineering Conference, Date: 1 September 2003 through 3 September 2003, Location: Thessaloniki, Sponsors: Ministry of Macedonia;Aristotle University of Thessaloniki, Thessaloniki, Greece;Insitiute of Electrical Engineers, IEE;Institute of Electrical and Electronic Engineers, IEEE;Technical Chamber of Greece, TCG