1. Oak Ridge National LaboratoryOne Bethel Valley Road, P.O. Box 2008MS 6007Oak RidgeTN37831USA
2. Global Energy Interconnection Research Institute North America (GEIRINA)250W, Tasman DrSan JoseCA95134USA
3. Department of Electrical Engineering and Computer Science (EECS)The University of TennesseeKnoxville, 1520 Middle Dr.KnoxvilleTN37996USA