1. Department of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL, USA
2. Smart Grid and Emerging Technology Department, Commonwealth Edison Company, Oakbrook Terrace, IL, USA
3. Research and Development Division, Hitachi America Ltd., Santa Clara, CA, USA
4. Eaton Research Lab, Golden, CO, USA
5. Department of Electrical and Computer Engineering, University of Georgia, Athens, GA, USA