[1] Univ N Carolina, Charlotte, NC 28223 USA
[2] Monash Univ, Clayton, Vic, Australia
[3] Univ Texas Arlington, Dept Elect Engn, Arlington, TX 76019 USA
[4] Univ Texas Arlington, Energy Syst Res Ctr, Arlington, TX 76019 USA
[5] BC Hydro & Power Author, Vancouver, BC V6B 5R3, Canada
[6] Kansas State Univ, ECE Dept, Manhattan, KS 66506 USA
[7] Tech Univ Denmark, Ctr Elect Power & Energy, Dept Elect Engn, Roskilde, Denmark
[8] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA
[9] Univ Calgary, Dept Elect & Comp Engn, Calgary, AB T2N 1N4, Canada