1. Department of Electrical and Electronic EngineeringThe University of Hong KongHong Kong SARPeople's Republic of China
2. School of Electrical and Computer ScienceWashington State UniversityPullmanWAUSA
3. Grid Operations ProgramElectric Power Research InstitutePalo AltoCA94304USA
4. Electrical Engineering and Computer Science DepartmentSouth Dakota State UniversityBrookingsSDUSA