1. School of Electrical and Information Engineering, Jiangsu University,Zhenjiang,China,212013
2. Electrical Power Group, School of Engineering, Newcastle University,Newcastle Upon Tyne,United Kingdom,NE1 7RU
3. Durham University,Department of Engineering,Durham,United Kingdom,DH1 3LE
4. Northumbria University,Department of Mechanical and Construction Engineering,Newcastle upon Tyne,United Kingdom,NE1 8ST