1. State Grid Zhejiang Electric Power Company Ningbo Bureau, Zhejiang, China
2. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
3. Instituto de Telecomunicações, Aveiro, Portugal
4. School of Aerospace, Transport and Manufacturing, Cranfield University, Cranfield, U.K.
5. Faculty of Engineering and Applied Science, Memorial University, Newfoundland, St. John’s, NL, Canada