1. School of Electrical Engineering, Xi’an Jiaotong University, Xi’an, China
2. Department of Automation, Shanghai Jiao Tong University, Shanghai, China
3. Electric Reliability Council of Texas, Austin, TX, USA
4. Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, USA
5. Department of Management and Innovation Systems, University of Salerno, Fisciano, Italy