1. College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing, China
2. School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, China
3. School of Mathematics, China University of Mining and Technology, Xuzhou, China
4. National Laboratory of Industrial Control Technology, Institute of Cyber-Systems and Control, Zhejiang University, Hangzhou, China
5. Science Program, Texas A&M University, Doha, Qatar