1. Energy Internet Engineering Research Center of Anhui Provincial Department of Education, Anhui Polytechnic University, Wuhu, People's Republic of China
2. School of Mathematics-Physics and Finance, Anhui Polytechnic University, Wuhu, People's Republic of China
3. College of Information Science and Technology, Donghua University, Shanghai, People's Republic of China
4. College of Science, Donghua University, Shanghai, People's Republic of China