1. School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China
2. Rundian Energy Science and Technology Company Ltd., Zhengzhou, Henan, China
3. State Key Laboratory of Power Systems, Department of Energy and Power Engineering, Tsinghua University, Beijing, China
4. Mechatronics, Embedded Systems and Automation (MESA) Lab, Department of Mechanical Engineering, School of Engineering, University of California, Merced, CA, USA