1. School of Electronic, Electrical Engineering and Physics, Fujian University of Technology, Fuzhou 350108, China
2. Fujian Provincial University, Engineering Research Center of Smart Grid Simulation Analysis and Integrated Control, Fujian 350118, China
3. Department of Applied Intelligent Mechanical and Electrical Engineering, Yu Da University of Science and Technology, Miaoli County, Taiwan
4. Department of Business Administration, North Borneo University College, Sabah, Malaysia