1. Institute for Control Engineering and Automation, Hanoi University of Science and Technology, Hai Ba Trung, Hanoi, Vietnam
2. School of Electrical & Electronic Engineering, Hanoi University of Science and Technology, Hai Ba Trung, Hanoi, Vietnam
3. Faculty of Electrical and Electronic Engineering, Hung Yen University of Technology and Education, Hai Duong, Vietnam
4. Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan