1. School of Electrical and Control EngineeringNorth China University of Technology Beijing China
2. College of Information Science and TechnologyBeijing University of Chemical Technology Beijing China
3. College of AutomationHarbin Engineering University Harbin China
4. Advanced Control Systems Research Group at Institutde Robotical, CSIC‐UPCUniversitat Politecnica de Catalunya‐BarcelonaTech Barcelone Spain