2018 International Conference on Electrical Engineering, Control and Robotics (EECR 2018)
"Modeling and Control of Hysteresis Nonlinearities in Smart Actuators"
Prof. Chun-Yi Su, Concordia University, Canada
Abstract: Hysteresis nonlinearities are very common in magnetic materials, smart materials and industrial systems. For decades, the existence of such nonlinearities have provided one of the most difficult challenges to control design engineers since the entire Laplace domain and most state space control design techniques were developed exclusively for differentiable linear or nonlinear systems. Hence, the existence of hysteresis nonlinearities in smart material based actuators and systems were neglected and the controllers were designed based on the nominal smooth systems. When the systems are considered with non-differentiable nonlinearities, these methods encountered substantial difficulties in the analysis, model fitting and control design stages. It was extremely difficult, if not impossible, to design or prove stability of such systems. The development of techniques for the identification of such nonlinearities in realistic industrial plants has emerged as a significant problem in itself. This talk is intended to raise awareness of modeling and control techniques and to provide an opportunity to discuss state-of-the-art solutions for the problems. The presentation and discussion will range from modeling of hysteresis, to the design of corresponding control schemes, especially in the absence of complete information concerning the system model and state.
About: Dr. Chun-Yi Su received his Ph.D. degrees in control engineering from South China University of Technology in 1990. After a seven-year stint at the University of Victoria, he joined the Concordia University in 1998, where he is currently a Professor of Mechanical and Industrial Engineering and holds the Concordia Research Chair in Control. He has also held several short-time visiting positions including a Chang Jiang Chair Professorship by China's Ministry of Education and JSPS Invitation Fellowship from Japan, and Qian Ren Talents Professor from China. His research covers control theory and its applications to various mechanical systems, with a focus on control of systems involving hysteresis nonlinearities. He is the author or co-author of over 400 publications, which have appeared in journals, as book chapters and in conference proceedings. In addition to his academic activities, he has worked extensively with industrial organizations on various projects. Dr. Su has been an Associate Editor of IEEE Transactions on Automatic Control, IEEE Transactions on Control Systems Technology, Mechatronics, Control Engineering Practice, and several other journals. He has served as Chair/Co-Chair for numerous international conferences
"Smart City Infrastructure: Energy Management and Environment Monitoring"
Assoc. Prof. Quang Ha,
University of Technology Sydney, Australia
are emerging as a solution to global problems
associated with rapid urbanisation. The sustainable
management of energy, air quality, materials and
services in complex and evolving urban areas,
including megacities, is essential to provide a
healthy living environment for the city's
inhabitants. To better understand the energy
functioning and health of urban environments, this
keynote outlines the integration of sensor data
measures in order to optimise their synergies for
developing a digital virtual city model amenable to
real-time and interactive management and decision
making. By combining smart sensors, satellite
sensing and distributed control with The Internet of
Things, not only can we effectively improve energy
efficiency via integration diverse energy sources
into electricity grid, but also significantly reduce
emissions and monitor their complex interactions in
time and space. This will contribute towards new,
meaningful and useful urban-intelligence.
About: Quang Ha received the B.E. degree from Ho Chi Minh City University of Technology, Vietnam, in 1983, the Ph.D. degree from Moscow Power Engineering Institute, Russia, in 1993, and the Ph.D. degree from the University of Tasmania, Australia, in 1997, all in electrical engineering. He is currently an Associate Professor with School of Electrical and Data Engineering, Deputy Head of School (Research) of Mechanical and Mechatronic Engineering, University of Technology Sydney, Australia. His research interests include automation, robotics, control, and computational intelligence. Dr Ha is a Senior Member of the IEEE and on the Board of Directors of the International Association of Automation and Robotics in Construction. He has been a Member of the Editorial Board of the IEEE Transactions on Automation Science and Engineering (2009-2013), Automation in Construction, Mathematical Problems in Engineering, International Journal of Automation and Control, and Journal of Advanced Computational Intelligence and Intelligent Informatics. Quang Ha was the Chairman of 2 International Conferences on automation and intelligent systems. He was the recipient of 14 best paper awards from the IEEE, IAARC and Engineers Australia, including the Sir George Julius Medal in 2015.
Prof. May Huang, International Technological University, USA
About: Dr. May Huang is the chair of the Electrical and Computer Engineering Department and Director of Research and Development at ITU. She also serves as a professor at the School of Software and Microelectronics, Peking University (PKU) in China and invited professor for teaching at Tsinghua University as well as Beijing University of Post and Telecommunication. She leads research activities at ITU including a joint research team with members from ITU and PKU. Dr. Huang brings more than 20 years of Silicon Valley IC design and software design experience to ITU. She was a designer and project manager at VLSI Technology, Inc., Hitachi Semiconductor America, and Virtual Silicon Technology. She participated as a member of the working group and balloter on VITAL, Verilog and Analog Extensions of VHDL toward IEEE standard. Her research interests are low power IC design and methodology and artificial intelligence. Dr. Huang holds a bachelor's degree from the South China University of Technology, a master's degree from Santa Clara University and a doctorate from ITU, all in electrical engineering. She was the first PhD graduate at ITU completed under the supervision of ITU founder Dr. Shu-Park Chan.
"Covering Method in Stability Analysis and Controller Design of Switched Systems with Delays"
Prof. Xingwen Liu, Southwest Minzu University, China
Stability analysis and controller design are fundamental tasks in control theory. The most popular tool fulfilling such tasks is Lyapunov method. However, this method generally cannot achieve the desired results when delayed switched systems are considered. On this ground, alternative non-Lyapunov method, covering approach, is proposed to surmount the difficulties faced by Lyapunov method. The core lies in: By constructing a covering which covers the trajectories of switched systems starting from a specified region, the stability conclusion follows from the convergence to zero of the covering. With this framework, we can easily handle the problems of robust converge of nonlinear switched systems with delays and perturbations, stability and controller design of switched positive systems with unbounded delays, and stability and controller design of cascade switched nonlinear systems with bounded delays.
About:Dr. Xingwen Liu is a professor in the School of Electrical & Information Engineering, Southwest Minzu University. He is also an adjunct professor at Hunan University and the University of Electronic Science & Technology of China. Dr. Liu's research interest lies in control theory and control engineering, including switching systems, positive systems, stability of functional differential equations, and robust control. He has published about 50 papers in top journals and conferences, established some fundamental results such as necessary and sufficient asymptotic stability condition of delayed positive systems and necessary and sufficient exponential stability condition of cascade switched nonlinear systems with delays. He headed three projects from National Natural Science Foundation of China. He obtained support from several talent programs: New Century Excellent Talent Program of Ministry of Education of China, Leading Talent Plan of China National Civil Commission, and Sichuan Youth Science and Technology Prominent Talent. He is the leader of Sichuan Youth Science and Technology Innovation Research Team. As to professional services, Dr. Liu is currently serving as a general co-chair of the 6th International Conference on Positive Systems (POSTA2018), the electrical engineering section editor of the Journal of Engineering and Technology Research, and a member of Young Scientists Club of Chinese Institute of Electronics.
Prof. Yuhua Cheng, University of Electronic Science and Technology of China