Speaker 1
Professor Dr. Mohd Shakir Md Saat
Albukhary International University / Universiti Teknikal Malaysia Melaka
Keynote Title
Controller Synthesis for Capacitive Power Transfer Technologies
Abstract – The capacitive power transfer (CPT) systems have attracted considerable attention from the researchers of the field due to its advantages of transferring power wirelessly through a metal barrier. This provides a great solution to the problem that is experiencing by an inductive approach. However, the CPT system suffers from low efficiency because of the change in plates distance and misalignment condition. These two events are practically common to the CPT system. Hence, researchers have devoted their time to improving efficiency despite the change in the mentioned conditions. Several solutions have been provided to improve the efficiency of such system in the framework of impedance matching techniques and self-tuning control strategies. Despite many results available, the problem persists, and each of the proposed methods suffers from its conservatism. Therefore, this work focuses on designing the controller based on the state-space approach. Unlike the self-tuning strategies, which are commonly associated with the online tuning approach, our proposed approach provided an offline control strategy. We first establish the mathematical model of such a CPT system using a state-space approach. Then the proposed mathematical is validated using MATLAB/SIMULINK to confirm that the characteristics of the output system are accurate. This is compared with the simulation output of the CPT system itself. Once the mathematical model of the CPT system is obtained, the state-feedback controller is designed accordingly using the pole-placement technique. The simulation results have confirmed that the proposed method was able to stabilize the system well despite the change in the parameter of the CPT system. The future focus of this work is to design a robust controller for the system so that any particular changes in the CPT parameters can be controlled well and therefore improving the output efficiency of such a system.
Biography
Professor Dr. Mohd Shakir Md Saat was born in Kedah, Malaysia in 1981. He obtained his bachelor degree in Electrical Engineering from Universiti Teknologi Malaysia and Master in Electrical Engineering from the same university in 2002 and 2006, respectively. Furthermore, he obtained his PhD in Electrical Engineering from The University of Auckland in the field of nonlinear control theory in 2013. He started his carrier as a lecturer at Universiti Teknikal Malaysia Melaka in 2004. He was appointed as a Head of Department, Deputy Dean (Academic) and Dean of Faculty of Electronics and Computer Engineering in 2014, 2015 and 2018, respectively. He was promoted to Associate Professor in 2016. In August 2020, he was seconded to Albukhary International University as a Professor and Director of Admission and Academic Management Department.
His research interest is on nonlinear systems control theory and wireless power transfer technologies. He has published one monograph (published by Springer Verlag) on polynomial control systems and more than 50 journals and primarily published in the high-quality journal such as The Journal of the Franklin Institute, International Journal of Robust and Nonlinear Control, IET Control, etc. More than 20 conference papers have also been published and most of them are in the framework of nonlinear control theory and wireless power transfer technologies. He is also appointed as a reviewer for IEEE Transaction journals, The Journal of System Science, The Journal of the Franklin Institute, International Journal of Robust and Nonlinear Control, Circuit, systems and signal processing, Energies, Sensors and many more.
Speaker 2
Professor Dr. Yoshiyuki Fujino
Toyo University
Keynote Title
History of Rectenna and Microwave Power Transmission Technology and Japanese Regulatory Trends on WPT
Abstract – Power transmission using microwaves has been considered for a long time, but since it is a system that handles radio waves, there is a delay in the recent trend of practical application of wireless power transmission, which was preceded by magnetic and electric field coupling type. However, the practical application of power transmission using microwaves such as Ossia and Energios is being carried out mainly in the United States, discussions on regulation have begun in Japan as well, and practical application is imminent. In this paper, we will give an overview of the history of power transmission using microwaves and summarizes the regulatory trends in Japan.
Biography
Professor Dr. Yoshiyuki Fujino received M.S. and Ph.D. degrees in electrical engineering from Tohoku University, Sendai, Japan, in 1989 and 1999, respectively. Since 1989, he had been working at the Communications Research Laboratory (CRL), now the National Institute of Information and Communications Technology (NICT). He had been moved ATR Adaptive Communications Research Laboratory in 1997 to 2000. In 2000, he returned to NICT, In 2003, he temporary moved to Council fo Science and Technology Policy of Cabinet Office, Japan. In 2004, he returned to NICT. In 2013, he moved to Toyo University. He is currently a professor at Toyo University.
He has been engaged research on numerical analysis of antenna characteristics and microwave power transfer technology for stratospheric radio relay systems. He engaged experiment of Microwave Lifted Airplane Experiment (MILAX) demonstration for development of rectenna array. He also has been researching communications systems between helicopters and satellites, as well as evaluations of large deployable antenna in orbit mounted on Engineering Test Satellite VIII (ETS-VIII) and satellite/terrestrial integrated mobile communication systems.
He received the Young Scientist Award, Communications Society: Excellent Paper Award and Educational Service Award in 1995, 2016 and 2019, respectively, from the Institute of Electronics, Information and Communication Engineers (IEICE) of Japan.
He was former chair of Technical Committee on Wireless Power Transmission (WPT) of IEICE (2012-2014). Now he is chief of wireless power transfer working group of Ministry of Internal affair and Communications (MIC).