Date: 9 May 2025, Friday
Time: 4:30 pm
Venue: Room FYW-3316, City University of Hong Kong
Zoom Meeting ID: 899 0158 1173
Password: 123456
Speaker: Dr Jiapeng Xu, Hong Kong Polytechnic University
Multiobjective Complementary Control and Its Application to Mean-Field Games
Dr Jiapeng Xu, Hong Kong Polytechnic University
Abstract:This presentation introduces an interesting control design paradigm for linear time-invariant systems: multiobjective complementary control (MOCC), in which nominal performance and robustness can be achieved in a complementary way instead of a trade-off. In particular, a state-space solution is first established for a new stabilizing control structure consisting of two independently designed controllers coordinated with a Youla-type operator Q. It is then shown by performance analysis that these two independently designed controllers operate in a naturally complementary way for a tracking control system, due to the coordination function of Q driven by the residual signal of a Luenberger observer. An application of MOCC in robust mean-field games is presented. It is shown that the MOCC framework achieves a complementary mean-field control strategy, in contrast to the existing worst-case strategy.
Speaker’s Bio:Jiapeng Xu received the Ph.D. degree in control science and engineering at the East China University of Science and Technology, China, in 2021. He was a Postdoctoral Fellow with the University of Windsor, Canada, from September 2021 to July 2024, with the University of Victoria, Canada, from July 2024 to September 2024, and with the City University of Hong Kong, China, from October 2024 to January 2025. He is currently a Postdoctoral Fellow in the Department of Applied Mathematics, The Hong Kong Polytechnic University, China. His research interests include networked control, multiobjective complementary control, time-delay systems, and mean-field games.
Dr. Xu is an Associate Editor for International Journal of Control, Automation, and Systems. He received the Chinese Association of Automation (CAA) Outstanding Doctoral Dissertation Award in 2022.
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