Yamin Yan

Research Assistant Professor

Hong Kong University of Science and Technology

Yamin Yan received the B.E. degree from Wuyuzhang Honorary College, Sichuan University, China, in 2013, and the Ph.D. degree from the Chinese University of Hong Kong (CUHK), Hong Kong, in 2017. She worked as a Research Associate with the University of Newcastle, Australia, from 2018 to 2021. She is currently a Research Assistant Professor at the Hong Kong University of Science and Technology and an adjunct lecturer at the University of Newcastle. Her research interests include networked systems and control.  She is a recipient of the 2019 Future Women Leaders Conference Award by Monash University, Australia, 2019 IEEE International Conference on Control and Automation (ICCA) Best Paper Finalist, and 2017 CUHK Faculty Outstanding Tutors Award.  She served as the Publication Chair of the 11th International Conference on Intelligent Robotics and Applications and hosted multiple invited sessions in international conferences such as IEEE Conference on Decision and Control. 

Autonomous synchronization of heterogeneous multiagent systems & Cooperative output regulation of discrete-time linear time-delay multi-agent systems

This article formulates a new type of synchronization problem for heterogeneous multiagent systems (MASs), called autonomous synchronization. In this problem, neither the synchronized agent dynamics nor the synchronized states are specified a priori, instead, they are autonomously determined by the inherent properties and the initial states of agents, thus providing an MAS with more degrees of adaptability and higher synchronization efficiency. To achieve autonomous synchronization, a novel dynamics update law and a synchronizing control law are proposed and the sufficient solvability conditions are explicitly revealed. The results are supported by rigorous theoretical analysis and numerical simulation, in both continuous-time and discrete-time settings. 

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In this paper, we study the cooperative output regulation problem for the discrete linear time-delay multi-agent systems by distributed observer approach. In contrast with the same problem for continuous-time linear time-delay multi-agent systems, the problem has two new features. First, in the presence of time-delay, the regulator equations for discrete-time linear systems are different from those for continuous-time linear systems. Second, under the standard assumption on the connectivity of the communication graph, a distributed observer for any continuous-time linear leader system always exists. However, this is not the case for the discrete counterpart of the distributed observer for the continuous-time systems. We will propose another type of discrete distributed observer. It turns out that such an observer always exists under some mild assumptions. Using this result, we further present the solvability conditions of the problem by distributed dynamic output feedback control law.