学术报告第201814期

报告题目：Consensus-based distributed energy management and resilient optimization against adversary attacks

报告人：赵成成

报告时间：2018年5月14日 上午9:00—10:30

报告地点：南一楼中311

报告摘要：In this talk, we first investigate the problem of distributed energy management for both generation and demand sides in smart grids. Different from existing works, a non-convex social welfare maximization problem is formulated for a problem, we transform it as a new convex optimization problem and then derive a sufficient condition to guarantee that both problems have the same optimal solution. Considering directed communication, we propose a consensus-based algorithm to solve the problem in a distributed way and prove its convergence and optimality. Secondly, we explore the effect of adversary attacks on the consensus optimization and design a resilient algorithm. We relax the assumption that the maximum number of tolerable attacks is strictly limited by the network connectivity and then propose a novel resilient algorithm. The proposed algorithm exploits trusted agents which cannot be compromised by adversary attacks and form a connected dominating set in the original graph to constrain effects of adversary attacks. It is shown that local variables of all normal and trusted agents achieve consensus under the proposed algorithm. Further, we find that the final solution belongs to the convex set of minimizers of the weighted average of all trusted agents’ local functions. Numerical results demonstrate the effectiveness of the proposed algorithms.

报告人简介：Chengcheng Zhao received her B.E. degree in Measurement & Control Technology and Instrument from Hunan University, Changsha, China, in 2013. She is currently a PhD candidate at the College of Control Science and Engineering, Zhejiang University, Hangzhou, China. Her research interests include distributed computation and optimization in multi-agent networks, distributed energy management and synchronization in smart grids, and security and privacy in network systems. She received IEEE PESGM 2017 best conference papers award, and one of her paper was shortlisted in IEEE ICCA 2017 best student paper award finalist. She also received the National Scholarship for PhD student in 2017. She is a peer reviewer for Automatica, IEEE Transactions on Information Forensics and Security, IEEE Journal on Selected Areas in Communications, IEEE Transactions on Industrial Electronics and etc. She was the Technical Program Committee Member for IEEE Global Communications Conference (GLOBECOM) 2017 and IEEE International Conference on Communications (ICC) 2018.