报告题目: Novel Lyapunov-Type Functional for Robust Control of General Time-Varying Delay Stochastic Uncertain Systems
报 告 人：王胜国 教授(University of North Carolina at Charlotte,USA)
报告时间：2019年6月24日09:00-10:00
报告地点：南一楼中311
Abstract: Time-delay systems are so common in the areas of science and engineering, especially for remote control, where general time-varying delay stochastic uncertain systems are as broad and important because they cover other kinds of various time-delay systems as some special cases of them. When the general time-delay stochastic systems come as usual to have noises or Brownian motion as called Wiener Process, how to robustly control these systems is a tough challenge.
This seminar is to present a novel Lyapunov-type functional to effectively treat these general cases where the state derivative does not exist due to Brownian motion and the derivative of time-varying delay may be any bounded values, as well as the systems may have structural uncertainties, i.e., a difficult task as known in the literature. Based on this novel Lyapunov-type functional, the robust control method is further developed by applying singular value decomposition (SVD) to all structural uncertainties, then utilizing the slide mode control (SMC) and linear matrix inequality (LMI) for the controller design. The theoretical results are provided. Furthermore, the simulation of the literature examples demonstrates the correctness of the presented new methods, which outperform the existing methods.
Biosketch: Shengguo Wang received his BS and MS in EE from University of Science and Technology of China in Beijing 1967 and Hefei 1981, respectively, and PhD in ECE from University of Houston in 1994. He is currently a professor at University of North Carolina at Charlotte. He has published more than 100 refereed papers. He has been the PI for numerous various research projects since 1974. He has served as Associate Editor for several journals, and as Program Committee Member (more than 20 times) and Session Chair (more than 10 times) for international conferences.
Prof. Wang is a recipient of many academic awards, including 1978 China National Science Conference Award (one of the highest academic honor in China), US Fulbright Senior Scholar Award as Fulbright-PolyU Senior Scholar in HK 2016-17 (the flagship international educational exchange program in the world), British Council Scholar 1989-90, Sigma Xi Research Excellence Award (UH Chapter) 1994, Outstanding Faculty PVAMU 1997, Inventor for UNC Charlotte Invention 2001, and the 2015 US ``Sweet 16'' High Value Research Project Award, etc..
