报 告 人 Prof. Dr. Victor Sreeram
School of Electrical, Electronic,
& Computer Engineering, University of Western Australia.
题 目 Frequency Weighted Model Reduction Techniques
时 间 2017年12月12日10：00—10：50
地 点 延长校区Ⅳ103
主办单位 上海大学机自学院自动化系
摘要
Deriving a reasonable mathematical model is fundamental to the analysis and design of a dynamic system. In practice, one can obtain fairly complex and a very high order model for the system (or plant). The analysis and design of such systems can be accomplished with greater ease if a low-order model is derived which provides a good approximation. This problem is known as the "model reduction problem". The objective of model reduction problem is to find a low-order model for a given high-order system such that the low order model retains or closely approximates the input-output behaviour of the original high-order system. Ideally, it is important that the reduction error between the original system and the reduced-order model is small for all frequencies. However, sometimes, the reduction error is more important over a certain frequency band than other frequencies. This is especially true when using the reduced order model in feedback control design. There an accurate approximation of the full-order system is required at the cross-over region. This motivated the introduction of frequency weightings in the model reduction procedure which gave rise to what is known as frequency weighted model reduction problem. Frequency weighted model reduction techniques are used in controller reduction, filter design, and circuit simulation applications. In this talk, we will discuss some of the well-known frequency weighted model reduction techniques.
报告人简介
Prof. Victor Sreeram obtained Bachelor's degree in 1981 from Bangalore University, India, Master's degree in 1983 from Madras University, India, and Ph.D degree from University of Victoria, Canada in 1989, all in Electrical Engineering. He worked as a Project Engineer in the Indian Space Research Organisation from 1983 to 1985. He joined the School of Electrical, Electronic, and Computer Engineering, University of Western Australia in 1990 and he is now a Professor. He has held Visiting Appointments at the Department of Systems Engineering, Australian National University during 1994, 1995 and 1996 and at the Australian Telecommunication Research Institute in Curtin University of Technology during 1997 and 1998. He is on the editorial board of many journals including IET Control, theory and applications, Asian Journal of Control, Mathematical Problems in Engineering, Journal of Industrial and Management Optimization, Cogent Engineering, and Smart Grid and Renewable Energy. He was the General Chair of 3rd Australian Control Conference, held in Perth during November 2013 and Vice Chair of Australiasian Power Engineering Conference (AUPEC) held in Perth during October 2014 and is now a Fellow of Institution of Engineers, Australia. He is currently the Chair of the steering committee for Australia New Zealand Control Conference series. His research interests are control, signal processing, communications and Smart Grid and Renewable Energy.
联系人：上海大学自动化系杜鑫
邮 箱： duxin@shu.edu.cn
手 机：13817208401
资助单位 上海大学国际事务处（高端外专项目）
