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DTSTAMP:20260811T013146Z
UID:C4522164-1275-4818-9DCD-5B78685EF30A
DTSTART;TZID=Australia/Canberra:20260814T110000
DTEND;TZID=Australia/Canberra:20260814T120000
DESCRIPTION:Abstract: Graphical representations of univariate systems\, suc
 h as Nyquist and Bode diagrams\, are taught in almost all control curricul
 a and are widely used across engineering domains. These tools are intuitiv
 e and informative\, enabling many closed-loop properties\, including stabi
 lity and robustness\, to be inferred by inspection\, and visually assistin
 g with controller design. However\, for multivariable systems\, the coupli
 ng of multi-dimensional information poses challenges as well as opens up m
 any possibilities for extending such graphical tools. In this talk\, we ex
 amine several emerging tools developed in this direction\, including the s
 caled relative graph (first used by the optimization community) and the Da
 vis–Wielandt shell (first used by the control community)\, along with th
 eir associated feedback stability certificates. In particular\, we highlig
 ht the connections among these tools and their applications in robust stab
 ility analysis. We also outline the key ideas behind their visualization a
 nd the validation of their resulting stability conditions.\n\nBio: Ding Zh
 ang is a Research Fellow in the School of Engineering\, The Australian Nat
 ional University. He received the B.Eng. degree in Mechanical Engineering 
 from Huazhong University of Science and Technology\, Wuhan\, China\, in 20
 18\, and the Ph.D. degree in Electronic and Computer Engineering from The 
 Hong Kong University of Science and Technology\, Hong Kong SAR\, in 2024\,
  where he also worked as a Postdoctoral Research Fellow. He was a visiting
  student with the EMAN Group at King Abdullah University of Science and Te
 chnology\, Thuwal\, Saudi Arabia\, in 2019\, and with the Control Group at
  the University of Cambridge\, Cambridge\, United Kingdom\, in 2023. His r
 esearch focuses on graphical stability analysis of uncertain and large-sca
 le networked systems\, with broader interests in matrix theory\, spectral 
 graph theory\, and control theory.\n\nBldg: Birch 2.02\,  The Australian N
 ational University\, Canberra\, Australian Capital Territory\, Australia\,
  2601
LOCATION:Bldg: Birch 2.02\,  The Australian National University\, Canberra\
 , Australian Capital Territory\, Australia\, 2601
ORGANIZER:shuixin.xiao@anu.edu.au
SEQUENCE:3
SUMMARY:Seminar: Graphical Analysis of Multivariable Systems: Emerging Tool
 s and Applications
URL;VALUE=URI:https://events.vtools.ieee.org/m/572115
X-ALT-DESC:Description: <br /><p><strong data-olk-copy-source="MessageBody"
 >Abstract</strong>: Graphical representations of univariate systems\, such
  as Nyquist and Bode diagrams\, are taught in almost all control curricula
  and are widely used across engineering domains. These tools are intuitive
  and informative\, enabling many closed-loop properties\, including stabil
 ity and robustness\, to be inferred by inspection\, and visually assisting
  with controller design. However\, for multivariable systems\, the couplin
 g of multi-dimensional information poses challenges as well as opens up ma
 ny possibilities for extending such graphical tools. In this talk\, we exa
 mine several emerging tools developed in this direction\, including the sc
 aled relative graph (first used by the optimization community) and the Dav
 is&ndash\;Wielandt shell (first used by the control community)\, along wit
 h their associated feedback stability certificates. In particular\, we hig
 hlight the connections among these tools and their applications in robust 
 stability analysis. We also outline the key ideas behind their visualizati
 on and the validation of their resulting stability conditions.<br><br><str
 ong>Bio</strong>: Ding Zhang is a Research Fellow in the School of Enginee
 ring\, The Australian National University. He received the B.Eng. degree i
 n Mechanical Engineering from Huazhong University of Science and Technolog
 y\, Wuhan\, China\, in 2018\, and the Ph.D. degree in Electronic and Compu
 ter Engineering from The Hong Kong University of Science and Technology\, 
 Hong Kong SAR\, in 2024\, where he also worked as a Postdoctoral Research 
 Fellow. He was a visiting student with the EMAN Group at King Abdullah Uni
 versity of Science and Technology\, Thuwal\, Saudi Arabia\, in 2019\, and 
 with the Control Group at the University of Cambridge\, Cambridge\, United
  Kingdom\, in 2023. His research focuses on graphical stability analysis o
 f uncertain and large-scale networked systems\, with broader interests in 
 matrix theory\, spectral graph theory\, and control theory.</p>
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