EEE Seminar Programme 2022/2023

Seminars are normally 20-30 minutes*, followed by questions and discussion.

EEE Lab Tours

Lab tours are normally less than 1 hour and offer a chance to show what goes on and maybe to showcase new equipment or facilities. If people who are not party of the EEE systems research group wish to join, please contact the coordinator to check there is sufficient space available for the tour.

Completed Activities

>DONE - Control of Nanopositioning Systems: My journey thus far!

Monday 19th Sept 2 pm, School Seminar Room, FN185.

Abstract: One of the research themes I have been working on for close to two decades the is control of nanopositioning systems. Though they are at the high-end of technology; being able to accurately position matter within a few nanometers; they are really nice candidate systems to design new control schemes on. The reason is that they can be as simple (a second-order mass-spring-damper system) or as complex (infinite order resonant system with hysteresis and creep nonlinearities) as you want them to be! My foray into the control of these systems has led to establishing a new and popular controller for system resonances; the Integral Resonant Control; as well as several designs and optimisations for combined damping and tracking control schemes. On the side, I have also dabbled with robust control, sliding-mode control, repetitive control and suchlike, but found them to be either too finicky or too complex to be of great practical value for this application. After hopefully (?) exhausting relevant integer-order controllers, I am currently focussed on devising new fractional-order control schemes, with significant potential of impacting a wide range of technological systems. This talk will give a brief of my journey in this wide-impact area and end with introducing some problems I need help with.