Title: Identifying fractional order transfer functions from frequency responses
Abstract: This paper explores simple methods to identify fractional order models from a frequency response. The models addressed are explicit and commensurate, with one or two pseudo-poles. Such identification methods complement Levy’s identification method.
Bio: Dr Duarte Valério is Associate Professor at Instituto Superior Técnico — University of Lisbon, where he got his MSc (2001) and PhD (2005) in Mechanical Engineering, with theses on fractional control, i.e. on the use of fractional (non-integer) order derivatives in control. He has worked with fractional control and fractional dynamic systems, and their applications in several areas, ever since. He also researches in the fields of energy conversion (in particular, the control of Wave Energy Converters, that produce electricity from the energy of sea waves) and bioengineering applications (modelling and control of dynamic systems such as biological processes). He has co-authored over sixty papers in journals with impact factors, three books, over seventy papers in conference proceedings, and nine book chapters.