Load-Shifting Response Dynamics: Limitations and Other Challenges From Indirect Price-Based Control of Populations of Flexible Loads

Wednesday, December 1, 2021 - 11:00am to 12:00pm

Event Calendar Category

Other LIDS Events

Speaker Name

Pedro Carvalho

Affiliation

University of Lisbon

Zoom meeting id

91590513076

Join Zoom meeting

https://mit.zoom.us/j/91590513076

Abstract

Demand flexibility and its responsiveness under price-based control is a major research field. Much attention has been paid to model demand elasticity as synonymous with demand flexibility. But demand flexibility comes mostly as load shifting, and load shifting dynamics have been neglected when modelling demand response. In this talk, we will show the results of modeling basic load shifting dynamics with a particle hopping cellular automaton (CA), and interpret such results to derive response intrinsic limitations from direct control of such loads. We will then look at dynamics from indirect price-based control focusing on the hysteresis of the price-response characteristic and on the difficulties, hysteresis imposes to control. We will finally use the CA to model plug-in electric vehicles (PEV) battery discharge capabilities of vehicle-to-grid (V2G) technologies and discuss the value added to PEV aggregators by evolving from ordinary load-shifting into V2G responsive services.

 

Biography

Pedro M. S. Carvalho is a professor at the University of Lisbon. He received the electrical and computer engineering, M.Sc., and Ph.D. degrees from the Instituto Superior Técnico (IST), University of Lisbon, Lisbon, Portugal, in 1992, 1994, and 1999, respectively. Since 1992, he has been with the Department of Electrical and Computer Engineering, IST, where he is currently an Associate Professor. Since 2015, he has been a Collaborator with the Electrical and Computer Engineering Department, Carnegie Mellon University, Pittsburgh, PA, USA, where he was an Adjunct Professor.