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Controlling the power consumption of a population of thermostatic loads with a switching-fraction signal broadcast

We consider a large group of thermostatic units of the same type, where each unit has an on/off power consumption characteristic controlled by an internal thermostat. These could be refrigerators, heat-pumps or air-conditioning units. Because these types of loads can potentially deliver demand response services to the electricity grid in an automated way, they are of special interest in the context of Smart Grid solutions. The focus of the talk is on using a broadcast strategy for control actuation. A switching-fraction signal to which individual units respond without inter-communication is used to partially synchronize or desynchronize the power cycles of the units, and therefore manipulate the aggregate power consumption. Two control loop designs are presented, one build around an equivalent "leaky-bucket" energy model, and a second one based on a physically based model of temperature distributions within the population.

Type of Seminar:
IfA Internal Seminar
Luminita Totu
University of Aalborg, Denmark
Nov 12, 2013   2:00 pm

ETL K 25
Contact Person:

Prof. John Lygeros
No downloadable files available.
Biographical Sketch:
Luminita Totu has a Bachelor's degree in Automatics and Industrial Informatics from the Politehnical University in Bucharest, professional experience as a software developer, and a MSE in Intelligent Autonomous Systems from Aalborg University. The topic of her PhD project is within control methods for smart grids. Other interests include inertial navigation and Kalman-like filtering.