Conference paper
Economic Model Predictive Control for Building Climate Control in a Smart Grid
Center for Energy Resources Engineering, Centers, Technical University of Denmark1
Department of Informatics and Mathematical Modeling, Technical University of Denmark2
Scientific Computing, Department of Informatics and Mathematical Modeling, Technical University of Denmark3
Mathematical Statistics, Department of Informatics and Mathematical Modeling, Technical University of Denmark4
Model Predictive Control (MPC) can be used to control a system of energy producers and consumers in a Smart Grid. In this paper, we use heat pumps for heating residential buildings with a floor heating system. We use the thermal capacity of the building to shift the electricity consumptions to periods with low energy prices.
In this way the heating system of the house becomes a flexible power consumer in the Smart Grid. This scenario is relevant for systems with a significant share of stochastic energy producers, e.g. wind turbines, where the ability to shift power consumption according to production is crucial. We present a model for a house with a heat pump used for supplying thermal energy to a floor heating system.
The model is a linear state space model and the resulting controller is an Economic MPC formulated as a linear program. The model includes forecasts of both weather and electricity price. Simulation studies demonstrate the capabilities of the proposed model and algorithm. Compared to traditional operation of heat pumps with constant electricity prices, the optimized operating strategy saves 25-33% of the electricity cost.
Language: | English |
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Publisher: | IEEE |
Year: | 2012 |
Pages: | 1-6 |
Proceedings: | IEEE PES Conference on Innovative Smart Grid Technologies (ISGT) |
ISBN: | 1457721570 , 1457721589 , 1457721597 , 9781457721571 , 9781457721588 and 9781457721595 |
Types: | Conference paper |
DOI: | 10.1109/ISGT.2012.6175631 |
ORCIDs: | Halvgaard, Rasmus , Poulsen, Niels Kjølstad , Madsen, Henrik and Jørgensen, John Bagterp |
Buildings Electricity Heat pumps Heat transfer MPC Resistance heating Solar heating Water heating building climate control building management systems economic model predictive control electricity prices energy consumption floor heating system ground source based heat pump heat pumps heating linear program power consumption power system control power system economics predictive control residential building heating smart grid smart power grids temperature control thermal capacity thermal energy wind turbines