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Conference paper

Flexible Control of Wastewater Aeration for Cost-Efficient, Sustainable Treatment

In Ifac-papersonline 2019, pp. 494-499
From

Dynamical Systems, Department of Applied Mathematics and Computer Science, Technical University of Denmark1

Department of Applied Mathematics and Computer Science, Technical University of Denmark2

Krüger Veolia Water Technologies3

CITIES - Centre for IT-Intelligent Energy Systems, Centers, Technical University of Denmark4

With increasing fluctuations in electricity production due to prioritization of renewable energy sources, new applications that can adjust quickly to changes in demand/supply will be needed. Wastewater treatment use a significant amount of electricity to reduce nutrients in wastewater before discharge.

The treatment process demands electricity in some selected periods which can be controlled, and hence the time of consumption is changeable. Here we suggest a novel predictive control strategy which enhances the flexibility in electricity demand by accounting for electricity price and probability of up or down regulation.

The strategy is demonstrated in simulation experiments, where the concept is illustrated and the potential savings are estimated. Furthermore flexibility is investigated as a function of regulating prices, and it is shown that when difference between electricity price and regulating price increases, sodoes flexibility of the system

Language: English
Year: 2019
Pages: 494-499
Proceedings: IFAC Workshop on Control of Smart Grid and Renewable Energy Systems
ISSN: 24058963 and 24058971
Types: Conference paper
ORCIDs: Brok, Niclas Brabrand , Stentoft, Peter Alexander and Madsen, Henrik

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