University of Twente Student Theses


On the optimization of lossy energy storage devices

Westendorp, T.H.F. (2019) On the optimization of lossy energy storage devices.

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Abstract:Emergent technologies such as electric vehicles (EVs) and renewable energy sources (RESs) are causing a shift towards an increased electrical energy use. The unpredictable production of RESs, such as solar panels and wind turbines, as well as the high peak consumption of EVs contribute to a discrepancy of production and consumption that can not be resolved in the traditional centralized energy supply chain without further investments in grid reinforcement. The use of schedulable smart appliances allows us to even out this discrepancy before the transformer. In this thesis we consider a controllable smart energy storage device where we account for energy conversion losses. We show that local reparation methods that account for losses applied to the lossless solution perform poorly, that the problem is NP-complete, and propose polynomial-time exact methods for certain parameter choices, and a heuristic for the general case. A case study is conducted to evaluate the performance of the heuristic method.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Programme:Electrical Engineering MSc (60353)
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