Normalizing Flow-based Day-Ahead Wind Power Scenario Generation for Profitable and Reliable Delivery Commitments by Wind Farm Operators
Abstract
We present a specialized scenario generation method that utilizes forecast information to generate scenarios for day-ahead scheduling problems. In particular, we use normalizing flows to generate wind power scenarios by sampling from a conditional distribution that uses wind speed forecasts to tailor the scenarios to a specific day. We apply the generated scenarios in a stochastic day-ahead bidding problem of a wind electricity producer and analyze whether the scenarios yield profitable decisions. Compared to Gaussian copulas and Wasserstein-generative adversarial networks, the normalizing flow successfully narrows the range of scenarios around the daily trends while maintaining a diverse variety of possible realizations. In the stochastic day-ahead bidding problem, the conditional scenarios from all methods lead to significantly more stable profitable results compared to an unconditional selection of historical scenarios. The normalizing flow consistently obtains the highest profits, even for small sets scenarios.
Authors 4
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Eike Cramer Aachen
Forschungszentrum Jülich · RWTH Aachen University
Affiliation as printed
Forschungszentrum Jülich GmbH , Institute of Energy and Climate Research , Energy Systems Engineering (IEK- 10) , Jülich 52425 , Germany
RWTH Aachen University Aachen 52062 , Germany
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Forschungszentrum Jülich · Technische Universität Berlin
Affiliation as printed
Forschungszentrum Jülich GmbH , Institute of Energy and Climate Research , Energy Systems Engineering (IEK- 10) , Jülich 52425 , Germany
Technical University of Berlin , Berlin 10623 , Germany
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Affiliation as printed
Forschungszentrum Jülich GmbH , Institute of Energy and Climate Research , Energy Systems Engineering (IEK- 10) , Jülich 52425 , Germany
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