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Modeling Load Forecast Uncertainty Using Generative Adversarial Networks

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The integration of distributed energy resources (DER) increase the uncertainty of the load. Probabilistic load forecasting (PLF) is able to model these uncertainties in the form of quantile, interval, or density. However, the uncertainties are usually given individually for every single period which fails to capture the temporal variations across periods. Therefore, this paper proposes a generative adversarial network (GAN)-based scenario generation approach to model both the uncertainties and the variations of the load. Specifically, point forecasting is first conducted and the corresponding residuals are calculated. On this basis, a conditional GAN model is designed and trained. Then, the well-trained GAN model generates residual scenarios that are conditional on the day type, temperatures, and historical loads. Finally, the effectiveness of the uncertainty modeling by the generated scenarios is evaluated from different perspectives. Case studies on open datasets verify the effectiveness and superiority of the proposed method.

Author(s):

Yi Wang    
ETH Zurich
Switzerland

Gabriela Hug    
ETH Zurich
Switzerland

Zijie Liu    
Tsinghua University
China

Ning Zhang    
Tsinghua University
China

 

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