EMSx: a numerical benchmark for energy management systems

Abstract

Inserting renewable energy in the electric grid in a decentralized manner is a key challenge of the energy transition. However, at local scale, both production and demand display erratic behavior, which makes it challenging to match them. It is the goal of Energy Management Systems (EMS) to achieve such balance at least cost. We present EMSx, a numerical benchmark for testing control algorithms for the management of electric microgrids equipped with a photovoltaic unit and an energy storage system. EMSx is made of three key components: the EMSx dataset, provided by Schneider Electric, contains a diverse pool of realistic microgrids with a rich collection of historical observations and forecasts; the EMSx mathematical framework is an explicit description of the assessment of electric microgrid control techniques and algorithms; the EMSx software EMSx.jl is a package, implemented in the Julia language, which enables to easily implement a microgrid controller and to test it. All components of the benchmark are publicly available, so that other researchers willing to test controllers on EMSx may reproduce experiments easily. Eventually, we showcase the results of standard microgrid control methods, including Model Predictive Control, Open Loop Feedback Control and Stochastic Dynamic Programming.

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Notes

  1. 1.

    When the horizon extends further than the period, we truncate the lookahead window to \(\min (H, T-t{+}1)\).

  2. 2.

    We recall that gains were defined relatively to the cost performance of a dummy controller.

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Acknowledgements

We thank Efficacity and Schneider Electric for the PhD funding of Adrien Le Franc. Additionally, we are grateful for the feedbacks and data supply from Peter Pflaum and Claude Le Pape (Schneider Electric) and we thank our colleague Tristan Rigaut (Efficacity) for insightful tips about the Julia language. We thank the Guest Editor and the Reviewers for their insightful comments that helped improve the manuscript.

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Correspondence to Adrien Le Franc.

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Le Franc, A., Carpentier, P., Chancelier, JP. et al. EMSx: a numerical benchmark for energy management systems. Energy Syst (2021). https://doi.org/10.1007/s12667-020-00417-5

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Keywords

  • Electric microgrid
  • Multistage stochastic optimization
  • Numerical benchmark