Coordination of operational planning and real-time optimization in microgrids
Abstract
Hierarchical microgrid control levels range from distributed device level controllers that run at a high frequency to centralized controllers optimizing market integration that run much less frequently. Centralized controllers are often subdivided into operational planning controllers that optimize decisions over a time horizon of one or several days, and real-time optimization controllers that deal with actions in the current market period. The coordination of these levels is of paramount importance. In this paper, we propose a value function-based approach as a way to propagate information from operational planning to real-time optimization. We apply this method to an environment where operational planning, using day-ahead forecasts, optimizes at a market period resolution the decisions to minimize the total energy cost and revenues, the peak consumption and injection-related costs, and plans for reserve requirements. While real-time optimization copes with the forecast errors and yields implementable actions based on real-time measurements. The approach is compared to a rule-based controller on three use cases, and its sensitivity to forecast error is assessed.
Cite
@article{arxiv.2106.02374,
title = {Coordination of operational planning and real-time optimization in microgrids},
author = {Jonathan Dumas and Selmane Dakir and Clément Liu and Bertrand Cornélusse},
journal= {arXiv preprint arXiv:2106.02374},
year = {2021}
}