Load constrained wind farm flow control through multi-objective multi-agent reinforcement learning
Abstract
This study presents a multi-agent reinforcement learning (MARL) framework for load-constrained wind farm flow control (WFFC). While wake steering can enhance total wind farm power, it often introduces increased structural loads on downstream turbines. To address this, we integrate an Independent Soft Actor-Critic (I-SAC) architecture with a data-driven, local inflow sector-averaged surrogate model to provide real-time estimates of Damage Equivalent Loads (DELs). By incorporating these estimates into a shaped reward function, turbine-specific agents are trained to maximize power production while adhering to specific load-increase thresholds () of 10%, 20%, and 30% relative to a baseline controller. The framework is implemented within the WindGym environment using the DYNAMIKS flow solver with Dynamic Wake Meandering (DWM) model to capture non-stationary wake physics. Results indicate that the MARL agents successfully learn collaborative policies that prioritise power gain while actively retreating from high-DEL control strategies.
Cite
@article{arxiv.2604.22795,
title = {Load constrained wind farm flow control through multi-objective multi-agent reinforcement learning},
author = {Teodor Åstrand and Marcus Binder Nilsen and Iasonas Tsaklis and Tuhfe Göçmen and Pierre-Elouan Réthoré and Nikolay Dimitrov},
journal= {arXiv preprint arXiv:2604.22795},
year = {2026}
}
Comments
Submitted to Journal of Physics: Conference Series (Torque 2026). This is the Accepted Manuscript version of an article accepted for publication in Journal of Physics: Conference Series. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. This Accepted Manuscript is published under a CC BY licence