Distribution networks face challenges from the increasing deployment of Distributed Energy Resources (DERs) and the emergence of bidirectional power flows. We propose a decentralized Volt/VAr control method based on a saddle-point reformulation and consensus+innovation (C+I) updates. Each agent at a controllable bus computes and enforces its own set-points using only neighbor communication. Our method embeds passive buses directly, preserves network physics through a linearized Jacobian model, and avoids any supervisory nodes. Simulation results on a modified CIGRE low-voltage network show voltage stability improvement within operational limits, indicating the viability of a fully decentralized (edge-based) Volt/VAr control solution.
@article{arxiv.2509.09048,
title = {Decentralized Local Voltage Control for Active Distribution Networks},
author = {Diana Vieira Fernandes and Soummya Kar and Carlos Santos Silva},
journal= {arXiv preprint arXiv:2509.09048},
year = {2025}
}
Comments
To appear in IEEE SmartGridComm'25 - 2025 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm)