Distributed Online Feedback Optimization for Real-time Distribution System Voltage Regulation

We investigate the real-time voltage regulation problem in distribution systems employing online feedback optimization (OFO) with short-range communication between physical neighbours. OFO does not need an accurate grid model nor estimated consumption of non-controllable loads, affords fast calculat...

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Bibliographic Details
Published inarXiv.org
Main Authors Sen, Zhan, Paterakis, Nikolaos G, Wouter van den Akker, van der Molen, Anne, Morren, Johan, Slootweg, J G
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 11.10.2024
Subjects
Feedback
Optimization
Voltage limit violations
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Summary:We investigate the real-time voltage regulation problem in distribution systems employing online feedback optimization (OFO) with short-range communication between physical neighbours. OFO does not need an accurate grid model nor estimated consumption of non-controllable loads, affords fast calculations, and demonstrates robustness to uncertainties and disturbances, which render it particularly suitable for real-time distribution system applications. However, many OFO controllers require centralized communication, making them susceptible to single-point failures. This paper proposes a distributed OFO design based on a nested feedback optimization strategy and analyzes its convergence. Numerical study results demonstrate that the proposed design achieves effective voltage regulation and outperforms other distributed and local approaches.
ISSN:2331-8422