Probabilistic Dynamic Line Rating with Line Graph Convolutional LSTM

Fuente: arXiv
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Autori principali: Kim, Minsoo, Dvorkin, Vladimir, Kim, Jip
Natura: Preprint
Pubblicazione: 2025
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author Kim, Minsoo
Dvorkin, Vladimir
Kim, Jip
author_facet Kim, Minsoo
Dvorkin, Vladimir
Kim, Jip
contents Dynamic line rating (DLR) is an effective approach to enhancing the utilization of existing transmission line infrastructure by adapting line ratings according to real-time weather conditions. Accurate DLR forecasts are essential for grid operators to effectively schedule generation, manage transmission congestion, and lower operating costs. As renewable generation becomes increasingly variable and weather-dependent, accurate DLR forecasts are also crucial for improving renewable utilization and reducing curtailment during congested periods. Deterministic forecasts, however, often inadequately represent actual line capacities under uncertain weather conditions, leading to operational risks and costly real-time adjustments. To overcome these limitations, we propose a novel network-wide probabilistic DLR forecasting model that leverages both spatial and temporal information, significantly reducing the operational risks and inefficiencies inherent in deterministic methods. Case studies on a synthetic Texas 123-bus system demonstrate that the proposed method not only enhances grid reliability by effectively capturing true DLR values, but also substantially reduces operational costs.
format Preprint
id arxiv_https___arxiv_org_abs_2512_04369
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Probabilistic Dynamic Line Rating with Line Graph Convolutional LSTM
Kim, Minsoo
Dvorkin, Vladimir
Kim, Jip
Systems and Control
Dynamic line rating (DLR) is an effective approach to enhancing the utilization of existing transmission line infrastructure by adapting line ratings according to real-time weather conditions. Accurate DLR forecasts are essential for grid operators to effectively schedule generation, manage transmission congestion, and lower operating costs. As renewable generation becomes increasingly variable and weather-dependent, accurate DLR forecasts are also crucial for improving renewable utilization and reducing curtailment during congested periods. Deterministic forecasts, however, often inadequately represent actual line capacities under uncertain weather conditions, leading to operational risks and costly real-time adjustments. To overcome these limitations, we propose a novel network-wide probabilistic DLR forecasting model that leverages both spatial and temporal information, significantly reducing the operational risks and inefficiencies inherent in deterministic methods. Case studies on a synthetic Texas 123-bus system demonstrate that the proposed method not only enhances grid reliability by effectively capturing true DLR values, but also substantially reduces operational costs.
title Probabilistic Dynamic Line Rating with Line Graph Convolutional LSTM
topic Systems and Control
url https://arxiv.org/abs/2512.04369