Browsing by Author "Stewart, Brian G."
Now showing items 1-4 of 4
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A Diagnostics Framework for Underground Power Cables Lifetime Estimation Under Uncertainty
Aizpurua Unanue, Jose Ignacio; Garro, Unai; Muxika Olasagasti, Eñaut; Mendicute, Mikel (IEEE, 2020)Power cables are critical assets for the reliable operation of the grid. The cable lifetime is generally estimated from the conductor temperature and associated lifetime reduction. However, these tasks are intricate due ... -
Hybrid Transformer Prognostics Framework for Enhanced Probabilistic Predictions in Renewable Energy Applications
Aizpurua Unanue, Jose Ignacio; Perez Ramirez, Ibai Aner (IEEE, 2022)The intermittent nature of renewable energy sources (RESs) hamper their integration to the grid. The stochastic and rapid-changing operation of RES technologies impact on power equipment reliability. Transformers are key ... -
Probabilistic forecasting informed failure prognostics framework for improved RUL prediction under uncertainty: A transformer case study
Aizpurua Unanue, Jose Ignacio; Penalba, Markel; Barrenetxea, Manex; Muxika Olasagasti, Eñaut (Elsevier Ltd., 2022)The energy transition towards resilient and sustainable power plants requires moving from periodic health assessment to condition-based lifetime planning, which in turn, creates new challenges and opportunities for health ... -
Uncertainty Analysis of Two Gas Measurement DGA Ratios for Improved Diagnostics Applications
Aizpurua Unanue, Jose Ignacio (IEEE, 2022)This paper formulates the exact analytical probability density function (PDF) for the ratio of two independent dissolved gas analysis (DGA) measurements that include individual gas measurement errors. It is demonstrated ...
