arXiv Machine Learning

EBL: Efficient Broad Learning for Distributed Adaptive Harmonic Analysis

The paper introduces EBL, an Efficient Broad Learning framework designed for distributed adaptive harmonic estimation in power grids affected by electric vehicle charging. It leverages a quantised FPGA implementation to provide high‑accuracy, half‑cycle input harmonic predictions with ultra‑low latency, outperforming existing FPGA methods by 17.4×. The online transfer learning component enables rapid adaptation across multiple charging scenarios, while bespoke quantisation and sparsity reduce resource usage to just 5.9% of the LUTs on a Zynq Ultrascale+ FPGA, compared to 82% of the state‑of‑the‑art accelerator.

arXiv Machine Learning
Sep 24

Relative Discharge Stage (RDS) Classification: A Practical Indicator of Battery Discharge Progress

The paper introduces Relative Discharge Stage (RDS), a battery‑management indicator that classifies remaining discharge condition into five interpretable classes—Normal, Good, Moderate, Low, and Recharge Required—without needing future load information. It combines physics‑based SOC estimation with a lightweight temporal convolutional network that processes measured current, voltage, temperature, and SOC over a sliding window. Experiments on two public lithium‑ion datasets show RDS classification accuracy above 80% across varied load and thermal conditions.

By Khoa Tran, Tri Le, Hung-Cuong Trinh, Hung Tran-Nam
arXiv Machine Learning
Sep 14

Towards Sustainable Hydrogen Systems: Supply Chain Optimization with Model Predictive Control and Reinforcement Learning

This study evaluates four control strategies—rule-based, model predictive control (MPC), reinforcement learning without forecasts (RL‑NF), and reinforcement learning with forecasts (RL‑F)—for a renewable‑powered hydrogen supply chain. Using a unified, physically realistic simulation that includes electrolyzer constraints, storage dynamics, and grid limits, the authors find that MPC delivers the best economic performance by leveraging short‑term forecasts, while RL‑NF performs robustly without future information. RL‑F does not consistently outperform RL‑NF, indicating that forecast uncertainty and added state complexity can hinder forecast‑augmented learning.

By Mahammad Valiyev
arXiv AI
Aug 11

Tools to Explain Neural Networks for Power System Dynamics

arXiv:2608. 08048v1 Announce Type: cross Abstract: This paper presents, for the first time in power systems literature to our knowledge, analytical tools to explain the training performance of machine learning surrogate models for power system dynamics.

By Petros Ellinas, Johanna Vorwerk, Spyros Chatzivasileiadis
arXiv Machine Learning
Aug 18

Real-Time State-of-Health Estimation and Online Degradation Prognosis from Partial Battery Discharge Using Physics-Informed Neural Networks

arXiv:2608. 14764v1 Announce Type: new Abstract: With the increasing integration of renewable energy sources, energy storage systems have become essential, making the accurate estimation of their State of Health (SOH) and degradation behavior critical.

By Bego\~na Ispizua, Serio Gil-L\'opez, Leire Arrizabalaga, Ibai La\~na