6 papers
Grid Integration of Gigawatt-Scale Hydrogen Hubs: A Multi-Timescale Stability Analysis and Connection Requirements for Weak Grid Environments
Mohamed Shamseldein
The global transition toward green hydrogen is driving the deployment of gigawatt-scale electrolysis centers, introducing a novel, converter-dominated load class to the bulk power…
Generative Autonomous Grid Control: Integrating Decision Transformers with a Two-Stage Safety Stack
Mohamed Shamseldein
The displacement of synchronous generation by inverter-based resources is accelerating power system frequency dynamics beyond the response capability of conventional automatic gene…
Grid-Mind: An LLM-Orchestrated Multi-Fidelity Agent for Automated Connection Impact Assessment
Mohamed Shamseldein
Large language models (LLMs) have demonstrated remarkable tool-use capabilities, yet their application to power system operations remains largely unexplored. This paper presents Gr…
From Liability to Asset: A Three-Mode Grid-Forming Control Framework for Centralized Data Center UPS Systems
Mohamed Shamseldein
AI workloads are turning large data centers into highly dynamic power-electronic loads; fault-time behavior and workload pulsing can stress weak-grid points of interconnection. Thi…
A Hybrid GNN-IZR Framework for Fast and Empirically Robust AC Power Flow Analysis in Radial Distribution Systems
Mohamed Shamseldein
The Alternating Current Power Flow (ACPF) problem forces a trade-off between the speed of data-driven models and the reliability of analytical solvers. This paper introduces a hybr…
A Hybrid GNN-LSE Method for Fast, Robust, and Physically-Consistent AC Power Flow
Mohamed Shamseldein
Conventional AC Power Flow (ACPF) solvers like Newton-Raphson (NR) face significant computational and convergence challenges in modern, large-scale power systems. This paper propos…