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Ragi A. Hamdy on Muck Rack

Ragi A. Hamdy

As seen in: Nature
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Articles

Impact of zero‑output crisp range recentering on the performance of FPIDD 2 controllers for multi-area LFC–AVR systems

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By Mohamed Omar, Ragi A. Hamdy, Hossam Kotb
| Nature Verified
Abstract Modern interconnected power systems with high penetration of renewable energy sources (RES) and large‑scale use of electric vehicles (EVs) experience recurring frequency and voltage disturbances. Accordingly, the main objective in this work is to overcome this limitation in a power system under coordinated load frequency control (LFC) and automatic voltage regulation (AVR), which requires highly accurate control strategies.
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A machine learning–based optimal charging strategy for PV-assisted electric vehicle systems incorporating second-life batteries under degradation constraints

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By Ahmed Ezzat, Ayman S. Abdel-Khalik, Mostafa S. Hamad, Ragi A. Hamdy
| Nature Verified
Abstract The rapid expansion of electric vehicles (EVs) and residential photovoltaic (PV) systems has created new challenges in battery charging management, particularly due to the variability of renewable energy, grid limitations, and battery aging effects. In this work, we present a machine learning–based Energy Management System (EMS) designed for PV-assisted smart charging of EVs and second-life batteries.
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