Design of a Multi-Objective Power Electronic Smart Transformer for Smart Grid Applications | ||
| Sohag Engineering Journal | ||
| Volume 5, Issue 2, September 2025, Pages 126-140 PDF (767.77 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/sej.2025.382468.1080 | ||
| Authors | ||
| Rasha Kassem; Hedra Saleeb* | ||
| Electrical Department, Faculty of Technology and Education, Sohag University, Sohag 82524, Egypt | ||
| Abstract | ||
| Transitioning to smart grids requires innovative technologies that enhance power distribution efficiency, resilience, and sustainability. This paper presents a comprehensive study of the power electronic smart transformer (PEST), a solid-state alternative to conventional transformers that enables real-time monitoring, bidirectional power flow, and the integration of renewable energy sources. The proposed power electronic smart transformer system features a modular, three-stage architecture with advanced control strategies optimized for grid stability, harmonic mitigation, and rapid dynamic response. Through MATLAB/Simulink simulations and experimental validation, the study demonstrates that the power electronic smart transformer achieves up to 99% efficiency, improves voltage stability by 30%, and keeps total harmonic distortion (THD) below 3%. Additionally, the system supports essential smart grid functionalities such as micro-grid islanding, Vehicle-to-Grid (V2G) interaction, and artificial intelligence-based predictive maintenance. This work bridges the gap between theoretical power electronic smart transformer models and practical deployment, providing a scalable solution for next-generation smart grids. | ||
| Keywords | ||
| Power Electronic Smart Transformer; Solid-State Transformer; Smart Grid; Power Distribution System; Power Electronics | ||
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