Design and Dynamic Simulation of a Grid-Connected 159 MW Nuclear Power System with FFT-Based Power Quality Evaluation

Sany SA, Howlader N, Rahman S and Aiddique AN

Published on: 2025-08-16

Abstract

The proposed study focuses on the modeling, design, simulation, and assessment of the power quality of a 159 MW uranium-furnished nuclear power plant utilizing attributes of a Fast Fourier Transform (FFT) study exploited via MATLAB/Simulink. It is possible to perform static and dynamic analysis of the behavior of the system under realistic conditions with a more realistic grid-connected environment by providing realistic components to the model of the system with detailed thermal, electrical, and control components. The execution of a load flow analysis, bus-wise voltage profile, and the assessment of harmonic distortion ensure the system's stability and dependability. In particular, Total Harmonic Distortion (THD) may reach 50 percent under certain load conditions, and that may be above IEEE 519 rules. This makes it clear that the provision of harmonic reduction methods such as optimized capacitor banks and integration of filters is indispensable. Simulation results indicate that model-based design would be the course of action in ensuring that the power quality issues are diagnosed within the nuclear energy systems, as well as their optimization. The study contributes to the emerging literature concerning the mechanisms of creating a grid-linked sustainable nuclear power infrastructure using simulations.