Simulink Modelling and Simulation of a 5kVA Fuelless Generator

Abstract

This study presents the modeling, simulation, and performance evaluation of a 5kVA flywheel-based fuelless generator using MATLAB/Simulink. The primary objective is to explore a sustainable, emission-free alternative to conventional fuel-based power generation systems. The system integrates key modules including a Battery Management System (BMS), a DC motor with a pulley drive, a flywheel for energy storage, an alternator for power generation, and a distribution unit for voltage regulation. Each module is modeled and simulated independently before system-level integration to ensure accurate representation and performance assessment. Simulation results reveal efficient energy conversion, with the motor achieving rapid acceleration, the flywheel maintaining stable rotational energy, and the alternator generating consistent AC output. The BMS effectively regulates charge-discharge cycles and thermal conditions, while the distribution system delivers a stable DC output of 11.9 V, confirming its applicability for real-world low-voltage applications. The overall system demonstrates robust operation, confirming the viability of a modular, fuel-free generator capable of delivering clean, continuous power through intelligent energy management and mechanical-electrical integration.