Advanced Modelling and Simulation of Flux Distribution and Reluctance in Cylindrical Rotor Synchronous Machines under Saturation and Slotting Effects

Abel. E. Airoboman, Bolly Avong, Abu D. Yahaya

Abstract


Accurate modelling of magnetic flux distribution is essential for predicting the electromagnetic performance of rotating electrical machines. Cylindrical rotor synchronous machines are significantly affected by nonlinear magnetic saturation and stator slotting, which distort the air-gap magnetic field and alter magnetic reluctance. This paper presents an analytical and computational framework that integrates flux distribution modelling, nonlinear B–H characteristics, and slotting-induced presence variation. The model, implemented using MATLAB/Simulink, and harmonic analysis is performed using Fast Fourier Transform (FFT). Results show that saturation increases reluctance and reduces effective permeability, while slotting introduces harmonic distortion. The combined effects significantly influence machine performance, highlighting the importance of integrated modelling approaches. 


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References


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