Sensitivity Analysis of Parameters Affecting the Performance of Radial Flux Low-Speed PMSG

Abstract

This paper is committed to build a comprehensive understanding of the different design possibilities, working closely with inner-rotor, radial-flux, permanent magnet synchronous generator (RF-PMSG). Design parameters, such as steel grade, segmenting and over-hanging PM, air-cored rotor and skewing angles are all taken into consideration. A detailed parametric analysis - based on Finite-Element-Method (FEM) software - is carried out in order to study different scenarios of PMSG designs. Accordingly, the FEM method is used to evaluate and quantify the variation of the flux density, output power, cogging torque, and power density for different design variations. The aim as well is to develop an enhanced performance at reduced material and manufacturing costs. The results showed a promising modified PMSG design, where both the shape of PM and the structure of its stator and rotor are changed.