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Por favor, use este identificador para citar o enlazar este ítem: http://documenta.ciemat.es/handle/123456789/2192

Título : Asymmetrical Rotor Skewing Optimization in Switched Reluctance Machines Using Differential Evolutionary Algorithm
Autor : Torres, Jorge
Moreno-Torres, Pablo
Navarro, Gustavo
Blanco, Marcos
Najera, Jorge
Santos-Herran, Miguel
Lafoz, Marcos
Palabras clave : switched reluctance machine
torque ripple
skewed rotor
differential evolution optimization
multi-objective optimization
Fecha de publicación : 23-ene-2024
Citación : MDPI - Energies;Volume: 14, Issue: 11, May 2021
Resumen : Minimizing torque ripple in electrical machines for a given application is not a straightforward task, especially when the application imposes certain constraints. There are many techniques to improve torque ripple, either design-based or control-based. In this paper, a new geometry for switched reluctance machines based on rotor poles skewing is proposed to minimize torque ripple. This paper describes a methodology to design an asymmetrical skew rotor—switched reluctance machine using a multi-objective differential evolutionary algorithm. The main parameters of the optimization process are defined, as is the optimization methodology to obtain an improved design with less torque ripple than a conventional one. Moreover, the analytical formulas used in the optimization method, as well as the optimization technique, are deduced and explained in detail. The mathematical model used to simulate the electrical machine and the power converter are also described. Two-dimensional and three-dimensional finite element analyses were also conducted to assess whether 3D effects (end-effect and axial fringing field) affected the results. Finally, a particular case of a high-voltage direct current-controlled generator in the base of the More Electric Aircraft (MEA) concept or an energy storage system as an electrical machine was analyzed, and the results for the improved configuration were compared with those for the conventional one.
URI : http://documenta.ciemat.es/handle/123456789/2192
ISSN : 1996-1073
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