BUSCA DE PARÂMETROS DE UM MODELO DE HISTERESE VETORIAL UTILIZANDO ALGORITMOS GENÉTICOS
BUSCA DE PARÂMETROS DE UM MODELO DE HISTERESE VETORIAL UTILIZANDO ALGORITMOS GENÉTICOS
DOI: https://doi.org/10.22533/at.ed.49725270111
Palavras-chave: Método de elementos finitos. Método de algoritmos genéticos. Anisotropia magnética. Histerese magnética.
Keywords: Finite element method. Genetic algorithms method. Magnetic anisotropy. Magnetic hysteresis.
Abstract: The laboratory for designing and analyzing electromagnetic devices (GRUCAD) received samples of non-oriented grain silicon steel. Two measurements of the magnetic field strength versus magnetic flux density curves were performed. This chapter presents a novel method for extracting the ten bidimensional magnetic hysteresis parameters of the Jiles-Atherton vector model to model the experimental curves. The procedure is based on the genetic algorithms method and ensures a strong agreement between the calculated hysteresis and the experimental curves. This provides reliable validation for the ten computed parameters. Additionally, the paper demonstrates a practical application of these parameters. With the ten parameters, it is possible to obtain two anhysteretic curves. The ascending data in the first quadrant represents the initial magnetization curve of the material. These initial magnetization curves are then used in the Ansys Electromagnetics Suite software to define the nonlinear anisotropic core of an alternating current inductor. Subsequently, a two-dimensional finite element analysis is performed. The analysis improves the design and computation of inductors extensively utilized in electrical engineering. This study contributes to understanding and optimizing inductors, promoting significant advancements in electrical engineering.
- Filomena Barbosa Rodrigues Mendes
- Lesly Daiana Barbosa Sobrado
- Jean Vianei Leite
- Nelson Jhoe Batistela