Noise Harshness and Vibration Characterization of Switched Reluctance Motors

• Published in: Journal of Computer Science and Control Systems Vol. 9; no. 2; p. 34
• Main Authors: Tiberiu, Rusu, Adrian-Cornel, Pop, Loránd, Szabó
• Format: Journal Article
• Language: English
• Published: Oradea University of Oradea 01.10.2016
• Subjects: Acoustics; Automotive parts; Computer programs; Control systems; Electric circuits; Electromagnetism; Finite element method; Fourier transforms; Harmonics; Mathematical models; Motors; Reluctance
• ISSN: 1844-6043; 2067-2101

The paper deals with the multiphysic co-simulation for noise prediction of a 12/8 switched reluctance motor (SRM). Its electromagnetic analysis was performed by means of a finite element analysis (FEA) model externally coupled to a voltage-fed electrical circuit. The latter uses pre-calculated optimal values for the commutation angles and the reference current, which are provided by the dynamic model previously created in Simulink, where the closed-loop control system and the power converter are considered. The electromagnetic forces acting on each tooth of the SRM are calculated via the Maxwell stress tensor, and the Fast Fourier Transform (FFT) is applied to obtain their harmonic contents. These are then used as inputs for the harmonic structural model (HSM). The acoustic performance of the SRM is analyzed using the displacements and velocities obtained from the HSM. By means of this complex software tool the influence of the different geometrical, electrical or mechanical parameters on the vibroacoustic behavior of the SRM can be analyzed.