Abstract: This paper proposes a coupling analysis of the electromagnetic and thermal-fluid fields in an interior permanent magnet motor for electric vehicles. Both electrical and magnetic materials have temperature-dependent properties. The power loss produced by the electromagnetic analysis reheats the motor and its rise in temperature alters the material properties as well as motor performance. The temperature-dependent power loss is used as a heat source to create a lumped-circuit thermal model in terms of equivalent thermal resistances and thermal capacitances, in order to investigate the transient response of the motor. Simulation results confirmed that coupled electromagnetic and thermal-fluid analysis is able to predict the performance of a motor prior to its prototyping.

• Publication Date: 26-Oct-2014
• DOI: 10.15224/978-1-63248-031-6-142
• Views: 0
• Downloads: 0

Abstract: In this study, characteristics and magnetic properties of magnetic materials having NiO1-xZnOxFe2O4 structure were investigated. Mechanical mixing of high purity NiO, ZnO and Fe2O3 powders were done to obtain homogenous NiO1-xZnOxFe2O4 powder mixture for x=0.15, x=0.50 and x=0.85. These powder mixtures were pressed using hydraulic press machine and then subjected to sintering at same temperatures of 10000C for 1 hour. Obtained specimens were analysed with SEM (Scanning Electron Microscopy) imaging and EDXRF (Energy-Dispersive-X-Ray Fluorescence) technique for the investigation of structural analysis; magnetic properties was determined using VSM (Vibrating Sample Magnetometer).

• Publication Date: 26-Oct-2014
• DOI: 10.15224/978-1-63248-031-6-144
• Views: 0
• Downloads: 0