Thermal Characteristics of Hybrid Excitation Double Stator Bearingless Switched Reluctance Motor

Abstract

In order to research the temperature distribution of a hybrid excitation double stator bearingless switched reluctance motor (HEDSBSRM), the finite element method (FEM) is used to conduct thermal modeling and analysis. First, 2D FEM is used to calculate the losses of the motor, including the core losses and copper losses of the windings. Then, in the thermal analysis module of ANSYS Workbench software, losses are used for calculation and analysis as the thermal load. Furthermore, in order to enhance the accuracy of modeling, this paper also considers the equivalent thermal conductivity of each part of the motor, and the equivalent insulation of the windings and surface convection heat transfer coefficient are also considered. Finally, the simulation results of motor temperature field distribution are analyzed and studied in detail. The thermal characteristic is also of guiding significance to the optimal design of the motor.

Thermal Modeling and Analysis of Hybrid Excitation Double Stator Bearingless Switched Reluctance Motor

“…Reference [15] analyzed thermal performance of a 10 kw double stator switched reluctance motor at various load conditions and concluded that the temperature of inner stator is higher than outer stator because of the cooling system. Establish transient model with finite element method (FEM) to calculate the loss of BSRM and then import the loss as heat source into thermal field to analyze the temperature distribution of the motor [16][17][18]. There are more and more researches on the control strategy, parameter design, and vibration noise reduction of BSRM [19][20][21], but little research on the change of body heat when the motor is running.…”

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