Torque Maximization of Induction Motor with CNT Yarn Wire applied Secondary Conductor using Size Optimization

Abstract

Because of the potential shortage of energy resources in the future, it is essential to improve the efficiency of the induction motor. Induction motors have a challenge with efficiency in high temperatures. Applying CNT yarn to the secondary conductor can improve efficiency as the temperature rises. However, due to differences in electrical conductivity, the maximum torque decreases. In this study, we aimed to increase the maximum torque by designing the rotor structure of an induction motor with CNT yarn applied to the secondary conductor through size optimization using electromagnetic field analysis. The obtained structure achieved an improvement in maximum torque.