회전속도와 간극 폭에 따른 모터의 열전달 특성에 대한 수치적 연구

초록

Three-dimensional computations are performed to investigate the flow and thermal characteristics of a synchronous reluctance motor, which is capable of wide range of constant power and variable speed operation required for industrial applications such as control devices. This work focuses on the effects of rotational speed and rotor-stator gap width on the flow and thermal characteristics. The present computations show that thermal generation and convection changes with rotational speed have a significant effect on the motor temperature distribution, and that the flow and temperature fields in the rotor-stator gap strongly depends on the rotational speed and gap width relative the critical conditions. The heat transfer path in the motor is comparatively analyzed according to the rotational speed and rotor-stator gap.

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