소용량 고온초전도 동기모터의 제작 및 특성 실험에 관한 연구

The Design, Manufacture and Characteristic Experiment of a Small-Scaled High-Tc Superconducting Synchronous Motor

This paper describes a series of experiments investigating the operational characteristics of high-Tc superconducting synchronous motor of five to six hundred watts capacity. In this experiment, ac 220V stator phase voltage and DC 4A excitation current are used, and the synchronous speed runs at 1800rpm. Hall Sensors are installed on the pole face and at the side of the Ag/Bi-2223 high-Tc superconducting tape in order to analyze the effect of the time-varying magnetic field on the motor performance when the load changes its value. The experimental observations are compared with the theoretical predictions.