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Description
This paper deals with the fabrication and preliminary rotational test of an high-temperature superconducting (HTS) synchronous motor with linear-motor type flux pump exciters. This HTS synchronous motor is composed of copper armature windings, HTS field windings, linear-motor type flux pump exciters, vacuum chamber, cryogenic cooling system, etc.The various core components were manufactured, assembled, and tested to configure the high-temperature superconducting synchronous motor. We manufactured a linear-motor type flux pump as a DC power supply to charge the racetrack coil without contact, which avoids thermal load from current leads. The double racetrack-type HTS field coils are wound with YBCO tapes and cooled directly by the cold heads. The designed operation temperature is about 30 K. The generator operation mode was employed to configure the test environment, including no-load characteristics, load characteristics, full-load efficiency are introduced. The test results are presented in this paper.
