OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1996 · 13 citations · 0 references
EngineeringElectrical EngineeringMechanical EngineeringElectric MachinesHeat TransferPower ElectronicsInduction MachinesMachine CoolingMachine WindingsSuperconducting Magnet SystemsSuperconducting MaterialsSynchronous MachinesField WindingsHigh-field Magnet SystemsHigh-speed Electric MotorsHigh-speed MotorsHigh-speed Synchronous MachinesHigh-temperature SuperconductorsMagnet Cooling SystemsSynchronous Motors
High horsepower synchronous motors with high temperature superconducting (HTS) field windings offer the potential to cut motor operating losses in half compared to conventional energy efficient induction motors available today. The design, construction and test of a prototype, air core, synchronous motor with helium gas cooled HTS field coils will be described in this paper. The work described is part of a US Department of Energy, Superconductivity Partnership Initiative award. The motor uses a modified conventional motor armature combined with a vacuum insulated rotor that contains the four racetrack-shaped HTS field coils. The rotor is cooled by helium gas so that the HTS coils operate at a temperature of 30 K. This paper provides a status report on HTS motor research and development at Reliance Lab., Rockwell Automation that will lead to commercial HTS motors for utility and industrial applications.