Six-phase static sealing high-temperature superconducting motor

Abstract

The invention relates to a six-phase static sealing high-temperature superconducting motor, which comprises a still stator and a rotating rotor, wherein the rotor is located in the stator; the stator and the rotor are in a salient pole structure; salient poles of the rotor are outward; the salient poles of the stator are inward; the stator is provided with 24 salient poles; the rotor is provided with 23 salient poles; an air gap is reserved between the stator and the rotor; and 12 armature windings and 12 high-temperature superconducting excitation windings are alternately wound on the salient poles of the stator along the circumferential direction of the stator. The six-phase static sealing high-temperature superconducting motor improves the power level of the motor, reduces the cost and the control difficulty of a power converter and achieves static sealing of a cooling medium. The six-phase static sealing high-temperature superconducting motor is simple in structure, low in cost, good in cooling effect and high in operation reliability.

Description

technical field [0001] The invention relates to a high-temperature superconducting motor, in particular to a six-phase statically sealed high-temperature superconducting motor. Background technique [0002] In recent years, with the rapid development of high-temperature superconducting technology, high-temperature superconducting materials have been widely and deeply studied in the fields of motors, flywheel energy storage, and magnetic levitation. Existing research data show that under liquid nitrogen cooling conditions, the capture magnetic field of high-temperature superconducting bulk materials can reach 2.3T (77K), which is much higher than the magnetic field strength of current permanent magnets, while the second-generation high-temperature superconducting Y-series wires have The critical current density has also reached 3×106A / cm2 (77K, 0T). This means that replacing the windings and permanent magnets in traditional motors with high-temperature superconducting materi...

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Problems solved by technology

However, this kind of dynamic rotary sealing device is not only complex in structure and expensive, but also requires regular inspection and maintenance to ensure its sealing performance, which greatly increases the operating cost of the high-temperature superconducting motor.

At the same time, for the conventional three-phase armature winding configuration, due to the constraints of the voltage and current ratings of the power electronic devices in the power converter, the power level of the armature winding is also limited to a certain extent. way to solve it, which will inevitably increase the control difficulty of the power converter

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