Desaturation superconducting switch flux linkage motor

Abstract

The invention discloses a desaturation superconducting switch flux linkage motor, and the motor comprises a rotor core, an air gap and a stator core which are sequentially distributed from inside to outside in the radial direction. The motor also comprises an armature winding which is placed in a stator core groove, an excitation winding which is placed in the middle of stator core teeth, magneticsteels which are placed at the top and the bottom of the stator core teeth respectively, and a cryostat which is used for wrapping the excitation winding, wherein the rotor core and the stator core are both made of ferromagnetic materials. According to the invention, the excitation winding and the armature winding are simultaneously placed on the stator, so the motor has only one physical air gapwithout a rotary winding, and the installation difficulty is reduced; meanwhile, the stator iron core and the rotor iron core are made of ferromagnetic materials, so the torque density of the motor can be effectively improved, and the superconducting consumption is reduced; and the modular cryostat is adopted, so the equivalent air gap flux density can be effectively reduced, and the torque density of the motor is further improved.

Description

technical field [0001] The invention belongs to the field of superconducting electromagnetic devices, and more specifically relates to a desaturated superconducting switch flux linkage motor. Background technique [0002] Based on the classical electromagnetic theory, it can be known that the torque density of the motor mainly depends on the electric load and magnetic load it can choose. However, due to the limitations of the loss distribution, material properties, and available cooling conditions of large-scale wind turbines, it is difficult to greatly increase the electromagnetic load of large-scale conventional motors. Therefore, conventional large-scale wind turbines can only effectively increase the torque and power level by increasing the volume and material consumption. The excitation or excitation and armature of superconducting motors use superconducting materials, and their flux density is much higher than that of conventional conductive materials, which can great...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and improvement needs of the prior art, the present invention provides a desaturated superconducting switched flux-linkage motor. The magnetic field generated by the coil is very large, which leads to serious saturation of the stator teeth, thus hindering the technical problem of increasing the torque density of the motor

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