High-temperature superconducting synchronous motor of rotary pole shoe type

Abstract

The invention discloses a high-temperature superconducting synchronous motor of a rotary pole shoe type, and the motor enables the pole body of a rotor core of the synchronous motor to be separated from a pole shoe, only the pole shoe is rotated, and an exciting winding adopts a high-temperature superconducting strip. The motor comprises an outer stator, a rotor and an inner stator which are coaxially arranged from outside to inside. The outer stator comprises an outer stator iron core and an armature winding. The inner side of the outer stator core is slotted in the circumferential directionto form outer stator teeth and outer stator slots, and an armature winding is embedded in the outer stator. The rotor comprises a rotor core, and the inner stator comprises an inner stator core, a Dewar, a superconducting coil arranged in the Dewar and a liquid nitrogen inlet. A Dewar system is shaped like Chinese character Hui. The motor has the characteristics of reliable low-temperature guarantee, high rotor structural strength, small rotational inertia and high power density, and is expected to be applied to the fields of aerospace, armored vehicles and the like with requirements for the high power density, high rotating speed and high vibration motors.

Description

technical field [0001] The invention relates to the field of special motors, in particular to a rotating pole shoe type high temperature superconducting synchronous motor. Background technique [0002] In recent years, with the multi-electric and full-electric improvement of power and actuators in the military and civilian industries, there is an urgent demand for high power density, high power level, and high reliability motor products, such as aviation generators, starter generators, and armored vehicle generators. Wait. This type of motor also has the characteristics of high operating speed, large mechanical vibration, and high reliability requirements. Due to the limited space for further improvement of magnetic load and electric load in modern conventional motors, it is difficult to further improve the power density of the motor or the efficiency of the motor, and it is difficult to meet the requirements. Superconducting motors use superconducting wire (ribbon) materi...

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Problems solved by technology

This brings great difficulties to the development of superconducting motors, and also limits the further practical application of superconducting motors; in some superconducting motors, all the stator structures wound with superconducting windings are placed in a low-temperature environment, which makes the iron core The structure is limited by the performance of the magnetic material at low temperature, and the power density of the motor will be affected; in addition, the structure of the stator and rotor in the existing superconducting motor is relatively complex, and the number of superconducting coils is large, which can only be applied to wind power and other higher power levels, low In areas where the speed and operating environment are reliable, the adaptability to high-speed, high-vibration application environments is poor

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