A high temperature superconducting hybrid magnetic levitation permanent magnet variable frequency motor
A high-temperature superconducting and variable-frequency motor technology, which is applied to electrical components, holding devices using magnetic attraction or thrust, etc., can solve the problems of unresolved motor environmental temperature effects, affecting motor operating effects, and destroying high-temperature superconducting state operating conditions.
Active Publication Date: 2021-07-06
浙江超鼎机电有限公司
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[0003] The characteristics of the high-temperature superconducting hybrid magnetic levitation permanent magnet variable frequency motor are extremely sensitive to the parameter changes of the operating environment when the performance of the motor is enhanced. It is necessary to control the temperature of the superconducting stator to ensure the stable state of the magnetic flux generated by its winding. , and the heat transfer of the ambient temperature under practical working conditions can easily affect the high-temperature superconducting state in the motor, which in turn affects the operating effect of the motor in the high-temperature superconducting state
[0004] In the prior art, there are also some technical solutions about high-temperature superconducting hybrid magnetic levitation permanent magnet variable frequency motors. For example, a Chinese patent with application number 2009103129070 discloses a hybrid high temperature superconducting linear magnetic levitation synchronous motor, which consists of a A high-temperature superconducting linear synchronous motor composed of a double-sided stator on the frame and a high-temperature superconducting coil mover located between the stators. The double-sided stator is symmetrical about the high-temperature superconducting coil mover. It is characterized in that the motor also includes a permanent magnet track stator and the high-temperature superconducting block magnet suspension mover located above the permanent magnet track stator, and the high-temperature superconducting coil mover is installed on the high-temperature superconducting block suspension mover; this technical scheme combines a high-temperature superconducting linear synchronous motor and a high-temperature superconducting The magnetic levitation mechanism is organically combined and highly integrated, realizing the frictionless levitation propulsion of the linear motor, with large thrust, low loss, simple control, no need for guidance control, and relatively small volume and weight, which can meet some special applications. Such as maglev launch; however, this technical solution does not solve the problem that the motor is susceptible to the ambient temperature in actual working conditions, and the heat transfer from the body of the motor to the components in it destroys the operating conditions of the high-temperature superconducting state
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[0028] As an embodiment of the present invention, an empty groove is provided inside the superconducting block 6, and the bottom of the superconducting block 6 is fixed on the superconducting ring 5; the empty groove extends along the superconducting block 6 to the superconducting ring 5. The inside of the ring 5; the gap 7 stacked between the superconducting rings 5 is provided with a grid ring 81, and the grid ring 81 is fixed inside the ring cylinder 8; the electromagnetic field generated in the high temperature superconducting state is passed through the superconducting stator 3 The low-temperature effect acts on the winding 62, making the winding 62 enter a high-temperature superconducting state, thereby improving its control effect on the magnetic field effect of the current, and the heat transfer between the superconducting ring 5 and the superconducting block 6 will cause heat loss, making the ring The temperature effect of liquid nitrogen in the cylinder 8 is dissipa...
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The invention relates to the technical field of frequency conversion motors, in particular to a high temperature superconducting hybrid magnetic levitation permanent magnet frequency conversion motor, which includes a casing, a permanent magnet rotor and a superconducting stator; It is extremely sensitive, and it is necessary to control the temperature of the superconducting stator, and the heat transfer of the ambient temperature under practical working conditions can easily affect the high-temperature superconducting state in the motor, and then destroy the superconducting state of the motor; The superconducting ring in the guide rotor, through the wrapping structure of the ring cylinder on the superconducting ring, ensures that the superconducting ring is in a stable high-temperature superconducting state, and the vacuum chamber between the coating on the surface of the ring cylinder and the machine box, The temperature change caused by the heating of liquid nitrogen is reduced, and then the high-temperature superconducting state of the superconducting stator in the motor is maintained, and the operating state of the permanent magnet rotor magnetic levitation is ensured, thereby improving the use effect of the high-temperature superconducting hybrid magnetic levitation permanent magnet variable frequency motor.
Description
technical field [0001] The invention relates to the technical field of frequency conversion motors, in particular to a high temperature superconducting hybrid magnetic levitation permanent magnet frequency conversion motor. Background technique [0002] High-temperature superconductivity refers to the superconducting phenomenon produced by some substances with a relatively higher critical temperature than other superconducting substances in the environment of liquid nitrogen. The magnet is suspended without control, and it is applied to the motor-driven spindle, so it has the characteristics of no friction and low loss; for the introduction of the high-temperature superconducting hybrid magnetic levitation permanent magnet frequency conversion motor, please refer to: Lin Yingzhe et al., Magnetic levitation high-speed permanent magnet synchronization Comprehensive Energy Efficiency Analysis and Testing of Motors [J], Military and Civilian Technology and Products, 2017(No.12)....
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IPC IPC(8): H02N15/00
CPCH02N15/00
Inventor 李呈豪
Owner 浙江超鼎机电有限公司