Technology development and patent brief of the hot

2022-10-22
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Introduction to the technology development and patents of permanent magnetic levitation wind turbines at home and abroad

most of the current wind turbines are propeller structures. Due to structural reasons, they are generally placed in a directional way, and they need more than 4 levels of wind power to operate and generate electricity. For breezes below level 2, it is basically difficult to work normally, which limits the use of wind energy and the promotion of technology. With the production of permanent magnet wind turbine, the structure of the generator is simplified, the efficiency is improved, and various losses are significantly reduced. It has the advantages of large output power, high efficiency, low temperature rise, small starting resistance moment and low pressure building speed at the rated low speed. On this basis, researchers have introduced magnetic drive technology and magnetic levitation technology, and developed a more advanced and efficient permanent magnetic levitation wind turbine

relevant patents are listed with "(magnetic + levitation) * wind * (power generation + wind power)" and "wind and (turbine? Or generate?) And (magnet? And levitat? Or Maglev or breeze) "as the search strategy, the Chinese Intellectual Property Office Station and the European Patent Office Station are searched. Now list the relevant patents retrieved:

1, magnetic levitation permanent magnet wind turbine

application No.: cn 0 application date: 1999.08.25

publication number: CN publication date: 2000.11.22

applicant: Zhao Ke inventor: Zhao Ke

Abstract: a magnetic levitation permanent magnet wind turbine, which adopts magnetic transmission technology and magnetic levitation technology, systematically solves the problem of starting a certain amount of wind power in the development of wind turbine to high power. At the same time, through the combination of magnetic transmission technology and magnetic levitation technology, It overcomes the disadvantage of soft output characteristics of permanent magnet rotor wind turbine. The magnetic levitation permanent magnet wind generator pays attention to the impact blade at the center of the support span. It is composed of a prime mover, a magnetic drive speed regulating device, a magnetic wheel, a magnetic levitation permanent magnet generator, etc. Because of its small start-up wind, it can be widely used in various transportation vehicles, factories, rural areas, urban residential areas, high-rise buildings and other fields

sovereignty item: a magnetic levitation permanent magnet wind turbine, which includes: prime power transmission device, magnetic drive speed regulation device, magnetic wheel, magnetic levitation permanent magnet generator and other parts. The utility model is characterized in that: the magnetic wheel in the prime power transmission device maintains a certain gap with the magnetic drive speed regulating device composed of magnetic wheels with different specifications and sizes and different speed ratios; At the same time, the magnetic wheel in the magnetic drive speed regulation device also maintains a gap with the magnetic wheel installed on the rotating shaft of the magnetic levitation permanent magnet generator; A magnetic levitation device is installed between the rotating shaft and the end cover of the magnetic levitation permanent magnet generator

magnetic levitation permanent magnet wind turbine &ipc=h02k49/00

2. New permanent magnet wind turbine

Publication No.: CN publication date: 2003.07.16

application No.: cn X application date: June 27, 2002

applicant: Bai Jinghui inventor: Bai Jinghui

Abstract: the utility model discloses a new permanent magnet wind turbine generator, which is characterized in that the stator winding of the generator in the generator part is wound in the form of double wire parallel winding, the head and tail of the two windings are connected in series through a switching device, and the control circuit B is wound through D1 D2 supplies power to the voltage comparison circuit composed of operational amplifier IC1. The voltage comparison circuit composed of operational amplifier IC1 detects the voltage on the generator stator windings L1 and L2 and outputs signals. By turning on and off the switching devices J1 and J2, the generator stator windings L1 and L2 are changed into series or parallel

sovereignty item: a new type of permanent magnet wind turbine, which is characterized in that the stator winding of the generator in the generator part is wound in the form of double wire parallel winding, the head and tail of the two windings are connected in series through the switching device, and the control circuit B supplies power to the voltage comparison circuit composed of the operation amplifier IC1 through D1 and D2, The voltage comparison circuit composed of operational amplifier IC1 detects the voltage on generator stator windings L1 and L2 and outputs a signal. The signal is amplified by triode Q1 to drive switching devices J1 and J2. The output voltage is controlled by the comparison circuit composed of IC1. Through the on and off of switching devices h, J1 and J2, the generator stator windings L1 and L2 are changed into series or parallel

new permanent magnet wind turbine &ipc=h02p9/14

3. Breeze wind turbine

publication number: CN publication date: 2004.02.25

application number: cn 4. Application date: March 19, 2003

applicant: Xie Jianguo inventor: Xie Jianguo

Abstract: the utility model discloses a breeze wind generator. The fan impeller is installed on the shaft extension of the generator (3) through a bearing, which is characterized in that: a hinged bearing is set at the top of the column, and the generator and the wind vane are symmetrically installed perpendicular to the hinged bearing, both of which are on the same axis; A wind vane is installed at the end of the wind vane. Because the utility model adopts the wind vane structure, the utilization rate of wind energy is greatly improved; The use of permanent magnet generators makes it possible to use the breeze, creating conditions for the popularization of wind power generation

sovereignty item: a kind of breeze wind generator. The wind impeller is installed on the shaft extension of the generator through the bearing. Its characteristics are: hinged bearing is set at the top of the column, and the generator and wind vane are symmetrically installed perpendicular to the hinged bearing, both of which are on the same axis; A wind vane is installed at the end of the wind vane, and a conductive plate is set at the top of the hinged bearing, which cooperates with the carbon brush and transmits the power through the wire

breeze wind turbine &ipc=h02k7/18

4. Magnetically levitated windmill

publication number: US publication date:

application number: US application date:

inventor: Vann Charles S (US)

Abstract: the blades of the wind turbine adopt magnetic levitation, so there is no physical contact with the support parts, avoiding friction. Moreover, the electromagnetic resistance is distributed according to different blade speeds. When the blade stops rotating, the magnetic circuit does not generate electromagnetism, and there is no friction and electromagnetic resistance to organize the rotation of the blade. The blade can start rotating in the wind speed close to zero. Due to the rotating momentum of the blades, the electromagnetic generator gradually accelerates operation, so that the wind turbine can produce the maximum power without stopping

sovereignty item: a wind turbine includes a fixed structural support, two or more suspended magnets attached to the structural support. The suspended magnets make the driving magnets suspended and arranged into a ring shape, and some blades are attached to the ring. Here, the blades rotate around the axis when the wind blows, and there is no physical contact with the support

5. Maglev wind power generator

Publication No.: Wo (A1) publication date:

Application No.: wo2000kr01478 application date:

patent of the same family: Kr inventor: Choi jae-sik (KR)

applicant: Choi Jong Chul (KR); Choi Jae sik (KR)

Abstract: a magnetic levitation wind turbine uses wind and magnetic levitation forces. The permanent magnet materials carried in the blades of the wind turbine rotate in suspension due to the repulsive force of the magnet. The generator has a shaft support frame, a central shaft standing vertically and upward on the support, a large number of blade assemblies, axially embedded in the central shaft, and permanent magnet materials on its upper and lower surfaces, so that the surface generates repulsive force relative to the axial direction. A flywheel is located between the shaft support frame and the fan blade assembly at the lowest position, and embedded in the central shaft. A motor is installed on one side of the flywheel, The generated rotating force is transmitted from the flywheel belt to the chain

sovereignty item: a magnetic levitation wind power generation equipment, which mainly includes a shaft support frame, a central shaft, a large number of hollow cylindrical blade assemblies, a flywheel and a motor. The central shaft is perpendicular to the shaft support frame and connected above it; The blade assembly is axially embedded in the central shaft, where the permanent magnet material is connected with the upper and lower surfaces, resulting in mutually exclusive forces on the axial surfaces; The type of flywheel to be selected for specific use mainly depends on the use itself. The flywheel is located between the shaft support frame and the fan blade assembly at the lowest position, and is connected with the central shaft; A motor is installed on one side of the flywheel, and the rotating force generated is transmitted from the flywheel belt to the chain

6. Omni-directional wind turbine electric generation system

publication number: Wo publication date:

patent of the same family: US (A1) inventor: Watkins Philip g (US)

Application Number: wo2005us15401 application date:

applicant: Global Wind Technology Inc (US); Watkins Philip g (US)

Abstract: a thank-you letter for all-round wind power generation expresses gratitude to two comrades of the Institute, including the wind wheel corresponding to the wind vane carrying wind, which will generate aerodynamic lifting force on its surface and resistance on the other side. The torque generated by these two forces forms rotation, and the motor and the wind wheel are directly coaxial connected, without power transmission connection

sovereignty item: a wind driven power generation system, including: a support structure, a wind wheel with a rotating central shaft, a shaft driven by the wind wheel, a motor with a generator rotor and stator, wherein the stator is fixed relative to the above support structure, the rotor is connected with the above shaft and driven by the above shaft for rotation, and the wind wheel, the above shaft, and the above motor rotor are coaxial and directly connected with each other

7. Wind power generator

publication number: JP publication date:

Application Number: JP application date:

inventor: kamaike Kunihiro

applicant: kamaike Kunihiro; Mizoguchi hideaki

Abstract: the problem to be solved: provide a wind turbine that can generate wind power in a wide range of wind speeds (from a breeze close to zero wind speed to a strong wind exceeding the rated wind speed). Solution: the placement of a (circular) frame 3H radiates outside the blades 21h-23h of the horizontal axis wind turbine 1H, the permanent magnet is placed at the outer end of the outward radiation direction of the blades 21h-23h, a large number of electromagnets m1-m12 are placed on the inner circumferential surface of the (circular) frame 3H and the opposite surface of the permanent magnet, and the control unit 7 is used to control the power supply of electromagnets m1-m12, When the wind speed measured by the measuring unit 6 or the rotation speed of the blade 2H is lower than or higher than the limit level, it cannot provide power to the electromagnet m1-m12, and the control unit 7 makes the electromagnet m1-m12 produce polarity to resist the permanent magnet. This can also be applied to 1V on vertical axis wind turbines

8. Wind power generator

publication number: JP publication date:

Application Number: JP application date:

inventor: miyazono kuniaki; MATSUMOTO KAZUNORI; Miyake hiroshi

applicant: Matsushita Seiko kk

Abstract: the problem to be solved is to provide a wind turbine generator, which can generate electricity even if there is only a breeze. When converting wind energy into electric energy, the speed increase box is not used. The motor has simple structure and low-speed rotation, but has high power generation efficiency. Solution: the composition of the wind turbine generator is: a flat circular base 3, which is connected with the transmission shaft 2. The transmission shaft 2 rotates according to the external wind force. Some permanent magnet materials 9 are installed on the peripheral part of the base 3 and pass through the low surface of the yoke part 8. The coil 11 is placed on the opposite side of the permanent magnet 9 and passes through the second yoke part 10. Therefore, when the permanent magnet rotates, voltage is generated in the coil 11. Therefore, wind turbines can generate electricity, and even in the case of breeze, the power generation efficiency of the motor has been improved

key enterprise: universal wind energy technology Co., Ltd.

the applicant of the above-mentioned sixth patent Wo, universal wind energy technology Co., Ltd

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