CN208950772U

CN208950772U - A kind of vertical shaft maglev wind power generator

Info

Publication number: CN208950772U
Application number: CN201821707479.2U
Authority: CN
Inventors: 陈钦柱; 赵海龙; 庞松岭; 林桃贝
Original assignee: Electric Power Research Institute of Hainan Power Grid Co Ltd
Current assignee: Electric Power Research Institute of Hainan Power Grid Co Ltd
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2019-06-07
Anticipated expiration: 2028-10-22

Abstract

The utility model discloses a kind of vertical shaft maglev wind power generators, including shell, stator, flywheel rotor, shaft and first support, the shaft is located in the shell, the branch is set up on the inner wall of the shell, the flywheel rotor is set on the outer wall of the shaft, the stator is set on the bracket, the magnetic levitation system to suspend for controlling the shaft is additionally provided in the shell, shaft is equipped with main brake and stops piece, it is also cased with secondary stop in shaft and stops piece, the bottom of inner walls is equipped with electric telescopic rod, the top of electric telescopic rod is equipped with main brake trading halt, the bottom of shaft is equipped with the trapezoidal brake in section and stops portion, pair stops the outside for stopping piece equipped with the connecting plate that may pass through housing bottom, the bottom of connecting plate is equipped with several tooth blocks, the lower section of shell is equipped with the driving mechanism moved up and down for being drivingly connected plate, the present apparatus being capable of root Cause wind-driven generator that cannot stop working in time according to avoiding wind driven generator principal brake from stopping the failure of component.

Description

A kind of vertical shaft maglev wind power generator

Technical field

The utility model relates to wind power generation field, in particular to a kind of vertical shaft maglev wind power generator.

Background technique

Wind-driven generator is a kind of device for realizing the conversion of wind energy electric energy, mainly there is horizontal axis wind-driven generator, vertical axis Wind-driven generator reaches several mainstream types such as darrieus formula wind wheel.When wind-force reaches incision wind speed, wind blows fan main body leaf Piece rotation drives the rotation of disk generator rotor to do cutting magnetic induction line to the permanent magnetic field on fan stator when fan main body rotates Movement, according to electromagnetic induction principle, generates alternating current in rotor wire.The voltage and current of generator reaches the charging of battery It is stable after the alternating current that wind-driven generator generates is rectified to charge to battery when voltage and current requires.In battery Electric energy does exchange electricity consumption for direct current or after inverter inversion.When wind-force reaches the voltage and current of cut-out wind speed, generator When charging requirement or battery beyond battery are full of, control circuit disconnects charging current automatically, forms off-load, protects electric power storage Pond, which is formed simultaneously damping, reduces wind-driven generator revolving speed protection generator.

Currently, vertical axis aerogenerator supporting structure generallys use mechanical bearing, but when wind speed is lower than 3m/s, wind-force hair Motor is difficult to start, and the serious vertical axis aerogenerator that restricts is sent out to the direction of lower starting speed and bigger wind energy utilization Exhibition.Meanwhile traditional mechanical bearing, in blower operating, fretting wear is big, so that generator life is short, it is often necessary to it replaces, Increase maintenance and maintenance cost.

Further, since when encountering high wind weather, in order to carry out reducing the work of wind-driven generator after battery is fully charged Be more troublesome, and deceleration time is long, the reliability of reduction of speed is too weak, usually will appear because stop stop equipment fault and Cannot be stopped blowing-out power generator in time, to cause the damage of wind-driven generator.

Utility model content

For above-mentioned existing issue, the technical problem to be solved by the present invention is to provide can be according to avoiding wind-force from sending out A kind of vertical shaft maglev wind-force that the main brake of motor stops the failure of component and causes wind-driven generator that cannot stop working in time is sent out Motor.

The utility model provides a kind of vertical shaft maglev wind power generator, including shell, stator, flywheel rotor, shaft And first support, the shaft are located in the shell, the branch is set up on the inner wall of the shell, and the flywheel rotor is set In on the outer wall of the shaft, the stator is set on the bracket, is additionally provided in the shell outstanding for controlling the shaft Floating magnetic levitation system, the shaft are equipped with main brake and stop piece, and secondary stop also is cased in the shaft and stops piece, the inner walls Bottom is equipped with electric telescopic rod, and the top of the electric telescopic rod is equipped with main brake trading halt, and the bottom of the shaft is in equipped with section Trapezoidal brake stops portion, and the secondary outside for stopping piece of stopping is equipped with the connecting plate that may pass through the housing bottom, the bottom of the connecting plate Portion is equipped with several tooth blocks, and the lower section of the shell is equipped with the driving mechanism for driving the connecting plate to move up and down, the electricity Dynamic telescopic rod is electrically connected with external power supply.

Preferably, the driving mechanism includes backup power source and motor, and the output end of the motor is equipped with gear, the tooth Wheel is meshed with several tooth blocks, and the motor is electrically connected with the backup power source.

Preferably, the magnetic levitation system includes first partition, second partition, several upper Permanent-magnet bearings and several lower permanent magnetism Bearing, the first partition are located at the top of the bracket, and the second partition is on the lower section of the bracket, the shaft Equipped with first axle piece and the second axis piece, the first axle piece is located at the top of the first partition, and the second axis piece is located at institute The lower section of second partition is stated, the upper Permanent-magnet bearing is set to above and below the first axle piece, is located at the first axle piece The upper Permanent-magnet bearing of top be connected with the top of the inner walls, the upper Permanent-magnet bearing positioned at the lower section of the first axle piece It is connected with the top of the first partition, the lower Permanent-magnet bearing is set to above and below the second axis piece, is located at described The lower Permanent-magnet bearing of the top of second axis piece is connected with the bottom of the second partition, under the lower section of the second axis piece Permanent-magnet bearing is connected with the bottom of the inner walls.

It preferably, further include displacement sensor, controller, power amplifier, several upper electromagnetic bearings and lower electromagnetic bearing, Institute's displacement sensors are disposed in the housing the top of wall, and the controller is set to the hull outside and passes with the displacement Sensor signal connection, the power amplifier are set to the hull outside and are connected with the controller in a signal way., and the power is put Big device is electrically connected with the upper electromagnetic bearing and lower electromagnetic bearing respectively, and the upper electromagnetic bearing is set to the top of the first partition Portion, the top of the upper electromagnetic bearing are connected with the bottom of the upper Permanent-magnet bearing, and the lower electromagnetic bearing is set to described second The bottom of partition, the bottom of the lower electromagnetic bearing are connected with the top of the lower Permanent-magnet bearing.

Preferably, the upper electromagnetic bearing and lower electromagnetic bearing include electromagnet and the coil for being around in electromagnet exterior, The coil is electrically connected with the power amplifier.

The utility model has the beneficial effects that:

A kind of vertical shaft maglev wind power generator of the utility model makes intracorporal turn of the shell by wind action Axis generates rotation, to make the relative rotation between the stator and flywheel rotor, therefore the flywheel rotor can be defeated outward Alternating current out, since the magnetic levitation system can control the shaft in suspended state, it is achieved that under breeze conditions It can start and generate electricity, improve the utilization efficiency of the wind-driven generator of the present apparatus, and when the external equipment for storage is fully charged After energy, wind-driven generator is needed to stop working in time, so that the equipment for avoiding storage is damaged, passes through the electric telescopic rod Elongation effect so that the main brake trading halt stops piece and be in contact with main stop the shaft is stopped operating in time, After the electric telescopic rod or circuit break down, by the connection function of the driving mechanism and the tooth block of the tooth block, And the connecting plate is driven to decline by the driving mechanism, so that the secondary brake, which stops piece, stops portion's phase mutual connection with the brake Touching, so that it is guaranteed that wind-driven generator can stop described turn in described stop in time after the electric telescopic rod or circuit break down Axis avoids the damage of the present apparatus.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred reality of the utility model Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these Figure obtains other attached drawings.

Fig. 1 is a kind of overall structure diagram of vertical shaft maglev wind power generator of the utility model；

Fig. 2 is a kind of control planning schematic diagram of vertical shaft maglev wind power generator of the utility model.

In figure, 1 is shell, and 2 be stator, and 3 be flywheel rotor, and 4 be shaft, and 5 be first support, stops based on 6 and stops piece, 7 are Pair, which is stopped, stops piece, and 8 be electric telescopic rod, trading halt of stopping based on 9, and 10 stop portion to stop, and 11 be connecting plate, and 12 be tooth block, and 13 be standby electricity Source, 14 be motor, and 15 be gear, and 16 be first partition, and 17 be second partition, and 18 be upper Permanent-magnet bearing, and 19 be lower Permanent-magnet bearing, 20 be first axle piece, and 21 be the second axis piece, and 22 be displacement sensor, and 23 be controller, and 24 be power amplifier, and 25 be upper electromagnetism Bearing, 26 be lower electromagnetic bearing.

Specific embodiment

In order to be best understood from the utility model technology contents, specific embodiment is provided below, and practical to this in conjunction with attached drawing It is novel to be described further.

Referring to Fig. 1 to Fig. 2, the utility model provides a kind of vertical shaft maglev wind power generator, including shell 1, stator 2, flywheel rotor 3, shaft 4 and first support 5, the shaft 4 are located in the shell 1, and the branch is set up in the shell 1 On inner wall, the flywheel rotor 3 is set on the outer wall of the shaft 4, and the stator 2 is set on the bracket, in the shell 1 It is additionally provided with the magnetic levitation system to suspend for controlling the shaft 4, the shaft 4 is equipped with main stop and stops piece 6, in the shaft 4 It is also cased with secondary stop and stops piece 7, the bottom of 1 inner wall of shell is equipped with electric telescopic rod 8, and the top of the electric telescopic rod 8 is equipped with Main brake trading halt 9, the bottom of the shaft 4 are equipped with the trapezoidal brake in section and stop portion 10, and the outside that the secondary brake stops piece 7 is equipped with and can wear The connecting plate 11 of 1 bottom of shell is crossed, the bottom of the connecting plate 11 is equipped with several tooth blocks 12, and the lower section of the shell 1 is set There is the driving mechanism for driving the connecting plate 11 to move up and down, the electric telescopic rod 8 is electrically connected with external power supply, passes through Wind action makes the shaft 4 in the shell 1 generate rotation, to make opposite turn between the stator 2 and flywheel rotor 3 It is dynamic, therefore the flywheel rotor 3 can export alternating current outward, since the magnetic levitation system can control the shaft 4 In suspended state, it is achieved that can start under breeze conditions and generate electricity, the utilization of the wind-driven generator 14 of the present apparatus is improved Efficiency, and after the external equipment for storage is full of electric energy, need wind-driven generator 14 to stop working in time, to avoid storing up The equipment of electricity is damaged, and is acted on by the elongation of the electric telescopic rod 8, so that the main brake trading halt 9 stops with the main brake Piece 6 is in contact, and the shaft 4 is stopped operating in time, after the electric telescopic rod 8 or circuit failure, leads to The connection function of the tooth block 12 of the driving mechanism and the tooth block 12 is crossed, and the connection is driven by the driving mechanism Plate 11 declines, so that secondary stop stops piece 7 and described stop stops portion 10 and contact with each other, so that it is guaranteed that wind-driven generator 14 can Stop the shaft 4 in described stop in time after the electric telescopic rod 8 or circuit break down, avoids the damage of the present apparatus.

Specifically, the driving mechanism includes backup power source 13 and motor 14, the output end of the motor 14 is equipped with gear 15, the gear 15 is meshed with several tooth blocks 12, and the motor 14 is electrically connected with the backup power source 13, by spare Power supply 13 is independent to be electrically connected with the motor 14, and the motor 14 can be such that the gear 15 is rotated after being powered, to make The tooth block 12 that be meshed with the gear 15 is able to drive the connecting plate 11 and moves downward so that it is described it is secondary stop stop piece 7 with The brake stops portion 10 and is in contact, and then stops and stop the shaft 4.

Specifically, the magnetic levitation system includes first partition 16, second partition 17, several upper Permanent-magnet bearings 18 and several Lower Permanent-magnet bearing 19, the first partition 16 are located at the top of the bracket, and the second partition 17 is set under the bracket Side, the shaft 4 are equipped with first axle piece 20 and the second axis piece 21, and the first axle piece 20 is located at the upper of the first partition 16 Side, the second axis piece 21 are located at the lower section of the second partition 17, and the upper Permanent-magnet bearing 18 is set to the first axle piece 20 Above and below, the upper Permanent-magnet bearing 18 positioned at the top of the first axle piece 20 is connected with the top of 1 inner wall of shell, Upper Permanent-magnet bearing 18 positioned at the lower section of the first axle piece 20 is connected with the top of the first partition 16, the lower permanent magnetism axis It holds 19 to be set to above and below the second axis piece 21, lower Permanent-magnet bearing 19 and institute positioned at the top of the second axis piece 21 The bottom for stating second partition 17 is connected, the lower Permanent-magnet bearing 19 and 1 inner wall of shell positioned at the lower section of the second axis piece 21 Bottom be connected, pass through the upper Permanent-magnet bearing 18 and the first axle piece 20 and the lower Permanent-magnet bearing 19 and described second Generated magnetomechanical effects between axis piece 21, so that the shaft 4 is at the state of suspension always, due to reducing machinery Loss brought by friction, realizes breeze-starting, expands the utilization scope of wind resource.Previous wind-force hair machine is less big in wind Shi Wufa starting this is because the frictional resistance between 14 mechanical bearing of generator is excessive caused, therefore greatly reduces ring The restriction in border, the present apparatus can effectively improve generated energy under same wind friction velocity, and can save money, improve wind The utilization efficiency of power generator 14, and do not wear, it not be lubricated, greatly reduce the work of maintenance and replacement, Part service life is extended, cost of use is reduced, also reduces blower down time.

Specifically, further include displacement sensor 22, controller 23, power amplifier 24, several upper electromagnetic bearings 25 and under Electromagnetic bearing 26, institute's displacement sensors 22 are set to the top of 1 inner wall of shell, and the controller 23 is set to the shell 1 It is external and connect with 22 signal of institute displacement sensors, the power amplifier 24 be set to outside the shell 1 and with the control 23 signal of device connection processed, the power amplifier 24 are electrically connected with the upper electromagnetic bearing 25 and lower electromagnetic bearing 26 respectively, institute State the top that electromagnetic bearing 25 is set to the first partition 16, the top of the upper electromagnetic bearing 25 and the upper Permanent-magnet bearing 18 bottom is connected, and the lower electromagnetic bearing 26 is set to the bottom of the second partition 17, the bottom of the lower electromagnetic bearing 26 It is connected with the top of the lower Permanent-magnet bearing 19, the position signal of the shaft 4 is detected by institute's displacement sensors 22, and will The position signal detected and the Setting signal being pre-set in institute's displacement sensors 22 are compared, to obtain error Signal obtains correction signal after the control signal fusing given according to error signal by the controller 23, and by correction signal It is transmitted to the power amplifier 24, the upper electromagnetic bearing 25 and lower electromagnetic bearing 26 are controlled according to the power amplifier 24 The size of current or voltage, and then driving the upper electromagnetic bearing 25 and lower electromagnetic bearing 26 to generate corresponding electromagnetic force will be described Shaft 4 retracts equilbrium position, damage brought by the direction disorder for avoiding the shaft 4 from rotating.

Specifically, the upper electromagnetic bearing 25 and lower electromagnetic bearing 26 include electromagnet and the line for being around in electromagnet exterior Circle, the coil are electrically connected with the power amplifier 24, and the upper electromagnetic bearing 25 and lower electromagnetic bearing 26 are all made of three poles Magnetic bearing, three pole magnetic bearings provide exciting current to the coil using three-phase power inverter, due to three-phase inverter quality Gently, at low cost, therefore greatly reduce the development cost of the present apparatus.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims

1. a kind of vertical shaft maglev wind power generator, which is characterized in that including shell, stator, flywheel rotor, shaft and first Bracket, the shaft are located in the shell, and the branch is set up on the inner wall of the shell, and the flywheel rotor is set to described On the outer wall of shaft, the stator is set on the bracket, and the magnetic to suspend for controlling the shaft is additionally provided in the shell Levitation device, the shaft are equipped with main brake and stop piece, and secondary stop also is cased in the shaft and stops piece, the bottom of the inner walls is set There is electric telescopic rod, the top of the electric telescopic rod is equipped with main brake trading halt, and it is trapezoidal that the bottom of the shaft is equipped with section Brake stops portion, and equipped with the connecting plate that may pass through the housing bottom, the bottom of the connecting plate is equipped with for the secondary outside for stopping piece of stopping Several tooth blocks, the lower section of the shell are equipped with the driving mechanism for driving the connecting plate to move up and down, the electric expansion Bar is electrically connected with external power supply.

2. a kind of vertical shaft maglev wind power generator according to claim 1, which is characterized in that the driving mechanism packet Backup power source and motor are included, the output end of the motor is equipped with gear, and the gear is meshed with several tooth blocks, the electricity Machine is electrically connected with the backup power source.

3. a kind of vertical shaft maglev wind power generator according to claim 1, which is characterized in that the magnetic levitation system Including first partition, second partition, several upper Permanent-magnet bearings and several lower Permanent-magnet bearings, the first partition is located at the bracket Top, the second partition is set to the lower section of the bracket, and the shaft is equipped with first axle piece and the second axis piece, described the One axis piece is located at the top of the first partition, and the second axis piece is located at the lower section of the second partition, the upper permanent magnetism axis It holds and is set to above and below the first axle piece, in the upper Permanent-magnet bearing and the shell of the top of the first axle piece The top of wall is connected, and the upper Permanent-magnet bearing positioned at the lower section of the first axle piece is connected with the top of the first partition, described Lower Permanent-magnet bearing is set to above and below the second axis piece, lower Permanent-magnet bearing and institute positioned at the top of the second axis piece The bottom for stating second partition is connected, lower Permanent-magnet bearing and the bottom phase of the inner walls positioned at the lower section of the second axis piece Even.

4. a kind of vertical shaft maglev wind power generator according to claim 3, which is characterized in that further include displacement sensing Device, controller, power amplifier, several upper electromagnetic bearings and lower electromagnetic bearing, institute's displacement sensors are disposed in the housing The top of wall, the controller are set to the hull outside and connect with the displacement transducer signal, the power amplifier Set on the hull outside and be connected with the controller in a signal way., the power amplifier respectively with the upper electromagnetic bearing and under Electromagnetic bearing electrical connection, the upper electromagnetic bearing are set to the top of the first partition, the top of the upper electromagnetic bearing and institute The bottom for stating Permanent-magnet bearing is connected, and the lower electromagnetic bearing is set to the bottom of the second partition, the lower electromagnetic bearing Bottom is connected with the top of the lower Permanent-magnet bearing.

5. a kind of vertical shaft maglev wind power generator according to claim 4, which is characterized in that the upper electromagnetic bearing It include electromagnet and the coil for being around in electromagnet exterior with lower electromagnetic bearing, the coil is electrically connected with the power amplifier It connects.