CN203879686U - Vertical-axis wind turbine - Google Patents

Vertical-axis wind turbine Download PDF

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Publication number
CN203879686U
CN203879686U CN201420138291.6U CN201420138291U CN203879686U CN 203879686 U CN203879686 U CN 203879686U CN 201420138291 U CN201420138291 U CN 201420138291U CN 203879686 U CN203879686 U CN 203879686U
Authority
CN
China
Prior art keywords
magnetic bearing
blade support
rotating shaft
radial direction
direction magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420138291.6U
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Chinese (zh)
Inventor
杨益飞
邢绍邦
韩晓新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu University of Technology
Original Assignee
Jiangsu University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu University of Technology filed Critical Jiangsu University of Technology
Priority to CN201420138291.6U priority Critical patent/CN203879686U/en
Application granted granted Critical
Publication of CN203879686U publication Critical patent/CN203879686U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Abstract

A vertical-axis wind turbine is composed of a rotary shaft, an upper blade support, a lower blade support and a plurality of blades connected to the upper blade support and the lower blade support. The rotary shaft is sleeved with an upper radial magnetic bearing, a lower radial magnetic bearing, a disc-type permanent magnet generator and a variable inertia flywheel. The upper radial magnetic bearing and the lower radial magnetic bearing are located on the upper portion of the rotary shaft. The upper blade support is supported by the upper radial magnetic bearing and the lower blade support is connected to the periphery of a rotor of the disc-type permanent magnet generator. The rotor is supported by the lower radial magnetic bearing. A stator of the disc-type permanent magnetic generator is located below the rotor and the variable inertia flywheel is located on the lower portion of the rotary shaft. The vertical-axis wind turbine can start when the wind speed is low and cannot stop when the wind speed is high, and electric output is stable.

Description

A kind of vertical axis aerogenerator
Technical field
The utility model relates to vertical axis aerogenerator.
Background technique
Wind-driven generator is divided into horizontal type and vertical-type according to the difference of running shaft.Compared with horizontal axis wind-driven generator, the main advantage of vertical axis aerogenerator is not need yaw system, and design is significantly simplified.
Electric power output and the wind speed relation of wind-driven generator is comparatively close; the startup wind speed of wind-driven generator is generally at 2.5~4m/s; when wind speed reaches specified output capacity during at 12~15m/s, damage generator for fear of too high wind speed, conventionally when wind speed just needs shutdown during at 20~25m/s.
Existing wind-driven generator is less than 2.5m/s at wind speed and cannot starts, and conventionally adopts braking device when wind speed is larger.China Patent No. is that disclose a kind of novel vertical axis aerogenerator be a kind of vertical axis aerogenerator with braking system for 200820119378.3 utility model patent specification.The wind-power electricity generation chance of employing braking device causes the waste of the energy, and output power is unstable.
Model utility content
The purpose of this utility model is to propose a kind ofly can in the time of lower wind speed, start, in the time of higher wind, can not shut down and the vertical axis aerogenerator of electric power stable output.
For achieving the above object, the utility model is taked following technological scheme: this vertical axis aerogenerator, there is rotating shaft, upper blade support, lower blade support and being connected to, some fan blades on lower blade support, in rotating shaft, cover has upper radial direction magnetic bearing, lower radial direction magnetic bearing, disk permanent magnet generator, variable inertial flywheel, on, the top of lower radial direction magnetic bearing in rotating shaft, upper blade support is supported by upper radial direction magnetic bearing, lower blade support is connected to the periphery of the rotor of disk permanent magnet generator, rotor is supported by lower radial direction magnetic bearing, the below of the stator of disk permanent magnet generator in rotor, the bottom of variable inertial flywheel in rotating shaft.
Described variable inertial flywheel comprises and the friction tight flywheel-bracket of rotating shaft, and flywheel-bracket has equally distributed 3 to 4 hollow arm, is provided with successively from the inside to the outside variable-quality piece and spring in the chamber of hollow arm.
In the chamber of described hollow arm and in inner end, be provided with buffering dividing plate.
Variable-quality piece is taking steel ball as good.
The utlity model has following good effect: the vertical axis aerogenerator that (1) the utility model proposes takes radial direction magnetic bearing that the rotor of blade support and disk permanent magnet generator is connected in rotating shaft, magnetic levitation technology is applied on vertical axis aerogenerator, vertical axis aerogenerator can be started in the time of lower wind speed.(2) in the time that rotating shaft turns to a fixed angular speed; variable-quality piece has overcome the elastic force of spring under centrifugal action; make variable-quality piece move away from rotating shaft core in the chamber of flywheel-bracket hollow arm; along with the raising of rotating shaft angular velocity; variable-quality piece is more and more away from axle center; the moment of momentum that the blade of wind-driven generator is provided; be transformed on variable inertial flywheel; control the rotating speed of rotating shaft of wind generator; so can not need to shut down in the time of higher wind, avoided storage battery to damage because exceeding rated angular velocity.(4) variable inertial flywheel is simple in structure and easy to adjust.The quality of variable-quality piece can be adjusted according to the concrete condition of wind-driven generator, the scope that rotary inertia stores is determined by the weight size of variable-quality piece, spring rigidity is easily estimated according to actual load-bearing, will determine vertical axis aerogenerator rotating shaft starts unnecessary moment of momentum to be stored on variable inertial flywheel at which angular velocity.(5) adopt thinner disk generator directly to become one with wind wheel, compact structure, save long and heavy main drive shaft, and disk generator is little to the obstruction of wind, affects little on air current flow.
Brief description of the drawings
Fig. 1 is front schematic view of the present utility model.
Fig. 2 is schematic top plan view of the present utility model.
Embodiment
Embodiment 1
See Fig. 1 and Fig. 2, the utlity model has rotating shaft 1, upper blade support 2, lower blade support 7 and be connected to the some fan blades 3 on upper and lower blade support, in rotating shaft 1, cover has upper radial direction magnetic bearing 4, lower radial direction magnetic bearing 5, disk permanent magnet generator 6, variable inertial flywheel 8.The top of described upper and lower radial direction magnetic bearing 4,5 in rotating shaft 1, upper radial direction magnetic bearing 4 and lower radial direction magnetic bearing 5 are the magnetic bearing of three field structures, and for the ease of controlling, its physical arrangement, parameter are identical.Upper blade support 2 is enclosed within on radial direction magnetic bearing 4 and is supported by upper radial direction magnetic bearing 4, and lower blade support 5 is connected to the periphery of the rotor 6-1 of disk permanent magnet generator 6, and rotor 6-1 is enclosed within on lower radial direction magnetic bearing 5, is supported by lower radial direction magnetic bearing 5.Upper radial direction magnetic bearing 4 and lower radial direction magnetic bearing 5 with respect to the width of air gap of rotating shaft between 0.3mm ~ 0.5mm.
The below of the stator 6-2 of disk permanent magnet generator 6 in rotor 6-1, stator 6 pines are enclosed within rotating shaft, are supported by special stand.
The bottom of variable inertial flywheel 8 in rotating shaft 1.Described variable inertial flywheel 8 comprises and the friction tight flywheel-bracket 8-1 of rotating shaft 1, and flywheel-bracket 8-1 has the hollow arm 8-1a of equally distributed 3 to 4 levels, and the outer end of every hollow arm 8-1a connects vertical elongate body 8-1b.The present embodiment has 4 hollow arm 8-1a, is provided with successively from the inside to the outside buffering dividing plate 8-4, variable-quality piece 8-2 and spring 8-3 in the chamber of hollow arm.Variable-quality piece 8-2 is taking steel ball as good.Gap between buffering dividing plate 8-4 and rotating shaft is buffer area, prevents that steel ball from clashing into rotating shaft.
The variable-quality piece of described variable inertial flywheel and spring are its important design parameter, the large young pathbreaker of variable-quality piece weight has influence on and can store rotary inertia scope, and spring rigid design will determine that wind-driven generator started unnecessary moment of momentum to be stored in variable inertial flywheel in any angular velocity time.

Claims (4)

1. a vertical axis aerogenerator, there is rotating shaft (1), upper blade support (2), lower blade support (7) and being connected to, some fan blades (3) on lower blade support, it is characterized in that: the upper cover of rotating shaft (1) has upper radial direction magnetic bearing (4), lower radial direction magnetic bearing (5), disk permanent magnet generator (6), variable inertial flywheel (8), on, lower radial direction magnetic bearing (4, 5) top in rotating shaft (1), upper blade support (2) is supported by upper radial direction magnetic bearing (4), lower blade support (5) is connected to the periphery of the rotor (6-1) of disk permanent magnet generator (6), rotor (6-1) is supported by lower radial direction magnetic bearing (5), the below of the stator (6-2) of disk permanent magnet generator (6) in rotor (6-1), the bottom of variable inertial flywheel (8) in rotating shaft (1).
2. vertical axis aerogenerator according to claim 1, it is characterized in that: described variable inertial flywheel (8) comprises and the friction tight flywheel-bracket of rotating shaft (1) (8-1), flywheel-bracket (8-1) has equally distributed 3 to 4 hollow arm (8-1a), is provided with successively from the inside to the outside variable-quality piece (8-2) and spring (8-3) in the chamber of hollow arm.
3. vertical axis aerogenerator according to claim 2, is characterized in that: in the chamber of described hollow arm (8-1a) and in inner end, be provided with buffering dividing plate (8-4).
4. vertical axis aerogenerator according to claim 2, is characterized in that: variable-quality piece (8-2) is taking steel ball as good.
CN201420138291.6U 2014-03-25 2014-03-25 Vertical-axis wind turbine Expired - Fee Related CN203879686U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420138291.6U CN203879686U (en) 2014-03-25 2014-03-25 Vertical-axis wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420138291.6U CN203879686U (en) 2014-03-25 2014-03-25 Vertical-axis wind turbine

Publications (1)

Publication Number Publication Date
CN203879686U true CN203879686U (en) 2014-10-15

Family

ID=51680189

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420138291.6U Expired - Fee Related CN203879686U (en) 2014-03-25 2014-03-25 Vertical-axis wind turbine

Country Status (1)

Country Link
CN (1) CN203879686U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850883A (en) * 2014-03-25 2014-06-11 江苏理工学院 Vertical axis wind turbine
CN106321349A (en) * 2015-06-26 2017-01-11 上海得司能源科技发展有限公司 Wind wheel provided with speed complementing mechanism and used for wind power generation
CN108678901A (en) * 2018-07-24 2018-10-19 华中科技大学 A kind of H-type vertical axis windmill energy buffer device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850883A (en) * 2014-03-25 2014-06-11 江苏理工学院 Vertical axis wind turbine
CN106321349A (en) * 2015-06-26 2017-01-11 上海得司能源科技发展有限公司 Wind wheel provided with speed complementing mechanism and used for wind power generation
CN108678901A (en) * 2018-07-24 2018-10-19 华中科技大学 A kind of H-type vertical axis windmill energy buffer device
CN108678901B (en) * 2018-07-24 2023-09-29 华中科技大学 Energy buffer device of H-shaped vertical axis wind turbine

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141015

Termination date: 20180325

CF01 Termination of patent right due to non-payment of annual fee